KR102224499B1 - Self driving emergency escaping apparatus having alarm system - Google Patents

Abstract

The present invention relates to a self-driving emergency escape device having a disaster warning system, comprising: a guide portion having one end disposed on one side of the emergency escape hole and the other end extending downward, and having a rack gear formed on one side thereof; A scaffolding portion formed to correspond to the emergency escape hole to support the evacuation and moving up and down along the guide portion; One side is coupled to the footrest portion, the other side is gear-coupled to the guide portion of the rack gear to guide the movement of the footrest unit elevating guide portion; And a mainspring unit coupled to the elevating guide unit and moving along the guide unit together with the elevating guide unit, and moving upward with the elevating guide unit through a restoring force after moving downward together with the elevating guide unit.
According to the present invention, it is possible to guide the evacuee from the upper side to the lower side without additional power. Particularly, by combining the mainspring part with the lifting guide part and moving the mainspring part together with the lifting guide part, the overall weight may be reduced, so that the footrest part may be moved more quickly and smoothly when lifting.

Description

Self driving emergency escaping apparatus having alarm system

The present invention relates to a self-driving emergency evacuation device of a moving elevator guide, and more specifically, it is possible to guide an evacuee from the upper side to the lower side without additional power, and to notify the fact of a fire to the relevant building and external organizations through a disaster warning system. It relates to a self-driving emergency evacuation device that can safely evacuate evacuees by notifying them.

Most collective buildings or buildings of a certain size or larger are equipped with various types of evacuation facilities such as stiffeners and evacuation ladders to evacuate in case of fire, or have multiple emergency exits for quick evacuation.

Among them, the stubborn steel, which is often used as an emergency escape device, is installed near a window or veranda, etc., when it is difficult to use stairs or elevators in case of an emergency situation such as a fire in a high-rise building, and is used as a descending rope device by the user's own weight. Because it can come down gradually, it is possible to provide evacuation to the outside quickly and easily in case of a fire in the building.

However, in spite of such various facilities, there is a problem that a large number of deaths and injuries occur every year because safe and rapid evacuation in case of fire is not possible in some buildings.

One of these reasons is that if there are multiple users in one space, the stiffening means is safe after the descent of the stiffening means is completed in order for another user to use the stiffening means again after one user completes the escape by using the stiffening means. This is because it takes a lot of time for the belt to return to its original position, and it is difficult to induce continuous and rapid escape of other users.

In addition, if a fire occurs in a building or building without a balcony, there is a method of guiding the user's movement through the emergency stairs, but a problem in which the emergency stairs cannot be accessed due to a fire or the like occurs and dies from suffocation. There are also cases.

Meanwhile, in the process of evacuating an evacuee through a fire evacuation facility, there may be a problem in which the evacuee is injured or the fire spreads to other floors. At this time, it is very difficult for evacuees to report such facts by calling fire-fighting facilities and related facilities directly. Therefore, when such a situation is detected, there is a need to develop a system that can automatically notify and guide related organizations.

(Korean Patent Registration No. 10-0661605, December 27, 2006)

An object of the present invention is to provide a disaster warning system that can guide evacuees from top to bottom without additional power, and to safely evacuate evacuees by notifying the relevant building and external agencies of the fire through the disaster warning system. It is to provide a self-driven emergency escape device.

The object of the present invention is not limited to the above-mentioned object, and other objects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

In order to achieve the above object, a self-driven emergency escape device equipped with a disaster warning system installed in an emergency escape hole formed in the slab of a building according to an embodiment of the present invention to guide evacuation of an evacuee A guide portion disposed on one side of the escape hole, the other end extending downward, and having a rack gear formed on one side thereof; A scaffolding portion formed to correspond to the emergency escape hole to support the evacuation and moving up and down along the guide portion; One side is coupled to the footrest portion, the other side is gear-coupled to the guide portion of the rack gear to guide the movement of the footrest unit; And a mainspring unit coupled to the elevating guide unit and moving along the guide unit together with the elevating guide unit, and moving upward with the elevating guide unit through a restoring force after moving downward together with the elevating guide unit.

Here, the elevating guide portion includes a housing having a guide portion guide hole formed in the vertical direction so that the guide portion may pass through; A guide roller disposed inside the housing, at least one or more disposed so as to surround both side surfaces of the guide part to move along the guide part; A rotation shaft protruding to both sides of the housing, and having a protruding end coupled with a mainspring portion disposed on one side of the housing; A first gear coupled to the rotation shaft so as to be disposed inside the housing and coupled to the rack gear; Centrifugal brake coupled to one side of the housing; A clutch bearing coupled to the rotating shaft; And an increase gear that is connected to the centrifugal brake and increases the rotational speed transmitted through the pinion gear when the clutch bearing rotates in one direction to increase the rotational speed of the centrifugal brake.

Here, the mainspring portion is provided with a clutch bearing coupled to the rotation shaft on the inner circumferential surface of the region into which the rotation shaft is inserted, and the clutch bearing rotates together with the inner ring and the outer ring when the rotation shaft rotates in a predetermined direction, and when rotating in the opposite direction of the preset direction Only the inner ring can be rotated.

Here, a sensing unit that is coupled to at least one of the scaffolding unit and the elevating guide unit to detect the descending movement of the scaffolding unit, and when the descending drive of the scaffolding unit is detected, wirelessly notifies the control room of the descending driving state of the scaffolding unit or controls the control room. It further includes a disaster warning system having a wireless communication module for receiving signals, and the control room generates a fire alarm at a location within a preset range from the report location based on the report location where the descending drive of the scaffolding was received. It can be provided with a server that generates a fire or crime prevention report.

Here, the wireless communication module may be formed of an IoT communication module capable of bidirectional transmission and reception.

Here, the disaster warning system further includes an alarm for alarming the occurrence of a fire when a descending drive of the scaffolding is detected, and the alarm may be connected to the sensing unit by wire.

The self-driving emergency escape device provided with the disaster warning system according to the present invention can guide an evacuee from the top to the bottom without additional power. In particular, by combining the mainspring part with the lifting guide part and moving the mainspring part together with the lifting guide part, the overall weight is reduced, so that the footrest part can be moved more quickly and smoothly when lifting.

In addition, since there is no wire, there is no fear of breaking the wire, and since the lifting guide descends according to a preset speed along the rack gear of the guide part, it is possible to prevent the evacuee from falling, thereby preventing a safety accident.

Additionally, evacuees can be safely evacuated by notifying the relevant building and external organizations of the fire through the disaster warning system using the IoT module.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

1 is a perspective view of a self-driving emergency escape device according to an embodiment of the present invention.
2 is a perspective view showing a state in which the footrest of the self-driving emergency escape device according to an embodiment of the present invention has moved downward.
3 is a detailed view as viewed from a first direction of a connection state of the elevating guide unit and the guide unit according to an embodiment of the present invention.
4 is a detailed view as viewed from a second direction in a connection state of the elevating guide unit and the guide unit according to an embodiment of the present invention.
5 is a system diagram of a self-driving emergency escape device having a disaster warning system according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this case, it should be noted that the same components in the accompanying drawings are indicated by the same reference numerals as possible. In addition, detailed descriptions of known functions and configurations that may obscure the subject matter of the present invention will be omitted. For the same reason, some elements in the accompanying drawings are exaggerated, omitted, or schematically illustrated.

In addition, throughout the specification, when a certain part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated. In addition, throughout the specification, the term "~on" means that it is located above or below the target part, and does not necessarily mean that it is located above the gravitational direction.

The self-driving emergency escape device having a disaster warning system according to an embodiment of the present invention is installed on the slab of a building to safely evacuate people in an emergency situation. It can be installed along the emergency escape hole (EH). In addition, it can be installed in plurality for the evacuation of evacuees. In the present invention, the emergency evacuation device is one that may be continuously installed in a staggered direction along the upper and lower floor slabs in consideration of the situation of the building, or may be installed on a specific slab, and its installation location is not limited.

1 is a perspective view of a self-driving emergency escape device according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which the footrest of the self-driving emergency escape device according to an embodiment of the present invention has moved downward.

Referring to FIGS. 1 to 2, a self-driven emergency escape device having a disaster warning system installed in an emergency escape hole formed in a slab of a building according to an embodiment of the present invention to guide evacuation of an evacuee ( 10) is configured to include a guide unit 110, a scaffolding unit 120, an elevating guide unit 130, a spring unit 140, and a disaster warning system 150.

First, the emergency escape hole EH is not formed in a square shape, but may be formed in an approximate'convex' shape. The guide part 110 may be disposed along the protruding groove area. The bar-shaped guide part 110 can be extended downward through the emergency escape hole EH formed as described above, thereby increasing the area of use of the emergency escape hole EH.

The guide part 110 has one end coupled to the fixing plate 112 at the top of the emergency escape hole EH, the other end extending downward, and having a rack gear 111 formed on one side thereof. The rack gear 111 is formed over the entire area in which the elevating guide 130 moves from the top to the bottom. In addition, the guide part 110 may form a carbon fiber coating layer along the circumferential direction of the guide part 110 excluding the rack gear 111. Through this, while increasing the strength of the guide unit 110, it is possible to provide a stable and fast movement by reducing the frictional force with the elevating guide unit 130 moving along the guide unit 110.

The scaffolding portion 120 is formed to correspond to the emergency escape hole EH to support the evacuee and move up and down along the guide portion 110.

The elevating guide unit 130 has one side coupled to the lower surface of the footrest unit 120 and the other side is gear coupled to the rack gear 111 of the guide unit 110 to guide the movement of the footrest unit 120. The elevating guide 130 is coupled to the rear of the footrest 120 and protrudes, and the mainspring 140 is coupled to the protruding front and moves up and down together with the mainspring 140.

The spring portion 140 is coupled to the elevating guide portion 130 and moves along the guide portion 110 together with the elevating guide portion 130, and moves downward with the elevating guide portion 130, and then elevates through the resilience force. It moves upward together with the guide part 130.

The disaster warning system 150 is not shown in FIGS. 1 to 2, and will be described in more detail with reference to FIG. 5.

Hereinafter, each configuration will be described in more detail.

3 is a detailed view of the connection state of the elevator guide unit and the guide unit according to an embodiment of the present invention as viewed from a first direction, and Fig. 4 is a view showing the connection state of the elevator guide unit and the guide unit according to the embodiment of the present invention in a second direction. It is a detailed view seen from.

With reference to Figures 3 to 4 will be described in more detail with respect to the footrest 120, the elevating guide 130 and the spring portion 140.

First, the scaffolding unit 120 will be described. The footrest portion 120 includes a footrest plate 121 and a handle 122.

The foot support plate 121 forms an area that supports the evacuee's feet, and may be formed of a non-flammable transparent material so that the lower state can be confirmed. In addition, the foot support plate 121 is coupled to a plurality of grating structures 1211 on the lower side, so that the bending strength may be increased.

The handle 122 is coupled to the upper surface of the foot support plate 121 to induce gripping of the evacuee, thereby preventing a safety accident that falls while moving downward. At this time, the handle 122 may be provided with a contact sensor (not shown) capable of sensing the gripping state of the evacuee. Since the scaffolding unit 120 of the present invention operates by self-driving, it is not driven by power supplied from the outside, but can be operated through a replaceable primary battery. The contact sensor may induce safe evacuation of the evacuee by providing a voice warning message guiding the evacuee to grip the handle 122 when the evacuee does not hold the handle.

Then, as described above, the elevating guide unit 130 is coupled to the lower surface of the footrest unit 120 on one side, and the other side is geared to the rack gear 111 of the guide unit 110 so that the footrest unit 120 As moving together, including the housing 131, the guide roller 132, the rotation shaft 133, the first gear 134, the second gear 135, the ratchet gear 136, and the centrifugal brake 137 It is composed.

The housing 131 is formed in a box shape with an accommodation space formed therein, and guide part guide holes 1311 are formed in each of the vertical directions so that the guide part 110 can pass therethrough. In addition, the housing 131 has through holes formed on both sides facing each other so that the rotation shaft 133 can be coupled therethrough.

The guide roller 132 is rotatably coupled to the inside of the housing 131 and includes at least one or more so as to surround both sides of the guide unit 110 to move along the guide unit 110, and the first guide roller It is provided with (1321) and a second guide roller (1322). The first guide rollers 1321 are disposed in a pair on the upper side while surrounding both side surfaces of the guide unit 110 and move. The second guide roller 1322 is disposed in a direction perpendicular to the first guide roller 1321 from the lower surface of the first guide roller 1321. At this time, the second guide roller 1322 is disposed on the rear side of the rack gear 111, and is disposed to surround the guide 100 together with the first gear 134 and the second gear 135, and the first guide roller ( It moves along the guide part 110 in a direction perpendicular to the moving direction of 1321).

In this way, since the first guide roller 1321 and the second guide roller 1322 are disposed in a right angle direction with respect to the guide unit 110 to form a structure surrounding each other, a stable movement of the elevating guide unit 130 is provided. can do. Accordingly, even when the evacuee rides on the scaffold 120 in a biased state, an eccentricity is not formed, so that a stable movement of the scaffold 120 can be provided. In addition, the carbon fiber coating layer formed on the surface of the guide portion 110 in contact with the guide roller 132 may provide smooth movement of the guide roller 132.

The rotation shaft 133 is disposed at both ends of the through-holes formed on both sides of the housing 131, and one end is coupled to the mainspring 140 coupled to one side of the housing 131, and the other end is the other side of the housing 131. It is coupled with the ratchet gear 136 coupled to.

The first gear 134 is coupled to the rotation shaft 133 to be disposed inside the housing 131 and is geared to the rack gear 111. Since the first gear 134 is disposed to face with the guide roller 1322 around the guide part 110, it is possible to provide a stable movement when the first gear 134 moves along the rack gear 111. .

The second gear 134 is disposed under the first gear 134 and moves along the rack gear 111 together with the first gear 134, while the first gear 134 is stable along the rack gear 111. You can assist in moving to.

The clutch bearing 139 is coupled along the rotation shaft 133 extending from the first gear 134. One end of the rotation shaft 133 is formed to protrude out of the housing 131. The clutch bearing 139 is gear-engaged with the centrifugal brake 137 to maintain the gear-engaged state with the centrifugal brake 137 when the scaffolding part 120 moves downward, so that the centrifugal brake 137 is in a load state. . On the other hand, the clutch bearing 139 releases a state connected to the centrifugal brake 137 when the footrest 120 rises to prevent the centrifugal brake 137 from being placed in a load state. Therefore, when it is wound through the restoring force of the spring portion 110, the footrest portion 120 can be quickly moved along the rack gear 121 without the influence of the centrifugal brake 137.

The centrifugal brake 137 is rotatably geared to the clutch bearing 139 outside the housing 131. The centrifugal brake 137 may reduce the downward moving speed of the scaffold 120 so that the scaffold 120 moving along the guide 120 is stopped at a preset position. Therefore, it is possible to prevent the evacuee from moving rapidly when moving downwards while boarding the footrest unit 120, and since there is no need to perform an additional operation for braking, the evacuee can be safely moved.

The speed increase gear 139 serves to improve the braking force of the centrifugal brake 137 by increasing the rotational speed transmitted through the first gear 134 when the clutch bearing 144 rotates in one direction. In the past, when the pinion gear moves along the rack gear, it is difficult to perform braking using only the centrifugal brake because it is not possible to obtain sufficient rotational force for braking. For this reason, in order to accelerate the braking of the centrifugal brake, a method of increasing the size of the centrifugal brake can be applied, but this has a problem in increasing the overall weight.

In the present invention, the speed increase gear 139 can increase the braking force of the centrifugal brake 137 by increasing the rotation transmitted through the first gear 134, and due to this, the centrifugal brake 137 can be used as a scaffold for evacuees ( It is possible to quickly and safely stop the scaffolding unit 120 at a preset position when moving downward after boarding 120).

The fixing frame 138 is fixed along the circumferential direction of the lower end of the housing 131, and one side is coupled to the footrest 120 to firmly fix the footrest 120 and the elevating guide 130. .

The spring part 140 is coupled to the lifting guide part 130 and moves along the guide part 110 together with the lifting guide part 130, and the resilience of the tape spring after moving downward together with the lifting guide part 130 It is moved to the upper side together with the elevating guide 130 through. Accordingly, the spring part 140 may allow the footrest 120 and the guide part 120 connected to the spring part 140 to rise and descend through the restoring force of the tape spring of the spring part 140.

In the related art, a mainspring device having a wire and a plurality of gears are fixed to the upper side of the emergency escape hole, form a structure in which a footrest part is connected to the wire, and a structure in which the wire supports the footrest part is formed. That is, since the scaffolding part is supported by the wire, when the evacuee stepped up to the scaffolding part, the tensile force was concentrated on the wire, which deteriorated the use durability of the wire, which could greatly increase the possibility of breakage. For this reason, if the wire is broken during the descending of the scaffold, the scaffold falls to the floor as it is, so the evacuee is greatly exposed to the risk of a safety accident, and thus the need for an additional braking device is required. In addition, there is a problem in that maintenance cost increases because the scaffolding part must be replaced when it appears on the floor.

However, in the present invention, the footrest 120 and the elevating guide 130 are moved along the rack gear 111 and the first gear body 134 and the second gear body 135 through the driving force of the spring. That is, the frame part of the present invention is not a structure for winding a wire, but the scaffolding part together with the elevating guide 130 can be moved upward through the restoring force of the tape spring wound on the frame part, so that it can be stably moved without shaking. There is a characteristic that there is.

Accordingly, since the scaffold 120 and the elevating guide 130 can be constantly elevated, it is possible to prevent a height difference due to the elevating movement of the scaffold 120, thereby inducing a safe getting on and off. In addition, since the load of the evacuee is transmitted to the rack gear 111, the first gear body 134, and the second gear body 135 when the evacuee moves down, the guide part 110 is broken or suddenly while driving. Since there is little possibility of a descending problem, there is no need for a separate braking device. Therefore, there is a feature that can move the evacuee to the lower side more stably.

Meanwhile, in the present invention, a luminous capsule (not shown) may be embedded along the circumferential direction along the inner circumferential surface of the emergency escape hole of the slab. The luminous capsule is protruding from the inside so that it can easily explode when the footrest 120 moves downward to emit light along the circumferential direction of the emergency escape hole, so in case of emergency escape, even if there is no light source around it, it is dangerous to the area of the escape hole. You can increase the visual effect to become an element. In addition, by continuously providing a message such as "feeling attention" through the above-described voice providing unit, it is possible to prevent a safety accident from occurring due to a person waiting to fall to the lower side while the footrest unit 120 is descending downward. have.

5 is a system diagram of a self-driving emergency escape device having a disaster warning system according to an embodiment of the present invention.

Referring to FIG. 5, a disaster warning system of a self-driving emergency escape device having a disaster warning system will be described in detail.

The disaster warning system 150 is composed of a sensing unit 151, a wireless communication module 152, a control room 153, and an alarm 154, and wirelessly notifies the control room of the descending driving state of the scaffolding unit, or Can receive the control signal of.

The sensing unit 151 is coupled to at least one or more of the footrest unit 120 and the elevating guide unit 130 to sense the downward movement of the footrest unit 120, and may be provided with a plurality of sensors. . In this case, the sensor may be installed on each of the footrest 120, the elevator guide 130, and the fire door (not shown) to enable accurate sensing and three-dimensional disaster situation identification through multiple sensing. The sensing unit 151 may be formed of a motion detection sensor or an ultrasonic sensor capable of detecting motion.

The motion information of the footrest unit 120 or the elevating guide unit 130 obtained through the sensing unit 151 is wirelessly transmitted to the control room 152 through the wireless communication module 152. The wireless communication module 153 may be formed of an IoT communication module. In this case, the IoT communication module may be formed as a LoRaWAN type transceiver capable of communicating within a radius of 3 to 5 km through one gateway terminal. In addition, the IoT communication module is capable of bidirectional communication with the server of the control room 153 to be described later. Accordingly, it is possible to check whether or not the IoT module of the sensing unit operates normally through the control room 153.

The control room 153 sets the reporting position based on the reported position of the descending drive of the scaffolding unit 120, and increases the alarm time or alarm pattern compared to other positions for a position within a preset range from the reporting position. A fire alarm can be generated. At this time, the control room 153 includes a wireless communication module and a server capable of communicating with the wireless communication module 153.

When the corresponding building is a collective building such as an apartment or a shopping mall, the server may provide a target transmission considering the corresponding household, floor, building, or complex. In particular, focused fire alarms within at least 3 floors on each of the upper and lower floors and within the range of 3 rooms to the left and right, centering on the received report location, and notify the fire situation through user fire alarms provided in each room. And, you can guide the evacuation route. At this time, the server calculates the optimal evacuation route based on the reported location, and can be distributed and guided to a plurality of self-driving emergency evacuation devices. Therefore, it is possible to guide efficient evacuation by preventing evacuees from being driven to a self-driving emergency escape device in one location.

In addition, the server has fire department and police department information. The server can report the occurrence of a fire while providing information on the report location to the fire department and the police station.

The alarm 154 may be connected to the sensing unit 151 by wire, and generates a fire when the descending drive of the scaffolding unit 120 is detected. In this case, the alarm 154 may be distributedly arranged in a corridor or a room of each collective building.

On the other hand, the embodiments of the present invention disclosed in the present specification and the drawings are only provided specific examples to facilitate the description of the present invention and to aid understanding of the present invention, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those of ordinary skill in the art that other modifications based on the technical idea of the present invention may be implemented.

110: guide part 111: rack gear
120: footrest portion 121: footrest plate
122: handle 130: lifting guide
131: housing 132: guide roller
133: rotation shaft 134: first gear
135: second gear 136: ratchet gear
137: stubborn period 140: mainspring
141: clutch bearing 150: disaster warning system

Claims (6)

In the elevating guide mobile type self-driving emergency escape device installed in an emergency escape hole formed in a building slab to guide evacuation of an evacuee,
A guide portion having one end disposed on one side of the emergency escape hole, the other end extending downward, and having a rack gear formed on one side thereof;
A scaffolding portion formed to correspond to the emergency escape hole to support the evacuation and moving up and down along the guide portion;
One side is coupled to the footrest portion, the other side is gear-coupled to the rack gear of the guide portion to guide the movement of the footrest portion, the lifting guide unit moving together with the movement of the footrest portion; And
Having a tapered spring, a mainspring part coupled to the lifting guide part to move the lifting guide part and the footrest part together up and down along the guide part through the restoring force of the tapered spring; including the lifting guide part movable self-driving emergency emergency Escape device.
The method of claim 1,
The elevating guide unit,
A housing having a guide portion guide hole formed in an up-down direction so that the guide portion can be disposed through it;
A guide roller disposed inside the housing, at least one or more disposed so as to surround both side surfaces of the guide part to move along the guide part;
A rotation shaft protruding to both sides of the housing and having a protruding end coupled to the mainspring portion disposed on one side of the housing;
A first gear coupled to the rotation shaft so as to be disposed inside the housing and coupled to the rack gear;
A centrifugal brake coupled to one side of the housing;
A clutch bearing coupled to the rotation shaft; And
And an increase gear that is connected to the centrifugal brake and increases the rotational speed transmitted through the pinion gear when the clutch bearing rotates in one direction, thereby increasing the rotational speed of the centrifugal brake. Drive emergency escape device.
The method of claim 2,
The mainspring part,
A clutch bearing coupled with the rotation shaft is provided on an inner circumferential surface of the region into which the rotation shaft is inserted,
The clutch bearing,
When the rotation shaft rotates in a preset direction, the inner ring and the outer ring rotate together, and when rotating in the opposite direction to the preset direction, only the inner ring is rotated.
The method of claim 1,
A sensing unit that is coupled to at least one of the scaffolding unit and the elevating guide unit to detect the descending drive of the scaffolding unit, and when the descending drive of the scaffolding unit is detected, wirelessly notifies the control room of the descending driving state of the scaffolding unit, or Further comprising a disaster warning system having a wireless communication module for receiving a control signal of the control room,
The control room,
Elevating guidance, characterized in that it comprises a server that generates a fire alarm at a location within a preset range from the report location based on the report location where the descending drive of the scaffolding is received, and generates a fire or crime prevention report to a related organization Sub-moving self-driving emergency escape device
The method of claim 4,
The wireless communication module,
An elevating guide mobile self-driving emergency escape device, characterized in that it is an IoT communication module capable of bidirectional transmission and reception.
The method of claim 4,
The disaster warning system,
Further comprising an alarm for alarming the occurrence of a fire when the descending drive of the scaffolding is detected, wherein the alarm is connected to the sensing unit by wire.

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