Elevator safety protection device without top layer design

Abstract

The utility model discloses a safety protection device of an elevator without top layer design. The safety protection device comprises a hoistway; the elevator is connected into the hoistway in a sliding manner; the top cover is arranged at the top of the elevator, at least one human shape detection module is arranged on the top cover, the human shape detection module is used for carrying out human shape detection in a to-be-detected space range, and an alarm is arranged on the top cover; and the elevator main controller is connected with the human shape detection module, and the elevator main controller is connected with the alarm and the bottom layer outbound box. Compared with the prior art, the problems of small detection range and low reliability in the prior art can be solved, and the safety and the reliability of the parking apron elevator are improved.

Description

Technical Field

[0001] The utility model relates to an elevator safety protection system, in particular to an elevator safety protection device with a top-less design. Background Art

[0002] Helipads are mainly used for business travel in high-rise buildings, fire rescue, and air rescue in tertiary hospitals. Helipad elevators are an efficient transportation solution for the above-mentioned fields. Due to aviation height restrictions, helipad elevators cannot be made with top-floor shafts and machine rooms, and are generally designed without top floors. Because this structure has no shaft isolation, there is a situation where people on the roof of the building can come into contact with the elevator car and related moving parts, posing a risk of extrusion.

[0003] To reduce the risk, the general safety protection technology is to install photoelectric switches around the shaft for detection, and stop the operation of the elevator when foreign objects are detected. Since the photoelectric switch is a point-to-point line detection, the detection range is small; and the photoelectric switch cannot distinguish the interference of some leaves, paper scraps, and small animals, it is easy to make false detections and has low reliability, which in turn affects the normal operation of the elevator. Utility Model Content

[0004] The utility model provides a safety protection device for an elevator with a top-less design, which can overcome the problems of small detection range and low reliability of current technologies and improve the safety and reliability of the apron elevator.

[0005] In order to achieve the above object, the utility model provides a safety protection device for an elevator without a top floor design, which comprises:

[0006] Well;

[0007] an elevator slidably connected within the hoistway;

[0008] A top cover, the top cover is arranged on the top of the lift, at least one human shape detection module is arranged on the top cover, the human shape detection module is used to perform human shape detection within the range of the space to be detected, and an alarm is arranged on the top cover;

[0009] The elevator main controller is connected to the human detection module, and the elevator main controller is respectively connected to the alarm and the bottom-level external call box.

[0010] As a further description of the above technical solution:

[0011] The human shape detection modules are respectively arranged around the top cover.

[0012] As a further description of the above technical solution:

[0013] The human figure detection module includes a camera and a control unit. The camera is connected to the control unit. The camera is used to collect images within the range of the space to be detected and transmit the collected images to the control unit.

[0014] As a further description of the above technical solution:

[0015] The elevator comprises a car and an operating box, wherein the operating box is arranged on the car and connected to the elevator main controller.

[0016] As a further description of the above technical solution:

[0017] The car is provided with a car door.

[0018] As a further description of the above technical solution:

[0019] The alarm is a voice alarm.

[0020] As a further description of the above technical solution:

[0021] The model of the elevator main controller is FXnU-xxMR / MT.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0023] 1. By adopting the human shape detection module, the problem of narrow recognition range of ordinary photoelectric switches and light curtains can be overcome, and people can be effectively identified, interference from foreign objects can be avoided, and reliability can be improved. It is linked with the elevator main controller, and based on the visual human shape detection results, the elevator operation can be controlled at different stages of the elevator, thereby improving safety.

[0024] 2. In the present utility model, the main function of the human detection module is to monitor whether there are people entering the detection area on the four sides outside the car. The detection area is mainly a concave area formed between the top cover, the car and the top floor of the building after the top cover is lifted by the car. There is space for people to enter and squeeze in this area. Once the human detection module detects that someone has entered or stayed in this area, it will output a signal to the elevator main controller of the elevator. After receiving the signal, the elevator main controller will stop the operation of the elevator, and display the specific side of the person on the car control box and the bottom floor external call box. In addition, the voice alarm on the top cover will issue a voice according to the operating status of the elevator to remind people to leave to prevent danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a reference diagram of the state of the elevator extending out of the hoistway in a safety protection device for an elevator without a top floor design.

[0027] Figure 2 The schematic diagram is a structural diagram of a safety protection device for an elevator without a top floor.

[0028] Figure 3 A top view of a safety protection device for an elevator without a roof.

[0029] Figure 4 This is a control block diagram of a safety protection device for an elevator without a top floor.

[0030] Legend:

[0031] 1. Hoistway; 2. Top cover; 3. Human detection module; 4. Alarm; 5. Elevator main controller; 6. Ground floor call box; 7. Car; 8. Control box. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the embodiments of the present utility model, it should be noted that the terms "upper", "inner", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] See also Figure 1-4 The utility model provides a safety protection device for an elevator without a top floor design, which includes:

[0038] Well 1;

[0039] A lift, the lift being slidably connected in the hoistway 1;

[0040] A top cover 2, the top cover 2 is arranged on the top of the lift, at least one human shape detection module 3 is arranged on the top cover 2, the human shape detection module 3 is used to perform human shape detection within the range of the space to be detected, and an alarm 4 is arranged on the top cover 2;

[0041] The elevator main controller 5 is connected to the human detection module 3, and the elevator main controller 5 is connected to the alarm 4 and the bottom-level external call box 6 respectively.

[0042] The human shape detection modules 3 are respectively arranged around the top cover 2. This can increase the detection range of the human shape detection module and improve safety.

[0043] The human shape detection module 3 includes a camera and a control unit, the camera is connected to the control unit, the camera is used to collect images within the range of the space to be tested, and transmit the collected images to the control unit. The human shape detection module includes a camera and a control unit, the camera and the control unit complete the detection recognition and data processing, and then directly transmit the recognition results to the elevator main controller. The characteristics of the human shape detection module are: the detection range is a three-dimensional area, the coverage is wide, and the area can be set according to the needs of the site. Based on visual monitoring and algorithm calculation, the outline of the face or human shape is judged, and the interference of leaves, paper scraps, flying insects, etc. is effectively shielded, with high accuracy. Specifically, taking an infrared camera as an example, the infrared camera is connected to the control unit of the human shape detection module 3; wherein, the infrared camera can specifically collect images within the range of the space to be tested through a wide-angle lens, and transmit the collected images to the human shape detection model of the control unit of the human shape detection module 3, and the control unit of the human shape detection module 3 can then use the human shape detection model to perform convolution calculation on the image to complete the human shape detection. In another embodiment, the human shape detection module specifically includes an infrared pyroelectric sensor, which is connected to the human shape detection module 3 control unit; wherein the infrared pyroelectric sensor specifically detects human shapes within the detected space by detecting infrared rays emitted by the human body, in order to achieve more accurate human shape detection.

[0044] The elevator comprises a car 7 and an operating box 8 , wherein the operating box is arranged on the car 7 , and the operating box 8 is connected to the elevator main controller 5 .

[0045] The car 7 is provided with a car door.

[0046] The alarm 4 is a voice alarm.

[0047] The model of the elevator main controller 5 is FXnU-xxMR / MT.

[0048] Working principle: When the elevator stops at the top floor of the building, the human detection module remains in the detection state. At this time, if someone enters the detection area, the control box and the ground floor call box will only display the detection results, without an alarm, and the elevator can open and close the door normally. If a passenger enters the car and registers a down command, or someone calls the elevator on the bottom floor and needs to use the elevator, and there are still people in the human detection area, the voice alarm will sound a voice prompt to leave. Only when all four sides are safe will the elevator main controller start the car to move downward; if the person does not leave, the elevator will not run and the car door will remain open. During the downward process, and before the roof is covered on the top floor of the building, if the human detection module on any side detects that a person has entered, it will output a signal to the elevator main controller, and the elevator main controller will immediately stop the operation of the elevator. The detection results of the human detection module will be displayed in real time on the control box and the bottom call box. Specifically, the human detection module includes a camera and a control unit. The camera and the control unit complete the detection recognition and data processing, and then transmit the recognition results directly to the elevator main controller. The control unit is a processor, which is a core computing module. Specifically, the A64 microprocessor based on ARM Cortex-A53 can be used, with a maximum operating frequency of 1.15GHz and a memory of 1G; the voice alarm on the roof will issue a voice prompt to remind the person to leave. When the person leaves the area and the human detection module returns to normal, the elevator main controller will continue to drive the operation of the car. If the person does not leave and exceeds the time set by the elevator main controller, in order to prevent people from being trapped in the car, the apron elevator will drive the car to run slowly upward back to the top floor of the building and open the door to let the person out. During the upward process, after the top cover is lifted by the car, if the human detection module detects that someone has entered the detection area, the elevator stops running, the control box and the ground floor call box display the detection results of the human detection module in real time, and the top cover voice alarm issues a voice prompt to remind the person to leave. When the person leaves the area and the human detection module returns to normal, the elevator main controller continues to drive the operation of the car. If the person does not leave and exceeds the time set by the elevator main controller, in order to prevent people from being trapped in the car, the apron elevator will drive the car to run slowly upward to the top floor of the building and open the door normally.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety protection device for an elevator without a top floor, characterized in that: include: Well; an elevator slidably connected within the hoistway; A top cover, the top cover is arranged on the top of the lift, at least one human shape detection module is arranged on the top cover, the human shape detection module is used to perform human shape detection within the range of the space to be detected, and an alarm is arranged on the top cover; The elevator main controller is connected to the human detection module, and the elevator main controller is respectively connected to the alarm and the bottom-level external call box.

2. The safety protection device for an elevator without a top floor design according to claim 1 is characterized in that: The human shape detection modules are respectively arranged around the top cover.

3. A safety protection device for an elevator without a top floor design according to claim 1 or 2, characterized in that: The human figure detection module includes a camera and a control unit. The camera is connected to the control unit. The camera is used to collect images within the range of the space to be detected and transmit the collected images to the control unit.

4. The safety protection device for an elevator without a top floor according to claim 1 is characterized in that: The elevator comprises a car and an operating box, wherein the operating box is arranged on the car and connected to the elevator main controller.

5. The safety protection device for an elevator without a top floor according to claim 4 is characterized in that: The car is provided with a car door.

6. The safety protection device for an elevator without a top floor according to claim 1, characterized in that: The alarm is a voice alarm.

7. The safety protection device for an elevator without a top floor according to claim 1, characterized in that: The model of the elevator main controller is FXnU-xxMR / MT.

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