Platform elevator passenger safety protection system

Abstract

The invention discloses a platform elevator passenger safety protection system which comprises an elevator control module used for controlling starting and stopping of a platform elevator; the camera module is arranged above the background wall and is used for shooting a passenger scene in the platform ladder; the position recognition module is used for acquiring the passenger image shot by the camera module and recognizing the position of the passenger in the image, a safety range and a warning range are arranged in the lift car, and the range in which the position of the passenger falls is judged; and the action recognition module is used for recognizing the video in the elevator acquired by the camera module, recognizing the action track of the passenger, performing track analysis and judging whether the movement track of the passenger moves towards a safe range or not. The camera shooting module is arranged in the platform elevator, the positions of passengers in the elevator are recognized in real time, the action track of the passengers is predicted according to image analysis, the passengers are reminded to return to the safety range in advance, prompt is mainly performed, the situation that the passengers fall down due to sudden stop of the elevator is avoided, and the comfort of the passengers is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a passenger safety protection system for a platform elevator. Background Art

[0002] Platform elevators usually only have a car bottom and a backboard, but no car top or car wall. When riding the elevator, passengers will be completely exposed to the elevator shaft. In order to facilitate the operation of the elevator, there is a gap between the edge of the car bottom platform and the elevator shaft wall. During the operation of the elevator, if the passenger is too close to the edge of the car bottom platform, the passenger's feet may be caught in the gap between the car bottom platform and the shaft wall, posing a safety hazard. Passengers need to stand in the middle of the platform and cannot get close to the edge of the platform elevator, otherwise it is easy to scratch the shaft and cause safety accidents such as being pinched.

[0003] At present, some platform elevators have added anti-pinch measures, such as using light curtains or some sensors to prevent people from being pinched, but these are often triggered only when people are very close to the shaft. After being triggered, the elevator stops suddenly, and passengers can easily fall and get injured if they are not careful. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a platform elevator passenger safety protection system, which can improve the safety of passengers.

[0005] To this end, the technical solution of the present invention is: a platform elevator passenger safety protection system, comprising:

[0006] Elevator control module, used to control the start and stop of the platform elevator;

[0007] The camera module is placed above the background wall and is used to shoot the passenger scene in the platform elevator;

[0008] The position recognition module obtains the passenger image taken by the camera module and recognizes the position of the passenger in the image. The car is provided with a safety range and a warning range, and determines which range the passenger's position falls into;

[0009] The motion recognition module is used to identify the elevator video obtained by the camera module, identify the passenger's motion trajectory, perform trajectory analysis, and determine whether the passenger's motion trajectory will move towards a safe range;

[0010] The voice playback module is used to play prompt information to remind passengers to move to a safe range.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: when the passenger is outside the safety range and the warning range, the action recognition module compares the passenger's action and position status at T time and T+1 time in real time. If the passenger obviously moves beyond the warning range, a voice prompt is given or the elevator is stopped.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes a weighing module, and a weighing sensor is provided on the car floor plate for weighing the weight of the passengers in the car.

[0013] On the basis of the above scheme and as a preferred scheme of the above scheme: a safety border line and a warning border line are provided on the car floor, the area within the safety border line is a safe range, and the area outside the safety border line and within the warning border line is a warning range. The position recognition module can simultaneously obtain the position of the passenger and the safety border line and the warning border line to determine whether the passenger is within the border line.

[0014] On the basis of the above scheme and as a preferred scheme of the above scheme: rollers are provided on both sides of the car floor plate, and the rollers roll with the shaft wall. A tachometer is provided on the rollers, and the tachometer sends the speed information to the elevator control module. When the speed is too fast, the elevator control module controls the platform elevator to stop at the nearest floor.

[0015] On the basis of the above scheme and as a preferred scheme of the above scheme: foldable handrails are provided on both sides of the background wall of the platform elevator, and a groove is provided on the background wall. The handrails are placed in the groove and hinged to the ends of the groove.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. Install a camera module in the platform elevator to identify the position of passengers in the elevator in real time, predict the movement trajectory of passengers based on image analysis, and remind passengers to return to the safe range in advance. This is mainly to prevent passengers from falling due to sudden stops of the elevator and improve passenger comfort.

[0018] 2. A foldable handrail is installed on the background wall of the platform elevator to provide support for passengers in need and help them keep their bodies steady in the platform elevator. The handrail can be folded up on a daily basis without affecting the normal use of the elevator.

[0019] 3. A weighing module is installed in the platform elevator to obtain the weight of passengers and avoid overweight.

[0020] 4. Rollers are installed on the side of the car floor. When the platform ladder moves up and down, the rollers can roll along the shaft wall and detect the rotation speed of the rollers. When the rotation speed is too fast, it means that there is a problem with the lifting speed of the platform ladder. The platform elevator stops at the nearest floor in time and stops running to ensure the safety of passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of Example 1;

[0022] Figure 2 It is a top view of the structure of Example 1;

[0023] Figure 3 It is a structural schematic diagram of Example 2;

[0024] Figure 4 This is a schematic diagram of the structure of Example 3.

[0025] The markings in the figure are: car floor 1, safety border line 11, warning border line 12, background wall 2, camera module 3, roller 4, handrail 5.

[0026] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, "several" and "a number" mean two or more, unless otherwise clearly and specifically defined.

[0028] Example 1

[0029] The platform elevator passenger safety protection system described in this embodiment includes an elevator control module, a camera module, a position recognition module, a motion recognition module, a voice playback module, and a weighing module; a safety border line 11 and a warning border line 12 are provided on the car floor 1, the area within the safety border line 11 is a safe range, and the area outside the safety border line 11 and within the warning border line 12 is a warning range.

[0030] The elevator control module, i.e. the main electronic control part of the platform elevator, can be used to control the start and stop of the platform elevator and perform comprehensive control over the platform elevator; the camera module 3 is installed above the background wall 2 and can be used to shoot the scenes of all passengers in the platform elevator and obtain video images of the passengers in real time.

[0031] The position recognition module is used to obtain the passenger image taken by the camera module and identify the position of the passenger in the image. There is a safety range and a warning range in the car. The position recognition module can simultaneously obtain the position of the passenger and the safety border line and the warning border line to determine which range the passenger's position falls into; if the passenger is within the safety range, no response will be made. If the passenger is outside the safety range and within the warning range, and the passenger has no abnormal movement, no response will be made to determine whether the passenger is within the border line. If the passenger is outside the warning range, the voice playback module plays a prompt message to prompt the passenger to move to the safety range. If the passenger does not move, the platform elevator is controlled to stop moving.

[0032] The motion recognition module is used to identify the video inside the elevator obtained by the camera module, identify the passenger's motion trajectory, perform trajectory analysis, and determine whether the passenger's motion trajectory will move towards a safe range; when the passenger is outside the safe range and within the warning range, the motion recognition module compares the passenger's motion and position status at time T and time T+1 in real time. If the passenger obviously moves beyond the warning range, a voice prompt is given or the elevator is stopped.

[0033] The car bottom plate is provided with a weighing sensor, and the weighing module is used to weigh the weight of the passengers in the car, so as to obtain the weight of the passengers and avoid overloading of the platform elevator.

[0034] In this embodiment, a camera module is installed in the platform elevator to identify the position of passengers in the elevator in real time, predict the movement trajectory of passengers based on image analysis, and remind passengers to return to the safe range in advance, mainly by giving prompts, to avoid passengers falling due to sudden stops of the elevator, and to improve passenger comfort.

[0035] Example 2

[0036] This embodiment has the same structure as the embodiment 1, except that: rollers 4 are provided on both sides of the car floor 1, and the rollers 4 roll with the shaft wall. A tachometer is provided on the rollers 4, and the tachometer sends the speed information to the elevator control module. When the speed is too fast, the elevator control module controls the platform elevator to stop at the nearest floor.

[0037] A roller 4 is arranged on the side of the car bottom plate. When the platform ladder moves up and down, the roller can roll along the shaft wall, and the rotation speed of the roller is detected. When the rotation speed is too fast, it means that there is a problem with the lifting speed of the platform ladder. The platform elevator stops at the nearest floor in time and stops running to ensure the safety of passengers.

[0038] Example 3

[0039] This embodiment has the same structure as the embodiment 1, except that: foldable handrails 5 are provided on both sides of the background wall 2 of the platform elevator 1, a groove is provided on the background wall 2, the handrails 5 are placed in the groove and are hinged to the ends of the groove.

[0040] A foldable handrail is set on the background wall of the platform elevator to provide support for passengers in need and help them to keep their bodies steady in the platform elevator. The handrail can be folded up on a daily basis without affecting the normal use of the elevator.

[0041] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A platform elevator passenger safety protection system, characterized in that: include: Elevator control module, used to control the start and stop of the platform elevator; The camera module is placed above the background wall and is used to shoot the passenger scene in the platform elevator; The position recognition module obtains the passenger image taken by the camera module and recognizes the position of the passenger in the image. The car is provided with a safety range and a warning range, and determines which range the passenger's position falls into; The motion recognition module is used to identify the elevator video obtained by the camera module, identify the passenger's motion trajectory, perform trajectory analysis, and determine whether the passenger's motion trajectory will move towards a safe range; The voice playback module is used to play prompt information to remind passengers to move to a safe range.

2. A platform elevator passenger safety protection system according to claim 1, characterized in that: When the passenger is outside the safety range and the warning range, the motion recognition module compares the passenger's motion and position status at time T and time T+1 in real time. If the passenger obviously moves beyond the warning range, a voice prompt is given or the elevator is stopped.

3. A platform elevator passenger safety protection system according to claim 1, characterized in that: It also includes a weighing module, and a weighing sensor is arranged on the car bottom plate to weigh the weight of the passengers in the car.

4. A platform elevator passenger safety protection system according to claim 1, characterized in that: A safety border line and a warning border line are arranged on the car floor. The area within the safety border line is a safe range, and the area outside the safety border line and within the warning border line is a warning range. The position recognition module can simultaneously obtain the position of the passenger and the safety border line and the warning border line to determine whether the passenger is within the border line.

5. A platform elevator passenger safety protection system according to any one of claims 1 to 4, characterized in that: Rollers are arranged on both sides of the car floor, and the rollers roll in cooperation with the shaft wall. A speed meter is arranged on the rollers, and the speed meter sends speed information to the elevator control module. When the speed is too fast, the elevator control module controls the platform elevator to stop at the nearest floor.

6. A platform elevator passenger safety protection system according to any one of claims 1 to 4, characterized in that: Foldable handrails are arranged on both sides of the background wall of the platform elevator, and a groove is arranged on the background wall. The handrails are placed in the groove and are hinged to the ends of the groove.

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