Elevator system
By monitoring the entry and exit of people during the elevator door opening and closing process in real time, adjusting the hall door status using control devices, and combining this with voice prompts, elevator safety hazards have been resolved, ensuring passenger safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-03-10
AI Technical Summary
Existing elevators pose safety hazards during door opening and closing, which may result in passengers being pinched or collided with. Current mechanical energy reduction methods cannot completely eliminate the risk.
The system employs a detection device to monitor the entry and exit of personnel during the opening and closing of elevator hall doors in real time, and adjusts the hall door status promptly through a control device. Combined with a broadcast device, it provides voice prompts to ensure safety.
This effectively prevents people from being trapped or collided during the elevator door opening and closing process, fundamentally solving elevator safety risks and ensuring passenger safety.
Smart Images
Figure CN223983321U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to elevator systems. Background Technology
[0002] With the rapid development of society and the economy, hotels, office buildings, and residential buildings have sprung up in large numbers, and elevators have become an indispensable vertical transportation tool within buildings. However, there are frequent incidents such as passengers outside the elevator car being injured by prying open the doors during the closing process, and passengers inside the car being injured by being squeezed by the hall doors when rushing out. These incidents occur frequently during the opening and closing of elevator doors and may cause safety accidents.
[0003] To address the current safety hazards in elevators, the common approach is to minimize the kinetic energy generated when the elevator doors open and close, thereby reducing the potential injuries to passengers who may be trapped or collided with the doors. However, this method alone cannot completely eliminate all safety risks, and in extreme cases, injuries such as being trapped or cut may occur.
[0004] The above description of the background technology is only for the purpose of facilitating a deeper understanding of the technical solution of this utility model (the technical means used, the technical problems solved, and the technical effects produced, etc.), and should not be regarded as an admission or in any form an implication that the information constitutes prior art known to those skilled in the art. Utility Model Content
[0005] The purpose of this invention is to provide an elevator system that can fundamentally solve the safety risks of elevators and ensure elevator safety. It can detect the entry and exit of people during the opening and closing of the elevator hall door in real time and adjust the opening and closing status of the hall door in a timely manner, thereby effectively avoiding the possibility of people being trapped or collided.
[0006] According to an embodiment of this utility model, an elevator system is provided, comprising a hall door frame, a left hall door, a right hall door, a detection device, a control device, and a hall door opening and closing device. The hall door frame is located at each floor. The left and right hall doors are movably connected to the hall door frame in a manner that allows them to rotate and open to both sides of the hall door frame, and the rotation range of each of the left and right hall doors is projected vertically onto the floor as a semi-circle. The detection device is installed above the hall door frame on each floor, and the detection range of the detection device is set to cover the vertical projection of the rotation range of each of the left and right hall doors onto the floor. The detection device is electrically connected to the control device, and the control device is electrically connected to the hall door opening and closing device.
[0007] The detection range of the detection device can be configured as follows: the area formed by connecting the first set point to the fifth set point end to end; wherein the first set point and the second set point coincide with the center of the projection of the left hall door and the right hall door, respectively; the third set point is located on the extension line of the radius of the projection of the right hall door in the inward and outward directions; the fifth set point is located on the extension line of the radius of the projection of the left hall door in the inward and outward directions; the fourth set point is located on the central axis of the first set point and the second set point, and the line connecting the third set point and the fourth set point is tangent to the projection of the right hall door, and the line connecting the fifth set point and the fourth set point is tangent to the projection of the left hall door.
[0008] The detection device is a camera, an infrared detector, or an ultrasonic detector.
[0009] The elevator system further includes a broadcasting device, which is electrically connected to the control device.
[0010] The communication signals between the detection device, control device, hall door opening and closing device, and broadcasting device include input / output signals, RS485 protocol signals, and controller local area network signals.
[0011] The detection device is configured to generate a first detection signal and send it to the control device when an object is present within a set detection range; the control device is configured to send a door action command to the door opening and closing device, and the door opening and closing device is configured to execute the door action command received from the control device and send a door closed or door open signal to the control device; the control device is configured to send a reverse door opening command or a door closing stop command to the door opening and closing device after sending a door closing command and receiving the first detection signal but not receiving a door closed signal; the control device is configured to send a door opening stop command to the door opening and closing device after sending an door opening command and receiving the first detection signal but not receiving a door open signal.
[0012] The detection device is configured to generate a second detection signal and send the second detection signal to the control device when there is no object within the set detection range; the control device is configured to send a closing command to the hall door opening and closing device after receiving the second detection signal following the sending of a reverse opening command or a closing stop command; the control device is configured to send an opening command to the hall door opening and closing device after receiving the second detection signal following the sending of a closing stop command.
[0013] The control device is configured to send voice prompts about the operation of the hall door to the broadcasting device, and the broadcasting device is configured to play the prompt voice by executing the voice prompts received from the control device.
[0014] The control device is configured as a single unit, or the control device comprises two or more separate units interconnected with each other.
[0015] A single unit or two or more individual units are located on the upper beam of the hall door frame. Alternatively, when the control device includes a main control unit and a hall door opening and closing control unit connected to each other, the main control unit is located on the upper beam of the hall door frame.
[0016] The present invention adopts the above technical solution and has the following beneficial effects: The elevator system of the present invention can detect the entry and exit of personnel during the opening and closing of the elevator hall door in real time, and adjust the opening and closing status of the hall door in a timely manner, thereby effectively avoiding the possible situation of personnel being trapped or collided, so as to fundamentally solve the safety risk problem of elevators and ensure elevator safety. Attached Figure Description
[0017] The exemplary embodiments of this utility model will be described in more detail below with reference to the accompanying drawings. For clarity, the same components in different drawings are shown with the same reference numerals. It should be noted that the drawings are for illustrative purposes only and are not necessarily drawn to scale. In these drawings:
[0018] Figure 1 This is a schematic diagram of an elevator according to an embodiment of the present utility model.
[0019] Figure 2 This is a schematic diagram of the projection area of the hall door's rotation range along the vertical direction onto the floor according to an embodiment of this utility model.
[0020] Figure 3 This is a schematic diagram of the detection range set by the detection device according to an exemplary embodiment of the present invention.
[0021] Figure 4 This is a block diagram of an elevator system according to various embodiments of the present utility model.
[0022] Figure 5 This is a block diagram of an elevator system according to one embodiment of the present invention.
[0023] Figure 6 This is a block diagram of an elevator system according to another embodiment of the present invention.
[0024] Figure 7 This is a block diagram of an elevator system according to another embodiment of the present utility model. Detailed Implementation
[0025] The following provides a detailed description of the implementation scheme of this utility model. This implementation scheme is carried out based on the technical solution of this utility model and provides detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following implementation scheme.
[0026] Figure 1 This is a schematic diagram of an elevator according to an embodiment of the present utility model. Figure 1 As shown, the elevator according to the embodiment of this utility model includes a hall door frame 10 and hall doors. The hall door frame 10 is provided at each floor, and the left hall door 21 and the right hall door 22 are movably connected to the hall door frame 10 in a manner that allows them to rotate and open to both sides of the hall door frame 10, respectively.
[0027] Figure 2 This is a schematic diagram of the vertical projection area of the hall door's rotation range onto the floor according to an embodiment of this utility model. (See diagram for example.) Figure 2 As shown, the rotation range of each of the left hall door 21 and the right hall door 22 is a semi-circle projected onto the floor along the vertical direction.
[0028] Specifically, the projection of the left hall door 21, fixed to one side of the hall door frame 10, onto the floor in the vertical direction is point A1. When the left hall door 21 is fully closed, the projection of the left hall door 21 and the non-fixed side of the hall door frame 10 onto the floor in the vertical direction is point B1. When the left hall door 21 is fully open, the projection of the non-fixed side of the left hall door 21 onto the floor in the vertical direction is point C1. During the opening or closing of the left hall door 21, the projection of the non-fixed side of the left hall door 21 onto the floor in the vertical direction moves on the arc B1C1. The projection of the rotation range of the left hall door 21 onto the floor in the vertical direction is formed by line segment A1B1, line segment A1C1, and arc B1C1, and this projection is a semicircle. Point A1 is the center of the projection, line segment A1B1 is the radius of the projection in the left-right direction, and line segment A1C1 is the radius of the projection in the in-outward direction.
[0029] Similarly, the projection of the rotation range of the right hall door 22, formed by line segments A2B2, A2C2, and arc B2C2, onto the floor in the vertical direction is a semicircle. Point A2 is the center of the projection, line segment A2B2 is the radius of the projection in the left-right direction, and line segment A2C2 is the radius of the projection in the in-out direction.
[0030] In other words, the elevator according to the implementation scheme of this utility model abandons the conventional hall and car door opening method, and instead adopts a hall door with a right angle outward opening method without a car door. This hall door with a right angle outward opening method makes full use of space and is especially suitable for home elevators.
[0031] However, besides the risks of passengers outside the elevator being injured while trying to close the door, and passengers inside being squeezed by the door when trying to escape, the right-angle outward-opening hall door of this elevator also poses risks of passengers on both sides being injured while the door is opening. To address these problems, the elevator system according to the embodiment of this utility model includes a detection device 30. (Back) Figure 1 The detection device 30 is installed above the hall door frame 10 on each floor. In addition, the detection range of the detection device 30 is set to cover the vertical projection of the rotation range of each of the left and right hall doors onto the floor.
[0032] Figure 3 This is a schematic diagram illustrating the detection range set by the detection device according to an exemplary embodiment of the present invention. For example... Figure 3 As shown, the detection range of the detection device can be constructed as an area formed by connecting the first set point D1 to the fifth set point D5 end to end. The first set point D1 and the second set point D2 coincide with the centers of the projections of the left hall door 21 and the right hall door 22, respectively, that is, the first set point D1 coincides with point A1, and the second set point D2 coincides with point A2. The third set point D3 is located on the extension line of the radius (i.e., line segment A2C2) of the projection of the right hall door 22 in the inward and outward directions. The fifth set point D5 is located on the extension line of the radius (i.e., line segment A1C1) of the projection of the left hall door 21 in the inward and outward directions. The fourth set point D4 is located on the central axis of the first set point D1 and the second set point D2, and the line connecting the third set point D3 and the fourth set point D4 is tangent to the projection of the right hall door 22, and the line connecting the fifth set point D5 and the fourth set point D4 is tangent to the projection of the left hall door 21.
[0033] On the one hand, the detection range of the detection device 30 needs to completely cover the two projections of the left and right hall doors so that the detection device 30 can detect whether there are people obstructing the opening or closing of the hall doors; on the other hand, the detection range of the detection device 30 cannot be much larger than the two projections of the left and right hall doors, so as to avoid people standing close to the elevator and mistakenly detecting that they will obstruct the opening or closing of the hall doors.
[0034] When an object is present within the set detection range, the detection device 30 can generate a first detection signal. When no object is present within the set detection range, the detection device 30 can generate a second detection signal. Specifically, the detection device 30 can be a camera, an infrared detector, or an ultrasonic detector, etc.
[0035] Figure 4 This is a block diagram of an elevator system according to various embodiments of this utility model. For example... Figure 4 As shown, the elevator system of the present invention includes a detection device 30, a control device 40, a hall door opening and closing device 50, and a broadcasting device 60.
[0036] As an example, the control device 40 can be installed on the crossbeam above the hall door frame 10.
[0037] The detection device 30 is electrically connected to the control device 40, and the detection device 30 is configured to send a first detection signal or a second detection signal to the control device 40.
[0038] The control device 40 is electrically connected to the hall door opening and closing device 50. The control device 40 is configured to send hall door action commands (such as opening commands, closing commands, etc.) to the hall door opening and closing device 50, and the hall door opening and closing device 50 is configured to execute the hall door action commands received from the control device 40 and send a closed or open signal to the control device 40.
[0039] The control device 40 is configured to send a reverse opening command or a closing stop command to the hall door opening and closing device 50 after sending a closing command and receiving a first detection signal but not receiving a closing complete signal. In other words, if someone forcibly enters the elevator before the hall door is fully closed, the hall door can stop closing or reopen to prevent people from being trapped.
[0040] The control device 40 is configured to send a door opening stop command to the hall door opening and closing device 50 after sending an opening command and receiving a first detection signal but not receiving a door opening complete signal. In other words, if someone is standing in front of the hall door before it is opened, the hall door can stop opening to avoid collisions.
[0041] Once the relevant personnel leave the detection range and no longer obstruct the opening or closing of the hall door, the hall door can perform its original opening or closing action. In other words, after sending a reverse opening command or a closing stop command, and upon receiving the second detection signal, the control device 40 sends a closing command to the hall door opening and closing device 50. Alternatively, the control device 40 is configured to send an opening command to the hall door opening and closing device 50 after sending an opening stop command and upon receiving the second detection signal.
[0042] The control device 40 is electrically connected to the broadcasting device 60. The control device 40 is configured to send voice prompts to the broadcasting device regarding the operation of the hall door, and the broadcasting device is configured to play the prompt voice by executing the instructions received from the control device 40.
[0043] In a specific implementation plan, the communication signals between the elevator system's detection device 30, control device 40, hall door opening and closing device 50, and broadcasting device 60 include, but are not limited to, input / output (I / O) signals, RS485 protocol signals, and Controller Area Network (CAN) signals.
[0044] The control device 40 may be configured as a single unit, or it may comprise two or more separate units interconnected. Hereinafter, an elevator system according to an exemplary embodiment of the present invention will be described, depending on the control device 40.
[0045] Figure 5 This is a block diagram of an elevator system according to one embodiment of the present invention.
[0046] like Figure 5 As shown, the functions of the control device 40 are jointly performed by the main control unit 41 and the processing unit 42. As two separate units included in the control device 40, the main control unit 41 and the processing unit 42 are located at the crossbeam on the upper part of the hall door frame 10.
[0047] In this configuration, the processing unit 42 is configured to receive the first detection signal and the second detection signal from the detection device 30, as well as the door closing signal and the door opening signal from the hall door opening and closing device 50. The processing unit 42 is configured to send a hall door action request signal to the main control unit 41. Upon receiving the main control unit 41's approval signal (i.e., a hall door action command), the processing unit 42 forwards the hall door action command to the hall door opening and closing device 50 and sends a voice prompt command to the broadcasting device 60. The main control unit 41, as the core of the entire elevator system, understands the current elevator status and sends the hall door action command to the processing unit 42. The hall door opening and closing device 50, as the actuator of the elevator system, responds promptly to the latest hall door action command. The broadcasting device 60, as a user-facing device, provides a voice prompt upon receiving the voice prompt command from the processing unit 42.
[0048] In this implementation scheme, since signal collection and processing are completed by a separate processing unit 42, the elevator system has strong anti-interference capabilities. The following example illustrates the working logic between various units or devices in the elevator system using a scenario where someone tries to pry open the hall door during its closing process.
[0049] To close the hall door, the main control unit 41 forwards the closing command to the hall door opening and closing device 50 via the processing unit 42. During the process of the hall door opening and closing device 50 executing the closing command, the detection device 30 detects that a person has entered the set detection area and immediately sends the first detection signal to the processing unit 42.
[0050] At this time, the processing unit 42 did not receive the closing signal from the hall door opening and closing device 50, but received the first detection signal from the detection device 30, indicating that before the hall door was fully closed, someone forcibly broke in in hopes of taking the elevator. At this time, the processing unit 42 sent the reverse door opening request signal to the main control unit 41 to request the main control unit 41 to open the hall door opening and closing device 50 in reverse.
[0051] Upon receiving the reverse door opening request signal from the processing unit 42, the main control unit 41 immediately sends a reverse door opening command to the processing unit 42. The processing unit 42 forwards the reverse door opening command to the hall door opening and closing device 50 and issues a voice prompt command to the broadcasting device 60.
[0052] After receiving the voice prompt instruction from the processing unit 42, the broadcasting device 60 broadcasts a message to reassure passengers not to panic and to maintain a safe distance during the elevator door opening process.
[0053] After receiving the reverse opening command forwarded from the main control unit 41 by the processing unit 42, the hall door opening and closing device 50 immediately stops continuing to close the door, brakes and then opens the door in reverse, allowing passengers to continue riding the elevator.
[0054] Figure 6 This is a block diagram of an elevator system according to another embodiment of the present invention. Figure 6 As shown, the functions of the control device 40 are independently performed by the control unit 43. In this embodiment, the control unit 43 is configured to receive the first detection signal and the second detection signal from the detection device 30, as well as the door closing signal and the door opening signal from the hall door opening and closing device 50. The control unit 43 directly sends hall door action commands (such as door opening commands, door closing commands, etc.) to the hall door opening and closing device 50. After receiving the hall door action commands, the hall door opening and closing device 50 responds promptly to the latest hall door action commands. In addition, the control unit 43 directly sends voice prompt commands to the broadcasting device. After receiving the voice prompt commands, the broadcasting device provides voice reminders.
[0055] In this implementation scheme, since signal collection and processing are directly completed by the control unit 43, and as a single unit implementing the control device 40, the control unit 43 is located at the upper beam of the hall door frame 10, which saves space in the lintel. The following example illustrates the working logic between various units or devices in the elevator system when a person is blocking the hall door during the elevator door opening process.
[0056] To open the hall door, the control unit 43 sends the opening command directly to the hall door opening and closing device 50. While the hall door opening and closing device 50 is executing the opening command, the detection device 30 detects that someone has entered the detection area and immediately sends the first detection signal to the control unit 43.
[0057] At this moment, the control unit 43 did not receive the door opening and closing device 50's feedback signal that the door was fully open, but it received the first detection signal from the detection device 30, indicating that someone was standing in front of the door before it was fully opened, which could cause a collision. At this time, the control unit 43 sent a door opening and closing command to the door opening and closing device 50. After receiving the door opening and closing signal, the door opening and closing device 50 immediately braked and waited for the control unit 43's next door opening and closing command.
[0058] Simultaneously, the control unit 43 sends a voice prompt command to the broadcasting device 60. Upon receiving the voice prompt command from the control unit 43, the broadcasting device 60 broadcasts a voice message reminding passengers to maintain a safe distance during the elevator door opening process.
[0059] After the personnel outside the car leave the designated detection area, the detection device 30 sends the second detection signal to the control unit 43. The control unit 43 then sends an opening command to the hall door opening and closing device 50 again. After receiving the opening command, the hall door opening and closing device 50 continues to open the door.
[0060] Figure 7 This is a block diagram of an elevator system according to another embodiment of the present utility model. For example... Figure 7 As shown, the hall door opening and closing device 50 includes a hall door opening and closing control unit 51 and a hall door opening and closing execution unit 52. The control device 40 is a combination of the main control unit 41 and the hall door opening and closing control unit 51. In this case, the hall door opening and closing control unit 51 is configured to receive the first detection signal and the second detection signal from the detection device 30, and it can generate a door closed signal and a door open signal. In this embodiment, the hall door opening and closing control unit 51 sends a request signal for hall door action to the main control unit 41. After receiving the request signal for hall door action, the main control unit 41 sends a hall door action command to the hall door opening and closing control unit 51. After receiving the hall door action command, the hall door opening and closing control unit 51 controls the hall door opening and closing execution unit 52 to respond promptly to the latest hall door action command. After receiving the voice prompt command from the main control unit 41, the broadcasting device 60 provides a voice reminder.
[0061] In this implementation scheme, the hall door opening and closing device 50 simultaneously executes the hall door action command and receives the first and second detection signals from the detection device 30 and sends a hall door action request signal, thus handling part of the functions of the control device 40. In this case, only the main control unit 41 is located at the upper beam of the hall door frame 10, saving lintel space. The following example illustrates the working logic between various units or devices in the elevator system when a person is blocking the hall door during elevator opening.
[0062] In order to open the elevator hall door, the main control unit 41 sends the door opening command directly to the hall door opening and closing control unit 51. During the process of the hall door opening and closing execution unit 52 executing the door opening command, the detection device 30 detects that a person has entered the set detection area and immediately sends the first detection signal to the hall door opening and closing control unit 51.
[0063] If the hall door opening and closing control unit 51 has not completed the door opening and has received the first detection signal from the detection device 30, it means that there are people standing in front of the door before the elevator hall door is fully opened, which may cause a collision. At this time, the hall door opening and closing control unit 51 will send a stop opening request signal to the main control unit 41.
[0064] After receiving the request signal to stop opening the door from the hall door opening and closing control unit 51, the main control unit 41 sends the door opening stop signal to the hall door opening and closing control unit 51, and at the same time sends a voice prompt command to the broadcasting device 60.
[0065] Upon receiving the door opening stop signal, the hall door opening and closing control unit 51 immediately brakes the hall door opening and closing execution unit 52, waiting for the next hall door action command from the main control unit 41.
[0066] After receiving the voice prompt instruction from the main control unit 41, the broadcasting device 30 will broadcast a voice message to reassure passengers not to panic and to maintain a safe distance during the elevator door opening process.
[0067] After the personnel outside the car leave the designated detection area, the detection device 30 sends the second detection signal to the hall door opening and closing control unit 51. The hall door opening and closing control unit 51 sends another door opening request signal to the main control unit 41. The main control unit 41 then sends an opening command to the hall door opening and closing control unit 51. After receiving the opening command, the hall door opening and closing control unit 51 causes the hall door opening execution unit 52 to continue opening the door.
[0068] The elevator system according to this utility model can detect the entry and exit of people during the opening and closing of the elevator hall door in real time, and adjust the opening and closing status of the hall door in a timely manner, thereby effectively avoiding the possibility of people being trapped or collided, fundamentally solving the safety risks of elevators and ensuring elevator safety.
[0069] The various embodiments of this utility model are not an exhaustive list of all possible combinations, but are intended to describe representative aspects of the utility model, and the contents described in the various embodiments can be applied independently or in two or more combinations.
[0070] The description of the exemplary embodiments presented above is merely illustrative of the technical solutions of this utility model and is not intended to be exhaustive or to limit the utility model to the precise forms described. Obviously, those skilled in the art can make many changes and variations based on the above teachings. The exemplary embodiments were chosen and described to explain the specific principles of this utility model and its practical applications, thereby enabling others skilled in the art to understand, implement, and utilize the various exemplary embodiments of this utility model and their various alternatives and modifications. The scope of protection of this utility model is intended to be defined by the appended claims and their equivalents.
Claims
1. An elevator system, characterized in that The elevator system comprises a hall door frame, a left hall door, a right hall door, a detection device, a control device, and a hall door opening and closing device. The hall door frame is arranged at each floor, and the left hall door and the right hall door are movably connected to the hall door frame and can be opened to the two sides of the hall door frame, respectively, and the projection of the rotation range of each of the left hall door and the right hall door on the floor ground in the vertical direction is semicircular. The detection device is installed above the hall door frame at each floor, and the detection range of the detection device is set to cover the projection of the rotation range of each of the left hall door and the right hall door on the floor ground in the vertical direction. The detection device is electrically connected to the control device, and the control device is electrically connected to the hall door opening and closing device.
2. The elevator system of claim 1, wherein, The set detection range of the detection device can be configured as an area formed by connecting the first to fifth set points end to end. The first set point and the second set point coincide with the centers of the projections of the left hall door and the right hall door, respectively; the third set point is located on the extension of the radius of the projection of the right hall door in the inside-outside direction; the fifth set point is located on the extension of the radius of the projection of the left hall door in the inside-outside direction; the fourth set point is located on the central axis of the first set point and the second set point, and the line connecting the third set point and the fourth set point is tangent to the projection of the right hall door, and the line connecting the fifth set point and the fourth set point is tangent to the projection of the left hall door.
3. The elevator system of claim 1, wherein, The detection device is a camera, an infrared detector, or an ultrasonic detector.
4. The elevator system of claim 1, wherein, The elevator system further comprises a broadcast device electrically connected to the control device.
5. The elevator system of claim 4, wherein, The communication signals among the detection device, the control device, the hall door opening and closing device, and the broadcast device include input and output signals, RS485 protocol signals, and controller area network signals.
6. The elevator system according to claim 1, wherein: The detection device is configured to generate a first detection signal when an object exists in the set detection range, and send the first detection signal to the control device; The control device is configured to send a hall door action instruction to the hall door opening and closing device, and the hall door opening and closing device is configured to execute the hall door action instruction received from the control device and send a door closed to position signal or a door opened to position signal to the control device; The control device is configured to send a reverse door opening instruction or a door closing stop instruction to the hall door opening and closing device after sending the door closing instruction, when the first detection signal is received without the door closed to position signal; The control device is configured to send a door opening stop instruction to the hall door opening and closing device after sending the door opening instruction, when the first detection signal is received without the door opened to position signal.
7. The elevator system according to claim 6, wherein: The detection device is configured to generate a second detection signal when an object does not exist in the set detection range, and send the second detection signal to the control device; The control device is configured to send a door closing instruction to the hall door opening and closing device after sending the reverse door opening instruction or the door closing stop instruction, when the second detection signal is received; The control device is configured to send a door opening instruction to the hall door opening and closing device after sending the door opening stop instruction, when the second detection signal is received.
8. Elevator system according to claim 5, characterized in that the control device is configured to send voice prompt instructions on the door movement to the announcement device, and the announcement device is configured to play the prompt voice by executing the voice prompt instructions received from the control device.
9. The elevator system of claim 1, wherein, the control device is configured as a single unit, or the control device comprises two or more separate units connected to each other.
10. The elevator system of claim 9, wherein, the single unit or the two or more separate units are arranged at the crossbeam of the upper part of the landing door frame, or, when the control device comprises a master control unit and a landing door opening and closing control unit connected to each other, the master control unit is arranged at the crossbeam of the upper part of the landing door frame.