Elevator calling apparatus for elevator system, and elevator system

Abstract

An elevator calling apparatus for an elevator system, and an elevator system. The elevator calling apparatus comprises: a controller; a first three-dimensional sensor (1), disposed at a call floor of the elevator system and communicatively connected to the controller; and a visualization area generator (2), communicatively connected to the controller, and capable of generating a visualization area on the floor of the call floor such that the visualization area is located within a sensing area of the first three-dimensional sensor, the visualization area comprising an up-direction area (21) and / or a down-direction area (22). The first three-dimensional sensor (1) is configured to detect whether a passenger is present in the up-direction area (21), and when the presence of a passenger is detected in the up-direction area (21), the controller generates an up signal and assigns a car to move to the call floor while notifying the passenger that the call is successful. The first three-dimensional sensor (1) is further configured to detect whether a passenger is present in the down-direction area (22), and when the presence of a passenger is detected in the down-direction area (22), the controller generates a down signal and assigns a car to move to the call floor while notifying the passenger that the call is successful.

Description

Elevator call device for an elevator system and elevator system TECHNICAL FIELD

[0001] The present application relates to an elevator call device for an elevator system and an elevator system. BACKGROUND

[0002] A wide variety of elevator call buttons are known in the art. Many of these buttons use micro-stroke mechanical switches, others use proximity sensing, and still others use optical modes. However, these call buttons can have complex mechanical structures with a large number of parts, thereby increasing manufacturing costs relative to the functionality provided. Furthermore, such mechanical structures can be subject to mechanical wear and tear, thus requiring maintenance and / or replacement, further increasing costs. Physical buttons can have raised and recessed areas that can accumulate dirt and bacteria. Furthermore, these raised and recessed areas can make it difficult to clean the physical buttons, thereby preventing complete removal of dirt and bacteria. The above problems can be compounded in doctors' offices and hospitals, as well as in factories where dirty work can be performed. This is because bacteria and dirt can be transferred from one passenger onto the buttons, and then onto other passengers, which can affect health.

[0003] Traditional physical buttons require some sort of contact, even the so-called proximity sensing type. Thus, in order to register a call, a thumb, finger, or other object must be directly aimed at the button. In addition to the hygiene issues described above, it can be difficult to directly or physically touch the button to call the elevator when carrying packages or when the fingers are not free to move. Furthermore, the field of view of the elevator call button can be obstructed even by one's own hand, thereby further increasing the difficulty of calling the elevator. Similarly, locating the precise position of the call button in order to press or contact it can be a difficult task for visually impaired people.

[0004] Furthermore, the maintenance costs of buttons with moving parts can be high due to wear and tear, and the chances of damage due to intentional destruction and misuse can increase. Furthermore, the ability to customize the aesthetic appearance of the hall call button to suit the architectural design can be difficult when the mechanical structure thereof needs to be changed.

[0005] In view of the above, non-contact elevator call buttons have been developed that address some of the above problems of physical elevator call buttons. These systems can be complex, requiring multiple sensors and complex wiring and systems. SUMMARY

[0006] To overcome the above problems, the application provides an elevator call device for an elevator system, comprising: a controller; a first stereoscopic sensor arranged at a call floor of the elevator system and communicatively connected to the controller; a visualization area generator communicatively connected to the controller and capable of generating a visualization area on a floor of the call floor such that the visualization area is located within a sensing area of the first stereoscopic sensor, the visualization area comprising an upgoing area and / or a downgoing area, wherein the first stereoscopic sensor is configured to detect whether a passenger is present in the upgoing area, and when the presence of a passenger is detected in the upgoing area, the controller generates an upgoing signal and assigns a car to move to the call floor while informing the passenger that the call is successful; the first stereoscopic sensor is further configured to detect whether a passenger is present in the downgoing area, and when the presence of a passenger is detected in the downgoing area, the controller generates a downgoing signal and assigns a car to move to the call floor while informing the passenger that the call is successful.

[0007] Advantageously, the controller generates the upgoing signal when the first stereoscopic sensor detects the presence of a passenger in the upgoing area for a first predetermined time, and generates the downgoing signal when the first stereoscopic sensor detects the presence of a passenger in the downgoing area for a second predetermined time.

[0008] Advantageously, further comprising a second stereoscopic sensor arranged in a car of the elevator system and communicatively connected to the controller,

[0009] The first stereoscopic sensor is further configured to detect a passenger volume of at least one passenger located in the upgoing area and a passenger volume of at least one passenger located in the downgoing area,

[0010] The second stereoscopic sensor is configured to detect a free volume in the assigned car, and the controller is configured to: compare the passenger volume of at least one passenger in the upgoing area with the free volume in the assigned car, and when the passenger volume of at least one passenger in the upgoing area is less than the free volume, control the assigned car to run to the call floor; compare the passenger volume of at least one passenger in the downgoing area with the free volume in the assigned car, and when the passenger volume of at least one passenger in the downgoing area is less than the free volume, control the assigned car to run to the call floor.

[0011] Advantageously, after the controller generates the upgoing signal and assigns a car to move to the called floor, the first stereoscopic sensor is configured to detect whether a passenger continuously exists in the upgoing area, when it is detected that a passenger continuously exists in the upgoing area, the controller controls the assigned car to run to the called floor; when it is detected that a passenger does not exist in the upgoing area, the controller stops the assigned car from running to the called floor; after the controller generates the downgoing signal and assigns a car to move to the called floor, the first stereoscopic sensor is configured to detect whether a passenger continuously exists in the downgoing area, when it is detected that a passenger continuously exists in the downgoing area, the controller controls the assigned car to run to the called floor; when it is detected that a passenger does not exist in the downgoing area, the controller stops the assigned car from running to the called floor.

[0012] Advantageously, at the moment when the first stereoscopic sensor detects that a passenger does not exist in the upgoing area, if the number of floors that the assigned car stops at to reach the called floor is less than a predetermined number, the controller continues to control the assigned car to stop at the called floor; if the number of floors that the assigned car stops at to reach the called floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping at the called floor, wherein at the moment when the first stereoscopic sensor detects that a passenger does not exist in the downgoing area, if the number of floors that the assigned car stops at to reach the called floor is less than a predetermined number, the controller continues to control the assigned car to stop at the called floor; if the number of floors that the assigned car stops at to reach the called floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping at the called floor.

[0013] Advantageously, the visualization area generator is a projector that projects the visualization area on the floor of the floor, the upgoing area of the visualization area has a visualization upgoing boundary and a visualization sign indicating upgoing, the downgoing area of the visualization area has a visualization downgoing boundary and a visualization sign indicating downgoing.

[0014] Advantageously, wherein when the controller generates the upgoing signal, the controller controls at least a portion of the upgoing area of the visualization area to display a first predetermined color to inform the passenger that the call is successful, wherein when the controller generates the downgoing signal, the controller controls at least a portion of the downgoing area of the visualization area to display a second predetermined color to inform the passenger that the call is successful.

[0015] Advantageously, the first predetermined color is the same as the second predetermined color.

[0016] Advantageously, the controller is configured to cancel the assigned car when the passenger volume of at least one passenger in the upgoing area is greater than the empty volume, while informing the passenger that the call fails, and cancel the assigned car when the passenger volume of at least one passenger in the downgoing area is greater than the empty volume, while informing the passenger that the call fails.

[0017] Advantageously, the visualization area further comprises an intermediate area located between the up area and the down area, the intermediate area having a third predetermined color to remind passengers to avoid stepping into the intermediate area.

[0018] Advantageously, the first stereo sensor and the second stereo sensor are binocular RGB stereo sensors.

[0019] In another aspect, the present application provides an elevator call device for an elevator system, comprising: a controller; a stereo sensor disposed at a call floor of the elevator system and communicatively connected to the controller; a visualization area generator communicatively connected to the controller and capable of generating a visualization area on a floor of the call floor such that the visualization area is located within a sensing area of the stereo sensor, the visualization area comprising a floor call area, wherein the floor call area is visually displayed to a user in a first state showing a predetermined destination floor, wherein the stereo sensor is configured to detect whether a passenger is present within the floor call area, and when the presence of the passenger is detected within the floor call area, the controller generates a call signal and allocates a car to move towards the call floor while informing the passenger that the call to the predetermined destination floor is successful.

[0020] Advantageously, the controller generates the call signal when the stereo sensor detects the presence of the passenger within the floor call area for a predetermined time.

[0021] Advantageously, after the controller generates the call signal and allocates the car to move towards the call floor, the controller is configured to control the visualization area generator to change the floor call area from the first state to a second state showing that the call is successful.

[0022] Advantageously, after the allocated car arrives at the call floor, the controller controls the visualization area generator to change the floor call area to a third state showing that the car has arrived at the call floor.

[0023] Advantageously, in the case that a predetermined elevator shaft is unavailable, the floor call area at a position corresponding to the predetermined elevator shaft is switched to a fourth state showing that the predetermined elevator shaft is unavailable.

[0024] Advantageously, after the controller generates the call signal and allocates the car to move towards the call floor, the stereo sensor is configured to detect whether the passenger continuously exists within the floor call area, and when the continuous presence of the passenger within the floor call area is detected, the controller controls the allocated car to run to the call floor; and when the passenger is not detected within the floor call area, the controller stops the allocated car from running to the call floor.

[0025] Advantageously, at the moment when the stereoscopic sensor detects that there is no passenger in the floor call area, if the number of floors on which the assigned car stops to reach the called floor is less than a predetermined number, the controller continues to control the assigned car to stop to the called floor; if the number of floors on which the assigned car stops to reach the called floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping to the called floor.

[0026] Advantageously, the visualization area generator is a projector that projects the floor call area on the floor.

[0027] Advantageously, the stereoscopic sensor and the other stereoscopic sensor are binocular RGB stereoscopic sensors.

[0028] Advantageously, the visualization area further comprises an upgoing area and / or a downgoing area, wherein the stereoscopic sensor is configured to detect whether there is a passenger in the upgoing area, and when the presence of a passenger in the upgoing area is detected, the controller generates an upgoing signal and assigns a car to move to the called floor while informing the passenger that the call is successful; the stereoscopic sensor is further configured to detect whether there is a passenger in the downgoing area, and when the presence of a passenger in the downgoing area is detected, the controller generates a downgoing signal and assigns a car to move to the called floor while informing the passenger that the call is successful.

[0029] The present application also provides an elevator system comprising the elevator call device as described above. BRIEF DESCRIPTION OF DRAWINGS

[0030] The above and other features and advantages of exemplary embodiments of the present application will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, which are presented by way of illustration and by way of non-limiting example, and in which:

[0031] FIG. 1 shows a schematic diagram of an elevator call device according to the present application.

[0032] FIG. 2 shows a schematic diagram of an elevator call device according to the present application, showing that a passenger is located in a downgoing area.

[0033] FIG. 3 shows a schematic diagram of an elevator call device according to the present application, showing that a passenger is located in an upgoing area.

[0034] FIG. 4 shows a schematic diagram of another example of an elevator call device according to the present application, showing a floor call area.

[0035] FIG. 5 shows switching of a floor call area between a first state, a second state and a third state.

[0036] FIG. 6 shows a schematic diagram of a fourth state of a floor call area. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the technical solutions of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below in combination with the accompanying drawings of the embodiments of the present disclosure. The same reference signs in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present disclosure.

[0038] Compared with the embodiments shown in the drawings, the feasible implementation solutions within the protection scope of the present disclosure can have fewer components, have other components not shown in the drawings, have different components, have differently arranged components or have differently connected components, etc. In addition, two or more components in the drawings can be implemented in a single component, or a single component shown in the drawings can be implemented as a plurality of separate components.

[0039] Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the usual meanings understood by those of ordinary skill in the art to which the present disclosure belongs. The "first", "second" and similar words used in the patent application specification and claims of the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. When the number of components is not specified, the number of components can be one or more; similarly, the words "one", "the", "said" and the like do not necessarily represent a quantity limitation. The words "including" or "containing" and the like mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship of the device in use or the positional relationship shown in the drawings, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] Fig. 1 shows a schematic diagram of an elevator call device according to the present application. The elevator call device comprises a controller (not shown), which can be the controller of the elevator system or a separate controller. A first stereo sensor 1 is arranged at a call floor of the elevator system, preferably above the landing door of the call floor, of course also at any other suitable location, and is communicatively connected to the controller. A visualization area generator 2 is communicatively connected to the controller and is capable of generating a visualization area visible to a passenger on the floor of the call floor, as shown in Fig. 1. The visualization area is located within the sensing area of the first stereo sensor such that the field of view of the first stereo sensor encompasses the visualization area. The visualization area comprises an up area 21 and / or a down area 22, in particular, only an up area at the lobby of the building and only a down area at the top floor of the building, and both an up area and a down area at intermediate floors.

[0041] In the example shown in the figures, the visualization area generator 2 is in the form of a projector projecting a visualization area visible to a passenger on the floor of the call floor, the up area 21 of the visualization area having a visualization up boundary 211 and a visualization sign 212 indicating up, and the down area 22 of the visualization area having a visualization down boundary 221 and a visualization sign 222 indicating down. In the example of the figures, the visualization up boundary 211 and the visualization down boundary 221 have a rectangular form, but this is not limiting and can have any suitable form. In the example of the figures, the visualization signs are in the form of text, but this is not limiting and can have any suitable form, such as arrows, etc.

[0042] As shown in Fig. 2, the first stereo sensor 1 is configured to detect the presence of a passenger within the up area, and upon detecting the presence of a passenger within the up area, the first stereo sensor 1 transmits the detection result to the controller, which generates an up signal and assigns a car to move to the call floor, while informing the passenger that the call was successful. Similarly, as shown in Fig. 3, the first stereo sensor is also configured to detect the presence of a passenger within the down area, and upon detecting the presence of a passenger within the down area, the first stereo sensor 1 transmits the detection result to the controller, which generates a down signal and assigns a car to move to the call floor, while informing the passenger that the call was successful.

[0043] As a means of informing the passenger of the success of the call, in the example of the projector, different colors can be used. For example, in the case where the controller sends an up signal, the controller can control the projector such that at least a portion of the up region of the visualization area displays a first predetermined color to inform the passenger of the success of the call. Similarly, in the case where the controller generates a down signal, the controller controls the projector such that at least a portion of the down region of the visualization area displays a second predetermined color to inform the passenger of the success of the call. The first predetermined color and the second predetermined color can be the same, for example green, or different.

[0044] In addition to the color means described above, other means can also be used, for example the audio device can emit a sound to indicate the success of the call, for example a portion of the visualization area can be made to flash, etc., as long as the passenger can be informed of the success of the call.

[0045] In addition to the projector, the visualization area generator can also be in other forms, for example a screen installed under the floor which is visible to the passenger through a transparent panel and can display the up region and the down region. The screen is communicatively connected to the controller and under the control of the controller informs the passenger of whether the call is successful.

[0046] The examples of the visualization area generator are not limited to this and other forms can also be used as long as a visualization area visible to the passenger can be generated.

[0047] In order to avoid the passenger accidentally stepping into the visualization area and generating a call signal, the first stereoscopic sensor is configured to, when the passenger is detected to be present in the up region for a first predetermined time, the controller generates an up signal; and when the passenger is detected to be present in the down region for a second predetermined time, the controller generates a down signal. The first predetermined time and the second predetermined time can be the same or different.

[0048] The elevator call device further comprises a second stereoscopic sensor 3 disposed in the car of the elevator system and communicatively connected to the controller.

[0049] The first stereoscopic sensor 1 is further configured to detect the passenger volume of at least one passenger located in the up region 21 and the passenger volume of at least one passenger located in the down region. In this application, the "passenger volume" refers to the volume of the passenger himself and the volume of the luggage carried by the passenger (if any), but does not refer to the volume of the luggage alone. That is to say, when the passenger places the luggage in the visualization area, the controller will not generate a call signal. In this way, false calls caused by the passenger occasionally placing luggage in the visualization area can be avoided.

[0050] The second stereoscopic sensor 3 is configured to detect the free volume in the assigned car and send the free volume to the controller. The controller is configured to compare the passenger volume of the at least one passenger in the up-going zone with the free volume in the assigned car, and control the assigned car to run to the call floor when the passenger volume of the at least one passenger in the up-going zone is less than the free volume. Similarly, the controller is configured to compare the passenger volume of the at least one passenger in the down-going zone with the free volume in the assigned car, and control the assigned car to run to the call floor when the passenger volume of the at least one passenger in the down-going zone is less than the free volume.

[0051] When the passenger volume of the at least one passenger in the up-going zone or the down-going zone is greater than the free volume, the controller cancels the assigned car and notifies the passenger of the call failure. The way to notify the passenger of the call failure is similar to the way to notify the passenger of the call success, which can be achieved by color change in the visualization area, sound emitted by the audio device, light flashing, etc.

[0052] There is also a case that after the passenger stays in the visualization area for a period of time and the call is successful, the passenger can no longer continue to take the elevator for some reason. In order to match this case, after the controller generates the up-going signal and assigns the car to move to the call floor, the first stereoscopic sensor 1 is configured to detect whether the passenger continues to exist in the up-going zone, and when it is detected that the passenger continues to exist in the up-going zone, the controller controls the assigned car to run to the call floor; when it is detected that the passenger does not exist in the up-going zone, the controller stops the assigned car from running to the call floor. Similarly, after the controller generates the down-going signal and assigns the car to move to the call floor, the first stereoscopic sensor is configured to detect whether the passenger continues to exist in the down-going zone, and when it is detected that the passenger continues to exist in the down-going zone, the controller controls the assigned car to run to the call floor; when it is detected that the passenger does not exist in the down-going zone, the controller stops the assigned car from running to the call floor.

[0053] In particular, at the moment when the first stereoscopic sensor detects that the passenger does not exist in the up-going zone, if the number of stops of the assigned car required to reach the call floor is less than a predetermined number (for example, 2 times), the controller continues to control the assigned car to stop at the call floor; if the number of stops of the assigned car required to reach the call floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue to run without stopping at the call floor. This is to avoid causing an uncomfortable elevator experience for the passengers in the assigned car, because in the case that the assigned car is less than 2 floors away from the call floor, the assigned car has already started to decelerate, and if the stop at the call floor is cancelled at this time, the assigned car will suddenly accelerate, thereby causing discomfort to the passengers.

[0054] Similarly, at the time when the first stereo sensor detects that there is no passenger in the down-going area, if the number of floors on which the assigned car stops to the call floor is less than the predetermined number, the controller continues to control the assigned car to stop to the call floor; if the number of floors on which the assigned car stops to the call floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping to the call floor.

[0055] The visualized area further comprises an interval area 23 between the up-going area 21 and the down-going area 22, the interval area having a third predetermined color to remind passengers to avoid stepping into the interval area. Of course, the interval area 23 can also have other forms as long as it can remind passengers not to step into the interval area.

[0056] For example, the first stereo sensor 1 and the second stereo sensor 2 are binocular RGB stereo sensors. However, the first stereo sensor and the second stereo sensor can also be other forms of stereo sensors.

[0057] Fig. 4 and Fig. 5 show an elevator call device according to another example, which, in addition to the above-mentioned up-going area and down-going area, further comprises a floor call area 23, which is also generated by the first stereo sensor. However, the visualized area generator can also only generate the floor call area without generating the above-mentioned up-going area and down-going area.

[0058] As shown in Fig. 4, the floor call area 23 is in a first state, which visually displays to the user the destination floor, for example, displays the text "to floor X". Only a single floor call area 23 is shown in Fig. 4, but it should be understood that there can also be multiple floor call areas, the number of which can be the same as the number of floors in the building. It should also be understood that the "destination floor" used in the present application not only represents a single floor, but can also represent a collection of multiple floors, in which case, for example, the text "to floor A-B" can be displayed.

[0059] In this case, the first stereo sensor is configured to detect whether there is a passenger in the floor call area 23, and when the presence of a passenger is detected in the floor call area, the controller generates a call signal and assigns a car to move to the call floor, while informing the passenger that the call to the destination floor is successful. Such a means of notification can be in the form of sound, text, etc. For example, the controller can control the visualized area generator to change the floor call area 23 from the first state to a second state, which displays that the call is successful, for example, displays the text "call successful".

[0060] Similar to the above description for the up-going area and the down-going area, when the first stereoscopic sensor detects the presence of the passenger in the floor call area 23 for a predetermined time, the controller generates a call signal.

[0061] After the assigned car reaches the call floor, the controller can control the visualization area generator to change the floor call area to a third state that shows that the car has reached the call floor, for example, shows the text of "car arrival".

[0062] In addition, in the case where the predetermined elevator shaft is unavailable, the floor call area 23 at the position corresponding to the predetermined elevator shaft can be switched to a fourth state that shows that the predetermined elevator shaft is unavailable, for example, shows the text of "unavailable", under the control of the controller.

[0063] Similarly, similar to the above description for the up-going area and the down-going area, after the controller generates a call signal and assigns a car to move to the call floor, the first stereoscopic sensor is configured to detect whether the passenger continuously exists in the floor call area, and when it is detected that the passenger continuously exists in the floor call area, the controller controls the assigned car to run to the call floor; when it is detected that the passenger does not exist in the floor call area, the controller stops the assigned car from running to the call floor. At the moment when the first stereoscopic sensor detects that the passenger does not exist in the floor call area, if the number of floors that the assigned car stops at to reach the call floor is less than a predetermined number, the controller continues to control the assigned car to stop at the call floor; if the number of floors that the assigned car stops at to reach the call floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue to run without stopping at the call floor.

[0064] In the above examples, the first stereoscopic sensor, the second stereoscopic sensor, and the visualization area generator can be directly communicatively connected to the controller. Alternatively, the first stereoscopic sensor, the second stereoscopic sensor, and the visualization area generator can also be indirectly communicatively connected to the controller, for example, communicatively connected to the controller via an edge device, so as to reduce the information that the controller needs to process.

[0065] Through the elevator call device of the present application, the passenger can be informed in time how to call and whether the call is successful, and at the same time, false calling can be avoided.

[0066] Although the present application has been described in the specification and illustrated in the drawings with reference to various embodiments, it is understood that the above-described embodiments are merely exemplary and certain technical features of the embodiments can not be essential for solving the technical problems, so that these technical features can be omitted or replaced without affecting the solution to the technical problems or the formation of the technical solutions; and, the features, elements and / or functions of one embodiment can be combined with the features, elements and / or functions of one or more other embodiments as appropriate, unless such combination is not feasible or is clearly not intended.

Claims

1. An elevator call device for an elevator system, comprising: a controller; a stereo sensor arranged at a call floor of the elevator system and communicatively connected to the controller; a visualization area generator communicatively connected to the controller and capable of generating a visualization area on a floor of the call floor such that the visualization area is located within a sensing area of the stereo sensor, the visualization area comprising a floor call area, wherein the floor call area is visually displayed to a user in a first state showing a predetermined destination floor, wherein the stereo sensor is configured to detect a presence of a passenger within the floor call area, and upon detecting the presence of the passenger within the floor call area, the controller generates a call signal and allocates a car to move to the call floor while informing the passenger that the call to the predetermined destination floor is successful.

2. The elevator call device of claim 1, wherein, The controller generates the call signal upon the stereo sensor detecting the presence of the passenger within the floor call area for a predetermined time.

3. The elevator call device of claim 1, wherein, Upon the controller generating the call signal and allocating the car to move to the call floor, the controller is configured to control the visualization area generator to change the floor call area from the first state to a second state showing that the call is successful.

4. The elevator call device of claim 1, wherein, Upon the allocated car reaching the call floor, the controller controls the visualization area generator to change the floor call area to a third state showing that the car has reached the call floor.

5. The elevator call device of claim 1, wherein, Upon a predetermined elevator shaft being unavailable, the floor call area at a location corresponding to the predetermined elevator shaft is switched to a fourth state showing that the predetermined elevator shaft is unavailable.

6. The elevator call device of claim 1, wherein, Upon the controller generating the call signal and allocating the car to move to the call floor, the stereo sensor is configured to detect a continued presence of the passenger within the floor call area, and upon detecting the continued presence of the passenger within the floor call area, the controller controls the allocated car to run to the call floor; and upon detecting an absence of the passenger within the floor call area, the controller stops the allocated car from running to the call floor.

7. The elevator call device of claim 6, wherein, Upon the stereo sensor detecting an absence of the passenger within the floor call area, if a number of floors the allocated car stops at to reach the call floor is less than a predetermined number, the controller continues to control the allocated car to stop at the call floor; and if the number of floors the allocated car stops at to reach the call floor is greater than or equal to the predetermined number, the controller controls the allocated car to continue running without stopping at the call floor.

8. The elevator call device of any of claims 1 to 7, wherein, The visualization area generator is a projector that projects the floor call area on the floor of the call floor, wherein the stereo sensor and the other stereo sensor are binocular RGB stereo sensors.

9. The elevator call device of any of claims 1 to 7, wherein, The visualization area further comprises an up area and / or a down area, wherein the stereo sensor is configured to detect a presence of a passenger within the up area, and upon detecting the presence of the passenger within the up area, the controller generates an up signal and allocates a car to move to the call floor while informing the passenger that the call is successful; the stereo sensor is further configured to detect a presence of a passenger within the down area, and upon detecting the presence of the passenger within the down area, the controller generates a down signal and allocates a car to move to the call floor while informing the passenger that the call is successful.

10. An elevator call device for an elevator system, comprising: a controller; a first volumetric sensor disposed at a call floor of the elevator system and communicatively connected to the controller; a visualization area generator communicatively connected to the controller and capable of generating a visualization area on a floor of the call floor such that the visualization area is within a sensing area of the first volumetric sensor, the visualization area comprising an up-region and / or a down-region, wherein the first volumetric sensor is configured to detect the presence of a passenger within the up-region, and upon detecting the presence of a passenger within the up-region, the controller generates an up-signal and assigns a car to move to the call floor while notifying the passenger of a successful call; the first volumetric sensor is further configured to detect the presence of a passenger within the down-region, and upon detecting the presence of a passenger within the down-region, the controller generates a down-signal and assigns a car to move to the call floor while notifying the passenger of a successful call.

11. The elevator call device of claim 1, wherein, the controller generates the up-signal upon the first volumetric sensor detecting the presence of a passenger within the up-region for a first predetermined time; and the controller generates the down-signal upon the first volumetric sensor detecting the presence of a passenger within the down-region for a second predetermined time.

12. The elevator call device of claim 11, further comprising a second volumetric sensor disposed within a car of the elevator system and communicatively connected to the controller, the first volumetric sensor is further configured to detect a passenger volume of at least one passenger located within the up-region and a passenger volume of at least one passenger located within the down-region, the second volumetric sensor is configured to detect a free volume within the assigned car, the controller is configured to: compare the passenger volume of the at least one passenger within the up-region to the free volume within the assigned car, and when the passenger volume of the at least one passenger within the up-region is less than the free volume, control the assigned car to travel to the call floor; compare the passenger volume of the at least one passenger within the down-region to the free volume within the assigned car, and when the passenger volume of the at least one passenger within the down-region is less than the free volume, control the assigned car to travel to the call floor.

13. The elevator call device of claim 10, wherein, after the controller generates the up-signal and assigns a car to move to the call floor, the first volumetric sensor is configured to detect whether a passenger continues to be present within the up-region, and when the presence of a passenger within the up-region is detected to continue, the controller controls the assigned car to travel to the call floor; and when the presence of a passenger within the up-region is detected to not continue, the controller stops the assigned car from traveling to the call floor; after the controller generates the down-signal and assigns a car to move to the call floor, the first volumetric sensor is configured to detect whether a passenger continues to be present within the down-region, and when the presence of a passenger within the down-region is detected to continue, the controller controls the assigned car to travel to the call floor; and when the presence of a passenger within the down-region is detected to not continue, the controller stops the assigned car from traveling to the call floor.

14. The elevator call device of claim 13, wherein, at a time when the first stereoscopic sensor detects that there is no passenger in the up-going area, if the number of floors on which the assigned car stops to the called floor is less than a predetermined number, the controller continues to control the assigned car to stop to the called floor; if the number of floors on which the assigned car stops to the called floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping to the called floor, at a time when the first stereoscopic sensor detects that there is no passenger in the up-going area, if the number of floors on which the assigned car stops to the called floor is less than a predetermined number, the controller continues to control the assigned car to stop to the called floor; if the number of floors on which the assigned car stops to the called floor is greater than or equal to the predetermined number, the controller controls the assigned car to continue running without stopping to the called floor.

15. The elevator call device of any of claims 10 to 14, wherein, The visualization area generator is a projector that projects the visualization area on the floor surface, the up-going area of the visualization area has a visualization up-going boundary and a visualization sign indicating up-going, the down-going area of the visualization area has a visualization down-going boundary and a visualization sign indicating down-going.

16. The elevator call device of claim 15, wherein at a time when the controller generates the up-going signal, the controller controls at least a portion of the up-going area of the visualization area to display a first predetermined color to inform the passenger of the success of the call, at a time when the controller generates the down-going signal, the controller controls at least a portion of the down-going area of the visualization area to display a second predetermined color to inform the passenger of the success of the call.

17. The elevator call device of claim 16, wherein, The first predetermined color is the same as the second predetermined color.

18. The elevator call device of claim 12, wherein, The controller is configured to: cancel the assigned car when the passenger volume of at least one passenger in the up-going area is greater than the empty volume, while informing the passenger of the failure of the call, cancel the assigned car when the passenger volume of at least one passenger in the down-going area is greater than the empty volume, while informing the passenger of the failure of the call.

19. The elevator call device of claim 15, wherein, The visualization area further comprises an interval area between the up-going area and the down-going area, the interval area has a third predetermined color to remind the passenger to avoid stepping into the interval area.

20. The elevator call device of any of claims 10 to 14, wherein, The first stereoscopic sensor and the second stereoscopic sensor are binocular RGB stereoscopic sensors.

21. An elevator system comprising the elevator call device of any one of claims 1 to 9 or the elevator call device of any one of claims 10 to 20.

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