CN116873678A - Elevator calling system - Google Patents

Abstract

The application discloses an elevator calling system, which comprises an elevator car beacon and a mobile terminal, wherein the elevator car beacon is arranged on an elevator car and is used for broadcasting wireless signals in a wireless mode; the mobile terminal is provided with application software for registering call signals in advance, and the application software is started after the wireless signals are received; the coverage area of the wireless signal of the car beacon is a circle with the car beacon as a circle center and the radius R, and the radius R enables the mobile terminal of the waiting elevator passenger to receive the wireless signal at the entering moment of not later than the elevator car entering the deceleration zone corresponding to the floor where the waiting elevator passenger is located; the mobile terminal generates and transmits a call signal to the elevator control system. The application can greatly reduce the number of beacons and the cost and the complexity of the system because only beacons are arranged in the car.

Description

Elevator calling system

Technical Field

The application relates to the technical field of elevators, in particular to an elevator calling system.

Background

Currently, in order to facilitate passengers to register call signals, more and more elevators provide passengers with call modes based on mobile terminals such as mobile phones. In this manner, the mobile terminal receives call information (e.g., departure floor and destination floor) entered by the passenger or pre-stored in the mobile terminal and transmits it to the elevator control system. The following documents:

an automatic call registration system for an elevator, which is provided in document 1 (cn201980092071.x) and can suppress call registration that is not intended by a user, is provided with: a layer station side beacon device provided in a layer station; a sensor that detects an object entering and exiting the car; and a control device that registers a hall call corresponding to a request automatically transmitted by the portable terminal when the portable terminal receives a radio wave from the hall-side beacon device and automatically transmits a request for a call preset in a call registration system application, registers a car call corresponding to the request automatically transmitted by the portable terminal when the sensor detects an object after the car arrives at a hall corresponding to the hall call and opens the door, and does not register a car call corresponding to the request automatically transmitted by the portable terminal when the sensor does not detect an object after the car arrives at a hall corresponding to the hall call and opens the door.

Document 2 (CN 202011349620.8) provides an elevator system in which, in call registration using a terminal device by a user, erroneous registration due to a wireless signal is prevented and call registration is accurately performed. The elevator system is provided with: an elevator control device for controlling the operation of the car; and a plurality of first wireless signal devices provided in each hall for each floor, for starting application software for call registration installed in advance in the mobile terminal. The mobile terminal is provided with: a storage unit for storing boarding information including a boarding floor and a destination floor of a user; a radio wave intensity measuring unit for measuring the radio wave intensity of the radio signal; and a control unit that, when a hall call registration mode is set by the activation of the application software, selects a first wireless signal device having the highest radio wave intensity among the first wireless signal devices as a connection target, and performs hall call registration processing based on the elevator riding information.

In the prior art, in order to realize call registration by a terminal device (mobile terminal or portable terminal), a wireless signal device called a beacon is required to be arranged on each landing of a building where an elevator is located, and when a passenger arrives at a hall of any floor with a mobile terminal in which application software for call registration is pre-installed, a wireless signal transmitted by the wireless signal device activates the application software to call a passenger car, and the destination floor of the user is registered in the passenger car. Accordingly, the prior art has a disadvantage in that a wireless signal device called a "beacon" needs to be provided at each of the layer stations.

Disclosure of Invention

In the summary section, a series of simplified form concepts are introduced that are all prior art simplifications in the section, which are described in further detail in the detailed description section. The summary of the application is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

In order to solve the technical problems, the application provides an elevator calling system, which comprises an elevator car beacon and a mobile terminal, wherein the elevator car beacon is arranged on an elevator car and is used for broadcasting wireless signals in a wireless mode;

the mobile terminal is provided with application software for registering call signals in advance, and the application software is started after the wireless signals are received;

the coverage area of the wireless signal of the car beacon is a circle with the car beacon as a circle center and the radius R, and the radius R enables the mobile terminal of the waiting elevator passenger to receive the wireless signal at the entering moment of not later than the elevator car entering the deceleration zone corresponding to the floor where the waiting elevator passenger is located;

the mobile terminal generates and transmits a call signal to the elevator control system.

Preferably, the square of the radius R is equal to or more than the sum of squares of the deceleration distance and the maximum waiting distance; the deceleration distance is the distance between the deceleration point and the departure floor, and the maximum elevator waiting distance is the maximum distance between the position of the elevator door and the elevator door when the elevator waiting passengers enter the elevator waiting hall.

Preferably, the wireless signal comprises the direction of travel and the current position of the elevator car; the mobile terminal firstly determines a departure floor and a destination floor of a waiting passenger by utilizing a pre-stored floor pair according to the current floor of the mobile terminal; and judging whether the waiting passengers can get into the elevator car during the period that the mobile terminal receives the wireless signal broadcast by the car beacon for the first time according to the running direction, the current position and the departure floor and the destination floor of the waiting passengers.

Preferably, when the following conditions are met, the judgment result of the mobile terminal is yes, otherwise, the judgment result is no: the running direction of the elevator is consistent with the expected elevator taking direction of the elevator waiting passengers; condition 2, the elevator car is currently located outside the deceleration zone; condition 3, departure floor, is located in front of the direction of travel of the elevator car.

Preferably, when the determination result is yes, if the mobile terminal shields a wireless signal from a car beacon after the mobile terminal generates and transmits the call signal for the first time; and when the mobile terminal does not receive the wireless signal of the car beacon, the shielding is canceled.

Preferably, when the determination result is no, after the mobile terminal generates and transmits the call signal for the first time, the mobile terminal continuously monitors the wireless signal, shields the wireless signal from the car beacon during the period of the current change from the received wireless signal state to the non-received state, from the non-received state to the received state again, and from the received state to the non-received state again, and then removes the shielding.

Preferably, the mobile terminal shields a wireless signal from a car beacon during a period when the position to the mobile terminal becomes a destination floor after the mobile terminal generates and transmits the call signal for the first time; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.

Preferably, the mobile terminal identifies which stage of the elevator taking stage the elevator waiting passenger is in according to the distance between the mobile terminal and the car beacon and the position of the elevator car, and decides whether to shield the wireless signal according to the identification result, wherein the elevator taking stage comprises the elevator waiting stage, the car entering stage, the car moving together with the car and the car leaving stage.

Preferably, when the floor where the mobile terminal is located is unchanged and the position of the elevator car is changed, or the floor where the mobile terminal is located is unchanged and the position of the elevator car and the second distance are both unchanged, the passenger is in a waiting stage; when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually reduced, the passenger is in a car entering stage; when the elevator car position changes but the second distance remains unchanged, the passenger is in a phase of moving with the car; when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually increased, the passenger is in a car leaving stage, and the second distance is the distance between the mobile terminal and a car beacon.

Preferably, after the mobile terminal first generates and transmits the call signal, the screening state is maintained until the passenger is identified as leaving the car and the second distance exceeds a threshold value.

Preferably, there are a plurality of cars in one lobby, each car being provided with a car beacon; after the mobile terminal receives the wireless signals of the second car beacon, the mobile terminal shields the wireless signals from all car beacons; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.

The technical effects are as follows:

because only the beacons are arranged in the car, the number of the beacons can be greatly reduced, and the cost and the system complexity are reduced.

Drawings

The accompanying drawings are intended to illustrate the general features of methods, structures and/or materials used in accordance with certain exemplary embodiments of the application, and supplement the description in this specification. The drawings of the present application, however, are schematic illustrations that are not to scale and, thus, may not be able to accurately reflect the precise structural or performance characteristics of any given embodiment, the present application should not be construed as limiting or restricting the scope of the numerical values or attributes encompassed by the exemplary embodiments according to the present application. The application is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic diagram of an elevator call system of the present application.

Detailed Description

Other advantages and technical effects of the present application will become more fully apparent to those skilled in the art from the following disclosure, which is a detailed description of the present application given by way of specific examples. The application may be practiced or carried out in different embodiments, and details in this description may be applied from different points of view, without departing from the general inventive concept. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. The following exemplary embodiments of the present application may be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. It should be appreciated that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical solution of these exemplary embodiments to those skilled in the art.

Example 1

The embodiment takes a single ladder scene as an example to describe the technical scheme of the application.

As shown in fig. 1, in the present embodiment, the elevator call registration system includes a car beacon (i.e., wireless signaling device) provided on the car and broadcasting wireless signals to the outside in a wireless manner, and a mobile terminal carried by a waiting passenger; the mobile terminal is provided with application software for registering call signals in advance, and the application software is started after the wireless signals are received;

the coverage area of the wireless signal of the car beacon is a circle with the car beacon as a circle center and the radius R, and the radius R enables the mobile terminal of the waiting elevator passenger to receive the wireless signal at the entering moment of not later than the elevator car entering the deceleration zone corresponding to the floor where the waiting elevator passenger is located; the deceleration section is a section obtained by taking a waiting floor as a center, and moving up and down and a deceleration distance. The mobile terminal generates and transmits a call signal to the elevator control system.

The square of the radius R is larger than or equal to the sum of squares of the deceleration distance and the maximum waiting distance; the deceleration distance is the distance between a deceleration point and a departure floor, and can be predetermined in advance according to the rated speed and the rated deceleration of the elevator; the maximum waiting distance is the maximum distance between the position of the waiting passenger entering the waiting hall and the elevator door, and can be obtained according to experience or historical data.

In the prior art, beacons (which are called landing beacons later) are arranged on each landing, and accordingly, the beacons arranged in the elevator car are called as car beacons) because the mobile terminal can receive wireless signals broadcast by the landing beacons at the first time after passengers carry the mobile terminal to enter the elevator waiting hall, so that application software can be started timely, and further, calling signals of the passengers can be generated and registered timely. However, in practice, even if a call signal is registered in time, the control system receives the call signal from the mobile terminal and decides that the call signal will be responded to, but the actual response time is still the stop time at which the elevator is stopped at the departure floor of the passenger (and when the running direction after the start coincides with the desired boarding direction of the passenger, the following defaults refer to this case, and no particular indication or explanation is made).

For example: if the passenger is currently located in the 8 th floor (i.e. the departure floor is the 8 th floor) and the destination floor is the 1 th floor (i.e. the expected landing direction is the descending floor), the mobile terminal generates a registration call signal and sends the registration call signal to the elevator control system, when the elevator is located in the 6 th floor and ascends, the elevator still needs to wait until the elevator operation is in the furthest stopping floor in the ascending direction (possibly the destination floor of the passenger in the elevator car or the generation floor of the landing call signal) reverses the direction, and then the elevator is descended to the 8 th floor, and the elevator can respond to the landing request (i.e. the call signal) of the passenger; also this example, but the elevator control system receives a call signal with the car in floor 12 and down, and the elevator again down to floor 8 responds to the passenger's landing request. This means that the actual response moment of the elevator to the call signal of the passenger is the same, i.e. the riding experience of the passenger (here in terms of waiting time) is not affected, as long as the call signal can be registered before the latest moment at which the elevator car successfully stops at floor 8. In this way, if the mobile terminal can be made to receive the wireless signal before the latest time so as to generate a waiting signal and send the waiting signal to the elevator control system, the same riding experience as the prior art scheme can be achieved with a greatly reduced number of beacons required. This involves two technical problems:

problem 1, how to determine the latest moment at which the elevator car successfully stops at floor 8;

question 2, how to ensure that the mobile terminal is able to receive the radio signal no later than the latest instant.

For problem 1, considering that the elevator is usually operated at the rated speed (and possibly below the rated speed because it has not been accelerated to a constant speed section at the rated speed) before stopping at the building 8, to finally stop at the building 8, it is necessary to determine a deceleration point according to the current speed and the rated deceleration, and plan a deceleration curve from the deceleration point to the building 8, and the elevator control system controls the elevator car to track the deceleration curve so as to be able to finally successfully stop at the building 8. If a call signal is received before the elevator car passes the deceleration point, under control of the control system, the elevator car comes to rest on the waiting signal, in response to the call signal; if the call signal is received after the elevator car has driven past the deceleration point, the elevator car is not stopped at floor 8 and can only respond to the call signal if the elevator car stops at floor 8 again. Therefore, in order for the elevator to be able to respond to the waiting signal at this time, the waiting signal must be sent to the elevator control system before or at the deceleration point (irrespective of the time of signal transmission and information processing of the control system, etc.). Thus, the latest time is the time when the elevator car reaches the deceleration point. The deceleration point furthest from the 8 th floor (i.e., the nominal speed before deceleration) is considered herein, and the distance between the deceleration point and the 8 th floor is referred to as the deceleration distance. Therefore, the deceleration distance can be determined in advance from the rated speed and the rated deceleration of the elevator.

For problem 2, in order to ensure that the mobile terminal can receive the wireless signal no later than the latest time, it is necessary to ensure that the mobile terminal carried by the passenger in the hall can receive the wireless signal broadcast by the car beacon when or before the elevator car reaches the deceleration point, so as to start the application software, and the elevator waiting signal is generated by the mobile terminal and sent to the elevator control system. Thus, the square of the coverage radius R of the wireless signal broadcast by the car beacon needs to be equal to or greater than the sum of the squares of the deceleration distance and the maximum waiting distance. The maximum waiting distance is the maximum distance between the position of the waiting passenger entering the waiting hall and the elevator door, and can be obtained according to experience or historical data.

Thus, when a passenger carries the mobile terminal into the hall and into the hall area (each position therein is not more than the maximum hall distance), the following situations can be classified:

in case 1, when a passenger enters a waiting area, the elevator car does not reach a deceleration point and is far away from the deceleration point, and at this time, the elevator car is far away from the building 8, so that the wireless signal of the car beacon is limited by the broadcasting distance and cannot cover the waiting area, and therefore, the mobile terminal cannot receive the wireless signal, and therefore, application software cannot be started and the waiting signal registration is performed.

In case 2, as the elevator car continues to move toward the building 8 (and the deceleration point) over time, as the distance between the elevator car and the building 8 decreases (and the distance between the car beacon and the mobile terminal decreases accordingly), at a certain moment, the distance between the car beacon and the mobile terminal is smaller than the actual broadcast distance of the car beacon, the wireless signal broadcast by the car beacon arrives at the elevator waiting area, i.e., the mobile terminal located in the elevator waiting area enters the broadcast coverage area of the car beacon, so the mobile terminal receives the wireless signal broadcast by the car beacon, and the application software is started to generate a call signal and send the call signal to the elevator control system. After receiving the waiting signal, the elevator control system adds the building 8 to the floor to be stopped and controls the elevator car to start decelerating at the deceleration point until the elevator car finally stops at the building 8, and passengers can enter the car to receive the conveying service from the elevator.

And 3, when a passenger arrives at the waiting area, the elevator car has driven to a deceleration point (but does not drive 8 floors), at the moment, the distance between the car beacon and the mobile terminal is smaller than the actual broadcasting distance of the car beacon, the mobile terminal receives a wireless signal broadcast by the car beacon, and the wireless signal is started by application software, generates a call signal and then sends the call signal to an elevator control system. However, since the elevator car has already driven past the deceleration point, the elevator can not decelerate and stop at the 8 th floor, so the elevator control system judges that the elevator is not responding to the waiting signal when passing through the 8 th floor, the waiting signal is added into the waiting signal list to be responded and controls the elevator to respond to the calling signal subsequently.

And 4, when a passenger arrives at the waiting area, the elevator car has driven through the 8 th floor and is moving away from the 8 th floor, but at the moment, the distance between the car beacon and the mobile terminal is smaller than the actual broadcasting distance of the car beacon, the mobile terminal receives a wireless signal broadcast by the car beacon, and the wireless signal is started by application software, generates a call signal and then sends the call signal to an elevator control system. But since the elevator car is currently moving away from floor 8, the elevator control system adds the waiting signal to the list of waiting signals to be responded to and controls the elevator to subsequently respond to the call signal.

As a result of the above analysis, the square of the radius R of the wireless signal coverage area of the car beacon is equal to or greater than the sum of the squares of the deceleration distance and the maximum waiting distance, which ensures that even if the car beacon is only arranged in the car, passengers can still get timely response of the elevator car (refer to stopping at the departure floor so that passengers can take the elevator in time) when the elevator car arrives at the waiting area before driving past the deceleration point, and the same passenger experience (mainly in waiting time) as the prior art is obtained.

The prior art scheme has the defects that the beacon is required to be configured on each floor, so that the whole system is high in cost, high in structural complexity, time-consuming and labor-consuming in installation and construction, and the decoration of an elevator hall (particularly important for later reconstruction projects) can be influenced, and the like. The most straightforward and conceivable solution to this problem is to try to make multiple floors share one beacon (e.g. 2 adjacent landing share one beacon), but when there are very many building floors (e.g. there may be tens or even hundreds of floors for super high-rise buildings), it is just a link but not fundamentally overcoming the drawbacks of the prior art solutions. The application is a conventional thinking framework for seeking to reduce the number of layer station beacons and the fixed setting of the beacons, and the technical scheme of the application is obtained on the basis of multi-step reasoning:

the reasoning step 1, by deeply analyzing the characteristics of a calling mode based on the mobile terminal and the beacon and a response mode of an elevator operation control system to a calling signal in the process, the actual response time of the calling signal from the mobile terminal is found to be the stopping time of the elevator stopping at the departure floor of the passenger;

the reasoning step 2, further analysis finds that as long as a call signal is received before the elevator reaches the corresponding deceleration point, the response of the elevator to the call signal is the same;

the reasoning step 3, further analysis and discovery, only need to make the mobile terminal generate a call signal before the elevator car reaches the deceleration point of the passenger departure floor and send the call signal to the elevator control system;

the reasoning step 4, further analysis shows that for a given elevator, the distance between the deceleration point corresponding to each floor and the floor layer (i.e. the deceleration distance) is fixed;

the reasoning step 5, further analysis, only the mobile terminal can generate a call signal before the elevator car reaches the deceleration point of the departure floor of the passenger and send the call signal to the elevator control system, so that the same performance as that of the landing beacons of all floors can be realized;

the reasoning step 6, further analysis shows that the goal of the reasoning step 5 can be realized as long as the elevator car is provided with a car beacon and the mobile terminal receives the wireless signal from the car beacon before the elevator car reaches the deceleration point;

the reasoning step 7 can enable the mobile terminal to receive the wireless signal from the car beacon before the elevator car reaches the deceleration point (the deceleration distance is fixed as known from the reasoning step 5) as long as the coverage radius of the wireless signal of the car beacon exceeds the deceleration distance (the distance between the passenger and the elevator room is ignored).

Therefore, the technical scheme of the application jumps out of the inherent thought frames of the prior art and the conventional solution, is a brand new elevator call system technical scheme based on the mobile terminal, can comprehensively overcome a plurality of defects existing in the prior art by only setting the car beacon and properly setting the coverage radius of the wireless signal of the car beacon in the elevator, and has outstanding beneficial technical effects.

Example 2

Embodiment 1 has a problem in that the mobile terminal repeatedly registers a waiting signal after continuously or again receiving a wireless signal broadcast by a car beacon because the mobile terminal is configured to start application software after receiving the wireless signal broadcast by the car beacon. The present embodiment further adds technical features to solve the problem of repeated registration of the waiting signals on the basis of embodiment 1.

The wireless signal comprises the running direction and the current position of the elevator car;

the mobile terminal firstly determines a departure floor and a destination floor of a waiting passenger by utilizing a pre-stored floor pair according to the current floor of the mobile terminal; and judging whether the waiting passengers can get into the elevator car during the period that the mobile terminal receives the wireless signal broadcast by the car beacon for the first time according to the running direction, the current position and the departure floor and the destination floor of the waiting passengers. The floor pairs consist of the possible departure floor and the possible destination floor of the Hou passenger.

When the following conditions are met, the judgment result of the mobile terminal is yes (namely, the mobile terminal can be used for riding in an elevator car during the period that the mobile terminal receives the wireless signal broadcast by the car beacon for the first time), otherwise, the judgment result is no:

the running direction of the elevator is consistent with the expected elevator taking direction of the elevator waiting passengers; the expected elevator taking direction is determined according to the departure floor and the destination floor;

condition 2, the elevator car is currently located outside the deceleration zone;

condition 3, departure floor, is located in front of the direction of travel of the elevator car.

When the judgment result is yes, if the mobile terminal generates and transmits the call signal for the first time, the mobile terminal shields a wireless signal from a car beacon; or after the time for continuously receiving the wireless signal of the car beacon exceeds a preset time threshold, the mobile terminal shields the wireless signal from the car beacon; and when the mobile terminal does not receive the wireless signal of the car beacon, the shielding is canceled.

When the judging result is no, after the mobile terminal generates and transmits the call signal for the first time, the mobile terminal continuously monitors the wireless signal, shields the wireless signal from the car beacon during the period of changing the state of receiving the wireless signal from the receiving state to the non-receiving state, changing the state from the non-receiving state to the receiving state again, and changing the state from the receiving state to the non-receiving state again, and then removes the shielding.

Or, during a period when the position of the mobile terminal becomes a destination floor after the mobile terminal generates and transmits the call signal for the first time, the mobile terminal shields a wireless signal from a car beacon; or when the time for the mobile terminal to continuously receive the wireless signal of the car beacon exceeds a preset time threshold, the mobile terminal shields the wireless signal from the car beacon; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.

Or the mobile terminal identifies which stage of the elevator taking stage the elevator waiting passengers are in according to the floor where the mobile terminal is located, the distance between the mobile terminal and the car beacon and the position of the elevator car, and decides whether to shield the wireless signals according to the identification result, wherein the elevator taking stage comprises the elevator waiting stage, the car entering stage, the car moving together with the car and the car leaving stage.

Specifically, when the floor where the mobile terminal is located is unchanged and the position of the elevator car is changed, or the floor where the mobile terminal is located is unchanged and the position of the elevator car and the second distance are unchanged, the passenger is in a waiting stage; when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually reduced, the passenger is in a car entering stage; when the elevator car position changes but the second distance remains unchanged, the passenger is in a phase of moving with the car; when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually increased, the passenger is in a car leaving stage, and the second distance is the distance between the mobile terminal and a car beacon.

After the mobile terminal first generates and transmits the call signal, the screening state is maintained until the passenger is identified as leaving the car and the second distance exceeds a threshold.

Example 3

This embodiment considers the scenario when the building in which the elevator is located is configured with elevators under multiple group control.

A plurality of cabs exist in one lobby, and each cab is provided with a cab beacon; after the mobile terminal receives the wireless signals of the second car beacon, the mobile terminal shields the wireless signals from all car beacons; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.

The present application has been described in detail by way of specific embodiments and examples, but these should not be construed as limiting the application. Many variations and modifications may be made by one skilled in the art without departing from the principles of the application, which is also considered to be within the scope of the application.

Claims (11)

1. An elevator calling system is characterized by comprising a car beacon which is arranged on a car and used for broadcasting wireless signals in a wireless mode and a mobile terminal carried by a waiting passenger;

the mobile terminal is provided with application software for registering call signals in advance, and the application software is started after the wireless signals are received;

the coverage area of the wireless signal of the car beacon is a circle with the car beacon as a circle center and the radius R, and the radius R enables the mobile terminal of the waiting elevator passenger to receive the wireless signal at the entering moment of not later than the elevator car entering the deceleration zone corresponding to the floor where the waiting elevator passenger is located;

the mobile terminal generates and transmits a call signal to the elevator control system.

2. The elevator call system of claim 1, wherein,

the square of the radius R is larger than or equal to the sum of squares of the deceleration distance and the maximum waiting distance; the deceleration distance is the distance between the deceleration point and the departure floor, and the maximum elevator waiting distance is the maximum distance between the position of the elevator door and the elevator door when the elevator waiting passengers enter the elevator waiting hall.

3. The elevator call system of claim 1, wherein,

the wireless signal comprises the running direction and the current position of the elevator car;

the mobile terminal firstly determines a departure floor and a destination floor of a waiting passenger by utilizing a pre-stored floor pair according to the current floor of the mobile terminal; and judging whether the waiting passengers can get into the elevator car during the period that the mobile terminal receives the wireless signal broadcast by the car beacon for the first time according to the running direction, the current position and the departure floor and the destination floor of the waiting passengers.

4. An elevator call system according to claim 3, characterized in that the mobile terminal has a yes judgment when the following conditions are met, and a no judgment:

the running direction of the elevator is consistent with the expected elevator taking direction of the elevator waiting passengers;

condition 2, the elevator car is currently located outside the deceleration zone;

condition 3, departure floor, is located in front of the direction of travel of the elevator car.

5. The elevator call system according to claim 3, wherein when the determination is yes, the mobile terminal shields a wireless signal from a car beacon if the mobile terminal generates and transmits the call signal for the first time; and when the mobile terminal does not receive the wireless signal of the car beacon, the shielding is canceled.

6. The elevator call system according to claim 3, wherein when the determination result is no, after the mobile terminal generates and transmits the call signal for the first time, the mobile terminal continuously monitors the wireless signal, shields the wireless signal from the car beacon during all of the time when the wireless signal is currently received, changed from the non-received state to the received state, and changed from the received to the non-received state again, and then removes the shielding.

7. The elevator call system of claim 1, wherein the mobile terminal shields wireless signals from car beacons during a period after the mobile terminal first generates and transmits the call signal until the location of the mobile terminal becomes a destination floor; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.

8. An elevator call system according to claim 3, characterized in that,

the mobile terminal identifies which stage of the elevator taking stages the elevator waiting passengers are in according to the distance between the mobile terminal and the car beacon and the position of the elevator car, and decides whether to shield the wireless signals according to the identification result, wherein the elevator taking stages comprise the elevator waiting stages, entering the car, moving together with the car and leaving the car.

9. The elevator call system of claim 8, wherein,

when the floor where the mobile terminal is located is unchanged and the position of the elevator car is changed, or the floor where the mobile terminal is located is unchanged and the position of the elevator car and the second distance are unchanged, the passenger is in a waiting stage;

when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually reduced, the passenger is in a car entering stage;

when the elevator car position changes but the second distance remains unchanged, the passenger is in a phase of moving with the car;

when the floor where the mobile terminal is located and the elevator car position are unchanged but the second distance is gradually increased, the passenger is in a car leaving stage, and the second distance is the distance between the mobile terminal and a car beacon.

10. Elevator call system according to claim 8 or 9, characterized in that after the mobile terminal has first generated and transmitted the call signal, a screening-off state is maintained until the passenger is identified as leaving the car and the second distance exceeds a threshold value.

11. The elevator call system of claim 1, wherein there are a plurality of cars in one lobby, each car being provided with a car beacon; after the mobile terminal receives the wireless signals of the second car beacon, the mobile terminal shields the wireless signals from all car beacons; and after the position of the mobile terminal is the destination floor and the wireless signal is no longer received, canceling shielding.