Mobile terminal and information transmission system and method for elevator hall

Abstract

This invention discloses an information transmission system between a mobile terminal and an elevator, comprising a mobile terminal, a landing wireless signal device installed at an elevator landing, a car wireless signal device installed in the elevator car and moving with the elevator car, and an elevator control device; the landing wireless signal device broadcasts a landing wireless signal, and the car wireless signal device broadcasts a car wireless signal; at least one of the landing wireless signal or the car wireless signal includes a first identifier, which indicates whether it originates from the landing wireless signal device or the car wireless signal device; when both the landing wireless signal and the car wireless signal are received simultaneously, the mobile terminal identifies the landing wireless signal based on the first identifier and establishes a communication connection with the landing wireless signal device on its current floor. The mobile terminal of this invention can quickly and conveniently identify the landing wireless signal device on its current floor and establish a connection with it.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, specifically to an information transmission system and method between a mobile terminal and an elevator shaft. Background Technology

[0002] To reduce the connection channel capacity requirements of wireless signal devices and decrease the possibility of "traffic congestion" between personal mobile terminals and wireless signal devices, Reference 1 (CN201810384322.9) proposes that a wireless signal device for broadcasting wireless signals communicates with the elevator controller of an elevator system and can establish a wireless connection with personal mobile terminals based on wireless signals and receive elevator service request commands from personal mobile terminals. The wireless signal device can also send the received elevator service request commands to the elevator controller for elevator service control. The wireless signal device includes: an elevator service request command response unit for generating a responded elevator service request command data packet based on the received elevator service request command, and a broadcasting unit for broadcasting the responded elevator service request command data packet. The wireless signal device is usually installed on the landing. The mobile terminal receives the wireless signal broadcast by the wireless signal device by scanning. When the elevator car is also equipped with a wireless signal device that broadcasts relevant content to the outside world, if the elevator car approaches the landing wireless signal device, the mobile terminal will scan for the wireless signal broadcast by both the landing wireless signal device and the car wireless signal device at the same time. This makes it difficult for the mobile terminal to respond to the wireless signal broadcast by the landing wireless signal device.

[0003] Reference 2 (CN201810635008.3) addresses the issue of how to facilitate quick and convenient acquisition of floor information for personal mobile terminals without requiring the use of connection capacity between the personal mobile terminal and the wireless signal device. It proposes that the car wireless signal device broadcasts an identification identifier including a floor information bit, which indicates the floor the wireless signal device is located on. The personal mobile terminal can identify the broadcast identifier without establishing a connection with the car wireless signal device and obtain its current floor information based on the floor information bit in the identified identifier. However, when multiple elevators exist in the elevator shaft and adjacent elevator cars intersect in the shaft, or when an elevator car is close to a floor, the mobile device inside the car may simultaneously receive wireless signals broadcast by car wireless signal devices or floor wireless signal devices located in other elevator cars, thus creating difficulties for the subsequent implementation of wireless signal-based functions on the mobile terminal.

[0004] The two technical problems mentioned above arise because wireless signal devices transmit information via broadcast, and the simultaneous presence of multiple wireless signal devices makes it difficult for mobile devices to receive and identify the wireless signals. In addition to this issue, existing technologies do not consider the mobile terminal's need for broadcast wireless signals from these devices, and instead rely entirely on continuous, uninterrupted broadcasting. However, terminal and car wireless signal devices do not require continuous broadcasting; broadcasting is only necessary when the mobile terminal needs information and is within the coverage area of ​​the broadcast signal. Therefore, to reduce power consumption and extend the lifespan of wireless signal devices, it is necessary to appropriately control whether the wireless signal device broadcasts and the content of the wireless signal. Summary of the Invention

[0005] The summary of this invention introduces a series of simplified concepts, all of which are simplifications of existing technologies in the field, and will be further explained in detail in the detailed description section. This summary is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To solve the above-mentioned technical problems, the present invention provides an information transmission system between a mobile terminal and an elevator, including a mobile terminal, a floor wireless signal device installed at the elevator landing, a car wireless signal device installed in the elevator car and moving with the elevator car, and an elevator control device.

[0007] The landing station wireless signal device broadcasts the landing station wireless signal to the outside world, and the car wireless signal device broadcasts the car wireless signal to the outside world;

[0008] At least one of the landing station wireless signal or the car wireless signal includes a first identifier, which is used to indicate whether it comes from the landing station wireless signal device or the car wireless signal device.

[0009] When both the landing station wireless signal and the car wireless signal are received simultaneously, the mobile terminal identifies the landing station wireless signal based on the first identifier and establishes a communication connection between itself and the landing station wireless signal device on its floor.

[0010] Preferably, when the mobile terminal receives multiple floor station wireless signals simultaneously, and the power of each floor station wireless signal device broadcasting the floor station wireless signal is approximately equal, after the mobile terminal identifies the floor station wireless signal according to the first identifier, it further identifies the strongest floor station wireless signal as coming from the floor station wireless signal device on its floor, and then establishes a communication connection between itself and the floor station wireless signal device on its floor.

[0011] Preferably, the mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system via the floor station wireless signal device on the floor where it is located. The elevator control system determines and outputs a response elevator identifier. The mobile terminal receives the response elevator identifier via the floor station wireless signal device on the floor where it is located.

[0012] Preferably, the mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the floor station wireless signal device on its floor. The floor station wireless signal device compares the passenger's registered destination floor information with the received already registered destination floor information. If the passenger's registered destination floor information is already included in the already registered destination floor information, the floor station wireless signal device on its floor directly sends the corresponding response elevator identifier to the mobile terminal. Otherwise, the floor station wireless signal device on its floor sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system. The elevator control system determines and outputs the response elevator identifier. The mobile terminal receives the response elevator identifier through the floor station wireless signal device on its floor.

[0013] Preferably, the elevator control system determines the travel time of the responding elevator to the floor where the mobile terminal is located and broadcasts it to the outside via the floor station wireless signal device. The mobile terminal parses the travel time from the floor station wireless signal, then stops scanning the wireless signal until the travel time has elapsed, after which it restarts scanning the wireless signal.

[0014] Preferably, the mobile terminal filters out the car wireless signal from the wireless signals it receives based on the first identifier; when the number of received car wireless signals is 1, the received car wireless signal is directly used as the responding elevator car wireless signal; otherwise, the responding elevator car wireless signal is determined based on the intensity changes of each responding elevator car wireless signal; specific information is obtained and determined from the responding elevator car wireless signal, and the specific information includes at least the current floor information of the elevator car.

[0015] Preferably, the car wireless signal includes a car device ID identifier for identifying the car wireless signal device ID. The mobile terminal determines the responding elevator car wireless signal from the received wireless signals according to the correspondence between the car device ID identifier and the elevator identifier. It obtains and determines specific information from the responding elevator car wireless signal, and the specific information includes at least the floor information of the current elevator car floor.

[0016] Preferably, each car wireless signal device has a third identifier that distinguishes it from other car wireless signal devices. The elevator control system stores a list of correspondences between each elevator identifier and the third identifier of its car wireless signal device. When the elevator control system sends a response elevator identifier to the mobile terminal via the floor wireless signal device on the floor it is on, it also sends the third identifier of the corresponding car wireless signal device. The mobile terminal filters out the car wireless signals containing the third identifier of the car wireless signal device from the received wireless signals, and obtains and determines specific information from them. The specific information includes at least the information of the current floor of the elevator car.

[0017] Preferably, determining the wireless signal of the responding elevator car based on the intensity change of each responding elevator car specifically involves: identifying the car wireless signal whose signal intensity change does not exceed a threshold and whose duration exceeds a preset time as originating from the responding elevator car.

[0018] Preferably, the wireless signal strength from the car wireless signal device is monitored. When the duration of the wireless signal strength change of one of the car wireless signal devices not exceeding the threshold exceeds a preset time, its third identifier is obtained and compared with the third identifier obtained from the elevator control system. When the two are inconsistent, it is determined that the passenger has not taken the responding elevator, and the passenger's destination floor information is re-registered through the car wireless signal device.

[0019] Preferably, the wireless signal broadcast of the car wireless signal device is turned off when the following conditions are met, and is turned on again when at least one of the following conditions is no longer met:

[0020] Condition 1: There is no mobile terminal inside the elevator car;

[0021] Condition 2: There is no call signal assigned to the elevator on the floor located in front of the elevator and within a threshold distance from the current position of the elevator car.

[0022] The present invention also provides a method for information transmission between a mobile terminal and an elevator, comprising:

[0023] Step 1: The mobile terminal receives wireless signals;

[0024] Step 2: Differentiate between the floor station wireless signal and the car wireless signal based on the first identifier;

[0025] Step 3: Continuously determine whether the mobile terminal is located on the floor, and only proceed to the next step if the determination result is yes;

[0026] Step 4: Establish a communication connection between the device and the wireless signal device at the floor level, and use the communication connection between the device and the wireless signal device at the floor level to send at least the destination floor and the mobile device ID to the elevator control system, while receiving the elevator identification response from the elevator control system.

[0027] Step 5: Continuously determine whether the elevator has arrived at the floor where the mobile terminal is located. Only proceed to the next step if the result is yes.

[0028] Step 6: Continuously determine whether the mobile terminal has been brought from the landing station into the car. Proceed to the next step only if the result is yes.

[0029] Step 7: Obtain and determine specific information from the still unchanged car wireless signal. The specific information includes at least the floor information of the current elevator car.

[0030] Preferably, when the strength change of at least one floor station wireless signal does not exceed a threshold and the strength change of all car wireless signals exceeds the threshold, step 3 determines that the mobile terminal is located on a floor station.

[0031] Preferably, after the responding elevator has arrived at the floor where the mobile terminal is located, step 5 determines that the responding elevator has arrived at the floor where the mobile terminal is located if the following condition is met:

[0032] Condition A: The strength variation of the floor station wireless signal on the floor where the mobile terminal is located remains within a threshold value;

[0033] Condition B: The response elevator car wireless signal goes through three consecutive stages: Stage 1, from never receiving to receiving; Stage 2, the strength generally continues to increase; Stage 3, the strength generally remains unchanged.

[0034] Preferably, after determining in step 5 that the responding elevator has arrived at the floor where the mobile terminal is located, step 6 determines that the mobile terminal has been brought from the floor into the elevator car if the following condition is met:

[0035] Condition 1: The strength of the car's wireless signal undergoes a monotonically increasing phase with an overall stable increase;

[0036] Condition 2: The car wireless signal remains generally stable after the monotonically increasing phase, and its variation does not exceed the threshold.

[0037] Condition 3: The floor station wireless signal corresponding to the floor where the mobile terminal is located experiences at least one signal strength change exceeding the threshold during the monotonically increasing phase of the car wireless signal and the subsequent overall stable phase.

[0038] Preferably, after determining in step 5 that the responding elevator has arrived at the floor where the mobile terminal is located, step 6 determines that the mobile terminal has been brought from the floor into the elevator car if the following condition is met:

[0039] Condition I: The duration of the state where the change in the strength of the car's wireless signal and the strength of the floor station's wireless signal on the floor where the mobile terminal is located does not exceed the threshold exceeds the time threshold.

[0040] After conditions II and I are met, the change in the wireless signal strength in the car still does not exceed the threshold, while the change in the wireless signal strength at the landing exceeds the threshold.

[0041] Preferably, between step 6 and step 7, the following step is also included: step A1, determining whether the car wireless signal that satisfies conditions 1 and 2 corresponds to the responding elevator. If so, proceed directly to the next step; otherwise, determine that the passenger has taken another elevator and prompt the passenger to re-enter their destination floor information.

[0042] Preferably, between step 6 and step 7, the following step is also included: Step B1, determining whether the car wireless signal whose change in car wireless signal strength in condition II still does not exceed the threshold corresponds to the responding elevator. If so, proceed directly to the next step; otherwise, determine that the passenger has taken another elevator and prompt the passenger to re-enter their destination floor information.

[0043] Preferably, the information transmission method further includes: step 8, determining whether the wireless signal of the responding elevator car remains in a state where the intensity change does not exceed a threshold before the responding elevator car has not reached the destination floor, based on the information of the current floor of the car obtained by the mobile terminal from the wireless signal of the responding elevator car. If not, it is determined that the passenger has left the elevator car before reaching the destination floor, and the mobile terminal is used to warn the passenger.

[0044] Compared with existing technologies, the mobile terminal of the present invention can quickly and conveniently identify and establish a connection with the floor station wireless signal device on its current floor. In a preferred embodiment, the floor station wireless signal device and the car wireless signal device do not require continuous broadcasting, which can reduce power consumption and extend the service life of the wireless signal device. Attached Figure Description

[0045] This invention has no accompanying drawings. Detailed Implementation

[0046] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can fully understand other advantages and technical effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, with various modifications or changes made without departing from the overall design concept of the invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other. The following exemplary embodiments of the present invention can be implemented in many different forms and should not be construed as being limited to the specific embodiments set forth herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary embodiments to those skilled in the art.

[0047] Example 1

[0048] To realize the information transmission system between the mobile terminal and the elevator, the information transmission system includes a mobile terminal, a floor wireless signal device installed at the elevator landing, a car wireless signal device installed in the elevator car and moving with the elevator car, and an elevator control device; the floor wireless signal device broadcasts the floor wireless signal to the outside, and the car wireless signal device broadcasts the car wireless signal to the outside.

[0049] For example:

[0050] Assume a building has 20 floors and four elevators (#A to #D). Each floor from floor 1 to 5 has a landing station wireless signal device, and each elevator car has a car wireless signal device. To achieve better wireless signal coverage, the strength and coverage of the wireless signals broadcast by all devices (including landing station and car wireless signal devices) should be such that when a passenger carrying a mobile device is on a floor, the mobile device can simultaneously receive the wireless signals broadcast by the landing station wireless signal devices on adjacent floors, as well as the wireless signals broadcast by the car wireless signal devices near the floor where the mobile device is located.

[0051] When a passenger arrives at the 1st floor station with a mobile device and registers their elevator call signal (destination floor elevator request signal) using the device, the mobile terminal may simultaneously receive wireless signals broadcast from both the 1st and 2nd floor station wireless signal devices, as both the station wireless signal device and the car wireless signal device broadcast their signals. Even when elevator #A is descending and approaching the 1st floor, and elevator #B is ascending and has just departed from the 1st floor, their broadcast signals will still be received by the mobile terminal due to their proximity to the 1st floor. Thus, the mobile terminal will receive four wireless signals: one from the 1st floor station wireless signal device, one from the 2nd floor station wireless signal device, one from the car wireless signal device in elevator #A, and one from the car wireless signal device in elevator #B. To complete the passenger's elevator call registration, the mobile terminal must identify the wireless signal from the 1st floor station wireless signal device among these four signals and perform subsequent processing based on the identification result.

[0052] In order for the mobile terminal to correctly identify the landing station wireless signal broadcast by the landing station wireless signal device located on the floor where the mobile terminal (i.e., the passenger) is located (in this embodiment, the 1st floor) from multiple wireless signals, the identification here actually has two meanings: one is to identify the landing station wireless signal broadcast by the landing station wireless signal device from various wireless signals, and the other is to identify the landing station wireless signal broadcast by the landing station wireless signal device on the 1st floor from multiple landing station wireless signal devices.

[0053] Considering that a mobile terminal can roughly determine the distance between itself and the broadcasting device of the received wireless signal based on the strength (including the absence) of the received wireless signal, when the wireless signal devices at each floor broadcast their wireless signals with approximately the same power, due to the building height between the 1st and 2nd floors, the mobile terminal can identify and exclude the wireless signal broadcast by the wireless signal device located on the 2nd floor from its received wireless signals based on the signal strength of the received wireless signals. However, since the elevator cars (#A and #B) may be close to or even directly opposite the 1st floor, the distance between the car wireless signal device inside the elevator car (#A and #B) and the floor wireless signal device is very small. Therefore, the strength of the car wireless signal broadcast by the car wireless signal device inside the elevator car (#A and #B) may be very close to the strength of the floor wireless signal broadcast by the floor wireless signal device located on the 1st floor. In this case, the mobile terminal can no longer identify and exclude the car wireless signal broadcast by the car wireless signal device based on the received signal strength.

[0054] In order for mobile terminals to identify the floor station wireless signal broadcast by the floor station wireless signal device located on the first floor, the conventional processing method in the prior art is as follows:

[0055] Each wireless signal device broadcasts a wireless signal containing a unique identifier (such as a string of characters). The mobile terminal uses this unique identifier to uniquely determine which wireless signal device broadcast each signal. The advantage of this method is that the mobile terminal can identify the wireless signal broadcast by the device on the first floor from all the received wireless signals at once. The disadvantage is that the mobile terminal needs to pre-store the correspondence between the wireless signal devices on each floor and the wireless signal devices in each elevator car and their corresponding identifiers. Since the relationship between the wireless signal devices and the elevators and floors can only be determined after the wireless signal devices are installed on-site (especially the floor wireless signal devices), the above correspondence needs to be input into the mobile terminal on-site. Furthermore, when replacing wireless signal devices (different devices will have different identifiers) or exchanging wireless signal devices at different floors or elevator shafts, the correspondence needs to be re-entered into each mobile terminal. Obviously, this is very difficult, or even impossible, in engineering practice.

[0056] The method used in this embodiment is as follows:

[0057] At least one of the landing station wireless signal or the car wireless signal includes a first identifier, which is used to indicate whether it comes from the landing station wireless signal device or the car wireless signal device.

[0058] When both the landing station wireless signal and the car wireless signal are received simultaneously, the mobile terminal identifies the landing station wireless signal based on the first identifier and establishes a communication connection between itself and the landing station wireless signal device on its floor.

[0059] One method for implementing the first identifier is, for example, setting an identifier bit at a specific location of the wireless signal. (Since it is only necessary to distinguish between the car wireless signal device and the landing wireless signal device, only one bit is needed. This identifier bit (its 1 or 0 indicates whether the wireless signal comes from the car wireless signal device or the landing wireless signal device) can be used to identify the car wireless signal or the landing wireless signal. In this way, the mobile terminal only needs to identify this specific identifier bit to obtain the landing wireless signal from the landing wireless signal device among the received wireless signals, and then further determine the landing wireless signal from the landing wireless signal device on the floor where the mobile terminal is located based on the strength of the landing wireless signal.

[0060] It is important to emphasize that this embodiment fully considers the characteristics of the application scenario. First, it determines the specific identification target of the application scenario—only the wireless signal of the wireless signal device on the floor where the mobile terminal is located needs to be identified. Then, it analyzes the possible components of each wireless signal—either the car wireless signal or the floor wireless signal. Next, it utilizes the relationship between the strength and distance of the wireless signal and the characteristic that there must be a distance difference between the wireless signal device on the floor where the mobile terminal is located and the wireless signal devices on other floors and the mobile device, to identify the floor wireless signal corresponding to the floor where the mobile terminal is located from the various floor wireless signals. The process of identifying the landing wireless signal broadcast by the landing wireless signal device where the mobile terminal is located is then broken down into two sub-processes: identifying the car wireless signal or the landing wireless signal, and identifying the landing wireless signal broadcast by the landing wireless signal device where the mobile terminal is located or by landing wireless signal devices on other floors. Utilizing the characteristic that the identification of the signal broadcast by the car wireless signal device or the landing wireless signal device only has two possible values, it is ultimately determined that the identification of the car wireless signal or the landing wireless signal can be achieved by using the 0 and 1 values ​​of a specific flag bit, thus achieving complete identification. Therefore, although the technical means implemented in this embodiment seem simple, they are actually the result of a series of analyses and reasoning.

[0061] Once the mobile terminal identifies the wireless signal of the floor station wireless signal device on its floor, it can use the identification result to perform its predetermined function, such as destination floor signal registration.

[0062] Example 2

[0063] This embodiment describes how, after the mobile terminal identifies the wireless signal of the wireless signal device on the floor where the mobile terminal is located, it further completes the passenger's destination floor registration, based on Embodiment 1. This destination floor registration includes several different implementation methods; the example from Embodiment 1 will be used below for further explanation.

[0064] Method A: When the mobile terminal simultaneously receives multiple floor station wireless signals, and the power of each floor station wireless signal device broadcasting its signal is approximately equal, the mobile terminal identifies the floor station wireless signal based on the first identifier, further identifies the strongest signal as originating from the floor station wireless signal device on its current floor, and then establishes a communication connection with the floor station wireless signal device on its current floor. The mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system via the floor station wireless signal device on its current floor. The elevator control system determines and outputs a response elevator identifier; the mobile terminal receives the response elevator identifier via the floor station wireless signal device on its current floor.

[0065] For example, after identifying the wireless signal broadcast by the floor station wireless signal device on the first floor, the mobile terminal establishes communication with the device. Then, it sends the passenger's registered destination floor information and the mobile terminal's own ID information to the elevator control system via the floor station wireless signal device (the floor station wireless signal device and the elevator control system are communicatively connected). The elevator control system determines and outputs the passenger's response elevator identifier – #C. The mobile terminal receives the passenger's response elevator identifier – #C – via the floor station wireless signal device. This completes the registration of the passenger's destination floor information: first, the floor station wireless signal device is identified; then, a communication connection is established between the mobile terminal and the floor station wireless signal device; and finally, the destination floor information is registered.

[0066] Method B: The mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the floor station wireless signal device on the floor where it is located. The floor station wireless signal device on the floor where it is located compares the passenger's registered destination floor information with the received registered destination floor information.

[0067] When the passenger's registered destination floor information is already included in the registered destination floor information, the floor station wireless signal device of the current floor directly sends the corresponding response elevator identifier to the mobile terminal; otherwise, the floor station wireless signal device of the current floor sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system. The elevator control system determines and outputs the response elevator identifier; the mobile terminal receives the response elevator identifier through the floor station wireless signal device of the current floor.

[0068] For example, after a passenger's mobile terminal identifies and receives the wireless signal broadcast from the wireless signaling device on floor 1, it establishes a communication connection with the device and sends its registered destination floor elevator request signal to it. The device then compares the received request signal with any already registered requests. If the received request already exists in either device, the wireless signaling device sends its elevator response identifier to the mobile terminal. Otherwise, it receives the elevator allocation result (i.e., the elevator response identifier) ​​from the elevator control system and sends it to the mobile terminal. In this method, the wireless signal broadcast by the wireless signaling device on floor 1 only contains identification information indicating that it originates from the device, thus reducing the difficulty and complexity of generating the broadcast signal.

[0069] Method C, a further improvement on any of the aforementioned methods, specifically includes: the elevator control system determines the travel time of the responding elevator to the floor where the mobile terminal is located and broadcasts this time externally by the floor station wireless signal device. The mobile terminal parses the travel time from the floor station wireless signal, then stops scanning the wireless signal until the travel time has elapsed, after which it restarts scanning the wireless signal. The purpose is to receive the wireless signal broadcast by the car wireless signal device inside the responding elevator; or the elevator control system determines the travel time of the responding elevator to the floor where the mobile terminal is located and sends the travel time to the mobile terminal via its communication connection with the mobile terminal. After receiving the travel time, the mobile terminal stops scanning the wireless signal until the travel time has elapsed, after which it restarts scanning the wireless signal. This processing method helps reduce the power consumption of the mobile terminal.

[0070] Example 3

[0071] This embodiment, after determining the responding elevator in Embodiment 2, explains how to obtain the desired information based on the wireless signal broadcast by the car wireless signaling device inside the responding elevator car. Here, the desired information is, for example, the current floor of the car (the wireless signal varies depending on the floor corresponding to the current position of the elevator car). In this case, the car wireless signal broadcast by the car wireless signaling device contains the floor information corresponding to the current position of the elevator car.

[0072] The mobile terminal filters out the car wireless signal from the received wireless signals based on the first identifier. When the number of received car wireless signals is 1, it directly uses that received car wireless signal as the responding elevator car wireless signal; otherwise, it determines the responding elevator car wireless signal based on the strength changes of each responding elevator car wireless signal. The responding elevator car wireless signal refers to the car wireless signal broadcast by the car wireless signal device installed in the responding elevator car. The strength of the responding elevator car wireless signal received by the mobile terminal remains basically constant, while the signal strength received by the mobile terminal from other non-responding elevator car wireless signal devices changes as the distance between the elevator and the responding elevator car changes due to the elevator's movement.

[0073] The step of determining the wireless signal of each responding elevator car based on the intensity change of each responding elevator car wireless signal specifically involves: determining that the wireless signal of the car whose signal intensity change does not exceed the threshold and whose duration exceeds a preset time originates from the wireless signal device installed in the responding elevator car.

[0074] Because of the different locations of elevator cars, sometimes a mobile terminal inside a responding elevator car may receive not only the wireless signal broadcast by the wireless signal device located inside the responding elevator car, but also the floor wireless signal broadcast by the floor wireless signal device and / or the car wireless signal broadcast by the wireless signal device located in other elevator cars. Therefore, in order to obtain and determine specific information, the mobile terminal needs to identify the wireless signal broadcast by the wireless signal device in the responding elevator car where the mobile terminal is located from the various wireless signals received.

[0075] One method is that the car wireless signal includes a car device ID identifier for identifying the car wireless signal device ID, and the mobile terminal determines the responding elevator car wireless signal from the received wireless signals according to the correspondence between the car device ID identifier and the elevator identifier; and obtains and determines specific information from the responding elevator car wireless signal, wherein the specific information includes at least the floor information where the elevator car is currently located.

[0076] Another method involves each elevator car's wireless signaling device having a third identifier that distinguishes it from other car wireless signaling devices. The elevator control system stores a list corresponding to each elevator identifier and its corresponding third identifier. When the elevator control system sends a response elevator identifier to the mobile terminal via the floor station wireless signaling device, it simultaneously sends the third identifier of the corresponding car wireless signaling device. The mobile terminal filters out car wireless signals containing the third identifier of the car wireless signaling device from the received wireless signals and obtains and determines specific information from them. This specific information includes at least the information of the current floor where the elevator car is located. This method is implemented using the floor station wireless signaling device when the passenger is at the floor station.

[0077] Preferably, the system can simultaneously monitor the wireless signal strength from the car's wireless signal devices. If the duration of a signal strength change not exceeding a threshold value for one of the car's wireless signal devices exceeds a preset time, its third identifier is acquired and compared with a third identifier obtained from the elevator control system. If the two are inconsistent, it is determined that the passenger did not take the responding elevator, and the passenger's destination floor information is re-registered via the car's wireless signal device. Alternatively, the system can further utilize the car's wireless signal device within the passenger's current elevator car to send a message to the elevator control system deleting the passenger's registration information for the original responding elevator's destination floor.

[0078] Example 4

[0079] Based on the aforementioned embodiments, in order to reduce the power consumption of the car wireless signal device and extend its service life, the wireless signal broadcast of the car wireless signal device shall be turned off when the following conditions are met, and shall be turned on again when at least one of the following conditions is no longer met:

[0080] Condition 1: There is no mobile terminal in the elevator car (when the elevator car has stopped at the destination floor corresponding to the mobile terminal, it is assumed that the passenger carrying the mobile terminal has arrived at the destination floor and left the elevator car, so the mobile terminal is naturally not in the elevator car).

[0081] Condition 2: There are no call signals assigned to this elevator on the floor located in front of the elevator and within a threshold distance of the elevator car's current position.

[0082] This processing method also helps to reduce the number of sources of wireless information received by mobile terminals, thereby reducing the difficulty of identification.

[0083] Example 5

[0084] This embodiment provides a method for information transmission between a mobile terminal and an elevator, including:

[0085] Step 1: The mobile terminal receives wireless signals;

[0086] Step 2: Differentiate between the floor station wireless signal and the car wireless signal based on the first identifier;

[0087] Step 3: Continuously determine whether the mobile terminal is located on the floor station, and proceed to the next step only if the determination result is yes; Step 4: Establish a communication connection between the mobile terminal and the wireless signal device of the floor station, and use the communication connection between the mobile terminal and the wireless signal device of the floor station to send at least the destination floor and the mobile device ID to the elevator control system, while receiving the response elevator identifier from the elevator control system.

[0088] Step 5: Continuously determine whether the responding elevator has arrived at the floor where the mobile terminal is located, and only proceed to the next step if the result is yes;

[0089] Step 6: Continuously determine whether the mobile terminal has been brought from the landing station into the elevator car. Only proceed to the next step if the result is yes.

[0090] Step 7: Obtain and determine specific information from the still unchanged car wireless signal. The specific information includes at least the floor information of the current elevator car.

[0091] Preferably, the information transmission method further includes: step 8, determining whether the wireless signal of the responding elevator car remains in a state where the intensity change does not exceed a threshold before the responding elevator car has not reached the destination floor, based on the information of the current floor of the car obtained by the mobile terminal from the wireless signal of the responding elevator car. If not, it is determined that the passenger has left the elevator car before reaching the destination floor, and the mobile terminal is used to warn the passenger.

[0092] When the strength change of at least one floor wireless signal does not exceed a threshold and the strength change of all car wireless signals exceeds the threshold, step 3 determines that the mobile terminal is located at a floor. Note that the strength change of all car wireless signals exceeding the threshold here does not mean that the strength change of all car wireless signals must exceed the threshold simultaneously, but rather that for each car wireless signal, there is at least one moment when the strength change exceeds the threshold.

[0093] After the responding elevator has arrived at the floor where the mobile terminal is located, step 5 determines that the responding elevator has arrived at the floor where the mobile terminal is located if the following conditions are met:

[0094] Condition A: The strength variation of the floor station wireless signal on the floor where the mobile terminal is located remains within a threshold value;

[0095] Condition B: The response elevator car wireless signal goes through three consecutive stages: Stage 1, from never receiving to receiving; Stage 2, the strength generally continues to increase; Stage 3, the strength generally remains unchanged.

[0096] After determining in step 5 that the responding elevator has arrived at the floor where the mobile terminal is located, step 6 determines that the mobile terminal has been brought from the floor into the elevator car if the following condition is met:

[0097] Condition 1: The strength of the car's wireless signal undergoes a monotonically increasing phase with an overall stable increase;

[0098] Condition 2: The car wireless signal remains generally stable after the monotonically increasing phase, and its variation does not exceed the threshold.

[0099] Condition 3: The floor station wireless signal corresponding to the floor where the mobile terminal is located experiences at least one signal strength change exceeding the threshold during the monotonically increasing phase of the car wireless signal and the subsequent overall stable phase.

[0100] Preferably, between step 6 and step 7, the following step is also included: step A1, determining whether the car wireless signal that satisfies conditions 1 and 2 corresponds to the responding elevator. If so, proceed directly to the next step; otherwise, determine that the passenger has taken another elevator and prompt the passenger to re-enter their destination floor information.

[0101] Example 6

[0102] The difference between this embodiment and embodiment 6 is that: after determining in step 5 that the responding elevator has arrived at the floor where the mobile terminal is located, step 6 determines that the mobile terminal has been brought into the car from the floor if the following condition is met:

[0103] Condition I: The duration of the state where the change in the strength of the car's wireless signal and the strength of the floor station's wireless signal on the floor where the mobile terminal is located does not exceed the threshold exceeds the time threshold.

[0104] After conditions II and I are met, the change in the wireless signal strength in the car still does not exceed the threshold, while the change in the wireless signal strength at the landing exceeds the threshold.

[0105] Example 7

[0106] Based on embodiment 5 or embodiment 6, the following further applies between step 6 and step 7:

[0107] Step B1: Determine whether the car wireless signal whose strength change in condition II still does not exceed the threshold corresponds to the responding elevator. If yes, proceed directly to the next step; otherwise, determine that the passenger has taken another elevator and prompt the passenger to re-enter their destination floor information.

[0108] The present invention has been described in detail above through specific embodiments and examples, but these are not intended to limit the invention. Many modifications and improvements can be made by those skilled in the art without departing from the principles of the invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. An information transmission system between a mobile terminal and an elevator, characterized in that, It includes a mobile terminal, a floor wireless signal device installed at the elevator landing, a car wireless signal device installed in the elevator car and moving with the elevator car, and an elevator control device. The landing station wireless signal device broadcasts the landing station wireless signal to the outside world, and the car wireless signal device broadcasts the car wireless signal to the outside world; At least one of the landing station wireless signal or the car wireless signal includes a first identifier, which is used to indicate whether it comes from the landing station wireless signal device or the car wireless signal device. When both the landing station wireless signal and the car wireless signal are received simultaneously, the mobile terminal identifies the landing station wireless signal based on the first identifier and establishes a communication connection between itself and the landing station wireless signal device on its current floor. The elevator control system determines the travel time for the elevator to reach the floor where the mobile terminal is located and broadcasts this time to the outside world via the floor station wireless signal device. The mobile terminal parses the travel time from the floor station wireless signal, then stops scanning the wireless signal until the travel time has elapsed, after which it restarts scanning the wireless signal.

2. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, When the mobile terminal receives multiple floor station wireless signals simultaneously, and the power of each floor station wireless signal device broadcasting the floor station wireless signal is approximately equal, the mobile terminal identifies the floor station wireless signal based on the first identifier, further identifies the strongest floor station wireless signal as coming from the floor station wireless signal device on its floor, and then establishes a communication connection between itself and the floor station wireless signal device on its floor.

3. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, The mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system via the floor station wireless signal device on the floor where it is located. The elevator control system then determines and outputs a response elevator identifier. The mobile terminal receives the responding elevator identifier via the floor station wireless signal device on its current floor.

4. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, The mobile terminal sends the passenger's registered destination floor information and the mobile device's ID information to the floor station wireless signal device on the floor where it is located. The floor station wireless signal device on the floor where it is located compares the passenger's registered destination floor information with the received registered destination floor information. When the destination floor information registered by the passenger is already included in the registered destination floor information, the floor station wireless signal device of the floor directly sends the corresponding response elevator identifier to the mobile terminal; otherwise, the floor station wireless signal device of the floor sends the passenger's registered destination floor information and the mobile device's ID information to the elevator control system, and the elevator control system determines and outputs the response elevator identifier. The mobile terminal receives the responding elevator identifier via the floor station wireless signal device on its current floor.

5. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, The mobile terminal filters out the car wireless signal from the wireless signals it receives based on the first identifier; When the number of received car wireless signals is 1, the received car wireless signal is directly used as the response elevator car wireless signal; otherwise, the response elevator car wireless signal is determined according to the strength change of each response elevator car wireless signal. Specific information is obtained and determined from the response elevator car wireless signal, and the specific information includes at least the floor information where the elevator car is currently located.

6. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, The car wireless signal includes a car device ID identifier for identifying the car wireless signal device ID. The mobile terminal determines the elevator car wireless signal to respond to from the received wireless signals based on the correspondence between the car device ID identifier and the elevator identifier. The elevator car obtains and determines specific information from the response to the elevator car's wireless signal, and the specific information includes at least the floor information where the elevator car is currently located.

7. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, Each car wireless signal device has a third identifier that distinguishes it from other car wireless signal devices. The elevator control system stores a list of the correspondence between each elevator identifier and the third identifier of its car wireless signal device. When the elevator control system sends the responding elevator identifier to the mobile terminal via the floor wireless signal device on the floor it is on, it also sends the third identifier of the corresponding car wireless signal device. The mobile terminal filters out the car wireless signals containing the third identifier of the car wireless signal device from the received wireless signals, and obtains and determines specific information from them. The specific information includes at least the information of the current floor of the elevator car.

8. The information transmission system between the mobile terminal and the elevator lobby according to claim 5, characterized in that, The specific steps for determining the corresponding elevator car wireless signal based on the strength changes of each responding elevator car wireless signal are as follows: A car wireless signal whose signal strength change does not exceed a threshold and whose duration exceeds a preset time is identified as originating from the responding elevator car.

9. The information transmission system between the mobile terminal and the elevator lobby according to claim 7, characterized in that, The system monitors the wireless signal strength from the car wireless signal device. When the duration of the wireless signal strength change of one of the car wireless signal devices does not exceed the threshold exceeds a preset time, its third identifier is obtained and compared with the third identifier obtained from the elevator control system. When the two are inconsistent, it is determined that the passenger has not taken the responding elevator, and the passenger's destination floor information is re-registered through the car wireless signal device.

10. The information transmission system between the mobile terminal and the elevator lobby according to claim 1, characterized in that, The car radio signal broadcasting will be turned off when the following conditions are met, and will be turned back on when at least one of the following conditions is no longer met: Condition 1: There is no mobile terminal inside the elevator car; Condition 2: There is no call signal assigned to the elevator on the floor located in front of the elevator and within a threshold distance from the current position of the elevator car.