An elevator remote alarm method and system based on an outbound service cabinet

Abstract

The present application relates to elevator alarm technical field, especially a kind of elevator remote alarm method and system based on outbound service cabinet, elevator remote alarm method includes: in response to the alarm operation in elevator car, first road call is initiated to on-duty room telephone through machine room voice gateway;Whether first road call is answered by on-duty room telephone within preset time is judged, according to the result of judgment, outbound request is initiated to outbound service cabinet based on machine room voice gateway;Outbound service cabinet responds to outbound request, determines an idle target outbound module from several outbound modules based on scheduling algorithm;Control target outbound module initiates second road call to rescuer mobile phone through public telephone network, and the voice communication channel between car alarm telephone and rescuer mobile phone is established according to the result of answering second road call.

Description

Technical Field

[0001] This invention relates to the field of elevator alarm technology, and in particular to a remote elevator alarm method and system based on an outbound call service cabinet. Background Technology

[0002] The elevator five-way intercom system is an important component of elevator safety operation, used to enable emergency communication between the car, machine room and management center when a passenger is trapped in the elevator.

[0003] Traditional elevator remote alarm systems typically employ a "one elevator, one module" approach, where a separate outbound call module is installed in the machine room of each elevator. This module is equipped with a registered mobile phone SIM card, used to forward alarm calls to rescue personnel's mobile phones when no one answers in the control room. However, this approach has significant drawbacks: First, for a park or building complex with multiple elevators, it requires applying for and managing a separate SIM card for each elevator, which is cumbersome and costly. Second, since elevator entrapment alarms are low-probability events, these independent modules and SIM cards are idle most of the time, resulting in a significant waste of resources. Furthermore, as the system scales up, the large number of independent modules increases the complexity of maintenance and management. Therefore, existing technologies suffer from low resource utilization, high operating costs, and poor system scalability. Summary of the Invention

[0004] To address the aforementioned shortcomings, the present invention aims to propose a remote elevator alarm method and system based on an outbound call service cabinet. This method aims to construct a centrally deployed and shared outbound call module resource pool, and utilize a dynamic scheduling algorithm to allocate communication resources on demand. This allows for the use of far fewer outbound call modules than elevators to meet the concurrent alarm requirements of a large-scale elevator group, effectively solving the problems of resource idleness, high costs, and complex operation and maintenance in traditional solutions.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An elevator remote alarm method based on an outbound call service cabinet is provided. The elevator remote alarm method is applied to an elevator system, which includes a car alarm telephone, a machine room voice gateway, a duty room telephone, an outbound call service cabinet, and a mobile phone for rescue personnel.

[0007] The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network.

[0008] The elevator remote alarm method includes the following steps:

[0009] S1: In response to an alarm operation inside the elevator car, initiate a first call to the duty room telephone through the voice gateway in the machine room;

[0010] S2: Determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, initiate an outbound call request to the outbound call service cabinet based on the computer room voice gateway.

[0011] S3: The outbound call service cabinet responds to the outbound call request and determines an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm;

[0012] S4: Control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call.

[0013] Preferably, step S1 includes:

[0014] In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room;

[0015] While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio.

[0016] Preferably, step S2 includes:

[0017] If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway;

[0018] Obtain elevator identification information and target outbound phone number from the outbound call request;

[0019] After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

[0020] Preferably, step S3 includes:

[0021] The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules;

[0022] Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module;

[0023] After identifying the target outbound calling module, update the call count record of that target outbound calling module.

[0024] Preferably, the calculation of the number of outbound call modules includes:

[0025] The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship:

[0026] ;

[0027] in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms.

[0028] By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet.

[0029] Preferably, step S4 includes:

[0030] While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone;

[0031] Monitor the answering status of the second call;

[0032] If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module;

[0033] If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

[0034] An elevator remote alarm system based on an outbound call service cabinet is provided. The elevator remote alarm system is applied to the elevator system, which includes a car alarm telephone, a machine room voice gateway, a duty room telephone, an outbound call service cabinet, and a mobile phone for rescue personnel.

[0035] The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network.

[0036] The elevator remote alarm system includes:

[0037] The alarm triggering module is used to respond to alarm operations inside the elevator car and initiate a first call to the duty room telephone through the voice gateway in the machine room;

[0038] The call determination module is used to determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, it initiates an outbound call request to the outbound call service cabinet based on the computer room voice gateway.

[0039] The scheduling selection module is used by the outbound call service cabinet to determine an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm in response to the outbound call request.

[0040] The control module is used to control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and to establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call.

[0041] Preferably, the alarm triggering module includes:

[0042] In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room;

[0043] While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio.

[0044] The call determination module includes:

[0045] If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway;

[0046] Obtain elevator identification information and target outbound phone number from the outbound call request;

[0047] After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

[0048] Preferably, the scheduling selection module includes:

[0049] The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules;

[0050] Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module;

[0051] After identifying the target outbound calling module, update the call count record of that target outbound calling module.

[0052] Preferably, the calculation of the number of outbound call modules includes:

[0053] The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship:

[0054] ;

[0055] in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms.

[0056] By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet;

[0057] The control module includes:

[0058] While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone;

[0059] Monitor the answering status of the second call;

[0060] If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module;

[0061] If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

[0062] One of the above technical solutions has the following advantages or beneficial effects:

[0063] This invention achieves initial reception and processing of alarm signals by responding to alarm operations inside the elevator car and prioritizing a first call to the duty room phone, ensuring the duty room can respond immediately. It intelligently upgrades the alarm process by determining whether the duty room phone is answered within a preset time and automatically initiating an outbound call request to the outbound service cabinet if not answered, avoiding rescue delays caused by unattended duty rooms. The outbound service cabinet dynamically selects idle target outbound call modules from a centrally deployed shared outbound call module pool based on a scheduling algorithm, achieving unified scheduling and efficient reuse of outbound call resources, significantly reducing the number of registered SIM cards required by the system, simplifying card management, and lowering operating costs. Furthermore, by controlling the target outbound call module to initiate a second call to the rescuer's mobile phone and establish a voice communication channel, it enables direct and reliable communication between trapped personnel and rescuers. While ensuring timely rescue, it fundamentally solves the resource waste, high costs, and complex maintenance problems associated with the traditional "one elevator, one card" solution. Attached Figure Description

[0064] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0065] Figure 1 This is a flowchart of an elevator remote alarm method based on an outbound call service cabinet provided in an embodiment of the present invention;

[0066] Figure 2 This is a schematic diagram of the structure of the elevator remote alarm system based on the outbound call service cabinet provided in an embodiment of the present invention;

[0067] Figure 3 This is a structural diagram of a traditional elevator system;

[0068] Figure 4 This is a schematic diagram of the elevator system structure of the elevator remote alarm method based on the outbound call service cabinet provided in an embodiment of the present invention;

[0069] Figure 5 This is a schematic diagram of the outbound call process of the elevator remote alarm method based on the outbound call service cabinet provided in an embodiment of the present invention;

[0070] Figure 6 This is a table showing the relationship between the number of elevators and the required number of outbound call modules in the elevator remote alarm method based on an outbound call service cabinet provided in this embodiment of the invention. Detailed Implementation

[0071] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0072] In this invention, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0073] The elevator five-way intercom system is an important component of elevator safety operation, used to enable emergency communication between the car, machine room and management center when a passenger is trapped in the elevator.

[0074] like Figure 3 As shown, traditional elevator remote alarm systems typically adopt a "one elevator, one module" approach, where a separate outbound call module is installed in the machine room of each elevator. This module is equipped with a registered mobile phone SIM card, used to forward alarm calls to rescue personnel's mobile phones when no one answers in the duty room. However, this approach has significant drawbacks: First, for a park or building complex with multiple elevators, it is necessary to apply for and manage SIM cards separately for each elevator, which is cumbersome and costly. Second, since elevator entrapment alarms are low-probability events, these independent modules and SIM cards are idle most of the time, resulting in a significant waste of resources. Furthermore, as the system scales up, the large number of independent modules increases the complexity of maintenance and management. Therefore, existing technologies suffer from low resource utilization, high operating costs, and poor system scalability.

[0075] Therefore, a remote elevator alarm method based on an outbound call service cabinet is proposed. This remote elevator alarm method is applied to elevator systems, such as... Figure 4 As shown, the elevator system includes a car alarm phone, a machine room voice gateway, a duty room phone, an outbound call service cabinet, and mobile phones for rescue personnel;

[0076] The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network.

[0077] like Figure 1 and Figure 4 As shown, the elevator remote alarm method includes the following steps:

[0078] S1: In response to an alarm operation inside the elevator car, initiate a first call to the duty room telephone through the voice gateway in the machine room;

[0079] It should be noted that the alarm operation inside the elevator car refers to the trapped person pressing the emergency alarm button inside the elevator, triggering the elevator's remote alarm system. The machine room voice gateway is a device whose function is to convert the analog audio signal from the car alarm phone into a digital signal and send it out through the Internet of Things (IoT) network. The duty room phone is a device installed in the elevator management center to receive calls from the car alarm phone. The function of the machine room voice gateway is to send the alarm signal from the car alarm phone to the duty room phone through the IoT network.

[0080] Understandably, in the event of an elevator entrapment incident, a rapid voice connection is established between the car alarm phone and the control room phone. The analog signal is converted to a digital signal via a voice gateway in the control room and transmitted using an IoT network to ensure signal stability and real-time performance.

[0081] S2: Determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, initiate an outbound call request to the outbound call service cabinet based on the computer room voice gateway.

[0082] It should be noted that the preset time refers to a time threshold set in the system to determine whether the telephones in the duty room answer calls in a timely manner. The outbound call service cabinet is a device that centrally manages the outbound call module; its function is to receive outbound call requests and allocate outbound call module resources.

[0083] Understandably, if no one answers the call in the duty room, the outbound call function of the service cabinet should be activated quickly to ensure that the trapped person can contact the rescuers in a timely manner. By monitoring the answering status of the first call and generating an outbound call request, the system can switch to the backup alarm path in a short time to avoid rescue delays caused by the duty room being unattended.

[0084] S3: The outbound call service cabinet responds to the outbound call request and determines an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm;

[0085] It should be noted that the outbound calling module is the core component within the outbound calling service cabinet, and its function is to initiate calls through the public telephone network. The scheduling algorithm is a dynamic resource allocation algorithm used to select the optimal resources within the outbound calling module. The SIM card is a necessary component for the outbound calling module to connect to the public telephone network. Traditional solutions require a separate SIM card for each elevator, while this invention allows for the sharing of a small number of SIM card resources through a centrally deployed outbound calling service cabinet.

[0086] It is understandable that efficient allocation of outbound call module resources in the outbound call service cabinet is crucial to ensure that alarm requirements can still be met when multiple elevators alarm simultaneously. By selecting idle outbound call modules through scheduling algorithms, the system can avoid resource conflicts and improve resource utilization.

[0087] Specifically, after receiving an outbound call request, the outbound call service cabinet queries the operating status of all outbound call modules and filters out idle modules. Then, based on a scheduling algorithm (such as selecting the module with the fewest historical call counts), it selects a target outbound call module from the idle modules. After selection, the outbound call service cabinet updates the call count record of that module for subsequent scheduling optimization. Through this centralized management and dynamic scheduling method, the system only needs to be configured with a small number of real-name SIM cards to meet the alarm needs of a large-scale elevator group.

[0088] For example, a park has 1,000 elevators. Traditional solutions require a separate SIM card for each elevator, totaling 1,000 SIM cards. However, this invention, through a centrally deployed outbound call service cabinet, only requires 24 outbound call modules (corresponding to 24 SIM cards) to meet the alarm needs of all 1,000 elevators in the park. When an elevator initiates an outbound call request, the outbound call service cabinet selects an available outbound call module (such as module B) based on a scheduling algorithm to complete the call, thus avoiding the cumbersome procedures and high costs of configuring a separate SIM card for each elevator.

[0089] S4: Control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call.

[0090] It should be noted that the public telephone network refers to mobile communication networks, such as 4G, 5G, or traditional telecommunications networks. The voice communication channel refers to the real-time voice connection between the car alarm telephone and the rescuer's mobile phone. The target outbound calling module's function is to initiate a call to the rescuer's mobile phone via the public telephone network and establish a voice communication channel after the call is answered.

[0091] Understandably, by using the target outbound calling module to transfer the alarm signal to the rescuer's mobile phone, the trapped person can communicate directly with the rescuer. By establishing a voice communication channel through the public telephone network, the system can quickly establish rescue contact even if no one answers the call in the duty room.

[0092] Preferably, step S1 includes:

[0093] In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room;

[0094] While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio.

[0095] It should be noted that the status alert signal is a signal generated by the voice gateway in the control room and sent to the car alarm phone, used to trigger the car alarm phone to play an alert audio. The alert audio is the audio content played by the car alarm phone after receiving the status alert signal, which can be used to inform trapped personnel that the system has received the alarm request and is processing it.

[0096] It is understandable that providing immediate feedback to trapped individuals in the initial stages of an elevator alarm is crucial, informing them that the system has received the alarm signal and is processing it. By sending a status alert signal and playing a notification audio message simultaneously with the initial call, the system can enhance the sense of security among trapped individuals and prevent them from panicking or engaging in dangerous behavior due to prolonged lack of feedback.

[0097] For example, in a certain industrial park, an elevator malfunctions and traps passengers. After a passenger presses the alarm button, the car alarm phone generates an alarm signal and sends it to the voice gateway in the control room. Upon receiving the signal, the voice gateway immediately initiates the first call to the control room phone and simultaneously sends a status alert signal to the car alarm phone. Upon receiving the signal, the car alarm phone plays a notification audio: "Your alarm has been received. Rescue is underway. Please remain calm." Hearing this audio reassures the trapped passenger, letting them know that the system is processing their alarm request.

[0098] Preferably, step S2 includes:

[0099] If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway;

[0100] Obtain elevator identification information and target outbound phone number from the outbound call request;

[0101] After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

[0102] It should be noted that the preset time refers to a time threshold set in the system, used to determine whether the duty room telephone answers a call in a timely manner. The outbound call request is a signal generated by the voice gateway in the equipment room when a call is not answered by the duty room telephone, used to request the outbound call service cabinet to allocate outbound call module resources. Elevator identification information refers to the unique number or code used to identify the elevator, such as "Elevator_001". The target outbound call phone number is the mobile phone number of the rescue personnel or designated contact person, used by the outbound call module to initiate a call. The reassurance signal is a signal generated by the voice gateway in the equipment room and sent to the car alarm telephone, used to trigger the car alarm telephone to play a reassurance audio message. The reassurance audio message is the audio content played by the car alarm telephone after receiving the reassurance signal, typically used to calm trapped personnel and provide information on the progress of the rescue.

[0103] Understandably, if the alarm call is not answered promptly by the telephone in the duty room, the outbound call function of the outbound call service cabinet is activated to provide psychological reassurance to the trapped personnel. By generating an outbound call request and extracting elevator identification information and the target outbound call number, the system can quickly locate the alarm elevator and initiate the outbound call operation. At the same time, it alleviates the anxiety of the trapped personnel through reassuring audio prompts, enhancing the system's reliability and user-friendly design.

[0104] For example, in an elevator malfunction in a certain industrial park, after a passenger presses the alarm button, the voice gateway in the control room initiates the first call to the duty room phone. If the duty room phone does not answer within 30 seconds, the voice gateway generates an outbound call request, which includes the elevator identification information "Elevator_001" and the target outbound phone number "13800138000". Simultaneously, the voice gateway sends a reassuring prompt signal to the elevator car alarm phone. Upon receiving the signal, the elevator car alarm phone plays a reassuring audio message: "No one is answering in the duty room at the moment, please wait. The system is contacting rescue personnel." Hearing the reassuring audio message, the trapped passenger's anxiety is relieved, and they await rescue.

[0105] Preferably, step S3 includes:

[0106] The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules;

[0107] Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module;

[0108] After identifying the target outbound calling module, update the call count record of that target outbound calling module.

[0109] It's important to note that the outbound call module's running status refers to whether the module is currently idle, i.e., whether it's executing other call tasks. The idle outbound call module list is a list generated by the outbound call service cabinet after a query, containing all currently unused outbound call modules. The scheduling algorithm refers to the logical rules used to select a target outbound call module, aiming to optimize resource allocation and ensure efficient system operation. The outbound call module with the fewest historical call counts is the module with the fewest past usages in the idle outbound call module list; selecting this module helps balance resource load. Updating call count records means that after an outbound call module is assigned, the system increments its call count record for reference by subsequent scheduling algorithms.

[0110] Understandably, optimizing the efficiency of the outbound call module through dynamic scheduling algorithms ensures the system can still operate efficiently when multiple elevators alarm simultaneously. By querying the operating status of the outbound call modules and selecting the module with the fewest historical call counts, the system can balance the load, preventing some modules from being overloaded while others are idle, thereby improving overall resource utilization. Furthermore, updating the call count records provides data support for subsequent scheduling decisions, further optimizing resource allocation.

[0111] For example, a call center in a certain park is equipped with 24 call modules. When an elevator initiates a call request, the call center checks the operating status of all modules and finds that modules A, B, and C are idle. The list of idle call modules is [A, B, C]. According to the scheduling algorithm, the system checks the historical call counts of these three modules and finds that module B has the fewest call counts (e.g., 10 times), while modules A and C have 15 and 12 times respectively. Therefore, the system selects module B as the target call module and updates its call count to 11 times. Module B then initiates a call to the rescue personnel's mobile phone through the public telephone network.

[0112] Preferably, the calculation of the number of outbound call modules includes:

[0113] The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship:

[0114] ;

[0115] in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms.

[0116] By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet.

[0117] It should be noted that the binomial distribution probability model is a statistical model used to calculate the probability of an event occurring exactly k times out of n independent events, and the preset probability of a single elevator alarm. This refers to the probability of a single elevator triggering an alarm, set based on industry experience or historical data. The system line busy probability threshold refers to the maximum allowed line busy probability of the system, used to determine the minimum number of outbound call modules required. The minimum number of outbound call modules, m, refers to the minimum number of outbound call modules that need to be configured in the outbound call service cabinet while meeting the system line busy probability threshold.

[0118] Understandably, by optimizing the number of outbound call modules through mathematical models, the system can ensure that it meets reliability requirements while minimizing resource waste. By calculating the probability of different numbers of elevators alarming simultaneously using a binomial probability model and combining it with the system line busy probability threshold, the minimum number of outbound call modules required can be scientifically determined. This not only improves resource utilization but also ensures the efficient operation of the system in large-scale elevator groups.

[0119] For example, when the alarm probability of each elevator is 0.01 and the system has 1000 elevators, if 16 outbound call modules are configured, the probability of the system line being busy is 0.026. According to the formula, we can set the desired busy probability to be less than 0.001, and calculate the minimum number of outbound call modules required based on the alarm probability of each elevator and the number of elevators in the system, n. For example, assuming the alarm probability of each elevator is still 0.01, and the system has 1000 elevators, and the desired busy probability is less than 0.0001, the system needs at least 24 outbound call modules. As the number of elevators in the system increases, the number of outbound call modules is adjusted accordingly for every additional 500 elevators. Figure 6 Based on the relationship table between the number of elevators and the required number of external call modules calculated in step S3, when the external call line is busy, the alarm probability of a single elevator can be corrected, such as from the original 0.01 to 0.02, and then the number of external call modules required by the system can be recalculated to adapt to the actual operating conditions of the system.

[0120] Preferably, step S4 includes:

[0121] While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone;

[0122] Monitor the answering status of the second call;

[0123] If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module;

[0124] If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

[0125] It should be noted that the call status signal refers to the signal sent by the system to the car alarm phone to notify the trapped personnel of the current progress of their call. The call prompt tone is the audio played by the car alarm phone after receiving the call status signal, such as "Calling rescue personnel, please wait." The busy tone signal is the signal sent by the system to the car alarm phone when the rescue personnel's mobile phone is not answering the call, to inform the trapped personnel that the current call has not been successful. The voice communication channel refers to the real-time voice connection between the car alarm phone and the rescue personnel's mobile phone, usually established through a voice gateway in the control room and a target outbound calling module. The call failure record refers to the system's record of unsuccessful call events for subsequent analysis and optimization.

[0126] Understandably, providing real-time feedback to trapped individuals during the second call process and ensuring the system can flexibly handle both successful and failed calls is crucial. By sending call status signals and prompts to the car's alarm telephone, the system can promptly inform trapped individuals of the call's progress. If the call is successful, the system establishes a voice communication channel, ensuring direct communication between trapped individuals and rescue personnel; if the call fails, the system sends a busy tone signal and records the failure event for subsequent analysis and improvement. This process enhances system reliability and user experience.

[0127] For example, if an elevator in a certain park experiences a entrapment malfunction, and a passenger presses the alarm button, the system initiates a call to the rescuer's mobile phone via the target outbound call module. Simultaneously, the system sends a call status signal to the elevator's alarm phone, which plays a prompt: "Calling rescue personnel, please wait." The rescuer's mobile phone begins ringing, and the system monitors the call status in real time. If the rescuer answers, a voice communication channel is established, and the passenger and rescuer begin speaking. If the rescuer does not answer, the system sends a busy tone signal to the elevator's alarm phone, which plays a prompt: "Rescue personnel are temporarily unavailable, please try again later." The system also records this failed call for subsequent analysis of the cause and optimization of the call strategy.

[0128] An elevator remote alarm system based on an outbound call service cabinet is provided. The elevator remote alarm system is applied to the elevator system, which includes a car alarm telephone, a machine room voice gateway, a duty room telephone, an outbound call service cabinet, and a mobile phone for rescue personnel.

[0129] The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network.

[0130] The elevator remote alarm system includes:

[0131] The alarm triggering module is used to respond to alarm operations inside the elevator car and initiate a first call to the duty room telephone through the voice gateway in the machine room;

[0132] The call determination module is used to determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, it initiates an outbound call request to the outbound call service cabinet based on the computer room voice gateway.

[0133] The scheduling selection module is used by the outbound call service cabinet to determine an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm in response to the outbound call request.

[0134] The control module is used to control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and to establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call.

[0135] Preferably, the alarm triggering module includes:

[0136] In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room;

[0137] While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio.

[0138] The call determination module includes:

[0139] If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway;

[0140] Obtain elevator identification information and target outbound phone number from the outbound call request;

[0141] After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

[0142] Preferably, the scheduling selection module includes:

[0143] The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules;

[0144] Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module;

[0145] After identifying the target outbound calling module, update the call count record of that target outbound calling module.

[0146] Preferably, the calculation of the number of outbound call modules includes:

[0147] The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship:

[0148] ;

[0149] in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms.

[0150] By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet;

[0151] The control module includes:

[0152] While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone;

[0153] Monitor the answering status of the second call;

[0154] If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module;

[0155] If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

[0156] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0157] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A remote elevator alarm method based on an outbound call service cabinet, characterized in that, The elevator remote alarm method is applied to an elevator system, which includes a car alarm phone, a machine room voice gateway, a duty room phone, an outbound call service cabinet, and a mobile phone for rescue personnel. The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network. The elevator remote alarm method includes the following steps: S1: In response to an alarm operation inside the elevator car, initiate a first call to the duty room telephone through the voice gateway in the machine room; S2: Determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, initiate an outbound call request to the outbound call service cabinet based on the computer room voice gateway. S3: The outbound call service cabinet responds to the outbound call request and determines an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm; S4: Control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call; The calculation of the number of outbound call modules includes: The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship: ； in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms. By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet.

2. The elevator remote alarm method based on an outbound call service cabinet according to claim 1, characterized in that, Step S1 includes: In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room; While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio.

3. The elevator remote alarm method based on an outbound call service cabinet according to claim 1, characterized in that, Step S2 includes: If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway; Obtain elevator identification information and target outbound phone number from the outbound call request; After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

4. The elevator remote alarm method based on an outbound call service cabinet according to claim 1, characterized in that, Step S3 includes: The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules; Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module; After identifying the target outbound calling module, update the call count record of that target outbound calling module.

5. The elevator remote alarm method based on an outbound call service cabinet according to claim 1, characterized in that, Step S4 includes: While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone; Monitor the answering status of the second call; If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module; If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

6. A remote elevator alarm system based on an outbound call service cabinet, characterized in that, The elevator remote alarm system is applied to the elevator system, which includes a car alarm telephone, a machine room voice gateway, a duty room telephone, an outbound call service cabinet, and mobile phones for rescue personnel. The car alarm phone is installed inside the elevator car. The voice gateway in the machine room is connected to the car alarm phone. The duty room phone is connected to the voice gateway in the machine room through the Internet of Things (IoT) network. The outbound call service cabinet is connected to the voice gateway in the machine room through the IoT network. The outbound call service cabinet includes several outbound call modules. The outbound call modules are connected to the mobile phones of rescue personnel through the public telephone network. The elevator remote alarm system includes: The alarm triggering module is used to respond to alarm operations inside the elevator car and initiate a first call to the duty room telephone through the voice gateway in the machine room; The call determination module is used to determine whether the first call is answered by the duty room phone within a preset time. Based on the determination result, it initiates an outbound call request to the outbound call service cabinet based on the computer room voice gateway. The scheduling selection module is used by the outbound call service cabinet to determine an idle target outbound call module from the plurality of outbound call modules based on a scheduling algorithm in response to the outbound call request. The control module is used to control the target outbound call module to initiate a second call to the rescuer's mobile phone through the public telephone network, and to establish a voice communication channel between the car alarm phone and the rescuer's mobile phone based on the answer result of the second call; The calculation of the number of outbound call modules includes: The minimum number of outbound call modules required by the system is calculated based on a binomial probability model. The binomial probability model satisfies the following relationship: ； in, This indicates the total number of elevators connected to the elevator system. This represents the preset probability of an alarm occurring in a single elevator. This indicates the number of elevators in the elevator system that are simultaneously triggering alarms. By calculating the probability of different numbers of elevators alarming simultaneously. Based on the set system line busy probability threshold, the minimum number of outbound call modules m that meets the probability threshold requirement is determined, where m represents the number of outbound call modules configured in the outbound call service cabinet.

7. The elevator remote alarm system based on an outbound call service cabinet according to claim 6, characterized in that, The alarm triggering module includes: In response to an alarm operation inside the elevator car, a first call is initiated to the duty room telephone via the voice gateway in the machine room; While initiating the first call, a status prompt signal is sent to the car alarm phone, causing the car alarm phone to play a prompt audio. The call determination module includes: If it is determined that the first call is not answered by the duty room phone within a preset time, the outbound call request is generated through the computer room voice gateway; Obtain elevator identification information and target outbound phone number from the outbound call request; After generating the outbound call request, a reassurance signal is sent to the car alarm phone, causing the car alarm phone to play a reassurance audio message.

8. The elevator remote alarm system based on an outbound call service cabinet according to claim 6, characterized in that, The scheduling selection module includes: The outbound call service cabinet queries the operating status of the plurality of outbound call modules in sequence to obtain a list of idle outbound call modules; Based on the scheduling algorithm, the outbound call module with the fewest historical calls is selected from the list of idle outbound call modules as the target outbound call module; After identifying the target outbound calling module, update the call count record of that target outbound calling module.

9. The elevator remote alarm system based on an outbound call service cabinet according to claim 6, characterized in that, The control module includes: While controlling the target outbound call module to initiate the second call, a call status signal is sent to the car alarm phone, causing the car alarm phone to play a call prompt tone; Monitor the answering status of the second call; If the second call is answered, a voice communication channel is established between the car alarm phone and the rescuer's mobile phone through the computer room voice gateway and the target outbound call module; If the second call is not answered, a busy tone signal is sent to the car alarm telephone, and the call is recorded as failed.

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