Signal transmission method and device in elevator, storage medium and electronic equipment

Abstract

The invention discloses a signal transmission method and device in an elevator, a storage medium and electronic equipment. The method comprises the steps that a signal in an elevator shaft is collected through first equipment; under the condition that the intensity of the collected signal is smaller than the preset intensity, signal amplification is conducted on the signal through first equipment, a target signal is obtained, and signal amplification is used for compensating attenuation of the signal in the elevator shaft; the target signal is transmitted to target equipment and / or a target model through second equipment, the second equipment is deployed in the elevator, and the target equipment at least comprises image acquisition equipment, a display screen, a loudspeaker and communication equipment in the elevator; the target model is a neural network model which is obtained through training based on historical operation data and elevator fault data of the elevator and is used for determining the safety level of the elevator. The technical problems that in the prior art, an elevator is low in signal transmission strength and poor in communication effect are solved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a signal transmission method, device, storage medium and electronic equipment in an elevator. Background Art

[0002] With the accelerating pace of global urbanization and the increasing number of high-rise buildings, elevators have become an indispensable vertical transportation facility in people's daily lives. However, signal transmission issues are particularly prominent in elevator operations. As an enclosed space, the elevator shaft is subject to signal attenuation due to both natural and human factors, thus affecting the communication quality between the elevator interior and the outside world.

[0003] Especially in emergency situations, such as an elevator malfunction that traps passengers, this inefficient communication mechanism delays rescue responses and exacerbates dangerous situations. While existing elevator monitoring systems can provide video surveillance within a certain range, their limited signal transmission capabilities fail to fully guarantee real-time monitoring of the elevator's operating status or ensure the rapid and accurate transmission of information at critical moments.

[0004] There is currently no effective solution to the technical problems of low signal transmission strength and poor communication quality in elevators. Summary of the Invention

[0005] The present application provides a signal transmission method, device, storage medium and electronic equipment in an elevator to at least solve the technical problems of low signal transmission strength and poor communication effect in elevators in the prior art.

[0006] According to one aspect of the present application, a signal transmission method in an elevator is provided, comprising: collecting a signal in an elevator shaft by a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference; when the intensity of the collected signal is less than a preset intensity, amplifying the signal by the first device to obtain a target signal, wherein the signal amplification is used to compensate for the attenuation of the signal in the elevator shaft; transmitting the target signal to a target device and / or a target model by a second device, wherein the second device is deployed inside the elevator, the target device includes at least an image acquisition device, a display screen, a speaker, and a communication device in the elevator, and the target model is a neural network model for determining the safety level of the elevator obtained by training based on the historical operation data and elevator fault data of the elevator.

[0007] Optionally, before collecting the signal in the elevator shaft through the first device, the signal transmission method in the elevator also includes: obtaining elevator data collected by L sensors, wherein the elevator data is used to characterize the real-time operation information of the elevator, L is a positive integer, and the L sensors include at least an acceleration sensor, a temperature sensor, a humidity sensor, an infrared sensor, and a sound sensor corresponding to the elevator; encoding the elevator data to obtain a signal.

[0008] Optionally, after transmitting the target signal to the target model through the second device, the signal transmission method in the elevator also includes: determining the safety level of the elevator based on the signal through the target model; when the safety level of the elevator is less than or equal to the preset level, generating early warning information, wherein the early warning information includes at least the potential fault type of the elevator and the rescue measures corresponding to the fault type; and transmitting the early warning information as a new signal to the first device.

[0009] Optionally, determining the safety level of an elevator based on a signal through a target model includes: preprocessing the signal through the target model, wherein the preprocessing is used to filter redundant signals in the signal; performing feature extraction on the preprocessed signal to obtain M elevator features, wherein M is a positive integer, and the M elevator features are used to characterize at least the position, speed, environmental parameters, load, and mechanical component status of the elevator; performing weighted summation of preset scores corresponding to each of the M elevator features to obtain a target score for the elevator; and determining the safety level of the elevator based on the target score.

[0010] Optionally, before transmitting the target signal to the target device through the second device, the signal transmission method in the elevator also includes: obtaining the signal strength of N positions corresponding to the target device, wherein the N positions are positions inside the target device where the signal needs to be received, and N is a positive integer; taking the position among the N positions where the signal strength is less than a preset strength as the target position, wherein the target position is the installation position of the second device in the target device; determining the target direction based on the internal structure and device material of the target device, wherein the target direction is the installation direction of the second device in the target device; and deploying the second device to the target device based on the target position and direction.

[0011] Optionally, after transmitting the target signal to the target device through the second device, the signal transmission method in the elevator includes: acquiring a target image through an image acquisition device, wherein the target image includes at least information of passengers trapped in the elevator; generating a distress signal based on the target image, wherein the distress signal is used to characterize the emotional state and health status of the passengers trapped in the elevator; transmitting the distress signal to a communication device; and transmitting the distress signal to the elevator operation and maintenance personnel through the communication device.

[0012] Optionally, after the target signal is transmitted to the target device through the second device, it includes: when the target device is a display screen, visually displaying the information carried by the target signal through the display screen; when the target device is a speaker, verbally broadcasting the information carried by the target signal through the speaker.

[0013] According to another aspect of the present application, a signal transmission device in an elevator is provided, including: a signal acquisition unit, used to acquire signals in the elevator shaft through a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference; a signal amplification unit, used to amplify the signal through the first device when the intensity of the acquired signal is less than a preset intensity to obtain a target signal, wherein the signal amplification is used to compensate for the attenuation of the signal in the elevator shaft; a first transmission unit, used to transmit the target signal to a target device and / or a target model through a second device, wherein the second device is deployed inside the elevator, the target device includes at least an image acquisition device, a display screen, a speaker and a communication device in the elevator, and the target model is a neural network model for determining the safety level of the elevator obtained by training based on the historical operation data and elevator fault data of the elevator.

[0014] According to another aspect of the present application, a computer program product is further provided. The computer program product stores a computer program, wherein when the computer program is run, the computer program product is controlled to execute any one of the above-mentioned signal transmission methods in an elevator.

[0015] According to another aspect of the present application, an electronic device is further provided, wherein the electronic device includes one or more processors and a memory, the memory being used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement any one of the above-mentioned signal transmission methods in an elevator.

[0016] In the present application, a signal in an elevator shaft is first collected by a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference. Thereafter, when the intensity of the collected signal is less than a preset intensity, the signal is amplified by the first device to obtain a target signal, wherein the signal amplification is used to compensate for the attenuation of the signal in the elevator shaft. Then, the target signal is transmitted to a target device and / or a target model by a second device, wherein the second device is deployed inside the elevator, and the target device includes at least an image acquisition device, a display screen, a speaker, and a communication device in the elevator. The target model is a neural network model for determining the safety level of the elevator, which is obtained by training based on the historical operation data and elevator fault data of the elevator.

[0017] From the above content, it can be seen that the present application achieves the purpose of amplifying the signal by the first device when the signal strength to be transmitted is weak by pre-deploying the first device in the elevator shaft and deploying the second device inside the elevator, thereby compensating for the attenuation of the signal to be transmitted in the elevator shaft and improving the signal strength and propagation effect. Afterwards, the present application receives the amplified signal by the second device installed inside the elevator, further improving the success rate of transmitting the amplified signal to the target terminal (i.e., the target device and the target model), thereby achieving the technical effect of improving the communication effect in the elevator, and thus solving the technical problem of low signal transmission strength and poor communication effect in the elevator in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a flow chart of an optional signal transmission method in an elevator according to an embodiment of the present application;

[0020] Figure 2 is a schematic diagram of an optional signal transmission device in an elevator according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of an optional electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] It should also be noted that the relevant information (including but not limited to information for display and analysis) and data (including but not limited to data carried by signals transmitted in the elevator) involved in this application are all information and data authorized by the user or fully authorized by all parties. For example, an interface is set up between this system and the relevant user or organization. Before obtaining relevant information, it is necessary to send an acquisition request to the aforementioned user or organization through the interface, and obtain the relevant information after receiving the consent information fed back by the aforementioned user or organization.

[0025] In addition, the collection, storage, use, processing, transmission, provision, disclosure and application of the relevant information and data involved in this application comply with the relevant laws, regulations and standards of the relevant regions, and necessary confidentiality measures have been taken, and do not violate public order and good morals. In addition, this application provides corresponding operation entrances for users to choose to agree to authorization or refuse authorization. If the user chooses to refuse authorization, he / she will enter the corresponding expert decision-making process.

[0026] According to an embodiment of the present application, an embodiment of a signal transmission method in an elevator is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown.

[0027] The present application provides a signal transmission system in an elevator (hereinafter referred to as a transmission system) for executing the signal transmission method in an elevator in the present application. Figure 1 is a flow chart of an optional signal transmission method in an elevator according to an embodiment of the present application, such as Figure 1 As shown, the method includes the following steps:

[0028] Step S101: collecting signals in the elevator shaft through a first device.

[0029] In step S101, a first device is deployed at a preset location in an elevator shaft that is not subject to electromagnetic interference.

[0030] Optionally, the transmission system selects a well-ventilated location in the elevator shaft that is away from electromagnetic interference as the installation location of the first device, thereby reserving sufficient operating space for the heat dissipation and maintenance needs of the first device, thereby improving the stability of the first device during operation.

[0031] Optionally, the first device is responsible for collecting data carried by the signal for characterizing the operating parameters of the elevator, including but not limited to video data collected by the image acquisition device, temperature and humidity collected by the environmental sensor, and audio data collected by the sound sensor. The above data will serve as the original input of the target model, thereby achieving the purpose of evaluating the operating status and health status of the elevator.

[0032] Step S102: When the intensity of the collected signal is less than a preset intensity, the signal is amplified by the first device to obtain a target signal.

[0033] In step S102, signal amplification is used to compensate for signal attenuation in the elevator shaft.

[0034] Optionally, the first device is preferably configured as a high-performance signal amplification device having the following characteristics:

[0035] (1) High gain: It can improve signal strength and ensure the stability of signal transmission in closed environments such as elevator shafts.

[0036] (2) Low noise: While amplifying the signal, it can reduce noise interference and ensure signal clarity.

[0037] (3) Broadband: supports signal transmission at multiple frequencies and can adapt to different communication needs.

[0038] (4) High reliability: It can work stably for a certain period of time in harsh environments, thus ensuring the reliability of the transmission system operation.

[0039] Optionally, the above-mentioned signal amplification device adopts a closed-loop feedback control system and a built-in dynamic gain adjustment chip, which supports automatic adjustment of the signal within a dynamic range of -20dB to +40dB. When the signal strength fluctuation exceeds ±3dB, the signal amplification device can complete the signal gain compensation within 50ms.

[0040] Optionally, the signal amplification device adopts a redundant power supply module design, supports hot-swappable replacement, and has undergone high-temperature aging testing. The test results show that the signal amplification device can operate continuously for 2000 hours without performance degradation, thereby ensuring the reliability of the transmission system's compensation gain for the signal.

[0041] Optionally, when the transmission system detects that the collected signal strength is lower than a preset strength, the signal amplification function built into the first device will be activated, and the signal will be amplified by the first device, thereby compensating for the natural attenuation of the signal in the elevator shaft, ensuring that the amplified signal can maintain sufficient strength and clarity even in the closed and complex environment of the elevator shaft, thereby improving the propagation efficiency of the amplified signal and reducing the probability of communication data loss or communication delay due to signal attenuation.

[0042] Step S103: transmitting the target signal to the target device and / or target model via the second device.

[0043] In step S103, the second device is deployed inside the elevator. The target device includes at least the image acquisition device, display screen, speaker and communication equipment in the elevator. The target model is a neural network model trained based on the historical operation data and fault data of the elevator for determining the safety level of the elevator.

[0044] Optionally, the second device is preferably configured as a signal receiving antenna, and the antenna has the following characteristics:

[0045] (1) High sensitivity: Able to receive amplified signals and ensure the stability of signal transmission.

[0046] (2) Miniaturization: It is compact and easy to install on the target terminal (i.e., target device and target model) without affecting the normal use of the target terminal.

[0047] (3) Anti-interference: It has good anti-interference ability and can work normally in complex electromagnetic environments.

[0048] Optionally, the second device can adopt a dual-polarization MIMO (Multiple-Input Multiple-Output) antenna array, the operating frequency band of which is 700MHz to 2.6GHz, and the adjacent channel suppression ratio is greater than or equal to 35dB. It can eliminate co-channel interference based on an adaptive beamforming algorithm. In addition, the antenna array integrates a time domain equalizer and a cyclic prefix, and realizes coherent combining of multipath signals through the receiver, thereby achieving the purpose of controlling the bit error rate to be below 10^-6.

[0049] From the above content, it can be seen that the present application achieves the purpose of amplifying the signal by the first device when the signal strength to be transmitted is weak by pre-deploying the first device in the elevator shaft and deploying the second device inside the elevator, thereby compensating for the attenuation of the signal to be transmitted in the elevator shaft and improving the signal strength and propagation effect. Afterwards, the present application receives the amplified signal by the second device installed inside the elevator, further improving the success rate of transmitting the amplified signal to the target terminal (i.e., the target device and the target model), thereby achieving the technical effect of improving the communication effect in the elevator, and thus solving the technical problem of low signal transmission strength and poor communication effect in the elevator in the prior art.

[0050] In an optional embodiment, the transmission system first obtains elevator data collected by L sensors, where the elevator data is used to represent the real-time operation information of the elevator, L is a positive integer, and the L sensors include at least an acceleration sensor, a temperature sensor, a humidity sensor, an infrared sensor, and a sound sensor corresponding to the elevator. Then, the transmission system encodes the elevator data to obtain a signal.

[0051] For example, an acceleration sensor is installed on the top of an elevator car, with a range of ±16g and a sampling frequency of 1kHz; a humidity sensor is installed on the top of an elevator car, with a range of 0-100% RH and a sampling frequency of 1Hz; and a sound sensor is installed on the top of an elevator car, with a range of 20Hz-20kHz and a sampling frequency of 48kHz.

[0052] Optionally, the transmission system adopts the IEEE 1588 protocol (a protocol for providing precise time synchronization in a distributed network environment) to ensure that the clock deviation of each sensor is less than 1μs, and the sensor data timestamps are aligned through the CAN (Controller Area Network) bus.

[0053] Optionally, the acceleration sensor is used to monitor the smoothness of the elevator operation, the temperature sensor is used to monitor the temperature inside the elevator, the humidity sensor is used to monitor the humidity inside the elevator, the infrared sensor is used to sense the passengers in the elevator, and the sound sensor is used to collect sound information inside the elevator, such as the passengers' signals for help.

[0054] Optionally, the collected elevator data includes:

[0055] (1) Location data: The elevator’s current floor and direction of travel are monitored through a position sensor or built-in positioning system.

[0056] (2) Speed ​​and acceleration data: Use acceleration sensors to monitor the elevator's operating speed and acceleration to assess whether the elevator is running smoothly and whether there is abnormal acceleration or deceleration.

[0057] (3) Environmental parameters: including temperature, humidity, etc. Environmental sensors monitor the environmental conditions inside the elevator to ensure the normal operation of electronic equipment and the comfort of passengers.

[0058] (4) Load data: The elevator load is monitored through pressure sensors or weight sensors to determine whether the elevator is overloaded and whether the load is evenly distributed.

[0059] (5) Door system data: used to reflect the opening and closing status of the elevator door and door system failures during operation.

[0060] (6) Control system data: used to reflect the operating status of the elevator control system, including the completeness of the control signal and the system response time.

[0061] (7) Mechanical component data: including the degree of wear of key mechanical components of the elevator (such as motor, traction wheel and wire rope).

[0062] (8) Power system data: including voltage, current and power.

[0063] (9) Fault log: used to record fault codes and operation logs generated during elevator operation.

[0064] In the above embodiment, the transmission system monitors the operating status of the elevator from multiple dimensions in real time and obtains multi-dimensional information during the elevator operation in real time, thereby ensuring the comprehensiveness and accuracy of the collected elevator data. Afterwards, the transmission system encodes the elevator data and converts the elevator data into digital signals, thereby improving the transmission efficiency of the elevator data.

[0065] Furthermore, the transmission system can also transmit the signal obtained by encoding the elevator data through the first device, ensuring that the elevator data can still be successfully transmitted in closed environments where signals are easily attenuated and interfered with, thereby providing strong technical support for elevator safety management. Whether during daily operation monitoring or in emergency situations, the encoded elevator data can be quickly and stably transmitted to the target model, thereby improving the timeliness and effectiveness of elevator fault warnings, achieving the dual technical benefits of enhancing elevator safety and user experience.

[0066] In an optional embodiment, the transmission system first determines the safety level of the elevator based on the signal through a target model. Then, when the safety level of the elevator is less than or equal to a preset level, the transmission system generates an early warning message, wherein the early warning information includes at least the potential fault type of the elevator and the rescue measures corresponding to the fault type. Then, the transmission system transmits the early warning information as a new signal to the first device.

[0067] Optionally, after the signal carrying elevator data information is input into the target model, the target model analyzes the signal characteristics through a preset algorithm, evaluates the current safety status of the elevator, and quantifies the safety status into a safety level. This process enables operation and maintenance personnel to intuitively understand the health status of the elevator, thereby effectively identifying potential safety hazards.

[0068] Optionally, the above-mentioned warning information not only includes the potential fault types of the elevator, but also provides rescue measures for each fault, thereby ensuring that the operation and maintenance personnel are reminded to take relevant measures in the early stage of possible elevator failure, thereby improving the safety of the elevator.

[0069] Optionally, the warning information is encoded into a new signal and then transmitted back to the first device. This first device not only receives the warning signal but also ensures stable transmission of the warning signal (i.e., the signal encoded with the warning information) within the elevator shaft. This closed-loop signal transmission mechanism allows warning information to be quickly and accurately transmitted from the target model to the elevator interior, thereby providing timely notification to passengers.

[0070] Optionally, the transmission priority of the early warning signal is higher than that of the regular signal.

[0071] In the above embodiment, the transmission system uses the intelligent analysis capability of the target model to perform real-time monitoring and safety assessment of the elevator operating status. When a potential fault is detected, it can quickly generate early warning information containing specific fault information and rescue suggestions. Through the optimized signal transmission process, it ensures the rapid and accurate dissemination of early warning information, thereby improving the safety performance of the elevator and reducing the probability of elevator accidents.

[0072] In an optional embodiment, the transmission system first preprocesses the signal through a target model, wherein the preprocessing is used to filter out redundant signals in the signal. Then, the transmission system performs feature extraction on the preprocessed signal to obtain M elevator features, wherein M is a positive integer, and the M elevator features are used to characterize at least the position, speed, environmental parameters, load, and mechanical component status of the elevator. Then, the transmission system performs a weighted summation of preset scores corresponding to each of the M elevator features to obtain a target score for the elevator. Finally, the transmission system determines the safety level of the elevator based on the target score.

[0073] Optionally, the transmission system can also use signal processing technology and machine learning algorithms to analyze and process the collected elevator data to identify elevator operating anomalies and further assess the health of the elevator. The specific steps include:

[0074] (1) Data preprocessing: Filter and denoise the original elevator data to remove invalid information and improve data quality.

[0075] (2) Feature extraction: Extract key features from the preprocessed data, such as vibration frequency, temperature change, and humidity change.

[0076] (3) Pattern recognition: Use machine learning algorithms such as support vector machines and neural network models to classify and identify the extracted elevator features.

[0077] (4) Health assessment: Based on the classification and recognition results obtained in the previous step, the overall health status of the elevator is assessed and a health report corresponding to the elevator is generated.

[0078] Optionally, redundant signals include noise or repeated data that is irrelevant to the elevator status. Redundant signals do not carry valid information and will interfere with the judgment of the model. Traditional systems achieve the purpose of removing redundant information in the signal by preprocessing the signal, thereby improving the efficiency and accuracy of subsequent analysis of the target model.

[0079] In the above embodiment, the transmission system is able to achieve a comprehensive and intelligent analysis of the elevator operating status, effectively filter out redundant signals including interference information, and improve the accuracy of the extracted elevator features. Afterwards, the transmission system obtains a target score reflecting the overall safety status through weighted summation, and finally determines the safety level based on the score. This provides an accurate and efficient elevator safety level assessment method, providing passengers with a safer and more reliable riding experience, while also providing strong technical support for elevator operators and maintenance personnel, reducing unplanned downtime, lowering maintenance costs, and extending the service life of the elevator.

[0080] In an optional embodiment, the transmission system first obtains the signal strength of N positions corresponding to the target device, wherein the N positions are positions inside the target device where signals need to be received, and N is a positive integer. Then, the transmission system takes the position among the N positions where the signal strength is less than a preset strength as the target position, wherein the target position is the installation position of the second device in the target device. Then, the transmission system determines the target direction based on the internal structure and device material of the target device, wherein the target direction is the installation direction of the second device in the target device. Finally, the transmission system deploys the second device to the target device based on the target position and direction.

[0081] Optionally, when installing the second device inside the target device, the transmission system not only takes the position where the signal transmission strength inside the target device is insufficient as the installation position, but also takes into account the impact of the internal structure and material of the target device on the signal during actual installation. Through professional signal propagation analysis, the direction with the smoothest signal propagation and the least interference is taken as the actual safe direction of the second device, thereby improving the signal propagation quality, reducing signal blind spots, and thereby improving the reliability of the elevator's internal communication system, strengthening the elevator's monitoring capabilities and response speed in emergency situations.

[0082] In an optional embodiment, the transmission system first obtains a target image through an image acquisition device, wherein the target image includes at least information of passengers trapped in the elevator. Then, the transmission system generates a distress signal based on the target image, wherein the distress signal is used to characterize the emotional state and health status of the passengers trapped in the elevator. Then, the transmission system transmits the distress signal to the communication device. Finally, the transmission system transmits the distress signal to the elevator operation and maintenance personnel through the communication device.

[0083] Optionally, the image acquisition device generally refers to a high-definition camera installed inside the elevator, which is used to capture the scene inside the elevator in real time. The camera is installed on the top of the elevator car with a sampling frequency of 30fps. In an emergency (such as a passenger being trapped), the transmission system will be automatically triggered (or manually triggered by a passenger) to command the image acquisition device to capture a target image containing passenger information. The target image can clearly show the number and location of trapped passengers in the elevator, as well as the facial expressions and physical conditions of the corresponding passengers, so as to subsequently analyze the passengers' emotional state and health status and obtain a distress signal.

[0084] Optionally, the communication equipment inside the elevator sends the distress signal to the elevator's operation and maintenance personnel through a wireless communication module (for example, 4G / 5G, Wi-Fi or a dedicated wireless communication network). Through the real-time transmission of the distress signal, the operation and maintenance personnel can promptly understand the specific situation of the passengers in the elevator, thereby quickly initiating the corresponding rescue procedures, dispatching rescue personnel and preparing necessary rescue supplies, thereby enhancing the passengers' sense of security and rescue effectiveness in emergency situations.

[0085] In an optional embodiment, when the target device is a display screen, the transmission system visually displays the information carried by the target signal through the display screen; when the target device is a speaker, the transmission system verbally broadcasts the information carried by the target signal through the speaker.

[0086] Optionally, the display screen in the elevator can not only display the elevator floor information, so that passengers can understand the operating status of the elevator, but also display advertising information, thereby increasing the commercial value of the elevator. Furthermore, the elevator display screen can also display the rescue measures and rescue progress corresponding to the elevator failure in an emergency, thereby helping passengers understand the rescue dynamics, and then they can stay calm, increase their confidence, and cooperate with the operation and maintenance personnel in the rescue work.

[0087] Optionally, the transmission system forms a comprehensive information transmission network by combining the visual display of the display screen and the verbal broadcast of the loudspeaker, which can meet the information acquisition needs of different passengers. Especially in emergency situations, this multi-channel information communication mechanism improves the response speed of passenger rescue and passenger safety.

[0088] In summary, the effects achieved by the technical solution of this application are as follows:

[0089] (1) Improve communication quality: By installing signal amplification equipment in the elevator machine room and signal receiving antennas on the equipment inside the elevator, the signal strength and stability of the elevator's internal communication system are improved, solving the problem of weak signals in closed environments of traditional systems. This not only improves the monitoring effect of the elevator, but also ensures that information can be quickly and accurately transmitted to rescue personnel in an emergency.

[0090] (2) Enhanced emergency response: In emergency situations, such as when passengers are trapped, warning information can be quickly sent to rescue personnel through the amplified signal channel, shortening the rescue response time and improving the rescue efficiency. Furthermore, rescue personnel can obtain the specific situation of the passengers in a timely manner based on the warning information and take effective rescue measures to ensure the safety of the passengers.

[0091] (3) Comprehensive monitoring and early warning: It integrates multiple functions such as video monitoring, environmental perception and intelligent analysis, and can comprehensively monitor the operating status of elevators, timely discover and warn of potential elevator safety hazards, and conduct real-time analysis and pattern recognition of elevator data through target models, which can detect potential elevator failures in advance, thereby reducing the unplanned downtime of elevators, reducing maintenance costs, and extending the service life of elevators.

[0092] (4) Optimize user experience: The display screen inside the elevator provides a user-friendly interface design. It not only provides daily information services, but also provides passengers with necessary rescue guidance and support in emergency situations, thereby enhancing passengers' sense of security and satisfaction. Through the combination of display screen and voice broadcast, passengers can understand the elevator's operating status and rescue progress from multiple dimensions, thereby helping passengers stay calm and cooperate with rescue work.

[0093] (5) Improve economic benefits: This application not only improves the safety performance and service level of the elevator, but also reduces unplanned downtime, reduces maintenance costs, and extends the service life of the elevator by discovering and handling potential faults in advance.

[0094] In the present application, a signal in an elevator shaft is first collected by a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference. Thereafter, when the intensity of the collected signal is less than a preset intensity, the signal is amplified by the first device to obtain a target signal, wherein the signal amplification is used to compensate for the attenuation of the signal in the elevator shaft. Then, the target signal is transmitted to a target device and / or a target model by a second device, wherein the second device is deployed inside the elevator, and the target device includes at least an image acquisition device, a display screen, a speaker, and a communication device in the elevator. The target model is a neural network model for determining the safety level of the elevator, which is obtained by training based on the historical operation data and elevator fault data of the elevator.

[0095] From the above content, it can be seen that the present application achieves the purpose of amplifying the signal by the first device when the signal strength to be transmitted is weak by pre-deploying the first device in the elevator shaft and deploying the second device inside the elevator, thereby compensating for the attenuation of the signal to be transmitted in the elevator shaft and improving the signal strength and propagation effect. Afterwards, the present application receives the amplified signal by the second device installed inside the elevator, further improving the success rate of transmitting the amplified signal to the target terminal (i.e., the target device and the target model), thereby achieving the technical effect of improving the communication effect in the elevator, and thus solving the technical problem of low signal transmission strength and poor communication effect in the elevator in the prior art.

[0096] According to another aspect of the embodiment of the present application, a signal transmission device in an elevator is further provided. Figure 2 is a schematic diagram of an optional signal transmission device in an elevator according to an embodiment of the present application, such as Figure 2 As shown, the signal transmission device in the elevator includes: a signal acquisition unit 201, a signal amplification unit 202 and a first transmission unit 203.

[0097] Optionally, a signal acquisition unit is used to collect signals in the elevator shaft through a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference; a signal amplification unit is used to amplify the signal through the first device when the intensity of the collected signal is less than a preset intensity to obtain a target signal, wherein the signal amplification is used to compensate for the attenuation of the signal in the elevator shaft; a first transmission unit is used to transmit the target signal to a target device and / or a target model through a second device, wherein the second device is deployed inside the elevator, the target device includes at least an image acquisition device, a display screen, a speaker and a communication device in the elevator, and the target model is a neural network model for determining the safety level of the elevator obtained by training based on the historical operation data and elevator fault data of the elevator.

[0098] In an optional embodiment, the signal transmission device in the elevator further includes: a first acquisition unit and an encoding unit.

[0099] Optionally, the first acquisition unit is used to acquire elevator data collected by L sensors, wherein the elevator data is used to represent the real-time operation information of the elevator, L is a positive integer, and the L sensors include at least an acceleration sensor, a temperature sensor, a humidity sensor, an infrared sensor, and a sound sensor corresponding to the elevator; the encoding unit is used to encode the elevator data to obtain a signal.

[0100] In an optional embodiment, the signal transmission device in the elevator further includes: a first determination unit, a first generation unit and a second transmission unit.

[0101] Optionally, the first determination unit is used to determine the safety level of the elevator based on the signal through a target model; the first generation unit is used to generate early warning information when the safety level of the elevator is less than or equal to a preset level, wherein the early warning information includes at least the potential fault type of the elevator and the rescue measures corresponding to the fault type; the second transmission unit is used to transmit the early warning information as a new signal to the first device.

[0102] In an optional embodiment, the first determination unit includes: a preprocessing subunit, a feature extraction subunit, a weighted summation subunit, and a security level determination subunit.

[0103] Optionally, a preprocessing subunit is used to preprocess the signal through a target model, wherein the preprocessing is used to filter redundant signals in the signal; a feature extraction subunit is used to extract features from the preprocessed signal to obtain M elevator features, wherein M is a positive integer, and the M elevator features are used to characterize at least the position, speed, environmental parameters, load and mechanical component status of the elevator; a weighted summation subunit is used to perform weighted summation on the preset scores corresponding to each of the M elevator features to obtain the target score of the elevator; and a safety level determination subunit is used to determine the safety level of the elevator based on the target score.

[0104] In an optional embodiment, the signal transmission device in the elevator further includes: a second acquiring unit, a second determining unit, a third determining unit, and a deploying unit.

[0105] Optionally, a second acquisition unit is used to obtain the signal strength of N positions corresponding to the target device, wherein the N positions are positions inside the target device where signals need to be received, and N is a positive integer; a second determination unit is used to take the position among the N positions where the signal strength is less than a preset strength as the target position, wherein the target position is the installation position of the second device in the target device; a third determination unit is used to determine the target direction based on the internal structure and device material of the target device, wherein the target direction is the installation direction of the second device in the target device; a deployment unit is used to deploy the second device to the target device based on the target position and direction.

[0106] In an optional embodiment, the signal transmission device in the elevator further includes: a third acquisition unit, a second generation unit, a third transmission unit, and a fourth transmission unit.

[0107] Optionally, the third acquisition unit is used to acquire a target image through an image acquisition device, wherein the target image at least includes information of passengers trapped in the elevator; the second generation unit is used to generate a distress signal based on the target image, wherein the distress signal is used to characterize the emotional state and health status of the passengers trapped in the elevator; the third transmission unit is used to transmit the distress signal to the communication device; and the fourth transmission unit is used to transmit the distress signal to the elevator operation and maintenance personnel through the communication device.

[0108] In an optional embodiment, the signal transmission device in the elevator further includes: a display unit and a broadcast unit.

[0109] Optionally, the display unit is used to visually display the information carried by the target signal through a display screen when the target device is a display screen; the broadcasting unit is used to verbally broadcast the information carried by the target signal through a speaker when the target device is a speaker.

[0110] From the above content, it can be seen that the transmission system achieves the purpose of amplifying the signal by the first device when the signal strength to be transmitted is weak by pre-deploying the first device in the elevator shaft and deploying the second device inside the elevator, thereby compensating for the attenuation of the signal to be transmitted in the elevator shaft and improving the signal strength and propagation effect. Afterwards, the transmission system receives the amplified signal through the second device installed inside the elevator, further improving the success rate of transmitting the amplified signal to the target terminal (i.e., the target device and the target model), thereby achieving the technical effect of improving the communication effect in the elevator, and thus solving the technical problem of low signal transmission strength and poor communication effect in the elevator in the prior art.

[0111] According to another aspect of an embodiment of the present application, a computer program product is further provided. The computer program product includes a stored computer program, wherein when the computer program is run, the computer program product is controlled to execute any one of the above-mentioned signal transmission methods in an elevator.

[0112] According to another aspect of an embodiment of the present application, an electronic device is provided, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to execute any one of the above-mentioned signal transmission methods in an elevator by executing the executable instructions.

[0113] Optionally, Figure 3 is a schematic diagram of an optional electronic device according to an embodiment of the present application, such as Figure 3 As shown, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, any one of the above-mentioned signal transmission methods in an elevator is implemented.

[0114] The above-mentioned embodiments or examples disclosed in this application are not exhaustive, but are only illustrations of some embodiments or examples, and are not intended to be specific limitations on the scope of protection disclosed in this application. In the absence of contradiction, each step in a certain embodiment or example in this application can be implemented as an independent example, and the steps can be arbitrarily combined. For example, the solution after removing some steps in a certain embodiment or example can also be implemented as an independent example, and the order of the steps in a certain embodiment or example can be arbitrarily exchanged. In addition, the optional methods or optional examples in a certain embodiment or example can be arbitrarily combined; in addition, the various embodiments or examples can be arbitrarily combined. For example, some or all of the steps in different embodiments or examples can be arbitrarily combined, and a certain embodiment or example can be arbitrarily combined with the optional methods or optional examples of other embodiments or examples.

[0115] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0116] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0117] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0118] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0119] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory. Memory may include non-permanent storage in a computer-readable medium, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

[0120] Computer-readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. The information can be computer-readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

[0121] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0122] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0123] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A signal transmission method in an elevator, characterized in that: include: collecting signals in an elevator shaft by a first device, wherein the first device is deployed at a preset location in the elevator shaft that is not subject to electromagnetic interference; When the intensity of the collected signal is less than a preset intensity, amplifying the signal by the first device to obtain a target signal, wherein the signal amplification is used to compensate for attenuation of the signal in the elevator shaft; The target signal is transmitted to a target device and / or a target model through a second device, wherein the second device is deployed inside the elevator, the target device includes at least an image acquisition device, a display screen, a speaker, and a communication device inside the elevator, and the target model is a neural network model trained based on the historical operation data and elevator fault data of the elevator for determining the safety level of the elevator.

2. The signal transmission method in an elevator according to claim 1, characterized in that: Before collecting the signal in the elevator shaft by the first device, the signal transmission method in the elevator further includes: Obtaining elevator data collected by L sensors, wherein the elevator data is used to represent real-time operation information of the elevator, L is a positive integer, and the L sensors include at least an acceleration sensor, a temperature sensor, a humidity sensor, an infrared sensor, and a sound sensor corresponding to the elevator; The elevator data is encoded to obtain the signal.

3. The signal transmission method in an elevator according to claim 1, characterized in that: After transmitting the target signal to the target model through the second device, the signal transmission method in the elevator further includes: determining a safety level of the elevator based on the signal using the target model; When the safety level of the elevator is less than or equal to a preset level, generating early warning information, wherein the early warning information at least includes the potential fault type of the elevator and the rescue measures corresponding to the fault type; The warning information is transmitted to the first device as a new signal.

4. The signal transmission method in an elevator according to claim 3, characterized in that: Determining a safety level of the elevator based on the signal by using the target model includes: Preprocessing the signal using the target model, wherein the preprocessing is used to filter redundant signals in the signal; Performing feature extraction on the preprocessed signal to obtain M elevator features, where M is a positive integer, and the M elevator features are used to characterize at least the position, speed, environmental parameters, load, and mechanical component status of the elevator; Performing a weighted summation on the preset scores corresponding to each of the M elevator features to obtain a target score for the elevator; The safety level of the elevator is determined according to the target score.

5. The signal transmission method in an elevator according to claim 1, characterized in that: Before transmitting the target signal to the target device through the second device, the signal transmission method in the elevator further includes: Obtaining signal strengths at N locations corresponding to the target device, where the N locations are locations within the target device where signals need to be received, and N is a positive integer; taking a position among the N positions where the signal strength is less than the preset strength as a target position, wherein the target position is an installation position of the second device in the target device; determining a target direction according to the internal structure and material of the target device, wherein the target direction is an installation direction of the second device in the target device; The second device is deployed into the target device based on the target location and the direction.

6. The signal transmission method in an elevator according to claim 1, characterized in that: After the target signal is transmitted to the target device through the second device, the signal transmission method in the elevator includes: Acquiring a target image through the image acquisition device, wherein the target image at least includes information of passengers trapped in the elevator; generating a distress signal based on the target image, wherein the distress signal is used to represent the emotional state and health status of the passenger trapped in the elevator; transmitting the distress signal to the communication device; The distress signal is transmitted to the operation and maintenance personnel of the elevator through the communication device.

7. The signal transmission method in an elevator according to claim 6, characterized in that: After transmitting the target signal to the target device through the second device, the method includes: In a case where the target device is the display screen, visually displaying the information carried by the target signal through the display screen; In a case where the target device is the speaker, the information carried by the target signal is verbally broadcasted through the speaker.

8. A signal transmission device in an elevator, characterized in that: include: a signal acquisition unit, configured to acquire signals in the elevator shaft through a first device, wherein the first device is deployed at a preset position in the elevator shaft that is not subject to electromagnetic interference; a signal amplifying unit, configured to amplify the signal by the first device to obtain a target signal when the strength of the collected signal is less than a preset strength, wherein the signal amplification is used to compensate for attenuation of the signal in the elevator shaft; A first transmission unit is used to transmit the target signal to a target device and / or a target model through a second device, wherein the second device is deployed inside the elevator, the target device at least includes an image acquisition device, a display screen, a speaker and a communication device in the elevator, and the target model is a neural network model trained based on the historical operation data and elevator fault data of the elevator for determining the safety level of the elevator.

9. A computer program product, characterized in that The computer program product comprises a computer program, wherein when the computer program is run, the computer program product is controlled to execute the signal transmission method in an elevator according to any one of claims 1 to 7.

10. An electronic device, characterized in that: The device comprises one or more processors and a memory, wherein the memory is used to store one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the signal transmission method in an elevator according to any one of claims 1 to 7.

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