1201results about "Escalators" patented technology

The invention discloses an escalator monitoring operation and maintenance method and system based on multi-source data fusion, and relates to the technical field of escalator operation and maintaining.The method comprises the steps that multi-source parameter collection is conducted on a target escalator, and a multi-source sensing data set is generated; transmitting the multi-source sensing data set to a data fusion processing center in real time; generating a fusion data set; running state monitoring of the target escalator is executed, and an early warning signal is sent out according to the monitoring risk value; and performing performance evaluation and risk grade division on the target escalator, executing a preventive maintenance decision, and sending the preventive maintenance decision to an operation and maintenance management user. The technical problems that in the prior art, monitoring of the running state of the escalator is not accurate, risks are difficult to perceive in time, and consequently the running safety and stability of the escalator are difficult to guarantee are solved, a perfect escalator intelligent operation and maintenance management system is constructed, and the safety and reliability of the escalator are improved. The technical effects of performance evaluation, risk grade division, preventive maintenance, environmental adaptability transformation, emergency response and service life evaluation are achieved.

The invention discloses an escalator operation environment monitoring and risk assessment method, and relates to the related field of escalator safety monitoring, and the method comprises the following steps: cooperatively carrying out escalator monitoring data acquisition; real-time receiving and transmission are carried out based on the Internet of Things; performing data association mining on the time sequence environment parameters and the time sequence operation parameters, and outputting environment risk association data; loading to an environment risk assessment model for operation risk assessment, and constructing an integrated assessment system from the aspects of structural stability, durability, safety protection and the like; and escalator operation and maintenance decision making is carried out according to the risk assessment result, multi-dimensional risk prevention and control and response are achieved, performance assessment, risk grade division and early warning are included, and preventive maintenance, environmental adaptability transformation and emergency response mechanisms are established. The technical problems that existing escalator risk assessment is incomplete in monitoring, not real-time, inaccurate in risk identification and insufficient in assessment result reliability are solved, and the technical effect of improving the risk identification accuracy and the assessment result reliability is achieved.

The invention provides an intelligent evaluation method and system for the running state of an escalator, and relates to the technical field of escalator safety maintaining.The method comprises the steps that multiple types of sensors are installed at key parts of the escalator, and a data acquisition layer is constructed to conduct real-time acquisition on the escalator; performing preprocessing through a data preprocessing layer; performing feature analysis and evaluation through the feature engineering layer, and determining an operation feature subset; a fault prediction data set is generated based on the fault prediction model layer, training verification is carried out through the model evaluation and optimization layer, the fault prediction model layer is optimized, and an escalator fault prediction result is output; and synchronizing to a fault early warning and maintenance decision-making layer for fault early warning, and making a maintenance decision of the escalator. According to the method and the device, the technical problems that potential safety hazards are difficult to find and safe operation evaluation of the escalator is affected due to the fact that the operation data of the escalator under various working conditions cannot be comprehensively obtained are solved, and the accuracy of operation evaluation of the escalator is improved.

The invention relates to a directional speaker system for a passenger transport system. A passenger transport system (100; 200); 300); 400, 400; 500); 600) comprises: a directional speaker system (106; 206, 206; 306; 406a-c, 406a-c; 506a-b, 506a-b; 606), the directional speaker system being configured to transmit an audio communication (120a-b; 220 a-b; 220 a-b; 320a-b; 320a-b; 420a-e) to a restricted target area (110a-b; 310a-b, 310a-b; 410a-b, 410a-b; 610a-c) in the formula (I). The use of a directional speaker system allows audio communications to be sent to a user (or to multiple users) without the need to broadcast messages more widely. Thus, other users of the system are not disturbed or distracted by messages that they are not interested in or are not related to.

The invention provides an escalator skirt panel and step gap detection method, electronic equipment and a medium, and relates to the technical field of visual detection.The method comprises the steps that a visual file is obtained, and the visual file comprises a target image, a first visual image of the previous frame of the target image and a second visual image of the next frame of the target image; the target image, the first visual image and the second visual image all have visual features used for representing gaps between skirt panels and steps of the escalator; based on a preset algorithm, a definition parameter in the target image is obtained, the definition parameter is used for representing the definition of the target image, and the definition parameter is in positive correlation with the definition; and determining a detection strategy of the gap based on the definition parameter. The method is suitable for continuous detection of the gap between the skirt panel and the step of the escalator.

An automatic transport device includes a first side and a second side opposite to each other, the first side includes a main drive device, a step drive wheel and a first handrail drive wheel in transmission connection with the main drive device, and the second side is provided with: a step driven wheel; a second handrail drive wheel, the handrail of the automatic transport device wraps around the first handrail drive wheel and the second handrail drive wheel; a first tensioning device and a first transmission member, the first tensioning device is capable of adjusting the movement of the step driven wheel relative to the step drive wheel, thereby maintaining the first transmission member between the step drive wheel and the step driven wheel in tension; and a second tensioning device and a second transmission member, the second handrail drive wheel is in transmission connection with the step driven wheel.

A passenger conveyance system (100; 200; 300; 400; 500; 600) comprising: a directional speaker system (106; 206; 306; 406a-c; 506a-b; 606) configured to transmit an audio communication (120a-b; 220a-b; 320a-b; 420a-e) into a restricted target area (110a-b; 310a-b; 410a-b; 610a-c). Using a directional speaker system allows audio communications to be sent to a user (or to multiple users) without broadcasting the message more widely. Thus other users of the system are not disturbed or distracted by messages that are not of interest to them or not relevant to them.

The invention discloses an escalator fault prediction system and method based on a vibration algorithm. The escalator fault prediction system comprises a data acquisition module, a cloud server and a monitoring center, the data acquisition module comprises a motor vibration sensor, a speed reducer vibration sensor, a main machine base vibration sensor, an oil temperature sensor, a main drive vibration sensor and a handrail belt temperature sensor, wherein the motor vibration sensor, the speed reducer vibration sensor, the main machine base vibration sensor and the oil temperature sensor are installed on an escalator main machine; the main drive vibration sensor is installed on a chain wheel on the upper portion of an escalator; the step chain extension position sensor and the step chain wheel vibration sensor are arranged on a chain wheel at the lower part of the escalator; the sensors are respectively connected with a signal input end of a data processing module of the cloud server through the Ethernet, a signal output end of the data processing module is connected with an intelligent diagnosis module, and the intelligent diagnosis module of the cloud server is connected with a visual display module of a monitoring center through 485 communication. According to the invention, comprehensive monitoring and accurate diagnosis of the key transmission part of the escalator can be realized.

A passenger conveyance system (100; 200; 300; 400; 500; 600) includes a directional speaker system (106; 206; 306; 406a-c; 506a-b; 606) configured to transmit an audio communication (120a-b; 220a-b; 320a-b; 420a-e) into a restricted target area (110a-b; 310a-b; 410a-b; 610a-c). Using a directional speaker system allows audio communications to be sent to a user (or to multiple users) without broadcasting the message more widely.

The invention discloses a step wheel state detection method and system, and the method comprises the steps: collecting a vibration signal of a step wheel through a high-frequency acceleration sensor, and carrying out the feature extraction of the vibration signal, and obtaining a dual-scale feature; dynamically adjusting the corresponding initial weight based on the dual-scale features through a pre-trained fault detection model to obtain a target feature weight; performing prediction processing based on the dual-scale features and the target feature weight to obtain a corresponding prediction state type, the prediction state type including a normal state and a fault state; and performing confidence calculation on the prediction state type based on the target feature weight to obtain a confidence result, and obtaining a comprehensive state detection result of the vibration signal based on the confidence result and the prediction state type. Real-time escalator step wheel state monitoring is achieved, the step wheel defects can be efficiently and accurately determined, the step wheel maintenance efficiency is improved, and the safety and reliability of an escalator are improved.

The invention discloses a monitoring and early warning device applied to an escalator band-type brake, relates to the related technical field of brake band-type brake testing, and solves the problems that data after monitoring of a brake for the escalator band-type brake is greatly different from data during actual installation and use, and the monitoring result does not conform to the specific use condition. The monitoring and early warning device applied to the escalator band-type brake comprises an equipment machine table, an automatic band-type brake monitoring mechanism, an escalator simulation assembly and an electrical cabinet, the top of the equipment machine table is provided with the automatic band-type brake monitoring mechanism, the automatic band-type brake monitoring mechanism comprises the escalator simulation assembly, and the automatic band-type brake monitoring mechanism is connected with the electrical cabinet through a wire. The electrical cabinet is installed on the top of the equipment machine table. According to the invention, through the escalator simulation assembly and adjustment of the operation speed of the escalator simulation assembly, the state of the brake when the brake is actually installed in the escalator and the band-type brake is used can be simulated, and the accuracy of the escalator brake during actual monitoring is improved.

To accurately ride on a footstep by an autonomous moving body single body.SOLUTION: An autonomous moving body according to an embodiment includes an imaging control unit configured to cause an imaging unit to capture an image of an area in front of the autonomous moving body when the autonomous moving body reaches an entrance / exit of a passenger conveyor, an image processing unit configured to analyze a pair of index objects in an image captured by the imaging unit, the pair of index objects being provided at bilaterally symmetrical positions on the passenger conveyor and serving as indexes for position adjustment, and a traveling control unit configured to control a driving unit to cause the autonomous moving body to travel, to adjust a position of the autonomous moving body based on the pair of index objects in the captured image such that a position of a center of gravity of the autonomous moving body coincides with a center position of a step in a width direction, and to cause the autonomous moving body to travel toward the step at the adjusted position.SELECTED DRAWING: Figure 8

To provide a passenger conveyor capable of keeping work smoothly such as an inspection of an autonomous movable body for a passenger conveyor and capable of preventing defects due to contacting between the third party and an autonomous movable body.SOLUTION: A passenger conveyor according to the present embodiment comprises a first detection unit to detect the intrusion to each of two getting on / off boards, a second detection unit to detect the intrusion in the range closer to the footstep side than the detection range of the first detection unit and on each of the two getting on / off boards, and a control device to control the passenger conveyor. The control device comprises an alarm output unit to output the alarm when the intrusion is detected by the first detection unit in the case that an autonomous movable body exists on the footstep, and a processing control unit to execute prescribed processing for intrusion prevention when the intrusion is detected by the second detection unit after outputting the alarm.SELECTED DRAWING: Figure 3

By providing elevator guidance to users with different attributes, we aim to prevent contact and congestion between users, improving user convenience. [Solution] The system comprises a camera that captures images of users near the escalator entrance, an attribute analysis unit that estimates and analyzes the attributes of the users based on the captured camera images, a dwell time measurement unit that measures the amount of time that users near the entrance spend at the entrance based on the camera images, a guidance device that is installed near the entrance and provides guidance information to users by audio and video, and a judgment processing unit that displays guidance information corresponding to the attributes and dwell time of the users at the entrance on the guidance device and notifies them by audio based on the user attribute information analyzed by the attribute analysis unit and the dwell time information measured by the dwell time measurement unit.

The invention relates to the technical field of intelligent security, and provides a computer vision technology-based elevator dangerous behavior real-time alarm method, which comprises the following steps of: capturing the activity condition of an elevator in real time through a camera, processing an RGB (Red, Green, Blue) image transmitted by the camera through an algorithm platform, and determining the accurate position of a person in the image through a target detection technology; and human body skeleton point detection is further performed according to the target detection result, and is compared with a preset elevator handrail area, so that actions such as head stretching, hand stretching and falling down are effectively recognized. Meanwhile, according to the moving direction of the human body detection frame, the system can judge whether the passenger runs reversely or not. Besides accurate identification and judgment of potential dangerous behaviors such as retrograde running, hand stretching and head stretching of passengers on the elevator, the method can also identify large luggage and elevator pedal gaps, and comprehensive application of various algorithms ensures operation safety of the elevator.

The utility model discloses an adding structure for noise reduction of step chains of an escalator. The escalator comprises two sets of step chains arranged side by side, a step shaft connected between the two sets of step chains, and idler wheels arranged on the step shaft. The adding structure is arranged at the rotation position of the step chain and comprises a tangential guide rail and an unloading guide rail. The tangential guide rail is arranged below the roller and is provided with a rail surface for guiding the roller to move; the unloading guide rail is arranged below a step chain and provided with a bearing face which extends in the running direction of the step chain and lifts chain pieces of the step chain. And a designed distance is formed between the bearing surface and the rail surface in the vertical direction. The step chain is lifted at the rotation position of the step chain, so that the impact force generated when the roller of the step chain is meshed with the step chain wheel is reduced, the noise generated when the step chain runs is effectively reduced, and the practicability is high.

The invention provides an escalator operation monitoring method and device, electronic equipment and a storage medium, and the method comprises the steps: collecting various key working state parameters of a to-be-monitored escalator during working through a sensor array arranged on the to-be-monitored escalator, the working state parameters are uploaded to edge computing equipment beside the escalator to be monitored, and the edge computing equipment evaluates the comprehensive health index of the escalator to be monitored; the edge computing device uploads the monitored working state parameters of the escalator and the evaluated comprehensive health index to the cloud end, and the cloud end continues to monitor the operation condition of the escalator according to the indication condition of the comprehensive health index. By means of the method, comprehensive understanding of the state of the escalator is enhanced, and therefore the fault rate and the maintenance cost are reduced.

To operate and stop a passenger conveyor at appropriate timing regardless of the specifications of the passenger conveyor when an autonomous mobile body is made to get on the passenger conveyor, and to make the autonomous mobile body get on at a position not affected by step movement of a footstep during operation.SOLUTION: An autonomous mobile body control system according to an embodiment comprises: a first detection unit that is provided below the vicinity of an end of a getting-on-and-off board facing footsteps and is capable of detecting a first gap which is a gap between two footsteps passing through the vicinity of the end; a second detection unit that is provided below the getting-on-and-off board at a position separated by a predetermined distance from an installation position of the first detection unit and is capable of detecting a second gap which is a gap between the two circulating footsteps; and a first determination unit that determines that an autonomous mobile body can get on the footsteps if, after detecting the first gap, the second gap is not yet detected by the second detection unit or if the second gap is detected consecutively.SELECTED DRAWING: Figure 1

To provide a passenger conveyor liquid-medicine spray device that allows passengers to use the moving handrail with peace of mind.SOLUTION: A passenger conveyor liquid-medicine spray device comprises a liquid-medicine spray device body 21a provided in the section constituting the entrance in the moving direction of multiple steps 4 of a passenger conveyor 1 and spraying the liquid-medicine having at least one of antibacterial, germicidal and disinfectant properties from a first spray port 15a to a moving handrail 6, a first detection part 30a to detect the passenger boarding a passenger conveyor 1, a second detection part 31a installed closer to the passenger conveyor 1 side than the first detection part 30a and to detect the passenger boarding the passenger conveyor 1, a walking speed calculation part 43 to calculate the passenger walking speed based on the detected information by the first detection part 30a and by the second detection part 31a, and a liquid-medicine spray control part 46 to activate the liquid-medicine spray device body 21a based on the calculated walking speed by the walking speed calculation part 43 and to cause the device to spray the chemical solution.SELECTED DRAWING: Figure 2

The intelligent monitoring system comprises a sensor assembly, a terminal controller and a man-machine interaction device, the sensor assembly comprises an infrared thermal imaging sensor, a microswitch sensor and a rotary encoder, the infrared thermal imaging sensor is arranged on a truss of a machine room of the escalator, the microswitch sensor is arranged on the truss of the machine room of the escalator, and the rotary encoder is arranged on the terminal controller. The microswitch sensor is arranged on the brake, and the rotary encoder is arranged on the driving wheel. The terminal controller comprises a power supply module, an MCU board, an RS485 / TTL module and an optical coupler isolation module, the power supply module is connected with the MCU board, the RS485 / TTL module is connected with the MCU board, the optical coupler isolation module is connected with the MCU board, the man-machine interaction device comprises a display screen, and the display screen is arranged in a monitoring room; the escalator comprises the intelligent monitoring system and further comprises a footpath, a driving device and handrails. The escalator brake state monitoring device has the advantages that the state of the escalator brake can be accurately monitored, manual operation is not needed, and interference and damage risks to the brake are reduced.

The invention provides an escalator running path sensing method based on sensor data. The escalator running path sensing method comprises the following steps: acquiring multi-source nine-axis sensor data; carrying out fusion and feature enhancement on the multi-source nine-axis sensor data; step 2, static state detection and scene classification; 3, escalator running direction judgment and cross-layer quantification are carried out; and 4, outputting a calculation result. According to the escalator running path sensing method based on the sensor data, high-precision and low-power-consumption vertical traffic scene recognition and motion trail reconstruction are achieved through a technical path of staged physical modeling and deep learning collaborative optimization.

To prevent an autonomous moving body from falling down or dropping when the autonomous moving body gets on a getting-on / off plate or a footstep.SOLUTION: In the autonomous moving body control system according to the embodiment, the passenger conveyor includes sign information that is provided on an upper surface of each of the plurality of steps and an upper surface of the landing platform and in which position information is recorded, and the autonomous moving body includes a detection unit that is provided toward a lower side of the main body and can read the sign information, an acquisition unit that acquires the position information from the sign information read by the detection unit, and a travel control unit that adjusts a position of the autonomous moving body based on the acquired position information and predetermined position information of the autonomous moving body.SELECTED DRAWING: Figure 9

The invention belongs to the technical field of escalator braking performance detection, and particularly discloses an elevator braking performance intelligent detection method and system.The method comprises the steps that a parameterized simulation model is built based on mechanical topology and dynamic characteristics of an escalator, and firstly, model initial calibration is completed through a no-load braking test; then, a gradient simulation load scheme is designed in combination with actual operation load distribution, advanced calibration is performed on the model through physical test data under multi-stage loads, and finally, accurate prediction of the full-load braking performance is realized by relying on a high-fidelity calibration model, so that actual measurement of full-load weights is not needed, the detection safety and efficiency are remarkably improved, and the detection efficiency is improved. And the problem of model mismatching caused by factors such as equipment aging and abrasion can be effectively solved through a data-driven iterative calibration mechanism, the long-term prediction precision is ensured, and reliable technical support is provided for normalized and intelligent evaluation of the braking performance.

To prevent damage to a passenger conveyor, a user and an autonomous moving body.SOLUTION: An autonomous mobile body control system according to an embodiment includes a control device configured to control a passenger conveyor including a plurality of steps connected in an endless manner and configured to move, and an autonomous mobile body configured to be autonomously movable on the steps of the passenger conveyor, wherein the control device includes a drive control unit configured to control movement of the steps, and a transmission control unit configured to control transmission of a transmission wave to a transmission device capable of transmitting the transmission wave in an upper range of a landing board from which the plurality of steps are drawn out or drawn in at a boarding and alighting place of the passenger conveyor, and the autonomous mobile body includes a drive unit, a reception unit configured to receive the transmission wave, and a traveling control unit configured to control traveling so as to avoid reception of the transmission wave by controlling the drive unit.SELECTED DRAWING: Figure 7

To provide a passenger conveyor system capable of determining a place of a guide rail of a passenger conveyor where there is an abnormality or determining which footstep roller of a footstep has an abnormality, a mobile body for inspecting the passenger conveyor, and an abnormality determination program.SOLUTION: A vibration sensor 110 executes detection while a mobile body 100 moves on a footstep 30 on an approach route. When a vibration wave exceeds a predetermined rail reference value F, a position exceeding the reference value is recorded as an abnormality location on the approach route. While the mobile body moves on the footstep on a return route, the vibration sensor 110 executes detection. When the vibration wave exceeds the rail reference value F, a position exceeding the reference value is recorded as an abnormality location on the return route. When the abnormality location on the approach route and the abnormality location on the return route match each other, an abnormality is determined to exist in a first guide rail 29 or a second guide rail 25 in the matched abnormality locations.SELECTED DRAWING: Figure 1

The invention provides a multi-area information fusion escalator speed monitoring method. The problems that a traditional sensor is complex in installation and a general vision algorithm is insufficient in robustness are solved through a non-contact detection means. The method specifically comprises the steps that multiple detection areas are divided in a horizontal section and an inclined section of the escalator, a speed correlation model is established based on a kinematics constraint relation, and dynamic speed calculation in a shielding scene is achieved; yellow warning frame features are extracted through a centroid tracking algorithm, and the detection precision is improved in combination with boundary crossing judgment conditions and a dynamic time compensation mechanism; a redundancy detection process and multi-region cooperative verification are designed, the system reliability under complex illumination and stain interference is guaranteed, and a complete technical closed loop from data acquisition, algorithm processing to safety early warning is formed.

The present disclosure relates to a display method and a display system of video streams. The display method includes: obtaining a plurality of video streams associated with a plurality of video capture devices; determining a first plurality of video streams associated with a first escalator among the plurality of video streams; determining positions of a first plurality of video capture devices associated with the first plurality of video streams among the plurality of video capture devices over the first escalator; determining a first display order of the first plurality of video streams in a first plurality of display windows based on the determined positions of the first plurality of video capture devices over the first escalator; and displaying the first plurality of video streams in the first plurality of display windows according to the first display order.

The invention relates to an additional braking device, an escalator and a moving sidewalk, the additional braking device comprises a first gear, a braking mechanism and a driving mechanism, and the first gear is used for being connected with a driving main shaft and can synchronously rotate with the driving main shaft; the braking mechanism comprises a supporting base, a second gear and a braking assembly, the tooth number of the second gear is smaller than that of the first gear, the second gear is rotationally connected with the supporting base, and the braking assembly is connected with the second gear and used for limiting rotation of the second gear; the supporting seat is provided with a braking position and a separating position, and when the supporting seat is in the braking position, the second gear is meshed with the first gear; at the separation position, the second gear is separated from the first gear; the driving mechanism is connected with the supporting base and used for driving the supporting base to move between the braking position and the separation position. The additional brake is stable in braking process and convenient to maintain.

The utility model discloses a moving sidewalk truss and relates to the technical field of sidewalk trusses, the moving sidewalk truss comprises a truss, the bottom side of the truss is provided with a positioning assembly, the positioning assembly is internally provided with a butt joint unit, the inner side of the positioning assembly is provided with a convenient-to-install unit, the butt joint unit comprises a fixing hole, and the convenient-to-install unit is arranged in the fixing hole. The fixing hole is formed in the positioning assembly, an inserting plate is arranged in the fixing hole, a first spring is fixedly connected to one side of the fixing hole, and a fixing rod is slidably connected to the inner side of the inserting plate. Through the arrangement of the fixing holes, the inserting plates, the first springs, the fixing rods, the clamping blocks and the threaded rods, the left side frame and the right side frame can be conveniently installed in advance and then transported to the installation position, and after the left side frame and the right side frame are positioned, the left side frame and the right side frame are fixed through the fixing holes, the inserting plates, the first springs, the fixing rods, the clamping blocks and the threaded rods. And the overall installation is fixed again, and meanwhile the overall structural strength is improved again.

The utility model discloses a surface cleaning and maintaining device for an escalator, and relates to the technical field of handrails. A surface cleaning and maintaining device for an escalator comprises a first fixing support and a second fixing support, a cleaning device is arranged on the first fixing support, clamping devices are arranged on the second fixing support and the first fixing support, and the cleaning device comprises a cleaning roller, two fixing blocks and two limiting sleeves. A threaded rod is screwed and rotated in the cleaning device to move towards the handrail to drive a clamping block to clamp the handrail, in this way, after the cleaning device is installed, when the handrail runs, a solvent in the handrail is conveyed into a sprayer through a hose by means of a liquid storage tank, and then the solvent is evenly sprayed to the surface of a cleaning roller through the sprayer to clean the handrail; in this way, the cleaning efficiency is effectively improved, the situation that a worker needs to manually clean the handrail is avoided, the cleaning efficiency of the handrail is effectively improved, and meanwhile the workload of the worker is reduced.