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CN-117550452-B - Elevator door monitoring system and monitoring method

CN117550452BCN 117550452 BCN117550452 BCN 117550452BCN-117550452-B

Abstract

The invention provides an elevator door monitoring system and a monitoring method using the elevator door monitoring system, the monitoring system comprises a sensor system, a door machine controller and a memory, the door machine controller is respectively connected with the sensor system and the memory, wherein the door machine controller judges and acquires information I of movement of an elevator door to a certain area, the sensor system detects and acquires information II of movement of the elevator door to the area, the door machine controller judges the running state of the elevator door according to the information I and the information II and provides a judging result to the sensor system, and the sensor system maintains and/or modifies a judging standard of the information II according to the judging result. By the elevator door monitoring system and the elevator door monitoring method, the running state of the elevator door can be judged, so that the states of the hoistway door and the car door can be monitored more accurately.

Inventors

  • LV LING
  • SHI YANFENG
  • ZHANG XINGHUA
  • ZHANG YI

Assignees

  • 迅达（中国）电梯有限公司

Dates

Publication Date
20260508
Application Date
20220805

Claims (14)

  1. 1. The utility model provides an elevator door monitoring system, includes sensor system (1), door machine controller (2) and memory (3), and door machine controller (2) are connected with sensor system (1) and memory (3) respectively, the motion of door machine controller (2) control sedan-chair door (11), and sedan-chair door (11) drive hall door (10) realize the switching in access & exit, its characterized in that: The door machine controller (2) judges and acquires information I of the elevator door moving to a certain area, and the sensor system (1) detects and acquires information II of the elevator door moving to the area, wherein the information I comprises abnormal movement and no abnormal movement; The door machine controller (2) judges the running state of the elevator door according to the information I and the information II, and outputs a judging result according to the following rule, wherein the judging result is output to normally run when the information I is abnormal and the information II is collided or suspected collided, the fault early warning is output when the information I is abnormal and the information II is collision-free, the normal running is output when the information I is abnormal and the information II is collision-free, suspected collision or collision-free, and the judging result is provided to the sensor system (1); the sensor system (1) maintains and/or modifies the criterion of the information two by means of the result of the determination.
  2. 2. The elevator door monitoring system according to claim 1, wherein the door machine controller (2) obtains the first information by comparing initial physical data with actual physical data, wherein the initial physical data is physical data when the door is normally opened and closed after the elevator is installed and debugged, and the actual physical data is physical data when the elevator is operated, wherein the elevator door is operated after each stopping floor.
  3. 3. An elevator door monitoring system according to claim 2, characterized in that the physical data are current data and/or speed data.
  4. 4. Elevator door monitoring system according to claim 1, characterized in that the information two is information in the field of view of the threshold provided by the sensor system (1), at least comprising information about the ingress and egress of persons or objects.
  5. 5. The elevator door monitoring system of claim 4, wherein the information in the field of view of the threshold includes information about whether an object has impacted the door, and information about small debris in the door sliding guide.
  6. 6. An elevator door monitoring system according to any of claims 1-5, characterized in that the sensors in the sensor system (1) comprise at least one of a radar sensor, a time-of-flight sensor, an infrared sensor, a three-dimensional light curtain and an optical sensor.
  7. 7. The elevator door monitoring system of claim 6, wherein the sensor is a three-dimensional light curtain.
  8. 8. An elevator door monitoring system according to any of claims 1-5, characterized in that the sensor is mounted on the door head (16).
  9. 9. A monitoring method using the elevator door monitoring system of any of claims 1-8, comprising the steps of: the method comprises the following steps that S1, a door machine controller (2) judges and obtains information I of movement of an elevator door to a certain area, a sensor system (1) detects and obtains information II of movement of the elevator door to the area, and the information II is transmitted to the door machine controller (2); S2, comprehensively judging by the door machine controller (2) according to the first information and the second information, and outputting the judgment result to be normal operation or fault early warning by the elevator door monitoring system; S3, the door machine controller (2) feeds a judging result back to the sensor system (1); s4, the sensor system (1) maintains and/or modifies the judgment standard of the information II according to the judgment result.
  10. 10. The monitoring method according to claim 9, wherein in step S2, the door operator controller (2) performs the comprehensive judgment by: the first information of the movement of the elevator door to a certain area has a higher priority than the second information of the movement of the elevator door to the area.
  11. 11. The monitoring method according to claim 10, wherein when the first information is abnormal, the second information is collision or suspected collision, the elevator door monitoring system outputs normal operation, the door machine controller (2) feeds back the collision to the sensor system (1), and when the first information is abnormal, the second information is no collision, the elevator door monitoring system outputs fault early warning.
  12. 12. The monitoring method according to claim 11, wherein the sensor system (1) maintains the criterion of the second information if the second information is previously judged to have a collision when receiving the feedback of the collision, and classifies the state of the suspected collision as the criterion of the second information if the second information is previously judged to have a suspected collision.
  13. 13. The monitoring method according to claim 10, wherein when the first information is no abnormal movement, the second information is collision or suspected collision, the elevator door monitoring system output is normal operation, the door machine controller (2) feeds back no collision to the sensor system (1), and when the first information is no abnormal movement, the second information is no collision, the elevator door monitoring system output is normal operation.
  14. 14. The monitoring method according to claim 13, wherein the sensor system (1) upon receiving the feedback of no collision, classifies the collision or suspected collision state as no collision as the criterion of the information two.

Description

Elevator door monitoring system and monitoring method Technical Field The present invention relates generally to monitoring systems for elevator installations, and in particular to monitoring systems for monitoring elevator door operation and monitoring methods using the same. Background In elevator systems, door system failure is one of the main causes of elevator accidents. Currently, on-line monitoring of elevator door systems is a problem faced in theoretical research and practical engineering to reduce the occurrence of elevator door failures. The state monitoring of the hoistway door and the car door of the elevator door can predict the service life of the elevator, quickly and accurately acquire the fault state of the elevator and the like, and timely early warning is carried out when faults are detected, so that important effects are achieved in the aspects of avoiding accidents and improving the operation safety of the elevator, and each large elevator manufacturer takes the technology as an important research and development direction and is continuously carried out in technical iterative development at present. In the prior art, reference 1 (CN 201480044714 a) discloses a monitoring system of an elevator apparatus and a method of applying the monitoring system for detecting usage data of an elevator door. The monitoring system is suitable for generating usage data of the elevator door, and comprises a sensor arranged in the elevator system, wherein the sensor is used for detecting at least one physical parameter around the sensor and judging an evaluation unit, and the working state of the elevator door can be determined by means of a time-dependent curve of the physical parameter. The detection of the state of the elevator door by the sensor enables the determination of the operating state of the elevator door by means of the time-dependent profile of the physical parameter, wherein the physical parameter is an optical parameter, an acoustic parameter or a magnetic parameter. The solution of reference 1, however, requires an additional sensor-based monitoring system for monitoring the operational state of the door by means of an optical sensor, and the sensor cannot provide an anti-pinch function of an elevator like a 3D light curtain, nor does the solution describe the specific contents and implementation to be monitored, and its monitoring effect has limitations. Reference 2 (CN 110817636 a) discloses a fault diagnosis method, apparatus, medium and device for an elevator door system, which can obtain specified characteristic parameters through operation data generated during operation of the elevator door system, and make judgment of type and cause of fault by using the specified characteristic parameters and a fault diagnosis model trained in advance. Based on the operation data, the fault type and the cause are judged through a pre-trained fault diagnosis model, so that the fault diagnosis is refined, and the fault diagnosis accuracy is ensured. However, the solution of reference 2 judges the elevator door state by training a model, the method is complex, the cost of hardware such as a door machine controller chip is high, the judging accuracy depends on the model accuracy, and the current immature model case cannot be popularized and applied on a large scale. Reference 3 (CN 110407072 a) provides a door control system comprising a sensor having a field of view of a door sill near an entrance to an occupied area, wherein the sensor is adapted to detect the door sill and an object in a landing area near the door sill, wherein the sensor operates based on a movement of a door in the door sill. And based at least on detecting an object within a portion of the threshold or the landing zone, the sensor is operable to signal a door operator controller to perform an action. However, the solution of reference 3 detects an object in the field of view of the threshold by means of a sensor, and can only monitor the object in the field of view of the threshold, without monitoring the elevator door. The door controller is provided with a sensor, a sensor-based monitoring system is additionally arranged, and the door controller is provided with a sensor and an algorithm, wherein the sensor is used for acquiring information of the door controller, the algorithm is used for acquiring information of the door controller, and the sensor is used for acquiring the information of the door controller. Therefore, there is an urgent need to provide an elevator door monitoring system that is accurate, efficient, convenient, and fast, and does not increase costs. Disclosure of Invention The present invention aims to address at least one aspect of the problems and disadvantages described above. According to one aspect of the invention, an elevator door monitoring system is provided, which comprises a sensor system, a door machine controller and a memory, wherein the door machine controller is respectively connected wit