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CN-122009931-A - Method, system and computer readable storage medium for controlling security outside elevator hall

CN122009931ACN 122009931 ACN122009931 ACN 122009931ACN-122009931-A

Abstract

The invention provides a method and a system for controlling safety outside an elevator hall and a computer readable storage medium, and relates to the technical field of elevator safety. The control method comprises the following steps of identifying the state of a button feedback signal of each layer, marking a floor corresponding to a button with abnormal feedback signal as a patrol layer, wherein the abnormal feedback signal comprises no signal exceeding a preset duration or the frequency of the signal exceeding a preset value within a preset period, and controlling an elevator door to be kept in an open state when an elevator runs to the patrol layer. The method can actively identify abnormal closed risk of floors, fills up safety blind areas of scenes such as building construction and fitment transition period, does not need to add a sensor, multiplexes the existing communication link and MPU resources, has strong robustness, low invasiveness and high engineering feasibility, and ensures scheduling efficiency while timely rescuing trapped personnel.

Inventors

  • XU XUEWEN
  • ZHANG MINHUA

Assignees

  • 日立电梯(上海)有限公司
  • 日立电梯（中国）有限公司

Dates

Publication Date
20260512
Application Date
20260313

Claims (10)

  1. 1. The method for controlling the safety outside the elevator hall is characterized by comprising the following steps of: Recognizing the state of the button feedback signals of each layer; Marking floors corresponding to buttons with abnormal feedback signals as inspection floors, wherein the abnormal feedback signals comprise no signals exceeding a preset duration or signal frequencies exceeding a preset value within a preset period; when the elevator runs to the inspection layer, the elevator door is controlled to be kept in an open state.
  2. 2. The method of controlling safety outside an elevator hall according to claim 1, further comprising: when the elevator is in the inspection floor and the elevator door is kept in an open state, if a floor calling signal is received, the elevator is controlled to run to the corresponding floor.
  3. 3. The method of controlling security outside an elevator hall according to claim 2, further comprising: If the inspection layer calibrated by the signal frequency exceeding the preset value in the preset period exists, after the layer calling instruction is completed, controlling the elevator to return to the inspection layer, and controlling the elevator door to keep an open state.
  4. 4. The method of claim 1 to 3, wherein the identifying the status of the individual floor button feedback signals comprises: acquiring trigger signals of each layer of calling buttons in a preset period; The preset period is a configurable time interval between 20ms and 100 ms.
  5. 5. The method for controlling safety outside an elevator hall according to claim 4, wherein the determining that there is no signal beyond the preset time period comprises: A calling button does not generate effective trigger signals in N continuous preset periods, wherein N is more than or equal to 50.
  6. 6. The method according to claim 4, wherein the determining that the frequency of the signal exceeds the preset value in the preset time period comprises: a certain layer of calling button continuously generates a trigger signal in M continuous preset periods, wherein M is more than or equal to 7500; The number of trigger signals generated by a calling button in a certain layer exceeds a threshold value K in a unit time T, wherein T=1s, and K is more than or equal to 5 times.
  7. 7. The method of controlling safety outside an elevator hall according to claim 1, wherein a timer is started synchronously with the elevator door kept open; when the timer reaches the preset duration L, if the calling signal of the layer is not received, judging whether the layer is still a patrol layer; wherein L is a configurable time between 30s and 300 s.
  8. 8. An out-of-hoistway security management and control system, comprising: the external call state acquisition unit is configured to acquire state signals of all external call buttons in real time and send the state signals to the central processing unit in a preset period; A central processing unit configured to perform the out-of-elevator-hall security management and control method of any one of claims 1 to 7, identify a patrol floor and generate elevator operation instructions and gating instructions; an elevator operation control unit configured to schedule the traction system to operate the car to the corresponding floor in response to the operation instruction; and the door control execution unit is configured to respond to the door control instruction, control the opening of the hall door and the car door and maintain the opening state.
  9. 9. The hoistway external security management system of claim 8, further comprising a human-machine interaction unit configured to output a voice prompt during a patrol layer residence.
  10. 10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method of controlling the security outside an elevator hall as claimed in any one of claims 1 to 7.

Description

Method, system and computer readable storage medium for controlling security outside elevator hall Technical Field The invention relates to the technical field of elevator safety, in particular to an elevator hall safety control method, an elevator hall safety control system and a computer readable storage medium. Background In elevator systems, an out-hall call box (out call) is a key human-machine interaction interface for passengers to initiate an operation request. In order to ensure the reliability of the calling function, the prior art generally adopts a simple fault detection mechanism based on a static time threshold. For example, some manufacturers configure the function of "sticky detection of the recall button", namely when a recall button continuously outputs an effective signal for more than 5 minutes, a Main Processing Unit (MPU) judges that the recall button is in a mechanical clamping stagnation or electrical short circuit state and records corresponding fault codes, and the faults are only used as maintenance prompts, do not trigger real-time response actions and do not interfere with the current running logic of the elevator. However, such detection mechanisms have a significant technical dead zone in that they are designed to only target the failure of the device itself (such as physical adhesion of buttons, line leakage) and cannot recognize and cope with the security risk caused by abrupt environmental state changes at the level of the building. In practice, the newly built or modified building is always in a staged construction state before delivery, and part of floors are installed in an elevator shaft and an elevator car, but the building is closed in a physical mode (such as blocking a hall door, removing a calling box and disconnecting external calling power supply) due to unfinished decoration, failed fire-fighting acceptance or temporary safety control requirement. At this time, if the recall device is removed or power supply is interrupted, the state signal sent by the recall device to the MPU is completely disappeared, and if only the hall door is blocked and the recall device is still electrified, the situation that the button is not fed back for a long time after being touched by mistake, or the signal frequency is abnormal due to repeated testing of constructors, and the like may occur. In the above scenario, the recall signal presents a non-faulty exception (i.e., caused by no equipment damage, but caused by environmental forced intervention), but the existing detection logic cannot distinguish such exception from a normal idle state (e.g., no passenger operation for a long time), so that neither an alarm is triggered nor any active intervention is initiated. Therefore, the technical problem to be solved is that when passengers misdrive the elevator and arrive at the closed floors due to misguidance, unclear identification, information lag and the like, the passengers cannot return in time before the car door is closed, the hall door is blocked, the calling box is lost or the communication is interrupted, the re-calling capability is lost, and the passengers are trapped in the closed space, so that serious personal safety hazards are formed. The problem is essentially caused by the lack of dynamic modeling capability of the correlation between the time-space behavior pattern of the recall signal and the actual availability of the floors in the prior art, and no matched automatic response mechanism is provided for realizing the active identification and controlled disposal of the risk floors. Disclosure of Invention The invention aims to provide a method, a system and a computer readable storage medium for controlling safety outside an elevator hall, so as to solve the potential safety hazard that passengers are trapped after entering a closed floor by mistake. In a first aspect, the present invention provides a method for controlling security outside an elevator hall, comprising the following steps: Recognizing the state of the button feedback signals of each layer; Marking floors corresponding to buttons with abnormal feedback signals as inspection floors, wherein the abnormal feedback signals comprise no signals exceeding a preset duration or signal frequencies exceeding a preset value within a preset period; when the elevator runs to the inspection layer, the elevator door is controlled to be kept in an open state. With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the method for controlling security outside an elevator hall further includes: when the elevator is in the inspection floor and the elevator door is kept in an open state, if a floor calling signal is received, the elevator is controlled to run to the corresponding floor. With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the