A hall door lock fault positioning detection system and method for an elevator
By adding a circuit breaker signal generator and a fault detection switch to the elevator control system, and using a signal receiver to indicate the fault location, the problem of cumbersome elevator hall door lock fault detection is solved, enabling rapid location and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CANNY ELEVATOR
- Filing Date
- 2026-03-30
- Publication Date
- 2026-07-24
Smart Images
Figure CN121929592B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of elevators, and more specifically, to a fault location and detection system and method for elevator hall door locks. Background Technology
[0002] Elevator hall door lock malfunction is a very common type of elevator malfunction. To determine the floor where the malfunction occurs, elevator professionals typically enter the car top and use a multimeter to check the hall door lock circuit floor by floor using continuity or voltage methods. This allows them to locate the fault and troubleshoot the problem.
[0003] When existing elevator hall door locks malfunction and the elevator stops, it is generally necessary to use a multimeter to check the hall door lock circuit floor by floor. This process is cumbersome, requires highly skilled personnel, and has low maintenance efficiency. Summary of the Invention
[0004] The present invention aims to solve the problem of difficulty in detecting and repairing existing elevator hall door locks when they malfunction.
[0005] To address the aforementioned problems, this invention provides an elevator hall door lock fault location and detection system, comprising a main control board, a main control interface board, and a circuit breaker signal receiver;
[0006] The main control board is communicatively connected to the main control interface board. The main control interface board is equipped with a circuit breaker signal generator, and the fault signal output terminal of the circuit breaker signal generator is communicatively connected to the input terminal of the main control board.
[0007] The output of the circuit breaker signal generator is connected to one end of the hall door fault detection switch SDJC; the hall door fault detection switch SDJC is connected to the circuit breaker signal receiver via plug-in HC.
[0008] The main control board JP1.9 is connected to one end of the main control interface board S3-J09 via lead wire 129, and the other end of the main control interface board S3-J09 is connected to the fault signal output terminal of the circuit breaker signal generator inside the main control interface board.
[0009] The JP1.4 port of the main control board is connected to one end of the main control interface board S3-J04 via lead wire 118, and the other end of the main control interface board S3-J04 is connected to the plug-in HC-J02 via the normally closed contact 11-12 of the hall door fault detection switch SDJC.
[0010] The JP1.3 port of the main control board is connected to one end of the main control interface board S3-J03 via lead wire 116, and the other end of the main control interface board S3-J03 is connected to the plug-in HC-J01 via the normally closed contact 1-2 of the hall door fault detection switch SDJC.
[0011] The lead wire of the plug-in HC-J02 terminal is connected in sequence to the switch SMH in the circuit breaker signal receiver installed in the elevator hall doors from the top floor to the bottom floor, and the switch SMH1 in the circuit breaker signal receiver of the bottom floor elevator is connected to the plug-in HC-J01 terminal.
[0012] The JP1.2 port of the main control board is connected to one end of the main control interface board S3-J02, and the other end of the main control interface board S3-J02 is connected to the JP1.1 port of the main control board through the normally open contacts 13-14 of the hall door fault detection switch SDJC.
[0013] One signal terminal of the circuit breaker signal generator is connected to the HC-J01 terminal via the normally open contact 3-4 of the hall door fault detection switch SDJC.
[0014] The other signal terminal of the circuit breaker signal generator is connected to the plug-in HC-J02 terminal via the normally closed contact 23-24 of the hall door fault detection switch SDJC.
[0015] The present invention provides a fault location and detection system and method for elevator hall door locks, which, compared with the prior art, has the following beneficial effects, but are not limited to:
[0016] This invention is based on the principle of a circuit breaker for finding breakpoints and is applied to an elevator control system. A circuit breaker signal generator is added to the main control interface board of the control system. When the elevator door lock circuit is interrupted, the hall door fault detection switch SDJC is activated. The main control board detects the activation of the hall door lock fault detection switch. At this time, the system only detects the service floor. The circuit breaker signal generator connects to the door lock circuit and sends a signal. The circuit breaker signal receiver is installed on the car door lintel near the hall door lock contact point and moves with the car. Elevator maintenance personnel bypass the elevator hall door and move the car via emergency electric or car top inspection. The circuit breaker signal receiver moves with the car; as the car gets closer to the hall door... When the door lock is in the contact position, the signal receiver will emit a unique continuous "whooshing" sound, which is louder the closer it is. The sound is loudest when the elevator is leveling. The signal receiver receives the hall door lock detection signal, and the circuit breaker signal generator will not output a fault. When the car moves to the level position of the faulty floor, the circuit breaker signal receiver will not receive the hall door lock detection signal and will not emit a continuous "whooshing" sound. The circuit breaker signal generator will output a fault, and the main control board will display and record the faulty floor. When the elevator maintenance personnel reach the faulty floor, they can remove the signal receiver, move the signal receiver along the cable path, and further confirm the location of the break point by listening to the sound from the signal receiver, thus eliminating the fault.
[0017] In this invention, the main control interface board of the elevator control system is equipped with a circuit breaker signal generator and a hall door fault detection switch. A detachable circuit breaker signal receiver is installed on the elevator car door lintel, parallel to the hall door lock contact. The circuit breaker signal generator is connected to the switch and the hall door lock circuit. The circuit breaker signal receiver moves with the elevator car. When the signal receiver passes the hall door lock contact, it is determined whether the signal generator can receive the signal. The signal generator feeds back to the elevator main control board and whether the signal receiver emits an audible sound, thus forming a detection of the door lock circuit.
[0018] When the elevator of this invention experiences a hall door malfunction, whether it is a door lock contact failure, a hall door that cannot be closed, or a door lock circuit breakage, the location of the breakage in the door lock circuit can be quickly located, and the faulty floor can be displayed and recorded. This simplifies the operation and maintenance process for elevator professionals, improves maintenance efficiency, and refines the elevator operation data.
[0019] When an elevator hall door malfunctions, whether it's a door lock contact failure, a hall door that won't close, or a door lock circuit breakage, this invention can help elevator professionals quickly locate the fault and improve maintenance efficiency. It also displays and records the faulty floor, providing detailed elevator operation data. This invention is designed based on the electrical characteristics of elevators, making it easy to operate and highly versatile.
[0020] Furthermore, another signal terminal of the circuit breaker signal generator is connected to the plug-in HC-J02 terminal via the normally closed contact 23-24 of the hall door fault detection switch SDJC.
[0021] Furthermore, the grounding terminal of the plug-in HC is connected to the ground wire PE.
[0022] A method for locating and detecting faults in elevator hall door locks, the steps of which are as follows:
[0023] S1. Start the elevator, display the elevator's normal status, and ensure the elevator continues to run;
[0024] S2. When the elevator hall door lock circuit is not open, it means that the elevator has malfunctioned and the elevator will stop operating.
[0025] S3, System Switch Hall Door Fault Detection Switch SDJC, detects specific fault points in the elevator;
[0026] S4. By bypassing the elevator, move the car to ensure that the elevator car stops running on the nearest upper or lower floor;
[0027] S5. The circuit breaker signal generator in the system outputs a fault signal;
[0028] S6. The main control board received a hall door fault signal;
[0029] S7. The main control board detects that the car is level with the service floor; at the same time, it displays the faulty floor.
[0030] S8. Maintenance personnel troubleshoot the elevator based on the displayed faulty floor.
[0031] S9. After the elevator maintenance is completed, return to step S1 and continue operating the elevator. Attached Figure Description
[0032] Figure 1 This is a system framework diagram of the elevator hall door lock fault location and detection system according to an embodiment of the present invention;
[0033] Figure 2 This is a flowchart of a method for locating and detecting faults in elevator hall door locks according to an embodiment of the present invention. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.
[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the specification of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the specification, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0036] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0038] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.
[0039] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0040] See Figure 1 An elevator hall door lock fault location and detection system according to an embodiment of the present invention includes a main control board, a main control interface board and a circuit breaker signal receiver;
[0041] The main control board is communicatively connected to the main control interface board. The main control interface board is equipped with a circuit breaker signal generator, and the fault signal output terminal of the circuit breaker signal generator is communicatively connected to the input terminal of the main control board.
[0042] The output of the circuit breaker signal generator is connected to one end of the hall door fault detection switch SDJC; the hall door fault detection switch SDJC is connected to the circuit breaker signal receiver via plug-in HC.
[0043] The main control board JP1.9 is connected to one end of the main control interface board S3-J09 via lead wire 129, and the other end of the main control interface board S3-J09 is connected to the fault signal output terminal of the circuit breaker signal generator inside the main control interface board.
[0044] The JP1.4 port of the main control board is connected to one end of the main control interface board S3-J04 via lead wire 118, and the other end of the main control interface board S3-J04 is connected to the plug-in HC-J02 via the normally closed contact 11-12 of the hall door fault detection switch SDJC.
[0045] The JP1.3 port of the main control board is connected to one end of the main control interface board S3-J03 via lead wire 116, and the other end of the main control interface board S3-J03 is connected to the plug-in HC-J01 via the normally closed contact 1-2 of the hall door fault detection switch SDJC.
[0046] The lead wire of the plug-in HC-J02 terminal is connected in sequence to the switch SMH in the circuit breaker signal receiver installed in the elevator hall doors from the top floor to the bottom floor, and the switch SMH1 in the circuit breaker signal receiver of the bottom floor elevator is connected to the plug-in HC-J01 terminal.
[0047] The JP1.2 port of the main control board is connected to one end of the main control interface board S3-J02, and the other end of the main control interface board S3-J02 is connected to the JP1.1 port of the main control board through the normally open contacts 13-14 of the hall door fault detection switch SDJC.
[0048] One signal terminal of the circuit breaker signal generator is connected to the HC-J01 terminal via the normally open contact 3-4 of the hall door fault detection switch SDJC.
[0049] The other signal terminal of the circuit breaker signal generator is connected to the plug-in HC-J02 terminal via the normally closed contact 23-24 of the hall door fault detection switch SDJC.
[0050] The process of ensuring the communication connection between the main control board and the hall door fault detection switch SDJC in this invention facilitates the subsequent transmission of fault information and helps to troubleshoot elevator faults.
[0051] This invention works in conjunction with the JP1.4 port of the main control board to ensure the communication connection between the main control board and the hall door fault detection switch SDJC, facilitating the transmission of subsequent fault information and aiding in the subsequent troubleshooting of elevator faults.
[0052] In this invention, the JP1.4 port of the main control board is connected to the main control interface board S3-J04 via lead-out line 118, and then connected to the normally closed contact 11-12 of the hall door fault detection switch SDJC, to the plug-in HC-J02. The lead-out line of HC-J02 goes down from the top layer to the bottom layer and returns to HC-J01. HC-J01 is connected to another normally closed contact 1-2 of the hall door fault detection switch SDJC, and then connected to S3-J03, and finally returns to the main control board JP1.3, forming an elevator hall door lock detection circuit.
[0053] In this invention, when a fault occurs in the hall door circuit, the hall door fault detection switch SDJC is switched, and the normally open contacts 13-14 of the hall door fault detection switch SDJC are closed. The main control board JP1.2 detects the action of the hall door fault detection switch.
[0054] In this invention, the normally closed contacts 11-12 and 1-2 of the hall door fault detection switch SDJC are open, and the normally open contact 3-4 is closed. The circuit breaker signal generator is connected to contact 3-4 of the hall door fault detection switch SDJC, and then to plugs HC-J01 and HC-J02, connecting to the hall door lock circuit. The signal receiver moves with the car, emitting a unique continuous sound each time it passes the leveling position of a service floor. When it passes the leveling position of a faulty floor, the signal receiver does not receive a signal and does not emit a "whoosh" sound.
[0055] In this invention, the normally closed contacts 11-12 and 1-2 of the hall door fault detection switch SDJC are open, while the normally open contacts 3-4 and 23-24 are closed. The circuit breaker signal generator connects to contacts 3-4 and 23-24 of the hall door fault detection switch SDJC, and then to plugs HC-J01 and HC-J02, connecting to the hall door lock circuit. The signal receiver moves with the car, emitting a unique continuous sound each time it passes the leveling position of a service floor. When passing the leveling position of a faulty floor, the signal receiver does not receive a signal and does not emit a "whoosh" sound.
[0056] This invention is based on the principle of a circuit breaker for finding breakpoints and is applied to an elevator control system. A circuit breaker signal generator is added to the main control interface board of the control system. When the elevator door lock circuit is interrupted, the hall door fault detection switch SDJC is activated. The main control board detects the activation of the hall door lock fault detection switch. At this time, the system only detects the service floor. The circuit breaker signal generator connects to the door lock circuit and sends a signal. The circuit breaker signal receiver is installed on the car door lintel near the hall door lock contact point and moves with the car. Elevator maintenance personnel bypass the elevator hall door and move the car via emergency electric or car top inspection. The circuit breaker signal receiver moves with the car; as the car gets closer to the hall door... When the door lock is in the contact position, the signal receiver will emit a unique continuous "whooshing" sound, which is louder the closer it is. The sound is loudest when the elevator is leveling. The signal receiver receives the hall door lock detection signal, and the circuit breaker signal generator will not output a fault. When the car moves to the level position of the faulty floor, the circuit breaker signal receiver will not receive the hall door lock detection signal and will not emit a continuous "whooshing" sound. The circuit breaker signal generator will output a fault, and the main control board will display and record the faulty floor. When the elevator maintenance personnel reach the faulty floor, they can remove the signal receiver, move the signal receiver along the cable path, and further confirm the location of the break point by listening to the sound from the signal receiver, thus eliminating the fault.
[0057] In this invention, the main control interface board of the elevator control system is equipped with a circuit breaker signal generator and a hall door fault detection switch. A detachable circuit breaker signal receiver is installed on the elevator car door lintel, parallel to the hall door lock contact. The circuit breaker signal generator is connected to the switch and the hall door lock circuit. The circuit breaker signal receiver moves with the elevator car. When the signal receiver passes the hall door lock contact, it is determined whether the signal generated by the signal generator can be received. The signal generator feeds back to the elevator main control board and whether the signal receiver emits an audible sound, thus forming a detection of the door lock circuit.
[0058] When the elevator of this invention experiences a hall door malfunction, whether it is a door lock contact failure, a hall door that cannot be closed, or a door lock circuit breakage, the location of the breakage in the door lock circuit can be quickly located, and the faulty floor can be displayed and recorded. This simplifies the operation and maintenance process for elevator professionals, improves maintenance efficiency, and refines the elevator operation data.
[0059] When an elevator hall door malfunctions, whether it's a door lock contact failure, a hall door that won't close, or a door lock circuit breakage, this invention can help elevator professionals quickly locate the fault and improve maintenance efficiency. It also displays and records the faulty floor, providing detailed elevator operation data. This invention is designed based on the electrical characteristics of elevators, making it easy to operate and highly versatile.
[0060] When the circuit breaker signal generator detects a circuit breaker fault in the elevator hall door lock, the circuit breaker signal generator outputs a fault to the main control board JP1.9. The main control board detects the hall door fault signal, displays and records the faulty floor, thus forming a hall door lock fault detection loop.
[0061] Furthermore, the grounding terminal of the plug-in HC is connected to the ground wire PE.
[0062] The ground wire PE ensures the safety of the plug-in HC during operation, protects personal safety, and prevents electric shock accidents.
[0063] like Figure 2 As shown, a method for locating and detecting faults in elevator hall door locks includes the following steps:
[0064] S1. Start the elevator, display the elevator's normal status, and ensure the elevator continues to run;
[0065] S2. When the elevator hall door lock circuit is not open, it means that the elevator has malfunctioned and the elevator will stop operating.
[0066] S3, System Switch Hall Door Fault Detection Switch SDJC, detects specific fault points in the elevator;
[0067] S4. By bypassing the elevator, move the car to ensure that the elevator car stops running on the nearest upper or lower floor;
[0068] S5. The circuit breaker signal generator in the system outputs a fault signal;
[0069] S6. The main control board received a hall door fault signal;
[0070] S7. The main control board detects that the car is level with the service floor; at the same time, it displays the faulty floor.
[0071] S8. Maintenance personnel troubleshoot the elevator based on the displayed faulty floor.
[0072] S9. After the elevator maintenance is completed, return to step S1 and continue operating the elevator.
[0073] In this invention, S1 establishes the normal operating baseline state of the elevator. This step is to confirm that all elevator systems and displays are functioning normally before a fault occurs, ruling out shutdowns caused by false alarms or other reasons not related to door locks. It ensures that fault detection begins from a stable, known good state, avoiding misjudgments in subsequent detection.
[0074] S2 is the fault triggering phase. The hall door lock is a safety circuit connected in series with all hall doors. If even one door is not properly closed or the door lock contacts malfunction, the entire circuit will break, and the elevator will immediately stop operating. This ensures passenger safety at the first opportunity, preventing the elevator from operating with unlocked doors and avoiding shearing or falling accidents.
[0075] S3 switches the elevator's control system from "normal operation mode" to "fault detection mode." This "detection switch" may be a dedicated maintenance or diagnostic function used to bypass the safety logic for further troubleshooting. It allows maintenance personnel to safely bypass the normal safety stop logic and initiate diagnostic procedures in a controlled environment, rather than leaving the elevator in a frozen, inoperable state.
[0076] S4 ensures the elevator car stops at the nearest upper or lower floor. Move the car to the appropriate location. Because hall door lock malfunctions are often related to floor location, moving the car may be to stop it near the faulty floor or to facilitate access to the shaft or control cabinet for maintenance personnel. Avoid stopping the car between two floors to facilitate access to the potential fault point for maintenance personnel, whether from the car top or via external call, in preparation for the next step of signal testing.
[0077] S5 can manually or automatically inject / identify fault characteristics into the system. Here, "generator" may refer to diagnostic tools or a built-in self-test program that outputs specific pulse signals or query commands to detect the exact location of the break in the door lock circuit. By actively sending signals, changing from "passive waiting" to "active detection," it is possible to more accurately pinpoint which lock on which floor is malfunctioning.
[0078] The S6 elevator's main control board receives feedback signals from the detection system. These signals are no longer simple "loop continuity" signals, but instead contain specific fault characteristic codes or floor information. Converting physical faults into digital signals, i.e., fault codes, provides the data foundation for subsequent accurate display.
[0079] The S7 combines position sensors and fault signals, and the main control board calculates the specific floor where the fault occurs, displaying the result on the human-machine interface. This direct location of the fault to a specific floor greatly narrows the scope of troubleshooting.
[0080] S8 maintenance personnel, equipped with tools, went directly to the target floor to repair or replace the contacts, wiring, and mechanical jamming of the hall door locks. This eliminated the tedious step of checking each floor individually, reduced the time spent climbing stairs and working at heights, and improved maintenance efficiency and safety.
[0081] The S9 reset system exits the detection mode and is put back into use. This establishes a closed-loop management system, confirming that the fault has been resolved and the elevator returns to normal service.
[0082] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A fault location and detection system for elevator hall door locks, characterized in that, Includes the main control board, main control interface board, and circuit breaker signal receiver; The main control board is communicatively connected to the main control interface board. The main control interface board is equipped with a circuit breaker signal generator, and the fault signal output terminal of the circuit breaker signal generator is communicatively connected to the input terminal of the main control board. The output of the circuit breaker signal generator is connected to one end of the hall door fault detection switch SDJC; the hall door fault detection switch SDJC is connected to the circuit breaker signal receiver via plug-in HC. The main control board JP1.9 is connected to one end of the main control interface board S3-J09 via lead wire 129, and the other end of the main control interface board S3-J09 is connected to the fault signal output terminal of the circuit breaker signal generator inside the main control interface board. The JP1.4 port of the main control board is connected to one end of the main control interface board S3-J04 via lead wire 118, and the other end of the main control interface board S3-J04 is connected to the plug-in HC-J02 via the normally closed contact 11-12 of the hall door fault detection switch SDJC. The JP1.3 port of the main control board is connected to one end of the main control interface board S3-J03 via lead wire 116, and the other end of the main control interface board S3-J03 is connected to the plug-in HC-J01 via the normally closed contact 1-2 of the hall door fault detection switch SDJC. The lead wire of the plug-in HC-J02 terminal is connected in sequence to the switch SMH in the circuit breaker signal receiver installed in the elevator hall doors from the top floor to the bottom floor, and the switch SMH1 in the circuit breaker signal receiver of the bottom floor elevator is connected to the plug-in HC-J01 terminal. The JP1.2 port of the main control board is connected to one end of the main control interface board S3-J02, and the other end of the main control interface board S3-J02 is connected to the JP1.1 port of the main control board through the normally open contacts 13-14 of the hall door fault detection switch SDJC. One signal terminal of the circuit breaker signal generator is connected to the HC-J01 terminal via the normally open contact 3-4 of the hall door fault detection switch SDJC. The other signal terminal of the circuit breaker signal generator is connected to the plug-in HC-J02 terminal via the normally closed contact 23-24 of the hall door fault detection switch SDJC.
2. The elevator hall door lock fault location and detection system according to claim 1, characterized in that, The grounding terminal of the plug-in HC is connected to the ground wire PE.
3. The method for locating and detecting elevator hall door lock faults as described in any one of claims 1-2, characterized in that, The method and steps are as follows: S1. Start the elevator, display the elevator's normal status, and ensure the elevator continues to run; S2. When the elevator hall door lock circuit is not open, it means that the elevator has malfunctioned and the elevator will stop operating. S3, System Switch Hall Door Fault Detection Switch SDJC, detects specific fault points in the elevator; S4. By bypassing the elevator, move the car to ensure that the elevator car stops running on the nearest upper or lower floor; S5. The circuit breaker signal generator in the system outputs a fault signal; S6. The main control board received a hall door fault signal; S7. The main control board detects that the car is level with the service floor; at the same time, it displays the faulty floor. S8. Maintenance personnel troubleshoot the elevator based on the displayed faulty floor. S9. After the elevator maintenance is completed, return to step S1 and continue operating the elevator.