KR102556783B1 - Method and computer readable medium for elevator safety system - Google Patents

Abstract

According to various embodiments of the present disclosure, a method performed in one or more computing devices included in an elevator safety system comprises: a step of identifying an abnormality from a detection value of an elevator car sensor (230) installed in an elevator car (21) and configured to detect a position of the elevator car (21); a step of identifying whether there is an error; and a step of determining an abnormality. A safety accident can be prevented.

Description

Method and computer readable medium for elevator safety system { METHOD AND COMPUTER READABLE MEDIUM FOR ELEVATOR SAFETY SYSTEM}

The present disclosure relates to a method and computer readable medium for an elevator safety system.

In general, elevators have safety provisions for suspension members, such as ropes or equivalent members, and are equipped with safety systems for this. For example, looking at Korean Patent Registration No. 10-250731 as a known technology for elevator safety, in a high-rise elevator with a long suspension member, the suspension member is very Disclosed is a suspension facility that is adjusted to have sufficient tension.

However, in a complex elevator system, elevator failure and safety accidents can occur in various ways, such as failure of the governor as well as the suspension, aging of the rope, and damage to the elevator car and guide rail, so a comprehensive elevator safety system to prevent them. need this

The present disclosure is to provide an elevator safety system that monitors abnormal signs capable of preventing complex safety accidents through sensors including various sensors as a means of solving the above-described problems.

The technical problem to be achieved in this document is not limited to the above-mentioned technical problem, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. .

According to various embodiments of the present disclosure, a method performed in one or more computing devices included in an elevator safety system, wherein an elevator 20 includes an elevator car 21, a governor 22 and a rope 23, wherein the The elevator car 21 can move up and down with respect to the guide rail 25, the governor 22 includes an upper sheave 22a and a lower sheave 22b, and the rope 23 is the upper sheave ( 22a) and the lower sheave 22b, and the method includes: an abnormal sign from the detection value of the elevator car sensor 230 installed in the elevator car 21 and configured to detect the position of the elevator car 21 identifying; Each detection value of the sheave sensor 210 configured to detect the amount of rotation of any one of the upper sheave 22a and the lower sheave 22b and the rope sensor 220 configured to detect the amount of movement of the rope 23 identifying if there is an error from; When an error is identified from the detected values of the sheave sensor 210 and the rope sensor 220, determining an abnormal symptom indicating that there is an abnormality in any one of the governor 22 and the rope 23; And when errors are not identified from the detection values of the sheave sensor 210 and the rope sensor 220, in an elevation section different from the abnormal elevation section in which abnormal symptoms are identified from the detection values of the elevator car sensor 230. Detection values of the sheave sensor 210, rope sensor 220, and elevator car sensor 230 are collected, and any one of the guide rail 25 and the rope 23 is determined based on the collected detection values. A method performed in one or more computing devices included in an elevator safety system may be provided, including determining an abnormal symptom for each section.

In addition, the elevator car sensor 230 includes an upper car sensor 231 installed on the roof of the elevator car 21 and a lower car sensor 232 installed on the bottom surface of the elevator car 21, The upper sensor 231 and the lower car sensor 232 are installed to face each other when viewed in the width direction of the elevator car 21, and the method is Further comprising comparing the detection values to determine whether the imbalance of the elevator car 21 is identified, and if the imbalance of the elevator car 21 is identified, identifying an abnormal symptom from the detection value of the elevator car sensor The detection values of the sheave sensor, the rope sensor, and the elevator car sensor in an elevation section different from the abnormal elevation section are collected, and an abnormal sign for each section of the guide rail and the rope is determined based on the collected detection values. is performed, and when the imbalance of the elevator car 21 is not identified, a sheave sensor configured to detect a rotation amount of any one of the upper sheave and the lower sheave and a rope sensor configured to detect a movement amount of the rope A method performed in one or more computing devices included in an elevator safety system may be provided, in which the step of identifying whether there is an error from each detected value of is performed.

In addition, the elevator safety system 10 further includes a weighing device 250 for detecting the load of the elevator car 21, and the method further comprises, when an imbalance of the elevator car 21 is identified, the weighing device Based on the detection value of 250, determining whether a passenger has boarded the elevator car 21; and when it is determined that a passenger has boarded the elevator car 21, the sheave sensor, rope sensor, and elevator car sensor in an elevation section different from the abnormal elevation section after all passengers get off the elevator car 21. Collecting detection values of and determining abnormal signs for each section of any one of the guide rail and the rope based on the collected detection values, If it is determined that the upper sheave and the lower sheave are configured to detect the amount of rotation of any one of the sheave sensor and the rope sensor configured to detect the amount of movement of the rope, the step of identifying whether there is an error from each detected value is performed The step of collecting the detection values of the elevator car sensors, and determining the abnormal symptoms for each section of the guide rail and the rope based on the collected detection values is performed, and one included in the elevator safety system is performed. A method performed in the above computing device may be provided.

In addition, the elevator car sensor 230 further includes another upper car sensor 231 and another lower car sensor 232 installed opposite to each other when viewed in the longitudinal direction of the elevator car 21, the elevator A method may be provided that is performed on one or more computing devices included in a safety system.

1 is a block diagram of an elevator safety system 10 according to various embodiments of the present disclosure.
2 shows an elevator 20 to which an elevator safety system 10 according to various embodiments of the present disclosure is applied.
3 is a conceptual diagram of an elevator 20 to which an elevator safety system 10 according to various embodiments of the present disclosure is applied.
4 to 6 show processes for monitoring abnormal symptoms of an elevator performed in an elevator safety system according to various embodiments of the present disclosure.
7 illustrates another example in which an upper car sensor and a lower car sensor of an elevator car sensor are installed in an elevator according to various embodiments of the present disclosure.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B," "A, B or C," "at least one of A, B and C," and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited.

According to various embodiments, each of the above-described components may include a single entity or a plurality of entities. According to various embodiments, one or more components or operations among the aforementioned corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components may be integrated into one component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by a corresponding component of the plurality of components prior to the integration. .

1 is a block diagram of an elevator safety system 10 according to various embodiments of the present disclosure.

Referring to FIG. 1 , the elevator safety system 10 may include a sensor unit 200 and an elevator control system 300 .

In various embodiments of the present disclosure, the elevator anomaly symptom detection unit 100 may include a signal reception unit 110 and an anomaly symptom determination unit 120 .

The signal receiving unit 110 may receive detection values detected by a plurality of sensors included in the sensor unit 200 .

The abnormal symptom determination unit 120 may determine an abnormal symptom of the elevator using the detection value received by the signal receiving unit 110 . When the abnormal symptom determination unit 120 determines an abnormal symptom of the elevator, a signal indicating this may be transmitted to the elevator control system 300 . When the elevator control system 300 receives a signal indicating an abnormal symptom of the elevator from the elevator abnormal symptom detection unit 100 (or abnormal symptom determination unit 120), the elevator may be controlled based on this signal. In one embodiment, when the abnormal symptom determination unit 120 determines an abnormal symptom of the elevator, a signal representing the abnormal symptom is transmitted to a portable device (eg, a smart phone) of the manager of the elevator safety system 10. can

The sensor unit 200 may include a sheave sensor 210, a rope sensor 220, an elevator car sensor 230, a thermometer 240, and a scale device 250. Installation positions and detection values of each of the plurality of sensors included in the sensor unit 200 will be described with reference to FIG. 2 .

2 shows an elevator 20 to which an elevator safety system 10 according to various embodiments of the present disclosure is applied.

Referring to FIG. 2 , the elevator 20 may include an elevator car 21 (or a lift room), an overspeed governor 22, a rope 23, and a guide frame 24. Although not shown, as a driving mechanism necessary for the operation of the elevator 20, components such as a motor, a traction machine, a counterweight, a deflector sheave and a guide rail are It is obvious to those skilled in the art that more may be included.

A pair of guide rails (not shown) may be installed on both sides of the elevator car 21 to extend vertically along the hoistway through which the elevator car 21 ascends or descends. As the guide frame 24 connected to the elevator car 21 slides along the guide rail, the elevator car 21 can move up and down.

The speed governor 22 is a safety device used in the elevator 20 and may function to control the speed of the elevator car 21 and prevent it from moving too quickly or falling freely in case of malfunction. For example, when the speed governor 22 exceeds a certain speed, a safety brake is operated to stop the elevator car 21, thereby preventing the elevator car 21 from colliding with another structure or injuring a passenger in the elevator car 21. can help prevent

The governor 22 may include an upper sheave 22a and a lower sheave 22b, and a rope 23 may be wound around the upper sheave 22a and the lower sheave 22b. The rope 23 may have a closed loop or ring shape. In other words, the rope 23 may be without an end.

The rope 23 may include a cable made of metal. Rope 23 may be secured to elevator car 21 at one or more locations. For example, the elevator car 21 may be connected to the rope 23 through the connecting member 24a. In one embodiment, the connecting member 24a may be installed on the guide frame 24, and the elevator car 21 and the rope 23 may be connected to each other by the connecting member 24a of the guide frame 24. there is.

The rope 23 may move by rotation of the upper sheave 22a and/or the lower sheave 22b. In the present disclosure, the upper sheave 22a may be rotatable by receiving a driving force. By controlling the rotation direction and speed of the upper sheave 22a, the speed of the rope 23 and the fixed elevator car 21 and the ascending and descending can be controlled. In addition, a brake system may be provided in the upper sheave 22a and/or the lower sheave 22b to stop the elevator car 21 from rising or descending in an emergency. In the illustrated example, the upper sheave 22a may include a brake system.

According to various embodiments of the present disclosure, the sheave sensor 210 may obtain one or more of the rotational speed, rotational angle, and rotational amount of the upper sheave 22a and/or the lower sheave 22b as a detection value. In the illustrated example, the sheave sensor 210 may be an encoder sensor that detects one or more of the rotational speed, rotational angle, and rotational amount of the upper sheave 22a. Encoders may include optical encoders, magnetic or capacitive encoders. In the illustrated example, the sheave sensor 210 may be an optical encoder installed outside the upper sheave 22a.

The rope sensor 220 may obtain at least one of a movement amount and a movement direction of the rope 23 wound around the upper sheave 22a and the lower sheave 22b of the speed governor 22 as a detection value. In the illustrated example, the rope sensor 220 may be, for example, a linear displacement sensor installed on the upper frame side where the upper sheave 22a is installed to detect at least one of the moving amount and the moving direction of the rope 23. The linear displacement sensor may include a potentiometer sensor, a magnetostrictive sensor, and may be any sensor available to a person skilled in the art.

The elevator car sensor 230 is a sensor installed on the elevator car 21 and may be a sensor that measures the absolute position (or height) of the elevator car 21 . The elevator car sensor 230 may be installed outside the elevator car 21 and may be divided into an upper car sensor 231 and a lower car sensor 232 according to the installed position. The upper car sensor 231 may be installed on the roof of the elevator car 21, and the lower car sensor 232 may be installed on the bottom of the elevator car 21. The upper car sensor 231 may detect the position of the upper part of the elevator car 21 , and the lower car sensor 232 may detect the position of the lower part of the elevator car 21 .

The elevator car sensor 230 may include optical, laser, ultrasonic, and infrared sensors using a time-of-flight (TOF) measurement principle. As another example, the upper car sensor 231 measures the position of the elevator car 21 through interaction with another sensor member installed on a structure (eg, guide rail) installed outside the elevator car 21. A capacitive sensor or an inductive sensor may be included.

The thermometer 240 may measure the temperature of an environment in which the governor 22 and the rope 23 are installed outside the elevator car 21 . As a metal cable, the strength and stiffness of the rope 23 may decrease as the temperature rises, while the ductility and elongation may increase. The weighing device 250 may be installed in the elevator car 21 . The scale device 250 may detect the load of the elevator car 21 . Detection values detected by the thermometer 240 and the scale device 250 may be used to correct detection values detected by other sensors of the sensor unit 200, and through this, the accuracy of determining whether there is an abnormality may be increased.

Elevator control system 300 may include general and conventional components responsible for elevator operation. For example, the elevator control system 300 may include a control panel, a motor, a gear box and a brake system. The control panel of the elevator control system 300 receives an input from the passenger about the floor to go to, and the elevator control system 300 responds to the passenger's input, and the gearbox and brake system operate together to operate the elevator car. It can be operated to raise or lower. A detailed description of the elevator control system 300 will be omitted.

Elevator anomaly symptom detection unit 100 may include one or more computing devices including one or more processors and memories. One or more computing devices included in the elevator anomaly detection unit 100 may include an operating system that provides executable program instructions for normal and general management and operation, and typically, the elevator anomaly detection unit 100 It may include a computer-readable storage medium (eg, hard disk, random access memory, read only memory, etc.) storing instructions that, when executed by a processor, allow it to perform its intended functions. Suitable implementations for operating systems and general functionality of servers are known or commercially available and can be readily implemented by those skilled in the art of the present disclosure.

Meanwhile, the elevator abnormal symptom detection unit 100, the sensor unit 200, and the elevator control system 300 included in the elevator safety system 10 may transmit and receive signals, information, and data through a network. The network may include any suitable network, including an intranet, the Internet, a cellular network, a local area network, or any such network or combination thereof. The components used for the elevator safety system 10 of this disclosure may depend, at least in part, on the type of network and/or selected environment. The protocols and components for communicating over a network are well known and need not be discussed in detail here. Communication over the network may be facilitated by wired or wireless connections and combinations thereof.

Hereinafter, as a service of the elevator safety system 10 according to various embodiments of the present disclosure, processes for monitoring an abnormal symptom of an elevator will be described. In the following description, FIG. 3 schematically showing the elevator 20 disclosed in FIG. 2 will be used. 3 is a conceptual diagram of an elevator 20 to which an elevator safety system 10 according to various embodiments of the present disclosure is applied.

4-6 illustrate processes 400, 500, and 600 for monitoring elevator anomalies performed in elevator safety system 10 according to various embodiments of the present disclosure.

Referring first to FIG. 4 , in the process 400 according to various embodiments of the present disclosure, the elevator anomaly symptom detection unit 100 (or the signal reception unit 110) receives information from the elevator car sensor 230 of the sensor unit 200. It may start at step 410 of identifying an anomaly from the received detection value.

An abnormal symptom identified from the detection value received from the elevator car sensor 230 is, for example, when the position of the elevator car 21 detected by the elevator car sensor 230 is not a designated position, an abnormal symptom can be identified. Specifically, the elevator control system 300 may transmit a request signal or a control signal for moving the elevator car 21 to a target position to a drive device such as the speed governor 22, which is driven in response to such a control signal. Even when the device is driven, when the elevator car 21 is identified as being located outside the error range from the target position based on the detection value of the elevator car sensor 230, it can be said that an abnormal symptom has been identified.

In a separate embodiment, the elevator control system 300 may, based on the detected values of the elevator car sensors 230, detect that the elevator car 21 is not located at a position substantially equal to the target position, in other words, the target position. When it is identified that the position is outside a predetermined error range, the driving device may be controlled again to control the elevator car 21 to move to the target position.

In step 420, the elevator abnormal symptom detection unit 100 (or abnormal symptom determination unit 120) may identify whether there is an error in the detected values of the sheave sensor 210 and the rope sensor 220. To this end, the signal receiving unit 110 may receive detection values from the sheave sensor 210 and the rope sensor 220 of the sensor unit 200 .

The error identified in the detected values of the sheave sensor 210 and the rope sensor 220 is, for example, the movement amount (d) of the rope based on the amount of rotation (r) of the upper sheave 22a detected by the sheave sensor 210. may be identified when they are not substantially equal, or when they are not equal beyond a predetermined margin of error.

In step 420, if the elevator anomaly symptom detection unit 100 identifies an error in the detected values of the sheave sensor 210 and the rope sensor 220, the process 400 may continue to step 440.

On the other hand, if the elevator anomaly symptom detection unit 100 identifies that there is no error in the detection values of the sheave sensor 210 and the rope sensor 220 in step 420, the process 400 may continue to step 430.

In step 430, the elevator abnormal symptom detection unit 100 detects the sheave sensor 210 when moving up and down in a different lifting section than the lifting section in which the abnormal symptom is identified from the detection value received from the elevator car sensor 230 in step 410. , detection values of the rope sensor 220 and the elevator car sensor 230 may be collected.

For example, referring to FIG. 4 , the elevator abnormal symptom detection unit 100 includes a sheave sensor 210 and a rope sensor 220 in an elevation section P2 other than the abnormal elevation section P1 in which an abnormal symptom is identified. ) and detection values of the elevator car sensor 230 may be collected. In one embodiment, in step 430, the elevator car sensor 230 may request the elevator control system 300 to lift the elevator car 21 in another lifting section P2.

In step 440, the elevator abnormal symptom detection unit 100 (or the abnormal symptom determination unit 120) may determine the type of abnormal symptom based on the detection value from the sensor unit 200.

For example, in step 420, if it is determined that there is an error in the detected values of the sheave sensor 210 and the rope sensor 220, i) a problem with the upper sheave 22a (or governor 22) as an abnormal sign. ii) an abnormal symptom with a problem with the rope 23, or a mutual relationship between the governor 22 and the rope 23, for example, an abnormal symptom with a problem with tension.

Specifically, based on the detected values of the sheave sensor 210 and the rope sensor 220, if the upper sheave 22a does not rotate by the target amount of rotation, it is judged as an abnormal sign that the upper sheave 22a has a problem. It can be. Alternatively, when the upper sheave 22a rotates by the target amount of rotation and the movement amount of the rope 23 does not reach the target value, the upper sheave 22a and/or the lower sheave 22b due to abrasion of the rope 23 ) It can be judged as abnormal signs such as lack of frictional force with the speed governor 22 and tension abnormality between the governor 22 and the rope 23.

In addition, in step 420, when it is determined that there is no error in the detected values of the sheave sensor 210 and the rope sensor 220, in step 440, abnormal signs are based on the detected values of the sensor unit 200 collected in step 430. type can be determined. For example, based on the detection values of the sensor unit 200 collected in step 430, when an abnormal sign is found only in the abnormal elevation section P1, a guide through which the elevator car 21 corresponding to the section slides An abnormal sign may be determined as there is an abnormality in the section of the rail 25 .

Conversely, when abnormal signs are identified in the other lifting section P2 based on the detection values of the sensor unit 200 collected in step 430, it is not a problem of the corresponding section, but a problem of the rope 23 itself, or the rope 23 itself. It can be determined as an abnormal sign indicating that there is a problem in the connection state of (23) and the elevator car 21 (for example, deformation or damage of the connecting member 24a).

That is, the elevator safety system 10 according to various embodiments of the present disclosure categorizes errors that may occur in the elevator 20 using a plurality of sensors included in the sensor unit 200 as described above to solve problems. It is easy to determine the cause of the occurrence. Diagnosis of such abnormal signs has the effect of preventing major accidents and enabling rapid response.

Meanwhile, in the process 400 in one embodiment, step 450 of transmitting a signal informing of the type of anomaly determined in step 440 may be selectively performed. For example, in step 450, the abnormal symptom determination unit 120 may transmit a signal indicating an abnormal symptom to a portable device (eg, a smart phone) of a manager of the elevator safety system 10. Alternatively, the abnormal symptom determining unit 120 transmits a signal indicating the type of abnormal symptom to a display (not shown) installed in the elevator safety system 10 for an abnormal symptom notification, so that the abnormal symptom can be informed through the corresponding display. can do.

Referring to FIG. 5 , in a process 500 according to various embodiments of the present disclosure, an elevator anomaly symptom detection unit 100 (or an anomaly symptom determination unit 120) is an upper car sensor included in an elevator car sensor 230 It can start at step 510 in which abnormal signs are identified from the detected values received from step 231 and the lower car sensor 232 .

The abnormal symptoms identified from the detected values received from the upper car sensor 231 and the lower car sensor 232 are, for example, one or more of the detected values from the upper car sensor 231 and/or the lower car sensor 232. If the position of the elevator car 21 detected by is not a designated position, an abnormal sign can be identified. Specifically, the elevator control system 300 may transmit a request signal or a control signal for moving the elevator car 21 to a target position to a drive device such as the speed governor 22, which is driven in response to such a control signal. Even when the device is driven, when the elevator car 21 is identified as being located outside the error range from the target position based on the detection value of the elevator car sensor 230, it can be said that an abnormal symptom has been identified.

Next, in step 520, the elevator abnormal symptom detection unit 100 compares detection values of the upper car sensor 231 and the lower car sensor 232 to determine whether an imbalance of the elevator car 21 is identified. Referring to FIG. 3 , the upper car sensor 231 and the lower car sensor 232 may be installed to face each other in the width direction w of the elevator car 21 . Accordingly, it is possible to determine whether the elevator car 21 is tilted or unbalanced by comparing values of the upper car sensor 231 and the lower car sensor 232 . Specifically, even if the detection value of the lower car sensor 232 matches the target position, when the detection value of the upper car sensor 231 does not match the target position, it is identified that the elevator car 21 has an imbalance. It can be.

In step 520, when it is determined that there is imbalance in the elevator car 21, step 540 may be followed in which detection values are collected in another elevator section. In this case, the process 500, at step 550, the elevator 20 has the elevator car 21 or the guide rail 25 that slides when the elevator car 21 goes up or down, or the elevator car 21 and the guide rail. (25) An abnormal symptom indicating that there is an abnormality in the connection structure between the two can be judged.

In step 520, if it is determined that there is no imbalance of the elevator car 21, step 530 may be performed, and step 530 may perform substantially the same operation as step 420 of process 400 of FIG. will be omitted.

That is, the elevator safety system 10 according to various embodiments of the present disclosure categorizes errors that may occur in the elevator 20 using a plurality of sensors included in the sensor unit 200 as described above, In particular, by preliminarily diagnosing an abnormal symptom of imbalance of the elevator car 21, a major accident is prevented and quick response is possible.

Referring to FIG. 6 , in a process 600 according to various embodiments of the present disclosure, an elevator anomaly symptom detection unit 100 (or an anomaly symptom determination unit 120) is an upper car sensor included in an elevator car sensor 230 231 and the detection value received from the lower car sensor 232 may start at step 610 in which abnormal symptoms are identified. Since step 620 below is substantially the same as step 520 described in process 500 of FIG. 5 , duplicate descriptions will be omitted.

In step 630, the elevator abnormal symptom detection unit 100 (or abnormal symptom determination unit 120) may determine whether a passenger has boarded the elevator car 21 based on the detection value of the scale device 250. there is. In step 630, when it is determined that a passenger has boarded the elevator car 21, after the passenger gets off, a test operation may be performed in another lifting section, not in the abnormal lifting section, in step 640. The passenger's getting off the elevator car 21 may be determined based on the detection value of the scale device 250 .

However, if it is determined in step 630 that no passenger is boarding the elevator car 21, step 530 of the process 500 may be continued.

That is, the elevator safety system 10 according to various embodiments of the present disclosure categorizes errors that may occur in the elevator 20 using a plurality of sensors included in the sensor unit 200 as described above, In particular, it is possible to determine whether an abnormality in the imbalance of the elevator car 21 is caused by a passenger boarding, thereby preventing a major accident by diagnosing an anomaly in advance and enabling quick response.

7 illustrates another example in which an upper car sensor 231 and a lower car sensor 232 of the elevator car sensor 230 are installed in the elevator 20 according to various embodiments of the present disclosure.

Referring to FIG. 7 , the elevator car 21 may include a first upper car sensor 231a, a second upper car sensor 231b, a first lower car sensor 232a, and a second lower car sensor 232b. can

The first upper car sensor 231a and the first lower car sensor 232a may be installed facing each other when viewed in the width direction w of the elevator car 21, and the second upper car sensor 231b and the second upper car sensor 231b The two-car lower sensors 232b may be installed facing each other when viewed in the longitudinal direction d of the elevator car 21 . Through this, the elevator abnormal symptom detection unit 100 (or abnormal symptom determination unit 120) of the present disclosure includes the first upper car sensor 231a, the second upper car sensor 231b, and the first lower car sensor 232a. And based on the detection values of each of the second lower car sensors 232b, the tilt of the elevator car 21 in the longitudinal direction (d) as well as the inclination in the width direction (w) of the elevator car 21 Imbalances can also be monitored.

Processes 400 to 600 described above may be performed by any one or more than one of one or more computing devices included in the elevator safety system 10 shown in FIGS. 1 to 3 . Processes 400-600 may include one or more actions, functions, or actions as illustrated by the blocks for describing them. Meanwhile, the schematic operations illustrated in FIGS. 4 to 6 are provided only as examples, and some of the operations may be optional, combined with fewer operations, or additional operations without departing from the essence of the disclosed embodiment. can be extended to Methods according to the embodiments described in the claims or specification of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software.

When implemented in software, a computer readable storage medium storing one or more programs (software modules) may be provided. One or more programs stored in a computer-readable storage medium are configured for execution by one or more processors in an electronic device. The one or more programs include instructions that cause the electronic device to execute methods according to embodiments recited in the claims or specification of this disclosure.

One or more such programs (software module, software) may include random access memory, non-volatile memory including flash memory, read only memory (ROM), and electrically erasable memory. Electrically Erasable Programmable Read Only Memory (EEPROM), magnetic disc storage device, optical storage devices such as Compact Disc-ROM (CD-ROM), Digital Versatile Disc (DVDs) : Digital Versatile Discs), magnetic cassettes, or a combination thereof. Alternatively, it may be stored in a memory composed of a combination of some or all of these. In addition, the program may be performed through a communication network such as the Internet, an Intranet, a Local Area Network (LAN), a Wide LAN (WLAN), or a Storage Area Network (SAN), or a communication network composed of a combination thereof. It can be stored on an attachable storage device that can be accessed. Such a storage device may be connected to a device performing an embodiment of the present disclosure through an external port. In addition, a separate storage device on a communication network may be connected to a device performing an embodiment of the present disclosure.

In the specific embodiments of the present disclosure described above, components of the electronic device included in the present disclosure are expressed in singular or plural numbers according to the specific embodiments presented. However, singular or plural expressions for the above components are selected appropriately for the presented situation for convenience of description, and the present disclosure is not limited to singular or plural components, even if the components are expressed in plural. Even components composed of a singular number or expressed in a singular number may be composed of a plurality.

Meanwhile, in the detailed description of the present disclosure, specific embodiments have been described, but various modifications are possible without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments and should not be defined, but should be defined by not only the scope of the claims to be described later, but also those equivalent to the scope of these claims.

The above description of the present application is for illustrative purposes, and those skilled in the art will understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present application. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

In the above, the object to be claimed in the present disclosure has been specifically examined. The subject matter claimed in this disclosure is not limited in scope to the specific implementations described above. For example, in some implementations it may be in the form of hardware operatively used on a device or combination of devices, in other implementations it may be implemented in the form of software and/or firmware, and in still other implementations it may be in the form of a signal bearing medium; It may include one or more items, such as storage media. Here, the storage medium, such as a CD-ROM, a computer disk, a flash memory, etc., when executed by a computing device, such as a computing system, a computing platform, or other system, may cause the corresponding processor to execute according to the implementation described above. can be saved. Such computing devices may include one or more processing units or processors, a display, one or more input/output devices such as a keyboard and/or mouse, and one or more memories such as static random access memory, dynamic random access memory, flash memory and/or hard drives. can include

In the foregoing detailed description, various embodiments of devices and/or processes have been described using block diagrams, flow diagrams, and/or other examples. Such block diagrams, flow diagrams, and/or other examples may include one or more functions and/or operations, and each function and/or operation in a block diagram, flow diagram, and/or other example may be hardware, software, firmware, or or any combination thereof, individually or collectively. In one embodiment, some portions of the subject matter described in this disclosure may be implemented via application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), digital signal processors (DSPs), or other forms of integration. In contrast, some aspects of embodiments of the present disclosure are directed to one or more computer programs running on one or more computers (eg, one or more programs running on one or more computer systems), one or more programs running on one or more processors (eg, one or more programs running on one or more computer systems). for example, one or more programs running on one or more microprocessors), firmware, or substantially any combination thereof, which may be implemented in whole or in part equivalently on an integrated circuit, writing code for software and/or firmware. and/or the design of the circuit is within the skill of those skilled in the art in light of this disclosure. Further, those skilled in the art will understand that the mechanisms of the present disclosure may be distributed in various forms of program product, and the examples of the present disclosure apply regardless of the specific type of signal bearing medium used to actually perform the distribution. will understand

While certain exemplary techniques have been described and illustrated herein using a variety of methods and systems, those skilled in the art will appreciate the possibility of various other modifications or equivalent substitutions without departing from the claimed subject matter. Additionally, many modifications may be made to adapt a particular situation to the teachings of claimed subject matter without departing from the central concept described herein. Thus, it is intended that the claimed subject matter is not limited to the specific examples disclosed, but that such claimed subject matter may also include all implementations falling within the scope of the appended claims and their equivalents.

The scope of the present disclosure is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof should be construed as being included in the scope of the present application. do.

Claims (5)

A method performed in one or more computing devices included in an elevator safety system for monitoring anomalies in an elevator,
The elevator includes an elevator car, a speed governor, and a rope, the elevator car can move up and down with respect to a guide rail, the speed governor includes an upper sheave and a lower sheave, and the rope is wound around the upper sheave and the lower sheave. as,
The method is:
identifying abnormal signs from detection values of an elevator car sensor installed in the elevator car and configured to detect a position of the elevator car;
Identifying whether there is an error from each detected value of a sheave sensor configured to detect a rotation amount of any one of the upper sheave and the lower sheave and a rope sensor configured to detect a movement amount of the rope;
When an error is identified from the detected values of the sheave sensor and the rope sensor, determining an abnormal symptom indicating that there is an abnormality in any one of the governor and the rope; and
When errors are not identified from the detection values of the sheave sensor and the rope sensor, the sheave sensor, rope sensor, and elevator car sensor in an elevation section different from the abnormal elevation section in which an abnormal symptom is identified from the detection values of the elevator car sensor Collecting detection values of and determining abnormal symptoms for each section of the guide rail and the rope based on the collected detection values,
A method performed on one or more computing devices included in an elevator safety system. According to claim 1,
The elevator car sensor includes an upper car sensor installed on the roof of the elevator car and a lower car sensor installed on the bottom surface of the elevator car,
The upper car sensor and the lower car sensor are installed facing each other when viewed in the width direction of the elevator car,
The method further comprises comparing detection values of the upper car sensor and the lower car sensor to determine whether an imbalance of the elevator car is identified;
When the imbalance of the elevator car is identified, the detection values of the sheave sensor, the rope sensor, and the elevator car sensor are collected from the detection values of the elevator car sensor in an elevation section different from the abnormal elevation section in which the symptom is identified, and the Based on the collected detection values, a step of determining abnormal symptoms for each section of the guide rail and the rope is performed,
If the imbalance of the elevator car is not identified, whether there is an error from each detection value of the sheave sensor configured to detect the rotation amount of any one of the upper sheave and the lower sheave and the rope sensor configured to detect the movement amount of the rope The step of identifying is performed,
A method performed on one or more computing devices included in an elevator safety system. According to claim 1,
The elevator safety system further includes a scale device for detecting the load of the elevator car,
The method further includes determining whether a passenger is boarding the elevator car based on a detection value of the weighing device when an imbalance of the elevator car is identified; and
When it is determined that passengers are boarding the elevator car, after all passengers get off the elevator car, detection values of the sheave sensor, the rope sensor, and the elevator car sensor are collected in an elevation section different from the abnormal elevation section, Further comprising determining an abnormal symptom for each section of any one of the guide rail and the rope based on the collected detection value,
When it is determined that no passenger is boarding the elevator car, from each detection value of the sheave sensor configured to detect the amount of rotation of any one of the upper sheave and the lower sheave and the rope sensor configured to detect the amount of movement of the rope The step of identifying if there is an error is performed,
Collecting detection values of elevator car sensors and determining abnormal signs for each section of the guide rail and the rope based on the collected detection values,
A method performed on one or more computing devices included in an elevator safety system. According to claim 2,
The elevator car sensor further comprises another upper car sensor and another lower car sensor installed facing each other when viewed in the longitudinal direction of the elevator car,
A method performed on one or more computing devices included in an elevator safety system. A computer-readable storage medium storing a program for monitoring an abnormal symptom of an elevator, wherein the elevator includes an elevator car, a speed governor, and a rope, the elevator car is capable of moving up and down with respect to a guide rail, and the speed governor is an upper sheave And a lower sheave, wherein the rope is configured to be wound around the upper sheave and the lower sheave,
When the above program runs on one or more computing devices included in the elevator safety system:
identifying an abnormal symptom from a detection value of an elevator car sensor installed in the elevator car and configured to detect a position of the elevator car;
identifying an error from each detected value of a sheave sensor configured to detect a rotation amount of any one of the upper sheave and the lower sheave and a rope sensor configured to detect a movement amount of the rope;
determining an abnormal symptom indicating that there is an abnormality in one of the speed governor and the rope when an error is identified from the detected values of the sheave sensor and the rope sensor; and
When errors are not identified from the detection values of the sheave sensor and the rope sensor, the sheave sensor, rope sensor, and elevator car sensor in an elevation section different from the abnormal elevation section in which an abnormal symptom is identified from the detection values of the elevator car sensor Including one or more instructions for collecting detection values of and performing an operation of determining an anomaly symptom for each section of any one of the guide rail and the rope based on the collected detection value,
A computer readable storage medium.