KR20010018421A - Remote error detection apparatus for elevator and control method thereof - Google Patents

Abstract

PURPOSE: An apparatus for remotely detecting trouble of an elevator and a method for controlling the same are provided to directly confirm the door trouble of the elevator in a monitoring center, thereby improving the reliability of the remote detecting system. CONSTITUTION: A remote trouble detecting apparatus of an elevator includes an elevator controller(110) controlling the movement of the elevator and outputting the present operation information of the elevator and trouble information judging the generation of trouble of the elevator; an image processor(120) outputting the image information of a door by an image transmission command through a monitoring camera installed within an elevator car(160); a monitoring terminal(130) receiving the trouble information and operation information of the elevator controller for detecting and outputting the operation capacity and the records of the present elevator, and receiving the image information through the image processor when the door of the elevator is abnormal for outputting; and a monitoring center(200) receiving the operation information, capacity information, record information, and trouble information of the monitoring terminal for verifying the trouble of the elevator, storing and alarming the trouble, and verifying the door trouble through the image information.

Description

Remote fault detection device of elevator and its control method {REMOTE ERROR DETECTION APPARATUS FOR ELEVATOR AND CONTROL METHOD THEREOF}

The present invention relates to an apparatus for detecting a remote failure of an elevator and a method of controlling the same. In particular, in an elevator remote failure detecting apparatus for detecting a failure state of an elevator, a failure of an operation abnormality of a door having a variety of failure patterns and operation information patterns varies. In the remote control device and the control method of the elevator to the operator to detect and verify the failure of the door by using the image transmission means provided in the monitoring center to improve the efficiency of the overall door failure detection function during detection and verification It is about.

In general, a monitoring terminal equipped with a central processing unit having a communication function for monitoring an elevator's condition is connected to an elevator control unit to monitor the occurrence of a failure, correspond to customer service, and various other operations required for remote management. When a failure occurs in the elevator, the monitoring terminal detects a failure state and transmits the failure state to a monitoring center using a telecommunication network such as a modem.

In addition, the reception host of the monitoring center that has received the failure situation stores it in the main database and solves the failure situation through a necessary procedure such as a troubleshooting agent.

Here, it is related to the door which occupies the largest proportion of all the failures occurring in the field, and when the user intentionally inserts an object into the door, it is determined that the door is broken, but when the door is unstable, Since the opening and closing is not judged to be a failure, it is very difficult to determine the failure of the door state by a certain operation pattern.

1 is a block diagram showing the configuration of a remote failure detection system of an elevator, the elevator control device 10 for controlling the operation of the elevator as shown in the detection and failure; A communication unit 20 for transmitting fault information detected by the elevator control apparatus 10; The monitoring unit 30 receives the fault information of the elevator from the communication unit 20 and stores it, and notifies it when a failure occurs. The monitoring center 30 receives the fault information input from the communication unit 20. A storage unit 31 for storing the; When the failure occurs, it is composed of an alarm generator 32 showing the current state on the screen at the same time as a notification sound alarm, and the operation process according to the prior art configured as described above will be described in detail.

In general, the elevator control apparatus 10 controls the overall operation of the elevator, and detects a failure generated when the elevator is running. When a failure occurs, the failure information is transmitted to the monitoring center 30 through the communication unit 20. Will be sent).

Therefore, the monitoring center 30 which has received the failure information of the elevator through the communication unit 20 stores the failure information of the elevator in the storage unit 31 and generates an alarm in the alarm generator 32. At the same time, by showing the current state of the elevator on the screen, the status of the elevator to the troubleshooting personnel to take the corresponding action.

At this time, as the detection operation for the failure is performed in the elevator control apparatus 10 that performs the control of the elevator, it is very difficult to diagnose the failure in depth, thereby greatly reducing the efficiency of operating the entire system.

Thus, Figure 2 is a block diagram showing the configuration of a remote failure detection system of the elevator to compensate for this, as shown in the elevator control device 40 for controlling the operation of the elevator and outputs the operation information; A monitoring terminal 50 receiving the driving information of the elevator control device 40 and detecting a failure and transmitting failure information thereof; Receives the fault information of the elevator from the monitoring terminal 50 and stores it in the storage unit 61, and also comprises a monitoring center (60) to notify this via the alarm generating unit 62, as described above The operation process according to this will be described in detail.

When the elevator control device 40 controls the operation of the elevator and outputs the driving information according to the monitoring terminal 50, the monitoring terminal 50 receiving the input checks whether there is an abnormality of the elevator through the driving information. If an abnormality is found in the elevator operation, the failure information is transmitted to the monitoring center 60.

In addition, the monitoring center 60 receiving the failure information stores the failure information of the elevator in the storage unit 61 and generates an alarm in the alarm generator 62 and simultaneously displays the current elevator state on the screen. By showing, the status of the elevator to the troubleshooting personnel to take the corresponding action.

As described above, in the conventional technology, the failure of the door is not easily detected according to various driving states of the elevator, and thus, the operation of the remote failure monitoring system is distrusted. As it is performed, the promptness of the fault response and the reliability of the fault monitoring are lowered, thereby increasing the load and operating cost of the system.

Accordingly, the present invention has been made to solve the above-described problems, and the operator is provided with an image transmission means for detecting and verifying failures of door operation abnormalities varying in various aspects and operation information patterns. The purpose of the present invention is to provide a remote failure monitoring apparatus for an elevator and a control method thereof, which provide an accurate and rapid countermeasure through the direct confirmation.

1 is a block diagram showing the configuration of one embodiment of a remote failure detection system of a conventional elevator.

Figure 2 is a block diagram showing the configuration of another embodiment of a remote failure detection system of a conventional elevator.

Figure 3 is a block diagram showing the configuration of an elevator failure detection system to which the present invention is applied.

4 is a block diagram showing the configuration of the monitoring network and the image processing device of FIG.

FIG. 5 is a block diagram illustrating a configuration of an image signal processor in FIG. 3.

6 through 8 are overall operational flow diagrams of FIG.

*** Description of the symbols for the main parts of the drawings ***

100: machine room 110: elevator control device

120: image processing long term 130: surveillance terminal

140: surveillance security camera 150: closed circuit

160: elevator car 200: monitoring center

201: fault diagnosis unit 202: storage unit

203: Image display unit 204: Alarm generating unit

The configuration of the present invention for achieving the above object is an elevator control device for controlling the operation of the elevator and outputs the current operation information of the elevator and failure information for determining whether or not a failure; An image processing apparatus for outputting door-side image information through a security surveillance camera installed in an elevator car by an image transmission command; A monitoring terminal that receives fault information and driving information of the elevator control device and detects and outputs current driving performance and history of the elevator, and receives and outputs the image information through the image processing apparatus when the door of the elevator is abnormal; It is composed of a monitoring center that receives the driving information, performance information, history information and failure information of the monitoring terminal, verifies whether the elevator is broken, stores and alarms it, and verifies it through the video information in case of a door failure. It is characterized by.

The operation of the present invention includes a first step of controlling the operation of the elevator and detecting driving information and failure information thereof; A second step of detecting the failure, the driving performance and the history of the elevator by receiving the driving information and the failure information of the first step, and outputting the driving information, the performance information, the history information, the failure information and the image information; A third step of verifying the details of the failure by receiving the operation, performance, history, and failure information of the second step, and determining whether it is a stop or door error, a general failure or a device error; A fourth step of performing a full diagnosis based on the image information in the case of the stoppage and the door failure as a result of the determination in the third step, and ending after corresponding processing according to the type of the failure; In the case of a general abnormality or a device abnormality, the process is terminated after the corresponding process according to the type of the fault, but if the fault is not found, the fifth step is performed by repeating the operation of the third step after making reference data.

Hereinafter, with reference to the accompanying drawings, the operation and effect of an embodiment of the present invention will be described in detail.

3 is a block diagram showing the configuration of an elevator failure detection system to which the present invention is applied. As shown in FIG. 3, a security monitoring camera for controlling an elevator operation and installed in an elevator car 160 to monitor a door side ( A machine room 100 that detects and outputs image information photographed from the inside, current elevator operation information, fault information, current driving performance, and driving history information through 140; After receiving the image information, operation information, performance information, history information and failure information of the machine room 100 detects the failure of the elevator, and when the elevator car door failure is verified through the image information A monitoring center for storing and informing thereof; And a closed circuit monitor 150 displaying image information of the security surveillance camera 140. The machine room 100 controls the operation of the elevator and determines the failure information and the elevator. An elevator control apparatus 110 for outputting driving information indicating a current driving state of the vehicle; An image processing apparatus 120 outputting image information of the inside of the elevator through a security surveillance camera 140 by an image transmission command; Receives fault information and driving information of the elevator control device 100, detects the current driving performance and history of the elevator and outputs it to the monitoring center 200, when the door abnormality of the elevator of the image processing apparatus 120 It consists of a monitoring terminal 130 for receiving and outputting image information.

And, the monitoring center 200 receives the operation, performance, history and failure information of the elevator from the monitoring terminal 130 to verify the presence or failure of the elevator to output the failure information, if the door failure outputs the image information Fault diagnosis unit 201; A storage unit 202 for storing failure information output from the failure diagnosis unit 201; An image display unit 203 showing image information input through the failure diagnosis unit 201 on a screen; The alarm diagnosis unit 201 and the image display unit 203 receives the input signal and the alarm and the alarm generating unit 204 showing the current state on the screen.

In addition, the monitoring terminal 130 includes a driving information buffer 131 for receiving and storing driving information from the elevator control apparatus 110 as shown in FIG. 4; A statistical calculation unit 132 for receiving driving information through the driving information buffer 131 and calculating driving performance and driving history; A driving performance table 133 which stores the driving performance calculated by the statistical calculation unit 132 in the form of a table; A driving history table 134 for storing the driving history calculated by the statistical calculator 132 in a table form; Receiving the operation information and fault information, detecting the presence or failure of the elevator, outputs a fault code upon finding a fault, outputs an output control signal, and outputs an image transmission command upon detecting the stop and door fault. Detection and control unit 135; The output buffer 136 receives image information, driving information, performance information, history information, and fault information and outputs the same to the monitoring center 200 by the output control signal.

In addition, as shown in FIG. 4, the image processing apparatus 120 receives an image signal of the surveillance security camera 140 and outputs a digital image signal preprocessed and compressed by a control signal. 121); A communication unit 122 outputting the digital image signal of the image signal processing unit 121 to the output buffer by a control signal; The controller 123 controls the operations of the image signal processor 121 and the communication unit 122 by the failure detection and the image transmission command of the controller 135.

Here, the video signal processor 121 includes an analog / digital converter 121-1 for converting an analog video signal of the camera 140 into a digital signal as shown in FIG. 5; A real time preprocessor 121-2 for pre-processing and outputting a digital video signal output from the analog / digital converter 121-1; A memory 121-3 which stores an output image signal of the real time preprocessor 121-2; It consists of a video compressor (121-4) for compressing and outputting the digital video signal stored in the memory (121-3), see the operation flow chart of Figs. 6 to 8 attached to the operation process according to the present invention configured as described above It will be described in detail.

First, the elevator control device 110 in the machine room 100 controls the operation of the elevator, and simultaneously outputs the driving information indicating the current operating state of each component of the elevator to the monitoring terminal 130, and then the elevator angle Detects the abnormal operation state of the component devices.

Here, if there is no abnormality in the elevator, the elevator control apparatus 110 continues to control the elevator, but if an abnormality is found, outputs corresponding failure information to the monitoring terminal 130.

In addition, the monitoring terminal 130 that receives the operation information and the failure information of the elevator control device 110 uses all the operation matters of the elevator, that is, operation state of each switch, contact state, operation related numerical data, and the like. By detecting whether there is an abnormality in the operation of the elevator and calculates the current operating performance and the driving history of the elevator and stores it in the form of a table, and if it is determined that there is an abnormality in the elevator, the operation, performance, Output history and fault information.

That is, the driving information buffer 131 which receives the driving information from the elevator controller 110 stores the driving information, and the statistical operation unit 132 which receives the driving information through the driving information buffer 131 calculates the driving performance. Calculate driving history statistics.

The driving performance table 133 and the driving history table 134 respectively store the driving performance and the driving history calculated by the statistical operation unit 132 in the form of a table.

In addition, the failure detection and control unit 135 performs a real-time failure detection algorithm using the driving information to detect whether a failure occurs in the operation of the elevator and determines whether failure information is applied from the elevator control device 110. do.

Therefore, when the failure detection and control unit 135 determines that a failure occurs in the elevator or failure information is applied, the driving information stored in the driving information buffer 131 and the driving performance table through the output buffer 136 ( Performance information stored in 133, history information stored in the driving history table 134, and failure information detected by the failure detection and control unit 135 are output to the monitoring center 200.

At this time, the failure detection and control unit 135 determines whether or not the elevator is stopped and the door is abnormal, that is, the determination of the failure based on the detailed operation information received from the elevator control device 110 If there is no clear judgment about the state of the door or if more detailed data is needed or if a stop failure occurs and passengers are expected, the current state of the image of the door of the elevator car 160 and the state of passengers inside the elevator are included. The image transmission command requesting the information is output to the image processing apparatus 120.

In addition, the security surveillance camera 140 installed in the elevator 160 by the image signal processor 121 under the control of the controller 123 in the image processing apparatus 120 receiving the image transmission command to photograph the door state. Outputs a digital video signal obtained by pre-processing and compressing the analog video signal, and receives the digital video signal of the video signal processor 121 to the output buffer 136 in the monitoring terminal 130. Output

Here, the video signal processor 121 converts the analog video signal of the security surveillance camera 140 into a digital signal by the analog / digital converter 121-1, and then converts the analog video signal into a digital signal by the real time preprocessor 121-2. After real-time preprocessing and storing in the memory 121-3, the digital image signal stored in the memory 121-3 is compressed and output by the image compressor 121-4 under the control of the controller 123.

In this case, the image processing apparatus 120 compresses the image information of every moment and continuously outputs a large amount of image information as it is output to the monitoring terminal 130 so that the size and resolution of the image to be managed are monitored. In addition to setting the minimum size to suit the purpose, the screen level is set to minimize the amount of image information by using the preprocessed image in a state as simplified as possible for the purpose of monitoring without using the actual image as it is.

However, when the failure detection and control unit 135 determines that the failure information of the elevator control device 110 is not applied or a failure does not occur, the driving information and the failure information are collected to calculate the driving performance and history, and the failure The operation of determining whether or not is repeated.

In addition, the failure diagnosis unit 201 in the monitoring center 200 which receives the operation, performance, history, and failure information of the elevator from the monitoring terminal 130 verifies whether the elevator has a failure.

That is, the failure diagnosis unit 201 grasps the operation state of the elevator based on the received failure details, detailed operation state and state information at that time, and verifies the details of the failure in depth, and determines whether the stop and door failure are general. Determine if there is a malfunction or an error.

When the failure diagnosis unit 201 determines that there is no failure in the elevator, the storage unit 202 for reference data of the operation, performance, history, and failure information input to the storage unit 202. Store in

However, when the failure diagnosis unit 201 determines that the door of the elevator car 160 or a stop failure has occurred, the image diagnosis unit 201 outputs the image information output from the image processing apparatus 120 to the image display unit 203, and thus an expert The controller determines whether there is a problem with the door based on the image in the elevator 160 shown through the image display unit 203.

In addition, the driving, performance, history and failure information are stored in the storage unit 202, and the alarm and the current state of the elevator are displayed on the screen according to the type of the failure through the alarm generation unit 204. It is possible to take appropriate measures according to the degree of failure of the elevator up to the dispatch of the repairman, and to prepare appropriate measures necessary for repair by analyzing the details of the failure.

In addition, when it is determined that the state analysis is difficult only by the image input through the image display unit 203, the monitoring terminal 130 is connected to monitor the continuous operation state.

Accordingly, the monitoring terminal 130 continuously transmits the instantaneous instantaneous image information from the image processing apparatus to the monitoring center 200 together with all the driving information generated during the current operation, and all the driving information generated during the current operation. The monitoring center 200 which receives the image information together continuously monitors the image information through the image display unit 203.

As described in detail above, the present invention includes a video transmission means for transmitting the door-side image information for detecting and verifying a failure for door operation abnormalities having a wide variety of failure patterns and operation information patterns. By verifying directly through the system, accurate and rapid countermeasures can be provided to enhance the reliability of the remote fault detection system and to reduce the system load and operation cost. By continuously outputting the in-car image information through the transmission means, it is easy to obtain statistics such as the number of passengers using the elevator, and has an effect that is suitable for grasping the traffic volume when applied to the military management control device.

Claims (7)

An elevator control device which controls the operation of the elevator and outputs the current operation information of the elevator and failure information for determining whether a failure occurs; An image processing apparatus for outputting door-side image information through a security surveillance camera installed in an elevator car by an image transmission command; A monitoring terminal that receives fault information and driving information of the elevator control device and detects and outputs current driving performance and history of the elevator, and receives and outputs the image information through the image processing apparatus when the door of the elevator is abnormal; It is composed of a monitoring center that receives the driving information, performance information, history information and failure information of the monitoring terminal, verifies whether the elevator is broken, stores and alarms it, and verifies it through the video information in case of a door failure. Remote failure detection device of the elevator, characterized in that. The apparatus of claim 1, wherein the monitoring terminal comprises: a driving information buffer configured to receive and store driving information from an elevator controller; A statistical calculator which receives driving information stored in the driving information buffer and calculates driving performance and driving history; A driving performance table and a driving history table for storing the driving performance and the driving history calculated by the statistical calculator in the form of tables; An output buffer which receives image information, driving information, performance information, history information, and fault information and outputs the same to the monitoring center by an output control signal; Detects the presence or absence of a failure through the operation information and the failure information of the elevator control device, outputs a failure code when a failure is found, outputs an image transmission command to an image processing device when a door failure occurs, and controls the output of the output buffer. Remote failure detection device for an elevator, characterized in that consisting of a detection and control unit. The image processing apparatus of claim 1, further comprising: a controller configured to control preprocessing, compression, and output of an image signal of the surveillance security camera by an image transmission command of the surveillance terminal; A video signal processing unit which receives an analog video signal of the surveillance security camera under the control of the controller and outputs a preprocessed and compressed digital video signal; And a communication unit configured to output a digital video signal of the video signal processing unit to the monitoring terminal under the control of the control unit. The apparatus of claim 3, wherein the video signal processor comprises: an analog / digital converter for converting an analog video signal of a surveillance security camera into a digital signal; A real-time preprocessor for pre-processing and outputting a digital video signal output from the analog / digital converter; A memory for storing an output image signal of the real time preprocessor; And a video compressor for compressing and outputting a digital video signal stored in the memory. According to claim 1, The monitoring center receives the operation, performance, history and failure information of the elevator from the monitoring terminal to verify the failure of the elevator outputs the failure information, if the door failure failure diagnosis to output the image information Wealth; A storage unit for storing failure information outputted from the failure diagnosis unit; An image display unit which verifies whether the door is broken by showing image information input through the failure diagnosis unit on a screen; And an alarm generating unit for alarming upon receiving the output signals of the fault diagnosis unit and the image display unit and displaying the current state on the screen. Controlling a driving of the elevator and detecting driving information and failure information thereof; A second step of detecting the failure, the driving performance and the history of the elevator by receiving the driving information and the failure information of the first step, and outputting the driving information, the performance information, the history information, the failure information and the image information; A third step of verifying the details of the failure by receiving the operation, performance, history, and failure information of the second step, and determining whether it is a stop or door error, a general failure or a device error; A fourth step of performing a full diagnosis based on the image information in the case of the stoppage and the door failure as a result of the determination in the third step, and ending after corresponding processing according to the type of the failure; In the case of a general abnormality or a device abnormality, the process is terminated after the corresponding process according to the type of the fault, but if the fault is not found, the remote control of the elevator comprising a fifth step of repeating the operation of the third step after making reference data. Control method of fault detection device. The method of claim 6, wherein the operation of outputting the driving information, the performance information, the history information, the failure information, and the image information comprises: a first step of receiving the driving information and calculating and storing the driving performance and driving history statistics; A second step of detecting whether a failure has occurred by detecting a failure of an elevator through the operation information when the operation of the first step is completed; A third step of transmitting, if the failure occurs as a result of the determination in the second step, the failure details, the driving information, the driving performance, the driving history, and determining whether it is a stop or a door abnormality; If a failure has not occurred as a result of the determination of the second step, if there is no error in the device according to the reception of failure information, the operation of the first step is repeated, but if there is an error in the device, the operation of the third step is performed. Performing a fourth step; And a fifth step of transmitting and terminating the image information when the stoppage and the door abnormality are determined as the third step.