JPH08192965A - Elevator abnormality determination device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an elevator abnormality determination device capable of highly accurately determining an abnormality in the operation of an elevator regardless of the installation environment of the elevator. [Configuration] A reference elevator 100 that measures the operating state of the elevator while measuring the environment of each part of the elevator
And an elevator 1 having a device for monitoring the operating condition of the elevator while measuring the environment of one part of the elevator, and judging the abnormal operation of the elevator based on the reference state data.
01, data collection from the elevator, creation of reference state data by environment, and writing of reference state data corresponding to the operating environment to the abnormality determination device 1
It consists of 0. [Effect] Since the reference state data for determining the abnormality of the elevator is created for each installation environment of the elevator, the abnormality determination with high accuracy can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator abnormality determining apparatus for constantly or occasionally detecting an operating state of an elevator and determining an elevator abnormality from operating state data.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram of an elevator abnormality determining apparatus disclosed in, for example, Japanese Patent Laid-Open No. 5-113210. In the figure, 1 is a car, and this car 1 is fixed to one end of a rope R, a counterweight 2 is fixed to the other end of the rope R, and the rope R is wound and driven by a motor 3. It is wound around the drive pulley 4 to be driven. Further, one end of the signal line L1 is connected to the car 1, and the other end of the signal line L1 is connected to the elevator control device 7. On the car 1, there are a car push button and a door drive device 6, and these devices are connected to the elevator control device 7 via a signal line L1. In addition, the elevator control device 7 is connected to hall devices such as hall push buttons, lamps, and hall door switches, and in-tower devices such as limit switches installed in the hoistway to prevent the car 1 from overshooting. Has been done.

FIG. 6 shows an elevator control device 7 and an elevator abnormality determination device 8 connected to the elevator control device.
It is a block diagram of. The elevator abnormality determination device 8 includes the occurrence status of hall calls and car calls in the elevator control device 7, car position information, car car door switch information,
The operation status of the elevator can be constantly detected in real time by constantly reading the operation information such as the information of the hold switch and the information of the limit switch in a constant cycle. Depending on the obtained operation status and the model of the elevator concerned. Elevator abnormality determination is performed based on a comparison result with reference state data set in advance in the elevator abnormality determination device 8.

[0004]

In the above-described conventional elevator abnormality determination device, the reference state data for abnormality determination is created for each elevator model, and the difference in the operating state of each model (starting time, door operating time, etc.). ) Is set in consideration. However, it is known that the operating state of the elevator changes even when the model is exactly the same due to the seasonal temperature and humidity fluctuations and the difference in the environment of the building where the elevator is installed (whether or not there is air conditioning), This change in the operating state causes an erroneous determination when making an abnormality determination. As an example of data in which the operating state changes, there is a door operating time and the like, and the cause is considered to be a situation in which the state of the oil film of the mechanical portion of the door varies depending on temperature and humidity. An object of the present invention is to provide an elevator abnormality determination device that prevents erroneous determination of an abnormality due to a change in environmental conditions.

[0005]

In order to achieve the above object, the present invention detects the operating condition of an elevator constantly or at any time and compares the detected operating condition data with stored reference condition data. In the elevator abnormality determination device for determining the presence or absence of elevator abnormality by
At least one of the multiple elevators is used as a reference elevator, and the reference elevator is provided with measuring means for detecting environmental conditions such as temperature and humidity in the vicinity of each movable part in the equipment that constitutes the elevator. Elevators other than the reference elevator are provided with measuring means for detecting the environmental condition in the vicinity of only typical equipment, and based on the reference data for each movable part detected by each detector of the reference elevator. Environment-specific reference status data creating means for creating reference status data for each movable part for each environmental status, and for each environment created based on the reference elevator showing the same environmental status as the detected representative equipment of other elevators Abnormality judgment standard setting that sets state data as abnormality judgment standard of each movable part of other elevators Characterized in that it comprises a stage.

[0006]

With the above configuration, when setting the reference state data for abnormality determination of the elevator, the measurement data of the environment in which the elevator is installed is used to determine the operation of the elevator according to the operating environment obtained from the reference elevator. By correcting the standard state data of the model of the elevator based on the change, by setting in the abnormality determination device of the elevator,
A more accurate abnormality determination can be performed. Also,
By collecting the above environmental measurement data and setting the reference state data at appropriate time intervals, it is possible to obtain a good abnormality determination result even with environmental changes in the building due to seasonal environmental changes and air conditioning. It will be possible.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram of a reference elevator provided for measuring elevator operating condition data and environmental data for collection into reference condition data,
FIG. 2 is an explanatory diagram showing the relationship between the reference elevator and an elevator having a center device and an abnormality determination device, FIG. 3 is an explanatory diagram illustrating a method of determining correction data according to environment, and FIG. 4 is setting of reference state data. Flowchart showing the procedure, FIG.
FIG. 3 is a block diagram of an elevator control device and an elevator abnormality determination device connected to the elevator control device.

An embodiment of the elevator having the above structure will be described below. In FIG. 1, an elevator control device 7 includes a storage device 7 including a CPU 71 and a ROM.
2, a storage device 73 including a RAM, an electric motor, a device on a car, a hall device, and a conversion device 74 having an interface function with the equipment in the tower, and a storage device 72 on the bus of the CPU 71. 73 and a conversion device 74 are connected. An elevator abnormality determination device 8 is connected to the bus of the elevator control device 7. The elevator abnormality determination device 8 is the CPU 8
1, a storage device 82 composed of a ROM, a storage device 83 composed of a RAM, a conversion device 84 having an interface function with a communication device 9 for communicating with a center device (not shown) via a public line or the like. , Shared storage device 8
It is composed of 5. Here, the shared storage device 85 is configured by a dual port RAM or the like that can be accessed by both the CPU 71 of the elevator control device 7 and the CPU 81 of the elevator abnormality determination device 8. And CPU8
The shared storage device 85 and the storage devices 82 and 83 are connected to the shared storage device 1, and the shared storage device 85 is connected to the bus of the elevator control device 7. The shared storage device 85 is configured such that, in the elevator control device, when the CPU 71 writes data to the storage device 73, the same data is written to the shared storage device 85. Operation information such as the status of hall calls and car calls in the elevator control device 7, car position information, car door switch information, hold door switch information, limit switch information, etc.
Since the CPU 71 is adapted to be stored as data in the storage device 73 of the elevator control device 7 via the conversion device 74, these data are also written as data in the shared storage device 85 of the elevator abnormality determination device 8. Be done. Therefore, in the elevator abnormality determination device 8, if the data in the shared storage device 85 is always read at a constant cycle and stored in the storage device 83, the operating state of the elevator can be constantly detected in real time, and the obtained operation can be performed. The state is compared with reference state data set in advance in the storage device 83 of the abnormality determination device according to the model of the elevator, and the elevator abnormality determination is performed based on the comparison result.

Here, as shown in FIG. 2, among a large number of elevators, one or more reference elevators having different installation environments are installed. Examples of installation locations include office buildings, residential buildings, factories, etc., and the installation environment includes differences in weather conditions depending on the installation area and whether or not there is air conditioning in the building. In the standard elevator, sensors that measure temperature and humidity are installed in the parts of the equipment (most parts) where the operating conditions are predicted to change due to the environment of the elevator, and the operating conditions are detected and the environment is measured. . In FIG. 1, as an installation example, it is installed in the elevator control device 6 (T1), the hoisting motor (T2), the elevator shaft upper part (T3), the door drive device (T4), the elevator shaft lower part (T5), and the like. . In other elevators equipped with an abnormality determination device, a sensor is installed in a portion that most representatively represents the operating environment of the elevator, and while measuring the environment, the operating state of the elevator is measured and abnormality determination is performed. Here, the sensor T4 is installed near the door driving device 3 of the elevator. In FIG. 3, the sensor device 10 periodically communicates with the reference elevator and other elevators, collects the operation status data of the elevator and the environmental measurement data, and processes the reference state data for making an abnormality determination. Are doing.

A procedure for creating reference state data for making an elevator abnormality determination in the apparatus having the above configuration will be described with reference to the flowchart of FIG.

In the reference elevator, the operating condition (the required operation time, etc.) of each movable part of the elevator is measured, and the environmental measurement data from each sensor is collected. As the operation status data, the time from when a start command or a stop command is issued to the hoisting motor 3 or the door drive device 6 until the device actually operates and the contacts of each part of the device operate, and Examples include operating speed. Here, it is desirable that the standard elevator is always maintained.
(Procedure S1) In the state where the reference elevator has completed data collection,
The monitoring center communicates with the reference elevator, and transmits equipment operation status data in the reference elevator and environmental measurement data to the monitoring center. After collecting the above data from each standard elevator installed in various environments, the operating status of each device is classified by environmental data, and standard condition data is created for each environment. As an environment classification method, when the environment measurement items are temperature and humidity, a classification method as shown in FIG. 3 can be taken as an example. Here, the temperature is classified into four ranges and the humidity is classified into two ranges, the reference elevators of the environment applicable to each classification are selected, and the reference state data K1 to K8 are created from the operation status of each reference elevator. (Procedure S2) On the other hand, in other elevators in which the elevator abnormality determination device is installed, a sensor is installed in a place that represents the operating environment of the elevator, and the environment is measured. Examples of the sensor installation location include the upper part of the shaft. The center device regularly collects elevator operation state data and environment measurement data from other elevators having an elevator abnormality determination device. (Procedure S
3) After collecting the data, the reference state data K1 to K8 for each movable part based on the environmental measurement data of the reference elevator.
Select one from among the above, and create environment-specific reference state data for each movable part. (Procedure S4) After creating the environmental standard condition data, the monitoring center 10 transmits environmental standard condition data (for each movable part) to which the environmental conditions measured by the sensors of the other elevators apply to the elevator, and the abnormality determination standard. As storage device 8
Write to 3. In short, the reference state data created based on the reference elevator is transmitted as a reference for other elevators under the same environmental conditions as the reference elevator. This is done for each environmental condition. (Procedure S5) The elevator operation environment is reflected in the elevator abnormality determination device by regularly performing the above procedure,
Optimal reference state data can be set, and highly accurate abnormality detection can be performed.

Further, in the above embodiment, the reference condition data based on the environmental data is created on the side of the center device, but as another method, all the reference condition data classified by environment is sent to the elevator abnormality judging device. Every time, there is a method to select the reference state data according to the environment measured by the elevator abnormality determination device. Although this method increases the required storage capacity, it is possible to make an appropriate abnormality determination even when the environment changes suddenly. .

[0014]

As described in detail above, according to the present invention,
Even if the installation environment fluctuates in the elevator where the elevator abnormality determination device is installed, and the operating condition of the elevator fluctuates, the environmental measurement data up to the collection point after the center device collects the operating condition data and the environmental measurement data In order to set the standard condition data created to be most suitable for the operating environment in the elevator anomaly judgment device, the changes in the elevator operation due to the changes in the installation environment of the elevator and the environmental changes due to the seasons are taken into consideration in the elevator anomaly judgment. The abnormality determination can be performed, and the accuracy of the abnormality determination can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a reference elevator including a sensor for measuring an environment according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating a relationship between an elevator including a reference elevator, a center device, and an abnormality determination device.

FIG. 3 is an explanatory diagram illustrating an example of classification of reference state data based on environmental measurement data.

FIG. 4 is a flowchart showing a procedure for setting reference state data for abnormality determination according to the present invention.

FIG. 5 is a block diagram of an elevator abnormality determination device including a conventional abnormality determination device.

FIG. 6 is a block diagram of an elevator control device and an abnormality determination device including a conventional abnormality determination device.

[Explanation of symbols]

 7 Elevator control device 8 Elevator abnormality determination device 9 Communication device 10 Center device 71, 81 CPU 72, 82 ROM 73, 83 RAM 74, 84 Conversion device 85 Shared memory 100 Reference elevator 101 Elevator with elevator abnormality determination device

Claims (1)

[Claims] 1. An elevator abnormality determination device for determining whether or not there is an abnormality in an elevator by constantly or at any time detecting the operating state of the elevator and comparing the detected operating state data with stored reference state data,
At least one of the multiple elevators is used as a reference elevator, and the reference elevator is provided with measuring means for detecting environmental conditions such as temperature and humidity in the vicinity of each movable part in the equipment that constitutes the elevator. Elevators other than the reference elevator are provided with measuring means for detecting the environmental condition in the vicinity of only typical equipment, and based on the reference data for each movable part detected by each detector of the reference elevator. Environment-specific reference status data creating means for creating reference status data for each movable part for each environmental status, and for each environment created based on the reference elevator showing the same environmental status as the detected representative equipment of other elevators Abnormality judgment standard setting that sets state data as abnormality judgment standard of each movable part of other elevators Abnormality determination device for an elevator, characterized in that it comprises a stage.