JPH05139642A - Remote monitoring device for elevator - Google Patents

Abstract

PURPOSE:To improve safety much more by grasping the state of an elevator more completely to surely restore the state of the elevator to the original condition. CONSTITUTION:When an elevator malfunctions, or is stopped by earthquake, monitoring cameras 5, 6, 8, 10 photograph the machine room and the internal and external state of a cage while they perform checking operations, and transmit an obtained image signal to a monitoring center 4, together with elevator operation data. The monitoring center 4 side grasps the state of the elevator based on the transmitted image signal and the operation data, and restores the elevator operation to the original condition by a remote restoration signal from the monitoring center 4 when no abnormalities are detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remote monitoring device for connecting an elevator control panel and a monitoring center via a communication line to remotely monitor the state of the elevator at the monitoring center.

[0002]

2. Description of the Related Art When an elevator performing remote monitoring malfunctions or an elevator stops operating due to an earthquake, conventionally, a monitoring center detects it based on an alarm, and a maintenance staff from the monitoring center side locally detects it. The method is to go to and inspect the hoistway and the control panel, take the necessary measures, and then restore the system. However, in this method, it takes time for the maintenance personnel to arrive at the site, and during that time, the elevator remains stopped, which not only causes a problem of deterioration of service for passengers but also imposes a heavy burden on maintenance work.

In order to solve such a problem, as shown in FIG. 3, a method of recovering from the monitoring center side has been considered. The method of FIG. 3 is outlined as follows.

If a malfunction occurs in the elevator,
An alarm signal indicating that is sent from the elevator control panel 1 to the elevator monitoring terminal 2 and the communication line 3 (for example, a telephone line).
Is sent to the monitoring center 4 via. Upon receiving the warning signal, the monitoring center 4 sends a remote inspection signal to the elevator control panel 1 via the route opposite to the above to cause the elevator to perform inspection operation of the elevator. The operation data obtained by this inspection operation is transmitted again to the monitoring center 4. Monitoring center 4
Then, it is judged from the transmitted operation data whether or not the elevator can be operated normally, and if there is no abnormality, recovery operation is performed.

[0005]

However, in this method, since the state of the elevator is judged only by the operation data obtained by the inspection operation, there remains a safety problem.
That is, there are factors that do not appear in the operation data, such as causes of malfunctions.

Therefore, it is an object of the present invention to provide an elevator remote monitoring device capable of more fully ascertaining the state of the elevator, making a more thorough recovery, and improving the safety.

[0007]

SUMMARY OF THE INVENTION A remote monitoring apparatus according to the present invention comprises a check operation command means for issuing a check operation command from a monitoring center to an elevator, and a check operation of an elevator according to a check operation command from the check operation command means. Means, at least one surveillance camera for photographing the state of the elevator when the elevator is inspected and operated, and an image signal obtained by this surveillance camera together with the elevator operation data at the time of the inspection and operation via the communication line. And a receiving means for receiving the image signal and the elevator operation data transmitted via the communication line.

[0008]

According to the present invention, when the elevator malfunctions or is stopped due to an earthquake, the condition of the machine room, the inside of the car, or the like is photographed by the monitoring camera while performing the inspection operation, and the image signal obtained thereby is taken. Send to the monitoring center along with the operation data. On the monitoring center side, the state of the elevator can be grasped based on the transmitted image signal and operation data, and if there is no abnormality, the elevator operation can be restored by the remote restoration signal from the monitoring center.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.

FIG. 1 shows an embodiment of a remote monitoring device according to the present invention. An elevator control panel 1 for performing mutual communication between an elevator control panel 1 for controlling an elevator (not shown) and a monitoring center 4 provided at a remote place.
Is provided with an elevator monitoring terminal 2, and the elevator monitoring terminal 2 and the monitoring center 4 are connected via a communication line 3, for example, a public telephone line. It is assumed that the elevator control panel 1 is composed of a microcomputer. The elevator monitoring terminal 2 receives the abnormal signal of the elevator, issues an alarm, or monitors the center 4.
It is a terminal for receiving and relaying the command signal from.
The monitoring center 4 functions as a central monitoring device that receives signals from the elevator monitoring terminals 2 attached to a plurality of elevators, and displays, records, or issues a command to the terminals 2.

The elevator control panel 1 is provided with a television camera 5 in the car for taking a picture of the inside of the elevator car, a television camera 6 for a car for taking a picture of the state of the hoistway from the car, and a television camera 6 for the car under the car. The respective picked-up image signals are input from the under-cabin television camera 8 which photographs the state of the hoistway from under the car and the machine room television camera 10 which photographs the state of the machine room. Since the portions to be photographed by the car television camera 6 and the car television camera 8 are dark, they are illuminated by the car illumination device 7 and the car illumination device 9 to the extent that they can be photographed.

FIG. 2 shows the structure of the elevator equipment and the installation location of each television camera and the like. A machine room 21 is set above the hoistway 20, a hoisting machine 22 is installed therein, and an elevator control panel 1 and an elevator monitoring terminal 2 are also provided. The machine room TV camera 10 is attached to the ceiling of the machine room 21.

Main sheave 2 driven by hoist 22
3, a main rope 24 is hung, and an elevator car 25 is attached to one end of the main rope 24. Main rope 24
The other end is guided by a deflecting sheave 26, and a counterweight 27 is attached. In the elevator car 25,
The television camera 5 in the car is attached to the ceiling portion inside thereof, the television camera 6 on the cage and the illumination device 7 on the cage are attached to the ceiling on the outside, and the television camera 8 under the cage and the illumination device 9 under the cage are attached under the floor, respectively. ing.

Next, the operation of the apparatus shown in FIG. 1 will be described.

When the elevator generates a malfunction signal or stops its operation due to an earthquake, the elevator monitoring terminal 2 detects the abnormal condition and transmits an abnormal signal notifying the malfunction content. This abnormal signal is transmitted to the monitoring center 4 via the communication line 3.

Upon receiving the abnormal signal transmitted from the elevator monitoring terminal 2, the monitoring center 4 transmits an inspection operation command signal, a camera operation command signal, and an illumination lighting command signal. These signals are transmitted to the elevator control panel 1 via the communication line 3 and the elevator monitoring terminal 2. The elevator control panel 1 that received the command is each TV camera 5, 6,
8 and 10 and the respective lighting devices 7 and 9 are operated. Then, while repeating the operation in which the elevator is moved for a certain distance and stopped by the inspection operation control signal from the monitoring center 4, the state at each time is changed to each television camera 5, 6, 6.
Shoot while changing the shooting direction by 8 and 10.

While repeating the above operation, the operation is performed from the top floor to the bottom floor (or vice versa) to obtain an image signal. At this time, the elevator operation data is also recorded at the same time. The image signal and the elevator operation data thus obtained are transmitted to the monitoring center 4 via the elevator monitoring terminal 2 and the communication line 3.

The monitoring center 4 judges from the transmitted image signal and elevator operation data whether or not there is an abnormality in the elevator. If there is no abnormality, the monitoring center 4 issues a restoration signal to restore the elevator operation.

As described above, unlike the conventional method of determining the state of the elevator only by the elevator operation data, the state of the elevator is grasped by the two kinds of information of the image signal and the operation data. And the safety of the elevator can be improved.

[0020]

As described above, according to the present invention, since the elevator operation data is added with the image signal photographed by the surveillance camera as the surveillance item, the safer remote restoration process can be realized.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a remote monitoring device according to the present invention.

FIG. 2 is an equipment layout diagram showing a schematic equipment configuration of elevator equipment.

FIG. 3 is a block diagram showing a schematic configuration of a general elevator remote monitoring device.

[Explanation of symbols]

 1 Elevator control panel 2 Elevator monitoring device terminal 3 Communication line 4 Monitoring center 5 TV camera in car 6 TV camera on car 7 Car lighting system 8 TV camera under car 9 Car lighting system under car 10 Machine room TV camera 20 Hoistway 21 Machine Room 22 Hoisting machine 23 Main sheave 24 Main rope 25 Elevator basket 26 Baffle sheave 27 Balancing weight

Claims (1)

[Claims] 1. A remote monitoring device for an elevator, wherein an elevator control panel and a monitoring center are connected via a communication line to remotely monitor the status of the elevator at the monitoring center. Inspection operation command means for issuing an inspection operation command, means for inspecting and operating the elevator according to the inspection operation command from this inspection operation command means, and at least one surveillance camera for photographing the state of the elevator when the elevator is inspected and operated Transmitting means for transmitting the image signal obtained by the surveillance camera to the monitoring center through the communication line together with the elevator operation data during the inspection operation; and the image signal and the elevator transmitted through the communication line. A remote monitoring device for an elevator, comprising: a receiving means for receiving operation data.