JPH06156906A - Remote monitoring device for elevator - Google Patents

Abstract

PURPOSE:To give a remote monitoring function of high performance to an elevator control device in spite of a microcomputer not being loaded by monitoring the state of an elevator with a remote monitoring terminal device, and if necessary, communicating the abnormal state to a remote maintenance device through a public telecommunication line. CONSTITUTION:A remote monitoring terminal device 3 is connected to each elevator control device 2 provided on every elevator system 1 scattered in a decided area, and the respective remote monitoring terminal devices are connected to a remote maintenance device 5 provided in a maintenance center 4 at a remote place through public telecommunication lines 6. For example, when a signal to indicate door opening during operation is input from the elevator control device 2 to the terminal device 3, by indication of a CPU 3c, the telephone number of the remote maintenance device 5 previously registered is automatically dialed with a network control part 3g, the public communication line 6 is connected, and the trouble information recorded in the moving state recording part 3d is automatically transmitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects a plurality of distributed elevator systems and a remote maintenance device installed at a remote maintenance center via a public line to obtain operation history of each elevator system. The present invention relates to an elevator remote monitoring device that remotely monitors a failure state.

[0002]

2. Description of the Related Art A plurality of distributed elevator systems and a remote maintenance device installed at a remote maintenance center are connected via a public line to remotely monitor the operation history and failure status of each elevator system. In a conventional elevator remote monitoring device, a microcomputer is installed in the elevator control device itself that controls the operation of the elevator, and the microcomputer calculates and records the information via a public line by a terminal device attached to the elevator control device. It is transmitted to an elevator remote maintenance device at a remote place.

Further, in an elevator remote monitoring device for an elevator control device not equipped with a microcomputer, only simple abnormalities such as operation of a safety device and power failure of a control power source are transmitted to an elevator remote maintenance device at a remote place through a terminal device. I am trying to do it.

[0004]

However, in such a conventional elevator remote monitoring device, an elevator control device equipped with a microcomputer and an elevator control device not equipped with a microcomputer have large remote monitoring and maintenance functions. There was a problem that a difference occurred.

Further, in order to provide an elevator system having an elevator control device not equipped with a microcomputer with a function equivalent to that of an elevator control device equipped with a microcomputer, the control device is replaced or replaced. A major remodeling of the same level as above was required, and it was impossible to improve such a function from the viewpoint of cost.

The present invention has been made in view of the above problems of the prior art, and various information collecting and recording operations performed by a microcomputer mounted in a conventional elevator control device are performed by a terminal device for data transmission / reception. Even if the elevator system is not equipped with a microcomputer,
It is an object of the present invention to provide an elevator remote monitoring device capable of improving a remote monitoring maintenance function to a level comparable to an elevator system equipped with a microcomputer at a relatively low cost.

[0007]

SUMMARY OF THE INVENTION The present invention provides an elevator control device for controlling the operation of an elevator, an elevator remote maintenance device for monitoring the state of the elevator at a remote location, and an elevator control device and an elevator remote maintenance device. In a public line, and in an elevator remote monitoring device comprising a remote monitoring terminal device provided on the elevator control device side for transmitting various information from the elevator control device to the elevator remote maintenance device, a remote monitoring terminal device is provided. , A signal receiving unit that receives various signals of the elevator control device, an operation history recording unit that creates and holds an operation history of the elevator based on various signals received by the signal receiving unit, based on various signals received by the signal receiving unit Information of the operation status recording section that determines and records the failure status of the elevator and the operation history recording section A network control unit is provided that regularly transmits to the elevator remote maintenance device via the public line and automatically transmits the information recorded in the operation status recording unit to the elevator remote maintenance device via the public line when an abnormal failure occurs. It is a thing.

[0008]

In the elevator remote monitoring device of the present invention, the signal receiving unit of the remote monitoring terminal device receives various signals from the elevator control device, and the operation history recording unit creates the operation history of the elevator based on the various signals of the elevator. Recorded
The operation state recording unit determines and records the failure state of the elevator based on various signals of the elevator. Then, the network control unit periodically transmits the information of the operation history recording unit to the remote maintenance device through the public line, and immediately transmits the information of the operation state recording unit to the remote maintenance device when an abnormality occurs.

In this way, even if the elevator controller does not have a complicated arithmetic processing capability, the condition of the elevator is monitored by the remote monitoring terminal device, and if necessary, the remote maintenance device is automatically in an abnormal state through the public line. The remote monitoring performance is dramatically improved by introducing a relatively inexpensive terminal device.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a system configuration of a general elevator remote monitoring device, and for each elevator control device 2 provided for controlling the operation of each elevator system 1 scattered in a certain area. The remote monitoring terminal devices 3 are connected, and each remote monitoring terminal device 3 and a remote maintenance device 5 installed in a maintenance center 4 at a remote place are connected by a public line 6.

A detailed structure of the elevator control device 2 and the remote monitoring terminal device 3 is shown in FIG. The elevator control device 2 includes various contact groups 2a that output operation states required for elevator operation control and operation monitoring, such as door open contacts, door close contacts, elevator landing detection contacts, load detection contacts, and elevator positions. It is equipped with detection contacts. The remote monitoring terminal device 3 includes an operating state detection unit 3a that receives a signal from the contact group 2a of the elevator control device 2,
An operation state processing unit 3b that processes the contact signal taken in by the operation state detection unit 3a, a CPU 3c that calculates the processing signal by the operation state processing unit 3b, and an operation that records the operation state of the elevator as the calculation result by the CPU 3c. A state recording unit 3d, an operation history recording unit 3e for recording the operation history of the elevator, a modulation / demodulation circuit 3f for modulating / demodulating signals to / from the public line 6, and a network control unit 3g for controlling transmission / reception of signals on the public line 6 are provided. .

Next, the operation of the elevator remote monitoring device having the above configuration will be described.

As shown in FIGS. 1 and 2, when the elevator system 1 is operated, the elevator control device 2 controls elevator operation such as elevator up / down operation, door opening / closing operation, and landing position control. To do. The contact group 2a of the elevator control device 2 outputs a door open contact signal and a door close contact signal when the door is opened and closed, and outputs a landing level contact signal when the elevator stops at a predetermined position. Various contact signals are output to the operating state detection unit 3a of the remote monitoring terminal device 3 according to the operating state of the elevator, such as outputting a stop contact signal due to stoppage.

The operating condition detector 3a receives contact signals from various contacts 2a, detects which contact is on or off, and sends the detected signal to the operating condition processor 3b. .

The operating condition processing unit 3b receives signals from the operating condition detecting unit 3a and supplies the CPU 3c with elevator operating condition information such as door opening, closing, car stop, moving, ascending operation, and descending operation. .

The CPU 3c receives this and performs arithmetic processing,
Status information is sent to the operation status recording unit 3d, history information is sent to the operation history recording unit 3e, and a transmission command signal,
Demodulation circuit 3 for receiving control command signals such as reception processing command signals
f, output to the network control unit 3g.

The modulation / demodulation circuit 3f is a part for modulating the transmission signal and demodulating the reception signal under the command of the CPU 3c. The modulation / demodulation circuit 3f is used for transmitting elevator information and failure information to the public line 6 through the network control part 3g. The operation is performed, and a signal from the remote maintenance device 5 side received from the public line 6 through the network control unit 3g is fetched and demodulation operation is performed. The network control unit 3g automatically dials the telephone number of the remote maintenance device 5 registered in advance, transmits modulated signals of various kinds of elevator information from the modulation / demodulation circuit 3f to the remote maintenance device 5 through the public line 6, and also to the public. The network control for receiving the signal sent from the remote maintenance device 5 through the line 6 and giving it to the modulation / demodulation circuit 3f is performed.

Next, the operation history recording operation, the operation state recording, and the reporting operation will be described based on the flowchart.

As shown in FIG. 3, for example, when performing an ascending operation, an ascending operation signal is given from the elevator control device 2 to the remote monitoring terminal device 3 (step S1), and the terminal device 3 receiving this signal, The “number of times of rising operation” of the elevator operation history recording unit 3e is incremented by +1 (step S2). At the same time, the duration of the ascending operation signal is integrated until the ascending operation is stopped, and the ascending operation time of the elevator is also integrated (steps S3, S4, S7, S).
8).

This operation history recording operation is similarly processed for the descending operation, and the number of times the lighting lamp in the car is turned on, the number of times the door is opened and closed, etc. are integrated and automatically recorded.

The operation record recorded in the elevator operation history recording section 3e in this way is responsive to a regular inquiry from the remote maintenance device 5 side such as every half day or every day, or an inquiry at an arbitrary timing. On the other hand, it is transmitted from the network control unit 3g to the remote maintenance device 5 through the public line 6, and the center 4 side automatically collects the operation history information of each elevator.

When an abnormality such as the opening of the door occurs during operation, as shown in the flow chart of FIG.
When a signal indicating that the door is open is input from the elevator control device 2 to the terminal device 3 during operation (step S4), it is determined to be an abnormal state (step S5), and immediately together with the date and time of occurrence and position information of the car. It records in the elevator operation state recording unit 3d (step S6), and at the same time, the network control unit 3g automatically dials the telephone number of the remote maintenance device 5 registered in advance according to the instruction of the CPU 3c, and the public line 6 is connected. And this operation status recording unit 3
The failure information recorded in d is automatically transmitted.

Further, for example, when a confinement fault occurs, the remote maintenance device is automatically notified of the confinement fault occurrence by the procedure shown in the flowchart of FIG. 4 and a rescue is requested. That is, when the stop state of the elevator is detected by the signal from the contact group 2a of the elevator control device 2 (step S11), it is determined whether or not the level of the elevator car matches the level of the predetermined stop floor. Detected from the signal of the detection contact (step S12), if the levels do not match, it is determined that the elevator is stopped in the middle of the floor, and it is further determined whether there is a person in the car by the signal of the load detection contact. Judging from (Step S1
3) If the load is detected, it is determined that the elevator car has stopped midway between the floors, and a trapping fault in which a person is trapped in the car has occurred (step S1).
4), the CPU 3c records the occurrence of the confinement failure and the date and time information in the operation state recording unit 3d, and at the same time, the network control unit 3g automatically dials the remote maintenance device 5 through the public line 6 to report the occurrence of the confinement failure ( Step S15).

Thus, in the case where the elevator control device 2 has a relatively simple structure and does not include a microcomputer, the one in which the microcomputer is mounted on the remote monitoring terminal device 3 side is used, and the elevator control device is used. A record of elevator operation is automatically created and retained by processing the signal from 2, and the operation history is transmitted periodically in response to a request from the remote maintenance device 5 side.
When an abnormality occurs, the abnormality is detected and automatically notified to the remote maintenance device 5, and the remote maintenance device 5 is provided with a function of requesting maintenance or rescue, thereby enabling high-performance remote monitoring.

[0026]

As described above, according to the present invention, the remote monitoring terminal device receives various signals from the elevator control device, creates and records the operation history of the elevator, and determines the failure state of the elevator. Elevator controller does not have complicated calculation processing capacity because it records and records operation history regularly to remote maintenance equipment through public line, and when abnormality occurs, operation status is immediately transmitted to remote maintenance equipment. Even if the remote monitoring terminal equipment is used to monitor the elevator status and if necessary, the remote maintenance equipment can be automatically notified of the abnormal status via the public line, and a relatively inexpensive terminal equipment is introduced. This can dramatically improve remote monitoring performance.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is a functional block diagram showing a detailed internal configuration of an elevator control device and a remote monitoring terminal device in the above embodiment.

FIG. 3 is a flowchart showing an elevator operation history creation and recording operation of the above embodiment.

FIG. 4 is a flowchart showing an elevator state determination and automatic alerting operation of the above embodiment.

[Explanation of symbols]

 1 Elevator System 2 Elevator Control Device 2a Contact Group 3 Remote Monitoring Terminal Device 3a Operating State Detection Unit 3b Operating State Processing Unit 3c CPU 3d Operating State Recording Unit 3e Operating History Recording Unit 3f Modulation and Demodulation Circuit 3g Network Control Unit 4 Remote Maintenance Center 5 Remote Maintenance equipment

Claims (1)

[Claims] 1. An elevator control device for controlling the operation of an elevator, an elevator remote maintenance device for monitoring the state of the elevator at a remote location, and a public line connecting the elevator control device and the elevator remote maintenance device to each other. In an elevator remote monitoring device comprising a remote monitoring terminal device provided on the elevator control device side for transmitting information from the elevator control device to the elevator remote maintenance device, in the remote monitoring terminal device, the elevator control device A signal receiving unit that receives various signals, an operation history recording unit that creates and holds an operation history of the elevator based on various signals received by the signal receiving unit, and an elevator based on various signals received by the signal receiving unit Information about the operation status recording unit that determines and records the failure status and the operation history recording unit Provide a network control unit that transmits to the elevator remote maintenance device via a public line for a period of time, and automatically transmits the information recorded in the operation status recording unit to the elevator remote maintenance device via a public line when an abnormal failure occurs. Elevator remote monitoring device.