JP3217921B2 - Elevator abnormal situation determination device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator abnormality condition judging device for diagnosing an elevator when an abnormality occurs and judging the condition of the elevator.

[0002]

2. Description of the Related Art Conventionally, a terminal device for monitoring the operation status of an elevator is provided on a building side, and this terminal device and a monitoring center usually located in an elevator maintenance company are connected to each other via a telephone line to remotely control the elevator. 2. Description of the Related Art Remote monitoring devices for monitoring elevators have become widespread.

In this type of remote monitoring device, when an abnormal situation such as that the elevator car does not stop at a predetermined landing position or that the door does not close even after a predetermined time has occurred, the terminal device described above is used. Detects this abnormality and transmits abnormality report data to the monitoring center via the telephone line. The operator of the monitoring center that has received the abnormality notification data instructs the maintenance staff of the sales office in charge of the elevator based on the data to dispatch the operator to recover from the abnormality. Upon receiving the instruction, the maintenance staff goes to the building where the elevator is installed and performs an elevator recovery operation. As described above, when an abnormality occurs in an elevator, prompt processing is performed by reporting via a telephone line.

[0004]

In a conventional elevator remote monitoring device, it is determined that an abnormality is caused not by an abnormality of the elevator itself but by a usage of a user.
For example, the door does not close for a predetermined period of time when the open button in the car is kept pressed for a long time at the time of moving, or an abnormality that recovers naturally even if the elevator itself is abnormal,
For example, abnormality report data may be reported to a monitoring center due to an abnormality such as a car not stopping at a predetermined landing position due to a temporary contact failure of a relay contact. Even for such an abnormality, the maintenance staff is dispatched to perform the restoration work of the elevator, but when the vehicle arrives at the building, the elevator is normally restored. In such a case, in the case of an abnormality such as the former, the maintenance staff need not go to the building even if there is an abnormality report. Moreover, even in the latter case, the urgency of the recovery work is not high. However, at present, it is not possible to accurately confirm the situation after the occurrence of the abnormality from the outside, and therefore, when the abnormality report data is received, all maintenance personnel have been dispatched promptly.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide an elevator abnormal condition which can be checked from the outside to determine whether an abnormality that has occurred in the elevator requires dispatch of maintenance personnel. It is to provide a judgment device.

[0006]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention is provided for an elevator provided with a control device for outputting a control command and controlling the entire apparatus. When an abnormality is detected by the elevator abnormality status determination device that determines the status of the
The abnormality is judged whether or not restoration can be confirmed by diagnostic operation, and if it is judged that restoration can be confirmed ,
A diagnostic command unit that outputs a diagnostic operation command to the control device after a lapse of a fixed time, a memory unit that stores a result of the diagnostic operation, and a communication unit that is connected to the outside via a telephone line and performs communication. It has a configuration.

[0007]

Since the present invention is constructed as described above, if an abnormality occurs in the elevator, the diagnosis command section can confirm the recovery.
When it is determined whether or not the restoration can be confirmed , a diagnostic operation command is output to a control device that controls the entire elevator apparatus after a predetermined time has elapsed . Accordingly, the control device performs a diagnostic operation, and then the result of the diagnostic operation is stored in the memory unit. On the other hand, the outside, for example, the monitoring center, which has received the abnormality report, reads out the result of the diagnostic operation from the memory unit via the telephone line, and checks the condition of the abnormality occurring in the elevator. Thus, it is possible to externally confirm whether the abnormality that has occurred in the elevator requires the dispatch of a maintenance person.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an elevator abnormal condition judging apparatus according to an embodiment of the present invention. FIG. 1 is a block diagram showing an embodiment of an abnormal situation judging device of an elevator according to the present invention, FIG. 2 is a flowchart showing a processing order of the abnormal situation judging device of FIG. 1, and FIG. 3 is a memory of the abnormal situation judging device of FIG. FIG. 4 is an explanatory diagram showing a format of a unit.

In general, as shown in FIG. 1, an elevator includes a car 2b and a counterweight 2c that move up and down in a hoistway 2a, a rope 2d connected to each of the car 2b and the counterweight 2c, and a rope 2d. The control device 3 includes a hoist 2e to be wound, an arithmetic unit 3a and an input / output device 3b, and outputs an operation command to the hoist 2e. In addition, a monitoring center 5 and a sales office 6 connected via a telephone line 4 to a building in which the elevator configured as described above is installed include:
A monitoring device (not shown) including a communication device and a computer is provided therein.

An elevator abnormal condition determining apparatus 1 according to the present embodiment installed in the elevator having the above-described configuration.
A diagnostic command unit 1 that determines whether a diagnostic operation can be performed in response to the detection of an abnormality, and outputs a diagnostic operation command to the control device 3 when it is determined that the diagnostic operation can be performed.
a, a memory unit 1b for storing a result of the diagnostic operation,
Outside, for example, monitoring center 5 and business office 6 and telephone line 4
And a communication unit 1c that is connected through the communication unit 1 and performs communication.

In this embodiment, when the abnormal condition judging device 1 detects an abnormal condition of the elevator through the control device 3 as a step S1, the abnormal condition judging device 1 sends it to the monitoring center 5 through the communication section 1c and the telephone line 4 as a step S2. At the same time as transmitting the abnormality report data, the report time and the report contents are stored in the memory section 1b in the format shown in FIG. Thereafter, the diagnosis command section 1a determines whether or not the abnormality reported can be confirmed to be restored by the diagnostic operation as shown in step S4. If the abnormality cannot be confirmed, the process is terminated. If so, the process proceeds to step S5.

Here, the abnormality that can be confirmed to be restored by the diagnostic operation is, for example, a transient one in which the door is not closed for a predetermined time due to pressing the open button in the car for a long time when moving. Conversely, an abnormality whose recovery cannot be confirmed by the diagnostic operation is an abnormality that makes the elevator itself inoperable, such as the operation of an elevator safety device.

In order to confirm the recovery after a lapse of a predetermined time from the occurrence of the abnormality, as shown in step S5, a lapse of a predetermined time from the transmission is waited.
As 6, a diagnostic operation command is output to the control device 3. Accordingly, the control device 3 performs a diagnostic operation. As a specific diagnostic operation, for example, a straight operation from the lowest floor to the highest floor can be performed to check a traveling state and a door open / closed state. Then, the diagnostic command unit 1a waits for the end of the diagnostic operation as step S7, and stores the diagnostic operation end time and the diagnostic result in the format shown in FIG.

On the other hand, the operator of the monitoring center 5 having received the transmission of the abnormality report data is dispatched to the maintenance staff of the sales office 6 under the jurisdiction of the elevator based on the abnormality report data to recover the abnormality. Instructions. The maintenance person receiving this instruction reads out the data relating to the abnormality from the memory unit 1b in the abnormal condition judging device 1 via the telephone line 4 using a monitoring device (not shown) in the business office 6. As a result, the diagnostic operation is performed after the notification time, and if the diagnostic result is completed normally, the elevator is temporarily abnormal, but it is known that the elevator is operating normally thereafter. It can be determined that there is no need to go to the building for work.

In the embodiment constructed as described above, it can be checked from the outside, that is, at the sales office 6 where the maintenance staff is dispatched, whether or not the abnormality occurring in the elevator requires the dispatch of the maintenance staff. .

[0016]

As described above, the present invention is constructed as described above, so that it is possible to externally check whether or not an abnormality occurring in an elevator requires dispatch of a maintenance person. As a result, it is possible to prevent maintenance personnel from going to a recovery operation for a temporary abnormality, and thus it is possible to perform an effective monitoring operation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of an apparatus for determining an abnormal situation of an elevator according to the present invention.

FIG. 2 is a flowchart showing a processing order of the abnormal situation judging device in FIG. 1;

FIG. 3 is an explanatory diagram showing a format of a memory unit of the abnormal situation judging device of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Abnormal condition judgment apparatus 1a Diagnosis command part 1b Memory part 1c Communication part 3 Control device 4 Telephone line 5 Monitoring center 6 Sales office

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-358679 (JP, A) JP-A-5-162934 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 3/00-5/28

Claims (1)

(57) [Claims] [Claim 1] and outputs a control command, provided in an elevator equipped with a control device for controlling the whole apparatus, to diagnose the elevator when an abnormality occurs, the abnormal situation judgment device for an elevator to determine the status of the elevator, the abnormal when it is detected
The abnormality determines whether or not restoration can be confirmed by diagnostic operation, and when it is determined that restoration can be confirmed ,
A diagnostic command unit that outputs a diagnostic operation command to the control device after a lapse of a predetermined time, a memory unit that stores a result of the diagnostic operation, and a communication unit that is connected to the outside via a telephone line and performs communication. Elevator abnormal situation determination device.