JPS6363465B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a device for remotely monitoring elevators.

When an elevator malfunction occurs, a device is used that automatically reports this to a central monitoring center via a telephone line.

However, with this device, it is not possible to know what kind of failure has occurred in the elevator, or what kind of failures have occurred in the elevator in the past. Furthermore, one transmitting device and one telephone device are required for each elevator, which not only does not provide a sufficient reporting function but is also expensive.

This invention improves the above-mentioned problem by selecting one of a plurality of fault signals issued for each elevator, and reporting this fault signal and building number to a monitoring center via a telephone line, where it is displayed. Therefore, it is an object of the present invention to provide a remote monitoring device for elevators that can transmit malfunctions of a large number of elevators using one telephone device and a transmitting device, and can be configured at low cost.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

In Figure 1, 1 to 9 are the 1st to 9th buildings, respectively.
11A to 11E are control panels for elevators A to E installed in the first building 1, 12A to 12E
are failure detection devices connected to the control panels 11A to 11E, respectively, and 13 is a failure detection device 12A to 12E.
14 is a telephone, 15 is a phone number selection device connected to
16 is a well-known telephone exchange that is connected to the telephone lines 1X to 9X from each building and sends the output to the telephone line 6Y; 1
7 is a monitoring center, 18 is a telephone of the monitoring center 17, 19 is a receiving device connected to the telephone line 16Y and the telephone 18, and 20 is a monitoring device connected to the receiving device 19.

In Figure 2, a is the first fault signal that becomes "H" when the intercom button is pressed in the elevator car or when the temperature of the hoisting motor rises, etc. When the is not running,
When the power supply fails or the safety circuit is activated,
The second failure signal is "H" when the destination button is pressed but the door does not open, etc., and c is when the car stops at the position where it should land, or when the door closes and closes repeatedly. 21A to 21D, the output becomes "H" after a certain period of time has passed after the input becomes "H", and when the input becomes "L", the output also becomes "L". 22A to 22D are counters that count the number of times the input becomes "H" and output becomes "H" when it reaches a predetermined value, 23A to 23C are OR gates, and a
-A to c-A are the outputs of the OR gates 23A to 23C, which are the first to third fault signals, 24 is a storage device that sequentially stores the input, 25 is a read button, and 26 is stored when the read button 25 is pressed. A reading device 27 reads out one content of the device 24, and a display device 27 temporarily stores input and displays a corresponding display.

In Figure 3, a-A to c-A...a-E to C-E are the first to third fault signals of machines A to E, respectively, and 31A to 31E are input when input G becomes "H". Gate circuit that outputs A to C, aa-A to cc-
A...aa-E to cc-E are gate circuits 31A to 31
At the output of E, the first to third fault signals, 32A to 3
2E is an OR gate, 33A to 33E are AND gates, 34 is an OR gate, 35 is a pulse output at a frequency of, for example, 10 kilohertz, 36 is an AND gate, and 37 is an output 37a to 37e in which "H" is sequentially moved. When the output of the AND gate 36 becomes "L", the above movement stops and the outputs 37a to 37e at that time
This is a circular shift register in which either one of the registers becomes "H".

In FIGS. 4 and 5, 51A to 51E are OR gates, 52 is an OR gate, and 53 is a monitoring center 17.
an automatic dialing device that emits an automatic dialing signal 53a to automatically dial the telephone number of the telephone 18;
54 is a building number transmitter that stores the building number 54a and transmits it when the automatic dialing is completed; 55 is a failure signal aa-A to cc-A...aa-E;
Parallel-to-serial converter that converts ~cc-E into a serial signal, 5
6 is OR gate, 57 is always OR to telephone line 1X
This is a disconnector that connects the gate 56 and artificially switches it to the telephone set 14 if necessary.

In FIGS. 6 and 7, 91 is a separator similar to the separator 57, 92 is an automatic receiving device, 93 is a serial-to-parallel converter that converts a serial signal into a parallel signal, and 93a--
~93i is the output of the serial-to-parallel converter 93, and the first to ninth
building number signal, aaa-A~ccc-A...aaa-E~
ccc-E is the first to third fault signals of machines A to E, 101 is a register for recording input, 1
02 is a display device that displays the output of the register 101, 103 is an OR gate, and 104 is an alarm device such as a bell or buzzer.

Next, the operation of this embodiment will be explained.

Control panel 11 of elevator No. 1 in building 1
Either fault signal a issued from A is "H"
Then, the OR gate 23A of the failure detection device 2A
The first failure signal a-A, which is the output of , becomes "H". This first fault signal a-A represents a directly detected fault signal. Further, when any of the second failure signals b becomes "H", the timer 21 is activated after a certain period of time.
Any of the outputs of A to 21D becomes "H",
A second fault signal b which is the output of OR gate 23B
-A becomes "H". This second fault signal b-A
represents a failure signal in which an abnormality is detected continuously for a certain period of time. Further, when one of the third failure signals c becomes "H" and the number reaches a predetermined value, one of the outputs of the counters 22A to 22D becomes "H", and the third fault signal c, which is the output of the OR gate 23C, becomes "H". The failure signal c-A becomes "H". This third fault signal c
-A represents a failure signal that is detected after an abnormality has occurred a predetermined number of times and is predicted to become a failure in the near future.

Now, if the intercom button is pressed in the car of No. 1 in the first building 1, the first failure signal a-A becomes "H" as described above. This is then stored in the storage device 24. On the other hand, the first failure signal a-A is input to the machine selection device 13, and the output of the OR gate 32A becomes "H". On the other hand, the circulating shift register 37 outputs 3 in response to the pulse 35.
7a to 37e are circulating, and when the output 37a becomes "H", the AND gate 33A becomes "H"
becomes. The gate circuit 31A is now opened and the first fault signal corresponding to the first fault signal a-A is opened.
aa-A becomes "H". At the same time, OR gate 34
Since the output of the AND gate 36 becomes "H" and the output of the AND gate 36 becomes "L", the shift register 37 stops with the output 37a being "H". The first failure signal aa-A is input to the transmitter 15, the output of the OR gate 51A becomes "H", and the output of the OR gate 52 also becomes "H". The automatic dialing device 53 then operates and automatically dials the telephone number of the telephone 18 of the monitoring center 17. This operation is performed between the disconnector 57, the telephone line 1X, the telephone exchange 16, the telephone line 16Y, the disconnector 91, and the automatic receiving device 92, as is well known. When this automatic dialing is completed, the automatic dialing device 53 sends a signal to the building number transmitting device 54, which transmits the building number (“1” in this case) to the telephone line 1X. When the transmission of the building number is completed, the building number transmitter 5
4 issues a signal to the parallel-to-serial converter 55, where the first
A fault signal aa-A is transmitted. If the second and third failure signals bb-A and cc-A are also inputted to the outside, these are converted into serial signals and transmitted as shown in FIG.

Now, the first failure signal aa-A input to the transmitting device 19 via the telephone line 16Y passes through the isolator 91 and is received by the automatic receiving device 92. The serial-to-parallel converter 93 performs signal conversion, and the first building number signal 93a and the first failure signal aaa-A become "H". This is input to the monitoring device 20,
It is recorded in the register 101. Now, the output of the OR gate 103 becomes "H", the alarm 104 sounds, and the building number and fault (in this case, the directly detected fault, that is, the first fault) are displayed on the display 102.
will be displayed. Due to these, the staff will be located at Building 1
After learning that a directly detected failure had occurred in the elevator of Unit 1, he went to repair it.

When the staff member arriving at the machine room of No. 1 presses the read button 25, the readout device 26 is activated, and the failure signal a stored in the storage device 24 is read out and displayed on the display device 27. This display allows you to know all the data that has been stored up to that point, and use it as a reference when troubleshooting. When the repair is completed, the first failure signal a becomes "L"
and returns to the initial state.

In the embodiment, the generation of the first fault signal a has been described, but it will be easily understood that the same applies to the other second and third fault signals b and c.

Note that it is also possible to implement as follows.

(a) The first to third fault signals a-A to c-A are outputted separately for each fault (for example, passenger trapped, unusable, faulty landing, faulty door opening/closing, etc.).

(a) The storage device 24 supplies the battery as a power source during a power outage and retains the memory.

(c) Instead of reading out using the read button 25, the information is automatically read out and displayed in sequence.

(D) Power outage and failure detection device 1 among failure signals a to c
This also includes failures of 2A to 12E themselves.

(e) The storage device 24 stores the failure signals a to c and the time of occurrence thereof, so that it is possible to know when the failure occurred.

(F) The car selection device 13 is configured to initially output only the car in which the failure has occurred, but thereafter also output a failure signal for the car in which the failure has occurred.

(g) The car selection device 13 is configured to output all failure signals for cars in which a failure has occurred, but only the failure signal that occurs first for that car is output.

(H) Prioritize the failures and have the machine selection device 13 output only those with high priority.

(i) In the transmitting device 15, as shown in FIG.
Timing slots for all machines No. 1 to No. 5 were provided to distinguish the machines, but this is output using the timing slot for one machine as the machine number and failure signal.

(j) If the call is busy when the call is automatically dialed, the call will be automatically dialed again after a certain period of time.

(S) A plurality of telephones are installed in the receiving device 19, and if the telephone is busy when automatically dialed, other telephones are automatically dialed.

(b) Direct communication between the intercom in the car and the monitoring center 17 is enabled.

(S) The monitoring device 20 is configured to send a control signal (for example, a signal to automatically stop) to the elevator to control the elevator.

(C) The elevator and the monitoring device 20 are configured to send and receive operation confirmation signals.

(S) Power reception/transformation other than elevators, air conditioning,
Also applies to equipment such as water supply, drainage, and boilers.

As explained above, this invention classifies and detects failures in elevators installed in buildings, generates a failure signal for each, converts this into a serial signal, outputs the number of the building, and sends this through a telephone line. Since the data is transmitted to the monitoring center, received and displayed, the fault lines of many elevators can be transmitted using a single telephone device and transmitter, making it possible to configure the system at low cost, and to monitor it. This makes it easier to respond to staff at the center.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of an elevator remote monitoring device according to the present invention, and FIG.
3 is a block circuit diagram of the machine selection device, FIG. 4 is a block circuit diagram of the transmitting device, FIG. 5 is a transmission signal diagram of FIG. 4, and FIG. 1 is a block circuit diagram of the receiving device shown in FIG. 1, and FIG. 7 is a block circuit diagram of the monitoring device. 1 to 9...1st to 9th buildings, 11A to 11E...
...Elevator control panel for units A to E, 12A
~12E... Same as left failure detection device, 5... Transmitting device, 1X to 9X... Telephone lines of the 1st to 9th buildings,
16...Telephone exchange, 16Y...Telephone line, 17
... Monitoring center, 19 ... Receiving device, 20 ... Monitoring device. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1 A failure detection device that has a failure detection circuit that detects failures of elevators installed in a building for each elevator and failure and issues a corresponding failure signal, and also stores the failure signal and reads and displays the stored contents at necessary times. , a transmitting device that converts the output of this failure detection device into a serial signal and outputs a pre-stored building number, a telephone device that automatically transmits the output of this transmitting device through a telephone line, and a telephone device that is installed in a monitoring center and that is described above. and a monitoring device that displays the output of the receiving device for each building, each elevator, and each failure, and the failure detection circuit is configured for each elevator to directly detect the occurrence of the failure and perform a first detection. An elevator consisting of a circuit that issues a fault signal, a circuit that detects a fault that continues for a certain period of time or more and issues a second fault signal, and a circuit that detects a fault that repeats for a predetermined number of times or more and issues a third fault signal. remote monitoring equipment.