JPS5834384B2 - elevator control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator control device that enables subsequent service even if a signal transmission device between an elevator group management device and each control device that controls each elevator fails. It is.

In recent years, elevator control devices have also become semiconductors, and elevator systems incorporating electronic computers are being put into practical use one after another.

Generally, a group control elevator that manages multiple elevators as a part is composed of a common group control device for the multiple elevators and a plurality of control devices that control each elevator. Each elevator is controlled to provide optimal service to customers.

Therefore, a large number of signals are exchanged between each device, and these signals are usually multiplexed to save cost.

However, conventional elevator control devices do not take into consideration what to do in the event that the multiplex signal transmission device fails, so in the event of a failure, each information communication becomes incoherent, and sometimes passengers are left in the car. Inconveniences such as confinement also occurred.

For example, if a signal transmission device malfunctions and the group control device no longer issues a hall call to a certain elevator,
The elevator will no longer be in service.

Further, when a door closing command is issued, the elevator will no longer be able to open its doors, trapping passengers inside the car.

This invention solves the above-mentioned drawbacks, and provides an elevator control device that automatically handles the failure of the signal transmission device so that the service can be continued even after failure, and does not cause any inconvenience to elevator users. It is something.

This invention will be explained below. FIG. 1 is a block diagram showing the general configuration of an embodiment of the present invention, in which 1 is a group management device, 2 is a control device for the first car, and its movements are controlled by the group management device 1'.

Note that the configuration of the other units is the same as the first unit, so 1.
Only the control device of the machine is shown.

The car 3 is mounted in the hoistway 4 and moves relative to the building 5. The building 5 has, for example, 10 floors, but to simplify the drawing, only the parts related to the 1st, 2nd, and 10th floors are shown. Indicated.

The car 3 is suspended by a rope 6.

The rope 6 is hung on a miso wheel 8 mounted on the shaft of a hoisting motor 7.

A counterweight 9 is tied to the other end of the rope 6.

A governor rope 10 tied to the upper and lower parts of the car 3 is hung around a governor wheel 11 and a pulley 12.

The pickup 13 is arranged so as to detect the amount of movement of the car 3 by the effect of the holes 11a provided at intervals in the peripheral direction of the governor wheel 11.

The intervals between the holes 11a are such that, for example, one pulse is output every 12 times the car travels.

A pickup 13, which may be optical or magnetic, emits pulses in response to the movement of the hole 11a.

The pickup 13 is connected to a pulse detector 15 which provides a distance pulse for the landing selector 14.

The car calls, as specified by the push pump array 16 on the car 3, are stored and serialized in the car call controller 17.

As a result, the serialized call information is sent to the hall selector 14.
sent to.

Pushbuttons installed in landings, for example, the first floor ascending pushbutton 18
．． The descent pushbutton 20 on the 10th floor, and other intermediate floors (
Hall calls, such as those designated by the lift pushbuttons 19 (for the second floor in FIG. 1), are stored and serialized in the hall call controller 21.

As a result, the serialized hall call is sent to interface 22.
The data is sent to the system processor 23 via.

The system processor 23 through the interface 22
A landing call to be answered by the car 3 is sent to the car 3, each floor of the building 5 is efficiently put into service, and the car 3 is effectively used.

Landing selector 14 processes the distance pulses from pulse detector 15 to generate position information for the heel 3 and also sends the processed distance pulses to velocity pattern generator 24.

This speed pattern generator 24 generates a speed reference signal for a motor controller 25, which in turn supplies a drive voltage to the hoisting motor 7.

The landing selector 14 continues to track car 3, i.e. car 3
continues to track service calls and requests acceleration signals to speed pattern generator 24.

In addition, car 3 decelerates according to a predetermined deceleration pattern,
and provides a deceleration signal for the speed pattern generator 24 at the precise time required to stop at a given floor.

Furthermore, it supplies a signal for controlling the door operating device 26, and controls the reset of the car call controller 17 and the hall call controller 21 when the car door 3 responds to a car call or a hall call.

Landing, that is, floor alignment, is performed by a hoistway converter that utilizes a guide plate 27 provided on each floor and a transformer 28 provided in the car 3.

Reference numeral 29 denotes an interface that receives information generated by the hall selector 14 and necessary for group management, such as car position, service direction of the heel 3 such as up or down, load in the car, car call, stopped, running, etc. It serializes faults 5, etc. and supplies them to the group management device 1, while receiving serialized information from the group management device 1, such as the hall call to be answered.

Next, a specific embodiment of the ink faces 22 and 29 of the present invention, that is, a signal transmission device, will be described with reference to FIGS. 2 and 3.

FIG. 2 is a circuit diagram showing an embodiment of the present invention, and FIG. 3 is a time chart showing the operation of the circuit.

In these figures, 30 is an oscillator, 30a is its output pulse signal, and 31 is a main pulse generator, which is mainly composed of a counter, a decoder, etc., and generates pulse signals 31a to 31 shown in FIG.
These pulse signals 312 to 31r are used as pulse signals corresponding to hall calls for the 1st floor to 0th floor, respectively, and the pulse signal 31a is further used as a reference pulse.

32a to 32i are assigned ascending hall call signals for the 1st to 9th floors to which the No. 1 car responds, 32j to 32r are assigned descending hall call signals for the 2nd to 10th floors, 33a to 33r are AND gates, 34 is an OR gate, and 34a is its output signal, 35
is the pulse signal 30a of the oscillator 30 and the reference pulse 31
A slave pulse generator 36 generates pulse signals 358 to 35r based on a, and generates an output signal "H" when it detects that the output signal 35a does not come in a certain period or continues to come. The failure detection circuits 37a to 37r are A
ND gates, 38a-38r are prohibited gates, 39a-3
9r is a memory, which is set when the ``H'' signal is input to the S terminal, and outputs the output signal t+H11 from the Q terminal.After that, even if the input signal of the S terminal becomes II L ?+, it maintains that state, and the R terminal When the nH+1 signal is input to the terminal, it is reset, and the output signal ?+L It is generated from the Q terminal, and then,
Even if the input signal of the R terminal becomes L'', that state is maintained.

408 to 40r are OR gates.

Now, assuming that the only assigned hall call for the No. 1 car is the first floor ascending hall call, the signal 32a is H''.

In this state, when the pulse signal 31a becomes II H91, the AND gate 33a emits an output signal "H1+", and the OR gate 34 also emits an output signal 34a of °H° only while the pulse signal 31a becomes °H". .

At that time, since the slave pulse generator 35 is also emitting the signal 35a, the output signal of the AND gate 37a becomes "H".
Memo') 39a is set and outputs the output signal "HH" from its Q terminal, and the signal is passed through the OR gate 40a and treated as a first floor assigned up hall call.

When Car No. 1 runs to respond to the hall call and performs service, the first-floor ascending hall call is canceled.

Therefore, the assigned climbing hall call for the first floor of the No. 1 car is also canceled, and the signal 32a becomes L+1.

Therefore, even if the pulse signal 31a is emitted, the output signal of the AND gate 33a remains "L l+", so O
The output signal 34a of the R gate 34 also remains at L II.

At that time, since the pulse signal 35a is being emitted, the input condition of the prohibition gate 38a is satisfied, and the prohibition gate 38a is output as an output signal? 1 Emit H9.

Therefore, Memo 39a is reset, the output signal of its Q terminal becomes ``L'', and the output signal of OR gate 40a also becomes ``L'', so the assigned climbing hall call for the 1st floor of Unit 1 is no longer available. become.

Thereafter, when some kind of failure occurs and the failure detection circuit 36 issues an output signal "H91", all OR gates 403-40r issue an output signal nHIT.

In other words, if the signal transmission device malfunctions, (1) the signal will serve as one assigned to all hall calls, that is, as a stop at each floor.

It goes without saying that if the cars 3 other than car No. 1 are normal at this time, each car 3 will service only the four assigned hall calls.

Figure 2. Going up and down at signals other than those shown in Figure 3.

”
It goes without saying that signals such as commands regarding two doors open and two doors open in the two service directions are also transmitted from the group management device.

Including those signals, if the signal transmission device is out of order, processing can be done so that the subsequent service of the failed elevator can be continued.

Although not shown in FIGS. 2 and 3, it goes without saying that the status signal of the car 3 of car No. 1 is transmitted from the ink face 29 to the interface 22.

At that time, if the ink face 22 detects that the signal transmission device of the No. 1 car is out of order and gives all landing calls to the No. 1 car, the No. 1 car can continue its service from now on.

Note that as a method of failure detection, instead of determining a failure upon one detection, an actual failure may be detected only when failure is detected several times within a certain period of time.

In the above explanation, all hall calls are given in the event of a failure, but it is also possible to give only some hall calls, for example, only those on floors that are expected to be crowded.

Next, different examples of methods for transmitting signals from the group management device 1 to each control device 2 will be explained with reference to FIG.

21a in FIG. 4 is an interface.

In this case, the interface 22 transmits the up and down landings to which the serialized car No. 1 should respond (irrespective of the presence or absence of a landing call), and the serialized landing calls for all floors are transmitted from the interface 21a. However, in the interface 29, only the hall call for which the AND condition from the interfaces 21a and 22 is satisfied is the hall call to which the No. 1 car should respond.

For example, if interface 22 gives the climbing halls for the 1st to 3rd floors, and interface 21a gives the climbing hall call for the 2nd floor, then the No. 1 machine only needs to respond to the climbing hall call for the 2nd floor. Become.

The advantage of this method is that if the signal transmission device between the interfaces 22 and 29 fails, the
If there is a failure between the interfaces 21a and 29, the interface 22
Elevator operating efficiency can be improved by determining which hall calls should be answered, such as going up or getting off.

Although the above description uses a serialization means that scans the signal with pulses, it is clear that any other serialization means can be used.

Furthermore, the method of transmitting signals between the group management device 1 and each control device 2 is to transmit signals using one or multiple wires, and the ink face 21
Various ideas can be considered, such as changing the information between a, 22, and 29 to information other than that described, and these can be easily inferred from the above explanation.

As explained in detail above, the present invention provides a failure detection means in the control device provided for each car, and when a failure occurs in the signal transmission device provided for each car, the failure detection means outputs an output signal. Therefore, if the signal transmission device fails, the car is removed from group control and is allowed to service some or all of the hall calls independently, and other cars that do not fail generate a signal to continue service during group control. Since the service can be continued even in the event of an emergency, there is an advantage that an elevator system with very good service can be provided to elevator users.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an overall schematic configuration of an embodiment of the invention, FIG. 2 is a circuit diagram showing an embodiment of the invention, and FIG. 3 is for explaining the circuit operation of FIG. 2. FIG. 4 is a block diagram showing another embodiment of the present invention. In the figure, 1 is a group management device, 2 is a control device, 3 is a cage, and 14
is a hall selector, 15 is a pulse detector, 16 is a push button row, 21 is a hall call controller, 22 is an interface, 23
is a system processor, 24 is a speed pattern generator, 25 is a motor controller, 26 is a door operator, 29 is an interface, 30 is an oscillator, 31 is a main pulse generator, 312 to 31
r is a pulse signal, 32a to 32i are assigned up hall call signals, 32j to 32r are assigned alighting hall call signals, 33
a to 33r are ANT) gates, 34 is an OR gate, 35
is a slave pulse generator, 36 is a failure detection circuit, 37a to 37
r is an AND gate, 38a to 38r are prohibition gates, 39
3 to 39r are memories, and 408 to 40r are OR gates. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1. Consists of a group control device, a signal transmission device, a plurality of cars, and a signal transmission device and control device provided for each of these plurality of cars, and the group control device receives hall call signals emitted from each floor and from each of the control devices. In an elevator control device that performs system processing upon receiving various types of car information, and transmits the results to each car via the respective control devices to perform predetermined control, each of the control devices is provided with a failure detection means. Furthermore, when a failure occurs in the signal transmission device provided for each car, the failure detection means outputs the failure detection means to exclude that car from group management, and causes the car to service some or all hall calls independently, while other cars are managed by the group. An elevator control device characterized in that it is provided with means for generating a signal to continue the service.