JPS6337086A - Calling register device for elevator - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an elevator call registration device that performs elevator call registration control.

(Prior Art) In recent years, it has become common for elevator control devices to use small computers such as microcomputers to store elevator calls in their storage devices. ing.

FIG. 6 shows a schematic configuration of a circuit portion used for storing a call input signal in a storage device in a microcomputer used in an elevator control device.

In the figure, 1 is a power supply line, and 2a.

-2x is a call button switch for registering a hall call or a car call, which is provided at each stop floor of the elevator or inside the elevator car. These call button switches 2a to 2x are switches that are turned on only when they are pressed, and these call button switches 2a.

By pressing ~2X, the call input signal is transmitted to the microcomputer 4 via the call input circuit 3. Then, the microcomputer 4 side causes the processor 4a to execute a predetermined operation according to the input processing routine or interrupt processing routine of the control program stored in the memory 4b, reads the call input signal from the call input circuit 3, and reads the call input signal from the memory 4b. to be memorized. Furthermore, the processor 4a executes the output processing routine of the control program, outputs a lighting command for the call button switch that generated the read call input signal via the output circuit 5, and turns on the call registration indicator light corresponding to the corresponding call button switch. Turn on 6a and 6x,
Let me know that you have registered.

The calls registered and stored in this way are the input/output information obtained when the elevator responds to the desired call.
Upon receiving the till signal (not shown), the processor 4a
At the same time as the process of erasing the call that has become obsolete from the memory 4b, a turn-off command is issued to the call registration indicator light corresponding to the call via the output circuit 5 to turn it off.

(Problems to be Solved by the Invention) As described above, the conventional call registration device provides the output of the call button switch to the microcomputer 4 via the input circuit 3,
The call information is stored here, and a command is given via the output circuit 5 to the call indicator light corresponding to the call button switch that receives the call from the microcomputer 4 side, so that it lights up to indicate that it has been registered. Furthermore, after the response is completed, the registration is deleted and a command is given to the call indicator light to turn it off. However, in such a configuration, signal lines must be provided individually for each call button switch and its corresponding call indicator light.

For example, in the case of a car call registration device, the service floor is 20.
If there were floors, in the case of hall call registration, each ball except the standard floor and the top floor would require two systems for ascending and descending calls, and at least each call button switch and corresponding call indicator light. (18X2)+ (2X1)
= twice as many as 38, that is, 76 systems of signal lines are required, and in the case of car call registration, 20X2 = 40 signal lines are required. As a result, as buildings become very high-rise, the number of wires increases, which not only increases the cost of the system, but also
Elevator installation requires a lot of wiring work, and there is also the risk of making connection mistakes. Furthermore, there were other problems such as the control device becoming larger.

Therefore, the object of the present invention is to reduce the number of wires connected to call switches and call registration indicator lights by half, thereby reducing the number of man-hours required for wiring work and reducing system costs. Our goal is to provide the following.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above object, the present invention is configured as follows. That is, a registration indicator light corresponding to the call button switch that registers the call based on the call button switch signal generated by operating the call button switch for registering a call in the elevator and displays that the call has been registered. In the elevator call registration device, the elevator call registration device is equipped with a registration control device that controls lighting of the registration indicator light, deletes the registration after responding to the call, and controls the turning off of the registration indicator light, and the registration control device is constituted by a computer, and each The call button switch is connected in series with the corresponding registration indicator light and connected between power and N, and the registration control device registers the call button switch in correspondence with each combination of each call button switch and registration indicator light. An input circuit is provided to obtain the terminal signal on the indicator light side, and the registration indicator light output from the computer is turned on in correspondence with each combination of each call button switch and the registration indicator light.
A switch is provided which operates in response to the lights-off command, and this switch is connected to the call registration indicator light side of the combination of each corresponding call button switch and registration indicator light to form a power supply opening/closing circuit for the registration indicator light. Configure.

(Function) In such a configuration, the registration control device is constituted by a computer, and each call button switch is connected in series with a corresponding registration indicator light and connected between power supplies. In addition, the above-mentioned registration system ill device is provided with an input circuit that obtains a terminal signal on the registration indicator light side of the call button switch in correspondence with each combination of each call button switch and registration indicator light, and A switch is provided corresponding to each set of call registration indicator lights and operates in response to the call registration indicator light on/off command output from the computer, and this switch is connected to each corresponding call button switch. It is configured to be connected to the registration indicator light side of the registration indicator light set to form a power switching circuit for the registration indicator light.

Therefore, on the registration control device side, the signal level on the call registration indicator light side of the call button switch changes due to the operation of the call button switch, and this is used as an operation signal for the call button switch. 1. This is given to the computer via the input circuit, and the computer side identifies from which input circuit the signal was taken in, thereby identifying where the call occurred and registering the call. Further, based on this registration status, a turn-on command and a light-off command from the computer are given to the switch corresponding to the combination of the call button switch and registration indicator light for which the call has been registered, thereby controlling the switch. The switch is connected to the registration indicator light side to form a power supply opening/closing circuit for the registration indicator light, so that the registration indicator light is controlled to be turned on or off in accordance with whether the switch is turned on or off. Therefore, each input circuit is monitored sequentially by a computer, and when a call is received, after registering it, a command is given to the corresponding switch to display the registration, it is turned on, and when the service is completed, it is turned off. It is possible to perform registration, registration display, and deletion.

In this way, the registration control device of the present invention is configured using a computer, and the registration control wJ device receives terminal signals on the registration indicator light side of the call button switches in correspondence with each combination of a call button switch and a registration indicator light. In addition, a switch is provided for each combination of a call button switch and a call registration indicator light, and the switch operates in response to a call registration indicator light ON/OFF command output from the computer. Moreover, this switch is configured to connect to the registration indicator light side of the corresponding combination of call button switch and registration indicator light to form a power supply opening/closing circuit for the registration indicator light, so it is connected to the registration control side. Each call button switch and call registration indicator light can be connected to the assembled side using one signal line each.

Therefore, according to the present invention, the number of wires connected to the call switch and the registration indicator light can be halved, and the number of man-hours for wiring work can be reduced, as well as the cost of the system.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

FIG. 1 is a block diagram showing an embodiment of the present invention, and this figure shows the configuration for a call button switch 1.
It is assumed that the other call button switches also have the same configuration. However, the microcomputer 4 is shared. In the figure, 1 is a power line (positive side), 2 is a call button switch, 6 is a call registration indicator light, and 4 is a microcomputer, which are the same as those of the conventional system.

This device is broadly divided into a call registration switch section 30 and a call registration control section 31. The call registration switch section 30 consists of a call registration indicator light 6, a limiting resistor 20 connected in series thereto, and a call button switch 2.

A series circuit of the call registration indicator light 6, the limiting resistor 20 included therein, and the call button switch 2 is connected between the power source 1 and the ground, and when the call button switch 2 is pressed, the call registration indicator light 6 lights up.

Further, the call registration control section 31 is provided between the data bus 16 of the microcomputer 4 and the input/output section of the call registration control section 31, and is connected to a "high impedance" signal from the control input.
"Input" [The 3-state buffer 7, which is an input/output switching gate that can select three states of the output J, and the input chip select signal 12 output from the microcomputer 4 and the IO read signal 13 are logically summed together. , the OR gate (hereinafter referred to as OR
an input circuit consisting of a gate) 10a, a data latch 8 that latches data on the data bus 16 of the microcomputer 4; It is composed of an OR gate 10b which takes the OR logic of the output chip select signal 14 and the 10 write signal to be outputted and supplies it to the data latch 8 as a data latch clock signal 14a. The transistor 9 has its collector side connected to the registration control unit 3.
It is connected to the input/output section of No. 1, and the collector side is grounded. The input/output section is connected to the connection point between the call button switch 2 and the limiting resistor 20 of the call registration switch section 30 via the signal line 11.

Therefore, on the call button registration control section 31 side, the signal level of the signal line 11 changes due to the operation of the call button switch 2 in the call registration switch section 30, and the signal level of the signal line 11 changes.
It can be given to the microcomputer 4 via the 3-state buffer 7 as an operation signal. Further, the lighting command and the light-off command from the microcomputer 4 are given to the transistor 9 via the data latch 8 to turn the transistor 9 on and off, and the transistor 9 is turned on and off according to the command. The call registration indicator light 6 can be controlled to remain lit or turned off.

Therefore, the connection between the call button registration control section 31 and the call registration switch section 30 can be made using one shared signal line 11.

FIG. 2 is a time chart of the device shown in FIG.

In FIG. 2, (a) shows the operation of the call button switch 2, (b) shows the signal at the input/output section of the call button registration control section 31, and (C) shows the input chip select signal 12. d) shows the 10 read signal 13 and the buffer enable signal 12a, (e) shows the output chip select signal 14, (f) shows the 10 write signal 15 and the data latch clock signal 14a, and (Q) shows the transistor 9. Demonstrate operation.

Hereinafter, the operation of the present device will be explained with reference to these.

When the elevator user presses the call button switch 2, the signal $
The voltage level of 111 changes to the rOJ level (point A in FIG. 2(a)).

On the other hand, in the process in which the microcomputer 4 generally performs arithmetic processing according to its control program, in the external input processing routine, the input chip select signal 12 is output by the operation of the processor 4a, and after a certain period of time has elapsed, the input chip select signal 12 is output. output signal 13 (point B in FIG. 2(d)).

Then, an enable signal 12a for the 3-state buffer 7 is created from the logical sum of these signals, and the 3-state buffer 7 is activated by this signal 12a, and at that time, the signal I! A signal given to the input/output unit via the data bus 16, that is, a signal of level rOJ is read.
is stored in the memory in the microcomputer 4 via
Complete call registration. Next, in an external output processing routine, in order to give a lighting command indicating registration (for example, level "1") based on the registered call data to light the 5 call registration indicator light, the processor 4a performs the following steps: It outputs an output chip select signal 14 that specifies the call button switch section 30 corresponding to the registered call, and after a certain period of time has elapsed, it outputs a 1o write signal 15, and these two
Clock signal 1 of data latch 8 is obtained from the logical sum of two signals.
Make 4a. Then, this signal 14a latches the signal on the data bus 16 at that time (0 in FIG. 2(f)).
point).

Since this latch output is at level "1", the transistor 9 that receives this latch output is turned on, and the call registration indicator 6 lights up regardless of the state of the call button switch 2.

In addition, the call registered in this way is processed by an input/output signal (not shown) that is issued when the elevator responds to the desired call, and the registration data of that call is stored in the memory with the help of the processor 4a. , and complete the call registration deletion process upon completion of the service. Next, a light-off command (for example, set to "0" level) accompanying this call registration cancellation
In the external output processing routine to output the 5-call registration indicator light to the data bus 16 and turn off the 5-call registration indicator light, the processor 4a performs an output chip select that specifies the call button switch unit 30 corresponding to the canceled call. signal 1
4, and after a certain period of time, 10 write signal 1
5, and the clock signal 14a of the data latch 8 is generated from the logical sum of these two signals. And this signal 1
4a, the signal on the data bus 16 at that time is latched.

Since this latch output is at level "0", the transistor 9 receiving this latch output is turned off, and the call registration indicator light 6 is turned off (point D in FIG. 2(g)).

The period T1 in Fig. 2 is the same time as the arithmetic processing, and although it varies depending on the control program, capacity, and basic clock signal frequency of the microcomputer, it is about several m5eC, which is the sensitivity of this T1 call detection operation. . Furthermore, in order to increase the sensitivity of the call detection operation, there is generally a method of input/output using interrupt processing, but the operation timing of this device is basically the same.

According to the present device, a call registration operation can be realized with one line for one call registration switch unit.

FIG. 3 shows another embodiment of the invention. In the previous embodiment, whether the microcomputer 4 in the call registration control section 31 permits call registration or not, the call registration indicator light 6 always lights up when the elevator user operates the call button switch 2. In the case of such a system, it may be undesirable depending on how the call button switch is used.

Therefore, in the configuration shown in FIG. 3, the call button switch section 30 has a limiting resistor 21 further inserted between the call button switch 2 and the ground point side compared to the circuit structure shown in FIG. In order to limit the current so that the call registration indicator light 6 does not light up when the call button switch 2 is operated, the resistance value of the limiting resistor 21 is selected based on the rating of the call registration indicator light 6.

As a result, the voltage level V11 of the signal line 11 is set to Vba, the voltage across the registration indicator lamp is Vba,
If the resistance values of resistors 20 and 21 are V2O and V21, respectively, when the call button switch is not operated, it is V11 and Vcc, and when the call button switch is operated, it is V11 ~ (R21/ (R20 + R21))・(VC
C−Vba) Vba=O・ (1). That is, the voltage drops with respect to VCC by the voltage divided by the limiting resistors R20 and R21. Therefore, by appropriately setting the limiting resistors R20 and R21, it is possible to prevent the call registration indicator light 6 from lighting up when the call button switch 2 is operated.

Further, in FIG. 3, the call registration control section 31 is constructed by adding a switch operation detection circuit 17 to the input side of the three-state buffer 7 in addition to the circuit shown in FIG. This switch operation detection circuit 17 is a circuit that detects a change in the input/output signal @voltage V11 from the signal line 11 when the user operates the call button switch 2, and an example thereof is shown in FIG. 2 in the diagram
5 is a commonly used comparator, and 26 is a setter for setting the comparison reference voltage Vref.

The comparison reference voltage Vref value is set within the range of equation (2).

Vcc>Vref> (R21/ (R20+R21)
)・(Vcc−Vb'a)・(2>5th
The figure is a time chart of the switch operation detection circuit 17. In the figure, (a) shows the signal on the signal line 11, and (b) shows the output signal 18 of the switch operation detection circuit 17.

That is, when the user operates the call button switch 2 (
(section E in the figure), the output signal 18 becomes rOJ level,
It is detected that the call button switch 2 is operated. The output signal 18 is input to the three-state buffer 7, and thereafter the same operation as the above-described call registration operation is performed.

According to this configuration, lighting of the call registration indicator light 6 only by operating the call button switch 2 is prevented.

In this way, the registration control device of the present invention is configured using a computer, and the registration control device is configured to receive the registration indicator light side terminal signal of the call button switch in correspondence with each combination of the call button switch and the registration indicator light. In addition, the computer outputs a call registration indicator light corresponding to each combination of a call button switch and a call registration indicator light.
A switch is provided that operates in response to the lights-off command, and this switch is connected to the registration indicator light side of the combination of each corresponding call button switch and registration indicator light to operate the power supply opening/closing circuit for the registration indicator light. The registration control l side and the combination side of each call button switch and call registration indicator light are connected by one signal line each.

The computer sequentially monitors each input circuit, and when a call is received, after registering it, it gives a command to the corresponding switch to display the registration and turns it on, and when the service is finished, turns it off, so that the call is accepted and registered. , registration display and even deletion. Therefore, the wiring for each call button switch and registration indicator light can be shared by each set, and the number of wirings can be halved. Therefore, it becomes possible to reduce the man-hours for wiring work and the cost of the system, reduce wiring errors, and simplify the control device.

〔Effect of the invention〕

As described in detail above, according to the present invention, the wiring for each call button switch and registration indicator light can be shared by each group, and the number of wiring can be halved. In addition to being able to reduce system costs and reduce wiring errors,! I.J.
It is possible to provide an elevator call registration device that can also simplify the III device.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing one embodiment of the present invention, Fig. 2 is a time chart showing its operation, Fig. 3 is a block diagram showing another embodiment of the invention, and Fig. 4 is switch operation detection. FIG. 5 is a circuit diagram showing the configuration of the circuit, FIG. 5 is a time chart showing its operation, and FIG. 8 is a diagram for explaining a conventional example. 1... Power supply line, 2, 2a, ~2x... Call button switch, 4... Microcomputer, 4a... Processor, 4b... Memory, 6, 6a, ~6x...
Call registration indicator, 7...3 state buffer? , 8...
・Data latch, 9...Transistor, 10a, 10
b...OR gate, 11...signal line, 17...switch operation detection circuit, 20.21...limiting resistor. Applicant's agent Patent attorney Takehiko Suzue Figure 2

Claims (1)

[Claims] A call button switch signal generated by operating a call button switch for registering a call in an elevator registers the call and lights up a registration indicator light corresponding to the call button switch to indicate that the call has been registered. In the elevator call registration device, the elevator call registration device is equipped with a registration control device that controls the registration indicator light and turns off the registration indicator light after responding to the call by deregistering the registration and turning off the registration indicator light after responding to the call. The switch is connected in series with the corresponding registration indicator light and connected between the power supplies, and in the registration control device, the registration indicator light side of the call button switch is connected for each combination of each call button switch and registration indicator light. An input circuit is provided for obtaining the terminal signal, and
A switch is provided corresponding to each combination of the nominal button switch and registered indicator light, and operates in response to the registration indicator light ON/OFF command output from the computer, and this switch is connected to each corresponding nominal button switch. A call registration device for an elevator, characterized in that it is connected to the registration indicator light side of a set of registration indicator lights to form a power supply switching circuit for the registration indicator lights.