JPH0718698Y2 - Elevator display controller - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an elevator display control device which is particularly convenient during maintenance service operation.

[Prior art]

Regarding elevator operation, conventional high-speed operation for moving general passengers to different floors of the building and elevator service personnel for maintaining and inspecting the installation state and operating state of equipment in the hoistway have been performed. Maintenance service operation exists. The switching between the high speed operation and the maintenance service operation is usually performed by operating the changeover switch provided in the switch box of the elevator car operation panel, but when the maintenance service operation is selected, the car call button and the hall call All the buttons are invalidated, and the ascending operation or the descending operation is performed at a low speed only while the ascending or descending button in the switch box is operated.

By the way, in the maintenance service operation, not only when you want to move the elevator car to each floor level,
It is often desired to stop at an arbitrary position between floors, but even if the service person in the conventional elevator car moves the elevator car up and down by operating the up button or the down button, the actual travel distance of the elevator car is Since I didn't know at all, I had to repeatedly operate and stop the elevator, open the car door each time, and move the elevator car to the desired position while checking the elevator car position.

For this reason, the applicant filed Japanese Utility Model Application No. 1-43581
No. 583) proposes an elevator control device that can automatically move an elevator car to a desired arbitrary position very quickly.

According to this proposal, it is possible to automatically move the elevator car by an arbitrary distance set by operating the elevator car call button or the like. Hereinafter, this proposal will be described with reference to the drawings, taking the case of an elevator for the fifth floor as an example.

FIG. 1 is a front view of an elevator car operation panel, FIG. 2 is a functional block diagram showing the overall configuration of this elevator control device, and FIG. 3 is a partial detailed view of FIG.
Is an elevator car operation panel, 1 to 5 are car call buttons for each floor of the 1st to 5th floors, 1a to 5a are normally open contacts of the car call buttons 1 to 5, and 12 is an instruction for maintenance service operation. A maintenance service switch, 13 is an ascending operation button for instructing an elevator ascending low speed operation, 13a is a normally open contact of this ascending operation button 13, and 14
Is a descent operation button for instructing the elevator descent low speed operation,
14a is a normally open contact of the lowering operation button 14, and 15 is, for example, 7
A display device composed of three display elements of a segment, 16 is a door open button, 17 is a door close button, and 21 is a detailed configuration which will be described later. A signal 21 corresponding to the value of the unit digit of the target moving distance (mm) of the elevator car according to the number of times the call button 1 is operated.
a (consisting of 21a _{1 to} 21a ₉ ), 21b (consisting of 21b _{1 to} 21b ₉ )
Similarly, for example, a distance signal generator 22 for outputting a signal 22a (22a ₁ to 2a) corresponding to the tens digit of the target moving distance (mm) of the elevator car according to the number of times the car call button 2 is operated.
2a ₉ ) and 22b (consisting of 22b _{1 to} 22b ₉ ), 23 similarly outputs the target distance traveled by the elevator car (mm) according to the number of times the car call button 3 is operated.
Of (consisting 23a ₁ ~23a ₉₎ signal 23a corresponding to the hundreds digit of the numerical value, a distance signal generator for outputting 23b (consisting 23b _{1 ~23a 9).} When the car call buttons 4 or 5 are operated, the distance signal generators 21 to 23 are all cleared when the car call buttons 1 to 3 are pressed incorrectly. 31 is a signal 21 generated by the distance signal generator 21
target travel distance decoder for converting a one digit of 7 display signal 31a for segment display elements 15a of the display device 15 (consisting of 31a ₁ ~31a _7), 32 is a signal 22a generated by the distance signal generator 22 Display unit 15 7-segment display element 15b
A target moving distance decoder 33 for converting into a display signal 32a (consisting of 32a _{1 to} 32a ₇ ) for use with a signal 33a generated by the distance signal generator 23 for the 100th 7-segment display element 15c of the display device 15. A target moving distance decoder 30 for converting into a display signal 33a (consisting of 33a _{1 to} 33a ₇ ), 30 is a distance signal generator 21 to
Binary coded signals from binary coded decimal signals 21b to 23b generated by 23
An encoder for converting to 30a, 41 is a well-known pulse generator that emits one pulse signal every time the elevator car moves, for example, 1 mm, and 42 is a pulse signal that the pulse generator 41 emits.
A counter that counts 41a, 43 issues a subtraction command 43a to a known elevator speed control device when the difference between the target distance signal 30a emitted by the encoder 30 and the movement distance signal 42a emitted by the counter 42 is reduced to a predetermined value. , the comparison device which emits a stop command 43b the difference becomes zero, + V is the positive supply _{voltage, r 1 ~r 3, r 12} ~r 14 is a resistor. Next, FF1 to FF9 in FIG. 3 showing the details of the distance signal generator 23 in FIG.
Is S when the positive power supply voltage + V is applied to the Vcc terminal.
_{1 to} S ₉ If a high level signal is input to the input terminals, the reset input terminals R _{1 to} R ₉ will continue to output a high level signal to the output terminals Q _{1 to} Q ₉ unless a high level signal is input. RS flip-flops, FF11 to FF19 are positive edge trigger type D flip-flops that operate at the rising edge when a pulse is input to the clock input terminals C _{1 to} C _9, and the pulse is input to the clock input terminals C _{1 to} C ₉ . This is a flip-flop in which the input applied to the D ₁ -D ₉ input terminals at the moment when is applied appears at the output terminals Q ₁₁ -Q ₁₉ as it is and maintains its output. AND1 to AND9 are AND elements, OR is an OR element,
MV is a multivibrator that outputs a clock pulse signal MVa, CT counts the input clock pulse signal and reaches a predetermined value, that is, the maintenance service switch 12 is operated, and a car call button (in the case of FIG. 3, a car call button is called. When a predetermined time (a time for which the maintenance service operation is completed each time) elapses after the button 3) is pressed and the RS flip-flop FF1 is in the set state, the RS flip-flops FF1 to FF9
Is a counter that outputs a reset signal to all of the. The other internal circuit configurations of the distance signal generators 21 and 22 are exactly the same as those of the distance signal generator 23 surrounded by the alternate long and short dash line, and are not shown.

Next, the operation of this device will be described.

Now, let's take as an example the case where a service person who has boarded an elevator car wants to raise the elevator car by 333 mm.First, the service person turns on the maintenance service switch 12 on the car operation panel and sets the distance signal generators 21-23. After applying the positive power supply voltage + V to the RS flip-flops FF1 to FF9,
Operate the car call button 3 three times to indicate the 100th position of the target movement distance. First, when the car call button 3 is pressed once, the RS flip-flop is closed by closing the normally open contact 3a in FIG.
Since a high-level signal is input to the input terminal S _{1 of} FF1, a high level signal is input to the output terminal Q ₁ of the RS flip-flop FF1.
A level signal is output and the state is maintained, the gate of the AND element AND1 is opened, the gate of the AND element AND9 is also opened, and the clock pulse signal MVa generated by the multivibrator MV is input to the counter CT to measure the time. To start.

Next, when the car call button 3 is pressed once more, the Hig signal is applied to the input terminal S ₂ of the RS flip-flop FF2 through the AND element AND1.
The signal of the h level is input, and a high level signal is output to the output terminal Q ₂ of the RS flip-flop FF2 to maintain that state and to open the gate of the AND element AND2. Then, press the car call button 3 once more (total 3 times)
Then, a high level signal is input to the input terminal S ₃ of the RS flip-flop FF3 through the AND element AND2, and a high level signal is output to the output terminal Q ₃ of the RS flip-flop FF3 to maintain the state.

Next, when the service person operates the car call button 2 three times to instruct the tens digit of the target movement distance, the RS flip-flop (not shown) in the distance signal generator 22 is operated in the same manner as described above.
When the car call button 1 for instructing the ones digit of the target moving distance is operated three times, the RS flip-flop (not shown) in the distance signal generator 21 is operated in the same manner. The output signal 21a (2 of the RS flip-flop in the distance signal generators 21 to 23
1a _{1 to} 21a ₉ ), 22a (22a _{1 to} 22a ₉ ), 23a (23a _{1 to} 23a ₉ ) are input to the respective decoders 31 to 33 and converted into signals, and the display device 15
The target moving distance information is displayed and guided to the elevator service person by the display elements 15a to 15c.

After confirming that the contents displayed by this display device 15 are correct, the serviceman presses the ascending operation button 13 which instructs the ascending low speed operation, and the normally open contact 13a is closed,
D flip-flops (third part) in the distance signal generators 21-23
Clock input terminal C ₁ of FF11 to FF19 in the figure)
A pulse is input to C ₉ and the output state of the RS flip-flop at that time appears as it is at the output terminal of the D flip-flop (Q _{11 to} Q _{19 in} FIG. 3) and the state is maintained. In terms of this case, 21b ₁ of the output signal 21b~23b the distance signal generator _{21~23, 21b 2, 21b 3,} 22b 1, 22b 2, 22b 3, 23
Only b ₁ , 23b ₂ and 23b ₃ are supplied with a high level signal to the encoder 30 to generate a binary coded signal 30a corresponding to the target moving distance. On the other hand, when the ascending operation button 13 is operated, the elevator car starts ascending movement by a well-known speed control device, and the pulse generator 41 outputs the pulse signal 41a according to the moving distance of the elevator car. Therefore, the subtraction device 43 calculates the distance of the elevator car to the target point one by one, and when this distance reaches a predetermined value, that is, the deceleration start distance, the subtraction device 43 transmits the deceleration command 43a to the speed control device. The car is decelerated, and if this distance becomes zero, a stop command 43b is output to stop the elevator car. Then, when the elevator car stops, for example, a stop signal 40a generated when a brake (not shown) of the hoisting machine is actuated is input to the distance signal generators 21 to 23, and an OR element (symbol OR in FIG. 3 is indicated. Via RS) and D flip-flops (shown by symbols FF1 to FF9, FF11 to FF19 in FIG. 3) through clear terminals (shown by symbols CLR ₁ to CLR ₉ and CLR _{11 to} CLR ₁₉ in FIG. 3). (Shown)
Input a high level signal to to restore the initial state.

In the course of this series of operations, especially when the car call button operation is wrong at the time of setting the target distance, the car call button 4 or 5 is operated to operate the logical sum element (the OR symbol in FIG. 3). RS flip-flop and D
High on clear terminals CLR _{1 to} CLR ₉ and CLR _{11 to} CLR ₁₉ of flip-flops (only FF1 to FF9 and FF11 to FF19 are shown in FIG. 3)
The circuit is configured so that a level signal can be input to restore the initial state and reset again.

In this way, in this device, the desired distance to be moved by the elevator car can be set extremely simply as appropriate, and the elevator car can be automatically moved by the set distance by the well-known elevator speed control device. Driving can be done very quickly.

Next, other proposed examples will be described with reference to FIGS. 4 and 5 taking the case of an elevator for the 11th floor as an example. FIG. 4 is a circuit diagram of the distance signal generator shown in FIG. 1 and FIG. In the figure, 1 to 11 are car call buttons for each floor of the 1st to 11th floors, 1a to 11a are normally-open contacts of the car call buttons 1 to 11, and 12, 13 and 14 are the same as in FIG. Maintenance service switch, run button for ascent and descent, 15 for display, 10
0 is a binary coded decimal signal corresponding to the numerical value of the target moving distance (mm) of the elevator car in response to the operation of the car call buttons 1 to 10, that is, a signal 101a (101a _{1 to} 101a corresponding to the numerical value of the ones place).
a ₄ consists of), the signal 102a (102a ₁ which corresponds to the desired digit of 10
~ 102a ₄ ), the signal 103a corresponding to the hundreds digit
(Comprising 103a _{1 to} 103a ₄ ), a distance signal generator (a detailed configuration will be described later) that outputs a signal 104a (consisting of 104a _{1 to} 104a ₄ ) corresponding to a numerical value of 1000s, r _{1 to} r ₁₂ , R ₂₁ ~ r
₃₄ is a resistor, C _{1 to} C ₁₄ are capacitors, AND 11 to AND 30 are AND elements, AND 31 to AND 40 are AND elements with L active input terminals,
OR1~OR6 the Motoko Kazu, binary coded decimal signal E1 corresponds to "1" when the High level signal is input, that is, the output terminal a ₁ only "1", the other (output terminal b _1, c ₁ , D ₁ ) outputs an output signal of “0”, and in the case of a low level signal input, an encoder that outputs a signal of “0” to all output terminals a ₁ , b ₁ , c ₁ , d ₁ , E2 is a binary coded decimal signal corresponding to "2" when a high level signal is input, that is, the output terminal
Only b ₂ is “1”, the other (output terminals a ₂ , c ₂ , d ₂ ) all output “0” signals, and in case of low level signal input, output terminals a ₂ , b ₂ , c ₂ , d ₂ is an encoder that outputs all "0" signals, E3 is a binary coded decimal signal corresponding to "3" when a High level signal is input, that is, output terminal a ₃ ,
The b ₃ emits an output signal of "1", the other (output terminal c _3, d ₃₎ is "0", in the case of Low-level signal input, output terminals _{a 3, b 3, c 3} , d 3 An encoder that outputs all "0" signals, and in the same way, E4 to E9 are binarized corresponding to "4" to "9" when High level signals are input respectively.
It is an encoder that outputs a decimal signal and outputs a signal of "0" when inputting a low level signal. Then, E10 is be input High-level signal, all together be Low level signal is input encoder that outputs a signal of "0", 100A pulse is input to the clock input terminal C ₂₁ -C ₂₄ Then, a shift register consisting of four negative edge trigger type D flip-flops FF21 to FF24, which operates at the falling edge, 100B is a clock input terminal C ₃₁
Negative edge trigger type D flip-flop FF which operates at the falling edge of pulse input to C ₃₄
Shift register consisting 31~FF34,4 pieces, 100C is a pulse to the clock input terminal C ₄₁ -C ₄₄ is input from FF41~FF44,4 or D flip-flops of the negative edge-triggered operating at its falling Shift register, 100D
When a pulse is input to the clock input terminals C _{51 to} C ₅₄ ,
The shift register is composed of four negative edge trigger type D flip-flops that operate at the falling edge.

Next, the operation will be described.

For example, if a service person who got in the elevator car wants to raise the elevator car by 321 mm,
First of all, the service person is the maintenance service switch of the car operation panel.
After operating 12 to open the gates of the AND devices AND21 to AND30, press the car call button 3 corresponding to the numeral "3" at the tens digit of the target movement distance. Then, the high level signal input to the AND element AND13 by closing the normally open contact 3a is
3, The resistor r ₂₃ , the capacitor C ₃ , and the L active input terminal are input to the AND element AND 33 with the L active input terminal, and immediately after the serviceman releases the car call button 3, the capacitor
(From open circuit normally open contacts 3a, resistor r ₂₃ and between the determined time by the time constant of the capacitor C ₃₎ only during the charge to the C ₃ is charged by L active input terminal with AND gate AND33 is High level The signal is output, this signal is input to the encoder E3 through the AND element AND23, and the output terminal of the encoder E3
_{d 3, c 3, b 3} , a 3 To generate the "0011" binary coded decimal signal corresponding to the third decimal. Then, the binary signals are input to the OR elements OR1, OR3, OR4, and OR5 and output as they are, and the signals are charged in the capacitors C ₁₁ and C ₁₂ for a while.

Here, at the moment when the car call button 3 is released, only the output line P _{3 of the} logical product element AND23 (logical product elements AND21, 22, 24 ~
The output lines P ₁ , P ₂ , P _{4 to} P ₁₀ of 30 remain in the low level state) and become the high level state, and after a short time determined by the time constant of the capacitor C ₃ and the resistor r ₂₃ , the low level state To the D flip-flop FF21 of the shift register 100A and the D flip-flop FF of the shift register 100B.
Only 31 outputs the high level signal input to the input terminals D ₂₁ and D ₃₁ at that time to the output terminals Q ₂₁ and Q ₃₁ .
(D flip-flops FF41 and FF51 output a low level signal.) Next, the serviceman places the digit "2" in the tens digit of the target movement distance.
When the car call button 2 corresponding to is pressed, the High level signal input to the AND element AND12 due to the closing of the normally open contact 2a changes to A
ND12, resistor r ₂₂ , capacitor C ₂ , and L active input terminal are input to AND device with L active input terminal AND 32, and immediately after the serviceman releases the car call button 2, the capacitor C ₂ is charged. For a short period of time (during the time determined by the time constant of the resistor r ₂₂ and the capacitor C ₂ due to the opening of the normally open contact 2a), the AND device AND32 with L active input terminal
Outputs a high-level signal, and this signal is the AND element AND2
It is input to the encoder E2 through 2 and the binarization corresponding to the decimal number ₂ at the output terminals d ₂ , c ₂ , b ₂ and a ₂ of the encoder E2
Generates the decimal signal "0010". Then, these binary signals are input to the OR elements OR1, OR3, OR4, and OR5 and output as they are, and the capacitor C ₁₂ is charged with the high level signal (the input of the OR element OR3 is in the low level state). Even after that, the high level state is maintained until the time determined by the time constant of the resistor r ₃₂ and the capacitor C ₁₂ elapses).

Here, at the moment when the car call button 2 is released, only the output line P _{2 of the} AND element AND22 (AND elements AND21, 23-30
The output lines P ₁ , P _{3 to} P _{10 of} are still in the low level state) High
After the lapse of a short time determined by the time constant of the capacitor C ₂ and the resistor r _22, it falls to the Low level state, so that the clock signal causes the shift register 10
0A, 100B, 100C, 100D all work, D flip-flop FF2
D is connected to the output terminals Q ₂₂ , Q ₃₂ , Q ₄₂ , and Q ₅₂ of 2, FF32, FF42, FF52.
Flip-flop FF21, FF31, FF41, FF51 of the output terminal Q _21,
The binary coded decimal signal “0011” corresponding to the decimal number 3 output to Q ₃₁ , Q ₄₁ , and Q ₅₁ is generated, and the output terminals Q ₂₁ , Q of the D flip-flops FF21, FF31, FF41, and FF51.
_A binary coded decimal signal “0010” corresponding to a decimal number 2 is generated at ₃₁ , Q ₄₁ and Q ₅₁ .

Next, when the service person presses the car call button 1 corresponding to the digit “1” of the 1st digit of the target movement distance, the high level signal input to the AND element AND11 due to the closing of the normally open contact 1a causes AND11 , The resistor r ₂₁ , the capacitor C ₁ , and the L active input terminal, and then input to the AND element AND 31 with the L active input terminal, and immediately after the serviceman releases the car call button 1, the capacitor C ₁ is charged. (resistor r ₂₁ and during the time determined by the time constant of the capacitor C ₁ by an open circuit of normally open contacts 1a) by L active input terminal with aND gate AND31-charged during slight and outputs a High-level signal, the The signal is input to the encoder E1 through the AND element AND21, and the output terminal d ₁ , c ₁ , b ₁ , a ₁ of the encoder E1 generates a binary coded decimal signal “0001” corresponding to the decimal number 1. Then, these binary signals are input to the OR elements OR1, OR3, OR4, and OR5, respectively, and output as they are, and the capacitor C ₁₁ is high.
Level signal is charged (input of OR element OR1 is L
Even if the ow level is reached, the high level is maintained until the time determined by the time constant of the resistor r ₃₁ and the capacitor C ₁₁ elapses).

Here, at the moment when the car call button 1 is released, only the output line P _{1 of the} AND element AND21 (the output lines P _{2 to} P ₁₀ of the AND elements AND22 to 30 remain in the low level state) is in the high level state. Then, after a short time determined by the time constant of the capacitor C ₁ and the resistor r _21, it falls to the Low level state,
The clock signal is the shift register 100A, 100B, 100C, 1
By inputting to 00D, D flip-flop FF23,
Output terminals Q ₂₃ , Q ₃₃ , Q ₄₃ , and Q ₅₃ of FF33, FF43, and FF53 are output terminals Q ₂₂ and Q of D flip-flops FF22, FF32, FF42, and FF52.
Generates a binary coded signal of "0011" corresponding to the numeral "3" output to ₃₂ , Q ₄₂ and Q _52, and outputs the D flip-flop.
FF22, FF32, FF42, the output terminal Q ₂₂ of _{FF52, Q 32, Q 42,} Q 52 D flip-flop FF21 to, FF31, FF41, FF51 output terminal Q of
A binary coded signal of "0010" corresponding to the numeral "2" output to ₂₁ , Q ₃₁ , Q ₄₁ , and Q ₅₁ is generated, and the output terminals Q of the D flip-flops FF21, FF31, FF41, FF51 are generated. It is possible to set a predetermined target moving distance by generating a binary coded signal of "0001" corresponding to the numeral "1" to ₂₁ , Q ₃₁ , Q ₄₁ , and Q _51. 100
The output signal of is input to the display decoders 31 to 33 or the control encoder 30 shown in FIG. 2 to display the distance in the elevator car in the same manner as in the above case, and the speed control of the elevator car is also performed. I do.

Then, if the operation of the car call button is mistaken during the setting of the series of target movement distances, the car call button 11 is operated to pass through the logical sum element OR6 through the closed circuit of the normally open contact 11a. D flip-flops FF21-FF24, FF31-
FF34, FF41 to FF44 and FF51 to FF54 clear terminals CLR _{21 to} CL
H for R ₂₄ , CLR _{31 to} CLR ₃₄ , CLR _{41 to} CLR ₄₄ and CLR _{51 to} CLR ₅₄
It is configured so that an igh level signal can be input to restore the initial state and reset again. When the elevator controller stops moving the elevator car and stops the elevator car, the stop signal 40a causes the D flip-flop FF through the logical sum element OR6 as described above.
21 to FF24, FF31 to FF34, FF41 to FF44, FF51 to FF54 clear terminals CLR _{21 to} CLR ₂₄ , CLR _{31 to} CLR ₃₄ , CLR _{41 to} CLR ₄₄ , CLR
_A high level signal is input to _{51 to} CLR ₅₄ , and the state returns to the initial state.

Here, the elevator car call button is not only provided independently on each floor, but even if it is configured like a numeric keyboard, it is extremely easy to configure the circuit to set the distance similarly. Therefore, detailed description of the circuit configuration is omitted.

[Problems to be solved by the device]

By the way, with such a device, it is certainly possible to automatically move the elevator car by an arbitrary preset distance, but how long the elevator car has moved since it started moving, or how much later it moved. If this happens, no one will know if the target position will be reached, and after the elevator car has started moving, it may be inconvenient if there is a need to stop it before the planned position.

The present invention has been made in view of the above points, and an object of the present invention is to provide an elevator display control device that can flexibly respond to the situation of the place even after the elevator car starts to move.

[Means for Solving the Problems]

The present invention provides (1) a signal generator that outputs a position signal each time an elevator car passes a floor position, a car position detection device that outputs a floor position signal of the elevator car, and a movement distance signal of the elevator car. A signal selection device that is provided with an arithmetic unit for outputting, selects a travel distance signal as an input signal to the display device after the maintenance service operation starts, and selects a floor position signal when the signal generator outputs a position signal. (2) Setting means for setting a target moving distance is provided in the elevator car, a distance signal generating device for outputting a target moving distance signal based on the setting means, and an arithmetic device for outputting a moving distance signal of the elevator car. The target travel distance signal is selected as an input signal to the display device when the maintenance service operation is stopped, and the travel distance signal is selected after the maintenance service operation is started. (3) Setting means for setting a target moving distance is provided in the elevator car, and a distance signal generating device for outputting a target moving distance signal based on the setting means and an elevator car are floors. Maintenance service operation, equipped with a signal generator that outputs a position signal each time it passes a position, a car position detection device that outputs a floor position signal of an elevator car, and an arithmetic device that outputs a travel distance signal of an elevator car Traveling distance signal,
Elevator display control equipped with a signal selection device that selects the floor position signal when the maintenance service driving signal generator outputs a position signal, and the target movement distance signal when the maintenance service operation is stopped It is a device.

[Action]

According to the present invention, the elevator car can be freely moved by any desired distance.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking as an example the case where the invention is applied to the elevator for the fifth floor shown in FIGS. 1 to 3.

FIG. 6 is an overall configuration diagram of a display control device according to the present invention,
FIG. 7 is a circuit diagram showing an example of a circuit per unit bit of the signal selection device in FIG. 6, and the same reference numerals as those in FIGS. When an elevator car (not shown) reaches each floor position, a signal generator that issues a position signal 50a for maintaining a low level for a predetermined time, 51 receives the position signal 50a and corresponds to the floor position of the elevator car 10 Binary coded signal for each digit of the base digit (1's place signals 51a _{1 to} 51a ₇ , 10's place signals 51b _{1 to} 51b
₇ . 7-segment display elements 15a and 15b of the display device 15, respectively
Corresponding to each one. Hereinafter, a floor position decoder for outputting a floor position signal), 52 is a binary coded signal (one of 1) of each decimal digit corresponding to the moving distance signal 42a issued by the counter 42 shown in FIG. Signals 52a _{1 to} 52a ₇ , 10's signals 51b _{1 to} 51b ₇ , 100's signals 52c _{1 to} 52c _7. Each of the 7-segment display elements 15a, 15b, 15c of the display device 15 This is a car position decoder that outputs a moving distance signal). The target moving distance decoder 31 through 33 also 2 evolution Dear decimal number corresponding to the target distance each code signal 31a ₁ ~31a ₇ described _{above, 32a 1 ~32a 7, 33a 1} ~33a 7
(1's signal is 31a ₁ to 31a ₇ , 10's signal is 32a ₁ to 32a
_{The 7th} and 100th signals are 33a ₁ to 33a ₇ . Hereinafter, the target moving distance signal will be output). 200 The floor position signal 51a ₁ to 5
1a ₇ , 51b _{1 to} 51b ₇ and movement distance signals 52a _{1 to} 52a ₇ , 52b _{1 to} 52b ₇ ,
52c _{1 to} 52c ₇ and target movement distance signal 31a _{1 to} 31a ₇ , 32a _{1 to} 32a ₇ ,
33a _{1 to} 33a ₇ are selected and displayed to the display device 15 by the respective display signals 200a _{1 to} 200a ₇ , 200b _{1 to} 200b ₇ , 200c _{1 to} 200c ₇ (the ones signal is 200a ₁ to 200a ₇ , The tens signal is 200b ₁ to 200b ₇ ,
The 100's signal is a signal selection device that outputs 200c ₁ to 200c ₇ ). Further, AND60 to AND66 in FIG. 7 are AND elements, OR
60-OR62 is a logical sum element, NOT60-NOT62 is a logical negation element,
201 is an operation signal that becomes a high level signal state when the elevator car starts moving, and changes to a low level signal state when stopped, 12a is H when the maintenance service switch 12 is turned on
MVi is a multi-vibrator M, which is a maintenance service signal that becomes a igh level signal state and a low level signal state when turned off.
A clock pulse signal generated by V, which has exactly the same circuit configuration as the circuit surrounded by the broken line, although not shown, is present by the number of the display elements 15a, 15b, 15c of the display device 15.

Next, the operation of this device will be described below with reference to the drawings.

First, if the maintenance service switch 12 is not turned on, the maintenance service signal 12a remains in the low level signal state, so the gate of the AND element AND65 is closed, and the gate of the AND element AND66 is closed through the NOT element NOT62. Since it is open, normal floor signals 51a _{1 to} 51a ₇ , 51b _{1 are} sent to the display device 15.
˜51b ₇ through AND elements and OR elements (only floor signal 51a ₁ is shown in FIG. 7. Floor signal 51a ₁ is AND element AN
Entered through D66 and OR element (OR62) and the floor number present in the elevator car is displayed regardless of whether it is running or stopped.

On the other hand, when the service person who gets in the elevator car turns on the maintenance service switch 12 on the car operation panel, the maintenance service signal 12a changes to a high-level signal state, so the gate of the AND element AND66 is closed through the NOT element NOT62. floor signal 51a ₁ ~51a ₇ via the aND gate AND66 Te,
The display of 51b _{1 to} 51b ₇ (only the floor signal 51a ₁ is shown in FIG. 7) is prohibited, and the AND device AND6 is connected to the display device 15.
The output signal from 5 is input through the OR element OR62.

Therefore, first, if the elevator car is stopped, the driving signal
Since 201 is at a low level and position signal 50a is at a high level, the gates of AND element AND60 (through NOT element NOT60) and AND element AND62 are open, and AND element A
Since the gates of ND61 and AND63 (through NOT element NOT61) are closed, the target moving distance signals 31a _{1 to} 31a ₇ , 32a _{1 to} 32a
₇ , 33a _{1 to} 33a ₇ are logical sum elements, logical product elements, logical sum elements,
Through a logical product element and a logical sum element (only the target moving distance signal 31a ₁ is shown in FIG. 7. The target moving distance signal 31a ₁ is a logical sum element OR60, a logical product element AND62, a logical sum element OR61, a logical product element AND65 and a logical Input to the display device 15 (through the sum element OR62). Therefore, the target moving distance information is displayed on the display device 15 according to the operation of the car call buttons 1 to 5.

Next, when the service person presses the ascending operation button 13 or the ascending operation button 14 and the elevator car starts moving at a low speed, the operation signal 201 changes to a high-level signal state, and therefore the logical product element through the NOT element NOT62. The gate of AND60 is closed and the target moving distance signal 31a _{1 to} 31a ₇ , 32a _{1 to} 32a ₇ , 33a _{1 to} 33
Instead of prohibiting the display of a ₇ (only target movement distance signal 31a ₁ is shown in FIG. 7), the display device 15 is provided with a logical product element, a logical sum element, a logical product element, a logical sum element, a logical product element, and a logical product element. Moving distance signal 52a _{1 to} 52a ₇ , 52b _{1 to} 52b ₇ , 52c ₁ through the sum element
~ 52c ₇ is input (in FIG. 7, only moving distance signal 52a ₁ , AND element AND61, AND62, AND65, OR element OR60, OR61, OR62 are shown) to display moving distance information after moving the elevator car. To do so.

Then, when the elevator car reaches the floor position, a position signal for 50a is to change the signal state of a Low level, the moving distance signal 52a ₁ ~52a ₇ gate is closed AND gate AND62,
52b _{1 to} 52b ₇ , 52c _{1 to} 52c ₇ (moving distance signal 52a _{1 in} FIG. 7)
Negative element NOT61 instead of prohibiting the display (only shown)
Open the gate of AND element AND63 through the display device 1
Logical product element to 5, Motoko Kazu, AND gate, floor position signal 51a ₁ ~51a ₇ through OR _{gate, 51b 1 ~51b 7, 51c 1} ~
Input 51c ₇ (floor position signal 51a _{1 in} FIG. 7, AND element
AND64, AND65, only OR elements OR61, OR62 are shown), and floor position information is displayed. The display method at this time is such that blinking is performed by opening and closing the gate of the logical product element AND64 based on the pulse signal MVa so that it can be clearly distinguished from the moving distance information of the elevator car.

[Effect of device]

By displaying multiple pieces of information on a single display device in this way, the target moving distance can be easily and appropriately set according to the number and types of car call buttons in the elevator car. Not only can it be moved automatically by the required distance as it is, but also at a place you want to stop halfway, such as a floor level or other places, other than the preset distance, while watching the display on the display device, It can be stopped simply by releasing the hand from the ascending operation button 13 or the descending operation button 14. Therefore, even after the elevator car has started to move, it is possible for the serviceman to easily stop the elevator car before the target position, etc., depending on the situation of the place, by looking at the contents displayed on the display device. Become.

In the above description, the display device 3 using the 7-segment element is used.
The case of combination is described as an example, but a display device such as a dot display may be used, and the present invention is not limited to the embodiment.

Also, an example in which the moving distance of the elevator car is detected by counting the pulses generated by the pulse generator has been described.
For example, a known tachometer generator may be attached to the shaft of the hoisting machine and the speed signal may be integrated to calculate the moving distance of the elevator car to obtain the moving distance.

[Brief description of drawings]

1 and 4 are front views showing an example of an elevator car operation panel and other examples, FIG. 2 is a functional block diagram showing an example of the entire configuration of an elevator control device, and FIG.
FIG. 5 is an internal circuit diagram of the distance signal generating device in FIG. 5, FIG. 5 is an internal circuit diagram of the distance signal generating device showing another example, FIG. 6 is an overall configuration diagram of the display control device according to the present invention, and FIG. 7 is a circuit diagram showing an example per unit bit of the signal selection device in FIG. 6. FIG. X …… Car operation panel 12 …… Maintenance service operation switch 13 …… Up operation button 14 …… Down operation button 1-11 …… Car call button 15 …… Display device 21-23,100 …… Distance signal generator 41 …… Pulse generator 43 …… Subtraction device 43a, 43b …… Control command 200 …… Signal selector

Claims (7)

[Scope of utility model registration request] 1. A maintenance service operation switch, an ascending operation button, a descending operation button, and a display device are provided on an operation panel of an elevator car, and the maintenance service operation switch and the ascending operation button or the descending operation button are provided. In an elevator performing maintenance service operation by operating, a signal generator that outputs a position signal each time the elevator car passes a floor position, and a car position detection device that outputs a floor position signal of the elevator car And a computing device that outputs a travel distance signal of the elevator car are provided, and the travel distance signal is selected as an input signal to the display device after the maintenance service operation is started, and the signal generator is configured to operate at the position. Elevator display control device comprising a signal selection device for selecting the floor position signal when a signal is output . 2. A maintenance service operation switch, an ascending operation button, a descending operation button, and a display device are provided on the operation panel of the elevator car, and the maintenance service operation switch and the ascending operation button or the descending operation button are provided. In an elevator that performs a maintenance service operation by operating, a setting means for setting a target moving distance is provided in the elevator car, and a distance signal generator that outputs a target moving distance signal based on the setting means, and the elevator. And a calculation device for outputting a car movement distance signal, selecting the target movement distance signal as an input signal to the display device when the maintenance service operation is stopped, and the movement distance after the maintenance service operation is started. A display control device for an elevator, comprising a signal selection device for selecting a signal. 3. A maintenance service operation switch, an ascending operation button, a descending operation button, and a display device are provided on the operation panel of the elevator car, and the maintenance service operation switch and the ascending operation button or the descending operation button are provided. In an elevator that performs a maintenance service operation by operating, a setting means for setting a target moving distance is provided in the elevator car, and a distance signal generator that outputs a target moving distance signal based on the setting means, and the elevator. A signal generator that outputs a position signal each time a car passes a floor position, a car position detection device that outputs a floor position signal of the elevator car, and a computing device that outputs a movement distance signal of the elevator car. The travel distance signal during the maintenance service driving, and the position signal during the maintenance service driving by the signal generator. A display control device for an elevator, comprising a signal selection device for selecting the floor position signal when output and the target travel distance signal as an input signal to the display device when the maintenance service operation is stopped. 4. The setting means according to claim 2 or 3 is a means for distinguishing the car call buttons for each digit of the target distance value and for setting according to the number of times the car call buttons are operated. The display control device for an elevator according to claim 2 or 3. 5. The setting means according to claim 2 or 3 is a means for setting a target distance corresponding to a floor number of a car call button. Elevator display controller. 6. The elevator according to claim 3, wherein the signal selection device according to claim 3 is a device for intermittently inputting the floor position signal to the display device for blinking display. Display controller. 7. The elevator display control device according to claim 2, wherein the setting of the target moving distance is canceled by operating a car call button other than the car call button used for the setting means.