JPS62222986A - Position detecting annunciator for elevator - Google Patents

Abstract

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

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to an elevator position detection and display device.

(Prior Art) Fig. 5 is a block diagram of a position detection and display device for an elevator according to the prior art. With the above running pulse as input, when the elevator is going up, this pulse is added, and when the elevator is going down, the pulse is subtracted, and the system returns to the reference position (usually the bottom floor). A binary counter 12 that outputs a paired binary absolute position signal;
A PROM 21 receives the output of the binary counter 12, that is, a binary absolute position signal, and stores the corresponding floor as data, and a 7-segment display 40 displays the output of the PROM 21 as a floor. For example, if this binary absolute position signal is expressed by 16 pits so that the binary absolute position signal output from the binary counter 12 can be directly read, 16 indicators ( For example, a door zone indicator 24 is provided to indicate that the car is located in an area (door zone) where the car door can be opened and closed. ing.

This door zone indicator 21 has a door zone switch 23 and a limiting resistor 25 mounted on the car as white parts.
Between the positive power supply bus P and the negative power supply bus N derived from the power supply device 18 that supplies power during normal times, one battery that supplies power during power outages, and the 1C power supply switching circuit 20 that switches these power supplies. It is connected. This power source is connected to the door zone display 24 by a circuit not shown in the drawings.
It is also supplied to the ROM 21.7 segment display 40 and the display 22.

Therefore, even during a power outage, the 7-segment display 40
．． The position of the elevator can be confirmed by the dot display 22 and door zone display 24.

In addition, the binary absolute position signal that is the output of the binary counter 12 is connected to the C path line 14 through the bus driver 13, and is input to the control -1 amp coater (not shown), and is used as the position 11 reference for various operation controls. be done.

(Problems to be Solved by the Invention) Conventional position detection and display devices require separate displays for each of the three position displays, that is, absolute position display, floor display, and door zone display, and cannot be miniaturized. , and since the drive 1 to display 22 are used to display the absolute position, it is possible to directly read each pin 1 of the binary counter 12.
For example, when it comes to 16 bits, there are so many numbers that it becomes difficult to understand and prone to errors when converted into hexadecimal numbers, which is a common data expression method, during maintenance and inspection.

[Structure of the invention]

(Means for Solving the Problems) The present invention has a pulse generator that generates travel pulses according to a travel distance determined in advance by the travel of a car, and outputs an output from this pulse generator. A position detection and display device for an elevator that detects and displays the position of a car by counting running pulses, which includes a binary counter for counting the running pulses, a display changeover switch for changing the content of the position display, and a display changeover switch for changing the content of the position display; A micro combicoater that takes the output as an input and outputs the position display content corresponding to the switching result based on the switching result of the display changeover switch, and a display device that displays the display content of the device consisting of this microcomputer. It is characterized by the fact that it is equipped with

(Function) The elevator position detection and display device according to the present invention inputs a signal from a display changeover switch to a microcomputer (hereinafter referred to as a microcomputer), and the microcomputer changes the output of a binary counter according to the signal from the display changeover switch. It can be miniaturized because it outputs to a common display instead of signals for absolute position display, floor display, and door zone display.

Furthermore, the binary absolute position can be converted into, for example, hexadecimal numbers by a microcomputer and displayed on a °C display.

(Embodiment) FIG. 1 is a block diagram of an elevator position detection and display device according to the present invention, which includes a pulse generator that generates travel pulses according to a predetermined traveling distance of a car. This position detection and display device includes a binary counter 12 that converts the traveling pulse, a display changeover switch 17 that changes the position display contents, and a display changeover switch 17 that inputs the output of the binary counter 12 and uses the switching result of the display changeover switch 17 as input. a microcomputer 15 that outputs the position display content corresponding to the switching result based on the switching result, and this microcomputer 15
A display 16, for example, a 7-segment display, is provided to display the output.

Further, the binary absolute position output from the binary counter 12 is connected to the pass line 14 through the bus driver 13 and inputted to a control computer (not shown), where it is used as the position M\- for various operation controls.

The power supply circuit is a power supply device 1 that supplies power during normal times.
8, a battery 19 that supplies power during a power outage, and a positive power bus P and a negative power bus N that are connected to the power 'r7! It has a power supply switching circuit 20 that switches between the device 18 and the battery 19, and supplies operating power to the pulse generator 11, binary counter 12, microcomputer 15, display 16, and bus driver 13.

FIG. 2 is a block diagram showing an embodiment of the internal configuration of the microcomputer 15, which includes a microcomputer 154 and a first input buffer circuit that receives the binary absolute position signal that is the output of the binary counter 12. 26, a second input buffer circuit 27 that inputs the switching signal YJ of the display changeover switch 17, an output buffer 7 circuit 28 that outputs data to the display 16, a memory 29 that stores programs and data, and instructs operations according to the program. It includes a CPU 30 and an internal bus 31 that connects them.

The binary counter 12 tightens the running pulse generated by the pulse generator 11 when the elevator is on one arm, and subtracts it when the elevator is descending, to a predetermined position (usually the lowest 11f'). i> as a reference. This binary absolute position signal is input to the microcomputer 15 and enters the first input buffer circuit 26. Normally, the According to the first program, the CPU 30 converts the binary absolute position signal input to the first input buffer circuit 26 into a hexadecimal position signal, converts this into data corresponding to the display 16, and outputs the signal to the output buffer 7. If the display 16 is a 7-segment display, 24AFl-1 (H
indicates a hexadecimal number), the display at that time will be as shown in Fig. 3.

On the other hand, when floor display is required, the switching signal of the display changeover switch 17 is input to the second input buffer circuit 27, and the CPU 30 selects the first input buffer circuit according to the second program stored in the memory 29. The current floor is calculated by comparing the binary absolute position inputted into the memory 26 with the binary intermediate position data of each floor inputted in advance into the memory 29, and converted into data corresponding to the display 16. If the display 16 is a 7-segment display, it is output to the upper two digits of the four 7-segment displays shown in FIG.

In addition, the door zone display is also displayed in the same way as the display changeover switch 1.
7 is input to the second input buffer 1 circuit 27, and the CPU 30 converts the binary absolute position input to the C1 first input buffer circuit 26 according to the third program stored in the memory 29. The door zone is detected by comparing it with the binary door zone value for each floor that has been input into the memory 29 in advance, and is converted into data corresponding to the display 16 and output via the output buffer circuit 28, so that the display 16 has 7 segments. A display example in the case of a display device is shown in FIG. In other words, the upper two digits [30J] indicate the floor, and the fourth digit rdJ indicates that the car is in the door zone.

〔Effect of the invention〕

The elevator position detection and display device according to the present invention uses a microcomputer to display the different absolute position display, floor display, and door zone display on one display, so that the display unit can be miniaturized.

It is also used as a position reference for various operation controls.
Because the microcomputer converts the absolute position signal of the system into a display value suitable for each of the above-mentioned position indications based on the changeover switch signal and outputs it, maintenance and inspection work becomes easier and errors are eliminated.

[Brief explanation of drawings]

1(a) and 4(b) are block diagrams of an elevator position detection and display device according to the present invention, FIG. 2 is a block diagram of a microcomputer that is a component of the elevator position detection and display device, and FIGS. The figure is an explanatory diagram showing an example of the display on the display,
FIGS. 5(a) and 5(b) are block diagrams of an elevator position detection and display device according to the prior art. 11... Pulse generator, 12... Binary counter, 15... Microcomputer, 16... Display, 17...
・Choice switch. Applicant's representative Mr. Sato (a) 1st (b) Figure 1 15゛Microcomputer r
r ----------Figure 2

Claims (1)

[Claims] Elevator position detection display that has a pulse generator that generates travel pulses according to a predetermined distance traveled by the car, and that detects and displays the position of the car by counting the travel pulses output from this pulse generator. The device includes a binary counter for counting the traveling pulses, a display changeover switch for changing the content of the position display, and an output of the binary counter as input, and a response to the changeover result based on the changeover result of the display changeover switch. 1. A position detection and display device for an elevator, comprising: a microcomputer that outputs position display content in place of position display content; and a display device that displays position display content output from the microcomputer.