JPS6023271A - Device for maintaining 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] [Field of Application of the Invention] The present invention relates to an elevator maintenance device, and in particular to an elevator suitable for checking the maintenance status of an elevator from a distance.
This relates to maintenance equipment.

[Background of the invention]

Recently, the following method has been devised as an elevator maintenance device. Hereinafter, a conventional example will be explained using FIGS. 1 to 5.

FIG. 1 is a system configuration diagram of a conventional elevator maintenance device.

In FIG. 1, an elevator seat 1 and a counterweight 2 are suspended from a sheave 4 via a rope 3 in a hanging shape 9, and a brake device is connected to the shaft of the sheave 4 via a reducer. 5. An electric motor 6° speed generator 7 is attached. The electric motor 6 includes a thyristor control device 8. The direction and speed of rotation are controlled by the output of a power control device 11, which is composed of a disconnector 9 and controls the power supplied from a three-phase AC power source 10. The thyristor control device 8 is controlled by the output of a speed control circuit 13 to which the output of the speed generator 7 and the output of the microcomputer 12 are input. Control signals for the power control device 11 are derived from signals 14 from various safety devices installed in the elevator and a microcomputer 12.
The output from the safety circuit 15 to which signals from the P1 elevator are input controls the traveling direction of the P1 elevator, the brake device 5, etc. The microcomputer 12 receives car information input via the tail cord connected to the car 1, elevator-boarding area information, information from the speed generator 7, information 14 from the safety device, etc. and uses that information to control the elevator.

By the way, the power control device 11. Microcomputer 1
2. Speed control circuit 13. The elevator control device 16 composed of the safety circuit 15 includes a timer device 17 that detects when the maintenance period has expired and a data system that collects and records the operating status of each part of the elevator control device 1716.
A maintenance device main body 19 is connected to the device 18, and a modem device 20 that converts information from the data control device 18 into an audio signal is connected to the maintenance device main body 19. The modem device 2 is connected to a modem device 21 that converts audio into electrical signals via a communication path.
1 is connected to the information processing device 22 of the maintenance center.

This maintenance device main body 19. The modem devices 20, 21, the communication path, and the information processing device 22 constitute a conventional elevator maintenance device.

The main body 19 of the maintenance device is composed of a microcomputer, and as shown in FIG.
and a system bus 51 that communicates with peripheral devices, which will be described later.
ePG52 that generates the microcomputer clock
, read-only memory (R
OM) 53, Random access used for temporary storage of data ◆Memo'J (RAM) 54, System No.
I (TC (for example, HD 146818 manufactured by Hitachi) 55, which has a clock function and is directly connected to
56 has a PIA 57 that inputs and outputs digital signals from the elevator control device 16 and the MPU 50, and an A-D converter 58 that converts analog signals into digital signals and inputs them into the MPU 50. Note that an input device 23 for giving instructions to the maintenance device main body 19 is connected to the PIA 57.

Next, FIG. 3, which is a 70-chart of processing in the maintenance device main body 19, will be explained. Figure 3 shows a reset processing step 100t that initializes various registers, variables, etc. when the power is turned on, and determines whether or not to set various operating states using the keyboard, etc. Step 200 of performing an action. In step 300, the timer set in step 200 determines whether the time has come to collect the operating state of the elevator. When the time to collect data has come, the PIA 57, the A-D converter 58, etc. are used to operate the elevator. The process consists of a step 400 in which status information is loaded into the MPU 50 and processed, and a step 500 in which data is transmitted and received to the modem device 20 when data collection is completed.

FIG. 4 is a flowchart showing details of the process when data is collected in step 400 above. Step 4
00 is a position detector that operates in various operating modes in an elevator, for example, when operating from the 1st floor to the 5th floor and when operating from the 1st floor to the 2nd floor, as shown in Fig. 4. Since the speed and landing level etc. are different, the operation procedure to be carried out during maintenance is divided into each operation mode and registered in the maintenance device main body 19, so that the elevator can determine whether the deceleration starting force is ＼ or not. Determine, if deceleration has started, go to step 410, otherwise go back to step 4
05. Determine whether or not the 11th mode among the above operating modes has been operated. If the data is uncollected, step 420 is executed; if the data is a collection cylinder, step 440 is executed. Step 410. Elevator - operating mode i Step 420: Collect data for each part of i-mode. When the data collection for i-mode is completed, set the data collection flag for mode i and update the inspection mode i. Step 430: Check whether data collection for all driving modes has been completed. If the process has not been completed, step 410 is executed, and if it has been completed, the process returns to step 440.

FIG. 5 is a flowchart showing details of step 410 in FIG. As shown in FIG. 5, step 410 is a step of storing in an address register the starting address of the database in which the departure and arrival floors from which the elevator starts to move are stored, as shown in the memory map of FIG. 6. 4100, if the contents of the memory indicated by the address register are equal to the starting floor, step 4300 is executed; otherwise, step 4800 is executed; step 4;
200, step 4300 in which the content of the address register is increased by 1, of course it is determined whether the content of the address register is the same as the arrival floor, and if they are equal, step 45001 is executed; if not, step 4900 is executed, step 44
00, mode i from the current value of the address register,
ON, OFF status for mode i (ON indicates that data has already been collected, OFF indicates that data has not been collected.)
Step 4500: Calculate the address corresponding to mode i from the table 1) aja l, bring the data of that address, and if it is OFF, step 4
Step 4600 to execute step 440 (see FIG. 4) if 700 is OFF, step 4700 to turn on the address memory contents of I) ata l above corresponding to mode l, increase the contents of the address register by 2. Next, step 4800 enters the address where the departure floor is stored, step 4900 increments the contents of the address register by 1, and determines whether it is larger than the final address, and if it is thicker, the data for this driving mode is collected. If it is determined that there is no need to do so, the process returns to step 440, and if there is a mode that has not been checked yet, the process returns to step 4200 (decision step 5000).

With such a configuration, the timer device 17 operates,
When it is time to maintain the elevator, the operating status of the elevator can be monitored and the data necessary for maintenance can be obtained4.
When the fli state is reached, data is automatically collected.

The data is automatically input via a modem to the data processing device 22 of a maintenance center installed in a remote location via a public line (telephone line, etc.), and maintenance personnel use the information to determine which elevator maintenance should be carried out. It is possible to judge the location and go to the site with the necessary maintenance parts, thereby eliminating the need to return from the site to pick up the maintenance parts.

However, in this conventional method, the information sent from the elevator side to the maintenance center requires a large amount of data transmission, such as sending all the data input by the maintenance equipment, and the information sent from the elevator side to the maintenance center is large. There were drawbacks such as the inability to instruct collection.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide an elevator maintenance device that allows a remote maintenance center to obtain elevator operating status information.

[Summary of the invention]

The present invention multiplexes signals of different frequencies on a communication channel,
Focusing on the ability to send various data, the system is designed to give commands to the maintenance equipment that monitors the operating status of the elevator using signals of multiple frequencies.

[Embodiments of the invention]

Hereinafter, an embodiment of the present invention will be described using FIG. 7. What is different from the conventional example is the system bus 51 of the maintenance device main body 19.
As shown in FIG. 7, a PiA 59 is connected to connect the microcomputer and peripheral devices using parallel signals. The output of the PiA59 is the transmitter 60, 61, 62
Controls the outgoing calls, and controls the outgoing calls and stops outgoing outgoing calls. The transmission frequencies of the transmitters 60, 61, and 62 are set to be mutually prime. The outputs of the transmitters 60, 61, and 62 are combined by a mixer 63 and connected to the outside via an amplifier 64 and a connecting device 69 for connecting to a public line or the like.

On the other hand, from the information processing device 22 installed in the elevator maintenance center, a frequency multiplexed signal generated with a configuration similar to that of the above-mentioned transmitter is manually inputted from the connecting device 69 to the amplifier 65 and the filter 66. .67.68 is entered. The resonant frequency of the filter 66, 67, 68 is centered on the oscillation frequency of the oscillator 60° 61,62,
When the corresponding signal is input to the filter, it is input to the PiA 59 as a digital signal. Filter 66°67
．． The output of 68 is waveform-shaped and converted to P as a digital signal.
As input to the iA 59, information instructing elevator operation is directly given to a specific pit, or information instructing elevator operation is given in a coded manner.

With such a configuration, the information processing device 22 installed at a remote location from the elevator will, for example, turn on the oscillator assigned to operate the elevator from the first floor to the second floor. The signal is input to the PiA 59 via an amplifier 65 and a filter, for example 66. PiAs9
When a signal is input to the microcomputer, it outputs to the elevator control device to instruct the elevator to run from the 1st floor to the 21st floor. The elevator will then automatically start operating and the ACiAl
Necessary information is sent to the information processing device 22 via the modems 20 and 21.

The use of public lines, local area networks (LAN), aerial transmission, etc. as the transmission path of the present invention can be easily assumed in the embodiments of the present invention.

〔Effect of the invention〕

By superimposing and transmitting multiple frequencies on a pair of communication channels, the present invention can simultaneously transmit a large number of signals, and
Since it is possible to directly issue commands to elevators, etc., a highly responsive maintenance device can be obtained.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of a conventional elevator maintenance device, FIG. 2 is an explanatory diagram of the maintenance device in FIG. 1, and FIGS. 3, 4, and 5 are processing flowcharts of the device in FIG. 1, respectively. , FIGS. 6(a) and 6(b) are respectively explanatory diagrams of the operation of the apparatus shown in FIG. 1, and FIG. 7 is a circuit diagram of an embodiment of the elevator maintenance apparatus of the present invention. 1... Car, 16... Elevator control device, 1
9...Maintenance device body, 60, 61.62...Oscillator, 66.67.68...Filter, 22...Maintenance center dirt 3 Kokutaku 40 5th, Kasumi 6th cause ((1) O)) Invitation 7 m

Claims (1)

[Claims] 1゜Elevator-1 Consists of the elevator control device, means for collecting and recording information on the operating status of the elevator, a communication path connected to the means for recording and collecting the information, and an information processing device connected to the communication path. 1. An elevator maintenance device characterized in that a communication path transmits an elevator control signal from an information processing device using a frequency multiplexing method.