KR200436098Y1 - A Monitoring System Using DTMF Signal For Equipments of Elevator - Google Patents

Abstract

The present invention relates to a device that modulates and demodulates a DTMF signal from digital inputs, digital outputs, and communications of each system terminal and monitoring system in a monitoring control system of a lifting facility. It is a device designed for the system to monitor and control by using communication line and control line.

DTMF, signal converter, hook off, watch station, ring generator, receiver, modulation and demodulation,

Description

A monitoring system using DTMF signal for equipments of elevator

 1 is an exemplary control diagram of a preferred embodiment of a lift monitoring system using a DTMF signal of the present invention.

 2 is a schematic diagram of DTMF signal converters

 3 is a block diagram of a monitoring system and a DTMF signal converter.

 Explanation of symbols on the main parts of the drawings

 10 ... terminal DTMF signal converter 20 ... terminal

 12, 21, 32, 42 ... Input ports 13, 22, 33, 43 ... Output ports

 14, 23, 34, 44 ... Communication ports 11, 31, 41 ... CPU

 15, 35 ... ring generator 16, 36 ... ring detector

 17, 37 ... DTMF Generator 18, 38 ... DTMF Detector

 45 ... indicator

The present invention relates to data transmission and reception, that is, communication in an elevator monitoring system using a DTMF signal, and relates to an apparatus to be applied to long-distance communication using a communication line and a control wire such as UTP and CPEV.

In general, the system using communication method using RS232C, RS485, RS422, CAN, LON, etc. must use shielded wire to prevent the increase of communication error rate due to noise. Since the multi-drop transmission method is used, the terminals connected to the same network have an influence on the mutual communication speed depending on the terminal state.

That is, when one terminal is not in good condition, the entire network can be influenced by the occurrence of the communication network BUSY signal caused by the re-communication attempt due to a communication error. Is bad.

Therefore, the main object of the present invention is to enable the installation of the monitoring system of various lifting facilities at low cost. The present invention is intended to allow anyone to easily access the system by using a telephone line and an easily accessible control line which are generally constructed in an apartment or a building.

In addition, another object of the present invention is to provide a system that can communicate with almost no restriction between the distance between the terminal and the host, the terminal and the terminal, and also always the same communication without affecting the network at all depending on the state of the terminal It is to provide a communication reliable system that maintains speed.

Lifting facility monitoring system using a DTMF signal according to the present invention for achieving the above object, DTMF conversion means for converting the monitoring data generated from the lifting equipment terminal into a DTMF signal; Transfer means for transferring the DTMF signal converted by the DTMF conversion means to a counterpart call; Reconverting means for converting the DTMF signal transmitted by said transmitting means into supervisory data in a counterpart call; And monitoring means for displaying the monitoring data converted by the reconversion means.

Lifting facility monitoring system using a DTMF signal according to the present invention for achieving the above object, Lifting equipment terminal constituting each part of the elevator operating system; DTMF conversion means for converting control data generated for monitoring the elevator facility terminal into a DTMF signal by a monitoring means for monitoring the elevator facility terminal; Transfer means for transferring the DTMF signal converted by the DTMF conversion means to the elevator facility terminal to be controlled; And reconverting means for converting the DTMF signal transmitted by the transmitting means into control data so as to be used for the control of the elevator apparatus terminal.

The delivery means is a public telephone network.

The transmission means is an extension telephone network built in the building.

The delivery means is characterized in that it comprises a radio base station.

In order to achieve the above object, the present invention divides the monitoring system apparatus using DTMF into a control field for the purpose of mutual control and a monitoring field with a large monitoring purpose.

First, the operation configuration of the monitoring field will be described first.

The surveillance data generated from the surveillance field terminal 20 is transmitted to the terminal DTMF signal converter 10 through the output port 22 and the communication port 23 of the terminal 20.

In FIG. 2, the terminal DTMF signal converter 10 hooks off while the CPU 11 receives monitoring data through the input port 12 and the communication port 14, and contacts the ring signal through the ring generator 15. The call is sent to the call DTMF converter 30, and the ring is detected and hooked off through the ring detector 36 of the DTMF signal converter 30 of the other call.

The ring detector 16 of the terminal DTMF signal converter 10 detects the hook-off of the other call, and the DTMF signal from the DTMF generator 17 of the terminal DTMF signal converter 10 receives the monitoring data first received by the CPU 11. And converts the signal to the counterpart DTMF signal converter 30 through the telephone port 19.

The DTMF signal converter 30 of the other call receives the DTMF signal of the monitoring data input through the telephone port 39 from the DTMF receiver 38, and the CPU 31 converts the received DTMF signal back into the monitoring data.

The converted data is received through the input port 42 and the communication port 44 of the monitoring system 40 and displayed on the display device 45 in various ways such as a picture or a text.

The following describes a method of transmitting control data for controlling a terminal from a monitoring system.

In order to control the corresponding terminal 20 from the monitoring system 40 of FIG. 3, the corresponding control data is transmitted to the corresponding call DTMF signal converter 30 through the output 43 port and the communication port 44 of the monitoring system 40. Transmit to input 32 and communication port 34.

CPU 31 of counterpart DTMF signal converter 30 stores control data received through input port 32 and communication port 34 and calls terminal DTMF signal converter 10 through ring generator 35. do. The terminal DTMF signal converter 10 detects the ring through the ring detector 16 and hooks off.

The counterpart DTMF signal converter 30 detects the hook-off of the terminal DTMF signal converter 10, converts the control data stored in advance by the CPU 31 through the DTMF generator 37, and converts the DTMF signal into a telephone port. The terminal DTMF signal converter 10 transmits to the telephone port 19 via the terminal 39.

The terminal DTMF signal converter 10 receives a DTMF signal input through the telephone port 19 from the DTMF receiver 18 of the terminal DTMF signal converter 10, and the CPU 11 converts it into control data.

The terminal DTMF signal converter 10 transmits the converted control data to the terminal 20 through the output port 13 and the communication port 14.

The control data received through the input port 21 and the communication port 23 of the terminal 20 controls the corresponding control device, that is, the respective lifting devices.

Apparatus capable of transmitting and receiving DTMF signals, such as switchboards and public telephone networks, can be applied to the present invention. Dial-up allows calls to be made anywhere in the world, anywhere in the world, allowing any device to be monitored and controlled at low cost.

The present invention can monitor and control the lifting facilities in all areas where DTMF transmission is possible. In other words, by using the public telephone network and the telephone network built inside the building, it is possible to build a lifting facility monitoring system at a low cost by reducing the line construction cost even in an existing building. Termination is effective.

Since apartments and buildings are basically equipped with telephone line construction and wireless repeaters for mobile phones, it is possible at no extra cost, and long distance transmission (8 kilometers) is possible even when using single-door and inter-door DTMF communication.

Claims (5)

DTMF converting means for converting monitoring data generated at the elevator equipment terminal into a DTMF signal; Transfer means for transferring the DTMF signal converted by the DTMF conversion means to a counterpart call; Reconverting means for converting the DTMF signal transmitted by said transmitting means into supervisory data in a counterpart call; Lifting equipment monitoring system using a DTMF signal, characterized in that it comprises a monitoring means for displaying the monitoring data converted by the re-conversion means. A lift facility terminal constituting each part of the lift operation system; DTMF conversion means for converting control data generated for monitoring the elevator facility terminal into a DTMF signal by a monitoring means for monitoring the elevator facility terminal; Transfer means for transferring the DTMF signal converted by the DTMF conversion means to the elevator facility terminal to be controlled; Lifting facility monitoring system using a DTMF signal, characterized in that it comprises a re-conversion means for converting the DTMF signal transmitted by the transmission means into control data for use in the control of the elevator equipment terminal. The elevating facility monitoring system using a DTMF signal according to claim 1 or 2, wherein the transmission means is a public telephone network. The elevating facility monitoring system using a DTMF signal according to claim 1 or 2, wherein the transmission means is a telephone network built in a building. The elevating facility monitoring system using a DTMF signal according to claim 1 or 2, wherein said transmission means comprises a radio base station.

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