JP2002020049A - Remote monitoring system for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitoring system for an elevator that allows data communication for remote monitoring using a personal handy-phone system(PHS) network. SOLUTION: The remote monitoring system for an elevator, which comprises a monitor device 3 for monitoring an elevator as a target of monitoring, and a remote monitor center 8 installed separately from the monitor device to remotely monitor the elevator according to information from the monitor device via a telephone line, is provided with an adapter 4 connected to the monitor device 3 to convert information from the monitor device into a digital signal type transmittable via a PHS communication network and transmit it in a pseudo-voice mode when establishing communication, a PHS terminal 5 connected to the adapter, and a base station 6 connected to the remote monitor center 8 via an analog telephone line so as to communicate with the PHS terminal via the PHS network.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator remote monitoring system for monitoring / maintaining an elevator from a remote place.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram showing a configuration of a conventional elevator remote monitoring system. In FIG. 5, reference numeral 1 denotes an elevator car, 2 denotes an elevator control device for controlling the elevator, and 3 denotes an elevator monitoring device connected to the elevator control device 2, which is provided together with the elevator control device 2 in a machine room. 8 is
The remote monitoring center is connected to the elevator monitoring device 3 via the telephone line 13 and remotely monitors the elevator based on information from the elevator monitoring device 3.

In the conventional elevator remote monitoring system, a remote monitoring center 8 is provided as an object to be monitored at a distance from the elevator, and is connected to the elevator monitoring device 3 connected to the elevator control device 2 and the remote monitoring center. In general, a method of transmitting the monitoring status by communication using an analog signal using the telephone line 13 is common to the method described in FIG.

[0004]

However, in the conventional elevator remote monitoring system, the telephone line 13 has to be laid to the elevator machine room in the building, so that the construction cost becomes a large burden. In addition, the maintenance cost of the telephone line 13 also accounts for a large proportion of the basic fee, and reduction is required.

As a solution to these problems, a PHS (Personal Handy phone), which has a low maintenance cost and no wiring work, is required.
System: Simple mobile phone) A method using a terminal as a communication means has been devised. However, in a remote monitoring system corresponding to a telephone line, in order to perform remote monitoring using PHS data communication, a control signal of the telephone line is used. A means for converting the PHS into a PHS control signal and a means for converting a PHS data signal into a telephone line control signal are newly required. Also, P
According to the protocol of the HS standard data communication mode, communication in which data and voice of the elevator monitoring device 3 are mixed cannot be performed.

The present invention has been made in view of the above points, and has as its object to provide an elevator remote monitoring system capable of enabling data communication for remote monitoring using a PHS network. Things.

[0007]

A remote monitoring system for an elevator according to the present invention is provided with a monitoring device for monitoring an elevator to be monitored, and a monitoring device provided separately from the monitoring device and monitoring via a telephone line. A remote monitoring system for an elevator, comprising: a remote monitoring center for remotely monitoring an elevator based on information from the device; and a PHS connected to the monitoring device and transmitting information from the monitoring device.
An adapter for converting to a digital signal format transmitted on a communication network and transmitting as a deemed voice mode during communication,
A PHS terminal connected to the adapter, and a base station connected to the remote monitoring center via an analog telephone line and communicating with the PHS terminal via a PHS network. is there.

The adapter sends an incoming signal to the monitoring device when calling from the remote monitoring center and converts a digital signal from the remote monitoring center via the PHS network and a PHS terminal into an analog signal. The communication with the monitoring device is performed.

[0009]

FIG. 1 is a block diagram showing a configuration of an elevator remote monitoring system according to an embodiment of the present invention. 1, the same parts as those of the conventional example shown in FIG. 5 are denoted by the same reference numerals, 1 is an elevator car, 2 is an elevator control device, 3 is an elevator monitoring device, and 8 is a remote monitoring device.

[0010] Further, as a new code, 4 is connected to the elevator monitoring device 3, converts information from the monitoring device 3 into a digital signal format transmitted through the PHS communication network, and transmits it as a deemed voice mode during communication. 5 is a PHS terminal connected to the adapter 4,
Is a base station which is connected to the remote monitoring center 8 via the public network 7 of the analog line and communicates with the PHS terminal 5 via the PHS network. The adapter 4 is connected to the elevator monitoring device by the same protocol as the telephone line. 3 and P
The HS terminal 5 is obtained by modifying an internal program of a public PHS that is generally commercially available, and uses an adapter 4 with a standard data communication port (PIAFS interface).
Connected to

That is, in the configuration shown in FIG. 1, the adapter 4 according to the present invention and the PH
The addition of the S terminal 5 enables remote monitoring using PHS wireless communication. And adapter 4
Indicates an analog data signal (DTMF tone, PS
A digital signal format (ADPCM: ADPCM (Adaptive Differentia) transmitted by the PHS network is used to convert the K signal, the FSK signal) and the sound from the intercom in the elevator.
l Pulse Code Modulation) and communicates with the existing analog line via the PHS network by setting the digital signal converted at the time of communication to the PHS data port in the deemed voice mode instead of the data communication mode. It is possible to do.

When a call is made from the remote monitoring center 8, that is, when polling is performed, the remote monitoring center device 8 uses the P assigned to the elevator monitoring device 3.
Call with the HS telephone number. At this time, if the incoming call is detected in the voice or deemed voice mode due to the program change of the PHS terminal 5, the incoming call is made to the data communication port side if the adapter 4 is connected. West,
Polling communication is also possible.

FIG. 2 is a block diagram showing the internal configuration of the adapter 4. As shown in FIG. 2, the adapter 4
An analog line interface 9 connected to a telephone line to the elevator monitoring device 3 and having an interface function equivalent to that of a general public line switchboard, and a CPU 10 having a main control function of the entire adapter such as outgoing / incoming control and abnormality monitoring.
And an ADPCM codec 11, which has a function of mutually converting an analog signal and a 32 Kbps digital signal, and is widely used in a PHS or a digital multiplexing device.
PIAF with communication function with data communication port of S terminal
It has an S interface 12.

Next, regarding the operation according to the above configuration, a flowchart shown in FIG. 3 showing an alerting operation based on the elevator monitoring device 3 when an elevator abnormality occurs, and FIG. 4 showing a polling operation from the remote monitoring center 8 are shown in FIG. This will be described with reference to a flowchart. First, when the elevator breaks down and the user is locked in the elevator car 1 or when the user presses the intercom button provided on the operation panel in the car, the elevator control device 2 and the elevator monitoring device 3 To the remote monitoring center 8, the elevator monitoring device 3
Performs a calling operation to the adapter 4 (step S
301).

The adapter 4 is connected to the elevator monitor 3
The telephone number dial string based on the PB signal received from
After changing to a digital signal, a command for instructing transmission in the deemed voice mode is added to the PHS terminal 5 and transmitted (step S302). The program of the PHS terminal 5 has been changed so that even if the input signal is from the data communication port of the adapter 4, the program is transmitted not in the data communication but in the deemed voice mode according to the instruction from the adapter 4.
The PHS terminal 5 transmits the received dial string as a deemed voice mode to the public PHS base station 6 installed outside the building (step S303).

The communication in the deemed voice mode can be converted into an analog signal in the public network 7 and connected to an analog telephone line, and arrives at the remote monitoring center 8 (step S304). When the remote monitoring center 8 responds, it enters the communication state (step S305). After the start of communication, the elevator monitoring device 3 sends data such as a management number and details of an abnormality using a PB signal and a modem signal (step S306).

The adapter 4 converts the received PB signal and modem signal into ADPCM digital signals (step S307). The digital signal converted by the adapter 4 passes through the PHS terminal 5 and the base station 6 and passes through the public network 7
Is transmitted in the deemed voice mode (step S30).
8). Since the mode is the deemed voice mode, in the public network 7,
The digital signal is converted into an analog signal again by the ADPCM method, and the PB signal and the PSK modem signal reach the remote monitoring center 8 (step S309).

Further, even when the user transmits voice from the interphone, the adapter 4 outputs the PB signal,
As in the case of the PSK modem signal, the signal is digitized by the ADPCM method and transmitted in the deemed voice mode via the PHS terminal 5 so that the signal is returned to an analog signal in the public network and can be communicated with the remote monitoring center 8.

Further, when a call from the remote center apparatus 8 side, that is, polling is performed, a call is transmitted from the telephone line of the public network to the PHS terminal (step S401).
Then, an incoming signal is sent from the base station 6 to the PHS terminal 5 in a voice or deemed voice mode (step S40).
2). The PHS terminal 5 checks whether or not the adapter 4 is connected to the data communication port even if the call is received in the voice mode or the deemed voice mode, and if so, notifies the data communication port side of the incoming call. Perform (Step S
403).

The adapter 4 receives the incoming signal from the PHS terminal 5 and sends the incoming signal via the analog line to the elevator monitoring device 3 (step S404). The elevator monitoring device 3 that has received the incoming signal returns a response signal (step S405). Data such as authentication information and information and voice from the operator are transmitted from the remote monitoring center 8 via the public network 7 (step S40).
6). After that, it is converted into an ADPCM digital signal in the public network 7 and reaches the adapter 4 via the PHS terminal 5 (step S407). The signal is converted into an analog signal in the adapter 4, and the signal reaches the elevator monitoring device 3 (step S408).

As described above, when the communication is being performed at both the time of alerting and the time of polling, all signals between the elevator monitoring device 3 and the remote monitoring center 8 are AD-converted in the adapter 4.
Performing analog / digital conversion by the PCM method enables bidirectional communication.

[0022]

As described above, according to the present invention, even if a communication protocol in which data and voice are mixed like an elevator is used, a communication system using a conventional analog telephone line can be used. , The adapter of the present invention and P
By simply adding an HS terminal, the communication system can be easily changed to a PHS communication system, and the telephone line laying cost can be reduced, and the basic charge can be reduced by the PHS industrial charge plan.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an elevator remote monitoring system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing an internal configuration of the adapter 4 of FIG.

FIG. 3 is a flowchart showing an alarm operation according to the present invention.

FIG. 4 is a flowchart showing a polling operation in the present invention.

FIG. 5 is a block diagram showing a configuration of an elevator remote monitoring system according to a conventional example.

[Explanation of symbols]

1 elevator car, 2 elevator control device, 3
Elevator monitoring device, 4 adapters, 5 PHS
Terminal, 6 base station, 7 public network, 8 remote monitoring center, 9 analog line interface course, 10 CPU,
11 ADPCM codec, 12 PIAFS interface, 13 telephone line.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04Q 9/00 301 H04Q 9/00 301B 311 311H 311T 341 341A F-term (Reference) 2F076 BA14 BE18 3F303 BA01 EA01 EA03 FA07 FA12 FA14 5C087 AA02 BB12 BB18 BB34 BB64 BB65 BB74 DD03 DD08 DD18 EE14 GG03 GG04 5K048 BA47 DC01 DC07 EB12 HA02 HA04 5K101 KK13 LL01 LL12 MM06 MM07 UU19

Claims (2)

[Claims] 1. A monitoring device for monitoring an elevator as an object to be monitored, and a remote monitoring center provided at a distance from the monitoring device and for remotely monitoring the elevator based on information from the monitoring device via a telephone line. A remote monitoring system for an elevator, comprising:
An adapter for converting to a digital signal format transmitted in the S communication network and transmitting as a deemed voice mode during communication, a PHS terminal connected to the adapter, and connected to the remote monitoring center via an analog telephone line, A remote monitoring system for an elevator, comprising: a base station for communicating with the PHS terminal via a PHS network. 2. The remote monitoring system for an elevator according to claim 1, wherein the adapter sends an incoming signal to the monitoring device when calling from the remote monitoring center and sends the incoming signal to the remote monitoring device via the PHS network and a PHS terminal. A remote monitoring system for an elevator, wherein a digital signal from a monitoring center is converted into an analog signal to communicate with the monitoring device.