KR101197824B1 - Apparatus for transmitting/receiving an audio signal and data between an elevator and a remote control center - Google Patents

Abstract

The present invention relates to a voice signal and a data transmission / reception device between an elevator and a remote management center. The present invention relates to state data on the mechanical operation state of an elevator detected by a state sensor and an internal situation of an elevator photographed by a CCTV camera. A communication device unit which transmits the video data and the audio signal from the interphone in the elevator by using the interphone line of the elevator while receiving data and audio signals from the outside of the elevator; Receive the corresponding processing by receiving the status data, video data and audio signal transmitted from the communication unit, and transmit the status data and video data to the outside by using the general network, and receive data (control command) from the outside A central management unit which performs a corresponding process and simultaneously transfers the communication unit; And a remote management center that receives and analyzes the state data and the image data transmitted from the central management unit, and transmits corresponding data (control commands) to the central management unit.
According to the present invention, the additional installation of the dedicated line by transmitting and receiving voice signals during emergency call of the elevator and data between the elevator and the remote management center through the existing interphone line and the general network of the elevator, not the dedicated line, and It is possible to prevent the cost caused by the installation of piping, wiring according to.

Description

Apparatus for transmitting / receiving an audio signal and data between an elevator and a remote control center}

The present invention relates to a voice signal and a data transmission / reception device between an elevator and a remote management center. In particular, the voice signal and the data between the elevator and the remote management center during an emergency call of the elevator and the existing interphone line of the elevator instead of a dedicated line. The present invention relates to a voice signal and data transmission / reception device between an elevator that transmits / receives through a general network and a remote management center.

Currently, the elevator not only transports people and goods, but also monitors the mechanical operation status of the elevator, the situation inside the elevator, and informs the building of various information in preparation for various accidents. Furthermore, convenient functions such as checking the state of the elevator at home and calling the elevator in advance before going out are being added.

Therefore, the existing elevator had to install a dedicated line for each device supporting such various functions and transmit data. However, as the dedicated lines increase, new or additional installation of piping and wiring is inevitable, and there is a problem in that separate costs are generated.

The present invention was created in view of the above, by transmitting / receiving voice signals during an emergency call of the elevator and data between the elevator and the remote management center through the existing interphone line and the general network of the elevator instead of a dedicated line. It is an object of the present invention to provide an audio signal and data transmission / reception device between an elevator and a remote control center that can prevent the cost of the additional installation of the dedicated line and the corresponding piping and wiring facilities.

In order to achieve the above object, a voice signal and a data transmission / reception device between an elevator and a remote management center according to the present invention,

Installed in a certain part of the elevator, the state data about the mechanical operation state of the elevator detected by the state sensor installed in the elevator, the image data about the internal situation of the elevator photographed by the CCTV camera installed in the elevator, and in the elevator A communication device unit which transmits a voice signal from an installed interphone using an interphone line of an interphone facility of an elevator while receiving data and a voice signal from an outside of the elevator;

It is installed in the management room of the building in which the elevator is installed, and receives the state data, the image data and the audio signal transmitted from the communication device unit and performs corresponding processing, and simultaneously transmits the state data and the image data to the outside using a general network. A central management unit which receives data (control command) from the outside and performs corresponding processing and transfers the same to the communication device unit; And

It is characterized in that it comprises a remote management center for receiving and analyzing the state data and video data transmitted from the central management unit, and transmits the corresponding data (control command) to the central management unit.

Here, the communication device unit,

Electrically connected with the state sensor and CCTV camera, the state data on the mechanical operating state of the elevator detected by the state sensor and transmitted by combining the image data of the internal situation of the elevator taken by the CCTV camera A data combination unit;

A first modem unit for receiving data transmitted by the data combination unit, modulating the data in a form suitable for data communication, and receiving data transmitted from the outside and demodulating the original data form; And

A first voice combining / separating unit for combining the data passed through the first modem unit with the voice signal from the intercom in the elevator and transmitting the intercom line using the interphone line, and separating data and voice signals from outside received through the interphone line Contains wealth.

In this case, an Ethernet switch chip may be used as the data combination unit.

The first modem unit may include a modulation unit for allocating and modulating Ethernet data to be transmitted to a specific frequency, a demodulator for receiving data transmitted from the remote management center and transmitted through the central management unit and demodulating the original data into original data. And a relay unit for boosting and transmitting the signal transmitted from the modulator, and stepping down the signal to be received by the demodulator and transmitting the signal to the demodulator.

Here, the modulation unit Ethernet transmission unit for transmitting the Ethernet data to be transmitted; A modulator for receiving the Ethernet data transmitted from the Ethernet transmitter and assigning the Ethernet data to a specific frequency; A digital-to-analog (D / A) converter for converting Ethernet data (digital signals) assigned to specific frequencies by the modulator into analog signals; A transmission filter for passing only a signal having a preset frequency among the analog signals converted by the D / A converter; And a power amplifier for amplifying the transmission output of the signal passed by the transmission filter.

The demodulator may further include a reception filter which removes a noise component from a signal received through the relay unit; A program gain compensator for amplifying the magnitude of the signal by multiplying the signal having a small magnitude through the reception filter to a preset gain value; An analog-to-digital (A / D) converter for converting a signal (analog signal) amplified by the program gain compensator into a digital signal; A demodulator for restoring the data allocated for each frequency of the digital signal converted by the A / D converter to original data; And an Ethernet receiver for transmitting data demodulated by the demodulator to an Ethernet unit.

As described above, a telephone line communication (TLC) modem or a very high data rate digital subscriber line (VDSL) modem may be used as the first modem unit.

In addition, a transformer may be used as the relay unit.

In addition, the first voice combining / separating unit is configured to filter only a voice band by a low pass filter and transmit a signal having a frequency of the remaining band.

In addition, the central management unit,

Receives status data, video data and audio signals transmitted from the communication device unit to separate data and audio signals, and transmits the separated data to the remote management center, while data transmitted from the remote management center (control command A second voice combining / separating unit for combining the voice signal from the management office interphone installed in the management room and transmitting the voice signal to the communication device unit; And

A second modem for demodulating and transmitting the data (modulated data) transmitted from the communication device unit through the second voice combining / separating unit in its original form, and receiving, modulating and transmitting the data transmitted from the remote management center. Contains wealth.

According to the present invention, the additional installation of the dedicated line by transmitting and receiving voice signals during emergency call of the elevator and data between the elevator and the remote management center through the existing interphone line and the general network of the elevator, not the dedicated line, and It is possible to prevent the cost caused by the installation of piping, wiring according to.

1 is a view schematically showing the overall configuration of a voice signal and a data transmission / reception device between an elevator and a remote management center according to the present invention.
Figure 2 is a view showing the internal configuration of the modem unit of the voice signal and data transmission / reception device between the elevator and the remote management center according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view schematically showing the overall configuration of a voice signal and data transmission / reception apparatus between an elevator and a remote management center according to the present invention.

Referring to FIG. 1, a voice signal and data transmission / reception apparatus between an elevator and a remote management center according to the present invention includes a communication device unit 110, a central management unit 120, and a remote management center 130.

The communication device 110 is installed in a predetermined portion of the elevator, by the state data on the mechanical operating state of the elevator detected by the state detector 92 installed in the elevator, by the CCTV camera 91 installed in the elevator Video data of the internal condition of the elevator photographed, and an audio signal from the interphone 115 installed in the elevator (for example, an audio signal when a passenger inside the elevator notifies the situation by using the interphone 115 in case of an emergency). ) Is transmitted using the intercom line of the intercom facility of the elevator (intercom line here does not necessarily mean the interphone line, but also includes other types of communication lines that are already installed), while the outside of the elevator (here And a data and voice signal from a central management unit to be described later.

The central management unit 120 is installed in the management room of the building in which the elevator is installed, and receives the state data, the image data and the audio signal transmitted from the communication device unit 110 and performs corresponding processing, and at the same time, the state data and the image. The data is transmitted to the outside using a general network (e.g., a high speed network, Ethernet, etc.) to the outside (hereafter referred to as a remote management center), receives data (control commands) from the outside, and performs corresponding processing. Transfer to the communication unit 110.

The remote management center 130 receives, analyzes and processes the state data and the image data transmitted from the central management unit 120, and transmits the corresponding data (control command) to the central management unit 120. Here, the data communication between the central management unit 120 and the remote management center 130 is a telephone line communication (Telephone Line Communication) method, power line communication method or VDSL (Very high-data rate Digital Subscriber Line) Orthogonal frequency division multiplexing (OFDM), which has been used in communication, uses a general network (eg, a high speed network) instead of a power line to exchange data at high speed.

On the other hand, the communication device 110 is electrically connected to the state sensor 92 and the CCTV camera 91, and the state data on the mechanical operating state of the elevator detected by the state sensor 92 and A data combination unit 111 for transmitting a combination of image data of an internal situation of the elevator photographed by the CCTV camera 91; A first modem unit 112 which receives the data transmitted by the data combination unit 111 and modulates it into a form suitable for data communication while receiving data transmitted from the outside and demodulating the original data into a form of original data; And combines the data passed through the first modem unit 112 with the voice signal from the interphone 115 in the elevator and transmits the data using the interphone line, while receiving data and voice signals from outside received through the interphone line. It includes a first negative coupling / separating unit 113 to separate.

In this case, an Ethernet switch chip may be used as the data combination unit 111. That is, an Ethernet switch chip having 5 ports or 8 ports supporting 10 / 100base-T that can be connected to a CCTV camera 91 or an external device may be used.

As illustrated in FIG. 2, the first modem unit 112 includes a modulation unit 210 for allocating and modulating Ethernet data to be transmitted to a specific frequency, and is transmitted from the remote management center 130 to the center. The demodulator 220 receives the data transmitted through the management unit 120 and demodulates the original data, and boosts and transmits the signal transmitted from the modulator 210. It includes a relay unit 230 for stepping down the signal to be received by the 220 to deliver to the demodulator 220.

Here, the modulator 210 includes: an Ethernet transmitter 211 for transmitting Ethernet data to be transmitted (that is, state data and image data combined by the data combiner 111); A modulator 212 for receiving the Ethernet data transmitted from the Ethernet transmitter 211 and assigning the Ethernet data to a specific frequency; A digital-to-analog (D / A) converter 213 for converting Ethernet data (digital signal) assigned to a specific frequency by the modulator 212 into an analog signal; A transmission filter 214 for passing only a signal having a preset frequency among analog signals converted by the D / A converter 213; And a power amplifier 215 that amplifies the transmission output of the signal passed by the transmission filter 214.

In addition, the demodulator 220 includes: a reception filter 221 for removing a noise component from a signal received through the relay unit 230; A program gain compensator 222 for amplifying the magnitude of the signal by multiplying a small signal having passed through the reception filter 221 to a preset gain value; An analog-to-digital (A / D) converter 223 for converting the signal (analog signal) amplified by the program gain compensator 222 into a digital signal; A demodulator 224 for restoring the data allocated for each frequency of the digital signal converted by the A / D converter 223 to the original data; And an Ethernet receiver 225 for transmitting the data demodulated by the demodulator 224 to the Ethernet unit.

As described above, the first modem unit 112 may be a telephone line communication (TLC) modem or a very high data rate digital subscriber line (VDSL) modem. The TLC modem can be configured, for example, with Intellon's INT5500 and INT1200. When configured in this way, data transmission is possible at speeds up to 85Mbps, and communication is possible up to several kM instead of short distances like the unshielded twisted pair wire (UTP) method of Ethernet communication. In addition, since the link between the TLC modems is made in a short time, it has a strong characteristic against noise introduced from the outside. It also has built-in security features that prevent eavesdropping and interfering with external devices.

In addition, the relay unit 230 is an element for transmitting a signal output through the modulator 210 to the interphone line and a signal received from the interphone line to the demodulator 220. 230, a transformer may be used.

In addition, the first voice combiner / separator 113 is configured to filter only a voice band by a low pass filter and transmit a signal having a frequency of the remaining band.

In addition, the central management unit 120 receives the state data, the image data and the audio signal transmitted from the communication device unit 110, separates the data and the audio signal, and separates the separated data from the remote management center 130. While transmitting to the other side, the second voice coupling to combine the data (control command) transmitted from the remote management center 130 and the voice signal from the management room interphone 125 installed in the management room to transmit to the communication device unit 110 / Separator 121; And demodulated and transmitted data (modulated data) transmitted from the communication device unit 110 and passed through the second voice combiner / separator 121 to the original form, and transmitted from the remote management center 130. And a second modem unit 122 for receiving, modulating, and transmitting data. Here, the internal configuration of the second modem unit 122 is the same as the internal configuration of the first modem unit 112, and thus a detailed description of the internal configuration of the second modem unit 122 will be omitted.

Then, the operation of the voice signal and the data transmission / reception device between the elevator and the remote management center according to the present invention having the above configuration will be briefly described.

Image data on the internal condition of the elevator photographed by the CCTV camera 91 installed inside the elevator, and state data on the mechanical operating state of the elevator detected by the state sensor 92 installed on a predetermined portion of the elevator When transmitted from each device, the data combination unit 111 of the communication device unit 110 transmits the image data and the state data in combination. Then, the first modem unit 112 receives the data transmitted by the data combination unit 111 and modulates the data in a form suitable for data communication. That is, the modulator 212 of the first modem unit 112 receives the Ethernet data (that is, the image data and the state data combined by the data combiner 111) transmitted from the Ethernet transmitter 211 to a specific frequency. D / A converter 213 converts the Ethernet data (digital signal) assigned to a specific frequency by modulator 212 into an analog signal, and transmit filter 214 is converted by D / A converter 213. Only a signal having a predetermined frequency is passed among the converted analog signals, and the power amplifier 215 amplifies and transmits a transmission output of the signal passed by the transmission filter 214. Then, the relay unit 230 boosts and transmits the signal transmitted from the modulator 210 (that is, transmitted from the power amplifier 215). Then, the first voice combining / separating unit 113 transmits the modulated data transmitted through the relay unit 230 and the voice signal from the interphone 115 in the elevator (for example, the passenger in the elevator in case of emergency interphone). A voice signal indicating the situation is combined by using a 115 and transmitted using an interphone line.

Then, the second audio combiner / separator 121 of the central management unit 120 receives the state data, the image data, and the audio signal transmitted from the communication device unit 110 to separate the data and the audio signal, The separated data is transmitted to the remote management center 130, and the second modem unit 122 demodulates the data (modulated data) that has passed through the second voice combining / separating unit 121 into its original form, and then controls the remote management center. Transmit to 130. Then, the remote management center 130 receives and analyzes and processes the state data and the image data transmitted from the second modem unit 122 of the central management unit 120, and the corresponding data (control command) to the central management unit ( 120).

On the other hand, when data (control command) is transmitted from the remote management center 130, the second modem unit 122 of the central management unit 120 receives and modulates it, the second voice combining / separating unit 121 is In response to the modulated data and the voice signal from the management office interphone 125 (for example, the passenger's notification of the occurrence of an emergency situation to the intercom 115 of the elevator, the voice signal to which the manager responds to the management office interphone 125). ) Is combined and transmitted to the communication device unit 110 using the interphone line. Then, the first voice combining / separating unit 113 of the communication unit 110 receives and separates the data (modulated data) and the voice signal transmitted from the central management unit 120, and separates the separated data (modulated Data) to the first modem unit 112. Then, the first modem unit 112 receives the modulated data and demodulates it into the original data form. That is, when data is transmitted through the first voice combiner / separator 113, the relay unit 230 decompresses the signal and transmits the signal to the demodulator 220 of the first modem unit 112. Then, the reception filter 221 of the demodulator 220 removes noise components from the signal received through the relay unit 230, and the program gain compensator 222 passes through the reception filter 221. A / D converter 223 converts the signal (analog signal) amplified by the program gain compensator 222 into a digital signal and a demodulator 224 restores the data allocated for each frequency of the digital signal converted by the A / D converter 223 to the original data. Finally, the Ethernet receiver 225 transmits the data demodulated by the demodulator 224 to the Ethernet unit.

In the above-described series of processes, the first modem unit 112, as described above, uses a telephone line communication (TLC) modem or a VDSL (Very High-data Rate Digital Subscriber Line) modem. It can transmit and communicate up to several kM instead of short distances, like the unshielded twisted pair wire (UTP) method of Ethernet communication. In addition, since the link between the TLC modems is made in a short time, it has a strong characteristic against noise introduced from the outside. It also has built-in security features that prevent eavesdropping and interfering with external devices.

As described above, the voice signal and data transmission / reception device between the elevator and the remote management center according to the present invention, the voice signal when the emergency call of the elevator and the data between the elevator and the remote management center of the elevator, not the dedicated line By transmitting / receiving through interphone line and general network of LAN, it is possible to prevent the cost incurred by additional installation of dedicated line and consequent piping and wiring.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Accordingly, the true scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of the same should be construed as being included in the scope of the present invention.

110 Communication unit 111 Data combination unit
112 The first modem section 113 The first voice combining / separating section
120 ... Central Management Unit 121 ... Second Voice Combination / Separator
122 ... Second Modem Unit 130 ... Remote Management Center
211 ... Ethernet Transmitter 212 ... Modulator
213 ... D / A converter 214 ... Transmission filter
215 ... Power amplifier 221 ... Receive filter
222 ... program gain compensation 223 ... A / D converter
224 Demodulator 225 Ethernet Receiver
230 ... Relay

Claims (7)

Installed in a certain part of the elevator, the state data about the mechanical operation state of the elevator detected by the state sensor installed in the elevator, the image data about the internal situation of the elevator photographed by the CCTV camera installed in the elevator, and in the elevator A communication device unit for transmitting voice signals from the installed interphones using interphone lines of the interphone facilities of the elevator and receiving data and voice signals from the elevator central management unit;
It is installed in the management room of the building in which the elevator is installed, and receives the state data, the image data and the audio signal transmitted from the communication device unit and performs corresponding processing, and simultaneously transfers the state data and the image data to the remote management center using the network. A central management unit which transmits and receives a control command from the remote management center to perform a corresponding process and simultaneously transmit the control command to the communication device unit; And
A remote management center for receiving, analyzing and processing status data and video data transmitted from the central management unit, and transmitting a corresponding control command to the central management unit;
The communication device unit,
Electrically connected with the state sensor and CCTV camera, the state data on the mechanical operating state of the elevator detected by the state sensor and transmitted by combining the image data of the internal situation of the elevator taken by the CCTV camera A data combination unit;
A first modem unit for receiving the data transmitted by the data combining unit and modulating the data transmitted in the form suitable for data communication while receiving the data transmitted from the central management unit and demodulating the original data form; And
A first voice combiner for combining the data passed through the first modem unit with the voice signal from the intercom in the elevator and transmitting the intercom line using the interphone line, while separating the data and the voice signal from the central management unit received through the intercom line. Including a separator,
The central management unit,
Receives status data, video data and audio signals transmitted from the communication device unit to separate data and audio signals, and transmits the separated data to the remote management center, while a control command and a management room transmitted from the remote management center. A second voice combining / separating unit which combines the voice signal from the management office interphone installed in and transmitted to the communication device unit; And
And a second modem unit for demodulating and transmitting the modulated data transmitted from the communication device unit and passing through the second voice combining / separating unit in its original form while receiving and modulating and transmitting the data transmitted from the remote management center. ,
The data combination unit of the communication unit voice signal and data between the elevator and the remote management center, characterized in that an Ethernet switch chip having a 5-port or 8-port that supports 10 / 100base-T that can be connected to a CCTV camera or an external device is used. Send / receive device. delete The method of claim 1,
The first modem unit,
A modulator for allocating and modulating Ethernet data to be transmitted to a specific frequency;
A demodulation unit for receiving data transmitted from the remote management center and passing through the central management unit and demodulating the original data; And
An elevator and a remote management center comprising a relay unit for boosting and transmitting the signal transmitted from the modulator, and for stepping down the signal to be received by the demodulator and transmitting the signal to the demodulator. Voice signal and data transmission / reception device between. The method of claim 3,
The modulator,
An Ethernet transmitter for transmitting Ethernet data to be transmitted;
A modulator for receiving a digital signal transmitted from the Ethernet transmitter and assigning the digital signal to a specific frequency;
A digital-to-analog (D / A) converter for converting a digital signal assigned to a specific frequency by the modulator into an analog signal;
A transmission filter for passing only a signal having a preset frequency among the analog signals converted by the D / A converter; And
And a power amplifier for amplifying the transmission output of the signal passed by the transmission filter. The method of claim 3,
The demodulation unit,
A reception filter for removing a noise component from the signal received through the relay;
A program gain compensator for amplifying the magnitude of the signal by multiplying the signal having a small magnitude through the reception filter to a preset gain value;
An analog-to-digital (A / D) converter for converting the analog signal amplified by the program gain compensator into a digital signal;
A demodulator for restoring the data allocated for each frequency of the digital signal converted by the A / D converter to original data; And
And an Ethernet receiver for transmitting the demodulated data by the demodulator to the Ethernet unit. The method of claim 3,
The first modem unit is a telephone line communication (TLC) modem or a VDSL (Very High-data Rate Digital Subscriber Line) modem, characterized in that the voice signal and data transmission / reception device between the elevator and the remote management center.
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