KR100563568B1 - A complex pagephone system - Google Patents

Abstract

The present invention relates to a composite page phone system in which wired / wireless is integrated, and a mixed page phone device in which wired page phone function and wireless page phone function are combined in each existing wired page phone system is installed at an appropriate location. The purpose is to eliminate the need for a wireless pager system and a repeater. The system of the present invention configured for this purpose is a page phone system in which a plurality of wired page phone devices are connected through a page common line and a party common line, and are connected to a common line to provide a wired and wireless page phone function. A wired page phone module connected to a common line to provide a wired page phone function; A wireless transmit / receive module for wirelessly communicating with a portable wireless handset to provide a wireless page phone function; And a process module for interfacing the wired page phone module with the wireless page phone module and decoding the received DTMF code to perform a corresponding function.

Pagephone, Wired / Wireless, Composite, Wireless Handset, DTMF Encoder / Decoder

Description

Complex pagephone system

1 is a block diagram showing the configuration of a conventional composite page phone system.

Figure 2 is a block diagram showing the configuration of a composite page phone system according to the present invention.

3 is a block diagram showing the configuration of the composite page phone device shown in FIG. 2;

4 is a flowchart illustrating an operation procedure of the composite page phone device shown in FIG. 2.

[Description of Symbols for Main Parts of Drawing]

102. Page Common Line 104. Party Common Line

110-1-110-3. Wired pagephone device 200-1, 200-2. Composite pagephone device

250. Wireless Handset 210. Wired Pagephone Module

211.Line Coupler 212.Page Amplifier

213. Speaker 214. Party amplifier

215. Handset 220. Process Module

CPU 222.Memory

223. I / O section 224. DTMF encoder / decoder

225. Analog buffer 230. Wireless transmit / receive module

231. Local Oscillator 232. Phase Synchronous Loop (PLL)

233. Modulator 234. Analog Buffer

235.RF Booster 236. Antenna

The present invention relates to a page phone system, and more particularly, to a wired / wireless system in which a mixed page phone device in which a wired page phone function and a wireless page phone function are combined in appropriate locations is installed in an existing wired page phone system. A composite page phone system.

In general, a page phone is a kind of industrial operation command broadcasting equipment used by drivers in power generation facilities, ships, factories, construction sites, etc., which is a wired page phone system, a wireless page phone system, and a combination of wired and wireless. There is a page phone system. Such a page phone system is a device that makes a call using a handset or a portable device between a caller and a callee after calling through a loudspeaker to people working in a factory or an office.

1 is a block diagram showing the configuration of a conventional composite page phone system.

As shown in FIG. 1, a conventional compound page phone system includes a plurality of wired page phones 110-1 connected through a page common line 102 for paging (command) and a party common line 104 for a driver-to-driver call. It consists of a wired page phone system 10 and a wireless page phone system 20 composed of ˜110-N). The wireless page phone system 20 is connected to the common lines 102 and 104 to connect the page-phone interface 120, a wireless control device 130, the antenna switcher 140, a wireless repeater for connecting a wired-wireless page phone system. 150 and a wireless page phone 160 of a wireless handset type.

Referring to FIG. 1, the wired page phone system 10 communicates with each other using the common lines 102 and 104 as signal intermediaries, and the wireless page phone system 20 communicates with each other wirelessly. The wired page phone system 10 and the wireless page phone system 20 are connected through the interface device 120.

However, the conventional composite page phone system having the above-described structure is a structure in which two wired and wireless page systems that operate independently of each other are connected through an interface device, thereby adding an expensive dedicated wireless page phone system to the wired page phone system. Structure. That is, the conventional wireless page phone system 20 has a structure in which an expensive wireless control device 130 mediates between each wireless page phone terminal 160 through the antenna switcher 140, and is fixed due to the limitation of radio wave reach. Since the wireless repeater 150 must be installed and operated at every distance, there is a problem in that the system is complicated and economically burdensome.

The present invention was devised to solve the above-mentioned problems in the related art, and it is expensive to install a mixed page phone device in which wired page phone function and wireless page phone function are mixed in appropriate locations in an existing wired page phone system. The purpose of the present invention is to provide a low cost composite page phone system that does not require a wireless page phone system and a wireless repeater.

Another object of the present invention is to be economical and not limited to the range by installing one composite page phone when multiple wired page phones are installed within a wireless call distance.

It is as follows of the present invention configured to achieve the above object. That is, the composite page phone system according to the present invention is a page phone system in which a plurality of wired page phone devices are connected through a page common line and a party common line, and are connected to a common line to provide a wired and wireless page phone function. The page phone device includes: a wired page phone module connected to a common line to provide a wired page phone function; A wireless transmit / receive module for wirelessly communicating with a portable wireless handset to provide a wireless page phone function; And a process module for interfacing the wired page phone module with the wireless page phone module and decoding the received DTMF code to perform a corresponding function.

In the above-described configuration, the wired page phone module is configured to select a line to be used from a plurality of party lines and page lines according to a matching transformer and a control signal connected to the common line in order to transmit and receive a voice or signal with another page phone device. A line coupler made of an electronic relay; A page amplifier which is a unidirectional audio amplifier for amplifying and outputting a broadcasting voice or a warning sound received through a page line to a speaker; And a party amplifier, which is a two-way speech amplifier that amplifies the voice signal received from the selected party line through a line coupler and transmits the received voice signal from the handset's handset to amplify the transmitted voice signal from the handset's handset to the party line through the line coupler. It can be made with.

The process module may include an input / output unit configured to transmit an input / output signal for controlling the wired page phone module and the wireless transmission / reception module; A DTMF encoder / decoder which processes assembly (coding) and decomposition (decoding) of multitone (DTMF) signals used in communication codes between devices for broadcasting and call between the wired page phone device and the composite page phone device; An analog buffer which is a preamplifier for adjusting the level of different signals on a line and for transmitting and receiving only the necessary signals; And executing a predetermined software to perform a corresponding function according to data received through the input port of the input / output unit, controlling the corresponding elements through the output port of the input / output unit, and storing the data in a memory or reading and processing the stored data. It may be provided with a processing unit (CPU).

In addition, the present invention wireless transmission module is a local oscillator for oscillating a carrier frequency for wireless communication; A phase locked loop for stabilizing a carrier frequency oscillated in a local oscillator; An analog buffer, which is a preamplifier for adjusting the level of analog signals on a line and transmitting and receiving only necessary signals; A modulator demodulating the transmitted voice signal transmitted through the analog buffer into a carrier signal and outputting the RF signal to the RF booster, and demodulating the high frequency signal received from the RF booster and outputting the received voice signal to the analog buffer; And an RF booster that amplifies the modulated high frequency (RF) transmission signal and outputs the air to the air through the antenna, or amplifies the high frequency (RF) received signal received through the antenna and transmits the received RF signal to the demodulator.

Hereinafter, a composite page phone system according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing the configuration of a compound page phone system according to the present invention, and FIG. 3 is a block diagram showing the structure of the compound page phone device shown in FIG.

As shown in FIG. 2, the composite page phone system of the present invention includes a wired page phone device 110-1 to 110-3 and a composite page phone device connected through a page common line 102 and a party common line 104. 200-1 and 200-2 are mixed and provided. In the exemplary embodiment of the present invention, the page line 102, which is a common line for paging, is two lines, and the party line 104, which is a common line that enables communication between drivers in both directions, is five lines.

Referring to FIG. 2, wired page phone devices 110-1 to 110-3 are the same as existing wired page phone devices, and amplify the paging signal received through the page common line 102 in the page amplifier. Through the party amplifier, amplify the transmitted voice signal transmitted through the handset in the call mode, output it to the party common line, and amplify the other party's voice signal (received voice signal) received through the party common line. It is then forwarded to the handset of the handset so that they can talk to each other.

The composite page phone apparatus 200-1 and 200-2 according to the present invention adds a wireless page phone function to an existing wired page phone function, and amplifies and broadcasts a paging voice through a speaker attached to the main body. In addition to being able to make a call with a wired handset, the portable wireless handset 250 can communicate with the main body wirelessly to page or talk with the other party. The composite page phone apparatus 200-1, 200-2 includes a wired page phone module 210, a process module 220, and a wireless transmission / reception module 230 as shown in FIG. 3.

Referring to FIG. 3, the wired page phone module 210 includes a line coupler 211, a page amplifier 212, a speaker 213, a party amplifier 214, and a handset 215, as in a conventional wired page phone device. Handles paging and calls using wired handset 215. That is, the wired page phone module 210 is similar in function and configuration to the existing wired page phone, and its main function is to expand and broadcast the broadcast sound input from the common line of the page phone system through the page amplifier 212, and the handset. If you want to broadcast using the (215) is to be able to talk to each other through the party amplifier (214).

The process module 220 includes a CPU 221, a memory 222, an input / output unit 223, a DTMF encoder / decoder 224, an analog buffer 225, and decodes DTMF signals according to a corresponding command to wired page phone modules. The controller 210 controls and interfaces the wireless transmit / receive module 230. In other words, when a DTMF signal is input from the common line of the page phone system, the process module 220 interprets the signal and determines whether to output the signal as an audible broadcast sound or a voice for a call. At this time, the channel is switched to the corresponding channel according to the call channel code included with the DTMF signal to build a call path. In addition, when a DTMF signal is input from the wireless transmission / reception module 230, information such as a channel to be used as a call or a broadcast is DTMF coded and transmitted to a common line of the page phone system.

The wireless transmit / receive module 230 includes a local oscillator (OSC) 231, a phase locked loop (PLL: 232), a modulator 233, an analog buffer 234, and an RF booster 235. Communicate wirelessly with handset 250. That is, when the radio transceiver module 230 receives the radio signal from the mobile radio handset 250, demodulates the radio signal to extract the DTMF signal, and transmits the demodulated DTMF signal to the process module 220. Accordingly, the process module 220 interprets the input signal and determines whether to output the audible broadcast sound or the voice for the call, and switches to the corresponding channel according to the call channel code included with the DTMF signal to connect the call line. Build it.

Referring again to FIG. 3, the line coupler 211 may include a plurality of party lines according to control signals of a matching transformer and a CPU connected to a common line for a page phone system in order to transmit and receive a voice or a signal with another page phone device in the page phone system. And electronic relays for selecting a line to use between 102 and page lines 104.

The page amplifier 212 is a unidirectional audio amplifier which amplifies and outputs a broadcasting voice, a warning sound, and a signal received through the page line 102 to the speaker 213, and the speaker 215 amplifies and broadcasts a paging voice or a warning sound.

The party amplifier 214 amplifies the voice signal received from the selected party line 104 via the line coupler 211 and transmits it to the handset of the handset 215, and transmits the transmitted voice signal received from the handset of the handset 215. It is a bidirectional audio amplifier that amplifies and outputs to the party line 104 through the line coupler 211.

As described below, the CPU 221 executes predetermined software to perform a corresponding function according to data received through the input port of the input / output unit 223 and to control the corresponding elements through the output port of the input / output unit 223. The data is stored in the memory 222 or the stored data is read and processed.

The input / output unit 223 transmits an input / output signal for controlling the wired page phone module 210 and the wireless transmit / receive module 230, and the DTMF encoder / decoder 224 is a wired page phone device 110-1 to 110-3. Process the assembly (encoding) and decomposition (decoding) of the multi-tone (DTMF) signal used in the communication code between the devices so as to make a broadcast or a call between the < RTI ID = 0.0 > The analog buffer 225 of the process module is a preamplifier for adjusting the level of different signals on the line and for transmitting and receiving only the necessary signals.

The local oscillator 231 oscillates a carrier frequency (carrier frequency) for wireless communication, and the phase locked loop (PLL) 232 stabilizes the carrier frequency oscillated by the local oscillator (OSC) 231.

The analog buffer 234 of the wireless transmit / receive module is a preamplifier for adjusting the level of analog signals on a line and transmitting and receiving only necessary signals.

The modulator 233 modulates a transmission voice signal transmitted through the analog buffer 234 into a carrier signal, outputs the RF signal to the RF booster 235, and demodulates a high frequency (RF) signal received from the RF booster 235. The received voice signal is output to the analog buffer 234.

The RF booster 235 amplifies the modulated radio frequency (RF) transmission signal and outputs it to the air through the antenna 236, and amplifies and demodulates the amplification of the radio frequency (RF) reception signal received through the antenna 236. Transfer to group 233.

Next, the operation of the composite page phone of the present invention configured as described above will be described in detail with reference to FIG.

4 is a flowchart illustrating an operation procedure of the composite page phone apparatus according to the present invention.

As shown in FIG. 4, the CPU 231 monitors the input port of the input / output unit 223 to determine whether the hook-off of the wired handset or the call button of the wireless handset 250 is input (carrier detected). 401).

If a hook-off or carrier is detected, a dial tone is provided to request dialing, whereby the user enters a function button (402, 403). In the embodiment of the present invention, the functions include a paging function, a party function, and a warning occurrence, and the button inputs (operation sequence) accordingly are shown in Table 1 below.

function How to operate Paging * + 1 or 2 party # + Any number from 1 to 5 Beep sound 0 + 1 or 2

When the user inputs a function button, the dial tone is blocked, the received DTMF signal is decoded by the DTMF decoder 224, and the digit data is stored (404 to 406). Subsequently, when the channel selection button is input, the DTMF signal is decoded by the DTMF decoder 224 again and the corresponding digit data is stored (407 to 409). Typically, a DTMF signal is an analog tone of two frequencies with different combinations depending on the button, and the decoded data is 4-bit digital data.

Subsequently, the CPU 221 controls the DTMF encoder 224 to encode the received digit again and transmit it through the common line, and interprets the digit data (command) to process the corresponding function (410).

For example, if the paging function (i.e., * + 1 or 2), the electronic relay of the line coupler 211 is controlled to connect to the page line 102 of the corresponding page channel 1 or 2 and then page (411). 413).

If the command function is interpreted and the party function (that is, # + number), the electronic relay of the line coupler 211 is controlled to connect to the party line 104 of the corresponding party channel 1 to 5 to enable mutual communication. (414-416).

If the command is interpreted to generate an alarm (that is, 0 + 1 or 2), the line coupler 211 is controlled to generate an alarm sound to the page line 102 of the corresponding page channel (418 and 419). Here, the generation time of the alarm sound can be set using a dip switch (not shown) attached to the main body.

After the paging is completed or the call is completed, the hook-on is released and the connected line is released and returned to the original state (default state) (417).

On the other hand, when a DTMF signal is received from the common line in a non-hook-off state, the DTMF decoder 224 decodes the digit data and transfers the digit data to the CPU 221. The CPU 221 transmits the digit data to an internal register or an external memory. Temporarily stored in 222 (420 ~ 422).

Subsequently, if the paging function is analyzed by analyzing the received digit data, after controlling the electronic relay of the line coupler 211, the paging audio signal received from the corresponding page common line 102 is amplified by the page amplifier 212 and then the speaker 213. A) via broadcast (411 ~ 413).

If the analysis result is a party function, the electronic relay of the line coupler 211 is controlled to allow a call through the corresponding party common line (414 to 416).

If an alarm is generated by interpreting the command, the electronic relay of the line coupler 211 is controlled to amplify the alarm sound received through the corresponding page channel to the page amplifier 212 and then broadcast through the speaker 213 (418, 419).

Although the foregoing configuration has been described with reference to a preferred embodiment of the present invention, those skilled in the art can variously modify and modify the present invention without departing from the spirit and scope of the invention as set forth in the claims below. It will be appreciated that it can be changed.

As described above, according to the present invention, the existing composite page phone system has a limitation on the communication distance, so a wireless repeater is required, and the system purchase cost and installation cost of the system are expensive as well as the maintenance cost of the system is high. By solving the problem, it is possible to provide a compound page phone system capable of wired and wireless at a relatively low cost.

That is, the present invention can be used by using a wireless handset after placing a simple composite page phone device combined with a wired and wireless page phone function in the same position as the existing wired page phone device installed in advance, so do not use a wireless repeater It can be used without any limitations on mastery distance without using.

In addition, when a plurality of wired page phone devices are installed within a wireless communication distance, only one compound page phone is installed to cover a corresponding area so that it can be economically used.

Claims (5)

In the page phone system in which a plurality of wired page phone devices are connected through a page common line and a party common line, A composite page phone device connected to the common line to provide a wired and wireless page phone function includes a plurality of party lines according to matching transformers and control signals connected to the common line to transmit and receive voice or signals with other page phone devices. A line coupler comprising an electronic relay for selecting a line to be used from a page line and a page line, a page amplifier which is a unidirectional audio amplifier for amplifying and outputting a broadcasting voice or a warning sound received through the page line, and a party line selected through the line coupler Amplified voice signal received from the handset of the handset of the handset, and amplified transmission voice signal input from the handset of the handset is a two-way audio amplifier for outputting to the party line through the line coupler consisting of a party amplifier and the common lineLandline phone module page through the results page provides wired phone functions; Local oscillator for oscillating carrier frequency for wireless communication, Phase synchronous loop for stabilizing carrier frequency oscillated in the local oscillator, Analog buffer which is a preamplifier for adjusting the level of analog signal on the line and transmitting and receiving only necessary signal, A modulator for modulating the transmitted voice signal transmitted through the analog buffer into a carrier signal and outputting the RF signal to the RF booster and demodulating the high frequency signal received from the RF booster to output the received voice signal to the analog buffer. It amplifies the transmission signal and outputs it to the air through the antenna, and amplifies the RF signal received through the antenna and transmits the RF booster to the demodulator to communicate wirelessly with a portable wireless handset. A wireless transceiver module providing a page phone function; And An input / output unit for transmitting an input / output signal for controlling the wired page phone module and the wireless transmission / reception module, and a multi-tone (DTMF) signal used in a communication code between devices for broadcasting and a call between the wired page phone device and the composite page phone device. DTMF encoder / decoder that handles assembly (decoding) and decomposition (decoding), an analog buffer which is a preamplifier for adjusting the level of different signals on the line and transmitting and receiving only necessary signals, and executing predetermined software to execute the software. Comprising a function according to the data received through the input port, and controls the corresponding devices through the output port of the input and output unit, and consists of a central processing unit (CPU) for storing data in the memory or reading and processing the stored data Interface the wired page phone module with the wireless page phone module, but receive the DTMF code. And a process module for decoding the card and performing a corresponding function. delete delete delete The composite page phone system of claim 1, wherein the composite page phone device is mixed with a plurality of wired page phone devices and installed at a required position, so that the composite page phone device can service a wide area without the need for a wireless repeater.

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