FI79212B - COMMUNICATION SYSTEM UTAN EGEN LEDNING. - Google Patents

Description

7921 2

Self-contained communication system

The invention relates to a self-wireless communication system for the transmission of voice and / or information information between communication terminals, wherein the communication terminals can be interconnected within communication systems by means of a power distribution network.

Initially defined communication systems generally refer to dialogue devices that are immediately connected to the power distribution network and the exchange of information takes place by means of frequency modulated signals via power distribution lines. Dialog devices consist of several transmitting and receiving stations, each with its own microphones and speakers. For individual functions - calling the subscriber, talking - separate keys are arranged for individual stations, which users must use as needed.

These intercoms offer users great advantages in terms of flexibility of call points, which can be connected arbitrarily without additional wiring, for example in a residential building. If there are several stations within such dialogue equipment, then the voice connections are made through different channels, which can usually be tuned optionally at the stations. In the operation of such dialogue equipment via the power distribution network, care must be taken to ensure that information signals do not pass, for example, over the area of the house power distribution network, otherwise these messages can also be heard in neighboring plots in the same power distribution network. In this connection, it is known to install so-called TF locks in the house between the main fuses and the individual fuses in order to prevent information from entering the power distribution networks of other areas over the house area.

The invention is based on the object of forming self-wireless communication systems so that the stations of the dialogue equipment are replaced by telephone exchanges in terms of both comfortable use and functional mode of operation. According to the invention, this is achieved by a combination of features 1.1-1.4.

It is to be considered essential for the invention that the communication system is implemented with a side telephone equipment to which at least one main connection line and a number of side line cables corresponding to the number of side telephones of the side telephone system are connected. In a very advantageous manner, the line connection transmission is connected to the power distribution network via a central adapter device, where each individual side connection line is divided by a corresponding fork connection into a transmission and reception channel. Furthermore, an external adapter device is provided for each side telephone, in which the side connection cables are similarly separated into a second transmission channel and a second reception channel. Here, too, speech and / or information information is transmitted on the transmission side via a frequency modulator and a channel-specific filter device together to the power distribution network.

Using the central adapter device and the external adapter devices, it is simply possible to connect extension telephones to the power supply network via known sockets in the house, so that both internal connections between individual extension telephones and external connections between the extension telephone and the main telephone line can be established.

A very advantageous embodiment of the invention is such that the outdoor adapter device is an integral part of the corresponding side telephone, so that this can be connected directly to the power distribution network via a socket connection.

According to another preferred embodiment of the invention, the features 3.1-3.3 are arranged so that, in a simple manner, the extension telephones can communicate both with one another and also with purposefully determined lines by means of selection pulse control.

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The invention will now be described with reference to an embodiment shown in the figures, in which Figure 1 shows an overall view of a telephone intercom with a central adapter and an external adapter device, while Figures 2 and 3 show other details of the central adapter device and the external adapter devices.

The telephone intercom equipment has a line connection transmission LAU to which at least one main connection cable HAL and several side connection cables NAL are connected. The number of NALs of the side connection lines corresponds to the number of NST ... of the extension telephones in the telephone extension equipment of the telephone. Further, an interrogation station AST is shown, which is also connected to the line connection transmission LAU and ensures that, in any case, even in the event of a voltage failure, central calls are received via the house connection lines HAL to the interrogation station AST. This interrogator AST is wired and connected directly to the line transmission LAU. The line connection transmission LAU can be implemented, for example, by family telephone equipment, which is connected for power distribution via the plug NST to the network connection NA of the power distribution network SVN.

In the central adapter device ZAE, the side connection cables NAL are separated into transmission and reception channels via the fork connections not shown in each case, and then passed to the network connection NA of the power distribution network SVN via the connection capacitor and the plug NST not shown.

The individual side telephones NST ... of the telephone side telephone equipment each have their own external adapter devices AAE, which similarly divide the side connection cables of the individual side telephones NST ... via the fork connections not shown into a transmission channel and a reception channel. These wires are also connected to the power distribution network SVN via a network connection NA via a switching capacitor and a plug NST, not shown.

Figure 1 shows the power distribution network SVN with only one phase (R), the other phases S and T being connected via the phase-switching capacitors PKK and provided with frequency interlocking devices FSE with respect to external call secrecy.

4

With the help of the phase switching capacitors PKK, it is possible that, despite the phase quality, the call connections are transferred via the entire SVN of the house's power distribution network.

79212

From the central adapter device ZAE according to Fig. 2, it can be seen in more detail how the side connection line NAL is separated from the first fork connection GS1 into a first transmission channel SK1 and a first reception channel EK2. In this case, the first transmission channel SK1 includes a first preamplifier VV1, the signal of which is transmitted via the first frequency modulator FM1 and the next channel individual filter device FE1 to the current distribution network SVN. In the same way, the reception signal is also transmitted via the channel individual filter device FE1 and the frequency demodulator FD2 to the power amplifier EV2, the signal of which is transmitted via the first fork connection GS1 to the two-wire side connection line NAL.

Fig. 3 shows an outdoor adapter device AAE in which the side connection line NAL is separated by a second fork connection GS2 in the same way into a second transmission channel SK2 and a second reception channel EKI. A second frequency modulator FM2 and a second frequency demodulator FD1 are distributed to the second transmission channel SK2 and the second reception channel EKI in the same manner as described above, whereby the transmission signal and the reception signal are connected together as described above by the channel-specific filtering device FE2 and transmitted to the power distribution network.

When connecting two side telephones to each other, this is achieved by lifting the handset to a fixed connection to the side telephone. In this case, the transmission signals are transmitted via the transmission channel SK ... and the frequency modulator via the channel individual filter device FE ... to the power distribution network SVN, while simultaneously the reception signal arrives the same way via the frequency demodulator FD ... to the reception channel EK ... and from there to the terminal amplifier EV ... and via the corresponding fork coupling GS ... to the side telephone NST ....

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If the call is purposefully transferred via the branch connection line NAL to the extension telephone NST ..., then a call relay R is used in a known manner, which interrupts the signal transmitted from the control tone transmitter PTS in the sleep mode by opening the switching contact r in the central adapter device ZAE. The second control tone receiver PTE 'in the outdoor adapter device AAE of the corresponding side telephone NST detects the omission of this signal and causes the paging relay R to be operated in a non-present loop state (relay S not excited). The intercom NST ... is thus connected via switching switches r to a call voltage of 65 V and thus receives a call signal. By lifting the handset from the side telephone NST ... the loop relay S is used and thus the second control tone transmitter PTS 'in the outdoor adapter device AAE is also switched off at the same time. This state is similarly detected by the first control sound receiver PTE of the central adapter device ZAE and at the same time the relay T is switched on. Thus, an incoming connection is established between the branch line NAL to the extension telephone NST ....

If you want to make an outgoing call from the extension telephone NST, then lifting the handset of the extension telephone NST ... will wake up the loop relay S, which switches off the second control audio transmitter PTS 'again with the switching contact s. This state is similarly detected by the first control tone receiver PTE, and by connecting the relay T, the number switching pulse relay NSI is preparatively connected to the first control tone receiver PTE. By rotating the selector dial on the side telephone NST ... the loop contact s is controlled so that the second control tone transmitter PTS1 is switched on in the outdoor adapter device AAE in step with the selection pulses, so that these control tone interrupts are detected by the first control tone receiver PTE in the central adapter device ZAE. If necessary, the user of the extension telephone NST ... can establish a connection path via the branch connection line NAL to another extension telephone NST ... or by dialing a known central identification number it can be connected to the main connection line.

Claims (5)

6 7921 2 1. Wireless communication systems for transmitting voice and / or information information between communication terminals, wherein the communication terminals can be interconnected within the communication systems by means of a power distribution network whose phase lines are connected to the internal voice transmission ), characterized by a combination of the following characteristics, 1.1. the communication system is implemented with telephone intercom equipment, 2.1. the intercom equipment has a line connection (LAU) to which at least one main line (HAL) can be connected, which can be connected to a number of side lines (NAL) corresponding to the number of intercoms <NST ...> in each case, 3.1. the line connection transmission (LAU) is connected to a boiler adapter device <ZAE) connected to the phase line (R, S or T), where the respective side connection lines (NAL) are separated by a first fork connection (6S1) into a transmission channel (SK1) and a demand channel (SK2); includes a preamplifier (VV1) followed by a frequency modulator (FM1), and a receiving channel (EK2) includes a power amplifier (EV2) preceded by a frequency demodulator (FD2) and a frequency modulator (FM1) and a frequency demodulator (FD2) is connected to a power distribution network (SVN) connected via channel individual sludge filter devices (FE1), and 4.1. the side telephones (NST1, NSTn) are in each case connected to an external adapter device (AAE) connected to the phase line (R, S or T), where the respective side line (NAL) is separated by a second fork connection (GS2) into a second transmission channel (SK2) and a second demand channel (EKI) , the second transmission channel (SK2) includes a second preamplifier (VV2) having a second frequency modulator (FM2) and the second reception channel (EKI) includes a second power amplifier 7 7921 2 (EV1) preceded by a second frequency demodulator <FD1> and a second frequency modulator (FM2) ) and a second frequency demodulator (FD1) is connected to a power distribution network (SVN) connected via filter devices <FE2) of other channel units. Communication system according to Claim 1, characterized in that the outdoor adapter device (AAE) is an integral part of the corresponding side telephone (NST1, NSTn). Communication system according to claim 1, characterized by a combination of features, 3.1. a first control tone transmitter (PTS) connected to the first transmission channel (SK1) provides a first output signal to a second control tone receiver (PTE ') connected to the first reception channel (EKI), 3.2. a second control audio transmitter (PTS ') connected to the second transmission channel (SK2) provides a second output signal to a first control audio receiver (PTE) connected to the second reception channel <EK2), 3.3. the first control tone transmitter (PTS) gives the first output signal only when there is no call or loop lock mode (r, t not used) and the second output signal is at the first control tone receiver (PTE), 3.4. the second control tone transmitter (PTS ') provides a second output signal only when no loop criterion is present (s not used), 3.5. when the first output signal is not present in the second control tone receiver (PTE ') or the loop criterion is not present (s, t was not used), the call state (R) can be controlled. 7921 2 β 1. Kommunikationeeyetem utan egen ledning för överföring av tai- och / eller datainformation mellan komunikationsändap-parater, varvid kommurukationsändapparater inom kommunika-tioneeyetemen kan förbindae med varandra under medutnyttjande av strömförsörjningenätet, ) and the rules applicable to the use of high frequency frequency management (FSE), the conversion of the combination to the upper reference: 1.1. communication in the field of realization Paral-lelletat ioner 1.2. parallelletationen uppviear en ledningsanslutninge-överföring (LAU), account vilken minst en huvudanslutningeledning <HAL) is not used, and can be used to provide parallel parallels (<NAL) motevarande antalet para 11 el11e 1e- f one r . . ), 1.3. The operation of the control unit (LAU) is connected to the ground control (R, S or T) with a centralized control unit (ZAE), and is connected to the ground control unit (NAL) with a single lead (NAL) with the same capacity as in the channel (SK1) and in the input channel (EK2), the channel (SK1) in the input and output (VV1) with the following frequency frequency modulator (FM1), and the input channel (EK2) in the input (EC2) FD2) and the frequency modulator <FM1> as well as the frequency modulator (FM2) are used with the filter 1-individual filter (FE1) with the reference voltage (SVN) 1.4. Para1le11 telephone line (NST1, NSTn) is used for the purpose of connection to the account (R, S or T) with the adapter (AAE), for the purpose of using the parallel version of the parallel (NAL) with the same number (see NAL). GS2) account and other distribution channel (SK2) and other distribution channel (EKI), den