FI60628B - COPYING INSTRUCTIONS FOR THE PURPOSE OF DEFINITION OF DEBITERY UTSAENDA TIDSTAKTER I TELEFONANLAEGGNINGAR - Google Patents

Description

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Wa [b] 11 ^ utläconinosskrift 6U6ZÖ C ^ Patent ay '»ηικ- tty 10 02 1932 jifr * j» 3 ^' 'Patent «eddelat ^' (S1) Kv.ik.3 / int.a.3 H 04 Μ 15/22 SUOMI-FINLAND (21) PtMnKJtaktmut - PatanuntSkninj 7524l6 ¢ 22) H «k« mltpitvt - Art »eknln (* dt | 27.08.75 (23) AlkupUvt — Gllti | h« t * dag 27-08.75 (41) Tulkit lulklMk ·! - Bllvlt affentlig 26.03 * 76

Patent and Registration Office .... ........ . ,. ,. ,. , _. · (44) Date of issue of the month. -

Patent- och registerstyrelsen 'Aiwttkan uchfd och utl. * Krtfun publkurwl 30.10.81 (32) (33) (31) Requested privilege —Begird prloritet 25.09.74

Federal Republic of Germany-Förbundsrepubliken Tyskland (EE) P 2445845-5-31 (71) Siemens Aktiengesellschaft, Berlin / Munchen, DE; Wittelshacherplatz 2, D-8000 Munchen 2, Federal Republic of Germany-Förhundsrepubliken Tarski and (DE) (72) Rainer Kuhn, Germering, Federal Republic of Germany-Förbundsrepubliken Germany (DE) (74) Berggren Oy Ab (54) Switching arrangement for tariff switching for the transmission of schedules to telephone exchanges - Kopplingsanordning för tariffväxling vid för bestämmande av debitering utsända tidstakter i telefonanläggningar

In telephone networks where charging is determined by calculating time pulses during a call, a scheduler is the central device. This scheduler generates the pulsation rate required for each telephone connection and provides pulses in a continuous queue during the call to the calling subscriber's billing counter and possibly to the subscriber's subscription counter. The time interval of the pulses depends on the length of the established connection.

For each called area, the same permanent time slot is not always transmitted, but these schedules are changed within a day at predetermined change times. Thus, there may be several time periods per called area, with different call times available per charging unit. In particular, as subscriber-selective international traffic expands, it must be borne in mind that the beginning of each time period in which each reduced charge is complied with may differ in time in each called area.

An indication of each tariff change is given by a suitable control device, for example a central clock.

2 60628

The object of the invention is to provide an arrangement for the automatic change of the tariff, which can have an almost arbitrary number of tariff periods which are freely selectable within the time raster.

This task is solved by deriving one signal at a time from the time zero at a predetermined time step to the end of a 2M hour period to one of the outputs corresponding to the number of time steps, so that each of the outputs corresponding to the beginning of the predetermined period is connected when a predetermined switching time is reached under the influence of a signal at the corresponding output, the output of the logic circuit exclusively corresponding to this period has an output signal until the next switching time is reached and that this output signal

Tariffs can be set arbitrarily at intervals determined by the selected time steps. Only the start time of each tariff period needs to be selected by switching. According to the invention, the tariff periods are obtained statically. The control of the current tariff is thus obtained continuously throughout the tariff period in question. Thus, high interference certainty is obtained. During commissioning or after an interruption caused by the correction of a fault that occurs, the schedule to be sent is then automatically set to the correct tariff. According to one development of the invention, the different schedules of each tariff period can be exchanged for each called area independently. This autonomous tariff control of the so-called areas can simply take into account the different time periods for which, for example, a reduced cross-border charge has been established.

The invention is explained in more detail below in connection with the drawing. In the drawing, Fig. 1 shows a block diagram for explaining the principle of tariff switching and Fig. 2 a pulse diagram for signals occurring at different time stages at the respective outputs.

In the block diagram of Fig. 1, the clock time required for tariff control, 3,60628, obtained from the central clock unit, is denoted by the reference character Z.

The result obtained is transferred to the selected time steps corresponding, for example, every half hour by means of a control led kooderipiirin C-atoms St for example in the form of binary coded converter circuit U. Under the assumed case, a half-hour interval in the converter circuit 48 outputs corresponding to 48 half-hour. Starting from time zero, the instantaneous time is then obtained from that output as a continuous signal after each full time step. at the start of each new half hour is therefore a corresponding output of the clock signal continuously for up to 24 corresponding to the signal. Figure 2 shows this for a few outputs. In addition to the time, the corresponding half hours are marked. It follows from the pulse diagram that at 23 * 30 there is a signal at all 48 outputs. The converter circuit works like a shift register with 48 steps that are written in full successively at the rate of half an hour.

To each stroke of the called area should be interchangeable pre-programmed in the second and in the context of sections, each of sections to predetermined sides of the hours of the time base can be chosen freely introduced into the outlet 48 of the selector switch box R. programming for predetermined selected initial provided for coupling of a section corresponding to the time of half an hour output. Performing programming is thus very simple.

Assume now, for example, that for the ZZT1 of the called area rate, obtained, for example, from a total of 15 synchronized units enabling the rate of the called area, there must be three tariff time periods.

This is shown in block R, which is shown equipped with 48 half-hour step of the clock and shift points U1-U3 · to bar called this area is thus connected to the three exchange points at one, at six o'clock and at 18 the corresponding outputs of the 2, 12 and 36. The three-period ZA- Determining the ZC based on the programmed switching times is performed by simple logic connections.

For this, in the selected embodiment with three predetermined time periods, the logic circuit elements GA-GC are used. The valid time period can be defined so that when the switching point indicating the start, for example the switching point UI, is reached, there is a signal at the corresponding output and there is no signal at the output corresponding to the end of this time period. This can be used to provide 11,60628 signals for the current time period. Thus, a time period should not be valid when there is a signal at the outputs corresponding to the switching points defining this time period or when there is no signal in either. Thus, the time period ZA should only be valid when there is a signal exclusively at the output of the converter circuit U corresponding to the switching point UI. When the switching point U2, which defines the end of this time period and at the same time the beginning of the next time period, is given, the time period ZA is not valid. This function, which determines the time periods on the basis of the programmed switching points, is valid otherwise than in the case of the time period starting at the last switching point, in the selected example at U3. The fact that in that case none of the above time periods should then be valid can be used to determine this time period. In the exemplary embodiment, time periods ZA and ZB are determined using ports GA and GB. The output of each of these ports has a signal in each case only when there is a signal exclusively at the input connected to the output of the converter circuit which determines the start of the time period. The output of the relevant port remains dormant if there is also a signal at the output of the converter circuit connected to the inverting input. In the case of the last time period, therefore, the other time periods are not valid. In the case of the selected example, this means that there is no signal at the outputs of ports GA and GB. This fact can now be used to determine the last time period. Upon reaching the switching point U3, there is only a signal at the output of the gate GC so that the time period ZC is in use. Another possibility for setting time periods is based on the use of absolute-or-gates. The dominant function of the first time periods ZA and ZB consists of anticoinsidence. The determination of the last time period can be performed on the basis of the fact that either the first and the last switching point have not yet been reached or both of them have already been bypassed and give a signal. The function to be determined when using absolute-or-gates then consists of coincidence.

Determining time periods based on programmed switching points is thus very easy.

The outputs defining the time periods of the gates can correspond to the private tariffs as desired by making the corresponding connections. The order can be determined, for example, by soldering one wire per tariff.

Claims (3)

5 60628 In the exemplary embodiment, the time period ZA corresponds to the night tariff NT defined by the gate GA, the time period ZB corresponds to the daily tariff TT, and the time period ZC corresponds to the intermediate tariff ZT. Since the port corresponding to the current time period has an output signal that acts as a continuous switching signal, the correct tariff is switched on automatically after a power failure. By means of the switching signal obtained in this way, the desired time can then be transmitted in a predetermined time period corresponding to the called area. 1. A switching arrangement for determining a charge for transmitted time rates at predetermined times of the day by influencing the generation of a tariff switching signal in telephone exchanges, characterized in that one the number of outputs corresponding to the number of time steps (0-47), that each of the corresponding outputs (e.g. 2, 12, 36) starting from a predetermined period is connected by logic circuit elements (GA, GB, GC) so that a predetermined switching time point (e.g. UI) when the signal at the corresponding output (2) is reached, the output (AA) of the logic circuit exclusively corresponding to this period (ZA) has an output signal until the next switching time (U2) is reached and that this output signal is predetermined corresponding to the selected order of tariff periods constitutes the current scheduled time change signal. Switching arrangement according to claim 1, characterized in that the different time slots of each tariff period can be changed for each called area independently. Switching arrangement according to Claims 1 and 2, characterized in that the logic circuit elements are absolute or circuits.