DE1037927B - Arrangement for remote counting and summation of pulses from several measuring stations in a central registration station - Google Patents

Description

GERMAN

The remote reading of meter readings as well as the remote measurement of generated or consumed energy and the summation of such measured values at a central control station if there are several remote measuring stations are present, can be done in a known manner by transmitting power or energy-adequate impulses take place via a transmission channel. However, since measurement messages consisting of pulses can be falsified in the transmission channel, regardless of how a Transmission channel may be designed, be it that pulses are lost or the number of pulses due to interference pulses are multiplied and a single pulse usually represents a high energy value, lead to errors in the Transmission often leads to large differences in energy billing and significant financial differences. The present invention is based on the object of unavoidable transmission errors Average out, correct and report interferences.

It is already a device for the electrical remote transmission of counting pulses via an automatic Telephone network known in which a measuring station is called by telephone from an interrogation station. the The measuring station contains a single register in the form of a differential counter and a relay pulse generator. To If the automatic connection has been carried out, the pulse generator is switched on, which pulses simultaneously on the Difference counter and the line outputs until the difference counter is brought to the zero position. It exists but at the interrogation station no control over whether the transmitted number of impulses is correct.

The invention relates to an arrangement for remote counting and summation of pulses from several measuring stations in a central registration station with means for storing the measured value pulses and means for counting and transmission of the same in each measuring station, means for reporting back the received pulses in the registration station, means for acknowledging the feedback as well as counting and counting memories in each Measuring station, and it is characterized in that this memory alternately counting in and out and Means are provided for switching the memory after transmission and means which in the event a correct transmission initiate the registration in the registration station and delete the storage and in the event of an incorrect transmission, delete the transmission and initiate a repetition of the transmission.

The invention means a technical advance insofar as two registers are provided as well as a switching device which, when activated by the interrogation station, switches the previously counting register to the transmission device and switches the other register to the counter . After the register status has been transmitted, the register is initially not deleted, but a response from the over-arrangement takes place

for remote counting and totalizing

of pulses from several measuring stations

in a central registration station

Applicant:
Landis & Gyr AG, Zug (Switzerland)

Representative: Dr.-Ing .: A. Schulze, patent attorney,
Berlin-Wilmersdorf, Jenaer Str. 14

Claimed priority:
Switzerland from June 23, 1954

Dipl.-Phys. Albrecht Maass, Bremen,

and Dipl.-El.-Techn. Alois Kaiser, Zug (Switzerland),

have been named as inventors

mean value. The same is automatically compared with the register and, if they match, as "good" · acknowledged to the query station or, if they do not match, reported as »wrong, whereupon the register status is repeated again. If, however, the transmission is incorrect twice, the transmission channel is so disturbed that that further transmissions would not go through either. The false report for a result is the possibility of a different, possibly later determination or follow-up check is given, and an evaluation the wrong result is avoided.

Further features of the invention emerge from the description of an exemplary embodiment which is based on Hand of the drawing is explained in more detail.

An attachment includes ζ. Β. several measuring stations located apart in an energy distribution network with several energy generators and a central registration station which is connected to each measuring station via a VHF transmission channel and which registers and adds up the measured values transmitted in pulse form. Fig. 1 shows in a block diagram the structure of a measuring station and the registration station. The measuring station contains an electricity meter with pulse contact ZJ, which supplies energy-adequate pulses, two pulse storage units SPI and SPII, a memory switching device SU, a transmission and control device UK, a counter with printing unit ZD, a totalizing counter SZl, a measuring station search device MS and a VHF transceiver station SE. The central registration station contains an FM transceiver

809 599/389

3 4

station ES; a transmission and control device and control of the pulses corresponding to SU and UK from UKR, a measuring station selection device MW, a counting Fig. 1.

work with printing unit ZD, a sum for each measuring station. The diagram in FIG. 3 contains for the first measuring station

mierendes counter SZl .. .SZlO corresponding to ten a receiver El with demodulator Demi and some measuring stations and a total totaling counter GSZ. 5 audio frequency relays TFR2 ... TFR 6, which on ton-Die arrangement works as follows: In the measuring frequency-modulated VHF pulses respond and you as a station will pass on the DC pulses from the pulse contact of the counter ZJ , furthermore a transmitter SI generated pulses via a first Changeover contact with modulator Mod I, oscillator Osz I and control lines of the memory switchover device SU the memory unit, each with a tone frequency generator TFG7 ... TFG10. SPI supplied, while a second changeover contact io It also contains a storage unit SPII with the transmission and con-receiver ER with demodulator DemR and some sound control device UK for the central registration station. If this measuring station is frequency relays TFRl, TFR7 ... TFRlO, which are called up by the registration station for interrogation, receivers £ Ί of the measuring station respond to audio-frequency-modulated pulses automatically by means of the measuring station selection device and they are further processed as direct current pulses MW over the VHF channel and the Measuring stations 15, and a transmitter SÄ with modulator ModR, oscillation search device MS takes place, the transmission oscillator OszR and control lines, each with an audio frequency and control device UK, switch the two generators TFG1 ... TFG6. For the transmission of all storage units by means of the two switching contacts in control pulses in both directions via the VHF of the storage switching device S U. In the exemplary embodiment, the impulses are ten different audio frequencies that are now required from the counter Z / to the storage unit SPII.

directs. The storage unit SPI is connected to the transmission. The diagram in FIG. 4 contains a counter with a printing device UK , its achieved pulse counter ZD, a totaling counting position is scanned for each measuring station and the number of pulses through the work SZ1 ... SZ10, a total totaling Counter transmission device UK in the transmission channel GSZ, furthermore a clock with minute contact UJ, which is counted in without deleting the storage unit I. In the 25 full-minute, adjustable intervals automatically central registration station, the received Im- a transmission is triggered, and further relays and voter pulses in the transmission and control device UKR for the selection of the measuring station and for storage, stored and acknowledged back on the transmission channel and counting the pulses received,
counts. In the measuring station these impulses are used as Quit. The system works as follows: In the measuring station

The transmission and control unit continuously stores the pulses issued by the counter Z / abeinrichtung UK with the original number of pulses in one of the two storage units. If they match, this device outputs in the position shown in the storage unit SPI by emitting a »good-f pulse, which is transmitted to the central via the changeover contact c ^{1 of} the rotary selector WE with the registration station. This "good" impulse advances each impulse one step. There are nine effects in the measuring station as well as in the regi 35 Relay Kl. .. K9 arranged, and on web B ₁ the registration of the number of pulses in the counting station is switched over in each step 1 ... 9, which works with printing unit ZD and the summation in the one marks. On track B ₂ , step 10, a counters SZl and GSZ. After this process ReIaIsW _{1 are} excited, which with contact w \ the relays in both stations switches back the stored, now registered Kl ... K9 and with contact w \ a th pulse values deleted. If the measurement pulse was transmitted to the rotary selector WZ and thus a value pulse was incorrect, it will be switched to step after the return. On track B 1, instead of the “good” pulse, an alarm pulse is triggered, step 1 a relay KlO is energized, which marks the first ten which marks the deletion in the transmission and control. Nine ReIaISiClO ₁₁₁ AOO are arranged for all the UKR equipment of the central registration station, and a relay W _% on track B2 acts and initiates the recounting of the number of pulses. 45 Step 10, connected, which one with contact w \ the Acknowledgment is repeated, and a ten relay switches back again and with contact w \ a »Gutu impulse or an alarm impulse. In both cases, the rotary selector WH gives an impulse, which means that the transferred values are now registered in anaw, and the first hundred is counted in a logical manner. There are alarm impulses, however, with a special false- nine relays for the hundreds marking and one relay marking. In the manner described, the zen- 50 PF ₃ can interrogate all measuring stations for switching back the hundreds relay and central registration station. If the first measuring station has recently been requested to switch to the thousands memory, etc., they will be sorted. The relays mark with their contacts storage units SPI and SPII switched back to the ^ ₁ ... A ₉₀₀₀ their assignment on a synchronous selector SM and the pulse values of the memory and on a rotary selector MQ. This storage is transferred to the SPII factory. 55 continued on storage unit SPI until the

FIG. 2 shows a detailed circuit diagram of a measuring central registration station from the command for overstating dar; and switchover of the counter Z / to the memory

Fig. 3 illustrates the transmission channel, which takes place so work SP II.

is as detailed as for an understanding of the invention. In the central registration station (Fig. 4) a is; in 60 line of transmission via a minute contact one

Fig. 4 is a detailed circuit diagram of a central clock UJ, which is shown, for example, a mother clock of an electrical registration station, which can be for querying tric clock system, pulse-wise relay AN is expanded from ten measuring stations. energized, which with contact at ¹ turns the rotary selector MM

The scheme of Fig. 2 contains a counter with impulses every minute by one step forward. Depending on the contact Z /, two storage units SPI and SPII, with 65 connections created on the contact bank, for example only the input of the latter is indicated, which is based on steps 1, 5, 9, but relay D is equipped with exactly the same equipment as SPI, a counting contact on ^{2 in} pulses. The intervals of this Anwerk with printing unit ZD, a totaling counter speaking can be predetermined by the selection of the switching steps SZl (first measuring station) and means (relay, selector) for the, and these intervals be-switching of the storage units and the transmission 70 agree Time between two transmissions and

5 6

must last at least as long as the orbital period tens, hundreds, thousands scanned and by means of

the synchronous selector. The number of relays to be sent /, contact i ¹ , via TFG10, TFR10 into the

questioning stations, transferred to the need for a registration station at all times, where a Telais JR with

Knowledge of the stored values and on the other contact ir ¹ these pulses via path B 2 of the rotary selector

extensive use of the VHF channel, e.g. for telepho- 5 ME in the registering relay 1 ... 9000 dials. the

Take niche news carefully. Relay D brings number of the measuring station is also transmitted by

with contact d ¹ relay L, which during the transmission in the measuring station on the contacts 40 .. .49 of the web

the transmission channel with contact I ¹ against other 52 of the synchronous selector SM, starting with 40, which the

Occupancy locks. Contact I ¹ energizes the transmission number corresponding number of contacts with plus

channel (Fig. 3) relay B, which with contact b ¹ the Eire- i ° are bound; with which relay / transmits these impulses and

supply of the occupancy relay BES (Fig. 4) when lifting the in the central registration station via relay JR on the

Handset of the telephone station prevented and marked with the registering relays 40 .. .49. On lane 1 of the

clock δ ² and δ ³ the microphone and telephone circuit rotary selector ME, step 50, a relay K is energized,

interrupts. Contact δ ⁴ brings the busy lamp BL which causes the control acknowledgment.

(Fig. 3) to glow. * 5 Relay K allows control acknowledgment via contact k ¹

When choosing the measuring stations, it must be ensured that a synchronous selector QM is started. Via path B 2 , all stations are energized in a constant sequence on each step relay QW impulsively, which transmit the stored value. The selection of a measuring pulse by means of contact qw ¹ via TFG6, TFR6 in station takes place by means of the rotary selector MS, which transmits through the measuring station, where a relay WQ clocks one step further by means of contact d ² of relay D wq ¹ which transmits the pulses to a rotary selector MQ is switched. Contact I ^{1 is} closed. Kon- and this advances one step with each impulse, clock bes ^{1 of} a busy marker relay BES prevents this via path B1 of the selector QM in the registration station forwarding when the VHF channel is occupied with a part of the transmitted and stored one, ten, phone calls is. With every step of the voter hundreds and thousands scanned and by means of an MS , a relay P 25 connected to track Sl speaks to relay QR and its contact qr ¹ via TFG5, TFR5 in, which, according to the selection of one of the station relays, transmits the measuring station, where a relay Q with contact q ¹ Sl ... SlO, which are connected to path B2 , to bring the selector MQ to a relay Ql response via path 52 , with which the desired station passes on mar-. On track Bl of the same voter are ked is. Each station relay Sl ... SlO has a con - the values stored in the storage unit SPI scanned clock s \ ... slS in the starting circuit of a synchronous selector 30 and passed on as pulses to relay Q 2 . The control WM with three lanes B ₁ ... B ₃ , which takes place in the station the correct transmission, that both starts dialing. Via path B2 , relays Ql and Q2 will have to respond at the same time on each contact. If relay SW is energized, which acknowledges too few pulses during a voter rotation, only relay Q2 corresponds to, with contact sw ¹ eleven pulses on the audio frequency generator, on the other hand, too many pulses are acknowledged, so only rator TFG3 speaks, so that the transmitter SR emits eleven pulses off- 35 relay Ql on. In these two cases, a relay AL is emitted, which is received by all stations in pulses via the contacts q \, q \, energized, but was (Fig. 3). In all measuring stations the audio frequency receives the transmission correctly, so the relay AL never comes to the relay TFR3 and thus the relay SEW (Fig. 2) eleven Im-tighten.

pulse. As a result, the rotation, transmission and acknowledgment run in all measuring stations

Selector MW, stimulated by contact sew ¹ . In the 40 thirty-nine steps of the selector MQ error-free, so

Registration station (Fig. 4) on track 3 of the synchronous that relay AL could never respond, so is on step

Wählers WM energizes the marked relay S ₁ ... S ₁₀ on 40 of the web B 3, a relay G is energized in pulses, which

the corresponding step a relay SS, which with contact g ¹ via TFG8, TFR8 on a pulse

Contact ss ¹ transmits a pulse to the tone frequency generator relay GR in the registration station. His cons-

TFG2 there. This pulse is broadcast and in every 45 cycles gr ¹ starts a synchronous selector ZM ,

Measuring stations via the audio frequency relay TFR2 which its tracks Bl ... BS through contacts of the relays

Relay SES (Fig. 2) energized, which with contact ses ¹ via 1 .. .9, 10 .. .90, 100 .. .900, 1000 .. .9000, 40 .. .49 mar-

the web 2 of the rotary selector MW energizes a relay A , are kiert.

which on the switching path Bl assigned to the measuring station counts the units in the adder for station I,

step is connected. Relay A brings with contact α ¹ 5 ° SZl, in the total adder GSZ, in the printing unit ZD;

Relay C and with contact a ² relays SE. Relay C switches web B 2 counts the tens in the printing unit ZD;

the counter Z / to the storage unit Si ³ II, and web B 3 counts the hundreds in the printing unit ZD;

Relay SE closes its contacts with se ... ¹ se _s velvety path 54 counts the thousands in the printing unit ZD;

borrowed circuits that are used for transmission. Lane B 5 counts the measuring station number in the printing

The transmission from the measuring station to the registration unit ZD;

station is triggered by a start pulse, which brings track 56 to step 49 relay ZR to

is sent out by the registration station, if the pull, the one with contact zr ¹ in the meter with printer ZD

Selector WM is on step 12, on which relay S TR, by means of relay DR, the printing process and the reset

is excited, which with contact sir ¹ triggers the audio frequency of the counters. The clock with printing mechanism UD

generator TFGi energized, whereby a pulse sent 60 is used to print the time. Line 56 of the voter ZM brings

which in the measuring station via the audio frequency further to step 50 a relay ZR1 to respond,

relay TFRi on relay ST energized. A contact st ^{1 of} this which the registration relays 1 ... 9000 and other relays

The relay starts the synchronous selector SM. About to put back in the starting position. In the measuring station

Path 51 is pulsed on each contact relay WR (Fig. 2) causes relay G the same processes as

excited that this series of impulses through contact wr ¹ via 65 relays GR in the registration station by a contact g ²

TFG9 and TFR 9 start in the registration station (Fig. 4) via a synchronous selector MZ with five lanes

carries where a relay WJ lets these pulses with contact wi ¹ , which marks the registration relay 1 .. .9000

on the rotary selector ME , which with each in the counter with printer ZD and in the adding

Impulse advances one step. In the measuring station counter SZl counts and the relays Z and Zl

(Fig. 2) the stored units, 70 printing process and the reset are triggered via the web B 2. So is

the station is back in the starting days and ready for another transmission.

If the transmission was faulty for any reason, a false acknowledgment occurs in the measuring station (Fig. 2) in that one of the two relays Ql, QI responds alone, whereby relay AL is energized in pulses and with contact al ¹ brings a relay ALi to respond. As a result, with contact αΐ [, prevents relay G from being energized via path B 3 of selector MQ in step 40. Relay AL drops out and energizes a relay AL2 via contacts al ¹ , al \. Relay AL is also with contact al ² a pulse via TFGl, TFRl after the registration station (Fig. A), where a relay ALR responds. This brings a relay ALRl with contact air ¹ and, when it drops out, a relay ALR2 via contacts air ¹ , alr \ . With contact alr ^% the assignment of the marking relays 1 .. .9000, 40 .. .49 is deleted. Via path B3 of the selector QM , a relay T is energized in step 40, which with contact t ¹ via TFGA, TFRA gives a pulse to the measuring station, which relay ST responds and initiates the transmission for the second time, as described for the first time. This second start pulse also brings the relay ALI back to the rest position with contact si ^2. The measuring station now sends the entire pulse program to the central registration station for the second time in the manner described above, and the second acknowledgment takes place in the same way. If this is correct, then in the measuring station, in step 40 of the selector MQ, the relay G responds via path B 3 and, as described, ends the transmission.

If the second transmission or its acknowledgment is also faulty, relay AL in the measuring station responds for the second time and brings relays EX and EX1 via contacts al ³ , al \ and sends, as already described, with contact al ² again an alarm pulse to the registration station. In the measuring station, relay EX with a contact ex ¹ energizes a relay FM in the meter with printing unit ZD, which marks the incorrect registration. Relay EXl starts the syncbron selector MZ with contact ex \, which counts the marked measured values to the counters ZD and SZl. The counting and registration in the registration station also takes place in a completely analogous manner, in that relay A LR responds for the second time to the transmitted alarm pulse, thereby energizing relays EXR and EXRl. Relay EXR causes the error marking with contact ^{exr 1} and relay EXRl with contact exr \ the start-up of the synchronous rotary selector ZM and prevents the excitation of relay T with contact exr \ . The error marking in the ZD can be done, for example, in an additional character or in a different printing color. An additional error display is that a signal lamp FL switched on by Kontakt air] lights up during an incorrect registration. A permanent alarm signaling can consist in that a relay ALD is toggled by a contact exr \ , which can be reset by means of a button KB. This relay switches a signal lamp FLD.

In the event of a power failure during a transmission, special measures are provided. If the voltage fails during a transmission in the central registration station, a voltage safety relay S / fails, which has been maintained via its contact si ¹ . The voltage starts again, so pulls the next minute pulse relay to and energized by contact on a relay ³ switches Ci ?, with contact at the Markierrelais * 1 ... 9000, 40 ... 49 in the starting position, switches on contact with ^h a relay RK, which was energized via the path B1 of the selector ME , in its starting position, whereby this with contact rk ¹ and the cam contact me of the selector ME via its path 53 energizes a relay HR , which lets this selector run to step zero . Furthermore, relay AN with contact at ^e energizes a relay HRl, which with contact hr \ blocks relay K and thus prevents the acknowledgment process when the selector returns , and with contact at ¹ relay AN gives a pulse via TFGA, TFA ₄ to relay ST in the measuring station, which causes the transmission to be repeated. If relay ^ iV drops out again at the end of the first pulse, then ³ relays CR1 are energized via contact. When the relay AN is excited by the second minute pulse, the relay S / is excited again via the contacts cr \ and an ^{s, whereby the transmission continues.} If the voltage fails in the measuring station, a voltage control relay SJM is de-energized, which is provided to switch the measuring station to an emergency power group.

Claims (7)

Claims ·. 1. Arrangement for remote counting and summation of pulses from several measuring stations in a central one Registration station with means for storing the measured value pulses and means for counting and Transmission of the same in each measuring station, means for reporting back the received pulses in the Registration station, means for acknowledging the feedback as well as counting and counting memories in each measuring station, characterized in that these memories count and count alternately Means are provided for switching the memory after transmission and means, which in the In the event of a correct transmission, initiate the registration in the registration station and the storage delete and in the case of a wrong transmission delete the transmission and a repetition of the transmission cause. 2. Arrangement according to claim 1, characterized in that the switchable storage units in each measuring station have a selector and ten relays for each decade to be stored. 3. Arrangement according to claim 1, characterized in that the means for switching the memory after a transmission in a relay (C), which responds after the selective selection of the measuring station, and auxiliary relays (A, B) , which said relay (C ) steer. 4. Arrangement according to claim 1, characterized by synchronous selector, rotary selector and relay in the Measuring stations and in the registration station, which transmit the measured value pulses for counting and acknowledgment. 5. Arrangement according to claim 4, characterized in that each measuring station for acknowledging the received measured value pulses has a relay (QA) which responds via a path of a rotary selector (MQ) to each received measured value pulse, and a further relay (Q2) which via a marked path of the same selector responds to each transmitted measured value pulse, further comprising a relay (AL) which responds when one of the two mentioned relays (Ql, Q2) responds alone and does not respond when the two said relays (Ql, Q2) together speak to. 6. Arrangement according to claim 5, characterized in that the last-mentioned relay (AL) sends a pulse to the registration station in the event of his speaking, which causes the deletion and subsequent repetition of the transmission. 7. Arrangement according to claim 5, characterized by a relay (G) which responds impulsively after the acknowledgment has ended without errors and causes the registration of the transmission and then resetting of the switching means in the starting position in the measuring station and the registration station. 10 Considered publications:
W. Venske, "Remote control systems in the energy supply company", W. Girardet, Essen 1950.
German Patent Nos. 571 128, 711 800,511 360; German patent application Z 1813, VIII a / 21 a ^a (published October 15, 1953); In addition 3 sheets of drawings © M »599/589 β. 58