SU452973A3 - Communication system, for example, telephone with central control - Google Patents

Description

The embellishment is intended for telephone communication installations with central centers, mainly with a telephony station control device and individual drivers, preferably with a control device for switching the communication technology on. This separation of non-interrupting lines between individual and central links is already known. Communication systems, such as telephone, with central control, are known, which contain a central control device connected to an intermediate device with information storage and command accumulators and code converters using electronic switching means, as well as individual switching devices, such as associated with an intermediate control device using electromagnetic switching means. The purpose of the invention is to match the transmission speed between the central control device and the intermediate control device on the one hand and between individual switching devices on the other. This is achieved by the fact that, in the proposed communication system 11, the central control unit is connected to the intermediate control unit and the individual switching devices are grouped into groups associated with the intermediate unit and controlled by independent women. FIG. 1 shows a diagram of a communication system; in fig. 2 shows an intermediate control device. The system contains individual switching devices 1, intermediate control device 2, electric circuit 3, central control devices 4, 5, data transmission devices 6, 7, coordinate connectors 8-10, control contact 11, information bus 12, program memory devices 13 , 14, information accumulator 15. I The intermediate control unit includes an indicator 16, a connection role 17, a transfer switch device 1.8. Intermediate control unit 2 of the communication system is connected via electric circuit 3 with central control units 4 and 5. The devices for data transmission 6, 7 are also connected. Indi vidual, switching devices: 1 are connected in the coordinate connectors. Each of the (shh is connected to its own control device, which outputs the installation commands received by the intermediate control device. Individual devices are connected via information (PLC, for example 12, with a corresponding intermediate control device 2. Individual devices have three stages of connection, The links of which are connected via intermediate lines in such a way that for each output of the connection from the first to the penultimate stage of communication A to B it is separately rigidly assigned but the output of communication from the second Oh to the last stage B and 6, the outputs of the communication elements of the communications links C are partially not included) in the individual 11), in which part of these outputs are individually switched on by 1para. To the other, located in a row, the centralized 1 1NYM control devices 4, 5 of the Primary Communication software program ycTpoiiGTBy 13, 14. From the program, the central control device takes data on which program to process the information, The input is sent to the centralized control device, given to iy o by the intermediate device unrardle 2sh. To the common cueral controlling device, in addition, the four-part shared storage device is wi 15, the storage capacity of which is Op zhenii central uprailnyuschego device depending on the need. 11 central h1 1e control devices 4, 5 can 11 () And zodit (in action (electric power 3 from the control unit (not shown in fig. I)). The unit allows you to check the functionality of the central device yii and the content of the software storage devices 13 and 14- (issuance of information and / or its accumulation) .The intermediate control device 2 is connected with an information field with individual switching devices, in particular with the control contact 1G of the coordinator connector 8. For example, it is connected to the center via electrical circuit 3 control unit 4. I The intermediate device consists of individual links, such as control contact 11. With the help of identifier 16, it can be activated in a position with several simultaneously connected connection devices that are activated, for example, by contacts corresponding to the connection and output signals of the necessary mechanisms for connecting the corresponding relays, for example, relay 17. The required current foams are fed into a separate ™ from each individual switching device to KSR control device. The relay for connecting individual switching devices, such as relay 17, is located 1o in the control matrix passing through all the devices. The contacts corresponding to its relay connection 17 turn on transmitting switching devices 18, and the control pin 11 on receiving switching devices 19. At the same time, it should be especially noted that H ereda 0 1 and nr. Switching 1S 1e devices are available in large quantities, and information going to and from the intermediate control device is transmitted via an information bus about the help of a parallel code. It also means that the transmission lines connected to the transmitting switchgear and receiving switchboards with ionic devices are multicore. I Generally indestructible information is applied simultaneously to the information bus 12. Information is transmitted both from individual switching devices to the central unit and back. In each case, the intermediate control device serves as an intermediate link. The transfer of information from one individual first switching device to the central control unit is then permanently indicated as read. The postback is constantly labeled how to write. Accordingly, in the interval of the control unit, criteria for reading and writing are formed, i. The criterion for reading is permanently formed in the intermediate controller, when it is necessary to call its individual device, from the switch of the control by the switching group And through the corresponding contact, and when all the processes involved in turning on the previous workflow are completed, i. If an individual device is not required, a criterion is formed in the intermediate control device The series is written, meaning for the mechanism for controlling the working fields, readiness to receive information, which is located in the central control unit and must be transmitted to the corresponding intermediate control unit. Therefore, there may be a case in which the need arises for your individual device while the intermediate control device is still in the state of being ready to receive information. This operating state is raised when the intermediate control device with information processing is still ready. In this case, the intermediate control device is not equipped with 1x for which communication with the central control unit. In the intermediate control unit, a blocking criterion is formed. The circuit contains two central control devices. Accordingly, the electric circuits 3 are double, i. In the intermediate control device there are devices and current circuits for transmitting information also partially twofold. In addition, comparison devices are introduced at various places (in the drawing, not showing i;;). i At the same time, it is possible to monitor the correctness of the transfer of information and the correctness of its processing. In the same way, a continuous operation of the switching installation can be ensured if an interference occurs at any place of the central track of the transmission of the traffic signal. From the central control unit 4 to all intermediate control devices, the protrone is a common electrical circuit. In a looping sequence, all the intermediate devices of the field control interrogate one by one whether there is any criterion to read, write or block. Each working field control mechanism has a connection device 20 to which the address receiving device 21J is connected. Thus, when cyclically polling intermediate field control devices, the central control device constantly connects one intermediate field control device; ; at each connection, the central control unit provides the address to the appropriate intermediate control unit for the operating fields. This transfer of address takes place in different ways depending on the time of connecting the intermediate control unit to the electrical circuit. The central control unit for the required connection duration sends the address of the corresponding; intermediate control device working fields. The start and end of the connection are set in a simple way by marking the start of and. the end of the parcel address through the address line. On the other hand, the addresses of the respective intermediate control devices that are to be connected or disconnected by an electrical circuit can be transmitted via the line themselves. The receiving device of the addresses of each intermediate control device must be securely connected to the electrical circuit. In this case, connecting and disconnecting the intermediate control unit using connection device 20 is ensured by the fact that the address of the corresponding intermediate control unit is sent to the electrical circuit together with an additional criterion, connect or disconnect from the central control device to all intermediate control devices Half a mi. Addresses with any additional criterion should not be confused with other information transmitted via an electrical circuit. Only the device for connecting the corresponding intermediate control device responds to this desire. This address should not be confused with the addresses of the individual devices described in more detail below.

in my own way. I

If the central control unit connects (or disconnects) the intermediate field control unit via (or from) the electric circuit 3, only ycTpoRciBo receives the addresses of the corresponding intermediate control unit that controls the matching circuits 22-25 of the connecting device 20.

The criteria for reading, writing and locking are formed in the intermediate control device. The read criterion is given through exit 26, and the write criterion is read through exit 27 from the transit time control device. The blocking criterion is that the criteria for reading and writing are discarded. In addition, the blocking criterion is indicated by the absence of criteria to read and write. To identify it, you can also enter a third signal current circuit.

The criteria for reading, writing and locking are set by the central control unit. When the central device is locked through the connecting device, the device 20 connects the intermediate control device to the electric circuit 3, it accepts one of these criteria.

In order to transfer these criteria to the electric (; which circuit 3 can be connected specifically, i.e., the wires of the criterion line. In addition, they can be transmitted to the central unit directly through an electrical circuit.

FIG. 2 denotes one of the two output i-evils 20 of the data transfer area.

If the intermediate control device suggests to write the criterion, the corresponding criterion is transmitted to the central control device, which is disconnected from the intermediate control device through its device (connection 20, in the storage device of the central control device, the information is stored, and it is transmitted to the intermediate control device corresponds to the neck. If there is no information, the intermediate control device using its connection device 20 is disconnected from The electrical circuit 3.

If, on the contrary, in the intermediate device

control appears a blocking criterion, the central control unit is disconnected from this intermediate device regardless of the presence or absence of information for transmission from the central control device to the intermediate one.

If now the criterion appears to be read in the intermediate control device, then when connecting the intermediate unit to the central one, the transmission is carried out directly through the functional circuits 29 and 22. After that, the central control unit returns the intermediate intermediate criterion, which introduces the sending of relevant information from the intermediate unit electrical circuit 3 pa central. Information is transmitted by multiple sites.

Each part of the information is placed on special criteria and confirmed. I Each information is divided into several partial information. All information is coded. mainly binary, i.e., information transmitted via information bus 12, on the one hand, and electric circuit 3, on the other hand, as well as information recoded and intermediate stored in the control device. The transcoding in the intermediate control unit serves to match the transmission of information over the bus 12 in the parallel code to the transmission over the electric circuit 3 in the serial code. On the transmission line of the first type, information is transmitted using electromagnetic relays, and on transmission lines of the second type using electronic switching means, such as transistors. The high latency operating speed serves not only to accelerate non-interference on the center line of transmissions, but also to transmit information in a retrieved serial code. On the basis of this, a small number of transmission channels are used. In contrast, in the transmission lines of the first TI I1 "|), the information is transmitted through the multicore wires. Since they kicked off only relatively short distances, and with their multicore behavior, they did not incur large expenses for themselves, due to the non-transmission of information through parallel information. code and electromagnetic relays or equivalent switching devices achieve the necessary transmission time. I have already said that the information is divided into several partial information, transferred in parts using controlled criteria for electric circuit 3 According to informational information 12, the information is transmitted transmission of parallel code. All partial information is simultaneously transmitted via bus 12 to an intermediate control device. The information storage 15 is divided into parts of iSg-J-Sp. In the same way, in the memory 13 for storing instructions for each of the four partial information, one of the parts 13a-13p is allocated. . Each information consisting of sets, partial information, and each command, consisting of 113 partial partial commands, for transmission over chain 3 ends with an indication of the length and address. Before transmitting, information or commands are transmitted first by daiah length. E; it tells you what amount of information or order has been transferred hereafter. in their generality, instead of four partial information or partial commands, a smaller number can be dispensed with, the transfer is limited to a small amount of partial information or partial orders. The benefit of a previous testimony of length corresponding to the receiver, namely, the corresponding control mechanism of working units or the pentral control mechanism shows when the corresponding information transfer or command will be completed / transmitted. In addition, each detailed transmission is preceded by an indication of the address. In this way, it is preliminarily indicated which information is individually transmitted about the switching device or for which individual switching device is the intended command. It has been established that each E11 (}) of the organization 1) 11z; 1 «5 is included in the set of partial information; I refer to the addresses of individual devices, they should not be confused with the addresses of the mechanisms controlling the work of them. . A LARGE amount of information is determined by four partial information. Indication of the address, which exists directly but in part by information on electric circuit 3, makes it possible to additionally receive the volume of one or two partial information. The length specification, preceding the indication of the address, in the example proposed in the application clears the amount of partial information. The indication of the length, the indication of the address and a maximum of four partial information or commands are intermediately stored in equal four groups of binary code elements in the intermediate control unit and recoded from or to this transmission; this transcoding may be limited to a displaced parallel serial code and vice versa and together with intermediate memory to form one common process. Denote the mentioned group of binary code elements as Byte (in the proposed example, Byte consists of H (three elements). The first Byte, including the indication of length, the second and third Bytes, including the indication of address, and the fourth, containing information or order, form together a word. The transmission of a word via electric circuit 3 is controlled using additional criteria to read (26), write (27), blocking (2 {i -27) - as already described above, and confirmation of reception; ia (BUT). how the information readable to the central device from the individual link, through pin 11 is transmitted to an intermediate device (; control; this transfer precedes the call of the necessary contact; this call identifies with an identifier 16. But the address of the device appears as an address of this address 31. In addition, it can be used to excite, through a coordinate-shaped control matrix, a relay connection 17, which is connected to a control device. (. using terminal 32 includes both transmitting switching devices 18 and receiving switching devices 19. At the same time, general information is given on the information bus: No.ien)

II conductor in an individual switching device,. For example, when transmitting a parallel code to: the storage device 15 of the intermediate control device. Information is received in the partial storage devices 15a-15p of the information storage device, from which the control device is switched off again by disconnecting the corresponding relay 17. The information is stored in the partial storage devices from ISg to 15p of information storage for several Bytes, respectively. In the information storage device, the information is outside the quality volume: the length readings are fed to one of the two inputs of the function circuits 33. Separate Bytes, accumulated nye information in the storage unit are supplied to each input of functional circuits 34-37. The information applied to one of the inputs of the functional circuit can only be uninterrupted further when the appropriate signal is applied through its other input to send. This signal is connected in series from the distributor 38 to various functional circuits using its contact finger 39, 40, 41,34-37 1, thus, various Bytes are subsequently transmitted to the transmission: first the length data is transmitted, then the address and then 11 and |) or teams. 1as11 targetl 38 is controlled by a time regulation loop (i) 42. As a result, through the functional circuits 2 and 2; i, the criterion for writing to the central control unit is specified. This means that the intermediate control device is ready to receive a command from the central control unit. If, on the other hand, the intermediate control device is called by only one of the individual switching devices, the address and the one in the memory ready for transmission in the accumulated state are in the accumulated state during the length reading. mustache; trio control; at the same time, Sognets / Guessing individual device.

12, the relevant criteria are transmitted to the transit time control circuit 42. The criterion is read through the functional circuits 29 and 23 is set to the central control unit. If the criterion is read in its connection cycle, the connecting device 20 of the corresponding intermediate control device leaves and is connected to the electric circuit 3, then the central control device then takes the criterion to read 26. For the central control device it means that information must be received from the directly connected intermediate device . Since the intermediate control device is ready to receive due to connection to the free memory cell in the central information storage device, it immediately accepts the length indication given by the intermediate control unit for the operating fields to the electrical circuit 3. At the same time, the functional circuit 33 of the intermediate control device is immediately the same permeable is connected to transmit the length indication, while it is determined from the arrival time control circuit 42 that the length data, the address and the frequency ANT information is stored in an intermediate state in the control device and are ready for transmission. Thus, the giving of the length indications is already in the ready state on the electric circuit, while the central control device uses the connecting device 20 to connect an intermediate control device. The central control unit accepts these lengths from the intermediate control unit via the electric circuit 3 and transfers them to the criterion of confirming the reception 30 via an electrical circuit or through a special criterion wire to the intermediate control unit. This criterion is included in the transit time control scheme 42, which sends the blocking criterion to the control unit and feeds the step-on impulse to the distributor 38. The latter in turn switches its contact finger one step further. Thus, the functional circuit 33 is locked for transit data transmission of the length indications, and the functional circuit 39 is controlled passable for transmission

13 addresses from identifier 16 to code converter 31. Since this further connection is completed, contact I excludes the blocking criterion from the read criterion. This criterion in turn leaves the zeitral control device, which is. The cut functional circuits 39, 43, and 24 receive address data on the electrical circuit 3. The central control unit, via electrical circuit 3, transmits an acknowledgment via the permeable functional circuit 22 to the transit time control circuit 42. The address can be transmitted as one or two Bytes. I Similarly, after the address in the form of further Bytes, partial information is transmitted from the intermediate control device to the working field to the central control unit. The length indication is pre-stored in the distributor 38. Thus, it is possible to set the sequence number of the information transfer in the intermediate control device. Since the length readings are transmitted to the central control unit, the same CaNloe is also valid for the central control unit. After receiving the last partial information of the word, the central control unit for the last time returns the criterion to confirm control reception of the intermediate control unit. Since, by the initial transmission of length data, a quantitative amount of information transmitted is stored both in the intermediate control device and the central control device, this makes it possible to control the transmission of information. If, after transmitting one of the partial information, an acknowledgment signal from the central unit is not transmitted to the intermediate control device, the latter triggers an alarm signal after a certain time. I The alarm is also issued when the central control unit reads the write or block criteria instead of the expected criterion, without some number of partial information that shows the ways to give length indications. In one of the two previous cases, little information is required from the central control unit, and in the other case, little information is given to it. As with the information, commands are transmitted in a similar manner from the central control unit to the intermediate control unit. As already explained, the intermediate control device, I ready to receive commands, prepares 29 criteria to write to the functional circuit 23 via the functional circuit. Since now the central control unit as described above through the connection unit 20 gives a push to the corresponding intermediate control unit to connect the electrical circuit 3, it accepts the write criterion. It can be assumed that it accumulates a certain command for the intermediate control device. The central control unit now sends, through the functional circuit 22, a confirmation signal is received 30 to the transit control time control circuit 42 of the intermediate control unit. This circuit, through the valve 38, causes the functional circuit 41 to be turned on for the first Byte from the central control unit via the functional circuits 25 and 44. The central control unit receives the length-indicating data from the distributor and stores them. As soon as the transit time control circuit 42 receives the acceptance confirmation criterion, it disables the write criterion. Then the intermediate device will process the length reading data, after a step), a stepwise impulse is given to the distributor 38, which switches one step. Therefore, the circuit 42 again includes the write criterion. The write criterion causes the central control unit to send only the address to the intermediate control unit via the electric circuit 3 instead of the length data. The central control unit, besides Toix), sends to the interim control unit 42 of the intermediate control unit the acceptance confirmation, under which it through the distributor 38 causes the functional circuit 39 to be switched on passable for the second Ryte from the central control unit and 44. This is a Byte, which contains the address or a part of it, is wired by the code converter 31 and is transmitted to the identifier 16 through the function circuit 40. Moving information from the code converter 31. The identifier .16 through the control matrix of the coordinate form causes the relay, for example, 17, for the control contact, for example, to be turned on, indicated by the address. Similarly, using criteria to write and acknowledge are received sequentially through functional circuits 45 and 46, Bytes are received containing the transmitted commands, and in the partial accumulators 13e-13p the command memory 13 is also accepted and intermediately stored. The central control unit causes the corresponding intermediate control device to be disconnected from the electric circuit 3 again via the connection device 20 as described above. I The command stored in the memory device 13 is transmitted to the receiving switch via multiple informational strings 12 by means of a parallel code transmission device 19 individual switching device. For a Byte of information or an order containing an address, the code converter 31, in conjunction with the identifier, is a memory memorization and conversion tool mentioned at the beginning of the description of the example. In defining subsequent Bytes and words containing information or an order, an information accumulator 15 or a command storing device 13 is a device for storing and transforming codes described above; Recoding may be limited by a parallel serial transfer code and, conversely, together with an intermediate reference can form one common process. The coder 3 of codes on its side facing the functional circuit 25 has switching means for receiving and transmitting. The same is valid for the storage device 15 and for the command storing device 13. In addition, it is possible, in addition to the criteria to read, write and confirm reception, to introduce additional criteria between the central control device and the operating field control device and vice versa , ensure that the transfer of Bytes begins, goes and ends with their help. The subject matter of the invention is 1. A communications system, nanpiwep telephone, with central control, comprising a central control device connected to an intermediate control device with information and command accumulators and code converters using electronic switching means, as well as individual switching devices, for example switching, associated with an intermediate control device by means of electromagnetic switching means, about}, and with the fact that, in order to coordinate the transmission rate, between central and lateral control device and an intermediate control device on the one hand and between individual switching devices and an intermediate control device on the other, the central control device is connected to Intermediate 1: the communication bus control device, and the individual switching devices They are used with an intermediate Tins control unit. 2. The system according to claim 1, wherein the information storage devices of the intermediate control device are combined in i-pyiiiiu in accordance with combinations of binary code elements. 3.System but item i 1, which is different from rem, that the intermediate control unit is assigned to the number of ip formations.

The address of the individual device for which it is intended is the following information.

1