Method for serial addressing by leading device of following devices in networks with bus topology with one leading device of network and several following devices

FIELD: technology for serial addressing of following devices in networks with bus topology with one leading device of network and several following devices, possible use primarily for querying devices, used for automation of technological processes.

SUBSTANCE: method for serial addressing by leading device of following devices in networks with bus topology with one network leading device and several following devices includes receipt by following devices of flush impulse, of information about address from leading device, comparison of received information about address by each following device with its own address and switching of one following device to data transfer mode if information received about address matches its own address. As information about address, received by following device, number of addressing impulses is used, and during transfer of one following device to data exchange mode other following devices are maintained in active mode.

EFFECT: decreased addressing time during serial querying of all following devices in the network.

1 dwg

 

The invention relates to the sequential addressing of the slave devices in the network with bus topology with one master network device and multiple slave devices and can be used mainly for serial polling devices used in automation of technological processes.

A known method of addressing of the slave devices in the network with bus topology with one or more leading network devices and multiple slave devices in the interface i2with, namely, that after setting the starting state is exercised by the receiving slave device address information consisting of 7 or 10-bit data from one master device and comparing the received information of all slave devices with a private address of each slave device. The coincidence of the received address with its own address slave device generates an acknowledge bit. When the transmission of 7-bit data master device, taking into account the reserved combinations, may be addressed only to the slave device 112, when transmitting 10 bits to 1024 slave device. The number of pulses in the transmission 7 data bits is 8, and when the transmission of 10-bit data is 16 (Huk M Hardware interfaces PC. The encyclopedia. - SPB.: Peter, 2002. - 528 S., S. 421-427).

The main disadvantages of OPI what these ways are narrow features, since the maximum number of addressable slave devices is 112 or 1024, and for a long time addressing in relation to the entire communication time between the master and the slave device due to the large number of pulses required for addressing the slave device 8, or 16.

The closest to the technical nature of the claimed method (prototype) is a method of addressing the master device slave device in the MicroLAN networks with bus topology with one master network device and multiple slave devices, namely, that after generating the master device of the reset pulse generation slaves presence pulse and generating the master device commands network layer, consisting of 8 bits, perform the receiving slave device address information from the host device, comparing the received address information of each slave device with its own address. As the address information received by the slave device uses 64 bits of data. Slaves transferred to the state of rest, in which they remain until the next reset pulse, if the address did not match. The coincidence of the received information with its own slave address of the device to produce a transition in the mode osmandanime (MicroLAN. A new concept of building a 1-wire network. The English translation of the article almanac "Promising product, Issue 2"; Dodeca 1996, p.23-42).

The disadvantage of this method is the large loss of time required to address a specific slave device, comprising 15-30% of the total time of data transmission due to the large number of pulses required for addressing the slave device 72. Especially not rationally using the prototype method in cases when the host device alternately applies to all slave devices on the network. Namely, such polling is used in most DCS and other control and measurement systems, which include, for example, the alarm system.

The invention solves the problem of reducing the time addressing the sequential polling of all slave devices on the network.

To achieve the technical result in the consistent way of addressing the master device slave device in the network with bus topology with one master network device and multiple slave devices, comprising obtaining slaves of the reset pulse, the address information from the host device, comparing the received address information of each slave device with its own address is the transition from one slave device in the communication mode, the coincidence of the received information about the address with its own address, as the address information received by the slave device uses the number of addressing pulses, and when the transition from one slave device in the communication mode, the remaining slave devices support active mode.

Reducing the time addressing the sequential polling of all slave devices on the network provide due to the fact that instead required for addressing the slave device 72 pulses in the prototype use the same addressing pulse.

The proposed method of sequential addressing, the master device slave device in the network with bus topology with one master network device and multiple slave devices illustrated in the drawing, which shows a timing diagram of the communication master device to slave devices in the coordinates on the horizontal axis is time, vertical axis is voltage.

Additionally, the drawing shows the following:

1 - pulses issued by the master device;

2 - pulses issued by the first slave device;

3 pulses issued by the second slave device;

4 pulses issued by the n-th slave;

5 - all pulses issued on the bus.

The method of sequential addressing, the master device slave device in the network with bus topology and one leading CE device and several slave devices as follows. Leading network device and all slave devices use the standard predetermined speed transmit and receive information using the same communication Protocol. When this synchronization of exchange between them is automatically set by reset pulse 6 and addressing pulses generated by the master device. All slaves receive information about the address, which use the number of addressing pulses coming from the host device after a fault pulse 6. Addressing pulses differ from the other pulses. All slave devices compare the received message with its own address of each slave device. The coincidence of the received information about the address with its own address one of the slaves of the latter generates a start pulse, which informs the host device of the presence of the slave devices with the same address on the bus, and translate this slave device is in data exchange mode. At the same time when the transition from one slave device in the communication mode, the remaining slave devices support in active mode. After the implementation of the master device poll all slaves in the network, the master device generates a repeated reset pulse 7.

Example. On the Les obtaining fault pulse 6 all slave devices count the addressing pulses. After the adoption of the first addressing pulse 8 the first slave device generates a start pulse 9, confirming its presence in the network, and begin the exchange of data 10 from the master device. While all the other slave devices, in contrast to the method, selected as a prototype, not go in peace, and continue to monitor the condition of the tire. After an exchange of data 10 with the first slave device master device to exhibit the following addressing pulse 11 and thus address the second slave device. The subsequent issuance of addressing pulses address all other slave devices. When you have finished the survey with all slave devices, the master device again generate a reset pulse 7, and the polling cycle of the slave devices is repeated.

Each slave device works according to the same scheme. Upon receipt of the reset pulse 6 it resets the counter to zero addressing pulses and enters active mode observation of tires. When receiving addressing pulse each slave device adds to the counter addressing pulse unit. The coincidence counter with the address of the slave device leads to the addressing device and transfer it to the data exchange mode. The address is recorded in each slave device in advance when mounting network.

When the proposed method is consistent addressing the master device slave device in the network topology "common bus" and architecture with one master device bus and several slaves" time addressing is not 15%-30% of the total transfer time, and not more than 0.5%-1%.

The method of sequential addressing, the master device slave device in the network with bus topology with one master network device and multiple slave devices, comprising obtaining slaves of the reset pulse, the address information from the host device, comparing the received address information of each slave device with its own address and the transition from one slave device in the communication mode, the coincidence of the received information about the address with its own address, characterized in that as the address information received by the slave device uses the number of addressing pulses, and when the transition from one slave device in the communication mode, the remaining slave devices support in active mode.



 

Same patents:

FIELD: electric engineering and communications engineering, in particular, phone networks, used by various operators, concerns particularities of constructive realization of devices for mounting and connecting broadband filters, meant for replacing common connection node for connecting electronic board of filter with appropriate layout by one stripe with closed contacts.

SUBSTANCE: in accordance to invention, electronic boards of broadband filters, preferably, are separate electronic boards for one user, thus making it possible to mount one after another separately on contact stripe with increase of number of users. Connecting device for mounting and connecting broadband filters, including capability for connecting electronic boards of filters to layout, contains contact strip 8 with closed contacts, which directly receiver electronic board 1' of filter, while aforementioned contact strip 8 connects closed contacts to layout 7 in small frame 5' or in area, meant for adjacent distributors before horizontal distributors.

EFFECT: simplification of mounting and connecting operations, mainly in area, assigned to broadband filters or splitters, with simultaneous decrease of device dimensions and monetary costs.

4 cl, 4 dwg

FIELD: engineering of equipment for transferring controlling information, concerning resources for packet data transfer along separate connections during radio communication with commutation of packets and with mating between transferring device and receiving device.

SUBSTANCE: problem is solved by execution of procedure, in which one and the same channel is utilized for controlling ascending communication line for transferring control information of ascending communication line, which is related, at least, to two temporary block streams of descending communication line, and also, preferably, by means of inclusion into control information of message of ascending communication line about which temporal interval of descending communication line transfers temporary block stream connected to it, assuming that channel for controlling ascending communication line uses temporal interval of ascending communication line, with which one-rank temporal interval of descending communication line(i.e., with the same number of temporal interval) is not utilized by appropriate temporary block stream and by inclusion into control information of messages of descending communication line about which control information of temporal interval of ascending communication line is transferred in accordance with certain temporary block stream.

EFFECT: provision of utilization of more than one temporary blocks stream and temporal interval for packet data transfer in one direction of data transfer along ascending/descending communication line.

3 cl, 9 dwg

FIELD: device and method for addressing and/or routing in wireless cell communication system.

SUBSTANCE: method includes adding to packet being transmitted of address information of protocol level being lower than network level, which information points out geographical position of destination node, to which packet can be routed, and this address information may change during routing of aforementioned packet through wireless communication network; difference between information about geographical position of wireless router or node being the source of packet transfer, and information about geographical position of aforementioned destination node, is determined, and aforementioned packet is transferred inside wireless com network to aforementioned destination node completely on aforementioned lower level through neighboring node, having closest position and direction relatively to aforementioned destination node, while aforementioned neighboring node is selected on basis of certain difference.

EFFECT: engineering of system for addressing and/or routing in wireless cell network, providing changing of address and nodes of routing in operative mode.

3 cl, 6 dwg

FIELD: network control; data acquisition on network topology.

SUBSTANCE: message requesting data acquisition on network topology that incorporates field limiting number of operations for message transfer from local station to adjacent ones is sent and following steps are repeated: request message receiving station returns response message and network topology data acquisition device finds out if number of message transfer operations has reached certain threshold value and terminates process if it is so, otherwise it sends request message to all adjacent stations.

EFFECT: facilitated procedure, reduced number of control errors.

7 cl, 2 dwg

FIELD: communications engineering, namely, a system and method for controlling transfer of information, actually being a scanning of one or more blocks of protocol data in wireless communication system.

SUBSTANCE: in the method for controlling transmission of signals in communication system, scanning trigger is utilized, which prevents occurrence of dead-end situation between transmitter and receiver, while the method includes: selecting of protocol data block from buffer, determining, whether data block is positioned on the last position in transmission window, and then, dispatching information, actually being a scanning, with data block, if the data block is on the last position in transmission window, then additional operations of method are performed, including determining, whether data block is the last data block, stored in transmission buffer, and if so, then information is dispatched with data block, actually being a scanning, and if there is no scanning trigger, then data block is dispatched.

EFFECT: increased speed of operation, efficiency and quality of communication in mobile communications system.

4 cl, 11 dwg

FIELD: computer networks engineering.

SUBSTANCE: access point device is made with possible receipt of data packets from one or more client devices and possible transmission of these along network of undefined localization level. Access point device contains a protection device, made with possible configuration of client data packets, to direct them only to one or several allowed devices of network of undefined localization level regardless of original destination of data packets.

EFFECT: improved control and monitoring of access to and usage of network.

8 cl, 2 dwg

FIELD: phone communications engineering.

SUBSTANCE: device contains peripheral devices of local network and server, containing hardware and software for analog-digital conversion and digital-analog conversion of phone signals to data packets and vice versa, for detecting packets of data, related to phone communication, for priority transmitting of data packets to addressed phones, for automatic shifting of phone transmissions from phone network to users by local network phones and vice versa, for integrated control over messages with multimedia content, for performing typical functions of automatic exchange and additionally for automatic selection of most efficient operator and mode of phone connection in function of phone service cost parameters and statistical parameters, related to usage of phone services by each user of local network phone.

EFFECT: creation of device for integration of phone transmissions and data transmissions through local network with automatic selection of telecommunication service operator providing for most efficient connection mode.

2 cl, 10 dwg

FIELD: technology for data transmission in communications system, possible use for controlling stream of data in transmission network between end communication device, connected through gate or via communication equipment.

SUBSTANCE: method and system SYS for controlling data flow DAT in data transfer network WWW between at least two terminal communication devices TEA, TEB, which are connected through at least one access server AAA, AAB to data transfer network WWW, while by means of authentication server AAA, AAB when control is necessary, data flow DAT between terminal devices TEA, TEB is routed through control server PRO, which generates a copy of data flow DAT and sends it to estimation block ASW.

EFFECT: possible control over data flow.

2 cl, 4 dwg

FIELD: mobile electronic commerce.

SUBSTANCE: method for realization of wireless operation, includes receipt by control system of order for operation and spoken authentication code from operation client. After authentication of spoken authentication code, operation code is transferred from system for controlling operations to wireless communication system. Then code of operation is optically scanned from video terminal of wireless communication device for providing ordered commercial operation.

EFFECT: increased comfort of commercial operations in wireless electronic commerce network with assured safety of said operations.

3 cl, 11 dwg

FIELD: mobile electronic commerce.

SUBSTANCE: method for realization of wireless operation includes placing an order for operation from wireless communication device to operation device and transfer of spoken operation authentication code from wireless communication device to operation device. After authentication of spoken authentication code wireless communication device receives code of operation. After receiving operation code, operation code is displayed on video terminal of wireless communication device and optically scanned from it for providing a legal commercial operation.

EFFECT: increase comfort of commercial operation in wireless electronic commerce network while providing for safety of said operations.

3 cl, 11 dwg

FIELD: optical communications.

SUBSTANCE: first, administrative information of subnet device, made by manufacturer, who is not SDH devices manufacturer, included in base net, in given area of structure of frame of synchronous transfer mode (STM-N), and then said structure of frame STM-N is sent to base net device, connected to noted subnet, with following transfer of frame structure through said base net into device of destination subnet. Using this method, administrative information of SDH devices of multiple manufacturers can be conveyed while using code-independent transfer mode through SDH devices of certain manufacturer.

EFFECT: higher reliability.

8 cl, 4 dwg, 1 tbl

FIELD: mobile communications.

SUBSTANCE: radio network controller determines maximal delay time and sends data to assembly B and user equipment. Assembly B receives maximal delay time and sends data to client equipment; repeatedly sends data and at the same time sets maximal delay time for detecting query from client equipment for repeated data transfer; prevents repeated data transfer after detecting second query from client equipment for repeated data transfer, being a result of incorrect receipt of repeatedly sent data, after passing of maximal delay time. Client equipment receives maximal delay time; transfers a query to assembly B for repeated data transfer and at the same time sets maximal delay time, if there is an error in data received from assembly B; awaits repeatedly sent data only during maximal delay time.

EFFECT: prevented cases of unnecessary repeated transfer.

6 cl, 6 dwg

FIELD: radio communications.

SUBSTANCE: radio network controller sends value of power deviation for controlling power of transfer of high-speed dedicated physical control channel of ascending communication line, when user equipment enters service transfer zone, in cell communication system, containing radio network controller, assembly B, connected to said controller and user equipment, being in one of at least two cell nodes, occupied by assembly B. assembly B sends data to user equipment via high-speed jointly used channel of descending communication line and user equipment transfers data, notifying about data receipt state, to assembly B along ascending communication line. Controller sends to user equipment a value of deviation of power to determine transmission power adjustment for ascending communication line, if it is determined, that user equipment is within limits of service transfer zone. Controller sends to assembly B value of power deviation, to allow assembly B to determine threshold value for data determining, noting data receipt state, dependently on power deviation.

EFFECT: high-speed data delivery to user equipment.

5 cl, 31 dwg, 4 tbl

FIELD: telephone communication systems combined with other electronic systems.

SUBSTANCE: proposed telephone communication system that can be used for voice communications between subscribers of local telephone networks by means of public computer networks has telephone set, local telephone communication line, interface unit, analog-to-digital converter, signal distributor, voice identification device, voice-frequency dialing identification device, pulse dialing signal detector, identified number transmission device, coder, compressor, computer, public computer network, decompressor, decoder, voice recovery device (voice synthesizer), called number information converter, voice and called signal transfer queuing device, and digital-to-analog converter.

EFFECT: enhanced quality of servicing subscriber using public computer network; enlarged functional capabilities of system.

1 cl, 1 dwg

FIELD: data package transmission in mobile communication lines.

SUBSTANCE: device for controlling data package transmission in mobile communication line, which has base receiving-transmitting system (RTS) provided with buffer for storing data packages to be transmitted to mobile station, has base station controller (BSC) for comparing size of RTS buffer with number of non-transmitted data packages after data packages are received from common use data transmission commutated circuit (CUDTCC). Non-transmitted packages have to be packages which have been transmitted from BSC to RTS but still haven't been transmitted from BSC to RTS. Transmission of data packages is performed if size of buffer exceeds number of non-transmitted data packages.

EFFECT: prevention of overflow of internal buffer of base receiving-transmitting system; prevention of efficiency decrease caused by next cycle of data package transmission.

19 cl, 15 dwg

FIELD: telecommunications; construction of burst-switching distributed communication systems (networks).

SUBSTANCE: proposed burst-switching distributed communication system meeting all advanced requirements to data transmission and designed for use in megapolises and in densely populated regions (cities) has junction stations disposed at locations of most densely crowded subscriber terminals; each junction station is connected to at least four adjacent junction stations via fiber-optic lines forming network architecture in the form of reference grid; each junction station has transceiving junction point connected to fiber-optic lines and to channel-forming junction point; the latter is connected to direction switching junction point, information service switching junction point, and trunk-communication switching junction point, subscriber communication junction point being connected to these junction points and via subscriber lines, to subscriber terminals; direction switching junction point similar in design to information service switching junction point and to automatic trunk communication switching junction point has transit junction point connected to channel-forming junction point and to subscriber junction point; direction comparison unit connected to channel-forming junction point, subscriber junction point, and direction address memory unit; and also control unit connected to transit junction point, direction address memory unit, and comparison unit; junction stations disposed near mobile communications base stations have their channel-forming junction points connected by means of fiber-optic line to mobile communications base station; junction stations residing near trunk exchanges have their channel-forming junction points connected by means of fiber-optic lines to trunk exchanges, and junction stations disposed near information service rendering junction points have their channel-forming points connected by means of fiber-optic line to information service rendering junction point; junction stations residing near telephone exchanges have their channel-forming junction points connected via fiber-optic lines to telephone exchange; channel-forming junction point has at least three channel-forming units and transceiving junction point has at least three transceiving units, each being connected through at least four fiber-optic communication lines to junction stations adjacent with respect to reference grid.

EFFECT: enhanced effectiveness and reduced cost of broadband communication system due to its minimized proximity of subscriber terminals.

3 cl, 3 dwg

FIELD: communications engineering.

SUBSTANCE: proposed device and method are used for voice frame/ data frame transmission in mobile communication system supporting ALL-IP network.Mobile phone sends heading information using synchronization frame and then separately transfers voice frame only; communication center B detects heading information in synchronization frame received, memorizes detected heading information, and upon receiving voice frame adds heading information to voice frame and transfers voice frame with added headings to base network.

EFFECT: provision for preventing addition of headings to traffics in mobile communication line.

39 cl, 7 dwg

FIELD: transmission of information in the form of files over data transfer networks or in the form of data files stored in physically transportable data storage means.

SUBSTANCE: information in the form of data files is classified using unique data classification key for each data file; data-file transfer priority protocols are generated around priority matrix that has items formed by combinations of chosen criteria values specified for transmission. Each classified data file is assigned at least one priority protocol chosen among protocols generated around classification key for data file. This protocol specifies conditions chosen for data file transmission. Communication channels are chosen for transmission basing on priority protocol assigned to data file, information access being given in one of three modes.

EFFECT: enhanced effectiveness of access and use by terminal information user.

24 cl, 4 dwg, 5 tbl

FIELD: data transfer networks, in particular Ethernet-based.

SUBSTANCE: device is made in form of multiple individually programmed single-port communication modules for access to common distributor bus 10, while each single-port communication module has: programmed micro-controller 1, made as access control block for transmitting environment Ethernet (MAC), containing processor with short command list (RISC CPU), and logic device 5 for distribution of data frames, including processing in real time scale and transmission to addresses frame destination ports of Ethernet data, received on said one-port communication module, transfer process is serial and is performed in save-and-send mode.

EFFECT: higher data distribution flexibility control.

2 cl, 7 dwg

FIELD: data transfer networks, in particular Ethernet-based.

SUBSTANCE: device is made in form of multiple individually programmed single-port communication modules for access to common distributor bus 10, while each single-port communication module has: programmed micro-controller 1, made as access control block for transmitting environment Ethernet (MAC), containing processor with short command list (RISC CPU), and logic device 5 for distribution of data frames, including processing in real time scale and transmission to addresses frame destination ports of Ethernet data, received on said one-port communication module, transfer process is serial and is performed in save-and-send mode.

EFFECT: higher data distribution flexibility control.

2 cl, 7 dwg

Up!