Abstract: A system, apparatus and method for efficient utilization of available band-width on the system's bus connection. The system includes a scheduler configured to receive a virtual schedule that provides at least one slot for sending a message over the communication bus and to confirm a trigger condition. A module is configured to send a message over the communication bus when the trigger condition is confirmed.

Abstract: A system for controlling, monitoring, communicating, etc. comprising a plurality of module units. The system further comprises at least one connection facility comprising a first contact unit and a second contact unit. The first contact unit connects at least one of the plurality of module units to a system connection. The second contact unit is configured to communicate information via the system connection using a first protocol and to communicate information with the at least one module unit using a second protocol. Individual ones of the second contact units further comprise at least one processing device configured to convert information in the first protocol to information in the second protocol for the at least one module unit, the at least one processing device configured to convert information in the second protocol to information in the first protocol for the distributed system.

Abstract: A system and arrangement for correlating time in different time bases used by interconnected units by timestamping a reference event with a time determined with respect to a first time base. A message unit provides the time to a second interconnected unit that uses a second time base. A translation device is configured to calculate a difference between the time measured by the first time base and in the second time base. The difference is used to translate a time measured by the first clock to a time in a different time base at run time.

Abstract: A system, apparatus and method for efficient utilization of available band-width on the system's bus connection. The system includes a scheduler configured to receive a virtual schedule that provides at least one slot for sending a message over the communication bus and to confirm a trigger condition. A module is configured to send a message over the communication bus when the trigger condition is confirmed.

Abstract: There is a need for increasing the availability of data and/or control commands in a distributed control system for one or more machines, vehicles and/or processes. The control system comprises or is controlled by a transmitting node or transmitter unit and has two or more receiving nodes. The transmitting nodes and receiving nodes are connected to each other via wireless radio links. The receiving nodes are located at a distance from each other and are connected to a few-wire digital link in a wired system for forwarding of the said data and/or control commands to the executing devices. The control node transmits the said data and/or the control commands in different directions towards the receiving nodes which are arranged at a distance from each other. Receiving nodes with reception that is essentially not subject to interference are arranged to be able to connect to the few-wire link in parallel and simultaneously with a receiver unit or units which have links that are connected to the few-wire link.

Abstract: A method and arrangement for correlating time in different time bases used by interconnected units by timestamping a reference event with a time determined with respect to a first time base. A message unit provides the time to a second interconnected unit that uses a second time base. A translation device is configured to calculate a difference between the time measured by the first time base and in the second time base. The difference is used to translate a time measured by the first clock to a time in a different time base at run time.

Abstract: A system, apparatus and method for making possible more efficient utilization of available band-width on the system's bus connection between, from and/or to modules incorporated in the system and/or reduction of accuracy requirements for clock functions utilized in the system. The system comprises at least one of a plurality of modules that further comprise at least one actual clock. The at least one module further comprises a scheduler coupled to the at least one clock, wherein the scheduler is configured to receive a virtual schedule comprising a time slot for sending a message to the communication bus. The scheduler is further configured to determine an actual time for sending a message in relation to the virtual schedule and according to time kept in the at least one actual clock. The module is configured to send a message according to the actual time, wherein the module starts transmission of the message according to the actual time.

Abstract: A first unit (200, 303, 304) works with analog and digital signals in physical sequences referring to one or several measurement objects (200?, 305, 307), which work with one or several functions (200?, 211, 302, 308, 309) and detectors (201, 202, 205) and/or control devices (212/214) detecting these functions. A distributed control system (206) works with a first protocol (218). The first unit (200) is connected to the control system (206) and is arranged, through its compatibility with the first protocol (218), to receive and/or send messages from/to the control system. The first unit (200) receives and sends physical signals for measurement and/or control of various types and combinations of functions and/or detectors or control devices, and processes the physical signals. The first unit is connected to a second connection (209) working with a second protocol (418). The second connection is in a link in a tool arrangement.

Abstract: A system for controlling, monitoring, communicating, etc. comprising a plurality of module units. The system further comprises at least one connection facility comprising a first contact unit and a second contact unit. The first contact unit connects at least one of the plurality of module units to a system connection. The second contact unit is configured to communicate information via the system connection using a first protocol and to communicate information with the at least one module unit using a second protocol. Individual ones of the second contact units further comprise at least one processing device configured to convert information in the first protocol to information in the second protocol for the at least one module unit, the at least one processing device configured to convert information in the second protocol to information in the first protocol for the distributed system.

Abstract: A device suitable for use as a module in a Controller Area Network (CAN) system with a bus or connection includes relatively simple and inexpensive components, including an oscillator that generates a number of different frequencies in response to directions from a microcomputer. A CAN Controller receiving the frequencies is connected to the bus via a transceiver. The device has utility for verification and validation work in association with a CAN system.

Abstract: A device for a modularized system with decentralized and function-executing modules comprising a module with associated clock that is arranged to effect time-stamping of events associated with the system and of reference events selected from among these. The module comprises a memory device for storing the module's time stamps relating to the events noted by the module and to the reference events selected from among these. The module also comprises a microprocessor that generates messages related to the module's stored time stamps. In addition, the module is arranged to transmit the respective generated messages to a time conversion unit via one or more communications links, and the time conversion unit is arranged, after any intermediate storage, to relate the module's respective noted reference event and effected time-stamping to additional reference events and time-stamping introduced into the unit or already in the unit.

Abstract: An arrangement for a system for controlling, monitoring, communication etc. comprises locally deployed module units which each perform one or more local function(s). The system also comprises one or more system-functioning-determining unit(s) at a higher level than said module units. Also included are one or more connection(s) connecting said units. Each module unit is connected to the connection concerned via a connection facility or connection point. The facility or point comprises one or more microprocessor(s) (microprocessor setup(s)) arranged with compatibility with signalling appearing on the connection according to the rules of systems engineering which apply, and with a higher-level function in relation to the module unit. The invention also relates to a method for said system and a contact arrangement for connection of a module unit to the connection.

Abstract: An arrangement and a device comprises a mobile data and communication network within a predetermined geographical area. The device operates with first and second functions that can consist of, for example, company and/or customers functions and communication and/or slave functions respectively. Two or more units in the first function are synchronized with each other as regards time and frequency in order to act, from the point of view of connection and disconnection functions, as a common first unit for second units that carry out the second function. Time consuming handshaking procedures are then avoided for the second units when these one's are moving and shifting between part areas of said predetermined area and the total system will operate rapidly in this respect.

Abstract: In a CAN system, an arrangement is incorporated for making possible more efficient utilization of available band-width on the system's bus connection between, from and/or to modules incorporated in the system and/or reduction of accuracy requirements for clock functions utilized in the system. The system operates with communication on the bus connection that is in accordance with rules set up in the system and constitutes a combination of event-driven and time-controlled communication functions. The said functions are, together with a rule change in the time-controlled communication function, arranged to achieve the said making more efficient and/or reduction. The rule change is arranged to bring about deliberate collisions between messages appearing on the bus connection. In this way, the bandwidth utilization, the clock function and the system's general construction and function can be simplified according to the requirements imposed.

Abstract: In a CAN system, an arrangement is incorporated for making possible more efficient utilization of available band-width on the system's bus connection between, from and/or to modules incorporated in the system and/or reduction of accuracy requirements for clock functions utilized in the system. The system operates with communication on the bus connection that is in accordance with rules set up in the system and constitutes a combination of event-driven and time-controlled communication functions. The said functions are, together with a rule change in the time-controlled communication function, arranged to achieve the said making more efficient and/or reduction. The rule change is arranged to bring about deliberate collisions between messages appearing on the bus connection. In this way, the bandwidth utilization, the clock function and the system's general construction and function can be simplified according to the requirements imposed.

Abstract: A device suitable for use as a module in a Controller Area Network (CAN) system with a bus or connection includes relatively simple and inexpensive components, including an oscillator that generates a number of different frequencies in response to directions from a microcomputer. A CAN Controller receiving the frequencies is connected to the bus via a transceiver. The device has utility for verification and validation work in association with a CAN system.

Abstract: In a more efficient distributed control or monitoring arrangement there are devices in control, monitoring and/or vehicle systems that comprise locally deployed module units that carry out one or more functions, and one or more links connecting the units. The respective module unit is connected to a link via a connection arrangement or a connection point and requisite communication device for the CAN protocol. A CAN control unit is arranged to receive indication of falling edges on the bus in question, and to carry out measurement of the time between falling edges using clock pulses in its clock function. Information from two or more such measurements forms the basis for calculation of a bit frequency currently used in communication on the bus by active module units connected to the same.

Abstract: A device suitable for use as a module in a Controller Area Network (CAN) system with a bus or connection includes relatively simple and inexpensive components, including an oscillator that generates a number of different frequencies in response to directions from a microcomputer. A CAN Controller receiving the frequencies is connected to the bus via a transceiver. The device has utility for verification and validation work in association with a CAN system.

Abstract: In an arrangement, functions and/or structures in a distributed control system (24) that works with a first protocol (28) are analysed and/or monitored. A first unit (23) is connected or can be connected to the control system, which first unit, due to its compatibility with the first protocol, receives and/or sends task instructions concerning the functions and/or structures. The first unit comprises or is connected to a second (22) and transforms at least those parts in the first protocol that relate to the task instructions concerning the functions and/or structures into a second protocol, by means of which the said tasks can be initiated and/or carried out in a tool arrangement (1) that is comprised in or can be connected to the second unit. This tool arrangement works with the second protocol, whereby primary readings and/or modifications in the first protocol on the basis of the analysis and/or monitoring can be carried out by means of secondary readings and/or modifications in the second protocol.

Abstract: A control or supervision system incorporates a digital serial communication and modules which are mutually communicable to this and operate with CAN-protocol. A control desk can be wirelessly connected to one or more modules operating with a signal protocol which takes no account of arbitration and/or confirmation functions appearing in the CAN-system. A particular receiving communication part executes the conversion of said signal protocol to the signal protocol of the CAN-system. A device for controlling a function in a first module in a CAN-system via a wireless connection to a second module in said system. A system of mutually separate units, whereof each unit operates with a CAN-signalling protocol, intercommunicable by means of radiocommunications operating with an identification system in which a key allocation between the units is based upon identities that are assigned by a module in the unit or a master system.