摘要:
In an electrical device, in which the load is supplied by a battery cascade, the voltages of the batteries of the battery cascade must be measured with high precision in order to start charge equalization and prevent undervoltages or overvoltages, wherein if possible favorable components should be used simultaneously. This problem is solved in that a circuit arrangement having a battery cascade is proposed, comprising a first battery (A1), the negative pole of which has a ground potential (GND), a second battery (A2), the negative pole of which is coupled to the positive pole of the first battery, and further comprising a capacitor (C1), which on the first side thereof is coupled to the positive pole of the first battery by way of a resistor (R1) and with the second side thereof can be applied to the ground potential (GND) by way of a first switch (S1). Furthermore, the positive pole of the second battery (A2) can be coupled between the resistor (R1) and the capacitor (C2) by way of a second switch (S2). The capacitor (C1) can be charged to the voltage (V1) of the first battery and only the differential voltage between the entire battery cascade and the capacitor (C1) must be measured.
摘要:
The invention concerns a packaging for an object (4), where the packaging protectively encloses the object (4) on one surface and the adjacent other surfaces. The packaging displays the form of a flexible protective covering (1) open on one end, which can be slipped over object (4). In its edge and corner portions, protective covering (1) is to be provided with shock-absorbing fittings (3) of a predetermined thickness, so that these installations serve an alignment or adjustment function during application of the protective covering (1) to the object (4).
摘要:
Small portable device for pre-stressing and holding replacement strings for a musical instrument, comprises a beam part along which the strings extend and to one end of which they are fastened. The other end of the beam part has manually operable string attachment and draft keys, for tensioning the strings the desired amount. The beam part has frets spaced with relation to the diapason of the musical instrument, to aid in tuning the replacement strings to the necessary pitch.
摘要:
An electronic circuit including a first electronic sub-circuit having an operating voltage that is higher than a supply voltage provided by a voltage source, and a second electronic sub-circuit that is coupled to the voltage source and to a first voltage input of the first electronic sub-circuit. The second electronic sub-circuit includes a short-time voltage boosting circuit that is adapted to provide a voltage at the first voltage input for a period long enough to enable a start-up of the first electronic sub-circuit when the short-time voltage boosting circuit is triggered and a controllable voltage boosting circuit that is adapted to provide a boosted voltage at the first voltage input. The controllable voltage boosting circuit is coupled to a control output of the first electronic sub-circuit to receive a control signal, and the period the short-time voltage boosting circuit provides a voltage at the first voltage point is long enough to start the control of the controllable voltage boosting circuit by the first electronic sub-circuit.
摘要:
The invention relates to a method for producing a time base for a microcontroller and a simple circuit arrangement therefor, which comprises an RC-element having a specific time constant, said element being connected to a connection of the microcontroller. According to said method, the capacitor of the RC element is charged to an initial voltage in a first step, then in a second step, the number of timed impulses is counted until the voltage on the capacitor falls below the initial voltage to a determined percentage of the initial voltage or a voltage threshold value, and then in a third step, the counted number of timed impulses is used as a time base.
摘要:
A method and a system for transmitting data by means of a first data network (1) have first means for transmitting data in at least one first transmission cycle, the first transmission cycle being subdivided into a first area (4) for transmitting real-time-critical data and a second area (5) for transmitting non-real-time-critical data, and by means of a second data network (2) having second means for transmitting data in at least one second transmission cycle, the second transmission cycle being subdivided into a third area (7) for transmitting real-time-critical data and into a fourth area (8) for transmitting non-real-time-critical data, and with a switching unit (13) for transmitting real-time-critical data of the first area into the third area.
摘要:
The invention relates to a synchronous clocked communication system, for example a distributed automation system, the stations of which can be arbitrary automation components and which are coupled to one another via a data network. Using the disclosed method for integrating decentralized input/output modules, these decentralized input/output modules can be linked into the synchronous clocked communication system in such a manner that they can use their characteristics unrestrictedly. Thus, in particular, the detection of input signals and the output of output signals is possible in a deterministic and synchronous manner in the decentralized input/output modules. In addition, the disclosed method enables input signals to be detected with an accuracy of less than the length of one communication cycle of the communication system and to support the switching of output signals in smaller time granularities than the length of one communication cycle which, in particular, finds use, e.g. for switching cams.
摘要:
A distributed automation communication system, in particular a real-time critical, cyclic, real-time Ethernet system, which has a plurality of users. Each user has at least one diagnostic unit (7, 8, 15) for the diagnosis and recording of data concerning the data exchange between users. In addition, the communication system (1) has a further user embodied as a central diagnostic terminal (13). The central diagnostic terminal (13) carries out a central diagnosis of the whole communication system (1) by configuration of the diagnostic units (7, 8, 15) of the users and calling up and analyzing the diagnostic data recorded by the diagnostic units (7, 8, 15) of the users.
摘要:
A network proxy can be provided as a layer between an application layer protocol (such as the Remote Desktop Protocol) and a transport layer protocol (such as TCP). The network proxy can intercept communications between the application layer protocol and the transport layer protocol. The network proxy can transmit communications on multiple connections, without the application layer or transport layer protocols being aware of the parallelization.
摘要:
A sensor system comprises a tag. The tag comprises at least one radio-frequency chip and a first antenna. The chip comprises a memory element, the memory element comprising electrical storage of a binary coded word comprising at least one bit, and output terminals. The tag further comprises at least one conductive polymeric system disposed in electrical communication with at least one output terminal of the chip and adapted to change electrical state in association with a predetermined change in an environment of the conductive polymeric system. The first antenna is disposed in electrical communication with the output terminal(s) of the chip and the conductive polymeric system.