Method for transmitting data from at least one sensor to a control unit
First Claim
1. A method for transmitting data from at least one sensor to a control unit, a respective two-wire line being used for each sensor for unidirectionally transmitting the data on a first wire and for receiving current on a second wire, whereby a unidirectional two-wire current interface is provided, the method comprising:
- receiving, by the at least one sensor, electrical energy from the control unit via the second wire of the line, the electrical energy being electrical energy necessary for operation of the at least one sensor; and
continuously and unidirectionally transmitting by the at least one sensor, a sensor identification, a status identification, and sensor values as data on the first wire of the line to the control unit after receiving the electrical energy.
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Accused Products
Abstract
A method for transmitting data from at least one sensor to a control unit via an appropriate two-wire line is described. The method is used to identify any sensor at the control unit and to implement a plurality of logical channels via the appropriate two-wire line. The at least one sensor receives the necessary electrical energy from the control unit via the two-wire line and then transmits the sensor-specific data.
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Citations
11 Claims
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1. A method for transmitting data from at least one sensor to a control unit, a respective two-wire line being used for each sensor for unidirectionally transmitting the data on a first wire and for receiving current on a second wire, whereby a unidirectional two-wire current interface is provided, the method comprising:
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receiving, by the at least one sensor, electrical energy from the control unit via the second wire of the line, the electrical energy being electrical energy necessary for operation of the at least one sensor; and
continuously and unidirectionally transmitting by the at least one sensor, a sensor identification, a status identification, and sensor values as data on the first wire of the line to the control unit after receiving the electrical energy. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for transmission of data, comprising:
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a control unit; and
at least one sensor, each of the at least one sensor connected to the control unit via a two-wire line allocated to the sensor, a first wire of the line supplying current to the at least one sensor;
wherein the control unit includes at least one of a receive module configured to receive data from the at least one sensor, and a sensor transmit module configured to transmit the data to the control unit, the data including a sensor identification, a status identification, and sensor values, the at least one sensor configured to continuously and unidirectionally transmit the data on a second wire of the line after receiving energy necessary for operation of the at least one sensor from the control unit via the first wire of the line. - View Dependent Claims (11)
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Specification