SYSTEMS AND METHODS FOR VESSEL POSITION REPORTING AND MONITORING

Systems and methods for vessel position reporting and monitoring. Methods and systems for augmenting e-Navigation messages to provide ancillary information, such as a history of previous vessel positions. A compact representation is provided, in which transmitters may select among a plurality of possible position layouts to provide a compact representation. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. 1. A method of transmitting a message that identifies a geographical position , the method comprising:encoding a track history to generate an encoded track history;generating the message comprising the encoded track history; andtransmitting the message.2. The method of claim 1 , further comprising updating the track history based on the geographical position.3. The method of claim 1 , further comprising updating the track history based on course over ground.4. The method of claim 1 , further comprising setting a message type identifier claim 1 , wherein the message further comprises the message type identifier.5. The method of claim 1 , further comprising retrieving a transmitter identifier claim 1 , wherein the message further comprises the transmitter identifier.6. The method of claim 1 , wherein the track history comprises one or more track history points based on prior geographical positions.7. The method of claim 6 , wherein each of the one or more track history points are separated by a preselected time interval.8. The method of claim 6 , wherein each of the track history points is determined with reference to a predetermined point layout that has a plurality of predefined point positions.9. The method of claim 8 , wherein each of the track history points is selected by approximating the position associated with a previous message to one of the predefined point layout positions.10. The method of claim 8 , further ...

Methods and Systems for Enhanced Detection of E-Navigation Messages

Methods and systems for enhancing the detectability of maritime e-Navigation messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted, which are wrapped in a standard e-Navigation message format such as that used by the Automatic Identification System. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages. 1. A transponder for generating and transmitting an e-Navigation signal comprising an e-Navigation message with enhanced detectability , the transponder comprising:a memory; generate a binary payload;', 'encode the binary payload using at least one error protection scheme; and', 'encapsulate the binary payload in a message wrapper to produce the e-Navigation message., 'a processor, the processor configured to2. The transponder of claim 1 , wherein the error protection encoding is selected from one or more of the group consisting of block coding the binary payload claim 1 , convolutional coding the binary payload and interleaving the binary payload.3. The transponder of claim 1 , wherein the at least one error protection scheme is selected from one or more of the group consisting of Low Density Parity Check coding claim 1 , Turbo coding claim 1 , Bose-Chaudhuri-Hocquenghem coding claim 1 , and Reed-Solomon coding.4. The transponder of claim 1 , wherein the error protection encoding comprises joint coding and modulation.5. The transponder of claim 1 , wherein the message wrapper and the binary payload form one or more standards-compliant AIS messages.6. The transponder of claim 5 , wherein each of the one or more standards-compliant AIS messages has a variable length.7. A receiver for recovering message data from an e-Navigation signal claim 5 , wherein the e-Navigation ...

SYSTEM AND METHOD FOR OPERATING AN ENGINE

Methods and systems for operating an engine including an external exhaust gas recirculation (EGR) system are presented. In one non-limiting example, output of a differential pressure sensor and output of an intake manifold pressure sensor are used as a basis for determining whether or not EGR system degradation is present while an engine is operating at conditions other than engine idle conditions. 1. A method for operating an engine , comprising:receiving a differential pressure sensor output and intake manifold pressure sensor output to a controller;judging whether or not exhaust gas recirculation system degradation is present responsive to the differential pressure sensor output and the intake manifold pressure sensor output while operating an engine with intake manifold pressure greater than atmospheric pressure via the controller; andadjusting an actuator via the controller responsive to the judgment.2. The method of claim 1 , where the actuator is a waste gate.3. The method of claim 1 , further comprising converting the differential pressure sensor output to a differential pressure claim 1 , and where the judgement is based on the differential pressure exceeding a second threshold.4. The method of claim 3 , further comprising converting the intake manifold pressure sensor output to an intake manifold pressure claim 3 , and where the judgement is also based on the intake manifold pressure minus a barometric pressure exceeding a first threshold.5. The method of claim 1 , further comprising converting the differential pressure sensor output to a differential pressure claim 1 , and where the judgement is based on an absolute value of the differential pressure exceeding an eighth threshold.6. The method of claim 5 , further comprising converting the intake manifold pressure sensor output to an intake manifold pressure claim 5 , and where the judgement is also based on the intake manifold pressure minus a barometric pressure exceeding a seventh threshold.7. The ...

METHODS AND SYSTEMS FOR ENHANCED DETECTION OF E-NAVIGATION MESSAGES

Methods and systems for enhancing the detectability of maritime e-Navigation messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted, which are wrapped in a standard e-Navigation message format such as that used by the Automatic Identification System. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.

SYSTEMS AND METHODS FOR VESSEL POSITION REPORTING AND MONITORING

Systems and methods for vessel position reporting and monitoring. Methods and systems for augmenting e-Navigation messages to provide ancillary information, such as a history of previous vessel positions. A compact representation is provided, in which transmitters may select among a plurality of possible position layouts to provide a compact representation. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. 1. A method of transmitting a message that identifies a geographical position , the method comprising:encoding a track history to generate an encoded track history;generating the message comprising the encoded track history; andtransmitting the message.2. The method of claim 1 , further comprising updating the track history based on the geographical position.3. The method of claim 1 , further comprising updating the track history based on course over ground.4. The method of claim 1 , further comprising setting a message type identifier claim 1 , wherein the message further comprises the message type identifier.5. The method of claim 1 , further comprising retrieving a transmitter identifier claim 1 , wherein the message further comprises the transmitter identifier.6. The method of claim 1 , wherein the track history comprises one or more track history points based on prior geographical positions.7. The method of claim 6 , wherein each of the one or more track history points are separated by a preselected time interval.8. The method of claim 6 , wherein each of the track history points is determined with reference to a predetermined point layout that has a plurality of predefined point positions.9. The method of claim 8 , wherein each of the track history points is selected by approximating the position associated with a previous message to one of the predefined point layout positions.10. The method of claim 8 , further ...

METHODS AND SYSTEMS FOR ENHANCED DETECTION OF ELECTRONIC TRACKING MESSAGES

Methods and systems for enhancing the detectability of electronic tracking messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages. 1. A method of generating an electronic tracking message with enhanced detectability , the method comprising:generating a binary payload;error protection encoding the binary payload; andencapsulating the binary payload in a message wrapper to produce the electronic tracking message.2. The method of claim 1 , wherein the error protection encoding is selected from one or more of the group consisting of block coding the binary payload claim 1 , convolutional coding the binary payload and interleaving the binary payload.3. The method of claim 1 , wherein an error protection scheme used in the error protection encoding is selected from one or more of the group consisting of Low Density Parity Check coding claim 1 , Turbo coding claim 1 , Bose-Chaudhuri-Hocquenghem coding claim 1 , and Reed-Solomon coding.4. The method of claim 1 , wherein the error protection encoding comprises joint coding and modulation.5. A method of recovering message data from an electronic tracking signal claim 1 , wherein the message data is encoded with error protection encoding claim 1 , the method comprising:receiving input signal data, the input signal data having been produced by demodulating and decoding the electronic tracking signal;identifying a candidate message in the input signal data;extracting a binary payload from the candidate message, the binary payload comprising at least one error protection encoding; anddecoding the at least one error protection encoding of the binary payload to recover the message ...

Methods and systems for enhanced detection of e-navigation messages

Methods and systems for enhancing the detectability of maritime e-Navigation messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted, which are wrapped in a standard e-Navigation message format such as that used by the Automatic Identification System. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.

Methods and systems for enhanced detection of e-navigation messages

Systems and methods for vessel position reporting and monitoring

Systems and methods for vessel position reporting and monitoring. Methods and systems for augmenting e-Navigation messages to provide ancillary information, such as a history of previous vessel positions. A compact representation is provided, in which transmitters may select among a plurality of possible position layouts to provide a compact representation. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance.

SYSTEM AND METHOD FOR OPERATING A MOTOR

Verfahren und Systeme zum Betreiben eines Motors, der ein externes Abgasrückführ(AGR)-System beinhaltet, sind präsentiert. Bei einem nicht einschränkenden Beispiel werden eine Ausgabe eines Differenzdrucksensors und eine Ausgabe eines Saugrohrdrucksensors als eine Grundlage zum Bestimmen, ob eine AGR-Systemstörung vorliegt oder nicht, während ein Motor bei anderen Zuständen als Leerlaufzuständen läuft, verwendet. Methods and systems for operating an engine incorporating an external exhaust gas recirculation (EGR) system are presented. As an example and not by way of limitation, an output of a differential pressure sensor and an intake manifold pressure sensor output are used as a basis for determining whether or not an EGR system fault is occurring while an engine is running in conditions other than idling conditions.

Methods and systems for enhanced detection of e-navigation messages

Methods and systems for enhancing the detectability of maritime e-Navigation messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted, which are wrapped in a standard e-Navigation message format such as that used by the Automatic Identification System. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.

Systems and methods for vessel position reporting and monitoring

Systems and methods for vessel position reporting and monitoring. Methods and systems for augmenting e-Navigation messages to provide ancillary information, such as a history of previous vessel positions. A compact representation is provided, in which transmitters may select among a plurality of possible position layouts to provide a compact representation. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance.

Systems and methods for vessel position reporting and monitoring

Systems and methods for vessel position reporting and monitoring. Methods and systems for augmenting e-Navigation messages to provide ancillary information, such as a history of previous vessel positions. A compact representation is provided, in which transmitters may select among a plurality of possible position layouts to provide a compact representation. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance.

Methods and systems for enhanced detection of electronic tracking messages

Methods and systems for enhancing the detectability of electronic tracking messages are provided. Transmitters apply error protection encoding to the payload portion of messages to be transmitted. Transmitted messages are received by a satellite or other surveillance platform employing a compatible radio frequency receiver to collect message signals over a large area or great distance. Candidate messages are identified and the error protection encoding decoded to recover messages.