Patent application number | Description | Published |
20130247594 | SYSTEMS AND METHODS FOR HANDLING DISCRETE SENSOR INFORMATION IN A TRANSPORT REFRIGERATION SYSTEM - Systems and methods for handling discrete sensor information in a transport refrigeration system are provided. In one embodiment, a wireless control system for a transport refrigeration system is provided. The wireless control system includes two or more wireless end nodes and a network coordinator. Each of the wireless end nodes is configured to monitor a property of the transport refrigeration system. The network coordinator is configured to manage, command, direct and regulate the behavior of the wireless end nodes. Also, the network coordinator includes a sensor to zone coordinator that is configured to combine sensor data received by the two or more wireless end nodes to control a single transport refrigeration system function of the transport refrigeration system. | 09-26-2013 |
20130249710 | RF4CE for Automotive and Industrial Environments - A refrigerated container system is described that includes a wireless personal area network (WPAN) including a plurality of wireless sensor nodes and a coordinator node through which the sensors provide sensor data to a controller for the refrigerated container system. The wireless sensors and the coordinator incorporate a variety of features that ensure efficient utilization of battery life by preventing unintended pairing of sensors with other WPANs and excessive sensor signal processing arising from door chatter. Finally, pairing is performed without pressing a button on the wireless door sensor. Instead, the sensor's magnetic reed switch is enlisted to detect swiping of a magnet by a user to enter a pairing mode. | 09-26-2013 |
20130250930 | Reducing Risk of Cross Commissioning in a Radio Network - A refrigerated container system is described that includes a wireless personal area network (WPAN) including a plurality of wireless sensor nodes and a coordinator node through which the sensors provide sensor data to a controller for the refrigerated container system. The wireless sensors and the coordinator incorporate a variety of features that ensure efficient utilization of battery life by preventing unintended pairing of sensors with other WPANs and excessive sensor signal processing arising from door chatter. Finally, pairing is performed without pressing a button on the wireless door sensor. Instead, the sensor's magnetic reed switch is enlisted to detect swiping of a magnet by a user to enter a pairing mode. | 09-26-2013 |
20130252550 | Wireless Device Pairing Recovery - A refrigerated container system is described that includes a wireless personal area network (WPAN) including a plurality of wireless sensor nodes and a coordinator node through which the sensors provide sensor data to a controller for the refrigerated container system. The wireless sensors and the coordinator incorporate a variety of features that ensure efficient utilization of battery life by preventing unintended pairing of sensors with other WPANs and excessive sensor signal processing arising from door chatter. Finally, pairing is performed without pressing a button on the wireless door sensor. Instead, the sensor's magnetic reed switch is enlisted to detect swiping of a magnet by a user to enter a pairing mode. | 09-26-2013 |
20130252551 | Means for Pairing A Hermetically Sealed Wireless Device - A refrigerated container system is described that includes a wireless personal area network (WPAN) including a plurality of wireless sensor nodes and a coordinator node through which the sensors provide sensor data to a controller for the refrigerated container system. The wireless sensors and the coordinator incorporate a variety of features that ensure efficient utilization of battery life by preventing unintended pairing of sensors with other WPANs and excessive sensor signal processing arising from door chatter. Finally, pairing is performed without pressing a button on the wireless door sensor. Instead, the sensor's magnetic reed switch is enlisted to detect swiping of a magnet by a user to enter a pairing mode. | 09-26-2013 |
20130252552 | Door Ajar Detection and Recovery for a Wireless Door Sensor - A refrigerated container system is described that includes a wireless personal area network (WPAN) including a plurality of wireless sensor nodes and a coordinator node through which the sensors provide sensor data to a controller for the refrigerated container system. The wireless sensors and the coordinator incorporate a variety of features that ensure efficient utilization of battery life by preventing unintended pairing of sensors with other WPANs and excessive sensor signal processing arising from door chatter. Finally, pairing is performed without pressing a button on the wireless door sensor. Instead, the sensor's magnetic reed switch is enlisted to detect swiping of a magnet by a user to enter a pairing mode. | 09-26-2013 |
20130279386 | METHODS AND SYSTEMS FOR PRESERVING THE LIFE OF A POWER SOURCE OF A WIRELESS END NODE IN A TRANSPORT REFRIGERATION SYSTEM - Methods and systems for preserving the life of a power source of a wireless end node of a wireless communication system for use in a mobile environment are provided. In one embodiment, a method is provided that includes wirelessly transmitting a wireless end node acknowledgment message to a network coordinator during a normal operation mode of the wireless end node. The method also includes the wireless end node monitoring for a network coordinator acknowledgment message from a network coordinator in response to the wireless end node acknowledgement message during the normal operation mode of the wireless end node. Also, the method includes incrementing a missed acknowledgment counter value stored in a memory storage of the wireless end node when the network coordinator acknowledgment message is not received. Further, the method includes increasing a time period of a sleep timer of the wireless end node when the missed acknowledgment counter value equals a missed acknowledgment threshold. | 10-24-2013 |
20130285441 | METHODS AND SYSTEMS FOR PRESERVING THE LIFE OF A TRANSPORT REFRIGERATION SYSTEM POWER SOURCE - Methods and systems for preserving the life of a transport refrigeration system power source are provided. The method can include determining whether a control unit of the transport refrigeration system is off. Also, the method can include measuring an input voltage of a network coordinator when the control unit is off. Further the method can include instructing one or more parasitic electronic devices of the transport refrigeration mode to operate in a hibernation mode when the input voltage of the transport refrigeration system power source remains below a voltage threshold value for a time period and the control unit is off. | 10-31-2013 |
20130285831 | INTERFACES FOR SETUP OF A TRANSPORT REFRIGERATION SYSTEM AND PROVIDING TRANSPORT REFRIGERATION SYSTEM DIAGNOSTIC INFORMATION TO A USER - The embodiments described herein are directed to setup of a transport refrigeration system and providing transport refrigeration system diagnostic information to a user. In particular, interfaces on a wireless end node and a network coordinator of a wireless communication system are configured to provide setup and diagnostic functionality of the wireless communication system to a user with limited expertise in wireless communication systems. | 10-31-2013 |
20140018015 | METHODS AND SYSTEMS FOR PRESERVING THE POWER SOURCE LIFE OF A WIRELESS END NODE PRIOR TO DEPLOYMENT IN A TRANSPORT REFRIGERATION SYSTEM - Methods and systems for preserving the power source life of a wireless end node prior to deployment in a wireless communication system are provided. In one embodiment, a method is provided that includes operating the wireless end node in a long term storage mode prior to deploying the wireless end node in a wireless communication system in order to reduce current being drawn from a power source of the wireless end node. The method also includes the wireless end node detecting an interrupt request to pair the wireless end node to a wireless communication system. Also, the method includes the controller of the wireless end node switching from a long term storage mode to a normal operation mode when the wireless end node is paired to a wireless communication system. | 01-16-2014 |