Abstract: A managing wireless device includes a local area communication device, a wide area communication device, a global position determination device, and a battery. The managing wireless device is attached to a first shipment component of a consolidated shipment. The managing wireless device is in communication with a server computing system. The managing wireless device has a unique identifier. Each of one or more additional wireless device(s) includes a local area communication device and a battery. Each of the additional wireless device(s) is attached to a respective shipment component of the consolidated shipment, other than the first shipment component. Each of the additional wireless device(s) is in bi-directional communication with the managing wireless device. Each of the additional wireless device(s) has a unique identifier. The managing wireless device and each of the additional wireless device(s) are associated with a same broadcast address.

Abstract: A managing wireless device includes a local area communication device, a wide area communication device, a global position determination device, and a battery. The managing wireless device is attached to a first shipment component of a consolidated shipment. The managing wireless device is in communication with a server computing system. The managing wireless device has a unique identifier. Each of one or more additional wireless device(s) includes a local area communication device and a battery. Each of the additional wireless device(s) is attached to a respective shipment component of the consolidated shipment, other than the first shipment component. Each of the additional wireless device(s) is in bi-directional communication with the managing wireless device. Each of the additional wireless device(s) has a unique identifier. The managing wireless device and each of the additional wireless device(s) are associated with a same broadcast address.

Abstract: A managing wireless device includes a local area communication device, a wide area communication device, a global position determination device, and a battery. The managing wireless device is attached to a first shipment component of a consolidated shipment. The managing wireless device is in communication with a server computing system. The managing wireless device has a unique identifier. Each of one or more additional wireless device(s) includes a local area communication device and a battery. Each of the additional wireless device(s) is attached to a respective shipment component of the consolidated shipment, other than the first shipment component. Each of the additional wireless device(s) is in bi-directional communication with the managing wireless device. Each of the additional wireless device(s) has a unique identifier. The managing wireless device and each of the additional wireless device(s) are associated with a same broadcast address.

Abstract: A security device includes a processor defined to control operation of the security device. The security device also includes a radio defined in electrical communication with the processor. The security device also includes a location determination device defined in electrical communication with the processor. The processor, radio, and location determination device are defined to operate collaboratively to provide a wireless tracking and communication system. The security device also includes a shackle and a locking mechanism. The locking mechanism is defined in electrical communication with the processor. The processor is defined to operate the locking mechanism to control locking and unlocking of the shackle based on information obtained through the wireless tracking and communication system.

Abstract: A sending device generates a MAC frame to be transmitted over a wireless network. The MAC frame indicates a frame transmission type. A payload portion of the MAC frame is defined in accordance with a payload specification of a distributed asset management protocol corresponding to the indicated frame transmission type. The MAC frame is transmitted over the wireless network and received by a receiving device that is defined to recognize the MAC frame as the indicated frame transmission type. The receiving device is defined to process the payload portion of the MAC frame in accordance with the payload specification of the distributed asset management protocol corresponding to the indicated frame transmission type. Network discovery includes successively transmitting the MAC frame at a defined interval during a first period of time. Then, the MAC frame transmission is ceased for a second period of time. Then, transmission of the MAC frame resumes.

Abstract: A security device includes a processor defined to control operation of the security device. The security device also includes a radio defined in electrical communication with the processor. The security device also includes a location determination device defined in electrical communication with the processor. The processor, radio, and location determination device are defined to operate collaboratively to provide a wireless tracking and communication system. The security device also includes a shackle and a locking mechanism. The locking mechanism is defined in electrical communication with the processor. The processor is defined to operate the locking mechanism to control locking and unlocking of the shackle based on information obtained through the wireless tracking and communication system.

Abstract: A sending device generates a MAC frame to be transmitted over a wireless network. The MAC frame indicates a frame transmission type. A payload portion of the MAC frame is defined in accordance with a payload specification of a distributed asset management protocol corresponding to the indicated frame transmission type. The MAC frame is transmitted over the wireless network and received by a receiving device that is defined to recognize the MAC frame as the indicated frame transmission type. The receiving device is defined to process the payload portion of the MAC frame in accordance with the payload specification of the distributed asset management protocol corresponding to the indicated frame transmission type. Network discovery includes successively transmitting the MAC frame at a defined interval during a first period of time. Then, the MAC frame transmission is ceased for a second period of time. Then, transmission of the MAC frame resumes.

Abstract: A security device is disclosed to include a processor defined to control operation of the security device. The security device also includes a radio defined in electrical communication with the processor. The security device also includes a location determination device defined in electrical communication with the processor. The processor, radio, and location determination device are defined to operate collaboratively to provide a wireless tracking and communication system. The security device also includes a shackle and a locking mechanism. The locking mechanism is defined in electrical communication with the processor. The processor is defined to operate the locking mechanism to control locking and unlocking of the shackle based on information obtained through the wireless tracking and communication system.

Abstract: A radio is defined in electrical communication with a processor on an integrated circuit chip. The radio is defined to operate at an international frequency, and is defined to be powered on and off in accordance with a control signal to be transmitted by the processor. A location determination device is defined to electrically communicate with the processor. The location determination device is also defined to be powered on and off in accordance with a control signal to be transmitted by the processor. A power source is defined to supply power to the processor, the radio, and the location determination device. The processor, radio, location determination device, and power source are integrated together in a portable device that can be affixed to a moveable asset. A power management program is implemented to enable long-term deployment of the portable device without replacement of the power source.