In one embodiment, a sensor unit to be utilized in an autonomous driving vehicle (ADV) includes a sensor interface coupled to a number of sensors mounted on a number of locations of an autonomous driving vehicle (ADV). The sensor unit includes a host interface to be coupled to a host system, where the host system is configured to perceive a driving environment surrounding the ADV based on sensor data obtained from the sensors and to plan a path to autonomously drive the ADV. The sensor unit includes a time synchronization hub device coupled to the sensor interface. The time synchronization hub device includes one or more TX and/or RX timestamp generators coupled to a time source, where the TX/RX timestamp generators generate TX/RX timestamps based on a time obtained from the time source to provide the TX/RX timestamps to one or more of the sensors.

A method corrects at least one transmission parameter for data transmission between a sensor unit and a control unit. A sensor timing signal is generated by a sensor oscillator with a predetermined period. The at least one transmission parameter is determined on the basis of the sensor timing signal. A reference timing signal is generated by a reference oscillator with a predefined reference period. The sensor timing signal is compared with the reference timing signal. A deviation of a current period of the sensor timing signal from a reference period is determined on the basis of the comparison. The at least one transmission parameter is corrected on the basis of the determined deviation.

A remote control apparatus is disclosed. The remote control apparatus comprises: a microphone; a communication unit; a storage unit for storing pattern information of a non-audible sound for identification of the locality of an external electronic device; and a processor for broadcasting, through the communication unit, information acquired on the basis of an ambient sound received through the microphone, and when a non-audible sound based on broadcasted information output from an electronic device is received through the microphone, comparing a pattern of the received non-audible sound with pattern information stored in the storage unit, and transmitting a pairing request signal to the electronic device on the basis of a comparison result.

A method includes listening, at a mobile collector, for beacons from a plurality of nodes to locate and communicate with a targeted node, each beacon comprising a utility device identification (ID) and communication channel information; receiving, by the mobile collector, the beacon from the targeted node of the plurality of nodes; and determining, by the mobile collector, that the beacon was received from the targeted node based on the utility device ID included in the beacon.

A method includes listening, at a mobile collector, for beacons from a plurality of nodes to locate and communicate with a targeted node, each beacon comprising a utility device identification (ID) and communication channel information; receiving, by the mobile collector, the beacon from the targeted node of the plurality of nodes; and determining, by the mobile collector, that the beacon was received from the targeted node based on the utility device ID included in the beacon.

An information processing apparatus includes: a memory configured to store first system time; and a processor configured to: receive, from an information acquisition apparatus after the first system time is written in the memory, first information acquired by the information acquisition apparatus and first time information indicating acquisition time of the first information; receive, from the information acquisition apparatus after receiving the first information and the first time information, second information and second time information indicating acquisition time of the second information; converting, based on the first system time, reception time at which the first information and the first time information are received into second system time; convert, based on the second system time and the first time information, the second time information into third system time; attach the second system time to the first information; and attach the third system time to the second information.

A radio communication device comprising a radio frequency circuit and a microcontroller arranged to control the radio frequency circuit. The radio communication device further comprises: a radio frequency reference connected to the radio frequency circuit and arranged to be the frequency reference of at least the symbol frequency; a MCU and a time frequency reference connected to the microcontroller. The microcontroller is arranged to determine a frequency error of the time frequency reference relative to the radio frequency reference by performing the steps of: transmitting a radio signal, and signal a timing signal on a control interface, comprising information on start of transmission and end of transmission of the radio signal; receive the timing signal from the radio frequency circuit and measure a transmission duration of the radio signal with reference to the MCU frequency reference and calculate a frequency error of the MCU frequency reference relative to the radio frequency reference based on the measured transmission duration of the radio signal and the number of symbols and the symbol frequency. Further, the microcontroller measures a time period of the time frequency reference with reference to the MCU frequency reference; and calculate the frequency error of the time frequency reference relative to the radio frequency reference.

A method of communicatively pairing a first furnishing item with a second furnishing item, the method including impacting the first furnishing item against the second furnishing item. The method also includes generating a first output with a first sensor of the first furnishing item in response to an impact between the first furnishing item and the second furnishing item and generating a second output with a second sensor of the second furnishing item in response to the impact between the first furnishing item and the second furnishing item. The method further includes receiving, by a controller, the first output, receiving, by the controller, the second output, and pairing a first communication circuit of the first furnishing item with a second communication circuit of the second furnishing item in response to receiving the second output within a predetermined time of receiving the first output.

A method of communicatively pairing a first furnishing item with a second furnishing item, the method including impacting the first furnishing item against the second furnishing item. The method also includes generating a first output with a first sensor of the first furnishing item in response to an impact between the first furnishing item and the second furnishing item and generating a second output with a second sensor of the second furnishing item in response to the impact between the first furnishing item and the second furnishing item. The method further includes receiving, by a controller, the first output, receiving, by the controller, the second output, and pairing a first communication circuit of the first furnishing item with a second communication circuit of the second furnishing item in response to receiving the second output within a predetermined time of receiving the first output.

A method for coordinating warning devices and a warning device are provided. The method is used to coordinate a plurality of warning devices. The method includes: providing a first warning device and at least one second warning device, wherein the first warning device has a first controller and each second warning device has a second controller; generating a first result and a second result according to an operation; operating the first controller in a first mode or a second mode according to the first result and the second result; and generating a first driving signal by the first controller if the first controller is in the first mode.