In a sensor data acquisition terminal (10), an NTP back-end processing unit (12) synchronizes a terminal timing with a parent terminal timing by exchanging NTP packets for time synchronization with a parent terminal (20) based on NTP, and a protocol conversion unit (13) converts an NTP packet, which is output from the NTP back-end processing unit (12) and will be transmitted to the parent terminal (20), to a TPSN packet based on TPSN, outputs the TPSN packet to a wireless processing unit (14), converts a TPSN packet from the parent terminal (20), which is output from the wireless processing unit (14), to an NTP packet, and outputs the NTP packet to the NTP back-end processing unit (12).

In a sensor data acquisition terminal (10), an NTP back-end processing unit (12) synchronizes a terminal timing with a parent terminal timing by exchanging NTP packets for time synchronization with a parent terminal (20) based on NTP, and a protocol conversion unit (13) converts an NTP packet, which is output from the NTP back-end processing unit (12) and will be transmitted to the parent terminal (20), to a TPSN packet based on TPSN, outputs the TPSN packet to a wireless processing unit (14), converts a TPSN packet from the parent terminal (20), which is output from the wireless processing unit (14), to an NTP packet, and outputs the NTP packet to the NTP back-end processing unit (12).

A system and method for communicatively pairing a mobile communication device and a furniture item, such as a desk or table, includes placing the mobile communication device in a communication zone associated with the furniture item. In response to placing the mobile communication device in the communication zone, a communication link is established between the mobile communication device and a communication circuit of the furniture item. A user interface is then displayed on a display screen of the mobile communication device to show a preset height, such as a standing or sitting height, for the furniture device. When a user selects the preset height, an actuator adjusts the furniture item to the specific height. The communication circuit may use any available wireless communication protocol or circuit.

A system and method for communicatively pairing a mobile communication device and a furniture item, such as a desk or table, includes placing the mobile communication device in a communication zone associated with the furniture item. In response to placing the mobile communication device in the communication zone, a communication link is established between the mobile communication device and a communication circuit of the furniture item. A user interface is then displayed on a display screen of the mobile communication device to show a preset height, such as a standing or sitting height, for the furniture device. When a user selects the preset height, an actuator adjusts the furniture item to the specific height. The communication circuit may use any available wireless communication protocol or circuit.

A leader system for time synchronizing includes an interface and a processor. The interface is configured to receive a time standard. The processor is configured to determine whether a time jump is necessary in response to the time standard; and in response to determining that the time jump is necessary: 1) cause pausing of a collection of sensor data; 2) provide an indication to unregister one or more follower devices from a leader device; and 3) time jump a leader device time in response to the time standard.

In one embodiment, a system receives, at a sensor unit, a global positioning system (GPS) pulse signal from a GPS sensor of the autonomous driving vehicle (ADV), where the GPS pulse signal is a RF signal transmitted by a satellite to the GPS sensor, where the sensor unit is coupled to a number of sensors mounted on the ADV to perceive a driving environment surrounding the ADV and to plan a path to autonomously drive the ADV. The system receives a first local oscillator signal from a local oscillator. The system synchronizes the first local oscillator signal to the GPS pulse signal in real-time, including modifying the first local oscillator signal based on the GPS pulse signal. The system generates a second oscillator signal based on the synchronized first local oscillator signal, where the second oscillator signal is used to provide a time to at least one of the sensors.

Systems and methods described herein leverage dependence relationships between sensor readings to facilitate rapid detection of erroneous sensor readings and rapid response times when accurate sensor readings indicate events that call for remedial action. When a target sensor reports a questionable sensor reading, systems described herein can query additional sensors whose readings share expected dependence relationships with readings from the target sensor. Systems described herein determine whether the questionable sensor reading is trustworthy based on the expected dependence relationships and additional sensor readings received from the additional sensors. If the questionable sensor reading is trustworthy, the system can trigger appropriate remedial action and increase query rates for the additional sensors (and the target sensor) to monitor an underlying event more closely. If the questionable reading is not trustworthy, the system can trigger appropriate remedial action (e.g., by deactivating the sensor or sending an alert to an administrator).

The present invention relates to a method by which a user device controls a target device by using Bluetooth low energy technology in a wireless communication system, and an apparatus. According to the present invention, provided are a method and an apparatus for: discovering a first gateway for controlling at least one target device through a voice signal; receiving a first voice signal for controlling the at least one target device from a user; transmitting user information for identifying the user and the first voice signal to the searched for first gateway; and receiving, from the first gateway, a second voice signal or data indicating a control result with respect to the first voice signal.

The present invention relates to a method by which a user device controls a target device by using Bluetooth low energy technology in a wireless communication system, and an apparatus. According to the present invention, provided are a method and an apparatus for: discovering a first gateway for controlling at least one target device through a voice signal; receiving a first voice signal for controlling the at least one target device from a user; transmitting user information for identifying the user and the first voice signal to the searched for first gateway; and receiving, from the first gateway, a second voice signal or data indicating a control result with respect to the first voice signal.

Providing collision avoidance protection to controllers sharing the same sensor. Each of a pair of asynchronous controllers changes the period of a sync pulse transmitted to the other controller to indicate to the other controller it is synchronized. When one of the controllers begins reading data from the shared sensor, the other controller waits to receive another sync pulse for indicating when the controller is finished reading data from the shared sensor. Thus, the asynchronous controllers avoid accessing the same sensor at the same time.