The present invention relates to a multifunctional lighting apparatus for a bicycle, which includes: a lighting apparatus ascending/descending support unit detachably mounted on a steering unit of a bicycle; an ascending/descending movement body part vertically movably located in the lighting apparatus ascending/descending support unit; and a main lighting lamp unit located in the ascending/descending movement body part and irradiating light, and as a result, a lighting lamp unit can be located at a position desired by a driver by adjusting a height of the lighting lamp unit, thereby enhancing both satisfaction and safety in use.

The present invention relates to a multifunctional lighting apparatus for a bicycle, which includes: a lighting apparatus ascending/descending support unit detachably mounted on a steering unit of a bicycle; an ascending/descending movement body part vertically movably located in the lighting apparatus ascending/descending support unit; and a main lighting lamp unit located in the ascending/descending movement body part and irradiating light, and as a result, a lighting lamp unit can be located at a position desired by a driver by adjusting a height of the lighting lamp unit, thereby enhancing both satisfaction and safety in use.

A system and method for estimating a location of a vehicle, including, using a processor: measuring, via an inertial sensor attached to a vehicle, at least one of an acceleration or angular velocity of the vehicle; determining, via the processor, in the at least one of the acceleration or the angular velocity a signal signature based on a pattern recognition algorithm, wherein the signal signature is associated with a particular mark located at a particular location; determining, via the processor, that the vehicle is located at the particular location based on the predetermined association between the particular mark and the particular location; and providing, via the processor, the particular location to a human user or to a computerized application.

A system and method for estimating a location of a vehicle, including, using a processor: measuring, via an inertial sensor attached to a vehicle, at least one of an acceleration or angular velocity of the vehicle; determining, via the processor, in the at least one of the acceleration or the angular velocity a signal signature based on a pattern recognition algorithm, wherein the signal signature is associated with a particular mark located at a particular location; determining, via the processor, that the vehicle is located at the particular location based on the predetermined association between the particular mark and the particular location; and providing, via the processor, the particular location to a human user or to a computerized application.

The purpose of this invention is to improve the health of users while effectively utilizing data obtained from information about tooth brushing. One embodiment of the present invention is a server connected via a network to a user terminal communicating with an instrument equipped with a sensor that detects predetermined measurement information on tooth brushing, and to an evaluator terminal that inputs predetermined evaluations, which receives measurement information on tooth brushing detected by the sensor, receives the measurement information on tooth brushing, receives the receiving habit information of a user who performs tooth brushing, and transmits the evaluation information based on the measurement information and the habit information to the user terminal.

The purpose of this invention is to improve the health of users while effectively utilizing data obtained from information about tooth brushing. One embodiment of the present invention is a server connected via a network to a user terminal communicating with an instrument equipped with a sensor that detects predetermined measurement information on tooth brushing, and to an evaluator terminal that inputs predetermined evaluations, which receives measurement information on tooth brushing detected by the sensor, receives the measurement information on tooth brushing, receives the receiving habit information of a user who performs tooth brushing, and transmits the evaluation information based on the measurement information and the habit information to the user terminal.

Examples describe systems and methods for iteratively determining a signal strength map for a wireless access point (AP) aligned to position coordinates. An example method includes receiving logs of data from devices. For a plurality of iterations, the method includes selecting a set of logs of data having an amount of GPS being less than a given amount of GPS in a previously selected set, determining estimates of signal strength maps for the wireless AP aligned to position coordinates based on the selected set and on given signal strength maps due to a previous iteration, and performing a simultaneous localization and mapping (SLAM) optimization of the possible locations of the wireless AP based on the given signal strength maps and the estimates of the signal strength maps. Based on the iterative optimizations, an output signal strength map is provided for the wireless AP aligned to position coordinates.

Examples describe systems and methods for iteratively determining a signal strength map for a wireless access point (AP) aligned to position coordinates. An example method includes receiving logs of data from devices. For a plurality of iterations, the method includes selecting a set of logs of data having an amount of GPS being less than a given amount of GPS in a previously selected set, determining estimates of signal strength maps for the wireless AP aligned to position coordinates based on the selected set and on given signal strength maps due to a previous iteration, and performing a simultaneous localization and mapping (SLAM) optimization of the possible locations of the wireless AP based on the given signal strength maps and the estimates of the signal strength maps. Based on the iterative optimizations, an output signal strength map is provided for the wireless AP aligned to position coordinates.

A liquid level detecting apparatus of a tank for a vehicle is provided. The apparatus includes a main detecting part that detects the liquid level of the liquid in a tank to output a liquid level detection signal corresponding to the liquid level and an auxiliary floater assembly that has an auxiliary floater provided to float on the liquid surface of the liquid in the tank. A gyro sensor is mounted to the auxiliary floater, and an angle detection signal corresponding to an inclined angle of the tank is output by the gyro sensor. A controller determines a final liquid level value by correcting a liquid level value obtained from the liquid level detection signal based on the angle detection signal.

A liquid level detecting apparatus of a tank for a vehicle is provided. The apparatus includes a main detecting part that detects the liquid level of the liquid in a tank to output a liquid level detection signal corresponding to the liquid level and an auxiliary floater assembly that has an auxiliary floater provided to float on the liquid surface of the liquid in the tank. A gyro sensor is mounted to the auxiliary floater, and an angle detection signal corresponding to an inclined angle of the tank is output by the gyro sensor. A controller determines a final liquid level value by correcting a liquid level value obtained from the liquid level detection signal based on the angle detection signal.