A tool, such as a digital level, having multiple methods of indicating the orientation of the level. One embodiment of the level includes two or more accelerometers arranged in complimenting orientations, such as 90 degrees with respect to each other. The complimenting orientation allows for more precise measurements from less expensive accelerometers compared to a level with a single more expensive accelerometer. A power supply module, and an associated control module in charge of the power supply, selectively provides power to the accelerometers and displays based in part on user input, movement of the level, and the disposition of the level.

A system for determining alignment of a signal includes a light assembly comprising a light source operated by an electronic circuit, a first position sensor configured to measure a geographical direction of the light assembly, a second position sensor configured to measure a tilt angle of the light assembly, and a light communication device configured to receive measurements of the first position sensor and the second position sensor, and wherein the light communication device is configured to evaluate the measurements and determine alignment of the light assembly based on predefined tolerance thresholds for the geographical direction and tilt angle.

A system for determining alignment of a signal includes a light assembly comprising a light source operated by an electronic circuit, a first position sensor configured to measure a geographical direction of the light assembly, a second position sensor configured to measure a tilt angle of the light assembly, and a light communication device configured to receive measurements of the first position sensor and the second position sensor, and wherein the light communication device is configured to evaluate the measurements and determine alignment of the light assembly based on predefined tolerance thresholds for the geographical direction and tilt angle.

In general, techniques are described by which a computing system detects low-impact collisions. A computing system includes at least one processor and memory. The memory includes instructions that, when executed, cause the at least one processor to determine whether an object collided with a vehicle based on a comparison of data received from at least one motion sensor configured to measure at least an acceleration of the vehicle and data received from a plurality of level sensors, wherein each level sensor is configured to measure a relative position between a body of the vehicle and a respective wheel of a plurality of wheels of the vehicle. Execution of the instructions further causes the at least one processor to perform one or more actions in response to determining that the object collided with the vehicle.

In general, techniques are described by which a computing system detects low-impact collisions. A computing system includes at least one processor and memory. The memory includes instructions that, when executed, cause the at least one processor to determine whether an object collided with a vehicle based on a comparison of data received from at least one motion sensor configured to measure at least an acceleration of the vehicle and data received from a plurality of level sensors, wherein each level sensor is configured to measure a relative position between a body of the vehicle and a respective wheel of a plurality of wheels of the vehicle. Execution of the instructions further causes the at least one processor to perform one or more actions in response to determining that the object collided with the vehicle.

A racking protection device that includes a housing and vibration monitor. The vibration monitor is arranged to record the vibration transmitting through a racking component. The housing includes an alert for alerting a user when the racking requires inspection for damage to impacts. The vibration monitor records the frequency and time of each impact. The vibration monitor includes a memory that counts and records the number of minor impacts. The vibration monitor determines a minor impact when the peak frequency is between a minimum and maximum pre-set level for a predetermined time period. When a predeteiiiiined number of minor impacts is exceeded, the alert is arranged to alert the user to inspect the racking for damage. When the frequency exceeds the maximum pre-set level for a predetermined time period the vibration monitor determines that a severe impact has occurred and the alert is arranged to alert the user to inspect the racking for damage.

A racking protection device that includes a housing and vibration monitor. The vibration monitor is arranged to record the vibration transmitting through a racking component. The housing includes an alert for alerting a user when the racking requires inspection for damage to impacts. The vibration monitor records the frequency and time of each impact. The vibration monitor includes a memory that counts and records the number of minor impacts. The vibration monitor determines a minor impact when the peak frequency is between a minimum and maximum pre-set level for a predetermined time period. When a predeteiiiiined number of minor impacts is exceeded, the alert is arranged to alert the user to inspect the racking for damage. When the frequency exceeds the maximum pre-set level for a predetermined time period the vibration monitor determines that a severe impact has occurred and the alert is arranged to alert the user to inspect the racking for damage.

An electromagnetic angle sensing structure comprises a front cover with a display module electrically connected to a control circuit with a sensing module provided with a sensing area formed by at least one sensing coil, the circuit comprises a sensing control unit generating an electromagnetic variable quantity and a central processing module receiving the variable quantity and storing an angle data; and an inner assembly body with a front side formed with a curvature guide rail, being filled with a liquid and disposed with a metal ball displacing in the guide rail, an electromagnetic field generated by the coil generates changes in an inductance value due to the ball passing through, the sensing control unit generates the variable quantity being transmitted to the central processing module, an angle information converted by the central processing module through the variable quantity and the angle data is displayed on the display module.

An electromagnetic angle sensing structure comprises a front cover with a display module electrically connected to a control circuit with a sensing module provided with a sensing area formed by at least one sensing coil, the circuit comprises a sensing control unit generating an electromagnetic variable quantity and a central processing module receiving the variable quantity and storing an angle data; and an inner assembly body with a front side formed with a curvature guide rail, being filled with a liquid and disposed with a metal ball displacing in the guide rail, an electromagnetic field generated by the coil generates changes in an inductance value due to the ball passing through, the sensing control unit generates the variable quantity being transmitted to the central processing module, an angle information converted by the central processing module through the variable quantity and the angle data is displayed on the display module.

An electronic timepiece includes a detection axis calibration unit configured to execute first calibration processing of calibrating an axial direction and second calibration processing of calibrating a direction along a third detection axis, the second calibrating processing being executed after first calibration processing, a mode setting unit configured to set a first measurement mode when second calibration processing is not completed after completion of the first calibration processing, and set a second measurement mode when the second calibration processing is completed, a first azimuth calculation unit configured to calculate an azimuth, based on detected values of a three-axis magnetic sensor in two axial directions, when the first measurement mode is set, and a second azimuth calculation unit configured to calculate an azimuth, based on detected values of the three-axis magnetic sensor in three axial directions and a detected value of a inclination sensor, when the second measurement mode is set.