JPWO2020223635A5 - - Google Patents

Description

In one or more embodiments, the predetermined threshold may be dependent on a distance of a detected object (e.g., a human subject) that has been determined to be above a distance threshold based on the primary sensor signals. The predetermined threshold may be dependent on a variance (fluctuation) of the multiple primary sensor signals of the primary sensors being above a predetermined variance range.

In one or more embodiments, the controller system is configured to analyze data required to represent activity in front of a switch housing of the lighting control system and exclude data required to represent activity behind (i.e., behind) the switch housing. The controller system is configured to determine the presence of an object based on analyzing the sensor signals from the primary sensor and the auxiliary sensor. The controller is configured to control the lighting of the lighting fixture in response to determining the presence of the object. The controller system is configured to selectively analyze the auxiliary sensor signal in response to (1) a lack of a high level of confidence in the primary sensor signal or (2) uncertainty in the primary sensor signal from inconsistent confidence levels (e.g., sporadically occurring high levels of confidence) and large variability (e.g., detecting an object both moving away from and moving towards the lighting control sensor system) in the primary sensor signal. That is, the auxiliary sensor may be used to correct for uncertainty in the determination from the primary sensor. In one embodiment, the end of a duration of a low confidence level in the primary sensor signal may trigger a resampling of the primary sensor signal. In this manner, signals from the primary sensor and the auxiliary sensor may be effectively integrated to more accurately detect the presence of an object and more accurately track the object.

Claims (21)

1. A lighting control system comprising:
a lighting control module configured to provide a transfer of an amount of electrical energy to a lighting circuit of a lighting fixture electrically connected to the lighting control module;
a sensor system disposed within the lighting control module, the sensor system including a primary sensor and at least one auxiliary sensor, the primary sensor and the at least one auxiliary sensor being of different types;
a controller system communicatively coupled to the sensor system and configured to control a transfer of an amount of electrical energy to the lighting circuit;
A lighting control system, wherein the primary sensor of the sensor system is configured to maintain a continuously active state, the controller system is configured to analyze primary sensor signals from the primary sensor, the controller system is configured to selectively analyze one or more auxiliary sensor signals obtained from the at least one auxiliary sensor in response to one or more primary sensor signals being below a predetermined threshold and failing to detect the presence of an object , the predetermined threshold being dependent on a distance of a detected object that is determined to be greater than a predetermined distance based on the one or more primary sensor signals, and the controller system is further configured to modify a delivery of an amount of electrical energy to the lighting circuit in response to analysis of the one or more primary sensor signals and the one or more auxiliary sensor signals. The lighting control system of claim 1, wherein the controller system is configured to select a lighting scene from a plurality of lighting scenes based on analyzing sensor signals from the primary sensor and the at least one auxiliary sensor. 3. The lighting control system of claim 1 or 2, wherein the controller system is configured to change lighting settings of a light switch module based on analyzing sensor signals from the primary sensor and the at least one auxiliary sensor. The lighting control system of claim 1 , wherein the predetermined threshold value depends on a variation of the plurality of primary sensor signals of the primary sensors that is determined to exceed a predetermined variation range . A lighting control system according to claim 1 , wherein the at least one auxiliary sensor is configured to activate in response to detection by the primary sensor. A lighting control system according to claim 1 , wherein the at least one auxiliary sensor is configured to remain inactive until selectively activated by the controller system. The lighting control system of claim 1 , wherein the primary sensor and the at least one auxiliary sensor are selected from the group consisting of a radar sensor system, a time-of-flight sensor system, an inertial measurement unit sensor system, and a microphone sensor system. The lighting control system of claim 1 , wherein the primary sensor is a radar system and the at least one auxiliary sensor is selected from the group consisting of a time-of-flight sensor system, an inertial measurement unit sensor system, and a microphone sensor system. 9. The lighting control system of claim 8 , wherein the radar system is a pulse radar. The lighting control system of claim 8 , wherein the at least one auxiliary sensor includes a 9-axis inertial measurement unit sensor. 11. The lighting control system of claim 10 , wherein the nine-axis inertial measurement unit sensor includes a three-axis accelerometer, a three-axis gyroscope, and a three-axis magnetometer. The lighting control system of claim 8 , wherein the at least one auxiliary sensor includes a microphone. A lighting control system according to any preceding claim, wherein the lighting control module includes a light switch actuator. 13. The lighting control system of claim 1 , wherein the lighting control module includes a light switch actuator, the light switch actuator including a contact element and a tactile display housed within the light switch actuator. 15. The lighting control system of claim 14, wherein the light switch actuator is configured to move the contact pieces from a first position to a second position to connect a current path upon movement of an operating surface of the light switch actuator, the tactile display is configured to move simultaneously with the operating surface, the tactile display is configured to switch light settings in response to one or more movements on the operating surface, and the tactile display is configured to individually display separate icons in response to the change in light setting. 16. A lighting control system as claimed in any preceding claim, wherein the controller system is configured to analyse data required to represent activity ahead of a switch housing of the lighting control system and to exclude data required to represent activity behind a switch housing. The lighting control system of claim 1 , wherein the controller system is configured to determine the presence of the object based on analysing sensor signals from the primary sensor and the at least one auxiliary sensor. 20. The lighting control system of claim 17 , wherein the controller system is configured to control lighting of the luminaires in response to determining the presence of the object. 16. A lighting control system as claimed in any one of claims 1 to 15, wherein the controller system is configured to selectively analyse auxiliary sensor signals in response to determining from one or more primary sensor signals that the object is moving away from and towards the lighting control system. The lighting control system of claim 1 , wherein the controller system is configured to determine a number of objects in a room based on analysing sensor signals from the primary sensor and the at least one auxiliary sensor. The lighting control system of claim 1 , wherein the controller system is configured to track movement of objects in a room based on analyzing sensor signals from the primary sensor and the at least one auxiliary sensor.