Sensotech Inc.

Other

Uri Agam

Eli Gal

Pino Marcovecchio

Eli Ben-Bassat

Ronen Jashek

Elad Wallach

Guy Mualem

Yaron Baratz

A detecting system for an automatic door is provided including a TOF camera having a field of view that is limited in a first zone for a first purpose such as safety and in a second zone for another purpose such as activation or counting. The proposed system can be used for example in powered pedestrian doors, bus, rail, etc. In some embodiments, at least one ultrasound sensor system is further provided. The two technologies share hardware and information, resulting in improved safety and counting functions of the system, while reducing the amount of hardware used, space requirement and unit cost, and improving performance.

Time of flight (TOF) based detecting system for an automatic door

Embodiments of an adaptive ultrasound detecting system for a door assembly include an ultrasound transducer assembly mounted to the door assembly and a controller coupled to the ultrasound transducer assembly. The ultrasound transducer assembly is adapted to emit ultrasound detecting beams within the door path, and to trigger a detecting signal indicative of a body located within the door path when the body intersects at least one of the ultrasound detecting beams. The controller is adapted to receive information indicative of a position of the door along the path, and to vary emitting at least one detecting beam in accordance to the position of the door relative to the ultrasound detecting beams.

Adaptive ultrasound detecting system for a door assembly

Sensor system for acoustic detection in a dispensing system of a container having a rim and content includes at least one controller coupled to the dispensing system for selectively triggering on and off the dispensing system, an ultrasound position sensor coupled to the controller for emitting a first ultrasound beam towards a container-receiving location, for receiving ultrasound echoes indicative of a position of the container relative to a dispenser outlet, and for sending a first signal to the at least one controller indicative of the container position relative to the dispenser outlet, and an ultrasound fill sensor coupled to the at least one controller for emitting a second ultrasound beam towards the container-receiving location, for receiving ultrasound echoes indicative of the rim and content surface, and for sending to the at least one controller a second signal indicative of the position of the content surface relative to the rim.

Sensor in a dispensing system for acoustic detection of a container and content thereof

A level sensor system according to the present invention includes a controller and a sensor assembly defined by a transducer assembly and a mounting assembly configured for a quick connection or non permanent attachment of the transducer assembly to the tank or container. The ultrasound transducer assembly emits ultrasound pulses in the tank along a detecting path, receives ultrasound echoes indicative of at least one of the first and second fluids and produces echo signals representative of the at least one of the first and second fluids. The mounting assembly is configured for receiving the ultrasound transducer assembly and for operatively mounting the ultrasound transducer assembly to the tank for ultrasound measurement. The controller is coupled to the ultrasound transducer assembly, receives the echo signals and determines the position of the fluid interface therewith; the level of the first fluid being defined by the position of the fluid interface. The fact that the sensor assembly is configured so as to be removably mounted to the tank allows replacing the tank, for example when it is empty, without having to replace the sensor assembly.

Level sensor system for propane tanks and or the likes

A presence detector for a door assembly which includes a door closing a door entrance is described herein. The detector includes a transducer assembly mounted to the door assembly for emitting at least one ultrasound detecting beam adjacent the door entrance and for triggering a detecting signal indicative of a body located adjacent the door entrance when the body intersects the at least one ultrasound detecting beam and a controller for receiving information indicative of a position of the door and for controlling the emission of the at least one detecting beam accordingly with the position of the door. The detector assembly operates in crossing, ranging or dual modes.

Presence detector for a door assembly

A system and method for short-range ultrasonic detecting of a target is proposed herein to be used for example in a liquid-dispensing system such as those provided in home refrigerators. The system comprises a sensor assembly including a transmitter and a receiver positioned side by side so as to yield respective transmitting and receiving beams which overlap to define an asymmetrical shaped detection area, a controller coupled to both the transmitter and receiver to activate the transmitter and for receiving echoes indicative of the target from the receiver and to the dispensing system for opening a valve of the dispensing system when a target is detected. Noises and false alarm rate minimization methods are implemented, including variable relevance zones and requiring a void of signal before excitation.

Method and system for short-range ultrasonic location sensing

A presence detection system for level crossing or to detect a target at the intersection of any paths is described herein. The system comprises an ultrasound sensor array positioned at the intersection of the first and second paths for defining a detecting area thereon and for emitting a first trigger signal when the body is in the detecting area; and a controller coupled to the ultrasound sensor array for receiving the first trigger signal and for emitting an alarm signal indicative of the first trigger signal. The sensor array detects the presence of a target by creating acoustic virtual lines which form between emitter and receiver or transducer and reflectors and/or by deploying conical or parallel detecting beams and which can be used, for example to measure the distance between each sensor forming the array and the target. The sensor array can deploy beams or acoustic lines in several plans and therefore allow detecting penetration above the conventional railway crossing barriers.

Presence detection system for path crossing

The adaptive system and method for ultrasound sensing comprises re-evaluating over time the detection threshold for predetermined sensing positions along the scanning direction to cope for the static target and environment changes at the sensing positions. The method includes comparing the measured echo value at each sensing position to a reference echo value corresponding to the same sensing position, and to iteratively determine a new reference value whenever the echo value is greater than the reference echo value and that the difference between the measured echo value and the reference echo value is lower than a detection assurance factor. The use of the adaptive ultrasound sensing system and method allows locating the sensor at different location without requiring a new calibration thereof, since the sensor learns the clutter dynamically and the detection thresholds are being built accordingly without being dependent on the environment in which the sensor is located.

Device and method for adaptive ultrasound sensing

The invention provides for an ultrasonic transducer support with a reflector attached such that a stray energy shield is designed to at least partially envelop the transducer in order to limit the angular range of ultrasonic energy which impinges on the transducer.

Ultrasonic transducer

A safety system for a vehicle including at least one sensor ( ) viewing at least one region ( ) in an interior portion of a vehicle defining a protected volume at least partially in front of the vehicle airbag, and logic circuitry responsive to the at least one sensor ( ) for determining geometric data of objects ( ) in the protected volume.

Vehicle sensor apparatus

Door control apparatus for vehicles including at least one sensor viewing at least one region in the vicinity of a door, logic circuitry responsive to the sensor for providing at least one region clear output signal and automatic door opening and door closing apparatus responsive at least to the absence of a region clear signal to cause opening of the door and responsive at least to the presence of a region clear output signal to cause closing of the door.

Door control apparatus

A platform sensing and control system including a wireless sensor ( ) for sensing at least the presence of a platform ( ) opposite a door ( ) of a railcar and providing an output indication of at least a platform presence in response thereto, and a door control controller ( ) operative in response to the output indication of at least platform ( ) presence for enduring that normally a door ( ) is not opened other than when a platform ( ) is located opposite such door ( ).

Door opening control apparatus

A digital input device for entering data into a digital system, comprises at least two remote sensors and a control unit. A working area is set up in proximity to the sensors and the position of an object within the working area is detected by the input device based on data provided by each sensor and transmitted, by said control unit, to said digital system. The position of an object outside said working area, if detected by said input device, is rejected by said control unit and is not transmitted to said digital system. The sensors can be ultrasonic sensors and the object can be a part of the body of a user. Use of a third sensor allows three-dimensional detection of the object.

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Montréal, Canada

Uri Agam