60 results about "Passive infrared sensor" patented technology

The embodiment of the invention provides a control method and system of an air conditioner control system and a storage medium, and belongs to the field of air conditioner control. The method comprises the following steps: receiving first detection data of a passive infrared sensor, second detection data of a visual sensor and third detection data of a multi-path detection sensor; determining the temperature confidence of the target object according to the first detection data; determining the attitude confidence of the target object according to the second detection data; according to the third detection data, the air supply path interference confidence coefficient of the target object is determined; performing confidence coefficient weighting processing according to the temperature confidence coefficient, the attitude confidence coefficient and the air supply path interference confidence coefficient to obtain a target object confidence coefficient; when the confidence coefficient of the target object is smaller than or equal to a preset first confidence coefficient threshold value, the visual sensor and the multi-path detection sensor are controlled to enter a dormant state; otherwise, the air conditioner power parameters and / or the air supply path are / is adjusted. According to the embodiment of the invention, energy consumption and use experience can be considered.

The invention relates to the technical field of infrared safety monitoring, and discloses an infrared image-based area safety monitoring method, which comprises the following steps of: acquiring an infrared image of a target area through infrared camera equipment; performing denoising and detail enhancement processing on the acquired infrared image to obtain a denoised image; performing frequency domain conversion on the denoised image, and extracting high-frequency features of a target area; performing anomaly detection on the high-frequency features of the target region through a sparse representation model, and judging whether the target is abnormal or not; outputting an alarm signal or triggering linkage response equipment according to an abnormal detection result; and carrying out storage and analysis processing on the abnormal target and related monitoring data. The infrared radiation signals are accurately captured through quantization and digital conversion by adopting an acquisition technology that infrared camera equipment is combined with an active infrared sensor and a passive infrared sensor. The technical effect of acquiring high-quality infrared images in real time is achieved, and the problems of low acquisition efficiency and insufficient image signal stability are solved.

The invention provides a door lock voice interaction method and device and a related product, and relates to the technical field of intelligent interaction. When the method is executed, a PIR passive infrared sensor is triggered, whether a voice instruction of a user is received or not is judged, the voice instruction is a preset voice instruction, and the voice instruction of the user is used for indicating that a first use scene is met, that is, when the first use scene is met, an interaction strategy corresponding to the first use scene is executed, and the interaction strategy corresponding to the first use scene is executed. Obtaining a door lock voice interaction result, and finally outputting the door lock voice interaction result. Thus, in response to the fact that the PIR passive infrared sensor is triggered and the use scene is met, the interaction strategy corresponding to the met use scene is executed, so that a user interacts with the door lock, and the voice interaction experience of the user and the door lock can be improved.

The application is directed to an electronic that includes multiple motion sensors, such as passive infrared sensors, that the electronic device uses to detect characteristics of objects. For instance, the motion sensors may be substantially vertically aligned and / or substantially horizontally aligned with one another, where each motion sensor is positioned at a respective angle with respect to a ground plane. When the motion sensors detect an object, the electronic device can then determine a direction at which the object is moving and / or a speed at which the object is moving. In some instances, the direction may include towards the electronic device or away from the electronic device. Additionally, based on the characteristics of the object, the electronic device may perform an action, such as generating image data using a camera and / or sending a user alert.

The application discloses a pet care air purifier parameter intelligent control method and system, aiming at solving the problem that the existing purifier is difficult to identify the long-time stillness of pets in the monitoring blind area, resulting in the accumulation of local pollution. The method continuously receives the data stream of the visual sensor and the passive infrared sensor, and when no clear pet signal is detected within the preset time, the blind area intention inference instruction is activated, the multi-dimensional environmental abnormal signal of odor, local temperature and particulate matter is collected, and after time consistency, space correlation and comprehensive threshold correlation analysis, the adaptive purification strategy of fan speed fine tuning, filter optimization and directional airflow guidance is executed after the pet in the blind area is confirmed to be still. According to the recovery of pet activity or the weakening of environmental abnormalities, the method can be switched to the normal mode or the low-power mode. The application can accurately identify the still state of the pet in the blind area, remove the pollutants in a targeted manner, balance the purification efficiency, energy saving and low noise, and improve the fine management level of indoor air quality.

A power management system for a dispenser that includes a passive infrared radiation sensor arranged along the dispenser and configured to detect infrared radiation emitted by one or more users within a prescribed detection range, area, or zone of the dispenser. When the passive infrared radiation sensor does not capture infrared radiation within the prescribed detection range, area, or zone, the dispenser is placed in a low power state with the passive infrared sensor remaining connected to a power source and a controller, a dispensing mechanism, and / or the proximity sensor being disconnected from the power source. Other aspects also are described.

The invention relates to the technical field of Internet of Things monitoring, in particular to a 4G Cat.1 passive Internet of Things monitoring system and method based on Vsim. The method comprises the following steps: pre-storing network authentication information of at least two operators through a VSim software unit; establishing low-power-consumption network connection between the 4G Cat.1 communication unit and a preset cloud management platform according to the network authentication information in a terminal dormant state; the method comprises the following steps: continuously monitoring heat radiation change in a target monitoring area through a passive infrared sensor, and when an effective moving event is detected, generating a hardware interruption wake-up signal; and waking up the terminal according to the hardware interrupt wakeup signal, and obtaining compressed audio and video data of the target monitoring area through the terminal. According to the method, millisecond-level wakeup and optimal link maintenance under permanent endurance of the passive camera are realized through a VSim multi-operator dynamic switching and electric quantity self-adaption strategy.

Device for operating a passive infrared (PIR) detector with a first connection (IN) and a second connection (IP), the device comprising: - an electrical circuit arrangement (R G ), wherein the electrical circuit arrangement (R G ) forms a leakage resistance between the first terminal (IN) and the second terminal (IP) of the passive infrared detector (PIR) to discharge the first terminal (IN) and the second terminal (IP) of the passive infrared detector (PIR); wherein the electrical circuit arrangement (R G ) includes a switch-capacitor circuit with transfer gates and storage capacities; and the device is set up for this purpose: - the transfer gates of the electrical circuit arrangement (R G) to switch alternately with a first clock (φ1) and a second clock (Φ2), and to advance a charge quantity by one node with each half-clock using the storage capacities, whereby the first clock (φ1) and the second clock (Φ2) do not overlap and, apart from the non-overlap, the first clock (φ1) is the inverse of the second clock (Φ2); and - to switch off the first clock (φ1) and the second clock (Φ2) during a measurement phase, so that the device is in a measurement state and the charge flow through the electrical circuit arrangement (R G ) is prevented.

A passive infrared (PIR) sensor system, includes a PIR sensor configured to produce an output signal in response to receiving infrared (IR) radiation, an electronic shutter positionable in a field of view (FOV) of the PIR sensor, wherein the electronic shutter includes a liquid crystal (LC) material, wherein the electronic shutter includes a first state providing a first transmissivity of IR radiation through the electronic shutter and a second state providing a second transmissivity of IR radiation through the electronic shutter that is less than the first transmissivity, and a shutter actuator configured to apply an actuation signal to the electronic shutter to actuate the electronic shutter between the first state and the second state.

The present application relates to the technical field of intelligent monitoring and security, and particularly relates to a human and animal target detection method and device based on a passive infrared sensor, wherein the method comprises: collecting and processing energy change signals of a target environment by a signal amplification circuit of the passive infrared sensor to obtain a plurality of data frames; performing multi-domain feature extraction on the plurality of data frames to obtain a plurality of initial feature vectors; performing discriminability evaluation and correlation analysis on the plurality of initial feature vectors to screen out a final feature vector; iteratively executing the foregoing process to construct and update a target detection feature library; randomly sampling a plurality of training subsets from the target detection feature library to train a plurality of decision trees, and calculating out-of-bag error rates and corresponding weights of each decision tree to perform weighted voting statistics, and then deciding whether there is a human / animal target in the target environment. Thus, the problem that existing passive infrared sensors are difficult to meet the requirements of high accuracy and strong adaptability in complex outdoor scenes is solved.

A disinfection platform for at least partially disinfecting a proximal surface is provided. A disinfection apparatus includes a housing defining an aperture, a UV light source enclosed in the housing configured to project a UV illumination pattern toward a target disinfection area where the disinfection apparatus is disposed above one end and oriented at a downward angle. The illumination pattern output from the disinfection apparatus at least partially defined by louvers and an occlusion nose with reflective fins positioned at the aperture such that the illumination pattern at the target disinfection surface has improved intensity distribution. Multiple sensors cooperate with a control circuit operating the UV light source to provide intelligent and automated control with pattern detection, event based disinfection, and validation. Dual passive infrared sensors enable improved pattern detection for presence detection, accelerometer improves touch detection, and gyroscope provides attitude installation configuration.

A disinfection platform for at least partially disinfecting a proximal surface is provided. A disinfection apparatus includes a housing defining an aperture, a UV light source enclosed in the housing configured to project a UV illumination pattern toward a target disinfection area where the disinfection apparatus is disposed above one end and oriented at a downward angle. The illumination pattern output from the disinfection apparatus at least partially defined by louvers and an occlusion nose with reflective fins positioned at the aperture such that the illumination pattern at the target disinfection surface has improved intensity distribution. Multiple sensors cooperate with a control circuit operating the UV light source to provide intelligent and automated control with pattern detection, event based disinfection, and validation. Dual passive infrared sensors enable improved pattern detection for presence detection, accelerometer improves touch detection, and gyroscope provides attitude installation configuration.

The invention discloses a three-side sensing structure and an aisle indicating lamp based on the three-side sensing structure, the three-side sensing structure comprises a metal plate shell, a passive infrared sensor and an LED warning light source, the metal plate shell is provided with an upper mounting surface and a lower mounting surface which are symmetrical in position; a first side surface which is horizontally arranged and a second side surface which is parallel to the first side surface are arranged between the two mounting surfaces, the horizontal projection of the second side surface is positioned on the first side surface, and two third side surfaces which are obliquely arranged are connected between the first side surface and the second side surface; lED warning light sources are arranged on the second side face and the third side face. According to the utility model, the sensors are arranged at the bracket where paths intersect, and the sensing area of each sensor is 120 degrees, so that 360-degree dead-angle-free sensing and warning are realized, the safety performance is greatly improved, and people or vehicles can be timely detected and warned from which direction the people or the vehicles approach.

An intelligent robotic system for detecting and rescuing living people in disaster areas, consisting of: a mobile chassis configured for crossing debris-strewn and uneven terrain, the chassis comprising several DC geared motors driven by an H-bridge motor driver; a control unit with a microcontroller configured to receive sensor data, perform navigation and detection techniques, and transmit information via wireless communication; a subsystem for person detection comprising at least one passive infrared sensor for detecting heat signatures, at least one microwave Doppler radar module for detecting micro-movements indicative of breathing or heartbeat, and an ultrasonic sensor array for proximity and obstacle detection; an environmental monitoring subsystem comprising at least one gas sensor configured to detect hazardous gases selected from methane, smoke, propane or carbon monoxide; a visual feedback subsystem that includes a camera module configured to capture real-time images and video streams; a wireless communication interface configured for transmitting multi-sensor data and video feeds to a remote mobile application interface; and a power supply comprising at least one rechargeable battery that is operationally connected to the control unit, sensors and the propulsion system, The robot system is configured to detect the presence of living people, monitor environmental hazards, and inform rescue teams in disaster areas about the current situation in real time.

A method of controlling a field of view of a passive infrared sensor, the method comprising: providing a passive infrared sensor comprising: an infrared detector configured to detect infrared signals from a plurality of detection zones; and an electrochromic mask comprising a plurality of electrochromic sections; and applying a voltage to one or more of the plurality of electrochromic sections to control transmission of a predetermined range of infrared signals to the detector from one or more of the plurality of detection zones.

This document describes the technology related to a modular floodlight system. The modular floodlight system includes a floodlight unit with a main housing supporting multiple floodlights and a modular camera unit. The main housing includes a magnetic mount that magnetically secures the camera unit to a mounting surface and enables three-axis hinged connection of the camera unit relative to the main housing. The main housing also includes a power supply unit that supplies power to the camera unit and the floodlights. The floodlights are assembled to opposite sides of the main housing. Furthermore, the main housing includes a passive infrared sensor that extends and complements the motion detection capabilities of the camera unit. The modularity of the modular floodlight system allows the camera unit to be easily replaced with another modular unit, simplifies installation for consumers, and improves the reconfigurability of the modular floodlight system.

A system for determining occupancy in an environment is provided. The system includes plurality of sensor bundles, with each bundle including a presence sensor and a motion sensor. The system further includes a controller in communication with each sensor bundle. The controller is configured to designate one of the sensor bundles as presence triggered if persons are present within a field of view of the presence sensor. The controller is further configured to designate one of the sensor bundles as motion triggered if persons are moving within a field of view of the motion sensor. The controller is further configured to determine a triggered bundle count of the sensor bundles which are both presence triggered and motion triggered. The controller is further configured to determine an occupancy count for the environment based upon the triggered bundle count.

A rear occupant alert device according to an embodiment comprises a first object detection unit; a second object detection unit; and a control unit configured to control operations of the first and second object detection units, wherein the first object detection unit includes a passive infrared sensor (PIR) sensor, wherein the second object detection unit includes a radar module, and the control unit is configured to control a movement of an object inside a vehicle through the first object detection unit, and to control a movement of an object through the second object detection unit when the movement of the object is not detected through the first object detection unit.

This invention provides a state control method, system, and camera for a camera, applicable to the field of cameras. The camera's processor controls the camera's state based on the triggering of a first signal and a second signal, controlling the camera to be in an active or standby state. The first signal comes from a passive infrared sensor, and the second signal comes from radar. The first signal is triggered when someone moves within the detection area of ​​the passive infrared sensor, and the second signal is triggered when someone moves within the detection area of ​​the radar. The detection areas of the passive infrared sensor and the radar overlap. This effectively reduces the camera's power consumption, increases standby time, and helps reduce invalid video files.

The utility model discloses a long-distance passive infrared sensing device and a lighting system using the same. The long-distance passive infrared sensing device comprises a passive infrared sensor, an amplifier, a comparator and a reflection cup, the amplifier is electrically connected with the passive infrared sensor. The comparator is electrically connected with the amplifier. The reflective cup is adjacent to the passive infrared sensor. And the outer surface of the reflecting cup is a reflecting surface. The reflecting surface of the reflecting cup is configured to reflect the infrared rays to the passive infrared sensor. When a long-distance human body emits infrared rays with the wavelength of about 10 microns, the reflection cup can be used as an element for collecting signals, increasing the signal intensity and increasing the sensing distance.

A passive infrared sensor sensitivity adjustment device includes a processing module, a sensitivity control module and a sensing function adjustment module. The processing module receives an input signal and generates a sensitivity control signal accordingly. The sensitivity control module is connected to the processing module, receives the sensitivity control signal, and generates a sensitivity adjustment signal accordingly. The sensing function adjustment module is connected to the processing module and the sensitivity control module, and receives the sensitivity adjustment signal and a sensing signal generated by the passive infrared sensor. The sensing function adjustment module adjusts a preset threshold value according to the sensitivity adjustment signal, and compares the sensing signal with the preset threshold value to generate a voltage signal. The processing module generates a start signal according to the voltage signal to activate the target device or not generate the start signal according to the voltage signal.

A target detection method and device, electronic equipment, and storage medium are disclosed. The method includes detecting first information of a target device, determining second information of the target device according to the first information, the second information being used to indicate a master-slave working mode of a passive infrared sensor and a radar sensor associated with the target device, and the degree of interference when the passive infrared sensor and the radar sensor perform detection respectively being associated with a device running scene type, performing running control on the passive infrared sensor and the radar sensor associated with the target device according to the second information to obtain third information, the third information being used to indicate whether a target object of a preset type enters a detection area of the target device, and determining whether to wake up the target device to perform a target detection task according to the third information. The technical solution can improve the response speed of the target device used for target detection.

The application relates to the technical field of virtual reality, and relates to a 5D-based virtual film and television interaction and motion capture system. The 5D-based virtual film and television interaction and motion capture system specifically comprises a human body recognition device, a display device, a data processing device and an environment rendering device. The 5D virtual film and television interaction and motion capture system based on double Kinect sensor fusion is established, the motion information capture functions of the human hand and the human leg with prominent human body movement characteristics are respectively established, the detection precision is improved, a passive infrared sensor is additionally arranged, the human body is recognized and positioned in a relatively dark environment, a light control technology is established, the light brightness is automatically adjusted according to the dynamic projection environment scene change, the light changes according to the change of the content of the animation, and the self-defined light control system comprises touch screen control and handheld wireless remote control, so that the experience of participants is improved.

The invention belongs to the technical field of elderly activity monitoring, and discloses a toilet elderly activity monitoring method and related equipment, two passive infrared sensors are used for detecting original infrared radiation signals of a human body and infrared radiation intensity data reflected by a mirror surface respectively, and a water vapor sensor is used for detecting water vapor concentration data; interference of mirror reflection and water vapor to the environment is comprehensively considered, the sensitivity threshold value of the sensor is adjusted based on the interference intensity, human body activity judgment is conducted by comparing the original infrared radiation signal of the human body with the sensitivity threshold value, and therefore environment interference can be effectively restrained, and the method has the advantage of improving the accuracy of activity monitoring of the old in the toilet.

A system for detecting and deterring animals and humans around agricultural fields, consisting of: a) a passive infrared sensor (PIR) (101) configured to detect the movement of animals or humans; b) an Arduino microcontroller (102) connected to the PIR sensor and configured to receive a signal from the PIR sensor upon motion detection; c) a buzzer (103) connected to the Arduino microcontroller and configured to emit an audible sound when activated by the Arduino microcontroller in response to the detected movement; d) a GSM module (104) connected to the Arduino microcontroller and configured to send a text message to a predefined telephone number upon detection of motion; the system sending real-time alerts to the field owner and preventing animals or humans from approaching the field.

A cabinet light includes a housing, a luminous unit arranged inside the cover, and an L-shaped lamp shade connected to the housing. The lamp shade is configured as an L-shape structure. Light emitting elements of the luminous unit are arranged to project light towards the inner side of the lamp shade. A diffusion plate and a reflection plate are obliquely arranged between the lamp shade and the luminous unit. A pulse width modulation rotary switch and a passive infrared sensor might be used to control the luminous unit.

A sensor device includes a passive infrared sensor, a control circuit, and a lens that directs infrared radiation onto the passive infrared sensor. The lens includes an obstruction that asymmetrically blocks transmission of infrared radiation through the lens. The control circuit is configured to determine the direction of crossing of individuals passing in front of the sensor device based on sensor signals from the passive infrared sensor.

The invention discloses a low-power-consumption multifunctional sensing node which comprises a power management module, a low-power-consumption control module, a multimode sensing module and a communication module. The low-power-consumption control module is connected with the power management module, the multi-mode sensing module and the communication module. A power supply input by the VBAT forms Vmain after passing through the voltage stabilizing unit, and supplies power to the low-power-consumption control module, the passive infrared sensor and the low-power-consumption trigger front end of the radio frequency energy detection unit; a power supply input by the VBAT forms Vsense after passing through a high-side switch unit, and supplies power to the infrared signal detection module, the radio frequency energy detection module and the acoustic acquisition unit; and the power supply input by the VBAT passes through the other high-side switch unit to form Vcom to supply power to the communication module. According to the invention, the high-side P-MOSFET is connected in series with the switch and is matched with the Schottky diode to realize the physical power-off topology of reverse protection, so that the low false alarm rate and low average power consumption are realized.

A sensor device includes a passive infrared sensor, a control circuit, and a lens that directs infrared radiation onto the passive infrared sensor. The lens includes an obstruction that asymmetrically blocks transmission of infrared radiation through the lens. The control circuit is configured to determine the direction of crossing of individuals passing in front of the sensor device based on sensor signals from the passive infrared sensor.

Device for operating a passive infrared detector (PIR) - wherein at least one of the terminals of the passive infrared detector (PIR) is connected by an electrical circuit arrangement (R G ) is discharged and - wherein the equivalent resistance of the electrical circuit arrangement (RG) has a resistance value greater than 1 MOhm and / or greater than 10 MOhm and / or greater than 100 MOhm and / or greater than 1 GOhm and / or greater than 10 GOhm at least at one operating point and - wherein the electrical circuit arrangement (R G ) comprises a switched capacitor circuit and - where the switched capacitor circuit comprises two strands and - where each strand comprises several transfer gates and - where each string comprises several storage capacities and - where the transfer gates are switched alternately with one of two non-overlapping clocks (ϕ1, ϕ2) and - where, apart from the non-overlapping, one measure is the inverse of the other measure and - whereby the storage capacities are designed to transport a certain amount of charge with each half cycle by one node and - wherein the respective strands are designed to be operated in a half-cycle staggered manner to cause a continuous charge discharge and - wherein the device is designed to switch off the clock during measuring phases.