34 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 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.

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.

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.

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 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 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.

The invention relates to the technical field of intelligent monitoring and security, in particular to a human and animal target detection method and device based on a passive infrared sensor, and the method comprises the steps: collecting and processing an energy change signal of a target environment through a signal amplification circuit of the passive infrared sensor, so as 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 discrimination evaluation and correlation analysis on the plurality of initial feature vectors to screen out final feature vectors; iteratively executing the process to construct and update a target detection feature library; and randomly sampling a plurality of training subsets in the target detection feature library to train a plurality of decision trees, calculating an out-of-bag error rate and a corresponding weight of each decision tree to perform weighted voting statistics, and further deciding whether a human / animal target exists in the target environment or not. Therefore, the problem that the existing passive infrared sensor is difficult to meet the requirements of high accuracy and high adaptability in an outdoor complex scene is solved.

This application discloses an intrusion detection method, electronic device, and computer-readable storage medium. The method includes: acquiring first radiation energy collected by multiple passive infrared sensors at a current moment, wherein at least some of the passive infrared sensors are configured to detect different sub-regions within a target area; determining the current energy change of the target area at the current moment based on the first radiation energy collected by each passive infrared sensor; acquiring environmental parameters at the current moment and determining an energy change threshold based on the environmental parameters; and determining whether an intrusion target exists in the target area at the current moment based on the current energy change and the energy change threshold. This method can improve the success rate of intrusion detection in complex environments.

The invention relates to the field of smart home, and discloses an environment sensing smart alarm clock and system, and the alarm clock comprises a main control unit, a circular touch display screen, a microphone, a loudspeaker, a passive infrared sensor, a temperature and humidity sensor, an ambient light sensor, an addressable RGBLED lamp strip, and a wireless communication module. The MCU controls each hardware to realize time management, environment information display and voice touch interaction; in combination with sensor data, an automatic night mode is realized, and a proximity sensing screen / night lamp is awakened; natural wake-up light is simulated through the RGBLED lamp strip; and based on a device state, environment data and user interaction, a personalized virtual image on a display screen is driven to perform dynamic feedback, and emotion accompanying is provided. The invention aims to provide a cost-controllable environment-sensing intelligent alarm clock solution which is high in function integration level, optimized in bedroom environment, natural in interaction and personalized in temperature.

An energy device control apparatus for controlling lighting, HVAC or other energy devices of a particular area of a building is provided. The apparatus includes a presence sensor, a passive infrared sensor, a microprocessor, and a controller to control the energy device by detecting human occupancy in the area of the building.

A device for occupancy detection of a space includes a passive infrared (PIR) sensor having a fixed field of view; an infrared reflector positioned proximate to the PIR sensor for re-directing infrared radiation received from within the space toward the PIR sensor; an electromechanical device coupled to the infrared reflector and operative to alter a pointing angle thereof in response to a control signal; and, detection and control circuitry (or a microcontroller), coupled to the PIR sensor and the electromechanical device, operative to receive a signal from the PIR sensor indicative of motion of a person within the space, and further operative to selectively alter the pointing angle of the infrared reflector, using the electromechanical device, whereby the relative position of the person is shifted within the fixed field of view of the PIR sensor, thereby simulating motion of the person even when stationary.

A detection system (10) and a detection method (2000) are disclosed herein. The system includes a PIR sensor (12) positioned in an area comprising a plurality of sub-areas, the motion sensor comprising an optical device (22) having a plurality of sub-lenses (26, 28, 30), each sub-lens of the plurality of sub-lenses having a field of view (FOV) corresponding to a sub-area of the plurality of sub-areas. The system further includes at least one processor (32) coupled to the PIR sensor and configured to: activate the plurality of sub-lenses to generate a total sensor FOV comprising each FOV of the plurality of sub-lenses; and dynamically control the plurality of sub-lenses to subdivide the total sensor FOV, wherein the subdivided sensor FOV is smaller than the total sensor FOV.

The utility model discloses an ultra-wide-angle passive infrared sensing device and a lighting system using the same. The ultra-wide-angle passive infrared sensing device comprises a circuit board, a first passive infrared sensor and two second passive infrared sensors, the circuit board has a first surface and a second surface opposite to each other. The first passive infrared sensor is located on the first surface of the circuit board and has a first sensing area. The two second passive infrared sensors are located on the second surface of the circuit board and are adjacent to each other. Each of the two second passive infrared sensors is provided with a second sensing area, and the normal direction of the first sensing area is different from the two normal directions of the two second sensing areas. The ultra-wide-angle passive infrared sensing device can effectively improve the infrared sensing angle.

The invention relates to an energy-saving type human body induction small night lamp, and relates to the technical field of energy-saving lamps, the energy-saving type human body induction small night lamp comprises a lamp holder and a lamp cover detachably installed on the front side of the lamp holder, a circuit board is fixedly arranged on the front side face of the lamp holder, a plug connected with a wall socket in an inserted mode is fixedly arranged on the back side of the lamp holder, and LED lamp beads are fixedly arranged on the circuit board; a photosensitive sensor for detecting light brightness and a passive infrared sensor for detecting infrared rays radiated by a human body are fixedly arranged on the side face, facing the lamp cover, of the circuit board. The photosensitive sensor suppresses the work of the passive infrared sensor after the optical signal is higher than a threshold value, and relieves the suppression of the passive infrared sensor after the optical signal is lower than the threshold value; according to the small night lamp, when the ambient light is sufficient, the photosensitive sensor inhibits the passive infrared sensor from working, and invalid lighting of the small night lamp is avoided; only when illumination is insufficient (such as at night) and the passive infrared sensor detects 8-14 [mu] m infrared radiation of a human body, the circuit is conducted to enable the LED lamp beads to emit light, and energy waste caused by continuous lighting at night is avoided.

Systems and techniques are provided for sensor device. A sensor device may include a housing, a lens inserted into a first opening of the housing, a metal mask covering a portion of the interior of the lens, a passive infrared (PIR) sensor underneath the lens and the metal mask, and a light pipe around the PIR sensor, the lens, and the metal mask. Part of the light pipe may be positioned above an activation mechanism for a button. An airflow gasket may be around the PIR sensor. A filter circuit board may be under the PIR sensor and connected to leads of the PIR sensor. A control circuit board may include the activation mechanism for the button. A backplate may include a slot for attachment to a snap of a magazine in the housing of the sensor device.

The invention discloses a target detection method and device, electronic equipment and a storage medium. The method comprises the following steps: detecting first information of target equipment; second information of the target equipment is determined according to the first information, the second information is used for indicating main and auxiliary working modes of a passive infrared sensor and a radar sensor associated with the target equipment, and the interference degrees of the passive infrared sensor and the radar sensor during respective detection are associated with the equipment operation scene type; performing operation control on a passive infrared sensor and a radar sensor associated with the target equipment according to the second information to obtain third information, wherein the third information is used for indicating whether a target object of a preset type enters a detection area of the target equipment or not; and determining whether to wake up the target device to execute the target detection task according to the third information. According to the technical scheme, the response speed of the target device for target detection can be improved.

The invention discloses a self-adaptive video recording method, a control device and a hunting camera, and relates to the technical field of cameras, the self-adaptive video recording method is applied to the hunting camera, and the method comprises the following steps: under the condition that a passive infrared sensor triggers a detection signal, the hunting camera is controlled to start basic video recording, and the basic video recording has an initial target recording duration; continuously acquiring a video picture shot in a video recording process, and identifying an object of the acquired video picture to obtain an object identification result signal; when it is determined that the target animal category does not exist in the video picture based on the object recognition result signal, video recording is stopped after the current basic video recording is finished; and when it is determined that the target animal category exists in the video picture based on the object recognition result signal and the time difference between the current recording time length of the hunting camera and the target recording time length is smaller than the first time difference, the target recording time length is prolonged. The invention aims to improve the hunting video recording capability of the hunting camera so as to improve the content effectiveness of the picture shot by the hunting camera.

A chopped PIR (C-PIR) sensor is capable of detecting both stationary and moving objects with a high degree of accuracy using a narrow infrared semi-transparent chopper to temporally shutter incident radiation received by pyroelectric sensing elements. Demonstrating a field of view of 110° (horizontal) and 90° (vertical), the C-PIR sensor can detect stationary objects located within 4 m of the sensor, and moving objects located within 8 m of the sensor with 100% accuracy.

The invention relates to security methods, while protecting against false activations, and it relates to a method for detecting a motion of objects that utilizes a passive infrared sensor. The invention may be used for security alarm systems. A method for detecting an object motion is proposed, the method comprising: detecting a motion within sensitivity areas of at least two pyrosensors and generating a signal from said pyrosensors.

An insect trap includes a combination of one or more components used to classify the insect according to a genus and species. The trap includes an imaging device, a digital microphone, and passive infrared sensors at the entrance of the trap to sense wing-beat frequencies and size of the insect (to identify entry of a mosquito). A lamb-skin membrane, filled with an insect attractant such as carbon dioxide mixed with gas air inside, mimics human skin so that the insect can rest on the membrane and even pierce the membrane as if a blood meal is available. An imaging device such as a passive infrared sensor or a camera gathers image data of the insect. The insect may be a mosquito.