Development of complete sensing systems
CURTAIN SENSOR WITH METAL MIRROR
The Curtain sensors are installed in front of windows and only protect the outer perimeter of the building. People
moving inside the house will not trigger the alarm. Direction
recognition curtain sensors only trigger when objects enter the premises from the outside.
Outdoor performance of TODOS curtain sensor of movement detection of a man at different distances between the sensor and a man.
Relevant Paper:
[1] “Non-Imaging Digital CMOS-SOI-MEMS Uncooled Passive Infra-Red Sensing Systems”, IEEE Sensors, 2020 (Early Access) DOI: 10.1109/JSEN.2020.3022095. IEEE Sensors Journal, Vol. 21, Issue3, Feb. 2021, pp.3660-3668.
STHS34PF80 with the Fresnel Lens can detect man motion and presence up to 12 meters.
Main Features
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Improved temperature sensitivity
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Integrated Digital Signal Processing for intruder detection
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Detects both presence and motion
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Power efficiency for battery operation
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Can operate at high temperatures
Relevant Papers:
[1] “Modeling the Performance of Nano Machined CMOS Transistors for Uncooled IR Sensing,” IEEE Trans. on El. Dev., vol. 64, no. 11, pp. 4657-4663, 2017, doi: 10.1109/TED.2017.2751681.
[2] "Modeling the Performance of Mosaic Uncooled Passive IR sensors in CMOS-SOI Technology", IEEE Trans. on Electron Devices, vol.65, no. 10, pp. 4571-4576, 2018, doi: 10.1109/TED.2018.2863207.
INDOOR MOTION AND PRESENCE SENSOR
NDIR – IR OPTICAL GAS SENSORS
STHS34PF80 is the sensor of Non-Dispersive Infra-Red (NDIR) optical gas sensors.
Examples:
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CO2
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CO
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CH4
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And More
The full system for CO2 contains:
TMOS Detector with 4.26um BP filter
TODOS Technologies IR Emitter as IR source
Gold Coated Optical Path
Polytetrafluoroethylene (PTFE) Filters to Reduce the Humidity Influence
Hardware for Sensor Signal Processing
Powering and Communication with PC via USB
Communication with Bluetooth may be introduced
Dedicated Evaluation Software Firmware
Unique Features:
The system can detect a wide range of gas concentrations (0.04% -10%) with accuracy of 0.01%;
At a flowing environment
Examples of applications:
Breath Analysis:
Wellness
Medical
Quality of air at:
industrial plants
homes
Car Cabins
Agricultural greenhouses
Agricultural packages
PROXIMITY SENSOR
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Human presence is detected by STHS34PF80 covered by standard gadget glass – Gorilla glass.
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A sensitivity of STHS34PF80 is sufficient for the proximity detection through the Gorilla glass gadgets.
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STHS34PF80 can represent a worthy alternative to market competitors.
Response to human hand:
Non-contact remote temperature system
Based on STHS34PF80
unique features:
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Low cost
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Small size of 3.2mm*x4.2mm*1.5mm
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Mobile
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Battery operated
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Wireless
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Remote temperature sensing system
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Temperature accuracy of 0.2°C
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Temperature resolution 0.01°C
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can be calibrated for industrial applications at various environments and target temperatures (such as food, semiconductor, chemical, and material processing)
OUTDOOR VIRTUAL WALL SENSING SYSTEMS
The main advantage of the STHS34PF80 is its ability to detect presence as well as movement direction in this product. Furthermore, these sensing systems exhibit excellent stability, repeatability, and low noise at elevated temperatures. They are not sensitive to mechanical vibrations that affect pyro sensors. The overall performance features render this product
(Differential STHS34PF80) most suitable for securing virtual walls at outdoors. These sensors may be useful for securing fences and surroundings of important zones. By combining STHS34PF80 with True Differential STHS34PF80, both presence as well as movement may be detected even at harsh environmental conditions (sun, rain, fog).
The moving target gradually fills the Field of View of the sensors if the measurement is faster than target’s speed. At the same time, the background, which is significantly farther and bigger than target and fills the Field of View of both sensors simultaneously, is removed. Thus, the sensor operates at outdoor conditions and is not affected either by the sun or rain.
