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Vayyar (Market (other application (Retail (Smart Shelves
1.Track consumer…
Vayyar
Market
Smart home
Sensors monitor real-time activity around your house, while maintaining your privacy.
Detect and track location, movement, presence, position and vital signs without cameras or complicated wearables.
Monitor a range of motion from a baby’s breathing to the presence of an intruder.
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other application
Retail
Smart Shelves
1.Track consumer movement around shelves and aisles
- Analyze customer intent through gestures, movements and interest level for products
3.Monitor shelf inventory
Robotics
Personal & Commercial Robots
1.Classify and map location of obstacles in a home
2.Complete various automated tasks around homes, health institutions or offices
3.Provide navigation assistance for rooms or large spaces
Medical
- Early-stage breast cancer detection
2.Tumor identification in under 5 seconds with 4D imaging of breast tissue 3.Handheld, low-cost, non-ionizing, painless system
Smart Office & Lighting
1.Keep count of people in a room or defined area
2.Monitor employee and occupant location and health for office automation, security and energy efficiency
3.Receive real time updates about injuries, unconsciousness and location during emergencies
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How It Works
RFID technology
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high-performance DSP with large internal memory,
Vayyar’s sensor executes complex imaging algorithms without any need for an external CPU.
數位訊號處理器
(DSP:Digital Signal Processor)
數位訊號處理器(DSP)屬於「精簡指令集處理器(RISC)」,它的核心為「乘加器(MAC:Multiply Add Calculator)」,可以在一個時脈週期內進行一次「乘法與加法」運算。舉例來說:假設 DSP 的工作頻率為 1GHz(1G = 10 億),代表每秒鐘可以同時完成 10 億次「乘法與加法運算」。DSP 的代表廠商包括:德州儀器(TI, TXN-US)、亞德諾(ADI, ADI-US)、恩智浦半導體(NXP, NXPI-US)。
DSP 的特色包括:工作頻率高、運算功能強、晶片面積大、CMOS 數目多、成本高、耗電量大,一般來說 DSP 由於一個時脈週期內可以進行一次乘法與加法運算,因此工作頻率不需要像 CPU 那麼高,例如:Intel 的 CPU 工作頻率可以高達 4GHz,但是 TI 的 DSP 工作頻率只需要 2GHz,雖然看起來 DSP 好像比 CPU 或 MPU 功能強大,但是使用到的 CMOS 數目很多,通常價格並不便宜。
基本上多媒體的影音壓縮技術(MP3、JPEG、MPEG 等)、語音辨識(Voice recognition)、噪音去除(Noise reduction)、影像辨識(Pattern recognition)、通訊系統(3G WCDMA/4G OFDM)等訊號處理演算法大部分都是乘加運算(SOP),因此使用 DSP 比 CPU 或 MPU 更合適,假設要花費 5 個加法運算才能完成 1 個乘法運算,則在進行乘加運算(SOP)的時候 DSP 的效能是 CPU 或 MPU 的5倍。
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