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Share: Slideshow: Making sense of connected sensors  

2012-11-22 10:39:32|  分类: IC design |  标签: |举报 |字号 订阅

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http://www.eetimes.com/design/smart-energy-design/4401554/Slideshow--Making-sense-of-connected-sensors

对里面那个测脊柱弯曲的比较感兴趣。
不知道自行车车轮播放影像是给谁看。还是停下休息的时候当电脑用?如果是这样倒是很方便。不过更希望等可卷曲的屏幕出现后电脑能像手帕一样轻便。
看到日本的自主导航系统就想起我们的北斗。似乎快商用了。这么多年,听说目前为止北斗项目还是各公司自己开发自己的,进展肯定快不了。也许应该国家机构统一规划下。


Slideshow: Making sense of connected sensors

Junko Yoshida

11/19/2012 12:15 PM EST


YOKOHAMA, Japan – The Embedded Technology 2012 trade show here focused on five smart technologies: energy, healthcare, agriculture, automotive and transportation systems as well as mobile and cloud computing.
 
The show floor bristled with sensors that can go into virtually anywhere, from shoes and cars to the water standing in rice fields.
 
Anticipating a world of ubiquitous sensors and connected networks, vendors demonstrated solutions that addressed such fundamental questions as:
 
  • How will new sensors be powered?
  • How do we build systems that can handle multiple sensors in parallel?
  • How quickly can we design and tune different analog front-end circuits specific to each type of sensor?
  • What protocols are necessary for sensors to communicate among themselves?
  • And, at what frequency range can sensors be wirelessly connected?
 
Below are a dozen examples of the devices, embedded systems and applications that are making sensors ubiquitous.
 

 
 

Murata Manufacturing showed off a running shoe embedded with clear piezo film devices and a Bluetooth smart module. Five small patches of piezo film placed on the sole can detect friction and foot movement inside the "smart" shoe, allowing it to measure and help regulate the user’s walking or running habits.


Transparent LCD for display windows

 
Digital signage specialist Ittocan demonstrated a transparent, interactive LCD display. Ittocan used Samsung’s 46-inch transparent display combined with a Web camera connected to a set-top box running Windows Embedded.  As a passerby waves his hand in front of the display window, rose petals superimposed on the transparent LCD screen disperse in response. 



Smart rice paddies
 
 
"Smart agriculture" was a hot topic at the Embedded Technology show. Sensors installed in rice fields can detect water temperature and sense pH scale, for example. Power remains and issue, however. Fujitsu Semiconductor said it has developed an ultra-low power step-down DC/DC converter for piezoelectric power sources and small solar cells. Farmers can then use solar panels, water mills or vibration equipment built near rice fields to generate power.


Smart home nets

 
Renesas Electronics' smart home diorama illustrated the Home Energy Management System. The embedded system includes solar panels on the roof, LED lighting in each room, air conditioners, heat pump, smart meter and electric vehicles all wirelessly networked at 920 MHz  and linked via "Echonet Lite" communication protocols.



Fisheye surveillance camera 

 

Panasonic demonstrated a small, wide-angle camera requiring no mechanical systems for pan and tilt. It used a grating lens that reduces the thickness of a fisheye camera lens from 35 to 16 mm, digital micro lens technology for image sensing and a new image processing chip for viewpoint control.



Monkeylectric

 
The 3-D computer graphics company called Eyes, Japan, showed a LED-lit bicycle developed by the U.S.-based Monkeylectric. Along with LED lights, the bike comes with a control unit and memory chips to create a unique display within a bicycle wheel by downloading images and video from a computer directly to the bike.



Smart Analog

 

Calibrating a different analog front-end design for each sensor often requires much trial-and-error. Renesas Electronics demonstrated a platform called "Smart Analog" designed to minimize the time-consuming tuning process of converting analog signals generated by a sensor into a signal appropriate for an MCU-controlled subsystem. Shown is a unit based on Smart Analog that integrates a 16-bit MCU and analog front-end in one chip. It is capable of controlling each of the 12 different sensors embedded in the system.


'Touchless' is in!

 

 
Murata Manufacturing demonstrated a touchless motion sensing device integrated in a tablet. Company engineers integrated a separate, small “touchless” optical interface that is integrated with an ambient light, proximity and motion sensor. A user, with a wet finger for example, can turn a page displayed on the tablet without actually touching the screen -- ideal for the chef with messy fingers.



Echonet Lite tablet

 

NEC’s Echonet Lite-compatible tablet is capable of communicating with different home devices on the Echonet Lite network (ranging from a smart meter to solar panels, appliances and electric vehicles). It is being used here to adjust and control home temperature.



Kinect measures scoliosis
   
 

Toyo University developed a Kinect-based system that detects and measures early signs of scoliosis, the curvature of the spine. The patient stands upright in front of Kinect – connected to a PC. The image-processing software generates a 3-D image, eliminates background noise and compares it against a database. A light-weight, low-cost system with good image reproduction fidelity allows patients to be test regularly, researchers claimed.


Embedded for automotive

 

Toshiba unveiled an updated version of its own embedded image recognition system called Visconti 2 that is designed to operate in real time at lower power. It features a Histogram of Oriented Gradients accelerator for human detection, which the company claims is ideal for embedded vision apps for automotive. The image above shows views processed from four image sensors embedded in a car.
 
Visconti 2, also integrated with 4 sets of media processing engine based on VLIW, executes simultaneously multiple applications running various image processing algorithms.


Japan's nav system

 

As Japan readies its own regional satellite navigation system, Quazi-Zenith Satellite System (QZSS), embedded system developer Core Corp. demonstrated a signal receiver unit designed to increase the efficiency of positioning information. Core's QZSS-plus-GPS system can handle both QZSS “availability enhancement signals” to improve GPS coverage and QZSS "performance enhancement signals" which improve the accuracy and reliability of GPS data.

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