Reflection 10

This week I did some research on PWIT .

Key themes

  1. 《Game-City: a ubiquitous large area multi-interface mixed reality game space for wearable computers》

Main Point: This paper presents a new wearable computer interaction and entertainment system that provides an interactive physical and mixed real computer environment that can span large areas of multiple users and can be extended to the entire city. Our system is called “Game City” is a manifestation (ubiquitous, tangible and social) -based mixed reality realistic wearable (MR) game space that restores the social aspects of traditional games while also Maintain the fantasy features of the excitement of traditional computer entertainment.



Main Point: This website gives us some list of devices that have been geared towards

entertainment purposes.



Main point: This paper talks about different entertainment activities in wearable



 Themes analysed 

  1. The first paper mainly focused on development and application of virtual reality system, the paper analyzed the structure of a complete virtual reality system for reality game. That is a VR system should contain three parts-, geometric modules, scene modules and functional modules, it has satisfied the information for my research. Studying the computer graphics technology and introduced it into the virtual environment. In addition, the paper successful introduces the texture mapping and tree scene modelling technology into the virtual environment modelling and solid geometry modelling. The system creates a realistic virtual environment while controls the taking resources at a lower Level. The paper focuses on creating of the functional modules in the virtual system. This project realized elevator technology assessment virtualization successfully. Finally, the paper proposed an object-oriented virtual reality system interface technology. It tells me about the technology that wearable technology needs in entertainment, Analyzing the advantages and application development process of the interface technology. In addition, the paper uses object-oriented technology, the developed two types of virtual reality systems communication interfaces, including serial interfaces, and motion control card control interface. The successful development of these two types of the interface has a strong versatility and flexibility which connected the virtue world and real world. Expand the scope of application of virtual systems. All of this content provides a good idea and basic knowledge can give us some technical support for the future wearable technology. When I read this paper, I can understand how people and wearable technology interact with each other.
  2. The second one is a website, I can find some entertainment equipment on it and click one wearable technology which I want to see then I can see the details, including design and some features, it will make it easier for me to understand these devices. Compared ordinary wearable technology and the wearable which has entertainment function, I can find some difference between the two types of them so I can know some special parameters and technology from entertainment equipment.
  3. last paper talks about personal entertainment in our wearable technology like Pokémon go! on our phone. This game is a typical AR(Augmented Reality)technology, let the virtual things appear in our lives, the shining point of the phone game, attracted the attention of most of the people, let people realize the market for Virtual Games. These virtual games have been widely developed, providing many interesting games for virtual devices, let virtual devices trading volumes are far higher than before. Some wearable technology can also provide shopping, watch a movie and more entertainment activities. It can let me know lots of entertainment activities that wearable technology can do.




Research Reflections 9

This week I still focus on smart jewelry.

At present, smart jewelry’s functions only focus on health, mobile phone reminders, single function. Most of them don’t have entertainment functions.At present, there are many technical problems that cannot be solved: the battery capacity is small, the chip size is difficult to narrow, it lead to smart jewelry be more bigger, chip technology is not mature. This makes smart jewelry “aborted” in recent years, in a not mature scale in the background, much smart jewelry market have a severe lesson, brought a painful price to the downstream terminal distributors. Internet jewelry is engraved with “bulky”, “technologically immature” impression. (J. Al-Muhtadi, A. Ranganathan, R. Cam & M.D. Mickunas, 2002) I think smart jewelry should refer to as “Internet jewelry”, through the combination of jewelry and Internet to achieve some functional things. Capture the market by through entertainment functions and services, earn other consumer profits from service.


Smart jewelry, at present I can define they are wearable smart jewelry. For me, I think it is different between the traditional jewelry and jewelry industry, wearable smart jewelry is a kind of “core” products, but they must have some new thing.


By looking up materials to find out current market, most of the smart jewelry are stainless steel intelligent jewelry and ceramics smart jewelry. A lot of them aren’t really jewelry. They’re mostly accessories, just wear your fingers or neck. The jewelry which we always called, they usually have precious metal and gem products. At present, smart jewelry’s functions only focus on health, mobile phone reminders, single function, they can replace the likes of smartphones, users need more convenient and more simple products. Intelligent is not jewelry’s direction but accessories are, especially in my country, because some limits in China consumption concept, intelligence is bound to enhance the functionality of luxury goods, have a negative effect for the development of potential consumers of jewelry. Intelligent, is bound to increase some electronic components, women are not sensitive to this, the value of recognition is not high. Therefore, I think smart jewelry should referred to as “Internet jewelry”, through the combination of jewelry and Internet to achieve some functional things. Capture the market by through functions and services, earn other consumer profits from service.


For Internet jewelry, it also faces other problems, compared with the smart watch which price only need few hundred dollars, Internet jewelry tens of thousand dollars price is a disadvantage. For new things, consumers are more willing to pay for the smartwatch because them the price is relatively cheap. Secondly, under the restriction of the intelligent chip, while Bluetooth can smoothly be connected with jewelry, how to ensure the beauty of Internet jewelry design are also big problems that every jewelry manufacturer needs to solve.


At present, there are many technical problems that cannot be solved: the battery capacity is small, the chip size is difficult to narrow, it leads to smart jewelry be bigger, chip technology is not mature. This makes smart jewelry “aborted” in recent years, In a not mature scale in the background, many smart jewelry market have a severe lesson, brought a painful price to the downstream terminal distributors. Internet jewelry is engraved with “bulky”, “technologically immature” impression.

In order to win a broader market, Internet jewelry need pay addition to the development of chip technology and jewelry technology continues to strengthen and also should pay more attention to the jewelry industry and other industries cross-border integration.



Research Reflections 8

In 2013, we felt some impact of wearable technology in education, communications, navigation and other fields. However, the greatest potential should be in the field of healthcare. Now, wearable technology has been used to revolutionize healthcare through assisted surgeon surgery and real-time access to electronic medical records. The potential of wearable technology in the medical field is more than doctor’s assistant. In 2014 wearable devices tracked user’s heart rate, blood pressure and blood oxygen levels, patients can track their health status. So maybe in 2018, shipments of wearable devices will be expected to reach a million units.

Traditionally, healthcare information is usually paper-based. Integration synthesis and analysis different data are difficult and costly, but healthcare needs to be developed more economically and more evidence-based. In addition, some regulatory rules based on privacy security, such as HIPPA is preventing sharing healthcare data.

If people want to succeed to use wearable health technology, it is necessary to find ways to develop networks that allow information access and provide support to the back end. This has been achieved on a small scale: Fitbit users and other health tracking products can see their own personal data and compare it with other users.If there is a network that can be seamlessly connected to a wider population then more meaningful data comparisons and can be made to analyze useful information. This could promote wearable health technology sellers to work with institutions national networks and access large-scale health data. The network can integrate data collected from wearable devices and other health data, create a complete health community.Create a healthy community and collecting data from it, is a way to package valuable health data. By bringing people who have the same interests, such as losing weight together, wearable becomes a mechanism for building interaction and compiling information simultaneously. It’s a reasonable way: you know about people’s health, you can more effectively keep them healthy.

For example, through the electronic health record of patients in physical examination, medical treatment and so on, we can understand the allergic situation, health history and medical situation. With the integration of data collected by wearable devices, health providers can be more complete and basic real-time data to treat and manage individual patients and common patients.



Research Reflections 7

This week I found some problems of PWIT need to slive

1.Accuracy and efficiency
Now wearable equipment and smart phones often have three accelerators, an accelerator error will have a big impact in the overall situation. So, if they have more sensors, the monitoring effect will be much better. For example, we can see heart rate monitoring, skin temperature monitoring and so on, the comprehensive consideration of the data is very important, but it is also very difficult.When we deal with the “personal health” problem, “accurate enough” is not enough and may mislead the user. In the medical field, they need do a lot of careful and meticulous investigation, although it looks difficult in the field for wearable equipment, but these devices still need to be more accurate.

 2.Specific occasions, specific product form
In 2013 CES, companies come up with their own wearable equipment, some are wristbands, some are chips, some are watches and some looks like jewelry or clothes. Obviously, manufacturers are trying to different methods. So, the question is about future equipment.In the future people will only wear a type of equipment or will different types of wearable technologies in different occasions?
With the weather changes we will change clothes, in the future do we change wearable equipment just because of our behaviour changes? But there is an important thing that people use a wearable device when they are passive in recording data do they like a sustainable device?


3. Guidance and advice
The core of wearable equipment is encouraged people change their living conditions, do more exercise. Anybody sculpting coach will tell the trainees, maintain a new habit of changing the living habits is very difficult. So for a trainee, lose a little weight is not successful. So many wearable equipment manufacturers and somebody sculpting center have a cooperate to make sure users can achieve the goal. This device + service model may become a mainstream in the future. Data analysis experts can also make a more direct and more feasible method based on the recorded data.


3. Basic defects
Some people who use traditional electronic watch change their battery once a year or two years, they may not accept recharged every day. A smartwatch battery capacity must take into account the fuselage design, so the current we can see many smartwatch batteries only have hundreds of millionaires. The battery capacity is too small will dramatically decrease battery life, this is the manufacturer’s problems. Nowadays, including Android Wear devices, Apple Watch, etc technical barriers are still biggest reason, this early intelligent smartwatch just moves some technology from a mobile phone, only the field of proprietary technology has a new breakthrough can solve these basic defects.


Some minor problems.

High return rate. Some bracelets are easy to damage, many users can not charge and high repair rate.
Material issues. Some users use Fibit bracelet them the material of the bracelet leads to allergies.
Data Accuracy. For example, some smartwatch or bracelet, if you just not exercise bracelet will still think you are in a state of motion and calculate the corresponding consumption of calories and other information, but in fact, you did not consume energy.
Privacy issues. People use google glass, they can blink their eyes to control the camera, you do not know what time you were at the shoot. In the cinema and other places which prohibit take pictures and video, people use google glass can silently record the whole movie or in the absence of permission to take pictures.
Security issues. By some user who has been used google glass, they need to re-focus when they look at the small screen if they can not see the road it is dangerous.


Research Reflections 6

Some tchnoligies in PWIT

1Display technology

Currently used in intelligent wear equipment in the common display technology, including thin film transistor liquid crystal display, active matrix organic light-emitting diodes, organic light-emitting diodes, light-emitting diodes and electronic paper. In addition, the current three kinds of wearable display technology are:

(1) micro-display: such as silicon-based liquid crystal, micro-electromechanical systems / digital light processing, laser scanning and so on.

(2) Flexible display: At present, the Japanese semiconductor laboratories, Apple, Samsung, LG, Philips, Nokia and other giants are actively developing and promoting flexible screen, battery and man-machine interface system and patent layout.

2 Chip

Intelligent wear device chip can be divided into three categories:

(1) to the existing mobile phone processor as the core of the chip: such as Samsung Galaxy Gear used Exynos 4212, Google Glass used OMAP 4430, its advantage is to effectively use the existing platform to accelerate the development and powerful.

(2) based on single-chip (MCU) products: such as Pebble watches, FitBit One bracelet is based on ARM Cortex-M structure of the MCU products.

(3) specifically for smart wear device chip: Intel introduced for wearable device chip program Intel Edison is a dual-core chip, part of the support Andrews system, the other part is to support real-time operating system; Qualcomm introduced Toq processor, wearable equipment The JC4775 integrates CPU, Flash, LPDDR, Wi-Fi, Bluetooth, FM, NFC and pressure sensors. The JC4775 integrates CPU, Flash, LPDDR, Wi-Fi, Bluetooth, FM, NFC and Pressure Sensors. , Temperature and humidity sensors and all other devices.


3 Data calculation processing technology

Human-computer interaction output interface or feedback, including text display, data analysis, voice feedback, dynamic or virtual images, etc., all of these output interface must be presented through the content computing system analysis, such as Augmented Reality (Augmented Reality, AR), virtual Reality (VirtualReality, VR), AR combined with the mixed reality of the mixed reality (MixedReality), three-dimensional projection and other real content calculation and environmental perception analysis and a variety of measurement and analysis, such as blood pressure, blood oxygen, heart rate, pulse, body temperature and so on. In addition, cloud computing, large data and other related data processing technology, intelligent wear equipment can be collected in a timely manner, accurately sent to the background, through the collection of data for effective statistical analysis, users can provide reasonable advice.


4 Data interchange technology

The value of smart wear equipment is not only a simple hardware function but also hardware and software services and data services. However, many manufacturers and cloud applications are closed, there are data islands, cannot share data with other devices, the lack of open industry, the ecological environment. Therefore, we need to open and unify the interface between intelligent wear equipment, mobile phone and cloud service, promote the flow and sharing of information, eliminate data island, and create more value for users.”

“Intelligent wear equipment and cloud platform interaction, according to the different ways of communication can be divided into two kinds: one is intelligent wearing equipment with communication capabilities, can directly interact with the cloud platform; the other is wearing equipment does not have the ability to communicate, Need to interact with the cloud platform through mobile phones.

Research Reflections 5


This week I focus on smart chip,I find nine different chips which is popular in wearable technology.


A large on board system (SoC) for high-performance Zigbee applications, launched by industry pioneer TI, which produces the first integrated circuit. It contains a powerful micro controller based ARM Cortex M3 (MCU) system, this system has up to 32K on-chip RAM and 512K on-chip flash memory, which makes it possible to deal with security, including demanding applications and wireless download complex network stack. Very suitable for: Internet of things, intelligent lighting systems, home lan.

CC2538EMK CC2538 Evaluation Module Kit

Main advantage

1、Powerful security accelerators can achieve rapid and efficient authentication               and encryption while CPU handles application tasks.

2、Includes a powerful debugging system and an integrated drive library.

3、Quick wakeup from sleep can be achieved, and energy consumption during                 cycle time tasks is greatly reduced.

Evaluation: the dynamic properties of the Internet of things, home automation, and lighting systems determine the need for high performance and high flexibility to meet the manufacturer’s needs for different memory, security, and standard support. CC2538 is a unique market unique product that not only has high integration, but also supports ZigBee and other IP based standards such as 802.15.4 and 6LoWPAN IPv6.


CContinue to lead by TI, a product that can connect any low-cost, low-power microcontroller (MCU) to the Internet of things (I0T). CC3100 wireless networking solution is the new SimpleLink Wi-Fi series of products, this product can greatly simplify the realization of Internet connectivity. At the same time, all protocols for Wi-Fi and the Internet, which minimize the requirements for host MCU software. Very suitable for: networking, cloud connectivity, intelligent socket.

Main features and advantages:

1、A complete solution of the platform, including a variety of tools and software, sample applications, users and programming guide, reference design and TI E2E to support the community

2、With the built-in security protocol, to provide a robust, durable and simple security experience

3、You can connect to either 8, 16, or 32 bit MCU via the SPI or UART interface

Evaluation: CC3100 has the industry’s lowest power consumption, high flexibility, enabling customers to easily add embedded Wi-Fi and Internet capabilities to a wide range of home, industrial and consumer electronics products.



The absolute Xtrinsic intelligent pressure sensor, developed by Freescale, an embedded processing solution vendor, provides very accurate pressure and altitude data with the ability to adjust the sampling frequency with very low power consumption and is ideal for: wearable Equipment, high precision measurement, inertial navigation.


Key Features and Benefits:

1、With compensation, direct reading (no software required)

2、Intelligent functions, including digital output, two for automatic wake-up interrupt, the minimum / maximum threshold detection and automatic data acquisition

3、 Can be processed in the local sensor data, reducing the communication requirements with the main processor, so that the use of MCU control

Evaluation: The MPL3115A2 has a variety of intelligent functions, eliminating the need for mobile devices, medical and security applications for data processing, which for the ALICE implantable wearable equipment is undoubtedly an urgent need.


A $ 2.4GHz low-power RF transceiver for ZigBee, IEEE 802.15.4, 6LoWPAN, RF4CE and ISM is a true SPI-to-antenna solution from Atmel’s industry leader in microcontrollers / processors. All RF components, except antenna, crystal, and de-even capacitors are integrated in the chip. Receiver sensitivity of -100dBm, programmable output power from -17dBm to +3 dBm, very suitable for: ZigBee solution, RF4CE and ISM applications.

Key Features and Benefits:

1, ultra-low working voltage 1.8V-3.6V (internal regulator)

2, the sleep mode current is 0.4uA, the maximum transmit power when the power consumption of 13.8mA

3, AES 128-bit hardware accelerator, fully integrated, fast to establish PLL support for frequency hopping

Evaluation: The power of the AT86RF232 transceiver is 50% lower than competing products and has all the essential features of the latest wireless applications that support the consumer market segment, including excellent RF performance, lower power, high link budget And antenna diversity.



A dual-channel serial output ADC for smart antenna systems, powered by ADI, a leading provider of data conversion and signal processing technology, is designed to provide solutions for high performance, low cost, small size, multi-functional intelligent communication applications , But also for general software radio, ultrasound equipment.


Key Features and Benefits:

1, the on-chip PLL allows the user to provide a single ADC sample clock, the data rate clock multiplied by the PLL by the ADC sampling clock

2, the exclusive differential input at the highest 250 MHz input frequency still maintain excellent signal to noise ratio (SNR) performance

3, when two ADC share a data link, the data rate can be as high as 3.2 Gbps

Evaluation: This dual-channel ADC core uses a multi-stage, differential pipelined architecture, and integrates the output error correction logic, each ADC has a wide bandwidth, differential sampling to maintain analog input amplifier, supports a variety of user input range.


An application processor powered by Freescale that meets the requirements of advanced performance, data connectivity, and graphical user interface capabilities for next-generation automotive dashboards and navigation systems for graphical rendering of human-machine interfaces, navigation, video processing, and Display, audio playback.


Key Features and Benefits:

1, support dual display and a variety of display technology options, including TFT LCD, LVDS, analog TV format (composite, component, RGB) and standard VGA

2, hardware accelerated graphics post-processing, display quality enhancement, video and graphics portfolio

3, advanced security features support highly reliable boot, encryption engine, random number generator and tamper detection

Evaluation: This processor is ideal for applications that require a high-performance user interface for 2D and 3D graphics cards, one or two high-resolution displays and highly integrated systems, and apply advanced consumer electronics user experience and device connectivity to the future Of the car system.


And a very good device, and CC3100 are SimpleLink family, a Wi-Fi 802.11b / g wireless network processor, this processor simplifies the implementation of Internet connectivity, so become the use of any low cost and low power The ideal solution for embedded applications with MCUs is ideal for: home appliances, home automation, home security.

Key Features and Benefits:

1, with millions of instructions per second (MIPS) and low-cost microcontrollers (MCUs) running with a compact memory package

2, integrated crystal and power management

Evaluation: CC3000 has the best RF performance in its class, can significantly reduce development time, reduce manufacturing costs, save board space, simplify the certification process, and greatly reduce the RF professional knowledge requirements.


A high-performance voice-capture system-on-a-chip, a complete system-on-a-chip (SoC) solution, is available in the industry’s high-performance, ON Semiconductor, which provides advanced dual-microphone noise reduction capture applications in voice. The chip keeps the voice more natural even if the speaker is farther away from or without voice clarity with the microphone, providing unparalleled best degree of freedom for any portable audio application with voice.


Key Features and Benefits:

1, can customize the ability of multiple voice recording mode and adjust the unique needs of the algorithm

2, advanced dual-microphone noise reduction algorithm, the conference mode 360-degree voice collection effect

3, complete system-on-chip (SoC), ultra-low power, ultra-small form factor

Rating: R261 offers a simple choice, in any place to enjoy a clear and comfortable voice communication. This product uses advanced noise reduction technology, so that all kinds of portable consumer electronics manufacturers can significantly improve the voice quality and customer satisfaction.


A Freescale’s first Xtrinsic high-precision 3D magnetic sensor, representing Freescale’s further expansion of the consumer sensor products. The MAG3110 is a small, low-power, digital 3-axis magnetometer with a wide dynamic range that can be run on printed circuit boards (PCBs) with external magnetic fields for 3D motion control and directional, wireless mouse and Fixed-point equipment, navigation and location services.

Key Features and Benefits:

1, configure the GPS device, can achieve the direction of positioning services

2, combined with the acceleration sensor to provide full tilt compensation electronic compass function

3, perfect inertia, pressure and touch sensor rich product portfolio

Evaluation: MAG3110 has high resolution, low noise and ultra-small size and other characteristics, the magnetic field where the magnetometer to measure the magnetic field and the magnetic field generated by the circuit board device, and the total of the two local magnetic field, combined with the 3-axis acceleration sensor When used, you can obtain accurate compass heading information without direction.

Research Reflections 4

This week I looked for some smart clothes and found out that in order to prevent potential Zika virus some athletes in the Rio Olympic Games put on specially crafted antimicrobial clothing to resist mosquito bites. This is more famous smart clothes, there are many not known only in the study of clothes.

Application of technology is only a microcosm of clothing and technology in recent years. With the upsurge of wearable devices spreading from the wristbands and glasses to the clothing field, the integration of science and technology and the Internet has broadened people’s imagination of clothing and also satisfied people’s expectations for personalized clothes. Of course, smart clothing for further development, but also in the technical research and material development have more acts.

Not long ago, a well-known domestic clothing brand released a new smart jacket. Unlike traditional jackets, this product has been designed with 17 invisible pockets. It has a recording step, control music, remote control camera, lost alerts and other functions, intelligent design to meet the multi-scene business travellers dress needs. At present, the application of smart clothing mainly focuses on intelligent living scenes and sports health information monitoring.

Not long ago, Google and a clothing brand cooperation introduced a smart jacket. With a multi-touch sensor on the cuffs, users can play music by simply touching and sliding the cuffs on the jacket, plus other components, plus the ability to answer the phone and watch the map. This design is good news for cyclists, security guards, drivers and more because they do not have to risk their cell phones.