Mobile GPS

The mobile platform on the GPS navigation function realization, along with the development of technology, surely there would be more applications.

summary

From the cell phone and GPS composition, which means it not only possess the normal cell phone communication function and want with GPS function. Mobile communication function everyone is very easy to understand, but what are function function GPS? New problems come out, what's a GPS? GPS are what function? These problems to solve it, can from a search engine to search answers. GPS primary function of only one is positioning, and GPS technology with other technologies combining will derive a variety of functions, the most common is navigation capabilities. Now say GPS phone also is navigation capabilities of mobile phones, so the GPS phone also can be called a GPS navigation mobile phones or with GPS navigation functions of mobile phones. Actually with the development of technology, 3G networks of opening, GPS phone there would be more functions, such as remote monitoring function, saiger interstellar 2046 mobile phones are has remote monitoring function.

function

Determine whether a mobile phone for intelligent mobile phones, and not to see if it support MP3, whether to support the HTML page views, whether to support the inserted memory card, etc. Function, but see whether or not they are one paragraph with operating system of mobile phones. That is to say, we want to see the operation system of procedure, expansible to see if it can support third-party software installation and application.

The operating system

Now in the market of smartphones were under different operating systems, they were:

1, Symbian OS (UIQ, Series60, Series90) Series80,

2, Windows Mobile (Smartphone), PC pdas.

3, Android operating system (Google development)

4, Palm OS

5, Linux operating system

6, domestic research production operating system

The previous three has become the mainstream.

Development trend

Many phone companies say GPS function in 2008 will be become mobile phone the standard configurations. It is predicted that in 2005-2009, mobile phone GPS solutions in compound rate will reach 86%. Along with the cost reduction and technical progress, many manufacturers and mobile terminal design enterprise being launched the corresponding solutions and products, mobile phone GPS chips and solution presents soft scheme for, power and rx sensitivity become key concerns. In the past two years, we are already on the market more and more difficult to find without camera, media player, the mobile phone. Today, we will see a location based on mobile phone service will show the same trend. GPS receiver volume continuously decrescent, reduce cost increasingly, so that in hand-held devices (such as mobile phone) on integrated GPS possible. Similarly, GPS receiver in power consumption is low, even has integrated many multimedia function, low power consumption of GPS receiver can ensure handset battery work long enough.

Multiple factors influence GPS popularity

GPS navigation service is one of the application, on your phone integrated GPS, can be very easily realize vehicle autonomous navigation, the user will no longer because lost delay their own travel, convenient and practical. More and more with GPS function mobile phone, in turn, would promote location services (LBS) development. Application through the phones LBS location information can breed out a lot of value-added services, such as helping users find nearby hotel, bank, traffic facilities, etc. This service will be the future information field a major emerging markets.

Another prompted on your phone integrated GPS function factor is the policy orientation, America and Europe and Japan E911 similar policy requirements in via cell phones alarm in providing precise location information. Although China has not similar mandatory policies, but this would be a global trend, China is also likely to join the team.

In addition, GPS phone accepted mainly with the extent of the following factors related:

GPS performance. GPS chip rx sensitivity, the higher the star search the faster the lower power consumption, use convenient, will more users will be more widely. U - blox of a new generation of products u in performance blox 5 - there will be great ascension.

GPS product design level. GPS signal is very weak, any disturbance affects its reception and product performance. Therefore GPS product design optimization degree of the product's performance will have great impact on GPS, thereby affecting the user product recognized and accepted degree. So u blox extremely values to customers - product development support, make each a customer development product can in the given conditions to achieve the best effect.

GPS system price. The number of users forever with the price of the product is inversely proportional. GPS system cost includes GPS module, GPS processor and related components and map price. These products are quite huge r&d input, resulting in GPS system of the cost and higher price. But with GPS application the number of users growth, GPS system prices are falling fast. U - blox is the most recent period GPS module prices fell setters.

Related service content and quality. Including GPS service suppliers, operators and the service content popularity, Map of precision and detailed degree; Product use convenient degree, etc. These recent are made rapid progress.

A - GPS scheme bestow favor on

At present the GPS in the market, there are all kinds of products, such as independent GPS receiver, soft GPS receiver (SoftGPS), based on application of processor GPS receiver (Host based GPS). SoftGPS and Host Based GPS all need in the application of the system CPU run on part of the program, users need to will the program integration in the application system, integrated difficult, the system's stability and extendibility by certain effect, by restrictions in terms of the real-time GPS performance also will play some discount. U - blox provide independent GPS receiver cost declining, and is easy to be integrated advantages, function also more stable and reliable, is advantageous and taking up less of the resources of the system, power consumption are low, so we think it will still be future market mainstream technological.

A - GPS makes instantaneous positioning becomes possible, u - blox will provide users with convenient solution for mobile phone manufacturers integrated design. At present, u blox GPS receiver - all with A - GPS function. U - blox provides two A - GPS solution: AssistNow Online and offline AssistNow. AssistNow Online is u - blox an end-to-end A - GPS scheme, GPS on start-up through access servers, that's keeping the stars calendar and ephemeris, accurate time information such as download, shorten the first locating time. AssistNow Offline different from AssistNow Online, does not need to start with the server connection is established, the user can at a convenient time through Internet downloads u - the size of the blox provide different ephemeris correction data files and shall be valid can reach 14 days, GPS receiver at start-up time can be calculated according to the data needed star calendar data, quick start localization.

U - blox 5 in hardware and software are doing the power optimization, low power consumption to 50mW. U - blox 5 design goal is stressing the battery-operated hand-held devices on the performance and power requirements. U - not only blox 5 optimized during normal working power consumption, also optimizes the capture stage on market power consumption, and some other receiver to capture the power stage than normal work when the big 2 ~ 3 times. Our receiver embedded power management module, can the CPU does not need full load at work, and user can reduce power consumption of the low power execution configuration more model, at the right time will buy for sleep mode, receiver is only 8 current dormancy muon A.

A variety of encapsulation provide flexible choice

Our - 160dBm of high sensitivity technology enables our receiver is allowed small size of the antenna, in a tall stacks of downtown shopping plaza, trains or such indoor environment tracking faint satellite signal. Moreover, our multipath eliminate algorithm can maximize eliminate due to a building reflected signals caused by suitable fur phenomenon, at the same time also can reduce interference signals caused by signal distortion impacts. With such technology, plus innovation system structure, make our receiver is very suitable for the signal conditions complex challenges environment, use.

U - blox offer innovative GPS and Galileo positioning technology, with single chip, chipset or module forms to provide users positioning technologies. U - 5 using a variety of forms blox chips or module encapsulation provide users with flexible choice. Recently some phone design companies, such as LongQi chose our LEA - 4S GPS module used in their latest mobile phone design. LEA - 4S very easy to integration, the cost advantage prominent, for the mobile design company for the fastest time to market, because our module design by the continuous optimization, before delivery after the strict test, cell phone designer should worry about our product's performance hidden trouble, the smooth will rapid product in the market.

U - blox lines are very abundant. We provide standard GPS products, high sensitivity products, automobile inertial navigation products, high precision, high precision measurement products shoushi products and support A - GPS products. As a Swiss company, u - blox consistently uphold the Swiss culture to product quality improvement request. Our factory to each piece of module will complete hardware and software test, to ensure that the user use the failure rate does not exceed 50PPM, strive to achieve the best level industry. Additionally, we have an outstanding technical support team, spread all over the world, for OEM and ODM customers the first-class whole technical support.

U - blox 5 is our forthcoming launched one of strong function latest product. We also have other several new technology and new project is developing process, such as technology r&d finish, the customer will be more easily in the PDA, smartphone and handheld devices such as UMPC on integrated positioning function. Meanwhile we in Galileo technology research also walked in world front. U - blox 5 on hardware have been able to support Galileo's requirements.

Many well-known manufacturers, such as nokia in succession claims on their all products add GPS function. This will allow us to see the GPS in many years market will continue to enjoy strong growth momentum.

Soft GPS scheme mature still need more time

According to the market survey report IEK, 2006, built-in GPS phone shipments about 104 million department, that number is expected to reach in 2011 380 million department. Will many clients at present development plan to see in the second half of this year will see cellphones GPS pop. Future GPS will be like now of bluetooth as popular, believe in 2008 or 2009, GPS function will become mobile phone standard.

Two factors influence GPS popularity

Now affects GPS popularity of factors are two points:

One is a higher price. Now in the market by using GPS scheme has two kinds. Most of them are hard GPS scheme, namely the GPS scheme contains RF and baseband (BB), such as: SiRF, Nemerix Atmel, Locate (Broadcom, Global optimisation techniques such as acquisition by manufacturers to provide such scheme, The second is soft GPS scheme, forthcoming GPS baseband and back-end main chip Host (multimedia applications processors) integration, just GPS add RF front, can form a GPS receiving scheme, such as beauty letter of GPS scheme. Relatively hard GPS scheme, soft GPS scheme undoubtedly on price has bigger advantage; But soft GPS scheme development with a long cycle and required Host has the strong processing ability. Current mainstream hard GPS scheme in 8 cost more than $, the cheapest also want in six dollars, Soft GPS cost basic $2 ~ 3 dollars. Relative to on the market now many whole BOM in $50 (or lower) mobile solutions speaking, GPS positioning in functionality also only in high-end market. So in order to penetrate the shipments huge ZhongDiDuan market, the demand for lower cost of GPS scheme.

2 it is GPS map business lag. Most used GPS navigation service friends have to complain: use the navigation map not promptly update even has a great error; By use of the map software in big cities is used for good, but in small city or county, maps accuracy is very low. So map services to raise the level of will surely promote the popularization of GPS application.

GPS scheme by hard softened

At present the GPS scheme biggest is the development trend of: pure GPS receiver chips and cell phone (or handheld devices, etc.) the chips (main processor) collaboration will be more closely, GPS scheme are "by hard soften". From the hard to soft GPS scheme, whole power consumption, volume and system cost more and more low, but development time and required main chip resources, the more suitable for the increasing amount application. In the long run, GPS baseband function will be main chip integration of soft GPS is eventually replaced, the development trend SiRF jan.30 previous billion takeover of palm micro, but also for layout software GPS market. But soft GPS scheme completely maturity need for a period of time.

Usually Atmel GPS chip in during normal working power consumption is about 62mW, but in low power consumption mode, the working current can low to 5 muon A. Atmel of the low power performance mainly comes from it in pieces used to become an advanced power management controller (APMC).

Normally, the ground receives the GPS signal strength is very weak. Especially in high stacks of cities, this kind of situation is more serious. A good GPS scheme, must provide very good rx sensitivity, achieves the accurate efficient GPS signals ability. Atmel GPS in cold start-up acquisition sensitivity can achieve 142dBm; - Its tracking sensitivity can achieve - 158dBm.

Atmel scheme advantaged

Yu bo currently only agent Atmel latest Antaris4 series GPS chip solutions. The Antaris4 both sets of slice Atmel chipset) scheme (and single chip (performance chip cluster generator attempts) scheme. Set piece scheme is: ATR0601 GPS receivers + ATR0621 GPS baseband, Single chip solutions are: ATR0630 GPS chips or ATR0635 GPS single chip. The two schemes are used Atmel of low noise amplifier (LNA) ATR0610.

We have introduced based on the 0625 and layer of CSR Atmel BC4 - EXT bluetooth G - the rid_device_info_mouse (GPS receiver) complete solution, customer if to do the G the rid_device_info_mouse product, can apply for to us the ready-made Geber and BOM. Our recent plan to use single chip GPS Atmel 0635 design a scheme for cell phone use of modules, we believe that this module will shorten the launch of our customers' GPS design cycle.

Four measures broken power dissipation problems

GPS market prospects are very wide. GPS application has been from traditional PND extends to mobile phones, ultra-thin computer (UMPC), a variety of consumer goods are beginning integrated GPS function. Future many applications will high-speed growth, PND (portable navigation equipment) is no longer dominate.

GPS phone accepted the key is fast response time and reliable navigation ability, good consumer experiences are most important. In addition, a rich variety of application is also make GPS were more important factors of user acceptance. Besides positioning and navigation outside, still include position SMS, social networks and POI, transportation, the local search, entertainment and advertising, marketing, business and security, etc. Location information is the basis of all these applications. Therefore, I want to emphasize that the GPS not only chip, it includes chip, software, network and the entire ecosystem.

Besides sensitivity higher, smaller, power consumption and cost more low, we feel GPS outside and more other wireless technology together, such as bluetooth, mobile TV, etc. This year, we will release some of this new product. A - GPS by more and more many operators support, it can significantly shorten GPS positioning of the first time, more convenient operators conducting various business. So is the next development direction, SiRF all products support A - A GPS.

Facing the problem, first we will power from chip design and manufacture process up guarantee, Second, our chips have an energy saving mode, the user can select appropriate province electricity mode; Third, quick first positioning capability is greatly reduced GPS full speed work time, also can reduce power consumption, Fourth, using A - GPS can bring power consumption reduction.

We provide reference for designing, developing and testing tools to help clients products to quickly enter the market. Filtering, components put and shielding will affect the product's performance. We experienced technical support team can guarantee the customer design a success.

SiRF solution is on the market at present the verified the most mature, stable and high performance of GPS solutions. 10 years of GPS experience, make our products under any and all circumstances can provide excellent positioning capability. Products is concerned, we GPS chip can be divided into two major SiRFInstant SiRFstarIII and architecture. SiRFstarIII is our flagship product, has more than 20 million relative device, speed and sensitivity are very good, belong to high performance framework, face very widely. SiRFInstant GSCi - 5000 is our from MOTOROLA acquisitions, volume and power are very small, very suitable for mobile phones.

SiRFstarIII includes three product lines: based on Flash GSC3f/LP series, and can be used to compare general PND, consumer electronics and smart phones, etc; A rom-based GSC3LT and GSD3 series is facing the mobile phone is optimized. GSD3 is facing the latest products, using mobile phones LuoPian single chip solutions of a single, smallest and power consumption minimum and maximum sensitivity. It USES 90 nanometres RF CMOS technology, 4mm x 4mm x 0.68 mm TFBGA encapsulation, area is only about 10mm2, sensitivity da 160dBm. As a result of partial navigation software running in the system of the CPU, GSD3 system cost, lower than existing scheme lowest 10% ~ 20%.

Single chip lower power consumption

We see the market on GPS demand is bigger and bigger, now on mobile phones using GPS also begins to be acceptance. A GPS feature will be integrated to start on high-end phones, with a decline in the cost of integral solution, it will ZhongDiDuan handset market to develop. This year, we saw the phone began to design of integrated GPS. I think size and cost is GPS accepted to consider the two major factors.

Because TI have DRP (digital rf processor) technology, it can be integrated in a single baseband and rf chip, so we currently take the technical route is to provide independent GPS chip solutions. Compared with the market of software on GPS solutions, we think independent single chip scheme mainly is the advantage of low power consumption. Because in a single chip scheme, GPS positioning function of the calculation and the GPS chip completed, will not take phone main chip frequency resource, does not take the chips power consumption. At present, TI GPS chip not integrated into our own mobile phones main chip, nor with bluetooth and mobile TV functions such as integrated together, in this respect, technology go to see how the demand of the market.

Because NaviLink5.0 (NL5350) is a single chip solution, in power than previous generation products improved 75%. And because it does not require the chips is calculated, not spend main chip power consumption, can the whole system of power control have relatively low.

In system design, because use passive antenna effect is not very good, can external an active integrated antenna to improve the sensitivity and so on the system integration an active integrated antenna interface, user-friendly in the on-board such circumstances use. The chip design, we have been in the development of different conditions of calculation formula, ensure improve chip sensitivity.

At present, TI has released a new generation of GPS single chip product -- NaviLink5.0 (NL5350), because it is a section will rf and baseband integrated together of the single chip solutions, it in size, cost and performance than previous generation products are more outstanding performance. At present, we are with our customer common development and application NaviLink5.0 mobile phones expected this year, in the fourth quarter of these products will be mass-production.

Recommend purchasing way

Buy GPS: there are several ways, including stores and boutiques is relatively assured shopping sites, but prices high. New shopping channel has e-commerce website, if taobao, clap, ebay, etc, but this kind of website of the seller of good and evil people mixed up, should choose to have the merchants of choose and buy, just prestige can buy guaranteed quality, price and economical GPS. In addition, in the last two years there appear a large number of professional website, one of the visibility of the website is also a good choice, such as CuanJi machine network may cod, GPS navigation website display all kinds of GPS phone mobile phone is tasted newly, taobao online payment, security, trust, the national LianBao.

WiFi + GPS navigation blackberry 8320 built-in global positioning system (GPS), and also has the WWW browser and WAP browser, another built-in media player and bluetooth V2.0 agreement, email clients to wait, support Wi - Fi wireless network, for business users crucial Office series also has very good support. At the same time this kind of 8320 also has a single 200 million pixels cameras.

Mobile phone GPS map upgrade method

KaiLiDe can say for mobile phone map download and update provided enough convenience, a lot of mobile phones can be passed KaiLiDe related site map services for free upgrades. And according to used personage expresses: use sounds nice.