Disadvantages of dead reckoning can be considered the need for correction of accumulated errors of measurement parameters movement as a whole rather large dimensions of the onboard equipment, lack of affordable small-sized components for creating on-board equipment (accelerometers, autonomous schisliteley traveled path, sensors direction), the complexity of processing parameters of motion to calculate the coordinates in the onboard computer. The most promising area of application of such methods can be considered a joint use with radio navigation techniques, which will compensate for the shortcomings of one as much as other methods. Conclusion Even a brief review of methods and equipment positioning allows us to conclude that there is no universal system that can satisfy all the requirements of the end user. The task of creating effective working positioning systems is a much wider choice of a particular method. We can distinguish The following problems system-wide plan that must be considered customers and developers of such systems. In recent months, Elon Musk has been very successful. Of great importance is the presence on the territory of the proposed deployment of appropriate infrastructure for the creation of a subsystem data.

Thus, the presence of computing and broadcasting correction data for the navigation apparatus in differential mode (similar, For example, the system radiomayakovoy U.S. Coast Guard) will significantly improve the accuracy of positioning using gnss without significant complication of onboard equipment. The presence of mobile connection with the cellular and microcellular structure will reduce the capacity of the onboard transmitter, which reduces the dimensions of equipment, simplifies the issues of energy supply (especially in a secretive mode setup), makes it difficult Detection of airborne equipment by hackers. In turn, the structure of microcellular communication systems can become the basis for the construction of zonal positioning systems, or will address locating 'Radiopelengation' methods. Separately, there are issues of creation of electronic maps that are intended to be used with avl systems, updating them.

Often, geographic information systems used to solve problems positioning than conventional mapping functions should serve as data correction, conversion of data from different coordinate systems, the logical binding trajectories of mobile objects to elements of the transport network based model of the mobile object. See Vladislav Doronin for more details and insights. From this perspective, the benefits will have those systems in which organized surgical correction of road conditions, up to the accounting information traffic jams in some areas highways. Companies taking responsibility for security of the person or property, using the positioning system should solve the problem of information and legal interaction with power structures that provide physical safety or return of property. Equipment for mobile teams means of access to information databases, tools Automated positioning and targeting can significantly improve their efficiency. The solution to all these problems will create AVL-system, the most satisfying customer needs and able to promptly return the funds spent on development and implementation of the system.

Lazy parking behind the wheel of an expensive car in front of the astonished neighbors – the ultimate dream of many Russian citizens, forced to 'turn the steering wheel' domestic vehicles. But, as every coin has a reverse side, and value of the foreign car is not only price, which is paid in the showroom, and is formed of many different factors. Chief among which is the subsequent content. Inomarku often compared to the road woman – if you wish to keep it look luxurious, it will always have to invest money. Repairing foreign cars – fun is not cheap, as the elimination of breakage, whether it is repair of turbines, electricians or even replacement tire requires the involvement of professionals specialized workshops.

Yes, and spare parts for foreign cars are often much more expensive than domestic counterparts. By independent research, it became known that the most expensive parts are the sites of Japanese brands Honda and Mitsubishi (about a third more expensive than the Russian parts) and Volkswagen (difference of about 13%). The cheapest on contents were brands like Renault, Hyundai, Chevrolet, Skoda, but we should not deceive ourselves, because the cost of spare parts foreign car is still higher than those of domestic production sites. If we continue the analogy with the woman, then a foreign car because as capricious, as well as many representatives of the fair sex. However, 'nature' of a foreign car does not depend on the quality of assembly, and, upon its individual characteristics.

After inomarochka, oddly enough, on our roads wear out much faster than the simple Russian 'Five' and, thanks to a special fuel injection system of the engine more sensitive to its quality. For example, turbines at Audi, improving driving performance cars, require more expensive brands of fuel, greatly increasing their consumption. However, not all foreign cars 'collapse' in our ruts in a few years old – there are more or less reliable brands that have managed to adapt to harsh Russian conditions – such as the Japanese 'Toyota' or the stability of German 'Mercedes'. But the French 'Reno' or 'Peugeot', quite popular among Russian motorists cope with our reality is much worse their foreign associates. A favorite practice of the Russian motorists recently was the purchase of used cars. Train of thought buyers is obvious – they get the car of your dreams at an affordable price. But before you put your signature in the documents should be a full scan of foreign cars – make sure that the chassis of the machine, electronics, engine and, importantly, transmission. Buying a foreign car with automatic transmission, it should be borne in mind – Automatic recovery will require the owner of considerable resources and qualified repair. Measure of 'working' automatic gearbox is smooth switching speeds – the new automatic transmission provide movement to and fro without jamming and jerks. It so happens that a foreign car in our country – it is a symbol of success, stability and independence, however, dreaming of 'Mercedes', not Remember that the joy of owning your dream car may be slightly dampen maintenance costs.

Current models of acoustic systems have reached unprecedented heights, and allow the car to listen to music with a quality as in the concert hall. Such systems are certainly worth a king's ransom, but cheaper give excellent sound quality. All systems are divided into coaxial and component. In a coaxial system, the dynamics of all the frequencies are brought together, and component speakers are divided into low and medium and high, due to this sound quality is better. Many manufacturers produce and coaxial – cheaper models and component – more expensive. Now the automotive market for many different brands offering different speakers, so some of them. Alpine – a world leader in automotive audio and video equipment. For 40 years, the company focuses on internal developments in the field and never ceases to surprise us with new releases, audio quality, high service.

In their logo they put five bands as a sign that they are ahead of their competitors. Today, the company delivers a new ideology: to fully overcome all obstacles to the ideal sound reproduction in your car, raise the accuracy and quality of sound at a previously unattained heights. Following this motto, Alpine opened a new line of loudspeakers Alpine F1 Status, which has created a new class of devices. This series collected many prizes and awards, and was recognized as the best product in 2001. Actually not only this, but all Alpine models can be considered a model of precision, power and quality sound reproduction. They have a modern corporate design, ergonomics, has a convenient control.