Analysis of the application of vehicle-mounted GPS in car navigation
With the rapid development of the national economy and the acceleration of urbanization, the number of motor vehicles and road traffic in my country has increased dramatically, especially in large cities. Traffic congestion, blockage, and the resulting increase in traffic accidents and aggravated environmental pollution are one of the "urban diseases" faced by cities in my country. In view of this, the idea of applying various advanced technologies to cars to reduce traffic accidents, improve transportation efficiency, and reduce the workload of drivers has emerged, thus allowing the GPS positioning system to have important developments in the field of transportation and automobiles.
1. The composition and understanding of GPS navigators
The car navigation system is a new technology developed on the basis of the global positioning system GPS. The car navigation system consists of GPS navigation, autonomous navigation, microprocessor, vehicle speed sensor, gyro sensor, CD-ROM drive, and LCD display.
GPS navigator is a car driving assistance device that can help users accurately locate their current location, calculate the itinerary according to the established destination, and guide users to the destination through map display and voice prompts.
GPS navigator includes two important components: one is the global positioning system referred to as GPS. The other is the car navigation system. It is not enough to have a GPS system alone. It can only receive data sent by GPS satellites and calculate the user's three-dimensional position, direction, speed and time of movement, but it does not have the ability to calculate the path. If the GPS receiving device in the user's hand wants to realize the route navigation function, it also needs a complete car navigation system including hardware equipment, electronic maps, and navigation software.
To judge the quality of a GPS navigator, the number of GPS satellites that the navigator can receive and the path planning ability are the key. The more effective satellites the navigator can receive, the stronger its current signal is, and the more stable the navigation work is. If a navigator often fails to search for satellites or frequently interrupts the signal during navigation, affecting the normal navigation work, then its quality is not up to standard, let alone the quality.
Secondly, the path planning ability is also very important. An excellent navigator should be able to quickly and accurately indicate a path with the shortest time or distance (based on personal preference) according to the current parking space and the destination specified by the user. The path arrangement is humanized, without taking a detour, and driving is safe and comfortable. In addition to the processor and software, the path planning ability is also very important for maps. As mentioned earlier, a map is equivalent to a database. The more comprehensive and up-to-date the data is, the more reasonable the route designed by the navigator will be. Therefore, the map's level of detail and ability to update in a timely manner also play a crucial role in the quality of the navigator.
Thirdly, the car GPS must be placed in the car, so it needs a bracket that can rotate freely and has a strong chassis adsorption capacity; a screen with excellent display effect and can clearly see the map instructions; for driving safety, we can't always stare at the screen, so the voice prompt function with loud voice and timely broadcast is very important; and the navigator generally has limited battery life. At long distances, we urgently need a car charger with a cigarette lighter interface that can charge the device. These are all necessary conditions for a qualified car GPS related to the characteristics of the car. In addition, the satellite reception capability, software road calculation capability, map accuracy, detail and update capability mentioned earlier are the working basis of the navigator and cannot be ignored.
2. Functions of the vehicle-mounted GPS navigator
The GPS navigation system is combined with electronic maps, radio communication networks and computer vehicle management information systems to achieve many functions such as vehicle tracking and traffic management. These functions include:
1. Map query
You can search for the location of your destination on the operating terminal.
You can record the location information of places you often go to, keep it, and share this location information with others.
Fuzzy query information such as gas stations, hotels, and cash machines near your location or a certain location
2. Route planning
The GPS navigation system will automatically plan a route based on the starting point and destination you set.
The planned route can be set to whether to pass through certain waypoints.
The planned route can be set to avoid functions such as highways.
3. Automatic navigation
Voice navigation:
Use voice to provide the driver with driving information such as intersection turns and navigation system status in advance, just like a guide who knows the road tells you how to drive to your destination. One of the most important functions in navigation is that you can reach your destination safely through voice prompts without watching the operating terminal.
Screen navigation:
On the operating terminal, the map, the current location of the car, driving speed, distance to the destination, planned route prompts, and driving information such as turn prompts at intersections will be displayed.
Re-planning the route:
When you do not drive according to the planned route or take the wrong intersection, the GPS navigation system will re-plan a new route to your destination based on your current location.
3. Current status and reasons of the development of the vehicle-mounted GPS market
my country's vehicle-mounted GPS market is still in its early stages. The installation of GPS vehicle-mounted systems on the market can be divided into two types: pre-installed and post-installed. The pre-installed system is a supporting product assembled on the vehicle before the vehicle leaves the factory. The post-installed system is installed on the vehicle during the use of the vehicle. At present, my country's vehicle-mounted system market is still in the development and start-up stage. If the navigation terminal is used as a standard, the cost of the car will increase, and the user's demand for GPS equipment is uncertain, and the car manufacturers will take a relatively large risk. Therefore, it is undoubtedly a wiser strategy to provide car users with a flexible choice in the form of post-installation.
So far, the vehicle-mounted GPS system market has not developed as rapidly as people expected, and the entire market is still in its early stages. The reasons are that there are four main factors that restrict its development.
1. Weak consumer demand
In terms of travel habits, Chinese car users are significantly different from those in developed countries. In the United States and Japan, people drive hundreds of kilometers every day, while most Chinese car owners travel only 1/10 of that, and most of them travel on fixed roads to their residences. Since Chinese car users are more familiar with road conditions, this determines that in terms of product use, my country does not have as strong market demand as countries with developed GPS navigation product markets.
2. Lack of industry standards
Standardization is the core issue of the industrialization of GPS vehicle tracking systems. At present, GPS products and operating systems of different companies cannot be universal, compatible, networked, and the technology cannot be updated. In addition, the strength and reputation of enterprises involved in this field are uneven, and the service quality needs to be improved. These problems hinder the promotion and application of this product.
3. Excessive product prices
The high price is one of the reasons why GPS global positioning products cannot be rapidly popularized in the Chinese market. Developing navigation products with prices that most Chinese consumers can accept is the main task of major GPS manufacturers. At present, the price of a single receiver in the high-end market of the mainstream GPS system in the market is over a thousand or even tens of thousands of yuan. Even the average price of a simple car-mounted system of medium quality is 1,500 to 2,500 yuan. Such a price makes a large number of potential consumers discouraged.
HCR believes that China's GPS industry has begun to show a polarized development trend. Entering a new era, consumers' demand for products has begun to shift to value. Pure price consumption is indeed the mainstream model, but it has gradually become polarized. From the perspective of brands, there are also polarized development tendencies. One category still takes advantage of price advantages to take the low-price route. Its products still lack innovation, quality is still unstable, and resources are still not abundant. As consumption begins to become rational, the model of winning by price alone will gradually withdraw from the stage of history. The other category focuses on product research and development and program optimization to bring users a more humane and convenient use experience. These brands focus on winning by quality, and reduce product sales prices by strengthening corporate management, controlling production costs, and other aspects that do not affect product quality, thereby truly benefiting consumers. It has become a new direction for the development of car-mounted GPS. New products and new marketing ideas will drive the entire industry onto a rational development path.