Why is the navigation software very accurate when prompting traffic jams?

I believe that for drivers, they will often use the real-time traffic feature in the map software, because this feature can see the traffic information around them, which roads are blocked, and which roads are clear. So how does this work? Will satellites work?

In fact, there are three main aspects in which satellites are indeed involved.

At present, big data technology is widely used in China's mobile phones, and mobile phone navigation software is one of them. When we open the mobile navigation software, it often reminds you to turn on GPS and mobile communications. Not only do these features help you plan your route more accurately, but they also play an important role in determining the condition of the road.

Many people are accustomed to turning on their mobile phone navigation while driving. If there is a traffic jam on a certain section of the road, it also plays an important role in judging the condition of the road. Many people are accustomed to turning on their mobile phone navigation while driving.

If a certain road section occurs traffic jam, big data algorithm judges whether this road section occurs traffic jam by refreshing the GPS positioning information that each vehicle provides. Because if a large number of GPS vehicles are refreshed on the same road section for a long time, then this place will definitely be congested. Then the mobile navigation software will automatically send traffic jam alerts.

Finally, there is the public transport location information supplement. Now, for safety reasons, most buses and taxis are also equipped with GP S positioning devices. Even if these vehicles do not upload location information through the map softwareIt is also fed back to the traffic management department through the GPS device, which is then connected to the map software as a supplement to the data.

Combine the above three pointsThe real-time traffic display of the map software is very accurate.

Because they are through some satellite systems, it is generally very accurate to judge traffic jams.

Because he can navigate to a lot of cars, he can feel that there are many cars in front of him and there will be traffic jams.

Because of the navigation software, he generally uses satellite navigation, and the road section is updated in real time.

Because he has his own in-house technology for navigation software, he can't make mistakes.

Driving every day with navigation, do you know how navigation judges the traffic jam ahead?

In order to facilitate users to view the current congestion, AutoNavi Navigation has made a color to distinguish it.

Green: It means that the road surface is smooth, there is no congestion, and you can drive with confidence;

Yellow: Represents slow driving, but still able to move slowly;

Red: Represents congestion and requires more attention;

Dark red: It represents serious congestion, and there is a possibility of congestion, so it is recommended that car owners try to choose a detour.

Similarly, the length of the congestion will be told to you in the navigation prompts, and the navigation will also help you budget the transit time based on the length and severity of the congestion.

Now the navigation system basically cooperates with the traffic management department, and then the traffic management department will share the implementation data transmitted back by the camera of each section to the navigation system, and then the guide system will share the real-time traffic conditions with the car owners through the data processing mechanism according to the information of the traffic management department.

In addition to the cooperation of big data and traffic management departments, there will inevitably be some vulnerabilities in the navigation system, so at this time, the navigation system encourages users to send real-time traffic information, and then share the data provided by these users with other users.

Generally speaking, navigation software is based on cooperating with the traffic department, using its own client software location services, and using the vehicle information of the navigation software at the same time to decide whether to give feedback on the congestion information ahead.

First: most of the early real-time navigation information comes from the camera monitoring road information provided by the traffic management department, but because of the limited access and open mode, the third-party navigation software company can not fully realize real-time, so it is extended to the second mode.

The third type: with the development of Internet technology, most of the current navigation software is the method of client positioning analysis, and the big data analysis is carried out to determine whether the front is congested. Of course, these navigation operators will also work with the traffic police to access the latest information to provide guidance on some road construction routes and detours.

1. The map that provides congestion information is completed in the state of networking. Cities and roads that provide related services, map manufacturers and local traffic authorities are connected, and road condition maps obtained from them will show and explain congested road sections.

2. The vehicles on the map are in the form of a relatively fast and stable speed, then it means that this section of the journey is smooth, in fact, in this process, we hold the terminal of the driver friends are acting as the information collector and beneficiary, from this point of view, the mobile phone navigation system is a real sense of the sharing mechanism.

3. Through satellite signals, monitor the working conditions of road vehicles, mainly monitor the traffic flow, occupancy, and vehicle existence, and usually lay on the highway and main road so that the intersection can be fed back in real time.

Knowing if the road ahead is congested is a form of live navigation. The navigation software obtains the actual situation of the road through the local transportation service, which is then displayed and reported to the user through the navigation interface.

This shows why live navigation has to be implemented in networked conditions, and why offline navigation is not possible.

2. Embedded induction coil. At the intersection of many roads, a ground pressure magnetic induction circle is pre-embedded, and an induction signal can be generated when a vehicle passes. By calculating the number of passing traffic and the speed of the vehicle, the congestion of the road can be accurately obtained.

This part of the data is very small.

3. Taxi companies. Taxis generally have GPS equipment, which was originally used to monitor and manage taxis. By monitoring the location and speed of the taxi, it is possible to estimate the congestion on the road.

4. Data of user positioning and navigation. As a user of the map, they are actually contributors to the map data. In the process of planning and navigating, the current road congestion state can be estimated by observing the location and speed of the vehicle.

How does the navigation map know that there is a traffic jam on the road ahead?

Because each car is equipped with a navigation function, it will transmit information to each other.

There should be GPS, and many mobile phones across the country share mobile phone positioning. So you can judge whether there is a traffic jam or not.

Because map navigation is judged by satellites, the current satellites can feel how many traffic jams are ahead.

It's through the satellites in the sky, give him enough judgment, and then he let him know.

It's through some hearts, and then to see if these cars are more.

Because when you are stuck in traffic, you will drive very slowly, and you will move for a while.

Map navigation, which can not only navigate the route, but also observe the road surface.

I think it's because it's all used, and there are satellites.

Cooperate with taxi companies to install GPS and data backhaul systems in taxis to return data on the driving status of vehicles, but this is too costly, and there are only a limited number of taxi vehicles, and most of them are concentrated in the center of the city, or in areas with high demand for cars.

The traffic detection system of the traffic department, the traffic department will generally implement traffic monitoring for key road sections, and the help given in this regard is actually limited, after all, for the road monitoring capacity of the entire city, even the ability of the functional departments is limited, so there is a third kind.

How does the navigation map know that there is a traffic jam on the road ahead?

How does map navigation know if there is a traffic jam on the road? After reading it, it solves many years of doubts, it's amazing.

When we open the navigation map, our GPS system is uploaded to the internet. At this point, they will know where each car is in the official big data. The GPS positioning will be updated regularly, and if the vehicle barely moves after two refreshes, it means that the road ahead is blocked.

Based on all the GPS data points that can be collected, the navigation map can determine which section of the road is congested and which section of the road is slow or smooth according to the speed of these points (speed calculation does not need to be explained).

This is because the navigation is a system that can update the situation of the road section according to different times.

Map navigation is based on real-time traffic information transmitted by satellites.

Then you turn on GPS, and it can spread to the satellite.

According to the speed of the vehicle in the road section, it is fed back to judge.

Because there is GPS tracking in the navigation, it can know the traffic jams on the road.

Information collected based on GPS.

I guess it's based on GPS.

Mainly for the new propagation to the GPS inside the navigation.

Driving every day with navigation, do you know how navigation judges the traffic jam ahead?

The horizontal bar is the instant information transmitted by the satellite, and it can definitely be seen in bad road conditions.

Navigation, he will only choose a nearer, or farther line, but he will not know the **traffic jam at all?

Why does the navigation show traffic jams? Because it may be analyzed automatically, as long as it is in the state of networking, it is analyzed.

This is a reminder that the section will be very congested at a certain point in time, and it is recommended that you take a detour.

Navigation is a good way for people to come out.

Because the road section that shows traffic jam is getting stuck in traffic.

Because he has satellite detection! You can see the car.

Because there are GPS satellites, you can definitely see it.

Wow, your son just started first grade this year.

Here's why:

1.There are two wireless connection terminals in the operation of mobile phone navigation, one is connected to the mobile base station and the other is connected to the navigation satellite, the former is responsible for generating data, and the latter is used to determine the location information. Then the formation of congestion information is actually the data formed by many networked Lianxing mobile phones, which is reflected on our mobile phone terminals.

3.And if the information uploaded by many terminals in front of them shows that these vehicles are in the form of a relatively fast and stable speed, then it means that this section of the journey is smooth, in fact, in this process, we hold the terminal drivers and friends are acting as information collectors and beneficiaries, from this point of view, the mobile phone navigation system is a real sense of the sharing mechanism.

There are several scenarios for obtaining data on real-time traffic conditions:

1. The most important thing is GPS floating car technology, also known as "Probe Car".

The floating vehicle equipped with the vehicle-mounted global positioning system, the vehicle position, direction and speed information that is regularly recorded during its driving process are processed by applying the calculation models and algorithms related to map matching and path estimation, so that the floating vehicle position data and the urban road are associated in time and space, and finally obtain the traffic congestion information such as the vehicle driving speed of the road through which the floating vehicle passes, and the driving travel time of the road.

2. Traffic detection system for transportation department.

The intersection camera monitor is also an important means to judge the road conditions, shooting real-time ** for intelligent extraction and comparative analysis, it can be switched to the accident or accident point in real time. In this way, data such as traffic flow, vehicle speed, vehicle classification, etc. can be recorded. This kind of main roads and main roads that generally exist in the city are now gradually paved to large and small roads.

It is mainly used as an aid to measure traffic flow.

3. Ultrasonic (radar) monitor.

Through the fixed-point transmission of wave frequency signals, the working conditions of road vehicles are monitored, and the traffic flow, occupancy, and vehicle presence can be monitored, and they are usually laid on highways and main roads.

How does mobile phone navigation know that there is congestion ahead, it is really satellite observation, we are all wrong.

Maps that provide congestion information are done in a networked state. Cities and roads that provide related services, map manufacturers and local traffic authorities are in contact with each other, and road conditions are obtained from them.

There is also big data, the same road section, there will be a lot of people driving navigation, when most of them are slow down in this section of the road, they have the corresponding calculation method.