TWI399520B - A simulation drive device based on global positioning system navigation - Google Patents

Description

Simulated driving equipment based on GPS navigation

The invention relates to a GPS positioning and navigation technology, in particular to a simulated driving device based on a GPS positioning and navigation technology.

In recent years, the Global Positioning System has been widely used in many forms such as control network, deformation monitoring and precision measurement engineering because of its high speed and economical convenience. It is well known that the basic principle of GPS is to measure the distance between a satellite at a known location and a user receiver, and then combine the data information of multiple satellites to determine the specific location of the user receiver. In order to know the location of the satellite, we need to optimize the design of the satellite's orbit, and continuously monitor the satellite's operating status through various means to ensure that the satellite works properly in its orbit.

Therefore, in the GPS positioning process, the following aspects usually occur: one is the error for each user receiver, such as: satellite clock error, ephemeris error, ionospheric error, tropospheric error, etc. The second is from the propagation delay error in the atmosphere in nature; in addition, the inherent error of each user receiver will also affect the measurement accuracy of GPS, such as internal noise, multipath signal transmission error, channel delay Wait.

Especially in the car navigation of GPS applications, these errors may cause the car to travel on a completely different wrong path, the driver can not reach the intended destination, or even completely lose the most original function of GPS positioning navigation. In addition, the GPS navigation device in the prior art can display the map at the location of the location only when the user reaches the designated location, and the degree of freedom of use is not high.

In view of the above-mentioned drawbacks of GPS car navigation in the prior art, the present invention provides a simulated driving device.

According to an aspect of the present invention, a GPS-based navigation driving device is provided, wherein when a user inputs a position to a device, the device uses the position as a starting driving position of the user, for example, the user can select walking, bicycle, Motorcycle and car four modes, and provide users with GPS navigation simulation services.

Wherein, when the user needs to travel or travel, the destination of the business trip or the tour can be used as the starting driving position of the user, and the device is used to simulate driving to familiarize with the destination in advance.

The user can also input another location to the device as the target driving position of the user, and the device provides several sets of driving road plans according to the initial driving position and the target driving position, and the device automatically simulates driving to the target after the user selects a set of solutions. Driving position. Preferably, the device can control the driving speed while simulating driving. Preferably, the road plan provides the user with an electronic map display and all passing road displays.

Among them, the device can include a multi-function steering wheel to enhance the realistic experience of simulated driving.

Wherein, the device further includes any one of a 3D accelerator, a gyroscope and a G-Sensor or a combination thereof. More specifically, the purpose of installing a 3D accelerator is to make the device's picture more realistic and give the user an immersive feel. The purpose of the gyroscope and G-Sensor is to make the device realistically change the picture when the device is oscillating. It should be pointed out that the above devices are not required and can be selected to match the device.

With the simulated driving device of the present invention, if the user is unfamiliar with the road, if he wants to go to a certain place, he can feel the situation and characteristics around the destination and around the destination in advance, and travel around the destination at will, so that The user is familiar with and experiences various situations in the place in advance. When actually arriving at the destination, you can drive freely without using GPS. In addition, the simulated driving equipment can also avoid the consequences of GPS positioning errors in advance, so that users can travel around the world without leaving home.

Specific embodiments of the present invention will be further described in detail below with reference to the drawings. Throughout the description, the same reference numerals denote the same components.

We are no stranger to the term "positioning". For example, a two-dimensional plane coordinate system is mainly divided into two types: a Cartesian coordinate system and a polar coordinate system. In a Cartesian coordinate system, a set of parameters (x, y) can uniquely determine the position of a point. Similarly, in the polar coordinate system, a set of parameters (ρ, α) can also completely determine the position of the point. For GPS positioning navigation, accurately positioning the position of the user's receiver is critical to the accuracy of GPS navigation. One of ordinary skill in the art will appreciate that to describe the position of an object, an associated coordinate system must be present, and the location of the user receiver at the surface of the earth is relative to the Earth. That is to say, the position of the user receiver is locked to select the earth coordinate system as a three-dimensional reference system. In theory, a set of parameters (x, y, z) can uniquely determine any position in space.

Figure 1 briefly illustrates the schematic diagram of the GPS positioning and navigation system. Referring to Figure 1, the Earth's Cartesian coordinate system is shown, where the intersection of the x-axis, the y-axis, and the z-axis coincides with the centroid of the Earth, and the x-axis points to the intersection of the Earth's equatorial plane and the Greenwich meridian (ie, the zero-longitude direction). ), the y-axis points 90 degrees east longitude and the z-axis points to the north pole of the earth. The four satellites operating in different orbits are satellite 1, satellite 2, satellite 3 and satellite 4, respectively, and measure the distance between them and the user receiver, and analyze and calculate the measured data to accurately Determine the location of the user receiver.

Fig. 2 is a block diagram showing the structure of an exemplary embodiment of the simulated driving apparatus of the present invention. It will be understood by those skilled in the art that the simulated driving device in FIG. 2 is only a schematic illustration of the simulated driving device of the present invention, but is not limited to the example in FIG. 2, for example, other types of simulated driving devices. Some of the components or modules of FIG. 2 may not be included, but are also within the scope of the present invention. Referring to FIG. 2, the simulated driving device 200 has at least a selection unit 202, an input unit 204, a simulated driving module 206, and a free driving module 208. One of ordinary skill in the art will appreciate that the simulated driving module 206 operates in a simulated driving mode of the simulated driving device 200, and the free driving module 208 operates in a free driving mode (also referred to as a "ride mode"). It will also be understood by those skilled in the art that both the simulated driving mode and the free driving mode belong to the working state of the simulated driving. From another perspective, the simulated driving device 200 can only operate in a simulated driving mode, or can only work in a free driving mode, or can operate in a simulated driving mode or a free driving mode.

Preferably, the selection unit 202 is configured to select a driving mode for the simulated driving device 200 when the simulated driving device 200 operates in one of a simulated driving mode or a free driving mode. The input unit 204 is used to upload a device picture, which is taken by the satellite from various angles, and based on a map combining computer technology with actual road conditions, and then the image is simulated into a 3D effect. In addition, the user himself can also upload a 3D image, which is manually added to the 3D image database to provide rich information.

Preferably, the simulated driving device 200 may further include an external device. For example, the external device can be, but is not limited to, a multi-function steering wheel, a handle, a control panel, and the like. With these external devices, the user's driving operation can be made simpler and more realistic.

The above-described modes of the simulated driving device 200 will be described in detail below.

Figure 3 is a flow chart showing the operation of the simulated driving device in the simulated driving mode in Fig. 2. Referring to FIG. 3, an exemplary simulated driving method in a simulated driving device may include the following steps: Step 302, inputting a starting position into a simulated driving device; Step 304, inputting a target position into the simulated driving device; Step 306, Simulating The driving device provides the user with several sets of optimal driving road plans based on the starting position and the target position; in step 308, the user selects a driving road plan; and in step 310, the simulated driving device uses the GPS positioning navigation according to the selected driving road. , bringing the user to the desired target location.

Preferably, a sophisticated 3D accelerator, gyroscope and G-Sensor are built into the simulated driving device. The simulated driving device calculates the position of the device by measuring the distance between the satellites at the predetermined position and the receiver of the device, and then integrating the measurement data of the plurality of satellites. Components such as 3D accelerators, gyroscopes, or G-Sensors built into the device are used to correct travel directions, travel speeds, and 3D road maps to accurately position the device. For example, it is presupposed that the device is in the road, it is possible to determine whether it is in the road based on the 3D road picture and based on satellite ranging, and the device corrects the position in combination with the built-in measuring instrument. In this way, the corrected position is more accurate and reasonable than the position without 3D road picture correction. In addition, since the 3D road image is displayed in the device, the user can experience a more realistic road while driving. More specifically, the purpose of installing a 3D accelerator is to make the device's picture more realistic and give the user an immersive feel. The purpose of the gyroscope and G-Sensor is to make the device realistically change the picture when the device is oscillating. Those of ordinary skill in the art will appreciate that the above devices are not required and may be optionally paired with the device.

In the prior art, GPS positioning navigation is often applied to real driving roads. For example, if the user wants to drive from Shanghai to Beijing by himself, he only needs to set the starting position in the car navigation device to Shanghai and the target position to Beijing. However, GPS cannot be used in the simulated position. In contrast, the simulated driving apparatus of the present invention can be adapted to simulate a driving mode. When the user inputs the starting position and the target position, the device can calculate several sets of optimal driving road plans for the user to select according to the traffic condition, and at the same time, display the driving distance and the straight line distance. During the simulated driving process, the simulated driving equipment can control the driving speed.

Fig. 4 is a flow chart showing the operation of the simulated driving apparatus in the free driving mode in Fig. 2. Referring to FIG. 4, the exemplary free driving method in the simulated driving apparatus may include the following steps: Step 402, inputting a user-initiated starting position to the simulated driving device; Step 404, the user is free to drive the device; Step 406, the device simulates GPS Positioning navigation; and in step 408, the device takes the user to any desired location.

In the free-driving mode, the user can freely drive to the various locations from the starting position by simply entering the starting position, as well as information about accommodation, meals and stations near the starting location. As an example of a free-driving mode, it is quite beneficial for a user to travel or travel. Because the user can use the destination of the business trip or travel as the starting position received by the simulated driving equipment, he can freely drive to the local drive to know the humanities of the place in advance. When you are on a business trip or a trip, you can swim freely. In addition, when the user experiences the detailed location information of the destination in advance on the simulated driving device, even if the GPS positioning navigation device is not required, the user can take a free ride at the target position.

In the above description, one embodiment of the simulated driving apparatus according to the present invention can operate normally in a simulated driving mode or a free driving mode. It will be understood by those skilled in the art that the simulated driving device can be switched between the two modes, for example, the user can switch from the free driving mode to the simulated driving mode, or can switch from the simulated driving mode to the free driving mode. . It will be understood by one of ordinary skill in the art that the "starting position" and "target position" above are both a relative definition of the position, and the starting position and the target position are mutually convertible. For example, in the simulated driving mode, the starting position can be used as the target position, and the target position can be used as the starting position. Such variations are not departing from the mode of operation of the simulated driving apparatus of the present invention and are therefore within the scope of the invention as defined by the claims. One of ordinary skill in the art will appreciate that the simulated driving device may also include a switching module for switching between different modes.

The simulation driving device of the present invention has at least the following advantages:

1. Users who are not familiar with the road, if you want to go to a certain place, you can feel the situation and characteristics around the destination and around the destination in advance, and feel free to travel around the destination so that the user can familiarize and experience the situation in advance. In various situations in the local area, when you actually arrive at your destination, you can drive to the car without using GPS.

2. The simulated driving equipment can also avoid the consequences of GPS positioning errors in advance, so that users can travel around the world without leaving home.

Hereinabove, the specific embodiments of the present invention have been described with reference to the drawings. However, it will be apparent to those skilled in the art that various modifications and changes can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Such changes and substitutions are within the scope defined by the scope of the invention.

200. . . Simulated driving equipment

202. . . Selection unit

204. . . Input unit

206. . . Simulated driving module

208. . . Free driving module

Step 302 Enter the starting position

Step 304 Enter the target location

Step 306 provides several sets of optimal driving road plans

Step 308: The user selects a solution

Step 310 simulate driving the device to bring the user to the desired location. Step 402 Enter the starting position

Step 404 User free driving device

Step 406 using GPS navigation

Step 408 The device takes the user to any desired location

Figure 1 briefly illustrates the schematic diagram of the GPS positioning navigation system;

2 is a block diagram showing the structure of an exemplary embodiment of a simulated driving apparatus in accordance with an aspect of the present invention;

Figure 3 is a flow chart showing the operation of the simulated driving device in the simulated driving mode as shown in Figure 2;

Fig. 4 is a flow chart showing the operation of the simulated driving apparatus in the free driving mode as shown in Fig. 2.

200. . . Simulated driving equipment

202. . . Selection unit

204. . . Input unit

206. . . Simulated driving module

208. . . Free driving module

Claims (7)

A simulated driving device based on GPS navigation, wherein when the user inputs a position to the simulated driving device, the simulated driving device uses the position as the initial driving position of the user and provides the user with a GPS navigation simulation service, wherein The user can also input another location to the analog device as the target driving position of the user, and the simulation device provides a plurality of driving road plans according to the initial driving position and the target driving position, and the device is selected by the user after selecting a set of solutions. The driving is automatically simulated to the target driving position, and the user can switch in a simulated driving mode or a free driving mode. The simulated driving device according to claim 1, wherein when the user needs to travel or travel, the destination of the business trip or the tour can be used as the starting driving position of the user, and the device is used to simulate driving to familiarize with the destination in advance. . The simulated driving device according to claim 1, wherein the device can control the driving speed when simulating driving. The simulated driving device according to claim 1, wherein the driving road plan provides an electronic map display for the user. For example, the simulated driving device described in claim 1 of the patent scope, wherein The road plan provides the user with all the road displays that have passed. The simulated driving device according to claim 1, wherein the device may include a steering wheel to enhance the realistic experience of the simulated driving. The simulated driving device of claim 1, wherein the device further includes any one of a 3D accelerator, a gyroscope, and a G-Sensor, or a combination thereof.