Abstract: A gas sensor comprises a basic part and a sensing layer deposited on the basic part. The basic part includes a circuit board and at least one surface acoustic wave element disposed on the circuit board. The sensing layer is a nanocomposite film of reduced graphene oxide/tungsten oxide/polypyrrole deposited on the surface acoustic wave element. The sensing layer combines reduced graphene oxide, metal oxide, and conductive polymer, so that the sensing layer is able to perform sensing at room temperature, and can be more sensitive. The present invention provides a method for manufacturing a gas sensor, and a gas sensing system including the gas sensor.

Abstract: A gas sensor comprises a basic part and a sensing layer deposited on the basic part. The basic part includes a circuit board and at least one surface acoustic wave element disposed on the circuit board. The sensing layer is a nanocomposite film of reduced graphene oxide/tungsten oxide/polypyrrole deposited on the surface acoustic wave element. The sensing layer combines reduced graphene oxide, metal oxide, and conductive polymer, so that the sensing layer is able to perform sensing at room temperature, and can be more sensitive. The present invention provides a method for manufacturing a gas sensor, and a gas sensing system including the gas sensor.

Abstract: An accurate positioning system installed in a vehicle is disclosed to include a GPS, a Gyro sensor, a vehicle speedometer, and a controller. When the GPS outputs a next GPS coordinates, the controller calculates a next reference coordinates subject to the azimuth signal outputted from the Gyro sensor and the vehicle speed signal outputted from the vehicle speedometer and calculates the distance between the next GPS coordinates and the next reference coordinates, and then assigns the GPS coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates surpasses a reference distance, or assigns the next reference coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates is smaller than or equal to the reference distance.

Abstract: An in-vehicle computer system includes a host computer, a mode switch and a backup microprocessor. When the host computer functions ordinarily, the mode switch is in a regular mode as a default, and the host computer uses various graphical interfaces on a display to control the operations of electronic devices implemented in a vehicle. The electronic devices can include a digital versatile disc (DVD) player, an MP3 player and a global positioning system (GPS). When a total failure of the computer occurs, the mode switch is switched to a backup mode, and the host computer is replaced by the backup microprocessor to control a backup graphical processor to extract backup graphical interfaces from a backup storage medium for graphical processing and further presentation on the display. Thus, a driver can continuously control the corresponding electronic devices through the backup graphical interfaces on the display.

Abstract: In a vehicle anti-theft system, a vehicle-mounted mainframe downloads a sole identification code, serving as a control identification code, and transfers the sole identification code into a part as a part identification code. The vehicle-mounted mainframe determines if the control identification code is obtained when the vehicle is activated. If yes, the vehicle-mounted mainframe sends a request command to the part to obtain the part identification code. The vehicle-mounted mainframe determines if the part identification code meets with the control identification code. If yes, the vehicle-mounted mainframe produces a normal operation signal to enter a normal operational mode and feedbacks the identification code to the customer service center. The customer service center checks with a database for stolen events.

Abstract: A vehicle navigation system with a display correction and the display correction method thereof, which first extracts a current display location and corresponding road links, next extracts a next vehicle location and selects all road links ranging within 25 meters from the next vehicle location to generate a first set of road links, next generates a second set of road links from the first set of road links based on an angle of driving direction generated by the gyroscope, next computes vertical distances from the next vehicle location to the second set of road links and selects a road link with a shortest vertical distance, and sets a projection point of the next vehicle location on the road link with the shortest vertical distance to become a next corrected location and displays the vehicle sign on the display screen at a next display location corresponding to the next corrected location.

Abstract: A vehicle navigation control system and method in which the system includes a communication bus, a navigation system, a display device, and a vehicle control computer. The navigation system is connected to the communication bus to provide navigation information. The display device displays a human machine interface and one item of prompt information. The vehicle control computer controls vehicle devices of the vehicle by means of the human machine interface displayed on the display device, fetches the navigation information from the navigation system via the communication bus, converts the fetched navigation information into an item of prompt information, and outputs the converted prompt information to the display device for display during display of the human machine interface.

Abstract: In a vehicle anti-theft system, a vehicle-mounted mainframe downloads a sole identification code, serving as a control identification code, and transfers the sole identification code into a part as a part identification code. The vehicle-mounted mainframe determines if the control identification code is obtained when the vehicle is activated. If yes, the vehicle-mounted mainframe sends a request command to the part to obtain the part identification code. The vehicle-mounted mainframe determines if the part identification code meets with the control identification code. If yes, the vehicle-mounted mainframe produces a normal operation signal to enter a normal operational mode and feedbacks the identification code to the customer service center. The customer service center checks with a database for stolen events.

Abstract: A vehicle navigation control system and method in which the system includes a communication bus, a navigation system, a display device, and a vehicle control computer. The navigation system is connected to the communication bus to provide navigation information. The display device displays a human machine interface and one item of prompt information. The vehicle control computer controls vehicle devices of the vehicle by means of the human machine interface displayed on the display device, fetches the navigation information from the navigation system via the communication bus, converts the fetched navigation information into an item of prompt information, and outputs the converted prompt information to the display device for display during display of the human machine interface.

Abstract: A vehicle dynamic navigation method and system in which an on-vehicle main unit calculates a total navigation path subject to the set start location and destination, and transmits a position information indicative of the vehicle's current position received from a global positioning system through a wireless transceiver to a remote traffic information server so as to obtain a real-time traffic-problem location data of a neighboring area from the remote traffic information server, and then constitutes a district navigation path based on the part of the total navigation path within the neighboring area, and then determines whether the district navigation path and the traffic-problem location data overlap each other, and then re-proposes the district navigation path when the district navigation path and the traffic-problem location data are found to overlap.

Abstract: An accurate positioning system installed in a vehicle is disclosed to include a GPS, a Gyro sensor, a vehicle speedometer, and a controller. When the GPS outputs a next GPS coordinates, the controller calculates a next reference coordinates subject to the azimuth signal outputted from the Gyro sensor and the vehicle speed signal outputted from the vehicle speedometer and calculates the distance between the next GPS coordinates and the next reference coordinates, and then assigns the GPS coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates surpasses a reference distance, or assigns the next reference coordinates to be the next accurate coordinates for output when the distance between the next GPS coordinates and the next reference coordinates is smaller than or equal to the reference distance.

Abstract: An in-vehicle computer system includes a host computer, a mode switch and a backup microprocessor. When the host computer functions ordinarily, the mode switch is in a regular mode as a default, and the host computer uses various graphical interfaces on a display to control the operations of electronic devices implemented in a vehicle. The electronic devices can include a digital versatile disc (DVD) player, an MP3 player and a global positioning system (GPS). When a total failure of the computer occurs, the mode switch is switched to a backup mode, and the host computer is replaced by the backup microprocessor to control a backup graphical processor to extract backup graphical interfaces from a backup storage medium for graphical processing and further presentation on the display. Thus, a driver can continuously control the corresponding electronic devices through the backup graphical interfaces on the display.

Abstract: A vehicle navigation system with a display correction and the display correction method thereof, which first extracts a current display location and corresponding road links, next extracts a next vehicle location and selects all road links ranging within 25 meters from the next vehicle location to generate a first set of road links, next generates a second set of road links from the first set of road links based on an angle of driving direction generated by the gyroscope, next computes vertical distances from the next vehicle location to the second set of road links and selects a road link with a shortest vertical distance, and sets a projection point of the next vehicle location on the road link with the shortest vertical distance to become a next corrected location and displays the vehicle sign on the display screen at a next display location corresponding to the next corrected location.

Abstract: A mobile video system for vehicles, which includes a wireless receiver, a decoder, a sound device, a display and a controller. The wireless receiver receives a wireless video signal and demodulates the video signal to thereby produce a digital transport stream. The decoder receives and decodes the digital transport stream to thereby produce a video data stream. The controller performs initialization and operating mode settings on the wireless receiver, the decoder, the sound device and the display, and drives the decoder to decode the digital transport stream to thereby produce the video data stream. When the wireless receiver is a detachable wireless receiver, the decoder, the sound device, the display and the controller are integrated into an embedded system.