METHOD FOR SMART ANNOUNCING OF BUS STOP

• US 20090207049A1
• Filed: 02/15/2008
• Published: 08/20/2009
• Est. Priority Date: 02/15/2008
• Status: Abandoned Application

• Current Assignee: United International Commerce Company Limited
• Original Assignee: Chunghwa United Television Co., Ltd.
• Inventors: Liao, Shiun-Chih
• Application Number:
  US12/031,988
• Publication Number:
  US 20090207049A1
• Time in Patent Office: Days
• US Class Current: 340/988
• CPC Class Codes: G08G 1/123 indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, tramstransmission of navigation instructions to vehicles G08G1/0968

Abstract

A method for announcing bus stop includes using a navigation positioning device to receive a satellite signal, retrieve current vehicle geographic longitude and latitude coordinates from the received signal, compare a databank thereof with the current geographic longitude and latitude coordinates, and, if any special position value is found, compute a distance from the current position to a next target position based on the special position value and the current geographic longitude and latitude coordinates; and using a microprocessor to compute parameters for adjusting a remaining distance and the remaining distance based on data from the navigation positioning device, or, in the event of a traffic jam in a tunnel, adjust the remaining distance according to detected vehicle speed data from a sensor, and determine whether to drive an AV device according to the remaining distance and the distance to the next target position to timely announce next bus stop.

Claims

1. A method for smart announcing of bus stop applicable to a transportation vehicle, the method being implemented through a smart bus stop announcing system having a navigation positioning device, a sensor, a microprocessor, and an audio-visual (AV) device, and comprising the following steps:

the navigation positioning device receiving a satellite signal transmitted by a satellite;

the navigation positioning device retrieving current vehicle geographic longitude and latitude coordinates from the received satellite signal, and computing to obtain data of current vehicle speed;

the navigation positioning device comparing a databank built therein with the current vehicle geographic longitude and latitude coordinates, and determining whether there is a special position value as set in a scheduled route data in the databank;

the navigation positioning device starting computing a distance from the current position to a next target position in the scheduled route data, based on coordinates of the special position value and the current vehicle geographic longitude and latitude coordinates;

the microprocessor computing parameters for adjusting a remaining distance and a remaining distance, based on basic vehicle speed data set in the navigation positioning device and the data of current vehicle speed;

the sensor detecting a speed of the transportation vehicle and sending the detected speed data to the microprocessor, so that the microprocessor adjusts the remaining distance and the parameters for the remaining distance based on the, detected speed data; and

the microprocessor determining whether to drive the AV device based on the remaining distance and the distance to the next target position to timely inform passengers of the arrival at the next stop.

2. The method for smart announcing of bus stop as claimed in claim 1, wherein the sensor is an accelerometer.

3. The method for smart announcing of bus stop as claimed in claim 2, wherein the accelerometer may utilize an inertial navigation system as a measuring way to detect the speed of the transportation vehicle.

4. The method for smart announcing of bus stop as claimed in claim 1, wherein, in computing the parameters for adjusting the remaining distance and the remaining distance, the microprocessing may utilize an artificial neural system or a fuzzy system to control the computing, so that the computing of most appropriate bus stop announcing time can be achieved.

5. The method for smart announcing of bus stop as claimed in claim 1, wherein the AV device includes a display unit.

6. The method for smart announcing of bus stop as claimed in claim 1, wherein the AV device includes an audio unit.

7. The method for smart announcing of bus stop as claimed in claim 5, wherein the display unit is an LCD.

8. The method for smart announcing of bus stop as claimed in claim 6, wherein the audio unit is a loudspeaker.