TW201639386A - Communication apparatus and methods - Google Patents

Abstract

A communication apparatus, adapted to a vehicle, includes a locating module, a communication unit, and a processing unit. The locating module receives location data of the vehicle. The communication unit connects to one of a plurality of approaching objects according to a wireless communication protocol, and receives location data of one of the plurality of approaching objects. The processing unit obtains a positional relationship between the vehicle and the one of the plurality of approaching objects according to the location data of the vehicle and the location data of the one of the plurality of approaching objects. The processing unit further generates an alert according to the positional relationship. The one of the plurality of approaching objects has a specific identification code, the specific identification code includes a specific code and Service set.

Description

Communication device and communication method

The present invention relates to a communication device and a communication method, and more particularly to a communication device and a communication method for establishing a connection with one of a neighboring object according to a Wi-Fi wireless area network communication protocol and a specific identification code.

In order to reduce the incidence of traffic accidents, many advanced countries are committed to the development of wireless communication technology between vehicles and vehicles (Vehicle-to-vehicle). However, today's V2V technologies typically use dedicated short-range wireless communication technologies such as DSRC. The DSRC uses an operating frequency of 5.9 GHz, a communication range of approximately 1000 meters, and a communication speed of approximately 6-27 Mbit/s. The advantage is that it can provide high-speed data transmission, and can guarantee the low latency of the communication link and the reliability of the system. However, DSRC is difficult to popularize because no standardized method has been defined among various vendors. Therefore, how to establish a vehicle network that can provide communication between all vehicles is currently a problem to be solved.

To solve the above problem, an embodiment of the present invention provides a communication device, including a positioning module, a communication unit, and a processing unit. The positioning module is configured to continuously receive positioning data of the vehicle. Communication unit for using a wireless device The local area network protocol is associated with one of a plurality of neighboring objects and receives location information corresponding to one of the neighboring objects. The processing unit is configured to obtain a positional relationship between the vehicle and one of the neighboring objects according to the positioning data of the vehicle and the positioning data of one of the neighboring objects, and generate a reminding message according to the positional relationship. Wherein, one of the neighboring objects has a specific identification code, and the specific identification code is composed of a specific encoding and a service setting identification code.

Another embodiment of the present invention provides a communication method, the method comprising: continuously receiving positioning data of a vehicle; connecting to one of a plurality of neighboring objects according to a wireless local area network communication protocol; and receiving positioning data corresponding to one of the neighboring objects; Obtaining a positional relationship between the vehicle and one of the neighboring objects according to the positioning data of the vehicle and the positioning data of one of the neighboring objects; and generating a reminder message according to the positional relationship; wherein one of the neighboring objects has a specific identification code, and the specific identification The code system consists of a specific code and a service set identification code.

100‧‧‧Communication device

110‧‧‧ Positioning Module

120‧‧‧Communication unit

130‧‧‧Processing unit

250‧‧‧Travel directions

201-207‧‧ Vehicles

S301-S305‧‧‧Step procedure

1 is a schematic diagram showing a communication device according to an embodiment of the present invention; FIG. 2 is a schematic diagram showing a vehicle network according to an embodiment of the present invention; and FIG. 3 is a view showing an embodiment of the present invention. A flow chart of the communication method.

Other ranges for the systems and methods of the present invention will be apparent from the detailed description provided hereinafter. It is to be understood that the following detailed description, as well as specific embodiments, are intended to be illustrative of the embodiments of the present invention, and are not intended to limit the scope of the invention.

1 is a schematic diagram showing a communication device according to an embodiment of the present invention. The communication device 100 includes a positioning module 110, a communication unit 120, and a processing unit 130. The communication device 100 can be a smart phone, a tablet computer, or a personal digital assistant installed inside the vehicle. The positioning module 110 is configured to continuously receive positioning data of the vehicle. The positioning module 110 can be a global satellite positioning system, a base station positioning system, or a combination of the two. The positioning method of the Global Positioning System (GPS) is based on at least three satellites confirming the position and altitude of the user on the earth, and the more satellites that can be connected to the satellite, the more decoded. The location is more precise. The base station positioning system uses the base unit of the base station currently served by the device to locate, and further calculates the distance between the device and the base station by the radio wave reflection time difference, but if the user is located in a remote or suburban area where the base station is less When it is located, the error value generated by its positioning is large. The positioning data obtained by the positioning module 110 is represented by longitude and latitude. The communication unit 120 is configured to connect with one of the plurality of neighboring objects according to the wireless local area network communication protocol, and receive the positioning data corresponding to one of the neighboring objects after the connection is established. Wherein, one of the neighboring objects has a specific identification code, and the communication unit 120 establishes a connection with the adjacent object by determining whether the adjacent object has a specific identification code and a signal strength of the wireless area network protocol. Obtain the positioning data of the vehicle and the adjacent objects After the data is located, the processing unit 130 calculates the distance and the relative relationship between the vehicle and the adjacent objects according to the positioning data, and generates an alert message according to the distance and the relative relationship.

Figure 2 is a schematic diagram showing a vehicle network in accordance with an embodiment of the present invention. As shown in Fig. 2, the vehicles 201 to 207 travel in the direction of the arrow 250, and each of them is equipped with a corresponding communication device. According to an embodiment of the invention, when the user is located in the vehicle 204 and the corresponding communication device 100 is enabled, the positioning module 110 continuously receives the positioning data corresponding to the vehicle 204 through the global satellite positioning system or the base station positioning system. After the positioning module 110 is enabled, the communication unit 120 searches for the existence of a wireless network access point (AP) within a predetermined range through Wi-Fi. Since the communication range of Wi-Fi is about 100 meters, when a wireless network base station enters the above range, the communication unit 120 can obtain a service set identifier (Service Set Identifier) corresponding to the wireless network base station. , SSID). After obtaining the corresponding service setting identification code, the communication unit 120 further determines whether the composition of the service setting identification code is a specific format. For example, in order to distinguish the general wireless base station from the wireless base station corresponding to the vehicle, the service setting identification code corresponding to the wireless base station of the vehicle has its specific format, for example, before the original service setting identification code. The "V2V" or a specific code enables the communication unit 120 to determine whether the corresponding wireless network base station is a vehicle by determining whether the beginning of the service setting identification code is "V2V" or a specific code.

When the communication unit 120 determines that there is a wireless network base station corresponding to the specific identification code in the search range, it is further determined whether the location of the vehicle corresponding to the wireless network base station is located in front of the vehicle on which the user is riding. For example As shown in FIG. 2, the vehicles 201-203, 205-207 are all located within the Wi-Fi search range of the vehicle 204, but only the vehicles 201-203 are located before the vehicle 204 corresponds to the direction of travel 250, and the vehicle 205 The -207 is located behind the vehicle 204, so the communication unit 120 will selectively connect to one of the wireless network base stations corresponding to the vehicles 201-203. In general, since the main function of the V2V communication is to assist the user in judging the driving condition of the vehicle in the vicinity of the vehicle, the communication unit 120 determines the wireless connection to be connected according to the signal strength of the wireless network base station corresponding to the vehicle in front. Network base station. As shown, since the vehicle 203 is closest to the vehicle 204 and is located in front of the vehicle 204 such that the signal strength of the wireless network base station of the vehicle is the strongest, the communication unit 120 of the vehicle 204 is connected to correspond to the vehicle 203. Wireless network base station.

After connecting to the wireless network base station of the vehicle 203, the vehicle 204 downloads the speed, position, direction of travel, and status (eg, braking, speeding, etc.) of the vehicle from the vehicle 203 to a storage unit (not shown), At the same time, the speed, position, direction of travel and status of the vehicle are uploaded to the vehicle. Next, the processing unit 130 calculates a positional relationship between the two vehicles according to the speed, position, traveling direction, and state of the download, and issues an alert warning according to the positional relationship. For example, when the distance between the two vehicles is less than a certain distance (for example, 20 meters), or the speed of the vehicle 203 suddenly decreases by more than a certain ratio (ie, emergency braking), the processing unit 130 emits a warning sound through the horn or transmits through the display. A warning message is displayed on the screen to alert the user to the road ahead.

According to another embodiment of the present invention, the vehicle 204 can obtain data of adjacent vehicles within a predetermined range through the connection between the vehicles, and establish a vehicle network database. For example, as previously mentioned, the vehicle 204 is based on a wireless network basis. The location of the platform, the signal strength, and the format of the service setting identifier are connected to the wireless network base station of the vehicle 203. Similarly, through the aforementioned connection method, the vehicles 202, 203 are connected to the wireless base station of the vehicle 201, the vehicles 205, 206 are connected to the wireless base station of the vehicle 204, and the vehicle 207 is connected to the wireless base station of the vehicle 206. When each vehicle is connected to the wireless network base station, the data corresponding to each vehicle can be obtained and a data string can be formed. For example, after the vehicles 202, 203 and the vehicle 201 are connected, the vehicle 204 can download the information corresponding to the vehicles 201 and 202 from the vehicle 203 and the connection between the vehicle 206 and the vehicle 207 through the vehicle 203. The vehicle 204 can receive the data corresponding to the vehicle 207 after the vehicles 205 and 206 are connected to the wireless base station of the vehicle. After obtaining the data of each vehicle, the processing unit 130 can analyze various conditions according to the above data, for example, whether the speed of the rear vehicle exceeds a certain speed (ie, the vehicle behind the vehicle wants to overtake), or according to the vehicle speed and the traveling direction of each vehicle. Calculate whether there will be a collision with the car, and immediately send a warning message to remind the user. However, in order to increase the processing efficiency of the processing unit 130, the processing unit 130 may select to process only the data of the vehicle located within a predetermined range. For example, by calculating the received positioning data and knowing that the distance between a certain vehicle and the vehicle is greater than 500 meters, the processing unit 130 removes the information of the vehicle to save storage space and improve processing efficiency.

Please refer to Figure 3 in conjunction with Figure 1. Figure 3 is a flow chart showing a communication method according to an embodiment of the present invention. In step S301, the positioning module 110 continuously receives the positioning data of the vehicle. The positioning module 110 can be a global satellite positioning system, a base station positioning system, or a combination of the two. In step S302, the communication unit 120 is strong according to the signal of the Wi-Fi radio base station of the plurality of neighboring objects. The format of the degree, location, and service setting identifier is linked to one of a plurality of adjacent objects. After the communication unit 120 is connected to one of the plurality of adjacent objects, the process proceeds to step S303, and the communication unit 120 receives the positioning data corresponding to one of the adjacent objects. The positioning data may include the speed, the position, the traveling direction, and the state of the vehicle (eg, braking, speeding, etc.). Next, in step S304, the processing unit 130 calculates the distance and relative relationship between the vehicle and one of the neighboring objects according to the positioning data of the vehicle and the positioning data corresponding to one of the neighboring objects. In step S305, the processing unit 130 generates an alert message according to the distance and relative relationship between the vehicle and one of the neighboring objects.

In summary, since many portable electronic devices, such as smart phones and tablet computers, have wireless base stations, wireless communication functions, positioning modules, and processing units, the user can according to the embodiments of the present invention. The proposed communication device and communication method can connect to and upload and download data of each vehicle amount by using the Wi-Fi and the corresponding device through the portable electronic device, so that the dedicated short-range communication technology without using the original V2V technology can be used. In the case of completing the V2V or V2P function, traffic accidents can be reduced to improve the user's road safety.

The above-described embodiments are described in sufficient detail to enable those of ordinary skill in the art to practice the system and method disclosed herein. The scope of protection of the present invention is defined by the scope of the appended claims.

100‧‧‧Communication device

110‧‧‧ Positioning Module

120‧‧‧Communication unit

130‧‧‧Processing unit

Claims (10)

A communication device is applicable to a vehicle, comprising: a positioning module for continuously receiving positioning data of the vehicle; and a communication unit for connecting to one of the plurality of adjacent objects according to a wireless local area network communication protocol, and Receiving positioning data corresponding to one of the adjacent objects; and a processing unit configured to obtain one of the vehicle and one of the neighboring objects according to the positioning data of the vehicle and the positioning data of one of the neighboring objects a location relationship, and generating a reminder message according to the location relationship; wherein one of the neighboring objects has a specific identification code, and the specific identification code is composed of a specific code and a service setting identifier. The communication device of claim 1, wherein the wireless local area network protocol is Wi-Fi. The communication device of claim 2, wherein the communication unit is further connected to one of the neighboring objects according to a signal strength and a location of the wireless base station of the Wi-Fi. The communication device of claim 1, wherein the communication unit further receives a data string corresponding to the other adjacent objects, wherein the data string comprises the adjacent object and the positioning data of the object adjacent to the adjacent object. The communication device of claim 1, wherein the positional relationship means that the adjacent object is located in front of the vehicle, and one of the adjacent objects is the closest to the vehicle in the adjacent object. . A communication method, applicable to a vehicle, comprising: continuously receiving positioning data of the vehicle; connecting to one of a plurality of neighboring objects according to a wireless area network communication protocol; and receiving positioning data corresponding to one of the neighboring objects; The positioning data of the vehicle and the positioning data of one of the adjacent objects obtains a positional relationship between the vehicle and one of the neighboring objects; and generates a reminder message according to the positional relationship; wherein one of the neighboring objects is There is a specific identification code, and the specific identification code is composed of a specific code and a service setting identification code. The communication method according to claim 6, wherein the wireless local area network communication protocol is Wi-Fi. The communication method of claim 6, further comprising: connecting the signal strength and location of the wireless base station according to the Wi-Fi to one of the neighboring objects. The communication method of claim 6, further comprising: receiving a data string corresponding to the other neighboring objects, wherein the data string comprises the neighboring object and the positioning data of the object adjacent to the adjacent object. The communication method according to claim 6, wherein the positional relationship means that the adjacent object is located in front of the vehicle, and one of the adjacent objects is the closest to the vehicle in the adjacent object. .