TWI612776B - Method, device and system for adaptability information service based on visible light beacon - Google Patents

Description

Method, device and system for adaptability information service based on visible light beacon

The present invention is a technical solution for a suitability message service, especially a technical solution for a suitability message service based on visible light beacons.

In order to provide a user-based location-based message service, a telecommunications service provider may deploy a beacon device capable of timing broadcast signals in the service communication field, and when the mobile device enters the service range, The perceived identifier displays the corresponding message content.

Bluetooth beacons used in the prior art are often used in indoor positioning services for smart phones because of their low cost and easy installation. However, the Bluetooth signal is easily affected by the vehicle body shadowing effect, making it difficult to transmit the signal to the mobile device in the car. Therefore, the Bluetooth-aware technology is not suitable for the driving situation, and it is difficult to directly apply to the ground-based information service of the Internet of Vehicles.

In order to solve the aforementioned technical problems, the prior art further changes the beacon to Visible Light Communication (VLC) to avoid the problem of vehicle body shielding.

Conventional application to the Intelligent Transport System (ITS) visible light communication technology, for example, US Patent US5633629A "Traffic Information System using Light Emitting Diodes", US Patent US 8188879 "LED Light Global Positioning and Routing Communication System", China patent CN204131800 "Intelligent Street Light System Based on Visible Light Communication", Chinese Patent CN104348546 "Vehicle Visible Light Communication System", etc., which are disclosed in the technical content of the vehicle, are mostly stationary or low-speed (50kmph or less) when providing suitable communication services to vehicles. In the moving situation, the position of the optical signal receiving component, the receiving angle of the optical signal, and the source noise of the surrounding environment are constantly changing due to the high-speed movement of the vehicle, thereby affecting the recognition effect of the visible light message. Therefore, the use of the prior art does not provide excellent optical communication quality, which in turn affects the user's willingness to use.

In summary, how to provide a technical means for solving the above-mentioned technical problems is a technical problem that needs to be solved in the field.

In order to solve the problems disclosed above, the object of the present invention is to provide a technical means for a suitability message service based on visible light beacons.

To achieve the above object, the present invention proposes a method of location-based information service based on visible light beacons. The foregoing method includes the following steps: the system side adds a cyclic redundancy check code to the message header of the broadcast visible light signal information, the system side modulates the visible light signal information, and the system side repeatedly transmits the message header several times, and the plurality of message headers The symbol lengths are inconsistent, so that the message header sequence forms a set of identifiable patterns, and the vehicle-mounted device receives the visible light signal information through the optical signal receiving component, and filters out the optical band that is not the visible light signal information, and the vehicle-mounted device transmits the visible light signal information. Modulation decoding, on-vehicle device end through cyclic redundancy check to determine whether the visible light signal information is a beacon signal, and the in-vehicle device end determines the visible light signal information, the vehicle-mounted device by matching the identifiable pattern of the message header sequence of the visible light signal information The terminal connects to the beacon message service system according to the beacon identification code in the visible light signal information, and queries the corresponding message content.

In order to achieve the above object, the present invention further proposes a suitability based on visible light beacons. The message service method is applied to the suitability message service assembly system and includes the following steps: adding a cyclic redundancy check code, modulating the visible light signal information, and repeatedly transmitting the message header to the message header of the broadcast visible light signal information Several times, and the symbol lengths of the plurality of message headers are inconsistent, so that the message header sequence forms a set of identifiable patterns, and the external vehicle device is triggered to recognize the visible light signal information, and the message header sequence has an identifiable pattern, so that The vehicle-mounted device communicates with the beacon message service system according to the beacon identification code in the visible light signal information, and queries the corresponding message content.

In order to achieve the above object, the present invention further provides a method for the suitability of a visible light beacon based on a visible beacon. The method is applied to an in-vehicle device, comprising the steps of: receiving visible light signal information from an external suitability information service system, and filtering out non-visible light. The optical band of the signal information, the modulation and decoding of the visible light signal information, and the cyclic redundancy check to determine whether the visible light signal information is a beacon signal, and the visible light signal information is formed by a plurality of symbol length inconsistent message headers. A set of identifiable patterns whose message header sequences match the identifiable pattern to confirm the visible light signal information, according to the beacon identification code in the visible light signal information, to communicate with the external beacon message service system, and to query the corresponding message content.

To achieve the above object, the present invention further provides a ground-based information service assembly system based on visible light beacons. The aforementioned assembly system includes a beacon message service system and a visible light beacon device. The aforementioned beacon message service system is used to provide a connection device message service. The visible light beacon device communicates with the beacon message service system and provides visible light signal information to an external vehicle-mounted device, wherein the message header of the visible light signal information is added to the cyclic redundancy check code, and the visible light beacon device repeatedly transmits the message header Several times, and the symbol lengths of multiple message headers are inconsistent, so that the message header sequence forms a set of recognizable patterns. Among them, the visible light signal system triggers the vehicle loading After the visible light signal information is identified, the message header sequence has an identifiable pattern, so that the vehicle device device connects to the beacon message service system according to the beacon identification code in the visible light signal information, and queries the corresponding message content.

In order to achieve the above object, the present invention further provides an in-vehicle device for a suitability message service based on visible light beacons. The vehicle-mounted device includes a processing module, and a visible light receiving module and a network communication module connected to the processing module. The visible light signal receiving module receives the visible light signal information from the external suitability information service system, and filters out the optical band that is not the visible light signal information, and then the processing module modulates and decodes the visible light signal information and transmits the cyclic redundancy. In order to determine whether the visible light signal information is a beacon signal, and to determine the visible light signal information, a set of identifiable patterns formed by a plurality of symbol length inconsistent message headers, whether the message header sequence matches the recognizable pattern to confirm visible light Signal information. Furthermore, the processing module configures the network communication module to connect to the external beacon message service system according to the beacon identification code in the visible light signal information, and query the corresponding message content.

In summary, the technical means provided by the present invention can improve the length of the message headers in the visible light signal information, so that the message header sequence forms a set of identifiable patterns, thereby improving the transceiver end of the vehicle at high speed. The quality of optical communication between.

S101~S108‧‧‧Steps

S201~S204‧‧‧Steps

S301~S306‧‧‧Steps

1‧‧‧Spot-based information service assembly system based on visible light beacons

10‧‧‧Beacon Message Service System

101‧‧‧Beacon Management Module

102‧‧‧Message Content Management Module

103‧‧‧Management interface module

11‧‧‧ Visible beacon device

111‧‧‧Network communication control module

112‧‧‧ Visible light broadcasting module

2‧‧‧Vehicle devices

21‧‧‧ Visible light receiving module

22‧‧‧Network communication module

23‧‧‧Information Content Database

24‧‧‧Operation interface module

1 is a flow chart of a method for serving a locality message based on visible light beacons in the first embodiment of the present invention.

2 is a flow chart of a method for serving a locality message based on a visible beacon according to a second embodiment of the present invention.

FIG. 3 is a flow chart of a method for serving a locality message based on a visible light beacon according to a third embodiment of the present invention.

4 is a block diagram showing a fourth embodiment of a visible-light beacon-based suitability message service assembly system. intention.

FIG. 5 is a schematic diagram of an internal block of a beacon message service system in another embodiment of the present invention.

FIG. 6 is a schematic diagram of an internal block of a visible light beacon device in another embodiment of the present invention.

FIG. 7 is a block diagram of a vehicle-mounted device for a suitability message service based on a visible light beacon according to a fifth embodiment of the present invention.

FIG. 8 is a schematic diagram of a sequence pattern composed of a plurality of different symbol length message headers.

The specific embodiments are described below to illustrate the embodiments of the present invention, but are not intended to limit the scope of the present invention.

Please refer to FIG. 1 , which is a flowchart of a method for serving a suitability message based on a visible beacon according to a first embodiment of the present invention, including the following steps:

S101: The system side adds a Cyclical Redundancy Check code to the message header of the broadcast visible light signal.

S102: The system side modulates the visible light signal information.

S103: The system side repeatedly sends the message header of the visible light information several times, and the symbol lengths of the plurality of message headers are inconsistent, so that the plurality of message header sequences form a set of identifiable patterns.

S104: The vehicle-mounted device receives the visible light signal information through the optical signal receiving component, and optically filters the optical band that is not the visible light signal.

S105: The vehicle device device performs modulation and decoding on visible light signal information.

S106: The vehicle-mounted device end passes the cyclic redundancy check to determine whether the visible light signal information is a beacon signal.

S107: The vehicle device end determines that the message header sequence of the visible light signal information matches the identifiable pattern, that is, confirms the visible light signal information.

S108: The vehicle device device connects to the beacon message service system according to the beacon identification code in the visible light signal information, and queries the corresponding message content.

Please refer to FIG. 2 , which is a flowchart of a method for serving a locality message based on a visible beacon according to a second embodiment of the present invention. The foregoing method is applied to the suitability message service assembly system and includes the following steps:

S201: Add a cyclic redundancy check code to the message header of the visible light signal information of the broadcast.

S202: Modulate the visible light signal information.

S203: The message header is repeatedly sent several times, and the symbol lengths of the plurality of message headers are inconsistent, so that the message header sequence forms a set of identifiable patterns.

S204: triggering an external vehicle device to identify the visible light signal information, and the message header sequence has an identifiable pattern, so that the vehicle device device communicates with the beacon message service system according to the beacon identification code in the visible light signal information. To query the corresponding message content.

Please refer to FIG. 3 , which is a flowchart of a method for serving a locality message based on a visible light beacon according to a third embodiment of the present invention, which is applied to an in-vehicle device and includes the following steps:

S301: Receive visible light signal information from an external locality information service system, and filter out optical bands that are not visible light information.

S302: Perform modulation and decoding on visible light signal information.

S303: Perform a cyclic redundancy check.

S304: Determine whether the aforementioned visible light signal information is a beacon signal? If yes, execute S305; if not, end.

S305: determining, in the visible light signal information, a set of identifiable patterns formed by the plurality of symbol length inconsistent message headers, whether the message header sequence matches the identifiable pattern to confirm the visible light signal information, and if yes, executing S306; Execute S301.

S306: Connect the external beacon message service system according to the beacon identification code in the visible light signal information, and query the corresponding message content.

Please refer to FIG. 4 , which is a block diagram of a fourth embodiment of a visible light beacon based suitability message service assembly system. It includes a beacon message service system 10 and a visible light beacon device 11. The aforementioned beacon message service system 10 is used to provide a connection device message service. The visible light beacon device 11 is connected to the beacon message service system 10 and provides visible light signal information to the external vehicle-mounted device 2. The message header of the visible light signal information is added to the cyclic redundancy check code, and the visible light beacon device 11 is repeated. The message header is sent several times, and the symbol lengths of the multiple message headers are inconsistent so that the message header sequence forms a set of recognizable patterns. The visible light signal information triggers the on-vehicle device 2 to recognize the visible light signal with the identifiable pattern, so that the vehicle-mounted device 2 connects to the beacon message service system 10 according to the beacon identification code in the visible light signal information, and queries Corresponding message content.

Referring to FIG. 5, in another embodiment, the foregoing beacon message service system 10 further includes a beacon management module 101, a message content management module 102, and a management interface module 103. The beacon management module 101 is configured to configure the beacon content broadcast by the visible beacon device 11. The message content management module 102 is configured to provide the message content of the in-vehicle device 2. The management interface module 103 connects the beacon management module 101 and the message content management module 102, and provides an external user-side configuration beacon management module 101 and a message content management module 102.

The aforementioned beacon management module 101, message content management module 102, and management media The face module 103 can be realized by a technical solution running on a software module, a hardware circuit, a programmable digital circuit, a programmable control chip, etc., having a computing capability electronic device.

Referring to FIG. 6 , in another embodiment, the visible light beacon device 11 further includes a network communication control module 111 and a visible light signal broadcast module 112 . The foregoing network communication control module 111 is used for communication connection with the beacon message service system 10. The visible light signal broadcast module 112 is connected to the network communication control module 111 for providing visible light signal information.

The network communication control module 111 and the visible light signal broadcast module 112 can be realized by a software module running on a software module having a computing capability, a hardware circuit, a programmable digital circuit, a programmable control chip, and the like. It.

In another embodiment, the aforementioned visible light beacon device 11 is provided in a street light device. In another embodiment, the visible light beacon device 11 communicates with the beacon message service system 10 via wireless communication or power line communication.

Please refer to FIG. 7, which is a block diagram of a vehicle-mounted device 2 based on a visible-light beacon-based suitability message service according to a fifth embodiment of the present invention. The in-vehicle device 2 includes a processing module 20, a visible light receiving module 21 connected to the processing module, and a network communication module 22. The visible light signal receiving module 21 includes an optical receiver for receiving visible light signal information from the external suitability information service system, and filtering out the optical band not belonging to the visible light signal information, and then the processing module 20 modulating the visible light signal information. Decoding, through the cyclic redundancy check to determine whether the visible light signal information is a beacon signal, determine the visible light signal information, and a plurality of symbol length inconsistent message headers form a set of identifiable patterns, whether the message header sequence matches A pattern can be identified to confirm visible light signal information. The network communication module connects to the external beacon message service system 10 according to the beacon identification code in the visible light signal information, and queries the corresponding message content.

In another embodiment, the in-vehicle device 2 further includes a message content database 23 and an operation interface module 24 connected to the processing module 20. The aforementioned message content database 23 is used to access the message content. The foregoing operation interface module 24 is connected to the message content database 23 to provide an external user to access the message content.

The processing module 20, the visible light receiving module 21, the network communication module 22, the message content database 23, and the operation interface module 24 can be operated through a software module and a hardware circuit of an electronic device having computing power. It can be realized by technical solutions such as programmable digital circuits and programmable control chips.

The present invention is described below with respect to the visible-light beacon-based suitability message service assembly system 1 of the fourth embodiment, but the technical means of other embodiments can also achieve the same or similar technical effects, which are specifically described.

Referring to FIG. 4, when the vehicle provided with the vehicle-mounted device 2 is close to a position or an object (for example, a street light) provided with the visible light beacon device 11, the vehicle-mounted device 2 receives a plurality of different symbol lengths (for example, short and medium). And long) the sequence pattern composed of the message headers (Fig. 8). At this time, the vehicle-mounted device 2 determines whether the received optical signal is the specified visible light signal information through the identification sequence pattern, and when the judgment is true, The visible light signal information content obtains the beacon identification code, and accesses the information to the beacon message service system 10 according to the beacon identification code. In this case, the sequence pattern composed of message headers with different symbol lengths can effectively improve and solve the communication quality problem when the vehicle moves at high speed.

The detailed description of the present invention is intended to be illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention. In the scope of patents.

S101~S108‧‧‧Steps

Claims (10)

A method for adapting a locality message based on visible beacon includes the following steps: the system adds a cyclic redundancy check code to a message header of a visible light signal of the broadcast; the system modulates the visible light signal; the system repeatedly transmits The message header is several times, and the symbol lengths of the plurality of message headers are inconsistent, so that the message header sequence forms a set of identifiable patterns; the vehicle-mounted device receives the visible light signal through the optical signal receiving component, and filters out The light-emitting band of the visible light signal information; the vehicle-mounted device end modulates and decodes the visible light signal information; the vehicle-mounted device end passes the cyclic redundancy check to determine whether the visible light signal information is a beacon signal; Determining that the message header sequence of the visible light signal information matches the identifiable pattern to confirm the visible light signal information; and the vehicle-mounted device terminal connects to the beacon message service system according to the beacon identification code in the visible light signal information, and queries Corresponding message content. A suitability message service method based on visible light beacon is applied to a suitability message service assembly system, comprising the steps of: adding a cyclic redundancy check code to a message header of a broadcast visible light signal; and modulating the visible light signal information; Repeatingly transmitting the message header several times, and the symbol lengths of the plurality of message headers are inconsistent, so that the message header sequence forms a set of identifiable patterns; and triggering the external vehicle device to identify the visible light signal information and its message header Sequence identification After the patterning, the in-vehicle device end communicates with the beacon message service system according to the beacon identification code in the visible light signal information, and queries the corresponding message content. A method for adapting a local information service based on a visible light beacon, which is applied to an in-vehicle device, comprising the steps of: receiving visible light signal information from an external locality information service system, and filtering out an optical band that does not belong to the visible light information; the visible light signal The information is modulated and decoded; the cyclic redundancy check is used to determine whether the visible light signal information is a beacon signal; and the visible light signal information is determined by a plurality of symbol length inconsistent message headers formed by a set of identifiable patterns. Whether the message header sequence matches the identifiable pattern to confirm the visible light signal information; and according to the beacon identification code in the visible light signal information, the external beacon message service system is connected by communication, and the corresponding message content is queried. A visibility-based message service assembly system based on visible beacons, comprising: a beacon message service system for providing a connection device message service; and a visible light beacon device connected to the beacon message service system, the visible beacon device Providing visible light signal information to an external vehicle-mounted device, wherein the information header of the visible light information is added to a cyclic redundancy check code, and the visible light beacon device repeatedly transmits the message header several times, and the plurality of message headers The symbol lengths are inconsistent, so that the message header sequence forms a set of identifiable patterns; wherein the visible light signal information triggers the onboard device to recognize the visible light signal information and the message header sequence has an identifiable pattern to enable the vehicle The device side is based on the visible light The beacon identification code in the signal information is connected to the beacon message service system by communication, and the corresponding message content is queried. The visible-light beacon-based suitability message service assembly system of claim 4, wherein the beacon message service system further comprises: a beacon management module, configured to configure beacon content broadcast by the visible beacon device; a message content management module for providing message content of the in-vehicle device; a management interface module, connecting the beacon management module and the message content management module, and providing an external user to configure the beacon management module and The message content management module. The visible light beacon-based suitability message service assembly system of claim 4, wherein the visible light beacon device further comprises: a network communication control module for communicating with the beacon message service system; and a visible light signal broadcast The module is connected to the network communication control module for providing visible light signal information. The visible-light beacon-based suitability message service assembly system of claim 4, wherein the visible beacon device is disposed in a street light device. The visible-light beacon-based suitability message service assembly system of claim 4, wherein the visible beacon device communicates with the beacon message service system via wireless communication or power line communication. An in-vehicle device for a suitability message service based on a visible light beacon, comprising: a visible light signal receiving module, receiving visible light signal information from an external suitability information service system, and filtering out an optical band that does not belong to the visible light signal information; processing module Connecting the visible light signal receiving module and adjusting the visible light signal information Variable decoding, through cyclic redundancy check to determine whether the visible light signal information is a beacon signal, and in the visible light signal information, a set of identifiable patterns formed by a plurality of symbol length inconsistent message headers, and a message header thereof Whether the sequence matches the identifiable pattern to confirm the visible light signal information; and the network communication module is connected to the processing module, and connects to the external beacon message service system according to the beacon identification code in the visible light signal information, And query the corresponding message content. The on-vehicle device of the visible-light beacon-based suitability message service according to claim 9, further comprising: a message content database connected to the processing module to access the message content; and an operation interface module connected to the processing module Group to provide external usage to access message content.