TW201531144A - Wireless bidirectional data transmission system and transmission method thereof - Google Patents

Abstract

Disclosed is a wireless bidirectional data transmission system and the transmission method thereof. The system includes unconnected first and second wireless devices. The first wireless device generates and outputs beacon packets continuously, and the second wireless device obtains a beacon packet, updates the beacon packet with response information to form a feedback packet, and returns the feedback packet to the first wireless device for analysis and the execution of a corresponding operation.

Description

Wireless two-way data transmission system and transmission method thereof

The present invention relates to a wireless transmission system and method thereof, and more particularly to a wireless transmission system for data transmission and a method thereof for data transmission by two wireless devices that are not connected.

In the prior art, Beacon technology has been commonly used in wireless transmission systems. The most common use techniques are two: the first one is a one-way data broadcasting technology, which is commonly used for data transmission of goods and activities in stores. The commodity transmission packet is periodically transmitted by the wireless transmission device of the store, and is obtained by the wireless receiving device in the transmission range to analyze the commodity data packet to directly display the product or the active content, or obtain the corresponding content from a third service device. Product or event information. Secondly, for the positioning technology, for example, the wireless transmission device continuously transmits the beacon packet 31 for acquisition by the wireless receiving device for detection, and performs positioning calculation according to the obtained packet data to locate the location of the wireless transmission device.

However, the application of these technologies is that the wireless transmission device unidirectionally broadcasts the data to the wireless receiving device, and is not the interactive data transmission between the wireless transmitting device and the wireless receiving device. Therefore, the wireless receiving device cannot know the data of the wireless transmitting device. Handle the situation, or you need to configure other hardware units of the wireless handshake type.

In view of this, the present invention discloses a wireless two-way data transmission system and a transmission method suitable for a wireless transmission device that does not establish a bidirectional connection.

The wireless two-way data transmission system disclosed in the present invention includes a first wireless device and a second wireless device, and each of the wireless devices has a control unit, a transmission unit and a receiving unit. The first wireless device continuously generates a beacon packet, and the beacon packet is transmitted to the second wireless device. The second wireless device updates the response information to the beacon packet to form a feedback packet, and then returns the packet for the first wireless device to obtain and analyze the response information of the feedback packet.

The wireless bidirectional data transmission method disclosed in the present invention is applicable to data Transmitting to a first wireless device and a second wireless device that are not connected, the method comprising: continuously generating and outputting a beacon packet by the first wireless device; and acquiring a message by the second wireless device Marking the packet, and updating the response information to the beacon packet of the time to form and output a feedback packet; and obtaining the feedback packet by the first wireless device and performing data analysis.

The invention is characterized in that: (1) even if two wireless devices that do not establish a two-way connection are connected, the data exchange behavior can be performed. (2) According to the demand of the security program, it can be designed to obtain the information of the other party's wireless device, or to communicate with the same beacon packet embedded in the demand data, which has high security flexibility. (3) It can be applied to devices that use beacon communication technology today, such as smart phones (such as ibeacon technology for iPhone and iPad), portable electronic devices (such as PDAs, notebook computers), or related Beacon technologies. The wireless access point device AP, or can be used for communication and communication of the wireless device, transmits the necessary data to the other party first, and is suitable for today's 802.11 (Wi-Fi), Bluetooth, short-range wireless communication (NFC). And a variety of wireless communication methods, so the applicability is also high.

10‧‧‧First wireless device

11‧‧‧First transmission unit

12‧‧‧First receiving unit

13‧‧‧First Control Unit

14‧‧‧First network unit

20‧‧‧Second wireless device

21‧‧‧Second transmission unit

22‧‧‧second receiving unit

23‧‧‧Second Control Unit

24‧‧‧Second network unit

31‧‧‧Beacon packet

32‧‧‧Reward packet

40‧‧‧ Third party service devices

51‧‧‧Synchronous Enquiry Packets

52‧‧‧Synchronized recognition of packets

53‧‧‧Transmission acknowledgement packet

S110-130‧‧‧Steps

FIG. 1 is a schematic diagram of a first system architecture of an embodiment of the present invention.

2 is a schematic diagram of a second system architecture of an embodiment of the present invention.

FIG. 3 is a schematic diagram showing the flow of data in the apparatus of the embodiment of the present invention.

FIG. 4 is a schematic diagram of a bidirectional data transmission process according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of a package according to an embodiment of the invention.

FIG. 6 is a schematic diagram of a package according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described in detail below with reference to the drawings.

1 is a schematic diagram of a first system architecture of an embodiment of the present invention. FIG. 4 is a schematic diagram of a wireless bidirectional data transmission process according to an embodiment of the present invention. This system includes at least two wireless devices The wireless device can be a portable electronic device with wireless communication capabilities such as a smart phone, a tablet computer, a PDA, a notebook computer, or a wireless base station or an access point device. In this embodiment, a first wireless device 10 and a second wireless device 20 are described, but the implementation of the technology is not limited thereto. The first wireless device 10 includes a first control unit 13, a first transmission unit 11, and a first receiving unit 12. The second wireless device 20 includes a second control unit 23, a second transmission unit 21, and a second unit. The unit 22 is received, and the first wireless device 10 and the second wireless device 20 are in an unconnected state. This method is explained as follows: a first wireless device 10 is continuously generated and a beacon packet 31 is output (step S110). The first control unit 13 may continuously generate a beacon packet 31 periodically, non-periodically, periodically, or irregularly, and transmit through the first transmission unit 11. The method of sending includes broadcast or directional wireless output.

The beacon packet 31 is acquired once by the second wireless device 20, and the response information is updated to the beacon packet 31 of the time to form and output a feedback packet 32 (step S120). The second receiving unit 22 is configured to obtain the beacon packet 31, and the second control unit 23 analyzes the content according to the format of the beacon packet 31, and updates a response information in the beacon packet 31 to form a feedback packet 32. (Also, the metric format of the beacon packet 31, here is an additional component name for the description). The second transmission unit 21 wirelessly transmits the feedback packet 32 by means of broadcast or directional wireless output.

The feedback packet 32 is acquired by the first wireless device 10 and data analysis is performed (step S130). The first receiving unit 12 obtains the feedback packet 32, and the first control unit 13 analyzes the response information included in the feedback packet 32 to perform a corresponding computing operation according to the response information, or to enable the corresponding execution program.

Referring to FIG. 1 , the packet format of the beacon packet 31 and the feedback packet 32 is assumed to be [02-01-1A-1A-FF of the Beacon Frame Header (Beacon Packet Header) of the beacon packet 31. -0D-00-02- 15], the narrative data carried includes [16 bytes - 2 bytes - byte 1 - byte 2-01], wherein byte 1 and byte 2 are writable News. The beacon header of the feedback packet 32 is [02-01-1A-1A-FF-4C-00-02-15], and the narrative data carried includes [byte group 1~byte 20-01], wherein The byte 1~byte 20 is writable information. Assume that the first wireless device 10 is a wireless base station that transmits the beacon packet 31 to the merchant, and the second wireless device 20 is a portable smart phone that is carried by the user. The following describes the implementation manner of the system in different situations:

(1) The first wireless device 10 does not acquire the information of the second wireless device 20. The beacon packet 31 sent by the first wireless device 10 can write the batch number of the beacon packet 31 in the byte 1 or the byte 2, and further, write the activity or product information of the merchant, and Wireless broadcast beacon packet 31. When the second wireless device 20 of the user is in the broadcast range of the first wireless device 10, the beacon packet 31 is obtained, and the batch number is obtained, or the product, the activity message, or the message is further analyzed. And obtain the corresponding products and activity materials from the relevant websites. The second wireless device 20 will number the batch and the activity information to be performed, such as providing the order number to take the goods for sale, providing the transaction number for the purchase and sale transaction, providing the article number to order the product, or only giving the member The information is updated with the beacon packet 31 by the behavior information such as the member login, or other types of information, or a new beacon packet 31 is newly created to form the feedback packet 32 of the above format, and the feedback is broadcasted. Packet 32. The first wireless device 10 obtains the feedback packet 32, and analyzes the second wireless device 20 to respond to the batch of the beacon packet 31, and what kind of activity or behavior is to be performed to execute the corresponding program. Or enable the corresponding service mechanism. During this period, the second wireless device 20 does not provide any hardware information to the first wireless device 10, but only responds to the activity information to be performed. Users do not have to worry about the hardware information of their smart phones being leaked.

(2) The second wireless device 20 must provide hardware information to the first wireless device 10. The beacon packet 31 sent by the first wireless device 10, in addition to the batch number of the beacon packet 31 written in the byte 1 or the byte 2, or In addition to the activity or product information, the device that receives the beacon packet 31 further needs to provide information such as hardware component information, hardware authentication information, user account data, and the like, and then wirelessly broadcasts the beacon packet 31. When the second wireless device 20 of the user obtains the beacon packet 31, the corresponding authentication information of the inquiry message needs to be updated to the beacon packet 31, or a new beacon packet 31 is newly established to form the above format. The packet 32 is fed back and the feedback packet 32 is broadcast again. The first wireless device 10 obtains the feedback packet 32, and further knows that the second wireless device 20 responds to the batch of the beacon packet 31, and further information about what kind of activity or behavior is to be performed. The authentication information provided by the second wireless device 20, and the means for confirming whether the identity of the second wireless device 20, or its user, is legal or recognized by the associated verification means can be performed. Thereafter, the first wireless device 10 will execute the corresponding program when the verification is successful, or enable the corresponding service mechanism, thereby ensuring the credibility of the communication between the two parties and ensuring the reliability of the activity or transaction execution.

Continuing to refer to FIG. 2, a schematic diagram of a second system architecture of an embodiment of the present invention is shown. The difference from the previous embodiment is that a third party service device 40 is further included. Suppose this is a merchant's server device, which is built with a variety of activities, products and membership information. The beacon packet 31 generated by the first control unit 13 can store relatively simple encoded information to represent product matching or path link information. When parsing by the second control unit 23, the second network unit 24 is controlled to be connected to the third-party service device 40 according to the encoded information to obtain corresponding merchandise or event information. On the other hand, the feedback packet 32 set or generated by the second control unit 23 can also use relatively simple coding information to represent similar behavior information such as taking goods, paying for a transaction, ordering an item, or logging in to a member. The first control unit 13 can obtain the corresponding behavior information according to the encoded information contained in the feedback packet 32 through the first network unit 14, and then complete the service specified by the second wireless device 20, or start the service. Corresponding execution program.

3 is a flow chart showing the flow of data in the device of the embodiment of the present invention. intention. The difference from the foregoing embodiment is that this embodiment is used for data transmission when the two wireless devices perform the handshake. Here, the TCP/IP handshake mode will be described.

The first wireless device 10 first transmits a synchronous inquiry packet 51 (SYN packet), and the synchronous inquiry packet 51 is regarded as the aforementioned beacon packet 31, and the batch number and the inquiry content can be combined with the annotation of the synchronous inquiry packet 51 or In a byte that is not in use. When the second wireless device 20 returns a synchronization acknowledgement packet 52 (SYN-ACK packet), it may provide a response message to the annotation of the synchronization acknowledgement packet 52 or an unused bit. The synchronization acknowledgement packet 52 is regarded as the foregoing. Feedback packet 32. So far, the first wireless device 10 and the second wireless device 20 are not fully connected, but the data required by both parties has been communicated. Whether the first wireless device 10 is to transmit an acknowledgment packet 53 (ACK packet) to achieve a double-ended connection depends on the designer's needs.

However, in the above embodiments, the identification of the packet by the wireless device is determined by the design requirements of the designer, and there is no limitation. Secondly, although the above is explained by the interaction between the wireless device between the merchant and the user, it can also be used in various situations such as class name, work punch, unit access control, etc., but there is no limit. Thirdly, in the above embodiment, although the case where the two devices are not one-to-one is described, it is also applicable to one-to-one, one-to-many, many-to-many, etc., by the batch of the beacon packet 31. The secondary coding, the inquiry information, and the response information of the feedback packet 32 are identified, or the domain and the network segment are separated, thereby being separated by related or similar technical means, and there is no limitation.

Please refer to FIG. 1, FIG. 5 and FIG. 6 for the packet format of the beacon packet 31 and the feedback packet 32. The overall format is similar to the previous one, and the technologies are applicable to device communication of various vendors. As shown in FIG. 1 , the beacon packet 31 is [02-01-1A-1A-FF-0D-00-02-15], wherein 01-1A refers to the identification flag value of the beacon packet 31, 0D-00 Refers to the manufacturer's code, such as 0x000D is corresponding to Texas Instruments "Texas Instruments Inc.". 01-1A of the feedback packet 32 refers to the identification flag value of the packet, which is the identification flag value of the corresponding beacon packet 31, and the manufacturer code is 4C-00, that is, 0x004C, which corresponds to Apple Inc. It clearly shows the feasibility of connecting wireless base stations and handheld devices of different manufacturers.

As shown in FIG. 5, it is assumed here that the two handheld devices perform wireless transmission, the beacon packet 31 is [02-01-1A-1A-FF-08-00-02-15], and the manufacturer code 0x0008 is corresponding to Motorola. Company "Motorola Inc." The manufacturer code of the feedback packet 32 is 0x0001, which corresponds to Nokia Inc. It is also clear that the connection of handheld devices of different manufacturers is feasible.

As shown in FIG. 6 , it is assumed that the computer and the handheld device perform wireless transmission. The beacon packet 31 is [02-01-1A-1A-FF-00-00-02-15], and the manufacturer code 0x0000 is corresponding. Ericsson Inc. "Ericsson Inc." The vendor code for the feedback packet 32 is 0x0003, which corresponds to IBM Corp. It is also clear that the connection between computers and handheld devices of different manufacturers is feasible.

It is to be understood that the present invention is not intended to limit the scope of the embodiments of the present invention. That is, the equivalent changes and modifications made in accordance with the scope of the patent application of the present invention or the scope of the invention are covered by the scope of the invention.

10‧‧‧First wireless device

11‧‧‧First transmission unit

12‧‧‧First receiving unit

13‧‧‧First Control Unit

20‧‧‧Second wireless device

21‧‧‧Second transmission unit

22‧‧‧second receiving unit

23‧‧‧Second Control Unit

31‧‧‧Beacon packet

32‧‧‧Reward packet

Claims (10)

A wireless two-way data transmission system, configured to transmit data between a plurality of wireless devices that are not connected to a bidirectional connection, the system comprising: a first wireless device having a first control unit, a first transmission unit, and a first receiving unit, the first control unit continuously generates a beacon packet, the first transmitting unit is configured to transmit the beacon packet, and the first receiving module receives a feedback packet, where the first control unit is A response information included in the feedback packet is analyzed; and a second wireless device has a second control unit, a second transmission unit, and a second receiving unit, where the second receiving unit is configured to obtain the beacon packet, The second control unit updates the response information to the beacon packet to form the feedback packet, and the second transmission unit outputs the feedback packet. According to the wireless two-way data transmission system of claim 1, wherein the response information of the feedback packet includes at least one of a packet sequence number of the beacon packet and authentication information of the second wireless device, the first control unit Based on the response information, an execution procedure corresponding to the response information is enabled. According to the wireless two-way data transmission system of claim 1, wherein the response information of the feedback packet includes at least one of a packet sequence number of the beacon packet and authentication information of the second wireless device, the first control unit Based on the response information, a third party service device is requested to execute a service command. The wireless two-way data transmission system according to claim 1, wherein the first wireless device outputs the beacon packet in a broadcast or directional manner, and the second wireless device is broadcast or directional. The feedback packet is output. The wireless two-way data transmission system of claim 1, wherein the first wireless device outputs the beacon packet periodically or non-periodically. The wireless two-way data transmission system according to claim 1, wherein the first wireless device transmits the beacon packet in the same or different frequency band, and obtains the feedback packet in a frequency band in which the beacon packet is output. The wireless two-way data transmission system according to claim 1, wherein the first wireless device adjusts the transmission gain according to the frequency and time interval of obtaining the feedback packet. A wireless two-way data transmission method is applicable between a first wireless device and a second wireless device that do not establish a bidirectional connection, the method comprising: generating and outputting a beacon by the first wireless device continuously a packet; a beacon packet obtained by the second wireless device, and the response information is updated in the beacon packet to form and output a feedback packet; and the feedback packet is obtained by the first wireless device and analyzed . According to the wireless bidirectional data transmission method of claim 7, wherein the response information of the feedback packet includes at least one of a packet sequence number of the beacon packet and authentication information of the second wireless device, the first wireless device After obtaining the feedback packet, the method further includes the following steps: the first wireless device relies on the response information to enable an execution procedure corresponding to the response information. According to the wireless bidirectional data transmission method of claim 7, wherein the response information of the feedback packet includes a packet sequence number of the beacon packet and At least one of the authentication information of the second wireless device, after the first wireless device obtains the feedback packet, the method further includes the step of: requesting, by the first wireless device, a third-party service device to execute a service command according to the response information.