CN105635943B - Low-power-consumption Bluetooth beacon data interaction device, beacon device and method - Google Patents

Abstract

The invention provides a data interaction method based on a low-power-consumption Bluetooth technology, a beacon device adopting the method and a beacon data interaction device. The method comprises the following steps: the beacon device sends a broadcast packet in a broadcast mode and monitors a scanning request packet; the beacon data interaction device monitors a broadcast packet sent by the beacon device and determines that the beacon device starts to operate; the beacon data interaction device processes data needing to be sent to the beacon device to generate equipment address data; the beacon data interaction device generates the device address data into a standard scanning request packet; and after receiving the scanning request packet sent by the beacon data interaction device, the beacon device extracts the equipment address data and analyzes the data in the equipment address data.

Description

Low-power bluetooth beacon data interaction device, beacon device and method

technical field

The present invention relates to the technical field of bluetooth wireless communication, and in particular, to a beacon device and a data interaction method based on low-power bluetooth technology (BLE).

Background technique

With the development of short-distance wireless communication technology, more and more Beacon (beacon) applications appear in front of people. The main working mode of the Beacon device is to broadcast the device's own ID and specific information to the surrounding by wireless, so it can be widely used in commercial advertisements, indoor positioning and other occasions. With the release of the Bluetooth 4.0 specification, the low-power Bluetooth (BLE) technology introduced in it has begun to popularize on mobile terminals such as smartphones represented by the iPhone, and more and more peripherals have begun to support BLE technology. The biggest feature of BLE technology is low power consumption, and it is simpler and cheaper than traditional Bluetooth, Wifi and other technical protocols. In addition, its own broadcast mode is especially suitable for Beacon applications.

Therefore, in 2013, Apple in the United States took the lead in launching the Beacon solution of iBeacon, which uses BLE technology, and in 2015, Google also launched a Beacon solution called Eddystone, which is also based on BLE technology. At present, Beacon devices and applications based on BLE technology have begun to enter a stage of substantial growth.

For Beacon devices (the following refer to Beacon devices based on BLE technology), in addition to the broadcast mode for sending information, it also needs to support the function of data configuration, so as to facilitate manufacturers to configure and update the information sent by broadcast. There are currently two main methods for data configuration of Beacon devices:

The first way: The Beacon device only has a BLE communication module. The master device first establishes a BLE connection by wireless, and performs data exchange in the connection mode.

The second way: the Beacon device needs to have a UART serial port or a similar standard communication interface, and other master devices exchange data with the Beacon device through this interface.

In the BLE technical specification, the Link Layer of the device supports a total of five state machines, namely, the Standby state, the Scanning state, the Initiating state, the Advertising state and the Connection state, which can be in different working states according to the actual application. For devices using BLE technology, the number of working modes involves the complexity of software and hardware design, which accordingly affects the power consumption and cost of BLE chips.

In addition, in the BLE technical specification, the data communication in the connected state also defines the corresponding protocol stack. As a unified standard for data interaction between BLE devices, it is also a considerable part of software and hardware resources. Therefore, for a Beacon device, if a BLE wireless connection is used for data exchange, a standard protocol stack needs to be added to support it, which consumes a lot of resources. For the aforementioned second data interaction mode, there is no need to add the support of the protocol stack, which obviously saves the hardware and software resources of this part, but the cost is to increase other data communication interfaces, and also pay the corresponding hardware and software costs.

All in all, the current Beacon devices based on Bluetooth Low Energy (BLE) technology all adopt a complete BLE solution, supporting modes such as broadcasting, scanning, and connection establishment in the BLE specification, as well as the corresponding software protocol stack. Among them, the Beacon device uses the BLE broadcast mode to realize the most commonly used functions such as sending advertising data and positioning information; and the configuration and update of the data in the Beacon device is usually performed after establishing a connection with other Bluetooth 4.0 terminals. That is, the connection mode of BLE and the protocol stack for related connection and data communication processing are required. For devices using BLE technology, the number of working modes involves the complexity of software and hardware design, which accordingly affects the power consumption and cost of BLE chips.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a Beacon device and a data interaction method based on the low-power bluetooth BLE technology, which greatly reduces the implementation complexity of the Beacon device while satisfying the broadcast function and data configuration function required by the Beacon application. and cost.

In order to solve the above technical problems, the present invention provides a Beacon device based on low-power bluetooth BLE technology, including an MCU module, a storage module, a BLE parameter configuration module, a BLE broadcast module, an optional security management module, and an optional firmware upgrade. module.

The MCU module is used for the main function control of the Beacon device and the analysis and processing of BLE-related data.

The storage module is used to store program codes, application data and other configuration information.

The BLE parameter configuration module is used to configure the control of the BLE broadcast module and related parameters, which is equivalent to greatly simplifying the protocol stack of the Bluetooth Host part of the BLE standard specification: only the GAP module is implemented and simplified, and deleted L2CAP, SM, GATT, ATT modules defined in the specification.

The said BLE broadcast module conforms to the BLE standard specification, and implements the Bluetooth Controller part in the BLE standard specification.

The Link Layer module in the BLE broadcast module only implements two state machines, Standby and Advertising, and deletes the three state machines of Scanning, Initiating and Connection.

The BLE broadcast module supports at least the processing of three data packets, ADV_IND, SCAN_REQ and SCAN_RSP in the BLE standard specification, wherein ADV_IND and SCAN_RSP are the broadcast packets and scan response packets sent by the Beacon device respectively, and SCAN_REQ is the received scan request. data pack.

In one embodiment, the optional security management module is used to encrypt and decrypt data in data interaction.

In one embodiment, the optional firmware upgrade module is used to upgrade the firmware of the device.

In order to solve the above technical problems, the present invention also provides a Beacon data interaction device based on low-power bluetooth BLE technology to perform data interaction with the Beacon device, including an MCU module, a storage module, a human-computer interaction module, a BLE scan module, and an optional module. Optional security management module, optional firmware upgrade module.

The MCU module is used for the main function control and data processing of the Beacon data interaction device, etc.

The storage module is used to store program codes, application data and other configuration information;

The human-computer interaction module is used to perform human-computer interaction on the device, including input of information and data, and human-computer interface control during data interaction;

The said BLE scanning module conforms to the BLE standard specification, and implements the Bluetooth Controller part in the BLE standard specification;

The Link Layer sub-module in the BLE scanning module implements at least the Scanning state machine defined in the BLE standard specification;

The BLE scanning module supports at least the processing of three data packets, ADV_IND, SCAN_REQ and SCAN_RSP in the BLE standard specification, wherein SCAN_REQ is the scanning request packet sent by the Beacon data exchange device, ADV_IND and SCAN_RSP are the received broadcast packets and Scan response packets;

The optional security management module is used to encrypt and decrypt the data in the data interaction;

The optional firmware upgrade module is used to upgrade the firmware of the device.

In order to solve the above-mentioned technical problems, the present invention also provides a method for data interaction with the Beacon device, comprising the steps of:

The Beacon device is powered on to enter the broadcast mode, sends the ADV_IND broadcast packet, and monitors the SCAN_REQ request packet.

A Beacon data interaction device monitors the ADV_IND broadcast packet of the Beacon device to determine that the Beacon device has started running.

The Beacon data interaction device processes the data to be sent to the Beacon device to generate a 48-bit random device address.

The Beacon data exchange device generates a standard SCAN_REQ scan request packet with the device address, and sends it to the Beacon device.

After receiving the SCAN_REQ scan request packet sent by the Beacon data exchange device, the Beacon device takes out its device address and parses out the data therein.

The Beacon device performs corresponding processing on the parsed data according to actual requirements, such as storage, parameter update, data update, command control, and the like.

In one embodiment, after receiving the SCAN_REQ scan request packet sent by the Beacon data exchange device, the Beacon device may generate the data to be replied as a SCAN_RSP scan response packet, and then send it to the Beacon data exchange device.

In one embodiment, the scan request packet, the broadcast packet, and the scan response packet conform to the Bluetooth low energy standard specification.

In one embodiment, the data exchanged between the Beacon data interaction device and the Beacon device can be encrypted and decrypted.

In one embodiment, the Beacon device and the Beacon data interaction device perform data reception and transmission in a broadcast mode, and do not need to perform data reception and transmission in a connection mode.

In one embodiment, the data exchanged between the Beacon device and the Beacon data interaction device includes at least one or more of the following:

Broadcast data to be updated;

firmware program data;

Firmware update control commands.

In one embodiment, when the data exchanged between the Beacon device and the Beacon data interaction device is firmware program data or firmware update control instructions, the Beacon data interaction device disassembles the firmware program data or firmware update control instructions. It is divided into a plurality of the scan request packets and sent to the Beacon device, so as to realize the firmware update of the Beacon device.

The beneficial effects of the present invention are: different from the prior art solutions, using the Beacon device implementation solution and the data interaction method of the present invention, while supporting the popular functions of current Beacon applications, such as Beacon broadcast data configuration and even device firmware upgrade, greatly The implementation of the Bluetooth BLE part is simplified, and there is no need to design and develop other communication interfaces. The performance and functions are not affected, and the cost of the entire Beacon solution can be greatly reduced. The product also affects the appearance design because it does not require an additional opening for wired connection, and The flexibility and convenience of wireless data interaction are also preserved. Secondly, using the data interaction method of the present invention, the data interaction operation of the Beacon device is performed through a specific Beacon data interaction device, and it is difficult for a third party to directly modify the data of the Beacon device directly through standard BLE devices or various intelligent terminals that support BLE. Therefore, it is better in terms of safety. In addition, using the data interaction method of the present invention, when performing data interaction with the Beacon device, there is no need to switch to the connection mode, so there is no need to interrupt the current normal broadcast working state, and seamless data configuration and update can be performed in the broadcast mode. , which has better user experience than the prior art.

Description of drawings

The above summary of the present invention and the following detailed description will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are merely illustrative of the claimed invention. In the drawings, the same reference numbers represent the same or similar elements.

1 is a schematic structural diagram of a beacon device according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the complete BLE technology implementation structure in the Bluetooth 4.0 standard specification;

3 is a schematic structural diagram of BLE technology implementation in an embodiment of the Beacon device in the present invention;

Figure 4 is a schematic diagram of the state machine in the Link Layer module in the Bluetooth low energy BLE standard specification;

5 is a schematic diagram of a Link Layer state machine of a Bluetooth BLE broadcast module in a Beacon device according to an embodiment of the present invention;

6 is a schematic structural diagram of an embodiment of the Beacon data interaction device in the present invention;

Figure 7 is a schematic diagram of the Payload data format of the standard SCAN_REQ scan packet of BLE in the Bluetooth 4.0 standard specification;

8 is a flowchart of an embodiment of a Beacon device data interaction method of the present invention;

FIG. 9 is a flow chart of another embodiment of a data interaction method for a Beacon device according to the present invention.

Detailed ways

The detailed features and advantages of the present invention are described in detail below in the specific embodiment, and the content is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the description, claims and drawings disclosed in this specification. , those skilled in the art can easily understand the related objects and advantages of the present invention.

The invention provides a Beacon device and a data interaction method based on low-power bluetooth technology, which can realize the information data broadcast of the Beacon device standard only by using the broadcast mode in the BLE technical specification, and simultaneously support the data broadcast with the bluetooth master device. It can interact to configure and update the data of the device, and its implementation cost is far lower than the current existing solutions.

FIG. 1 is a schematic structural diagram of a beacon device according to an embodiment of the present invention. As shown in FIG. 1 , the beacon device includes a micro-control unit module (MCU module) 101, a storage module 102, a parameter configuration module (BLE parameter configuration module) 103 based on Bluetooth low energy technology, and a Bluetooth low energy technology-based parameter configuration module. A broadcast module (BLE broadcast module) 104 , an optional security management module 105 and an optional firmware upgrade module 106 . Among them, the MCU module 101 and the storage module 102 are similar in function to the corresponding modules in the existing Beacon device, and are used to meet the basic requirements for realizing the Beacon application, as well as the analysis and processing of BLE-related data. The BLE parameter configuration module 103 and the BLE broadcast module 104 are implemented based on BLE technology, meet the BLE standard specification and belong to a subset thereof, and are compatible with all Bluetooth master devices that comply with the BLE specification. The security management module 105 and the firmware upgrade module 106 are optional modules according to the security encryption requirements and firmware upgrade requirements of the application. The main difference between the Beacon device of the present invention and the solution implemented by the current prior art lies in the BLE parameter configuration module 103 and the BLE broadcast module 104 implemented based on the BLE technology.

Figure 2 is a schematic diagram of the complete BLE technology implementation structure in the Bluetooth 4.0 standard specification. At present, the implementation solutions of the existing Beacon devices all adopt a complete BLE implementation solution, so as to use the BLE connection mode for data communication to support data interaction. As shown in Figure 2, most of the modules in the Bluetooth BLE Host part are used for data communication in the BLE connection mode, and the solution of the present invention does not need to use the BLE connection mode and the data communication function in this mode, so in the design The implementation can be greatly simplified.

FIG. 3 is a schematic structural diagram of BLE technology implementation in a Beacon device according to an embodiment of the present invention. As shown in the figure, the Bluetooth host part (BLE Host) removes L2CAP (Logical Link Control and Adaptation Protocol Module), SM (Security Manager Module), GATT (General Attribute Configuration Module), and ATT (Attribute Configuration Module). Item module, and simplifies the GAP module (General Access Configuration Module), just implement the support for the broadcast mode. The implementation structure of the BLE parameter configuration module 103 in FIG. 1 corresponds to the Bluetooth BLE Host part in FIG. 3; and the implementation structure of the BLE broadcast module 104 corresponds to the Bluetooth controller part (BLE controller) in FIG. 3, where the BLE The Link Layer state machine part of the controller will be detailed in Figure 5.

FIG. 4 is a schematic diagram of a state machine in a link layer (Link Layer) module in the Bluetooth Low Energy BLE standard specification. As shown in Figure 4, when the Bluetooth BLE Conroller is fully implemented, the Link Layer module has a total of five state machines, namely Standby (standby), Advertising (broadcast), Scanning (scanning), Initiating (starting) and Connection. (connect). For Beacon applications, in addition to the Standby state that must be supported due to low power consumption requirements and the Advertising state with broadcast function must be supported, during hardware design, the specific implementation of software and hardware can be simplified accordingly. In addition, the implementation scheme of the Beacon device of the present invention does not need to use the BLE connection mode, so the implementation of the Link Layer module in the Bluetooth BLE Controller is also simplified accordingly.

FIG. 5 is a schematic diagram of the Link Layer state machine of the Bluetooth BLE broadcast module 104 in the Beacon device according to an embodiment of the present invention. As shown in FIG. 5 , in one embodiment, it is only necessary to implement two state machines, Standby (standby) and Advertising (broadcast).

Since the implementation scheme of the Beacon device provided by the present invention is completely based on the BLE broadcast mode, including data interaction is also realized through the broadcast mode, so another Beacon data interaction device based on BLE technology is required to realize data interaction with the Beacon device. Therefore, the present invention provides a Beacon data interaction device based on BLE technology.

FIG. 6 is a schematic structural diagram of a Beacon (beacon) data interaction apparatus according to an embodiment of the present invention. As shown in Figure 6, the Beacon data interaction device includes an MCU module 601, a storage module 602, a human-computer interaction module 603, a BLE scanning module 604, an optional security management module 605, and an optional firmware upgrade module 606. Among them, the MCU module 601 and the storage module 602 belong to the basic modules of the embedded system and are used to realize the basic functions of the device; the human-computer interaction module 603 is used for operations such as human-computer dialogue, including data input, command control, and even display functions, etc. ; BLE scanning module 604 is based on the implementation of BLE technology, meets BLE standard specifications, and supports BLE scanning mode; security management module 605 and firmware upgrade module 606 are optional according to the security encryption requirements and firmware upgrade requirements of the application.

The Beacon data interaction device and the aforementioned Beacon device of the present invention perform data interaction through broadcast mode. Most Bluetooth master devices that support BLE technology, such as widely used smart terminals such as mobile phones and tablet computers, cannot be directly supported. Therefore, third-party personnel basically The connection and data modification of the Beacon device cannot be realized by developing a software APP. However, the implementation solution of the Beacon device in the prior art is based on the BLE connection mode for data interaction, and the BLE specification is mandatory for connection requests, so third-party personnel may develop software APPs directly to the Beacon The data modification of the device will cause security risks, which is obviously not what the manufacturer does not want to see. In contrast, the solution provided by the present invention has better security and lower implementation cost. In addition, using the data interaction method of the present invention, when performing data interaction with the Beacon device, there is no need to switch to the connection mode, so there is no need to interrupt the current normal broadcast working state, and seamless data configuration and update can be performed in the broadcast mode. , which has better user experience than the prior art.

The data interaction method of the Beacon device proposed by the present invention will be described in further detail below. Those skilled in the art should understand that in the BLE standard specification, data bidirectional transmission is not performed in the broadcast mode. The data interaction method provided by the present invention enables the data interaction of the Beacon device to be performed in the BLE broadcast mode, which not only simplifies the complexity of the software and hardware design of the Beacon device, reduces the power consumption of the BLE chip, but also improves data security. Therefore, it can be said that the present invention not only overcomes technical prejudice and technical obstacles, but also obtains unexpected beneficial technical effects.

The key technology of the data interaction method provided by the present invention is to use the SCAN_REQ scan packet in the BLE broadcast mode to transmit data. FIG. 7 is a schematic diagram of the format of Payload data of the standard SCAN_REQ scan request packet of BLE in the Bluetooth 4.0 standard specification. As shown in Figure 7, the Payload data of the SCAN_REQ scan packet contains two parts, one part is the address ScanA of the scanning device, and the other part is the address AdvA of the broadcasting device, both of which are 6 bytes (48bit) in length. For the scanning device itself, the former can be modified, while the latter corresponds to the target broadcast device to be sent and cannot be modified. Therefore, a specific BLE scanning device (Beacon data exchange device) can package the data to be sent as 48-bit device address data, and send it to the BLE broadcast device (Beacon device) through the SCAN_REQ scanning packet, thereby realizing data transmission. There are two types of device addresses in the BLE specification: public addresses and random addresses. It is recommended to choose a random address for implementation. As for the BLE broadcast device (Beacon device), if necessary, the SCAN_RSP scan response packet can be used to send data to the BLE scan device (Beacon data exchange device). It is defined in the BLE specification that SCAN_RSP can add manufacturer-defined data.

During the specific implementation, considering the security and robustness of data interaction between the Beacon device and the Beacon data interaction device, the two devices can define a set of communication protocols and adopt the encryption method agreed by both parties.

FIG. 8 is a flowchart of an embodiment of a data interaction method for a Beacon device according to the present invention. As shown in the figure, this embodiment is a method for updating the broadcast data of the Beacon device, including the steps:

Step 801: The Beacon device is powered on to enter the broadcast mode, sends an ADV_IND broadcast packet, and monitors the SCAN_REQ scan request packet;

Step 802: The Beacon data interaction device monitors the ADV_IND broadcast packet of the Beacon device, and determines that the Beacon device has started running;

Step 803: The Beacon data exchange device generates 32-bit data through a predefined encryption scheme for the two 16-bit Beacon broadcast data that need to be updated;

Step 804: The Beacon data exchange device adds the above-mentioned 32bit encrypted data to the 16bit representation data type and the specific identification used for verification, and generates 48bit random type device address data;

Step 805: The Beacon data exchange device generates a standard SCAN_REQ scan request packet from the above-mentioned device address data, and sends it to the Beacon device;

Step 806: After receiving the SCAN_REQ scan request packet sent by the Beacon data exchange device, the Beacon device takes out its device address, and parses out the 32bit encrypted data therein;

Step 807: the Beacon device uses a predefined decryption scheme to decrypt the 32bit encrypted data to obtain two 16bit broadcast data to be updated;

Step 808: the Beacon device updates the above-mentioned two 16-bit data into the ADV_IND broadcast packet, and broadcasts a new broadcast packet when the next broadcast event starts;

Step 809: The Beacon device generates the special flag data indicating that the update is completed as a SCAN_RSP scan response packet, and then sends it to the Beacon data exchange device;

Step 810: So far, the data interaction process between the Beacon device and the Beacon data interaction device is completed.

FIG. 9 is a flow chart of another embodiment of a data interaction method for a Beacon device according to the present invention. As shown in the figure, this embodiment is a method for updating the firmware of a Beacon device, including the steps:

Step 901: The Beacon device is powered on to enter the broadcast mode, sends an ADV_IND broadcast packet, and monitors the SCAN_REQ scan request packet;

Step 902: The Beacon data interaction device monitors the ADV_IND broadcast packet of the Beacon device, and determines that the Beacon device has started to run;

Step 903: Since the data volume of the firmware is large, it is necessary to change the broadcast interval to improve the efficiency of data transmission. The Beacon data exchange device generates 32bit data through a predefined encryption scheme for the 16bit broadcast interval parameter that needs to be updated;

Step 904: the Beacon data exchange device adds the above-mentioned 32bit encrypted data to the 16bit representation data type and the specific identification used for verification, and generates 48bit random type device address data;

Step 905: The Beacon data exchange device generates a standard SCAN_REQ scan request packet from the above-mentioned device address data, and sends it to the Beacon device;

Step 906: After receiving the SCAN_REQ scan request packet sent by the Beacon data exchange device, the Beacon device takes out its device address, and parses out the 32bit encrypted data therein;

Step 907: the Beacon device uses a predefined decryption scheme to decrypt the 32-bit encrypted data, and obtains 16-bit broadcast interval parameters to be updated;

Step 908: The Beacon device modifies the BLE broadcast interval according to the above-mentioned new broadcast interval parameter, and takes effect in the next broadcast event;

Step 909: the Beacon device generates the special flag data indicating that the update is completed as a SCAN_RSP scan response packet, and then sends it to the Beacon data exchange device;

Step 910: The Beacon data interaction device divides the new firmware data that needs to be updated into multiple pieces of data according to 32 bits as the basic unit;

Step 911: After the Beacon data exchange device encrypts each data in turn, adds 16bit identification data to generate 48bit device address data, and then sends it to the Beacon device by generating a SCAN_REQ request packet;

Step 912: After receiving the SCAN_REQ scan request packet, the Beacon device sequentially parses and decrypts to obtain each data and saves it, and replies to the corresponding SCAN_RSP scan response packet;

Step 913: After the Beacon device receives all the data, the Beacon device merges the saved data to obtain the firmware file to be updated;

Step 914: The Beacon device enters the firmware update link to perform a corresponding firmware update operation, and the entire data interaction process is completed.

To sum up, the present invention provides a Beacon device and data interaction method based on low-power Bluetooth BLE technology, without adding additional communication interfaces and without sacrificing the data configuration function of the Beacon device, the BLE part of the device The implementation has been greatly simplified, and the cost is lower than the current existing solutions. In addition, by using the data interaction method of the present invention, the advantages of wireless data interaction are retained, and at the same time, it has better security, and compared with the current existing solution, no mode switching is required, and the data configuration of the Beacon device can be synchronized with the broadcast function. The actual experience is better.

The terms and expressions used herein are for description only, and the present invention should not be limited to these terms and expressions. The use of these terms and expressions is not intended to exclude any equivalents of those shown and described (or portions thereof), and it should be recognized that various modifications that may exist should also be included within the scope of the claims. Other modifications, changes and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.

Also, it should be pointed out that although the present invention has been described with reference to the current specific embodiments, those skilled in the art should realize that the above embodiments are only used to illustrate the present invention, without departing from the present invention. Various equivalent changes or substitutions can also be made under the spirit of the present invention. Therefore, as long as the changes and modifications to the above-mentioned embodiments are within the scope of the essential spirit of the present invention, they will fall within the scope of the claims of the present application.

Claims (9)

1. A data interaction method based on low-power bluetooth technology, wherein the method comprises: The beacon device sends broadcast packets in broadcast mode and monitors scan request packets; The beacon data interaction device monitors the broadcast packet sent by the beacon device, and determines that the beacon device has started to operate; The beacon data interaction device packages the data to be sent to the beacon device into a format that conforms to the device address data in the scan request packet in the Bluetooth low energy protocol broadcast mode, and generates the standard scan request packet ; After receiving the scan request packet sent by the beacon data exchange device, the beacon device extracts the data conforming to the format of the device address data and parses the data; Wherein, the data exchanged between the beacon device and the beacon data interaction device consists of one or more of the following: Broadcast data to be updated; firmware program data; Firmware update control instructions; Wherein, the beacon device and the beacon data interaction device perform data reception and transmission in broadcast mode, and do not need to perform data reception and transmission in connection mode. 2 . The data interaction method according to claim 1 , wherein the beacon device generates the data that needs to be replied to the beacon data interaction device as a scan response packet, and sends it to the beacon data interaction device. 3 . device. 3. The data interaction method according to claim 1 or 2, wherein the scan request packet, the broadcast packet, and the scan response packet conform to the Bluetooth Low Energy standard specification. 4 . The data interaction method according to claim 1 or 2 , wherein the data exchanged between the beacon device and the beacon data interaction device is processed by encryption and decryption. 5 . 5. The data interaction method according to claim 1, wherein when the data exchanged between the beacon device and the beacon data interaction device is firmware program data or firmware update control instructions, the beacon data The interactive device splits the firmware program data or the firmware update control instruction into a plurality of the scan request packets, and sends them to the beacon device, so as to implement firmware update of the beacon device. 6. A beacon device using the data interaction method according to claim 1, wherein the beacon device comprises: a micro-control unit module for controlling the main functions of the beacon device and analyzing and processing related data; a storage module, coupled with the micro-control unit module, for storing program codes, application data and other configuration information; A broadcast module based on low-power bluetooth technology is coupled to the micro-control unit module, the broadcast module implements the Bluetooth controller part of the low-power bluetooth standard specification, and the link layer in the broadcast module only implements standby and broadcast two state machines, the broadcast module supports at least the processing of broadcast packets, scan request packets and scan response packets in the Bluetooth low energy standard specification, wherein the broadcast packets and the scan response packets are the The broadcast packet and the scan response packet sent by the beacon device, and the scan request packet is the scan request packet received by the beacon device; A parameter configuration module based on low-power bluetooth technology is used to configure the control parameters and related parameters of the broadcast module. The parameter configuration module corresponds to the bluetooth host part in the low-power bluetooth standard specification, but the parameter configuration The module greatly simplifies the protocol stack of the Bluetooth host part. The parameter configuration module only implements and simplifies the general access configuration module in the Bluetooth low energy standard specification, and does not include the low energy Bluetooth standard specification. The general attribute configuration module, attribute configuration module, logical link control and adaptation protocol module, security manager module. 7. The beacon device of the data interaction method according to claim 6, wherein the beacon device further comprises: Security management module, used to encrypt and decrypt data in data interaction; The firmware upgrade module is used to upgrade the firmware of the beacon device. 8. A beacon data interaction device using the data interaction method according to claim 1, wherein the beacon data interaction device comprises: A micro-control unit module, used for main function control and data processing of the beacon data interaction device; a storage module, coupled to the micro-control unit module, for storing program codes, application data and other configuration information; a human-computer interaction module for performing human-computer interaction on the beacon data interaction device; A scanning module based on low-power bluetooth technology is used to implement the Bluetooth controller part of the low-power bluetooth standard specification, and the link layer in the scanning module implements at least the scan defined in the low-power bluetooth standard specification. In this state machine, the scan module supports at least the processing of broadcast packets, scan request packets and scan response packets in the Bluetooth low energy standard specification, wherein the scan request packet is the scan sent by the beacon data interaction device The request packet, the broadcast packet and the scan response packet are the broadcast packet and the scan response packet received by the beacon data interaction apparatus. 9. The beacon data interaction device of the data interaction method according to claim 8, wherein the beacon data interaction device further comprises: Security management module, used to encrypt and decrypt data in data interaction; A firmware upgrade module, configured to update the firmware of the beacon data interaction device.

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