CN111556478B

CN111556478B - Bluetooth device

Info

Publication number: CN111556478B
Application number: CN202010364137.0A
Authority: CN
Inventors: 苏钉; 李涛; 高永会; 徐宏
Original assignee: Hangzhou Tuya Information Technology Co Ltd
Current assignee: Hangzhou Tuya Information Technology Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2023-04-07
Anticipated expiration: 2040-04-30
Also published as: CN111556478A

Abstract

The embodiment of the application discloses a Bluetooth device, wherein a Bluetooth instruction set and a self-analysis instruction set are stored in a memory of the Bluetooth device; wherein the bluetooth instruction set comprises a plurality of bluetooth instructions, each of the bluetooth instructions comprising: a unique command ID and command type combination, each of said Bluetooth commands corresponding to a Bluetooth basic event; the set of self-resolving instructions includes a plurality of self-resolving instructions, each self-resolving instruction including: a unique instruction ID and combination of instruction types, instruction lengths and instruction parameters; the instruction length is used for expressing the length of the instruction parameter, the instruction parameter comprises a rule corresponding to the self-analysis instruction, and when the Bluetooth basic event or data communication based on service and characteristic values meets the corresponding rule, the next action is carried out according to the instruction parameter.

Description

Bluetooth device

Technical Field

The embodiment of the application relates to the field of Bluetooth communication, in particular to Bluetooth equipment.

Background

In recent years, with the rapid development of the internet of things technology at home and abroad, an SoC development scheme with low energy consumption and low cost is popular in the field of internet of things. Although the number of embedded devices based on the SoC scheme is huge, most functions are simpler. In order to follow up the rapid change of the internet of things market, the capability of easy development and rapid deployment of embedded devices is increasingly required. Among the numerous internet of things devices, bluetooth low energy devices account for a large percentage.

At present, the development of the low-power-consumption Bluetooth is not mature, and the function is limited. Therefore, a simpler and easy-to-develop bluetooth low energy device is needed, which facilitates the development personnel to perform programming and adds more extended functions to the bluetooth device.

Disclosure of Invention

In view of the above problems, the present application provides a bluetooth device, where a memory of the bluetooth device stores a bluetooth instruction set and a self-parsing instruction set;

wherein the bluetooth instruction set comprises a plurality of bluetooth instructions, each bluetooth instruction comprising: a unique command ID and command type combination, each Bluetooth command corresponding to a Bluetooth basic event;

the set of self-resolving instructions includes a plurality of self-resolving instructions, each self-resolving instruction including: a unique instruction ID and combination of instruction types, instruction lengths and instruction parameters; the instruction length is used for expressing the length of the instruction parameter, the instruction parameter comprises a rule corresponding to the self-analysis instruction, and when the Bluetooth basic event or data communication based on service and characteristic values meets the corresponding rule, the next action is carried out according to the instruction parameter.

Preferably, the bluetooth basic event includes: the method comprises a power-on initialization completion event, a Bluetooth broadcast starting event, a Bluetooth device discovery event, a Bluetooth scanning ending event, a Bluetooth connection establishment event, a Bluetooth connection disconnection event, a Bluetooth pairing request event and a Bluetooth connection parameter updating event.

Preferably, the memory is a flash memory.

Preferably, the bluetooth instruction set and the self-parsing instruction set are stored on a memory of the bluetooth device according to a 16-ary system.

Preferably, each of the instruction IDs occupies a length of 1 byte, each of the instruction types occupies a length of 1 byte, the instruction length occupies a length of 2 bytes, and the instruction parameters occupy a length of bytes equal to a value represented by the instruction length.

Preferably, the self-analysis instruction corresponds to a plurality of rules; the multiple rules are connected by using logical operation signs.

Preferably, the logical operator comprises an and operator and or operator.

Preferably, each rule corresponding to the self-parsing instruction includes: screening rule types, comparison modes, comparison quantity lengths, offsets and comparison quantities; the screening rule type is used for representing a reading form of the compared quantity, and the comparison mode comprises a mode of being larger than, equal to and smaller than; the comparison quantity length is used for representing the length of the comparison quantity; the amount of the comparison is used to compare with the amount being compared.

Preferably, the screening rule types include a reverse order type and a sequential order type.

Preferably, the screening rule type occupies 1 byte; the contrast mode occupies 1 byte; the contrast length occupies 1 byte; the offset occupies 1 byte; the number of bytes occupied by the comparison quantity is equal to the value expressed by the length of the comparison quantity.

According to the technical scheme, the technical scheme of the invention has the following advantages: the invention provides a Bluetooth device, which stores a Bluetooth instruction set and a self-analysis instruction set with unified specifications, so that developers can develop the Bluetooth device according to the specifications, and great convenience is brought to the developers for program development and function expansion of the Bluetooth device.

Drawings

Fig. 1 is a schematic structural diagram of a bluetooth device provided in the present application.

Detailed Description

The embodiment of the application provides a Bluetooth device, wherein a Bluetooth instruction set and a self-analysis instruction set are stored in a memory of the Bluetooth device, and when the Bluetooth device runs, corresponding functions can be realized according to the Bluetooth instruction set and the analysis instruction set. The developer can write programs quickly according to the rules of the instruction sets to develop the Bluetooth device.

Referring to fig. 1, the bluetooth device 10 includes at least a processor 101 and a memory 102, and the memory 102 stores a bluetooth instruction set and a bluetooth parsing instruction set provided in the present application. Specific examples of the bluetooth device 10 may include CC2540, CC2541, CC2640R2F of texas instruments, nRF52810, nRF52811, nRF52832, nRF52833, nRF52840, DA14580, and DA14682 of Dialog; bk3431q, bk3432, bk3435 from BEKEN; a series of bluetooth modules supporting a low-power-consumption bluetooth protocol, such as TLSR825x series of telsk, and MXD2660 series of MAXSCEND series of TLSR826x series, store thereon the bluetooth instruction set and the self-parsing instruction set provided by the present application; or the electronic device may be a mobile phone, a notebook computer, a wireless headset or the like, which is loaded with these bluetooth modules and stores the bluetooth instruction set and the parsing instruction set of the present application.

In the bluetooth device 10, there is a series of bluetooth basic events, and bluetooth low energy also supports data communication based on service and feature values, and different data channels can be distinguished by UUIDs of different service/feature values. Through designing simple judgement and comparison instruction, just can resolve the bluetooth data of different data channels.

Whether various basic events of the bluetooth or the analysis result of different data channels of the bluetooth, we can regard this as a trigger, and a certain trigger itself can also be used as an actuator of other triggers. With the trigger and the actuator, the self-analysis programming capability can be realized only by designing a set of mutually-linked rules.

In one embodiment, the bluetooth device 10 has a bluetooth instruction set and a self-interpreting instruction set stored in a memory in which the bluetooth device 10 is stored. The bluetooth device 10 may have a plurality of bluetooth instruction sets and a self-resolving instruction set stored on a memory. Wherein, each Bluetooth instruction set comprises a corresponding instruction type and an instruction ID of the Bluetooth instruction set, and is used for distinguishing each Bluetooth instruction set. Based on the instruction ID and the instruction type, a unique corresponding bluetooth instruction set or self-interpreting instruction set can be found. The Bluetooth instruction set corresponds to a Bluetooth basic event, when a certain Bluetooth basic event occurs, the instruction type and the instruction ID corresponding to the Bluetooth basic event are inquired, and the instruction set corresponding to the Bluetooth basic event is considered to be triggered. If the bluetooth basic event has no corresponding instruction set or no other command in the corresponding instruction set, no action is taken. Accordingly, when the bluetooth instruction set is executed, the bluetooth device 10 performs an operation corresponding to the bluetooth instruction set. The self-interpreting instruction set of the bluetooth device 10 includes a plurality of self-interpreting instructions, each of which includes: a unique instruction ID and instruction type combination, instruction length and instruction parameters. Wherein the combination of command type and command ID can find a unique corresponding bluetooth command set or self-resolving command set. The instruction length is used for representing the length of the instruction parameter, and the instruction parameter comprises a rule corresponding to the self-analysis instruction. When the bluetooth device 10 reads a program in the self-analysis instruction set, the instruction set is searched according to the instruction type and the instruction ID, and whether the instruction set of the current bluetooth device 10 meets the corresponding rule or not is checked, and the corresponding comparison result is output. The result of this comparison may be used as a trigger to control the bluetooth device 10 to perform the next action.

Specifically, a 16-ary format may be used, with each bluetooth basic event being assigned an instruction type and number.

The format should be as shown in the following table

Type of instruction	Instruction id	Instruction length (len)	Instruction parameters
				xx	xx	xxxx	xx…xx
1 byte	1 byte	2 bytes	len byte

As shown in the above table, after numbering the common bluetooth basic events, the instruction types and instruction IDs of the bluetooth basic events may be as shown in the following table:

the instruction types and instruction IDs corresponding to the instruction functions can be adjusted according to the needs of developers.

Where 0x represents the subsequent value as a 16-ary representation. Compared with the method of expressing the instructions by characters, the method of expressing the instructions by the 16 system can enable each instruction set to be simpler and occupy fewer bytes, and meanwhile, the 16 system can also take the programming habit of developers into consideration. For example, an instruction set stored in the memory is 0x03 00 06 FC 11 33 44, and this instruction set indicates that a connection is initiated to a device having a bluetooth Mac address of FC 11 22 33 44.

The specific storage form of the self-resolving instruction set can be seen in the following table, with 4 types.

Wherein the data within the "[ ]" is optional and may not be filled in.

Wherein, the corresponding meanings of each character are as follows:

idx corresponds to the number of each parsing instruction set; when idx fetches FF, any instruction set may be considered not to be executed.

cmd represents an automatically executed instruction in the format [ cmdType cmdId cmdLen cmdParam ]

cmdType corresponds to the type of instruction and stores unsigned integers in the form of 1 byte.

cmdId corresponds to instruction id and stores unsigned integers in the form of 1 byte.

cmdLen corresponds to the instruction length and stores unsigned integers in the form of 1 byte.

cmdParam corresponds to an instruction parameter whose data length is less than 256 bytes since the maximum value of the instruction length is 256.

A rule represents an instruction set rule with the structure [ [ idx rule ] [ logic rule ] \ 8230; ] \\8230; ]. A rule is composed of a plurality of single-term rules, i.e., comprises a plurality of rules, and each single-term rule is connected by a logical operator. Where each rule contains a data comparison, logic represents the logical operators AND and OR, occupying one byte, used to join multiple rules. A specific storage form may be that an and operation is represented by 0x26 ("&"); the or operation is represented by 0x7C ("|"). I.e., the rule denoted by rules, is satisfied, then the instruction set numbered idx is executed. Obviously, the developer can also add more other logic operators to design the instruction set by himself according to the needs.

Further, the structure of rule may be [ type op bytes offset token ].

The data structure of rule is explained below. type is stored by a 1-byte unsigned integer, representing a screening rule type, 00-representing token as a sequential structure type, and 80-representing token as a reverse structure type. The developer can design the screening rule category according to the requirement.

op represents 1 byte character (hexadecimal), represents the comparison mode, and takes the following values:

0x3C: '<', the data structure is smaller than token;

0x3D: '=' the data structure equals token;

0x3E: '>', the data structure is larger than token.

Bytes corresponds to a 1-byte unsigned integer representing the number of Bytes of token.

offset corresponds to a 1-byte unsigned integer indicating the offset at which alignment begins in the specified type of data, and obviously, the upper limit of the offset is 256.

token represents the content participating in the comparison and serves as the comparison quantity. Obviously, the length of token corresponds to the number of bytes.

The trigger condition for the self-resolving instruction set is specified by the best-effort rule, where idx may take the value FF. The self-parsing instruction set triggers the format fixing:

[idx rule]＝[idx type op bytes offset token]＝[idx 00 3D 01 00 evt]。

evt is token in the self-parsing instruction set, and is a 1-byte unsigned integer, which represents a trigger event value. The specific values of each event are as follows:

evt	events
		00	Device discovery
01	Connection success
		02	notify
03	read response
		04	External interrupts

Wherein, the data structure corresponding to notify is:

the data structure of the external terminal is as follows:

in actual operation, a developer may design other event data structures for the bluetooth device 10 to expand the functions of the bluetooth device 10.

When programmed according to the above data structure, one example of the program is:

F0 01 000F 00 02 02 00 00 03 01 0006 00 00 00 00 00 00F0 03 00 00 00 00 3D 01 00 00。

this example shows that the device is scanned, then scanning is stopped, and the device with the MAC address "00 00 00 00 00 00" is immediately connected.

It can be understood that the instruction ID, the instruction type, and the event value corresponding to the instruction set may be adjusted by a developer according to actual requirements without creative efforts.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and the like.

Claims

1. A Bluetooth device is characterized in that a Bluetooth instruction set and a self-analysis instruction set are stored on a memory of the Bluetooth device;

wherein the bluetooth instruction set comprises a plurality of bluetooth instructions, each of the bluetooth instructions comprising: a unique command ID and command type combination, each Bluetooth command corresponding to a Bluetooth basic event;

the set of self-resolving instructions includes a plurality of self-resolving instructions, each of the self-resolving instructions including: a unique instruction ID and instruction type combination, instruction length and instruction parameters; the instruction length is used for expressing the length of the instruction parameter, the instruction parameter comprises a rule corresponding to the self-analysis instruction, and when the Bluetooth basic event or data communication based on service and characteristic values meets the corresponding rule, the next action is carried out according to the instruction parameter.

2. The bluetooth device of claim 1, wherein the bluetooth basic event comprises: the method comprises a power-on initialization completion event, a Bluetooth broadcast starting event, a Bluetooth device discovery event, a Bluetooth scanning ending event, a Bluetooth connection establishment event, a Bluetooth connection disconnection event, a Bluetooth pairing request event and a Bluetooth connection parameter updating event.

3. The bluetooth device of claim 1, wherein the memory is a flash memory.

4. The bluetooth device of claim 1, wherein the bluetooth instruction set and the self-parsing instruction set are stored on a memory of the bluetooth device in 16-ary.

5. The bluetooth device according to claim 4, wherein each of the command IDs occupies 1 byte length, each of the command types occupies 1 byte length, the command length occupies 2 byte lengths, and the command parameter occupies a byte length equal to a value represented by the command length.

6. The bluetooth device according to claim 5, wherein the self-parsing instruction corresponds to a plurality of rules; the multiple rules are connected by using logical operation signs.

7. The bluetooth device of claim 6, wherein the logical operator comprises an AND operator and an OR operator.

8. The bluetooth device according to claim 7, wherein each rule corresponding to the self-parsing command comprises: screening rule types, comparison modes, comparison quantity lengths, offset and comparison quantities; the screening rule type is used for representing a reading form of the compared quantity, and the comparison mode comprises a mode of being larger than, equal to and smaller than; the comparison quantity length is used for representing the length of the comparison quantity; the amount of the comparison is used to compare with the amount being compared.

9. The bluetooth device according to claim 8, wherein the filtering rule types include a reverse order type and a sequential order type.

10. The bluetooth device according to claim 8, wherein the filtering rule type occupies 1 byte; the contrast mode occupies 1 byte; the contrast length occupies 1 byte; the offset occupies 1 byte; the number of bytes occupied by the comparison quantity is equal to the value expressed by the length of the comparison quantity.