TWI384809B - Polling method compliant to bluetooth protocol for increasing transfer efficiency and system thereof - Google Patents

Description

Polling method and system compatible with Bluetooth protocol and with improved transmission efficiency

The present invention relates to a polling method, and more particularly to a polling method that is compatible with a Bluetooth protocol and has improved transmission efficiency.

In the Bluetooth protocol, the master can poll the slave when the master needs to continuously request data from the slave. For example, the master device can be a game console, and the slave device can be a control handle for the corresponding game console. When a multiplayer game is played, each control handle needs to continuously and largely transmit the control signals transmitted by the user by controlling the handlebars so that the game console can control the role played by the user in the game. At this time, the game host (master device) can poll each control handle (slave device) to obtain a control signal output by the control handle.

Please refer to Figure 1. Figure 1 is a schematic diagram illustrating a prior art polling method. In Fig. 1, the time slots TS ₀ to TS _{11 are} equal to the period T (e.g., 625 microseconds). In the upper half of Fig. 1, the master device MA polls the slave devices SL ₁ and SL ₂ . The master device MA and the slave devices SL ₁ and SL ₂ belong to the same Bluetooth piconet, and the master device MA assigns the addresses ADDR ₁ and ADDR ₂ to the slave devices SL ₁ and SL _{2 , respectively} . The master device issues a polling packet PP ₁ prior to the time slot TS ₀ of the polling. The polling packet PP ₁ has an address ADDR ₁ therein. Thus, when the apparatus is received from the polling packet PP ₁ SL _1, the SL ₁ from the apparatus ₁ may be, that the master device MA to claim ₁ having address ADDR PP packet polling response from the device ₁ according to SL. At this time, the slave SL ₁ sends a response packet RP ₁ to the response slot TS ₁ adjacent to the polling slot TS ₀ to transmit the data to the master MA. Then the master device MA to the polling time slot (time slot) in TS _2, Poll a packet having the address ADDR ₂ PP _2. Similarly, the slave SL ₂ can have an address ADDR _{2 in} accordance with the polling packet PP ₂ to know that the master MA requests a response from the device SL ₂ . Therefore, the slave SL ₂ sends a response packet RP ₂ to the response slot TS ₃ adjacent to the polling slot TS ₂ to transmit the data to the master MA. From this, it can be seen that the master device MA can poll the slave devices SL ₁ and SL ₂ once every four time slots. In the lower half of Fig. 1, the master device MA polls the slave devices SL ₂ , SL ₂ and SL ₃ . The master device MA and the slave devices SL ₁ , SL ₂ and SL ₃ belong to the same Bluetooth micro-network (piconet), and the master device MA assigns the addresses ADDR ₁ , ADDR ₂ and ADDR ₃ to the slave devices SL ₁ , SL respectively. ₂ with SL ₃ . The method in which the master device MA polls the slave devices SL ₁ , SL ₂ and SL ₃ is similar to the method in which the master device MA polls the slave devices SL ₁ and SL _{2 in} the upper half of the first drawing, and therefore will not be described again. As shown in the lower half of Fig. 1, the master device MA can poll the slave devices SL ₁ , SL ₂ , SL ₃ once every six time slots.

As can be seen from the description of FIG. 1, whenever the master device is to poll M slave devices, the master device needs to send M polling packets in M polling time slots respectively, and the master device polls M slave devices once. The time required is (2 x M) time slots, where M represents a positive integer. Therefore, when the slave device is increased (M is increased), the polling packet sent by the master device is increased, so that the transmission efficiency is lowered, causing inconvenience to the user.

The present invention provides a polling method that is compatible with the Bluetooth protocol and has improved transmission efficiency. The method includes a master setting a predetermined address as a predetermined agreement, the master querying whether the plurality of slaves support the preset protocol, to determine that the plurality of slaves support the predetermined agreement Transmitting, by the master device, a polling packet having one of the first preset addresses to a slave device supporting the predetermined agreement in the plurality of slave devices, and supporting the predetermined agreement from the plurality of slave devices The device should then poll the packet to the master device. The default agreement is that the master device can issue a single polling packet to enable the slave device supporting the preset protocol to respond in sequence. The master device and the plurality of slave devices belong to a Bluetooth piconet.

The present invention further provides a polling system that is compatible with the Bluetooth protocol and has improved transmission efficiency. The polling system includes a master device and M slave devices. The master device is configured to issue a first polling packet. The primary device issues the first polling packet in a first polling time slot. The M slave devices are configured to send M first response packets in the M first response time slots according to the M response sequences of the first polling packet and the M slave devices. The M first response time slots are adjacent to each other, and the first first response time slot in the first response time slot of the M is adjacent to the first polling time slot. The Kth slave device of the M slave devices is in the Kth response order according to one of the M response sequences, and is sent in the Kth first response time slot of the M first response time slots. The K first response packet is one of the M first response packets. The master device and the M slave devices belong to a Bluetooth micro network. K, M represents a positive integer, and 2 ≦ K ≦ M.

In view of this, the present invention provides a polling method for causing a host device to set a predetermined address as a predetermined protocol. And the default agreement is that the master device can issue a polling packet having the predetermined address to enable the slave device supporting the preset protocol to respond in sequence.

Since the slave device polls the slave device when the master device polls the slave device using the default protocol of the present invention, only the slave device supporting the predetermined agreement will respond, so the master device needs to first ask whether each slave device supports the preset protocol, so as to A slave device supporting the predetermined agreement is determined. Hereinafter, a method in which the master device asks the slave device whether or not the preset protocol is supported will be described first.

Please refer to Figure 2. Figure 2 is a diagram for explaining whether the master device MA inquires whether the slave device supports the preset protocol of the present invention in the inquiry support phase of the present invention. In the Bluetooth micro network NET to which the master device MA belongs, there are slave devices SL ₁ , SL ₂ , SL ₃ and SL ₄ , and the slave devices SL ₁ , SL ₂ , SL ₃ and SL ₄ respectively have an address ADDR ₁ , ADDR ₂ , ADDR ₃ , ADDR ₄ . The time slots TS ₀ ~ TS ₇ are all equal to one Bluetooth time slot (eg 625 microseconds). The master device MA issues an inquiry command ASP ₁ having the address ADDR ₁ in the time slot TS ₀ to inquire whether the slave device SL ₁ corresponding to the address ADDR ₁ supports the default protocol. The slave SL ₁ will issue a reply support packet RSP _{1 in} the time slot TS _{1 of the} adjacent time slot TS ₀ in response to the inquiry command ASP _{1 of the} master device. When the slave device SL ₁ supports the preset protocol, the reply support packet RSP ₁ responded to by the slave device SL ₁ is equal to the predetermined profile DA _PRE ; otherwise, when the slave device SL ₁ does not support the preset protocol, the slave device SL ₁ The response reply packet RSP ₁ will not equal the scheduled data DA _PRE . Therefore, the master device MA can determine whether the slave SL ₁ supports the default protocol based on whether the response packet RSP ₁ responded to the slave SL ₁ is equal to the predetermined profile DA _PRE . Similarly, the master device MA issues an inquiry command ASP ₂ having the address ADDR ₂ in the time slot TS ₂ to inquire whether the slave SL ₂ corresponding to the address ADDR ₂ supports the default protocol. The slave SL ₂ will issue a reply support packet RSP _{2 in} the time slot TS _{3 of the} adjacent time slot TS ₂ in response to the inquiry command ASP _{2 of the} master device. ₂ may be the master device MA is equal to the predetermined data DA _PRE The RSP replies from the support means to respond to packet ₂ SL, SL ₂ from the apparatus to determine if it supports a predetermined protocol. The method in which the master device MA inquires whether the slave devices SL ₃ and SL ₄ support the preset protocol is similar to the master device MA inquiring whether the slave devices SL ₁ and SL ₂ support the preset protocol, and therefore will not be described again. It can be seen that the master device MA can issue an inquiry command ASP to each slave device, and determine whether the slave device supporting the preset protocol is determined according to whether the response packet RSP responded to each slave device is equal to the predetermined data DA _PRE . For example, the reply support packets RSP ₁ to RSP ₃ responded to from the devices SL ₁ to SL ₃ are equal to the predetermined data DA _PRE , and the reply support packet RSP ₄ responded from the device SL ₄ is not equal to the predetermined data DA _PRE . Therefore, the master device MA can determine that the slave devices SL ₁ to SL ₃ are slave devices supporting the default protocol of the present invention, and the slave device SL ₄ is a slave device that does not support the preset protocol of the present invention.

In addition, when the master device MA determines that the slave device supporting the preset protocol is supported, the master device MA assigns a response sequence corresponding to the default protocol to the slave device, so that the master device issues the polling packet of the preset protocol of the present invention. The slave devices supporting the preset protocol can respond in sequence according to the response sequence assigned by the master device MA. The operation of the master device by polling the polling packets of the preset protocol of the present invention will be described below.

Please refer to Figure 3. Figure 3 is a schematic diagram showing the format of a polling packet SPP according to the default protocol of the present invention. The polling packet SPP includes an access code AC and a header HD. The access code AC is used to indicate the Bluetooth micro network NET to which the polling packet SPP belongs, so that the slave device belonging to the Bluetooth micro network NET can receive the polling packet SPP. The header HD includes an address information AD, a busy information BY, an ACK information AK, and a debug information ER. Let the master device MA set the address ADDR _{PRE to} be the predetermined address. That is to say, the master device MA will reserve the address ADDR _PRE to the default protocol without assigning the address ADDR _PRE to any of the slave devices. In this way, in the address information AD of the polling packet SPP, the predetermined address ADDR _PRE is stored, so that the slave device supporting the preset protocol can determine that the polling packet SPP is a packet of the preset agreement of the present invention, and In response. The busy information BY is used to indicate whether the slave device can transmit data. The handshake information AK is used to indicate whether the response packet transmitted from the device is successfully transmitted. The debug information ER is used to provide the slave device with an error in detecting the polling packet SPP.

Please refer to Figure 4. Figure 4 is a diagram illustrating the polling of the slave devices SL ₁ and SL ₂ by the master device MA using the polling packet SPP of the preset protocol of the present invention. In Fig. 4, the time slots TS ₀ to TS ₇ are all equal to the period T (e.g., 625 microseconds). The master device MA and the slave devices SL ₁ and SL ₂ belong to the same Bluetooth micro network NET. It is assumed that the master device MA assigns the addresses ADDR ₁ and ADDR ₂ to the slave devices SL ₁ and SL _{2 , respectively} . The address ADDR ₁ and ADDR _{2 are} different from the predetermined address ADDR _PRE . The master device MA has judged that the slave device SL ₁ and the slave device SL ₂ support the preset protocol of the present invention by the method described in FIG. ₂ , and the master device MA assigns the response sequences ORD ₁ and ORD ₂ to the slave devices SL ₁ and SL, respectively. ₂ . The master device issues a polling packet SPP as shown in FIG. 3 prior to the time slot TS ₀ of the polling. Since the slave devices SL ₁ and SL ₂ support the preset protocol of the present invention, when the slave devices SL ₁ and SL ₂ receive the polling packet SPP, the slave devices SL ₁ and SL ₂ can have a predetermined address according to the polling packet SPP. ADDR _PRE , to know that the polling packet SPP is the polling packet of the default agreement of the present invention. SL ₁ and SL ₂ device will respond according to the sequential order in response to the master device allocated from ORD ₁ and ORD _2. For example, in response to _an order ORD equal to 1, ₂ respond ORD order equal to 2, SL ₁ from the slot TS apparatus ₁ emits _a response packet when the RP adjacent to the polling response slot TS _0, the device from SL ₂ The slot TS ₂ sends a response packet RP ₂ at a response time interval T (or a time slot) from the polling slot TS ₀ . In this way, the master device MA can make the slave devices SL ₁ and SL ₂ respond in sequence as long as a single polling packet SPP is issued. Notably, when the response packet sent RP SL ₂ in response to the device slot TS ₂ from _2, the method according to the present invention, the master does not device MA in response to the neighboring slot TS ₂ the time slot _{TS. 3} emitted wheel Inquire about the packet SPP. This is because in the Bluetooth protocol, it is stipulated that the master device needs to transmit data (issue packets) in even time slots. As shown in Fig. 4, the time slots TS ₀ , TS ₂ , TS ₄ ... are equal time slots, and the time slots TS ₁ , TS ₃ , TS ₅ ... are equal time slots. Therefore, according to the method of the present invention, the master device MA does not issue the polling packet SPP in the odd time slot TS ₃ , but only in the polling time slot TS separated from the response slot TS ₂ by a period T (one time slot). ₄ Issue a polling packet SPP to be compatible with the Bluetooth protocol. In addition, in the handshake information AK of the polling packet SPP sent by the slot TS ₄ during the polling of the master device MA, the response packet RP ₁ and the slave SL transmitted by the slave SL ₁ in the response slot TS ₁ are indicated. ₂ In response to the response, the response packet RP ₂ transmitted by the slot TS ₃ is successfully transmitted.

Please refer to Figure 5. Figure 5 is a diagram illustrating the polling of the slave devices SL ₁ , SL ₂ and SL ₃ by the master device MA using the polling packet SPP of the preset protocol of the present invention. The master device MA and the slave devices SL ₁ , SL ₂ and SL ₃ belong to the same Bluetooth micro network NET. It is assumed that the master device MA assigns the addresses ADDR ₁ , ADDR ₂ and ADDR ₃ to the slave devices SL ₁ , SL ₂ and SL _{3 , respectively} . The address ADDR ₁ , ADDR ₂ and ADDR _{3 are} different from the predetermined address ADDR _PRE . The master device MA has judged that the slave devices SL ₁ , SL ₂ and SL ₃ support the preset protocol of the present invention by the method described in FIG. ₂ , and the master device MA assigns the response sequences ORD ₁ , ORD ₂ and ORD _{3 respectively.} Devices SL ₁ , SL ₂ and SL ₃ . The master device issues a polling packet SPP as shown in FIG. 3 prior to the time slot TS ₀ of the polling. The slave devices SL ₁ , SL ₂ and SL ₃ respond in sequence according to the response sequence ORD ₁ , ORD ₂ and ORD ₃ assigned by the master device MA. For example, in response to _an order ORD equal to 1, ₂ respond ORD order equal to 2, ₃ ORD order response equal to 3, from ₁ slot TS ₁ apparatus SL emitted during response packet RP adjacent to the polling slot TS ₀ of the response _1; SL ₂ from the apparatus to the time slot TS ₀ of the polling period T separated by a slot TS ₂ response packet sent RP ₂ response (or a time slot) of; SL ₃ from the apparatus in the polling two spaced time slots TS ₀ The response time slot TS ₃ of the period T (or two time slots) sends a response packet RP ₃ . Thus, the master device MA can cause the slave devices SL ₁ , SL ₂ and SL ₃ to respond in sequence as long as a single polling packet SPP is issued. It is to be noted that, compared to FIG. 4, since the time slot TS ₄ is an even time slot, the master device MA issues a polling packet SPP adjacent to the time slot TS _{4 of the} response time slot TS ₃ . In addition, compared with the prior art, by the method of the present invention, the time required for the master device MA to poll the slave devices SL ₁ , SL ₂ , SL _{3 once} can be reduced to four time slots to improve transmission efficiency.

Please refer to Figure 6. Figure 6 is a diagram illustrating the polling of the slave devices SL ₁ -SL _M by the master device MA using the polling packet SPP of the preset protocol of the present invention. The master device MA and the slave devices SL ₁ to SL _M belong to the same Bluetooth micro network NET. It is assumed that the master device MA assigns the addresses ADDR ₁ to ADDR _M to the slave devices SL ₁ to SL _{M , respectively} . The address ADDR ₁ ~ADDR _{M is} different from the predetermined address ADDR _PRE . The master device MA has determined that the slave devices SL ₁ to SL _M support the preset protocol of the present invention by the method described in FIG. 2, and the master device MA assigns the response sequences ORD ₁ to ORD _M to the slave devices SL ₁ to SL _{M , respectively.} . The method in which the master device MA uses the polling packet SPP to poll the slave devices SL ₁ to SL _M is similar to the method illustrated in FIGS. 4 and 5, and therefore will not be described again. In the upper half of Fig. 6, set M to an even number. After polled by the master device MA packets SPP to the polling slot TS _0, the apparatus according to SL ₁ ~ SL _M responses ORD ₁ ~ ORD _M sequence in response to each slot TS ₁ ~ TS _M emitted response packet RP ₁ ~ RP _M . Since the time slot TS _(M+1) is an odd time slot, the master device MA does not issue a polling packet SPP in the time slot TS _(M+1) in accordance with the method of the present invention to be compatible with the Bluetooth protocol. Therefore, the time required for the master device MA to poll the slave devices SL ₁ to SL _M once is (M + 2) time slots. In the lower half of Fig. 6, set M to an odd number. After polled by the master device MA packets SPP to the polling slot TS _0, the apparatus according to SL ₁ ~ SL _M responses ORD ₁ ~ ORD _M sequence in response to each slot TS ₁ ~ TS _M emitted response packet RP ₁ ~ RP _M . Since the time slot TS _(M+1) is an even time slot, the master device MA can issue a polling packet SPP in the time slot TS _(M+1) according to the method of the present invention. Thus, the time required for the master device MA to poll the slave devices SL ₁ to SL _M once is (M+1) time slots.

In the prior art, the time required for the master to poll M slaves once is (2 x M) time slots. According to the method of the present invention, when M is an odd number, the time required for the master device MA to poll the slave devices SL ₁ to SL _M is (M+1) time slots; when M is even, the master device MA wheel The time required to query the slave devices SL ₁ to SL _M is (M + 2) time slots. From this, it can be seen that when M is greater than or equal to 3, the time required for the master device MA to poll the slave devices SL ₁ to SL _M can be reduced by the method of the present invention.

Please refer to Figure 7. Figure 7 is a diagram showing a polling method of the host device MA when the slave device in the Bluetooth micro network NET includes both the slave device supporting the default protocol of the present invention and the slave device not supporting the default protocol of the present invention. In Fig. 7, it is assumed that the master device MA assigns the addresses ADDR ₁ to ADDR ₄ to the slave devices SL ₁ to SL _{4 , respectively} . The address ADDR ₁ ~ADDR _{4 is} different from the predetermined address ADDR _PRE . The master device MA has judged from the method illustrated in Fig. 2 that the slave devices SL ₁ to SL ₃ support the preset protocol of the present invention, and the slave device SL ₄ does not support the preset protocol of the present invention. Therefore, the master device MA assigns the response sequences ORD ₁ to ORD ₃ to the slave devices SL ₁ to SL _{3 , respectively} . Similar to the method described in FIG. 5, the master device MA can issue a polling packet SPP in the polling slot TS ₀ to poll the slave devices SL ₁ -SL ₃ supporting the default protocol of the present invention. Thus, when the apparatus _{SL 1 ~ SL 3 1, ORD} 2 and _{ORD. 3} sequentially in response based on the response to the master device MA ORD sequence allocated from the slot TS ₁ ~ TS ₃ emitted response packet RP ₁ ~ RP _3. Since the time slot TS is even _four slot system, so the master device MA may be a polling time slot TS ₄ polling packets sent prior art of PP _4. The polling packet PP ₄ has an address ADDR ₄ . The slave device SL ₄ can have an address ADDR ₄ according to the polling packet PP ₄ to determine that the master device MA is required to respond from the device SL ₄ . Thus, when the time slot TS response _{4 4} SL polling means adjacent _{TS. 5} emitted from the slot corresponding to the polling packet ₄ of PP response packet RP _4. Therefore, the master device MA can poll the slave devices SL ₁ -SL ₄ supporting the default protocol of the present invention by issuing the polling packet SPP of the preset protocol of the present invention and the polling packet PP _{4 of the} prior art, respectively. The slave SL ₄ of the preset protocol of the present invention is not supported. That is to say, when the Bluetooth micro network NET includes both the slave device supporting the default protocol of the present invention and the slave device not supporting the default protocol of the present invention, the master device MA can still be in the Bluetooth micro network NET. Poll all slave devices.

Please refer to Figure 8. Figure 8 is a schematic diagram illustrating a polling system 800 of the present invention that is compatible with the Bluetooth protocol and has improved transmission efficiency. The polling system 800 includes a master device MA and slave devices SL ₁ -SL _M , wherein the slave devices SL ₁ -SL _M are slave devices that support the default protocol of the present invention. In the polling system 800, when the master device MA determines that the slave devices SL ₁ to SL _M are slave devices supporting the default protocol of the present invention by the method described in FIG. 2, the master device MA assigns a response sequence ORD ₁ ~ The ORD _{M is} given to the slave devices SL ₁ to SL _M , and then the master device MA can issue the polling packet SPP of the preset protocol of the present invention in the polling time slot TS ₀ by the method described in FIG. 6 to make the slave device SL ₁ ~ SL _M in response to each slot TS ₁ ~ TS _M emitted response packet RP ₁ ~ RP _M. In this way, in the polling system 800 of the present invention, when M is an odd number, the time required for the master device MA to poll the slave devices SL ₁ to SL _M is (M+1) time slots; when M is In the even case, the time required for the master device MA to poll the slave devices SL ₁ to SL _M is (M + 2) time slots.

In summary, according to the polling method provided by the present invention, the master device inquires whether each slave device supports a default agreement to determine the slave device supporting the predetermined agreement. And the master device sets a predetermined address as an instruction of the preset protocol. When the master device sends a polling packet having the predetermined address, the slave device supporting the preset protocol can respond in sequence. Therefore, even if the master device needs to poll the slave device, the master device only needs to issue a single polling packet with a predetermined address, so that the slave device supporting the default protocol can send a response packet. In this way, the transmission efficiency of the master device polling slave device can be improved, and the user is provided with greater convenience.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

800. . . Polling system

AC. . . Access code

AD. . . Address information

AK. . . Hand in hand

ASP ₁ ~ ASP ₄ . . . Inquiry command

BY. . . Busy information

ER. . . Debug information

HD. . . Head

MA. . . Main device

RP ₁ ~RP _M . . . Response packet

RSP ₁ ~RSP ₄ . . . Reply support packet

SL ₁ ~SL _M . . . Slave device

SPP, PP ₁ ~ PP ₄ . . . Polling packet

TS ₀ ~ TS _(2M+2) . . . Time slot

Figure 1 is a schematic diagram illustrating a prior art polling method.

Figure 2 is a diagram for explaining whether the master device inquires whether the slave device supports the preset protocol of the present invention in the inquiry support phase of the present invention.

Figure 3 is a schematic diagram showing the format of a polling packet in accordance with the default protocol of the present invention.

Figure 4 is a schematic diagram illustrating the polling of a master device using the default protocol of the present invention to poll two slave devices.

Figure 5 is a schematic diagram illustrating the polling of a master device using the default protocol of the present invention to poll three slave devices.

Figure 6 is a schematic diagram showing the polling of a plurality of slave devices by the master device using the default protocol of the present invention.

Figure 7 is a diagram showing a polling method of a master device when a Bluetooth micro-network includes both a slave device supporting the default protocol of the present invention and a slave device not supporting the default protocol of the present invention.

Figure 8 is a schematic diagram illustrating a polling device system of the present invention that is compatible with the Bluetooth protocol and has improved transmission efficiency.

MA. . . Main device

RP ₁ ~ RP ₃ . . . Response packet

SL ₁ ~SL ₃ . . . Slave device

SPP. . . Polling packet

TS ₀ ~ TS ₇ . . . Time slot

Claims (19)

A polling method compatible with a Bluetooth protocol and having improved transmission efficiency, comprising: a master setting a predetermined address as a preset agreement; wherein the preset agreement is to The master device can issue a single polling packet to sequentially respond to the slave device supporting the preset protocol; wherein the master device and the plurality of slave devices belong to a Bluetooth piconet; The master device transmits a polling packet having the first preset address to the plurality of slave devices; and the slave device supporting the predetermined protocol in the plurality of slave devices sequentially polls the packet to the master device. The polling method of claim 1, wherein the polling method further comprises: the master device inquiring whether the plurality of slave devices support the preset protocol to determine the slave device supporting the predetermined agreement among the plurality of slave devices . The polling method of claim 2, wherein the master device queries whether the plurality of slave devices support the preset protocol, to determine that the slave devices supporting the predetermined agreement in the plurality of slave devices comprise: the master device sends a corresponding a plurality of query commands for the plurality of slave devices; the plurality of slave devices respectively transmitting a plurality of reply support packets corresponding to the plurality of query commands; and the master device supports whether the packet is equal to a predetermined profile according to the plurality of reply frames, To determine whether the plurality of slave devices support the preset protocol. The polling method of claim 3, wherein when the first reply support packet and the second reply support packet of the plurality of reply support packets are equal to the predetermined data, the master device determines that the complex number corresponds to the plural number The first slave device of the first reply support packet of the reply support packet and the second slave device corresponding to the second reply support packet of the plurality of reply support packets support the preset protocol. The polling method of claim 4, wherein when the master device transmits the polling packet having the first preset address, the first slave device responds with a first response packet in a first response time slot. The second slave device responds to a second response packet in a second response time slot; the first response time slot and the second response time slot are equal in length and adjacent to each other. The polling method of claim 3, wherein when the third reply support packet of the plurality of reply support packets is not equal to the predetermined data, the master device determines the third corresponding to the plurality of reply support packets The third slave device of the plurality of slave devices that replies to the support packet does not support the default protocol. The polling method of claim 6, wherein when the master device transmits a second polling packet having one of the addresses of the third slave device, the third slave device responds with a third response time slot. The third response packet. A polling method compatible with a Bluetooth protocol and having improved transmission efficiency, comprising: a master issuing a first poll in a first polling time slot Packets; the M slave devices receive the first polling packet; wherein the master device and the M slave devices belong to a Bluetooth piconet; and the M slave devices are based on the M M initial response packets are sent out from the M first response time slots in the M first response time slots; wherein the M first response time slots are adjacent to each other, and the M first response time slots are in the slot The first priority response time slot is adjacent to the first polling time slot; wherein the Kth slave device of the M slave devices is in the Kth response order according to one of the M response sequences, so that the M Transmitting, in a first response time slot, a Kth first response packet in one of the M first response packets, wherein the first response time slot has a length of time and the first response time slot The length of time for a polling slot is equal to one cycle; where K and M represent positive integers and 2≦K≦M. The polling method of claim 8, wherein the first polling packet includes: a first access code indicating that the first polling packet belongs to the Bluetooth micro network; a first header includes: a first address information for storing a first predetermined address; a first busy information for indicating whether the M slave devices can transmit data; Handshake (ACK) information for indicating whether the M second response packets transmitted by the M slave devices before the first polling time slot are successfully transmitted; and a first debugging information for providing to the M slave devices to detect whether the first polling packet has an error. The polling method of claim 9, wherein the Kth device of the M slave devices has one of the M addresses and the Kth address; wherein the Kth address of the M addresses Different from the first predetermined address. The polling method of claim 10, further comprising: the primary device sending a second polling packet in a second polling time slot; wherein the second polling packet comprises: a second access code, Instructing the second polling packet to belong to the Bluetooth micro-network; and a second header comprising: a second address information for storing the first predetermined address; and a second busy information for using To indicate whether the M slave devices can transmit data; a second handshake (ACK) message is used to indicate whether the M first response packets transmitted by the M slave devices from the device are successfully transmitted; The second debugging information is used to provide the M slave devices to detect whether the second polling packet has an error; wherein the length of the second polling slot is equal to the period. The polling method of claim 11, wherein when the M is an odd number, the second polling time slot is adjacent to the last first response time slot in the M first response time slots; when M is an even number The second polling time slot is separated from the last first response time slot in the M first response time slots. The polling method of claim 8, further comprising: the master device inquiring whether all of the slave devices belonging to the Bluetooth micro network support the first polling packet, and according to the Bluetooth micro network All slave devices respond to determine that the M slave devices support the first polling packet. A polling system compatible with a Bluetooth protocol and having improved transmission efficiency, comprising: a master device for issuing a first polling packet; wherein the master device is in a first polling The first polling packet is sent in a time slot; and the M slave devices are configured to respectively respond to the M first responses of the first polling packet and the M slave devices to respectively correspond to the M first responses M first response packets are sent in the time slot; wherein the M first response time slots are adjacent to each other, and the M first first response time slot in the first response time slot and the first polling time slot Adjacent; wherein the Kth slave device of the M slave devices is in the Kth response order according to one of the M response sequences, so that one of the M first response time slots is the Kth first response time Sending, in the slot, one of the M first response packets, the Kth first response packet; wherein the master device and the M slave devices belong to a Bluetooth piconet; wherein K and M represent positive Integer, and 2≦K≦M. The polling system of claim 14, wherein the first polling packet comprises: a first access code indicating that the first polling packet belongs to the Bluetooth micro network; a first header includes: a first address information for storing a first predetermined address; a first busy information for indicating whether the M slave devices can transmit data; Handshake (ACK) information for indicating whether the M second response packets transmitted by the M slave devices before the first polling time slot are successfully transmitted; and a first debugging information for providing to the M slave devices to detect whether the first polling packet has an error. The polling system of claim 15, wherein the Kth device of the M slave devices has one of the M addresses and the Kth address; the Kth address of the M addresses Different from the first predetermined address. The polling system of claim 16, wherein the master device sends a second polling packet in a second polling time slot, the second polling packet comprising: a second access code for indicating The second polling packet belongs to the Bluetooth micro network; and a second header includes: a second address information for storing the first predetermined address; and a second busy information for indicating Whether the M slave devices can transmit data; a second handshake (ACK) information indicating whether the M first response packets transmitted by the M slave devices are successfully transmitted; and a second The debugging information is used to provide the M slave devices to detect whether the second polling packet has an error; wherein the length of the second polling slot is equal to the period. The polling system of claim 17, wherein when the M is an odd number, the second polling time slot is adjacent to the last first response time slot in the M first response time slots; when M is an even number The second polling time slot is separated from the last first response time slot in the M first response time slots. The polling system of claim 14, wherein the master device queries whether all of the slave devices belonging to the Bluetooth micro network support the first polling packet and according to all the slaves in the Bluetooth micro network The device responds to determine that the M slave devices support the first polling packet.