CN103916166A - Bluetooth data transmission method and bluetooth device - Google Patents
Bluetooth data transmission method and bluetooth device Download PDFInfo
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- CN103916166A CN103916166A CN201410126162.XA CN201410126162A CN103916166A CN 103916166 A CN103916166 A CN 103916166A CN 201410126162 A CN201410126162 A CN 201410126162A CN 103916166 A CN103916166 A CN 103916166A
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Abstract
The invention discloses a bluetooth data transmission method and a bluetooth device. The method comprises the steps that the connection with terminal equipment which supports a bluetooth 2.0 protocol is established, and first data sent by the terminal equipment which supports the bluetooth 2.0 protocol are acquired; the connection with terminal equipment which supports a bluetooth 4.0 protocol is established, and second data sent by the terminal equipment which supports the bluetooth 4.0 protocol are acquired; the first data are sent to the terminal equipment which supports the bluetooth 4.0 protocol, or the second data are sent to the terminal equipment which supports the bluetooth 2.0 protocol. According to the bluetooth data transmission method and the bluetooth device, the system connecting modes of bluetooth 2.0 and bluetooth 4.0 are compatible, and bluetooth 2.0 equipment and bluetooth 4.0 equipment can transmit the data.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of blue-teeth data transmission method and blue-tooth device.
Background technology
Bluetooth technology is the open global specifications of a kind of wireless data and voice communication, and it is connected to basis with near radio cheaply, sets up one and is connected especially for fixing with mobile device communication environment.It is widely used in all over the world, the plurality of devices such as the mobile phone that can be wireless, portable computer, automobile, stereophone, MP3 player, be on current market, support widest in area general, the wireless standard that function is abundant and the safest.
Than other wireless technologys: infrared, wireless 2.4G, WiFi, the plurality of advantages such as it is perfect that bluetooth has encryption measures, and the stable and compatible equipment of transmitting procedure is abundant.Especially in the today of authorizing threshold to reduce gradually, Bluetooth technology starts really to spread to all digital equipments.
In blue-teeth data transmission application, serial data communication is one of modal application one to one, bluetooth equipment has established in advance two unpaired messages between bluetooth equipment before dispatching from the factory, main side prestores from PIN code, the address etc. of end equipment, it is automatic link establishment that terminal device powers up, transparent serial ports transmission, without peripheral circuit intervention.
Current Android mobile phone is on the market bluetooth 2.1 substantially, can support more than 2.1 all portable equipments, highly versatile; And Mobile phone also can be compatible, but do not support iPhone4S, iPhone5 etc. to have the apple ios device of bluetooth 4.0 functions.
After 2010, Bluetooth SIG(bluetooth sig) release up-to-date versions 4.0, the development of bluetooth starts to tend to low-power consumption and transmission at a distance, and the transmission range of new edition bluetooth can reach 60 meters, transmission also becomes highly stable, is difficult for being disturbed with frequency band signals by other.
The Bluetooth chip of single mode is only supported a kind of Bluetooth protocol at present, can not compatible bluetooth 2.0 agreements and bluetooth 4.0 agreements, and the Bluetooth chip of bimodulus can be supported two kinds of Bluetooth protocols, but cannot realize between automatic switchover between Bluetooth protocol and bluetooth 2.0 equipment and bluetooth 4.0 equipment and transmit data, can only carry out transfer of data with the current Bluetooth protocol being connected, cost is higher.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of blue-teeth data transmission method and blue-tooth device, improves the effect of blue-teeth data transmission.
The object of the embodiment of the present invention is achieved through the following technical solutions:
A kind of blue-teeth data transmission method, comprising:
Connect with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data of the terminal equipment transmission of described support bluetooth 2.0 agreements;
Connect with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data of the terminal equipment transmission of described support bluetooth 4.0 agreements;
Described the first data are sent to the terminal equipment of described support bluetooth 4.0 agreements, or, described the second data are sent to the terminal equipment of described support bluetooth 2.0 agreements.
A kind of blue-tooth device, comprises bluetooth 2.0 modules, bluetooth 4.0 modules and the interconnecting module being connected with described bluetooth 2.0 modules and described bluetooth 4.0 modules:
Described bluetooth 2.0 modules, for connecting with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data of the terminal equipment transmission of described support bluetooth 2.0 agreements;
Described bluetooth 4.0 modules, for connecting with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data of the terminal equipment transmission of described support bluetooth 4.0 agreements;
Described interconnecting module, give described bluetooth 4.0 modules for obtaining the first Data Concurrent from described bluetooth 2.0 modules, described bluetooth 4.0 modules send to described the first data on the terminal equipment of described support bluetooth 4.0 agreements, or, obtain the second Data Concurrent from described bluetooth 4.0 modules and give described bluetooth 2.0 modules, described bluetooth 2.0 modules send to described the second data on the terminal equipment of described support bluetooth 2.0 agreements.
The technical scheme being provided by the invention described above embodiment can be found out, the system connected mode of blue-teeth data transmission method and blue-tooth device compatible bluetooth 2.0 and bluetooth 4.0, bluetooth 2.0 equipment and bluetooth 4.0 equipment can transmit data, have improved effect and the range of application of blue-teeth data transmission.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is embodiment of the present invention blue-teeth data transmission method schematic flow sheet.
Fig. 2 is that embodiment of the present invention blue-tooth device forms schematic diagram.
Fig. 3 is embodiment of the present invention Bluetooth system application schematic diagram.
Fig. 4 is embodiment of the present invention blue-teeth data transmission method application schematic diagram.
Fig. 5 is embodiment of the present invention blue-teeth data transmission method application schematic diagram.
Fig. 6 is embodiment of the present invention blue-teeth data transmission method application schematic diagram.
Fig. 7 is embodiment of the present invention Bluetooth system application schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of blue-teeth data transmission method, comprising:
Step 11, connect with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data that the terminal equipment of described support bluetooth 2.0 agreements sends;
Step 12, connect with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data that the terminal equipment of described support bluetooth 4.0 agreements sends;
Step 13, described the first data are sent to the terminal equipment of described support bluetooth 4.0 agreements;
Step 14, described the second data are sent to the terminal equipment of described support bluetooth 2.0 agreements.
The technical scheme being provided by the invention described above embodiment can be found out, the system connected mode of blue-teeth data transmission method and blue-tooth device compatible bluetooth 2.0 and bluetooth 4.0, bluetooth 2.0 equipment and bluetooth 4.0 equipment can transmit data, have improved effect and the range of application of blue-teeth data transmission.
In embodiment of the present invention blue-teeth data transmission method, support that the terminal equipment of bluetooth 2.0 agreements or 4.0 agreements can be referred to as bluetooth 2.0 equipment or bluetooth 4.0 equipment.Bluetooth 2.0 equipment or bluetooth 4.0 equipment can be mobile phones, and IPAD etc. are unrestricted.
The executive agent of embodiment of the present invention blue-teeth data transmission method is the device of bluetooth 4.0 modules and bluetooth 2.0 module compositions, bluetooth 2.0 modules are made up of Bluetooth chip and partial circuit, bluetooth 4.0 modules are made up of Bluetooth chip and partial circuit, bluetooth 4.0 modules can connect with bluetooth 4.0 equipment, bluetooth 2.0 modules can connect with bluetooth 2.0 equipment, realize bluetooth 2.0 equipment and bluetooth 4.0 equipment can transmit data, the Bluetooth chip that has overcome existing bimodulus once can only be connected with a kind of bluetooth equipment, can not be simultaneously and bluetooth 2.0 equipment and bluetooth 4.0 equipment connections, can not carry out the defect of the transfer of data between bluetooth 2.0 equipment and bluetooth 4.0 equipment simultaneously.
Embodiment of the present invention blue-teeth data transmission method, can also comprise:
Described the first data are sent to subscriber equipment, or described the second data are sent to subscriber equipment.
Particularly, connect based on bluetooth 4.0 modules and bluetooth 4.0 equipment, bluetooth 2.0 modules and bluetooth 2.0 equipment connect, in realization, bluetooth 4.0 modules can be controlled bluetooth 2.0 modules, and the first data are sent to bluetooth 4.0 modules by bluetooth 2.0 modules, then by bluetooth 4.0 modules, described the first data are sent to subscriber equipment, or described the second data are sent to subscriber equipment by bluetooth 4.0 modules.Or, by a MCU(Micro Control Unit who is connected with bluetooth 2.0 modules with bluetooth 4.0 modules, micro-control unit) and by described the first data are sent to subscriber equipment, and described the second data send to subscriber equipment.
Wherein, can pass through SPI(Serial Peripheral Interface, Serial Peripheral Interface (SPI)), IIC(Inter-Integrated Circuit, integrated circuit (IC) bus) etc. serial line interface transmission data to subscriber equipment, subscriber equipment can be the equipment of supporting above-mentioned transfer of data, exemplary, as bluetooth 2.0 equipment or bluetooth 4.0 equipment, as mobile unit, stereophone, MP3 player etc., unrestricted.
Embodiment of the present invention blue-teeth data transmission method, can also comprise:
Bluetooth 4.0 modules are obtained the data of subscriber equipment, and bluetooth 4.0 modules send the data to bluetooth 4.0 equipment, or bluetooth 4.0 modules send the data to bluetooth 2.0 equipment, then send the data to bluetooth 2.0 equipment by bluetooth 2.0 modules.
Further, embodiment of the present invention blue-teeth data transmission method, can also comprise:
Determine and support the connection status of the terminal equipment of bluetooth 2.0 agreements;
When described connection status is when connecting, obtain link signal intensity, in the time that described link signal intensity is less than the first predetermined threshold value, controls and disconnect and being connected of terminal equipment of supporting bluetooth 2.0 agreements, connect with the terminal equipment of support bluetooth 4.0 agreements;
Or, determine and the connection status of terminal equipment of supporting bluetooth 4.0 agreements;
When described connection status is when connecting, obtain link signal intensity, in the time that described link signal intensity is less than the second predetermined threshold value, controls and disconnect and being connected of terminal equipment of supporting bluetooth 4.0 agreements, connect with the terminal equipment of support bluetooth 2.0 agreements.
Wherein, bluetooth 4.0 modules can connect with bluetooth 4.0 equipment, bluetooth 2.0 Dual modules can connect with bluetooth 2.0 equipment, link signal intensity can be the RSSI(Received Signal Strength Indication of bluetooth 4.0 modules or bluetooth 2.0 modules, the signal strength signal intensity indication of reception).The first predetermined threshold value and the second predetermined threshold value can be arranged or user arranges voluntarily by system, unrestricted.
Visible, embodiment of the present invention blue-teeth data transmission method, bluetooth 2.0 and bluetooth 4.0, according to being connected relatively realizing freely and switch and be connected of signal strength signal intensity and threshold value, improve the effect of blue-teeth data transmission.
Further, embodiment of the present invention blue-teeth data transmission method, can also comprise:
In the time that described link signal intensity is less than the first predetermined threshold value, increase transmitting power and receiving sensitivity, until when link signal intensity is still less than the first predetermined threshold value described in when transmitting power and the receiving sensitivity value of reaching the limit of, just controls and disconnect and being connected of the terminal equipment of support bluetooth 2.0 agreements;
Or, in the time that described link signal intensity is less than the second predetermined threshold value, increase transmitting power and receiving sensitivity, until when link signal intensity is still less than the second predetermined threshold value described in when transmitting power and the receiving sensitivity value of reaching the limit of, just controls and disconnect and being connected of the terminal equipment of support bluetooth 4.0 agreements.
Particularly, connect based on bluetooth 4.0 modules and bluetooth 4.0 equipment, bluetooth 2.0 modules and bluetooth 2.0 equipment connect, in realization, in the time that described link signal intensity is less than the first predetermined threshold value, increase bluetooth 2.0 module transmitting power and receiving sensitivities..In the time that described link signal intensity is less than the second predetermined threshold value, increase bluetooth 2.0 module transmitting power and receiving sensitivities.
Wherein, increase transmitting power, the mode of receiving sensitivity can be understood with reference to prior art, makes wireless product have the ability of catching more strongly weak signal.
Further, embodiment of the present invention blue-teeth data transmission method, when the connection status of described bluetooth 2.0 modules is for connecting, and the connection status of described bluetooth 4.0 modules is when connecting, and described method can also comprise:
When being greater than and the link signal intensity of terminal equipment of supporting bluetooth 4.0 agreements with the link signal intensity of terminal equipment of supporting bluetooth 2.0 agreements, control and disconnect and being connected of terminal equipment of supporting bluetooth 4.0 agreements, connect with the terminal equipment of support bluetooth 2.0 agreements;
Or, when being greater than and the link signal intensity of terminal equipment of supporting bluetooth 2.0 agreements with the link signal intensity of terminal equipment of supporting bluetooth 4.0 agreements, control and disconnect and being connected of terminal equipment of supporting bluetooth 2.0 agreements, connect with the terminal equipment of support bluetooth 4.0 agreements.
Visible, embodiment of the present invention blue-teeth data transmission method, freely switches connection according to connecting signal strength signal intensity between bluetooth 2.0 and bluetooth 4.0, improves the effect of blue-teeth data transmission.
As shown in Figure 2, the embodiment of the present invention provides a kind of blue-tooth device, comprises bluetooth 2.0 modules 21, bluetooth 4.0 modules 22 and the interconnecting module 23 being connected with bluetooth 2.0 modules 21 and bluetooth 4.0 modules 22:
Bluetooth 2.0 modules 21, for connecting with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data of the terminal equipment transmission of described support bluetooth 2.0 agreements;
Bluetooth 4.0 modules 22, for connecting with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data of the terminal equipment transmission of described support bluetooth 4.0 agreements;
Interconnecting module 23, give bluetooth 4.0 modules 22 for obtaining the first Data Concurrent from bluetooth 2.0 modules 21, bluetooth 4.0 modules 22 send to described the first data on the terminal equipment of described support bluetooth 4.0 agreements, or, obtain the second Data Concurrent from bluetooth 4.0 modules 22 and give bluetooth 2.0 modules 21, bluetooth 2.0 modules 21 send to described the second data on the terminal equipment of described support bluetooth 2.0 agreements.
Support that the terminal equipment of bluetooth 2.0 agreements or 4.0 agreements can be referred to as bluetooth 2.0 equipment or bluetooth 4.0 equipment.Bluetooth 2.0 equipment or bluetooth 4.0 equipment can be mobile phones, and IPAD etc. are unrestricted.
Embodiment of the present invention blue-tooth device has bluetooth 4.0 modules and bluetooth 2.0 Dual modules, bluetooth 2.0 modules (bluetooth 4.0 modules) are made up of Bluetooth chip and partial circuit, bluetooth 4.0 modules can connect with bluetooth 4.0 equipment, bluetooth 2.0 modules can connect with bluetooth 2.0 equipment, realize bluetooth 2.0 equipment and bluetooth 4.0 equipment can transmit data.
Particularly, interconnecting module 23 can be MCU, and described MCU is also for described the first data are sent to subscriber equipment, or described the second data are sent to subscriber equipment;
Or interconnecting module 23 is arranged at one with bluetooth 4.0 modules 22, described bluetooth 4.0 modules are also for described the first data are sent to subscriber equipment, or described bluetooth 4.0 modules are also for sending to described subscriber equipment by described the second data.Interconnecting module 23 is arranged at one with bluetooth 4.0 modules 22, can be the function that bluetooth 4.0 modules 22 realize interconnecting module 23.
Wherein, can pass through the serial line interface transmission data such as SPI, IIC to subscriber equipment, subscriber equipment can be the equipment of supporting above-mentioned transfer of data, exemplary, as bluetooth 2.0 equipment or bluetooth 4.0 equipment, as mobile unit, stereophone, MP3 player etc., unrestricted.
Further, interconnecting module 23, also for determining the connection status of bluetooth 2.0 modules 21;
When described connection status is when connecting, interconnecting module is also for obtaining link signal intensity, in the time that described link signal intensity is less than the first predetermined threshold value, interconnecting module 23 also disconnects and being connected of terminal equipment of supporting bluetooth 2.0 agreements for controlling described bluetooth 2.0 modules 21, is connected by bluetooth 4.0 modules 22 and the terminal equipment of support bluetooth 4.0 agreements;
Or described interconnecting module 23, also for determining the connection status of described bluetooth 4.0 modules 22;
When described connection status is when connecting, interconnecting module 23 is also for obtaining link signal intensity, in the time that described link signal intensity is less than the second predetermined threshold value, interconnecting module 23 also disconnects and being connected of terminal equipment of supporting bluetooth 4.0 agreements for controlling described bluetooth 4.0 modules 22, is connected by bluetooth 2.0 modules 21 and the terminal equipment of support bluetooth 2.0 agreements.
Wherein, bluetooth 4.0 modules can connect with bluetooth 4.0 equipment, and bluetooth 2.0 Dual modules can connect with bluetooth 2.0 equipment, and link signal intensity can be the RSSI of bluetooth 4.0 modules or bluetooth 2.0 modules.The first predetermined threshold value and the second predetermined threshold value can be arranged or user arranges voluntarily by system, unrestricted.
Visible, embodiment of the present invention blue-tooth device, bluetooth 2.0 and bluetooth 4.0, according to being connected relatively realizing freely and switch and be connected of signal strength signal intensity and threshold value, improve the effect of blue-teeth data transmission.
Further, interconnecting module 23, also in the time that described link signal intensity is less than the first predetermined threshold value, increase transmitting power and the receiving sensitivity of bluetooth 2.0 modules 21, until when described in when the transmitting power of described bluetooth 2.0 modules 21 and the receiving sensitivity value of reaching the limit of, link signal intensity is still less than the first predetermined threshold value, just control described bluetooth 2.0 modules 21 and disconnect and being connected of terminal equipment of supporting bluetooth 2.0 agreements, connected by bluetooth 4.0 modules 22 and the terminal equipment of support bluetooth 4.0 agreements;
Or, interconnecting module 23, also in the time that described link signal intensity is less than the second predetermined threshold value, increase transmitting power and the receiving sensitivity of described bluetooth 4.0 modules 22, until when described in when the transmitting power of described bluetooth 4.0 modules 22 and the receiving sensitivity value of reaching the limit of, link signal intensity is still less than the second predetermined threshold value, just control described bluetooth 4.0 modules 22 and disconnect and being connected of terminal equipment of supporting bluetooth 4.0 agreements, connected by bluetooth 2.0 modules 22 and the terminal equipment of support bluetooth 2.0 agreements.
Wherein, increase transmitting power, the mode of receiving sensitivity can be understood with reference to prior art, makes wireless product have the ability of catching more strongly weak signal.
Further, when the connection status of bluetooth 2.0 modules 21 is for connecting, and the connection status of bluetooth 4.0 modules 22 is when connecting:
When the link signal intensity of bluetooth 2.0 modules 21 is greater than the link signal intensity of bluetooth 4.0 modules 22, interconnecting module 23 also disconnects and being connected of terminal equipment of supporting bluetooth 4.0 agreements for controlling bluetooth 4.0 modules 22, is connected by bluetooth 4.0 modules 22 and the terminal equipment of support bluetooth 4.0 agreements;
Or, when the link signal intensity of bluetooth 4.0 modules 22 is greater than the link signal intensity of bluetooth 2.0 modules 21, interconnecting module 23 also disconnects and being connected of terminal equipment of supporting bluetooth 2.0 agreements for controlling bluetooth 2.0 modules 21, is connected by bluetooth 2.0 modules 21 and the terminal equipment of support bluetooth 2.0 agreements.
Visible, embodiment of the present invention blue-teeth data transmission method, freely switches connection according to connecting signal strength signal intensity between bluetooth 2.0 and bluetooth 4.0, improves the effect of blue-teeth data transmission.
As shown in Figure 3, embodiment of the present invention system comprises: Bluetooth terminal equipment, bluetooth interconnecting device and subscriber equipment.
Bluetooth terminal equipment can be bluetooth 2.0 equipment 311 or bluetooth 4.0 equipment 312, as mobile phone, IPAD;
Bluetooth interconnecting device also can be called blue-tooth device, is mainly made up of bluetooth 2.0 modules 321 and bluetooth 4.0 modules 322;
Embodiment of the present invention system also comprises: serial communication module.
Bluetooth 4.0 modules are as the bridge of transfer of data, and bluetooth 4.0 modules 322, as control core, are connected and carry out transfer of data with bluetooth 2.0 modules 321 by serial port, as long as be responsible for being connected with bluetooth 2.0 modules 321 and transmitting data.Bluetooth 4.0 modules 322 can be passed through AT(Attention like this) instruction effectively controls the connection status of bluetooth 2.0 modules 321 Real-time Obtaining bluetooth 2.0 modules 321 and the data that receive.
Bluetooth 4.0 modules 322 can be connected and transmit data with bluetooth 4.0 terminal 312 equipment, bluetooth 4.0 modules 321 are connected and carry out transfer of data with subscriber equipment 33 by other data transfer modes (as serial ports) more simultaneously, in real time the data of Bluetooth terminal equipment are sent to subscriber equipment, the information of subscriber equipment is sent to Bluetooth terminal equipment in real time simultaneously.
Further, as shown in Figure 4, the invention process blue-teeth data transmitting procedure comprises:
Step 41, set up bluetooth connect.
The Bluetooth terminal equipment with blue tooth communication function is initiated connection request to bluetooth module, if bluetooth module, in broadcast state, connects according to the setting of acquiescence, Bluetooth terminal equipment returns to connection status to bluetooth module.
Step 42, judge Bluetooth protocol.
The bluetooth module of current connection is judged the Bluetooth protocol stack type of current connection according to the state returning, and Bluetooth terminal equipment is registered and bound, and Bluetooth terminal facility information is kept in the flash of micro-coremaking sheet, and connect and use convenient next time fast.
If judge, Bluetooth protocol stack type is bluetooth 2.0, enters 43, if judge, Bluetooth protocol stack type is bluetooth 4.0, enters 44.
Step 43, judge whether link signal intensity is greater than setting threshold.
The bluetooth module (bluetooth 2.0 modules) of current connection obtains link signal intensity by instruction access bluetooth protocol repertory link layer and whether is greater than setting threshold.
If link signal intensity is greater than setting threshold, enters 45, otherwise enter 46.
Step 44, judge whether link signal intensity is greater than setting threshold.
The bluetooth module (bluetooth 4.0 modules) of current connection obtains link signal intensity by instruction access bluetooth protocol repertory link layer and whether is greater than setting threshold.
If link signal intensity is greater than setting threshold, enters 47, otherwise enter 48.
Step 45, transmission data.
The data of Bluetooth terminal equipment are sent to subscriber equipment by the bluetooth module of current connection.
Or the data of Bluetooth terminal equipment are sent to another Bluetooth terminal equipment by the bluetooth module of current connection.
Exemplary, between bluetooth 2.0 equipment and bluetooth 4.0 equipment, to transmit under data pattern, bluetooth 4.0 modules are responsible for connecting bluetooth 4.0 equipment and are transmitted data, and bluetooth 2.0 modules are responsible for connecting bluetooth 2.0 equipment and are transmitted data.
Bluetooth 4.0 modules receive bluetooth 4.0 equipment send data after send to bluetooth 2.0 modules by serial ports, bluetooth 2.0 modules directly send to bluetooth 2.0 equipment data, have realized like this bluetooth 4.0 equipment to bluetooth 2.0 equipment sending datas.
Bluetooth 2.0 modules receive bluetooth 2.0 equipment send data after send to bluetooth 4.0 modules by serial ports, bluetooth 4.0 modules directly send to bluetooth 4.0 equipment data, have realized like this bluetooth 2.0 equipment to bluetooth 2.0 equipment sending datas.
Step 46, switching Bluetooth protocol.
Link signal intensity is less than predetermined threshold value, can first increase transmitting power and the receiving sensitivity of the bluetooth module of current connection, strengthens signal strength signal intensity;
If the signal strength signal intensity that module is adjusted to after maximum transmitting power and receiving sensitivity is still less than predetermined threshold value, bluetooth module is switched.
As Bluetooth protocol 2.0 is switched to Bluetooth protocol 4.0: bluetooth 2.0 modules are cut off and being connected of Bluetooth terminal equipment, the bluetooth 4.0 modules connection signal of going on the air, connects with Bluetooth terminal equipment, specifically referring to hereinafter description.
Step 47, transmission data.
The data of Bluetooth terminal equipment are sent to subscriber equipment by the bluetooth module of current connection.
Step 48, switching Bluetooth protocol.
Link signal intensity is less than predetermined threshold value, can first increase transmitting power and the receiving sensitivity of the bluetooth module of current connection, strengthens signal strength signal intensity;
If the signal strength signal intensity that module is adjusted to after maximum transmitting power and receiving sensitivity is still less than predetermined threshold value, bluetooth module is switched.
As Bluetooth protocol 4.0 is switched to Bluetooth protocol 2.0: bluetooth 4.0 modules are cut off and being connected of Bluetooth terminal equipment, the bluetooth 2.0 modules connection signal of going on the air, connects with Bluetooth terminal equipment, specifically referring to hereinafter description.
Can first select, before step 41, can also comprise system initialization step, therefore not to repeat here.
Bluetooth terminal equipment is 2, can one be bluetooth 2.0 equipment, another is bluetooth 4.0 equipment, or 2 is all the bluetooth equipment of compatible bluetooth agreement 4.0 and Bluetooth protocol 2.0.
Concrete, as shown in Figure 5, as Bluetooth protocol 2.0, to be switched to the concrete handoff procedure of Bluetooth protocol 4.0 as follows:
51, bluetooth 2.0 modules are cut off and being connected of Bluetooth terminal equipment.
52, the bluetooth 4.0 modules connection signal of going on the air.
53, automatic connection of Bluetooth 4.0 modules after the request connection signal that Bluetooth terminal equipment Inspection is sent to bluetooth 4.0 modules.
54, bluetooth 4.0 module accesses protocol stack link layers obtain signal link quality.
If signal link quality is less than or equal to default threshold value, the link quality of bluetooth 2.0 modules and bluetooth 4.0 modules is judged.
55, judge that signal link quality is whether higher than the link quality of bluetooth 4.0 modules.
If the link quality of 56 bluetooth 2.0 modules, higher than the link quality of bluetooth 4.0 modules, is switched to bluetooth 2.0 modules.
If the link quality of 57 bluetooth 4.0 modules higher than the link quality of bluetooth 2.0 modules, uses bluetooth 4.0 module transmission data.
Visible, after bluetooth module is connected with Bluetooth terminal, the Bluetooth protocol of the current connection of program automatic mark, bluetooth module selects bluetooth protocol repertory to send data to terminal equipment according to current connection status automatically, guarantees real-time data transmission.
As shown in Figure 6, the process that Bluetooth protocol 4.0 is switched to Bluetooth protocol 2.0 switches to the process of bluetooth 4.0 with bluetooth 2.0:
61, bluetooth 4.0 modules are cut off and being connected of Bluetooth terminal equipment.
62, the bluetooth 2.0 modules connection signal of going on the air.
63, automatic connection of Bluetooth 2.0 modules after the request connection signal that Bluetooth terminal equipment Inspection is sent to bluetooth 2.0 modules.
64, bluetooth 2.0 module accesses protocol stack link layers obtain signal link quality.
If signal link quality is less than or equal to default threshold value, the link quality of bluetooth 4.0 modules and bluetooth 2.0 modules is judged.
65, judge that signal link quality is whether higher than the link quality of bluetooth 4.0 modules.
If the link quality of 66 bluetooth 4.0 modules, higher than the link quality of bluetooth 2.0 modules, is switched to bluetooth 4.0 modules.
If the link quality of 67 bluetooth 2.0 modules, higher than the link quality of bluetooth 4.0 modules, uses bluetooth 20 modules.
Visible, after bluetooth module is connected with Bluetooth terminal, the Bluetooth protocol of the current connection of program automatic mark, bluetooth module selects bluetooth protocol repertory to send data to terminal equipment according to current connection status automatically, guarantees real-time data transmission.
As shown in Figure 7, embodiment of the present invention system comprises: Bluetooth terminal equipment, bluetooth interconnecting device and subscriber equipment.
Bluetooth terminal equipment can be bluetooth 2.0 equipment 711 or bluetooth 4.0 equipment 712, as mobile phone, IPAD;
Bluetooth interconnecting device also can be called blue-tooth device, is mainly made up of bluetooth 2.0 modules 721, bluetooth 4.0 modules 722 and MCU723;
Can use existing bluetooth 2.0 modules and bluetooth 4.0 modules, by MCU, the two is connected to transmission data again, can realize bluetooth 2.0 modules and bluetooth 4.0 intermodules freely switch, also can realize with subscriber equipment 73 and transmit data and bluetooth 2.0 equipment and bluetooth 4.0 equipment rooms transmission data by modes such as serial ports, SPI, USB.
Wherein, the control core that MCU is this system, the main identification bluetooth connection status of being responsible for, with bluetooth 2.0 modules and bluetooth 4.0 modules and user device transmissions data, as the bridge of bluetooth 2.0 modules and bluetooth 4.0 modules and user device transmissions data, this scheme cost is higher, realizes simpler.
The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claims.
Claims (10)
1. a blue-teeth data transmission method, is characterized in that, comprising:
Connect with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data of the terminal equipment transmission of described support bluetooth 2.0 agreements;
Connect with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data of the terminal equipment transmission of described support bluetooth 4.0 agreements;
Described the first data are sent to the terminal equipment of described support bluetooth 4.0 agreements, or, described the second data are sent to the terminal equipment of described support bluetooth 2.0 agreements.
2. blue-teeth data transmission method according to claim 1, is characterized in that, described method also comprises:
Described the first data are sent to subscriber equipment, or described the second data are sent to subscriber equipment.
3. blue-teeth data transmission method according to claim 1 and 2, is characterized in that, described method also comprises the connection status of determining and supporting the terminal equipment of bluetooth 2.0 agreements;
When described connection status is when connecting, obtain link signal intensity, in the time that described link signal intensity is less than the first predetermined threshold value, controls and disconnect and being connected of terminal equipment of supporting bluetooth 2.0 agreements, connect with the terminal equipment of support bluetooth 4.0 agreements;
Or, determine and the connection status of terminal equipment of supporting bluetooth 4.0 agreements;
When described connection status is when connecting, obtain link signal intensity, in the time that described link signal intensity is less than the second predetermined threshold value, controls and disconnect and being connected of terminal equipment of supporting bluetooth 4.0 agreements, connect with the terminal equipment of support bluetooth 2.0 agreements.
4. blue-teeth data transmission method according to claim 3, is characterized in that, described method also comprises:
In the time that described link signal intensity is less than the first predetermined threshold value, increase transmitting power and receiving sensitivity, until when link signal intensity is still less than the first predetermined threshold value described in when transmitting power and the receiving sensitivity value of reaching the limit of, just controls and disconnect and being connected of the terminal equipment of support bluetooth 2.0 agreements;
Or, in the time that described link signal intensity is less than the second predetermined threshold value, increase transmitting power and receiving sensitivity, until when link signal intensity is still less than the second predetermined threshold value described in when transmitting power and the receiving sensitivity value of reaching the limit of, just controls and disconnect and being connected of the terminal equipment of support bluetooth 4.0 agreements.
5. blue-teeth data transmission method according to claim 4, it is characterized in that, when with support the connection status of terminal equipment of bluetooth 2.0 agreements for being connected, and with the connection status of the terminal equipment of support bluetooth 4.0 agreements when being connected, described method also comprises:
Disconnect and being connected of the terminal equipment of support bluetooth 4.0 agreements when being greater than and the link signal intensity of terminal equipment of supporting bluetooth 4.0 agreements with the link signal intensity of terminal equipment of supporting bluetooth 2.0 agreements, controlling;
Or, disconnect and being connected of the terminal equipment of support bluetooth 2.0 agreements when being greater than and the link signal intensity of terminal equipment of supporting bluetooth 2.0 agreements with the link signal intensity of terminal equipment of supporting bluetooth 4.0 agreements, controlling.
6. a blue-tooth device, is characterized in that, comprises bluetooth 2.0 modules, bluetooth 4.0 modules and the interconnecting module being connected with described bluetooth 2.0 modules and described bluetooth 4.0 modules:
Described bluetooth 2.0 modules, for connecting with the terminal equipment of supporting bluetooth 2.0 agreements, and obtain the first data of the terminal equipment transmission of described support bluetooth 2.0 agreements;
Described bluetooth 4.0 modules, for connecting with the terminal equipment of supporting bluetooth 4.0 agreements, and obtain the second data of the terminal equipment transmission of described support bluetooth 4.0 agreements;
Described interconnecting module, give described bluetooth 4.0 modules for obtaining the first Data Concurrent from described bluetooth 2.0 modules, described bluetooth 4.0 modules send to described the first data on the terminal equipment of described support bluetooth 4.0 agreements, or, obtain the second Data Concurrent from described bluetooth 4.0 modules and give described bluetooth 2.0 modules, described bluetooth 2.0 modules send to described the second data on the terminal equipment of described support bluetooth 2.0 agreements.
7. blue-tooth device according to claim 6, is characterized in that, described interconnecting module is MCU micro-control unit, and described MCU is also for described the first data are sent to subscriber equipment, or described the second data are sent to subscriber equipment;
Or described interconnecting module and described bluetooth 4.0 modules are arranged at one, described bluetooth 4.0 modules are also for described the first data are sent to subscriber equipment, or described bluetooth 4.0 modules are also for sending to described subscriber equipment by described the second data.
8. according to the blue-tooth device described in claim 6 or 7, it is characterized in that, described interconnecting module, also for determining the connection status of described bluetooth 2.0 modules;
When described connection status is when connecting, described interconnecting module is also for obtaining link signal intensity, in the time that described link signal intensity is less than the first predetermined threshold value, described interconnecting module also disconnects and being connected of terminal equipment of supporting bluetooth 2.0 agreements for controlling described bluetooth 2.0 modules, is connected by described bluetooth 4.0 modules and the terminal equipment of support bluetooth 4.0 agreements;
Or described interconnecting module, also for determining the connection status of described bluetooth 4.0 modules;
When described connection status is when connecting, described interconnecting module is also for obtaining link signal intensity, in the time that described link signal intensity is less than the second predetermined threshold value, described interconnecting module also disconnects and being connected of terminal equipment of supporting bluetooth 4.0 agreements for controlling described bluetooth 4.0 modules, is connected by described bluetooth 2.0 modules and the terminal equipment of support bluetooth 2.0 agreements.
9. blue-tooth device according to claim 8, it is characterized in that, described interconnecting module, also in the time that described link signal intensity is less than the first predetermined threshold value, increase transmitting power and the receiving sensitivity of described bluetooth 2.0 modules, until when link signal intensity is still less than the first predetermined threshold value described in when the transmitting power of described bluetooth 2.0 modules and the receiving sensitivity value of reaching the limit of, just controls described bluetooth 2.0 modules and disconnect and being connected of the terminal equipment of support bluetooth 2.0 agreements;
Or, described interconnecting module, also in the time that described link signal intensity is less than the second predetermined threshold value, increase transmitting power and the receiving sensitivity of described bluetooth 4.0 modules, until when link signal intensity is still less than the second predetermined threshold value described in when the transmitting power of described bluetooth 4.0 modules and the receiving sensitivity value of reaching the limit of, just controls described bluetooth 4.0 modules and disconnect and being connected of the terminal equipment of support bluetooth 4.0 agreements.
10. blue-tooth device according to claim 9, is characterized in that, when the connection status of described bluetooth 2.0 modules is for connecting, and the connection status of described bluetooth 4.0 modules is when connecting:
When the link signal intensity of described bluetooth 2.0 modules is greater than the link signal intensity of described bluetooth 4.0 modules, described interconnecting module also disconnects and being connected of the terminal equipment of support bluetooth 4.0 agreements for controlling described bluetooth 4.0 modules;
Or when the link signal intensity of described bluetooth 4.0 modules is greater than the link signal intensity of described bluetooth 2.0 modules, described interconnecting module also disconnects and being connected of the terminal equipment of support bluetooth 2.0 agreements for controlling described bluetooth 2.0 modules.
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