CN105719454A - Extensible ZigBee data transmission device and method - Google Patents
Extensible ZigBee data transmission device and method Download PDFInfo
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- CN105719454A CN105719454A CN201610060900.4A CN201610060900A CN105719454A CN 105719454 A CN105719454 A CN 105719454A CN 201610060900 A CN201610060900 A CN 201610060900A CN 105719454 A CN105719454 A CN 105719454A
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Abstract
The invention discloses an extensible ZigBee data transmission device and method. The device comprises a data acquisition unit, a data conversion unit, a data sending unit, a data receiving unit, a ZigBee data gateway and a power source control unit. A unified standard metadatabase is adopted, so that when ZigBee devices produced by different manufactures are interconnected, people can achieve interconnection without depending on data gateways of the ZigBee devices, and the characteristic of easy use and low cost in the ZigBee standard are achieved. The device has the advantages of being accurate in transmission result, low in standby power consumption, small in size, capable of preventing power-down and the like, and has application prospects.
Description
Technical field
The present invention relates to a kind of ZigBee data transmission set and method, particularly relate to a kind of ZigBee equipment quantitatively extendible data key values transport module and data transmission method.
Background technology
A kind of technology that ZigBee technology is the rise recently as Internet of Things and Smart Home and is used widely.In the application of Internet of Things and Smart Home, ZigBee technology due to its MANET, power consumption is little, cost is low, use the advantage such as simple to become one preferred technique.But, ZigBee equipment purposes on the market is varied, its manufacturer is different, even if in the compatible situation of protocol stack used, transmitted data are owing to lacking unified form, thus can only by respective data gateway identification so that the ZigBee equipment for certain Application Design must be disposed using the form of whole system and cannot add other system as independent equipment, has run counter to the design concept of ZigBee low cost low complex degree.
Summary of the invention
For overcoming prior art due to the inconsistent defect causing ZigBee equipment poor expandability of ZigBee device data transformat, the purpose of first aspect present invention is to provide a kind of extendible ZigBee data transmission set.
The concrete solution technical scheme of the present invention is as follows:
A kind of extendible ZigBee data transmission set, including the data acquisition unit being sequentially connected with, Date Conversion Unit, data transmission unit and the first power control unit of being connected with above-mentioned each unit；With data receipt unit, ZigBee data gateway and the second source control unit that is connected with above-mentioned each unit.
Described data acquisition unit includes data collection station, data acquisition microcontroller, the first data storage card.The input of described data collection station and described data acquisition microcontroller communicates to connect, the signal output part of described data acquisition microcontroller communicates to connect with described first data storage card, described data transmission unit respectively, the loss of data when purpose of storage card is to prevent equipment operation exception is set, data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data.Described data acquisition microcontroller is for adopting 16 MSP430 single-chip microcomputers, receive the signal of described acquisition terminal collection and be converted into analog voltage signal, pass to described data acquisition microcontroller, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to described Date Conversion Unit.Further, described data acquisition microcontroller includes 3.3V power circuit, reset circuit, JTAG debug circuit.
Described Date Conversion Unit includes data converter, ZigBee data metadata storehouse and data Networking Platform software.The data received are converted into the digital signal of unified key assignments form by described Date Conversion Unit.The data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition；The data value that described data acquisition unit collects is defined as " value ".Described data gateway platform software manages described ZigBee data metadata storehouse, add fashionable when there being the new not ZigBee equipment in critical field, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system.For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer.
Described data transmission unit includes the ZigBee RF transceiver and the radio-frequency (RF) power amplification that are sequentially connected with.Described radio-frequency (RF) power amplification includes gate-controlled switch circuit, radio-frequency (RF) power amplification chip and power amplification output circuit；Described gate-controlled switch circuit is connected with the input of described radio-frequency (RF) power amplification chip, and described power amplification output circuit is connected with the outfan of described radio-frequency (RF) power amplification chip；Described ZigBee RF transceiver is connected with described radio-frequency (RF) power amplification chip by described gate-controlled switch circuit.Described ZigBee RF transceiver includes PIFA antenna.Digital signal is by described PIFA antenna transmission to described data receipt unit.Further, described radio-frequency (RF) power amplification chip is provided with chip protection circuit.Described data transmission unit, will be set to the data of " key "-" value " form, send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, the data value that " value " collects for data acquisition unit described previously.
Described first power control unit includes charge management circuit, mu balanced circuit, low pressure instruction and under-voltage protecting circuit, can equipment short time power down situation be responded in time.Described first power control unit includes rechargeable lithium battary; when described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery.
The difference of described second source control unit and described first power control unit is only, and described second source control unit is that described ZigBee data gateway, described data receipt unit are powered.
Described ZigBee data gateway, including main control chip, the second data storage card, the data received are respectively sent to the second data storage card and main control chip by described ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can " key "-" value " data be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net.
Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
Further, several extendible ZigBee data transmission sets have compatible protocol stack, between described extendible ZigBee data transmission set can MANET and formed arrive data gateway complete path.
Further, the extendible ZigBee data transmission set of described one also includes cloud computing platform, the extendible ZigBee data transmission set of described one is connected with 3G/4G/5G network communication, in real time data are uploaded to described cloud computing platform, and receiving the instruction that described cloud computing platform sends, the data received are stored, calculate, analyze and send instruction according to data result by described cloud computing platform.
The purpose of second aspect present invention is to provide a kind of method of extendible ZigBee data transmission set, specific as follows:
The acquisition terminal of data acquisition unit gathers the initial data of various parameters in Internet of things system, and it is converted into analog voltage signal, pass to by the data acquisition microcontroller of 16 MSP430 single-chip microcomputers again, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to the first storage card and Date Conversion Unit.Described first data storage card can prevent loss of data during equipment operation exception, the data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data.
The data received are converted into the digital signal of unified key assignments form by the data converter of Date Conversion Unit.Primary operational is completed by ZigBee data metadata storehouse, and the data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition.Add fashionable when there being the new not ZigBee equipment in critical field, described ZigBee data metadata storehouse is managed by data gateway platform software, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system.For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer.
Data transmission unit, will be set to the data mode of " key "-" value ", send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, and " value " is the data value that the described data acquisition unit addressed above collects.
Equipment short time power down situation is responded by the first power control unit in time.When described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery.
Second source control unit is that described ZigBee data gateway, described data receipt unit are powered, and its method of work is identical with the first power control unit.
The data received are respectively sent to the second data storage card and main control chip by ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can the data that the digital signal of key assignments form is formed be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net.Specifically, the described ZigBee data gateway being added with ZigBee data metadata storehouse, according to the data Explanation way corresponding to " key " of definition in metadatabase, understand " value " that send from ZigBee equipment, the comparison of " key " that receive-" value " data is understood and is reduced to the initial data that data acquisition unit gathers.Described data Explanation way, it is possible to be the program, script or the executable file that write, can also be function library, source code or mathematical formulae.
Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
The invention has the beneficial effects as follows:
1, the one extendible ZigBee data transmission set that the present invention relates to has the features such as transmission result is accurate, stand-by power consumption is low, size is little, power down preventing.
2, realize ZigBee terminal unit and data gateway can be mutually general as single equipment in the ZigBee application systems such as such as Smart Home, intelligence endowment, reading intelligent agriculture, it is not necessary to dispose with whole system form, expand the application of ZigBee equipment.
3, the present invention adopts the metadatabase of unified standardization, make the ZigBee equipment that different manufacturers produces when interconnection, without relying on respective data gateway, add fashionable there being new ZigBee equipment, system can be expanded by system is done minimum amendment, really realize ZigBee standard uses characteristic simple, with low cost.
Accompanying drawing explanation
Fig. 1 is the table depositing " key " in metadatabase；
Fig. 2 is that ZigBee device data sends form.
In Fig. 1,1, first numbering of " key ", 2, the meaning of " key " corresponding data, 3, the type of " key " corresponding data, 4, the deciphering method of " key " corresponding data；
In Fig. 2,5, ZigBee device data frame control word, 6, ZigBee other data of device data frame, 7, second numbering of " key ", 8, " value " that equipment collects, 9, other " key "-" value " that collect of equipment, 10, ZigBee device data frame check position.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is further described.Illustrating it should be understood that the following examples are intended only as, and do not limit the scope of the invention, apparent change and modification that simultaneously those skilled in the art makes according to the present invention are also contained within the scope of the invention.
Embodiment 1
A kind of extendible ZigBee data transmission set, for collecting temperature, including the data acquisition unit being sequentially connected with, Date Conversion Unit, data transmission unit and the first power control unit of being connected with above-mentioned each unit；With data receipt unit, ZigBee data gateway and the second source control unit that is connected with above-mentioned each unit.
Described data acquisition unit, collecting temperature data are also sent to data transmission unit.Described data transmission unit, is the form that ZigBee device data is set to " key "-" value ", and sends in a wireless form.Wherein " key " is the data number being associated with described ZigBee data metadata storehouse, and " value " is the data value that ZigBee equipment collects.In described ZigBee data metadata storehouse, the data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association, this numbering is called " key ".In the present embodiment, the first numbering 1 adding " key " is " 001 ", the meaning 2 of " key " corresponding data is " temperature ", and the type 3 of " key " corresponding data is double precision type double, and the data deciphering method 4 that " key " is corresponding is the function of " SolveTemperatureData " by name.For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer.Described ZigBee data metadata storehouse is managed by the software of data gateway platform, add fashionable when there being the new not ZigBee equipment in critical field, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system.
Described data receipt unit, receives the digital signal of " key "-" value " form, is sent to ZigBee data gateway.
Described ZigBee data gateway, it is added with described ZigBee data metadata storehouse, according to the data Explanation way corresponding to " key " of definition in metadatabase, ZigBee data gateway is according to the second numbering 7 receiving " key " in data, search numbering " 001 " corresponding in metadatabase, and by equipment collection to " value " 8 utilize deciphering method 4 " SolveTemperatureData " function of " key " corresponding data to understand, the temperature data being reduced to the collection of ZigBee equipment is understood in the comparison of " key " that receive-" value " data.
Embodiment 2
A kind of method of extendible ZigBee data transmission set, specific as follows:
The acquisition terminal of data acquisition unit gathers the initial data of various parameters in Internet of things system, and it is converted into analog voltage signal, pass to by the data acquisition microcontroller of 16 MSP430 single-chip microcomputers again, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to the first storage card and Date Conversion Unit.Described first data storage card can prevent loss of data during equipment operation exception, the data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data.The data received are converted into the digital signal of unified key assignments form by the data converter of Date Conversion Unit.Primary operational is completed by ZigBee data metadata storehouse, and the data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition.Add fashionable when there being the new not ZigBee equipment in critical field, described ZigBee data metadata storehouse is managed by data gateway platform software, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system.For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer.Data transmission unit, will be set to the data mode of " key "-" value ", send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, and " value " is the data value that the described data acquisition unit addressed above collects.
Equipment short time power down situation is responded by the first power control unit in time.When described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery.Second source control unit is that described ZigBee data gateway, described data receipt unit are powered, and its method of work is identical with the first power control unit.Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
The data received are respectively sent to the second data storage card and main control chip by ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can the data that the digital signal of key assignments form is formed be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net.Specifically, the described ZigBee data gateway being added with ZigBee data metadata storehouse, according to the data Explanation way corresponding to " key " of definition in metadatabase, understand " value " that send from ZigBee equipment, the comparison of " key " that receive-" value " data is understood and is reduced to the initial data that data acquisition unit gathers.Described data Explanation way, it is possible to be the program, script or the executable file that write, can also be function library, source code or mathematical formulae.
Embodiment 3
A kind of extendible ZigBee data transmission set, including the data acquisition unit being sequentially connected with, Date Conversion Unit, data transmission unit and the first power control unit of being connected with above-mentioned each unit；With data receipt unit, ZigBee data gateway and the second source control unit that is connected with above-mentioned each unit.
Described data acquisition unit includes data collection station, data acquisition microcontroller, the first data storage card.The input of described data collection station and described data acquisition microcontroller communicates to connect, the signal output part of described data acquisition microcontroller communicates to connect with described first data storage card, described data transmission unit respectively, the loss of data when purpose of storage card is to prevent equipment operation exception is set, data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data.Described data acquisition microcontroller is for adopting 16 MSP430 single-chip microcomputers, receive the signal of described acquisition terminal collection and be converted into analog voltage signal, pass to described data acquisition microcontroller, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to described Date Conversion Unit.Described data acquisition microcontroller includes 3.3V power circuit, reset circuit, JTAG debug circuit.
Described Date Conversion Unit includes data converter, ZigBee data metadata storehouse and data Networking Platform software.The data received are converted into the digital signal of unified key assignments form by described Date Conversion Unit.The data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition；The data value that described data acquisition unit collects is defined as " value ".Described data gateway platform software manages described ZigBee data metadata storehouse, add fashionable when there being the new not ZigBee equipment in critical field, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system.For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer.
Described data transmission unit includes the ZigBee RF transceiver and the radio-frequency (RF) power amplification that are sequentially connected with.Described radio-frequency (RF) power amplification includes gate-controlled switch circuit, radio-frequency (RF) power amplification chip and power amplification output circuit；Described gate-controlled switch circuit is connected with the input of described radio-frequency (RF) power amplification chip, and described power amplification output circuit is connected with the outfan of described radio-frequency (RF) power amplification chip；Described ZigBee RF transceiver is connected with described radio-frequency (RF) power amplification chip by described gate-controlled switch circuit.Described ZigBee RF transceiver includes PIFA antenna.Digital signal is by described PIFA antenna transmission to described data receipt unit.Described radio-frequency (RF) power amplification chip is provided with chip protection circuit.Described data transmission unit, will be set to the data of " key "-" value " form, send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, the data value that " value " collects for data acquisition unit described previously.
Described first power control unit includes charge management circuit, mu balanced circuit, low pressure instruction and under-voltage protecting circuit, can equipment short time power down situation be responded in time.Described first power control unit includes rechargeable lithium battary; when described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery.The difference of described second source control unit and described first power control unit is only, and described second source control unit is that described ZigBee data gateway, described data receipt unit are powered.
Described ZigBee data gateway, including main control chip, the second data storage card, the data received are respectively sent to the second data storage card and main control chip by described ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can " key "-" value " data be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net.Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
The extendible ZigBee data transmission set of described one also includes cloud computing platform, the extendible ZigBee data transmission set of described one is connected with 3G/4G/5G network communication, in real time data are uploaded to described cloud computing platform, and receiving the instruction that described cloud computing platform sends, the data received are stored, calculate, analyze and send instruction according to data result by described cloud computing platform.Several extendible ZigBee data transmission sets have compatible protocol stack, between described extendible ZigBee data transmission set can MANET and formed arrive data gateway complete path.
Claims (6)
1. an extendible ZigBee data transmission set, it is characterised in that: the data acquisition unit that includes being sequentially connected with, Date Conversion Unit, data transmission unit and the first power control unit being connected with above-mentioned each unit；With data receipt unit, ZigBee data gateway and the second source control unit that is connected with above-mentioned each unit；
Described data acquisition unit includes data collection station, data acquisition microcontroller, the first data storage card；The input of described data collection station and described data acquisition microcontroller communicates to connect, the signal output part of described data acquisition microcontroller communicates to connect with described first data storage card, described data transmission unit respectively, the loss of data when purpose of storage card is to prevent equipment operation exception is set, data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data；Described data acquisition microcontroller is for adopting 16 MSP430 single-chip microcomputers, receive the signal of described acquisition terminal collection and be converted into analog voltage signal, pass to described data acquisition microcontroller, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to described Date Conversion Unit；
Described Date Conversion Unit includes data converter, ZigBee data metadata storehouse and data Networking Platform software；The data received are converted into the digital signal of unified key assignments form by described Date Conversion Unit；The data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition；The data value that described data acquisition unit collects is defined as " value "；Described data gateway platform software manages described ZigBee data metadata storehouse, add fashionable when there being the new not ZigBee equipment in critical field, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system；For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer；
Described data transmission unit includes the ZigBee RF transceiver and the radio-frequency (RF) power amplification that are sequentially connected with；Described radio-frequency (RF) power amplification includes gate-controlled switch circuit, radio-frequency (RF) power amplification chip and power amplification output circuit；Described gate-controlled switch circuit is connected with the input of described radio-frequency (RF) power amplification chip, and described power amplification output circuit is connected with the outfan of described radio-frequency (RF) power amplification chip；Described ZigBee RF transceiver is connected with described radio-frequency (RF) power amplification chip by described gate-controlled switch circuit；Described ZigBee RF transceiver includes PIFA antenna；Digital signal is by described PIFA antenna transmission to described data receipt unit；Described data transmission unit, will be set to the data of " key "-" value " form, send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, the data value that " value " collects for data acquisition unit described previously；
Described first power control unit includes charge management circuit, mu balanced circuit, low pressure instruction and under-voltage protecting circuit, can equipment short time power down situation be responded in time；Described first power control unit includes rechargeable lithium battary; when described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery；
The difference of described second source control unit and described first power control unit is only, and described second source control unit is that described ZigBee data gateway, described data receipt unit are powered；
Described ZigBee data gateway, including main control chip, the second data storage card, the data received are respectively sent to the second data storage card and main control chip by described ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can " key "-" value " data be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net；
Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
2. a kind of extendible ZigBee data transmission set according to claim 1, it is characterised in that: described data acquisition microcontroller includes 3.3V power circuit, reset circuit, JTAG debug circuit.
3. a kind of extendible ZigBee data transmission set according to claim 1, it is characterised in that: the radio-frequency (RF) power amplification chip of described data transmission unit is provided with chip protection circuit.
4. the extendible ZigBee data transmission set of according to claims 1 to 3 any one, it is characterized in that: the extendible ZigBee data transmission set of described one also includes cloud computing platform, the extendible ZigBee data transmission set of described one is connected with 3G/4G/5G network communication, in real time data are uploaded to described cloud computing platform, and receiving the instruction that described cloud computing platform sends, the data received are stored, calculate, analyze and send instruction according to data result by described cloud computing platform.
5. the extendible ZigBee data transmission set of according to claims 1 to 3 any one, it is characterized in that: several extendible ZigBee data transmission sets described have compatible protocol stack, between described extendible ZigBee data transmission set MANET and formed arrive data gateway complete path.
6. the method for an extendible ZigBee data transmission set, it is characterised in that: the method for described extendible ZigBee data transmission set is based on any one extendible ZigBee data transmission set described in Claims 1 to 5；Concrete grammar is as follows:
The acquisition terminal of data acquisition unit gathers the initial data of various parameters in Internet of things system, and it is converted into analog voltage signal, pass to by the data acquisition microcontroller of 16 MSP430 single-chip microcomputers again, analog voltage signal is converted into digital signal by described data acquisition microcontroller, is sent to the first storage card and Date Conversion Unit；Described first data storage card can prevent loss of data during equipment operation exception, the data in load store card automatic after unit exception is restarted, it is ensured that the integrity of initial data；
The data received are converted into the digital signal of unified key assignments form by the data converter of Date Conversion Unit；Primary operational is completed by ZigBee data metadata storehouse, and the data of ZigBee device transmission are represented meaning, data form, data Explanation way and a data number association by described ZigBee data metadata storehouse, are " key " by this number definition；Add fashionable when there being the new not ZigBee equipment in critical field, described ZigBee data metadata storehouse is managed by data gateway platform software, the data that " key " and " key " associate be can manually add and meaning, data form, data Explanation way information represented, and the form of ZigBee device data satisfied " key "-" value " of transmission form is set, it is achieved the extensibility of total system；For ensureing the versatility of data base, described ZigBee data metadata storehouse is formulated jointly by each big ZigBee equipment manufacturer；
Data transmission unit, will be set to the data mode of " key "-" value ", send in a wireless form；Wherein " key " is the data number being associated with described ZigBee data metadata storehouse addressed above, and " value " is the data value that the described data acquisition unit addressed above collects；
Equipment short time power down situation is responded by the first power control unit in time；When described first power control unit external direct current power supply; while described data acquisition unit, described data transmission unit, described Date Conversion Unit are powered by described DC source by mu balanced circuit; also to described lithium cell charging; and when external power supply power-off; low pressure instruction and under-voltage protecting circuit work, directly powered to described data acquisition unit, described data transmission unit, described Date Conversion Unit by mu balanced circuit by lithium battery；
Second source control unit is that described ZigBee data gateway, described data receipt unit are powered, and its method of work is identical with the first power control unit；
The data received are respectively sent to the second data storage card and main control chip by ZigBee data gateway, described main control chip is added with ZigBee data metadata storehouse, can the data that the digital signal of key assignments form is formed be received and dispatched, the parsing of address between the conversion of IP(Internet Protocol) and net；Specifically, the described ZigBee data gateway being added with ZigBee data metadata storehouse, according to the data Explanation way corresponding to " key " of definition in metadatabase, understand " value " that send from ZigBee equipment, the comparison of " key " that receive-" value " data is understood and is reduced to the initial data that data acquisition unit gathers；Described data Explanation way, is the program, script or the executable file that write, or function library, source code or mathematical formulae；
Described data receipt unit, identical with the structure of described data transmission unit, difference is only for receiving the described data transmission unit digital signal with the key assignments form of wireless transmission.
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