CN103259547A - Receiving device based on Zigbee technology - Google Patents
Receiving device based on Zigbee technology Download PDFInfo
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- CN103259547A CN103259547A CN201310125265XA CN201310125265A CN103259547A CN 103259547 A CN103259547 A CN 103259547A CN 201310125265X A CN201310125265X A CN 201310125265XA CN 201310125265 A CN201310125265 A CN 201310125265A CN 103259547 A CN103259547 A CN 103259547A
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- zigbee technology
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Abstract
The invention provides a receiving device based on a Zigbee technology. A receiving terminal comprises a radio frequency module and a Zigbee baseband processing module, wherein the radio frequency module is used for receiving wireless signals, and the Zigbee baseband processing module is used for processing data output by the radio frequency module. The radio frequency module comprises at least two antenna units. The Zigbee baseband processing module comprises a combiner which combines data received by the antenna units. The receiving device based on the Zigbee technology is applicable to the Internet of things based on the Zigbee technology, can collect data through multiple information channels, ensures reliability and integrity of data receiving, achieves working functions of the receiving device based on the Zigbee technology, can improve data-receiving capacity and anti-interference capacity of the receiving terminal to a large extent under the situation that power consumption of the Internet of things nodes is identical so as to improve reliability and stability of the Internet of things comprising the receiving device based on the Zigbee technology.
Description
Technical field
The invention belongs to the Internet of Things field, be specifically related to a kind of receiving system based on the Zigbee technology that is applied to Internet of Things.
Background technology
Zigbee (short distance, lower powered wireless communication technology) be a kind of emerging closely, low complex degree, low-power consumption, low message transmission rate, radio network technique cheaply, be widely used in the Internet of Things field according to its characteristics, become the main network struction mode of Internet of Things, can be between thousands of small Internet of Things nodes coordinating communication mutually, owing to can intercom mutually between each node, therefore can form many transmission paths, ensure that data can be transferred to data center.
Be mainly used in the wireless signal of receiver networked node output based on the receiving system of Zigbee technology, existing Zigbee technology adopts the mode of single channel output more, again by radio-frequency module and amplifier carry out the transmission of signal and simply control circuit form.When this receiving terminal makes up network, the communication of receiving terminal is subject to the data transmission capabilities of receiving terminal, can cause the appearance of situation such as loss of data, if strengthen the transmitting power of Internet of Things node, then can cause the huge use of energy, and also be limited in the improvement of receiving terminal aspect of performance.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of receiving system based on the Zigbee technology, should reduce data losing in receiving course based on the receiving system of the Zigbee technology mode by many data receiving liness, the data that receive the output of Internet of Things node that can be comparatively complete, realized the raising of receiving terminal link performance, to achieve these goals, the present invention is by the following technical solutions:
A kind of receiving system based on the Zigbee technology comprises for the radio-frequency module of reception wireless signal and the Zigbee baseband processing module that the data of described radio-frequency module output are handled; Described radio-frequency module comprises at least two antenna elements, and described Zigbee baseband processing module comprises the mixer of the data merging that described antenna element is received.
Further, described Zigbee baseband processing module is SOC.
Further, described Zigbee baseband processing module comprises A/D converter, demodulator, the decoder reconciliation frequency multiplier that connects successively, and described mixer is connected with the output of described solution frequency multiplier.
Further, described A/D converter is identical with the number of described antenna element.
Further, described Zigbee baseband processing module also comprises be used to the memory of depositing data after separating the frequency multiplier processing.
Further, described memory also is connected with the output of described A/D converter.
Further, described radio-frequency module also comprises power amplifier, and the signal of described antenna element output is exported to described Zigbee baseband processing module after described power amplifier amplifies.
Further, described power amplifier is identical with the number of described antenna element.
Further, also comprise D/A converter, described D/A converter is connected with the output of described mixer.
Further, also comprise controller, described controller is connected with the output of described D/A converter.
Receiving system based on the Zigbee technology of the present invention can be applied to the Internet of Things network based on the Zigbee technology, can carry out the collection of data by a plurality of antenna elements and channel, reliability and integrality that data receive have been guaranteed, realized the work functions based on the receiving system of Zigbee technology, under the same power consumption of Internet of Things node, can improve data receiving ability, the antijamming capability of receiving terminal significantly, and then improve and comprise that this is based on the reliability and stability of the Internet of Things network of the receiving system of Zigbee technology.
Description of drawings
Fig. 1 is the module map of a kind of receiving system execution mode 1 based on the Zigbee technology of the present invention;
Fig. 2 is the module map of a kind of receiving system execution mode 2 based on the Zigbee technology of the present invention.
Embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 1, be depicted as the module map of a kind of receiving system execution mode 1 based on the Zigbee technology of the present invention, should comprise radio-frequency module, Zigbee baseband processing module and D/A converter based on receiving system of Zigbee technology.Wherein, radio-frequency module comprise a plurality of antenna elements and with the same number of power amplifier of antenna element, antenna element receives wireless signal, and wireless signal is converted to current signal exports to power amplifier and carry out power amplification, the number of antenna element can be 2,3,4 or more, power amplifier is corresponding setting with antenna element then, in fact, processing such as LNA to current signal, intermediate frequency amplification, high frequency amplification before power amplification, have also been comprised, these belong to the customary means of existing radio-frequency module, do not do at this and give unnecessary details.The Zigbee baseband processing module comprises A/D converter, demodulator, decoder, separate frequency multiplier and mixer, A/D converter has a plurality of, its number is identical with the antenna element number, this A/D converter is converted to digital signal with the current signal of radio-frequency module output, and export to demodulator, demodulator transfers the signal carrier of A/D converter output to separate with modulation signal, obtain modulation signal and this signal is exported to decoder, decoder is decoded according to coding rule to the signal of demodulator demodulation and is exported to the solution frequency multiplier, separating frequency multiplier uses matched filter that signal is carried out filtering, wideband spread-spectrum signal is separated spread spectrum, remove the sequence code of high code check, output it to mixer then, mixer carries out integrated treatment to the signal of separating behind the spread spectrum, obtains final initial data.D/A converter is connected with the output of mixer, the data of mixer output are converted to current signal output, thereby finish the processing of the wireless signal of antenna element reception, the current signal of output can be transferred to the data center of Internet of Things network or control centre etc., carries out the data storage or generates instruction.
Referring to Fig. 2, be depicted as the module map of a kind of receiving system execution mode 2 based on the Zigbee technology of the present invention, should compare with execution mode 1 based on the receiving system of Zigbee technology, the main distinction is Zigbee baseband processing module and the controller that increases newly, wherein the Zigbee baseband processing module has then further comprised memory, this memory can share with the memory that carries in the Zigbee baseband processing module, this memory is used for the signal that the storage A/D converter is conciliate frequency multiplier output, the signal of a plurality of A/D converter outputs is stored in the memory earlier, transfer the signal of each A/D converter output then one by one, pass through demodulator successively, decoder, separating the frequency multiplier processing is stored in the memory, by the time after the signal of each A/D converter output disposes, the signal of the A/D converter output after from memory, transferring all again and handling, carry out integrated treatment through mixer again, obtain final initial data.D/A converter is connected with the output of mixer, the data of mixer output are converted to current signal output, finish the processing of the wireless signal of antenna element reception, the current signal of output, this current signal further is transferred to control end and forms instruction, carries out corresponding actions by control end according to instruction.
In concrete enforcement, for example, control end connects LED lamp power management module, antenna element receives the wireless signal that carries instruction that control centre sends, this wireless signal is reduced to command signal through Zigbee baseband processing module, D/A converter after handling, and sends to control end, and control end is according to this command signal control power management module, and then finish parameters such as LED lamp brightness are adjusted, thereby realization is to the control of LED lamp.
Among the present invention, receiving system based on the Zigbee technology adopts many antennas, many signalling channels that wireless signal is received, handles, reliability and integrality that data receive have been guaranteed, can improve data receiving ability, the antijamming capability of receiving terminal significantly not improving under the Internet of Things node transmitting power condition, and then improve and comprise that this is based on the reliability and stability of the Internet of Things network of the receiving system of Zigbee technology.
In the present invention, the Zigbee baseband processing module can adopt the SOC SOC (system on a chip), also can adopt MCU processing unit etc.
The above only is the preferred embodiments of the present invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. the receiving system based on the Zigbee technology is characterized in that, comprises for the radio-frequency module of reception wireless signal and the Zigbee baseband processing module that the data of described radio-frequency module output are handled; Described radio-frequency module comprises at least two antenna elements, and described Zigbee baseband processing module comprises the mixer of the data merging that described antenna element is received.
2. the receiving system based on the Zigbee technology according to claim 1 is characterized in that, described Zigbee baseband processing module is SOC.
3. the receiving system based on the Zigbee technology according to claim 1, it is characterized in that, described Zigbee baseband processing module comprises A/D converter, demodulator, the decoder reconciliation frequency multiplier that connects successively, and described mixer is connected with the output of described solution frequency multiplier.
4. the receiving system based on the Zigbee technology according to claim 3 is characterized in that, described A/D converter is identical with the number of described antenna element.
5. according to claim 3 or 4 described receiving systems based on the Zigbee technology, it is characterized in that described Zigbee baseband processing module also comprises be used to the memory of depositing data after separating the frequency multiplier processing.
6. the receiving system based on the Zigbee technology according to claim 5 is characterized in that, described memory is connected with the output of described A/D converter.
7. the receiving system based on the Zigbee technology according to claim 1, it is characterized in that, described radio-frequency module also comprises power amplifier, and the signal of described antenna element output is exported to described Zigbee baseband processing module after described power amplifier amplifies.
8. the receiving system based on the Zigbee technology according to claim 7 is characterized in that, described power amplifier is identical with the number of described antenna element.
9. the receiving system based on the Zigbee technology according to claim 1 is characterized in that, also comprises D/A converter, and described D/A converter is connected with the output of described mixer.
10. the receiving system based on the Zigbee technology according to claim 9 is characterized in that, also comprises controller, and described controller is connected with the output of described D/A converter.
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| CN201310125265XA CN103259547A (en) | 2013-03-27 | 2013-03-27 | Receiving device based on Zigbee technology |
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| CN201310125265XA CN103259547A (en) | 2013-03-27 | 2013-03-27 | Receiving device based on Zigbee technology |
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| CN1592989A (en) * | 2001-11-29 | 2005-03-09 | 美商内数位科技公司 | Efficient multiple input multiple output system for multi-path fading channels |
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| CN101369836A (en) * | 2007-08-14 | 2009-02-18 | 华为技术有限公司 | Wireless signal transmitting/receiving method and transmitting/receiving device |
| CN102237920A (en) * | 2010-04-28 | 2011-11-09 | 英特尔公司 | Systems and methods for uplink multi-user multiple input multiple output (MU MIMO) medium access and error recovery |
| CN102256380A (en) * | 2010-05-18 | 2011-11-23 | 西安电子科技大学 | Novel wireless multiple input multiple output (MIMO) sensor node |
| US8068799B1 (en) * | 2008-03-11 | 2011-11-29 | Recon Dynamics, Llc | Radio frequency receiver systems that are configured to achieve high dynamic range |
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2013
- 2013-03-27 CN CN201310125265XA patent/CN103259547A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1592989A (en) * | 2001-11-29 | 2005-03-09 | 美商内数位科技公司 | Efficient multiple input multiple output system for multi-path fading channels |
| CN1647407A (en) * | 2002-04-19 | 2005-07-27 | 诺基亚有限公司 | Orthogonalized spatial multiplexing for wireless communication |
| CN1455524A (en) * | 2003-03-17 | 2003-11-12 | 西南交通大学 | Space parallel interleaving method for multi-emitting-multi-receiving (MIMO) antenna array system |
| US20050031062A1 (en) * | 2003-08-07 | 2005-02-10 | Samsung Electronics Co., Ltd. | Method and apparatus for determining a shuffling pattern based on a minimum signal to noise ratio in a double space-time transmit diversity system |
| CN1722723A (en) * | 2004-02-19 | 2006-01-18 | 美国博通公司 | MIMO WLAN communication |
| CN101369836A (en) * | 2007-08-14 | 2009-02-18 | 华为技术有限公司 | Wireless signal transmitting/receiving method and transmitting/receiving device |
| US8068799B1 (en) * | 2008-03-11 | 2011-11-29 | Recon Dynamics, Llc | Radio frequency receiver systems that are configured to achieve high dynamic range |
| CN102237920A (en) * | 2010-04-28 | 2011-11-09 | 英特尔公司 | Systems and methods for uplink multi-user multiple input multiple output (MU MIMO) medium access and error recovery |
| CN102256380A (en) * | 2010-05-18 | 2011-11-23 | 西安电子科技大学 | Novel wireless multiple input multiple output (MIMO) sensor node |
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Application publication date: 20130821 |