CN101668357A - Multiband networking coordinator based on Zigbee technology - Google Patents

Multiband networking coordinator based on Zigbee technology Download PDF

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Publication number
CN101668357A
CN101668357A CN200910190300A CN200910190300A CN101668357A CN 101668357 A CN101668357 A CN 101668357A CN 200910190300 A CN200910190300 A CN 200910190300A CN 200910190300 A CN200910190300 A CN 200910190300A CN 101668357 A CN101668357 A CN 101668357A
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China
Prior art keywords
zigbee
chip
data
arm
coordinator based
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CN200910190300A
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Chinese (zh)
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薛泉
王松
王先峰
项军
刘家良
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City University of Hong Kong CityU
Shenzhen Research Institute of CityU
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Shenzhen Research Institute of CityU
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Priority to CN200910190300A priority Critical patent/CN101668357A/en
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Abstract

The invention provides a multiband networking coordinator based on Zigbee technology, which comprises a plurality of Zigbee chips and an ARM chip, wherein the Zigbee chips are connected with the ARM chip; the Zigbee chips respectively work on different frequency bands, complete the establishment of a Zigbee network on the different frequency bands, receives information from different networks, andthen processes the information on different Zigbee chips; and the collected data and command are transferred to the ARM chip for processing. The multiband networking coordinator based on the Zigbee technology can simultaneously work on two or more frequency bands, the system can simultaneously establish two or more Zigbee wireless networks, and each network works on the different frequency bands,thus having small mutual interference.

Description

A kind of multiband networking coordinator based on the Zigbee technology
Technical field
The present invention relates to the wireless sensor network field, particularly a kind of multiband networking coordinator based on the Zigbee technology.
Background technology
The Zigbee technology is a kind of new technology of disposing wireless sensor network.It is the wireless communication technology of a kind of short distance, low rate low-power consumption, is a kind of technology motion between radio mark technology and BlueTooth.Zigbee one etymology when finding the pollen position, is informed companion by jumping the dancing of ZigZag shape from hive, reaches the purpose of exchange message, calls a kind of short-range wireless networks communication technology of being absorbed in low-power consumption, low cost, low complex degree, low rate whereby.
Zigbee technology and transducer are one of wireless communication technology at present with fastest developing speed in conjunction with the sensor network technique of forming, wireless sensor network technology based on the Zigbee technology has a bit a lot: the networking small investment, be applicable to various special operational environments, such as battlefield or depopulated zone.Network has self-organization, and working node can and can work long hours with powered battery.
One of developing direction of physical data collection after adopting the Zigbee technology to set up collection that wireless sensor network carries out physical data to be, objective world cognition technology.
The telegon of Zigbee chip design is operated on the frequency range more, and whole network using CSMA/CA mode is used channel, and when number of nodes increased in the network, the inter-node communication conflict will strengthen.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of multiband networking coordinator based on the Zigbee technology that can work in two or more frequency ranges simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of multiband networking coordinator based on the Zigbee technology is provided, it comprises a plurality of Zigbee chips and ARM chip, described Zigbee chip links to each other with the ARM chip, described Zigbee chip works on the different frequency range respectively, and on different frequency range, finish the establishment of Zigbee network, after receiving information from heterogeneous networks, handle on different Zigbee chips respectively, the processing of ARM chip is mail in data that collect and order.
The scheme that the present invention solves further technical problem is: carry protocol stack on the described Zigbee chip, finish basic Zgbee radio communication function, information and command process are then finished by the ARM chip.
The scheme that the present invention solves further technical problem is: described Zigbee chip comprises the microprocessor of a Zigbee radio modem and a low-power consumption.
The scheme that the present invention solves further technical problem is: described Zigbee chip is connected by UART with the ARM chip.
The scheme that the present invention solves further technical problem is: it further comprises external memory storage, liquid crystal display screen, power module, clock, button, LED and antenna system, described external memory storage, liquid crystal display screen, power module, clock, button and LED are by linking to each other with this ARM chip, and described antenna system links to each other with the Zigbee radio modem.
The scheme that the present invention solves further technical problem is: described external memory storage is mainly used in the storage of data, and described power module provides the work electricity consumption of system.
The scheme that the present invention solves further technical problem is: described antenna system is the transmit receive antenna part, mainly is to be responsible for finishing transmitting and receiving of radiofrequency signal.
The scheme that the present invention solves further technical problem is: the Data Receiving handling process of this telegon may further comprise the steps: after antenna system received radiofrequency signal, input Zigbee chip was handled; The filtering of signal process, ADC that Modem in the Zigbee chip sends antenna system here, the reception RAM of Zigbee chip is sent in a series of processing such as demodulation, CRC check back by the SPI interface; The microprocessor MCU of Zigbee chip is responsible for reading the data in the RAM, and sends to the upper-layer protocol stack; Upper-layer protocol can be as required sending to the ARM chip after the data encapsulation; The ARM chip can send to its upper-layer user's handling procedure as required or forward the data to the network that is in other frequency range after receiving data from the Zigbee chip.
The scheme that the present invention solves further technical problem is: the data transmission process flow steps: 1.ARM upper-layer user program sends data to the ARM bottom; 2.ARM bottom sends to the Zigbee chip by the UART mouth after data encapsulation; 3. after the data of described Zigbee chip reception from the ARM chip,, data transmission is gone out by Modem through after the microprocessor processes of itself; 4.Modem data through ovennodulation, are encoded, and D/A sends to antenna system behind the power amplifier; 5. antenna system is received the radiofrequency signal that the Zigbee chip is sent, and goes out by aerial radiation.
The scheme that the present invention solves further technical problem is: described Zigbee chip is realized the communication of inter-network real time bidirectional by the co-ordination of ARM chip.
Compared to prior art, multiband networking coordinator based on the Zigbee technology of the present invention can work in two or more frequency ranges simultaneously, two or more Zigbee wireless networks can be set up simultaneously in system, each network work is on different frequency ranges, the phase mutual interference is very little, substantially realized frequency division effect physically, the benefit of doing like this is to have enlarged one times or several times in the operable network capacity in same place.For the very big benefit that is deployed with of highdensity sensor network, the possibility that the transmission data clash in the network has reduced, and can improve network performance and throughput of system greatly.
Description of drawings
Fig. 1 is the structural representation of the multiband networking coordinator based on the Zigbee technology of the present invention.
Fig. 2 is the communication flow diagram of the multiband networking coordinator based on the Zigbee technology of the present invention.
Fig. 3 is the frame format schematic diagram of the Zigbee chip of the multiband networking coordinator based on the Zigbee technology of the present invention to the ARM chip.
Fig. 4 is the frame format schematic diagram of the Zigbee chip that arrives of the ARM chip of the multiband networking coordinator based on the Zigbee technology of the present invention.
Embodiment
Following content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
As shown in Figure 1, the invention provides a kind of multiband networking coordinator based on the Zigbee technology (coordinator), it comprises a plurality of Zigbee chips, ARM chip, external memory storage, liquid crystal display screen, power module, clock, button, LED and antenna system.Described Zigbee chip links to each other with the ARM chip, and described external memory storage, liquid crystal display screen, power module, clock, button and LED are by linking to each other with this ARM chip.
Wherein said Zigbee chip comprises the microprocessor (MCU) of a Zigbee radio modem (modem) and a low-power consumption, described Zigbee chip functions mainly is the networking of finishing the Zigbee network, radio communication, processes sensor module data etc., (Universal Asynchronous Receiver/Transmitter UART) connects by general asynchronous receiving-transmitting transmitter with the ARM chip.
Described ARM chip mainly is to be in charge of this Zigbee chip and some senior user programs of operation.
Described external memory storage is mainly used in the backup of data.
Described power module provides the work electricity consumption of system.
Described antenna system is the transmit receive antenna part, mainly is to be responsible for finishing transmitting and receiving of radiofrequency signal.
During use, each Zigbee chip all couples together with the ARM chip, other peripheral modules couple together by bus and ARM, not through path between each Zigbee chip, data finish processing by ARM alternately, the data that send to Zigbee chip 2 such as Zigbee chip 1 send to ARM earlier, after receiving local RAM by ARM, behind the Zigbee chip of looking for according to the transmission address information 2, ARM arrives Zigbee chip 2 to the data handle again, ARM safeguards the information table of all Zibee chips of node on local storage Flash, each Zigbee chip has unique ID sign.
In the present embodiment, that described Zigbee chip is selected for use is Freescale MC13213, and that described ARM chip is selected for use is SAMSUNG ARM7.
As shown in Figure 2, the course of work of the multiband networking coordinator based on the Zigbee technology of the present invention is as follows: after node powered up startup, the ARM chip is the initialization system process at first, and the Zigbee chip is finished the initialization of communication protocol stack simultaneously; After initial work was finished, ARM chip all Zigbee chips on node sent " networking " order, and the Zigbee chip begins building network after receiving " networking " order; The Zigbee chip is determined the working frequency range of oneself earlier when networking, this frequency range can be distributed by the ARM chip, can determine unique channel of working according to the scan channel result by the Zigbee chip, the working frequency range of the Zigbee network of each establishment does not all repeat yet, and disturbs minimum thereby reach.After the success of Zigbee chipset establishing network, send out building network successful respond frame to ARM.After ARM receives the acknowledgement frame of building network success, determine the essential information of the network that each Zigbee chip is set up.After the networking success, each Zigbee chip can wait for that new node adds this network, function according to each network, the sensor node of different business function can select to add different business networks, initiate network node information is in time sent to the ARM chip, and each newly adds the details of node by the system maintenance of ARM chip.
Add network at certain effective sensor node, the ARM chip is promptly sent out data acquisition command, notify different business network image data, the Zigbee chip is the i.e. transmission of sensor node in network data acquisition command after receiving data acquisition command, sensor node promptly begins data acquisition behind the data acquisition command of receiving network center's node, and data are sent to the Zigbee chip by certain sample frequency, the Zibee chip is after receiving sampled data, send to the ARM chip after the encapsulation process, the system user program can obtain sampled data in real time.
The Data Receiving handling process may further comprise the steps:
1) after antenna system received radiofrequency signal, input Zigbee chip was handled;
2) the signal that antenna system is sent here of the Modem in the Zigbee chip is through filtering, ADC, and demodulation, CRC check etc. are a series of handles the Zigbee chip is sent in the back by the SPI interface reception RAM;
3) the microprocessor MCU of Zigbee chip is responsible for reading the data in the RAM, and sends to the upper-layer protocol stack;
4) upper-layer protocol can be as required sending to the ARM chip after the data encapsulation;
5) after the ARM chip receives data from the Zigbee chip, can send to its upper-layer user's handling procedure as required or forward the data to the network that is in other frequency range.
The data transmission process flow steps:
1.ARM upper-layer user's program sends data to the ARM bottom;
2.ARM bottom sends to the Zigbee chip by the UART mouth after data encapsulation;
3. after the data of described Zigbee chip reception from the ARM chip,, data transmission is gone out by Modem through after the microprocessor processes of itself;
4.Modem data through ovennodulation, are encoded, and D/A sends to antenna system behind the power amplifier;
5. antenna system is received the radiofrequency signal that the Zigbee chip is sent, and goes out by aerial radiation.
Described Zigbee chip is realized the communication of inter-network real time bidirectional, the form of its transmission frame such as Fig. 3 and shown in Figure 4 by the co-ordination of ARM chip.
Multiband networking coordinator based on the Zigbee technology of the present invention can work in two or more frequency ranges simultaneously, two or more Zigbee wireless networks can be set up simultaneously in system, each network work is on different frequency ranges, the phase mutual interference is very little, substantially realized frequency division effect physically, the benefit of doing like this is to have enlarged one times or several times in the operable network capacity in same place.For the very big benefit that is deployed with of highdensity sensor network, the possibility that the transmission data clash in the network has reduced, and can improve network performance and throughput of system greatly.

Claims (10)

1. multiband networking coordinator based on the Zigbee technology, it is characterized in that: it comprises a plurality of Zigbee chips and ARM chip, described Zigbee chip links to each other with the ARM chip, described Zigbee chip works on the different frequency range respectively, and on different frequency range, finish the establishment of Zigbee network, after receiving the information from heterogeneous networks, handle on different Zigbee chips respectively, the processing of ARM chip is mail in data that collect and order.
2. the multiband networking coordinator based on the Zigbee technology according to claim 1 is characterized in that: carry protocol stack on the described Zigbee chip, finish basic Zgbee radio communication function, information and command process are then finished by the ARM chip.
3. the multiband networking coordinator based on the Zigbee technology according to claim 1 is characterized in that: described Zigbee chip comprises the microprocessor of a Zigbee radio modem and a low-power consumption.
4. the multiband networking coordinator based on the Zigbee technology according to claim 3 is characterized in that: described Zigbee chip is connected by UART with the ARM chip.
5. the multiband networking coordinator based on the Zigbee technology according to claim 3, it is characterized in that: it further comprises external memory storage, liquid crystal display screen, power module, clock, button, LED and antenna system, described external memory storage, liquid crystal display screen, power module, clock, button and LED are by linking to each other with this ARM chip, and described antenna system links to each other with the Zigbee radio modem.
6. the multiband networking coordinator based on the Zigbee technology according to claim 5 is characterized in that: described external memory storage is mainly used in the storage of data, and described power module provides the work electricity consumption of system.
7. the multiband networking coordinator based on the Zigbee technology according to claim 5 is characterized in that: described antenna system is the transmit receive antenna part, mainly is to be responsible for finishing transmitting and receiving of radiofrequency signal.
8. the multiband networking coordinator based on the Zigbee technology according to claim 5 is characterized in that: the Data Receiving handling process of this telegon may further comprise the steps: after antenna system received radiofrequency signal, input Zigbee chip was handled; The filtering of signal process, ADC that Modem in the Zigbee chip sends antenna system here, the reception RAM of Zigbee chip is sent in a series of processing such as demodulation, CRC check back by the SPI interface; The microprocessor MCU of Zigbee chip is responsible for reading the data in the RAM, and sends to the upper-layer protocol stack; Upper-layer protocol can be as required sending to the ARM chip after the data encapsulation; The ARM chip can send to its upper-layer user's handling procedure as required or forward the data to the network that is in other frequency range after receiving data from the Zigbee chip.
9. the multiband networking coordinator based on the Zigbee technology according to claim 8 is characterized in that: the data transmission process flow steps: ARM upper-layer user program sends data to the ARM bottom; The ARM bottom sends to the Zigbee chip by the UART mouth after data encapsulation; After the data of described Zigbee chip reception from the ARM chip,, data transmission is gone out by Modem through after the microprocessor processes of itself; Modem through ovennodulation, encodes data, and D/A sends to antenna system behind the power amplifier; Antenna system is received the radiofrequency signal that the Zigbee chip is sent, and goes out by aerial radiation.
10. the multiband networking coordinator based on the Zigbee technology according to claim 9 is characterized in that: described Zigbee chip is realized the communication of inter-network real time bidirectional by the co-ordination of ARM chip.
CN200910190300A 2009-09-25 2009-09-25 Multiband networking coordinator based on Zigbee technology Pending CN101668357A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895963A (en) * 2010-07-16 2010-11-24 华为技术有限公司 Method and device for network access of equipment in wireless sensor network
CN102202430A (en) * 2011-05-11 2011-09-28 江汉大学 Zigbee wireless gateway and data transmission method thereof
CN103557890A (en) * 2013-11-15 2014-02-05 中国科学院上海微系统与信息技术研究所 Multi-layer multi-collection-point hoisting machine structure health monitoring system
CN103780320A (en) * 2014-01-23 2014-05-07 重庆邮电大学 Multi-band data detector based on FPGA
CN104684066A (en) * 2013-11-27 2015-06-03 贵州航天天马机电科技有限公司 Mechanical equipment wireless networking system
CN104955173A (en) * 2015-07-07 2015-09-30 无锡集敏科技有限公司 ZIGBEE wireless networking method
CN105118280A (en) * 2015-08-25 2015-12-02 国网北京市电力公司 Method, device and system for reporting data
CN106355897A (en) * 2016-10-20 2017-01-25 无锡华赛伟业传感信息科技有限公司 Speed measuring method of geomagnetic vehicle detector
CN106856590A (en) * 2017-01-04 2017-06-16 浙江大学 A kind of parallel real-time radio warehouse logisticses communication system of multiband
CN106993331A (en) * 2017-05-11 2017-07-28 深圳合优科技有限公司 A kind of sensor group network method and use this method sensor network
CN110006542A (en) * 2019-04-09 2019-07-12 保定市智能电脑有限公司 Wireless temperature measurement system based on double wireless networks
CN110868457A (en) * 2019-10-30 2020-03-06 广州市弘宇科技有限公司 Communication node and multi-band multi-protocol group monitoring network system
CN110958737A (en) * 2019-12-28 2020-04-03 上海唯视锐光电技术有限公司 Wireless inspection system and inspection method for public lighting lamp

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101895963A (en) * 2010-07-16 2010-11-24 华为技术有限公司 Method and device for network access of equipment in wireless sensor network
CN102202430A (en) * 2011-05-11 2011-09-28 江汉大学 Zigbee wireless gateway and data transmission method thereof
CN103557890A (en) * 2013-11-15 2014-02-05 中国科学院上海微系统与信息技术研究所 Multi-layer multi-collection-point hoisting machine structure health monitoring system
CN104684066A (en) * 2013-11-27 2015-06-03 贵州航天天马机电科技有限公司 Mechanical equipment wireless networking system
CN103780320A (en) * 2014-01-23 2014-05-07 重庆邮电大学 Multi-band data detector based on FPGA
CN104955173A (en) * 2015-07-07 2015-09-30 无锡集敏科技有限公司 ZIGBEE wireless networking method
CN105118280A (en) * 2015-08-25 2015-12-02 国网北京市电力公司 Method, device and system for reporting data
CN106355897A (en) * 2016-10-20 2017-01-25 无锡华赛伟业传感信息科技有限公司 Speed measuring method of geomagnetic vehicle detector
CN106856590A (en) * 2017-01-04 2017-06-16 浙江大学 A kind of parallel real-time radio warehouse logisticses communication system of multiband
CN106856590B (en) * 2017-01-04 2020-01-14 浙江大学 Multi-frequency-band parallel real-time wireless warehouse logistics communication system
CN106993331A (en) * 2017-05-11 2017-07-28 深圳合优科技有限公司 A kind of sensor group network method and use this method sensor network
CN110006542A (en) * 2019-04-09 2019-07-12 保定市智能电脑有限公司 Wireless temperature measurement system based on double wireless networks
CN110868457A (en) * 2019-10-30 2020-03-06 广州市弘宇科技有限公司 Communication node and multi-band multi-protocol group monitoring network system
CN110958737A (en) * 2019-12-28 2020-04-03 上海唯视锐光电技术有限公司 Wireless inspection system and inspection method for public lighting lamp

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Application publication date: 20100310