CN102421205A - Zigbee network coordinator - Google Patents
Zigbee network coordinator Download PDFInfo
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- CN102421205A CN102421205A CN2011104112604A CN201110411260A CN102421205A CN 102421205 A CN102421205 A CN 102421205A CN 2011104112604 A CN2011104112604 A CN 2011104112604A CN 201110411260 A CN201110411260 A CN 201110411260A CN 102421205 A CN102421205 A CN 102421205A
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Abstract
The invention discloses a zigbee network coordinator, which comprises a control end (1) and two or more zigbee transceivers (2), wherein the control end (1) is used for generating and explaining a data packet, and exchanging data with the zigbee transceivers (2); the zigbee transceivers (2) are used for receiving and transmitting the data of a media access control (MAC) layer and a physical layer and comprise a default transceiver (21) and one or more candidate transceivers (22); and the zigbee transceivers (2) are connected to the control end (1) in a wired/wireless mode or controlled at the control end (1). By adoption of the zigbee network coordinator, the problem of single-point fault of a zigbee network can be effectively solved. The zigbee network coordinator is widely applicable to design of the zigbee network.
Description
Technical field
The invention belongs to network communications technology field, relate in particular to the reliability management of zigbee network, be specifically related to a kind of zigbee network coordinator.
Background technology
Zigbee; Be translated in China " purple honeybee "; It is a kind of defined physical layer of the IEEE of depending on 802.15.4 standard and MAC (medium access control) layer protocol; By network layer and the application layer standard that zigbee alliance is formulated, be the wireless communication technology standard of a kind of short distance, low-power consumption.Have closely, the technical characterstic of low complex degree, low-power consumption, low rate, double-direction radio communication cheaply.Be mainly used in the application of carrying out transfer of data between the various electronic equipments that distance is short, low in energy consumption and transmission rate is not high and periodic data, intermittent data and the transmission of low reaction time data typically being arranged; Can be used for industry spot, the multiple application scenario that reliability and real-time are had relatively high expectations such as family and building automation control, intelligent grid management etc.
Existing zigbee regulation and stipulation a network have and only have a coordinator unit; When telegon breaks down; Because in general the trust management center of whole network is positioned at telegon inside; This can cause this zigbee network to open or to close, and can't add new equipment, more various problems such as new key.In other words, the zigbee telegon is the Single Point of Faliure source of a zigbee network, and the safe operation of whole zigbee network is caused great hidden danger.
Summary of the invention
In order to solve the Single Point of Faliure problem of existing zigbee network; The invention provides and a kind ofly strengthen the reliability of zigbee telegon, thereby avoid the telegon Single Point of Faliure to cause the unusual scheme of zigbee network work through hardware backup (redundancy) mechanism that receives software control.
Since the zigbee normalized definition zigbee network have and only have a telegon, under the precondition of not violating the zigbee protocol specification, we can't introduce the telegon of a backup from the logic aspect.Therefore in physics realization, we consider that backup (redundancy) mechanism on the hardware that receives software control strengthens the reliability of this telegon.
A kind of zigbee network coordinator comprises control end 1, zigbee transceiver 2, and control end 1 is responsible for the generation and the explanation of packet, and carries out exchanges data with zigbee transceiver 2; Zigbee transceiver 2 is accomplished the data transmit-receive work of MAC and physical layer, and the number of said zigbee transceiver 2 is more than 2 or 2, wherein comprises 1 acquiescence transceiver 21 and the candidate transceiver 22 more than 1 or 1; Said zigbee transceiver 2 connects or is controlled by control end 1 through the wire/wireless connected mode.
Aforesaid control end 1 can take following mode to realize in order to control zigbee transceiver 2.Be that control end 1 comprises scan module 11, excitation module 12, networking module 13, detection module 14, module 15, handover module 16, communication module 17 are set; Scan module 11 scanning and initialization zigbee transceivers 2; Excitation module 12 excites acquiescence transceiver 21 to be the current active transceiver; Networking module 13 is set up network and is preserved network parameter at control end 1; Detection module 14 detects the operating state of acquiescence transceiver 21; The network parameter that module 15 reading control 1 have preserved is set and is set to the current active transceiver, handover module 16 is closed the acquiescence transceiver 21 that has fault and is switched to candidate transceiver 22 under the instruction of detection module 14, and data are sent or received to communication module 17 from current movable transceiver.
So-called current active transceiver; Be meant the current zigbee transceiver that is in normal operating conditions; It with the present invention in unique control end 1 be in the linking state of operate as normal, both send data to control end 1, also receive data from control end 1; Make the enhancement mode telegon that constitutes by control end 1 and transceiver group 2 can be normally and the zigbee network service of being got in touch, guarantee that this zigbee network is unblocked.The current active transceiver generally is meant acquiescence transceiver 21; But when acquiescence transceiver 21 is in malfunction; When causing telegon and this zigbee network obstacles; Control end 1 can switch to candidate transceiver 22 to the current active transceiver automatically, and at this moment, candidate transceiver 22 just develops into the current active transceiver.The mechanism of its switching is: be provided with handover module 16 in the control end 1, it depends on the network address of the zigbee transceiver 2 that is kept in the control end 1, short address; Netkey; Network ID, network state parameters such as extended network ID are in conjunction with other module of control end 1; Like detection module 14, communication module 17 etc., thereby the operating state of accomplishing described zigbee transceiver 2 is switched.Because the network state parameter of zigbee transceiver 2 (is the above-mentioned network address; The short address; Netkey; Network ID, extended network ID etc.) by control end 1 storage and safeguard, so that other zigbee equipment that communicate with this control end 1 behind the switching activity transceiver can not notice that this zigbee telegon takes place before this is any unusual.
Above-mentioned zigbee transceiver 2 connects or is controlled by control end 1 through the wire/wireless connected mode.Its concrete connected mode is like USB; Serial port, various wire/wireless connected mode such as Ethernet interface mode, like this; Zigbee transceiver 2 connects or is controlled by control end 1; To accomplish the data-linkage of the two, again owing to have a current active transceiver all the time, so that whole zigbee remains is unimpeded.
Because technique scheme the invention has the beneficial effects as follows: 1, solve the Single Point of Faliure problem effectively.Through separating flimsy transceiver from control end, and in addition redundant, and the control end of this moment; Only be operated in the state of little electric current low-power consumption, reliability is high, like this; The present invention can improve the reliability of this zigbee telegon greatly, effectively solves the Single Point of Faliure problem of zigbee network; 2, movable transceiver switches rapid, level and smooth.Because the network state parameter of zigbee transceiver 2 (is the network address; The short address; Netkey; Network ID, extended network ID etc.) by control end 1 storage and safeguard, so that other zigbee equipment that communicate with this control end 1 behind the switching activity transceiver can not notice that this zigbee telegon takes place before this is any unusual.
Because above-mentioned beneficial effect, the present invention is widely used in the zigbee network design.
Description of drawings
Fig. 1 is a module diagram of the present invention;
Fig. 2 is the module diagram of control end 1 of the present invention.
Embodiment
Come further to set forth embodiment of the present invention below in conjunction with accompanying drawing.
As shown in Figure 1, a kind of zigbee network coordinator comprises control end 1 and 2 zigbee transceivers 2, and control end 1 is responsible for the generation and the explanation of packet, and carries out exchanges data with zigbee transceiver 2; Zigbee transceiver 2 is accomplished the data transmit-receive work of MAC and physical layer, comprises 1 acquiescence transceiver 21 and 1 candidate transceiver 22 in the zigbee transceiver 2; Zigbee transceiver 2 is controlled by control end 1 through the wireless connections mode.
Zigbee transceiver 2 exists as simple IEEE 802.15.4 transceiver, and its MAC Address is provided with by control end 1, and zigbee transceiver 2 itself is operated in stateless mode, and the relevant state machine of zigbee network is then safeguarded by control end 1.In case the current active transceiver occurs unusually like this, then control end 1 can activate the transceiver of holding state at once and pass through new transceiver transmitting and receiving data.Because network state machine and the network state parameter that is associated thereof are by the control end storage and safeguard, can not notice that this telegon takes place before this any unusual so switch other zigbee equipment that communicate with this telegon behind the transceiver.
As shown in Figure 2; Control end 1 comprises scan module 11, excitation module 12, networking module 13, detection module 14, module 15, handover module 16, communication module 17 is set, scan module 11 scanning and initialization zigbee transceivers 2, and excitation module 12 excites acquiescence transceiver 21 to be the current active transceiver; Networking module 13 is set up network and is preserved network parameter at control end 1; Detection module 14 detects the operating state of acquiescence transceiver 21, as it is in proper working order to detect its state, then gives tacit consent to transceiver 21 and still is the current active transceiver; As detect its state operation irregularity; Then handover module 16 is closed the acquiescence transceiver 21 that has fault and is switched to candidate transceiver 22 under the instruction of detection module 14, and at this moment, candidate transceiver 22 is the current active transceiver; The network parameter that module 15 reading control 1 have preserved is set and is set to the current active transceiver, data are sent or received to communication module 17 from current movable transceiver.So, whole zigbee has and only has a movable transceiver all the time, meets the zigbee standard; Movable transceiver and control end 1 carry out exchanges data; Make whole zigbee be in unimpeded state all the time, and this kind switching rapidly, smoothly, other zigbee equipment is not aware of unusually at all.Again owing to separate flimsy transceiver from control end; And in addition redundant, and the control end of this moment only is operated in the state of little electric current low-power consumption; Reliability is high; Like this, the present invention can improve the reliability of this zigbee telegon greatly, effectively solves the Single Point of Faliure problem of zigbee network.
Claims (4)
1. zigbee network coordinator is characterized in that: comprise control end (1), zigbee transceiver (2), described control end (1) is responsible for the generation and the explanation of packet, and carries out exchanges data with described zigbee transceiver (2); Described zigbee transceiver (2) is accomplished the data transmit-receive work of MAC and physical layer, and the number of said zigbee transceiver (2) is more than 2 or 2, wherein comprises 1 acquiescence transceiver (21) and the candidate transceiver (22) more than 1 or 1; Said zigbee transceiver (2) connects or is controlled by described control end (1) through the wire/wireless connected mode.
2. a kind of zigbee network coordinator according to claim 1; It is characterized in that: described control end (1) comprises scan module (11), excitation module (12), networking module (13), detection module (14), module (15), handover module (16), communication module (17) is set; Described scan module (11) scanning and the described zigbee transceiver of initialization (2); It is the current active transceiver that described excitation module (12) excites described acquiescence transceiver (21); Described networking module (13) is set up network and is preserved network parameter at described control end (1); Described detection module (14) detects the operating state of described acquiescence transceiver (21); The described module (15) that is provided with reads the network parameter that described control end (1) preserved and is set to the current active transceiver; Described handover module (16) is closed the acquiescence transceiver (21) that has fault and is switched to candidate transceiver (22) under the instruction of described detection module (14), data are sent or received to described communication module (17) from current movable transceiver.
3. a kind of zigbee network coordinator according to claim 1 is characterized in that: said zigbee transceiver (2) passes through USB, serial port, and various wire/wireless connected mode such as Ethernet interface mode connects or is controlled by described control end (1).
4. a kind of zigbee network coordinator according to claim 2; It is characterized in that: described handover module (16) depends on the network address of the zigbee transceiver (2) that is kept in the control end (1); The short address, netkey, network ID; Network state parameters such as extended network ID are switched with this operating state of accomplishing described zigbee transceiver (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104112604A CN102421205A (en) | 2011-12-09 | 2011-12-09 | Zigbee network coordinator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104112604A CN102421205A (en) | 2011-12-09 | 2011-12-09 | Zigbee network coordinator |
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| CN102421205A true CN102421205A (en) | 2012-04-18 |
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| CN2011104112604A Pending CN102421205A (en) | 2011-12-09 | 2011-12-09 | Zigbee network coordinator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103327652A (en) * | 2013-06-20 | 2013-09-25 | 航天东方红卫星有限公司 | Double radio station redundancy system of satellite-borne ZigBee network coordinator |
| CN105578519A (en) * | 2015-12-21 | 2016-05-11 | 联想(北京)有限公司 | Zigbee node upgrading method and control server |
| WO2018049552A1 (en) * | 2016-09-13 | 2018-03-22 | Thomson Licensing | Method and apparatus for controlling network sensors |
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| WO2004064371A2 (en) * | 2003-01-10 | 2004-07-29 | Adc Broadband Access Systems, Inc. | Increasing capacity in a cable modem termination system (cmts) with passive redundancy |
| CN101404845A (en) * | 2008-11-14 | 2009-04-08 | 中山大学 | Road illumination monitoring system based on ZigBee technology |
| CN101427518A (en) * | 2006-03-30 | 2009-05-06 | 英特尔公司 | Device, system and method of coordination among multiple transceivers |
| CN101841746A (en) * | 2010-04-14 | 2010-09-22 | 东南大学 | Wavelength division multiplexing passive optical network optical line terminal having shared protection function |
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2011
- 2011-12-09 CN CN2011104112604A patent/CN102421205A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030067869A1 (en) * | 2001-10-05 | 2003-04-10 | Adtran, Inc. | Integrated RF loopback test apparatus for redundant data radio transceiver system |
| WO2004064371A2 (en) * | 2003-01-10 | 2004-07-29 | Adc Broadband Access Systems, Inc. | Increasing capacity in a cable modem termination system (cmts) with passive redundancy |
| CN101427518A (en) * | 2006-03-30 | 2009-05-06 | 英特尔公司 | Device, system and method of coordination among multiple transceivers |
| CN101404845A (en) * | 2008-11-14 | 2009-04-08 | 中山大学 | Road illumination monitoring system based on ZigBee technology |
| CN101841746A (en) * | 2010-04-14 | 2010-09-22 | 东南大学 | Wavelength division multiplexing passive optical network optical line terminal having shared protection function |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327652A (en) * | 2013-06-20 | 2013-09-25 | 航天东方红卫星有限公司 | Double radio station redundancy system of satellite-borne ZigBee network coordinator |
| CN105578519A (en) * | 2015-12-21 | 2016-05-11 | 联想(北京)有限公司 | Zigbee node upgrading method and control server |
| CN105578519B (en) * | 2015-12-21 | 2021-07-16 | 联想(北京)有限公司 | Zigbee node upgrading method and control server |
| WO2018049552A1 (en) * | 2016-09-13 | 2018-03-22 | Thomson Licensing | Method and apparatus for controlling network sensors |
| US11223965B2 (en) | 2016-09-13 | 2022-01-11 | Interdigital Ce Patent Holdings, Sas | Method and apparatus for controlling network sensors |
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Application publication date: 20120418 |