CN107455010A - The system and method that wireless sensor network with asymmetrical network framework is provided - Google Patents

The system and method that wireless sensor network with asymmetrical network framework is provided Download PDF

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Publication number
CN107455010A
CN107455010A CN201680007565.XA CN201680007565A CN107455010A CN 107455010 A CN107455010 A CN 107455010A CN 201680007565 A CN201680007565 A CN 201680007565A CN 107455010 A CN107455010 A CN 107455010A
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CN
China
Prior art keywords
wireless
hub
node
communication
network framework
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Pending
Application number
CN201680007565.XA
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Chinese (zh)
Inventor
维韦克·萨伯拉曼尼安
埃拉德·艾伦
维克拉姆·帕维特
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Rockwell Hicks Co Ltd
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Rockwell Hicks Co Ltd
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Publication date
Priority claimed from US14/607,047 external-priority patent/US9706489B2/en
Priority claimed from US14/607,050 external-priority patent/US9529076B2/en
Priority claimed from US14/607,045 external-priority patent/US9380531B1/en
Priority claimed from US14/607,048 external-priority patent/US10028220B2/en
Application filed by Rockwell Hicks Co Ltd filed Critical Rockwell Hicks Co Ltd
Publication of CN107455010A publication Critical patent/CN107455010A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/04—Scheduled or contention-free access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

Disclosed herein is the system and method for realizing power management features while wireless asymmetrical network is provided.In one embodiment, system includes the hub of the control device of wireless with the communication and power consumption for being configured to control in wireless asymmetrical network framework.The system also includes multiple nodes, and each node has with transmitter and receiver (or transmitter and receiver function of transceiver) to realize the wireless device with the two-way communication of the control device of wireless of hub in wireless asymmetrical network framework.Control device of wireless is configured to each wireless device and determined so that emitter is operable as launching and so that receiver is operable as the scheduled timing received, to reduce the power consumption of the wireless device of multiple nodes.

Description

The system and method that wireless sensor network with asymmetrical network framework is provided
The cross reference of related application
The application is related to the Application No. 14/607,047 submitted on January 27th, 2015, entitled：Offer has anti-collision System and method (the ASYMMETRIC NETWORK of the wireless asymmetrical network framework of the wireless device of feature ARCHITECTURES OF WIRELESS DEVICES WITH ANTI-COLLISION FEATURES) application；In 2015 The Application No. 14/607,048 that on January 27, in submits, it is entitled：The wireless of wireless device with power management features is provided System and method (the ASYMMETRIC NETWORK ARCHITECTURES OF WIRELESS of asymmetrical network framework DEVICES WITH POWER MANAGEMENT FEATURES) application；And in the application submitted on January 27 in 2015 Number be 14/607,050, it is entitled：The system and method for determining the position of wireless sensor node in asymmetrical network framework (SYSTEMS AND METHODS FOR DETERMINING LOCATIONS OF WIRELESS SENSOR NODES IN AN ASYMMETRIC NETWORK ARCHITECTURE) application.
Technical field
Embodiments of the invention be related to for provide with asymmetrical network framework wireless sensor network system and Method.
Background technology
In consumer electronics and computer industry, many years are have studied to wireless sensor network.Typical wireless In sensor network, one or more sensors are used in combination with radio, to realize one or more from deployment in a network The wireless collection of the data of individual sensor node.Each sensor node may include one or more sensors, and will include Radio and the electric power for the operation power for sensor node.
Wireless conventional sensors network has some defects, these defective effects its implement indoors in environment operation, Efficiency, cost and ability.
The content of the invention
For one embodiment of the present of invention, disclosed herein is a kind of power for having and being used for providing wireless asymmetrical network The system of the characteristics of management.The system includes the nothing with the communication and power consumption for being configured to control in wireless asymmetrical network framework The hub of thread control device.The system also includes multiple nodes, and each node has with transmitter and receiver with nothing The wireless device with the two-way communication of the control device of wireless of hub is realized in line asymmetrical network framework.Control device of wireless Each wireless device is configured to determine so that emitter is operable as launching and so that receiver is operable as what is received Scheduled timing, to reduce the power consumption of the wireless device of multiple nodes.
In another embodiment, include that there is nothing for providing the system of anti-collision feature to wireless asymmetrical network framework First hub of thread control device, the control device of wireless are configured to control the communication in wireless asymmetrical network framework, And multiple first nodes, each node have with transmitter and receiver with wireless asymmetrical network framework realize with The wireless device of the two-way communication of the control device of wireless of first hub.The control device of wireless of first hub is configured to The communication of the first node from multiple first nodes is detected, it is determined that circuit of at least a portion of communication for the first hub Or whether be connected to the circuit of the first hub is impenetrable, and it is impenetrable feelings at least a portion of communication Under condition, determine whether the communication that first node and section point are launched in the roughly the same time may clash.
The system may also include the second hub with control device of wireless, and the control device of wireless is configured to control Communication in wireless asymmetrical network framework, and multiple section points, each node have with transmitter and receiver with The wireless device with the two-way communication of the control device of wireless of the second hub is realized in wireless asymmetrical network framework.Second The control device of wireless of hub is configured to determine the launch window of the emitter of each wireless device of multiple section points With the reception window of receiver, and anti-collision feature is provided to avoid from the communication of the wireless devices of multiple section points reception Conflict.
In another embodiment, power management features are included for providing the system of wireless asymmetrical network framework.This is System includes the hub with control device of wireless, and the control device of wireless is configured to control in wireless asymmetrical network framework Communication and power consumption, and multiple sensor nodes, each sensor node have at least one sensor and with emitter With receiver with wireless asymmetrical network framework realize with the two-way communication of the control device of wireless of hub without traditional thread binding Put.It is close relative to the launch window of emitter in time that control device of wireless is configured to each wireless device determination It is during first time period and each relative to being operated during the close second time period of the reception window of receiver in time The scheduled timing of sensor node, to reduce the power consumption of the wireless device of multiple sensor nodes.
In one example, each sensor node operates first time period and the second time under the first power consumption levels Section.When outside first time period and second time period, each sensor node can operate under the second power consumption levels.For The example, the first power consumption levels have the power consumption higher than the second power consumption levels.
In another embodiment, include for providing the equipment (for example, hub) of wireless asymmetrical network framework：Storage Device, it is used for store instruction；One or more processing units, it is used for execute instruction to be built in wireless asymmetrical network framework Vertical and control communication and radio frequency (RF) circuit, it includes being used for launching and receiving communication in wireless asymmetrical network framework Multiple antennas.RF circuits may include multiple antennas, and communication is transmitted into multiple sensor nodes, each sensor node tool Have with transmitter and receiver to realize the nothing with the two-way communication of the RF circuits of equipment in wireless asymmetrical network framework Line apparatus.One or more processing units are configured to be based on receiving communication come execute instruction from each sensor node to determine The positional information of multiple sensor nodes.
Other feature and advantage of embodiments of the invention will become apparent from accompanying drawing and following detailed description.
Brief description of the drawings
Show embodiments of the invention, wherein identical accompanying drawing by way of example and not limitation in the figure of accompanying drawing Mark represents similar element, wherein：
Fig. 1 shows typical meshed wireless sensor network.
Fig. 2 shows typical tree-shaped wireless sensor network.
Fig. 3 shows the conceptual foundation of frequency division multiplexing.
Fig. 4 shows time-multiplexed conceptual foundation.
Fig. 5 shows the conceptual foundation of code division multiplexing
Fig. 6 is the asymmetric tree network framework according to one embodiment.
Fig. 7 is shown System.
Fig. 8 A show showing according to the hub for being implemented as the coating 800 for power outlet of one embodiment Example property embodiment.
Fig. 8 B show the block diagram of the hub 820 for being implemented as the coating for power outlet according to one embodiment Exploded view exemplary embodiment.
Fig. 9 A show to be implemented as in computer system, electrical equipment or communication hub according to one embodiment The exemplary embodiment of the hub of the card of deployment.
Fig. 9 B show to be implemented as in computer system, electrical equipment or communication hub according to one embodiment The exemplary embodiment of the block diagram of the hub 964 of the card of deployment.
Fig. 9 C show to be embodied in electrical equipment (for example, intelligent washing machine, intelligent refrigerator, intelligent constant according to one embodiment Warm device, other intelligent electric appliances etc.) internal hub exemplary embodiment.
Fig. 9 D show to be embodied in electrical equipment (for example, intelligent washing machine, intelligent refrigerator, intelligent constant according to one embodiment Warm device, other intelligent electric appliances etc.) internal hub 984 block diagram exploded view exemplary embodiment.
Figure 10 shows the flow chart of the method that communication is provided for wireless asymmetrical network framework according to one embodiment.
Figure 11 shows to offset (shift) transmitting in wireless asymmetrical network framework according to one embodiment and received Communicate to avoid the time series of conflict.
Figure 12 is shown according to the arbitration to be communicated in wireless asymmetrical network framework of one embodiment and conflict avoidance Method.
Figure 13 shows to provide the implementation method that sensor positions according to one embodiment for wireless asymmetrical network framework Flow chart.
Figure 14 show according to one embodiment in equipment (for example, hub) and multi-path environment using multiple antennas with Realize that sensor positions.
Figure 15 shows to be positioned to realize according to multiple hubs that the use of one embodiment each has individual antenna.
Figure 16 shows the wireless asymmetrical network of hub of the offer with power management features according to one embodiment The flow chart of the method for framework.
Figure 17 shows the block diagram of the sensor node according to one embodiment.
Figure 18 shows the block diagram according to system of the one embodiment with hub or electrical equipment 1800.
Figure 19 shows the vibration energy harvesting for being used to provide supplement energy source to sensor node according to one embodiment The block diagram of system.
Figure 20 shows the vibrational energy for being used to charge to the rechargeable battery of sensor node according to another embodiment Measure the block diagram of collection system.
Figure 21 shows the photovoltaic energy for being used to charge to the rechargeable battery of sensor node according to one embodiment Measure the block diagram of collection system.
Embodiment
Disclosed herein is the system and method for realizing power management features when providing wireless asymmetrical network.In a reality Apply in example, system includes the control device of wireless with the communication and power consumption for being configured as controlling in wireless asymmetrical network framework Hub.The system also include each have wireless device multiple nodes, wireless device have transmitter and receiver with The two-way communication with the control device of wireless of hub is realized in wireless asymmetrical network framework.Control device of wireless can by with It is set to and is determined for each wireless device so that emitter is operable as launching and so that receiver is operable as the predetermined of reception Sequential, to reduce the power consumption of the wireless device of multiple nodes.
Wireless sensor network is described for the indoor environment for including house, apartment, office and commercial establishment, And neighbouring remote location, such as parking lot, corridor and garden.Wireless sensor network can also be used for having any of power supply In the building of type, structure, shell (enclosure), vehicle, ship etc..Sensing system provides well for sensor node Battery life, while keep longer communication distance.The other aspect of embodiments of the invention, which provides, realizes sensor Position, avoid conflicting, reduce self discharge and implementing the ability of collection of energy.
Embodiments of the invention provide benefit in terms of power management, for example, indoors with neighbouring external environment condition The wireless sensor network used provides the battery life of enhancing.Using in indoor and neighbouring external environment condition available power it is non-right Title property, to be lifted at the battery life and communication range in the wireless sensor network disposed in this environment.
Embodiments of the invention using low duty ratio network come reduce indoors with the nothing that is used in neighbouring external environment condition The energy expenditure related to transmitting in line sensor network, so as to provide improved battery life.
Anti-collision feature provide avoid indoors with the wireless sensor network that is used in neighbouring external environment condition The method of communication contention aware, without expending excessive energy in the communication related to avoiding conflict.
Sensor location feature provides to be accurately positioned with each sensor node in neighbouring external environment condition indoors Wireless sensor network.
Collection of energy is characterized as providing battery with the wireless sensor network used in neighbouring external environment condition indoors The collection of energy (scavenging) of optimization.
Embodiments of the invention provide a kind of battery powered sensor node architecture, its indoors with carried in like environment For powerful communication and longer battery life, and the sensing being accurately determined in the physical environment of wireless sensor network The ability of the position of device node.
Conventional wireless sensor network uses various communication plans and power source design.In a kind of communication plan, use Mesh network, the sensor node wherein in wireless sensor network serve as router.In this scenario, each node can be sent out Penetrate and carry out own data, the data from other nodes or device can be received, and will can be received from other nodes or device Data be sent to other nodes or device.In the last mode, sensor node shows as repeater, because it is transmitted It is not from the data of itself.Fig. 1 shows to be implemented as the schematic diagram of the wireless sensor network of mesh network.Each node 1 to 10 can launch the data from itself, can receive data from other nodes or device, and can will be from other nodes or dress The data for putting reception are sent to other nodes or device.
In another communication plan, network can be implemented with tree so that network is organized as forming tree Node, wherein root are linked to branch, and branch is linked to other branches and terminal, finally to the terminal of lowest hierarchical level.It is this Network structure is as shown in Figure 2.Within the system, terminal node 7 to 25 only with the respective branch node (example above terminal node Such as 2 to 6) communicated, not directly communicate with each other.For example, terminal node 11 to 14 only communicates with branch node 3, not Directly communicate with each other.Similarly, branch node and terminal node below and the branch node above it are (for example, branch Node 1) communicated, but the not direct branch node with same level communicates.For example, branch node 4 is logical with branch node 1 Letter, but not direct communicated with branch node 3, branch node 5 and branch node 6.By this way, tree network is implemented.
Because multiple wireless sensor networks in typical wireless sensor network can be located in identical physical environment, So the risk of conflict during radio communication be present.Conflict be defined as when two or more nodes and meanwhile attempt communicate when Event, its cause communication at least a portion be impenetrable (for example, mess code, distortion) for process circuit.For The various strategies for avoiding or mitigating conflict have been disclosed.In a kind of method for avoiding conflict, the exemplary plot such as Fig. 3 can be used Frequency division multiplexing shown in 300.Within the system, it can be the specific private communication frequency of each node distribution.It is different by distributing Frequency, the two nodes in collision risk will not be with identical frequency for communication, therefore can avoid conflicting.In the exemplary plot In 300, usable spectrum is divided into frame (for example, frame 1 to 4) on vertical frequency axle 310, and frame is divided into time slot again (for example, time slot 1 to 4).In exemplary plot, there are four frames and four time slots in any time point on horizontal time axis 320 It can use.By distributing time slot between each user (for example, user 1 to 4), 4 different users can launch without depositing simultaneously Conflicting.
In another method for avoiding conflict, the time division multiplexing shown in Fig. 4 exemplary plot 400 can be used.In the system In, can be the specific timeslice of each node distribution, node can communicate during the timeslice.By distributing timeslice so that Two nodes in communication risk do not communicate in identical timeslice, can avoid conflicting.The frame shown on time shaft 420 1 to 4 timeslice (for example, 1 to 4) can be predefined, or usable beacon (beacon) or broadcast synchronization signal come Establish.In the Figure 40 0, multiple users' (for example, multiple sensor nodes) can be shared by using each independent time slot The same frequency band of frequency axis 410.Due to launching in the absence of two users during same time slot, so can avoid conflicting.
In another method for avoiding conflict, code division multiplexing can be used.Within the system, for radio transmitting can It is selected as with frequency spectrum sufficiently wide so that multiple nodes can use different spread spectrum code communications in identical carrier frequency.This is anti- Come over to allow to avoid conflicting.For example, as shown in figure 5, the system is generally used for cellular communication.In the system 500, identical is led to It is used by multiple users with frequency spectrum.However, personal user uses different and separable spreading code so that although they are shared Identical frequency and time and space, but they can deconvolution each other.For example, the user of device 502 launches to the user of device 503 Communication 512.Communication 512 is encoded and decoded by purple code 510.Meanwhile the user of device 504 launches to the user of device 505 Communication 530.Communication 530 is encoded and decoded by green code 530.
In another method for avoiding conflict, being spatially separating for sensor communication can be used so that by preventing in phase Avoid conflicting with the communication of the conflict in physical space.This can be by being placed on diverse location by sensor physics or passing through The shape and degree of the control electromagnetic radiation associated with specific communications event is realized.
Electric power for the operation of single sensor node can obtain in many ways.Can be by the way that single node be connected Battery is connected to provide electric power.Also single node can be connected to electric device to provide electric power by using plug. Also electric power can be provided via collection of energy, wherein collecting energy from available exterior source of energy by node.These energy sources It may include vibration, solar energy, electromagnetic radiation, the heat collectable energy source similar with other.Collectable energy can be it is accidental, Or can be specially supplied to node.The former can be such as wireless sensor network so that solar energy is accidentally may be used Situation about being operated in bright environment, and the latter can be in wherein using induction power couple with by electric power from outer Portion's emitter is transferred to the situation in the environment of sensor node.
In many application of higher wireless sensor network, it is thus necessary to determine that the position of respective sensor node.In the nothing of routine In line sensor network, this is realized in a variety of ways.In the first example, by using the related communication effect of distance Come the distance between two sensor nodes estimating to communicate with one another so that it is determined that the distance between sensor node.In mesh network In network, by using the various communication paths in net, the positioning of each node can be estimated based on the distance of various estimations.Another In one example, positional information is launched by each sensor node, so as to the position of each node in specified sensor network.Can Position is determined using the existing positioning service of such as Global Positioning Service (GPS).
The conventional method being discussed herein has some defects, these defects can influence its be such as found in house, apartment, By the behaviour of implementation in the indoor environment of office and commercial establishment and in such as external position in parking lot, aisle and garden Work, efficiency, cost and/or ability.Especially, in this environment, significant asymmetry in available power be present so that one A little positions will can use the electric power of abundance, and other positions will be with respect to short of electricity.For example, it can make close to the position of socket With the electric power from socket, sunny place by usable solar energy, and away from wall portion and in the position in dark place Putting may be with respect to short of electricity.In such applications, previously described wireless sensor network has the defects of limiting its operation, because This asymmetry, and the phase in terms of the use, supply of electric power and integrated operation of its communication protocol are not utilized for these methods When limited.In addition, indoors in environment, positioning strategy is changed.For example, due to poor satellite-signal penetration power, GPS Indoors generally can not normal work.Similarly, the presence of multiple potential reflecting surfaces may cause using iteration multiple spot away from Positioning from calculating complicates or prevented positioning.
In typical radio communication device, the instantaneous power of transmitting is generally significantly greater than the instantaneous power needed for receiving. Power needed for transmitting is generally directly related with desired communication range, because necessary in the signal intensity that target location receives It is sufficiently large, so that the identification of noise can be realized in that opening position.Therefore can be increased by increasing the signal intensity of transmission signal On a large scale；This causes the increase of the power consumed during transmitting.On the other hand, required power is received to depend on for receiving The signal (for example, communication) of transmitting and the part-time received during radio operated.
Mesh network can by using it is multiple it is short jump and between not a node it is one long jump come reduce transmitting during needed for Power.On the other hand, in the mesh network, must be opened due to receiving radio in the largely or entirely time, that can connect The signal from neighboring mesh nodes is received and/or relays, so the energy needed for receiving can be significantly larger than and sporadically open Receive in the network architecture of radio and receive required reception energy.Thus, it is only required to launch the system of low volume data, mesh network Network may have defect in terms of energy expenditure, and therefore may have defect in terms of battery life.In view of needing that launches to lack Data are measured, this system can be with relatively low transmitting duty cycle, although so needing higher transmission power, total transmitting Energy can be with relatively low.Therefore, in such systems, receiving power becomes even more important.Therefore, mesh network may have unfavorable Power consumption demand, because receiving radio must open within considerable time to support necessary mesh communication.
In the mesh network for eliminating the repeater function in battery powered node, however it remains this to lack Fall into, because battery-operated node is still necessary to expend substantial amounts of electric power to maintain the transmitting with the mesh network architecture of whole network It is compatible with receiving.
There is also defect for conventional tree network., it is necessary to transmitting in the work conventional tree network demand indoors Power may be higher.Particularly because tree network can not utilize short jump to communicate in the case of no highdensity hub, Due to needing the higher transmission power of offer to realize stabilized communication, tree network across the long range between node and hub There may be the significant node energy associated with transmitting to consume.
Conventional wireless sensor network existing defects when being used in the system for only needing low volume data to launch, such as Collection for simple sensing function there may be defect.In such systems, it is necessary to which the relatively low data volume of transmitting may Cause the utilization of network capacity bad, cause a large amount of wastes of the energy in the network of non-circulation work so that battery powered Node is in operator scheme only in the sub-fraction time.
Conventional battery powered wireless sensor node may lose the available energy content of battery because of self discharge and With bad battery life.The problem of this is one under low operation dutycycle in the system run special, because even When node is in low energy resting state in itself, battery capacity is also due to self discharge and lasting loss.
Conventional wireless sensor network have a disadvantage in that they may not to respective sensor node localization, Multiple receiving points may either be needed to use to realize the triangulation of sensor node position or may need to access such as GPS external positioning systems or beacon.Particularly in the indoor environment with significant multipath signal propagations risk, arrowband passes Sensor system may be scattered due to the signal attenuation related to multipath event and time and with bad or non-functional biography Sensor stationkeeping ability.Similarly, indoors in environment, such as GPS external positioning systems or the availability of beacon are probably most It is small or be not present, so as to preventing sensor from positioning.In the network using ultra-wideband communications, positioning may also be by Multiple receiving points are needed to use to realize the limitation of sensing station triangulation.This may cause overall network complexity and into This raising.
Conventional wireless sensor network has the shortcomings that other, because these wireless sensor networks may be in communication period Between conflict avoidance on expend substantial amounts of energy.Some conventional wireless sensor networks need to implement frequency division multiplexing, this needs Use the circuit of precision tuning.Due to the power consumption related to the RF levels of tuning, the operation of these circuits may expend largely Energy.On the other hand, implementing time-multiplexed conventional wireless sensor network system may be due to needed for management timeslice synchronization Transmitting and receive radio power consumption and expend a large amount of electric power.Implement code division multiplexing conventional system in, due to coding and The complexity of decoding, substantial amounts of electric power may be expended in the circuit for performing encoding function.
Wireless sensor network including battery powered sensor node is usually required in sensor communication range and electricity Pond is weighed between the life-span.It can be launched by using the radio of the more power from sensor node, or by implementing it In respective node be used as repeater or router to provide the net of multi-hop communication in the physical extent of wireless sensor network Shape network realizes the scope of longer sensor network operating.In previous example, because the consuming of transmission power is higher, The power consumption increase of sensor node.In later example, transmission power and receiving power may increases.Due to implementing net Network traffics that shape network is related to increase, so transmission power increases, simultaneously because needing to make reception radio when substantial amounts of Between middle unlatching to monitor the network traffics of entrance, so receiving power increases.
Due to the result of the cost of energy related to these communication activity, the battery life of battery powered sensor node It is normally limited.Indoors in environment, it is noted that, sensor node and wireless senser are used in specific position The power of the operation of network is sufficient.In one embodiment, indoor environment includes such as will be present in house, apartment, office Room and the indoor and neighbouring external position of commercial establishment, such as parking lot, corridor and garden.In one example, exist The specific location of power outlet in room environment or along outside wall portions can obtain electric power.Due to enough sun can be produced The ability of energy, also it can obtain electric power in extensive sunny regions.The other examples that electric power can locally be obtained are general to this area Logical technical staff is obvious.Therefore, indoor environment provides the significant asymmetry of supply of electric power so that by portion Some nodes in wireless sensor network can fully use external power source in this environment for administration, in this environment Other nodes may be limited to the energy being stored in the power supply (for example, battery) of attachment.
In one embodiment, using the asymmetry of supply of electric power with wireless asymmetrical network framework provide compared with The communication of long range, while to keep longer battery life by the node of battery source power supply.In the exemplary embodiment, can be real 20 meters of communication range between present communication node, at the same provide in battery powered node longer battery life (for example, About 10 years, at least 10 years).According to an embodiment of the invention, this can be realized by implementing energy sensing network agreement.It is special Not, tree network framework can be used, wherein using long-life batteries supply node in the terminal of tree.
Fig. 6 shows the system with asymmetric tree network framework according to one embodiment.System 600 includes one Hub 610, it has control device of wireless 612；And three nodes 620,630 and 640, it each includes wireless device 621st, 631 and 641.Each wireless device include RF circuits (for example, the transceiver with transmitter function and receiver function, Transmitter and receiver) with realized in wireless asymmetrical network framework with the control device of wireless of hub 610 include it is logical The two-way communication of letter 622,624,632,634,642 and 644.For example, the transmitting of sensor node 630 communication 632 is (for example, sensing The transmitting communication of device node 630) and receive communication 634 (for example, reception communication of sensor node 630) from hub 610. From the perspective of hub 610, for hub, communication 632 is to receive communication, and communication 634 is transmitting communication.Controlled in wireless Device is configured to each wireless device and determined so that emitter is operable as launching and so that receiver is operable as receiving Scheduled timing, to reduce the power consumption of the wireless device of node 620,630 and 640.
In one embodiment, hub 610 is by main power source (for example, exchange (AC) power supply) power supply, and node is by battery source Or each self-powered of another energy source (non-main power source), to form wireless asymmetrical network.Each nothing based on hub and node The sequential of communication between line apparatus to determine to power to emitter for each wireless device of node and to receiver power supply Scheduled timing.
In one example, the emitter operability of each wireless device of node is period of the transmitting less than 5%, And 5% period that the receiver operability of each wireless device of multiple first nodes is less than for reception.Another In example, the emitter of each wireless device of node is operable as period of the transmitting less than 1%, and each nothing of node The receiver of line apparatus is operable as receiving the period less than 1%.When the transmitter and receiver of wireless device can not be respective When operating to launch and receiving, node is in non-communicating state.
Sensor node includes one or more sensors, and it includes imaging sensor, moisture sensor, TEMP Device, humidity sensor, air mass sensor, optical sensor, motion sensor and audio sensor etc., for including house and The integrality of office and the different application of security.For example, motion sensor can sensing movement to determine whether are door or window Unlocked, imaging sensor obtains image to determine whether intruder has made a forcible entry into house or building.In this case, Alarm or caution signal can be launched into the device of homeowner or the building owner (for example, source device, client fill Put, mobile device, board device, computing device etc.).
In another example, moisture sensor can determine that whether house or building there is potential leakage or humidity to ask Topic.In in these embodiments some, sensor there may come a time when to need to communicate without waiting time slot or hair for its distribution Penetrate window.For example, when alarm sensor detects intruder, it may occur that such case.In this case, sensor It can launch immediately, and hub is by receive information, because hub has sufficient electric power and is operable as receiving always. On the other hand, this network still will benefit from the transmitting controlled in the normal operation period by hub and receive what window was realized Power reduces.
In certain embodiments, multiple hubs can communicate with one another, and multiple nodes can communicate with multiple hubs, and collect Line device and node can carry out tissue to realize multi-layer tree network in more layers.
Fig. 7 is shown System.System 700 includes the central hub 710 with control device of wireless 712, the hub with control device of wireless 721 720th, the hub 782 with control device of wireless 783 and the additional collection of the hub n with control device of wireless n is included Line device.Unshowned additional hubs can communicate with central hub 710, other hubs, or can be additional center Hub.Each hub and other hubs and one or more sensor node two-way communications.Hub is also devised to With including device 780 (for example, client terminal device, mobile device, board device, computing device, intelligent apparatus, intelligent television etc.) Other device two-way communications.
Sensor node 730,740,750,760,770,788,792, n and n+1 (or terminal node) each include respectively Wireless device 731,741,751,761,771,789,793, n and n+1.If sensor node only has and higher levels The uplink communication of hub or node, without the downlink communication with another hub or node, then the sensor node is eventually End node.Each wireless device include the RF circuits with transmitter and receiver (or transceiver) with realize with hub or its The two-way communication of his sensor node.
In one embodiment, central hub 710 and hub 720, hub 782, hub n, device 780 and Node 760 and node 770 communicate.These communications be included in communications 732 in wireless asymmetrical network framework, 734,742,744, 752nd, 754,774,772,764,762,781,784,786,714 and 712.Central hub with control device of wireless 711 It is configured to launch to other hubs and communicates, and it is wireless asymmetric for controlling and monitoring from other hubs reception communication The network architecture.
Hub 720 communicates with central hub 710 and sensor node 730,740 and 750.With these sensor sections The communication of point includes communication 732,734,742,744,752 and 754.For example, from the perspective of hub 720, communication 732 by Hub receives, and communication 734 is launched into sensor node.From the perspective of sensor node 730, communicate 732 quilts Hub 720 is transmitted into, and communication 734 receives from hub.
Control device of wireless 721 is configured to each wireless device 731,741,750 and determines make it that emitter is operable For launch and so that receiver be operable as receive scheduled timing, to reduce the work(of the wireless device of node 730,740 and 750 Consumption.
The control device of wireless 711 of central hub 710 is configured to each wireless device and determines make it that emitter can Operate for launch and so that receiver be operable as receive scheduled timing, to reduce the power consumption of the wireless device of node.For example, The control device of wireless 711 of central hub 710 is configured to each wireless device 761 and 771 and determines make it that emitter can Operate for launch and so that receiver be operable as receive scheduled timing, to reduce the work(of the wireless device of node 760 and 770 Consumption.
In another example, the control device of wireless 711 of central hub 710 be further configured to for hub 720, 782 and n each control device of wireless determines make it that emitter is operable as launching and so that receiver is operable as what is received Scheduled timing, it is particularly true if these hubs are powered by main power source to reduce the power consumption of these hubs.
In one embodiment, central hub 710, hub 720, hub 782 and hub n are supplied by main power source Electricity, each free battery source of sensor node or another energy source (non-main power source) power supply, to form wireless asymmetrical network.Base The sequential of communication between the wireless device of hub and associated node, it is that the wireless device of each node determines to cause Emitter is operable as launching and so that receiver is operable as the scheduled timing received.
By using the framework shown in Fig. 6 or Fig. 7, it is necessary to which the node of long battery life minimizes consumption in communication Energy, and the node of the higher levels in tree-shaped level is carried out by using available energy source, or it is alternative Implemented using the battery for providing higher capacity or the shorter battery life of supply on ground.For the ease of in battery powered terminal section Longer battery life is realized on point, can be in these nodes and counterpart (the hereinafter referred to as lowest hierarchical level line concentration of a level thereon Device) between establish communication so that occur between the hub and terminal node of lowest hierarchical level minimum transmitting and receive flow.
In one embodiment, node by the most of the time (for example, more than its time 90%, more than its time 95%th, about its time 98% or more than its time 98%) expend low energy non-communicating state.When node is waken up simultaneously During into communications status, node is operable as transmitting data to the hub of lowest hierarchical level.The data may include to be used for wirelessly The node identification information of sensor network, sensing data, node status information, synchronizing information, location information and other this Information.
Then node can also with the relevant qualitative fashion really operation of transmitting sequential, so as to receive by tree network frame The data of lowest hierarchical level hub or the transmitting of other communicators in structure or tree-shaped mesh architecture.Due to the sequential and hair of reception The sequential penetrated is relevant, so terminal node will not expend excessive energy connecing the reception radio of the receiver of RF circuits Work is kept in receipts pattern.In addition, for example, the transmitting radio of the RF circuits in lowest hierarchical level hub is based on from terminal node The sequential of the signal of transmitting, it is thus understood that when the reception radio of terminal node works.It is noted that in the network architecture Lowest hierarchical level hub and other devices can be received radio and be maintained at exercisable pattern, in the most of the time Communication (for example, reception pattern) is received, because they are not by energy constraint.The number launched by hub and received by terminal node According to may include the instruction for wireless sensor network, configuration information, node identification information, timing information and other this letters Breath.
According to an embodiment of the invention, hub can physically be implemented in many ways.Fig. 8 A are shown according to a reality Apply the exemplary embodiment of the hub for being implemented as the coating 800 for power outlet of example.Coating 800 is (for example, face Plate) include hub 810 and hub 810 is connected to the connecting portion 812 of power outlet 802 (for example, communication link, signal Line, electrical connection etc.).Alternatively (or additionally), hub is connected to outlet 804.For safety and purpose attractive in appearance, coating Power outlet 802 and 804 is surrounded in 800 coverings.
Fig. 8 B show the block diagram of the hub 820 for being implemented as the coating for power outlet according to one embodiment Exploded view exemplary embodiment.Hub 820 includes power rectifier 830, and it is by the exchange of periodically reverse directions Electric (AC) is converted into the direct current (DC) only flowed in one direction.Power rectifier 830 is via connecting portion 812 (for example, logical Believe link, signal wire, electrical connection etc.) receive AC from outlet 802, and AC is converted into DC, with via connection 832 (for example, communicating Link, signal wire, electrical connection etc.) powered to controller circuitry 840, and via connection 834 (for example, communication link, signal Line, electrical connection etc.) powered to RF circuits 850.Controller circuitry 840 includes memory 842 or is coupled to memory, stores Device stores the instruction performed by the processing logic section 844 (for example, one or more processing units) of controller circuitry 840, is used for Control is formed and the monitoring wirelessly operation of the hub of asymmetrical network as discussed herein.RF circuits 850 may include to be used for Function is the emitter launched and received the transceiver of two-way communication with wireless sensor node via antenna 852 or separate 854 and receiver 856.RF circuits 850 are via connecting portion 834 (for example, communication link, signal wire, electrical connection etc.) and controller The two-way communication of circuit 840.Hub 820 can be control device of wireless 820 or can be formed wireless as discussed herein The combination of the controller circuitry 840 of control device, RF circuits 850 and antenna 852.
Fig. 9 A show to be implemented as being deployed in computer system, electrical equipment or communication hub according to one embodiment In card hub exemplary embodiment.As shown in arrow 963, card 962 can be inserted into system 960 (for example, calculating Machine system, electrical equipment or communication hub) in.
Fig. 9 B show to be implemented as being deployed in computer system, electrical equipment or communication hub according to one embodiment In card hub 964 block diagram exemplary embodiment.Hub 964 includes power supply 966, and it is via connecting portion 974 (for example, communication link, signal wire, electrical connection etc.) provides electric power (for example, D/C power) to controller circuitry 968, and via even Socket part 976 (for example, communication link, signal wire, electrical connection etc.) provides electric power to RF circuits 970.Controller circuitry 968 includes Memory 961 is coupled to memory, and memory storage is by the processing logic section 963 of controller circuitry 968 (for example, one Or multiple processing units) instruction that performs, formed and the collection of monitoring wireless asymmetrical network as discussed herein for controlling The operation of line device.RF circuits 970 may include that function is for being launched and being received with wireless sensor node via antenna 978 The transceiver of two-way communication or separated emitter 975 and receiver 977.RF circuits 970 are via connecting portion 972 (for example, communication Link, signal wire, electrical connection etc.) and the two-way communication of controller circuitry 968.Hub 964 can be control device of wireless 964 or Person is the group that can form the controller circuitry 968 of control device of wireless as discussed herein, RF circuits 970 and antenna 978 Close.
Fig. 9 C show to be embodied in electrical equipment (for example, intelligent washing machine, intelligent refrigerator, intelligent constant according to one embodiment Warm device, other intelligent electric appliances etc.) internal hub exemplary embodiment.Electrical equipment 980 (for example, intelligent washing machine) includes collection Line device 982.
Fig. 9 D show to be embodied in electrical equipment (for example, intelligent washing machine, intelligent refrigerator, intelligent constant according to one embodiment Warm device, other intelligent electric appliances etc.) internal hub 984 block diagram exploded view exemplary embodiment.Hub includes electricity Source 986, it provides electric power via connecting portion 996 (for example, communication link, signal wire, electrical connection etc.) to controller circuitry 990 (for example, D/C power), and provided via connecting portion 998 (for example, communication link, signal wire, electrical connection etc.) to RF circuits 992 Electric power.Controller circuitry 990 includes memory 986 or is coupled to memory, and memory storage is by controller circuitry 990 The instruction that logic section 988 (for example, one or more processing units) performs is managed, is formed and monitored as discussed herein for controlling Wireless asymmetrical network hub operation.RF circuits 992 may include that function is for via antenna 999 and wireless sensing The transceiver of two-way communication or separated emitter 994 and receiver 995 are launched and received to device node.RF circuits 992 pass through By connecting portion 994 (for example, communication link, signal wire, electrical connection etc.) and the two-way communication of controller circuitry 990.Hub 984 can To be control device of wireless 984 or the controller circuitry 990 of control device of wireless as discussed herein, RF electricity can be formed Road 992 and the combination of antenna 999.
Figure 10 shows the flow chart of the method that communication is provided for wireless asymmetrical network framework according to one embodiment.Side The operation of method 1000 can be by wireless device, the control device of wireless of hub (for example, equipment) or including process circuit or processing The system of logic section performs.Processing logic section may include hardware (circuit, special logic etc.), software (such as in general-purpose computations Run on machine system or special purpose machinery or device) or both combination.In one embodiment, hub performs method 1000 Operation.
In operation 1002, the processing logic section with the hub of control device of wireless will include instruction and configuration information Communication be transmitted into multiple nodes.Other information including node identification information, timing information and other information can be also included In the communication launched.In one example, the RF circuit transmissions of hub and reception communicate.In operation 1004, line concentration Device is received from multiple nodes and communicated, and there is each node the wireless device with transmitter and receiver (or transceiver) to realize Two-way communication with hub is to form wireless asymmetrical network framework.In operation 1006, the processing logic section (example of hub Such as, one or more processing units) determine that emitter (or transmitter function of transceiver) can be grasped for each wireless device As launching and causing receiver (or receiver function of transceiver) to be operable as the scheduled timing received, to reduce multiple sections The power consumption of the wireless device of point.
In one example, hub is powered by main power source, multiple each free battery sources of node or the power supply of another energy source, To form wireless asymmetrical network framework.
In one embodiment, based on the sequential of the communication between hub and each wireless device of multiple nodes come for Each wireless device determines to cause emitter (or transmitter function of transceiver) to be operable as launching and causes receiver (or receipts Send out the receiver function of device) it is operable as the scheduled timing of reception.In one example, based on from least one wireless device quilt It is transmitted into the sequential of the communication of hub and determines to cause receiver (or the reception of transceiver at least one wireless device of node Machine function) it is operable as the scheduled timing of reception.
In one example, wireless asymmetrical network framework includes wireless tree-shaped asymmetrical network framework.In another example In, wireless asymmetrical network framework includes wireless tree-shaped and netted asymmetrical network framework.
In one embodiment, hub may indicate that one or more nodes offset following transmitting/reception communication when Sequence, to avoid the conflict on network.Figure 11 show according to the offset launch of the wireless asymmetrical network framework of one embodiment and Communication is received to avoid the time series of conflict.Figure 11 shows the hub and node 1 to 4 for wireless asymmetrical network framework Transmitting and receive timeline.Originally, it is logical to hub transmitting in the launch window 1110 period node 1 of launch time line (TX) Letter.In this embodiment, as shown in the continuous reception window 1108 of hub, hub is continuously intercepted (listen). Then hub calculates the reception window interval that launch window subtracts node 1, to determine the reception timeline (RX) of node 1 Receive the sequential of window 1112.During the launch window 1114 of hub, hub is launched to node 1 to communicate, and node 1 reception window 1112 receives the communication.In other words, during window 1112 is received, the RF circuits of the wireless device of node 1 Receiver (or receiver function of transceiver) is operable as receiving to receive communication.
In a similar way, hub communicates or exchanged with node 2.In the emitter window of the launch time line (TX) of node 2 During mouth 1116, node 2 is launched to hub to communicate.Then hub calculates launch window and subtracted between the reception window of node 2 Every to determine the sequential of the reception window 1120 of the reception timeline (RX) of node 2.In the phase of launch window 1118 of hub Between, hub is launched to node 2 to communicate, and the reception window 1120 of node 2 receives the communication.
Then, the hub communication of detection from node 3 during the launch window 1122 of node 3, while or Also communication of the detection from node 4 during the launch window 1124 of node 4 of roughly the same time.In the conflict time 1130, hub, which detects, has occurred that conflict 1131 (for example, detect transmitting when hub is partly or entirely not It is intelligible or during by irreversibly mess code (garble)).In other words, conflict the time 1130 at or its neighbouring time, come from The communication of node 3 and node 4 combines to form the impenetrable transmitting received by hub (for example, irreversible mess code is sent out Penetrate).Then, hub can be during impenetrable or mess code launch window (for example, launch window 1122 and 1124) Any node of impenetrable or mess code transmitting is transmitted to calculate next reception window.As shown in figure 11, in the He of node 3 4 next reception window (for example, receiving window 1132 and 1134) or any other receipt of subsequent window are (for example, receive window 1145 and 1147) in, have launch window 1126 hub may indicate that conflicting nodes (for example, node 3 and node 4) with difference Time delay or the time cycle come offset it is their own transmitting and reception window.In this example, node 3 from emitter window Mouth 1122 is to the time delay of launch window 1144 or skew 1150 less than node 4 from launch window 1124 to launch window 1146 time delay or skew 1152, to be kept away based on the transmitting during launch window 1144 and launch window 1146 Exempt to conflict.
For example, the random number generator in each node can be used to determine the time delay or skew, Huo Zheke at random Determined by hub and indicated.Hub can be selected from available following window, and be supplied to them as set Conflicting nodes.For example, then these conflicting nodes can be randomly chosen one of these.Once selected, it should be Following window avoids conflicting.On the other hand, if clashed again in next window (for example, because in conflicting nodes Two have selected identical time migration by chance), then the process is repeated until avoiding all conflicts.In this manner, line concentration Device can be arbitrated to the operation of whole network, without the significant complexity of node, so as to reduce needed for nodal operation Energy.
Figure 12 shows the arbitration and conflict of the communication being used in wireless asymmetrical network framework according to one embodiment The method avoided.The operation of method 1200 can be by wireless device, the control device of wireless of hub (for example, equipment) or including place Reason circuit handles the system of logic section and performed.Processing logic section may include hardware (circuit, special logic etc.), software (example Such as run in general-purpose computing system or special purpose machinery or device) or both combination.In one embodiment, hub is held The operation of row method 1200.
In operation 1202, receiver (for example, receiver function of the RF circuits, transceiver) detection of hub comes from nothing The communication (for example, transmitting) of at least one node of multiple nodes in line asymmetrical network framework.Each node include or Be there is transmitter and receiver (or transmitter and receiver function of transceiver) with realize with the two-way communication of hub with Form the wireless device of wireless asymmetrical network framework.In operation 1204, the processing logic section of hub is based on from another Communication or the interference in RF sources determine at least a portion (for example, 25%, 50%, 75%) of communication to the process circuit of hub Or potentially (potentially) be connected to the hub process circuit it is whether unintelligible (for example, mess code, distortion).
In operation 1206, when communication is confirmed as being appreciated that, the processing logic section of hub determines transmitting communication The mark of node, and determine next or receipt of subsequent window for transmitting node.In operation 1208, if necessary or suitably, collection The emitter (or transmitter function of transceiver) of line device is sent out during identified next or receipt of subsequent window to the node Penetrate communication.
In operation 1210, when at least a portion of communication is confirmed as unintelligible, the processing logic section of hub It is determined that whether the conflict for the communication launched in the roughly the same time from different nodes is possible to have occurred and that (for example, substantially Conflict Probability equal to or more than 50%).If it is, the processing logic section of hub saves for conflict in operation 1212 Point calculates next or receipt of subsequent window.During the reception window of conflicting nodes, hub (for example, the emitter of hub, The transmitter function of the transceiver of hub) launch communication to conflicting nodes and make next launch window for node with not Same period or the instruction of the time field offset determined at random.For example, first node is based on the first communication from hub It is instructed to next launch window with very first time field offset, while section point is referred to according to the second communication from hub Show and offset next launch window with second time period.In this example, the first and second periods be significantly different, to keep away Exempt from the conflict of the following transmitting from first node and section point.
If the processing logic section of hub determines from different nodes to launch in the roughly the same time in operation 1210 Communication may no conflict occurred, then operation 1216 in, the processing logic section of hub be transmit with communicate extremely A few part is to the process circuit of hub or to be connected to the process circuit of hub be that the node of impenetrable communication determines Next or receipt of subsequent window.In operation 1218, during the next or receipt of subsequent window calculated of node, hub Processing logic section launch communication from hub to node, the repetition that earlier communicates hair of the communication request from the node Penetrate.
In one embodiment, for providing the equipment of wireless asymmetrical network framework (for example, hub, controlled in wireless Device etc.) include the memory for store instruction (for example, memory 842, memory 961, memory 986, memory 1886), execute instruction with establish and control the processing logic section of the communication in wireless asymmetrical network framework (for example, one or Multiple processing units, processing logic section 844, processing logic section 963, processing logic section 988, processing logic section 1888), Yi Jifa Penetrate and receive radio frequency (RF) circuit of the communication in wireless asymmetrical network framework.To the RF circuits of multiple nodes transmitting communication (for example, RF circuits 850, RF circuits 970, RF circuits 992, RF circuits 1890), each node, which has, carries emitter and reception The wireless device of machine (or transmitter and receiver function of transceiver) is with realization and line concentration in wireless asymmetrical network framework The two-way communication of the RF circuits of device.Processing logic section (for example, one or more processing units) is configured to execute instruction with true The launch window of the fixed emitter by each wireless device (for example, sensor node, terminal node) for being transmitted into equipment that communicates With the reception window of receiver, and anti-collision feature is provided to avoid the conflict of communication received from wireless device.
In one example, equipment is powered by main power source, multiple each free battery sources of node or another energy source (non-master electricity Source) power supply, to form wireless asymmetrical network.
In one embodiment, the processing logic section (for example, one or more processing units) of hub is configured to hold Row instruction to determine whether to have occurred and that conflict for the communication received from first node, and if from first node with The conflict of the communication of section point has occurred and that, then calculates next or receipt of subsequent window for first node and section point.
In one example, the processing logic section (for example, one or more processing units) of hub is configured to perform Instruction by communication during the receptions window of first node and section point to be transmitted into each of first node and section point It is individual, wherein each communicate pin is to each node so that each node by next launch window with the different periods or it is random really The fixed period enters line displacement.
The processing logic section (for example, one or more processing units) of hub is configured to work as from first node and second When the communication that node receives clashes, execute instruction to generate at least one random number, and based on this it is at least one with Machine number by for the following launch window of at least one node or it is following receive in window it is at least one enter line displacement.One In individual example, wireless asymmetrical network framework is implemented in building or near building, to ensure and to monitor in building Or neighbouring situation.
In one embodiment, can be in tree network framework or tree-shaped and each last layer level of mesh network architecture collection Added communications are provided between line device.The communication may include the data received from terminal node or the number that will be launched into terminal node According to, the transmission of configuration information, timing information, hub and/or node identification information etc..
Various methods can be used to realize for communication between the hub and node that are discussed herein, it includes but is not limited to make With the direct wireless communication of radio frequency, realized by modulating the signal on the electric wire in house, apartment, commercial establishment etc. Power line communication, use the WiFi of such as 802.11a, 802.11b, 802.11n, 802.11ac standard WiFi communication agreement Communication, and for those of ordinary skills other obvious this Wifi communication protocols, such as GPRS, EDGE, 3G, HSPDA, LTE cellular communication, and other obvious honeycombs lead to for those of ordinary skills Believe agreement, Bluetooth communication, using such as Zigbee known wireless sensor network protocols communication, it is and general to this area Other obvious wired or wireless communication schemes for logical technical staff.
Radio communication between terminal node and hub can be implemented in a variety of ways.In one embodiment, this is logical Ultra-wideband communications (UWB) can be used to realize for letter.UWB has several advantages.For example, UWB communications are asked related to multi-path jamming Topic provides more preferable immunity to interference.In narrowband systems, it is also well known that for example, anti-on the surface for being added to line of sight signal The signal for the time delay penetrated may cause the decay of signal intensity and integrality.On the other hand, in UWB, because pulse is wide Degree is shorter, therefore would generally suppress to decay.UWB also provides more preferable channel usage, and this is to multiple while communication node Wireless sensor network is beneficial.UWB also provides more preferable penetration performance so that wall portion being present in indoor environment etc. Will not be as it many narrowband networks to significantly decreasing network performance.UWB also allows to use simpler radio architecture, It has the RF parts of less inductor, capacitor etc..Because the power supply of these parts would generally increase overall power consumption, So this is beneficial in low-power environment.Therefore, UWB is supplied the battery in terminal node in terms of improved battery life The UWB radio of electricity has benefit.
In addition, UWB allows to implement sensor positioning in a relatively simple manner.Figure 13 is shown Wireless asymmetrical network framework provides the flow chart for the method for implementing sensor positioning.The operation of method 1300 can be by without traditional thread binding Put, the control device of wireless of hub (for example, equipment) or including process circuit or handle the system of logic section and perform.Processing Logic section may include hardware (circuit, special logic etc.), software (such as in general-purpose computing system or special purpose machinery or device Operation) or both combination.In one embodiment, hub performs the operation of method 1300.
In operation 1301, there is the hub of radio frequency (RF) circuit and at least one antenna to wireless asymmetrical network frame Multiple sensor nodes transmitting communication in structure.In operation 1302, the RF circuits and at least one antenna of hub are from multiple Sensor node receives communication, and each sensor node has the wireless device with transmitter and receiver with wireless non- The two-way communication with the RF circuits of hub is realized in symmetrical network framework.In operation 1303, based on from each sensor section Point receives communication, and the processing logic section (for example, one or more processing units) of hub determines the position of multiple sensor nodes Confidence ceases (for example, accurate positional information).Required accuracy class can according to deployment sensor network application needs come Selection.For example, positional precision can be better than 1 meter (m) in any direction so that the environment near typical indoor or interior In, the approximate location of sensor be it is known, and the position of any two or multiple sensors there will necessarily be it is seldom overlapping or In the absence of overlapping.In the application of higher precision is needed, the positional precision better than 10 centimetres (cm) can be obtained so that each sensing The exact position of device node is known.
In one example, hub is powered by main power source, multiple each free battery sources of sensor node or another energy Source (non-main power source) powers, to form wireless asymmetrical network framework.
In one example, one or more processing units of hub are logical based on being received from multiple sensor nodes At least one in the arrival angle information of letter, signal strength information and arrival time information determines the position of multiple sensor nodes Confidence ceases.
In another example, one or more processing units are based on the arrival that angle of arrival is determined using most strong component of signal Angle information, and be combined into the communication identification multi-path environment from multiple sensor nodes according to arrival time information determine The information of most short directapath determines the positional information of multiple sensor nodes.
In one example, wireless asymmetrical network framework include wireless tree-shaped asymmetrical network framework or it is wireless tree-shaped and It is at least one in netted asymmetrical network framework.
In one embodiment, ultra wide band (UWB) communication is transmitted into multiple sensors by least one antenna of hub Node simultaneously receives UWB communications from multiple sensor nodes.
For example, angle of arrival (AOA) information, signal intensity (SS) information can be used in the hub that UWB transmittings are received from node And/or arrival time (TOA) information determines the position of node.Multiple antennas on hub can be used to determine AOA information, Enable to determine angle of arrival using peak signal component.Can be from the information knot in the most direct path that TOA is determined with identification Close, sensing station can be established.Due to the short pulse used in UWB, so TOA precision can be higher, with multipath It is particularly true in environment.Similarly, SS information can be used to estimate the sensor distance of node, and biography can be provided with reference to AOA Sensor positions.In one example, Figure 14 shows the overall architecture of the sensor positioning based on UWB.
Figure 14 shows to use multiple antennas in equipment (for example, hub) and multi-path environment with reality according to one embodiment Existing sensor positioning.Environment 1400 includes wall portion 1330,1331 and 1332.Hub 1310 includes antenna 1311,1312 and 1313.Sensor node 1 includes antenna 1321, and sensor node 2 includes antenna 1322.If for example, received from node 1 and 2 Angle of arrival (AOA) information, signal intensity (SS) letter can be used in transmitting 1340 to 1347 (for example, UWB launches), hub 1310 Breath and/or arrival time (TOA) information determine the position of node 1 and 2.Because two peak values of such as signal 1348 are to the time Short UWB pulses shown in 1349, mulitpath is suitable for (for example, the reflection based on wall portion or other objects, such as by wall portion The first paths 1346 for being used to launch of 1332 reflections and the second paths 1347 for transmitting) influence.Signal 1348 represents The combination of transmitting 1346 and 1347.First peak value 1334 represents transmitting 1346, and the second peak value 1336 represents transmitting 1347.It can make AOA information is determined with multiple antennas 1311 to 1313 on hub 1310, enables to utilize most strong component of signal To determine angle of arrival.Combining information identifies the most direct path that can be determined according to TOA, can establish node 1 and node 2 Sensing station.Due to the short pulse used in UWB, so TOA precision can be higher, in the environment with multipath particularly So.Similarly, SS information can be used to estimate the sensor distance of node, and sensor positioning can be provided with reference to AOA.
In one embodiment, for providing the equipment of wireless asymmetrical network framework (for example, hub 610, hub 710th, hub 720, hub 782, hub n, hub 820, hub 964, hub 984, hub 1310, line concentration Device 1882) include the memory for store instruction (for example, memory 842, memory 961, memory 986, memory 1886), hub processing logic section (for example, one or more processing units, processing logic section 844, processing logic section 963, Processing logic section 988, processing logic section 1888) it is logical in wireless asymmetrical network framework to establish and control with execute instruction Letter, and including multiple antennas (for example, antenna 852, antenna 978, antenna 999, antenna 1311, antenna 1312 and antenna 1313) To launch in wireless asymmetrical network framework and receive radio frequency (RF) circuit of communication (for example, RF circuits 850, RF circuits 970th, RF circuits 992, RF circuits 1890).Communication is transmitted into multiple sensor nodes (for example, section by RF circuits and multiple antennas Point 1, node 2), each sensor node, which has, carries transmitter and receiver (or transmitter and receiver function of transceiver) Wireless device to realize the two-way communication with the RF circuits of equipment in wireless asymmetrical network framework.Handle logic section (example Such as, one or more processing units) it is configured to based on more to determine come execute instruction from the reception communication of each sensor node The positional information of individual sensor node.
In one embodiment, equipment is powered by main power source, and multiple sensor nodes are by battery source or another energy source (non-main power source) powers, to form wireless asymmetrical network.
In one embodiment, handle logic section (for example, one or more processing units) be configured to execute instruction with In angle of arrival information, signal strength information and arrival time information based on the communication from multiple sensor nodes at least One determines the positional information of multiple sensor nodes.
In one embodiment, handle logic section (for example, one or more processing units) be configured to execute instruction with The arrival angle information of angle of arrival is determined based on the most strong component of signal of utilization, and is combined into the communication from multiple sensor nodes The information of the most short directapath that is determined by arrival time information in identification multi-path environment determines multiple sensor nodes Positional information.
In one example, wireless asymmetrical network framework include wireless tree-shaped asymmetrical network framework or it is wireless tree-shaped and It is at least one in netted asymmetrical network framework.
In one embodiment, ultra wide band (UWB) communication is transmitted into multiple sensor nodes by multiple antennas of RF circuits And receive UWB communications from multiple sensor nodes.
In an alternate embodiment of the invention, multiple hubs can be used to receive data from sensor node simultaneously.In the application In, by carrying out triangulation from the distance that measurement is estimated via SS or TOA, the position of sensor can be established, without AOA It is determined that.The example is as shown in figure 15.
Figure 15 shows that each multiple hubs with individual antenna realize sensor according to the use of one embodiment Positioning.Environment 1350 includes wall portion 1370,1371 and 1372.System 1354 include with antenna 1361 hub 1360, Hub 1362 with antenna 1363 and the hub 1364 with antenna 1365.Hub is synchronized with each other.Sensor node 1382 include antenna 1383, and sensor node 1380 includes antenna 1381.As shown in figure 15, sensor node 1380 will be launched 1370 to 1372 are transmitted into hub 1360,1362 and 1364 respectively.As shown in figure 15, sensor node 1382 will launch 1373 Hub 1360,1362 and 1364 is transmitted into respectively to 1375.The arrival time information at multiple hubs can be used to map The position of node 1380 and 1382.
In one embodiment, include that there is place for providing the system (for example, system 1350) of wireless asymmetrical network Manage logic section (for example, one or more processing units) and for launching and receiving the first of communication in wireless asymmetrical network The first hub (for example, hub 1360) of antenna (for example, antenna 1361).Second hub (for example, hub 1362) Including processing logic section (for example, one or more processing units) and for launching in wireless asymmetrical network and receiving communication The second antenna (for example, antenna 1361).The system also includes multiple sensor nodes (for example, node 1380 and 1382), often Individual sensor node have with transmitter and receiver (or transmitter and receiver function of transceiver) wireless device with The two-way communication with the first hub and the second hub is realized in wireless asymmetrical network framework.First hub and second The processing logic section (for example, processing logic section of controller circuitry 840,986,990) of hub be configured to execute instruction with Communicated based on being received from each sensor node to determine the positional information of multiple sensor nodes.
In one example, the first hub is powered by main power source, and multiple sensor nodes are powered by battery source, with shape Into wireless asymmetrical network.
In one embodiment, the first hub and the second hub is synchronized with each other and the position of shared multiple sensor nodes Confidence ceases.
In one embodiment, the processing logic section of the first hub and the second hub is (for example, one or more processing Unit) execute instruction is configured to based on to the distance via the associated arrival time information measurement of the communication with being received Triangulation determine the positional information of multiple sensor nodes.
In another embodiment, the processing logic section of the first hub and the second hub is (for example, one or more processing Unit) execute instruction is configured to based on the distance to being measured via the associated signal strength information of the communication with being received Triangulation determine the positional information of multiple sensor nodes.
In one example, wireless asymmetrical network framework includes wireless tree-shaped asymmetrical network framework.In another example In, wireless asymmetrical network framework includes wireless tree-shaped and netted asymmetrical network framework.
In one embodiment, the processing logic section (for example, one or more processing units) of the second hub is configured Communicated into execute instruction so that communication to be transmitted into the first hub and be received from the first hub, it is wireless for controlling and monitoring Asymmetrical network framework.
In one embodiment, the second antenna of the first antenna of the first hub and the second hub is by ultra wide band (UWB) communication is transmitted into multiple sensor nodes and receives UWB communications from multiple sensor nodes.
In one embodiment, include being used to reduce sensor node for providing the system of wireless asymmetrical network framework Power consumption power management features.System (for example, system 700) include with control device of wireless the first hub (for example, Hub 710, hub 820, hub 964, hub 984, hub 1882 etc.), the control device of wireless is configured to The communication in wireless asymmetrical network framework and power consumption, and multiple first sensor nodes are controlled (for example, sensor node 731、741、751；Sensor node 761,771；Sensor node 788,792；Sensor node n, n+1 etc.), each sensor Node with least one sensor and with transmitter and receiver (or transmitter and receiver function of transceiver) with The wireless device with the two-way communication of the control device of wireless of the first hub is realized in wireless asymmetrical network framework.First collection The control device of wireless of line device is configured to each wireless device and determined in time relative to emitter (or the hair of transceiver Penetrate machine function) launch window close first time period during and relative to receiver, (or transceiver connects in time Receipts machine function) the close second time period of reception window during operate the scheduled timing of each sensor node, it is more to reduce The power consumption of the wireless device of individual first sensor node.
In one example, the first hub is powered by main power source, and multiple first sensor nodes are by battery source or another One energy source (non-main power source) is powered, to form wireless asymmetrical network framework.
In one embodiment, control device of wireless is configured to based on each wireless device from multiple sensor nodes The sequential for receiving communication determines launch window and the reception of emitter (or transmitter function of transceiver) for each wireless device The scheduled timing of the reception window of machine (or receiver function of transceiver).
In one embodiment, each sensor node operates first time period and the second time under the first power consumption levels Section.For example, when outside first time period and second time period, each sensor node can be grasped under the second power consumption levels Make.In this example, the first power consumption levels have the power consumption higher than the second power consumption levels.
In more particularly embodiment, each sensor node operates first time period and second under the first clock speed Period.When outside first time period and second time period, each sensor node operates under second clock speed.With First clock speed is compared, the clock speed that second clock speed can be reduction of, to reduce the work(of each sensor node Consumption.
In one embodiment, at least one sensor node, which utilizes, includes being designed to the rechargeable battery recharged Battery source operated.At least one sensor node may also include capacitor or be coupled to capacitor to come to store From the energy of collection of energy, the collection of energy is used to avoid the depth of battery source from putting by charging to rechargeable battery Electricity.
In another embodiment, at least one sensor node utilizes the battery source for including being not intended to the galvanic cell recharged Operation.At least one sensor node includes capacitor or is coupled to capacitor to store the energy from collection of energy Amount, with to galvanic cell carry out trickle charge, so as to by compensate during operation from battery source draw energy or compensation due to Battery source self discharge and caused by loss increase effective battery capacity.
In one embodiment, the second hub is (for example, hub 720, hub 782, hub 820, hub 964th, hub 984, hub 1882 etc.) include control device of wireless, it is configured to control wireless asymmetrical network framework In communication and power consumption, and multiple second sensor nodes are (for example, sensor node 731,741,751；Sensor node 761、 771；Sensor node 788,792；Sensor node n, n+1 etc.), each sensor node has at least one sensing Device and with transmitter and receiver (or transmitter and receiver function of transceiver) with wireless asymmetrical network framework Realize the wireless device with the two-way communication of the control device of wireless of the second hub.In one example, control device of wireless Each wireless device is configured to determine in time relative to the emitter window of emitter (or transmitter function of transceiver) During the 3rd close period of mouth and in time relative to the reception window of receiver (or receiver function of transceiver) Mouth operates the scheduled timing of each sensor node during the 4th close period, to reduce multiple second sensor nodes The power consumption of wireless device.
In one example, the 3rd period and launch window are the roughly the same periods, and the 4th period is with receiving Window is the roughly the same period.In another example, the 3rd period just started before the period of launch window, And just terminate after launch window.Time segment length 1% to 10% of 3rd period than launch window.4th time Section just starts before the period of window is received, and just terminates after window is received.4th period is than connecing Receive the time segment length 1% to 10% of window.
In one embodiment, wireless asymmetrical network framework includes wireless tree-shaped asymmetrical network framework.In another reality Apply in example, wireless asymmetrical network framework includes wireless tree-shaped and netted asymmetrical network framework.
One based on the embodiment of lower power consumption is made using high frequency band in, the control device of wireless bag of the first hub Include radio frequency (RF) circuit operated on the frequency band more than 2.4 Gigahertzs (GHz).Multiple first nodes it is each without traditional thread binding The transmitter and receiver (or transmitter and receiver function of transceiver) put also works on the frequency band more than 2.4GHz, with Just being minimized for each wireless device makes RF circuits exercisable 3rd period of emitter and enters the RF circuits of receiver 4th period of row operation, to reduce the power consumption of the wireless device of multiple first nodes.
In another embodiment, the RF circuits of the first hub work on the frequency band more than 5GHz.Multiple first nodes Each wireless device transmitter and receiver (or transmitter and receiver function of transceiver) also in the frequency more than 5GHz Work is taken, to make RF circuits exercisable 3rd period of emitter for each wireless device minimum and to make receiver RF circuits exercisable 4th period, to reduce the power consumption of the wireless device of multiple first nodes.
In one embodiment, for providing the equipment of power management features to wireless asymmetrical network framework (for example, collection Line device 610, hub 720, hub 782, hub n, hub 820, hub 964, hub 984, hub 1882) Including the memory (for example, memory 842, memory 961, memory 986, memory 1886) for store instruction, perform Instruct to establish and control the processing logic section of the communication in wireless asymmetrical network framework (for example, one or more processing are single Member, processing logic section 844, processing logic section 963, processing logic section 988, processing logic section 1888), and wireless asymmetric Launch in the network architecture and receive radio frequency (RF) circuit of communication (for example, RF circuits 850, RF circuits 970, RF circuits 992, RF Circuit 1890).Communication is transmitted into multiple sensor nodes by RF circuits, each sensor node have at least one sensor and With transmitter and receiver (or transmitter and receiver function of transceiver) to be realized in wireless asymmetrical network framework With the wireless device of the two-way communication of the RF circuits of equipment.One or more processing unit execute instructions are thought at least one wireless Device is determined in time relative to the close first time period of the launch window of emitter (or transmitter function of transceiver) Period and second time period close relative to the reception window of receiver (or receiver function of transceiver) in time Period operates the scheduled timing of at least one sensor node, to reduce at least one without traditional thread binding of multiple first sensor nodes The power consumption put.
In one example, equipment is powered by main power source, and multiple sensor nodes are (non-by battery source or another energy source Main power source) power supply, to form wireless asymmetrical network framework.
In one embodiment, logic section (for example, one or more processing units) execute instruction is handled with based on from more At least one wireless device of individual sensor node receives the sequential of communication to determine emitter at least one wireless device The scheduled timing of the reception window of launch window and receiver.
In one embodiment, at least one wireless device of at least one sensor node is grasped under the first power consumption levels Make first time period and second time period.When outside first time period and second time period, at least one sensor node Operated under the second power consumption levels.In this example, the first power consumption levels have the power consumption higher than the second power consumption levels.
In more particularly embodiment, at least one wireless device of at least one sensor node is in the first clock speed Lower operation first time period and second time period.When outside first time period and second time period, at least one sensor Node is in second clock speeds.Compared with the first clock speed, clock speed that second clock speed is reduction of, with Reduce the power consumption of at least one sensor node.
In one example, wireless asymmetrical network framework include wireless tree-shaped asymmetrical network framework or it is wireless tree-shaped and It is at least one in netted asymmetrical network framework.
Figure 16 shows to provide the collection with power management features to wireless asymmetrical network framework according to one embodiment The flow chart of the method for line device.The operation of method 1600 can be by wireless device, the control device of wireless of hub (for example, equipment) Or including process circuit or handle the system of logic section and perform.Processing logic section may include hardware (circuit, special logic etc.), The combination of software (such as being run in general-purpose computing system or special purpose machinery or device) or both.In one embodiment, Hub performs the operation of method 1600.
In operation 1602, the method for reducing the power consumption in wireless asymmetrical network framework includes：Utilize hub Radio frequency (RF) circuit come from multiple sensor nodes receive communicate, each sensor node have carries transmitter and receiver (or transmitter and receiver function of transceiver) is to realize with the two-way communication of hub to form wireless asymmetrical network frame The wireless device of structure.In operation 1604, the processing logic section of hub for each wireless device determine in time relative to During the close first time period of the launch window of emitter (or transmitter function of transceiver) and in time relative to Each sensor node is operated during the close second time period of reception window of receiver (or receiver function of transceiver) At least one sensor scheduled timing, to reduce the power consumption of the wireless device of multiple sensor nodes.
In one example, hub is powered by main power source, and multiple nodes are by battery source or another energy source (non-master electricity Source) power supply, to form wireless asymmetrical network framework.
In operation 1606, based on the sequential that communication is received from each wireless device of multiple sensor nodes, collection is utilized The processing logic section of line device is the pre- timing that each wireless device determines the launch window of emitter and the reception window of receiver Sequence.
In one embodiment, each sensor node operates first time period and the second time under the first power consumption levels Section.When outside first time period and second time period, each sensor node operates under the second power consumption levels.Show at this In example, the first power consumption levels have the power consumption higher than the second power consumption levels.
In more particularly embodiment, each sensor node operates first time period and second under the first clock speed Period.When outside first time period and second time period, each sensor node operates under second clock speed. In the example, compared with the first clock speed, clock speed that second clock speed is reduction of, to reduce each sensor section The power consumption of point.
In one embodiment, wireless asymmetrical network framework includes wireless tree-shaped asymmetrical network framework.In another reality Apply in example, wireless asymmetrical network framework includes wireless tree-shaped and netted asymmetrical network framework.
Embodiments of the invention indoors with neighbouring environment by wireless sensor network node provide overall cell Improvement is provided in terms of the life-span.In one embodiment, this can be additionally by battery powered terminal node, any battery The node of power supply is realized with implementation collection of energy on any node of replacement energy source be connected with power supply.Energy is received It is real that vibration collection, light energy collection, thermal energy collecting, wireless energy collection and/or other this energy collection technologies can be used for collection It is existing.In vibration energy harvesting, the vibration in sensor node environment is available for the quality in boost sensor node system (mass) motion.This can be used for for example by causing the deflection of piezoelectric structure, or by being produced relative to coil moving magnet Raw electric energy.Then, resulting electric energy can be stored in capacitor, or is carried out available for the battery in sensor node Charging.
Figure 19 shows the vibration energy harvesting for being used to provide supplement energy source to sensor node according to one embodiment The block diagram of system.Vibrational energy collector circuit 1910 may include piezoelectric generator or electromagnetic mass block system (electromagnetic proof mass system), wherein vibration causes motion of the coil relative to magnet, and this quilt For producing electric power, it is provided to rectifying and voltage-stabilizing power regulation block (rectifier regulator power conditioning block)1920.The block 1920 includes the one or more electricity for rectification, voltage stabilizing and power regulation functions Road.The block 1920 is received as caused by collector not via connecting portion 1912 (for example, communication link, signal wire, electrical connection etc.) Rule and/or alternating current, rectification and filtering are carried out to irregular and/or alternating current, and by its voltage stabilizing into sensor section The suitable voltage used in point.Then, the output of block 1920 provides via connecting portion 1922 and arrives capacitive energy memory block 1930.Capacitive energy memory block 1930 includes at least one storage, and it stores collected energy as supplement energy Source, used for the sensing and telecommunication circuit 1960 of sensor node.Sensing and telecommunication circuit 1960 include sensing circuit 1961 With telecommunication circuit 1962.Then, the electric power selector block 1940 with selection mechanism is used for when that can be obtained via connection 1932 Supplied from the electric power of at least one storage selection, or use via connection 1952 from galvanic cell battery source 1950 Electric power.By this way, collection of energy can be used cooperatively with non-rechargeable battery (that is, galvanic cell battery source 1950), be thought The electric power that the operation supplement battery for the sensor node for maintaining to include the operation of sensing and telecommunication circuit 1960 provides.
Alternatively, in another embodiment, system is configured to rechargeable battery；In this case, collect Device can be alternatively used to charge to battery.Figure 20 shows to be used for the chargeable of sensor node according to another embodiment The block diagram for the vibration energy harvesting system that battery is charged.Vibrational energy collector circuit 2010 may include piezoelectric generator or Electromagnetic protection quality system, wherein vibration causes motion of the coil relative to magnet, and this is used to electric power, and it is carried Supply rectifying and voltage-stabilizing power adjusting battery charger block 2020.The block 2020 includes being used for rectification, voltage stabilizing, power adjusting and battery One or more circuits of charger function.The block 2020 is via connecting portion 2012 (for example, communication link, signal wire, electrical connection Deng) the irregular and/or alternating current as caused by collector is received, rectification and filtering are carried out to irregular and/or alternating current, And by its voltage stabilizing into the suitable voltage used in sensor node.Then, the output of block 2020 carries via connecting portion 2022 It is supplied to rechargeable battery power supply 2030.Rechargeable unit battery source 2030 to the sensing of sensor node and leads to via connection 2032 Letter 2060 provides electric power.Sensing and telecommunication circuit 2060 include sensing circuit 2061 and telecommunication circuit 2062.By this way, may be used Maintain to include sensing and lead to think rechargeable battery (that is, rechargeable unit battery source 2030) charging using collection of energy Believe the electric power that the operation supplement battery of the sensor node of the operation of circuit 2060 provides.
In light energy collection, photovoltaic cell can be used for producing electric energy, including sunlight, room lighting, outdoor people from incident light Work illuminates and other this light sources.Then, resulting electric energy can be stored in capacitor, or available for sensing Battery in device node is charged.Figure 21 shows to be used to enter the rechargeable battery of sensor node according to one embodiment The block diagram of the photovoltaic energy collection system of row charging.Photovoltaic energy collecting circuit 2110 includes photovoltaic generator, and it can include and use In the one or more photovoltaic cells for producing electric power.Photovoltaic energy collecting circuit 2110 is coupled to power via connection 2112 End cell charger block 2120.The output power of circuit 2110 by power governor battery charger block 2120 power Adjuster is adjusted and be used to charge to rechargeable cell 2130.Power governor battery charger block 2120 via Connecting portion 2122 is connected to rechargeable cell 2130.Then, rechargeable cell 2130 is again via connecting portion 2132 The sensing of sensor node and the operation of telecommunication circuit 2140 provide electric power.Sensing and telecommunication circuit 2140 include sensing circuit 2141 and telecommunication circuit 2142.By this way, battery life can be extended by using collection of energy.For example, collection of energy Self discharge available for balancing battery source.In another example, collection of energy can be used for being typically not designed to secondary cell The battery trickle charge of purposes.
In thermal energy collecting, available heat energy can be converted to produce electric energy by electric energy by using thermoelectric device.Then, It can be stored in capacitor, or is charged available for the battery in sensor node.
In wireless energy collection, the incident RF energy of day line drawing can be used, through over commutation, be then used to passing Capacitor or battery charging in sensor node.The source of RF energy can be 2.4Gz or 5GHz WiFi, 1.8GHz DECT Or available for any other RF signal extracted at sensor node.In one embodiment, RF signals can pass through hub Or the RF generators by being placed in the physical coverage area of wireless sensor network are expressly supplied to terminal node.
In one embodiment, the energy from collection of energy can be stored in capacitor, and it can be used for replenishing behaviour The energy drawn during work from battery.In another embodiment, the energy from collection of energy can be used for recharging battery. In the embodiment, battery can be to recharge the rechargeable battery specially designed, or can generally be not intended to recharge Galvanic cell.In the embodiment of rechargeable battery, collection of energy can be used to avoid the deep discharge of battery, so as to extend electricity The pond life-span.
In the embodiment of galvanic cell, the energy of collection can be used for battery trickle charge, so as to for example be existed by compensation The energy drawn during operation from battery, or compensation are held due to being lost caused by the self discharge of battery to increase effective battery Amount.In one embodiment, the trickle charge of battery can be maintained at sufficiently low level to avoid damaging battery.In another reality Apply in example, pulse charge can be used to prevent the damage to battery.
Various batteries, including such as lithium base of lithium ion, lighium polymer, lithium phosphate can be used in wireless sensor node Chemical substance, and to the obvious other this chemical substances of those of ordinary skill in the art.Other workable chemistry Material includes nickel metal hydride, standard alkaline batteries chemical substance, silver-colored zinc and zinc-air battery chemical substance, standard carbon zinc electricity Pond chemical substance, lead-acid battery chemical substance, or to any other obvious chemical substance of those of ordinary skill in the art.
The invention further relates to a kind of apparatus for performing the operations herein.The equipment can be required purpose and special structure Make, or it may include the general-purpose computations that are optionally activated or reconfigured by by the computer program stored in a computer Machine.This computer program can be stored in computer-readable recording medium, such as, but not limited to including floppy disk, CD, CD- ROM and magneto-optic disk any kind of disk, read-only storage (ROM), random access memory (RAM), EPROM, EEPROM, magnetically or optically block, or suitable for storing any kind of medium of e-command.
Algorithms and displays presented herein is not inherently related to any specific computer or miscellaneous equipment.It is various logical It can be used together according to teaching herein content with program with system, or its provable is performed to construction more specialized apparatus Required method operation is convenient.
Figure 17 shows the block diagram of the sensor node according to one embodiment.Sensor node 1700 includes power supply 1710 (for example, energy source, battery source, galvanic cell 1950, rechargeable battery 2030, rechargeable battery 2130 etc.), it is via connecting portion 1774 (for example, communication link, signal wire, electrical connections etc.) provide electric power (for example, DC electric power) to controller circuitry 1720, via Connecting portion 1776 (for example, communication link, signal wire, electrical connection etc.) provides electric power to RF circuits 1770, via connecting portion 1746 (for example, communication link, signal wire, electrical connection etc.) is provided through electric power to sensing circuit 1740.Controller circuitry 1720 includes depositing Reservoir 1761 is connected to memory, and it stores the processing logic section 1763 by controller circuitry 1720 (for example, one or more Processing unit) instruction that performs, formed and the sensor section of monitoring wireless asymmetrical network as discussed herein for controlling The operation of point.RF circuits 1770 (for example, telecommunication circuit) may include for via antenna 1778 and hub and optionally wireless The transceiver or single emitter 1775 and the function of receiver 1777 of two-way communication are launched and received to sensor node.RF Circuit 1770 is via connecting portion 1772 (for example, electrical connection) and the two-way communication of controller circuitry 1720.Sensing circuit 1740 includes Various types of sensing circuits and sensor, it includes imaging sensor and circuit 1742, moisture sensor and circuit 1743, temperature Spend sensor and circuit, humidity sensor and circuit, air mass sensor and circuit, optical sensor and circuit, motion-sensing Device and circuit 1744, audio sensor and circuit 1745, sensor and circuit n etc..
In one embodiment, sensing circuit and RF circuits be it is integrated (for example, sensing and telecommunication circuit 1960,2060, 2140).In another embodiment, Figure 19, Figure 20 and Figure 21 sensing and telecommunication circuit 1960,2060 and 2140 are respectively positioned at figure In at least one in 17 sensing circuit 1740, controller circuitry 1720 and RF circuits 1770.In one example, sensing electricity Road (for example, 1961,2061,2411) is located in sensing circuit 1740 or integrated with sensing circuit 1740, and telecommunication circuit 1962nd, 2062 and 2142 in RF circuits 1770 or controller circuitry 1720 or with RF circuits 1770 or controller circuitry 1720 is integrated.
In one embodiment, vibration energy harvesting system 1900 and 2000, the part of light energy collecting system 2100 and biography Sensor node 1700 is integrated.For example, vibration collecting circuit 1910, rectifying and voltage-stabilizing power governor 1920 and capacitive energy storage Portion 1930 be coupled to power supply selection 1940, the electric power selector 1940 be connected to galvanic cell 1950 (for example, power supply 1710) with Sensing and telecommunication circuit 1960 (for example, sensing circuit 1740 and RF circuits 1770).In another example, collecting circuit is vibrated 1910th, rectifying and voltage-stabilizing power governor 1920, capacitive energy storage part 1930, power supply selection 1940 and galvanic cell 1950 and power supply 1710 is integrated.
In another example, vibrate collecting circuit 2010 and rectifying and voltage-stabilizing power governor battery charger 2020 is connected to Rechargeable battery 2030 (for example, power supply 1710), or vibration collecting circuit 2010 and rectifying and voltage-stabilizing power governor battery fill Electrical equipment 2020 is integrated with power supply 1710.
In another example, photovoltaic collection electrical equipment road 2110 and power governor battery charger 2120 are connected to and can filled Battery 2130 (for example, power supply 1710), or photovoltaic collector circuit 2110 and power governor battery charger 2120 with Power supply 1710 is integrated.
Sensor node 1700 can be wireless device 1700, or can form wireless device as discussed herein The combination of controller circuitry 1720, RF circuits 1770, sensing circuit 1740 and antenna 1778.
In one embodiment, the sensor node (for example, wireless device) for wireless asymmetrical network framework includes At least one sensor, the memory for store instruction and the processing logic for being connected to memory and at least one sensor Portion.The processing logic section is performed for handling the data received from least one sensor and being used to handle the logical of sensor node The instruction of letter.Sensor node also includes radio frequency (RF) circuit for being connected to processing logic section.RF circuits include (being hair respectively Penetrate machine and receiver or transceiver) transmitter and receiver function, so that communication to be launched in wireless asymmetrical network framework Receive to hub and from hub and communicate.The processing logic section is configured to perform the instruction of scheduled timing, so that emitter Function is operable as launching and makes receiver function be operable as receiving, to reduce the power consumption of sensor node.
In one example, sensor node is powered by battery source or another energy source (non-main power source).
In one embodiment, the sequential based on the communication that hub is transmitted into from sensor node, received from hub The instruction of scheduled timing.In another embodiment, scheduled timing by sensor node or another sensor node by least Partly determine.
In one embodiment, transmitter function is operable as first time period of the transmitting less than 5%, and receiver work( It can be operable as receiving the first time period less than 5%.In one example, transmitter function is operable as transmitting and is less than 1% First time period, and receiver function is operable as receiving 1% first time period that is less than.
In one embodiment, the RF circuits of sensor node are in the frequency band operation more than 2.4 Gigahertzs, with minimum Change the period for launching in the transmission mode.In another embodiment, the RF circuits of sensor node are more than 6 gigahertzs Frequency band operation hereby, to minimize the period for being used for launching in the transmission mode.
In one embodiment, for wireless asymmetrical network framework sensor node include at least one sensor, For store instruction memory and be connected to the processing logic section of memory and at least one sensor.The processing logic section Perform the instruction for handling the data received from least one sensor and the communication for handling sensor node.Sensor Node also includes radio frequency (RF) circuit for being connected to processing logic section.It (is transmitter and receiver or receipts respectively that RF circuits, which include, Send out device) transmitter and receiver function, so that communication is transmitted into hub and from line concentration in the wireless asymmetrical network framework Device receives communication.Processing logic section is configured to execute instruction to determine in time relative to the launch window of transmitter function The window close second time period phase is received during close first time period and in time relative to receiver function Between operate the scheduled timing of at least one sensor node, to reduce the power consumption of sensor node.
In one example, first time period and launch window are the roughly the same periods, and second time period is with receiving Window is the roughly the same period.In another example, first time period just starts before the period of launch window, And just terminate after launch window.Time segment length 1% to 10% of the first time period than launch window.Second time Section just starts before the period of window is received, and just terminates after window is received.Second time period is comparable to be connect Receive the time segment length 1% to 10% of window.
In one example, sensor node is powered by battery source or another energy source (non-main power source).
In one embodiment, if battery is chargeable, sensor node is utilized to come from and is stored directly in the battery , or be stored in couple with sensor node or with sensor node integrate capacitor in collection of energy battery source or Energy operates.Energy from collection of energy is used to supplement the energy drawn from battery source during operation.
In one embodiment, sensor node operates first time period and second time period under the first power consumption levels. When outside first time period and second time period, sensor node can operate under the second power consumption levels.In this example, First power consumption levels have the power consumption higher than the second power consumption levels.
In one embodiment, for wireless asymmetrical network framework sensor node include at least one sensor, For store instruction memory and be connected to the processing logic section of memory and at least one sensor.Processing logic section is held Row is used to handle the data from the reception of at least one sensor (for example, view data, exercise data, humidity data, temperature data Deng) and for handling instruction that is receiving or treating the communication for sensor node transmitting.Sensor node also includes connection everywhere Manage radio frequency (RF) circuit of logic section.RF circuits include transmitter and receiver function, with wireless asymmetrical network framework Communication is transmitted into hub and received from hub and is communicated.Processing logic section is configured to processing and led to from what hub received Letter, the launch window of the transmitter function of the communication indication sensor node and the reception window of receiver function, it is anti-to provide Conflict feature is to avoid the conflict of the communication in wireless asymmetrical network framework.
In one example, sensor node is powered by battery source or another energy source.
In one embodiment, processing logic section is configured to execute instruction and receives communication to handle from hub, should The next launch window of indication sensor node that communicates and the skew of next reception window.Processing logic section is also configured to work as When hub determines that the communication that is received from sensor node and another node has occurred and that conflict, execute instruction is to generate at least One random number, and window by the following launch window of sensor node and/or following is received based at least one random number Mouthful in it is at least one enter line displacement.
In one embodiment, the non-transitory media (for example, memory) of machine-accessible includes executable computer journey Sequence instructs, and when it is performed by data handling system, causes system to perform any method being discussed herein.Although machine-accessible Non-transitory media be shown as single medium in the exemplary embodiment, but term " non-transitory media of machine-accessible " should When be believed to comprise to store one or more groups of instructions single medium or multiple media (for example, centralized or distributed database, And/or the cache and server being associated).Term " non-transitory media of machine-accessible " should be also believed to comprise can One group of instruction of any one or more methods that storage, coding or carrying are performed by machine and making the machine execution present invention Any medium.Therefore, term " non-transitory media of machine-accessible " should be believed to comprise but be not limited to solid-state memory, optics With magnetic medium and carrier signal.
For providing the equipment of power management features to wireless asymmetrical network framework (for example, hub 610, hub 720th, hub 782, hub n, hub 820, hub 964, hub 984, hub 1882) include referring to for storage The memory (for example, memory 842, memory 961, memory 986, memory 1886) of order, execute instruction are established and controlled The processing logic section of the communication in wireless asymmetrical network framework is made (for example, one or more processing units, processing logic section 844th, logic section 963, processing logic section 988, processing logic section 1888 are handled), and radio frequency (RF) circuit is (for example, RF circuits 850th, RF circuits 970, RF circuits 992, RF circuits 1890).
In one embodiment, equipment is (for example, hub 610, hub 720, hub 782, hub n, line concentration Device 820, hub 964, hub 984, hub 1882 etc.) it is control device of wireless, or including control device of wireless, use In the wireless asymmetrical network framework of offer.Equipment includes the memory for store instruction (for example, memory 842, memory 961st, memory 986, memory 1886), the place of the communication in wireless asymmetrical network framework is established and controlled to execute instruction Manage logic section (for example, one or more processing units, processing logic section 844, processing logic section 963, processing logic section 988, Handle logic section 1888), and in wireless asymmetrical network framework launch and receive communication RF circuits (for example, transceiver, RF circuits 850, RF circuits 970, RF circuits 992, RF circuits 1890).Communication is transmitted into multiple nodes, each node by RF circuits With with transmitter and receiver with wireless asymmetrical network framework realize with the two-way communication of RF circuits without traditional thread binding Put.Processing logic section is configured to execute instruction and thinks that each wireless device is determined so that emitter is operable as launching and caused Receiver is operable as the scheduled timing received, to reduce the power consumption of the wireless device of multiple nodes.
In one example, equipment is powered by main power source, multiple each free battery sources of node or another energy source (non-master electricity Source) power supply, to form wireless asymmetrical network.
The sequential of communication between each wireless device of transceiver and node based on equipment is come for each wireless device It is defined as emitter power supply and the scheduled timing for receiver power supply.In one example, based on from least one wireless device The sequential to be communicated to the RF circuit transmissions of equipment is true at least one wireless device of the terminal node of node (or other nodes) Surely so that receiver is operable as the scheduled timing received.
In another example, the sequential based on the transmitting communication from the wireless device of node to equipment, equipment recognize node Wireless device receiver it is when in running order (for example, in a receive mode).If for example, transmitting of wireless device Machine is launched to equipment to communicate, then the equipment by know can be terminal node or the wireless device of other nodes receiver at this Communication is launched into running order in a period of time after equipment.
In one embodiment, the emitter of each wireless device be operable as transmitting less than certain percentage (for example, 5%th, 1%) period, and the receiver of each wireless device be operable as receiving less than certain percentage (for example, 5%, 1%) period.
In one example, wireless asymmetrical network framework include wireless tree-shaped asymmetrical network framework or it is wireless tree-shaped and It is at least one in netted asymmetrical network framework.
Figure 18 shows the block diagram of the system 1800 with hub according to one embodiment.System 1800 includes line concentration The central hub of device 1882 or wireless asymmetrical network framework, or with hub 1882 or wireless asymmetrical network framework Central hub integrates.System 1800 (for example, computing device, intelligent TV, intelligent electric appliance, communication system etc.) can with for launching With receive radio communication any kind of wireless device (for example, cell phone, radio telephone, tablet personal computer, computing device, Intelligent TV, intelligent electric appliance etc.) communication.System 1800 includes processing system 1810, and it includes controller 1820 and processing unit 1814.Processing system 1810 respectively via one or more bidirectional communication links or signal wire 1898,1818,1815,1816, 1817th, 1813,1819,1811 with following communication：Hub 1882, input/output (I/O) unit 1830, radio frequency (RF) circuit 1870th, voicefrequency circuit 1860, the Optical devices 1880 for capturing one or more images or video, for for system 1800 it is true Determine the optional moving cell 1844 (for example, accelerometer, gyroscope etc.), power management system of exercise data (for example, three-dimensional) 1840 and the non-transitory media 1850 of machine-accessible.
Hub 1882 includes power supply 1891, and it is via connecting portion 1885 (for example, communication link, signal wire, electrical connection Deng) to the offer electric power of controller circuitry 1884 (for example, D/C power), and via connecting portion 1887 (for example, communication link, signal Line, electrical connection etc.) to RF circuits 1890 provide electric power.Controller circuitry 1884 includes memory 1886 or is coupled to storage Device, it stores the instruction performed by the processing logic section 1888 (for example, one or more processing units) of controller circuitry 1884, It is used to be formed and monitored as discussed herein the wirelessly operation of the hub of asymmetrical network for controlling.RF circuits 1890 can Including the transmitting-receiving for being launched and being received two-way communication via antenna 1896 and wireless sensor node or other hubs Device or single emitter (TX) 1892 and the function of receiver (RX) 1894.RF circuits 1890 are via connection 1889 (for example, communication Link, signal wire, electrical connection etc.) and the two-way communication of controller circuitry 1884.Hub 1882 can be control device of wireless 1884 can either form the controller circuitry 1884, RF circuits 1890 and antenna of control device of wireless as discussed herein 1896 combination.
The RF circuits 1870 and antenna 1871 of system or the RF circuits 1890 and antenna 1896 of hub 1882 are used to pass through Radio Link or network are launched and connect to other the one or more wireless devices for the hub or sensor node being discussed herein Collect mail and cease.Voicefrequency circuit 1860 is connected to audio tweeter 1862 and microphone 1064, and including for handling voice signal Known circuit.One or more processing units 1814 are via controller 1820 and the nonvolatile of one or more machine-accessibles Medium 1850 (for example, computer-readable medium) is communicated.Medium 1850 can store to be handled by one or more The code and/or any device or medium (for example, storage device, storage medium) of data that unit 1814 uses.Medium 1850 It may include storage hierarchy, it includes but is not limited to cache, main storage and additional storage.
Medium 1850 or the storage of memory 1886 embody one group of any one or more of method or function as described herein Or multigroup instruction (or software).Software may include operating system 1852, for establishing, being monitored and controlled wireless asymmetrical network frame The web server software 1856 of structure, communication module 1854 and application 1858 are (for example, house or building safety application, house or build Build the application of thing integrality, developer's application etc.).During software is performed by device 1800, software can also fully or at least portion Reside in dividing in medium 1850, memory 1886, processing logic section 1888 or processing unit 1814.Part shown in Figure 18 can Implement in hardware, software, firmware or its any combinations, including one or more signal transactings and/or application specific integrated circuit.
Communication module 1854 allows to be communicated with other devices.I/O units 1830 and different types of input/output (I/O) device 1834 is (for example, display, liquid crystal display (LCD), plasma scope, cathode-ray tube (CRT), touch Display device or touch-screen, optional alphanumeric input device for receiving user's input and display output) communication.
In foregoing specification, the present invention is described with reference to the specific illustrative embodiment of the present invention.However, will It is readily apparent that in the case where not departing from the wider spirit and scope of the present invention, various modifications can be carried out to it And change.Therefore, specification and drawings are considered as illustrative and not restrictive.

Claims (109)

1. a kind of system for providing wireless asymmetrical network, it includes：
First hub, it has the controlled in wireless dress for being configured to control communication and power consumption in wireless asymmetrical network framework Put；And
Multiple first nodes, each node have with transmitter and receiver with the wireless asymmetrical network framework The wireless device with the two-way communication of the control device of wireless of first hub is realized, wherein the control device of wireless quilt Each wireless device is configured as to determine so that the emitter is operable as launching and so that the receiver is operable as connecing The scheduled timing of receipts, to reduce the power consumption of the wireless device of the multiple node.
2. system according to claim 1, wherein first hub is by main power source power supply and the multiple first Each free battery source power supply of node, to form the wireless asymmetrical network.
3. system according to claim 1, wherein each wireless based on the hub and the multiple first node The sequential of communication between device, it is that each wireless device of the multiple first node determines make it that the emitter is operable For launch and so that the receiver be operable as receive the scheduled timing.
4. system according to claim 1, wherein the emitter of each wireless device of the multiple first node can be grasped As first time period of the transmitting less than 5%, and the receiver of each wireless device of the multiple first node is operable To receive 5% first time period being less than, wherein when the transmitter and receiver of the wireless device is not used by operation respectively When transmitting and reception, the multiple first node is in non-communicating state.
5. system according to claim 1, it further comprises：
Second hub, it has the wireless controlled for being configured to control communication and power consumption in the wireless asymmetrical network framework Device processed；And
Multiple section points, each node have with transmitter and receiver with the wireless asymmetrical network framework The wireless device with the two-way communication of the control device of wireless of second hub is realized, wherein the second control device Each wireless device that control device of wireless is configured to the multiple section point determines make it that the emitter is operable To launch and so that the receiver is operable as the scheduled timing received, to reduce the described wireless of the multiple section point The power consumption of device.
6. system according to claim 1, wherein the wireless asymmetrical network framework includes wireless tree-shaped asymmetric net Network framework.
7. system according to claim 1, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted non- Symmetrical network framework.
8. system according to claim 1, wherein second hub with the control device of wireless is configured Communicated into launching to first hub, and it is described wireless for controlling and monitoring from first hub reception communication Asymmetrical network framework.
9. system according to claim 1, wherein based on the communication launched from the wireless device to the hub Sequential, determine to cause the receiver to be operable as what is received for the wireless device of the terminal node in the multiple first node Scheduled timing.
10. system according to claim 1, it is more than wherein the control device of wireless of first hub is included in Radio frequency (RF) circuit operated on the frequency band of 2.4 Gigahertzs (GHz), wherein each wireless device of the multiple first node The emitter and the receiver also operated on the frequency band more than 2.4GHz, so as to for each wireless device minimize make The RF circuits for obtaining the emitter are operable as the second time period of transmitting, and make it that the RF circuits of the receiver are operable For the 3rd period of reception, to reduce the power consumption of the wireless device of the multiple first node.
11. system according to claim 10, wherein the RF circuits of first hub are on the frequency band more than 5GHz Operation, wherein the emitter and the receiver of each wireless device of the multiple first node are also more than 5GHz's Operated on frequency band, when causing the RF circuits of the emitter to be operable as the second of transmitting to be minimized for each wireless device Between section, and cause the receiver RF circuits be operable as receive the 3rd period, to reduce the multiple first segment The power consumption of the wireless device of point.
12. a kind of equipment for providing wireless asymmetrical network framework, it includes：
Memory, it is used for store instruction；
One or more processing units, it is used for execute instruction and communicated with establishing and controlling in wireless asymmetrical network framework； And
Radio frequency (RF) circuit, it is used to launching and receiving communication in wireless asymmetrical network framework, and the RF circuits will communicate Multiple nodes are transmitted into, each node has with transmitter and receiver with the wireless asymmetrical network framework The wireless device with the two-way communication of the RF circuits of the equipment is realized, wherein one or more of processing units are configured to Execute instruction thinks that each wireless device is determined so that the emitter is operable as launching and make it that the receiver is operable For the scheduled timing of reception, to reduce the power consumption of the wireless device of the multiple node.
13. equipment according to claim 12, wherein the equipment is powered by main power source, each freely electricity of the multiple node Chi Yuan or another energy sources are powered, to form the wireless asymmetrical network.
14. equipment according to claim 12, wherein the transceiver based on the equipment and the node is each wireless The sequential of communication between device, determine make it that the emitter is operable as launching and so that described connect for each wireless device Receipts machine is operable as the scheduled timing received.
15. equipment according to claim 12, wherein based on the RF from least one wireless device to the equipment The sequential of the communication of circuit transmission determines to cause the receiver at least one wireless device of the terminal node of the node It is operable as the scheduled timing received.
16. equipment according to claim 12, wherein the emitter of each wireless device is operable as transmitting and is less than 5% first time period, and the receiver of each wireless device is operable as receiving the first time period less than 5%.
17. equipment according to claim 12, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric It is at least one in the network architecture or wireless tree-shaped and netted asymmetrical network framework.
18. equipment according to claim 12, wherein the equipment is based on from the wireless device of the node to institute State the sequential of the communication of equipment transmitting, it is thus understood that when the receiver of the wireless device of the node is in moving type State.
19. equipment according to claim 12, wherein the RF circuits of the equipment are on the frequency band more than 2.4GHz Operation, wherein the emitter and the receiver of each wireless device of the multiple first node are also more than 2.4GHz Frequency band on operate, so as to be each wireless device minimize cause the emitter RF circuits be operable as transmitting second Period, and cause the RF circuits of the receiver to be operable as the 3rd period received, to reduce the multiple first The power consumption of the wireless device of node.
20. a kind of method for being used to reduce the power consumption in wireless asymmetrical network framework, it includes：
Received and communicated from multiple sensor nodes using the processing logic section of hub, each node have with emitter and Receiver forms the wireless device of the wireless asymmetrical network framework to realize the two-way communication with hub；And
Using the processing logic section of the hub, determine to cause the emitter to be operable as transmitting simultaneously for each wireless device So that the receiver is operable as the scheduled timing received, to reduce the wireless device of the multiple sensor node Power consumption.
21. according to the method for claim 20, wherein the hub is powered by main power source, the multiple each freedom of node Battery source is powered, to form the wireless asymmetrical network framework.
It is 22. according to the method for claim 20, wherein each without traditional thread binding based on the hub and the multiple node The sequential of communication between putting, determine to cause the emitter to be operable as launching for each wireless device and cause the reception Machine is operable as the scheduled timing received.
23. according to the method for claim 20, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture.
24. according to the method for claim 20, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted Asymmetrical network framework.
25. according to the method for claim 20, wherein being based on sending out to the hub from least one wireless device The sequential for the communication penetrated determines to cause receiver to be operable as the pre- of reception at least one wireless device of the multiple node Timing sequence.
26. a kind of sensor node for wireless asymmetrical network framework, it includes：
At least one sensor；
Memory, it is used for store instruction；
Logic section is handled, it is connected to the memory and at least one sensor, and the processing logic section, which performs, to be used for Handle the data received from least one sensor and the instruction for handling the communication for the sensor node；With And
Radio frequency (RF) circuit, it is connected to the processing logic section, and the RF circuits include transmitter and receiver function, with Launch communication to the hub in the wireless asymmetrical network framework and received from the hub and communicate, wherein described Processing logic section is configured to perform the instruction of scheduled timing, to cause the transmitter function to be operable as launching, and causes The receiver function is operable as receiving, to reduce the power consumption of the sensor node.
27. sensor node according to claim 26, wherein the sensor node is by battery source or another energy source Power supply.
28. sensor node according to claim 26, based on from the sensor node to the transmitting of the hub Communication sequential, the instruction of the scheduled timing is received from the hub.
29. sensor node according to claim 26, wherein the transmitter function, which is operable as transmitting, is less than 5% First time period, and the receiver function is operable as receiving 5% first time period being less than.
30. sensor node according to claim 26, wherein the RF circuits of the sensor node more than Operated on 2.4GHz frequency band.
31. a kind of system for providing wireless asymmetrical network framework, it includes：
First hub, it has the controlled in wireless dress for being configured to control the communication in the wireless asymmetrical network framework Put；And
Multiple first nodes, each node have with transmitter and receiver with the wireless asymmetrical network framework The wireless device with the two-way communication of the control device of wireless of first hub is realized, wherein the institute of first hub The communication that control device of wireless is configured to detect the first node from the multiple first node is stated, determines the communication At least a portion for first hub circuit or whether be coupled to the circuit of first hub be to manage Solution, and when the communication at least a portion for first hub circuit or be coupled to first line concentration When the circuit of device is unintelligible, it is determined that the communication launched from the first node and section point in the roughly the same time is It is no to have occurred and that conflict.
32. system according to claim 31, wherein the control device of wireless of first hub is further It is configured to when it is determined that conflict may be had occurred and that, calculate the next or receipt of subsequent of the first node and the section point Window.
33. system according to claim 32, wherein the control device of wireless of first hub is further Be configured to the respective first node and the section point receive window during use instruction for each node to Each of the first node and the section point transmitting communication, by next launch window with the different periods or with The period that machine determines enters line displacement.
34. system according to claim 31, wherein the control device of wireless of first hub is further Be configured to when determine the communication for first hub or to be coupled to the circuit of first hub be to manage Solution when, determine the mark of the first node, determine the next or receipt of subsequent window of the first node, and if need Will, communication is transmitted into the first node during identified next or receipt of subsequent window.
35. system according to claim 31, wherein the control device of wireless of first hub is further It is configured to determine that conflict may not occur, determines the next or receipt of subsequent window of the first node, and from described first Hub is launched to the first node to communicate, and the communication request repeats to send out from the first node to first hub Penetrate communication.
36. system according to claim 31, wherein first hub is powered by main power source, the multiple first segment Point is powered by battery source or another energy source, to form the wireless asymmetrical network framework.
37. system according to claim 31, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture.
38. system according to claim 31, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted Asymmetrical network framework.
39. system according to claim 31, it further comprises：
Second hub, it has the control device of wireless for being configured to control the communication in wireless asymmetrical network framework；With And
Multiple section points, each node have with transmitter and receiver with the wireless asymmetrical network framework The wireless device with the two-way communication of the control device of wireless of second hub is realized, wherein the institute of second hub State control device of wireless be configured to determine the multiple section point each wireless device emitter launch window and The reception window of receiver, and anti-collision feature is provided to avoid from the wireless device reception of the multiple section point The conflict of communication.
40. system according to claim 31, wherein second hub with the control device of wireless by with It is set to launch to first hub and communicates, and receives communication from first hub and be used to controlling and monitoring the nothing Line asymmetrical network framework.
41. a kind of equipment for providing wireless asymmetrical network framework, it includes：
Memory, it is used for store instruction；
One or more processing units, it is logical to establish and control in the wireless asymmetrical network framework that it is used for execute instruction Letter；And
Radio frequency (RF) circuit, it is used for the transmitting in the wireless asymmetrical network framework and receives communication, and the RF circuits will Communication is transmitted into multiple nodes, and each node has with transmitter and receiver with the wireless asymmetrical network frame The wireless device with the two-way communication of the RF circuits is realized in structure, wherein one or more of processing units are configured to hold Row is instructed to determine the launch window of emitter of each wireless device to equipment transmitting communication and the reception of receiver Window, and anti-collision feature is provided to avoid the conflict of the communication from wireless device reception.
42. equipment according to claim 41, wherein the equipment is powered by main power source, the multiple node is by battery Source or the power supply of another energy source, to form the wireless asymmetrical network.
43. equipment according to claim 41, wherein one or more of processing units be configured to execute instruction with It is determined that whether the communication received from first node may have occurred and that conflict, and if from the first node and the second section The communication of point may clash, and calculate the next or receipt of subsequent window of the first node and the section point.
44. equipment according to claim 43, wherein one or more of processing units be configured to execute instruction with To communicate be transmitted into the first node and the section point each so that each node by next launch window with not Same period or the period determined at random enter line displacement.
45. equipment according to claim 44, wherein one or more of processing units are configured to when from described the When the conflict occurs for the communication that one node and the section point receive, execute instruction to generate at least one random number, and And the first node and the following launch window of the section point or future are connect based at least one random number Receive window in it is at least one enter line displacement.
46. equipment according to claim 41, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture.
47. equipment according to claim 41, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted Asymmetrical network framework.
48. equipment according to claim 41, wherein the wireless asymmetrical network framework is in building or described builds Build thing nearby to implement, to ensure and monitor in the building or neighbouring situation.
49. a kind of method of the arbitration and conflict avoidance of the communication being used in wireless asymmetrical network framework, it includes：
Utilize at least one node of multiple nodes of the reception machine testing of hub in wireless asymmetrical network framework Communication, wherein each node is with described to be formed with the two-way communication of the hub to realize with transmitter and receiver The wireless device of wireless asymmetrical network framework；
Using the processing logic section of the hub determine at least a portion of the communication for the circuit of the hub or Whether the circuit for being coupled to the hub is impenetrable；
When the communication at least a portion for the hub circuit or to be coupled to the circuit of the hub be not When intelligible, the communication for determining from different nodes to launch in the roughly the same time using the processing logic section of the hub is It is no to have occurred and that conflict；And
When that may clash, next or rear continued access is calculated for the different nodes using the processing logic section of the hub Receive window.
50. according to the method for claim 49, further comprise：
When conflict may occur, during the reception window of the different nodes, using the emitter of the hub to institute State different nodes each transmitting communication, it is described communication with for each node instruction, by next launch window with Different periods or the period determined at random enter line displacement.
51. according to the method for claim 49, it further comprises：
Determine to launch the mark of the node of the communication using the processing logic section of the hub；
When it is determined that the communication for the circuit of the hub or when to be coupled to the circuit of the hub be intelligible, Next or receipt of subsequent window is determined for the node；And
If desired, communication is transmitted into the section using the hub during identified next or receipt of subsequent window Point.
52. according to the method for claim 49, it further comprises：
Being determined using the processing logic section of the hub can from the communication of the different node transmittings in the roughly the same time It will not can clash；
Using the processing logic section of the hub, next or receipt of subsequent window is determined to launch the node of the communication Mouthful, at least a portion of the communication for the hub circuit or to be coupled to the circuit of the hub be to manage Solution.
During next determined by the node or receipt of subsequent window, launch from the hub to the node logical Letter, the communication request communicate from the node repeat its transmission.
53. a kind of sensor node for wireless asymmetrical network framework, it includes：
At least one sensor；
Memory, it is used for store instruction；
Logic section is handled, it is connected to the memory and at least one sensor, and the processing logic section, which performs, to be used for Handle the instruction of the data received from least one sensor and the communication for handling the sensor node；And
Radio frequency (RF) circuit, it is connected to the processing logic section, and the RF circuits include transmitter and receiver function, with Launch communication to hub in the wireless asymmetrical network framework and received from the hub and communicate, wherein the processing Logic section is configured to the communication that processing receives from hub, and it indicates the launch window of the transmitter function and the reception The reception window of machine function, the conflict of the communication in the wireless asymmetrical network framework is avoided to provide anti-collision feature.
54. sensor node according to claim 53, wherein the sensor node is by battery source or another energy source Power supply.
55. sensor node according to claim 53, wherein the processing logic section is configured to execute instruction to locate The communication received from the hub is managed, it indicates the skew of next launch window of the sensor node.
56. sensor node according to claim 53, wherein the processing logic section is configured to work as the hub It is determined that when the communication received from the sensor node and another node has occurred and that conflict, execute instruction is at least one to generate Random number, and the following launch window of the sensor node or future are received by window based at least one random number In it is at least one enter line displacement.
57. a kind of system for providing wireless asymmetrical network framework, it includes：
First hub, it has the wireless controlled for being configured to control communication and power consumption in the wireless asymmetrical network framework Device processed；And
Multiple first sensor nodes, each node is with least one sensor and with transmitter and receiver with institute The wireless device realized in wireless asymmetrical network framework with the two-way communication of the control device of wireless of first hub is stated, Wherein described control device of wireless is configured to each wireless device and determined in time relative to the transmitting of the emitter The second close time of window is received during the close first time period of window and in time relative to the receiver The scheduled timing of each sensor node is operated during section, to reduce the wireless device of the multiple first sensor node Power consumption.
58. system according to claim 57, wherein first hub is powered by main power source, the multiple first passes Sensor node is powered by battery source, to form the wireless asymmetrical network framework.
59. system according to claim 57, wherein the control device of wireless is configured to be based on from the multiple biography Each wireless device of sensor node receive the sequential of communication for each wireless device determine the emitter launch window and The scheduled timing of the reception window of the receiver.
60. system according to claim 57, wherein each sensor node operates described under the first clock speed One period and the second time period, wherein each sensor section outside the first time period and the second time period Point is operated under second clock speed, wherein compared with first clock speed, the second clock speed is reduction of Clock speed, to reduce the power consumption of each sensor node.
61. system according to claim 57, wherein at least one sensor node, which utilizes, to be included being designed to fill again The battery source of the rechargeable battery of electricity is operated, wherein at least one sensor node includes capacitor or coupled To capacitor with store from the deep discharge for avoiding the battery source vibration collecting circuit collection of energy energy.
62. system according to claim 57, it further comprises：
Second hub, it has the wireless controlled for being configured to control communication and power consumption in the wireless asymmetrical network framework Device processed；And
Multiple second sensor nodes, each node is with least one sensor and with transmitter and receiver with institute The wireless device realized in wireless asymmetrical network framework with the two-way communication of the control device of wireless of second hub is stated, Wherein described control device of wireless is configured to each wireless device and determined in time relative to the launch window of emitter Grasped during the 3rd close period and in time relative to during the 4th close period of the reception window of receiver Make the scheduled timing of each sensor node, to reduce the power consumption of the wireless device of the multiple second sensor node.
63. system according to claim 57, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture or wireless tree-shaped and netted asymmetrical network framework.
64. system according to claim 57, wherein at least one sensor node is utilized including being not intended to be used to fill again The battery source of the galvanic cell of electricity is operated, wherein at least one sensor node includes capacitor or is coupled to electricity Container is to store the energy for the collection of energy for carrying out self-excited oscillation collecting circuit, to carry out trickle charge to galvanic cell, is mended so as to pass through The energy drawn during operation from the battery source or compensation are repaid due to the battery source self discharge and caused by loss increase Add effective battery capacity.
65. system according to claim 57, wherein the control device of wireless of first hub is included in greatly In radio frequency (RF) circuit operated on 2.4 Gigahertzs (GHz) frequency band, wherein the multiple first node is each without traditional thread binding The emitter and the receiver put also operate on the frequency band more than 2.4GHz, to be minimized for each wireless device For the emitter RF circuits power the 3rd period and be the receiver RF circuits power supply the 4th period, with Reduce the power consumption of the wireless device of the multiple first node.
66. system according to claim 65, wherein the RF circuits of first hub are in the frequency more than 5GHz Take operation, wherein the emitter and the receiver of each wireless device of the multiple first node also more than Operated on 5GHz frequency band, so as to be minimised as each wireless device the RF circuits of the emitter power supply the described 3rd when Between section and for the receiver RF circuits power the 4th period, to reduce the nothing of the multiple first node The power consumption of line apparatus.
67. system according to claim 57, wherein each sensor node operates described under the first power consumption levels One period and the second time period.
68. system according to claim 66, wherein outside the first time period and the second time period, each Sensor node operates under the second power consumption levels, wherein first power consumption levels are with more more than second power consumption levels Power consumption.
69. a kind of equipment for providing wireless asymmetrical network framework, it includes：
Memory, it is used for store instruction；
One or more processing units, it is logical to establish and control in the wireless asymmetrical network framework that it is used for execute instruction Letter；And
Radio frequency (RF) circuit, it transmitting and receives communication in the wireless asymmetrical network framework, and the RF circuits are to multiple Sensor node transmitting communication, each sensor node have at least one sensor and with transmitter and receiver with The wireless device with the two-way communication of the RF circuits of the equipment is realized in the wireless asymmetrical network framework, wherein described one Individual or multiple processing unit execute instructions think that at least one wireless device is determined in time relative to the emitter window of emitter During the close first time period of mouth and in time relative to during the close second time period of the reception window of receiver The scheduled timing of at least one sensor node is operated, to reduce at least one nothing of the multiple first sensor node The power consumption of line apparatus.
70. equipment according to claim 69, wherein the equipment is powered by main power source, the multiple sensor node is equal Powered by battery source or another energy source, to form the wireless asymmetrical network framework.
71. equipment according to claim 69, wherein one or more of processing unit execute instructions are with based on from institute At least one wireless device for stating multiple sensor nodes receives the sequential to communicate to be determined at least one wireless device The scheduled timing of the reception window of the launch window of the emitter and the receiver.
72. equipment according to claim 69, at least one wireless device of wherein at least one sensor node The first time period and the second time period are operated under the first clock speed.
73. the equipment according to claim 72, wherein outside the first time period and the second time period, it is described At least one sensor node is in second clock speeds, wherein compared with first clock speed, when described second The clock speed that clock rate degree is reduction of, to reduce the power consumption of at least one sensor node.
74. equipment according to claim 69, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric It is at least one in the network architecture or wireless tree-shaped and netted asymmetrical network framework.
75. equipment according to claim 69, wherein at least one sensor node is described at least one wireless Device operates in the first time period and the second time period under the first power consumption levels.
76. the equipment according to claim 75, wherein outside the first time period and the second time period, it is described At least one sensor node operates under the second power consumption levels, wherein first power consumption levels have than second power consumption Horizontal more power consumptions.
77. a kind of method for being used to reduce the power consumption in wireless asymmetrical network framework, it includes：
Received and communicated from multiple sensor nodes using radio frequency (RF) circuit of hub, sensor node, which has, carries emitter With receiver to realize with the two-way communication of the hub to form the wireless device of the wireless asymmetrical network framework；With And
Determined using the processing logic section of the hub for each wireless device in time relative to the emitter window of emitter During the close first time period of mouth and in time relative to during the close second time period of the reception window of receiver The scheduled timing of at least one sensor of each sensor node is operated, to reduce the nothing of the multiple sensor node The power consumption of line apparatus.
78. the method according to claim 77, wherein the hub is powered by main power source, the multiple node is by electricity Chi Yuan or another energy sources are powered, to form the wireless asymmetrical network framework.
79. the method according to claim 77, it further comprises：
Based on the sequential that communication is received from each wireless device in the multiple sensor node, the place of the hub is utilized Reason logic section is the pre- timing that each wireless device determines the launch window of the emitter and the reception window of the receiver Sequence.
80. the method according to claim 77, wherein each sensor node operates described under the first clock speed One period and the second time period.
81. the method according to claim 80, wherein when outside the first time period and the second time period, Each sensor node operates under second clock speed, wherein compared with first clock speed, the second clock The clock speed that speed is reduction of, to reduce the power consumption of each sensor node.
82. the method according to claim 77, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture.
83. the method according to claim 77, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted Asymmetrical network framework.
84. the method according to claim 77, wherein each sensor node operates described under the first power consumption levels One period and the second time period.
85. the method according to claim 80, wherein when outside the first time period and the second time period, Each sensor node operates under the second power consumption levels, wherein first power consumption levels have than second power consumption levels More power consumptions.
86. a kind of sensor node for wireless asymmetrical network framework, it includes：
At least one sensor；
Memory, it is used for store instruction；
Logic section is handled, it is connected to the memory and at least one sensor, and the processing logic section, which performs, to be used for Handle the instruction of the data received from least one sensor and the communication for handling the sensor node；And
Radio frequency (RF) circuit, it is connected to the processing logic section, and the RF circuits include transmitter and receiver function, with Launch communication to the hub in the wireless asymmetrical network framework and received from the hub and communicate, wherein described Processing logic section is configured to execute instruction to determine that the launch window in time relative to the transmitter function is close During first time period and in time relative to during the close second time period of the reception window of the receiver function The scheduled timing of at least one sensor node is operated, to reduce the power consumption of the sensor node.
87. the sensor node according to claim 86, wherein the sensor node is operated using battery source, and And the energy from collection of energy is stored in the electric capacity for being connected to the sensor node or being integrated with the sensor node In device, wherein the energy from collection of energy is used for the energy that supplement is drawn from battery source during operation.
88. the sensor node according to claim 86, wherein the sensor node operates under the first power consumption levels The first time period and the second time period, wherein outside the first time period and the second time period, it is described Sensor node operates under the second power consumption levels, wherein first power consumption levels have the work(higher than the second power consumption levels Consumption.
89. a kind of system for providing wireless asymmetrical network, it includes：
First hub, it has one or more processing units and for transmitting and reception in the wireless asymmetrical network The first antenna of communication；
Second hub, it has one or more processing units and for transmitting and reception in the wireless asymmetrical network Second antenna of communication；And
Multiple sensor nodes, each sensor node have with transmitter and receiver with the wireless asymmetric net The wireless device with the two-way communication of first hub and second hub is realized in network framework, wherein described first One or more of processing units of hub and second hub are configured execute instruction with based on from each sensing Device node receives communication to determine the positional information of multiple sensor nodes.
90. the system according to claim 89, wherein first hub is powered by main power source, the multiple sensor Node is powered by battery source, to form the wireless asymmetrical network.
91. the system according to claim 89, wherein first hub and second hub are synchronized with each other simultaneously Share the positional information of the multiple sensor node.
92. the system according to claim 89, wherein first hub and second hub is one Or multiple processing units are configured to execute instruction with based on to via the associated arrival time information of the communication with being received And the triangulation of the distance measured determines the positional information of the multiple sensor node.
93. the system according to claim 89, wherein one or more of places of the first hub and the second hub Reason unit is configured to execute instruction with based on to being measured via the associated signal strength information of the communication with being received The triangulation of distance determines the positional information of the multiple sensor node.
94. the system according to claim 89, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric The network architecture.
95. the system according to claim 89, wherein the wireless asymmetrical network framework is including wireless tree-shaped and netted Asymmetrical network framework.
96. the system according to claim 89, wherein one or more of processing unit quilts of second hub It is configured to execute instruction to communicate so that communication to be transmitted into first hub and receive from first hub, for controlling Make and monitor the wireless asymmetrical network framework.
97. the system according to claim 89, wherein the first antenna of first hub and second hub The second antenna by ultra wide band (UWB) communication be transmitted into the multiple sensor node and from the multiple sensor node receive UWB communicates.
98. a kind of equipment for providing wireless asymmetrical network framework, it includes：
Memory, it is used for store instruction；
One or more processing units, it is used for execute instruction and communicated with establishing and controlling in wireless asymmetrical network framework； And
Radio frequency (RF) circuit, it includes being used for the transmitting in the wireless asymmetrical network framework and receives the multiple days to communicate Line, the RF circuits include multiple antennas so that communication is transmitted into multiple sensor nodes, and each sensor node has band There is transmitter and receiver to realize the two-way communication with the RF circuits of the equipment in the wireless asymmetrical network framework Wireless device, wherein one or more of processing units are configured to hold based on receiving communication from each sensor node Row is instructed to determine the positional information of the multiple sensor node.
99. the equipment according to claim 98, wherein the equipment is powered by main power source, the multiple sensor node is equal Powered by battery source or another energy source, to form the wireless asymmetrical network.
100. the equipment according to claim 98, wherein one or more of processing units be configured to execute instruction with Angle of arrival information, signal strength information and arrival time information based on the communication from the multiple sensor node In at least one determine the positional information of the multiple sensor node.
101. the equipment according to claim 100, wherein one or more of processing units are configured to execute instruction To determine the arrival angle information of angle of arrival based on the most strong component of signal of utilization, and it is combined into from the multiple sensor node The communication identification multi-path environment in the most short directapath determined according to arrival time information information come described in determining The positional information of multiple sensor nodes.
102. the equipment according to claim 98, wherein the wireless asymmetrical network framework is including wireless tree-shaped asymmetric It is at least one in the network architecture or wireless tree-shaped and netted asymmetrical network framework.
103. the equipment according to claim 98, wherein the multiple antenna of the RF circuits is logical by ultra wide band (UWB) Letter is transmitted into the multiple sensor node and receives UWB communications from the multiple sensor node.
104. a kind of method for being used to determine position in wireless asymmetrical network framework, it includes：
Using radio frequency (RF) circuit of multiple antennas including hub in the wireless asymmetrical network framework to multiple biographies Sensor node transmitting communication；
Received and communicated from the multiple sensor node using the RF circuits of multiple antennas including the hub, it is each Individual sensor node has with transmitter and receiver to be realized and the line concentration in the wireless asymmetrical network framework The wireless device of the two-way communication of the RF circuits of device；And
Based on from each sensor node receive communicate, determined using one or more processing units of the hub described in The positional information of multiple sensor nodes.
105. the method according to claim 104, wherein the hub is powered by main power source, the multiple sensor section Point is powered by battery source or another energy source, to form the wireless asymmetrical network.
106. the method according to claim 104, further comprises：
Arrival angle information, signal strength information and arrival time based on the communication received from the multiple sensor node It is at least one in information, determine the position of the multiple sensor node using one or more processing units of the hub Confidence ceases.
107. the method according to claim 106, wherein one or more of processing units are configured to execute instruction To determine the arrival angle information of angle of arrival based on the most strong component of signal of utilization, and it is combined into from the multiple sensor node The communication identification multi-path environment in the most short directapath determined according to arrival time information information come described in determining The positional information of multiple sensor nodes.
108. the method according to claim 104, wherein the wireless asymmetrical network framework is including wireless tree-shaped non-right Claim at least one in the network architecture or wirelessly tree-shaped and netted asymmetrical network framework.
109. the method according to claim 104, sent out wherein multiple antennas of the hub communicate ultra wide band (UWB) It is mapped to the multiple sensor node and receives UWB communications from the multiple sensor node.
CN201680007565.XA 2015-01-27 2016-01-27 The system and method that wireless sensor network with asymmetrical network framework is provided Pending CN107455010A (en)

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US14/607,047 US9706489B2 (en) 2015-01-27 2015-01-27 Systems and methods for providing wireless asymmetric network architectures of wireless devices with anti-collision features
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US14/607,047 2015-01-27
US14/607,050 US9529076B2 (en) 2015-01-27 2015-01-27 Systems and methods for determining locations of wireless sensor nodes in an asymmetric network architecture
US14/607,045 US9380531B1 (en) 2015-01-27 2015-01-27 Systems and methods for providing wireless sensor networks with an asymmetric network architecture
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US14/607,048 US10028220B2 (en) 2015-01-27 2015-01-27 Systems and methods for providing wireless asymmetric network architectures of wireless devices with power management features
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