CN103632570A - Wireless transmission method and wireless transmission system - Google Patents
Wireless transmission method and wireless transmission system Download PDFInfo
- Publication number
- CN103632570A CN103632570A CN201310565695.3A CN201310565695A CN103632570A CN 103632570 A CN103632570 A CN 103632570A CN 201310565695 A CN201310565695 A CN 201310565695A CN 103632570 A CN103632570 A CN 103632570A
- Authority
- CN
- China
- Prior art keywords
- node
- parking stall
- channel
- space information
- stall measure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to a wireless transmission method and a wireless transmission system. The method comprises the following steps: establishing one layer of network topology by a stall detecting node and relay nodes; sending stall information which is collected by the stall detecting node to the relay nodes which are connected with the stall detecting node and are arranged on the same layer of network topology with the stall detecting node; establishing one layer or multiple layers of network topologies between the relay nodes or between the relay nodes and aggregation nodes; sending the stall information to a cloud processing platform through the relay nodes and the aggregation nodes which are connected with the relay nodes which receive the stall information or through the aggregation nodes which are connected with the relay nodes which receive the stall information. A multi-layer heterogeneous self-organizing wireless communication network architecture is set up to lower the congestion probability of channels and improve the data transmission speed. The chain performance and the anti-interference performance are improved through the self-adaptive channel coordination and allocation of the relay nodes. The stall detecting node is automatically connected with the relay nodes with great communication quality, and the packet loss rate is lowered. The efficiency of monitoring and managing the system is improved by the adoption of specific data frames.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of radio transmitting method and system.
Background technology
Along with economic development, the data of motor vehicle and frequency of utilization also increase thereupon, parking lot the efficiency of management and security lag behind society need far away.
According to relevant enquiry data, show, motorist accounts for the 12%-15% of road traffic flow in order to find repeatedly cruising that vacant Parking Stall carries out on road surface, and in other words, the searching of parking stall has expended a large amount of time and efforts of motorist.
Along with the development of the intelligent buildings such as intelligent building and intelligent residential district, supporting intelligent parking guide system arises at the historic moment with it, and intelligent parking guide system can be saved the time that motorist finds parking stall, and guiding motorist travel rapidly into idle parking stall.But, the problem such as intelligent parking guide system need to carry out the wiring of load in parking lot, exist the construction period long, difficult in maintenance.
For the problems referred to above, propose a kind of employing wireless transmission net and built managing system of car parking, with the information of monitoring and managing each parking stall, comprise the variation (have car, without car) of parking space state, by wireless parking stall detection node is set in each parking stall, by this wireless parking stall detection node, gather parking space information, in time the parking space information of all wireless parking stall detection node collections is transferred to system background server by wireless mode and is further processed, to realize parking stall management and the issue of parking space state information in parking lot.
But, due to parking stall One's name is legion, and on each parking stall, to dispose wireless parking stall detection node, cause constructed wireless transmission net too huge, the parking space information that all so wireless parking stalls detection node gathers also will be very considerable, and each is wireless, and parking stall detection node need to be competed use radio channel resource when reporting the parking space information of collection, easily cause single channel because of the excessive generation channel congestion of quantity of information of transmission, make information can not effectively transmit the information that each wireless parking stall detection node gathers, affect the real-time update of parking space state.
Summary of the invention
For overcoming the wireless transmission net generation channel congestion existing in prior art, cannot realize the defect of the real-time update of parking space state, fundamental purpose of the present invention is to provide a kind of radio transmitting method and system, in the wireless-transmission network existing with solution prior art, communication node (parking stall measure node, via node, aggregation node etc.) quantity is too huge, cause radio channel resource dog-eat-dog, and then the problem of the channel congestion causing, wherein:
The invention provides a kind of wireless transmitting system, comprising: parking stall measure node, via node, aggregation node, is characterized in that: by for gather parking space information described parking stall measure node, build one deck network topology with described via node; Wherein, described parking stall measure node by described parking space information send to be connected with described parking stall measure node and in same layer network topology for forwarding the via node of the parking space information gathering from described parking stall measure node; Between described via node or between described via node and described aggregation node, building one or more layers network topology; Wherein, the via node being connected by the via node with receiving described parking space information and aggregation node, or the aggregation node being connected, successively described parking space information is sent to the cloud processing platform for the treatment of described parking space information.
Wherein, further can comprise: described in every one deck, network topology has same or different networking mode.
Wherein, further can comprise: a channel of via node binding described in each.
Wherein, further can comprise: the channel of described parking stall measure node scan free time, the via node by the channel bonding with the described free time connects, to access described channel.
Wherein, the parking space information of described parking stall measure node collection at least comprises: the channel number of the number of times of the network address of described parking stall measure node, transmission parking space information, the channel accessing, the geomagnetic data in the certain limit that described parking stall measure node gathers.
Wherein, further can comprise: the via node being connected with described parking stall measure node is positioned over the network address of described via node in described parking space information.
Wherein, further can comprise: the network address of described parking stall measure node and the network address of described via node have uniqueness.
Wherein, further can comprise: described parking stall measure node and/or described via node are positioned over described parking space information in specific Frame.
Wherein, described Frame further comprises: the check bit that record generates according to the data of placing in described Frame.
Wherein, further can comprise: described aggregation node sends to described cloud data platform by the Frame of verifying by check bit.
The present invention also provides a kind of method of wireless transmission, it is characterized in that, comprising: by scanning one or more channels, a channel automatically and in described one or more channels connects; By the described channel connecting, send the parking space information gathering; Wherein, described parking space information at least comprises the first network address with uniqueness, the channel number of the described channel of connection, the number of times of transmission parking space information, the geomagnetic data in certain limit.
Wherein, described by the one or more channels of scanning, a channel automatically and in described one or more channels connects, and comprising: by transmitting channel access request, connect with the via node that responds at first described channel access request, to access channel; Wherein, the channel of each via node binding in one or more described via nodes.
Wherein, the parking space information that described transmission gathers, also comprises: described parking space information is positioned in specific Frame.
The present invention provides again a kind of wireless communications method, it is characterized in that, comprising: second network address is added in the parking space information receiving; Channel by binding, forwards described parking space information, and wherein, the channel of described binding is identical with the channel of record in described parking space information.
Wherein, described second network address has uniqueness.
Wherein, the channel of described binding is identical with the channel of record in described parking space information, comprising: by response, be about to send the channel access request of the parking stall measure node of parking space information, return to the channel number of the channel of described binding to described parking stall measure node.
Compared with prior art, according to technical scheme of the present invention, there is following beneficial effect:
The present invention, by build multilayer heterogeneous self organizing radio network network framework between parking stall measure node, via node, aggregation node, has reduced the probability that channel congestion occurs, and has improved data rate.
Via node of the present invention can be coordinated and distribute by adaptive channel, effectively anti-interference and raising link performance.
Parking stall measure node of the present invention is by scanning channel, and the automatic and good via node of communication quality connects, and has reduced the packet loss of parking space information in transmitting procedure.
The present invention adopts specific Frame storage parking space information, and the network address of the via node of storing parking stall detection node and be connected with this parking stall measure node in this Frame, with each the parking stall measure node in compartment system and each via node, therefore improved the efficiency that system is monitored and managed.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of isomery Multi-layer Self-organizing Radio Network System according to an embodiment of the invention;
Fig. 2 is the structural drawing of parking stall measure node 110 according to an embodiment of the invention;
Fig. 3 is the network topology structure schematic diagram of via node 120 according to an embodiment of the invention;
Fig. 4 is according to an embodiment of the invention for the structural representation of the Frame that transmits;
Fig. 5 is the process flow diagram of radio transmitting method according to an embodiment of the invention;
Fig. 6 is the process flow diagram of (parking stall measure node side) radio transmitting method according to an embodiment of the invention;
Fig. 7 is the process flow diagram of (via node side) radio transmitting method according to an embodiment of the invention.
Embodiment
Main thought of the present invention is, parking stall measure node collection parking space information, and adopt isomery Multi-layer Self-organizing wireless network that the parking space information of collection is converged to aggregation node.Aggregation node is uploaded to cloud processing platform by wired (or wireless) mode by parking space information, by cloud processing platform, monitors and manage each parking stall measure node, via node, aggregation node.And then reduced the probability that channel congestion occurs, improved data rate.
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with drawings and the specific embodiments, the present invention is described in further detail.
The invention provides a kind of wireless transmitting system.In one embodiment, this wireless transmitting system can be the isomery Multi-layer Self-organizing Radio Network System for parking space information collection.
As shown in Figure 1, Fig. 1 is the structural representation of isomery Multi-layer Self-organizing Radio Network System according to an embodiment of the invention.
In this isomery Multi-layer Self-organizing Radio Network System, can comprise parking stall measure node 110, via node 120, aggregation node 130, cloud processing platform 140.
Isomery Multi-layer Self-organizing wireless network refers to, can by one or more parking stall measure node 110(of arranging in Radio Network System as shown in Figure 1 parking stall measure node 110-1,110-2 ... 110-N), one or more via node 120(as shown in Figure 1 via node 120-1,120-2 ... 120-N), one or more aggregation node 130(schematically show aggregation node 130 as Fig. 1, in fact, can also comprise aggregation node 130-1 ... 130-N) build one or more layers network topology.Wherein, one or more layers network topology can adopt heterogeneous networks topological structure (networking mode), for example, by parking stall measure node 110 and via node 120, form ground floor network topology, networking mode can be star-like self-organizing network, foundation and the maintenance of the Centroid that the via node 120 of take is star-like self-organizing network responsible star-like self-organizing network.Via node 120 and aggregation node 130 can form second layer network topology, and networking mode can be netted self-organizing network, with aggregation node 130 as whole network coordinator.
Further, in isomery Multi-layer Self-organizing wireless network, multilayer refers to the network topology that can build many levels; Isomery refers to that the networking mode of every layer network topology can be different; Self-organization refers to a channel of each via node 120 binding, and parking stall measure node 110 is by scanning channel, and spontaneous and nearest via node 120 connects, the top-quality channel of access communications.
Below the isomery Multi-layer Self-organizing Radio Network System of an embodiment is elaborated.
Parking stall measure node 110, can be for gathering parking space information.This parking space information can comprise the geomagnetic data in the certain limit of collection, the network address of parking stall measure node 110, the number of times that sends parking space information, the information such as channel number that access.
Particularly, can in system, arrange one or more for gather parking space information parking stall measure node 110-1,110-2 ... 110-N, and for each parking stall measure node 110 distributes a network address with uniqueness, for example, for parking stall measure node 110-1 distribution network address 0.3.1.1, a plurality of parking stall measure node 110-1,110-2 ... in the network address of 110-N, this network address 0.3.1.1 of parking stall measure node 110-1 is unique.So that different parking stall measure nodes 110 is distinguished in the network address that cloud processing platform 140 can have uniqueness by this.Further, parking stall measure node 110 can arrange or be embedded in parking stall.Parking stall measure node 110-1,110-2 ... 110-N can gather the geomagnetic data of parking stall, for example, parking space information can comprise the geomagnetic field intensity of parking stall, and can adopt communication to be uploaded to cloud processing platform 140 by via node 120 and aggregation node 130 parking space information (geomagnetic data) gathering, to do further, process.
This parking stall measure node 110 can comprise the internal module of a plurality of parking space information collections that can cooperatively interact, and as shown in Figure 2, Fig. 2 is the structural drawing of parking stall measure node 110 according to an embodiment of the invention.
In parking stall measure node 110, can comprise the modules such as geomagnetic sensor 210, wireless communication module 220, microprocessor 230 and battery 240.
Due to each parking stall measure node 110-1,110-2 ... 110-N is mainly responsible for geomagnetic data collection, and gather and each parking stall measure node 110-1,110-2 ... the data that 110-N is relevant, without these data being carried out to the processing of the degree of depth, avoided a large amount of data to carry out computing, thereby reduced microprocessor 230 occupancies, reached the object of economize on electricity.
Via node 120, can for receive from each parking stall measure node 110-1,110-2 ... the parking space information that 110-N sends, and parking space information can be forwarded to aggregation node 130.That is, via node 120 has the function of data switching center.Can in system, arrange one or more via node 120-1,120-2 ... 120-N, and be this one or more via node 120-1,120-2 ... each via node in 120-N distributes a unique network address, so that cloud processing platform 140 is distinguished different via node 120 according to this network address.For example, for via node 120-1 distributes a network address 114.19.1.1 with uniqueness, only have this via node 120-1 to there is this network address, other via node 120-2 ... there is not the network address of repeating with network address 114.19.1.1 in 120-N.
Further, each via node 120-1,120-2 ... 120-N can be real-time by each parking stall measure node 110-1,110-2 ... the parking space information that 110-N sends is forwarded to aggregation node 130.
In one embodiment, each via node 120-1,120-2 ... 120-N can with each parking stall measure node 110-1,110-2 ... 110-N and each aggregation node 130-1 ... 130-N forms isomery Multi-layer Self-organizing wireless network.
Each parking stall measure node 110-1,110-2 ... 110-N can be operated in compared with low-frequency range, as: sub-1GHz.Sub-1GHz refers to industrial science and the medical frequency range (ISM Band, Industrial Scientific Medical Band) that is less than 1GHz, ISM band is common frequency band, this sub-1GHz such as 433MHz, 868MHz, 915MHz etc.And via node 120 also can be in a plurality of frequency range work, such as: the sub-1GHz frequency range in ISM band, 2.4GHz frequency range and 5GHz frequency range etc.
The characteristic that can possess a plurality of working frequency range according to via node 120, each parking stall measure node 110-1,110-2 ... 110-N and each via node 120-1,120-2 ... between 120-N, can build one deck network topology at a working frequency range, each via node 120-1,120-2 ... between 120-N and each via node 120-1,120-2 ... 120-N and each aggregation node 130-1 ... between 130-N, can build one or more layers network topology at other one or more working frequency range.Wherein, every layer network topology can be carried out data transmission based on a working frequency range.Data transmission between different frequency range does not interfere with each other.
One deck network topology > that < builds between parking stall measure node and via node
In one embodiment, one or more parking stall measure node 110-1, 110-2, 110-N can build star-like self-organizing network with nearest via node 120, these one or more parking stall measure node 110-1, 110-2, the Centroid of 110-N using this coupled via node 120 as star-like self-organizing network, and these one or more parking stall measure node 110-1, 110-2, 110-N can pass through this Centroid access network, in order to send this one or more parking stall measure node 110-1, 110-2, the parking space information that 110-N gathers.Further, each parking stall measure node 110-1,110-2 ... 110-N and nearest via node 120-1,120-2 ... 120-N can form one or more star-like self-organizing networks, and these one or more star-like self-organizing networks can be seen as the wherein one deck network topology in isomery Multi-layer Self-organizing network.Wherein, in this layer network topology, each parking stall measure node 110-1,110-2 ... 110-N and each via node 120-1,120-2 ... the communication of 120-N can be operated in compared with low-frequency range, for example: working frequency range is chosen in sub-1GHz.
Due to, in radio communication, a channel can carry a wireless signal.So, when each parking stall measure node 110-1,110-2 ... 110-N and each via node 120-1,120-2 ... while adopting sub-1GHz frequency range between 120-N, these via nodes 120-1,120-2 ... in a plurality of channels that 120-N can comprise in certain ISM band, select in advance (configuration) N channel, for example, N channel of random selection, wherein N is greater than zero natural number.A channel bonding in each via node 120 and N communication channel.Particularly, via node can a periodic scanning N available channel, and this available channel is a pre-configured N channel.If channel is taken (binding) by arbitrary via node, the via node of this scanning channel can be received the feedback of " channel busy ".Finally, this via node can be selected one as the communication channel of oneself from unappropriated idle channel set, thereby accomplishes interference coordination and avoid, and has improved network link performance.Certain channel likely can be reused after keeping at a certain distance away, but uses the via node of same channel distant, so can not cause each other signal to disturb.
N the available channel that parking stall measure node scan is pre-configured, by connecting with the via node of available channel binding, access channel.Particularly, each parking stall measure node 110-1,110-2 ... 110-N autoscan available channel also sends channel access request, because via node 120 and channel exist binding relationship, the via node 120 nearest apart from the parking stall measure node 110 that sends channel access request can respond the channel access request of parking stall measure nodes 110, and then parking stall measure cautious 110 can add the star-like self-organizing networks of via node 120 compositions.Further, can lay at a certain distance a via node 120, each via node 120-1,120-2 ... between 120-N, can coordinate to adopt different channels, via node 120 can detect the channel access request that the parking stall measure node 110 in certain limit sends, but, via node 120 can not received the channel access request that the parking stall measure node 110 of hypertelorism sends, in other words, via node 120 can only receive the channel access request that the parking stall measure node 110 within coverage sends.For example: each via node 120-1,120-2 ... 120-N and each parking stall measure node 110-1,110-2 ... 110-N, when sub-1GHz band networking, can introduce cellular network or the chain-shaped network networking plan of public mobile communication.When adopting cellular network to carry out networking, a via node 120 covers Yi Ge community in cellular network, so each via node 120 can only receive each parking stall measure node 110-1,110-2 in its responsible community ... the channel access request that 110-N sends, and other via nodes 120 can not be received this channel access request.When adopting chain-shaped network to carry out networking, identical with the situation of cellular network, via node 120 can only detect each parking stall measure node 110-1, the 110-2 that are responsible in region ... the channel access request that 110-N sends.Thereby 110 of parking stall measure nodes can access channels by the via node 120 of close together, and then, guarantee that 110 of parking stall measure nodes can be connected to the good via node 120 of communication quality.So, between via node and via node and channel and interchannel and do not interfere with each other.
In one embodiment, when certain parking stall measure node 110 is during in two via node 230 centre positions, parking stall measure node 110 can connect with the via node 120 that first responds the channel access request that this parking stall measure node 110 sends, and then access channel.
By such mode, each parking stall measure node 110-1,110-2 in system ... 110-N and each via node 120-1,120-2 ... 120-N can be spontaneous organization network topology, and, the network topology of this spontaneous tissue has the characteristic of self-healing, such as nearest via node breaks down, parking stall measure node can attempt accessing other communication quality other via node preferably, can effectively reduce packet loss and guarantee that parking space information correctly reports, and greatly having improved reliability and the validity of system.
And, the parking space information that parking stall measure node 110 sends to via node 120, is to propagate in space with the form of wireless signal, and the frequency range that the loss in transmission of wireless signals process adopts with communication process is relevant, the higher loss of frequency range is larger, and frequency range more low-loss is less.Signal penetration capacity is relevant with the wavelength of wireless signal, and signal wavelength longer (being that frequency range is lower) penetration capacity is stronger.Be operated in compared with low-frequency range, loss is little, and signal penetration capacity is strong, and receiver (via node 120) can receive the signal that power ratio is larger, thereby has increased communication range.So, the present invention adopt lower working frequency range can effectively reduce each parking stall measure node 110-1,110-2 ... 110-N and each via node 120-1,120-2 ... the energy consumption of 120-N, and can expand the coverage area and wireless signal penetration capacity.
Between via node and via node, and between via node and aggregation node, build one or more layers network topology.
In one embodiment, between via node and via node, can adopt mesh network to carry out networking, should by each via node 120-1,120-2 ... the network that 120-N forms can be regarded as the another layer network in isomery Multi-layer Self-organizing wireless network.Wherein, between via node and via node, can be operated in higher frequency band, keep apart compared with the network topology of low-frequency range (sub-1GHz) with use, be difficult for each other producing and disturb.For example: the 2.4GHz in employing ISM band is as working frequency range.This mesh network adopts effectively Extension of service region of higher working frequency range.Further, because via node 120 is layed on the ground, between via node 120 and between via node 120 and aggregation node 130, exist in most cases line-of-sight transmission loss little, can be operated in compared with large coverage.
Further, via node 120 can have double-deck identity, can be used as network child node, also can be as the father node of lower floor's via node 120.As the schematic diagram to the networking of via node employing layered mode that Fig. 3 simply illustrates, Fig. 3 is the network topology structure schematic diagram of via node 120 according to an embodiment of the invention.For example, via node 120-1 and aggregation node 130 form one deck network topologies, other via node 120-2,120-3 and several parking stall measure node 110-1,110-2,110-3 form one deck network topology, because via node 120 can be used as father node and/or child node, so when networking, in the network topology that can form at these via nodes 120-1,120-2,120-3, by a via node 120-1 as father node, by other via node 120-2,120-3 as child node.The present invention preferably, when network size is larger, can each via node 120-1,120-2 ... in 120-N, build multitiered network topological structure.
This system based on layer architecture has good extendability, can meet the demand of different user scale grade.Via node 120 can have routing function, can infinite expanding extend, and newly-increased via node can be the child node that has had via node.Here said extensibility refers to the changeable and dynamic extending of network size.
Each via node 120-1,120-2 ... 120-N is in order effectively to guarantee that parking space information (geomagnetic data) can be accurately and report in time aggregation node 130, install out of doors each via node 120-1,120-2 ... 120-N can adopt solar powered, not only environmental protection but also cost-saving, can guarantee that communication continues not interrupt simultaneously.Because parking stall measure node can adopt powered battery, for energy-conservation, parking stall measure node can only be limited in terminal node identity (reporting parking space information after the dormancy awakening of interval) and not have relay function (needing continuous firing).And via node adopts sun power or other power supply mode, there is sufficient electrical energy can guarantee continual and steady work, can have network node and relay function concurrently.
In one embodiment, can in system, arrange one or more aggregation node 130-1,130-2 ... 130-N.Preferably, can in parking lot, configure a gateway as aggregation node 130(gateway 130).
In one embodiment, cloud processing platform 140, can be for abundant processing and the excavation of data, for example: cloud processing platform 140 can be by analyzing and process the geomagnetic data in parking space information, judgement parking stall takies situation, be parking space state, issue in time parking space state, and be each via node 120-1,120-2 in system ... 120-N issues control command etc.
In one embodiment, when each parking stall measure node 110-1,110-2 ... 110-N collects after parking space information, can pass through wireless transmission method, and based on specific frame structure, by parking space information by each via node 120-1,120-2 ... some, certain several gateway 130 node that are transferred in 120-N.
Based on above-mentioned network, the present invention has further proposed a kind of frame structure of more optimizing that can be applied in the layering wireless communication network of parking lot.As shown in Figure 4, Fig. 4 is according to an embodiment of the invention for the structural representation of the Frame that transmits.
According to the schematic diagram of the frame structure shown in Fig. 4, table 1 is each field comprising in frame structure, and the implication of each field.
Table 1
These fields mainly can be divided into 3 large classes:
Class1: the type field is mainly used in transmitting various sensing datas (geomagnetic data) and the relevant data of parking stall measure node itself, comprises geomagnetic data, voltage, temperature etc.Fields such as environmental parameter, fundamental measurement parameter and enhancing measurement parameter.
Type 2: the type field is mainly used in the data that transmission is relevant to communication protocol, fields such as the network address, sequence number, communication channel, cyclic check.
Type 3: reserved field, for example, for needing in the future other data of transmission, reserved field field.
This frame structure comprises the fields such as the network address, communication channel, is convenient to annexation of analyzing topology of networks, parking stall measure node and via node etc., and utilizes reserved field to carry out the extensibility of keeping system.
Further, because number of nodes is numerous, particularly parking stall measure number of nodes is numerous, so each bit in define grid address field more specifically comes more effective identification parking stall measure node, via node.Concrete grammar is as follows, in 32 bits of network address fields, and via node: take high-order 12 bits (remaining 20 number of bits certificate is 0), wherein, 1st, 2 bits can for sign via node type for example, solar power supply type via node, mains-supplied type via node; 3-12 bit can be for the numbering of sign via node.For example: the network address of via node (occupying high-order 12 bits) is: 114.16.0.0.Parking stall measure node: take low level 20 bits (remaining 12 Bit data is 0), wherein, the 1st, 2 bits can for example, for the type of mark vehicle position detection node: indoor parking stall detection node, outdoor parking stall measure node; 3-20 bit can be for representing the numbering of parking stall measure node.For example: the network address of parking stall measure node (20 bits after occupying) are 0.3.1.1.
The network address of this via node and parking stall measure node has uniqueness, can allocate in advance to via node and parking stall measure node.When Frame framing, can now the network address of parking stall measure node be packaged in Frame, when Frame (parking space information) sends the via node being connected as for this parking stall measure node, via node decapsulation Frame, and the Frame of the parking stall measure node in the network address of self and Frame is merged, and encapsulation of data frame again.
Forming process based on this frame structure, to describing of radio transmitting method according to an embodiment of the invention.With reference to figure 5, Fig. 5 is the process flow diagram of the radio transmitting method of one embodiment of the invention.
At step S510 place, parking stall measure node gathers parking space information, and the parking space information based on this collection forms Frame.
Can identify for each the parking stall measure node in parking lot, for example, to distinguish each parking stall measure node: be parking stall measure node distribution network address 0.3.1.1.This network address has uniqueness, parking stall measure node of unique identification, so, can distinguish which the parking stall measure node that sends parking space information is according to the network address.
Parking stall measure node carries out geomagnetic data collection to parking stall.This geomagnetic data can comprise the geomagnetic data of magnetic field levels direction, the geomagnetic data of magnetic field vertical direction.Can be by the geomagnetic data collecting, and the relevant information of this parking stall measure node, be positioned in the correspondence position of frame structure.That is to say, parking stall measure node is packaged in the parking space information of collection in specific Frame, to transmit this Frame (parking space information).
Particularly, the network address fields in Frame can be for the network address of storage cart position detection node and the network address of the via node being connected with this parking stall measure node.Can be by 12 bit zero clearings of a high position for network address fields, retain to the via node use being connected with this parking stall measure node, the network address that utilizes 20 bits of low level of network address fields to place this parking stall measure node, for example: 0.3.1.1.In follow-up step S520, then this network address fields is put into in the network address of the via node being connected with this parking stall measure node.
The number of times that this parking stall measure node can be sent to parking space information (Frame) is recorded in sequence-number field, in order to parking stall measure node is sent to the number of times of parking space information, count, for example: this is that this parking stall measure node the 5th sends parking space information, can in sequence-number field, record numeral 5.The current state of parking stall measure node can be write to identification field, for example, parking stall measure node has completed calibration, the current align mode " calibration completes " of parking stall measure node can be write to this identification field.Parking stall measure node can gather one-shot battery voltage or the relevant data of environment temperature at set intervals, can write using the data of collection as sampled value environmental parameter field, sampled value accounts for 12 bits in this field, wherein most significant bit can identify adopted value type, for example: cell voltage type can write 1, environment temperature type can write 0.The geomagnetic data that geomagnetic sensor 210 can be gathered is placed in the field that measurement parameter is relevant.Can the channel number of the channel of parking stall detection node access, the numbering of the channel that the via node being connected with parking stall measure node is bound will be put in communication channel field.Can be by reserved field zero clearing while forming Frame, this reserved field is used during in order to growth data content frame in the future.Can pass through cyclic redundancy check (CRC) (CRC, Cyclic Redundancy Check) algorithm and produce cyclic redundancy check (CRC) code (CRC check position), and CRC check position is placed into the crc field place in Frame.
Parking stall measure node can be transmitted to the data after framing the via node being connected with this parking stall measure node by wireless communication module, and by the follow-up processing to Frame, Frame is sent to cloud processing platform by via node by aggregation node.
At step S520 place, via node forwards the Frame from parking stall measure node.
Each via node is identified, to distinguish each via node.For example: for via node distributes a unique network address, as: 114.16.0.0, can identify this via node according to the network address of via node.
When via node successfully receives after the Frame of parking stall measure node transmitting, the network address of via node is placed into 12 high-order bits of network address fields, retain other field datas constant.For example, existing network address 0.3.1.1(low level 20 bits that send the parking stall measure node of Frame in network address fields), by the network address of via node, 12 bits as high-order in 114.16.0.0(), put into the 12 high-order bits to network address fields, can obtain so new network address fields is 114.19.1.1.
Data according to upgrading after network address fields, regenerate CRC check position and put into crc field, new Frame can be transmitted into aggregation node by via node, as, gateway.
At step S530 place, aggregation node is sent to cloud processing platform by the Frame by verification.
Gateway successfully receives after the Frame of via node forwarding, and CRC check position is verified.If the verification passes, data frame transfer to cloud processing platform is carried out to data processing further.If, by checking, this Frame is not abandoned.
Because the network address of parking stall measure node and via node has uniqueness, so, cloud processing platform can analyze according to the network address in the Frame receiving the parking stall measure node that sends Frame and the via node that forwards this Frame, and then cloud processing platform can be according to the analysis of each field in this Frame being carried out to via node and the parking stall measure node in real-time controlling and management, and issue control command.
For example: according to the variation of the geomagnetic data in Frame, whether the parking space state of judging the parking stall that parking stall measure node detects changes, for example, the variation of geomagnetic data surpass threshold value parking space state change, at this moment cloud processing platform can upgrade the parking space state of this parking stall.Cloud processing platform can be analyzed the packet loss of parking stall measure node according to the number of times recording in sequence-number field (numerical value),, check and receive that continuously whether the numerical value of the sequence-number field in Frame is continuous, judge parking stall measure node and send the total degree of Frame and calculate the quantity that cloud processing platform does not receive Frame, to calculate packet loss, weigh communication quality.As, the quantity that parking stall measure node sends parking space information is 10 times, to receive continuously the numerical value of the sequence-number field in the Frame of this parking stall measure node should be 1,2,3,4,5,6,7,8,9,10 to cloud processing platform, yet, the numerical value of the sequence-number field that cloud processing platform is truly received is not continuous, but 1,3,4,6,7,10, mean that so numerical value is 2,5,8,9 admission control.Cloud processing platform can be judged in the Frame of truly receiving, one of numerical value maximum is 10, using this numerical value 10 as this parking stall measure node, send the total degree of Frame, the Frame that is 2,5,8,9 by unreceived numerical value is judged as packet loss, the quantity of packet loss is 4 so, the quantity 4 that packet loss is packet loss divided by receivable to quantity (total degree) 10 equal 0.4(4/10=0.4).According to environmental parameter, field analysis has the current state fault of parking stall measure node to cloud processing platform, and for example battery electric quantity is low, can send " low-current alarming ".
According to embodiments of the invention, provide a kind of radio transmitting method.With reference to figure 6, Fig. 6 is the process flow diagram of one embodiment of the invention (parking stall measure node side) radio transmitting method.The function that the method has corresponding to the parking stall measure node in system.
At step S610 place, by scanning one or more communication channels, a channel automatically and in one or more communication channels connects.
This channel being certainly dynamically connected is the good channel of communication quality in one or more channels.
Particularly, parking stall measure node can scan available (free time) channel in one or more channels, and sends channel access request to available channel.Because available channel is set up binding relationship with via node in advance, so distance is sent the nearest via node of parking stall measure nodal distance of channel access request, can be mutually should parking stall measure node channel access request so that this parking stall measure node accesses this channel.
At step S620 place, by the channel of this connection, send the parking space information gathering, wherein, described parking space information at least comprises the first network address with uniqueness, the channel number of connecting channel, the number of times of transmission parking space information, the geomagnetic data in certain limit.
This certain limit at least can cover the area of a parking stall, and the geomagnetic data of collection can comprise the geomagnetic data of magnetic field levels direction, the geomagnetic data of magnetic field vertical direction, and further, this geomagnetic data can be geomagnetic field intensity data.By this geomagnetic data is analyzed, whether the parking space state that can judge the parking stall that parking stall measure node detects changes, and gather the geomagnetic data of both direction,, the geomagnetic data of the geomagnetic data of magnetic field levels direction and magnetic field vertical direction, compared to the geomagnetic data that only gathers a direction, can increase the accuracy of analysis.
This first network address is used in reference to a unique parking stall measure node, in other words, each parking stall measure node has a network address with uniqueness, in order to distinguish each the parking stall measure node in system, each parking stall measure node in system that can be real-time is monitored and is managed.
This sends the number of times of parking space information, for parking stall measure node being sent to the number of times of parking space information (Frame), count, so that the packet loss to this parking stall measure node calculates, and then can make accommodation to the parking stall measure node in system, network node, aggregation node etc.
In this parking space information (Frame), can also comprise: the current state of the parking stall measure node of collection (as, verification completes), the data that the cell voltage of the parking stall measure node of collection or environment temperature are relevant etc.
In one embodiment, described parking space information can be positioned in specific Frame, send parking space information and that is to say this Frame of transmission.If parking space information is positioned in Frame, also to generate check bit for the parking space information gathering, to this Frame is carried out to verification, confirm whether this Frame makes mistakes in transmitting procedure.
According to embodiments of the invention, a kind of method of radio communication is also provided, as shown in Figure 7, Fig. 7 is the process flow diagram of (via node side) radio transmitting method according to an embodiment of the invention.The function that the method has corresponding to the via node in system.
At step S710 place, second network address is added in the parking space information receiving.
Second network address has uniqueness.Via node of sensing that this second network address is unique, in other words, each via node in system has a network address with uniqueness.This network address is added in parking space information, can distinguish each via node in system, to each via node in system is monitored and managed.
If the form that the parking space information receiving is Frame, can be positioned over second network address in Frame.
At step S720 place, the communication channel by binding, forwards this parking space information, and wherein, the channel of this binding is identical with the channel of record in this parking space information.
By a communication channel of each via node binding, the good channel of parking stall measure node access communications quality, is by existing the via node of binding relationship to connect with this channel.Further, parking stall measure node transmitting channel access request, be positioned at the nearest via node of this parking stall measure nodal distance and respond this parking stall measure node, parking stall measure node gathers the channel number of the channel of this via node binding, and this channel number is write in parking space information.In other words, by response, be about to send the channel access request of the parking stall measure node of parking space information, to described parking stall measure node, return to the channel number of described bound channels.So the channel number recording in parking space information is identical with the channel number of the channel of via node binding.
Because parking stall measure node is same layer network topology with the via node that receives the parking space information of this parking stall measure node transmission.This via node, when forwarding this parking space information, can be forwarded to cloud processing platform by this parking space information by upper layer network topology.Wherein this upper layer network topology can comprise one or more layers network topology structure.
Further, if the form that the parking space information receiving is Frame, the parking space information forwarding is to have added the Frame of the renewal of second network address.
The foregoing is only embodiments of the invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in claim scope of the present invention.
Claims (10)
1. a wireless transmitting system, comprising: parking stall measure node, via node, aggregation node, is characterized in that:
By for gather parking space information described parking stall measure node, build one deck network topology with described via node; Wherein, described parking stall measure node by described parking space information send to be connected with described parking stall measure node and in same layer network topology for forwarding the via node of the parking space information gathering from described parking stall measure node;
Between described via node or between described via node and described aggregation node, building one or more layers network topology; Wherein, the via node being connected by the via node with receiving described parking space information and aggregation node, or the aggregation node being connected, successively described parking space information is sent to the cloud processing platform for the treatment of described parking space information.
2. system according to claim 1, is characterized in that, further comprises:
Described in every one deck, network topology has same or different networking mode; And/or, a channel of via node binding described in each; And/or,
The parking space information of described parking stall measure node collection at least comprises: the channel number of the number of times of the network address of described parking stall measure node, transmission parking space information, the channel accessing, the geomagnetic data in the certain limit that described parking stall measure node gathers.
3. system according to claim 2, is characterized in that, further comprises: the channel of described parking stall measure node scan free time, the via node by the channel bonding with the described free time connects, to access described channel.
4. system according to claim 2, is characterized in that, further comprises: the via node being connected with described parking stall measure node is positioned over the network address of described via node in described parking space information.
5. according to the system one of claim 2-4 Suo Shu, it is characterized in that, further comprise: the network address of described parking stall measure node and the network address of described via node have uniqueness; And/or,
Described parking stall measure node and/or described via node are positioned over described parking space information in specific Frame.
6. system according to claim 5, is characterized in that, described Frame further comprises: the check bit that record generates according to the data of placing in described Frame; And/or described aggregation node sends to described cloud data platform by the Frame of verifying by check bit.
7. a method for wireless transmission, is characterized in that, comprising:
By scanning one or more channels, a channel automatically and in described one or more channels connects;
By the described channel connecting, send the parking space information gathering; Wherein, described parking space information at least comprises the first network address with uniqueness, the channel number of the described channel of connection, the number of times of transmission parking space information, the geomagnetic data in certain limit.
8. method according to claim 7, is characterized in that, described by the one or more channels of scanning, a channel automatically and in described one or more channels connects, and comprising:
By transmitting channel access request, connect with the via node that responds at first described channel access request, to access channel; Wherein, the channel of each via node binding in one or more described via nodes.
9. according to the method described in claim 7 or 8, it is characterized in that, the parking space information that described transmission gathers, also comprises: described parking space information is positioned in specific Frame.
10. a wireless communications method, is characterized in that, comprising:
Second network address is added in the parking space information receiving; Wherein, described second network address has uniqueness;
By the channel of binding, forward described parking space information, wherein, the channel of described binding is identical with the channel of record in described parking space information, and, by response, be about to send the channel access request of the parking stall measure node of parking space information, to described parking stall measure node, return to the channel number of the channel of described binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565695.3A CN103632570A (en) | 2013-11-13 | 2013-11-13 | Wireless transmission method and wireless transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310565695.3A CN103632570A (en) | 2013-11-13 | 2013-11-13 | Wireless transmission method and wireless transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103632570A true CN103632570A (en) | 2014-03-12 |
Family
ID=50213561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310565695.3A Pending CN103632570A (en) | 2013-11-13 | 2013-11-13 | Wireless transmission method and wireless transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103632570A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968037A (en) * | 2015-05-29 | 2015-10-07 | 乐鑫信息科技（上海）有限公司 | Low-power-consumption Internet of Things realizing method based on proxy equipment |
| CN104978870A (en) * | 2014-04-09 | 2015-10-14 | 深圳市圣生源实业有限公司 | Parking space detection method |
| CN105070052A (en) * | 2015-07-17 | 2015-11-18 | 袁丽 | Wireless communication system and method used for intelligent traffic monitoring |
| CN105118303A (en) * | 2015-07-17 | 2015-12-02 | 袁丽 | Intelligent parking monitoring and management system and vehicle in-position detection method under parking mode |
| CN105392172A (en) * | 2015-11-27 | 2016-03-09 | 北京邮电大学 | Method and apparatus for establishing communication connection |
| CN106128162A (en) * | 2016-08-26 | 2016-11-16 | 云赛智联股份有限公司 | A kind of road parking stall reservation management platform |
| CN106408954A (en) * | 2016-01-27 | 2017-02-15 | 深圳骁腾科技有限公司 | Vehicle parking detection system and method |
| WO2017080519A1 (en) * | 2015-11-13 | 2017-05-18 | Huawei Technologies Co., Ltd. | Scaling Cloud Rendezvous Points In A Hierarchical And Distributed Manner |
| CN106910368A (en) * | 2017-04-07 | 2017-06-30 | 中科车港（深圳）实业股份有限公司 | A kind of vehicle parking management method, apparatus and system |
| CN107170274A (en) * | 2017-06-05 | 2017-09-15 | 广西英伟科技有限公司 | A kind of managing system of car parking |
| CN107222872A (en) * | 2017-06-23 | 2017-09-29 | 中国科学院上海微系统与信息技术研究所 | A kind of wireless self-organization network construction method |
| CN107864466A (en) * | 2017-10-30 | 2018-03-30 | 南京莱斯信息技术股份有限公司 | A kind of radio transmitting method of wireless parking guidance system |
| CN110278138A (en) * | 2019-06-27 | 2019-09-24 | 苏州市厚宏智能科技有限公司 | The communication system and method for kinds of goods management |
| CN112863237A (en) * | 2021-01-07 | 2021-05-28 | 上海镭芯微电子股份有限公司 | Wireless networking method and system of parking space detection device |
| CN114040424A (en) * | 2021-11-09 | 2022-02-11 | 杭州电力设备制造有限公司 | Sensor network communication system, method, device and storage medium |
| CN114710480A (en) * | 2022-04-08 | 2022-07-05 | 西南科技大学 | Method and system for processing read-out electronic data |
| CN117156421A (en) * | 2023-10-31 | 2023-12-01 | 北京市农林科学院 | Livestock prompting method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102693644A (en) * | 2012-05-29 | 2012-09-26 | 杭州快泊信息技术有限公司 | Parking lot vacancy information collecting method based on wireless sensor network |
| KR20120111362A (en) * | 2011-03-31 | 2012-10-10 | 한국전자통신연구원 | Comprehensive information service system for parking using wireless mobile device |
| CN102760363A (en) * | 2012-07-18 | 2012-10-31 | 无锡赛思汇智科技有限公司 | Parking place monitoring system based on combination of weak magnetic sensor and self-organized network technology |
| CN103036604A (en) * | 2012-12-21 | 2013-04-10 | 浙江大学城市学院 | Urban wayside parking space relay communication protocol implementation method based on internet of things |
| CN203055178U (en) * | 2012-12-05 | 2013-07-10 | 北京时代凌宇科技有限公司 | Apparatus and system for managing parking stalls of parking lot |
| CN203204860U (en) * | 2012-12-24 | 2013-09-18 | 北京时代凌宇科技有限公司 | Parking spot management system |
| CN103312705A (en) * | 2013-06-04 | 2013-09-18 | 腾讯科技（深圳）有限公司 | Data transmission method, device and system |
-
2013
- 2013-11-13 CN CN201310565695.3A patent/CN103632570A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120111362A (en) * | 2011-03-31 | 2012-10-10 | 한국전자통신연구원 | Comprehensive information service system for parking using wireless mobile device |
| CN102693644A (en) * | 2012-05-29 | 2012-09-26 | 杭州快泊信息技术有限公司 | Parking lot vacancy information collecting method based on wireless sensor network |
| CN102760363A (en) * | 2012-07-18 | 2012-10-31 | 无锡赛思汇智科技有限公司 | Parking place monitoring system based on combination of weak magnetic sensor and self-organized network technology |
| CN203055178U (en) * | 2012-12-05 | 2013-07-10 | 北京时代凌宇科技有限公司 | Apparatus and system for managing parking stalls of parking lot |
| CN103036604A (en) * | 2012-12-21 | 2013-04-10 | 浙江大学城市学院 | Urban wayside parking space relay communication protocol implementation method based on internet of things |
| CN203204860U (en) * | 2012-12-24 | 2013-09-18 | 北京时代凌宇科技有限公司 | Parking spot management system |
| CN103312705A (en) * | 2013-06-04 | 2013-09-18 | 腾讯科技（深圳）有限公司 | Data transmission method, device and system |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978870A (en) * | 2014-04-09 | 2015-10-14 | 深圳市圣生源实业有限公司 | Parking space detection method |
| CN104968037B (en) * | 2015-05-29 | 2018-07-06 | 乐鑫信息科技（上海）有限公司 | Low-power consumption Internet of Things implementation method based on agent equipment |
| US11265814B2 (en) | 2015-05-29 | 2022-03-01 | Espressif Systems (Shanghai) Co. Ltd. | Implementation method of low power consumption internet of things based on proxy apparatus |
| CN104968037A (en) * | 2015-05-29 | 2015-10-07 | 乐鑫信息科技（上海）有限公司 | Low-power-consumption Internet of Things realizing method based on proxy equipment |
| CN105070052A (en) * | 2015-07-17 | 2015-11-18 | 袁丽 | Wireless communication system and method used for intelligent traffic monitoring |
| CN105118303A (en) * | 2015-07-17 | 2015-12-02 | 袁丽 | Intelligent parking monitoring and management system and vehicle in-position detection method under parking mode |
| WO2017080519A1 (en) * | 2015-11-13 | 2017-05-18 | Huawei Technologies Co., Ltd. | Scaling Cloud Rendezvous Points In A Hierarchical And Distributed Manner |
| US10250717B2 (en) | 2015-11-13 | 2019-04-02 | Futurewei Technologies, Inc. | Scaling cloud rendezvous points in a hierarchical and distributed manner |
| US10116767B2 (en) | 2015-11-13 | 2018-10-30 | Furturewei Technologies, Inc. | Scaling cloud rendezvous points in a hierarchical and distributed manner |
| CN105392172A (en) * | 2015-11-27 | 2016-03-09 | 北京邮电大学 | Method and apparatus for establishing communication connection |
| CN105392172B (en) * | 2015-11-27 | 2019-02-19 | 北京邮电大学 | A kind of method and device for establishing communication connection |
| CN106408954A (en) * | 2016-01-27 | 2017-02-15 | 深圳骁腾科技有限公司 | Vehicle parking detection system and method |
| CN106128162A (en) * | 2016-08-26 | 2016-11-16 | 云赛智联股份有限公司 | A kind of road parking stall reservation management platform |
| CN106910368A (en) * | 2017-04-07 | 2017-06-30 | 中科车港（深圳）实业股份有限公司 | A kind of vehicle parking management method, apparatus and system |
| CN107170274A (en) * | 2017-06-05 | 2017-09-15 | 广西英伟科技有限公司 | A kind of managing system of car parking |
| CN107222872B (en) * | 2017-06-23 | 2018-10-19 | 中国科学院上海微系统与信息技术研究所 | A kind of wireless self-organization network construction method |
| CN107222872A (en) * | 2017-06-23 | 2017-09-29 | 中国科学院上海微系统与信息技术研究所 | A kind of wireless self-organization network construction method |
| CN107864466A (en) * | 2017-10-30 | 2018-03-30 | 南京莱斯信息技术股份有限公司 | A kind of radio transmitting method of wireless parking guidance system |
| CN110278138A (en) * | 2019-06-27 | 2019-09-24 | 苏州市厚宏智能科技有限公司 | The communication system and method for kinds of goods management |
| CN112863237A (en) * | 2021-01-07 | 2021-05-28 | 上海镭芯微电子股份有限公司 | Wireless networking method and system of parking space detection device |
| CN114040424A (en) * | 2021-11-09 | 2022-02-11 | 杭州电力设备制造有限公司 | Sensor network communication system, method, device and storage medium |
| CN114040424B (en) * | 2021-11-09 | 2024-05-24 | 杭州电力设备制造有限公司 | Sensor network communication system, method and device and storage medium |
| CN114710480A (en) * | 2022-04-08 | 2022-07-05 | 西南科技大学 | Method and system for processing read-out electronic data |
| CN117156421A (en) * | 2023-10-31 | 2023-12-01 | 北京市农林科学院 | Livestock prompting method and system |
| CN117156421B (en) * | 2023-10-31 | 2024-03-08 | 北京市农林科学院 | Livestock prompting method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103632570A (en) | Wireless transmission method and wireless transmission system | |
| CN101835315B (en) | Remote management system for LED street lamp | |
| CN104868846B (en) | Solar photovoltaic assembly array data acquisition method based on wireless Internet of Things | |
| CN104902654B (en) | The energy-efficient management system of wisdom illuminating street lamp and method based on GTiBee technologies | |
| CN102664960B (en) | Energy consumption managing system and method for large-sized public building | |
| CN102081853B (en) | Self-adaptive multi-level radio network signal lamp system and control method thereof | |
| CN101924391B (en) | Electric distribution network feeder automation system based on wireless ad hoc network and networking method thereof | |
| CN206331577U (en) | A kind of super low-power consumption remote measurement water level collection system based on LoRa technologies | |
| CN201535811U (en) | FL system of electric distribution network based on wireless communication | |
| CN104507134B (en) | A kind of wireless data information acquisition system based on Internet of Things | |
| CN110446176A (en) | A kind of information transmission system and method towards wide area distribution transformer terminal unit | |
| CN103634873A (en) | Wireless networking method of electric power meter reading system and electric power meter reading device system | |
| CN101287324A (en) | Distant measurement, communication, control method supporting illumination of ZigBee road lamp and electronic ballast | |
| CN102769894A (en) | Multi-gateway multi-node wireless sensor network and multi-gateway channel selection and node adaptive network access method for same | |
| CN102984265A (en) | Water environment monitoring method based on internet of things | |
| CN103298011A (en) | Power distribution network line fault on-line monitoring and positioning system and communication method | |
| CN101713652A (en) | Intelligent multi-sensor system and working method thereof | |
| CN103439927B (en) | A kind of electric pole long-distance monitoring method | |
| CN1874280A (en) | ZigCcc supported method for collecting data of electric energy and device for measuring electric energy | |
| CN102938892A (en) | Method for designing cross-layer protocol for cognitive wireless sensor network | |
| CN104316105A (en) | Tunnel environment monitoring system | |
| CN102715891A (en) | Wearable real-time wounded vital sign monitoring system based on radio frequency technology | |
| CN103929476A (en) | Vehicle hierarchical control network system and control method | |
| CN103118116A (en) | Smart city Internet of Things system based on street lamps | |
| CN104361727A (en) | Tunnel environment monitoring method based on wireless sensor network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: LEI ZHENSHAN Free format text: FORMER OWNER: BEIJING QINGCHUANG ZHITONG TECHNOLOGY CO., LTD. Effective date: 20150813 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150813 Address after: 100876 Beijing city Haidian District Xitucheng Road No. 10 Applicant after: Lei Zhenshan Address before: 100084. Office building 2, building 2, No. 1, Nongda South Road, Beijing, Haidian District, B-221 Applicant before: BEIJING QINGCHUANG ZHITONG TECHNOLOGY CO., LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140312 |