CN109413341A - A kind of internet of things networking method based on broadcasting and TV hfc plant - Google Patents
A kind of internet of things networking method based on broadcasting and TV hfc plant Download PDFInfo
- Publication number
- CN109413341A CN109413341A CN201811382741.5A CN201811382741A CN109413341A CN 109413341 A CN109413341 A CN 109413341A CN 201811382741 A CN201811382741 A CN 201811382741A CN 109413341 A CN109413341 A CN 109413341A
- Authority
- CN
- China
- Prior art keywords
- signal
- lora
- broadcasting
- hfc plant
- internet
- 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
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/265—Mixing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
-
- 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
Abstract
The invention discloses a kind of internet of things networking method based on broadcasting and TV hfc plant, by the way that LoRa signal is accessed hfc plant by distributor, by the pipeline cable advantage of cable television, Lora signal through wired medium propagation when due to decay well below air borne, signal is sent to subscriber household quality assurance and greatly improves, reduce more LoRa equipment investments, the frequency range of LoRa technology is mutually compatible with broadcasting and TV frequency range simultaneously, it is able to achieve the seamless incision of frequency, terminal separation panel need to be only set at user, without the terminal receiving device of customization frequency range, greatly reduce terminal and builds investment.
Description
Technical field
The present invention relates to a kind of network-building method of Internet of Things, in particular to a kind of fiber-coaxial based on traditional CHINA RFTCOM Co Ltd
The internet of things networking method of route.
Background technique
LoRa(Long Range) as currently a popular one of Internet of Things wireless communication technique, have anti-interference ability,
With anti-fading, anti-multipath jamming ability and the advantages such as low-power consumption and long transmission distance.
LoRa provides 470-510MHz frequency range in China at present, which can directly exist in broadcasting and TV usable spectrum
HFC(hybrid fiber coax) seamless access of signal can be realized in network application relevant device.In addition, low cost, skill
The LoRa module of art relative maturity is very universal in market.Therefore, networking is carried out by favor by LoRa technology.
In view of the various advantages of lora technology, various regions operator carries out pilot one after another or disposes the covering of LoRa signal.
But on the current technology, though LoRa technology have the characteristics that extensively cover, due between corridor transmitting signal need to penetrate it is multiple
Barrier, voucher Lora signal are difficult to realize the signal covering of entire building space, necessarily will cause signal blind zone.Therefore, it is intended that
Need to install the multiple base stations LoRa ability breakthrough bottlenecks, but cost in this way can rise at double therewith.
For example, generally requiring 2 base stations LoRa or gateway if 10 floor of building, a need are mounted in first 5 layers
Between region (putting place in such as 2 buildings or 3 buildings buildings), another need to be mounted on after 5 floor (putting place in such as 7 buildings or 8 buildings buildings) installing zone
Domain, this 10 layers of users of ability basic guarantee have signal covering.Therefore, if destination is higher, the base station LoRa needed is got over
It is more, for the base station LoRa high for cost, undoubtedly become an important cost factor of networking.
Summary of the invention
The purpose of the present invention is to provide one kind to reduce LoRa signal frequency point under the premise of guaranteeing signal transmission quality and sets
The internet of things networking method of standby investment.
A kind of internet of things networking method based on broadcasting and TV hfc plant, which comprises the following steps:
LoRa signal is accessed into hfc plant by distributor；
In CATV(broadcasting and TV cable TV network) by equipment or CCMTS equipment setting signal coupler for matching hfc plant electricity
The impedance of cable, and LoRa radiofrequency signal is mixed into hfc plant；
Terminal separation panel is arranged at user to separate the broadcasting and TV TV signal in hfc plant with LoRa signal.
The internet of things networking mode, by the way that LoRa signal is accessed hfc plant by distributor, by cable television
Pipeline cable advantage, Lora signal through wired medium propagation when due to decay well below air borne, signal is sent to use
The quality assurance of family family greatly improves, and reduces more LoRa equipment investments, while the frequency range of LoRa technology and broadcasting and TV frequency range are mutually simultaneous
Hold, be able to achieve the seamless incision of frequency, terminal separation panel need to be only set at user, the terminal without customization frequency range connects
Receiving unit greatly reduces terminal and builds investment.
Detailed description of the invention
Fig. 1 is the structure chart that the present invention carries out the networking plan that signal couples using CATV equipment with LoRa.
Specific embodiment
As shown in Figure 1, accessing distributor by the LoRa frequency point for being installed on intermediate floor, LoRa signal is made to pass through signal coupling
Clutch mixes the CHINA RFTCOM Co Ltd signal in CATV equipment or CCMTS equipment with LoRa signal, and passes in hfc plant
It is defeated, and the allocated device is distributed to different users, and terminal is arranged at user and separates panel for the broadcasting and TV TV letter in hfc plant
It number is separated with LoRa signal.
By LoRa over cable scheme, by the pipeline cable advantage of cable television, Lora signal is through wired medium
Propagation when due to decaying well below air borne, signal is sent to subscriber household quality assurance and greatly improves, and reduces more
LoRa equipment investment, the specific steps are as follows:
(1) do not conflicted due to LoRa signal frequency point with existing broadcasting and TV signal frequency point, seamless access can be directly realized by；
(2) HFC net is matched by signal coupler by the CATV equipment or CCMTS equipment for being located at corridor, staircase, corridor etc.
LoRa radiofrequency signal is mixed into broadcasting and TV hfc plant by the impedance of network cable
(3) broadcasting and TV TV signal passes through hfc plant together with LoRa signal and is transmitted to each floor or each user family, then by fixed
The terminal separation panel of system isolates broadcasting and TV TV signal and LoRa signal, and internet-of-things terminal can be real by connection LoRa signal
Now communicate.
By above-mentioned example, if 10 floor of building, by the transmission at wired network, LoRa signal greatly reduces sky
Between loss of signal, directly can establish a base station/gateway, Ji Kebao at the centre of 10 floors (such as 5 buildings or 6 buildings building places of putting)
Demonstrate,proving this 10 layers of users has signal covering.
Therefore networking cost, while the reduction of LoRa node are reduced in addition to reducing LoRa equipment investment by this kind of mode
Also it can mitigate O&M pressure.
Signal coupler, that is, signal mixer of the invention can mix the radiofrequency signal of different frequency more than two
It is combined, the radiofrequency signal for forming broadband all the way is exported by the same hfc plant.
The radiofrequency signal that terminal separation panel of the invention can will receive divides into two interfaces alternating transmission down, and one
A interface is that wire radio signal is continued to be transferred to user terminal, such as set-top box equipment by coaxial line；Another interface is then
By matching impedance ohm cable transmission or receive electromagnetic wave wireless signal, i.e. LoRa signal carries out data interaction.
LoRa over cable is realized through the above way, all of great advantage to various aspects:
(1) since the transmission of wired medium greatly ensure that signal quality, the mating investment of track remodelling and resource of reduction.Only
It needs that one LoRa node is installed in intermediate floor, so that installation node greatly reduces compared to original scheme, and due to not needing
The base station LoRa is built again, so that convenient, flexible, mitigation maintenance personnel's pressure is built in installation.
(2) frequency range of LoRa technology is mutually compatible with broadcasting and TV frequency range, is able to achieve the seamless incision of frequency, without customization frequency
The terminal receiving device of section greatly reduces terminal and builds investment.
(3) a wide range of basic network deployment is able to achieve using loRa, implements monitoring, radio meter register for municipal administration in the future
The network coverage is established etc. new-type field, realizes the connection of Internet of Things.
Claims (4)
1. a kind of internet of things networking method based on broadcasting and TV hfc plant, which comprises the following steps:
LoRa signal is accessed into hfc plant by distributor；
Setting signal coupler is used to match the impedance of hfc plant cable by CATV equipment or CCMTS equipment, and LoRa is penetrated
Frequency signal is mixed into hfc plant；
Terminal separation panel is arranged at user to separate the broadcasting and TV TV signal in hfc plant with LoRa signal.
2. internet of things networking method according to claim 1, it is characterised in that: the CATV equipment or CCMTS equipment have
Two or more, and it is set to the floor of different height.
3. the internet of things networking method according to claim 1 based on broadcasting and TV hfc plant, it is characterised in that: the signal
Coupler can mix the radiofrequency signal of different frequency more than two, form broadband rf signal all the way and pass through institute
Hfc plant is stated to be exported.
4. the internet of things networking method according to claim 3 based on broadcasting and TV hfc plant, it is characterised in that: terminal separation
The radiofrequency signal received is divided into two interfaces alternating transmission down by panel, and an interface is broadcasting and TV TV signal
Continue to be transferred to user terminal by coaxial line, another interface then passes through matching impedance ohm cable transmission or receives LoRa signal
To carry out data interaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382741.5A CN109413341A (en) | 2018-11-20 | 2018-11-20 | A kind of internet of things networking method based on broadcasting and TV hfc plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811382741.5A CN109413341A (en) | 2018-11-20 | 2018-11-20 | A kind of internet of things networking method based on broadcasting and TV hfc plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109413341A true CN109413341A (en) | 2019-03-01 |
Family
ID=65474035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811382741.5A Pending CN109413341A (en) | 2018-11-20 | 2018-11-20 | A kind of internet of things networking method based on broadcasting and TV hfc plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109413341A (en) |
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| CN107770060A (en) * | 2017-10-25 | 2018-03-06 | 合肥润东通信科技股份有限公司 | A kind of things-internet gateway system based on wire and wireless integration technology |
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2018
- 2018-11-20 CN CN201811382741.5A patent/CN109413341A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201243307Y (en) * | 2008-07-02 | 2009-05-20 | 福建先创电子有限公司 | Novel energy-saving chamber subsystem for wireless network |
| CN202364383U (en) * | 2011-11-23 | 2012-08-01 | 武汉安德瑞科技有限公司 | Depth coverage system for realizing wireless signal to building/home by using CATV (Community Antenna Television) coaxial cables |
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| CN103929314A (en) * | 2013-01-12 | 2014-07-16 | 陕西天思信息科技有限公司 | Multi-mode access novel EOC device |
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Application publication date: 20190301 |