CN209250635U - Power network coverage area control device based on power network characteristic - Google Patents
Power network coverage area control device based on power network characteristic Download PDFInfo
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- CN209250635U CN209250635U CN201920153967.1U CN201920153967U CN209250635U CN 209250635 U CN209250635 U CN 209250635U CN 201920153967 U CN201920153967 U CN 201920153967U CN 209250635 U CN209250635 U CN 209250635U
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Abstract
The utility model belongs to power line communication technology field, in particular to a kind of power network coverage area control device based on power network characteristic includes: the blocking equipment in power network transmission line；The blocking equipment filters and removes power line carrier communication signal for specific aim according to demand, and power network coverage area is divided into mutually independent multiple overlay areas.The utility model is realized for power network to be divided by setting blocking equipment relatively independent changes region repeatedly；And relatively independent power network is mutually linked as by an Ethernet local area network by network access device, realize the regeneration of signal and anti-interference, realize effective control to power network signal transmission ranges, avoid the hidden danger such as information security interference or monitoring, while guaranteeing communication quality, network range is effectively managed by segmentation or network regeneration, reduces the range of interference effect, the availability for improving power network communication has important directive significance for power network communication safe practice.
Description
Technical field
The utility model belongs to power line communication technology field, in particular to a kind of power network based on power network characteristic covers
Lid scope control device.
Background technique
Common local area network building mode mainly has wireless and two kinds wired.Currently, wired mode mainly passes through network electricity
Cable and optical fiber are realized, need additionally to be routed, and it is very inconvenient to use in the environment of being unfavorable for wiring.Wireless mode mainly leads to
Electromagnetic wave realization is crossed, but electromagnetic wave propagation is unable to accurately control, and is being easy to be interfered and monitored using such broadcast medium,
There are safety risks, and communication quality can be made to decline.Furthermore electromagnetic intensity is unevenly distributed, and coverage area can not often expire
Foot requires, and also causes great inconvenience to using.Data can be passed through power line carrier in electric wire by power line carrier technology
Upper transmission, signal can be propagated along electric wire, and the transmission of information is completed while realizing power supply.It can be by net using the technology
Network signal is sent to the range of electric wire covering, without additional wiring, is particularly suitable for being not suitable for wiring, makes every effort to the succinct ring of wiring
Border.Power line carrier technology only lays particular emphasis on how to transmit data on power line at present, is indifferent to the transmission range of signal
Control, since power line is an open structure, without control, signal, which may be transmitted to, not to be believed
The region appointed, causes information security hidden danger.Furthermore power line carrier is easy to decay in electric wire, interfere, and leads to power line carrier
Technology is not widely used, and needs that a kind of signal is anti-interference, regeneration means solve the above problems.
Summary of the invention
Aiming at the shortcomings in the prior art, the utility model provides a kind of power network coverage area based on power network characteristic
Control device and its method are realized effective segmentation and regeneration to power network transmission network, can be carried out to network coverage
Effectively control can effectively avoid the safety risks in communication process while guaranteeing communication quality.
According to design scheme provided by the utility model, a kind of power network coverage area control based on power network characteristic
Device includes: the blocking equipment in power network transmission line；The blocking equipment filters simultaneously for specific aim according to demand
Power line carrier communication signal is removed, power network coverage area is divided into mutually independent multiple overlay areas.
Above-mentioned, the blocking equipment is air switch, or the device of power network can be blocked for filter etc..
Above-mentioned, also include: for connecting the network equipment of relatively independent power network transmission line.
Preferably, the network equipment includes: the power line communication modulatedemodulate in each power network transmission line
Adjust device, and the network connection devices for connecting power line communication modem.
Further, the network connection devices are power line carrier transmission route, or are network connection route, or be
Network backplane interface etc. can connect the route of two separate networks.
The utility model has the beneficial effects that
The utility model is realized by setting blocking equipment is divided into power network relatively independent overlay area；And pass through
Relatively independent power network is mutually linked as one big signal net by network access device, realizes the regeneration and anti-interference, realization of signal
Effective control to power network signal transmission ranges avoids the hidden danger such as information security interference or monitoring, is guaranteeing communication quality
Meanwhile network range is effectively managed by segmentation or network regeneration, the range of interference effect is reduced, electric power Netcom is improved
The availability of letter has important directive significance for power network communication safe practice.
Detailed description of the invention:
Fig. 1 is blocking equipment connection schematic diagram in embodiment；
Fig. 2 is network access device scheme of installation in embodiment.
Specific embodiment:
To be clearer and more clear the purpose of this utility model, technical solution and advantage, with reference to the accompanying drawing and technical side
Case is described in further detail the utility model.
For in existing local area network wireless and wireless two kinds of networking modes, wiring is inconvenient, propagation is unable to accurately control, communicates
Quality such as can not ensure at the situations, because of its open structure in power line carrier communication, be easy to cause peace in signals transmission
The problems such as full hidden danger.For this purpose, the utility model embodiment, shown in Figure 1, a kind of power network based on power network characteristic is provided
Coverage area control device includes: the blocking equipment in power network transmission line；The blocking equipment is for according to demand
Specific aim filters and removes power line carrier communication signal, and power network coverage area is divided into mutually independent multiple areas of coverage
Domain.According to practical coverage area demand for control, settable multiple blocking equipments carry out the segmentation of power network coverage area, realize electricity
The accurate control of power net spread scope.
Above-mentioned, the blocking equipment is air switch, or the line of two separate networks can be connected for filter etc.
Road.In actual use, it can targetedly be decayed by filter etc., be eliminated, filtering power line carrier communication letter
Number, in the case of not interfering normal power source to supply, realize that the power line carrier transmitted in power line is removed.Homeplug powerline carrier wave
What the communication technology mainly followed is HomePlug series standard, and working frequency between 4.3 MHz -20.9 MHz, shine by family
Bright electricity consumption mainly has the standards such as 100-120V 60Hz AC/220-230V 50Hz AC.Due to the characteristic of power line carrier, it is easy
It is disturbed, it filters, cuts down, signal can be transmitted and be intervened.Blocking equipment can filter out 4.3 MHz-in power network by having
The filter of power line carrier function is constituted between 20.9 MHz, so that the power line carrier in the side of blocking equipment can not be worn
It crosses blocking equipment and reaches the other side, to realize the isolation of network.The filter that power-supply filter is made of capacitor, inductance and resistance
Wave circuit.Filter can the frequency other than the frequency point or the frequency point to specific frequency in power supply line effectively filter out, obtain
The power supply signal of one specific frequency, or eliminate the power supply signal after a specific frequency.Filter includes following type again: low
Bandpass filter is to allow the signal lower than cutoff frequency to pass through, but be higher than the intransitable electronic filtering of signal of cutoff frequency
Device.Bandpass filter is the equipment that the wave of a permission special frequency channel passes through while shielding other frequency ranges.Bandstop filter is
Refer to the filter that extremely low level can be decayed to by most of frequency components but by the frequency component of certain ranges.Use process
In, realize that power line carrier filtering is removed by using low-pass filter or using band logical (resistance) filter.
Above-mentioned, it is shown in Figure 2, also include: for connecting the network equipment of relatively independent power network transmission line.
By the signal relay function and power network signal removal function of power line device, pass through net in segregate two networks
Network connects equipment and two different electric power networks is connected into a network.A network enters B net by network access device relaying
While network, the regeneration and enhancing of signal have also been obtained.When power network is heavily disturbed to be communicated, pass through electric power
Net signal removal, isolation technology, network is split, and is reused Network Connection and is relayed, regenerated and enhanced, with this
The interference and blocking in route are resisted, the range of interference effect is reduced, improves the availability of power network communication.
Preferably, the network equipment includes: the power line communication modulatedemodulate in each power network transmission line
Adjust device, and the network connection devices for connecting power line communication modem.In Fig. 2, power line communication modem
With by signal from medium identification signal and by signal relaying, amplification, regeneration, and be transmitted to separately by network connection devices
Ability in one power line communication modem or medium.
Preferably, the network connection devices are power line carrier transmission route, or are network connection route, or be net
Network backplane interface.In figure, between the network that two are spaced, using network access device, arrive the signal in the network of left side
The power line communication modulation on right side is transmitted to by modes such as backboard or lines up to left side electric line communication modem
Demodulator carries out signal amplification and regeneration, then is transmitted to right side network by the power line on right side.In power network communication process
In, if filter plant is interference source, same blocking equipment can be taken to carry out network segmentation and avoided interference, realized anti-dry
It disturbs；Also being desirably integrated into has in the equipment obviously hindered power network communication, avoids the interference to power network communication.
In the utility model embodiment, is realized by setting blocking equipment and power network is divided into the relatively independent area of coverage
Domain；And relatively independent power network is mutually linked as by an Ethernet local area network by network access device, realize the regeneration of signal and is resisted
Effective control to power network signal transmission ranges is realized in interference, avoids the hidden danger such as information security interference or monitoring, logical in guarantee
While believing quality, network range is effectively managed by segmentation or network regeneration, reduces the range of interference effect, is improved
The availability of power network communication has important directive significance for power network communication safe practice.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that specific embodiment of the present utility model is only limitted to this, for the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, several simple deduction or replace can also be made, all should be considered as
Belong to the utility model and determines scope of patent protection by the claims submitted.To being stated in the disclosed embodiments
It is bright, so that professional and technical personnel in the field is can be realized or use the application.Various modifications to these embodiments are to this field
It will be apparent for professional technician, the general principles defined herein can not depart from spirit herein
Or in the case where range, realize in other embodiments.Therefore, the application is not intended to be limited to these implementations shown in this article
Example, and it is to fit to the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. a kind of power network coverage area control device based on power network characteristic passes, characterized by comprising: being set to power network
Blocking equipment in defeated route；The blocking equipment filters and removes power line carrier communication signal for specific aim according to demand,
Power network coverage area is divided into mutually independent multiple overlay areas.
2. the power network coverage area control device according to claim 1 based on power network characteristic, which is characterized in that institute
The blocking equipment stated is air switch, or is filter.
3. the power network coverage area control device according to claim 1 based on power network characteristic, which is characterized in that also
Include: for connecting the network equipment of relatively independent power network transmission line.
4. the power network coverage area control device according to claim 3 based on power network characteristic, which is characterized in that institute
The network equipment stated includes: the power line communication modem in each power network transmission line, and for connecting electricity
The network connection devices of line of force communication modem.
5. the power network coverage area control device according to claim 4 based on power network characteristic, which is characterized in that institute
The network connection devices stated are power line carrier transmission route, or are network connection route, or be network backplane interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920153967.1U CN209250635U (en) | 2019-01-29 | 2019-01-29 | Power network coverage area control device based on power network characteristic |
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| CN201920153967.1U CN209250635U (en) | 2019-01-29 | 2019-01-29 | Power network coverage area control device based on power network characteristic |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831228A (en) * | 2019-01-29 | 2019-05-31 | 张有为 | Power network coverage area control device and its method based on power network characteristic |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109831228A (en) * | 2019-01-29 | 2019-05-31 | 张有为 | Power network coverage area control device and its method based on power network characteristic |
| CN109831228B (en) * | 2019-01-29 | 2024-05-28 | 张有为 | Power network coverage control device and method based on power network characteristics |
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