CN109167970A - A kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology - Google Patents
A kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology Download PDFInfo
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- CN109167970A CN109167970A CN201811183227.9A CN201811183227A CN109167970A CN 109167970 A CN109167970 A CN 109167970A CN 201811183227 A CN201811183227 A CN 201811183227A CN 109167970 A CN109167970 A CN 109167970A
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- Prior art keywords
- wireless
- frequency
- host
- wifi equipment
- band signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Abstract
The invention belongs to wireless video monitoring fields, specially a kind of anti-tampering Wireless video transmission method based on 2.4G wireless technology, the method is related to multiple radio video monitoring devices and wireless image recording host (hereinafter referred to as host), and the radio video monitoring device and host have the frequency conversion apparatus for 500M-1G frequency band signals and 2.4G frequency band signals to be realized to conversion；The method specifically: step 1: the wireless signal that the 2.4G frequency band signals of wifi equipment are converted to 500M-1G frequency range is sent in space by radio video monitoring device by collected video data transmission to wifi equipment, by frequency conversion apparatus；Step 2: the frequency conversion apparatus of host side conducts after the 500M-1G frequency range wireless signal received is converted to 2.4G frequency band signals to wifi equipment；Step 3:wifi equipment sends the video data received to host computer system processes.The present invention provides a kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology, strong antijamming capability fast with transmission speed, the good advantages of diffracting power.
Description
Technical field
The present invention relates to wireless video monitoring fields, and in particular to be a kind of anti-tampering nothing based on 2.4G wireless technology
Line video transmission method and system.
Background technique
2.4G wifi is a kind of wireless technology, since its frequency range is between 2.400GHz~2.4835GHz, so simple
Claim 2.4G wireless technology；It (is not needed outer with low-voltage, high efficiency, low cost, bi-directional high-rate data transmission, special small size
Connect big antenna), have fast frequency-hopped, forward error correction, verification etc. functions, be widely adopted in the whole world.
But its disadvantage is obvious, diffraction effect is poor, is easy to be influenced by outer signals, anti-tampering ability is poor.
In wireless video monitoring field, especially in reception of wireless signals and sending device concentration, environment complexity, obstacle
In the case that object is more, situations such as vision signal is easy to appear loss, messy code.
Summary of the invention
The purpose of the present invention is to provide a kind of anti-tampering Wireless video transmission method based on 2.4G wireless technology and it is
System, strong antijamming capability fast with transmission speed, the good advantage of diffracting power.
To achieve the above object, the invention provides the following technical scheme: a kind of anti-tampering nothing based on 2.4G wireless technology
Line video transmission method, the method are related to multiple radio video monitoring devices and host, the wireless video monitoring dress
Set the frequency conversion apparatus having with host for 500M-1G frequency band signals and 2.4G frequency band signals to be realized to conversion；
The method specifically: step 1: radio video monitoring device is by collected video data transmission to monitoring client
Wifi equipment, the 2.4G frequency band signals of wifi equipment are converted to the wireless communication of 500M-1G frequency range by frequency conversion apparatus
It number is sent in space；
Step 2: the 500M-1G frequency range wireless signal received is converted to 2.4G frequency range by the frequency conversion apparatus of host side
Signal transduction to host side wifi equipment；
Step 3: the wifi equipment of host side sends the video data received to host computer system processes.
In the above-mentioned anti-tampering Wireless video transmission method based on 2.4G wireless technology, the 500M-1G frequency range
The frequency of signal includes 700MHz, 800MHz, 900MHz, the ISM band of predominantly 802.11ah application.
Meanwhile the invention also discloses a kind of anti-tampering wireless video transmission systems based on 2.4G wireless technology, including
Multiple radio video monitoring devices and host, the radio video monitoring device and host have frequency conversion apparatus；
The wifi equipment of collected video data transmission to monitoring client is passed through prison by the radio video monitoring device
The 2.4G frequency band signals of the wifi equipment of monitoring client are converted to the wireless signal of 500M-1G frequency range by the frequency conversion apparatus at control end
It is sent in space；
The frequency conversion apparatus of the host side for carrying out the conduction of RF signal between wifi equipment, by 2.4G frequency range
Signal and 500M-1G frequency band signals realize the 500M-1G frequency band signals converted, in reception space；
The host is used to receive the video data that processing wifi equipment transmits and storage, support remote access.
In the above-mentioned anti-tampering wireless video transmission system based on 2.4G wireless technology, the wireless video monitoring
The frequency conversion apparatus of both device and host is by by the 2.4G frequency band signals and 500MHz-1GHz frequency range of wifi equipment
Wireless signal mutually switch after carry out data transmission.
Compared with prior art, the beneficial effects of the present invention are:
The invention comprehensively utilizes 2.4GHz wireless technology high speed data transfers advantage and 700MHz, 800MHz or
The advantage that the frequency band signals diffracting power of 900MHz is strong, anti-interference ability is good；Radio video monitoring device or host and frequency turn
2.4GHz wifi equipment between changing device is modulated using OFDM, so transmission speed is fast, and space propagation uses
The transmission of 802.11ah low-band signal, antinoise signal fading capability is good, using the advantage that its long distance transmission is stable, solves tradition
Contradiction in low-frequency wireless transmission plan between transmission speed and transmission stability.
It can guarantee nothing by means of the present invention in the place that application environment complexity, wireless receiving and sending device are concentrated
The rate and stability of line communication data transfer.
Detailed description of the invention
Fig. 1 is the flow diagram of the embodiment of the present invention 1；
Fig. 2 is the structural block diagram of the embodiment of the present invention 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Fig. 1, a kind of anti-tampering Wireless video transmission method based on 2.4G wireless technology, the method are related to
Multiple radio video monitoring devices and host, the radio video monitoring device and host have for by 500M-1G frequency range
Signal and 2.4G frequency band signals realize the frequency conversion apparatus of conversion；
The method specifically: step 1: radio video monitoring device sets collected video data transmission to wifi
It is standby, the wireless signal that the 2.4G frequency band signals of wifi equipment are converted to 500M-1G frequency range is sent to by frequency conversion apparatus
In space；The frequency of the 500M-1G frequency band signals includes 700MHz, 800MHz, 900MHz, predominantly 802.11ah application
ISM band.
Step 2: the 500M-1G frequency range wireless signal received is converted to 2.4G frequency range by the frequency conversion apparatus of host side
Signal transduction is to wifi equipment；
Step 3:wifi equipment sends the video data received to host computer system processes.
By this method, defect that the is 2.4G signal diffracting power of wifi is poor, influencing vulnerable to the external world overcomes, and improves
Data transmission stability, the especially application in distributed wireless video monitoring field.
Embodiment 2
Referring to Fig.2, a kind of anti-tampering wireless video transmission system based on 2.4G wireless technology, including multiple wireless videos
Monitoring device 1 and host 4 are equipped with frequency conversion apparatus 2 between the radio video monitoring device 1 and host 4；
Collected video data transmission to wifi equipment 3, is passed through frequency conversion by the radio video monitoring device 1
The wireless signal that the 2.4G frequency band signals of wifi equipment 3 are converted to 500M-1G frequency range is sent in space by device 2；
The frequency conversion apparatus 2 for carrying out the conduction of RF signal between wifi equipment 3, by 2.4G frequency band signals and
500M-1G frequency band signals realize conversion, the 500M-1G frequency band signals in reception space or send 500M-1G frequency band signals to sky
Between in；
The host 4 is used to receive the video data that processing wifi equipment 3 transmits and storage, support remote access.
Specifically, pass through 2.4G frequency between the frequency conversion apparatus 2 and radio video monitoring device 1 or host 4
The wifi equipment 3 of the wireless signal of section carries out data transmission.
The 500MHz-1GHz frequency range obtained after being converted between radio video monitoring device or host by frequency conversion apparatus
Wireless signal carry out data transmission.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (4)
1. a kind of anti-tampering Wireless video transmission method based on 2.4G wireless technology, the method are related to multiple wireless videos
Monitoring device and host, which is characterized in that the radio video monitoring device and host has for believing 500M-1G frequency range
Number and 2.4G frequency band signals realize conversion frequency conversion apparatus；
The method specifically: step 1: collected video data transmission is arrived monitoring client by radio video monitoring device
The 2.4G frequency band signals of wifi equipment are converted to the wireless signal of 500M-1G frequency range by frequency conversion apparatus by wifi equipment
It is sent in space；
Step 2: the 500M-1G frequency range wireless signal received is converted to 2.4G frequency band signals by the frequency conversion apparatus of host side
It conducts to the wifi equipment of host side；
Step 3: the wifi equipment of host side sends the video data received to host computer system processes.
2. the anti-tampering Wireless video transmission method according to claim 1 based on 2.4G wireless technology, which is characterized in that
The frequency of the 500M-1G frequency band signals includes 700MHz, 800MHz, 900MHz, the ISM frequency of predominantly 802.11ah application
Section.
3. a kind of anti-tampering wireless video transmission system based on 2.4G wireless technology, which is characterized in that including multiple wireless views
Frequency monitoring device and host, the radio video monitoring device and host have frequency conversion apparatus；
The wifi equipment of collected video data transmission to monitoring client is passed through monitoring client by the radio video monitoring device
Frequency conversion apparatus by the 2.4G frequency band signals of the wifi equipment of monitoring client be converted to 500M-1G frequency range wireless signal send
Into space；
The frequency conversion apparatus of the host side for carrying out the conduction of RF signal between wifi equipment, by 2.4G frequency band signals
The 500M-1G frequency band signals converted, in reception space are realized with 500M-1G frequency band signals；
The host is used to receive the video data that processing wifi equipment transmits and storage, support remote access.
4. the anti-tampering wireless video transmission system according to claim 3 based on 2.4G wireless technology, which is characterized in that
The frequency conversion apparatus of the radio video monitoring device and both hosts is by believing the 2.4G frequency range of wifi equipment
Number and 500MHz-1GHz frequency range wireless signal mutually switch after carry out data transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183227.9A CN109167970A (en) | 2018-10-11 | 2018-10-11 | A kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811183227.9A CN109167970A (en) | 2018-10-11 | 2018-10-11 | A kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology |
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| Publication Number | Publication Date |
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| CN109167970A true CN109167970A (en) | 2019-01-08 |
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| CN201811183227.9A Pending CN109167970A (en) | 2018-10-11 | 2018-10-11 | A kind of anti-tampering Wireless video transmission method and system based on 2.4G wireless technology |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070256108A1 (en) * | 2006-04-27 | 2007-11-01 | Jordan Du Val | Content Delivery to a Digital TV Using a Low-Power Frequency Converted RF Signal |
| CN201118835Y (en) * | 2007-07-13 | 2008-09-17 | 龚兵 | Wireless digital image transmission device |
| CN104457750A (en) * | 2014-11-17 | 2015-03-25 | 南京沃旭通讯科技有限公司 | Emergency rescue personnel location system and emergency rescue personnel location method |
| CN106657118A (en) * | 2016-12-31 | 2017-05-10 | 杭州古北电子科技有限公司 | Communication conversion method, conversion apparatus and conversion system |
| US20180092099A1 (en) * | 2011-08-17 | 2018-03-29 | Skyline Partners Technology Llc | Backhaul radio with adaptive beamforming and sample alignment |
-
2018
- 2018-10-11 CN CN201811183227.9A patent/CN109167970A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070256108A1 (en) * | 2006-04-27 | 2007-11-01 | Jordan Du Val | Content Delivery to a Digital TV Using a Low-Power Frequency Converted RF Signal |
| CN201118835Y (en) * | 2007-07-13 | 2008-09-17 | 龚兵 | Wireless digital image transmission device |
| US20180092099A1 (en) * | 2011-08-17 | 2018-03-29 | Skyline Partners Technology Llc | Backhaul radio with adaptive beamforming and sample alignment |
| CN104457750A (en) * | 2014-11-17 | 2015-03-25 | 南京沃旭通讯科技有限公司 | Emergency rescue personnel location system and emergency rescue personnel location method |
| CN106657118A (en) * | 2016-12-31 | 2017-05-10 | 杭州古北电子科技有限公司 | Communication conversion method, conversion apparatus and conversion system |
Non-Patent Citations (1)
| Title |
|---|
| 蔡士琦: "应用于2.4GHz双向变频系统的混沌跳频频率合成器的设计", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
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Application publication date: 20190108 |