CN108365856A - A kind of Internet of Things wireless signal transmission method under shielding environment - Google Patents
A kind of Internet of Things wireless signal transmission method under shielding environment Download PDFInfo
- Publication number
- CN108365856A CN108365856A CN201810006995.0A CN201810006995A CN108365856A CN 108365856 A CN108365856 A CN 108365856A CN 201810006995 A CN201810006995 A CN 201810006995A CN 108365856 A CN108365856 A CN 108365856A
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- CN
- China
- Prior art keywords
- wireless signal
- internet
- signal transmission
- things
- shielding environment
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses the Internet of Things wireless signal transmission methods under a kind of shielding environment, include the following steps：Information acquisition of Internet of things is carried out in shielding environment using information collecting device, it is radiofrequency signal by the Internet of Things modulates information of acquisition, and carry out antenna gain in modulated process and calculated with impedance auto-match, radiofrequency signal is exposed to the antenna in external environment by end and carries out wireless signal transmission.Further include：Wireless signal is received by the antenna, it will be in wireless signal transmission to shielding environment.The antenna is metal rod, and one end of metal rod is exposed in external environment, and the other end is connected to information collecting device by feeder line.Internet of Things wireless signal transmission method under shielding environment provided by the invention can make full use of the material and design feature of metal rod, using metal rod as the antenna of wireless signal, realize the high efficiency of transmission of wireless signal.
Description
Technical field
The present invention relates to wireless communication technology fields, and in particular to the Internet of Things wireless signal transmission under a kind of shielding environment
Method.
Background technology
In storage field of agricultural products, subsurface storage plays an increasingly important role.Soil heat transfer is slow, and temperature is more steady
It is fixed, and oxygen barrier moisturizing is sealed, the respiration of fruit makes carbon dioxide in cellar for storing things increase, and respiration of fruits effect is suppressed, water
Divide evaporation very low, makes cellar storage that can reach good fresh-keeping effect.
But often there is good seal in storage cellar, wireless signal is difficult to penetrated surface and metallic door, this
The signal for having led to subsurface storage chamber interior is difficult to be transferred to external environment so that many information of subsurface storage chamber interior,
The situation of various parameters and agricultural product including air can not all be transferred to user in time.
Invention content
The present invention provides the Internet of Things wireless signal transmission methods under a kind of shielding environment, can be in the environment of signal shielding
Under, it realizes the signal transmission inside and outside shielding environment, solves the problems, such as that wireless signal is difficult to externally transmit under shielding environment.
A kind of Internet of Things wireless signal transmission method under shielding environment, includes the following steps：
Information acquisition of Internet of things is carried out in shielding environment using information collecting device, by the Internet of Things modulates information of acquisition
It for radiofrequency signal, and carries out antenna gain in modulated process and is calculated with impedance auto-match, radiofrequency signal is exposed by end
Antenna in external environment carries out wireless signal transmission.
In order to improve the efficiency of wireless signal transmission, the present invention is carried out when being radiofrequency signal by Internet of Things modulates information
Antenna gain is calculated with impedance auto-match, and radiofrequency signal is made to have higher efficiency of transmission.
The Internet of Things wireless signal transmission method further includes：Wireless signal is received by the antenna, by wireless signal
It is transmitted in shielding environment.
Internet of Things wireless signal transmission method under shielding environment provided by the invention, including two parts, respectively will screen
The signal transmission in environment is covered to external environment, and will be in the wireless signal transmission to shielding environment in external environment.
The antenna be provided simultaneously with transmitting and receive wireless signal function, for realizing wireless signal shielding environment with
Transmission between external environment.
Preferably, the antenna is metal rod, one end of metal rod is exposed in external environment, and the other end passes through
Feeder line is connected to information collecting device.
The material of metal rod is unlimited, such as kirsite, stainless steel, cast iron etc..
Preferably, the shielding environment is the storeroom with closing door, described information collecting device is mounted on closing
Door runs through closing door towards the side of compartment interior, the metal rod.
Described information collecting device includes：Acquisition storage indoor temperature, moisture, the sensor of information such as carbon dioxide, with
And the micro-control unit of each sensor information of processing, the information of each sensor is handled by control unit, and will processing
As a result it is modulated to radiofrequency signal to be transmitted, the antenna gain is calculated with impedance auto-match and carried out in control unit.
Information collecting device further includes the display device and storage device for being controlled by the micro-control unit, and display device is used
In display Internet of Things information, storage device is for storing Internet of Things information.
Preferably, the closing door is arranged vertically, the metal rod is horizontally disposed.The metal rod is exposed to envelope
The length closed outdoors is 5~8cm.
Internet of Things wireless signal transmission method under shielding environment provided by the invention, can make full use of metal rod
Material and design feature realize the high efficiency of transmission of wireless signal using metal rod as the antenna of wireless signal.
Description of the drawings
Fig. 1 is the schematic device realized Internet of Things wireless signal transmission method of the present invention in storeroom and used；
Fig. 2 is that Internet of Things wireless signal transmission method is obtained with Internet of Things wireless signal transmission method of the present invention in the prior art
The relational graph of the wireless signal strength and transmission range that obtain.
Specific implementation mode
In order to make those skilled in the art more fully understand the present invention program, below in conjunction with attached drawing to the technical side of the present invention
Method is clearly and completely described.
For using the storeroom with closing door as shown in Figure 1 as enclosed environment, to Internet of Things wireless communication of the present invention
Number transmission method is described.
As shown in Figure 1, storeroom carries the closing door 1 arranged vertically, closing door 1 is installed towards the side of compartment interior
There is information collecting device 4, metal rod 3 is horizontally disposed and runs through closing door 1, and it is logical that metal rod 3 is located at the indoor one end of storage
It crosses feeder line 2 and is connected to information collecting device 4, the other end of metal rod 3 is exposed in external environment, and metal rod 3 is exposed to
Length outside closing door 1 is 5cm.
The materials such as kirsite, stainless steel, cast iron may be used in metal rod 3, and metal rod 3 completes signal hair as antenna
It penetrates and receives.
Antenna is the basic device for being used for emitting or receiving radio wave in engineering system, in radio system, by sending out
The radiofrequency signal for penetrating module output is transported to antenna by feeder line 2, and day bundle of lines radiofrequency signal is launched in the form of an electromagnetic wave.
The electromagnetic wave launched is received by antenna, becomes radiofrequency signal that is useful and being easily processed, then be transferred to by feeder line 2
Receiving module realizes transmission of the radio wave in space.
Internet of Things wireless signal transmission method under shielding environment provided by the invention, including two parts, respectively will screen
The signal transmission in environment is covered to external environment, and will be in the wireless signal transmission to shielding environment in external environment.
For the method that by the signal transmission in shielding environment to external environment, the present invention uses for：Utilize information collection
Equipment carries out information acquisition of Internet of things in shielding environment, is radiofrequency signal by the Internet of Things modulates information of acquisition, and modulating
Antenna gain and impedance auto-match is carried out in the process to calculate, radiofrequency signal by end be exposed to the antenna in external environment into
Row wireless signal is sent.
In the prior art, carry out Internet of Things wireless signal transmission when, by Internet of Things modulates information be radiofrequency signal after, by day
Line carries out wireless signal transmission and increases antenna gain and automatic of impedance during modulated radio signal in of the invention
With calculating.
Antenna can be regarded as a resonant tank, and for resonant tank there are impedance, the circuit being connected with antenna must be with day
Line impedance having the same.Therefore, the feeder line being connected with antenna, impedance must can be only achieved most as the impedance of antenna
Good signal transmission effect.When feeder line and antenna match, there was only incidence wave on feeder line, without back wave, high-frequency energy is whole
It is supported absorption, maximum power transmission will be obtained.Conversely, when circuit impedance mismatch, it not only cannot get maximum power and pass
It is defeated, it is also possible to which that damage is generated to circuit.
Its real representation of antenna gain is the effect for amplifying ideal radiation energy on the point of space.Assuming that certain point
Transmission power is P1, the unit area power at distance d is：
P=P1/(4πd2) (1)
For actual antennas, if radiant power is P1, antenna gain G, then corresponding unit area power be：
P=P1G/(4πd2) (2)
By comparing formula (1) and (2), it can be seen that transimission power has apparent increase after additional antenna gains.
As shown in Fig. 2, in wireless signal transmission method provided by the invention, pass through antenna gain and impedance auto-match meter
It calculates, makes the matches impedances of radiofrequency signal and metal rod, increase the signal strength of wireless transmission, and improve the effect of signal transmission
Rate.
In same position, detection respectively uses the nothing of the wireless signal strength and existing method of radio transmitting method of the present invention
Line signal strength, testing result are as shown in Figure 2.It is obviously big using the wireless signal strength of the method for the present invention by comparing discovery
In the wireless signal strength detected by conventional technique method.
For by method that in the wireless signal transmission to shielding environment in external environment, the present invention uses for：Pass through institute
It states antenna and receives wireless signal, and will be in wireless signal transmission to shielding environment.
Antenna is provided simultaneously with transmitting and receive capabilities, for transmitting signal inside and outside shielding environment.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula carries out change and modification appropriate.Therefore, the invention is not limited in specific implementation modes disclosed and described above, to this
Some modifications and changes of invention should also be as falling into the scope of the claims of the present invention.In addition, although this specification
In used some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (6)
1. the Internet of Things wireless signal transmission method under a kind of shielding environment, which is characterized in that include the following steps：
Information acquisition of Internet of things is carried out in shielding environment using information collecting device, is to penetrate by the Internet of Things modulates information of acquisition
Frequency signal, and carry out antenna gain in modulated process and calculated with impedance auto-match, radiofrequency signal is exposed to outer by end
Antenna in portion's environment carries out wireless signal transmission.
2. the Internet of Things wireless signal transmission method under shielding environment as described in claim 1, which is characterized in that further include：
Wireless signal is received by the antenna, it will be in wireless signal transmission to shielding environment.
3. the Internet of Things wireless signal transmission method under shielding environment as described in claim 1, which is characterized in that the antenna
One end for metal rod, metal rod is exposed in external environment, and the other end is connected to information collecting device by feeder line.
4. the Internet of Things wireless signal transmission method under shielding environment as claimed in claim 3, which is characterized in that the shielding
Environment is the storeroom with closing door, and described information collecting device is mounted on side of the closing door towards compartment interior, institute
It states metal rod and runs through closing door.
5. the Internet of Things wireless signal transmission method under shielding environment as claimed in claim 4, which is characterized in that the closing
The vertical arrangement of door, the metal rod are horizontally disposed.
6. the Internet of Things wireless signal transmission method under shielding environment as claimed in claim 4, which is characterized in that the metal
It is 5~8cm that rod piece, which is exposed to the length outside closing door,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006995.0A CN108365856A (en) | 2018-01-04 | 2018-01-04 | A kind of Internet of Things wireless signal transmission method under shielding environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810006995.0A CN108365856A (en) | 2018-01-04 | 2018-01-04 | A kind of Internet of Things wireless signal transmission method under shielding environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108365856A true CN108365856A (en) | 2018-08-03 |
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ID=63010687
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810006995.0A Pending CN108365856A (en) | 2018-01-04 | 2018-01-04 | A kind of Internet of Things wireless signal transmission method under shielding environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049022A (en) * | 2021-03-09 | 2021-06-29 | 西安奕斯伟设备技术有限公司 | Detection equipment and single crystal furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308568A (en) * | 2013-05-28 | 2013-09-18 | 浙江大学 | Wireless electronic nose system for remotely monitoring quality of agricultural product |
| CN203783272U (en) * | 2014-04-10 | 2014-08-20 | 林光海 | Intelligent electronic lock |
| CN204632909U (en) * | 2015-05-22 | 2015-09-09 | 福建三鑫隆信息技术开发股份有限公司 | The detachable antenna assembly of a kind of well lid |
| CN205078031U (en) * | 2015-09-07 | 2016-03-09 | 宁波大榭开发区甬旺保险箱有限公司 | Bluetooth signal control's safe |
| CN206058495U (en) * | 2016-08-18 | 2017-03-29 | 国家电网公司 | Signal blind spot user's electrical information vasculum |
-
2018
- 2018-01-04 CN CN201810006995.0A patent/CN108365856A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308568A (en) * | 2013-05-28 | 2013-09-18 | 浙江大学 | Wireless electronic nose system for remotely monitoring quality of agricultural product |
| CN203783272U (en) * | 2014-04-10 | 2014-08-20 | 林光海 | Intelligent electronic lock |
| CN204632909U (en) * | 2015-05-22 | 2015-09-09 | 福建三鑫隆信息技术开发股份有限公司 | The detachable antenna assembly of a kind of well lid |
| CN205078031U (en) * | 2015-09-07 | 2016-03-09 | 宁波大榭开发区甬旺保险箱有限公司 | Bluetooth signal control's safe |
| CN206058495U (en) * | 2016-08-18 | 2017-03-29 | 国家电网公司 | Signal blind spot user's electrical information vasculum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049022A (en) * | 2021-03-09 | 2021-06-29 | 西安奕斯伟设备技术有限公司 | Detection equipment and single crystal furnace |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180803 |
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| RJ01 | Rejection of invention patent application after publication |