CN109904616B - Wireless high-definition video monitoring system based on glass decoration antenna - Google Patents
Wireless high-definition video monitoring system based on glass decoration antenna Download PDFInfo
- Publication number
- CN109904616B CN109904616B CN201910160978.7A CN201910160978A CN109904616B CN 109904616 B CN109904616 B CN 109904616B CN 201910160978 A CN201910160978 A CN 201910160978A CN 109904616 B CN109904616 B CN 109904616B
- Authority
- CN
- China
- Prior art keywords
- antenna
- dielectric
- dielectric substrate
- monitoring system
- metamaterial
- 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.)
- Active
Links
Images
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a glass decoration antenna-based wireless high-definition video monitoring system, which is a dielectric resonator antenna and comprises a dielectric resonator, a dielectric substrate, a ground plane, metamaterial unit arrays, microstrip lines and gaps, wherein the ground plane is arranged in the middle of the upper surface of the dielectric substrate, a row of metamaterial unit arrays are respectively distributed on two sides of the ground plane on the upper surface of the dielectric substrate, the microstrip lines are arranged in the middle of the lower surface of the dielectric substrate, a row of metamaterial unit arrays are respectively distributed on two sides of the microstrip lines on the lower surface of the dielectric substrate, the rectangular gaps are formed in the middle of the ground plane on the dielectric substrate, and the dielectric resonator is arranged above the gaps. The decorative antenna adopts a side-loading metamaterial unit mode, inhibits surface waves in a dielectric plate and side waves of a dielectric resonator, and improves the gain of the antenna from 5.65dBi to 8.2dBi without sacrificing the impedance bandwidth performance of the antenna. The invention has the characteristics of high gain and low section.
Description
Technical Field
The invention relates to the technical field of video monitoring, in particular to a wireless high-definition video monitoring system based on a glass decorative antenna.
Background
In recent years, video monitoring systems have been widely used in banks, factories, hospitals, campuses, shopping malls, supermarkets, houses and other places, and have a great role in protecting public property, personal property and family safety. The video monitoring system can be divided into a wired video monitoring system and a wireless video monitoring system according to whether a cable is needed or not. Compared with a wired video monitoring system, the wireless video monitoring system has the advantages of long transmission distance, small signal attenuation, flexible erection, low comprehensive cost and the like, and is widely applied to daily production and living environments.
With the development of scientific technology and the improvement of the living standard of people, the requirements of users on wireless video monitoring systems are higher and higher. Besides the requirement of basic monitoring function, the definition, intelligence and artistic appreciation of the system are more and more paid attention and considered by users. The traditional 1080P high-definition video cannot meet the requirements of a monitoring system, and the 5 million and 8 million pixel-level ultrahigh-definition video becomes a new development direction of the monitoring system. The traditional H.264 coding standard can not meet the network transmission requirements of ultra-high definition and 4K image quality under the existing network environment, and the development of a high-definition network monitoring system is restricted.
The antenna in the wireless video monitoring system can convert the guided wave on the transmission line into the electromagnetic wave transmitted in the air, and the video transmission quality and the transmission distance of the system are directly influenced. Therefore, the design of the antenna is very important in a wireless video monitoring system. At present, antennas in a wireless video monitoring system can be divided into two categories, namely an internal antenna and an external antenna, the traditional external antenna generally adopts a metal oscillator antenna, and compared with the internal antenna, the external antenna has higher gain, but the traditional external metal oscillator antenna has large volume, single structure and poor appearance aesthetic feeling. The built-in antenna directly etches the antenna in the printed circuit board, has the advantages of small volume and low cost, but has the defects of lower gain and poor directivity.
Scholars.a.long in 1983 proposed for the first time a dielectric resonator antenna which has the advantages of high radiation efficiency, small size, low cost, light weight and wide bandwidth compared with the traditional metal oscillator and microstrip antenna, and has been widely noticed and researched by scholars all over the world. Among them, the method for improving the gain of the dielectric resonator antenna has been a research hotspot. At present, the research methods of the gain of the dielectric resonator antenna mainly include an antenna array, an increase of a reflecting surface, adoption of a metamaterial structure covering above the antenna and change of the structure of the dielectric resonator antenna. However, these methods increase the height and volume of the antenna profile, which is not favorable for miniaturization of the antenna. Therefore, the dielectric resonant antenna with low section and high gain has wide application prospect.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a glass decoration antenna-based wireless high-definition video monitoring system in order to solve the problems of low video definition, large antenna volume, low gain, single structure and lack of aesthetic feeling in the traditional wireless video monitoring system.
The technical scheme for solving the technical problem is as follows:
the utility model provides a wireless high definition video monitored control system based on glass decorates antenna, wireless high definition video monitored control system includes the camera module, the video processor module, wireless network card module, glass decorates antenna module, monitor terminal module, power module, glass decorates antenna is a medium resonator antenna, including medium resonator, the medium base plate, the horizon, super material unit array, the microstrip line, the gap, set up the horizon in the middle of the medium base plate upper surface, the both sides of the horizon of medium base plate upper surface respectively distribute one row of super material unit array, be provided with the microstrip line in the middle of the medium base plate lower surface, the both sides of medium base plate lower surface microstrip line respectively distribute one row of super material unit array, open rectangle gap in the middle of the horizon on the medium base plate, set up medium resonator above the gap.
The dielectric resonator is made of lead glass with a cubic structure, and the dielectric constant of the lead glass is 6.
The metamaterial unit is in a rectangular patch shape, the metamaterial is copper, and the number of units in the metamaterial array is 20.
The metamaterial unit array is divided into four rows, five metamaterial units in each row are uniformly distributed on two sides of the ground plane and the microstrip line, and the spacing distance between the metamaterial unit array and the dielectric resonator is smaller than one antenna wavelength. The distance between each unit of the metamaterial unit array is 0.2-1 antenna wavelength.
The invention has the beneficial effects that:
1. the wireless high-definition video monitoring system has high video definition, and the H.265 coding compression algorithm of the embedded processor HI3519 is adopted, so that compared with the traditional H.264 coding and decoding standard, the H.265 coding standard is greatly improved in aspects of a partition structure, motion prediction, motion compensation, parallel processing and the like, so that the wireless high-definition video monitoring system has higher coding efficiency, can save nearly half of code rate, solves the problem of transmission bandwidth bottleneck in the high-definition video monitoring system, and realizes acquisition, compression, processing, transmission and display of 800 ten thousand-pixel high-definition videos in the HI 3519.
2. The glass decorative antenna adopts a side-loading metamaterial unit mode, inhibits surface waves in a dielectric plate and side waves of a dielectric resonator, and improves the gain of the antenna from 5.65dBi to 8.2dBi under the condition of not sacrificing the impedance bandwidth performance of the antenna. Compared with the traditional mode that the metamaterial and the antenna cover are loaded above the antenna by changing the structure of the antenna, the design scheme provided by the invention has the characteristic of low profile.
3. The glass decorative antenna has the dual functions of the antenna and decorative artworks. Compared with the traditional metal oscillator antenna, the antenna has the advantages of high gain, strong directivity, wide bandwidth and attractive structure.
4. The glass decorative antenna adopts gap coupling feed, and the radiation structure and the microstrip line feed structure are isolated by the dielectric substrate, so that the antenna and the microwave circuit can realize circuit isolation, and the stability and the reliability of the system are enhanced.
5. The glass decorative antenna is a dielectric resonator antenna, and compared with the traditional metal oscillator antenna, the dielectric resonator antenna has the advantages of high efficiency, small volume, light weight and low cost.
6. The invention has the advantage of high integration level, completes video image processing, compression and transmission in the video processor HI3519, greatly reduces the volume of the system, can be carried about, and enhances the mobility and flexibility of the system.
Drawings
FIG. 1 is a block diagram of the overall system architecture of the present invention.
Fig. 2 is a side view and a top view of the glass-decorated antenna of the present invention.
FIG. 3 is a reflection coefficient diagram of the glass decoration antenna according to the present invention.
FIG. 4 is a XOZ gain pattern for the glass-decorated antenna of the present invention.
Fig. 5 is a YOZ gain pattern for the glass-decorated antenna of the present invention.
Detailed Description
A wireless high-definition video monitoring system based on a glass decoration antenna is composed of a camera module 1, a video processor module 2, a wireless network card module 3, a glass decoration antenna module 4, a monitoring terminal module 5 and a power supply module 6. The camera module 1 is electrically connected with the video processor module 2 through an MIPI interface, the video processor module 2 is electrically connected with the wireless network card module 3 through a USB interface, the wireless network card module 3 is electrically connected with the glass decorative antenna module 4 through a coaxial line, and the power supply module 6 supplies required voltage to the camera module 1, the video processor module 2 and the wireless network card module 3.
And a three-dimensional moon pattern is constructed inside the glass by a laser engraving technology inside the dielectric resonator, so that the antenna has a decoration function. The glass decorative antenna adopts a side-loading metamaterial unit mode, inhibits surface waves in a dielectric plate and side waves of a dielectric resonator, and improves the gain of the antenna from 5.65dBi to 8.2dBi under the condition of not sacrificing the impedance bandwidth performance of the antenna. Compared with the traditional mode that the metamaterial and the antenna cover are loaded above the antenna by changing the structure of the antenna, the design scheme provided by the invention has the characteristics of low section and high gain.
As shown in fig. 1, the camera module 1 adopts a 1/2.5 inch CMOS image sensor IMX274 manufactured by SONY corporation and is responsible for collecting 800 ten thousand pixel high-definition video images. The image sensor IMX274 has the video resolution of 3840 multiplied by 2160, the frame rate of 60FPS, can achieve starlight-level ultra-low illumination full color and has excellent dynamic performance.
The video processor module 2 shown in fig. 1 is responsible for further image preprocessing, video compression and video transmission of high-definition video images acquired by the camera module 1, and comprises a haisi embedded processor chip Hi3519, a clock circuit, a reset circuit, an RAM unit, a FLASH unit, a serial port unit and an ethernet unit. The clock circuit is responsible for providing various working running clocks for the processor chip Hi3519, and the crystal oscillator adopted by the clock circuit is 24 MHZ; the reset circuit is responsible for restoring the processor chip Hi3519 to an initial state; the RAM unit provides a temporary space required by program operation, and ensures stable operation of the system when processing a large amount of data; the Flash unit is used for storing a boot loader, an operating system and an application program in the processor chip Hi 3519; the serial port and Ethernet unit is used for realizing the functions of program debugging, root file system display, command input and program downloading in the system development stage.
The wireless network card module 3 shown in fig. 1 adopts a USB wireless network card RT3070 produced by leigh corporation to generate a wireless local area network WiFi, which is compatible with three standards of IEEE 802.11b/g/n, and the transmission speed can reach 150Mbps at most. The wireless network card module 3 adopts an external antenna and is electrically connected with the glass decorative antenna module 4 through an I-PEX connecting seat and a coaxial line.
The glass-decorated antenna module 4 shown in fig. 1 and 2 includes a dielectric resonator 11, a ground plane 13, a dielectric substrate 14, a microstrip line 15, a metamaterial unit array 16, and a slot 17. The middle of the upper surface of the dielectric substrate 14 is provided with a ground plane 13, two sides of the ground plane 13 on the upper surface of the dielectric substrate 14 are respectively distributed with a row of metamaterial unit arrays 16, the middle of the lower surface of the dielectric substrate 14 is provided with a microstrip line 15, two sides of the microstrip line 15 on the lower surface of the dielectric substrate 14 are respectively distributed with a row of metamaterial unit arrays 16, the middle of the ground plane on the dielectric substrate 14 is provided with a rectangular gap 17, a dielectric resonator 11 is arranged above the gap 17, and a three-dimensional moon surface pattern 12 is carved inside the dielectric resonator 11. The dielectric resonator 11 is made of transparent lead glass, and the dielectric constant of the lead glass is 6. The dielectric substrate 14 was made of takani RF35, and had a dielectric constant of 3.5 and a loss tangent of 0.0019. The metamaterial unit array 16 is divided into four rows, five metamaterial units are uniformly distributed on two sides of the ground plane 13 and the microstrip line 15, and the spacing distance between the metamaterial unit array 16 and the dielectric resonator 11 is less than one antenna wavelength. The distance between each unit of the metamaterial unit array 16 is 0.2-1 antenna wavelength. The loaded metamaterial unit array 16 can suppress surface waves in the dielectric substrate 14 and side waves of the dielectric resonator 11, and antenna gain is improved under the condition that impedance bandwidth and section thickness of the antenna are not influenced.
As shown in fig. 1, the monitor terminal module 5 includes wireless device terminals such as mobile phone and computer, and software APP, where the mobile phone and the computer wireless terminal can establish connection with WIFI generated by the wireless network card module 3, and the software APP can control the wireless high-definition video transmission process, and complete the functions of playing, capturing and recording video.
As shown in fig. 1, in the power module 6, 12V rechargeable lithium batteries are used to provide 12V reference dc voltage for the wireless high-definition video monitoring system, and the 12V lithium batteries are manufactured by hurricane technologies, and have a capacity of 1000 ma, and the length, width and height of the batteries are respectively 28mm, 30mm and 35mm, so that the wireless high-definition video monitoring system has the advantages of small size, large battery capacity, easy carrying and recycling. The voltage conversion chip MP1495S converts the 12V voltage into 5V and 3.3V direct current voltages; the 5V direct current voltage supplies power to the USB unit of the video processor module, and the 3.3V direct current voltage supplies power to the serial port unit and the input/output interface unit of the video processor module. The voltage conversion chip MP2162 converts the 3.3V voltage into 1.8V and 1.5V voltages; the DDR unit of the video processor module is powered by the 1.5V direct-current voltage, and the camera module is powered by the 1.8V direct-current voltage. The 0.9V direct-current voltage is converted from a 12V lithium battery through the MP2143 chip and the SVB control circuit and is used for supplying power to the Hi3519 core.
As shown in the reflection coefficient diagram of the glass decoration antenna shown in fig. 3, the impedance bandwidth of the glass decoration antenna is 2.2GHz-2.78GHz, which is the same as the impedance bandwidth of the antenna without the metamaterial unit array, which indicates that the loaded metamaterial unit array has no influence on the impedance bandwidth of the antenna.
The glass decorative antenna XOZ and YOZ gain patterns shown in fig. 4 and 5, which have simulated values consistent with measurements and a maximum gain of 8.2dBi at the center frequency, were found to be the same.
Embodiment 1 use of a Wireless high definition video monitoring System
(1) An operator firstly turns on a 12V lithium battery main switch, and then generates voltages of 5V, 3.3V, 1.8V, 1.5V and 0.9V through a power module 6 to provide required voltages for each module; (2) the video processor module 2 controls the camera module 1 to collect 800 ten thousand-pixel high-definition video; (3) firstly, the acquired high-definition video image is subjected to drying removal and H.265 hardware coding compression processing by a video processor module 2, and then network transmission is carried out in an rtsp video stream mode; (4) the wireless network card module 3 generates a local area network WIFI and sends rtsp video stream to the surrounding space in an electromagnetic wave form through the glass decorative antenna module 4; (5) the monitoring terminal module 5 is firstly connected with WIFI generated by the wireless network card module 3, after a correct WIFI password is input, software APP in the monitoring terminal is opened, a play button is clicked, and a video is played; if screenshot and video recording are needed in the playing process, clicking screenshot and video recording buttons of the software APP; (6) if repeated experiments are needed, repeating the operation steps (1) to (6); (7) and (5) ending the operation, and turning off a 12V lithium battery master switch.
Claims (4)
1. A wireless high-definition video monitoring system based on a glass decoration antenna comprises a camera module, a video processor module, a wireless network card module, a glass decoration antenna module, a monitoring terminal module and a power supply module, and is characterized in that the glass decoration antenna is a dielectric resonator antenna and comprises a dielectric resonator, a dielectric substrate, a ground plane, a metamaterial unit array, a microstrip line and a gap, wherein the ground plane (13) is arranged in the middle of the upper surface of the dielectric substrate (14), a row of metamaterial unit array is respectively distributed on two sides of the ground plane (13) on the upper surface of the dielectric substrate (14), the microstrip line (15) is arranged in the middle of the lower surface of the dielectric substrate (14), a row of metamaterial unit array (16) is respectively distributed on two sides of the microstrip line (15) on the lower surface of the dielectric substrate (14), and a rectangular gap (17) is formed in the middle of the ground plane (13) on the dielectric substrate (14, a dielectric resonator (11) is arranged above the gap (17), each row of metamaterial unit array comprises five metamaterial units, the five metamaterial units are uniformly distributed, and the spacing distance between each row of metamaterial unit array and the dielectric resonator is smaller than one antenna wavelength.
2. The wireless high-definition video monitoring system based on the glass decoration antenna is characterized in that the dielectric resonator (11) is made of lead glass with a cubic structure, and the dielectric constant of the lead glass is 6.
3. The wireless high-definition video monitoring system based on the glass decoration antenna is characterized in that the metamaterial units are rectangular patches, the material is copper, and the number of the metamaterial units is 20.
4. The wireless high-definition video monitoring system based on the glass decoration antenna is characterized in that in each column of metamaterial unit array, the distance between every two adjacent metamaterial units is 0.2-1 antenna wavelength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160978.7A CN109904616B (en) | 2019-03-04 | 2019-03-04 | Wireless high-definition video monitoring system based on glass decoration antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910160978.7A CN109904616B (en) | 2019-03-04 | 2019-03-04 | Wireless high-definition video monitoring system based on glass decoration antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109904616A CN109904616A (en) | 2019-06-18 |
| CN109904616B true CN109904616B (en) | 2020-11-10 |
Family
ID=66946293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910160978.7A Active CN109904616B (en) | 2019-03-04 | 2019-03-04 | Wireless high-definition video monitoring system based on glass decoration antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109904616B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111799549B (en) * | 2020-07-30 | 2021-12-17 | 西安电子科技大学 | Broadband super-surface antenna based on differential dielectric resonator feed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120068117A (en) * | 2010-12-17 | 2012-06-27 | 인천대학교 산학협력단 | Miniaturized uwb array antenna based on zeroth order resonance metamterial uwb power divider |
| CN103311639A (en) * | 2012-03-06 | 2013-09-18 | 香港城市大学 | Aesthetic dielectric antenna and method of discretely emitting radiation pattern using same |
| CN104269650A (en) * | 2014-09-17 | 2015-01-07 | 电子科技大学 | High-gain rectangular dielectric resonator antenna working in high-order mode |
| CN205232360U (en) * | 2015-11-26 | 2016-05-11 | 浙江工业大学 | Wireless transmission high-definition video monitoring system |
| CN208256900U (en) * | 2017-12-29 | 2018-12-18 | 深圳光启尖端技术有限责任公司 | A kind of microstrip antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI420739B (en) * | 2009-05-21 | 2013-12-21 | Ind Tech Res Inst | Radiation pattern insulator and antenna system thereof and communication device using the antenna system |
| CN106848583B (en) * | 2017-01-20 | 2019-09-27 | 哈尔滨工程大学 | A kind of three-dimensional metamaterial decoupling arrangements for micro-strip array antenna |
-
2019
- 2019-03-04 CN CN201910160978.7A patent/CN109904616B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120068117A (en) * | 2010-12-17 | 2012-06-27 | 인천대학교 산학협력단 | Miniaturized uwb array antenna based on zeroth order resonance metamterial uwb power divider |
| CN103311639A (en) * | 2012-03-06 | 2013-09-18 | 香港城市大学 | Aesthetic dielectric antenna and method of discretely emitting radiation pattern using same |
| CN104269650A (en) * | 2014-09-17 | 2015-01-07 | 电子科技大学 | High-gain rectangular dielectric resonator antenna working in high-order mode |
| CN205232360U (en) * | 2015-11-26 | 2016-05-11 | 浙江工业大学 | Wireless transmission high-definition video monitoring system |
| CN208256900U (en) * | 2017-12-29 | 2018-12-18 | 深圳光启尖端技术有限责任公司 | A kind of microstrip antenna |
Non-Patent Citations (1)
| Title |
|---|
| Superstrate embedded hybrid MHD antenna;Richa Gupta；Dr. RajveerYaduvanshi;《2015 Annual IEEE India Conference (INDICON)》;20151220;第1至5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109904616A (en) | 2019-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210270841U (en) | Display panel and terminal equipment | |
| CN102981477B (en) | Based on the refrigerator inside inspection method of multi-cam handoff technique | |
| CN208385608U (en) | Electronic equipment | |
| US20180366817A1 (en) | Electronic device comprising antenna | |
| CN208939132U (en) | Mobile terminal | |
| CN113841411A (en) | Single-pass boundary detection in video-based point cloud compression | |
| CN206388851U (en) | A kind of electronic equipment | |
| US11039115B2 (en) | Low complexity color smoothing of reconstructed point clouds | |
| CN109904616B (en) | Wireless high-definition video monitoring system based on glass decoration antenna | |
| CN109874135A (en) | Bluetooth electronic price tag and its data-updating method | |
| Veluri et al. | NeuriCam: Key-Frame Video Super-Resolution and Colorization for IoT Cameras | |
| CN203984550U (en) | A kind of control circuit of 3D camera | |
| CN109474833A (en) | A kind of method of network direct broadcasting, relevant apparatus and system | |
| CN106454279B (en) | Embedded video monitoring system | |
| Veluri et al. | Neuricam: Video super-resolution and colorization using key frames | |
| CN112040316A (en) | Video image display method, video image display device, multimedia device and storage medium | |
| CN205038502U (en) | Motor end cover generation system based on cloud platform management | |
| CN202353717U (en) | Embedded type network video monitoring system | |
| CN204810386U (en) | Terminal equipment | |
| CN203225350U (en) | Mobile terminal | |
| CN207543196U (en) | A kind of network monitoring camera head based on FPGA | |
| CN210444424U (en) | Bluetooth code scanning same-screen device | |
| CN206947531U (en) | A kind of Intelligent worn device and its antenna | |
| CN204795417U (en) | Antenna and circuit board integral structure of wireless network camera | |
| CN209089094U (en) | Wireless network camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |