阅读说明：本技术 基于毫米波雷达的网络监控系统及毫米波天线阵列结构 (Network monitoring system based on millimeter wave radar and millimeter wave antenna array structure ) 是由 史蒂文·丛 于 2020-05-22 设计创作，主要内容包括：本发明公开了一种基于毫米波雷达的网络监控系统,包括目标监测探测器,包括毫米波雷达传感器和/或视频传感器；中心控制器,与目标监测探测器连接,用于对视频信号和/或雷达信号进行融合处理或处理；视频网络传输设备,用于将中心控制器处理后的信号传输至视频显示或存储终端；视频显示或存储终端,用于显示被监测点的图像及信息。本发明有益效果是实现对特殊环境如光线不好、天气恶劣等实时跟踪监控,提高整体监控性能,并提供了一系列相关的毫米波阵列天线设计方案。(The invention discloses a network monitoring system based on a millimeter wave radar, which comprises a target monitoring detector, a target monitoring module and a target monitoring module, wherein the target monitoring detector comprises a millimeter wave radar sensor and/or a video sensor; the central controller is connected with the target monitoring detector and is used for carrying out fusion processing or processing on the video signals and/or the radar signals; the video network transmission equipment is used for transmitting the signal processed by the central controller to a video display or storage terminal; and the video display or storage terminal is used for displaying the image and the information of the monitored point. The invention has the advantages of realizing real-time tracking and monitoring on special environments such as poor light, bad weather and the like, improving the overall monitoring performance and providing a series of related millimeter wave array antenna design schemes.)

1. A network monitoring system based on millimeter wave radar is characterized by comprising:

the target monitoring detector comprises a millimeter wave radar sensor and/or a video sensor;

the central controller is mutually connected with the target monitoring detector through MIPI and CSI, is used for carrying out fusion processing or processing on the video signals and/or the radar signals and operating related algorithms;

the video network transmission equipment is used for transmitting the signal processed by the central controller to a video display or storage terminal; the video network transmission equipment adopts a local Ethernet or a wireless network or the local Ethernet and the Internet to realize signal transmission;

and the video display or storage terminal is used for displaying or storing the image and the information of the monitored point.

2. The network monitoring system of claim 1,

The target monitoring detector and the central controller are arranged in the same monitoring box body to form a centralized control mode;

the target monitoring detector and the central controller are respectively arranged in the monitoring box body and the control box body, the monitoring box body and the control box body are connected through the FPD-Link through a coaxial cable or a shielded twisted pair, and at least one monitoring box body is arranged to form a distributed control mode.

3. The network monitoring system of claim 1,

when the target monitoring detector only comprises a millimeter wave radar sensor, the millimeter wave radar sensor and the central controller are arranged in the same monitoring box body;

the number of the monitoring boxes is 1, and when the monitoring boxes are used for monitoring a single monitoring point, the video network transmission equipment is a serial data communication network or an Ethernet;

the number of the monitoring boxes is 2 or more, when the monitoring boxes are used for monitoring a plurality of monitoring points, the video network transmission equipment is a serial data communication network, and all the monitoring boxes share one serial data communication line; or the video screen network transmission equipment is Ethernet.

4. The network monitoring system of claim 1,

the millimeter wave monitor comprises a millimeter wave radar chip, a millimeter wave array antenna printed on a printed circuit board, a millimeter wave software processor, a network communication processor and a millimeter wave antenna housing.

5. The network monitoring system of claim 2,

the distributed control mode is used for monitoring a plurality of monitoring points, when the number of the monitoring points is N x M, each control box body and the N monitoring box bodies controlled by the control box body form a subnet, and the network monitoring system consists of M subnets.

6. The network monitoring system of claim 2, wherein:

the box cover of the monitoring box body is made of non-metal materials, a window is formed in the box cover, and a millimeter wave radar sensor is installed behind the window;

the shape of the window depends on the shape of the millimeter wave radar sensor antenna;

the window is of a plane type, convex type or concave type structure;

the material of the window is the same as or different from that of the box cover.

7. The network monitoring system of claim 2,

the monitoring box body is square, rectangular, triangular, trapezoidal, oval, circular and polygonal;

the monitoring box body is fixed or rotary, and the rotary type is up-down and left-right movement or rotation at different angles.

8. The network monitoring system of claim 2,

when the millimeter wave radar sensor and the video sensor are arranged in the monitoring box body, the relative positions of the millimeter wave radar sensor and the video sensor in the monitoring box body are of an upper-lower structure, a left-right structure and a diagonal structure.

9. A millimeter wave array antenna structure applicable to network monitoring system is characterized in that,

the millimeter wave radar chips are connected in parallel, and are square or rectangular;

the millimeter wave antenna array of each millimeter wave radar chip comprises a transmitting antenna array formed by two, three or four transmitting antennas and a receiving antenna array formed by four, six or eight receiving antennas; the layout of the transmitting antenna array and the receiving antenna array is 90 degrees or 180 degrees, when the layout is 90 degrees, the transmitting antenna array and the receiving antenna array are positioned on two adjacent sides of the millimeter wave radar chip, and when the layout is 180 degrees, the transmitting antenna array and the receiving antenna array are positioned on two opposite sides of the millimeter wave radar chip;

each transmitting antenna of the transmitting antenna array is formed by connecting 1-10 series-fed antennas in parallel, each series-fed antenna is provided with 3-30 conical patch antennas, and the width of each patch antenna is gradually reduced from the middle to two sides according to the Taylor or Chebyshev series rule; the distance between the transmitting antennas is Td1, and the Td1 is more than or equal to 0.5 wavelength;

each receiving antenna of the receiving antenna array is formed by connecting 1-10 series-fed antennas in parallel, each series-fed antenna is provided with 3-30 conical patch antennas, and the width of each patch antenna is gradually reduced from the middle to two sides according to the Taylor or Chebyshev series rule; the height of the receiving antenna positioned at the central part in the receiving antenna array is 0.5-3 wavelengths lower than that of other receiving antennas; the distance Rd between the plurality of receiving antenna arrays is more than or equal to 0.5 wavelength; the patch antennas at the top of each of the receive and transmit antennas may be formed with impedance matching slots.

10. The millimeter-wave antenna array structure of claim 9,

the radio-frequency signal is transmitted by the transmitting antenna array after passing through the radio-frequency signal output end of the millimeter wave radar chip, the radio-frequency output transmission line and the power divider;

the radio frequency signal is received by the receiving antenna array, the radio frequency input transmission line and the power divider and enters the radio frequency signal input end;

the radio frequency input transmission line is a microstrip transmission line or a GCPW transmission line; the power divider is a T-shaped power divider or a Wilkinson power divider.

Technical Field

The invention relates to the technical field of monitoring places, in particular to a network monitoring system combining a millimeter wave radar and a video and a related millimeter wave array antenna design scheme.

Background

The monitoring systems currently in wide use or related to the disclosed technology can be divided into two categories:

One is a video monitoring system, which is characterized in that the monitoring effect is very easily influenced by weather and light, the detection distance is limited, the information such as the speed, the distance and the like of a monitored target cannot be tracked in real time, but the video monitoring has extremely high image resolution.

The other kind is a monitoring system combining radar and video, but a front-end sensor fusion technology is not adopted, fusion signal processing is not carried out on a detection result of a radar sensor and a video signal shot by a video sensor at the front end, namely, the detection result of a millimeter wave radar sensor and the video signal shot by the video sensor are not carried out on fusion signal processing at output ports of the two sensors, but the two detection signals are respectively transmitted to a display terminal with a longer distance for processing and displaying, because the output specifications of the millimeter wave radar sensor and the video sensor are different, the synchronization of the two signals is difficult to keep in the transmission process, as a result, the real-time movement speed of a moving object cannot track the object, even if tracking display exists, the real-time movement speed of the moving object is the result of processing through background software, because the two signals are not synchronous, the accuracy of the method is questionable, and as a result, the real-time moving speed of the moving object cannot track the moving object, the video image and the radar sensor detection image can only be respectively displayed on the screen, the parameters such as the real-time moving speed of the moving object can only be displayed by a list, and the screen display effect is as shown in fig. 1. As a result, real tracking of moving objects on the screen is not possible. Another very important drawback is that the design of the millimeter wave radar sensor array antenna, which is a core component of the monitoring system, is not described in detail; accordingly, the invention is particularly directed to.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a network monitoring system based on a millimeter wave radar, which realizes real-time tracking and monitoring on special environments such as poor light, bad weather and the like and improves the overall monitoring performance; the structural design of the millimeter wave radar sensor antenna array disclosed by the patent can be used for monitoring the environment and can be widely applied to other fields such as automatic driving automobiles, high-speed rails, subways, liquid level detection, human body sign detection, industrial automatic monitoring and the like.

The network monitoring system provided by the invention comprises:

the target monitoring detector comprises a millimeter wave radar sensor and/or a video sensor;

the central controller is mutually connected with the target monitoring detector through MIPI and CSI, is used for carrying out fusion processing or processing on the video signals and/or the radar signals and operating related algorithms;

the video network transmission equipment is used for transmitting the signal processed by the central controller to a video display or storage terminal; the video network transmission equipment adopts a local Ethernet or a wireless network or the local Ethernet and the Internet to realize signal transmission;

And the video display or storage terminal is used for displaying the image and the information of the monitored point.

Further, the air conditioner is provided with a fan,

the target monitoring detector and the central controller are arranged in the same monitoring box body to form a centralized control mode;

the target monitoring detector and the central controller are respectively arranged in the monitoring box body and the control box body, the monitoring box body and the control box body are connected through the FPD-Link through a coaxial cable or a shielded twisted pair, and at least one monitoring box body is arranged to form a distributed control mode.

Further, the air conditioner is provided with a fan,

when the target monitoring detector only comprises a millimeter wave radar sensor, the millimeter wave radar sensor and the central controller are arranged in the same monitoring box body;

the number of the monitoring boxes is 1, and when the monitoring boxes are used for monitoring a single monitoring point, the video network transmission equipment is a serial data communication network or an Ethernet;

the number of the monitoring boxes is 2 or more, when the monitoring boxes are used for monitoring a plurality of monitoring points, the video network transmission equipment is a serial data communication network, and all the monitoring boxes share one serial data communication line; or the video screen network transmission equipment is Ethernet.

Further, the air conditioner is provided with a fan,

the millimeter wave monitor comprises a millimeter wave radar chip, a millimeter wave antenna array printed on a printed circuit board, a millimeter wave software processor, a network communication processor and a millimeter wave antenna housing.

Further, the air conditioner is provided with a fan,

the distributed control mode is used for monitoring a plurality of monitoring points, when the number of the monitoring points is N x M, each control box body and the N monitoring box bodies controlled by the control box body form a subnet, and the network monitoring system consists of M subnets.

Further, the air conditioner is provided with a fan,

the box cover of the monitoring box body is made of nonmetal materials, the box body can be made of metal or nonmetal materials, a window is formed in the box cover of the monitoring box body, and a millimeter wave radar sensor is installed behind the window;

the shape of the window depends on the shape of the millimeter wave radar sensor antenna;

the window is of a plane type, convex type or concave type structure;

the material of the window is the same as or different from that of the box cover.

Further, the air conditioner is provided with a fan,

the monitoring box body is square, rectangular, triangular, trapezoidal, oval, circular and polygonal;

the monitoring box body is fixed or rotary, and the rotary type is up-down and left-right movement or rotation at different angles.

Further, the air conditioner is provided with a fan,

when the millimeter wave radar sensor and the video sensor are arranged in the monitoring box body, the relative positions of the millimeter wave radar sensor and the video sensor in the monitoring box body are of an upper-lower structure, a left-right structure and a diagonal structure.

In addition, the structure of the millimeter wave radar sensor antenna array is specifically as follows: the millimeter wave radar chips are connected in parallel, and are square or rectangular;

The millimeter wave antenna array of each millimeter wave radar chip comprises a transmitting antenna array formed by two, three or four transmitting antenna channels and a receiving antenna array formed by four, six or eight receiving antenna channels; the layout of the transmitting antenna array and the receiving antenna array is 90 degrees or 180 degrees, when the layout is 90 degrees, the transmitting antenna array and the receiving antenna array are positioned on two adjacent sides of the millimeter wave radar chip, and when the layout is 180 degrees, the transmitting antenna array and the receiving antenna array are positioned on two opposite sides of the millimeter wave radar chip;

each transmitting antenna of the transmitting antenna array is formed by connecting 1-10 series-fed antennas in parallel, each series-fed antenna is provided with 3-30 (Remove conical) patch antennas, and the widths of all the patch antennas can be the same or gradually reduced from the middle to two sides according to the Taylor or Chebyshev series rule; the distance between the transmitting antennas is Td1, and the Td1 is more than or equal to 0.5 wavelength; each receiving antenna of the receiving antenna array is formed by connecting 1-10 series-fed antennas in parallel, each series-fed antenna is provided with 3-30 (Remove conical) patch antennas, and the width of each patch antenna is gradually reduced from the middle to two sides according to the Taylor or Chebyshev series rule; the height of the receiving antenna positioned at the central part in the receiving antenna array is 0.5-3 wavelengths lower than that of other receiving antennas; the distance Rd between the plurality of receiving antenna arrays is more than or equal to 0.5 wavelength; the patch antennas at the top of each of the receive and transmit antennas may be formed with impedance matching slots.

Further, the air conditioner is provided with a fan,

the radio-frequency signal is transmitted by the transmitting antenna array after passing through the radio-frequency signal output end of the millimeter wave radar chip, the radio-frequency output transmission line and the power divider;

the radio frequency signal is received by the receiving antenna array, the radio frequency input transmission line and the power divider and enters the radio frequency signal input end;

the radio frequency input transmission line is a microstrip transmission line or a GCPW transmission line; the power divider is a T-shaped power divider or a Wilkinson power divider.

The invention has the beneficial effects that:

(1) the millimeter wave radar and the video signal are combined into one, so that the respective advantages of the video and the radar signal are fully exerted, and a picture is generated, so that the image information of a plurality of objects in the tracked scene, such as the number of a license plate, the shape of a vehicle body and the position of the vehicle, can be recorded in real time in the picture; the transmission and display are carried out, and the real-time tracking of the moving object is realized; but also can display a plurality of objects on the video image, such as the moving speed, the relative position and other parameters of people or vehicles;

(2) the millimeter wave radar sensor can be used as the only monitor to form a millimeter wave radar sensor monitoring network independently, so that the real-time tracking and monitoring of special environments such as poor light, bad weather and the like are realized;

(3) Due to the structural design of the millimeter wave radar sensor antenna array, the whole monitoring system has the advantages of both the millimeter wave radar monitoring system and the video monitoring system, and the whole monitoring performance is improved.

Drawings

FIG. 1 is a diagram illustrating a monitoring display effect in the prior art;

FIG. 2 is a diagram of the monitoring display effect of the present invention;

FIG. 3 is a block diagram of an embodiment of the present invention;

FIG. 4 is a block diagram of an embodiment of the present invention;

FIG. 5 is a block diagram of an embodiment of the present invention;

FIG. 6 is a block diagram of an embodiment of the present invention;

FIG. 7 is a block diagram of an embodiment of the present invention;

FIG. 8 is a block diagram of an embodiment of the present invention;

FIG. 9 is a diagram of a second embodiment of the present invention;

FIG. 10 is a diagram of the structure of the second embodiment of the present invention;

FIG. 11 is a block diagram of a second embodiment of the present invention;

FIG. 12 is a block diagram of a second embodiment of the present invention;

FIG. 13 is a diagram of a second embodiment of the present invention;

FIG. 14 is a diagram of a second embodiment of the present invention;

FIG. 15 is a diagram of the structure of the second embodiment of the present invention;

FIG. 16 is a diagram of the structure of the second embodiment of the present invention;

FIG. 17 is a diagram of a second embodiment of the present invention;

FIG. 18 is a diagram of a second embodiment of the present invention;

FIG. 19 is a diagram of a second embodiment of the present invention;

FIG. 20 is a three-junction diagram of an embodiment of the present invention;

FIG. 21 is a three-junction diagram of an embodiment of the present invention;

FIG. 22 is a three-junction diagram of an embodiment of the present invention;

FIG. 23 is a three-junction diagram of an embodiment of the present invention;

FIG. 24 is a three-junction diagram of an embodiment of the present invention;

FIG. 25 is a diagram of a third structure in accordance with an embodiment of the present invention;

FIG. 26 is a diagram of the structure of the fourth embodiment of the present invention;

FIG. 27 is a diagram of a fourth embodiment of the present invention.

FIG. 28 is a diagram of the structure of the fourth embodiment of the present invention;

FIG. 29 is a diagram of the structure of the fourth embodiment of the present invention

FIG. 30 is a diagram of the structure of the fourth embodiment of the present invention;

FIG. 31 is a diagram of the structure of the fourth embodiment of the present invention;

FIG. 32 is a diagram of a fourth embodiment of the present invention;

FIG. 33 is a diagram of the structure of the fourth embodiment of the present invention;

fig. 34-62 are schematic diagrams of a fifth millimeter wave antenna array according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application.