CN212321849U - Mobile millimeter wave human body security inspection system - Google Patents
Mobile millimeter wave human body security inspection system Download PDFInfo
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- CN212321849U CN212321849U CN202021285507.3U CN202021285507U CN212321849U CN 212321849 U CN212321849 U CN 212321849U CN 202021285507 U CN202021285507 U CN 202021285507U CN 212321849 U CN212321849 U CN 212321849U
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Abstract
The utility model provides a human safety inspection system of portable millimeter wave, including position sensing module (1), antenna controller (3), millimeter wave antenna array (4), wireless communication module (5), ground image data processing center (6), rotor unmanned aerial vehicle (7) and nacelle (8), a serial communication port, nacelle (8) fixed mounting be in rotor unmanned aerial vehicle (7) under the organism, millimeter wave antenna array (4) be curved strip structure and fixed mounting on nacelle (8), position sensing module (1) be used for measuring rotor unmanned aerial vehicle (7) apart from ground height, apart from the distance and the relative position of safety inspection object. The utility model discloses a human safety inspection system of dynamic formula millimeter wave has the data processing center who uses unmanned aerial vehicle as portable perception module and local fixed position of carrier, can detect the security inspection object of not specific region, judges whether there is suspicious article by data processing center, provides support for taking further security policy.
Description
Technical Field
The utility model belongs to the technical field of human safety inspection equipment, concretely relates to human safety inspection system of portable millimeter wave.
Background
Nowadays, security threats such as terrorism in the world are increasing, so that the rapid and effective detection of possible dangerous goods becomes urgent. At present, the commonly used security detection means are a metal detection door and an X-ray machine, metal detectors cannot effectively detect contraband except metal, typical dangerous goods cannot be detected (ceramic tools, powder explosives, liquid explosives and gasoline, diesel and kerosene), detected dangerous goods are not detected (mobile phones, coin, keys and metal cosmetics), X-ray can cause ionizing damage to human cells due to too large photon energy, and the human harmfulness is extremely high. Currently, European and American countries are forbidden.
The millimeter wave has safety to human body because the photon energy of the millimeter wave is very small, does not cause ionization damage to human cells, and is safe to human body. Millimeter waves refer to a section of electromagnetic waves with a frequency between 1mm and 10mm, which is technically considered to be 26.50GHz-300 GHz. The millimeter wave has penetrability to nonmetal and nonpolar substances, and is very suitable for detecting human bodies and various dangerous goods hidden in the skin and clothes of the human bodies. At present, the development of millimeter wave human body security inspection systems is carried out by a plurality of enterprises, such as domestic companies like Fanwei and Huasinensing Canoe.
Millimeter wave security inspection systems in the prior art are mainly classified into two categories, one is a passive security inspection system, and the other is an active security inspection system. The passive security inspection is characterized in that: one is non-contact, does not need to search for the body, respect to the personal privacy of the person to be detected; secondly, the detection efficiency is high, the speed is high, no stay exists, the detected personnel can finish the security check after normally walking and passing through the specified security check channel, and the security check efficiency is greatly improved; and thirdly, the safety is radiation-free, the safety is similar to common cameras and monitoring cameras, electromagnetic radiation and ionizing radiation are not generated, and the safety is harmless to human bodies. The disadvantages are low resolution and low signal-to-noise ratio. The active security inspection system is used for imaging a human body by actively transmitting a certain dose of millimeter waves (within an acceptable range of dose), and compared with a passive security inspection instrument, the signal-to-noise ratio is higher. Although a certain radiation dose exists, the millimeter wave photon energy is small, so that ionizing damage to human cells can not be caused.
The existing millimeter wave human body security inspection system is all fixedly placed, a person to be detected needs to receive detection in a specific area, and the detection distance of the existing security inspection system is limited and is about 0.5 to 3 meters. In order to extend the detection distance and to enable security detection of any desired region, a new form of millimeter wave security inspection system needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable millimeter wave human safety inspection system has the portable perception module that uses unmanned aerial vehicle as the carrier and the data processing center of local fixed position, can detect the security inspection object of unspecific area, judges whether there is suspicious article by data processing center, provides support for taking further security policy.
The utility model has the specific technical proposal that the mobile millimeter wave human body security inspection system comprises a position sensing module, an antenna controller, a millimeter wave antenna array, a wireless communication module, a ground image data processing center, a rotor unmanned aerial vehicle and a pod, and is characterized in that,
the pod is fixedly arranged right below the body of the rotor unmanned aerial vehicle,
the millimeter wave antenna array is of an arc-shaped strip structure and is fixedly arranged on the nacelle, a plurality of pairs of antenna units are uniformly distributed on the millimeter wave antenna array, each antenna unit comprises a transmitting antenna and a receiving antenna,
the antenna controller is connected with the millimeter wave antenna array and is used for controlling the antenna unit of the millimeter wave antenna array to transmit or receive millimeter wave signals,
the position sensing module is used for measuring the height of the rotor unmanned aerial vehicle from the ground and the distance and the relative position of the rotor unmanned aerial vehicle from a security inspection object,
the wireless communication module is used for sending the acquired information to the ground image data processing center,
the position sensing module, the antenna controller and the wireless communication module are positioned in the nacelle.
Furthermore, the system also comprises a camera, wherein the camera is used for acquiring an optical image of a security inspection object and sending the optical image and the millimeter wave image to the ground image data processing center for comparison.
Furthermore, the working frequency range of the millimeter wave antenna array is 10GHz-50 GHz.
Furthermore, the radian of the arc of the millimeter wave antenna array is 120 degrees and 130 degrees.
Still further, the unmanned rotorcraft has a skid landing gear.
Furthermore, the rotor unmanned aerial vehicle can move up and down relative to the security check object to fly or spirally fly around the security check object, and the ground image data processing center reconstructs the plurality of imaging data acquired in the way to form three-dimensional imaging of the security check object.
Furthermore, the position sensing module, the antenna controller, the millimeter wave antenna array, the wireless communication module, the rotor unmanned aerial vehicle and the pod form a security check unit, a plurality of security check units can detect and deploy a plurality of security check objects, and the ground image data processing center performs data processing in a unified manner.
The utility model has the advantages that 1) the utility model has the movable sensing module with the unmanned aerial vehicle as the carrier and the data processing center with the local fixed position, can detect the security inspection object in an unspecified area, judges whether suspicious articles exist by the data processing center, and provides support for adopting further safety strategy; 2) an unmanned aerial vehicle is used as a carrier, so that the security inspection distance can be effectively increased by hundreds of meters; 3) the millimeter wave antenna array is of an arc-shaped strip structure, so that emitted millimeter waves can be focused on a security inspection object; 4) a high-definition camera is configured besides the millimeter wave sensor and is used for realizing comparison of an optical image and a millimeter wave image; 5) the system is provided with a position sensing module, can accurately determine the positions of the millimeter wave antenna array and a security inspection object, improves the detection precision, and can also shoot a plurality of images to form a three-dimensional image; 6) the system can be deployed by multiple machines simultaneously, and the data processing center performs data processing uniformly, so that the security inspection efficiency is improved.
Drawings
Fig. 1 is a schematic system structure diagram of the mobile millimeter wave human body security inspection system of the present invention;
fig. 2 is a schematic perspective view of the mobile millimeter wave human body security inspection system of the present invention;
position perception module 1, MCU2, antenna controller 3, millimeter wave antenna array 4, wireless communication module 5, ground image data processing center 6, rotor unmanned aerial vehicle 7, nacelle 8.
Detailed Description
The following structural description and the accompanying drawings further describe the specific technical scheme of the invention.
As shown in the attached drawing 1, the utility model discloses a portable millimeter wave human body security check system, including position perception module 1, MCU2, antenna controller 3, millimeter wave antenna array 4, wireless communication module 5, ground image data processing center 6, rotor unmanned aerial vehicle 7, nacelle 8 and camera. The MCU2 is connected to the location sensing module 1, the antenna controller 3, and the wireless communication module 5, respectively.
Rotor unmanned aerial vehicle 7 have skid-type undercarriage, the undercarriage is non-metallic material, avoids influencing the detection of millimeter wave.
The nacelle 8 is fixedly arranged right below the body of the unmanned rotorcraft 7,
the millimeter wave antenna array 4 is an arc-shaped strip-shaped structure and is fixedly installed on the nacelle 8, and the arc degree is 120 degrees and 130 degrees. A plurality of pairs of antenna units are uniformly arranged on the millimeter wave antenna array 4, and each antenna unit comprises a transmitting antenna and a receiving antenna. The working frequency range of the millimeter wave antenna array 4 is 10GHz-50 GHz.
The antenna controller 3 is connected to the millimeter wave antenna array 4, and is configured to control an antenna unit of the millimeter wave antenna array 4 to transmit or receive a millimeter wave signal.
The position perception module 1 is used for measuring the height of the rotor unmanned aerial vehicle 7 from the ground and the distance and the relative position of the rotor unmanned aerial vehicle from a security inspection object. Through ultrasonic sensor, lidar etc. and GPS, big dipper perception detection object, ground information or self gesture information installed in nacelle 8, these are all ripe prior art, do not give unnecessary details here.
The wireless communication module 5 is used for sending the acquired information to the ground image data processing center 6.
The position sensing module 1, the antenna controller 3 and the wireless communication module 5 are positioned inside the nacelle 8.
The camera is used for collecting optical images of the security inspection object and sending the optical images and millimeter wave images to the ground image data processing center 6 for comparison. The camera may be mounted on the rotorcraft 7, or on the nacelle 8.
The position sensing module 1, the antenna controller 3, the millimeter wave antenna array 4, the wireless communication module 5, the rotor unmanned aerial vehicle 7 and the nacelle 8 form a security check unit, a plurality of security check units can detect and deploy a plurality of security check objects, and the ground image data processing center 6 performs data processing uniformly.
The utility model discloses a concrete implementation process is: control rotor unmanned aerial vehicle 7 flies near the object or the people of the imminent safety inspection object, adjusts rotor unmanned aerial vehicle 7 to suitable detection distance through position perception module 1. Rotor unmanned aerial vehicle 7 can move the flight or the spiral is around the flight of security check object for the security check object, at this moment, millimeter wave antenna array 4 launches the millimeter wave in succession and receives the echo, images. The ground image data processing center 6 reconstructs the plurality of imaging data acquired in the way to form three-dimensional imaging of the security check object.
Although the present invention has been described in connection with the preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. The scope of protection of the invention should therefore be determined with reference to the claims that follow.
Claims (7)
1. A mobile millimeter wave human body security inspection system comprises a position sensing module (1), an antenna controller (3), a millimeter wave antenna array (4), a wireless communication module (5), a ground image data processing center (6), a rotor unmanned aerial vehicle (7) and a pod (8),
the nacelle (8) is fixedly arranged right below the body of the rotor unmanned aerial vehicle (7),
the millimeter wave antenna array (4) is of an arc-shaped strip structure and is fixedly arranged on the nacelle (8), a plurality of pairs of antenna units are uniformly distributed on the millimeter wave antenna array (4), the antenna units comprise transmitting antennas and receiving antennas,
the antenna controller (3) is connected with the millimeter wave antenna array (4) and is used for controlling the antenna unit of the millimeter wave antenna array (4) to transmit or receive millimeter wave signals,
the position perception module (1) is used for measuring the height of the rotor unmanned aerial vehicle (7) from the ground, the distance from the rotor unmanned aerial vehicle to a security inspection object and the relative position of the rotor unmanned aerial vehicle,
the wireless communication module (5) is used for sending the acquired information to the ground image data processing center (6),
the position sensing module (1), the antenna controller (3) and the wireless communication module (5) are positioned in the nacelle (8).
2. The mobile millimeter wave human body security inspection system according to claim 1, further comprising a camera for collecting optical images of security inspection objects, and sending the optical images and millimeter wave images to the ground image data processing center (6) for comparison.
3. The mobile millimeter wave human body security inspection system according to claim 2, wherein the operating frequency range of the millimeter wave antenna array (4) is 10GHz-50 GHz.
4. The mobile millimeter wave human body security inspection system according to claim 3, wherein the radian of the arc of the millimeter wave antenna array (4) is 120-130 degrees.
5. A mobile millimeter wave human body security inspection system according to claim 1, wherein said unmanned rotorcraft (7) has skid landing gear.
6. The mobile millimeter wave human body security inspection system according to claim 1, wherein the unmanned rotorcraft (7) can fly up and down relative to the security inspection object or spirally around the security inspection object, and the ground image data processing center (6) reconstructs a plurality of pieces of imaging data acquired in such a way to form three-dimensional imaging of the security inspection object.
7. The mobile millimeter wave human body security inspection system according to claim 1, wherein the position sensing module (1), the antenna controller (3), the millimeter wave antenna array (4), the wireless communication module (5), the rotary wing unmanned aerial vehicle (7) and the pod (8) form a security inspection unit, a plurality of security inspection units can detect and deploy a plurality of security inspection objects, and the ground image data processing center (6) performs data processing uniformly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021285507.3U CN212321849U (en) | 2020-07-03 | 2020-07-03 | Mobile millimeter wave human body security inspection system |
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| CN202021285507.3U CN212321849U (en) | 2020-07-03 | 2020-07-03 | Mobile millimeter wave human body security inspection system |
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| CN212321849U true CN212321849U (en) | 2021-01-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130167A (en) * | 2020-07-03 | 2020-12-25 | 北京中电科卫星导航系统有限公司 | Mobile millimeter wave human body security inspection system |
| CN115339631A (en) * | 2022-09-06 | 2022-11-15 | 中国人民武装警察部队特种警察学院 | A remote air-ground intelligent unmanned security inspection machine |
-
2020
- 2020-07-03 CN CN202021285507.3U patent/CN212321849U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130167A (en) * | 2020-07-03 | 2020-12-25 | 北京中电科卫星导航系统有限公司 | Mobile millimeter wave human body security inspection system |
| CN115339631A (en) * | 2022-09-06 | 2022-11-15 | 中国人民武装警察部队特种警察学院 | A remote air-ground intelligent unmanned security inspection machine |
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