CN108370091A - Antenna and anticollision detecting system including this antenna - Google Patents
Antenna and anticollision detecting system including this antenna Download PDFInfo
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- CN108370091A CN108370091A CN201680073693.4A CN201680073693A CN108370091A CN 108370091 A CN108370091 A CN 108370091A CN 201680073693 A CN201680073693 A CN 201680073693A CN 108370091 A CN108370091 A CN 108370091A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1408—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic by monitoring network traffic
- H04L63/1416—Event detection, e.g. attack signature detection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/55—Detecting local intrusion or implementing counter-measures
- G06F21/554—Detecting local intrusion or implementing counter-measures involving event detection and direct action
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/55—Detecting local intrusion or implementing counter-measures
- G06F21/56—Computer malware detection or handling, e.g. anti-virus arrangements
- G06F21/562—Static detection
- G06F21/564—Static detection by virus signature recognition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
- H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/14—Network architectures or network communication protocols for network security for detecting or protecting against malicious traffic
- H04L63/1441—Countermeasures against malicious traffic
- H04L63/1483—Countermeasures against malicious traffic service impersonation, e.g. phishing, pharming or web spoofing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/16—Implementing security features at a particular protocol layer
- H04L63/168—Implementing security features at a particular protocol layer above the transport layer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2119—Authenticating web pages, e.g. with suspicious links
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Software Systems (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Virology (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Health & Medical Sciences (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The present invention relates to a kind of directional aerial for rf wave, the directional aerial includes：So-called orientation source antenna (4), the orientation source antenna significantly more emit radio-frequency radiation in a given direction；And shell (3), the shell includes the base portion (3a) for connecting the face (3b) laterally arranged relative to the assigned direction, these faces are also referred to as lateral face (3b), the source antenna (4) is placed on the inside of the shell (3), it is characterized in that, the transverse direction face (3b) includes the first absorbing material (5a), and first absorbing material absorbs lateral radio-frequency radiation and includes the first metal layer (6a) and second metal layer (6b) of the either side for being placed on first absorbing material (5a).
Description
Goal of the invention
The present invention relates to anticollision detection fields.More particularly it relates to a kind of antenna, the antenna, which is worked as, to be coupled to
The marked region being adapted to as needed is defined when RF detection module.The invention further relates to the anticollision inspections including this antenna
Examining system.
Background technology
Collision between engine, between engine and people or even between engine and fixed structure in order to prevent, it is known that
Way is to provide anticollision detecting system to engine.In the presence of several technology (radar, the radio that can be used for ensuring the detection
Wave, camera etc.).Many technologies (ultrasound, optics etc.) are not in all climatic environments (in night, strong brightness, rainy day, snow
It etc.) and the hard situation (dust, soil etc.) that encounters on building sites etc. under be all reliable.
Detection solution based on the detection carried out by rf wave (RF) is very effective but lacks accuracy, and
And presence may also can be marked when even if there be no risk of collision.Therefore, too many false alarm is generated.
For improve accuracy, exist be named as orientation radiate non-uniform antenna on 3 axis X, Y and Z.Therefore,
Detecting system in document WO 2004/090830, US 2008/0018472 and US 2011/0227748 is referred to orientation day
The purposes of line or the antenna configured with the special metal for making it possible to forming detection zone form.
In so-called directional aerial, directionality is only local, radiates still 360 degree presence, is such as shown in Fig. 1 by solid line
Go out.The antenna is considered as orientation, because compared with the every other point of transmitting circle, signal is in particular directions by more
It pushes by force.In fact, the only radiation with different power on these three axis of this antenna.These antenna is only partly fixed
To.As explained above in relation to safety label or for the detection of the traffic, target etc. (it acts field must be accurate)
, it is necessary to periodically promote the enhancing accuracy of the directionality of RF transmittings.
Goal of the invention
The present invention is directed to develop a kind of antenna for allowing to generate the wave beam that enhancing directionality is presented.Therefore, of the invention
Be intended to develop a kind of antenna, the antenna allow to obtain be directed toward the signal of precision target, be intended to limitation it is expected directionality it
Any radiation of outer maximum (specifically, limiting lateral radiation) and elimination and the radiation in the target opposite direction.Cause
This, the wave beam generated has variable-width as needed, and can be reduced to almost completely oriented straight line RF wave beams,
Just as laser beam.
The present invention also aims to a kind of miniature antenna of exploitation, to allow it to be incorporated into any equipment.
The main characteristic feature of the present invention
The present invention relates to a kind of directional aerial for rf wave, the directional aerial includes：
So-called directive feed antenna, the directive feed antenna emit stronger radio-frequency radiation in given directions,
Involucrum, the involucrum include the face for linking face laterally arranged relative to the assigned direction, also referred to as lateral
Base portion, the feed antennas is arranged in the involucrum, which is characterized in that the transverse direction face includes the first material, described
First material absorbs the lateral radio-frequency radiation and includes the first metal of the either side for being arranged in first absorbing material
Layer and second metal layer.
According to a particular embodiment of the invention, the directional aerial has at least one of following characteristics or appropriate group
It closes：
The first metal layer and/or the second metal layer are shelved on the ground plane of PCB；
The antenna includes the support element for the paraboloid form for partly covering sheet metal in the involucrum, described
Feed antennas is arranged in the space defined by the paraboloid form and is directed towards the paraboloid form
Center emits the stronger radio-frequency radiation；
The support element includes the surface for being covered with the second material for absorbing the radio-frequency radiation, and the surface is arranged
For the size being essentially equal towards the feed antennas and with the size with the surface of the feed antennas；
Second absorbing material is interrupted by the reflector of the radio-frequency radiation at its center；
The feed antennas includes absorbing the radio-frequency radiation on its surface opposite with the face towards the support element
Third material；
The feed antennas is arranged on the flat support part formed by the base portion of the involucrum, the feed
Antenna emits radio-frequency radiation on the assigned direction opposite with the flat support part；
The flat support part is formed by the ground plane of the PCB；
The lateral face of the involucrum is absorbed the of the radio-frequency radiation in its free end in the involucrum
Four materials cover；
4th absorbing material is arranged in the form of the annular for the support element for being attached to paraboloid form；
First absorbing material and be arranged at first absorbing material either side the first metal layer
Extend through the base portion with the second metal layer；
The antenna is occupied less than 100cm3Volume；
The antenna includes being provided with by the shell of the closed involucrum of cover piece；
First and second metal layer extends to the lid on all surface of the transverse wall of the involucrum
Part；
The second metal layer is formed by the wall of the shell；
The cover piece includes the support element for the feed antennas and the third absorbing material；
The feed antennas is ceramic antenna or the track on printed circuit；
The antenna includes radio-frequency module；
The annular includes the opening for allowing radio-frequency cable to lead to from the feed antennas radio-frequency module.
The invention further relates to a kind of anticollision detecting systems including antenna described above.
Description of the drawings
Fig. 1 shows on plane XZ and YZ according to the radiation mode of the directional aerial of of the invention (dotted line) with according to this field
The radiation mode of the directional aerial of (solid line) compares.
Fig. 2 is the 3-D view of the shell according to the present invention for forming directional aerial.
The difference that Fig. 3 (a), Fig. 3 (b), Fig. 3 (c) schematically illustrate antenna according to the present invention in cross-section is matched
It sets, wherein path is covered by the radiation in the antenna.For the sake of clarity, antenna is illustrated only in Fig. 3 (a), Fig. 3 (b)
A part path, similar path is significantly covered by the other side of the symmetry axis of antenna.For each configuration, table is gone back
Generated marked region is shown.
Fig. 4 indicates the 3-D view of a part for antenna according to the present invention.In order to see the annular of absorbing material, do not show
Go out outer metal layer and shows partially just inner metal layer.In this figure, with reality on the contrary, the antenna is not in day
Extend in the entire height of line.
Fig. 5 indicates the 3-D view of the cover piece of the shell of antenna according to the present invention.The attached drawing is illustrated in greater detail
Support element for feed antennas.
Keyword
(1) shell
(2) cover piece
(3) involucrum
(3a) base portion
(3b) transverse direction face
(4) feed antennas
(5) RF absorbing materials
(5a) laterally and possibly on the base portion of shell, to absorb RF waves
(5b) is in the output of involucrum to limit refraction
(5c) is on central block
(5d) is at the rear portion of antenna
(6) metal layer
(6a) turns to the inside of shell
(6b) turns to the outside of shell
(7) PCB (printed circuit board)
(7a) ground plane
(8) RF modules
(9) support element
(10) sheet metal
(11) central block
(12) reflection cone, also referred to as reflector
(13) it is open
(14) support element in cover piece
(15) PCB of feed antennas serves as the mechanical support of the feed antennas
(16) connector of antenna
Specific implementation mode
Antenna according to the present invention is designed to miniature, and can be incorporated into notable dimension constraint and need
In any electronic equipment of firing altitude directional radio signals.In general, the depth dimensions of antenna according to the present invention are 60mm*
60mm*20mm or even smaller, that is, to be less than 100cm3Volume and this antenna preferably by 24GHz to 60GHz's
Microwave band.
Fig. 1 illustrate antenna with local orientation's property known to this field (solid line) with it is according to the present invention, present
The antenna for the almost completely oriented property that can change between narrow beam (dotted line at center) and broad beam (outer dashed line)
Between difference.
Different configurations that Fig. 3 schematically illustrates antenna according to the present invention, allowing to adjusting beam angle.Point
Not in the configuration of Fig. 3 (a) 1 and the configuration of Fig. 3 (b) 2, in the case of the configuration of Fig. 3 (b), wave beam is relatively narrow and with longer
The marked region of range.In such arrangements, feed antennas is arranged in the seat of paraboloidal mirror and is sent out towards the minute surface
Penetrate radiation.In the configuration of Fig. 3 (c), wave beam is wider, or even almost rectangle.In this configuration, feed antennas is arranged
Emit electromagnetic radiation on flat support part and on the direction opposite with the flat support part.
For all configurations, the component for forming directional aerial according to the present invention includes：Shell 1 is provided with closing involucrum
3, the cover piece 2 being incorporated in the enclosure interior volume；Feed antennas 4 emits electromagnetic radiation, also referred to as transmitting antenna；And
PCB 7, including RF modules 8 (referring to Fig. 2 and Fig. 3).The feed antennas is considered as orientation, because it is in one direction
Preferential emission, though its directionality for be only according to the antenna of this field it is local, as illustrated in fig. 1.The feed
Antenna can be ceramic antenna (ceramic paster antenna).It can also be provided on the specified point for directionality it is polarized
Track on PCB.
In the example shown in figure 3, involucrum 3 defines the profile of the rectangular parallelepiped protrusion part with base portion 3a, described
It is by 2 closed transverse direction face 3b of cover piece at the top of base portion.The cover piece is made from a material that be electrically non-conductive, for example, by plastic material.Root
According to the present invention, involucrum 3, which forms, inhales wave darkroom, enables to the harmful reflections of limitation enclosure interior and limits outside darkroom
Electromagnetic flux range.For this purpose, the involucrum is formed by the material 5a of absorption of electromagnetic radiation.This material is for example by having
The silicones of cavity is made of the nitrile with cavity.The material at least laterally arranged relative to feed antennas 4 with
Just absorb transverse direction RF waves and thereby, it is ensured that RF wave beams directionality.In other words, absorbing material 5a is arranged at the transverse direction of involucrum 3
On the 3b of face.Absorbing material 5a be diverted the inside of involucrum, the also referred to as the first metal layer 6a of internal layer and turn to involucrum
External, also referred to as outer layer second metal layer 6b is bracketed.Each metal layer (for example, being made of copper) is formed just as absorbing
Material 5a extends to the wall of cover piece 2 like that, wherein at least one layer in the two layers is carried on the base portion 3a for being arranged at involucrum
On the ground plane 7a of the PCB 7 at place.First layer 6a is isolated in a manner of identical with faraday cup, and second layer 6b is for example logical
It crosses absorption reverberation, vibration etc. and reduces any radiation emitted by first layer.This two layers so that may be included in flow
In limited air gap between the surface and ground plane of transmitting antenna, this greatly limits the subsequent radiation scopes of antenna.
Minimum space needed between this two layers is 0.5mm.In the configuration for the wall that the outer layer of Fig. 3 is different from shell, outer layer 6b carryings
On the ground plane 7a of PCB 7.It is also contemplated that being formed with the wall by the shell when the wall of shell is metal outer
Layer 6b.In such a case it is necessary to discriminatively arrange PCB.Then, by the outer layer be located in base portion 3a the other side,
It later will be between the support element of discussion 9 and internal layer 6a, wherein in this case, the internal layer is carried on the ground plane of PCB
On.
In order to be limited in the metal corner of first layer 6a until the refraction of the radiation on cover piece 2 and therefore include antenna
Range, absorbing material 5b is arranged at this point, and it may be advantageous.This absorbing material 5b is using the one end for being arranged in involucrum
Form on the first metal layer 6a of the involucrum with the band of the junction point of cover piece.
In order to adjust the width and range of wave beam, configuration 1 to 3 has different details.Respectively in 1 He of the configuration of Fig. 3 (a)
In the configuration 2 of Fig. 3 (b), the component is included in the non-conductive support part 9 of the paraboloid form inside involucrum 3, wherein feed
Antenna 4 is located in the space defined by the paraboloid form.This antenna serves as the transmitter of focal point.Therefore, of the invention
It is intended to by using the inverse track of the signal receiving antenna usually using paraboloid form include to come to be designed with form of beams
The radiation of the antenna of component (therefore with very small size) on PCB.The position of focus is the final component of antenna
One of the key element of size.In order to reduce and restore a part for lateral radiation, that is to say, that with expectation set Cheng Zhi
Angle is so that with ceiling capacity but also with directionality, transmitting antenna 4 must be positioned as close to paraboloid seat, it would be desirable to
It is completely contained in the volume of paraboloid seat.
Paraboloid support element is partly covered by foil 10 (for example, being made of copper), is ensured that and is carried out self feeding
The reflection of the radiation of antenna.The sheet metal for example can be pressed onto support element by using the tool for filling counterpart when formed
Above formed.The sheet metal is adhered in a part for the parabolic surface of plastic supporting pieces.It is wireless in order to avoid that will destroy
The resonance effects (central part of paraboloid component undergoes covibration) of electric signal, paraboloidal center is non-reflective.Cause
This, central block 11 passes through support element 9 to be formed without copper area at center.The central block substantially has the feed with relative positioning
The identical size of antenna, and covered by being arranged in the absorbing material 5c at paraboloid center towards antenna 4.In order to compensate for coke
The loss of emitted energy at dot center is added in configuration 2 at paraboloidal center being made of copper, formation cone optional
Reflector 12, to carry out parallelization to the radiation from paraboloidal center to end.
The radiation in the face behind from focusing anteena must be also eliminated, because emitted signal will not be advanced and be thrown
Therefore the identical distance of distance of object plane reflection simultaneously leads to obscuring for signal so as to cause the phase shift of signal content.In order to make up
This disadvantage, RF absorbing materials 5d are arranged at behind antenna 4.
As already mentioned, must also stop from paraboloidal over-the-counter lateral radiation, to ensure the complete of component directionality
Whole property.Therefore, absorbing material 5a and metal layer 6a and 6b are arranged on all periphery 3a, 3b of involucrum 3, in this example shape
At U-shaped section.Similarly, in order to limit refraction of the involucrum at the open end on the turning of the first metal layer 6a, absorbing material
Band 5b be arranged between support element 9 and the cover piece 2 of paraboloidal output with ring form.Preferably, this annular
It is arranged to laterally towards absorbing material 5d.Visible this annular 5b may include opening 13 in Fig. 4, to allow RF electric
Cable leads to the connector (not shown) of PCB so that it is guaranteed that 50 ohm of standard hinders from the connector 16 of visible antenna in Figure 5
It is anti-.
In order to support antenna 4 and be arranged absorbing material 5d behind, cover piece 2 can use visible in Figure 5
Support element 14 moulds.According to the present invention, antenna 4 may be mounted on the PCB 15 different from including the PCB 7 of RF modules.This
Kind PCB 15 itself acts as the mechanical support being carried on the inner wall of support element 14, as shown in fig. 5.Antenna 4 is installed
In the side of PCB 15, and absorbing material 5d is mounted on the other side of PCB 15.
Without using the throwing for allowing to obtain more rectangles as shown in Fig. 3 (c) and the RF of configurable form labels
In the case of object plane part, above-mentioned shielding and insulating method can be applied to identical feed antennas (as an example, ceramic antenna
Or the like).
In configuration 3, feed antennas 4 is shelved on the flat support part as the base portion 3a of involucrum 3.The feed antennas
It is carried on the ground plane 7a of more PCB 7 bigger than antenna.Feed antennas is in the phase negative side relative to configuration 1 and configuration 2
Emitted upwards.The component still includes the suction bracketed by first layer 6a and second layer 6b on the lateral face 3b of involucrum 3
Receive material 5a, wherein internal layer 6a is shelved on the ground plane 7a of PCB.It is also contemplated that with the ground connection for being equally shelved on PCB
Outer layer 6b on plane 7a.The component can be optionally included in the band 5b of the absorbing material of the output of involucrum.It takes
Certainly in desired aperture angle, absorbing strip band 5b is needed or needed not exist for.If seeking broader wave beam, item is not present
Band.
In short, by means of the present invention be possible to according to the operation mode of barrier, engine type, engine speed, engine come
Adjust specific scanning area.The configuration 1 of Fig. 3 (a) and the configuration 2 of Fig. 3 (b) are preferably used in and narrow region are marked, and such as exist
In the case of tray carriage, and the configuration of Fig. 3 (c) is preferably used in equipped with large-scale engine, truck, building machinery, drilling machine etc..This
Outside, each is configured, it is also possible to change the visual angle of wave beam by acting on the geometry in component.For example, having
It, can be with adjustable visual angle by changing position of the transmitting antenna relative to involucrum in the case of having paraboloid configuration.Similarly, exist
The surface for changing ground plane in the case of transmitting antenna using PCB upper rail trace forms or even ground plane and antenna rail
The distance between mark changes the ratio between the geometry in the regions RF and the range of wave beam and its width.This needs is directed to
Maximally related form is taken in each application.
Antenna module according to the present invention with RF modules can be incorporated in anticollision detecting system, the anticollision inspection
Examining system includes other following detection devices such as camera and one or more detection parts：
ο personnel detect
ο vehicle launch signals
ο reverse signals
ο operation signals
ο motion sensors
ο velocity sensors
ο inclination sensors
ο temperature sensors
ο and other sensors or signal appropriate.
In addition, the detecting system may include power module and the processor using the information from all parts.Root
According to the present invention, forming all elements of the detecting system can be incorporated in the same shell.
Therefore, detecting system according to the present invention in view of specific real hazard region and include allow to it is best
Ground is directed to risk of collision and therefore limits one group of detection part of false alarm.
By supplement, the RF modules for being coupled to antenna are also used as fixed range radar.In fact, the detection system
System can detect and both the machine or structure without beacon or without any signal (between the machine outside crane and scene,
Between the container and structure of ship, between tray carriage and storage organization, between crane load and building and other structures
Deng) risk that collides.Again, it limits false alarm and is therefore connect in detection quite close to barrier but when not being to be too close to
Recency is necessary.Because the light velocity is too far, again too close for conventional radar by incuding detection, therefore will need mysterious
The processor of speed (and mysterious expensive and big) tries to calculate flight time of the EM waves on only several meters.Cause
This, antenna according to the present invention also has the radar option for this distance.Because the antenna with its RF module is with
The limited range known and can configure, so it provides following radar function.Second antenna as described above used and
Serve as receiver, because the distance is too close to for individual antenna and can not from transmitting at a good pace switch to intercept with
Capture reflection.The second antenna holding of RF modules with their own is intercepted, and close to the reflection for getting received signal
When, processor is therefrom inferred to the barrier at a certain distance from existing between zero and the accurately known range of antenna.Know
The exact distance in road is unessential, it is important to detect to the minimum range of triggering risk of collision alarm, this radar mockup
It is made very good on fixed range.However, it may be necessary to which the two antennas are isolated to avoid making reception antenna mistakenly capture
The internal emission of spontaneous emission antenna.
In order to complete this point, specified RF modules and antenna are formed into tagging system, it is described although this is not required
Tagging system can be communicated with the beacon that can correspondingly take action to alert the personnel for carrying hazard beacon.As showing
Example, the beacon can be incorporated in wrist-watch, and be vibrated when having been detected by marked region.
Advantage
The invention enables can obtain the signal for being directed toward precision target to limit any spoke of maximum except desired directionality
It penetrates, while very small so that it can be incorporated in all applications in the space for requiring to reduce.
The shell is not only the support element of antenna, and forms the integral part of antenna.The shell is inhaled by serving as
Wave darkroom and play positive effect.
Claims (20)
1. a kind of directional aerial for rf wave, the directional aerial include：
So-called directive feed antenna (4), the directive feed antenna emit stronger radio-frequency radiation in given directions,
Involucrum (3), the involucrum include linking face (3b) laterally arranged relative to the assigned direction, also referred to as lateral
Face (3b) base portion (3a), the feed antennas (4) is arranged in the involucrum (3), which is characterized in that the transverse direction face
(3b) includes the first material (5a), and first material absorbs the lateral radio-frequency radiation and includes being arranged in described first to inhale
Receive the first metal layer (6a) and second metal layer (6b) of the either side of material (5a).
2. antenna as described in claim 1, which is characterized in that the first metal layer (6a) and/or the second metal layer
(6b) is shelved on the ground plane (7a) of (7) PCB.
3. antenna as claimed in claim 1 or 2, which is characterized in that the antenna includes partly covering in the involucrum (3)
It is stamped the support element (9) of the paraboloid form of sheet metal (10), the feed antennas (4) is arranged at by the paraboloid form
In the space defined and it is directed towards the center of the paraboloid form and emits the stronger radio-frequency radiation.
4. antenna as claimed in claim 3, which is characterized in that the support element (9) includes being covered with to absorb the radio frequency spoke
The surface for the second material (5c) penetrated, the surface are arranged to towards the feed antennas (4) and have and the feed
The size that the size on the surface of antenna (4) is essentially equal.
5. antenna as claimed in claim 4, which is characterized in that second absorbing material (5c) is penetrated by described at its center
The reflector (12) of radio-frequency radiation interrupts.
6. the antenna as described in any one of claim 3 to 5, which is characterized in that the feed antennas (4) its with towards institute
State on the opposite face in face of support element (9) includes the third material (5d) for absorbing the radio-frequency radiation.
7. antenna as claimed in claim 1 or 2, which is characterized in that the feed antennas (4) is arranged at by the involucrum
(3) on the flat support part that the base portion (3a) is formed, the feed antennas (4) with the flat support part is opposite gives
Determine to emit radio-frequency radiation on direction.
8. antenna as claimed in claim 7, which is characterized in that the flat support part includes the ground connection of the PCB (7)
Plane (7a).
9. antenna as described in any one of the preceding claims, which is characterized in that the lateral face (3b) of the involucrum (3)
It is absorbed the 4th material (5b) covering of the radio-frequency radiation in its free end in the involucrum (3).
10. antenna as claimed in claim 9, which is characterized in that the 4th absorbing material (5b) uses and is attached to paraboloid
The form of the annular of the support element (9) of form is arranged.
11. such as antenna according to any one of claims 1 to 6, which is characterized in that first absorbing material (5a) and by
The first metal layer (6a) and the second metal layer (6b) for being arranged in the either side of first absorbing material (5a) pass through
It wears the base portion (3a) and extends.
12. antenna as described in any one of the preceding claims, which is characterized in that the antenna is occupied less than 100cm3Body
Product.
13. antenna as described in any one of the preceding claims, which is characterized in that the antenna includes being provided with by cover piece
(2) shell (1) of the closed involucrum (3).
14. antenna as claimed in claim 13, which is characterized in that the first metal layer (6a) and the second metal layer
(6b) extends to the cover piece (2) on all surface of the transverse wall (3b) of the involucrum (3).
15. antenna according to claim 13 or 14, which is characterized in that the second metal layer (6b) is by the shell
(1) what wall was formed.
16. the antenna as described in any one of claim 13 to 15, which is characterized in that the cover piece (2) includes for described
The support element (14) of feed antennas (4) and the third absorbing material (5d).
17. antenna as described in any one of the preceding claims, which is characterized in that the feed antennas (4) is ceramic antenna
Or the track on printed circuit.
18. antenna as described in any one of the preceding claims, which is characterized in that the antenna includes radio-frequency module (8).
19. antenna as claimed in claim 18, which is characterized in that the annular includes for allowing radio-frequency cable from the feedback
Electric antenna (4) leads to the opening (13) of the radio-frequency module (8).
20. a kind of anticollision detecting system, including antenna as described in any one of the preceding claims.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15152018.6A EP2889792A1 (en) | 2009-03-24 | 2010-03-23 | Method and system for identifying suspected phishing websites |
| EP15152018.6 | 2015-12-22 | ||
| PCT/IB2016/057820 WO2017109695A1 (en) | 2015-12-22 | 2016-12-20 | Antenna and anticollision detecting system comprising this antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108370091A true CN108370091A (en) | 2018-08-03 |
Family
ID=59091738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680073693.4A Pending CN108370091A (en) | 2010-03-23 | 2016-12-20 | Antenna and anticollision detecting system including this antenna |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3394926A1 (en) |
| CN (1) | CN108370091A (en) |
| WO (1) | WO2017109695A1 (en) |
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|---|---|---|---|---|
| JPH07307615A (en) * | 1994-05-13 | 1995-11-21 | Nec Corp | Reflected wave prevention type parabolic antenna |
| EP1014491A1 (en) * | 1998-12-23 | 2000-06-28 | Thomson-Csf | Wideband reflector antenna |
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| US20100033389A1 (en) * | 2008-08-07 | 2010-02-11 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automotive radar using a metamaterial lens |
| CN102751589A (en) * | 2011-04-20 | 2012-10-24 | 深圳光启高等理工研究院 | Microwave antenna made of metamaterials |
| CN102800969A (en) * | 2011-06-29 | 2012-11-28 | 深圳光启高等理工研究院 | Waveguide feed source and antenna |
| CN103036038A (en) * | 2011-07-26 | 2013-04-10 | 深圳光启高等理工研究院 | Fallback type radar antenna |
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| WO2004090830A1 (en) | 2003-04-08 | 2004-10-21 | Schauenburg Flexadux (Pty) Ltd | Collision avoidance method and system |
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| CA2734873C (en) | 2010-03-19 | 2015-05-12 | Marlex Engineering Inc. | Radio-frequency identification (rfid) safety system |
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2016
- 2016-12-20 CN CN201680073693.4A patent/CN108370091A/en active Pending
- 2016-12-20 WO PCT/IB2016/057820 patent/WO2017109695A1/en unknown
- 2016-12-20 EP EP16822749.4A patent/EP3394926A1/en not_active Withdrawn
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| JPH07307615A (en) * | 1994-05-13 | 1995-11-21 | Nec Corp | Reflected wave prevention type parabolic antenna |
| EP1014491A1 (en) * | 1998-12-23 | 2000-06-28 | Thomson-Csf | Wideband reflector antenna |
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| US20100033389A1 (en) * | 2008-08-07 | 2010-02-11 | Toyota Motor Engineering & Manufacturing North America, Inc. | Automotive radar using a metamaterial lens |
| CN102751589A (en) * | 2011-04-20 | 2012-10-24 | 深圳光启高等理工研究院 | Microwave antenna made of metamaterials |
| CN102800969A (en) * | 2011-06-29 | 2012-11-28 | 深圳光启高等理工研究院 | Waveguide feed source and antenna |
| CN103036038A (en) * | 2011-07-26 | 2013-04-10 | 深圳光启高等理工研究院 | Fallback type radar antenna |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3394926A1 (en) | 2018-10-31 |
| WO2017109695A1 (en) | 2017-06-29 |
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