CN104122556A - Radar apparatus for vehicle radar system - Google Patents
Radar apparatus for vehicle radar system Download PDFInfo
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- CN104122556A CN104122556A CN201310146527.0A CN201310146527A CN104122556A CN 104122556 A CN104122556 A CN 104122556A CN 201310146527 A CN201310146527 A CN 201310146527A CN 104122556 A CN104122556 A CN 104122556A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9315—Monitoring blind spots
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93272—Sensor installation details in the back of the vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2013/9327—Sensor installation details
- G01S2013/93275—Sensor installation details in the bumper area
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
The invention relates to a radar apparatus for a vehicle radar system. The radar apparatus comprises a base; a first antenna module which includes a first transmitting antenna and a plurality of first receiving antennas, is used for transmitting a detection signal and generating a first signal reception result, and is fixed on the base; a second antenna module which includes a second transmitting antenna and a plurality of second receiving antennas, is used for transmitting a detection signal and generating a second signal reception result, and is fixed on the base; and a control system which is disposed in the base, coupled to the first antenna module and the second antenna module, and used for outputting the detection signals to the first transmitting antenna and the second transmitting antenna and processing the first signal reception result and the second signal reception result. According to the invention, the antenna modules and the control system which are desired for performing blind spot detection can be integrated, the amount of wiring can be therefore significantly reduced and the assembly process is simplified.
Description
Technical field
The present invention relates to a kind of radar installations for Vehicle radar system, espespecially one can reduce required cabling, and simplifies the radar installations for Vehicle radar system of assembling flow path.
Background technology
Blind spot detection system is that one utilizes millimeter wave (Millimeter Wave) radar detection technology to reach the vehicle safety guard technology of warning in advance, and it detects the barrier state in vehicle blind spot district in the image autonomous identifying mode of machine vision.If discovering specific obstacle, system is present in blind spot district, the information such as early warning cresset or warning sound of initiatively sending give driver, make driver determine its travel direction according to warning result, avoid driver to cause the generation of Traffic Accidents because of carelessness or the factor such as visual dead angles, its running concept is simply shown in Fig. 1.
As shown in Figure 1, the visual dead angles (being blind spot district) that the dotted region 12,14 of one vehicle 10 both sides, rear is driver, therefore known blind spot detection system is that two groups of wireless signal transceivers 100,102 are set in bumper bar, with by transmitting and the reception of millimeter wave wireless signal, reach the object that detects barrier.Should be noted, Fig. 1 is the running concept of explanation blind spot detection system, therefore indicate the relative position of wireless signal transceiver 100,102.Generally speaking, wireless signal transceiver 100,102 is arranged in bumper bar, thereby can hide and do not discovered.In addition, as shown in Figure 1, wireless signal transceiver 100,102 is arranged at respectively the both sides of rear bumper bar according to the position in blind spot district 12,14.In this case, need when mounted to carry out setting and adjustment for the position of wireless signal transceiver 100,102 respectively, cause the increase that complexity is installed.
In addition, wireless signal transceiver 100,102 comprises respectively three parts, be digital signal processing (Digital Signal Processing, DSP), Electronic Control Unit (Electronic Control Unit, ECU) and radio frequency (Radio-Frequency, RF) part, these circuit or assembly all need to meet automobile-used condition (as temperature, vibrations etc.), cause manufacturing cost effectively to reduce, even therefore cannot popularize in most of vehicles.Because blind spot detection system can effectively reduce the incidence of traffic accident, if can further reduce the manufacturing cost of blind spot detection system, can effectively promote the rate that arranges of blind spot detection system, more can effectively reduce for the caused social cost of traffic accident.
Moreover the detection signal that wireless signal transceiver 100,102 is obtained respectively need further be sent to the Electronic Control Unit of vehicle interior, give driver to produce the information such as early warning cresset or warning sound in good time.In this case, because wireless signal transceiver 100,102 is divided into the both sides of rear view of vehicle, the complexity of coherent signal cabling thereby increase, and the step of assembling flow path also increases thereupon, may therefore affect vehicle fiduciary level or satisfaction.
On the other hand; due to shock-absorbing Poly Foam or glass fibre etc. can be set in car insurance bar conventionally; free space is very limited; therefore the supplier of blind spot detection system need be at material and the thickness etc. of vehicle design phase participative decision making bumper bar; and need be according to vehicular manufacturer's requirement; repeatedly revise the design of wireless signal transceiver, so also can reduce ageing.Moreover, if the sales target of Vehicle radar system is market after car, that is material and thickness that radar supplier cannot participative decision making bumper bar, in this case, how designs the wireless signal transceiver that is suitable for most of vehicle and just seem more difficult.
From the above, how effectively to reduce installation complexity, the production cost of blind spot detection system, and be effectively applicable to market after car, become one of target that industry makes great efforts.
Therefore, need to provide a kind of radar installations for Vehicle radar system to solve the problems referred to above.
Summary of the invention
Therefore, fundamental purpose of the present invention is to provide one can reduce required cabling, and simplifies the radar installations of the Vehicle radar system of assembling flow path.
The present invention discloses a kind of radar installations for Vehicle radar system, and this radar installations comprises: a pedestal; One first day wire module, this first day wire module comprises one first emitting antenna and multiple the first receiving antenna, is used for launching a detection signal and produces a first signal reception result, and this first day wire module is fixed on this pedestal; One second Anneta module, this second Anneta module comprises one second emitting antenna and multiple the second receiving antenna, is used for launching this detection signal and produces a secondary signal reception result, and this second Anneta module is fixed on this pedestal; An and control system, this control system is located in this pedestal and is coupled to this first day wire module and this second Anneta module, be used for exporting this detection signal to this first emitting antenna and this second emitting antenna, and process this first signal reception result and this secondary signal reception result.
The present invention also discloses a kind of radar installations for Vehicle radar system, and this radar installations comprises: multiple Anneta modules, and every day, wire module comprised an emitting antenna and multiple receiving antenna, was used for launching a detection signal and produced a signal reception result; An and control system, this control system comprises: a radio frequency processing module, this radio frequency processing module be used for exporting this detection signal to every day wire module this emitting antenna and process this signal reception result that the plurality of receiving antenna of wire module every day produces; One handover module, this handover module is coupled between the plurality of receiving antenna and this radio frequency processing module of wire module every day, is used for switching the plurality of receiving antenna of wire module every day and the connection relationship of this radio frequency processing module; An and computing module, this computing module is coupled to this radio frequency processing module and this handover module, be used for controlling this radio frequency processing module and produce this detection signal to the plurality of Anneta module, receive the handled multiple signal reception results of this radio frequency processing module to judge multiple barrier situations, and control this handover module and sequentially switch the plurality of receiving antenna of wire module every day and the link of this radio frequency processing module, make the plurality of Anneta module only have at one time multiple receiving antennas of an Anneta module and this radio frequency processing module to link.
The present invention can integrate execution blind spot and detect required Anneta module and control system, therefore can significantly reduce required cabling, and simplify assembling flow path.
Brief description of the drawings
Fig. 1 is the running schematic diagram of a known blind spot detection system.
Fig. 2 A is the schematic appearance of a radar installations of the embodiment of the present invention.
Fig. 2 B is the functional-block diagram of the radar installations of Fig. 2 A.
Fig. 2 C is the blind spot sensing range schematic diagram of the radar installations of Fig. 2 A.
Fig. 2 D is the radiation pattern schematic diagram of the radar installations of Fig. 2 A.
Fig. 2 E is the schematic diagram of a radar installations of the embodiment of the present invention.
Fig. 3 A is the schematic diagram of a control system of the embodiment of the present invention.
Fig. 3 B is the schematic diagram of one first radio frequency processing module in Fig. 3 A.
Fig. 4 A is the schematic diagram of a control system of the embodiment of the present invention.
Fig. 4 B is the time sequences schematic diagram of the control system of Fig. 4 A.
Fig. 5 is the functional-block diagram of an antenna assembly of the embodiment of the present invention.
Fig. 6 A is the functional-block diagram of an antenna assembly of the embodiment of the present invention.
Fig. 6 B is the time sequences schematic diagram of the antenna assembly of Fig. 6 A.
Primary clustering symbol description:
10 vehicles
12,14,26 regions
100,102 wireless signal transceivers
20,24,50,60 radar installationss
200 pedestals
202 first day wire modules
204 second Anneta modules
206,30,40 control system
22 crash bars
TX_1, TX_2 emitting antenna
RX_11, RX_12, RX_21, RX_22 receiving antenna
DET detection signal
RST_1～RST_n signal reception result
240 connecting pieces
300 first radio frequency processing modules
302 second radio frequency processing modules
304,404,500,604 computing modules
306 digital to analog converters
308,310 signal processing units
312 microwave transceivers
314,316,318 eveners
320,322 intermediate frequency amplifiers and bank of filters
324,326 analog-to-digital converters
D_DET digital command
P_t, N_t, P_r1, N_r1, P_r2, N_r2 differential wave
I1P, I1N, I2P, I2N homophase differential wave
Q1P, Q1N, the orthogonal differential wave of Q2P, Q2N
I1, I2 in-phase signal
The orthogonal differential wave of Q1, Q2
D_I1, D_I2 digital inphase signal
D_Q1, D_Q2 digital quadrature differential wave
400, RF_1～RF_n, 600 radio frequency processing modules
402,602 handover modules
406 power dividers
CTRL control signal
ANT_1～ANT_n Anneta module
Embodiment
Please refer to Fig. 2 A and Fig. 2 B, the schematic appearance of the radar installations 20 that Fig. 2 A is the embodiment of the present invention, Fig. 2 B is the functional-block diagram of radar installations 20.Radar installations 20 is for a Vehicle radar system, and as blind spot detection system, it includes a pedestal 200, a first day wire module 202, one second Anneta module 204 and a control system 206.Radar installations 20 can be installed in a nerf bar, for example, to lock or bonding mode is arranged on a crash bar 22, but is not limited to this.Detect required first day wire module 202, the second Anneta module 204 and control system 206 because radar installations 20 is integrated with execution blind spot, therefore can significantly reduce required cabling, and can simplify assembling flow path.
Specifically, first day wire module 202 is fixed on pedestal 200, and it includes an emitting antenna TX_1 and receiving antenna RX_11, RX_12; Emitting antenna TX_1 can launch a detection signal DET, and receiving antenna RX_11, RX_12 can produce a signal reception result RST_1.The second Anneta module 204 is also fixed on pedestal 200, and it includes an emitting antenna TX_2 and receiving antenna RX_21, RX_22; Emitting antenna TX_2 can launch detection signal DET, and receiving antenna RX_21, RX_22 can produce a signal reception result RST_2.Control system 206 is located in pedestal 200 and is coupled to first day wire module 202 and the second Anneta module 204, is used for output detection signal DET to the first emitting antenna TX_1 and the second emitting antenna TX_2 and processing signals reception result RST_1, RST_2.In simple terms, in the time there is barrier in the particular range of first day wire module 202, the detection signal DET that barrier is launched reflection emitting antenna TX_1, and receiving signal reception result RST_1 by receiving antenna RX_11, RX_12, control system 206 can judge in the sensing range of first day wire module 202 and has barrier by this.In like manner, in the time there is barrier in the particular range of the second Anneta module 204, the detection signal DET that barrier is launched reflection emitting antenna TX_2, and receiving signal reception result RST_2 by receiving antenna RX_21, RX_22, control system 206 can judge in the sensing range of the second Anneta module 204 and has barrier by this.In addition, should be noted, signal reception result RST_1, RST_2 represents respectively receiving antenna RX_11, RX_12 and receiving antenna RX_21, the combined result of the radiofrequency signal that RX_22 receives, that is to say, signal reception result RST_1 includes receiving antenna RX_11, the radio frequency receiving signal of RX_12, and signal reception result RST_2 includes receiving antenna RX_21, the radio frequency receiving signal of RX_22, this expression mode need be utilized the radio frequency receiving signal of two (or more than) receiving antennas because of blind spot detection system, speed that just can disturbance in judgement thing, the parameters such as direction, therefore the radio frequency receiving signal at this with two receiving antennas represents a signal reception result.
In addition, as shown in Figure 2 A, first day wire module 202 and the second Anneta module 204 are all fixed on pedestal 200, make first day wire module 202 and the second Anneta module 204 maintain an angle, the visual application of this angle and between 30 degree and 150 degree.For example, if the applied vehicle width of radar installations 20 is wider, can reduce the angle of first day wire module 202 and the second Anneta module 204; Otherwise, if the applied vehicle width of radar installations 20 is narrower, can improve the angle of first day wire module 202 and the second Anneta module 204.In this case, the blind spot sensing range of radar installations 20 is as shown in a region 26 in Fig. 2 C, and coherent radiation field pattern figure as shown in Figure 2 D.Comparison diagram 1 and Fig. 2 C are known, and radar installations 20, except simplifying cabling and assembling flow path, has more larger central sensing range; By this, except can be applicable to, blind spot detection, to be applied to rear overtaking collision after also can suitably revising and to warn, further promote traffic safety.
Fig. 2 A, Fig. 2 B are embodiments of the invention, and those of ordinary skill in the art should or apply requiredly according to system, suitably adjusts, and is not limited to this.For instance, in one embodiment, also can increase by an angle-adjusting mechanism, in order to adjust adaptively the angle of first day wire module 202 and the second Anneta module 204, these increase angle-adjusting mechanism should belong to technology well known in the art.In addition, in Fig. 2 A, the top of first day wire module 202 and the second Anneta module 204 is connected, but, being not limited to this, first day wire module 202 also can separate with the second Anneta module 204.For instance, please refer to Fig. 2 E, the schematic diagram of the radar installations 24 that Fig. 2 E is the embodiment of the present invention.Radar installations 24 is similar to radar installations 20, therefore the assembly of identical function represents with same-sign.Radar installations 24 and radar installations 20 differences are first day wire module 202 and the second Anneta module 204 connecting piece 240 of being also separated by, and it can reduce cabling and simplification assembling flow path equally.Should be noted, size, the material etc. of connecting piece 240 are unlimited, can suitably adjust according to different application.For instance, in one embodiment, the size of size conforms one vehicle license of connecting piece 240, makes radar installations 24 can be arranged at the position of vehicle installing licence plate, and vehicle license is installed on connecting piece 240.
On the other hand, in radar installations 20, control system 206 is in order to control first day wire module 202 and the second Anneta module 204, and related realization mode is unlimited.For instance, please refer to Fig. 3 A, the schematic diagram of the control system 30 that Fig. 3 A is the embodiment of the present invention.Control system 30 can realize the control system 206 of radar installations 20, and it includes one first radio frequency processing module 300, one second radio frequency processing module 302 and a computing module 304.The first radio frequency processing module 300 and the second radio frequency processing module 302 are respectively coupled to first day wire module 202 and the second Anneta module 204, in order to coordinate the running of first day wire module 202 and the second Anneta module 204.In other words, the first radio frequency processing module 300 is used for output detection signal DET to the first emitting antenna TX_1 and processing signals reception result RST_1, and the second radio frequency processing module 302 is used for output detection signal DET to the second emitting antenna TX_2 and processing signals reception result RST_2.Computing module 304 can be the processing components that microcontroller, digital signal processor etc. have digital operation function, be used for controlling the first radio frequency processing module 300 and the second radio frequency processing module 302 produces detection signal DET, and receive signal reception result RST_1, RST_2, with disturbance in judgement principle shape.
The implementation of the first radio frequency processing module 300 and the second radio frequency processing module 302 is also not limited to certain architectures.For instance, please refer to Fig. 3 B, Fig. 3 B is the schematic diagram of an embodiment of the first radio frequency processing module 300.The first radio frequency processing module 302 can also same architecture realize, therefore separately do not repeat.As shown in Figure 3 B, the first radio frequency processing module 300 includes a digital to analog converter 306, signal processing unit 308,310, a microwave transceiver 312, evener 314,316,318; Wherein, signal processing unit 308 includes an intermediate frequency amplifier and bank of filters 320 and an analog-to-digital converter 324, and signal processing unit 310 includes an intermediate frequency amplifier and bank of filters 322 and an analog-to-digital converter 326.
The function mode of the first radio frequency processing module 300 is summarized as follows.First, for signal transmitting running, when will be by the first emitting antenna TX_1 transmitting detection signal DET, computing module 304 outputs be relevant to a digital command (or digital signal, the package) D_DET of detection signal DET to digital to analog converter 306.Digital to analog converter 306 can be converted to digital command D_DET simulating signal and export microwave transceiver 312 to, to carry out after the running such as modulation, mixed (liter) frequency, be converted to differential wave P_t, N_t, then via evener 314, differential wave P_t, N_t are converted to detection signal DET, detection signal DET is emitted in air by the first emitting antenna TX_1.
Relatively, receive running for signal, the radiofrequency signal that evener 316,318 receives (in signal reception result RST_1) receiving antenna RX_11, RX_12 is converted to respectively differential wave P_r1, N_r1 and P_r2, N_r2, recycling microwave transceiver 312 mixes (falling) frequently, after the running such as demodulation, be converted to homophase differential wave I1P, I1N, orthogonal differential wave Q1P, Q1N and homophase differential wave I2P, I2N, orthogonal differential wave Q2P, Q2N.Then the differential wave that, intermediate frequency amplifier and bank of filters 320,322 are exported microwave transceiver 312 is converted to respectively in-phase signal I1, orthogonal differential wave Q1 and in-phase signal I2, orthogonal differential wave Q2.Finally, in-phase signal I1, orthogonal differential wave Q1 and in-phase signal I2, orthogonal differential wave Q2 are converted to digital inphase signal D_I1, digital quadrature differential wave D_Q1 and digital inphase signal D_I2, digital quadrature differential wave D_Q2 by analog-to-digital converter 324,326, and export computing module 304, computing module 304 disturbance in judgement principle shape according to this to.
In the embodiment of Fig. 3 B, microwave transceiver 312 operates in differential mode, therefore need utilize evener 314,316,318 that single-ended signal is converted to both-end (differential) signal.But, in other embodiments, if microwave transceiver 312 operates in mono signal when differential mode, also removable evener 314,316,318.These technology of utilizing evener 314,316,318 to carry out single-ended signal and double-end signal conversion should belong to signal processing mode well known in the art.In addition, the first radio frequency processing module 300 of Fig. 3 B is also converted to homophase and orthogonal domain by signal reception result RST_1, but is not limited to this, also can maintain in other embodiments time domain operation.
The control system 30 of Fig. 3 A utilize two independently radio frequency processing module (300,302) process respectively signal reception result RST_1, the RST_2 that first day wire module 202 and the second Anneta module 204 produce, in addition, the present invention also provides the embodiment of the control system of shared radio frequency processing module.Please refer to Fig. 4 A, the schematic diagram of the control system 40 that Fig. 4 A is the embodiment of the present invention.Control system 40 can realize the control system 206 of radar installations 20, and it includes a radio frequency processing module 400, a handover module 402, a computing module 404 and a power divider 406.Radio frequency processing module 400 in order to output detection signal DET to power divider 406, and processing signals reception result RST_1 or RST_2, its function mode, framework, variation pattern etc. can be identical with the first radio frequency processing module 300 of Fig. 3 B, therefore do not repeat.Power divider 406 can be dispensed to detection signal DET the first emitting antenna TX_1 and the second emitting antenna TX_2.Handover module 402 is coupled between receiving antenna RX_11, RX_12, RX_21, RX_22 and radio frequency processing module 400, is used for switching the connection relationship of receiving antenna RX_11, RX_12, RX_21, RX_22 and radio frequency processing module 400.Computing module 404 can be the processing components that microcontroller, digital signal processor etc. have digital operation function, be used for controlling radio frequency processing module 400 and produce detection signal DET, and sequentially receive signal reception result RST_1 or RST_2, with disturbance in judgement principle shape.
Specifically, computing module 404 can pass through a control signal CTRL, control handover module 402 sequentially switch by first day wire module 202 output signal reception result RST_1 to radio frequency processing module 400 or by the second Anneta module 204 output signal reception result RST_2 to radio frequency processing module 400, make sequentially hand-off process signal reception result RST_1 and RST_2 of radio frequency processing module 400 and computing module 404, as shown in the sequential chart of Fig. 4 B.In other words, first day wire module 202 and the second Anneta module 204 shared radio frequency processing modules 400, can further reduce production costs and required circuit area by this.In addition, should be noted, Fig. 4 B is in order to represent sequentially hand-off process signal reception result RST_1 and RST_2 of radio frequency processing module 400 and computing module 404, in practical operation, the processing of signal reception result RST_1 and RST_2 can comprise a time interval, that is handles after signal reception result RST_1, can wait for a special time, start again processing signals reception result RST_2, and the rest may be inferred.
On the other hand, the antenna assembly 20 of Fig. 2 A detects the blind spot district of rear view of vehicle both sides with first day wire module 202 and the second Anneta module 204.But this framework is only an embodiment, also can suitably derives and extend to other application.For instance, for oversize vehicle (as Combination Truck Tractor-trailer (container car), coach) or specific heavy-duty machine tool (as crane, dozer, navvy) etc., blind spot district with respect to driving or operator may be not limited to both sides, rear, therefore also can set up antenna assembly 20 at front, the side etc. of vehicle or facility, or, suitably increase extra Anneta module according to the framework of antenna assembly 20.Wherein, identical antenna assembly 20 is installed on to the diverse location of vehicle if increase surveyed area, its mode of operation can be with reference to described in front.On the other hand, if by increasing the Anneta module quantity in antenna assembly 20, can have different implementations according to the control system 40 of the control system 30 of Fig. 3 A and Fig. 4 A.
First, please refer to Fig. 5, the functional-block diagram of the antenna assembly 50 that Fig. 5 is the embodiment of the present invention.Antenna assembly 50 is for a Vehicle radar system, and as blind spot detection system, its radar installations 20 by Fig. 2 B is derived, and is applicable to plural surveyed area.Specifically, antenna assembly 50 includes Anneta module ANT_1～ANT_n, radio frequency processing module RF_1～RF_n and a computing module 500.Comparison diagram 5 and Fig. 3 A are known, antenna assembly 50 adopts the framework of the control system 30 of Fig. 3 A, that is radio frequency processing module RF_1～RF_n independently output detection signal to Anneta module ANT_1～ANT_n, and process respectively signal reception result RST_1～RST_n that Anneta module ANT_1～ANT_n produces, therefore relevant function mode and implementation can be with reference to control system 30.
In addition, please refer to Fig. 6 A, the functional-block diagram of the antenna assembly 60 that Fig. 6 A is the embodiment of the present invention.Antenna assembly 60 is for a Vehicle radar system, and as blind spot detection system, its radar installations 20 by Fig. 2 B is derived, and is applicable to plural surveyed area.Specifically, antenna assembly 60 includes Anneta module ANT_1～ANT_n, a radio frequency processing module 600, a handover module 602 and a computing module 604.Comparison diagram 6A and Fig. 4 A are known, antenna assembly 60 adopts the framework of the control system 40 of Fig. 4 A, that is computing module 604 is controlled the sequentially connection relationship of receiving antenna and radio frequency processing module 600 in switched antenna modules A NT_1～ANT_n of handover module 602, make radio frequency processing module 600 sequentially process signal reception result RST_1～RST_n that Anneta module ANT_1～ANT_n produces, correlation timing figure as shown in Figure 4 B.In this case, Anneta module ANT_1～ANT_n shared radio frequency processing module 600, can further reduce production costs and required circuit area by this.Function mode and implementation about antenna assembly 60 can, with reference to control system 40, be not repeated herein.
In known technology, because the wireless signal transceiver of blind spot detection system is arranged at respectively the both sides of rear view of vehicle bumper bar, cause the increase that complexity, production cost are installed, and cannot be applicable to market after car.By contrast, radar installations of the present invention can be integrated execution blind spot and detect required Anneta module and control system, therefore can significantly reduce required cabling, and simplify assembling flow path.
Claims (16)
1. for a radar installations for Vehicle radar system, this radar installations comprises:
One pedestal;
One first day wire module, this first day wire module comprises one first emitting antenna and multiple the first receiving antenna, is used for launching a detection signal and produces a first signal reception result, this first day wire module is fixed on this pedestal;
One second Anneta module, this second Anneta module comprises one second emitting antenna and multiple the second receiving antenna, is used for launching this detection signal and produces a secondary signal reception result, this second Anneta module is fixed on this pedestal; And
One control system, this control system is located in this pedestal and is coupled to this first day wire module and this second Anneta module, be used for exporting this detection signal to this first emitting antenna and this second emitting antenna, and process this first signal reception result and this secondary signal reception result.
2. radar installations as claimed in claim 1, wherein this first day wire module and this second Anneta module are roughly an angle, and this angle is between 30 degree and 150 degree.
3. radar installations as claimed in claim 1, wherein this pedestal also comprises a connecting piece, this connecting piece is arranged between this first day wire module and this second Anneta module, is used for fixing the relative position of this first day wire module and this second Anneta module.
4. radar installations as claimed in claim 3, the wherein size of size conforms one vehicle license of this connecting piece.
5. radar installations as claimed in claim 1, wherein this control system comprises:
One radio frequency processing module, this radio frequency processing module is used for exporting this detection signal to this first and second emitting antenna, and processes this first signal reception result and this secondary signal reception result;
One handover module, this handover module is coupled between the plurality of first and second receiving antenna and this radio frequency processing module, is used for switching the connection relationship of the plurality of first and second receiving antenna and this radio frequency processing module; And
One computing module, this computing module is coupled to this radio frequency processing module and this handover module, be used for controlling this radio frequency processing module and produce this detection signal to this first and second emitting antenna, receive this first and second signal reception result to judge multiple barrier situations, and control this handover module and sequentially switch and export this first signal reception result by this first day wire module and export this secondary signal reception result to this radio frequency processing module to this radio frequency processing module or by this second Anneta module.
6. radar installations as claimed in claim 5, wherein this radio frequency processing module comprises:
One digital to analog converter, this digital to analog converter is coupled to this computing module, is used for a control signal of this computing module to be converted to this detection signal;
Multiple signal processing units, the plurality of signal processing unit is coupled to this computing module and corresponding to the plurality of the first receiving antenna or the plurality of the second receiving antenna, is used for changing and exporting this first signal reception result or this secondary signal reception result to this computing module; And
One microwave transceiver, this microwave transceiver is coupled to the plurality of Anneta module, this handover module, this digital to analog converter and the plurality of signal processing unit, this detection signal that is used for this digital to analog converter to change is sent to this first and second emitting antenna, and respectively this handover module is exported this first or secondary signal reception result be sent to the plurality of signal processing unit.
7. radar installations as claimed in claim 6, wherein each signal processing unit of the plurality of signal processing unit comprises:
One wave filter, this wave filter is coupled to this microwave transceiver, be used for filtering this first or secondary signal reception result in noise;
One intermediate frequency amplifier, this intermediate frequency amplifier is coupled to this wave filter, be used for amplifying this first or secondary signal reception result; And
One analog-to-digital converter, this analog-to-digital converter is coupled to this intermediate frequency amplifier and this computing module, be used for changing this first or secondary signal reception result be a numeric results, and export this numeric results to this computing module.
8. radar installations as claimed in claim 6, wherein this radio frequency processing module also comprises a power divider, this power divider is coupled between this microwave transceiver and this first and second emitting antenna, is used for this detection signal to be dispensed to this first and second emitting antenna.
9. radar installations as claimed in claim 1, wherein this control system comprises:
One first radio frequency processing module, this first radio frequency processing module is used for exporting this detection signal to this first emitting antenna, and processes this first signal reception result;
One second radio frequency processing module, this second radio frequency processing module is used for exporting this detection signal to this second emitting antenna, and processes this secondary signal reception result;
One computing module, this computing module is coupled to this first and second radio frequency processing module, be used for controlling this first and second radio frequency processing module and produce this detection signal to this first and second emitting antenna, and receive this first and second signal reception result to judge multiple barrier situations.
10. radar installations as claimed in claim 9, wherein this first or second radio frequency processing module comprises:
One digital to analog converter, this digital to analog converter is coupled to this computing module, is used for a control signal of this computing module to be converted to this detection signal;
Multiple signal processing units, each signal processing unit is corresponding to one first receiving antenna or one second receiving antenna, the plurality of signal processing unit is coupled to this computing module, be used for conversion and export this first or secondary signal reception result to this computing module; And
One microwave transceiver, this microwave transceiver is coupled to this first or second Anneta module, this digital to analog converter and the plurality of signal processing unit, this detection signal that is used for this digital to analog converter to change is sent to this first or second emitting antenna, and by this first or secondary signal reception result be sent to this signal processing unit.
11. radar installationss as claimed in claim 10, wherein each signal processing unit of the plurality of signal processing unit comprises:
One wave filter, this wave filter is coupled to this microwave transceiver, be used for filtering this first or secondary signal reception result in noise;
One intermediate frequency amplifier, this intermediate frequency amplifier is coupled to this wave filter, be used for amplifying this first or secondary signal reception result; And
One analog-to-digital converter, this analog-to-digital converter is coupled to this intermediate frequency amplifier and this computing module, be used for changing this first or secondary signal reception result be a numeric results, and export this numeric results to this computing module.
12. radar installationss as claimed in claim 1, wherein this first and second signal reception result is all differential form.
13. 1 kinds of radar installationss for Vehicle radar system, this radar installations comprises:
Multiple Anneta modules, every day, wire module comprised an emitting antenna and multiple receiving antenna, was used for launching a detection signal and produced a signal reception result; And
One control system, this control system comprises:
One radio frequency processing module, this radio frequency processing module be used for exporting this detection signal to every day wire module this emitting antenna and process this signal reception result that the plurality of receiving antenna of wire module every day produces;
One handover module, this handover module is coupled between the plurality of receiving antenna and this radio frequency processing module of wire module every day, is used for switching the plurality of receiving antenna of wire module every day and the connection relationship of this radio frequency processing module; And
One computing module, this computing module is coupled to this radio frequency processing module and this handover module, be used for controlling this radio frequency processing module and produce this detection signal to the plurality of Anneta module, receive the handled multiple signal reception results of this radio frequency processing module to judge multiple barrier situations, and control this handover module and sequentially switch the plurality of receiving antenna of wire module every day and the link of this radio frequency processing module, make the plurality of Anneta module only have at one time multiple receiving antennas of an Anneta module and this radio frequency processing module to link.
14. radar installationss as claimed in claim 13, wherein this radio frequency processing module comprises:
One digital to analog converter, this digital to analog converter is coupled to this computing module, is used for a control signal of this computing module to be converted to this detection signal;
Multiple signal processing units, the plurality of signal processing unit is coupled to this computing module and corresponding to the plurality of receiving antenna, is used for changing and exporting the plurality of signal reception result to this computing module; And
One microwave transceiver, this microwave transceiver is coupled to the plurality of Anneta module, this handover module, this digital to analog converter and the plurality of signal processing unit, this detection signal that is used for this digital to analog converter to change is sent to this emitting antenna of wire module every day, and the plurality of signal reception result that this handover module is exported is sent to the plurality of signal processing unit.
15. radar installationss as claimed in claim 14, wherein each signal processing unit of the plurality of signal processing unit comprises:
One wave filter, this wave filter is coupled to this microwave transceiver, is used for the noise of a signal reception result in the plurality of signal reception result of filtering;
One intermediate frequency amplifier, this intermediate frequency amplifier is coupled to this wave filter, is used for amplifying this signal reception result; And
One analog-to-digital converter, this analog-to-digital converter is coupled to this intermediate frequency amplifier and this computing module, is used for changing this signal reception result into a numeric results, and exports this numeric results to this computing module.
16. radar installationss as claimed in claim 14, wherein this radio frequency processing module also comprises a power divider, this power divider be coupled to this microwave transceiver and every day wire module this emitting antenna between, be used for this detection signal to be dispensed to this emitting antenna of wire module every day.
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| CN201310146527.0A CN104122556B (en) | 2013-04-24 | 2013-04-24 | Radar installations for Vehicle radar system |
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