CN105699978A - Automobile supersonic wave detecting method and sensor - Google Patents
Automobile supersonic wave detecting method and sensor Download PDFInfo
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- CN105699978A CN105699978A CN201610122775.5A CN201610122775A CN105699978A CN 105699978 A CN105699978 A CN 105699978A CN 201610122775 A CN201610122775 A CN 201610122775A CN 105699978 A CN105699978 A CN 105699978A
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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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar 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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
- G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
- G01S2015/932—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an automobile supersonic wave detecting method and a sensor. The method includes the steps that: a plurality of microphones in the sensor are controlled to work together, and each microphone employs the same work frequency and respectively emits outwardly and receives detecting signals in the same work sequence; the signals of each microphone are mutually superposed and enhanced, so that superposed signals can be propagated a long distance, and in an effective distance, echo signals are mutually superposed and enhanced, so that the echo signals can be recognized and judged after the echo signals are received. The automobile supersonic wave detecting method makes the sensor have stronger long distance detecting capacity, and can detect and recognize an object with a longer distance. The automobile supersonic wave detecting method and the sensor can be applied to a blind spot monitoring system and an automatic parking system. The detecting capacity of the sensor is greatly enhanced, so that the blind spot monitoring system is greatly raised. The automobile supersonic wave detecting method and the sensor have better practicality, and have active meaning.
Description
Technical field
The present invention relates to a kind of automobile ultrasonic method for detecting and sensor。
Background technology
Ultrasonic sensor utilization on automobile is increasingly to popularize, the radar for backing car being such as commonly called as onboard, namely parking assisting system before and after, by after being arranged in car and the ultrasonic sensor of Herba Plantaginis surrounding enviroment before and after automobile are detected, differentiate object, cleaning blind area, employing is ultrasonic detection technology, and sensor used is ultrasonic sensor。
At present, automobile newly increasing semiautomatic parking system or the automated parking system (being hereafter referred to collectively as automated parking system) of utilization, it is also by ultrasonic sensor, surrounding is detected, and finds with automatic parking sensor, identifies parking stall。Automobile blind spot monitoring system (or claiming automobile blind spot aid system) used on current partial automobile, what be also adopted by is ultrasonic detection technology, its by blind-spot sensors to vehicle right and left track exterior mirror not it is observed that region, blind area detect, to assist driver's lane change, driving。
As it is shown in figure 1, be provided with park sensor 16,13(be also commonly called as reversing radar sensor), be respectively arranged diverse location after Herba Plantaginis, car, before number of probes be generally 4 or 2, after number of probes be generally 4 or 3, or 2。The usual car of blind-spot sensors 11,12 is left back and car right after each arrange 1。On the left of the usual Herba Plantaginis of automatic parking sensor 14,15,17,18, on the right side of Herba Plantaginis, after car, after left side, car, right side is each arranges 1；Automatic parking sensor 14,15 also serves as the aiding sensors of ultrasound wave blind monitoring system simultaneously, and part automated parking system only has two automatic parking sensors 14,15, it does not have arrange automatic parking sensor 17,18。
The sensor used on current automobile, such as sensor 16,13 of parking, blind-spot sensors 11,12, automatic parking sensor 14,15,17,18, is all traditional ultrasonic sensor。Because sensor language function is different, it is therefore different to the detection performance required by various sensors。Require in detecting response speed, reversing radar sensor (sensor 16,13 of parking), because being all vehicle starting, park, use of stopping, therefore that the response speed requirement of sensor is relatively low。Blind-spot sensors 11,12, because using (comprising at a high speed) in vehicle traveling process, therefore requires relatively high to the response speed of sensor。Automatic parking sensor 14,15,17,18,14,15 also serves as blind monitoring system supplymentary sensor, and therefore it all needs effect in middle low speed, high speed, therefore require of a relatively high to its response speed。
The detecting ability of sensor, generally with sensor, the PVC water pipe of diameter 75MM is (following, the PVC water pipe of diameter 75MM is referred to as par) carry out detecting (iso standard), farthest detecting distance is then the maximum detecting ability of sensor, the detecting ability of sensor is more strong, the farthest detecting distance of par is more big, and the detecting ability of sensor is more weak, and the farthest detecting distance of par is then more little。
In the detecting ability of sensor, sensor 16,13 of parking is as closely detecting utilization, and therefore the detecting Capability Requirement of sensor is relatively low, generally, the range distance of sensor is set to about 2.5M, to par about 2M can measure then can, the requirement of system can be met。
Blind-spot sensors 11,12 is as the vehicle of blind area, track, automobile outer rear-view mirror left and right carries out detecting needs, therefore the remote detecting Capability Requirement of sensor is of a relatively high, the range distance of usual sensor is set to 4-6 rice, and par is measured at 4-5M required distance。
Automatic parking sensor 14,15,17,18 is detected as parking stall ambient condition, is identified use, and therefore the remote detecting Capability Requirement of sensor is of a relatively high, and the range distance of usual sensor is set to 4-6 rice, and par is measured at 4-5M required distance。
Remote detecting ability and detecting response speed are of paramount importance two performance indications of ultrasonic sensor。
Blind-spot sensors 11,12, automatic parking sensor 14,15,17,18 is because the remote detection performance of traditional sensors itself is limited, although the range distance of sensor is set to 5 meters, but sensor is difficult to the par detecting distance at 4-5M place, it is typically only capable to detect at about 3M, just being difficult to more than 3.5M, the remote detecting ability of this that is traditional sensors is strong not。Detecting ability is inadequate, has just been difficult to, has realized blind monitoring function and the automatic parking function of automobile, even if achieving in other words, but the performance of blind monitoring system, automated parking system can be relatively low。
At present, the method that ability detected at a distance by usual enhancing sensor is:
One, the power of microphone in single sensor (also referred to as visiting core) is strengthened, such as adopt more large scale specification, more powerful microphone, such as same size specification microphone, but the specification changing internal piezoelectric ceramic piece increases power, microphone power increases, microphone is launched acoustic wave energy and is increased, and the backward energy of therefore same its reflection of object is enhanced；
Two, increase microphone dimensions, such as increase external diameter, highly, change microphone internal structure, strengthen the ultrasound wave receiving ability of microphone so that same transmitting power, but because microphone echo capacity gauge strengthens, thus improving sensitivity；
Three, microphone specification is constant, adds large sensor and drives the power of microphone, strengthens and launch and echo；Etc., to improve the remote detecting ability of sensor。
But above method, all exists following not enough at present:
One, because microphone own material, technique are limit, the sensitivity of microphone increases limited, so that the remote amplitude detecting capability improving of sensor is not as big, it is difficult to the amplitude of twice or several times is greatly improved；
Two, because the change of microphone specification, be not adopt conventional, the most general material, cause microphone performance to be not sufficiently stable, concordance poor；
Three, because of microphone self inherent character, detecting ability at a distance strengthen with sensitivity of microphone increase, sensor, the blind area of sensor can increase accordingly, namely sacrifices the closely detection performance of sensor。
Summary of the invention
For prior art Problems existing, it is an object of the invention to provide a kind of structure through improving, reach the automobile ultrasonic method for detecting of remote detecting, it is a further object of the present invention to provide a kind of automobile ultrasonic sensor implementing said method。
For achieving the above object, one automobile ultrasonic method for detecting of the present invention, particularly as follows: several microphone collaborative works in control sensor, each microphone adopts identical operating frequency and with identical work schedule respectively to external emission, reception detection signal；The signal of each microphone is overlapped mutually enhancing so that superposed signal can propagate larger distance, and meanwhile, in coverage, echo-signal is overlapped mutually enhancing so that echo-signal may identify which after receipt, judges。
Further, the work process of several described microphones is:
1) arranging N number of microphone, N >=2, including microphone 1, microphone 2 ... microphone N；
2) microphone 1, microphone 2 ... microphone N are identical operating frequency, and the single microphone detecting cycle is T；
3) microphone 1, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 1；
4) microphone 2, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 2；
5) microphone 3, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 3；Microphone working forms afterwards by that analogy, can obtain:
6) microphone N, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone N；
In operationally, ultrasound wave launched by each microphone simultaneously, and the signal of each microphone is overlapped mutually enhancing, and simultaneously in coverage, echo-signal is overlapped mutually enhancing, the remote detecting ability of ultrasonic sensor is greatly improved with this。
A kind of automobile ultrasonic sensor implementing said method of the present invention, including several microphones and electronic circuit cell, this electronic circuit cell controls each microphone respectively and adopts identical operating frequency and with identical work schedule to external emission, reception detection signal, the ultrasound wave making synchronized transmissions simultaneously is overlapped mutually enhancing, and the echo-signal of its formation is also overlapped mutually enhancing。
Further, several described microphone combination are structure as a whole。
Further, described sensor also includes casing assembly unit and the gum cover unit being mounted within, and casing assembly unit is provided with connector unit。
Further, described microphone is fixedly installed in described casing assembly unit by gum cover unit, and described connector unit is the external hardware interface of described sensor, and described sensor externally transmits signal by described connector unit。
Further, described microphone is driven and echo-signal is amplified, filters by described electronic circuit cell, calculation process, to draw detecting distance。
Further, being provided with some groups of ultrasonic emitting modules and ultrasound wave receiver module in described electronic circuit cell, one group of ultrasonic emitting module, ultrasound wave receiver module control its work corresponding to a described microphone。
Further, integrally disposed in described electronic circuit cell have single-chip microcomputer。
Further, integrally disposed in described electronic circuit cell have power module and communication module, and described sensor externally carries out signal transmission by described communication module。
Further, described covers disposed on sensor is equipped with 3 pins for external connection: pin PIN1, pin PIN2 and pin PIN4, or is provided with 4 pins: pin PIN1, pin PIN2, pin PIN3 and pin PIN4；Wherein, at described sensor internal, pin PIN1 is connected with described power module, and pin PIN4 is earth terminal, and pin PIN2 is connected with described communication module, or pin PIN2, pin PIN3 are connected with described communication module respectively。
Further, when described sensor monitors the utilization of system blind spot detection sensor as automobile blind spot, described sensor and automobile reflector are set to one。
Sensor is the invention enables to have higher remote detecting ability, it is possible to farther object of adjusting the distance carries out detecting, identifying。Apply to blind monitoring system, automated parking system, be significantly increased because the detecting ability relatively traditional sensors of sensor has had, therefore significantly improve the performance of blind monitoring system, automatic parking system so that it is there is better practicality, great positive effect。
Accompanying drawing explanation
Fig. 1 is that automobile ultrasonic sensor arranges schematic diagram；
Fig. 2 be traditional sensors adjust the distance LG1 par detecting schematic diagram；
Fig. 3 be traditional sensors adjust the distance LG2 par detecting schematic diagram；
Fig. 4 is the sensor construction axonometric chart arranging two microphones；
Fig. 5 is the end view of the sensor arranging two microphones；
Fig. 6 is the sensor construction schematic diagram arranging two microphones；
Fig. 7 is the sensor construction schematic diagram arranging three microphones；
Fig. 8 is the sensor construction schematic diagram arranging four microphones；
Fig. 9 is the sensor construction schematic diagram arranging six microphones；
Figure 10 is that traditional sensors is adjusted the distance LG2 par work of detection and examination clock signal schematic diagram；
Figure 11 adjusts the distance LG2 par work of detection and examination clock signal schematic diagram for arranging two microphone sensors；
Figure 12 adjusts the distance LG2 par work of detection and examination clock signal schematic diagram for arranging three microphone sensors；
Figure 13 is the internal theory diagram of inventive sensor；
Figure 14 is that sensor arranges schematic diagram with reflector assembly；
Figure 15 is that traditional sensors is adjusted the distance LG1 par work of detection and examination clock signal schematic diagram。
Detailed description of the invention
Below, with reference to accompanying drawing, the present invention is more fully illustrated, shown in the drawings of the exemplary embodiment of the present invention。But, the present invention can be presented as multiple multi-form, is not construed as the exemplary embodiment being confined to describe here。And it is to provide these embodiments, so that the present invention is fully and completely, and will fully convey the scope of the invention to those of ordinary skill in the art。
For ease of illustrating, here can use such as " on ", the space relative terms such as D score " left side " " right side ", be used for shown in figure a element or the feature relation relative to another element or feature is described。It should be understood that except the orientation shown in figure, spatial terminology is intended to include device different azimuth in use or operation。Such as, if the device in figure is squeezed, be stated as the element being positioned at other elements or feature D score will be located into other elements or feature " on "。Therefore, exemplary term D score can comprise upper and lower both orientation。Device can otherwise position (90-degree rotation or be positioned at other orientation), relatively illustrates used herein of space correspondingly to explain。
One automobile ultrasonic method for detecting of the present invention, particularly as follows: several microphone collaborative works controlled in sensor, each microphone adopts identical operating frequency and with identical work schedule respectively to external emission, reception detection signal；The signal of each microphone is overlapped mutually enhancing so that superposed signal can propagate larger distance, and meanwhile, in coverage, echo-signal is overlapped mutually enhancing so that echo-signal may identify which after receipt, judges。
One automobile ultrasonic method for detecting of the present invention, is directed to N number of microphone, its method step particularly as follows:
1) arranging N number of microphone, N >=2, including microphone 1, microphone 2 ... microphone N；
2) microphone 1, microphone 2 ... microphone N are identical operating frequency, and the single microphone detecting cycle is T；
3) microphone 1, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 1；
4) microphone 2, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 2；
5) microphone 3, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 3；Microphone working forms afterwards by that analogy, can obtain:
6) microphone N, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone N；
In operationally, ultrasound wave launched by each microphone simultaneously, and the signal of each microphone is overlapped mutually enhancing, and simultaneously in coverage, echo-signal is overlapped mutually enhancing, the remote detecting ability of ultrasonic sensor is greatly improved with this。
As shown in Fig. 4 to Figure 14, a kind of automobile ultrasonic sensor implementing said method of the present invention, including several microphones (also referred to as visiting core), casing assembly unit, gum cover unit, electronic circuit cell and connector unit。Integrally disposed in electronic circuit cell have single-chip microcomputer, power module, communication module and some groups of ultrasonic emitting modules and ultrasound wave receiver module。
Microphone is fixedly installed in casing assembly unit by gum cover unit, and microphone is driven and echo-signal is amplified, filtering by electronic circuit cell, calculation process, to draw detecting distance；External signal is transmitted by sensor by connector unit。
Being provided with some groups of ultrasonic emitting modules, ultrasound wave receiver module in electronic circuit cell, one group of ultrasonic emitting module, ultrasound wave receiver module control its work corresponding to a microphone。Electronic circuit cell controls each microphone respectively and adopts identical operating frequency and with identical work schedule to external emission, reception detection signal, the ultrasound wave making synchronized transmissions simultaneously is overlapped mutually enhancing, and the echo-signal of its formation is also overlapped mutually enhancing。
Further, several microphones and other assemblies are all combined into one structure, to form complete, an independent ultrasonic sensor。
Automobile ultrasonic sensor of the present invention is provided with 3 pins for external connection or 4 pins, 3 pins: pin PIN1, pin PIN2 and pin PIN4；4 pins: pin PIN1, pin PIN2, pin PIN3 and pin PIN4。PIN2, PIN3 are connected with communication module, but when practice, sensor is likely to and is only communication foot (not needing 2)。Therefore, at sensor internal, pin PIN1 is connected with described power module, and pin PIN4 is earth terminal, and pin PIN2 is connected with communication module, or pin PIN2, pin PIN3 are connected with described communication module respectively。
Fig. 4, Fig. 5 are the automobile ultrasonic sensor being provided with two microphones, Fig. 7 is the automobile ultrasonic sensor being provided with three microphones, Fig. 8 is the automobile ultrasonic sensor being provided with four microphones, and Fig. 9 is the automobile ultrasonic sensor being provided with six microphones。
Embodiment one:
To be provided with two microphones shown in Fig. 4, Fig. 5, Fig. 6, it is described as follows:
Automobile ultrasonic sensor of the present invention, including microphone 20a1, microphone 20a2, silica gel sheath unit 20b1, silica gel sheath unit 20b2, electronic circuit cell 20d, connector unit 20e, casing assembly unit 20c(containing possible filling glue)。Wherein, silica gel sheath unit 20b1, silica gel sheath unit 20b2 can be designed to integrative-structure according to architectural feature。
Silica gel sheath unit 20b1, silica gel sheath unit 20b2 provide protection and cushioning effect for microphone。Connector unit 20e realizes the hardware linkage function such as probe power supply, data transmission, and provides integral installation support and protection together with casing assembly unit 20c for sensor。Each unit assemble become one, formed sensor, usual sensor adopt fill glue carry out embedding, with realize water-proof function (operative sensor then directly utilize casing assembly carry out structural formula seal reach water-proof function, do not adopt filling glue carry out embedding)。
Being provided with two microphones in Fig. 4: microphone 20a1, microphone 20a2, the internal circuit of sensor is also provided with two sets corresponding to microphone 20a1 and microphone 20a2 accordingly and drives, receives, amplifies the interlock circuit modules such as filtering, computing。Microphone 20a1, microphone 20a2 adopt identical operating frequency, electronic circuit cell 20d works by identical Timing driver microphone 20a1, microphone 20a2 simultaneously, same environment (object) is detected, all in work in microphone 20a1 and microphone 20a2 section at the same time, it is synchronously performed ultrasonic emitting simultaneously。
As shown in Fig. 2, Figure 10, Figure 15, for the tradition list microphone sensor detecting schematic diagram to par, the range distance of sensor is L1(2.5M), the detecting distance of par is LG1 by sensor, produced work schedule signal such as Figure 15, TA-10a is the transmitting remained shock signal of the single microphone 10a of tradition, and SA-10a is the echo-signal of microphone 10a。Fig. 3 is the single microphone sensor detecting schematic diagram to par of tradition, the range distance of sensor is L2(5M), the detecting distance of par is set LG2=2*LG1 for LG2(by sensor), produced work schedule signal such as Figure 10, TB-10a is the transmitting remained shock signal of microphone 10a, and SB-10a is the echo-signal of microphone 10a。From Figure 15, Figure 10, same transmitting drives signal, and TB-10a and TA-10a is equal to, but because the distance of tested survey thing (par) adds one times (LG2=2*LG1), echo-signal SB-10a compares SA-10a intensity and is obviously reduced。
In the present invention, par is detected by two microphone sensors, the range distance of sensor is L2(5M), the detecting distance of par is LG2 by sensor, produced work schedule signal such as Figure 11, TB-20a1 are the transmitting remained shock signal of microphone 20a1, and SB-20a1 is the echo-signal of microphone 20a1, TB-20a2 is the transmitting remained shock signal of microphone 20a2, and SB-20a2 is the echo-signal of microphone 20a2。From Figure 10, Figure 11, same distance, relatively conventional single microphone sensor, the present invention two microphone sensor is because two microphones are synchronously performed ultrasonic emitting simultaneously, enhance sensor emission power, therefore echo-signal SB-10a intensity produced by the relatively conventional single microphone sensor of the echo-signal SB-20a1 of par, SB-20a2 substantially increases, impalpable small echo-signal originally is made to become to may identify which, judge after strengthening change greatly, so that even if object is in larger distance, sensor also can detect。That is: the remote detecting ability of the present invention two microphone sensor significantly improves。
Embodiment two:
As it is shown in fig. 7, be three microphone construction schematic diagrams, it includes microphone 30a1, microphone 30a2, microphone 30a3。
The work schedule signal of three microphones is as shown in figure 12, arrange three microphone sensors par is detected, the range distance of sensor is L2(5M), the detecting distance of par is LG2 by sensor, TB-30a1 is the transmitting remained shock signal of microphone 30a1, SB-30a1 is the echo-signal of microphone 30a1, TB-30a2 is the transmitting remained shock signal of microphone 30a2, SB-30a2 is the echo-signal of microphone 30a2, TB-30a3 is the transmitting remained shock signal of microphone 30a3, and SB-30a3 is the echo-signal of microphone 30a3；It can be seen that its relative two microphone sensors, the echo-signal of sensor strengthens (echo-signal SB-30a1 is higher relative to echo-signal SB-20a1) again to some extent, say, that it has farther detecting ability。In like manner, in the present invention, when sensor the quantity of integrated microphone increase further, then the remote detecting ability of sensor can further enhance。
Fig. 8 is the structural representation being provided with 4 microphones, and Fig. 9 is the structural representation being provided with 6 microphones。The rest may be inferred, in the present invention, when sensor the quantity of integrated microphone increase further, under the premise ensureing detection signal intensity, the remote detecting ability of sensor can further enhance。
Two microphones of the present invention or many microphones sensor, on sensor, each microphone is set to identical frequency, such as, is 40K or 48K, or 58K etc.。
As shown in figure 14, a kind of mounting structure form of inventive sensor, sensor and automobile reflector 10(reflecting piece) it is set to one。That is: left two microphones or many microphones sensor are set to one with left reflector, make left set of part (little total member), right two microphones or many microphones sensor are set to one with right reflector, make right assembly, then left and right assembly is mounted on automobile rear bumper again。
This arranges form and has the advantage that one, and sensor and reflector are equipped with and are integrated, it appears each microphone is more hidden, so that overall appearance is attractive in appearance after car。If two microphones or the direct mounting arrangements of many microphones sensor are in bumper, because must the microphone quantity that exposes of outer surface many, sensor is relatively big, and two microphones or many microphones sensor can be made to seem to seem excessively prominent on bumper, less graceful。Two, by the adjustment of assembly own form, structure, assembly is the adjustment of position, angle on bumper so that sensor is easily selected onboard, obtained layout orientation more preferably and angle, thus obtaining detection performance more preferably。Blind-spot sensors is directly mounted on the mode on bumper, then lack such adjustment degree of freedom, it is achieved get up relatively difficult。Three, bumper color has a variety of, and sensor and reflector are equipped with and are integrated, it is possible to greatly reduces the color category of spray paint needed for sensor appearance, only needs one or two kind and mate good color with reflector。If but the direct mounting arrangements of sensor is on bumper, for making sensor outer surface keep the color the same with vehicle body, then need a variety of coloured paint, so that processing trouble, cost increase。
Simultaneously, automobile ultrasonic method for detecting of the present invention and sensor, except being used on usually said automobile, on the vehicle can also be used in all kinds of kinds such as tricycle, motorcycle, tricycle for the disabled, electric bicycle, varying in size, as adopted automobile ultrasonic method for detecting of the present invention and sensor, broadly fall into the scope that the present invention contains。
Claims (12)
1. an automobile ultrasonic method for detecting, it is characterized in that, the method particularly as follows: several microphone collaborative works of controlling in sensor, each microphone adopt identical operating frequency and with identical work schedule respectively to external emission, receive detection signal；The signal of each microphone is overlapped mutually enhancing so that superposed signal can propagate larger distance, and meanwhile, in coverage, echo-signal is overlapped mutually enhancing so that echo-signal may identify which after receipt, judges。
2. automobile ultrasonic method for detecting as claimed in claim 1, it is characterised in that the work process of several described microphones is:
1) arranging N number of microphone, N >=2, including microphone 1, microphone 2 ... microphone N；
2) microphone 1, microphone 2 ... microphone N are identical operating frequency, and the single microphone detecting cycle is T；
3) microphone 1, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 1；
4) microphone 2, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 2；
5) microphone 3, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone 3；Microphone working forms afterwards by that analogy, can obtain:
6) microphone N, the t0 moment starts object detecting, and the t0+T moment completes the single detecting of microphone N；
In operationally, ultrasound wave launched by each microphone simultaneously, and the signal of each microphone is overlapped mutually enhancing, and simultaneously in coverage, echo-signal is overlapped mutually enhancing, the remote detecting ability of ultrasonic sensor is greatly improved with this。
3. an automobile ultrasonic sensor, it is characterized in that, including several microphones and electronic circuit cell, this electronic circuit cell controls each microphone respectively and adopts identical operating frequency and with identical work schedule to external emission, reception detection signal, the ultrasound wave making synchronized transmissions simultaneously is overlapped mutually enhancing, and the echo-signal of its formation is also overlapped mutually enhancing。
4. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that several described microphone combination are structure as a whole。
5. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that described sensor also includes casing assembly unit and the gum cover unit being mounted within, and casing assembly unit is provided with connector unit。
6. automobile ultrasonic sensor as claimed in claim 5, it is characterized in that, described microphone is fixedly installed in described casing assembly unit by gum cover unit, and described connector unit is the external hardware interface of described sensor, and described sensor externally transmits signal by described connector unit。
7. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that described microphone is driven and echo-signal is amplified, filters by described electronic circuit cell, calculation process, to draw detecting distance。
8. automobile ultrasonic sensor as claimed in claim 3, it is characterized in that, integrally disposed in described electronic circuit cell have some groups of ultrasonic emitting modules and ultrasound wave receiver module, and one group of ultrasonic emitting module, ultrasound wave receiver module control its work corresponding to a described microphone。
9. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that integrally disposed in described electronic circuit cell have single-chip microcomputer。
10. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that integrally disposed in described electronic circuit cell have power module and communication module, and described sensor externally carries out signal transmission by described communication module。
11. automobile ultrasonic sensor as claimed in claim 10, it is characterized in that, described covers disposed on sensor is equipped with 3 pins for external connection: pin PIN1, pin PIN2 and pin PIN4, or is provided with 4 pins: pin PIN1, pin PIN2, pin PIN3 and pin PIN4；Wherein, at described sensor internal, pin PIN1 is connected with described power module, and pin PIN4 is earth terminal, and pin PIN2 is connected with described communication module, or pin PIN2, pin PIN3 are connected with described communication module respectively。
12. automobile ultrasonic sensor as claimed in claim 3, it is characterised in that when described sensor monitors the utilization of system blind spot detection sensor as automobile blind spot, described sensor and automobile reflector are set to one。
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| CN201610122775.5A CN105699978A (en) | 2016-03-04 | 2016-03-04 | Automobile supersonic wave detecting method and sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314327A (en) * | 2016-08-30 | 2017-01-11 | 陈武强 | Detection device and detection method of car ultrasonic blind area for preventing ground measuring error and misinformation |
| DE102023126492A1 (en) * | 2023-09-28 | 2025-04-03 | Valeo Schalter Und Sensoren Gmbh | Ultrasonic sensor device for a vehicle and its operation |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2747589Y (en) * | 2004-11-24 | 2005-12-21 | 黄军 | Probe for ultrasonic wave sensor |
| WO2007096758A2 (en) * | 2006-02-27 | 2007-08-30 | Meta System - S.P.A. | System and method for ultrasonic detection, particularly for applications on motor vehicles or the like. |
| CN102621553A (en) * | 2012-03-27 | 2012-08-01 | 法雷奥汽车内部控制（深圳）有限公司 | Method for positioning obstacle distance and assistant driving system adopting method |
| CN104251988A (en) * | 2013-06-25 | 2014-12-31 | 罗伯特·博世有限公司 | Angular-recognition radar sensor |
| CN204256166U (en) * | 2014-12-23 | 2015-04-08 | 宁波正洋汽车部件有限公司 | High Precision Automatic tuning radar for backing car |
| CN205038345U (en) * | 2015-10-20 | 2016-02-17 | 上海未来伙伴机器人有限公司 | Ultrasonic ranging device |
| CN205562798U (en) * | 2016-03-04 | 2016-09-07 | 陈武强 | Sensor is listened to car ultrasonic wave |
-
2016
- 2016-03-04 CN CN201610122775.5A patent/CN105699978A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2747589Y (en) * | 2004-11-24 | 2005-12-21 | 黄军 | Probe for ultrasonic wave sensor |
| WO2007096758A2 (en) * | 2006-02-27 | 2007-08-30 | Meta System - S.P.A. | System and method for ultrasonic detection, particularly for applications on motor vehicles or the like. |
| CN102621553A (en) * | 2012-03-27 | 2012-08-01 | 法雷奥汽车内部控制（深圳）有限公司 | Method for positioning obstacle distance and assistant driving system adopting method |
| CN104251988A (en) * | 2013-06-25 | 2014-12-31 | 罗伯特·博世有限公司 | Angular-recognition radar sensor |
| CN204256166U (en) * | 2014-12-23 | 2015-04-08 | 宁波正洋汽车部件有限公司 | High Precision Automatic tuning radar for backing car |
| CN205038345U (en) * | 2015-10-20 | 2016-02-17 | 上海未来伙伴机器人有限公司 | Ultrasonic ranging device |
| CN205562798U (en) * | 2016-03-04 | 2016-09-07 | 陈武强 | Sensor is listened to car ultrasonic wave |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106314327A (en) * | 2016-08-30 | 2017-01-11 | 陈武强 | Detection device and detection method of car ultrasonic blind area for preventing ground measuring error and misinformation |
| DE102023126492A1 (en) * | 2023-09-28 | 2025-04-03 | Valeo Schalter Und Sensoren Gmbh | Ultrasonic sensor device for a vehicle and its operation |
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