CN100510776C - Backing radar installations automatically correcting sensory element scanning area and method thereof - Google Patents
Backing radar installations automatically correcting sensory element scanning area and method thereof Download PDFInfo
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- CN100510776C CN100510776C CNB2006101279008A CN200610127900A CN100510776C CN 100510776 C CN100510776 C CN 100510776C CN B2006101279008 A CNB2006101279008 A CN B2006101279008A CN 200610127900 A CN200610127900 A CN 200610127900A CN 100510776 C CN100510776 C CN 100510776C
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Abstract
The invention relates to a reverse radar apparatus which automatically revises the scanning area of a sensor and a method thereof. The apparatus of the invention mainly comprises a central processing unit, a memory unit, an ultrasound emission and receiving module, a signal amplifying module and a caution module, wherein, the central processing unit is provided with default compensation value and critical distance in advance. The surrounding status is firstly recorded as initial sensing value when the reverse radar apparatus is started, and then the initial sensing value is compared with subsequent sensing value recorded by sensing the surrounding status when in reversion, if the subsequent sensing value is more than the sum of the initial sensing value and the compensation value, whether the actual distance between the barrier and the ultrasound sensors arranged at both sides of the car rear is larger than the critical distance is judged, and if the actual distance is larger, the compensation value is increased, so the reversion radar can sense the existence of barriers when barriers are closer to the ultrasound sensor, thus reducing the sensitivity of ultra sensors arranged at both sides of the car rear, and achieving the goal of avoiding the misoperation of reverse radar.
Description
Technical field
The present invention relates to a kind of radar for backing car, but particularly relate to a kind of method of astern radar device and installations automatically correcting sensory element scanning area of installations automatically correcting sensory element scanning area.
Background technology
The driver is safer stops more easily in order to make, on the general vehicle astern radar device is installed all generally at present, judge the accident whether rear has barrier to be caused because of difficult when stopping to reduce the driver, common radar for backing car is to use ultrasonic sensing method to launch ultrasonic to rear view of vehicle, and by whether receiving that reflection wave detects rear view of vehicle and whether has barrier to occur, in the ultrasonic traveling process if meet with barrier, then ultrasonic can be reflected, and by the ultrasonic sensing method reception, the transmission speed (340 meters of per seconds) according to sound wave calculates the actual range between barrier and the sensor again.
Yet general ultrasonic sensing method 32 is with the fan-shaped ultrasonic (as shown in Figure 4) that sends, but not it is semicircle, therefore the sweep limit of ultrasonic sensing method 32 blind area 320 must occur scanning and imperfect, if the scope with above-mentioned scanning blind area 320 reduces to minimum again, then must make ultrasonic sensing method 32 as far as possible to launch ultrasonic (as shown in Figure 5) near semicircle scope, only thus, ultrasonic sensing method 32 may be excessive because of sweep limit, thereby scan not barrier in the car body dead astern, and then send the barrier warning, cause the driver to judge by accident.
For addressing the above problem, the ultrasonic sensing method that has manufacturers design to make new advances, the more aforementioned ultrasonic sensing method of its outside sweep limit is little, therefore this ultrasonic sensing method is located at both sides of the edge, car body rear, can avoid the object that is positioned at the car body both sides is produced induction; Only must be provided with the ultrasonic sensing method of two kinds of different models on a vehicle simultaneously, not only installation and maintenance is difficult for, and therefore cost of manufacture must improve.
This shows that above-mentioned existing astern radar device obviously still has inconvenience and defective, and demands urgently further being improved in product structure, manufacture method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product and method do not have appropriate structure and method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of astern radar device and method thereof of new installations automatically correcting sensory element scanning area, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Because the defective that above-mentioned existing astern radar device exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of astern radar device of new installations automatically correcting sensory element scanning area, can improve general existing astern radar device, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Fundamental purpose of the present invention is, overcome the defective that existing radar for backing car sensor sweep limit exists, and provide a kind of method of novel installations automatically correcting sensory element scanning area, technical matters to be solved is to make it that a kind of method of automatic revision radar for backing car sensor sweep limit is provided, it dynamically adjusts the sensitivity that is positioned at the sensor of both sides behind the car, commonly use the shortcoming of the easy misoperation of astern radar device with solution, thereby be suitable for practicality more.
Another object of the present invention is to, overcome the defective that existing astern radar device exists, and a kind of astern radar device of new installations automatically correcting sensory element scanning area is provided, technical matters to be solved is to make its installations automatically correcting sensory element scanning area, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.The method of a kind of automatic revision radar for backing car sensor sweep limit that proposes according to the present invention, be to be applied to it is characterized in that may further comprise the steps in the CPU (central processing unit) of an astern radar device: the offset and a critical distance of default a plurality of corresponding ultrasonic sensing methods; When astern radar device started, a plurality of ultrasonic sensing methods sent ultrasonic immediately and carry out the barrier sensing, and obtained the initial sensing result of a plurality of corresponding ultrasonic sensing methods; Each initial sensing result is saved as an initial sensing value respectively; Ultrasonic sensing method is proceeded the barrier sensing, and obtains the subsequent sense result of a plurality of corresponding ultrasonic sensing methods; Each subsequent sense result is saved as a subsequent sense value respectively; When the subsequent sense value of arbitrary ultrasonic sensing method correspondence during, promptly judge to sense barrier, and calculate the actual range between barrier and the ultrasonic sensing method greater than " initial sensing value+offset "; If barrier and the actual range between the ultrasonic sensing method of tailstock both sides then improve this offset greater than this critical distance, be positioned at the sensitivity of the ultrasonic sensing method of tailstock both sides with reduction.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The method of aforesaid automatic revision radar for backing car sensor sweep limit, wherein said CPU (central processing unit) can be the microprocessor that a model is ATMega8.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The astern radar device of a kind of installations automatically correcting sensory element scanning area that proposes according to the present invention is characterized in that this device mainly comprises: a CPU (central processing unit); One mnemon is to connect aforementioned CPU (central processing unit); One ultrasonic transmit/receive group, in order to emission and reception ultrasonic, it comprises a plurality of sensor driving circuits and a plurality of ultrasonic sensing method, wherein each ultrasonic sensing method is to see through the sensor driving circuit respectively to connect aforementioned CPU (central processing unit), drives ultrasonic sensing method by central processing unit controls and sends ultrasonic; One signal amplifies module, is to be connected between aforementioned CPU (central processing unit) and the ultrasonic transmit/receive group, amplifies in order to the signal that ultrasonic sensing method is received, and sends into CPU (central processing unit) again; One caution module is to connect aforementioned CPU (central processing unit), in order to prompting driver barrier message.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The astern radar device of aforesaid installations automatically correcting sensory element scanning area, wherein said ultrasonic transmit/receive group further comprises a multiplexer, connect this CPU (central processing unit), sensor driving circuit and signal and amplify module, select to send into signal by the switching of described multiplexer and amplify the signal that module amplifies.
The astern radar device of aforesaid installations automatically correcting sensory element scanning area, wherein said caution module comprise a display unit and sound caution unit, and wherein: this display unit is that the transmission display driving circuit connects aforementioned CPU (central processing unit); This sound caution unit is a hummer, and it sees through voice drive circuit and connects this CPU (central processing unit).
The astern radar device of aforesaid installations automatically correcting sensory element scanning area, wherein said mnemon is built in the CPU (central processing unit) in being.
The astern radar device of aforesaid installations automatically correcting sensory element scanning area, wherein said CPU (central processing unit) are to be the microprocessor of ATMega8 for a model.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, the invention provides a kind of astern radar device and method thereof of installations automatically correcting sensory element scanning area,
For reaching the major technique means that aforementioned purpose takes is that preceding method is applied to mainly comprise the following steps: in the CPU (central processing unit) of an astern radar device
The offset and a critical distance of default a plurality of corresponding ultrasonic sensing methods;
When astern radar device started, a plurality of ultrasonic sensing methods sent ultrasonic immediately and carry out the barrier sensing, and obtained the initial sensing result of a plurality of corresponding ultrasonic sensing methods;
Each initial sensing result is saved as an initial sensing value respectively;
Ultrasonic sensing method is proceeded the barrier sensing, and obtains the subsequent sense result of a plurality of corresponding ultrasonic sensing methods;
Each subsequent sense result is saved as a subsequent sense value respectively;
When the subsequent sense value of arbitrary ultrasonic sensing method correspondence during, promptly judge to sense barrier, and calculate the actual range between barrier and the ultrasonic sensing method greater than " initial sensing value+offset ";
If barrier and the actual range between the ultrasonic sensing method of tailstock both sides then improve this offset greater than this critical distance (for example 60 centimeters).
In addition, in order to achieve the above object, the present invention provides a kind of astern radar device of installations automatically correcting sensory element scanning area in addition, and it mainly comprises:
One CPU (central processing unit);
One mnemon is to connect aforementioned CPU (central processing unit);
One ultrasonic transmit/receive group, in order to emission and reception ultrasonic, it comprises a plurality of sensor driving circuits and a plurality of ultrasonic sensing method, wherein each ultrasonic sensing method is to see through the sensor driving circuit respectively to connect aforementioned CPU (central processing unit), drives ultrasonic sensing method by central processing unit controls and sends ultrasonic;
One signal amplifies module, is to be connected between aforementioned CPU (central processing unit) and the ultrasonic transmit/receive group, amplifies in order to the signal that ultrasonic sensing method is received, and sends into CPU (central processing unit) again;
One caution module is to connect aforementioned CPU (central processing unit), in order to prompting driver barrier message.
Aforementioned ultrasonic transmit/receive group further comprises a multiplexer, connects this CPU (central processing unit), sensor driving circuit and signal and amplifies module, selects to send into signal by the switching of described multiplexer and amplifies the signal that module amplifies.
Aforementioned memory cell can in be built in the CPU (central processing unit), this CPU (central processing unit) can be the microprocessor that a model is ATMega8.
Aforementioned caution module comprises a display unit and sound caution unit, wherein:
This display unit is to see through a display driver circuit to connect aforementioned CPU (central processing unit);
This sound caution unit is a hummer, and it sees through voice drive circuit and connects this CPU (central processing unit).
By technique scheme, the astern radar device of installations automatically correcting sensory element scanning area of the present invention and method thereof have following advantage at least:
Utilize above-mentioned technological means, can be by judging whether barrier is arranged in the critical distance, see through and improve the condition raising that offset order judgement has barrier, be equal to the sensitivity that has reduced ultrasonic sensing method, therefore reach and dynamically adjust the sensitivity that is positioned at the sensor of both sides behind the car, avoid because of the sensor sweep limit is wide excessively, thereby detect, cause the astern radar device misoperation not at the object at car body rear.
In sum, via as can be known above-mentioned, the present invention the invention relates to a kind of astern radar device and method thereof of installations automatically correcting sensory element scanning area, its device mainly is to comprise a CPU (central processing unit), one mnemon, one ultrasonic transmit/receive group, one signal amplifies a module and a caution module, wherein CPU (central processing unit) is preset with offset and a critical distance, when starting, astern radar device earlier the ambient state record is become an initial sensing value, the subsequent sense value that the sensing ambient state is write down when relatively moveing backward is made comparisons with initial sensing value, when subsequent sense value during greater than " initial sensing value+offset ", whether disturbance in judgement thing and the actual range between the ultrasonic sensing method of tailstock both sides be greater than critical distance, if then improve offset, therefore must more close ultrasonic sensing method can to make radar for backing car detect be that the barrier existence is arranged to barrier, to reduce the sensitivity of tailstock both sides ultrasonic sensing method, reach the purpose of avoiding the radar for backing car misoperation.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure, method or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing astern radar device and sensor sweep limit thereof have the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the calcspar of astern radar device of the present invention.
Fig. 2 is an embodiment circuit diagram of astern radar device of the present invention.
Fig. 3 is the process flow diagram of method of the present invention.
Fig. 4 is a sweep limit synoptic diagram of commonly using the ultrasonic sensing method of astern radar device.
Fig. 5 is the sweep limit synoptic diagram of the ultrasonic sensing method of another astern radar device.
10: CPU (central processing unit) 20: mnemon
30: ultrasonic transmit/receive group 31: sensor driving circuit
32,321,322,323,324: ultrasonic sensing method
320: scanning blind area 33: multiplexer
40: signal amplifies module 50: the caution module
511: display unit 512: display driver circuit
521: voice drive circuit 522 hummers
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, astern radar device and its embodiment of method, structure, method, step, feature and the effect thereof of the installations automatically correcting sensory element scanning area that foundation the present invention is proposed, describe in detail as after.
About a preferred embodiment of the present invention, see also Fig. 1 and shown in Figure 2, radar for backing car of the present invention comprises that a CPU (central processing unit) 10, a mnemon 20, a ultrasonic transmit/receive group 30, a signal amplify a module 40 and a caution module 50.
This CPU (central processing unit) 10 is processing maincenters of the present invention, is that employing one model is the microprocessor (as shown in Figure 2) of ATMega8 in the present embodiment, and it contains the memory body of 1kb.This mnemon 20 is to connect aforementioned CPU (central processing unit) 10, is used for the access digital date, and in the present embodiment, described mnemon 20 is the memory body that the ATMega8 microprocessor includes.
This ultrasonic transmit/receive group 30 be in order to emission with receive ultrasonic, see also the shown in Figure 2ly, it comprises four sensor driving circuits 31, four ultrasonic sensing methods 321,322,323,324 in the present embodiment, and a multiplexer 33, wherein:
These sensor driving circuits 31 mainly are to comprise an electric crystal Q1～Q4 and a transformer T1～T4 respectively, wherein the base stage of electric crystal Q1～Q4 is the 13rd, 14,16 and 15 pins that connect the ATMega8 microprocessor respectively, after sending the pulse wave signal by CPU (central processing unit) 10, amplify through electric crystal Q1～Q4 and transformer T1～T4 again;
These ultrasonic sensing methods 321,322,323,324, be to see through a sensor driving circuit 31 respectively to connect aforementioned CPU (central processing unit) 10, removing can be by the pulse wave signal controlling and driving ultrasonic sensing method 321,322,323 after electric crystal Q1～Q4 and transformer T1～T4 amplification, 324, send outside the ultrasonic, also can receive the ultrasonic that is reflected by barrier, to produce a reflection signal;
This multiplexer 33 is the 9th and 10 pins and the sensor driving circuits 31 that connect this ATMega8 microprocessor.
It is to connect the 24th pin of aforementioned ATMega8 microprocessor and the multiplexer 33 of ultrasonic transmit/receive group 30 that this signal amplifies module 40, switching by aforementioned multiplexer 33 is selected, with ultrasonic sensing method 321,322,323,324, received reflection signal is sent into described signal and is amplified module 40 amplifications, sends into CPU (central processing unit) 10 again and handles, in the present embodiment, see also shown in second figure, it mainly is by three 0P amplifier U1C that this signal amplifies module 40, U1D and U1A constitute, by amplifier U1C with ultrasonic sensing method 321,322,323,324, after the reflection signal that receives amplifies, deliver to the bandpass filter filtering noise information that constitutes by amplifier U1D and resistance R 5 and capacitor C 8 after, to reflect signal by amplifier U1A again and amplify once more, after diode D3 rectification, send in the CPU (central processing unit) 10.
This caution module 50 is to connect aforementioned CPU (central processing unit) 10, in order to prompting driver barrier message, see also shown in first and two figure, in the present embodiment, described caution module 50 comprises a display unit 511 and sound caution unit, wherein this display unit 511 is to see through the 30th and 31 pins that a display driver circuit 512 connects the ATMega8 microprocessor, and this sound caution unit is a hummer 522, and it sees through the 1st and 12 pins that voice drive circuit 521 connects the ATMega8 microprocessor.
Automatically revise the method for radar for backing car sensor sweep limit in addition about the present invention, be to be applied in the aforementioned CPU (central processing unit) 10, mainly be to utilize ultrasonic will be directly proportional with the size of barrier to be the basis by the ultrasonic energy after the barrier reflection, barrier is big more, the ultrasonic energy that is reflected is also just big more, therefore see also shown in the 3rd figure, it comprises the following steps:
Default earlier four offsets and a critical distance 100, wherein each offset is the corresponding ultrasonic sensing method 321,322,323,324 of difference, and a preferred embodiment of this critical distance is 60 centimeters;
When astern radar device started, each ultrasonic sensing method 321,322,323,324 sent ultrasonic immediately and carries out barrier sensing 101;
Each ultrasonic sensing method 321,322,323,324 receives the ultrasonic that is reflected by barrier, obtaining a plurality of corresponding ultrasonic sensing methods 321,322,323,324, initial sensing result 102;
By this CPU (central processing unit) 10 each initial sensing result is converted to an initial sensing value respectively and deposits in the mnemon 20 103 in;
Each ultrasonic sensing method 321,322,323,324 continues to send ultrasonic and carries out the barrier sensing, and receives the ultrasonic that is reflected by barrier, obtaining a plurality of corresponding ultrasonic sensing methods 321,322,323,324, subsequent sense result 104;
By this CPU (central processing unit) 10 each subsequent sense result is converted to a subsequent sense value respectively and deposits in the mnemon 20 105 in;
Judge ultrasonic sensing method 321,322,323,324, whether corresponding subsequent sense value is greater than " initial sensing value+offset " 106;
If not, then judgement does not sense barrier 107;
If then judge to sense barrier 108;
Again when judgement senses barrier, according to the transmission speed (340 meters of per seconds) and the ultrasonic sensing method 321,322,323 of sound wave, 324, send and receive the supersonic time interval to calculate barrier and ultrasonic sensing method 321,322,323,324, between actual range 109;
Whether disturbance in judgement thing and the actual range between the ultrasonic sensing method of tailstock both sides be greater than this critical distance 110;
If not, then CPU (central processing unit) 10 drives 50 couples of drivers of caution module and gives a warning 111;
If, then by improving offset 112, make " initial sensing value+offset " to become big, so need the bigger subsequent sense value can be greater than " initial sensing value+offset ", promptly the volume of barrier must bigger or more close car body, is ultrasonic sensing method 321 therefore, 322,323,324, sensitivity be lowered.
About the principle of work of astern radar device of the present invention, be as described below:
Before vehicle will be moveed backward, its should and barrier between be have one more remote, therefore can be reflected by barrier and ultrasonic less, promptly initial sensing value can be less;
After beginning reversing, because and the distance between the barrier may be more and more approaching, barrier is also just increasing for the relative size of the tailstock, therefore it is also increasing to reflect supersonic area, so this subsequent sense value may be greater than the original state value that is write down before the reversing, and must add that an offset rear assert have barrier to exist greater than the original state value by definition subsequent sense value, to avoid the generation of error;
When the actual range between barrier and the both sides ultrasonic sensing method during greater than 60 centimeters, represent that promptly barrier may be the outside that is positioned at tailstock both sides, can reduce the sensitivity of astern radar device, to avoid cause misoperation by improving offset this moment.
Though only the present invention discloses in the aforementioned embodiment, is not limited in content mentioned in the previous embodiment, any variation and the modification done without departing from the spirit and scope of the present invention all belong to protection scope of the present invention.
From the above, the ambient state when astern radar device of the present invention is moveed backward by first start-of-record, the ambient state comparison of sensing exists to have judged whether barrier during again with reversing; When confirming that tailstock both sides there is no more approaching barrier, promptly revise the ultrasonic sensing method sensor sweep limit of being located at tailstock both sides automatically, to reduce its sensitivity, and then reach and avoid astern radar device because of sensing the barrier that is positioned at the tailstock both sides outsides, mislead the driver and produce misoperation.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (7)
1, a kind of method of automatic revision radar for backing car sensor sweep limit is to be applied to it is characterized in that may further comprise the steps in the CPU (central processing unit) of an astern radar device:
The offset and a critical distance of default a plurality of corresponding ultrasonic sensing methods;
When astern radar device started, a plurality of ultrasonic sensing methods sent ultrasonic immediately and carry out the barrier sensing, and obtained the initial sensing result of a plurality of corresponding ultrasonic sensing methods;
Each initial sensing result is saved as an initial sensing value respectively;
Ultrasonic sensing method is proceeded the barrier sensing, and obtains the subsequent sense result of a plurality of corresponding ultrasonic sensing methods;
Each subsequent sense result is saved as a subsequent sense value respectively;
When the subsequent sense value of arbitrary ultrasonic sensing method correspondence during, promptly judge to sense barrier, and calculate the actual range between barrier and the ultrasonic sensing method greater than " initial sensing value+offset ";
If barrier and the actual range between the ultrasonic sensing method of tailstock both sides then improve this offset greater than this critical distance, be positioned at the sensitivity of the ultrasonic sensing method of tailstock both sides with reduction.
2, the method for automatic revision radar for backing car sensor sweep limit according to claim 1 is characterized in that wherein said CPU (central processing unit) can be the microprocessor that a model is ATMega8.
3. the astern radar device of an installations automatically correcting sensory element scanning area is characterized in that this device mainly comprises:
One CPU (central processing unit);
One mnemon is to connect aforementioned CPU (central processing unit);
One ultrasonic transmit/receive group, in order to emission and reception ultrasonic, it comprises a plurality of sensor driving circuits and a plurality of ultrasonic sensing method, wherein each ultrasonic sensing method is to see through the sensor driving circuit respectively to connect aforementioned CPU (central processing unit), drives ultrasonic sensing method by central processing unit controls and sends ultrasonic;
One signal amplifies module, is to be connected between aforementioned CPU (central processing unit) and the ultrasonic transmit/receive group, amplifies in order to the signal that ultrasonic sensing method is received, and sends into CPU (central processing unit) again;
One caution module is to connect aforementioned CPU (central processing unit), in order to prompting driver barrier message.
4, the astern radar device of installations automatically correcting sensory element scanning area according to claim 3, it is characterized in that wherein said ultrasonic transmit/receive group further comprises a multiplexer, connect this CPU (central processing unit), sensor driving circuit and signal and amplify module, select to send into signal by the switching of described multiplexer and amplify the signal that module amplifies.
5, the astern radar device of installations automatically correcting sensory element scanning area according to claim 3 is characterized in that wherein said caution module comprises a display unit and sound caution unit, wherein:
This display unit is that the transmission display driving circuit connects aforementioned CPU (central processing unit);
This sound caution unit is a hummer, and it sees through voice drive circuit and connects this CPU (central processing unit).
6,, it is characterized in that wherein said mnemon is built in the CPU (central processing unit) in being according to the astern radar device of each described installations automatically correcting sensory element scanning area in the claim 3 to 5.
7, the astern radar device of installations automatically correcting sensory element scanning area according to claim 6 is characterized in that wherein said CPU (central processing unit) is is the microprocessor of ATMega8 for a model.
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| CN101782646B (en) * | 2009-01-19 | 2012-08-29 | 财团法人工业技术研究院 | All-round environment sensing system and method |
| DE102009027842A1 (en) | 2009-07-20 | 2011-01-27 | Robert Bosch Gmbh | Ultrasonic measuring device and method for evaluating an ultrasonic signal |
| CN109696665B (en) * | 2018-12-28 | 2021-02-19 | 百度在线网络技术（北京）有限公司 | Method, device and equipment for processing measurement data of ultrasonic sensor |
| CN113050099A (en) * | 2019-12-27 | 2021-06-29 | 广州汽车集团股份有限公司 | Automatic parking obstacle distance detection method, system and detection device thereof |
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| CN2134662Y (en) * | 1992-08-07 | 1993-05-26 | 辽河石油勘探局通信公司 | Automotive rear vision blind area object detector |
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Effective date of registration: 20140221 Address after: 519000 Guangdong city of Zhuhai province Jinding town High-tech Zone Kwun Tong Sand Hill Industrial Zone, 1 factory buildings Patentee after: ZHUHAI COLIGEN CO., LTD. Address before: Taipei City, Taiwan, China Patentee before: Li Shixiong |
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Address after: 519000 Guangdong city of Zhuhai province Jinding town High-tech Zone Kwun Tong Sand Hill Industrial Zone, 1 factory buildings Patentee after: ZHUHAI COLIGEN CO., LTD. Address before: 519000 Guangdong city of Zhuhai province Jinding town High-tech Zone Kwun Tong Sand Hill Industrial Zone, 1 factory buildings Patentee before: ZHUHAI COLIGEN CO., LTD. |