CN204990437U - Drive recorder - Google Patents
Drive recorder Download PDFInfo
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- CN204990437U CN204990437U CN201520586355.3U CN201520586355U CN204990437U CN 204990437 U CN204990437 U CN 204990437U CN 201520586355 U CN201520586355 U CN 201520586355U CN 204990437 U CN204990437 U CN 204990437U
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Abstract
The embodiment of the utility model relates to a drive recorder, including microwave detecting element (110), photologging unit (120) and main control unit (200), wherein microwave detecting element (110) are configured as the existence that detects the removal thing around the vehicle based on the comparative result that removes produced sensing signal of thing and noise threshold, and main control unit (200) based on the testing result and the assay to writing down the picture of microwave detecting element (110), control the opening or closing of photologging unit (120). Through the utility model discloses a drive recorder's of embodiment use can improve the detection precision, saves electric power.
Description
Technical field
Embodiment of the present utility model relates to a kind of drive recorder.
Background technology
Drive recorder has become more and more important in the responsibility analysis of road traffic accident, but, many car owners also wish to avoid it to like, and car is destroyed when stopping, and therefore in parking situation, common drive recorder will continue through the difference of image ratio compared with monitoring scene.But detect along with high power consumption by the motion of video camera, this is very large burden concerning the power supply of drive recorder.Therefore, radar is introduced in drive recorder, only when detections of radar is to the existing of motive objects, video camera just starts record, but when by storing cycle in noisy street or rain, blow time, because radar is to the sensitivity of noise, make video camera be in open mode all the time, cause power supply to be exhausted very soon.
Utility model content
In view of the defect that above-mentioned prior art exists, the object of embodiment of the present utility model is to provide a kind of drive recorder, this drive recorder is raining, when blowing or by lasting startup, thus can not ensure the reasonable working time of drive recorder in parking when busy street.
According to one side of the present utility model, a kind of drive recorder is provided, comprises microwave detecting unit, photologging unit and main control unit;
Wherein said microwave detecting unit is configured to the existence of the motive objects of the comparative result detection vehicle periphery of induced signal and the noise threshold produced based on motive objects; And
Described main control unit, based on the testing result of described microwave detecting unit, controls opening or closing of described photologging unit.
In an embodiment of the present utility model, described noise threshold is preset by user, or determines according to the ground unrest in last cycle.
In another embodiment of the present utility model, described microwave detecting unit is configured to the peak value of the amplitude of the induced signal produced based on motive objects and described noise threshold compares; Wherein said noise threshold is that the induced signal produced according to the ground unrest in last cycle is determined.
In another embodiment of the present utility model, described noise threshold depends on amplitude mean value and the signal closeness of the induced signal produced by the ground unrest in described last cycle.
In another embodiment of the present utility model, described noise threshold is set as equaling described amplitude mean value or being greater than described amplitude mean value according to described signal closeness.
In another embodiment of the present utility model, described signal closeness judges according to the multiple comparative result of described amplitude mean value and amplitude maximum; Wherein said multiple is less than 1.
In another embodiment of the present utility model, described ground unrest comprises neighbourhood noise and culture noise.
In another embodiment of the present utility model, described neighbourhood noise rocks by rainfall or branch the noise caused; Described culture noise moves by the people/vehicle of vehicle periphery the noise caused.
In another embodiment of the present utility model, described main control unit is configured to: when the described induced signal produced based on motive objects exceedes described noise threshold, open described photologging unit and carry out people/vehicle mobility detect based on to the analysis of the picture recorded, when based on the analysis of the picture to described record, described main control unit does not detect that people/vehicle moves, described photologging unit is closed after continuing to be recorded to the schedule time.
In another embodiment of the present utility model, described drive recorder also comprises the count-down device forbidding opening described photologging unit; Described count-down device is configured to when not making zero, even if the described induced signal produced based on motive objects exceedes described noise threshold, still forbids opening described photologging unit.
According to another aspect of the present utility model, a kind of drive recorder is provided, comprises microwave detecting unit, photologging unit and main control unit;
Wherein said microwave detecting unit is configured to the existence of the motive objects detecting vehicle periphery;
Described main control unit is configured to the testing result based on described microwave detecting unit, controls opening or closing of described photologging unit;
Wherein said main control unit is configured to: when described microwave detecting unit detects existing of motive objects, open described photologging unit and carry out people/vehicle mobility detect based on to the analysis of the picture recorded, when based on the analysis of the picture to described record, described main control unit does not detect that people/vehicle moves, described photologging unit is closed after continuing to be recorded to the schedule time.
Embodiment of the present utility model adopts the noise threshold of adaptive change as with reference to value, decreases the error detection result of the microwave detecting unit caused by ground unrest; And adopt photologging unit to carry out people/car mobility detect further, thus distinguish the people/car etc. of movement from " vision ", thus under parked state, make drive recorder reasonably work, and save electric power.
Accompanying drawing explanation
Present general will only be described embodiment of the present utility model by example with reference to accompanying drawing, and wherein similar parts represent with identical Reference numeral, in accompanying drawing:
Fig. 1 is the block diagram of the drive recorder according to exemplary embodiment of the present utility model; And
Fig. 2 is the workflow diagram of the drive recorder according to an illustrative embodiments of the present utility model.
Embodiment
Below with reference to exemplary embodiment, principle of the present utility model and spirit are described.Should be appreciated that describing these embodiments is only used to enable those skilled in the art understand better and then realize the utility model, and not limit scope of the present utility model by any way.
Fig. 1 is the block diagram of the drive recorder according to exemplary embodiment of the present utility model.As shown in Figure 1, according to embodiment of the present utility model, drive recorder comprises main control unit 200 and each is all coupled to microwave detecting unit 110 and the photologging unit 120 of main control unit 200.
Microwave detecting unit 110 is configured to the existence of the motive objects of the comparative result detection vehicle periphery of induced signal and the noise threshold produced based on motive objects.Particularly, microwave detecting unit 110 comprises microwave remote sensor, in one example, microwave remote sensor can comprise microwave oscillator, emitting antenna, receiving antenna, frequency mixer, wave detector, amplifier etc., the high-frequency microwave signal that microwave oscillator produces is via the outside directional transmissions of emitting antenna, in the sensing range of microwave remote sensor (vehicle periphery is around in the class cone-shaped body of drive recorder), when having motive objects to move, the microwave signal sensed is input to the microwave signal mixing that frequency mixer and microwave oscillator produce by receiving antenna, the induced signal of lower frequency is exported by wave detector, the induced signal that this low frequency induction signal is amplified through amplifier, the translational speed of the frequency response motive objects of this induced signal, the size of amplitude reaction motive objects and distance.In an embodiment of the present utility model, microwave detecting unit 110 also comprises comparer, and the induced signal that this comparer exports amplifier and noise threshold compare, thus detect the existence of the motive objects of vehicle periphery.
Main control unit 200 is based on the testing result of described microwave detecting unit 110, control opening or closing of photologging unit 120, such as, when microwave detecting unit 110 detects existing of the motive objects of vehicle periphery, main control unit 200 controls photologging unit 120 and opens, when microwave detecting unit 110 do not detect the motive objects of vehicle periphery time, main control unit 200 controls photologging unit 120 and is in closed condition.
In one embodiment, the noise threshold of microwave detecting unit 110 can be that user presets, or determines according to the ground unrest in last cycle.Particularly, ground unrest comprises neighbourhood noise and culture noise; Wherein neighbourhood noise rocks by rainfall or branch the noise caused; Culture noise moves by the people/vehicle of vehicle periphery the noise caused.Particularly, such as, when rainfall, numerous raindrop are detected by microwave detecting unit 110 as motive objects, thus soil boy structure noise; When vehicle is in noisy street, people or the vehicle of constantly movement are detected by microwave detecting unit 110, thus form culture noise; Even there is more complicated situation, such as, vehicle is when being parked in street rainy day, and people or the vehicle of raindrop and movement all can be detected by microwave detecting unit 110, thus the superposition of soil boy structure noise and culture noise.
In order to avoid the accuracy in detection of ground unrest to microwave detecting unit 110 has a negative impact, can according to the ground unrest determination noise threshold in last cycle, then the induced signal that the motive objects of this noise threshold and current period produces is compared, result based on the comparison, whether the motive objects except ground unrest that microwave detecting unit 110 detects vehicle periphery exists.Obviously, because noise threshold is determined according to the ground unrest in last cycle, thus avoid microwave detecting unit because of rainfall, blow, people/car is movable and report the existence of motive objects by mistake frequently.In other words, when the induced signal only produced when motive objects is greater than threshold value, microwave detecting unit just detects the existence of motive objects.
In one embodiment, microwave detecting unit 110 is configured to the peak value of the amplitude of the induced signal produced based on motive objects and noise threshold compares.Particularly, maximal value in the amplitude of the induced signal that motive objects one or more in current period produces by microwave detecting unit 110, namely the noise threshold of peak value and current period compares, and the noise threshold of current period is the induced signal produced according to the ground unrest in last cycle determines.In one example, noise threshold depends on amplitude mean value and the signal closeness of the induced signal produced by the ground unrest in last cycle, wherein this noise threshold is set as equaling amplitude mean value or being greater than amplitude mean value according to signal closeness, and signal closeness judges according to the multiple comparative result of amplitude mean value and amplitude maximum, wherein said multiple is less than 1.For example, mean value A1, the maximal value of the amplitude of the induced signal that the motive objects in the upper cycle produces are A
maximumif, A1>0.8 A doubly
maximum, illustrate that in environment, motive objects density is high, that is, signal closeness is large, then the noise threshold in current period is set as the A1 of 1.5 times; Otherwise illustrate that in environment, motive objects density is low, namely signal closeness is little, then the noise threshold in current period is A1.Then, in current period, if the peak value that people moves the amplitude of produced induced signal is A2, and when A2 is greater than noise threshold (A1 or 1.5A1) in current period, microwave detecting unit 120 detects the existence of motive objects around.
Main control unit 200 is configured to: when the induced signal produced based on motive objects exceedes noise threshold, opens photologging unit 120 and carries out photologging, and carries out people/vehicle mobility detect based on the analysis of the picture to photologging alternatively.In one embodiment, photologging unit 120 such as can comprise lens group, the module of optical sensor and image processing module, photologging unit 120 pairs of pictures carry out record, based on the analysis of the picture to record, main control unit 200 judges whether motive objects is people/vehicle, and described picture analysis is such as based on the contrast of multiple image.In one embodiment, at main control unit 200 based on when not detecting that people/vehicle moves to the analysis of the picture recorded, such as motive objects is raindrop, leaf etc., and described photologging unit 120 is closed after continuing to be recorded to the schedule time; At main control unit 200 based on when detecting that people/car moves to the analysis of the picture recorded, continue to open photologging unit 120.
In an embodiment of the present utility model, drive recorder also comprises the count-down device forbidding opening photologging unit 120; When this count-down device does not make zero, even if the induced signal produced based on motive objects exceedes noise threshold, still forbid opening photologging unit 120.
In another embodiment of the present utility model, drive recorder also comprises the vehicle-state determination component 130 be made up of vehicle power supply detecting unit 132, acceleration transducer 134 and baroceptor 136, for judging vehicle whether parked state, and drive recorder is adjusted to parking monitoring mode.
In another embodiment of the present utility model, drive recorder also comprises display unit 150, I/O160,2G/3G/4G communication module 170 and storage unit 140.
In an embodiment of the present utility model, described main control unit 200 controls opening or closing of photologging unit 120 based on the testing result of described microwave detecting unit 110; Wherein main control unit 200 is configured to: when microwave detecting unit 110 detects existing of motive objects, open photologging unit 120 and carry out people/vehicle mobility detect based on to the analysis of the picture recorded, do not detect that people/vehicle moves at described main control unit based on to the analysis of the picture recorded, described photologging unit 120 is closed after continuing to be recorded to the schedule time.
Fig. 2 is the workflow diagram of the drive recorder according to an illustrative embodiments of the present utility model.This embodiment adopts vehicle power supply detecting unit 132 pairs of vehicle-states to judge.First, in step 310, any voltage fluctuation of vehicle power supply is detected by vehicle power supply detecting unit 132, then vehicle-state is judged, if judge that vehicle is non-parked state in the step 310, and then can in step 450, learn that vehicle motor is starting state, then close microwave detecting unit in step 460, then start photologging unit in step 470.Otherwise, if by judging that vehicle is at parked state in the step 310, then can learn that vehicle motor is closed in step 320, then microwave detecting unit is opened in a step 330, start microwave detecting pattern, judge whether count-down device makes zero (namely forbidding photologging=0 minute) in step 340, if judge that count-down device does not make zero, then return step 340 to rejudge, if judge that count-down device makes zero, then before the existence being detected motive objects by microwave detecting unit, the noise threshold of microwave detecting unit is determined in step 350, then judge whether microwave detecting unit detects motive objects in step 360, if motive objects do not detected, then return step 340, if motive objects detected, then open photologging unit in step 370 and start photologging, start mobile human/car test in step 380 to survey simultaneously, in step 390, if detect that people/car moves, then continue photologging predetermined time (such as one or a few minutes) in step 400, if do not detect that people/car moves, then count-down device is forbidden photologging a period of time (such as 10 minutes), and start countdown (step 410), after photologging unit continues the recording scheduled time (such as 60 seconds) (step 420) subsequently, close photologging unit (step 430).
The utility model adopts the noise threshold according to ground unrest change, reduce rainfall, blow, noisy street is to the adverse effect of the accuracy of detection of microwave detecting unit, and decrease the opening time of photologging unit because of the motive objects of inhuman/vehicle by people/vehicle mobility detect, thus reduce the power consumption of drive recorder generally.
Give instructions of the present utility model for the object illustrated and describe, but it is not intended to be exhaustive or be limited to the utility model of disclosed form.It may occur to persons skilled in the art that a lot of amendment and variant.
Claims (10)
1. a drive recorder, is characterized in that, comprises microwave detecting unit (110), photologging unit (120) and main control unit (200);
Wherein said microwave detecting unit (110) is configured to the comparative result of induced signal and the noise threshold produced based on motive objects, detects the existence of the motive objects of vehicle periphery; And
Described main control unit (200) is configured to the testing result based on described microwave detecting unit (110), controls opening or closing of described photologging unit (120).
2. drive recorder according to claim 1, is characterized in that, described noise threshold is preset by user, or determines according to the ground unrest in last cycle.
3. drive recorder according to claim 1, is characterized in that, described microwave detecting unit (110) is configured to the peak value of the amplitude of the induced signal produced based on described motive objects and described noise threshold compares; Wherein said noise threshold is that the induced signal produced according to the ground unrest in last cycle is determined.
4. drive recorder according to claim 3, is characterized in that, described noise threshold depends on amplitude mean value and the signal closeness of the induced signal produced by the ground unrest in described last cycle.
5. drive recorder according to claim 4, is characterized in that, described noise threshold is set as equaling described amplitude mean value or being greater than described amplitude mean value according to described signal closeness.
6. drive recorder according to claim 5, is characterized in that, described signal closeness judges according to the multiple comparative result of described amplitude mean value and amplitude maximum; Wherein said multiple is less than 1.
7. drive recorder according to claim 6, described ground unrest comprises neighbourhood noise and culture noise.
8. the drive recorder according to any one in claim 1 to 7, is characterized in that, described main control unit (200) is configured to:
When the described induced signal produced based on motive objects exceedes described noise threshold, open described photologging unit (120), and carry out people/vehicle mobility detect based on the analysis of the picture to record; And
When based on the analysis of the picture to described record, described main control unit does not detect that people/vehicle moves, close after described photologging unit (120) continues to be recorded to the schedule time.
9. drive recorder according to claim 8, is characterized in that, described drive recorder also comprises the count-down device forbidding opening described photologging unit (120);
Described count-down device is configured to when not making zero, even if the described induced signal produced based on motive objects exceedes described noise threshold, still forbids opening described photologging unit (120).
10. a drive recorder, is characterized in that, comprises microwave detecting unit (110), photologging unit (120) and main control unit (200);
Wherein said microwave detecting unit (110) is configured to the existence of the motive objects detecting vehicle periphery;
Described main control unit (200), based on the testing result of described microwave detecting unit (110), controls opening or closing of described photologging unit (120);
Wherein said main control unit (200) is configured to:
When described microwave detecting unit (110) detects existing of motive objects, open described photologging unit (120), and carry out people/vehicle mobility detect based on the analysis of the picture to record, and
When based on the analysis of the picture to described record, described main control unit does not detect that people/vehicle moves, close after described photologging unit (120) continues to be recorded to the schedule time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586355.3U CN204990437U (en) | 2015-08-06 | 2015-08-06 | Drive recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520586355.3U CN204990437U (en) | 2015-08-06 | 2015-08-06 | Drive recorder |
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| Publication Number | Publication Date |
|---|---|
| CN204990437U true CN204990437U (en) | 2016-01-20 |
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| CN201520586355.3U Active CN204990437U (en) | 2015-08-06 | 2015-08-06 | Drive recorder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109478366A (en) * | 2016-07-27 | 2019-03-15 | 罗伯特·博世有限公司 | For monitoring the scheme in the parking lot of automobile-use |
| CN109564732A (en) * | 2016-07-29 | 2019-04-02 | 罗伯特·博世有限公司 | For monitoring the scheme in the parking lot of automobile-use |
| CN111615718A (en) * | 2018-12-26 | 2020-09-01 | Jvc建伍株式会社 | Vehicle recording control device, vehicle recording control method, and program |
-
2015
- 2015-08-06 CN CN201520586355.3U patent/CN204990437U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109478366A (en) * | 2016-07-27 | 2019-03-15 | 罗伯特·博世有限公司 | For monitoring the scheme in the parking lot of automobile-use |
| CN109564732A (en) * | 2016-07-29 | 2019-04-02 | 罗伯特·博世有限公司 | For monitoring the scheme in the parking lot of automobile-use |
| CN111615718A (en) * | 2018-12-26 | 2020-09-01 | Jvc建伍株式会社 | Vehicle recording control device, vehicle recording control method, and program |
| CN111615718B (en) * | 2018-12-26 | 2022-04-01 | Jvc建伍株式会社 | Recording control device and method for vehicle, recording device for vehicle, and storage medium |
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