CN104284081A - Law enforcement recorder and control method thereof - Google Patents
Law enforcement recorder and control method thereof Download PDFInfo
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- CN104284081A CN104284081A CN201410204643.8A CN201410204643A CN104284081A CN 104284081 A CN104284081 A CN 104284081A CN 201410204643 A CN201410204643 A CN 201410204643A CN 104284081 A CN104284081 A CN 104284081A
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Abstract
The invention discloses a law enforcement recorder and a control method of the law enforcement recorder. The law enforcement recorder comprises a law enforcement recorder body, a camera, a control unit, a sound receiving device and a sound source locating module, wherein the sound receiving device is used for receiving sound within a specific frequency range; when the frequency of receiving the sound within the specific frequency range by the sound receiving device is greater than the set frequency, the control unit controls the sound source locating module to determine the sound source position of the sound within the specific frequency range; after the control unit controls the camera to rotate to the sound source position, the control units controls the camera to take a picture on the sound source position in a flashing mode by the set frequency. The law enforcement recorder can control the camera to rotate to the position highly related to a case for camera shooting according to the yelp on scene, and accordingly clear scene pictures are obtained to be used for later evidence. In addition, suspicious connected people can be tracked effectively, and therefore clear pictures are obtained to be used for later evidence.
Description
[technical field]
The present invention relates to law-enforcing recorder field, be specifically related to a kind of law-enforcing recorder and control method thereof.
[background technology]
Law-enforcing recorder is the important tool that police records spot, around the chest being often worn on police.The camera of existing law enforcement record is also often fixing; In addition, in order to obtain larger visual angle, to obtain the crime videograph in maximum magnitude, be all have larger visual angle usually, the videograph definition sometimes obtained is inadequate.
[summary of the invention]
Find through research, when spot is comparatively large, some part in the visual angle of law-enforcing recorder may be fuzzyyer, and the complexion of the case-involving people in these places and action also may be very fuzzy, in follow-up evidence obtaining, often lose good clue to solve the case; In addition, although the visual angle of law-enforcing recorder is enough large, the place that a lot of visual angle cannot cover often also is had.
In order to overcome the deficiencies in the prior art, making law-enforcing recorder can capture strong evidence in time, the invention provides a kind of law-enforcing recorder and control method thereof.
A kind of law-enforcing recorder, comprise law-enforcing recorder main body, camera and control unit, also comprise sound receiver and auditory localization module, described sound receiver is for receiving the sound in particular frequency range;
When the described sound receiver sound received in described particular frequency range is greater than set point number, control unit controls the sound source position that described auditory localization module determines the sound in described particular frequency range, described control unit controls after described camera turns to described sound source position, and described control unit controls described camera carries out set point number flash photographing to described sound source position.
In one embodiment,
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, described in a rear moment, certain face moves to the second place, and described control unit controls described camera and turns to described 3rd position and focus on certain face described.
In one embodiment,
Being in certain position at described camera carries out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if the previous moment recognizes certain face, a part for certain face described is only recognized in a rear moment, described control unit controls described camera and rotates to find certain face described, if again recognize certain face described, then certain face described is carried out to the flash photographing of set point number.
In one embodiment,
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, at a rear moment None-identified to certain face described, described control unit controls described camera carries out set point number flash photographing to described primary importance.
In one embodiment,
Being in certain position at described camera carries out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then described control unit controls described camera carries out set point number focusing flash of light shooting to certain face described.
In one embodiment,
According to the distance of described sound source position apart from described camera, described control unit controls described camera and focuses on described sound source position.
In one embodiment,
The photoflash lamp of described law-enforcing recorder is made up of multiple LED, is provided with plastics or the glass of the LED luminance Curve Design synthesized according to all LED, after making plastics described in the light transmission of described LED or glass, becomes uniform light outside described LED.Like this, the brightness in some original darker region can be made larger, or some can only improve the region of brightness originally by increasing LED quantity, by the way, can reduce some LED, the brightness that these regions obtain still can maintain original level.
Present invention also offers a kind of control method of described law-enforcing recorder, comprise the steps:
When the sound that sound receiver receives in particular frequency range is greater than set point number, control unit controls the sound source position that auditory localization module determines the sound in described particular frequency range, described control unit controls after described camera turns to described sound source position, and described control unit controls described camera carries out set point number flash photographing to described sound source position.
In one embodiment, also comprise the steps:
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, described in a rear moment, certain face moves to the second place, and described control unit controls described camera and turns to described 3rd position and focus on certain face described.
In one embodiment, also comprise the steps:
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, at a rear moment None-identified to certain face described, described control unit controls described camera carries out set point number flash photographing to described primary importance.
In one embodiment, also comprise the steps:
According to the distance of described sound source position apart from described camera, described control unit controls described camera and focuses on described sound source position.
In certain embodiments, law-enforcing recorder can according to the cry at scene, controls camera and turns to the very related position with merit and take pictures, thus obtains that scene photograph is used for follow-up evidence obtaining very clearly; In addition, can effectively follow the trail of comparatively suspicious affiliated person, thus obtain photograph is used for follow-up evidence obtaining comparatively clearly.
[embodiment]
In one embodiment, law-enforcing recorder comprises law-enforcing recorder main body, camera, control unit, sound receiver and auditory localization module, camera is installed in rotation on camera, and described sound receiver is for receiving the sound in particular frequency range.
In some cases, relate to the spot of fighting, both parties or in many ways in the process of fighting, often send continuous print yell and shriek, the frequency of these shrieks is usually high than the frequency of the normal sound of people, such as, reach 1KHz even higher.
Thus, (now probably occur fighting when the described sound receiver sound received in described particular frequency range is greater than set point number, therefore camera is needed to capture this transient action in time), control unit controls described auditory localization module work, according to auditory localization algorithm, auditory localization module determines that the sound source position of the sound in described particular frequency range (has a lot of auditory localization algorithm at present, just repeat no more at this), then described control unit controls described camera and turns to described sound source position, control described camera carries out set point number flash photographing to described sound source position, to obtain the on-the-spot photo record of fighting that this position may occur.Otherwise the merit law-enforcing recorder of some position generation be in outside camera visual angle often cannot obtain.
In some cases, can avoid when some party sees the law-enforcing recorder worn police front, to escape from the angular field of view of its camera, these people may have larger association with merit.Therefore, be in certain position at described camera and carry out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If the previous moment recognizes certain face described and is in primary importance, and certain face described in recognizing in a rear moment moves to the second place, then described control unit controls described camera and turns to described 3rd position, to focus on certain face described.Like this, namely can effectively effectively follow the trail of the party of larger association, and its comparatively clear photograph is descended in shooting, for evidence obtaining provides favourable evidence later.
In a upper aforementioned situation, some party may be in the edge, visual angle of camera, and after the action avoided completes, this party's face part is in the angular field of view of camera, and another part may be in outside the angular field of view of camera.
Thus, being in certain position at described camera carries out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if the previous moment recognizes certain face, a part for certain face described is only recognized in a rear moment, described control unit controls described camera and rotates to find certain face described, if again recognize certain face described, then certain face described is carried out to the flash photographing of set point number.Certainly, at this time the rotation direction of camera can be rotate, because this possibility is larger towards from the direction, edge close to the original present position of this face.Thus, comparatively suspicious this face comparatively clear photograph can be obtained.
In other cases, some party sees the camera of law-enforcing recorder, and the face often covering oneself is hidden, but other features such as figure and features, behavior of these parties remain important clue.
Thus, be in certain position at described camera and carry out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, at a rear moment None-identified to certain face described, then illustrate that face probably covers by this party, now, described control unit controls described camera carries out set point number flash photographing to described primary importance, to obtain other information clearly of this party.
In some cases, being in certain position at described camera carries out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then described control unit controls described camera carries out set point number focusing flash of light shooting to certain face described, and face is used for follow-up evidence obtaining comparatively clearly can to obtain scene like this.
When auditory localization module navigates to this sound source position, according to the distance of described sound source position apart from described camera, described control unit controls described camera and focuses on described sound source position, to obtain the clear pictures of this position.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to the scope of patent protection that the present invention is determined by submitted to claims.
Claims (10)
1. a law-enforcing recorder, comprises law-enforcing recorder main body, camera and control unit, it is characterized in that, also comprises sound receiver and auditory localization module, and described sound receiver is for receiving the sound in particular frequency range;
When the described sound receiver sound received in described particular frequency range is greater than set point number, control unit controls the sound source position that described auditory localization module determines the sound in described particular frequency range, described control unit controls after described camera turns to described sound source position, and described control unit controls described camera carries out set point number flash photographing to described sound source position.
2. law-enforcing recorder as claimed in claim 1, it is characterized in that: be in certain position at described camera and carry out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, described in a rear moment, certain face moves to the second place, and described control unit controls described camera and turns to described 3rd position and focus on certain face described.
3. law-enforcing recorder as claimed in claim 1, is characterized in that:
Being in certain position at described camera carries out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if the previous moment recognizes certain face, a part for certain face described is only recognized in a rear moment, described control unit controls described camera and rotates to find certain face described, if again recognize certain face described, then certain face described is carried out to the flash photographing of set point number.
4. law-enforcing recorder as claimed in claim 1, is characterized in that:
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, at a rear moment None-identified to certain face described, described control unit controls described camera carries out set point number flash photographing to described primary importance.
5. law-enforcing recorder as claimed in claim 1, it is characterized in that: be in certain position at described camera and carry out in the process of making a video recording, described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then described control unit controls described camera carries out set point number focusing flash of light shooting to certain face described.
6. law-enforcing recorder as claimed in claim 1, it is characterized in that: according to the distance of described sound source position apart from described camera, described control unit controls described camera and focuses on described sound source position.
7. law-enforcing recorder as claimed in claim 1, it is characterized in that: the photoflash lamp of described law-enforcing recorder is made up of multiple LED, be provided with plastics or the glass of the LED luminance Curve Design synthesized according to all LED outside described LED, after making plastics described in the light transmission of described LED or glass, become uniform light.
8. a control method for law-enforcing recorder as claimed in claim 1, is characterized in that, comprises the steps:
When the sound that sound receiver receives in particular frequency range is greater than set point number, control unit controls the sound source position that auditory localization module determines the sound in described particular frequency range, described control unit controls after described camera turns to described sound source position, and described control unit controls described camera carries out set point number flash photographing to described sound source position.
9. the control method of law-enforcing recorder as claimed in claim 8, is characterized in that, also comprise the steps:
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, described in a rear moment, certain face moves to the second place, and described control unit controls described camera and turns to described 3rd position and focus on certain face described.
10. the control method of law-enforcing recorder as claimed in claim 8, is characterized in that, also comprise the steps:
Being in certain position at described camera carries out in the process of making a video recording, and described control unit carries out recognition of face to the image of described camera collection, if recognize certain face, then carries out following steps:
If certain face is in primary importance described in the previous moment, at a rear moment None-identified to certain face described, described control unit controls described camera carries out set point number flash photographing to described primary importance.
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| CN201410204643.8A CN104284081B (en) | 2014-05-14 | 2014-05-14 | A kind of law-enforcing recorder and control method thereof |
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| CN201410204643.8A CN104284081B (en) | 2014-05-14 | 2014-05-14 | A kind of law-enforcing recorder and control method thereof |
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Cited By (7)
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| CN105025240A (en) * | 2015-07-15 | 2015-11-04 | 深圳警翼数码科技有限公司 | Law enforcement recorder and control method thereof |
| CN107783508A (en) * | 2016-08-26 | 2018-03-09 | 佛山市顺德区美的电热电器制造有限公司 | Household electrical appliance and its control method and device |
| CN108495042A (en) * | 2018-04-22 | 2018-09-04 | 武子锋 | A kind of law-enforcing recorder and its control method |
| CN109005222A (en) * | 2018-07-26 | 2018-12-14 | 中智城信息技术有限公司 | A kind of city management system and method |
| CN109670994A (en) * | 2018-12-31 | 2019-04-23 | 邵帅仁 | One kind being used for judicial evidence checking method |
| CN112565598A (en) * | 2020-11-26 | 2021-03-26 | Oppo广东移动通信有限公司 | Focusing method and apparatus, terminal, computer-readable storage medium, and electronic device |
| CN116668804A (en) * | 2023-06-14 | 2023-08-29 | 山东恒辉软件有限公司 | Video image analysis processing method, device and storage medium |
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| CN105025240A (en) * | 2015-07-15 | 2015-11-04 | 深圳警翼数码科技有限公司 | Law enforcement recorder and control method thereof |
| CN107783508A (en) * | 2016-08-26 | 2018-03-09 | 佛山市顺德区美的电热电器制造有限公司 | Household electrical appliance and its control method and device |
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| CN109005222B (en) * | 2018-07-26 | 2021-07-06 | 中智城信息科技（苏州）有限公司 | City management system and method |
| CN109670994A (en) * | 2018-12-31 | 2019-04-23 | 邵帅仁 | One kind being used for judicial evidence checking method |
| CN112565598A (en) * | 2020-11-26 | 2021-03-26 | Oppo广东移动通信有限公司 | Focusing method and apparatus, terminal, computer-readable storage medium, and electronic device |
| CN116668804A (en) * | 2023-06-14 | 2023-08-29 | 山东恒辉软件有限公司 | Video image analysis processing method, device and storage medium |
| CN116668804B (en) * | 2023-06-14 | 2023-12-22 | 山东恒辉软件有限公司 | Video image analysis processing method, device and storage medium |
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| CN104284081B (en) | 2016-05-18 |
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Address after: Binhai Road Nanshan District Guangdong street of Shenzhen city in Guangdong province 518000 software industry base in Shenzhen, 5 E block 1102 Patentee after: Shenzhen police wing smart Polytron Technologies Inc Address before: 518000 Nanshan District science and Technology Park, Guangdong, Shenzhen, Tsinghua University, Shenzhen, B401 Patentee before: Shenzhen Jingyi Digital Technology Co., Ltd. |