CN1180414A

CN1180414A - Motion detection imaging device and method

Info

Publication number: CN1180414A
Application number: CN 96193009
Authority: CN
Inventors: 约瑟夫·黎
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-04
Filing date: 1996-07-11
Publication date: 1998-04-29

Abstract

The present invention provides a motion detection and imaging method and a device (10) for implementing the method. The device (10) includes a housing (12) in which a CCD (18) providing digital image data is mounted, a lens (16) for focusing the image onto the CCD (18), and a solid-state non-volatile memory (24) for storing the digital image data. In one embodiment, the device (10) further includes a motion detector (26) for starting to store the digital data.

Description

Motion detection imaging device and method

Invention field

The present invention is relevant with the equipment and the method for motion detection and imaging, is applicable to the security personnel that the protected location is monitored.

Background of invention

Existing various security systems are used for the protected location is monitored that admission enters the personnel's of protected location image.

Usually, these systems are very expensive, comprise the various interconnective parts that are configured in diverse location, also need all on-the-spot aufsichtsrats.The purpose of this invention is to provide a kind of autonomous unit, can be easily installed in the zone that needs supervision, do not need the people to get involved after installing, unless need take off the image of being enrolled.

Brief summary of the invention

Motion detection proposed by the invention and imaging device comprise a casing, a CCD that digital image data is provided wherein is housed, the image focusing that to observe camera lens to the CCD, and the solid-state nonvolatile memory of a described digital image data of storage.

Camera lens can be a wide-angle lens assembly, can comprise an electronic shutter.

This equipment can comprise also that open periodically with predetermined time interval control shutter for one will be as the device that gathers to the CCD.

This equipment can comprise also that a startup deposits numerical data in the motion detector of storer.

This equipment can comprise also that a device that numerical data is compressed and one are with the device of data from being decompressed after storer is read before depositing storer in.

This equipment can also comprise the electronic clock and the calendar meter that can be used to the time and date of definite this numerical data.

This equipment can also comprise a light source.

Motion detection proposed by the invention and formation method comprise with a camera lens will be subjected to poly-the obtaining digital image data and resulting data being deposited in the step of solid nonvolatile memory to CCD of the image of monitor area.

Can at regular intervals the image that is subjected to monitor area periodically be focused on the CCD, the digital image data with the still frame that obtains a series of separation deposits storer in.

Other purposes of the present invention and advantage can be clear that from following description to the preferred embodiments of the present invention.

Brief description

Show to unique accompanying drawing principle of this explanation motion detection proposed by the invention and imaging device.

The detailed description of most preferred embodiment

As shown in the figure, this motion detection and imaging device 10 comprise a casing 12 of being furnished with transparent front end 14.Wide-angle lens 16 is housed in the casing 12, charge-coupled imaging device (CCD) 18, microprocessor 20, quartz crystal control clock and calendar meter 22, the memory bank 24 that constitutes by one or more solid-state non-volatile high density memory chips, microwave or ultrasonic motion detecting device 26, output interface 28, and illuminating lamp 29.Because the size of wide-angle lens picture and the microsize of CCD do not match, therefore before CCD18, added a magnifier 31, make that whole of imaging on the camera lens 16 can be enrolled.

Equipment 10 also comprises keying on-off switch 32, exchanges rheology parallel operation, voltage adjuster and battery charger 34 always, and reserve battery 36.Transducer/adjuster/battery charger 34 is connected to extraneous power supply by the AC power connecting line 38 of safety.

In this example, camera lens 16 is tight shots, is furnished with an electronic shutter that is subjected to microprocessor 20 controls.Camera lens 16 is installed in magnifier 31 fronts, and the picture of protected location is poly-to CCD18.CCD18 forms digitized picture, and pictorial data is delivered to microprocessor 20.Microprocessor 20 utilizes a proper compression compression algorithm, for example according to JPEG (photography expert associating group) standard, and the compressed digital pictorial data, compressed data deposit memory bank 24 in.The capacity of memory bank 24 depends on the number of images that needs storage, the resolution and the gray level of image, and the compression/decompression algorithm that is adopted.

Microprocessor 20 is programmed to by first in first out and stores each compressed image successively, therefore can retrieve the image of the nearest admission of (depending on memory capacity) at most.

Microprocessor 20 is programmed to discontinuous at set intervals memory image.Therefore, will store the still image that a width of cloth is subjected to surveillance zone at regular intervals, can select relatively shortlyer at interval as required, perhaps select longly to provide row short image at interval.For this reason, microprocessor 20 will be controlled shutter and open once at regular intervals.

Depositing image in storer 24 is by detected motion actuated in the protected location of motion detector 26.Motion detector 26 also starts illuminating lamp 29 according to main lighting condition.

Electronic clock and calendar meter 22 are used for providing the admission time and date of each image of being stored.

Equipment 10 is transformed into the DC power supply that voltage is adjusted by extraneous AC power supplies through transducer 34.Battery 36 is powered to equipment 10 when AC power supplies is interrupted as reserve battery.

Equipment 10 is equipped with the circuit that possesses self-diagnostic function, if necessary, and can be by the various failure conditions of LED indicator 40 indications that expose.

In use, casing 12 is installed on the position of the protected location that is difficult for touching but can fine observation need monitors.Casing 12 is furnished with carriage 30 or other appropriate device, with casing 12 installation in position.

Motion detector 26 will detect the motion in the protected location that is monitored, thereby starting outfit 10 work receives the image in this zone, deposits storer 24 after compression in.Just in case safety is damaged, and just can unload equipment 10, is connected to PC or the portable machine of being furnished with suitable software, checks an image of nearest admission.The pictorial data of being stored can be retrieved out, analyzes after the decompression or utilizes interpositioning to be strengthened.Need, hard copy output can be provided.

Equipment 10 is complete separate units, and all components all are placed in the casing 12.It has utilized the low-density imaging capability of charge-coupled image sensor by wide-angle lens, and is cooperated with the high density of data storage of non-volatile memory chip.

Also can use the camera lens of autozoom to replace the camera lens that focuses, so that better picture to be provided.Can also be by further improving image quality according to automatic controls lens aperture of lighting condition and shutter speed.

Though above the preferred embodiments of the present invention have been done detailed description, the present invention is not limited thereto, can make various modifications within the scope of the appended claims.

Claims

1. motion detection and imaging device, described equipment comprises a casing, wherein be equipped with a CCD that digital image data is provided, the image focusing that will observe to the CCD camera lens and the solid-state nonvolatile memory of a described digital image data of storage.

2. by the described equipment of claim 1, wherein said camera lens comprises a wide-angle lens assembly.

3. by the described equipment of claim 2, wherein said wide-angle lens assembly comprises an electronic shutter.

4. by the described equipment of claim 3, described equipment also comprises the device that the control shutter was opened every the schedule time, so that periodically that image is poly-to CCD.

5. by the described equipment of claim 2, described equipment also comprises a magnifier that is configured between wide-angle lens assembly and the CCD.

6. by the described equipment of claim 1, described equipment comprises that also a startup deposits digital image data in the motion detector of storer.

7. by the described equipment of claim 1, described equipment also comprises device that digital image data is compressed and the device of data being read laggard row decompression from storer before depositing storer in.

8. by the described equipment of claim 1, described equipment also comprises the electronic clock and the calendar meter of the admission time and date of a definite numerical data of being stored.

9. by the described equipment of claim 6, wherein said casing is anti-interference, has a transparent front end, and described wide-angle lens assembly and motion detector are configured near described transparent front end place.

10. motion detection and formation method said method comprising the steps of: gone up so that digital image data to be provided by image focusing to a CCD of monitor area by a camera lens, and deposit data in a solid-state nonvolatile memory.

11., gathered on the CCD every predetermined period of time ground by the image of monitor area by the described method of claim 10; Thereby the digital image data of the still frame of a series of separation is provided, deposits described storer in.

12. by the described method of claim 10, described method is further comprising the steps of: by a suitable compression algorithm data are compressed before depositing storer in.

13. by the described method of claim 10, described method is further comprising the steps of: be subjected to the motion detection apparatus of the motion in the monitor area to start the storage numerical data by detection.

14. by the described method of claim 10, wherein said camera lens comprises a wide-angle lens assembly.

15. by the described method of claim 14, described method is further comprising the steps of: a magnifier is configured between wide-angle lens assembly and the CCD, so that obtain the whole image of wide-angle lens assembly output for CCD.

16. by the described method of claim 10, described method is further comprising the steps of: measure the illumination that is subjected to monitor area, and if illumination be lower than predetermined value, just thrown light in this zone.