CN202535461U

CN202535461U - Digital image shooting device with time-space information and original identification

Info

Publication number: CN202535461U
Application number: CN2012200097747U
Authority: CN
Inventors: 蒋牛
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-11
Filing date: 2012-01-11
Publication date: 2012-11-14
Anticipated expiration: 2022-01-11

Abstract

The utility model discloses a digital image shooting device with time-space information and original identification, comprising a main control CPU. The device is characterized in that the main control CPU is connected with a display device, a storage device, a GPS module, and an optical lens, wherein the optical lens is connected with a CCD/CMOS photoelectric sensor that is connected with an analogue signal processor, the analogue signal processor is connected with an A/D converter which is connected with a DSP digital signal processor, the DSP digital signal processor is connected with an integrality verification module which is respectively connected with the GPS module and the storage device, and the storage device is connected with the display device. The digital image photographing device is characterized in that a digital image shot is provided with time and space information; integrality verification calculation is conducted in the shooting process, an integrality verification value and the image shot are output synchronously, and originality, authenticity, and integrality of the electronic data document are guaranteed.

Description

Digitized video filming apparatus with space time information and primitiveness sign

Technical field

The utility model relates to the digitized video technical field, specifically is a kind of being applied in the judicial evidence collection, has the digitized video filming apparatus of space time information and primitiveness sign.

Background technology

Present filming image instrument mainly contains two kinds: the one, and traditional with the traditional filming image equipment of film, like film camera as the imaging photosensitive carrier; Another kind is with CCD or the CMOS digitized video camera-shooting and recording device as the imaging photosensitive original paper, like digital camera, DV.Along with the propelled at high velocity of global IT application process, digitizer is used day by day and is popularized, and digitizer is easy to use because of having, with low cost, be convenient to directly incorporate advantage such as digital communications network, replaced traditional analog equipment at numerous areas.

Present judicial evidence collection field, digitized video camera-shooting and recording device have replaced conventional film formula filming image equipment basically, and the digitized video camera-shooting and recording device has advantages such as cost is low, convenient and swift, and work has brought facility to judicial evidence collection.But the electronic data that existing digitized video camera-shooting and recording device is shot with video-corder; Common characteristics with electronic data, its essence are one group of Binary Zero 1 codes, revise easily or damage; In judicial evidence collection work, the people distorts or the equipment operation fault all can cause differing from the consequence of original true partial data; Though the electronic data that the digitized video camera-shooting and recording device that adopt in existing judicial evidence collection field is produced can be through the completeness check algorithm in later stage; Calculate its integrity check value; To guarantee the uniqueness of this document; Whether identification is modified, but it can only differentiate whether the electronic data that carries out completeness check computing front and back is consistent, and whether the electronic data of illustrative participation integrity operations is not distorted or damaged; The electronic data that the digitized video camera-shooting and recording device that adopt in existing judicial evidence collection field is produced does not have objective time mark; The free record of part capture apparatus, but the time from the clock system of equipment self, accuracy can not get guaranteeing; As evidence obtaining equipment, its time does not more possess convincingness; The electronic data that the digitized video camera-shooting and recording device that adopt in existing judicial evidence collection field is produced does not have free token, three dimensional space coordinate that can not be when the objective sign of technological layer is taken electronic data.

In the judicial evidence collection field, the electronic evidence that above-mentioned deficiency causes existing digitized video camera-shooting and recording device to be produced is easily renderd a service low, and evidence obtaining is the result also queried easily, therefore brought inconvenience to judicial evidence collection.

Summary of the invention

For overcoming the deficiency of prior art; The utility model provides a kind of digitized video filming apparatus with space time information and primitiveness sign; The digitized video that this device is taken has time, spatial information; Be provided with the completeness check module, guarantee the captured electronic data file of this device be original, true, complete, do not distorted.

The utility model solves the technical scheme that its technical problem adopted:

A kind of digitized video filming apparatus with space time information and primitiveness sign; Comprise master cpu, it is characterized in that: said master cpu is connected with display, holder, GPS module, optical lens, and said optical lens connects the CCD/CMOS photoelectric sensor; The CCD/CMOS photoelectric sensor connects analogue signal processor; Analogue signal processor connects A/D converter, and A/D converter connects the DSP digital signal processor, and the DSP digital signal processor is connected with the completeness check module; The completeness check module is connected with GPS module, holder respectively, and said holder is connected with display.

During use; Master cpu control optical lens, the light of subject reflection is transmitted on the CCD/CMOS photoelectric sensor through optical lens, and the photodiode of CCD/CMOS photoelectric sensor receives exciting of light and discharges electric charge; Generate the signal of telecommunication of photo-sensitive cell; The control chip of CCD/CMOS photoelectric sensor utilizes the control signal circuit in the photo-sensitive cell that the electric current that light-emitting diode produces is controlled, and by the output of current delivery circuit, the CCD/CMOS photoelectric sensor can collect the signal of telecommunication of Polaroid generation; Unified outputing to amplified in the analogue signal processor and filtering; Be sent to A/D converter through the amplification and the filtered signal of telecommunication, convert the signal of telecommunication (analog signal) into digital signal by A/D converter, the size of numerical value, the intensity of the signal of telecommunication are directly proportional with the height of voltage; These numerical value are the data of image just in fact; These digital signals are sent to the DSP digital signal processor again, and the DSP digital signal processor carries out colour correction, white balance to these image datas to be handled, and are compiled as the form that digital filming equipment supported, the image file of resolution; The GPS of master cpu control simultaneously module; The time that the GPS module will collect in the time of will taking, spatial information append in the image file that the DSP digital signal processor is compiled into, and these times, spatial information comprise temporal information, longitude and latitude, the absolute altitude of satellite clock source calibration; Image file carries out completeness check and calculates in the completeness check module; And the corresponding integrity check value of output; Can adopt MD5, SHA1, SHA2 scheduling algorithm at present; Last under the control of master cpu, the image file with space time information that calculates through completeness check send and stores in the holder and in display, show.

The beneficial effect of the utility model is: the captured digitized video of the utility model has time, spatial information; In the process of taking, carrying out completeness check calculates; Export integrity check value synchronously with shooting results, guaranteed primitiveness, authenticity, the integrality of electronic data file.

Description of drawings

Fig. 1 is the utility model principle assumption diagram.

Embodiment

Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values drop on application appended claims institute restricted portion equally.

As shown in Figure 1, a kind of digitized video filming apparatus with space time information and primitiveness sign comprises master cpu; It is characterized in that: said master cpu is connected with display, holder, GPS module, optical lens; Said optical lens connects the CCD/CMOS photoelectric sensor, and the CCD/CMOS photoelectric sensor connects analogue signal processor, and analogue signal processor connects A/D converter; A/D converter connects the DSP digital signal processor; The DSP digital signal processor is connected with the completeness check module, and the completeness check module is connected with GPS module, holder respectively, and said holder is connected with display.

During use; Master cpu control optical lens, the light of subject reflection is transmitted on the CCD/CMOS photoelectric sensor through optical lens, and the photodiode of CCD/CMOS photoelectric sensor receives exciting of light and discharges electric charge; Generate the signal of telecommunication of photo-sensitive cell; The control chip of CCD/CMOS photoelectric sensor utilizes the control signal circuit in the photo-sensitive cell that the electric current that light-emitting diode produces is controlled, and by the output of current delivery circuit, the CCD/CMOS photoelectric sensor can collect the signal of telecommunication of Polaroid generation; Unified outputing to amplified in the analogue signal processor and filtering; Be sent to A/D converter through the amplification and the filtered signal of telecommunication, convert the signal of telecommunication (analog signal) into digital signal by A/D converter, the size of numerical value, the intensity of the signal of telecommunication are directly proportional with the height of voltage; These numerical value are the data of image just in fact; These digital signals are sent to the DSP digital signal processor again, and the DSP digital signal processor carries out colour correction, white balance to these image datas to be handled, and are compiled as the form that digital camera supports, the image file of resolution; The GPS of master cpu control simultaneously module; The time that the GPS module will collect in the time of will taking, spatial information append in the image file that the DSP digital signal processor is compiled into, and these times, spatial information comprise temporal information, longitude and latitude, the absolute altitude of satellite clock source calibration; Image file carries out completeness check and calculates in the completeness check module; And the corresponding integrity check value of output; Can adopt MD5, SHA1, SHA2 scheduling algorithm at present; Last under the control of master cpu, the image file with space time information that calculates through completeness check send and stores in the holder and in display, show.

Claims

1. digitized video filming apparatus with space time information and primitiveness sign; Comprise master cpu, it is characterized in that: said master cpu is connected with display, holder, GPS module, optical lens, and said optical lens connects the CCD/CMOS photoelectric sensor; The CCD/CMOS photoelectric sensor connects analogue signal processor; Analogue signal processor connects A/D converter, and A/D converter connects the DSP digital signal processor, and the DSP digital signal processor is connected with the completeness check module; The completeness check module is connected with GPS module, holder respectively, and said holder is connected with display.