CN106464846A - Camera, DVR, and image monitoring system comprising same - Google Patents
Camera, DVR, and image monitoring system comprising same Download PDFInfo
- Publication number
- CN106464846A CN106464846A CN201580029146.1A CN201580029146A CN106464846A CN 106464846 A CN106464846 A CN 106464846A CN 201580029146 A CN201580029146 A CN 201580029146A CN 106464846 A CN106464846 A CN 106464846A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- signal
- image data
- combination
- photographic head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 155
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 15
- 238000012545 processing Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 36
- 239000003990 capacitor Substances 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 2
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Closed-Circuit Television Systems (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
A camera, according to one embodiment of the present invention, may comprise: an image data generation unit for generating image data by processing a photographed image; a first encoder for converting the image data into an analog transmission signal; a second encoder for converting the image data into a digital transmission signal; and a combined transmission signal generation unit for generating a combined transmission signal comprising at least one of the analog transmission signal and the digital transmission signal.
Description
Technical field
The present invention relates to photographic head, digital VTR (DVR) and the image monitoring including them.
Background technology
Photographic head (camera) used in image monitoring sends the image number shooting specific region to DVR
According to DVR is shown to the image data being received or records a video.The method that photographic head transmits image data to DVR is included with mould
Intend transmission signal aspect and transmit the mode of image data and in the way of digital transmission signal form transmission image data.To simulate
Transmission signal aspect transmit image data Imitation conveyance mode utilize low frequency region transmit image data, thus have transmission away from
From away from advantage, on the contrary, image data is transmitted with analogue signal, thus for the anti-interference energy of noise being flowed in transmission
Power is weak, has the shortcomings that to transmit unsharp image data.Additionally, transmit the numeral of image data with digital transmission signal form
Load mode is directed to the strong antijamming capability of the noise flowed in transmission, thus has the excellent of transmittable clearly image data
Point, but, due to transmitting image data using high-frequency region, thus have the shortcomings that transmitting range is short.
Even if if the distance between photographic head and DVR immediate cause and also can receive image using digital transmiting means, DVR pair
Shown by the clearly image that digital transmiting means receive or recorded a video, if however, between photographic head and DVR distance remote and
Image cannot be received by digital transmiting means, then DVR is to being shown by the image that Imitation conveyance mode receives or record a video.
Content of the invention
(inventing problem to be solved)
It is an advantage of the invention to provide following imaging monitoring photographic head and DVR, i.e. solve in image prison
Need from analog image sender in the case that image transmitting range between photographic head used in control system and DVR is remote
The photographic head of formula and DVR and need to transmit from digitized video in the case that between photographic head and DVR, image transmitting range is near
The photographic head of mode and the problem of DVR, thus reduce the complexity of image monitoring being made up of photographic head and DVR and one-tenth
This, can carry out high-definition monitoring simultaneously.
The technical problem of the present invention is not limited to technical problem mentioned above, the technical field of the invention general
Logical technical staff can be expressly understood that the other technologies problem not being mentioned to by following record.
(measure that solve problem is adopted)
The photographic head of one embodiment of the invention may include：Image data generating unit, the image of processing screened simultaneously generates shadow
As data；First encoder, above-mentioned image data is converted to Imitation conveyance signal；Second encoder, by above-mentioned image data
Be converted to digital transmission signal；And combine transmission signal generation portion, generate and comprise above-mentioned Imitation conveyance signal and numeral transmission
The combination transmission signal of at least one of signal.
In one embodiment, above-mentioned combination transmission signal generation portion can be by being allocated in first by above-mentioned Imitation conveyance signal
Above-mentioned digital transmission signal simultaneously is allocated in second frequency region to generate above-mentioned combination transmission signal by frequency field.
In one embodiment, above-mentioned first frequency region can be defined as thering is the frequency lower than above-mentioned second frequency region
Region.
In one embodiment, above-mentioned first encoder may include for above-mentioned to above-mentioned combination transmission signal generation portion transmission
The low pass filter of Imitation conveyance signal.
In one embodiment, above-mentioned second encoder may include for above-mentioned to above-mentioned combination transmission signal generation portion transmission
The high pass filter of digital transmission signal.
In one embodiment, above-mentioned first encoder and above-mentioned image data generating unit are set as in resolution and frame frequency
At least one different.
In one embodiment, above-mentioned second encoder and above-mentioned image data generating unit are set as in resolution and frame frequency
At least one different.
In one embodiment, can be based on above-mentioned image number based on the viewing area that above-mentioned Imitation conveyance signal defines
According to and define viewing area a part.
In one embodiment, the viewing area being defined based on above-mentioned digital transmission signal can be based on above-mentioned image number
According to and define viewing area a part.
In one embodiment, the photographic head of the present invention may also include for transmitting signal to the above-mentioned combination of exterior terminal transmission
Communication interface part.
The DVR of one embodiment of the invention may include：Communication interface part, combines transmission signal for receiving from photographic head；The
One decoder, in the case of comprising Imitation conveyance signal, above-mentioned Imitation conveyance signal is changed in above-mentioned combination transmission signal
For the first image data；Second decoder, in the case of comprising digital transmission signal in above-mentioned combination transmission signal, will be above-mentioned
Digital transmission signal is converted to the second image data；And Data Control portion, select above-mentioned first image data and the second image
At least one of data is exporting.
In one embodiment, above-mentioned first decoder detection can be included in above-mentioned simulation biography from above-mentioned combination transmission signal
The vertical synchronizing signal of Imitation conveyance signal specification of the number of delivering letters, horizontal-drive signal and color reference signal, using being detected
The vertical synchronizing signal that goes out and horizontal-drive signal come to generate for represent whether comprise in above-mentioned combination transmission signal above-mentioned
First identifying information of Imitation conveyance signal, using detected vertical synchronizing signal, horizontal-drive signal and colour reference
Signal is generating the first resolution information based on Imitation conveyance signal.
In one embodiment, above-mentioned first decoder can transmit above-mentioned first identifying information and the to above-mentioned Data Control portion
One resolution information.
In one embodiment, above-mentioned second decoder can be included in above-mentioned numeral transmission from above-mentioned combination transmission signal detection
The vertical sync information of digital transmission signal specification of signal, horizontal sync information and valid pixel information, using detected
Vertical sync information and horizontal sync information come to generate for represent above-mentioned combination transmission signal in whether comprise above-mentioned number
Word transmits the second identifying information of signal.Using detected vertical sync information, horizontal sync information and valid pixel letter
Cease and to generate the second resolution information based on above-mentioned digital transmission signal.
In one embodiment, above-mentioned second decoder can transmit above-mentioned second identifying information and the to above-mentioned Data Control portion
Two resolution informations.
In one embodiment, above-mentioned Data Control portion can based in above-mentioned first identifying information and the second identifying information extremely
Lack a kind of information to select at least one of above-mentioned first image data and second image data and to export.
In one embodiment, above-mentioned communication interface part may include：First buffer, makes above-mentioned from the reception of above-mentioned photographic head
In conjunction with transmitting signal through, and block the first reflected signal from above-mentioned first decoder；First capacitor, will pass through on
The combination stating the first buffer transmits the DC component removal of signal and transmits to above-mentioned first decoder；Second buffer, makes
The above-mentioned combination receiving from above-mentioned photographic head transmits signal through, and blocks the second reflection letter from above-mentioned second decoder
Number；And second capacitor, will be removed by the DC component that the combination of above-mentioned second buffer transmits signal and to above-mentioned
Second decoder transmission.
In one embodiment, above-mentioned communication interface part may include：First buffer, makes above-mentioned from the reception of above-mentioned photographic head
In conjunction with transmitting signal through, and block the first reflected signal from above-mentioned first decoder；First capacitor, will pass through on
The combination stating the first buffer transmits the DC component removal of signal and transmits to above-mentioned first decoder；And second electric capacity
Device, the DC component that the above-mentioned combination receiving from above-mentioned photographic head is transmitted signal removes and transmits to above-mentioned second decoder.
In one embodiment, above-mentioned communication interface part may include：Resistance, makes the above-mentioned combination receiving from above-mentioned photographic head pass
The number of delivering letters is passed through, and the first reflected signal from above-mentioned first decoder is decayed；First capacitor, will pass through above-mentioned electricity
The DC component that the combination of resistance transmits signal removes and transmits to above-mentioned first decoder；And second capacitor, will be from above-mentioned
The DC component that the above-mentioned combination that photographic head receives transmits signal removes and transmits to above-mentioned second decoder.
In one embodiment, above-mentioned communication interface part may include：Buffer, makes the above-mentioned combination receiving from above-mentioned photographic head
Transmit signal through, and reduce the first reflected signal from above-mentioned first decoder and from above-mentioned second decoder second
The impact of reflected signal；First capacitor, will be removed by the DC component that the combination of above-mentioned buffer transmits signal and to
Above-mentioned first decoder transmission；And second capacitor, the combination that will pass through above-mentioned buffer transmits the DC component of signal
Remove and transmit to above-mentioned second decoder.
In one embodiment, above-mentioned communication interface part may include the above-mentioned combination transmission signal receiving from above-mentioned photographic head
DC component remove and to above-mentioned first decoder and the second decoder transmission single capacitor.
The image monitoring of one embodiment of the invention may include：Photographic head, the image of processing screened and generate image
Data, above-mentioned image data is respectively converted into Imitation conveyance signal and digital transmission signal, and generates and combine above-mentioned simulation
The combination transmission signal of transmission signal and digital transmission signal；And DVR, to the above-mentioned combination transmission transmitting from above-mentioned photographic head
Signal is analyzed, and the above-mentioned Imitation conveyance signal being included in above-mentioned combination transmission signal is converted to the first image data, will
The above-mentioned digital transmission signal being contained in above-mentioned combination transmission signal is converted to the second image data, selects above-mentioned first image number
According to and at least one of the second image data to show or to record a video.
(The effect of invention)
Photographic head according to an embodiment of the invention, DVR and the image monitoring including it are it is provided that reduce by taking the photograph
As the complexity of image monitoring and the cost of head and DVR composition, the imaging monitoring shooting of high-definition monitoring can be carried out simultaneously
Head, DVR and image monitoring.
Brief description
Fig. 1 is the block diagram illustrating photographic head according to an embodiment of the invention.
Fig. 2 is the figure of the frequency field for combination transmission signal according to an embodiment of the invention is described.
Fig. 3 is the block diagram illustrating DVR according to an embodiment of the invention.
Fig. 4 to Fig. 8 is the block diagram of the communication interface part specifically illustrating Fig. 3 according to various embodiments.
Fig. 9 is the block diagram illustrating image monitoring according to an embodiment of the invention.
Specific embodiment
Hereinafter, by exemplary plot, the section Example of the present invention is described in detail.It should be noted that to each accompanying drawing
In structural element give reference when, even if identical structural element represents in different drawings, also adopt as far as possible
Identical reference.Additionally, during explanation embodiments of the invention, when being judged as to related known features or
When illustrating the understanding being an impediment to the embodiment of the present invention of function, omits detailed description thereof.
Additionally, during the structural element to the embodiment of the present invention illustrates, can using first, second, A, B,
The terms such as (a), (b).This term is used only for distinguishing this structural element and other structures key element, and this term does not limit corresponding knot
The essence of structure key element, order or order etc..Be recited as a structural element and other structures key element " being connected ", " combining " or
It will be appreciated that this structural element can be joined directly together with this other structures key element connects or be connected in the case of " being connected ", but
Can there is other other structures key element " being connected ", " combining " or " being connected " between each structural element again.
Fig. 1 is the block diagram of the photographic head illustrating one embodiment of the invention, and Fig. 2 is the knot for one embodiment of the invention is described
Close the figure of the frequency field of transmission signal.
First, with reference to Fig. 1, photographic head 100 according to an embodiment of the invention may include image data generating unit 110, the
One encoder 120, second encoder 130, combination transmission signal generation portion 140 and communication interface part 150.
Image data generating unit 110 will be converted to the signal of telecommunication by the optical signal that camera lens (not shown) enters, and can pass through
Process the signal of telecommunication to generate image data.For example, image data generating unit 110 can generate numeral by processing above-said current signal
Image data.
Image data generating unit 110 can utilize charge coupled device (CCD, Charge Coupled Device) or complementation
Metal-oxide semiconductor (MOS) (CMOS, Complementary Metal Oxide Semiconductor) imageing sensor by
Optical signal is converted to the signal of telecommunication.Image data generating unit 110 processes the signal of telecommunication, above-mentioned image data to generate image data
Generating unit 110 can be realized using image-signal processor (Image Signal Processor, ISP).Image data generates
Portion 110 can generate the image data with various resolution according to setting.Additionally, image data generating unit 110 can be according to setting
Fixed and generation has the image data of various frame frequencies (Frame Rate).
The image data transmitting from image data generating unit 110 can be converted to Imitation conveyance signal by the first encoder 120.
That is, the first encoder 120 makes the image data being generated by image data generating unit 110 meet analog image transmission specification, and can
Using digital to analog converter (DAC, Digital to Analog Converter), digital image data is converted to Imitation conveyance letter
Number.For example, analog image transmission specification may include NTSC, PAL, SECAM or turns high definition (HD)/ultra high-definition (UHD) level image
It is changed to form of Imitation conveyance signal etc..
First encoder 120 can have the resolution different from the resolution of image data generating unit 110.That is, by first
The resolution that the Imitation conveyance signal that encoder 120 generates has can be with the image being generated by image data generating unit 110
The resolution that data has is different.Additionally, the first encoder 120 can have different from the frame frequency of image data generating unit 110
Frame frequency.That is, the frame frequency being had by the Imitation conveyance signal that the first encoder 120 generates can with by image data generating unit
The frame frequency that the image data of 110 generations has is different.
First encoder 120 can generate has show different from the image data being generated by image data generating unit 110
Show the Imitation conveyance signal in region.The viewing area that namely be based on the Imitation conveyance signal being generated by the first encoder 120 and define
It can be the part based on the viewing area being defined by the image data that image data generating unit 110 generates.In order to not make
The Imitation conveyance signal of low frequency region produces impact to the digital transmission signal of high-frequency region, and the first encoder 120 may include low
Bandpass filter (LPF) 121.
The image data transmitting from image data generating unit 110 can be converted to digital transmission signal by second encoder 130.
That is, second encoder 130 can be to the shadow being generated by image data generating unit 110 in the way of meeting digitized video transmission specification
As data carries out conversion to generate digital transmission signal.For example, digitized video transmission specification may include HD-SDI (high-definition digital divide
Amount serial line interface) or SD-SDI (SD digital component serial line interface) etc..
Second encoder 130 can have different from the resolution of image data generating unit 110 and/or the first encoder 120
Resolution.For example, the resolution being had by the digital transmission signal that second encoder 130 generates can with by image data
Resolution and/or the Imitation conveyance signal institute being generated by the first encoder 120 that the image data that generating unit 110 generates has
The resolution having is different.Additionally, second encoder 130 can have and image data generating unit 110 and/or the first encoder
The different frame frequency of 120 frame frequency.That is, the frame frequency being had by the digital transmission signal that second encoder 130 generates can with by
Frame frequency and/or the Imitation conveyance being generated by the first encoder 120 that the image data that image data generating unit 110 generates has
The frame frequency that signal has is different.
Second encoder 130 can generate have with the image data being generated by image data generating unit 110 and/or by
The digital transmission signal of the different viewing area of Imitation conveyance signal that the first encoder 120 is generated.Namely be based on and compiled by second
Digital transmission signal that code device 130 generates and the viewing area that defines can generate based on by image data generating unit 110
Image data and the viewing area defining and/or defined based on the Imitation conveyance signal being generated by the first encoder 120 aobvious
Show the part in region.
Digital transmission signal in order to not make high-frequency region produces impact, the second volume to the Imitation conveyance signal of low frequency region
Code device 130 may include high pass filter (HPF) 131.
In conjunction with transmission signal generation portion 140 can generate comprise from the first encoder 120 transmission Imitation conveyance signal and
The combination transmission signal of at least one signal from the digital transmission signal of second encoder 130 transmission.
The Imitation conveyance signal next life from the first encoder 120 transmission can only be selected in conjunction with transmission signal generation portion 140
Become to combine transmission signal.The numeral transmission letter from second encoder 130 transmission can only be selected in conjunction with transmission signal generation portion 140
Number come to generate with reference to transmission signal.
Additionally, with reference to Fig. 2, can be by the simulation transmitting from the first encoder 120 be passed in conjunction with transmission signal generation portion 140
The number of delivering letters is allocated in first frequency region and the digital transmission signal transmitting from second encoder 130 is allocated in second frequency
Region combines transmission signal to generate.For example, first frequency region can be defined as the frequency less than second frequency region
The region of rate.
Communication interface part 150 can be by transmitting cable to the generated combination transmission letter of exterior terminal (such as DVR) transmission
Number.For example, above-mentioned transmission cable can be coaxial cable (Coaxial Cable).Communication interface part 150 can be from exterior terminal
(such as DVR) receives photographic head control instruction.The instruction receiving can be by means of the control unit (not shown) within photographic head 100
Come for controlling image data generating unit 110, the first encoder 120, second encoder 130, combining transmission signal generation portion 140
And communication interface 150.Except combine transmission signal in addition to, communication interface part 150 also can to exterior terminal (such as DVR) transmission by
The various information (for example, the mobile message of object) that photographic head 100 generates.
As described above, the image data of generation is respectively converted into Imitation conveyance by the photographic head 100 of one embodiment of the invention
Signal and digital transmission signal, and to exterior terminal (such as DVR) transmission, Imitation conveyance signal and digital transmission signal can be tied
Combination transmission signal altogether.
Therefore, DVR 200 can be according to image transmitting range optionally to Imitation conveyance signal and/or digital transmission signal
It is decoded exporting.Result, it is possible to provide following imaging monitoring photographic head 100, i.e. solve to be transmitted in image according to distance
Need selection near in image transmitting range using photographic head and the DVR of analog image load mode in the case that distance is remote
In the case of need select use the photographic head of digitized video load mode and the problem of DVR, thus reducing complexity and cost, with
When can carry out high-definition monitoring.
Fig. 3 is the block diagram of the DVR illustrating one embodiment of the invention.
With reference to Fig. 3, the DVR 200 of one embodiment of the invention may include communication interface part 210, the first decoder 220, second
Decoder 230 and Data Control portion 240.
The combination that communication interface part 210 can be transmitted from photographic head 100 by transmitting cable reception transmits signal.For example, on
Stating transmission cable can be coaxial cable.Communication interface part 210 can send for controlling taking the photograph of photographic head 100 to photographic head 100
As head control instruction.Communication interface part 210 can from photographic head 100 receive image information and by photographic head 100 generate each
The information of kind (for example, the mobile message of object).
In the case of the combination transmission signal packet signal containing Imitation conveyance being transmitted by communication interface part 210, the first solution
Imitation conveyance signal can be converted to the first image data by code device 220.First decoder 220 can transmit to Data Control portion 240
First image data.
First decoder 220 can detect, from combining transmission signal, the Imitation conveyance being included in Imitation conveyance signal
The vertical synchronizing signal (V Sync) of signal specification, horizontal-drive signal (H Sync) and color references signal (Color Sub-
Carrier presence or absence) and frequency etc..
First decoder 220 can utilize detected vertical synchronizing signal (V Sync) and horizontal-drive signal (H
Sync) combining, for representing, the first identifying information whether comprising Imitation conveyance signal in transmission signal to generate.Its reason
It is, due to transmitting Imitation conveyance signal in the way of meeting Imitation conveyance specification, and in the way of meeting numeral transmission specification
Transmission digital transmission signal, thus only in the case of combining transmission signal packet signal containing Imitation conveyance, can detect that vertically same
Step signal and horizontal-drive signal.First decoder 220 can transmit the first identifying information to Data Control portion 240.
First decoder 220 can be using detected vertical synchronizing signal, horizontal-drive signal and color references signal
To extract the first resolution information based on received Imitation conveyance signal.
First decoder 220 can be implemented as Video Decoder (Video Decoder).First decoder 220 may include
For to the amplifier (not shown) being amplified with reference to transmission signal, for Imitation conveyance signal is converted to digital signal
Analog-digital converter (Analog to Digital Converter, not shown), for black and white component (Y) and color component (C)
Carry out detached Y/C separator (not shown), the color demodulator for color component is demodulated with (Demodulation)
(not shown) and for image quality compensator (not shown) that image quality is compensated etc..
In the case of comprising digital transmission signal in the combination transmission signal transmitting by communication interface part 210, second
Digital transmission signal can be converted to the second image data by decoder 230, and the second decoder 230 can pass to Data Control portion 240
Send the second image data.
Second decoder 230 can detect, from combining, the numeral transmission being included in digital transmission signal transmission signal
The vertical sync information (V Sync) of signal specification, horizontal sync information (H Sync), valid pixel information (Active
Pixel) etc..
Second decoder 230 can utilize detected vertical synchronizing signal (V Sync) and horizontal-drive signal (H
Sync) combine, for representing, the second identifying information whether comprising digital transmission signal in transmission signal to generate.Its reason exists
In due to transmitting digital transmission signal in the way of meeting numeral transmission specification, and being passed in the way of meeting Imitation conveyance specification
Send Imitation conveyance signal, thus only in the case that transmission signal packet contains digital transmission signal, can detect that vertical sync information
And horizontal sync information.Second decoder 230 can transmit the second identifying information to Data Control portion 240.
Second decoder 230 can be utilized vertical sync information, horizontal sync information and the valid pixel information being detected
Etc. extracting the second resolution information based on received digital image signal.
Second decoder 230 can be implemented as digital component serial line interface (SDI) receptor (Receiver).Second decoding
Device 230 may include for amplifying the amplifier (not shown) transmitting signal, phase-locked loop (PLL, Phase for extracting clock
Locked Loop) (not shown), for convert serial data into parallel data deserializer (SERDES,
Serialize and Deserialize) (not shown) and for compensating image quality compensator (not shown) of image quality etc..
Data Control portion 240 can be utilized from the first decoder 220 and the second decoder 230 transmission the first identifying information and
Second identifying information is selecting at least one data in the first image data and the second image data and to be exported.For example,
In the case of only receiving the first identifying information, Data Control portion 240 can only export the first image data, is only receiving
In the case of second identifying information, Data Control portion 240 can only export the second image data.Receiving the first identifying information
And second in the case of identifying information, Data Control portion 240 can export the first image data and the second image data.In output
In the case of the both sides of the first image data and the second image data, Data Control portion 240 can be independently processed to the first shadow
The video recording of picture data and the second image data, storage etc..Data Control portion 240 can be based on first resolution information and second point
Resolution information is determining the resolution of corresponding first image data and the second image data.
Fig. 4 to Fig. 8 is the block diagram of the communication interface part specifically illustrating Fig. 3 according to various embodiments respectively.
Specifically, Fig. 4 to Fig. 8 is to illustrate to receive the communication interface part 210 of the DVR200 by one embodiment of the invention
Give the block diagram of the concrete structure of the communication interface part 210 of the first decoder 220 and the second decoder 230 in conjunction with transmission signal.
First, with reference to Fig. 4, communication interface part 210a may include：First buffer 211a, is used for making connecing from photographic head 100
The combination received transmits signal through, and blocks the first reflected signal from the first decoder 220；First capacitor 212a, will
The combination having passed through the first buffer 211a transmits the DC component removal of signal and transmits to the first decoder 220；Second delays
Rush device 213a, the combination for making to receive from photographic head 100 transmits signal through, and block from the second decoder 230 the
Two reflected signals；And the second capacitor 214a, the combination that will pass through the second buffer 213a transmits the DC component of signal
Remove and transmit to above-mentioned second decoder 230.
For example, the first reflected signal can be because of impedance when combining transmission signal and transmitting to the first decoder 220
(impedance) inconsistent and reflect signal.For example, the second reflected signal can be worked as in conjunction with transmission signal to the second decoding
The signal reflecting because impedance is inconsistent during device 230 transmission.Therefore, communication interface part 210a that figure 5 illustrates can be utilized the
One buffer 211a and the second buffer 213a comes to the combination transmission to the first decoder 220 and the second decoder 230 transmission
Signal interference each other is blocked.
With reference to Fig. 5, communication interface part 210b may include：First buffer 211b, for making the knot receiving from photographic head 100
Conjunction transmits signal through, and blocks the first reflected signal from the first decoder 220；First capacitor 212b, will pass through
The DC component that the combination of the first buffer 211b transmits signal removes and transmits to the first decoder 220；And second electric capacity
Device 213b, the DC component that the combination receiving from photographic head 100 is transmitted signal removes and transmits to the second decoder 230.
With reference to Fig. 6, communication interface part 210c may include：Resistance 211c, for making the combination transmission receiving from photographic head 100
Signal passes through, and the first reflected signal from the first decoder 220 is decayed；First capacitor 212c, will pass through resistance
The DC component that the combination of 211c transmits signal removes and transmits to the first decoder 220；And the second capacitor 213c, will be from
The DC component that the combination that photographic head 100 receives transmits signal removes and transmits to the second decoder 230.
With reference to Fig. 7, communication interface part 210d may include：Buffer 211d, the combination for making to receive from photographic head 100 passes
The number of delivering letters is passed through, and reduces the first reflected signal from the first decoder 220 and the second reflection from the second decoder 230
The impact of signal；First capacitor 212d, by passed through buffer 211d combination transmit signal DC component remove and to
First decoder 220 transmits；And the second capacitor 213d, the direct current that the combination having passed through buffer 211d is transmitted signal divides
Amount removes and transmits to the second decoder 230.
With reference to Fig. 8, communication interface part 210e may include the DC component that the combination receiving from photographic head 100 transmits signal
Remove and the single capacitor 211e to the first decoder 220 and the second decoder 230 transmission.That is, according to shown in fig. 8
Communication interface part 210e, can will be eliminated using a capacitor 211e DC component combination transmission signal to first solution
Code device 220 and the second decoder 230 transmit.
Fig. 9 is the block diagram of the image monitoring illustrating one embodiment of the invention.
With reference to Fig. 9, the image monitoring 1000 of one embodiment of the invention may include photographic head 100 and DVR 200.
Photographic head 100 can be substantially the same with the photographic head illustrating by referring to Fig. 1.DVR 200 can with pass through
The DVR illustrating with reference to Fig. 3 is substantially the same.
With reference to the above-mentioned explanation to photographic head 100 and DVR 200, the image data being generated is turned by photographic head 100 respectively
It is changed to Imitation conveyance signal and digital transmission signal, and Imitation conveyance signal can be combined to exterior terminal (such as DVR) transmission
And the combination transmission signal of digital transmission signal.Therefore, DVR 200 can be according to image transmitting range optionally to Imitation conveyance
Signal and/or digital transmission signal are decoded being shown or record a video.
Therefore, it is possible to provide following image monitoring 1000, i.e. remote in image transmitting range according to distance by solving
In the case of need to select using the photographic head of analog image load mode and DVR in the case that image transmitting range is near
Needing to select to use the photographic head of digitized video load mode and the problem of DVR, thus reducing complexity and cost, can enter simultaneously
Row high-definition monitoring.
Described above is only the exemplary illustration to the technology of the present invention thought, the common skill of the technical field of the invention
Art personnel can carry out various modifications in the range of without departing from intrinsic propestieses of the present invention and deform.
Therefore, disclosed embodiment is used for illustrating the present invention in the present invention, and is not intended to limit the technology of the present invention
Thought, the scope of the technological thought of the present invention is not limited to the examples.Protection scope of the present invention should be by the present invention's
The scope of claim is making an explanation, and all technological thoughts in the scope being equal to it be should be interpreted that and are included in this
In invention scope of the claimed.
Claims (22)
1. a kind of photographic head, including：
Image data generating unit, the image of processing screened and generate image data；
First encoder, above-mentioned image data is converted to Imitation conveyance signal；
Second encoder, above-mentioned image data is converted to digital transmission signal；And
In conjunction with transmission signal generation portion, generate the knot comprising at least one of above-mentioned Imitation conveyance signal and digital transmission signal
Close transmission signal.
2. photographic head according to claim 1 is it is characterised in that above-mentioned simulation is passed by above-mentioned combination transmission signal generation portion
The number of delivering letters is allocated in first frequency region and above-mentioned digital transmission signal is allocated in second frequency region, thus generates above-mentioned knot
Close transmission signal.
3. photographic head according to claim 2 is it is characterised in that above-mentioned first frequency region is defined as having than above-mentioned
The region of the low frequency of two frequency fields.
4. photographic head according to claim 1 is it is characterised in that above-mentioned first encoder is included for passing to above-mentioned combination
Signal generation portion is sent to transmit the low pass filter of above-mentioned Imitation conveyance signal.
5. photographic head according to claim 1 is it is characterised in that above-mentioned second encoder is included for passing to above-mentioned combination
Signal generation portion is sent to transmit the high pass filter of above-mentioned digital transmission signal.
6. photographic head according to claim 1 is it is characterised in that above-mentioned first encoder settings are in resolution and frame frequency
At least one of different with above-mentioned image data generating unit.
7. photographic head according to claim 1 is it is characterised in that above-mentioned second encoder is set as in resolution and frame frequency
At least one of different with above-mentioned image data generating unit.
8. photographic head according to claim 1 is it is characterised in that the viewing area that defined based on above-mentioned Imitation conveyance signal
Domain is a part for the viewing area being defined based on above-mentioned image data.
9. photographic head according to claim 1 is it is characterised in that the viewing area that defined based on above-mentioned digital transmission signal
Domain is a part for the viewing area being defined based on above-mentioned image data.
10. photographic head according to claim 1 is it is characterised in that also include to exterior terminal transmission above-mentioned combination transmission
The communication interface part of signal.
A kind of 11. DVR, including：
Communication interface part, receives from photographic head and combines transmission signal；
First decoder, in the case of comprising Imitation conveyance signal, above-mentioned Imitation conveyance is believed in above-mentioned combination transmission signal
Number be converted to the first image data；
Second decoder, in the case of comprising digital transmission signal in above-mentioned combination transmission signal, by above-mentioned numeral transmission letter
Number be converted to the second image data；And
Data Control portion, selects at least one of above-mentioned first image data and the second image data to export.
12. DVR according to claim 11 are it is characterised in that above-mentioned first decoder is from above-mentioned combination transmission signal
The detection vertical synchronizing signal of Imitation conveyance signal specification and horizontal-drive signal, using detected vertical synchronizing signal and
Horizontal-drive signal come to generate for represent above-mentioned combination transmission signal in whether comprise the first of above-mentioned Imitation conveyance signal
Identifying information.
13. DVR according to claim 12 are it is characterised in that above-mentioned first decoder transmits to above-mentioned Data Control portion
Above-mentioned first identifying information.
14. DVR according to claim 13 are it is characterised in that above-mentioned second decoder is from above-mentioned combination transmission signal
The detection vertical sync information of digital transmission signal specification and horizontal sync information, using detected vertical sync information and
Horizontal sync information come to generate for represent above-mentioned combination transmission signal in whether comprise the second of above-mentioned digital transmission signal
Identifying information.
15. DVR according to claim 14 are it is characterised in that above-mentioned second decoder transmits to above-mentioned Data Control portion
Above-mentioned second identifying information.
16. DVR according to claim 15 are it is characterised in that above-mentioned Data Control portion is based on above-mentioned first identifying information
And second at least one of identifying information and select at least one of above-mentioned first image data and second image data simultaneously
Output.
17. DVR according to claim 11 are it is characterised in that above-mentioned communication interface part includes：
First buffer, makes the above-mentioned combination receiving from above-mentioned photographic head transmit signal through, and blocks from above-mentioned first solution
First reflected signal of code device；
First capacitor, the DC component that the combination having passed through above-mentioned first buffer is transmitted signal removes and to above-mentioned first
Decoder transmits；
Second buffer, makes the above-mentioned combination receiving from above-mentioned photographic head transmit signal through, and blocks from above-mentioned second solution
Second reflected signal of code device；And
Second capacitor, the DC component that the combination having passed through above-mentioned second buffer is transmitted signal removes and to above-mentioned second
Decoder transmits.
18. DVR according to claim 11 are it is characterised in that above-mentioned communication interface part includes：
First buffer, makes the above-mentioned combination receiving from above-mentioned photographic head transmit signal through, and blocks from above-mentioned first solution
First reflected signal of code device；
First capacitor, the DC component that the combination having passed through above-mentioned first buffer is transmitted signal removes and to above-mentioned first
Decoder transmits；And
Second capacitor, the DC component that the above-mentioned combination receiving from above-mentioned photographic head is transmitted signal removes and to above-mentioned second
Decoder transmits.
19. DVR according to claim 11 are it is characterised in that above-mentioned communication interface part includes：
Resistance, makes the above-mentioned combination receiving from above-mentioned photographic head transmit signal through, and by from the of above-mentioned first decoder
One reflected signal decay；
First capacitor, the DC component that the combination having passed through above-mentioned resistance is transmitted signal removes and to above-mentioned first decoder
Transmission；And
Second capacitor, the DC component that the above-mentioned combination receiving from above-mentioned photographic head is transmitted signal removes and to above-mentioned second
Decoder transmits.
20. DVR according to claim 11 are it is characterised in that above-mentioned communication interface part includes：
Buffer, makes the above-mentioned combination receiving from above-mentioned photographic head transmit signal through, and reduces from above-mentioned first decoder
The first reflected signal and from above-mentioned second decoder the second reflected signal impact；
First capacitor, the DC component that the combination having passed through above-mentioned buffer is transmitted signal removes and to the above-mentioned first decoding
Device transmits；And
Second capacitor, the DC component that the combination having passed through above-mentioned buffer is transmitted signal removes and to the above-mentioned second decoding
Device transmits.
21. DVR according to claim 11 are it is characterised in that above-mentioned communication interface part includes to connect from above-mentioned photographic head
The DC component that the above-mentioned combination received transmits signal removes and the single electricity to above-mentioned first decoder and the transmission of the second decoder
Container.
A kind of 22. image monitorings, including：
Photographic head, the image of processing screened simultaneously generates image data, and above-mentioned image data is respectively converted into Imitation conveyance letter
Number and digital transmission signal, and generate combine above-mentioned Imitation conveyance signal and digital transmission signal combination transmission signal；With
And
DVR, is analyzed by the above-mentioned combination being transmitted from above-mentioned photographic head is transmitted with signal, is included in above-mentioned combination and passes
The above-mentioned Imitation conveyance signal of the number of delivering letters is converted to the first image data, is included in the above-mentioned numeral that above-mentioned combination transmits signal
Transmission signal is converted to the second image data, and selects at least one of above-mentioned first image data and second image data
Display or video recording.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0066963 | 2014-06-02 | ||
| KR1020140066963A KR101456251B1 (en) | 2014-06-02 | 2014-06-02 | Camera, dvr and video monitoring system comprising thereof |
| PCT/KR2015/004893 WO2015186914A1 (en) | 2014-06-02 | 2015-05-15 | Camera, dvr, and image monitoring system comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106464846A true CN106464846A (en) | 2017-02-22 |
Family
ID=51998989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580029146.1A Pending CN106464846A (en) | 2014-06-02 | 2015-05-15 | Camera, DVR, and image monitoring system comprising same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101456251B1 (en) |
| CN (1) | CN106464846A (en) |
| WO (1) | WO2015186914A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100508A1 (en) * | 2017-11-21 | 2019-05-31 | 深圳市大疆创新科技有限公司 | Head-mounted display, aircraft, and image transmission system |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299022A (en) * | 1989-10-31 | 1994-03-29 | Sony Corporation | Portable video camera and recording apparatus |
| JPH07312748A (en) * | 1994-05-19 | 1995-11-28 | Sanyo Electric Co Ltd | Catv system and modulation system discrimination method in catv system |
| CN1129384A (en) * | 1994-11-28 | 1996-08-21 | 大宇电子株式会社 | Apparatus for decoding a signal encoded by using trellis coded modulation |
| KR20040062332A (en) * | 2003-01-02 | 2004-07-07 | 삼성전자주식회사 | Apparatus of Transmission Adapting Band-Stop Filter |
| CN1893654A (en) * | 2005-06-27 | 2007-01-10 | 株式会社日立制作所 | Video signal transmission method and video processing system |
| CN1976422A (en) * | 2005-11-29 | 2007-06-06 | 株式会社东芝 | Receiving system |
| CN201025725Y (en) * | 2007-03-01 | 2008-02-20 | 创惟科技股份有限公司 | Video decompression module for network video camera |
| CN101835034A (en) * | 2010-05-27 | 2010-09-15 | 王巍 | Crowd characteristic counting system |
| CN101917603A (en) * | 2010-08-27 | 2010-12-15 | 高凌 | Omni-bearing spherical shooting and monitoring system |
| CN102365832A (en) * | 2009-01-30 | 2012-02-29 | 倍威科技有限公司 | Mixed format media transmission systems and methods |
| JP2013197723A (en) * | 2012-03-16 | 2013-09-30 | Hitachi Kokusai Yagi Solutions Inc | Video monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100439042B1 (en) * | 2001-11-23 | 2004-07-05 | 씨엔씨엔터프라이즈 주식회사 | Digital video recording system having a data file backup function in the distance |
-
2014
- 2014-06-02 KR KR1020140066963A patent/KR101456251B1/en active IP Right Grant
-
2015
- 2015-05-15 CN CN201580029146.1A patent/CN106464846A/en active Pending
- 2015-05-15 WO PCT/KR2015/004893 patent/WO2015186914A1/en active Application Filing
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299022A (en) * | 1989-10-31 | 1994-03-29 | Sony Corporation | Portable video camera and recording apparatus |
| JPH07312748A (en) * | 1994-05-19 | 1995-11-28 | Sanyo Electric Co Ltd | Catv system and modulation system discrimination method in catv system |
| CN1129384A (en) * | 1994-11-28 | 1996-08-21 | 大宇电子株式会社 | Apparatus for decoding a signal encoded by using trellis coded modulation |
| KR20040062332A (en) * | 2003-01-02 | 2004-07-07 | 삼성전자주식회사 | Apparatus of Transmission Adapting Band-Stop Filter |
| CN1893654A (en) * | 2005-06-27 | 2007-01-10 | 株式会社日立制作所 | Video signal transmission method and video processing system |
| CN1976422A (en) * | 2005-11-29 | 2007-06-06 | 株式会社东芝 | Receiving system |
| CN201025725Y (en) * | 2007-03-01 | 2008-02-20 | 创惟科技股份有限公司 | Video decompression module for network video camera |
| CN102365832A (en) * | 2009-01-30 | 2012-02-29 | 倍威科技有限公司 | Mixed format media transmission systems and methods |
| CN101835034A (en) * | 2010-05-27 | 2010-09-15 | 王巍 | Crowd characteristic counting system |
| CN101917603A (en) * | 2010-08-27 | 2010-12-15 | 高凌 | Omni-bearing spherical shooting and monitoring system |
| JP2013197723A (en) * | 2012-03-16 | 2013-09-30 | Hitachi Kokusai Yagi Solutions Inc | Video monitoring system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019100508A1 (en) * | 2017-11-21 | 2019-05-31 | 深圳市大疆创新科技有限公司 | Head-mounted display, aircraft, and image transmission system |
| CN110352594A (en) * | 2017-11-21 | 2019-10-18 | 深圳市大疆创新科技有限公司 | Head-mounted display apparatus, aircraft and image delivering system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101456251B1 (en) | 2014-10-31 |
| WO2015186914A1 (en) | 2015-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5486853A (en) | Electrical cable interface for electronic camera | |
| US8305448B2 (en) | Selective privacy protection for imaged matter | |
| CN101335833B (en) | Image pickup device and switching method for image pickup device | |
| JP2001086391A (en) | Image pickup unit | |
| CN102014277B (en) | Video monitoring system, video monitoring method and spherical camera | |
| KR101279855B1 (en) | Transmission and video quality adaptive security camera and dvr system | |
| KR102641184B1 (en) | High definition analog video and control link for automotive applications | |
| CN105611324B (en) | Simulate high-resolution video transfer system | |
| CN104702906A (en) | High-resolution monitoring video system and control method thereof | |
| CN104038711B (en) | Imageing sensor and the monitoring system including it | |
| US20240339465A1 (en) | Image sensor with image receiver and automatic image switching | |
| Nakano et al. | Digital still camera system for megapixel CCD | |
| EP2963929A1 (en) | A method for configuration of video stream output from a digital video camera | |
| CN106464846A (en) | Camera, DVR, and image monitoring system comprising same | |
| US5583569A (en) | Video camera having asynchronous digital output including header data | |
| JP2001086394A (en) | Image-pickup unit | |
| CN112311959A (en) | Multi-channel analog camera data splicing processing system and method | |
| JP2003319378A (en) | Supervisory camera system and transmission method for video signal | |
| JP4467224B2 (en) | Image transmission / reception system, image transmission apparatus, and image reception apparatus | |
| KR100736048B1 (en) | Apparatus for transmission to digital image data | |
| KR101444844B1 (en) | Monitoring system correcting transmission delay | |
| US20080036859A1 (en) | Digital surveillance camera | |
| JP2000244796A (en) | Camera system | |
| KR20110026677A (en) | Control method of monitoring camera and monitoring camera adopting the same | |
| CN106484586A (en) | A kind of reception of computer electromagnetic information leakage and playback system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |