A kind of fully photosensitive multiple image sensor video camera
Technical field
The utility model relates to a kind of video camera, and more particularly, it relates to a kind of fully photosensitive multiple image sensor video camera.
Background technology
Traditional visible ray and near-infrared video camera are all often imageing sensors, but because imageing sensor is more extensive to wavelength of light induction range, also infrared ray can be sensed while sensing visible ray daytime, video camera can be caused like this can not to calculate color exactly, day images color colour cast.So, time early stage, in order to make image effect good, also there is two ccd video camera.Daytime comes photosensitive with the CCD that is only responded to colourama, switches to night the black-white CCD of one induction infrared light to solve the problem of colour cast.Afterwards, after two optical-filter switcher technology occurs, the video camera of day and night has a filter to end infrared ray daytime, ended visible ray evening to allow clear picture, and two ccd video camera fades out market gradually.Along with the development of monitoring technique, camera review resolution is more and more higher, also gets more and more to the utilization of the light of different wave length.Especially the natural environment in normal domestic field, daylight is strong, and brightness is high, can collect the visible light video of high definition.Night, by the induced environment low light level or near-infrared, the sensitive Low Resolution Sensor of employing preferably carried out imaging because do not have visible ray.Therefore, adopt multiple imageing sensor to share image that a camera lens obtains concentricity axle, utilizes light more fully, has certain needs.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of fully photosensitive multiple image sensor video camera, is no matter by day or at night, can both captures image clearly preferably.
For achieving the above object, the utility model provides following technical scheme:
A kind of fully photosensitive multiple image sensor video camera, comprise casing, power module, main control module, communication module, supplementary lighting module, image processing module, filtration module and camera lens, described communication module, supplementary lighting module and image processing module are all electrically connected with main control module, described image processing module comprises at least two imageing sensors, wherein, each imageing sensor is arranged in order according to resolution and wavelength; Also comprise for switching the handover module of each imageing sensor to service position.
Further, image processing module comprises the first imageing sensor, the second imageing sensor.
Further, described handover module comprises holder and stepping motor, described stepping motor is electrically connected with main control module, described holder is arranged at intervals with along its length two fixed bits, described first imageing sensor and the second imageing sensor are separately fixed in two fixed bits, the bottom of described holder is provided with tooth bar along its length, and the rotating shaft of described stepping motor is provided with and tooth bar meshed gears.
Further, described handover module comprises the first holder and the second holder, the collar and stepping motor, described stepping motor is electrically connected with main control module, the described collar is placed in the rotating shaft of stepping motor, and described first holder and the second holder are fixed on the perisporium of the described collar along the circumferencial direction of the collar.
Further, also comprise light detection module, described light detection module is electrically connected with main control module.
Compared with prior art, the utility model has the advantages that: by above scheme, by day, the first imageing sensor can be utilized and be aided with filter to obtain image clearly, and to evening, if have secondary light source light filling (comprising visible ray or near-infrared) and light intensity can meet high-definition image transducer needs, high-definition image transducer can be allowed to work on, if high-definition image transducer needs can not be met without secondary light source light filling or secondary light source light filling intensity (comprising visible ray or near-infrared), the second imageing sensor of the low low-light (level) low resolution of camera switching paired light requirement then can be allowed to carry out imaging.Because the resolution of the second imageing sensor is low, relative also lower to the requirement of light, so can use at night.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of video camera in the utility model;
Fig. 2 is the schematic diagram of a kind of execution mode of handover module in the utility model;
Fig. 3 is the schematic diagram of the another kind of execution mode of handover module in the utility model.
Reference numeral: 1, stepping motor, 2, gear, 3, tooth bar, 4, holder, the 5, first holder, the 6, second holder, the 7, first imageing sensor, the 8, second imageing sensor, 9, connecting rod, 10, the collar, 11, camera lens.
Embodiment
Referring to figs. 1 through Fig. 3, embodiment of the present utility model is described further.
A kind of fully photosensitive multiple image sensor video camera, comprise casing, power module, main control module, communication module, supplementary lighting module, image processing module, filtration module and camera lens 11, described communication module, supplementary lighting module and image processing module are all electrically connected with main control module, described image processing module comprises at least two imageing sensors, wherein, each imageing sensor is arranged in order according to resolution and wavelength; Also comprise for switching the handover module of each imageing sensor to service position.In the present embodiment, illustrate with two imageing sensors, described image processing module comprises the first imageing sensor 7, second imageing sensor 8, the resolution of described first imageing sensor 7 is all not identical with the second imageing sensor 8 with wavelength, can be set to, first imageing sensor 7 is a kind of high-definition image transducer, its resolution can reach ten million, and the second imageing sensor 8 is a kind of imageing sensor of low resolution, its resolution is about 1,000,000, in addition, in order to the switching between the first imageing sensor 7 and the second imageing sensor 8 can be realized, the handover module of the position for switching the first imageing sensor 7 and the second imageing sensor 8 is also provided with in video camera, and then when can realize that light is strong by day, the first imageing sensor 7 is utilized to take, and when night, the second imageing sensor 8 is utilized to take.
In one embodiment, above-mentioned handover module comprises holder 4 and stepping motor 1, stepping motor 1 is electrically connected with main control module, holder 4 is arranged at intervals with along its length two fixed bits, first imageing sensor 7 and the second imageing sensor 8 are separately fixed in two fixed bits, the bottom of holder 4 is provided with tooth bar 3 along its length, and the rotating shaft of stepping motor 1 is provided with and tooth bar 3 meshed gears 2.Therefore, in this embodiment, the operation principle of handover module is, main control module is rotated by control step motor 1, and with the kind of drive of gear 2 tooth bar 3, drive holder 4 in camera lens 11 front left and right or move up and down, realize the first imageing sensor 7 or the second imageing sensor 8 is aimed at camera lens 11.In the installation of reality, can arrange corresponding slide rail in the inside of casing, then holder 4 can coordinate with described slide rail slippage.In this embodiment, the inside of casing is provided with for the fixing mounting groove (not shown) of stepping motor 1, stepping motor 1 can be arranged in this mounting groove.
In another embodiment, handover module comprises the first holder 54 and the second holder 64, the collar 10 and stepping motor 1, stepping motor 1 is electrically connected with main control module, the collar 10 is placed in the rotating shaft of stepping motor 1, and the first holder 54 and the second holder 64 are fixed on the perisporium of the collar 10 along the circumferencial direction of the collar 10.In this embodiment, as we can see from the figure, the first holder 54 and the second holder 64 are fixed on the collar 10 respectively by a connecting rod 9, and the angle of two connecting rods 9 is 90 degree.Therefore, in this embodiment, the operation principle of handover module is, main control module is rotated by control step motor 1, make the first holder 54 and the second holder 64 around the axis of rotation of motor, realize the first imageing sensor 7 or the second imageing sensor 8 is aimed at camera lens 11.In this embodiment, the inside of casing is provided with for the fixing mounting groove (not shown) of stepping motor 1, stepping motor 1 can be arranged in this mounting groove.
On the basis of above-mentioned two embodiments, the video camera that the utility model provides also comprises light detection module, and light detection module is electrically connected with main control module.By above scheme, can distinguish the current environment of video camera by light detection module is daytime or night, simultaneously, light detection module carries corresponding detection signal to main control module, main control module carrys out control step motor 1 according to the difference of this detection signal and rotates, to realize the switching between the first imageing sensor 7 and the second imageing sensor 8.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.