A kind of low-light (level) web camera
Technical field
This utility model belongs to camera technique field, is specifically related to a kind of web camera, particularly a kind of low-light (level) net
Network video camera.
Background technology
Web camera is that one combines a new generation's video camera produced by traditional cameras and network technology, and it can be by
Video content carries out remote transmission by network, and at present, web camera has been widely used in various safety monitoring project,
For realizing remote audio-video monitoring, low-light (level) web camera typically requires in use and utilizes infrared lamp to carry out light filling, by
In existing low-light (level) web camera usual only one of which photo-sensitive cell, so, when video camera is in light filling critical point, logical
Often infrared lamp can be caused constantly to flash due to being continually changing of detected value of photo-sensitive cell, thus cause returning the frequent of image
Flicker, is additionally, since CCTV camera caloric value after working long hours relatively big, and the most radiating effect of existing video camera
The best, it is easy to affect the service life of video camera due to accumulation of heat;Therefore it provides a kind of reasonable in design, heat radiation
Low-light (level) web camera effective, passback image stabilization is very important.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, thus provides a kind of reasonable in design, heat radiation
Effective, the low-light (level) web camera of passback image stabilization.
The purpose of this utility model is achieved in that a kind of low-light (level) web camera, and it includes housing, described shell
Body be internally provided with temperature sensor, described temperature sensor connects controller, and described controller is provided with nothing
Line communication module, described controller connects and has timing unit and driving means, the output shaft of described driving means sets
Being equipped with heat abstractor, the right-hand member of described housing is provided with camera lens, and the periphery of described camera lens right side sets
Being equipped with infrared lamp, the left end of described camera lens is provided with light sensor A and light sensor B, described photosensitive biography
Sensor A arrange threshold value more than light sensor B threshold value, described light sensor A and the left end of light sensor B are set
Being provided with optical filter, the left end of described optical filter is provided with video output component, the left side of described housing and lower surface
On be respectively arranged with air vent and charging inlet, described charging inlet by charging control circuit connect have accumulator.
Described infrared lamp is uniformly distributed in the periphery of camera lens right side.
Described wireless communication module is wireless WIFI communication module or GPRS communication module.
Described infrared lamp is LED infrared lamp.
It is provided with Air Filter in described air vent.
It is provided with dust-proof seal ring between described camera lens and housing.
The beneficial effects of the utility model: this utility model controls to take the photograph by light sensor A and light sensor B respectively
The closedown of camera infrared lamp and unlatching, and light sensor A arrange threshold value more than light sensor B threshold value is set, so,
After opening infrared lamp owing to ambient light illumination reaches the arranging threshold value of light sensor B, ambient light illumination is still in photosensitive
Sensors A and light sensor B arrange between threshold value, infrared lamp will be caused to close due to increasing suddenly of intensity of illumination
Close;Equally, after closing infrared lamp owing to ambient light illumination reaches the arranging threshold value of light sensor A, ambient light illumination is still
Be in light sensor A and light sensor B arranges between threshold value, will not cause red due to reducing suddenly of intensity of illumination
Outer lamp is opened, thus avoids the flicker of infrared lamp at light filling critical point, it is ensured that return the clear and stable of image;This practicality is new
Type detects the temperature of enclosure interior in real time by temperature sensor, and when enclosure interior temperature drift, controller controls to drive dress
Putting drive heat abstractor to start working, be prevented effectively from enclosure interior heat accumulates the impact on video camera service life;This reality
At novel middle charging inlet, there is accumulator by charging control circuit connection, so can ensure that in the case of unexpected power-off
Video camera still is able to work on;Timing unit can assist the function realizing this utility model timed power on/off;This total reality
With novel, there is reasonable in design, good heat dissipation effect, the advantage of passback image stabilization.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of low-light (level) web camera.
In figure: 1, housing 2, temperature sensor 3, controller 4, wireless communication module 5, timing unit 6, fill
Electrical interface 7, charging control circuit 8, accumulator 9, air vent 10, Air Filter 11, driving means 12, heat radiation dress
Put 13, video output component 14, optical filter 15, light sensor A 16, camera lens 17, dust-proof seal ring
18, infrared lamp 19, light sensor B.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described explanation.
Embodiment 1
As it is shown in figure 1, a kind of low-light (level) web camera, it includes housing 1, described housing 1 be internally provided with temperature
Degree sensor 2, described temperature sensor 2 connects controller 3, and described controller 3 is provided with wireless communication module 4,
Connect on described controller 3 and have timing unit 5 and driving means 11, the output shaft of described driving means 11 is provided with scattered
Thermal 12, the right-hand member of described housing 1 is provided with camera lens 16, and the periphery of described camera lens 16 right side sets
Being equipped with infrared lamp 18, the left end of described camera lens 16 is provided with light sensor A15 and light sensor B19, described
Light sensor A15 arrange threshold value more than light sensor B19 threshold value, described light sensor A15 and light are set
The left end of dependent sensor B19 is provided with optical filter 14, and the left end of described optical filter 14 is provided with video output component 13, described
The left side of housing 1 and lower surface on be respectively arranged with air vent 9 and charging inlet 6, described charging inlet 6 is by charging
Control circuit 7 connects accumulator 8.
This utility model controls the pass of infrared lamp of vidicon 18 respectively by light sensor A15 and light sensor B19
Closing and opening opens, and light sensor A15 arrange threshold value more than light sensor B19 threshold value is set, so, due to environment
After illuminance reaches the arranging threshold value of light sensor B19 and opens infrared lamp 18, ambient light illumination is still in light sensor
A15 and light sensor B19 arranges between threshold value, infrared lamp 18 will be caused to close due to increasing suddenly of intensity of illumination
Close;Equally, after closing infrared lamp 18 owing to ambient light illumination reaches the arranging threshold value of light sensor A15, ambient lighting
Degree arranges between threshold value still in light sensor A15 and light sensor B19, will not be due to the unexpected reduction of intensity of illumination
And cause infrared lamp 18 to be opened, thus avoid the flicker of infrared lamp 18 at light filling critical point, it is ensured that passback image clear and
Stable;Impurity in video signal can be filtered by video output component 13, it is ensured that video pictures clear;This practicality is new
In type, temperature sensor 2 is for detection temperature within housing 1 in real time, and when housing 1 internal temperature is higher, controller 3 controls
Driving means 11 drives heat abstractor 12 to start working, and is prevented effectively from the accumulation of housing 1 internal heat to video camera service life
Impact;Connected by charging control circuit 7 at charging inlet 6 and have accumulator 8, so can ensure that the situation in unexpected power-off
Lower video camera still is able to work on;Total this utility model has reasonable in design, good heat dissipation effect, passback image stabilization
Advantage.
Embodiment 2
As it is shown in figure 1, a kind of low-light (level) web camera, it includes housing 1, described housing 1 be internally provided with temperature
Degree sensor 2, described temperature sensor 2 connects controller 3, and described controller 3 is provided with wireless communication module 4,
Connect on described controller 3 and have timing unit 5 and driving means 11, the output shaft of described driving means 11 is provided with scattered
Thermal 12, the right-hand member of described housing 1 is provided with camera lens 16, and the periphery of described camera lens 16 right side sets
Being equipped with infrared lamp 18, the left end of described camera lens 16 is provided with light sensor A15 and light sensor B19, described
Light sensor A15 arrange threshold value more than light sensor B19 threshold value, described light sensor A15 and light are set
The left end of dependent sensor B19 is provided with optical filter 14, and the left end of described optical filter 14 is provided with video output component 13, described
The left side of housing 1 and lower surface on be respectively arranged with air vent 9 and charging inlet 6, described charging inlet 6 is by charging
Control circuit 7 connects accumulator 8, and described infrared lamp 18 is uniformly distributed in the periphery of camera lens 16 right side, described
Wireless communication module 4 be wireless WIFI communication module or GPRS communication module, described infrared lamp 18 is LED infrared lamp, institute
It is provided with Air Filter 10 in the air vent 9 stated, between described camera lens 16 and housing 1, is provided with dust-proof seal ring 17.
This utility model controls the pass of infrared lamp of vidicon 18 respectively by light sensor A15 and light sensor B19
Closing and opening opens, and light sensor A15 arrange threshold value more than light sensor B19 threshold value is set, so, due to environment
After illuminance reaches the arranging threshold value of light sensor B19 and opens infrared lamp 18, ambient light illumination is still in light sensor
A15 and light sensor B19 arranges between threshold value, infrared lamp 18 will be caused to close due to increasing suddenly of intensity of illumination
Close;Equally, after closing infrared lamp 18 owing to ambient light illumination reaches the arranging threshold value of light sensor A15, ambient lighting
Degree arranges between threshold value still in light sensor A15 and light sensor B19, will not be due to the unexpected reduction of intensity of illumination
And cause infrared lamp 18 to be opened, thus avoid the flicker of infrared lamp 18 at light filling critical point, it is ensured that passback image clear and
Stable;Impurity in video signal can be filtered by video output component 13, it is ensured that video pictures clear;This practicality is new
In type, temperature sensor 2 is for detection temperature within housing 1 in real time, and when housing 1 internal temperature is higher, controller 3 controls
Driving means 11 drives heat abstractor 12 to start working, and is prevented effectively from the accumulation of housing 1 internal heat to video camera service life
Impact;Connected by charging control circuit 7 at charging inlet 6 and have accumulator 8, so can ensure that the situation in unexpected power-off
Lower video camera still is able to work on;The stable performance of LED infrared lamp 18, service life is long;Air Filter 10 in air vent 9 can
Internal to prevent dust from entering housing 1;Dust-proof seal ring 17 between camera lens 16 and housing 1, it is possible to play effective
Shockproof effect, and it can be avoided that the entrance of dust;Total this utility model has reasonable in design, good heat dissipation effect, returns
Blit is as steady and audible advantage.