CN203563151U - Infrared network camera with adjustable pulse width - Google Patents
Infrared network camera with adjustable pulse width Download PDFInfo
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- CN203563151U CN203563151U CN201320707865.2U CN201320707865U CN203563151U CN 203563151 U CN203563151 U CN 203563151U CN 201320707865 U CN201320707865 U CN 201320707865U CN 203563151 U CN203563151 U CN 203563151U
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Abstract
The utility model discloses an infrared network camera with an adjustable pulse width. The camera comprises an infrared optical camera, a visible light camera, an RJ45 interface, an infrared lamp and a processor. The processor is integrated with a video codec circuit, a pulse width modulation circuit and a video analysis algorithm circuit. A digital signal output terminal of the infrared optical camera is connected with a digital signal input terminal of the video analysis algorithm circuit. The video analysis algorithm circuit is connected with the pulse width modulation circuit. An output terminal of the pulse width modulation circuit is connected with the infrared lamp. A video signal output terminal of the visible light camera is connected with a video signal input terminal of the video codec circuit. A communication signal terminal of the processor is connected with the RJ45 interface. The camera can provide data acquisition for forest fireproof monitoring in an all-weather, all-terrain, 7*24 hour, high-quality and multiple-application mode.
Description
Technical field
The utility model relates to protection and monitor field, and particularly a kind of infrared eye, is more specifically a kind of pulse duration adjustable infrared network camera instrument.
Background technology
Forest has air cleaning, fixing of soil and conservation of water, maintain the ecological balance, the effect of the means of production is provided.In recent years, China's sandstorm takes place frequently, and desertification constantly aggravates, and this and forest suffer to destroy close ties.Every year, all can there is the forest fire of some in the whole world.Forest fire, has feature sudden, uncertain, that the short time is caused huge breaking-up, and extensive forest fire is often caused by unconspicuous hidden fire.
At first, the mankind adopt and to build sightseeing tower, artificial on dutyly carry out early warning forest fire, and this mode, can only find larger forest fires; Afterwards, by cruising to monitor the forest zone that forest fire danger class is high in the air, but cruiser was away from earth's surface, was difficult to equally find hidden fire or little fire, and the cost that cruises is in the air high, and the number of times that cruises is limited, cannot realize round-the-clock monitoring; At present, some large forest zones of China have adopted satellite monitoring, but satellite is more away from earth surface, its to the resolution of temperature at 1000 square meters left and right, the hidden fire of more difficult discovery or little fire.
In recent years, the video frequency monitoring system based on visible ray has been installed in the many forest zones of China.This system, according to the geographical features in forest zone, forest zone is divided into a plurality of less guarded regions, at each guarded region, control point is set, video camera in control point setting based on visible ray, video camera based on visible ray is transferred to long-range Surveillance center by the forest zone vedio data collecting, Surveillance center is by computer comparative analysis image aspects feature, find hidden fire and little fire in forest, the monitoring means such as it has overcome to a certain extent artificial loud and clear prestige, cruises in the air, satellite monitoring are in the technological deficiency of finding on hidden fire and little fire.But this video camera based on visible ray, does not possess thermometric, night vision function, can only be operated in intensity of illumination good daytime, and the morphological feature difference of cloud and mist and forest fires cannot be come.Recently, in forest fire protection monitoring, bring into use active infra-red network camera instrument, it is to utilize special infrared lamp artificially to produce infrared radiation, radiation illumination scenery and environment, infrared video camera senses the infrared light that surrounding environment reflects, thereby realizes night vision function.There is following defect in this infrared video camera:
1. this infrared video camera does not possess video image brightness analysis ability, cannot distinguish that whether enter the Infrared of video camera too much or very few.
2. the infrared lamp that this infrared video camera adopts does not possess the automatic adjustment capability of supply current, conventionally the supply current of infrared lamp is set as to fixed value, supply current is set too low, infrared lamp brightness meeting is less, affect monitoring effect, supply current is set too high, when the numerical value of supply current approaches maximum rating, brightness changes very little, even can decline, electric current hear rate sharply raises simultaneously, dissipation of heat is not gone out, the one, affect useful life of infrared lamp, the 2nd, can have influence on the work of video camera uncooled detector, when surpassing uniform temperature, uncooled detector just there will be guard mode, video camera will be stopped work.
Utility model content
While adopting active infra-red network camera instrument to carry out forest fire protection monitoring in order to overcome prior art, the operating current of infrared lamp does not possess self adaptation adjustment, conventionally adopt normal value to set, when the operating current of infrared lamp is set too small, affect image quality, set the excessive useful life that affects infrared lamp, also can have influence on the technological deficiency of the operating state of uncooled detector, the utility model provides a kind of pulse duration adjustable infrared network camera instrument simultaneously.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of pulse duration adjustable infrared network camera instrument, comprise infrared optics video camera, visible light camera, RJ45 interface, infrared lamp, the processor of cortex-M framework, described processor is integrated Video Codec circuit, pulse width modulation circuit, video analysis algorithm circuit, the digital signal output end of described infrared optics video camera connects the digital signal input end of video analysis algorithm circuit, described video analysis algorithm circuit connects pulse width modulation circuit, the output of described pulse width modulation circuit connects infrared lamp, the VT of described visible light camera connects the video signal input terminal of Video Codec circuit, the signal of communication end of described processor is connected with RJ45 interface.
When the utility model comes into operation, the first step, adjustment equipment: set the network ip address that control point rushes width-adjusting infrared network video camera, adjust the angle lens of infrared optics video camera and visible light camera, make visual angle, visual field, the sighting distance of video camera meet monitoring requirement, the angle of adjusting infrared lamp, makes the angle of infrared lamp consistent with the angle lens of infrared optics video camera; Second step, adds electric test equipment: start power supply, confirm that whether the operating state of equipment is normal, after equipment is normal, just equipment investment is used; The 3rd step; carry out monitor task: in illuminance during higher than critical value; visible light camera enters mode of operation; infrared optics video camera is in shutdown mode; infrared lamp is closed, and visible light camera gathers the fact in forest zone, sends the video signal collecting to processor by video-out port; processor is encoded video signal, and the data after coding are transmitted to the Surveillance center of far-end by RJ45 interface.In illuminance during lower than critical value, thermal camera is in mode of operation, infrared lamp is opened, visible light camera enters shutdown mode, the infrared signal that infrared optics camera acquisition arrives, after a series of processing of circuit, become digital signal, then send the video analysis algorithm circuit of processor to, video analysis algorithm circuit carries out Algorithm Analysis to the image digital signal after changing, from image, analyze dynamic object, and send the result of analysis to pulse width modulation circuit, pulse width modulation circuit changes the duty ratio of pulse duration according to analysis result, control infrared lamp brightness, processor crosses by these digital signals the Surveillance center that RJ45 interface is transmitted to far-end.Under cloud and mist environment in illuminance higher than critical value, can start infrared optics video camera and visible light camera simultaneously, infrared lamp is opened, two video cameras are passed to processor by the forest zone video signal collecting, after treatment, processor is transmitted to it Surveillance center of far-end by RJ45 interface.
Adopt infrared lamp as lighting source, have that imaging clearly, contrast are high, the feature that is not subject to that environment light source affects etc.; Adopt video analysis algorithm circuit and pulse width modulation circuit, according to the picture quality collecting, adjust the brightness of infrared lamp, thereby provide best illumination scheme for infrared optics video camera, guarantee infrared lamp stable working state, reliable, the useful life of improving infrared lamp simultaneously; Adopt twin camera pattern, be conducive to when intensity of illumination is good, adopt visible light camera, obtain better image information and more ambient condition information, the infrared optics video camera that employing can thermometric can better be realized monitoring under cloud and mist weather condition, while infrared optics video camera, there is night vision function, can realize forest zone monitoring at environment at night, thereby realize round-the-clock, 7X24 hour monitoring to forest zone.Adoption Network interface can be by the real-time Surveillance center that is transferred to far-end of the data that collect.
For better according to infrared lamp illuminating effect, automatically adjust the operating current of infrared lamp, guarantee operating current voltage constant simultaneously, improve the image quality of infrared optics video camera, as preferably, described pulse width modulation circuit comprises peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit, on-off controller, and described on-off controller connects peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit.
Conventionally the pulse width modulation circuit adopting in other electronic equipments is in the situation that control circuit output frequency is constant, by Voltage Feedback, adjusts its duty ratio, thereby realizes the operating current of adjusting infrared lamp.Although this mode can solve the insufficient light bringing or the electric current of steady job electric current and cause too greatly the problem reducing in infrared lamp unstable working condition, useful life.The but adjustment of this voltage feedback, adjusting range is limited, adjusts effect also very general.
More than the ability to work of pulse-width adjustable infrared network camera instrument infrared lamp and the further improvement of work quality.Because pulse width modulation circuit is supported peak value base current, constant on-time and the contour flexible mode of operation of frequency modulation(FM).Constant on-time pattern adopts single-level power factor correction, can raise the efficiency; Peak value base current has high efficiency and realizes the defencive functions such as under-voltage, overcurrent; Frequency modulation(FM) have efficiency high, respond fast feature and be relatively applicable to using under light load currents condition.Adopt on-off controller automatically according to infrared imaging quality, to be switched to fast best pulse width adjusting circuit.
In order to improve the matching of infrared lamp and infrared optics video camera, as preferably, described infrared lamp, comprises aluminium base matrix lamp socket, a plurality of infrared lamp pearl, described aluminium base matrix lamp socket is coaxially arranged on infrared optics video camera, and described infrared lamp pearl matrix spread configuration is on aluminium base matrix lamp socket.
Conventionally there is people selecting video camera, camera lens, protective cover, power supply, even after installation, just consider infrared lamp, in practical application, the matching of infrared lamp and video camera is to select the most important investigation factor of infrared lamp, this matching, from structure, be mainly reflected on mount pad, good mount pad is the important guarantee of outstanding infrared illumination scheme.
It is more than the further improvement of infrared lamp and the infrared photography machine matching of pulse-width adjustable infrared network camera instrument.Conventionally lamp socket adopt plastics that thermoplasticity is good as the basis material of lamp socket to adapt to high thermal environment.The job stability of pedestal is to have solved, if the heat that infrared lamp pearl produces cannot leave in time, this accumulation of heat is many can cause infrared lamp pearl to be lost efficacy, and also can have influence on the useful life of infrared lamp pearl.Infrared lamp comprise a plurality of infrared lamp pearls and and be coaxially arranged on the lamp socket on infrared optics video camera, this project organization is conducive to guarantee that the angle of infrared lamp and infrared optics camera lens is consistent, improved the image quality of thermal camera, this structure is conducive to installation, test, the maintenance of infrared lamp simultaneously; The aluminium base matrix of employing high thermal conductivity can leave the heat of infrared lamp pearl generation in time as the matrix of mount pad, allow the work of infrared lamp pearl at a lower temperature, it has following beneficial effect: the one, and the useful life of raising infrared lamp pearl, the 2nd, do not have influence on the operating state of infrared optics video camera, the 3rd, infrared lamp pearl can be operated under larger operating current, and the luminous flux of infrared lamp pearl has just improved naturally; Adopt the mode of matrix that infrared lamp pearl is arranged on lamp socket, the one, guaranteed that the infrared light amount of radiation that infrared lamp produces is uniformly distributed, be conducive to improve the image quality of infrared optics video camera, the 2nd, guarantee that infrared light angle is consistent with infrared optics camera angle, be conducive to expand the guarded region of video camera.
For the forest zone environment for different, most economical, reasonable, effective infrared lamp scheme is provided, as preferably, described infrared lamp pearl is the combination of any one or Arbitrary Term in single-chip infrared lamp pearl, array infrared lamp pearl, dot-matrix type infrared lamp pearl.
Conventionally people can think, the brightness of infrared lamp pearl is higher, and infrared lamp pearl power is larger, infrared lamp pearl quantity is more, and infrared lamp is just better, in practice, find, the infrared lamp that is applicable to sunshine environment is only best, most economical, the most feasible pulse duration adjustable infrared network camera instrument infrared lamp.
It is more than the further improvement of the infrared lamp adaptive capacity to environment of pulse-width adjustable infrared network camera instrument.The features such as single-chip infrared lamp pearl, has production technology simple, and quality easily guarantees, caloric value is low, light emitting optical system is reasonable, can reach more than 100,000 hours in theory useful life.Adopt the pulse duration adjustable infrared network camera instrument of single-chip infrared lamp pearl simple in structure, with low cost, be easy to install, be applicable to illumination condition good, the control point that the visual field is openr, array infrared lamp pearl, there is long service life, in 2～3 years, light is without obvious decay, light is even, image quality is fine and smooth, the high lamp feature of definition, on product light channel structure, use aspherics glass lens, projected spot is very even, greatly improved monitoring night vision image sharpness, reach the new stage that can identify looks, the night vision image of the pulse duration adjustable infrared network camera instrument of employing array infrared lamp pearl is brighter, snow is few, without dark angle, image is evenly without dark angle, largely solved the flashlight effect of picture, can significantly promote video camera night vision effect, significantly reduce the volume of vedio data simultaneously, be applicable to illumination condition poor, the monitoring large control point of area, dot-matrix type infrared lamp pearl, has the features such as power is large, brightness is high, cost is low, volume is little, radiating treatment is good, can pass through separate lenses, regulates arbitrarily the distribution angle of light according to user demand.Adopt the pulse duration adjustable infrared network camera instrument of dot-matrix type infrared lamp pearl to there is the features such as brightness is high, volume is little, photoelectric conversion rate is high, lighting angle is wide, the life-span is long, rapid heat dissipation, be applicable to illumination condition complexity, the control point, forest zone that cloud and mist is many.Can also adopt above three kinds of lamp pearls to form infrared lamp according to the feature of guarded region.
In order to improve infrared lamp infrared radiation efficiency, as preferably, the P/N of described infrared lamp pearl luminescence chip knot material is GaAs.
It is more than the further improvement of the infrared lamp ability to work of pulse-width adjustable infrared network camera instrument.Large 5～6 times than silicon of the electron mobilities of the P/N knot of the infrared lamp pearl luminescence chip made from GaAs, have the advantages such as high frequency, temperature performance is good, noise is little, radianting capacity is strong.
Complete property in order to ensure infrared light collection, treatment system, as preferably, described infrared optics video camera comprises infrared optical lens, uncooled detector, front-end processing circuit, described infrared optical lens is coaxially arranged on the dead ahead of uncooled detector, described uncooled detector signal end connects the signal end of front-end processing circuit, and the digital output end of described front-end processing circuit connects the digital input end of processor.
It is more than the further improvement of the infrared data ' s acquisition disposal ability of pulse-width adjustable infrared network camera instrument.Adopt infrared optical lens to be coaxially arranged on the dead ahead of uncooled detector, can guarantee that like this uncooled detector can collect more infrared light; Adopt front-end processing circuit to anticipate the infrared data signal detecting, can reduce the live load of processor.
In order fundamentally to improve the detectivity of uncooled detector, job stability is high, as preferably, described uncooled detector, comprise thermoelectric refrigerating unit and be arranged on the micro-metering bolometer array in thermoelectric refrigerating unit, described micro-metering bolometer array comprises a plurality of temperature-sensitive elements, and described temperature-sensitive element is on the focal plane that matrix shape is arranged in uncooled detector.
Uncooled detector is mainly that the infrared radiation that temperature-sensitive element is detected gathers, integration, becomes current signal, becomes voltage signal again and export line by line.As the working method of temperature-sensitive element of sampling primary element and precision and the sampling efficiency that work quality directly has influence on sampling; The detectivity of temperature-sensitive element and imaging performance are subject to the impact of working temperature larger, only have and make all pixel temperature of detector array remain under certain identical constant room temperature as far as possible, could fundamentally improve the detectivity of pulse duration adjustable infrared network camera instrument.
Above scheme is the further improvement that pulse-width adjustable infrared network camera instrument obtains fire alarm video data ability.By thousands of temperature-sensitive element, the focal plane that adopts matrix-style to be arranged on uncooled detector forms micro-metering bolometer array, allow temperature-sensitive element under best image-forming condition, by the meticulousst mode, sample, thereby guarantee to obtain and collect best fire alarm video data under the infrared condition in existing outside; The thermoelectric refrigerating unit that temperature control is used is arranged on below micro-metering bolometer array, the temperature that it sets with normal operation of sensor by the voltage on sampling micro-metering bolometer array is compared, thereby the sense of current and the size that in adjustment refrigerator, flow through are controlled temperature, thereby guarantee that all pixel temperature of micro-metering bolometer array remain under certain identical constant room temperature, thereby guarantee that temperature-sensitive element has best detectivity and imaging performance.
For the ease of the application type of management pulse duration adjustable infrared network camera instrument, as preferably, pulse duration adjustable infrared network camera instrument also comprises peripheral interface units, and described peripheral interface units connects processor.
It is more than the further improvement of the application extension managerial ability of pulse-width adjustable infrared network camera instrument.Adopt peripheral interface units to increase necessary interface according to the needs of monitoring, convenient and practical, be convenient to the management of interface.
For the ease of the output input of two-way voice talkback, cradle head control, serial communication, vision signal, the output of alarm signal input, as preferably, described peripheral interface units comprises at least one in video input port, video-out port, warning input port, warning output port, phonetic entry mouth, voice output mouth, RS485 port, RS232 port.
It is more than the further improvement of the application extension ability of pulse-width adjustable infrared network camera instrument.Warning input port is for alarm signal input, and warning output port is for alarm signal output; RS485 port, for communicating by letter with The Cloud Terrace, to The Cloud Terrace sending controling instruction, receives the information such as angle that The Cloud Terrace returns.Also can be used for controlling lens focusing, aperture etc.; Phonetic entry mouth: for microphone signal input, the phonetic order of voice output Kou Kejiang Surveillance center outputs to loud speaker, is convenient to floor manager; RS232 port can be used for carrying out data communication with other equipment; Video input port is for being input to processor by the image of the visible light camera of native system, and video-out port is exported with pal mode for subsequent conditioning circuit is processed to infrared image later, by the direct monitor of video line, is convenient to field observation.
Compared with prior art, the beneficial effects of the utility model are:
1, a kind of pulse duration adjustable infrared of the utility model network camera instrument, the twin camera pattern that adopts infrared optics video camera and visible light camera to combine, be equipped with infrared lamp simultaneously and can automatically regulate according to infrared optics video camera imaging quality the pulse width modulation circuit of infrared lamp brightness of illumination, this pulse width modulation circuit, can be automatically for different forest zone environment, best infrared illumination scheme is provided, thereby improve the image quality of thermal camera, reduce the volume of vedio data, be convenient to pass through Internet Transmission.It can realize monitoring in, 7X24 round-the-clock to carrying out hour, simultaneously by its network interface by the real-time Surveillance center that is transferred to far-end of the data that collect.
2, a kind of pulse duration adjustable infrared of the utility model network camera instrument, its infrared lamp, adopts the lamp socket of aluminium base matrix, and infrared lamp pearl arranged in matrix is on lamp socket, and the integrated pulse width modulation circuit of simultaneous processor has good pressure-stabilizing constant flow effect.Pulse width modulation circuit comprises peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit, video analysis circuit according to processor, by on-off controller, select best width modulation circuit, arrived best infrared lamp power supply plan.Adopt this mount pad, guarantee that infrared lamp is coaxially arranged on infrared optics video camera.It is consistent that these features can realize the light angle of infrared lamp and the angle lens of thermal camera easily, simultaneously can guarantee that the infrared light amount of radiation that infrared lamp sends is uniformly distributed, and is conducive to improve the penetration capacity of the cloud and mist of infrared light, improves infrared imaging quality; The heat that the lamp socket of aluminium base matrix can produce infrared lamp pearl, leaves in time, guarantees that infrared lamp pearl works under larger operating current, and the use of pressure-stabilizing constant flow circuit, more can guarantee that infrared lamp pearl has longer useful life simultaneously.
3, a kind of pulse duration adjustable infrared of the utility model network camera instrument, its infrared lamp, adopting GaAs is the infrared lamp pearl of luminescence chip P/N knot material, and infrared lamp pearl can be any one in single-chip infrared lamp pearl, array infrared lamp pearl, dot-matrix type infrared lamp pearl.This design can make infrared lamp have high frequency, temperature performance is good, noise is little, radianting capacity is strong feature, has good infrared light and delivers ability, and can guarantee provides suitable illumination scheme by most economical scheme for various forest zones environment simultaneously.
4, a kind of pulse duration adjustable infrared of the utility model network camera instrument, adopts thermoelectric refrigerating unit and the uncooled detector that is arranged on the micro-metering bolometer array in thermoelectric refrigerating unit, the infrared optics video camera of infrared optical lens, front-end processing circuit.This design has guaranteed that pulse duration adjustable infrared network camera instrument has very strong image data acquiring ability, has corresponding data-handling capacity simultaneously.
5, a kind of pulse duration adjustable infrared of the utility model network camera instrument, adopt peripheral interface units that various expanded application ports are set, be conducive to develop better and use the expanded application of pulse duration adjustable infrared network camera instrument to meet forest fire monitoring.
The utility model finally realizes round-the-clock, full region, 7X24 hour, high-quality, answer land used to provide data acquisition for forest fire protection monitoring more.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated, embodiment of the present utility model is not limited to this.
Embodiment mono-:
As shown in Figure 1, the utility model, comprise infrared optics video camera, visible light camera, RJ45 interface, infrared lamp, processor, described processor is integrated Video Codec circuit, pulse width modulation circuit, video analysis algorithm circuit, the digital signal output end of described infrared optics video camera connects the digital signal input end of video analysis algorithm circuit, described video analysis algorithm circuit connects pulse width modulation circuit, the output of described pulse width modulation circuit connects infrared lamp, the VT of described visible light camera connects the video signal input terminal of Video Codec circuit, the signal of communication end of described processor is connected with RJ45 interface.
Embodiment bis-:
In order to improve ability to work and the work quality of pulse duration adjustable infrared network camera instrument infrared lamp, the present embodiment improves further on the basis of embodiment mono-, the width modulation circuit that rushes of the present embodiment comprises peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit, on-off controller, and described on-off controller connects peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit.
Embodiment tri-:
In order to improve infrared lamp and the infrared photography machine matching of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of any one embodiment of embodiment mono-～bis-, the infrared lamp of the present embodiment, comprise aluminium base matrix lamp socket, a plurality of infrared lamp pearl, described aluminium base matrix lamp socket is coaxially arranged on infrared optics video camera, and described infrared lamp pearl matrix spread configuration is on aluminium base matrix lamp socket.
Embodiment tetra-:
In order to improve the infrared lamp adaptive capacity to environment of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of embodiment tri-, and the infrared lamp pearl of the present embodiment is the combination of any one or Arbitrary Term in single-chip infrared lamp pearl, array infrared lamp pearl, dot-matrix type infrared lamp pearl.
Embodiment five:
In order to improve the infrared lamp ability to work of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of embodiment tetra-, and the P/N knot material of the infrared lamp pearl luminescence chip of the present embodiment is GaAs.
Embodiment six:
In order to improve the infrared data ' s acquisition disposal ability of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of any one embodiment of embodiment mono-～five, the infrared optics video camera of the present embodiment comprises infrared optical lens, uncooled detector, front-end processing circuit, described infrared optical lens is coaxially arranged on the dead ahead of uncooled detector, described uncooled detector signal end connects the signal end of front-end processing circuit, and the digital output end of described front-end processing circuit connects the digital input end of processor.
Embodiment seven:
In order to improve pulse duration adjustable infrared network camera instrument, obtain fire alarm video data ability, the present embodiment improves further on the basis of embodiment six, the uncooled detector of the present embodiment, comprise thermoelectric refrigerating unit and be arranged on the micro-metering bolometer array in thermoelectric refrigerating unit, described micro-metering bolometer array comprises a plurality of temperature-sensitive elements, and described temperature-sensitive element is on the focal plane that matrix shape is arranged in uncooled detector.
The concrete data of the utility model assembly are: micro-metering bolometer array adopts the amorphous silicon micro-metering bolometer of the UL03191 of ULIS company, its design parameter is is 9.6mmx7.2mm as sense face area, 1000 * 1000 yuan of array formats, pixel dimension is 25 μ m * 25 μ m, the highest frame frequency 100 MHz, thermoelectric refrigerating unit adopts the ADN-8830 thermoelectric refrigerating unit of AD company.
Those skilled in the art can freely select according to the requirement of practice of construction environment and workpiece the parameter of assembly.
Embodiment eight:
In order to improve the application extension managerial ability of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of any one embodiment of embodiment mono-～seven, the pulse duration adjustable infrared network camera instrument of the present embodiment also comprises peripheral interface units, and described peripheral interface units connects processor.
Embodiment nine:
In order to improve the application extension ability of pulse duration adjustable infrared network camera instrument, the present embodiment improves further on the basis of any one embodiment of embodiment mono-～five, and the peripheral interface units of the present embodiment comprises at least one in video input port, video-out port, warning input port, warning output port, phonetic entry mouth, voice output mouth, RS485 port, RS232 port.
Just can realize this utility model as mentioned above.
Claims (9)
1. a pulse duration adjustable infrared network camera instrument, comprise infrared optics video camera, visible light camera, RJ45 interface, it is characterized in that: also comprise infrared lamp, processor, described processor is integrated Video Codec circuit, pulse width modulation circuit, video analysis algorithm circuit, the digital signal output end of described infrared optics video camera connects the digital signal input end of video analysis algorithm circuit, described video analysis algorithm circuit connects pulse width modulation circuit, the output of described pulse width modulation circuit connects infrared lamp, the VT of described visible light camera connects the video signal input terminal of Video Codec circuit, the signal of communication end of described processor is connected with RJ45 interface.
2. according to a kind of pulse duration adjustable infrared network camera instrument described in claim 1, it is characterized in that: described pulse width modulation circuit comprises peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit, on-off controller, described on-off controller connects peak value base current control circuit, constant on-time control circuit, frequency modulation(FM) control circuit.
3. according to a kind of pulse duration adjustable infrared network camera instrument described in claim 1, it is characterized in that: described infrared lamp, comprise aluminium base matrix lamp socket, a plurality of infrared lamp pearl, described aluminium base matrix lamp socket is coaxially arranged on infrared optics video camera, and described infrared lamp pearl matrix spread configuration is on aluminium base matrix lamp socket.
4. a kind of pulse duration adjustable infrared network camera instrument according to claim 3, is characterized in that: described infrared lamp pearl is the combination of any one or Arbitrary Term in single-chip infrared lamp pearl, array infrared lamp pearl, dot-matrix type infrared lamp pearl.
5. according to a kind of pulse duration adjustable infrared network camera instrument described in claim 4, it is characterized in that: the P/N knot material of described infrared lamp pearl luminescence chip is GaAs.
6. according to a kind of pulse duration adjustable infrared network camera instrument described in claim 1, it is characterized in that: described infrared optics video camera comprises infrared optical lens, uncooled detector, front-end processing circuit, described infrared optical lens is coaxially arranged on the dead ahead of uncooled detector, described uncooled detector signal end connects the signal end of front-end processing circuit, and the digital output end of described front-end processing circuit connects the digital input end of processor.
7. a kind of pulse duration adjustable infrared network camera instrument according to claim 6, it is characterized in that: described uncooled detector, comprise thermoelectric refrigerating unit and be arranged on the micro-metering bolometer array in thermoelectric refrigerating unit, described micro-metering bolometer array comprises a plurality of temperature-sensitive elements, and described temperature-sensitive element is on the focal plane that matrix shape is arranged in uncooled detector.
8. according to a kind of pulse duration adjustable infrared network camera instrument described in claim 1, it is characterized in that: also comprise peripheral interface units, described peripheral interface units connects processor.
9. described a kind of pulse duration adjustable infrared network camera instrument according to Claim 8, is characterized in that: described peripheral interface units comprises at least one in video input port, video-out port, warning input port, warning output port, phonetic entry mouth, voice output mouth, RS485 port, RS232 port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320707865.2U CN203563151U (en) | 2013-11-11 | 2013-11-11 | Infrared network camera with adjustable pulse width |
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| CN201320707865.2U CN203563151U (en) | 2013-11-11 | 2013-11-11 | Infrared network camera with adjustable pulse width |
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| CN203563151U true CN203563151U (en) | 2014-04-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607529A (en) * | 2013-11-11 | 2014-02-26 | 成都市晶林电子技术有限公司 | Automatically adjusted infrared camera |
| US10033910B2 (en) | 2016-04-15 | 2018-07-24 | General Electric Company | Synchronous sampling methods for infrared cameras |
| CN110692238A (en) * | 2017-05-25 | 2020-01-14 | 谷歌有限责任公司 | camera assembly |
| US11156325B2 (en) | 2017-05-25 | 2021-10-26 | Google Llc | Stand assembly for an electronic device providing multiple degrees of freedom and built-in cables |
-
2013
- 2013-11-11 CN CN201320707865.2U patent/CN203563151U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607529A (en) * | 2013-11-11 | 2014-02-26 | 成都市晶林电子技术有限公司 | Automatically adjusted infrared camera |
| US10033910B2 (en) | 2016-04-15 | 2018-07-24 | General Electric Company | Synchronous sampling methods for infrared cameras |
| CN110692238A (en) * | 2017-05-25 | 2020-01-14 | 谷歌有限责任公司 | camera assembly |
| US11156325B2 (en) | 2017-05-25 | 2021-10-26 | Google Llc | Stand assembly for an electronic device providing multiple degrees of freedom and built-in cables |
| US11353158B2 (en) | 2017-05-25 | 2022-06-07 | Google Llc | Compact electronic device with thermal management |
| US11680677B2 (en) | 2017-05-25 | 2023-06-20 | Google Llc | Compact electronic device with thermal management |
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