CN208386765U - Photo infrared ray LED light panel assembly with Internet of Things control ability - Google Patents
Photo infrared ray LED light panel assembly with Internet of Things control ability Download PDFInfo
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- CN208386765U CN208386765U CN201821111417.5U CN201821111417U CN208386765U CN 208386765 U CN208386765 U CN 208386765U CN 201821111417 U CN201821111417 U CN 201821111417U CN 208386765 U CN208386765 U CN 208386765U
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- internet
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- infrared leds
- brightness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of photo infrared ray LED light panel assembly with Internet of Things control ability includes: an optical sensor, a signal controller, an interface of internet of things and an infrared LEDs array board；The optical sensor incudes an ambient brightness and generates an induction analog voltage, the signal controller is connected to the optical sensor, and it is handled for the induction analog voltage, the interface of internet of things is connected to the signal controller, and provides one operating and controlling interface of user to set the starting of the infrared LEDs array board or close switching point and the brightness (power) of the infrared LEDs array board；The infrared LEDs array board is connected to the signal controller, controls its starting by the signal controller or closes switching and brightness.
Description
Technical field
The utility model is the photo infrared ray LED light panel assembly in relation to a kind of with Internet of Things control ability.
Background technique
Night vision type video camera generally has to collocation one infrared ray (infrared, abbreviation IR) LED lamp panel at present, IR LED's
It is mainly used for that light source, assisted tomography can be supplemented in due course at night.The infrared LEDs lamp plate embeds a Photoinduction device, example
Such as, photo resistance (cds), optical diode (photo diode), photistor (photo transistor) or light sensing
IC detects current ambient brightness via the Photoinduction device, exports a photoinduction voltage to determine to start or close IR LED.But
Switching time that is currently active or closing IR LED and LED luminance (power) mostly cannot be adjusted or for fixation only in video camera
Fraction of option is provided in hardware circuit, generates following puzzlement using upper in practice:
1. user can not voluntarily adjust, the subjective cognition for causing too early or delaying starting or close IR LED.
2. because of the factor that optical sensor conformity of production is poor and temperature characterisitic is bad, it is desirable to provide adjustable mechanism, such as
Summer and winter conditions light source and temperature difference influence.
3. manufacturer's shipment detects, place is different from the practical installation environment of video camera, leads to the condition of optical sensor detecting light source
Difference, the switching time for causing starting or closing IR LED are inconsistent.
4.IR LED luminance (power) is because video camera installation environment needs to adjust, such as pickup range is small, IR LED
Power can reduce, and outdoor photo distance is big must to increase power, need on-line tuning mechanism, and the lamp of non-replaceable different capacity
Plate.
5. optical sensor needs to correct using rear aging for a long time, to extend service life of equipment.
6. monitoring camera installing environment is special, such as outdoor electric pole or high-wall, interior or elevator ceiling etc.,
Lamp plate adjustment operation needs to shut down or tears machine open, reprocesses and installs again after carrying out hardware adjustment, spends human and material resources very much, increase simultaneously
Add maintenance risk and causes public security sky window phase maintenance period.
7. unnecessary power consumption will be caused by opening IR LED when being not required to open IR LED opportunity, and reduce the use of equipment
Service life.
Utility model content
The main purpose of the utility model is to provide a kind of photo infrared ray LED lamp panel dress with Internet of Things control ability
It sets, user can be allowed remotely to directly control IR LED switching time and brightness (power), it will thus provide more conveniences and control
Elasticity in system；On the one hand the manpower for saving plant maintenance, on the other hand also can reach the target of energy saving, also can solve prison
Control video camera installing environment spy repairs the problem being not easy.
In order to achieve the above object, it is red to disclose a kind of photography with Internet of Things control ability for the embodiments of the present invention
Outside line LED light panel assembly includes: an optical sensor, a signal controller, an interface of internet of things and an infrared LEDs array board；
The optical sensor incudes an ambient brightness and generates an induction analog voltage, which is connected to the optical sensor, and needle
The induction analog voltage is handled, which is connected to the signal controller, and provides one operating and controlling interface of user
To set the starting of the infrared LEDs array board or close switching point and the brightness (power) of the infrared LEDs array board；It should
Infrared LEDs array board is connected to the signal controller, controls its starting by the signal controller or closes switching and brightness.
In a preferred embodiment, which is photo resistance, photodiode, photistor or light sensing IC
One of which, for the brightness in sense ambient light source, and export the linear sense electric current for being proportional to the environment light source brightness.
In a preferred embodiment, which includes at least one infrared LEDs array.
In a preferred embodiment, which is a camera image signal processor (Camera Image
Signal Processor, Camera ISP) an embedded microprocessor (MCU), when user is somebody's turn to do by an input equipment
The starting or closing threshold value (Threshold) of infrared LEDs array and infrared LEDs array are bright on infrared LEDs array board
When degree setting, which is to be sent to the camera image signal via Internet of Things (Internet of Things, abbreviation IoT)
Microprocessor inside processor, to generate one first group of Pulse Width Modulation (PWM) signal.
In a preferred embodiment, the transmission mode of the interface of internet of things is directly to pass through video camera video transmission line, electricity
Source line, wired and wireless network wherein in one, wherein the wireless network includes at least: radio frequency (RF), Wireless Fidelity (WiFi),
Bluetooth (Bluetooth) and ZigBee protocol (Zigbee).
In a preferred embodiment, which is running gear, personal computer or digital video recorder (DVR).
In a preferred embodiment, which further includes: a load resistance (Load resistor), a simulation
It is low-pass filter (Analog Low Pass Filter), a hysteresis comparator (Hysteresis comparator), one constant
Current source (Constant Current Source) and a current changeover switch (Current Switch)；Wherein, the load
Resistance one end ground connection, another termination optical sensor and is converted into an induction for the linear sense electric current that the optical sensor is exported
Voltage output；The simulation low-pass filter is connected to the interface of internet of things, one first group which is exported
Pulse Width Modulation (PWM) signal, conversion output are proportional to first group of pulse-width modulation signal duty ratio (duty cycle) always
Flow (DC) voltage；The hysteresis comparator is connected to the load resistance and the simulation low-pass filter, which is exported
The DC voltage that induced voltage is exported with the simulation low-pass filter compares, and exports the voltage quasi position of a Digital Logic, wherein
The Digital Logic is high or low；The constant current source is connected to the hysteresis comparator, and the number exported by the hysteresis comparator
Whether the setting output of word logic voltage level；The current changeover switch is connected to the constant current source and the infrared LEDs array
Between plate, and one second group of Pulse Width Modulation (PWM) signal exported from the interface of internet of things is received, to change the infrared ray
The brightness of the conducting electric current of LED array, the infrared LEDs array will be according to the duty of second group of Pulse Width Modulation (PWM) signal
It is determined than (duty cycle).
Detailed description of the invention
Fig. 1 is a kind of photo infrared ray LED lamp panel with Internet of Things control ability provided by the embodiment of the utility model
The structural schematic diagram of device；
Fig. 2 is a kind of photo infrared ray LED lamp panel with Internet of Things control ability provided by the embodiment of the utility model
First group of pwm signal in device converts direct current (DC) voltage oscillogram；
Fig. 3 is a kind of photo infrared ray LED lamp panel with Internet of Things control ability provided by the embodiment of the utility model
Second group of pwm signal and LED luminance relational graph in device；
Fig. 4 is provided by the embodiment of the utility model a kind of according to the switching of picture brightness adjust automatically infrared LEDs array
The flow chart of threshold method.
Description of symbols:
100, optical sensor；200, signal controller；201, load resistance；202, simulation low-pass filter；203, sluggish
Comparator；204, constant current source；205, current changeover switch；300, Internet of Things interface；400, infrared LEDs array board；
S401~S407, step.
Specific embodiment
It is to illustrate the embodiments of the present invention by particular specific embodiment below, people skilled in the art can
Understand other advantages and effect of the utility model easily by content disclosed in this specification.The utility model can also be by
Other different specific examples are implemented or are applied, and every details in the utility model specification may be based on different viewpoints
Various modifications and change are carried out under the spirit for not departing from the utility model with applying.
It should be noted that structure, ratio, size etc. that this specification attached drawing is shown, only to cooperate specification
Disclosure of that is not intended to limit the utility model enforceable limit so that people skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences that technology disclosed in the utility model should all be fallen under the effect of the utility model can be generated and the purpose that can reach
Content obtains in the range of capable of covering.
Fig. 1 is a kind of photo infrared ray LED lamp panel with Internet of Things control ability provided by the embodiment of the utility model
The structural schematic diagram of device.As shown in Figure 1, a kind of photo infrared ray with Internet of Things control ability of the utility model embodiment
LED light panel assembly includes: an optical sensor 100, a signal controller 200, an interface of internet of things 300 and an infrared LEDs battle array
Strake 400；The optical sensor 100 incudes an ambient brightness and generates an induction analog voltage, which is connected to this
Optical sensor 100, and handled for the induction analog voltage, which is connected to the signal controller
200, and one operating and controlling interface of user is provided to set the starting of the infrared LEDs array board 400 or close switching point and this is red
The brightness of outside line LED array plate 400；The infrared LEDs array board 400 is connected to the signal controller 200, is controlled by the signal
Device 200 controls its starting or closes switching and brightness.
In a preferred embodiment, which can be a photo resistance, a photodiode, a photosensitive crystal
Pipe or a light sensing IC；Certainly all electronic building bricks that can be used to the brightness of sense ambient light source all may be used.The optical sensor 100 is being felt
After surveying environment light source brightness, output is proportional to a linear sense electric current of the environment light source brightness.
In a preferred embodiment, which includes at least one infrared LEDs array.This is infrared
Outside line LED array on line LED array plate be turned on or off and its brightness (it is, consumed power) all by
The signal controller 200 is controlled.
In a preferred embodiment, which is a camera image signal processor (Camera Image
Signal Processor, abbreviation Camera ISP) an embedded microprocessor (MCU), when user by an input equipment into
The starting or closing threshold value (Threshold) and infrared LEDs of infrared LEDs array on the row infrared LEDs array board 400
When array brightness settings, which is to be sent to the video camera shadow via Internet of Things (Internet of Things, abbreviation IoT)
As the microprocessor inside signal processor, to generate one first group of Pulse Width Modulation (PWM) signal PWM1.
In a preferred embodiment, the transmission mode of the interface of internet of things 300 be directly pass through video camera video transmission line,
Power supply line, wired and wireless network (RF, infrared ray, WiFi, Bluetooth, Zigbee ...) etc..In other words, existing news
Number transmission mode all can be applied to the utility model.
In a preferred embodiment, which is a running gear, a personal computer, a digital video recorder
(DVR) or other input equipments.It is practical new that any device for having input function and can be connected to Internet of Things all can be applied to this
Type.
In a preferred embodiment, further include as the signal controller 200 of the control core of the utility model: one is negative
Carry resistance (Load resistor) 201, one simulation low-pass filter (Analog Low Pass Filter) 202, one sluggish ratio
Compared with 203, one constant current source of device (Hysteresis comparator) (Constant Current Source) 204 and an electricity
Stream switching switch (Current Switch) 205.
Wherein, one end ground connection of the load resistance 201, another termination optical sensor 100.By 100 institute of optical sensor
The linear sense electric current of output is convertible into induced voltage output through the load resistance 201；The simulation low-pass filter 202
It is connected to the interface of internet of things 300, one first group of Pulse Width Modulation (PWM) signal which is exported
PWM1, conversion output are proportional to a direct current (DC) electricity of first group of pulse-width modulation signal PWM1 duty ratio (duty cycle)
Pressure.
The hysteresis comparator 203 is connected to the load resistance 201 and the simulation low-pass filter 202, by the load resistance
The DC voltage that the induced voltage of 201 outputs is exported with the simulation low-pass filter 202 compares, and exports the electricity of a Digital Logic
Level is pressed, wherein the Digital Logic is high or low；The constant current source 204 is connected to the hysteresis comparator 203, and late by this
Whether the digital logic voltage level that stagnant comparator 203 exports sets output.
The current changeover switch 205 is connected between the constant current source 204 and the infrared LEDs array board 400, and is connect
One second group of Pulse Width Modulation (PWM) the signal PWM2 exported from the interface of internet of things 300 is received, to change the infrared LEDs
The conducting electric current of array, the brightness of the infrared LEDs array is by the duty ratio according to second group of pulse-width modulation signal PWM2
(duty cycle) is determined.
Specifically, which can be a resistance or inductance (RC) circuit；Its simple structure, and can
Reduce cost.
As previously mentioned, a kind of photo infrared ray LED lamp panel dress with Internet of Things control ability of the utility model embodiment
One first group of Pulse Width Modulation (PWM) signal PWM1 that the interface of internet of things 300 set is exported, by the simulation low-pass filter
202 convert direct current (DC) electricity that output is proportional to first group of pulse-width modulation signal PWM1 duty ratio (duty cycle) into one
Pressure.
Fig. 2 show a kind of photo infrared ray LED with Internet of Things control ability provided by the embodiment of the utility model
First group of pwm signal PWM1 in lamp panel device converts direct current (DC) voltage oscillogram.For example, as shown in Fig. 2, when this
When one group of pulse-width modulation signal PWM1 duty ratio is 25%, the DC voltage exported is 1.25V；When first group of pulsewidth tune
When varying signal PWM1 duty ratio is 50%, the DC voltage exported is 2.5V；As first group of pulse-width modulation signal PWM1
When duty ratio is 75%, the DC voltage exported is 3.75V.
It is worth noting that first group of pulse-width modulation signal PWM1 duty ratio of this in above-described embodiment and the DC voltage
Numerical value is only example explanation, and the setting of actual numerical value can change according to application situation.
Similarly, the brightness of the infrared LEDs array board 400 is one second group exported by the interface of internet of things 300
Pulse Width Modulation (PWM) signal PWM2 is regulated and controled, by control the current changeover switch 205 to change the infrared LEDs array
Conducting electric current；In other words, the brightness of the infrared LEDs array is also the duty according to second group of pulse-width modulation signal PWM2
It is determined than (duty cycle).
Fig. 3 show a kind of photo infrared ray LED with Internet of Things control ability provided by the embodiment of the utility model
Second group of pwm signal and LED luminance relational graph in lamp panel device.As shown in figure 3, working as second group of pulse-width modulation signal PWM2
When duty ratio is 0%, then the brightness of the infrared LEDs array is 0；When second group of pulse-width modulation signal PWM2 duty ratio is
When 50%, then the brightness of the infrared LEDs array is 50%；When second group of pulse-width modulation signal PWM2 duty ratio is 80%
When, then the brightness of the infrared LEDs array is 80%；When second group of pulse-width modulation signal PWM2 duty ratio is 100%, then
The brightness of the infrared LEDs array is 100%.
Similarly, second group of pulse-width modulation signal PWM2 duty ratio and the infrared LEDs array are bright in above-described embodiment
The numerical value of degree is only example explanation, and the setting of actual numerical value can change according to application situation.
The explanation of value, the utility model are the spy not sensitive enough to brightness flicker based on human eye by PWM light modulation
Property, dark when bright as LED, if its bright dark frequency is more than 100Hz, seen by person is exactly average brightness.Therefore, PWM
Light modulation means are realized by adjusting bright and dark time scale.Assuming that the maximum current when LED conducting is Imax.PWM is accounted for
When sky is than being D, the average current of LED is the product of D and Imax, as long as therefore changing PWM duty cycle and changing the both ends LED
Average current.To change the brightness of LED.Similarly, other light modulation means can also be applied to the utility model.
The utility model also provides one according to picture brightness adjust automatically infrared LEDs array switching threshold method.Fig. 4 institute
It is shown as a kind of foundation picture brightness adjust automatically infrared LEDs array switching threshold method provided by the embodiment of the utility model
Flow chart.As shown in figure 4, step S401 be obtain MAX_GAIN, Current_Gain, SCALE_FACTOR, HIGH_LIMIT,
The correlation values such as LOW_LIMIT；Wherein, MAX_GAIN is the maximum AGC numerical value that can be set in video camera, is advised for camera hardware
Lattice parameter；Current_Gain is current AGC numerical value, is normally 0dB (gain 1), environment is darker, and this value is higher；SCALE_
FACTOR is a scale factor, is change rate of the user's parameter to control PWM output duty cycle, default value 1；
HIGH_LIMIT is the PWM output duty cycle upper limit, is a customer parameter, default value 80%；LOW_LIMIT is that PWM output accounts for
Sky is a customer parameter, default value 20% than lower limit.It is worth noting that above-mentioned each default value is only example explanation, in fact
The setting of border numerical value can change according to application situation.
Step S402 is to calculate PWM1, calculation are as follows:
Step S403 is to judge whether PWM exceeds its duty ratio upper limit, if exceeding the upper limit, is set to the upper limit value,
As shown in step S404；Otherwise, executing step S405 is to judge whether PWM is lower than its duty ratio lower limit, will if being lower than lower limit
It is set as the lower limit value, as shown in step S406.
Step S407 is the level for exporting PWM1 signal to control the DC voltage of the infrared LEDs array.
However, the effect of the utility model is only illustrated in above-described embodiment, rather than limit the present invention, appoints
What those skilled in the art can modify above-described embodiment under the spirit and scope without prejudice to the utility model
With change.In addition, the quantity of the component in those above-mentioned embodiments is only to be illustrated, it is also non-practical new for limiting this
Type.Therefore the rights protection scope of the utility model, should be as listed by claim below.
Claims (7)
1. a kind of photo infrared ray LED light panel assembly with Internet of Things control ability is, characterized by comprising: a light sensing
Device, a signal controller, an interface of internet of things and an infrared LEDs array board；
The optical sensor incudes an ambient brightness and generates an induction analog voltage；
The signal controller is connected to the optical sensor, and is handled for the induction analog voltage；
The interface of internet of things is connected to the signal controller, and provides one operating and controlling interface of user to set the infrared LEDs array
Switching point and the brightness of the infrared LEDs array board are closed in the starting of plate；
The infrared LEDs array board is connected to the signal controller, controls its starting by the signal controller or closes switching
With brightness.
2. the photo infrared ray LED light panel assembly according to claim 1 with Internet of Things control ability, feature exist
In the optical sensor is the one of which of photo resistance, photodiode, photistor or light sensing IC, for sensing ring
The brightness of border light source, and export the linear sense electric current for being proportional to the environment light source brightness.
3. the photo infrared ray LED light panel assembly according to claim 1 with Internet of Things control ability, feature exist
In the infrared LEDs array board includes at least one infrared LEDs array.
4. the photo infrared ray LED light panel assembly according to claim 1 with Internet of Things control ability, feature exist
In the interface of internet of things is the microprocessor that a camera image signal processor embeds, when user passes through an input equipment
It carries out the starting of infrared LEDs array on the infrared LEDs array board or closes threshold value and infrared LEDs array brightness settings
When, which is the microprocessor being sent to inside the camera image signal processor via Internet of Things, to generate one first
Group pulse-width modulation signal.
5. the photo infrared ray LED light panel assembly according to claim 4 with Internet of Things control ability, feature exist
In the transmission mode of, the interface of internet of things be directly pass through video camera video transmission line, power supply line, it is wired and wireless network its
Middle one kind, wherein the wireless network includes at least: radio frequency, Wireless Fidelity WiFi, bluetooth Bluetooth and ZigBee protocol
Zigbee。
6. the photo infrared ray LED light panel assembly according to claim 4 with Internet of Things control ability, feature exist
In the input equipment is running gear, personal computer or digital video recorder DVR.
7. the photo infrared ray LED light panel assembly according to claim 4 with Internet of Things control ability, feature exist
In the signal controller further includes: a load resistance, a simulation low-pass filter, a hysteresis comparator, a constant current source,
An and current changeover switch；
Wherein, which is grounded, another linear sense for terminating the optical sensor and being exported the optical sensor
Electric current is converted into induced voltage output；
The simulation low-pass filter is connected to the interface of internet of things, one first group of pulsewidth tune which is exported
Varying signal, conversion output are proportional to a DC voltage of first group of pulse-width modulation signal duty ratio；
The hysteresis comparator is connected to the load resistance and the simulation low-pass filter, the induced voltage which is exported
It is compared with the DC voltage of simulation low-pass filter output, and exports the voltage quasi position of a Digital Logic, wherein the number is patrolled
It is high or low for collecting；
The constant current source is connected to the hysteresis comparator, and is set by the digital logic voltage level that the hysteresis comparator exports
Whether output；
The current changeover switch is connected between the constant current source and the infrared LEDs array board, and is received and come from the Internet of Things
One second group of pulse-width modulation signal that network interface is exported, to change the conducting electric current of the infrared LEDs array, the infrared ray
The brightness of LED array will be determined according to the duty ratio of second group of pulse-width modulation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111417.5U CN208386765U (en) | 2018-07-13 | 2018-07-13 | Photo infrared ray LED light panel assembly with Internet of Things control ability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821111417.5U CN208386765U (en) | 2018-07-13 | 2018-07-13 | Photo infrared ray LED light panel assembly with Internet of Things control ability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208386765U true CN208386765U (en) | 2019-01-15 |
Family
ID=64964170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821111417.5U Expired - Fee Related CN208386765U (en) | 2018-07-13 | 2018-07-13 | Photo infrared ray LED light panel assembly with Internet of Things control ability |
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| CN (1) | CN208386765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784656A (en) * | 2018-07-13 | 2020-02-11 | 宏海微电子股份有限公司 | Photographic infrared LED lamp panel device with internet of things control capability |
| CN112468687A (en) * | 2019-09-09 | 2021-03-09 | 雅光国际有限公司 | Camera device using OSD to adjust infrared brightness and start point |
-
2018
- 2018-07-13 CN CN201821111417.5U patent/CN208386765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110784656A (en) * | 2018-07-13 | 2020-02-11 | 宏海微电子股份有限公司 | Photographic infrared LED lamp panel device with internet of things control capability |
| CN112468687A (en) * | 2019-09-09 | 2021-03-09 | 雅光国际有限公司 | Camera device using OSD to adjust infrared brightness and start point |
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