A kind of light fixture and its operating method that control is identified by photoelectric image
Technical field
The present invention relates to a kind of light fixture, particularly a kind of light fixture and its operating method that control is identified by photoelectric image.
Background technology
Existing infrared induction, when detecting human body or animal, infrared ray is sent, is handled by Fresnel Lenses, can be known
Human or animal is not moved, it can however not the human or animal that identification is static.Because the body temperature of human body is constant, in summer environment
Temperature is high, and when human body temperature reduces with ambient temperature differences, the detectivity of infrared induction declines.Particularly work as environment temperature
During more than 32 DEG C, the induction sensitivity of infrared ray drastically declines, and distance of reaction shortens, and therefore, infrared induction skill is used in summer
The sensing lamp and inductive switch of art often occur can not normal induction.
Existing high-frequency microwave sensing, also known as radar sense, can be with paratonic movement object, but high-frequency microwave signal can be worn
Saturating wall, is also easy to produce false triggering.
Existing voice signal sensing, has more than activation threshold value voice signal, switch conduction, is closed after delay.
It is existing generally to have continuous trigger and interval triggering two ways using delay technique control lamp switch.Work as personnel
When the amplitude hour or nothing do not moved in latency period, moved exceed the voice signal of threshold value, after delay switch delay terminates
Light fixture is closed, when personnel or object move in latency period, delay switch will be continued by delay duration again in triggering moment
Delay;This is continuous trigger mode.Close after delay, restart after triggering, this is interval triggering mode.Both are touched
Originating party formula has following technical disadvantages:1) mobile human body or moving object can only be identified, the people and object that None- identified is forbidden;2)
The distance of detection is short, the narrow range of detection.
The A of Chinese patent literature CN 101957235 disclosed a kind of intermittent illuminance inspection on 01 26th, 2011
Device is surveyed, including base, the bottom space of the base are provided with the photoelectric cell closing device for placing photoelectric cell, institute
State and be also equipped with driving the photoelectric cell closing device to rotate and driving photoelectric cell closing device to stretch out base end face on base
Driver.The illuminance detecting device can be such that photoelectric cell its light receiving surface in detection is blocked without any, during non-detection, by
Optical surface is blocked completely, effectively improves the accuracy of testing result, while it has certain dust-proof, rainproof function, keeps away
It is oversize by the illumination duration to exempt from photoelectric cell, it is ensured that the service life of photoelectric cell.
The content of the invention
The purpose of the present invention aim to provide it is a kind of it is simple and reasonable, operation flexibly, have a wide range of application by photoelectric image
The light fixture and its operating method of control are identified, to overcome weak point of the prior art.
A kind of by the design of this purpose identifies the light fixture controlled, including light fixture and illuminance detecting device by photoelectric image,
Its architectural feature is the middle control machine for also including being preset with IMAQ identifying system chip, illuminance detecting device and middle control machine phase
Connect, the camera for gathering image connects with middle control machine, and infrared light generator connects with middle control machine, middle control machine and light fixture phase
Connect.
Further, the middle control machine is also preset with stationary object recognizer chip and/or interference signal eliminates program core
Piece.
Further, the light fixture of control, in addition to the solar energy power store device to connect with middle control machine are identified by photoelectric image.
A kind of operating method for the light fixture that control is identified by photoelectric image, it is characterized in that comprising the following steps:
Step 1, illuminance detection is carried out to the environment in search coverage by illuminance detecting device, obtains illuminance
Detected value;
Step 2, judge whether illuminance detected value is less than threshold values by middle control machine:When illuminance detected value is higher than threshold values
When, step 14 is transferred to, when illuminance detected value is less than threshold values, is transferred to step 3;
Step 3, machine is controlled in wake-up, start IMAQ identifying system and infrared light generator;
Step 4, the image information in search coverage is gathered by camera;
Step 5, picture signal processing is carried out by IMAQ identifying system;
Step 6, by IMAQ identifying system judge in search coverage whether someone or object:When in search coverage
Nobody or during object, is transferred to step 5, as someone in search coverage or object, is transferred to step 7;
Step 7, the control signal of light fixture is opened by middle control machine;
Step 8, judge whether people in search coverage or object leave by IMAQ identifying system:When exiting,
Step 15 is transferred to, when not leaving, is transferred to step 9;
Step 9, judge whether illuminance detected value is higher than threshold values by middle control machine:When judged result is "Yes", it is transferred to
Step 10, when judged result is "No", it is transferred to step 5;
Step 10, by middle control machine start-up study program, enter line delay;
Step 11, judge whether illuminance detected value is higher than threshold values by middle control machine:When judged result is "Yes", turn
Enter step 12, when judged result is "No", be transferred to step 5;
Step 12, pass through middle control machine closing control signal;
Step 13, middle control machine is in standby resting state, and closes infrared light generator;
Step 14, middle control machine continue dormancy, close IMAQ identifying system;
Step 15, closing control signal after being delayed by middle control machine.
Further, the span of the threshold values is 2~15LUX or set as requested.
Further, the span of the delay is 1~5 minute or set as requested.
Illuminance detecting device in the present invention connects with middle control machine, for the camera for gathering image and middle control machine phase
Connect, infrared light generator connects with middle control machine, and middle control machine connects with light fixture, and the image obtained by camera in search coverage is believed
Number, IMAQ identifying system chip and the processing of stationary object recognizer chip and analysis image letter in control machine
Number, if someone or object in search coverage, controlled by middle control machine and open light fixture, after people or object leave, passed through
Middle control machine controls and closes light fixture.
The present invention obtains the picture signal in search coverage using camera, on daytime or ambient light intensity higher than predetermined
During threshold value, environment photoimaging is utilized;When at night or ambient light intensity is less than predetermined threshold value, infrared light generator is opened, is adopted
Employment or the infrared imaging of object reflection.Middle control machine is handled the photoelectric image of collection in real time;Central control machine identifies
When people or object are in search coverage, while whether the illuminance of monitoring of environmental is less than the threshold value of setting, when ambient light illumination height
When the threshold value of setting, middle control machine not output control signal, when threshold value of the ambient light illumination less than setting, middle control machine output control
Signal processed;Control signal is used to control lamp switch or controls the variable-frequency power sources of light fixture itself, changes the output of the variable-frequency power sources
Power.
Middle control machine in the present invention is handled picture signal in real time, when finder or object leave search coverage, warp
After spending delay a period of time, middle control machine closing control signal.
The present invention has advantages below:1) can identify in search coverage whether someone or object;2) can according to people or
Turned on light when object is in search coverage, and people or object leave after turn off the light, realize that people goes to turn off the light turning on light with people;3) detect
Angle is wide, and distance is remote;4) intelligent image identification technology, the people in detecting area or object can be identified, takes different open and close lamps
Pattern;5) strong antijamming capability, false triggering rate is low, is not influenceed by environment temperature;6) application is more extensive.
In summary, the present invention has the characteristics of simple and reasonable, operation is flexible, has a wide range of application.
Brief description of the drawings
Fig. 1 is the control block diagram of one embodiment of the invention.
Fig. 2 is the operational flowchart of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
Referring to Fig. 1-Fig. 2, this is identified the light fixture of control, including light fixture and illuminance detecting device by photoelectric image, and it is special
Sign is the middle control machine for also including being preset with IMAQ identifying system chip, and illuminance detecting device connects with middle control machine, is used for
The camera of collection image connects with middle control machine, and infrared light generator connects with middle control machine, and middle control machine connects with light fixture.
Wherein, it is respectively double-direction control between camera, light fixture, infrared light generator and middle control machine, machine is controlled in both receiving
Control and provide corresponding information to middle control machine, moreover it is possible to the corresponding letter after the adjustment information of machine is controlled in reception and will be adjusted
Breath feed back to middle control machine, such as, camera receive in control machine angle adjustment information or Focussing information and be adjusted angle
And the corresponding information after adjustment is fed back into middle control machine.
In the present embodiment, the middle control machine is also preset with stationary object recognizer chip and/or interference signal eliminates
Program chip.
The effect that interference signal eliminates program chip is control accuracy and the degree of accuracy for further improving this product.
In the present embodiment, IMAQ identifying system chip, stationary object recognizer chip and interference can be believed
Number eliminate program chip be made as standard plug-in unit respectively, then as needed and select needed for chip and be inserted into middle control
In the slot of machine, to popularize the application of this product.Certainly, will be by IMAQ identifying system, stationary object recognizer
It is mounted in advance with interference signal elimination program also possible in middle control machine.
By the light fixture of photoelectric image identification control, in addition to the solar energy power store device to connect with middle control machine.
By the operating method of the light fixture of photoelectric image identification control, it is characterized in that comprising the following steps:
Step 1, illuminance detection is carried out to the environment in search coverage by illuminance detecting device, obtains illuminance
Detected value;
Step 2, judge whether illuminance detected value is less than threshold values by middle control machine:When illuminance detected value is higher than threshold values
When, step 14 is transferred to, when illuminance detected value is less than threshold values, is transferred to step 3;
Step 3, machine is controlled in wake-up, start IMAQ identifying system and infrared light generator;
Step 4, the image information in search coverage is gathered by camera;
Step 5, picture signal processing is carried out by IMAQ identifying system;
Step 6, by IMAQ identifying system judge in search coverage whether someone or object:When in search coverage
Nobody or during object, is transferred to step 5, as someone in search coverage or object, is transferred to step 7;
Step 7, the control signal of light fixture is opened by middle control machine;
Step 8, judge whether people in search coverage or object leave by IMAQ identifying system:When exiting,
Step 15 is transferred to, when not leaving, is transferred to step 9;
Step 9, judge whether illuminance detected value is higher than threshold values by middle control machine:When judged result is "Yes", it is transferred to
Step 10, when judged result is "No", it is transferred to step 5;
Step 10, by middle control machine start-up study program, enter line delay;
Step 11, judge whether illuminance detected value is higher than threshold values by middle control machine:When judged result is "Yes", turn
Enter step 12, when judged result is "No", be transferred to step 5;
Step 12, pass through middle control machine closing control signal;
Step 13, middle control machine is in standby resting state, and closes infrared light generator;
Step 14, middle control machine continue dormancy, close IMAQ identifying system;
Step 15, closing control signal after being delayed by middle control machine.
The span of the threshold values is 2~15LUX or setting as requested.
The delay time of present electronic switch is usually 35 seconds~90 seconds, it is contemplated that powerful street lamp, due to there is automobile
The interference of lamp, so in the present embodiment, the span of the delay sets for 1~5 minute or as requested.
The span of the threshold values and the span of delay may be used also in addition to the value range of the above-mentioned determination provided
To be adjusted by user according to specific environment, farthest to meet the needs of local search coverage.
In the present embodiment, the setting of stationary object recognizer chip, the setting for being in order at situations below and carrying out:Outside
The people or object come enters search coverage, if people have left, nobody is rested in search coverage, is delayed 1~10 minute
Light fixture or setting as requested are closed afterwards;Or object does not leave if people have left, nobody rests on detecting area
In domain, delay closes light fixture after 1~10 minute.
Above-mentioned delay, all it is to be carried out by middle control machine, does not use delay switch in addition.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.