CN112903100A - Brightness detector - Google Patents
Brightness detector Download PDFInfo
- Publication number
- CN112903100A CN112903100A CN202110416654.2A CN202110416654A CN112903100A CN 112903100 A CN112903100 A CN 112903100A CN 202110416654 A CN202110416654 A CN 202110416654A CN 112903100 A CN112903100 A CN 112903100A
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- CN
- China
- Prior art keywords
- box body
- body assembly
- well accuse
- mainboard
- brightness detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000001514 detection method Methods 0.000 claims abstract description 16
- 239000011521 glass Substances 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a brightness detector, which specifically comprises a box body assembly, a light source assembly and a light source assembly, wherein the box body assembly is provided with a cavity box body and a box body upper cover arranged above the box body assembly; the system comprises a box body assembly, an acquisition module, a detection module and a control module, wherein the acquisition module is provided with a detection isolation glass sheet and a camera mounting rack arranged in the box body assembly; the invention relates to the technical field of brightness, in particular to a central control mainboard which is provided with a central control PCB, a central control processor and positioning frames arranged on two sides of the central control mainboard. The brightness detector has the advantages that the effects of ensuring driving safety and saving electricity are achieved, the heater is arranged in the instrument, the window is effectively prevented from dewing, the device body can be cooled in an emergency, and elements of the device are effectively protected.
Description
Technical Field
The invention belongs to the technical field of tunnel detection, and particularly relates to a brightness detector.
Background
The traffic safety standard of international highways requires continuous measurement of the illuminance level at the tunnel entrance and automatic adjustment of lighting facilities according to the change of external ambient light. This suggestion is important to eliminate the "black hole" effect that drivers feel catastrophic when entering poorly lit tunnels. The brightness detector is mainly installed at a position about 100 meters outside the tunnel opening, and is an on-line monitoring instrument for professionally monitoring the ambient brightness outside the tunnel. The automatic control is adopted to illuminate the A-level tunnel and the B-level tunnel of the highway and the first-level highway tunnel so as to eliminate the 'black hole' effect and ensure the driving safety. The automatic control method adopts a method of detecting brightness values inside and outside the detection hole, and controls the illumination working condition in the tunnel after calculation processing. The current brightness detector performs photoelectric conversion on collected light rays through a lens during brightness detection, but the lens cannot perform accurate detection due to large temperature difference, abnormal heating caused by circuit faults or environmental reasons cannot be processed, and elements are easily burnt.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a brightness detector which solves the problems that lens fogging cannot be accurately detected due to large temperature difference, and abnormal heating cannot be handled due to circuit faults or environmental reasons.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a brightness detector, comprising, in particular,
the box body assembly is provided with a cavity box body and a box body upper cover arranged above the box body assembly;
the system comprises a box body assembly, an acquisition module, a detection module and a control module, wherein the acquisition module is provided with a detection isolation glass sheet and a camera mounting rack arranged in the box body assembly;
well accuse mainboard should have well accuse PCB board and well accuse treater to and set up the locating rack that is well accuse mainboard both sides, easy to assemble and location, the equipment is fast, and it is convenient to adjust, box body assembly inside is located and detects the camera below and is provided with the heating piece, and the heating function prevents to gather the glass piece on the module and hazes, avoids appearing shooing unclear, the inside one side of keeping away from the collection module of box body assembly is provided with radiator fan, the inside avris of box body assembly is provided with urgent heat sink, urgent heat sink is located well accuse mainboard top, just urgent heat sink and well accuse mainboard electric connection cool down internal component fast when device short circuit or other circumstances lead to rising temperature rapidly through judging ambient temperature, well accuse mainboard and detection camera electric connection.
Preferably, the two sides of the bottom of the inner side of the box body assembly are provided with positioning sliding grooves, and the central control mainboard is installed on the positioning sliding grooves through a positioning frame.
Preferably, the bottom of the box body assembly is provided with an insulating bottom groove frame, and the positioning sliding groove is arranged above the insulating bottom groove frame.
Preferably, the emergency cooling device comprises a component box body, wherein one side, close to the inner wall of the box body assembly, of the component box body is provided with a heat radiation fin, airflow holes are formed in two sides of the component box body, one side, far away from the inner wall of the box body assembly, of the component box body is provided with an airflow groove, a drying layer is arranged between the airflow groove and the heat radiation fin, and a semiconductor refrigerator is arranged between the heat radiation fins.
Preferably, all be provided with temperature sensor on the inside and well accuse mainboard of emergency cooling device, the inside most advanced water conservancy diversion aerofoil that is provided with of drying layer, drying layer mainly used semiconductor cooler absorbs the comdenstion water that extremely fast cooling appears when promptly dispelling the heat, prevents that the comdenstion water from dripping on the mainboard, and the fan blows out the cold air current with inside, forms the convection current wind inside the casing, realizes the cooling of dispelling the heat fast.
Preferably, one side of the bottom of the box body assembly close to the cooling fan is provided with two external waterproof joints, and the two external waterproof joints are located below the central control main board and used for connecting an external circuit.
(III) advantageous effects
The invention provides a brightness detector. The method has the following beneficial effects:
the brightness detector adopts the CCD camera as the brightness detector, changes the imaging exposure time, obviously increases the measurement range of the brightness, outputs visual images, and easily controls the measurement area at the tunnel portal.
And (II) the brightness detector is provided with a heater inside the instrument, so that the condensation of a window is effectively prevented.
And (III) the brightness detector and the instrument generally only need little maintenance work, and can also realize emergency heat dissipation on the device body and effectively protect the elements of the device.
The brightness detector can convert the measured value into a digital signal according to the change of the natural brightness of the environment outside the tunnel, output the digital signal to the tunnel lighting control system, and intelligently control the lighting equipment, so that the whole lighting system is richer in efficiency, and the effects of ensuring driving safety and saving electricity are achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of the interior of the case assembly according to the present invention;
FIG. 3 is a schematic structural view of a cross section of a cartridge body according to the present invention;
FIG. 4 is a schematic structural view of the interior of the case according to the present invention;
FIG. 5 is a schematic structural diagram of an emergency cooling device according to the present invention;
FIG. 6 is a schematic diagram of the distribution of connectors of the control motherboard according to the present invention.
In the figure: the device comprises a box body assembly 1, a box body upper cover 2, a collection module 3, a central control mainboard 4, a heat radiation fan 5, a detection camera 6, an emergency cooling device 7, a component box body 71, heat radiation fins 72, a drying layer 73, a semiconductor refrigerator 74, an airflow groove 75, an airflow hole 76, a positioning chute 8, an external waterproof joint 9, a heating block 10 and an insulating bottom groove frame 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a brightness detector, comprising, in particular,
the box body assembly 1 is provided with a cavity box body and a box body upper cover 2 arranged above the box body assembly 1;
the collection module 3, this collection module 3 has the detection isolation glass piece, and set up the camera mounting bracket in box body assembly 1 inside, install above the camera mounting bracket and detect camera 6, adopt the integrative car of photoelectricity of computer technology and digital image processing technology to test the camera, adopt CCD formation of image camera, CCD formation of image type brightness measurement system is the integrative test equipment of photoelectricity based on computer technology and digital image processing technology, the light that the measured object sent passes through the formation of image optical system, shine on CCD photosensitive element face, turn into the signal of telecommunication through photoelectric conversion system, then obtain digital image information through analog-to-digital conversion. Extracting gray scale of the image by using a digital image processing technology, then obtaining a corresponding brightness value of the surface of the measured object according to the gray scale value of each pixel in the image and the exposure time by using the calibrated parameters, and finally drawing the brightness distribution of the surface of the measured object;
well accuse mainboard 4, this have well accuse PCB board and well accuse treater, and the setting is in the locating rack of well accuse mainboard 4 both sides, easy to assemble and location, the equipment is fast, it is convenient to adjust, 1 inside being located of box body assembly is provided with heating block 10 below detecting camera 6, the heating function prevents to gather the glass piece on the module 3 and hazes, it is unclear to avoid shooing to appear, 1 inside one side of keeping away from of box body assembly is provided with radiator fan 5, 1 inside avris of box body assembly is provided with urgent heat sink 7, urgent heat sink 7 is located well accuse mainboard 4 top, and urgent heat sink 7 and well accuse mainboard 4 electric connection, through judging ambient temperature, cool down interior component fast when device short circuit or other circumstances lead to rapidly rising temperature, well accuse mainboard 4 and detection camera 6 electric connection.
As shown in fig. 6, each connector interface of the circuit board on the central control motherboard 4 is defined as follows:
j1 on the mainboard is a serial port screen interface; j2 is a cable port; j3 is an RS485 communication interface; j4 is a mainboard program programming interface; j6 is a 220V ac input; j7 is the brightness color temperature signal output end; j8 is a color temperature sensor interface; j9 is +24V power supply fan power supply interface.
1N, PE and LJ6 are respectively a 220V power supply zero line input, a 220V power supply ground wire and a 220V power supply live wire input.
2R-, R + J7 and a brightness 4-20mA signal current output end.
3Tc-, Tc + J7 color temperature 4-20mA signal current output terminal.
4+24V GNDJ9, a fan power supply end, a red line is connected with +24V, and a black line is connected with GND.
5GND, B, ARS485(J3): RS485 communication port. A is connected with A + (D +) of the RS485 interface, B is connected with B- (D-) pin of the RS485 interface, and GND is connected with GND pin of the RS485 interface.
The box body assembly 1 is provided with location spout 8 in inboard bottom both sides, and well accuse mainboard 4 is installed on location spout 8 through the locating rack.
The bottom of the box body assembly 1 is provided with an insulating bottom groove frame 11, and the positioning sliding groove 8 is arranged above the insulating bottom groove frame 10.
The emergency cooling device 7 comprises a component box body 71, wherein heat dissipation fins 72 are arranged on one side, close to the inner wall of the box body assembly 1, in the component box body 71, airflow holes 76 are formed in two sides of the component box body 71, an airflow groove 75 is formed in one side, far away from the inner wall of the box body assembly 1, of the component box body 71, a drying layer 73 is arranged between the airflow groove 75 and the heat dissipation fins 72, and a semiconductor refrigerator 74 is arranged between the heat dissipation fins 72.
All be provided with temperature sensor on the inside and well accuse mainboard 4 of emergency cooling device 7, the inside most advanced water conservancy diversion aerofoil that is provided with of dry layer 73, dry layer 73 mainly used semiconductor cooler 74 absorbs the comdenstion water that extremely fast cooling appears when promptly dispelling the heat, prevents that the comdenstion water from dripping on the mainboard, and the fan blows out the air and blows off the cold air current of inside, forms the convection current wind inside the casing, realizes the cooling of dispelling the heat fast.
The external waterproof joints 9 are arranged on one side, close to the cooling fan 5, of the bottom of the box body assembly 1, the external waterproof joints 9 are arranged in two, and the external waterproof joints 9 are located below the central control main board 4 and used for being connected with an external circuit.
When the brightness detector is used, the brightness detector is an integrated detecting instrument without moving any part. The mounting position requires the driving direction, and is mainly mounted at about 100 meters outside the tunnel portal, the detection direction of the detector should point to the road surface outside the portal, and the 220V power supply supplies power: the power supply is realized by using 220V alternating current, 1 RVVP 3X 0.5 square meter shielding cable is directly connected to the inside of the box body, a connector at a 220V power supply position is connected with a signal transmission line, and the signal transmission line is connected with the following wires: the signal transmission uses 1 RVVP 2 per 0.5 square meter 2 shielding cable, passes through the water joint and connects to mainboard R-, R + (J7) position.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A brightness detector, comprising, in particular,
the box body assembly (1), the box body assembly (1) is provided with a cavity box body and a box body upper cover (2) arranged above the box body assembly (1);
the collection module (3) is provided with a detection isolation glass sheet and a camera mounting rack arranged in the box body assembly (1), and a detection camera (6) is arranged above the camera mounting rack;
well accuse mainboard (4), should have well accuse PCB board and well accuse processor to and the setting is being the locating rack of well accuse mainboard (4) both sides, its characterized in that: the utility model discloses a set up box body assembly (1) is inside to be located and to detect camera (6) below and be provided with heating piece (10), the inside one side of keeping away from collection module (3) of box body assembly (1) is provided with radiator fan (5), the inside avris of box body assembly (1) is provided with urgent heat sink (7), urgent heat sink (7) are located well accuse mainboard (4) top, just urgent heat sink (7) and well accuse mainboard (4) electric connection, well accuse mainboard (4) and detection camera (6) electric connection.
2. A brightness detector as claimed in claim 1, characterized in that: the box body assembly (1) is characterized in that positioning sliding grooves (8) are formed in two sides of the bottom of the inner side of the box body assembly (1), and the central control main board (4) is installed on the positioning sliding grooves (8) through a positioning frame.
3. A brightness detector as claimed in claim 2, characterized in that: the bottom of the box body assembly (1) is provided with an insulating bottom groove frame (11), and the positioning sliding groove (8) is arranged above the insulating bottom groove frame (10).
4. A brightness detector as claimed in claim 1, characterized in that: the emergency cooling device (7) comprises a component box body (71), wherein heat dissipation fins (72) are arranged on one side, close to the inner wall of the box body assembly (1), in the component box body (71), airflow holes (76) are formed in the two sides of the component box body (71), an airflow groove (75) is formed in one side, far away from the inner wall of the box body assembly (1), of the component box body (71), a drying layer (73) is arranged between the airflow groove (75) and the heat dissipation fins (72), and a semiconductor refrigerator (74) is arranged between the heat dissipation fins (72).
5. A luminance detector as claimed in claim 4, wherein: all be provided with temperature sensor inside emergency cooling device (7) and on well accuse mainboard (4), drying layer (73) inside is provided with most advanced water conservancy diversion aerofoil.
6. A brightness detector as claimed in claim 1, characterized in that: the box body assembly (1) bottom is close to one side of cooling fan (5) and has been seted up outside water joint (9), and outside water joint (9) are provided with two, just outside water joint (9) are located well accuse mainboard (4) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416654.2A CN112903100A (en) | 2021-04-19 | 2021-04-19 | Brightness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110416654.2A CN112903100A (en) | 2021-04-19 | 2021-04-19 | Brightness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112903100A true CN112903100A (en) | 2021-06-04 |
Family
ID=76110635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110416654.2A Pending CN112903100A (en) | 2021-04-19 | 2021-04-19 | Brightness detector |
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| Country | Link |
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| CN (1) | CN112903100A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1767910A2 (en) * | 2005-09-27 | 2007-03-28 | Yokogawa Electric Corporation | Light amount measuring apparatus and light amount measuring method |
| CN201724184U (en) * | 2010-07-06 | 2011-01-26 | 广州市番禺区珠江灯光音响实业有限公司 | Lamp heat dissipating device |
| CN202195881U (en) * | 2011-08-26 | 2012-04-18 | 长春希迈气象科技股份有限公司 | Novel anti-pollution digital luminance meter |
| CN203432681U (en) * | 2013-08-27 | 2014-02-12 | 奚易堃 | Brightness detector |
| CN206311207U (en) * | 2016-12-13 | 2017-07-07 | 天津朗思世纪科技发展有限公司 | A kind of tunnel illumination monitor |
-
2021
- 2021-04-19 CN CN202110416654.2A patent/CN112903100A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1767910A2 (en) * | 2005-09-27 | 2007-03-28 | Yokogawa Electric Corporation | Light amount measuring apparatus and light amount measuring method |
| CN201724184U (en) * | 2010-07-06 | 2011-01-26 | 广州市番禺区珠江灯光音响实业有限公司 | Lamp heat dissipating device |
| CN202195881U (en) * | 2011-08-26 | 2012-04-18 | 长春希迈气象科技股份有限公司 | Novel anti-pollution digital luminance meter |
| CN203432681U (en) * | 2013-08-27 | 2014-02-12 | 奚易堃 | Brightness detector |
| CN206311207U (en) * | 2016-12-13 | 2017-07-07 | 天津朗思世纪科技发展有限公司 | A kind of tunnel illumination monitor |
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Application publication date: 20210604 |
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