CN113329187A - Automatic control method and device for light supplement lamp of ETC portal - Google Patents

Automatic control method and device for light supplement lamp of ETC portal Download PDF

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Publication number
CN113329187A
CN113329187A CN202110454344.XA CN202110454344A CN113329187A CN 113329187 A CN113329187 A CN 113329187A CN 202110454344 A CN202110454344 A CN 202110454344A CN 113329187 A CN113329187 A CN 113329187A
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China
Prior art keywords
light
etc portal
light intensity
supplement lamp
lamp
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CN202110454344.XA
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Chinese (zh)
Inventor
刘刚
胡天宇
杨勇
刘星宇
张明月
许建明
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Beijing Yunxingyu Traffic Science & Technology Co ltd
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Beijing Yunxingyu Traffic Science & Technology Co ltd
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Priority to CN202110454344.XA priority Critical patent/CN113329187A/en
Priority to CN202211614771.0A priority patent/CN116132810A/en
Publication of CN113329187A publication Critical patent/CN113329187A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/03—Combinations of cameras with lighting apparatus; Flash units
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
    • G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
    • G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
    • G07B15/063—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems using wireless information transmission between the vehicle and a fixed station
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Finance (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention discloses an automatic control method and device for an ETC portal light supplement lamp, which comprises the following steps: acquiring the light intensity of the current environment of the ETC portal; according to the light intensity of the environment, a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp is turned on or turned off; when the light filling lamp is opened, the duty ratio of the ETC portal light filling lamp is adjusted in real time according to the change of the light intensity of the environment so as to guarantee the definition of an image of the ETC portal camera, complete the automatic control of the light filling lamp, and solve the problems of driving potential safety hazards caused by simultaneous opening of the main and standby light filling lamps and energy consumption caused by simultaneous opening and incapability of adjusting the brightness of the main and standby light filling lamps.

Description

Automatic control method and device for light supplement lamp of ETC portal
Technical Field
The application relates to the field of intelligent control, in particular to an automatic control method for an ETC portal light supplement lamp, and simultaneously relates to an automatic control device for the ETC portal light supplement lamp.
Background
At present, the ETC portal adopts a main one in every lane and two candid photograph camera simultaneous working's redundancy scheme, and a light filling lamp is connected to every camera, and opening of light filling lamp is by artificial control, and two light filling lamps are often bright at night under the normal condition, and the light filling lamp is too bright driving safety hidden danger and the power consumption that brings easily.
Disclosure of Invention
In order to solve the above problem, the present application provides an ETC portal light filling lamp automatic control method, including:
acquiring the light intensity of the current environment of the ETC portal;
according to the light intensity of the environment, a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp is turned on or turned off;
when the light filling lamp is opened, according to the change of the light intensity of environment, adjust ETC portal light filling lamp duty cycle in real time to guarantee the definition of ETC portal camera image, accomplish the automatic control of light filling lamp.
Preferably, acquire the light intensity of ETC portal current environment, include:
acquiring the brightness of an ETC portal camera image through a residual error network Resnet;
and obtaining the light intensity of the current environment of the ETC portal according to the brightness of the image.
Preferably, according to the light intensity of environment, open or close main light filling lamp or the spare light filling lamp in the ETC portal light filling lamp, include:
if the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal frame is started, and if the main light supplement lamp fails, a spare light supplement lamp is started;
and if the light intensity of the current environment is higher than the preset threshold value, closing the main light supplement lamp or the auxiliary light supplement lamp which is started by the ETC portal.
Preferably, when the light filling lamp is opened, according to the light intensity's of environment change, adjust ETC portal light filling lamp duty cycle in real time, include:
acquiring the light intensity change of the current environment according to the brightness of the ETC portal camera image;
if the light intensity of the current environment is weakened from strong, increasing the duty ratio of the ETC portal fill light according to the change value of the light intensity, and compensating the light intensity of the current environment;
if the light intensity of the current environment changes from weak to strong, reducing the duty ratio of a light supplement lamp of the ETC portal according to the change value of the light intensity;
and if the light intensity of the current environment is higher than the preset threshold value, closing the started light supplement lamp of the ETC portal.
Preferably, the method further comprises the following steps:
monitoring the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame;
when the main camera fails, starting the standby camera;
and when the main light supplement lamp fails, starting the auxiliary light supplement lamp.
The application also provides an automatic control device of the ETC portal light supplementing lamp, which comprises a light source, a light source and a controller, wherein the light source is connected with the light source;
the light intensity acquisition unit is used for acquiring the light intensity of the current environment of the ETC portal;
the switch control unit is used for turning on or off a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp according to the light intensity of the environment;
the adjusting unit is used for working as when the light filling lamp is opened, according to the change of the light intensity of environment, adjust ETC portal light filling lamp duty cycle in real time to guarantee the definition of ETC portal camera image, accomplish the automatic control of light filling lamp.
Preferably, the light intensity acquiring unit includes:
the luminance obtaining subunit is used for obtaining the luminance of the ETC portal camera image through a residual error network Resnet;
and the light intensity acquisition subunit acquires the light intensity of the current environment of the ETC portal according to the brightness of the image.
Preferably, the switching control unit includes:
the method comprises the steps that a subunit is started, if the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal is started, and if the main light supplement lamp fails, a spare light supplement lamp is started;
and closing the subunit, and closing the main light supplement lamp or the auxiliary light supplement lamp which is opened by the ETC portal if the light intensity of the current environment is higher than a preset threshold value.
Preferably, the adjusting unit includes:
the line intensity change acquiring subunit is used for acquiring the light intensity change of the current environment according to the brightness of the ETC portal camera image;
the duty ratio adjusting subunit is used for increasing the duty ratio of the ETC portal fill light according to the change value of the light intensity and compensating the light intensity of the current environment if the light intensity of the current environment is weakened from strong;
the duty ratio adjusting subunit reduces the duty ratio of the ETC portal fill light according to the change value of the light intensity if the light intensity of the current environment changes from weak to strong;
the light filling lamp closes the subunit, if the light intensity of current environment is higher than when predetermineeing the threshold value to close the light filling lamp that the ETC portal has opened.
Preferably, the method further comprises the following steps:
the monitoring subunit monitors the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame;
the starting subunit starts the standby camera when the main camera fails;
and the starting subunit starts the spare supplementary lighting lamp when the main supplementary lighting lamp fails.
According to the automatic control method and device for the ETC portal light supplement lamp, the main and standby light supplement lamps are kept to be opened only one at the same time through opening and closing of the automatic control light supplement lamp, the duty ratio of the ETC portal light supplement lamp is adjusted in real time according to the change of the light intensity of the environment where the portal is located, the brightness of the light supplement lamp is adjusted, and the problems that the driving potential safety hazard caused by simultaneous opening of the main and standby light supplement lamps and the energy consumption caused by the fact that the main and standby light supplement lamps are simultaneously opened and the brightness cannot be adjusted are solved.
Drawings
Fig. 1 is a schematic flow chart of an automatic control method for an ETC portal fill light provided by the present application;
FIG. 2 is a schematic structural view of an ETC portal system according to the present application;
fig. 3 is an architecture diagram of an ETC portal system integrated management platform according to the present application;
FIG. 4 is a block diagram of ETC portal system software deployment to which the present application relates;
fig. 5 is a schematic diagram of an automatic control device for an ETC portal fill light provided by the present application.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
The application provides an automatic control method of an ETC portal fill light, the control flow of which is shown in fig. 1, and the method provided by the application is explained in detail with reference to fig. 1.
And S101, obtaining the light intensity of the current environment of the ETC portal.
The ETC portal is positioned on each toll collection channel and is generally positioned in an outdoor environment, and the light intensity of the outdoor environment can change along with the change of time and weather. The light filling lamp is installed on the ETC portal, generally every portal frame installs two sets of cameras of activestandby and light filling lamp, and a light filling lamp is connected to every camera, and opening of light filling lamp is by artificial control, and two light filling lamps are often bright at night.
According to the automatic control method of the light supplement lamp, firstly, the brightness of an ETC portal camera image is obtained through a residual error network Resnet, the portal camera shoots the image, and then the image is analyzed through the residual error network Resnet to obtain the brightness of the image. According to the brightness of the image, the light intensity of the current environment of the ETC portal frame is obtained.
And S102, according to the light intensity of the environment, a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp is turned on or turned off.
If the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal frame is started, and if the main light supplement lamp fails, a spare light supplement lamp is started; and if the light intensity of the current environment is higher than the preset threshold value, closing the main light supplement lamp or the auxiliary light supplement lamp which is started by the ETC portal. For example, in the daytime, the illumination is strong, the brightness of the image of the ETC portal camera is obtained through the residual error network Resnet at regular time, the light intensity of the current environment is further obtained, and through further judgment, when the camera shoots under the current environment, the light supplement lamp is not needed for light supplement, so that the main and standby light supplement lamps are automatically turned off. Under the circumstances that the sky colour changes dark, perhaps cloudy day light is not enough, through the light intensity who obtains current environment, judge, think under the current environment, need the light filling lamp to carry out the light filling when the camera shoots, the light filling lamp can open automatically this moment. The method comprises the steps of firstly, starting a main light supplement lamp, starting a spare light supplement lamp when a fault of the main light supplement lamp is monitored, and starting only one main light supplement lamp at the same time so as to avoid driving potential safety hazards and energy consumption caused by the fact that the light supplement lamps are turned on too bright at the same time.
And S103, when the light supplement lamp is started, adjusting the duty ratio of the ETC portal light supplement lamp in real time according to the change of the light intensity of the environment so as to ensure the definition of the image of the ETC portal camera and complete the automatic control of the light supplement lamp.
This application is in the control of light filling lamp, not only can the opening and closing of automatic control light filling lamp, can also adjust the luminance of light filling lamp according to the change of light intensity. Specifically, the light intensity in different time periods is different, the change in the morning and evening is more obvious, the brightness of the image of the ETC portal camera is obtained through a residual error network Resnet at regular time, and the light intensity change of the current environment is obtained according to the brightness of the image of the ETC portal camera; if the light intensity of the current environment is weakened from strong, such as in the evening, the duty ratio of an ETC portal fill light is increased according to the change value of the light intensity, and the light intensity of the current environment is compensated, so that the definition of an image of an ETC portal camera is ensured; if the light intensity of the current environment changes from weak to strong, such as in the morning, reducing the duty ratio of the ETC portal light supplementing lamp according to the change value of the light intensity; in the adjusting process, if the light intensity of the current environment is higher than a preset threshold value, the light supplement lamp which is opened by the ETC portal frame is closed.
In practical application, corresponding management strategies can be configured in advance for the gantry light supplement lamp in a certain area, for example, the light supplement lamp can be turned on and turned off according to time or light, if the time is selected, the light supplement lamp can be turned on and turned off according to the set time period, and if the light is selected, the light supplement lamp can be turned on and turned off according to the intensity of the light.
On the basis of controlling the light supplement lamp, the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame are monitored; when the main camera fails, starting the standby camera; and when the main light supplement lamp fails, starting the auxiliary light supplement lamp.
The specific application examples are as follows:
based on ETC portal system in a certain urban area, the function is as shown in figure 2, and portal and two snapshot machines in lane (one is main and is equipped with) connect the redundant scheme of two light filling lamps respectively, reflect that two light filling lamps of high-speed driving at night shine the road and have the visual effect to driving the vehicle according to the driver, optimize to reducing light pollution, energy-concerving and environment-protective, promotion fortune dimension service level and reduction fortune dimension cost scheduling problem simultaneously.
The related modules comprise portal equipment monitoring management software, portal equipment management software, a portal monitoring library, a main camera, a main light supplement lamp, a standby camera and a standby light supplement lamp in the picture 2.
And the optimized system performs unified access and management on main/spare light-compensating lamps of all ETC gantries in the region. Need dispose the light filling lamp and insert the module at every ETC portal edge computing equipment, carry out customization protocol control development to the light filling lamp. Only the main or the standby group of the light supplement lamps is turned on. The aims of reducing complaints, saving energy, protecting environment, reducing failure rate and the like are achieved.
The method includes the steps that multiple parameters of the light supplement lamp can be controlled remotely, specifically, the lighting closing time, the brightness duty ratio and the like are included, the brightness duty ratio calculates the conditions of a current camera, a shot picture and a license plate recognition according to a residual error network Resnet, and the specific ambient brightness condition is shown to adjust the duty ratio of the light supplement lamp.
The strategy customization module mainly comprises two core functions of time strategy customization and scope strategy customization. The user can make different time period strategies according to actual conditions and aiming at different roads, different gantries and even different cameras. The user can also optionally choose high speed, portal or camera to make the same strategy in batch. And different scene requirements are met to the maximum extent.
Meanwhile, online and offline of the equipment and related faults can be automatically warned, operation and maintenance are facilitated, and operation and maintenance efficiency is improved. The function belongs to the function of a front-end control service module, the state detection module monitors the running state of the camera and the running state of the light supplement lamp in real time at regular time, and the monitored running state is abnormal and is reported to the comprehensive management platform in time. And prompt and feedback which are timely and striking are provided, so that a user can conveniently grasp and process the information in time.
The ETC portal system software deployment block diagram is shown in FIG. 4. The method mainly comprises the steps that a deep learning artificial intelligence algorithm is adopted for state detection of the light supplement lamp, the method mainly comprises the functions of main light supplement lamp detection, standby light supplement lamp detection, intelligent brightness analysis, light supplement lamp state reporting and the like, the input of the intelligent brightness analysis is an image captured by the main light supplement lamp, a renet deep learning model is adopted for brightness judgment of the image, and the brightness level of the image and the state of whether the light supplement lamp is turned off are output. And the front-end control system provides a user operation interface, receives control parameters and control instructions input by an operator, and calls the background service interface to return result data. As shown in fig. 3, the comprehensive management platform receives a front-end operation instruction through an HTTP protocol, and sends a communication protocol to control portal equipment, such as a camera, a fill-in light, a radar, and the like, through an SDK.
Based on the same inventive concept, the application also provides an automatic control device of the ETC portal fill light, as shown in FIG. 5, comprising;
the light intensity acquiring unit 510 is used for acquiring the light intensity of the current environment of the ETC portal;
the switch control unit 520 is used for turning on or off a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp according to the light intensity of the environment;
and the adjusting unit 530 is used for adjusting the duty ratio of the ETC portal light supplementing lamp in real time according to the change of the light intensity of the environment when the light supplementing lamp is opened so as to ensure the definition of the image of the ETC portal camera and complete the automatic control of the light supplementing lamp.
Preferably, the light intensity acquiring unit includes:
the luminance obtaining subunit is used for obtaining the luminance of the ETC portal camera image through a residual error network Resnet;
and the light intensity acquisition subunit acquires the light intensity of the current environment of the ETC portal according to the brightness of the image.
Preferably, the switching control unit includes:
the method comprises the steps that a subunit is started, if the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal is started, and if the main light supplement lamp fails, a spare light supplement lamp is started;
and closing the subunit, and closing the main light supplement lamp or the auxiliary light supplement lamp which is opened by the ETC portal if the light intensity of the current environment is higher than a preset threshold value.
Preferably, the adjusting unit includes:
the line intensity change acquiring subunit is used for acquiring the light intensity change of the current environment according to the brightness of the ETC portal camera image;
the duty ratio adjusting subunit is used for increasing the duty ratio of the ETC portal fill light according to the change value of the light intensity and compensating the light intensity of the current environment if the light intensity of the current environment is weakened from strong;
the duty ratio adjusting subunit reduces the duty ratio of the ETC portal fill light according to the change value of the light intensity if the light intensity of the current environment changes from weak to strong;
the light filling lamp closes the subunit, if the light intensity of current environment is higher than when predetermineeing the threshold value to close the light filling lamp that the ETC portal has opened.
Preferably, the method further comprises the following steps:
the monitoring subunit monitors the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame;
the starting subunit starts the standby camera when the main camera fails;
and the starting subunit starts the spare supplementary lighting lamp when the main supplementary lighting lamp fails.
According to the automatic control method and device for the ETC portal light supplement lamp, the main and standby light supplement lamps are kept to be opened only one at the same time through opening and closing of the automatic control light supplement lamp, the duty ratio of the ETC portal light supplement lamp is adjusted in real time according to the change of the light intensity of the environment where the portal is located, the brightness of the light supplement lamp is adjusted, and the problems that the driving potential safety hazard caused by simultaneous opening of the main and standby light supplement lamps and the energy consumption caused by the fact that the main and standby light supplement lamps are simultaneously opened and the brightness cannot be adjusted are solved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention.

Claims (10)

1. The utility model provides a ETC portal light filling lamp automatic control method which characterized in that includes:
acquiring the light intensity of the current environment of the ETC portal;
according to the light intensity of the environment, a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp is turned on or turned off;
when the light filling lamp is opened, according to the change of the light intensity of environment, adjust ETC portal light filling lamp duty cycle in real time to guarantee the definition of ETC portal camera image, accomplish the automatic control of light filling lamp.
2. The method according to claim 1, wherein obtaining the light intensity of the current environment of the ETC portal comprises:
acquiring the brightness of an ETC portal camera image through a residual error network Resnet;
and obtaining the light intensity of the current environment of the ETC portal according to the brightness of the image.
3. The method according to claim 1, wherein the turning on or off of a main fill light or a spare fill light of the ETC portal fill light according to the light intensity of the environment comprises:
if the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal frame is started, and if the main light supplement lamp fails, a spare light supplement lamp is started;
and if the light intensity of the current environment is higher than the preset threshold value, closing the main light supplement lamp or the auxiliary light supplement lamp which is started by the ETC portal.
4. The method according to claim 1, wherein when the fill light is turned on, adjusting the duty cycle of the fill light of the ETC gantry in real time according to the change of the light intensity of the environment comprises:
acquiring the light intensity change of the current environment according to the brightness of the ETC portal camera image;
if the light intensity of the current environment is weakened from strong, increasing the duty ratio of the ETC portal fill light according to the change value of the light intensity, and compensating the light intensity of the current environment;
if the light intensity of the current environment changes from weak to strong, reducing the duty ratio of a light supplement lamp of the ETC portal according to the change value of the light intensity;
and if the light intensity of the current environment is higher than the preset threshold value, closing the started light supplement lamp of the ETC portal.
5. The method of claim 1, further comprising:
monitoring the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame;
when the main camera fails, starting the standby camera;
and when the main light supplement lamp fails, starting the auxiliary light supplement lamp.
6. An automatic control device of an ETC portal fill light is characterized by comprising;
the light intensity acquisition unit is used for acquiring the light intensity of the current environment of the ETC portal;
the switch control unit is used for turning on or off a main light supplement lamp or a spare light supplement lamp in the ETC portal light supplement lamp according to the light intensity of the environment;
the adjusting unit is used for working as when the light filling lamp is opened, according to the change of the light intensity of environment, adjust ETC portal light filling lamp duty cycle in real time to guarantee the definition of ETC portal camera image, accomplish the automatic control of light filling lamp.
7. The apparatus of claim 6, wherein the light intensity obtaining unit comprises:
the luminance obtaining subunit is used for obtaining the luminance of the ETC portal camera image through a residual error network Resnet;
and the light intensity acquisition subunit acquires the light intensity of the current environment of the ETC portal according to the brightness of the image.
8. The apparatus of claim 6, wherein the switch control unit comprises:
the method comprises the steps that a subunit is started, if the light intensity of the current environment is lower than a preset threshold value, a main light supplement lamp of the ETC portal is started, and if the main light supplement lamp fails, a spare light supplement lamp is started;
and closing the subunit, and closing the main light supplement lamp or the auxiliary light supplement lamp which is opened by the ETC portal if the light intensity of the current environment is higher than a preset threshold value.
9. The apparatus of claim 6, wherein the adjustment unit comprises:
the line intensity change acquiring subunit is used for acquiring the light intensity change of the current environment according to the brightness of the ETC portal camera image;
the duty ratio adjusting subunit is used for increasing the duty ratio of the ETC portal fill light according to the change value of the light intensity and compensating the light intensity of the current environment if the light intensity of the current environment is weakened from strong;
the duty ratio adjusting subunit reduces the duty ratio of the ETC portal fill light according to the change value of the light intensity if the light intensity of the current environment changes from weak to strong;
the light filling lamp closes the subunit, if the light intensity of current environment is higher than when predetermineeing the threshold value to close the light filling lamp that the ETC portal has opened.
10. The apparatus of claim 6, further comprising:
the monitoring subunit monitors the states of a main camera, a standby camera, a main light supplement lamp and a standby light supplement lamp of the ETC portal frame;
the starting subunit starts the standby camera when the main camera fails;
and the starting subunit starts the spare supplementary lighting lamp when the main supplementary lighting lamp fails.
CN202110454344.XA 2021-04-26 2021-04-26 Automatic control method and device for light supplement lamp of ETC portal Pending CN113329187A (en)

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