CN111653101A - Vehicle snapshot method and vehicle snapshot system - Google Patents
Vehicle snapshot method and vehicle snapshot system Download PDFInfo
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- CN111653101A CN111653101A CN202010440768.6A CN202010440768A CN111653101A CN 111653101 A CN111653101 A CN 111653101A CN 202010440768 A CN202010440768 A CN 202010440768A CN 111653101 A CN111653101 A CN 111653101A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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Abstract
The invention relates to the technical field of traffic monitoring, in particular to a vehicle snapshot method and a vehicle snapshot system. A vehicle snapshot method is applied to a vehicle snapshot system, the vehicle snapshot system comprises a camera unit and a light supplement unit, and the vehicle snapshot method comprises the following steps: acquiring the current illumination intensity through a camera unit, and comparing the current illumination intensity with a set first threshold and a set second threshold; if the number of the vehicle passing through is larger than or equal to the first threshold value, the camera unit shoots the passing vehicle and sends a flashing signal at the same time, and the light supplementing unit receives the flashing signal and turns on a flashing lamp; if the number of the stroboscopic signals is smaller than or equal to the second threshold value, the camera unit shoots the passing vehicle and sends the stroboscopic signals at the same time, and the light supplementing unit receives the stroboscopic signals and turns on the stroboscopic lamp. The invention has the advantages that: the method is simple, and not only can clearly shoot the vehicle and the details of the human face in the vehicle, but also can not cause light pollution.
Description
Technical Field
The invention relates to the technical field of traffic monitoring, in particular to a vehicle snapshot method and a vehicle snapshot system.
Background
In order to reduce the traffic violation, a plurality of road sections have all set up the traffic violation snapshot device, can both clearly shoot vehicle and interior people's face of car in order to realize the stronger daytime of light, the night that light is more weak and overcast and rainy day, need carry out the light filling when the camera is shot.
In the prior art, when motor vehicles are snapshotted at night, the flashing light is usually used for light supplement, and serious light pollution can be caused.
Disclosure of Invention
In order to solve the problems, the invention provides a vehicle snapshot method, which comprises the following technical scheme:
a vehicle snapshot method is applied to a vehicle snapshot system, the vehicle snapshot system comprises a camera unit and a light supplement unit, and the vehicle snapshot method comprises the following steps:
acquiring the current illumination intensity through a camera unit, and comparing the current illumination intensity with a set first threshold and a set second threshold;
if the current illumination intensity is larger than or equal to the first threshold value, the camera unit takes a snapshot of the passing vehicle and sends a flashing signal at the same time, and the light supplementing unit receives the flashing signal and turns on a flashing lamp;
if the current illumination intensity is smaller than or equal to the second threshold value, the camera unit shoots the passing vehicle and sends a stroboscopic signal at the same time, and the light supplementing unit receives the stroboscopic signal and turns on the stroboscopic lamp.
It can be understood that, use the flashing light filling of exploding when light is stronger daytime, use the stroboscopic lamp to carry out the light filling night or overcast and rainy day, not only can clearly snapshot the detail of people's face in vehicle and the vehicle, can not cause light pollution again.
In one embodiment, the fill-in light unit receives and judges whether a strobe signal exists;
if not, the state is the first state, the light supplementing unit receives the flashing signal and controls the flashing light to be turned on, and the stroboscopic light is controlled to be turned off;
if yes, the flash lamp is in a second state, the light supplementing unit receives the stroboscopic signal and controls the stroboscopic lamp to be turned on, and the stroboscopic lamp is controlled to be turned off.
In one embodiment, the burst lamp is capable of emitting a xenon burst flash and the strobe lamp is capable of emitting an LED strobe.
It can be understood that the xenon flash lamp has high brightness, can clearly snapshot, the LED flash lamp can accurately control the flash time, the power return is fast, and the influence on human eyes and the interference of ambient light on the snapshot can be reduced.
In one embodiment, the camera unit has a control module and an information acquisition module, and the information acquisition module is used for acquiring environment information and transmitting the acquired information to the control module.
In one embodiment, the information acquisition module comprises an image sensor, and the image sensor acquires image information and transmits the image information to the control module so that the control module analyzes the image information.
It can be understood that the control module receives the image information from the image sensor for analysis, and can judge not only the current time state thereof, but also whether a vehicle passes through.
In one embodiment, before the step of capturing the passing vehicle by the camera unit, the method further comprises the following steps:
judging whether a vehicle passes through the control module;
if yes, the camera unit carries out snapshot;
and if not, the camera unit does not take a snapshot.
It can be understood that the target can be accurately locked by judging whether the vehicle passes through and then snapshotting, and the phenomenon that the number of shot images is too large, so that extra burden is caused to screening is avoided.
In one embodiment, the step of determining whether a vehicle passes comprises:
the method comprises the steps that image information of a set area is collected by an image sensor, and the image information processed by the image sensor is transmitted to a control module so that the control module can judge whether a passing vehicle exists;
if the vehicle-mounted camera is in the image acquisition state, the camera unit is used for capturing under the coordination of the light supplement unit, and the control module controls the image sensor to be in the image acquisition state after the vehicle passing through is captured.
And if not, the camera unit does not take a snapshot.
In one embodiment, in the second state, the step of the fill light unit receiving the strobe signal and controlling the strobe light to be turned on or turned off further includes:
the camera unit acquires the illumination intensity of the current environment, converts the illumination intensity into a brightness signal and transmits the brightness signal to the control module;
the control module receives the brightness signal and adjusts the brightness of the strobe light according to the brightness signal.
It can be understood that the brightness of the strobe light is controlled to prevent the strobe light from being too dark, which affects the clarity of the camera unit in photographing the vehicle and the face in the vehicle at night or in rainy days, and to avoid the strobe light from being too bright to affect the sight of the driver in the vehicle in the same row.
The invention also provides the following technical scheme:
the utility model provides a vehicle snapshot system, includes camera unit, light filling unit, the light filling unit be used for the camera unit provides supplementary light source, the camera unit with light filling unit signal connection.
In one embodiment, the camera unit comprises a color single camera, and the light supplement unit comprises an integrated multifunctional light supplement lamp.
It can be understood that the camera unit comprises a color single camera, and the light supplementing unit is a multifunctional integrated light supplementing lamp and is simple in structure.
Compared with the prior art, the vehicle snapshot method provided by the invention has the advantages that the flash lamp is used for supplementing light when the light is bright, and the strobe lamp is used for supplementing light when the light is dark, so that the details of the vehicle and the face in the vehicle can be clearly snapshot, the light pollution cannot be caused, and the snapshot method is simple.
Drawings
FIG. 1 is a flow chart of a vehicle capture method provided by the present invention;
fig. 2 is a flowchart illustrating a light supplement unit determining whether a strobe signal exists in the vehicle snapshot method according to the present invention;
FIG. 3 is a flow chart of the control module controlling the brightness of the strobe light in the vehicle capturing method provided by the invention;
fig. 4 is a flowchart for determining whether a vehicle passes through the vehicle snapshot method provided by the present invention;
FIG. 5 is a block diagram of a method for judging whether a vehicle passes through by a control module in the vehicle capturing method provided by the invention;
fig. 6 is a schematic structural diagram of a vehicle snapshot system.
100. A vehicle capture system; 10. a camera unit; 20. a light supplement unit; 30. a cross bar; 200. a lane.
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.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, the vehicle snapshot method provided by the present invention is applied to a vehicle snapshot system, which is installed on a highway and takes a snapshot of a vehicle coming from or going to the highway, so as to determine whether the vehicle violates a traffic rule or whether the vehicle is an illegal vehicle.
Specifically, referring to fig. 1, the vehicle capturing system includes a camera unit and a light supplement unit, and the vehicle capturing method S100 includes:
s10, the camera unit acquires the current illumination intensity, compares the current illumination intensity with a set first threshold value and a set second threshold value, and judges the current state;
s20, if the current illumination intensity is larger than or equal to the first threshold value, the camera unit takes a snapshot of the passing vehicle and sends a flashing signal at the same time, and the light supplementing unit receives the flashing signal and turns on a flashing light;
s30 if the current illumination intensity is less than or equal to the second threshold, the camera unit takes a snapshot of the passing vehicle and sends a stroboscopic signal at the same time, and the light supplement unit receives the stroboscopic signal and turns on the stroboscopic lamp.
It is understood that the first threshold and the second threshold may be set by a user. In this embodiment, the first threshold is set to 30Lux, the second threshold is set to 20Lux, the flashing light is used in the daytime when the illumination intensity is greater than or equal to the first threshold, and the stroboscopic light is used in the night or rainy day when the illumination intensity is less than or equal to the second threshold, so that the details of the vehicle and the face in the vehicle can be clearly captured, and light pollution can not be caused. In other embodiments, the first threshold and the second threshold may be adjusted according to user requirements.
When the illumination intensity is greater than or equal to a first threshold value, turning on the strobe light and turning off the strobe light, and along with the gradual reduction of the illumination intensity, when the illumination intensity is between the first threshold value and a second threshold value, not changing the action until the illumination intensity is less than or equal to the second threshold value, turning on the strobe light and turning off the strobe light; and when the illumination intensity is less than or equal to the second threshold value, the flashing light is turned off and the stroboscopic light is turned on, along with the gradual increase of the illumination intensity, when the illumination intensity is between the first threshold value and the second threshold value, the action is not changed until the illumination intensity is greater than or equal to the first threshold value, the stroboscopic light is turned on and the flashing light is turned off.
The flashing light can send xenon and explode the flash of light, and the stroboscopic lamp can send LED stroboscopic light, promptly, explodes the flash of light and explodes the flash of light for xenon, and the stroboscopic lamp is LED stroboscopic lamp, and xenon explodes the flash of light luminance height, can clearly take a candid photograph, and LED stroboscopic lamp can control flash time accurately, and the return electricity is fast, can reduce the influence to people's eye and reduce the interference of ambient light to taking a candid photograph. In this embodiment, the xenon gas explosion flash is a white light xenon gas explosion flash, and the LED strobe flash is a white light LED strobe. Of course, in other embodiments, the light may be supplemented by an infrared burst flash or other types of light during the daytime when the light is strong, or by other types of strobe light during the night when the light is weak or during rainy days.
The camera unit is provided with a control module and an information acquisition module, wherein the information acquisition module is used for acquiring environment information and transmitting the acquired information to the control module.
Referring to fig. 2, in step S30, the light supplement unit receiving the strobe signal further includes step S31 in which the light supplement unit determines whether the strobe signal is present, and the light supplement unit receiving the control signal from the control module determines whether the strobe signal is present;
if the signal is in the first state, the light supplementing unit receives an explosion flash signal sent by the control module, controls the explosion flash lamp to be turned on, and controls the strobe lamp to be turned off, wherein in the embodiment, the explosion flash lamp sends out white light xenon explosion flash;
if not, S312 is in the second state, the light supplement unit receives the strobe signal sent by the control module, and controls the strobe light to turn on, and the strobe light to turn off, in this embodiment, the strobe light sends out the white LED strobe light.
It will be appreciated that the first state is daytime when the light is strong, and the second state is nighttime or rainy when the light is weak.
In the second state, when the vehicle needs to be snapshot, the strobe light needs to be turned on, and the control module controls the brightness of the strobe light to prevent the snapshot image from being unclear due to too weak strobe light and affecting the sight of the driver due to too strong strobe light, so that the method S3121 for controlling the brightness of the strobe light is further included in step S312, please refer to fig. 3:
s31211 the camera unit obtains the illumination intensity of the current environment, converts the illumination intensity into a brightness signal and transmits the brightness signal to the control module;
and S31212 the control module receives the brightness signal and adjusts the brightness of the strobe light according to the brightness signal.
In step S31212, the method for adjusting the brightness of the strobe light includes outputting different pulse widths to the fill-in light unit by the control module, so as to control the brightness of the strobe light.
Further, referring to fig. 4, before the camera unit captures the passing vehicle, the control module needs to determine whether there is a vehicle passing through the lane at present, so as to prevent that too many images are captured, which results in huge data and requires huge screening work, and step S40 of determining that the vehicle passes through is:
s401, if yes, the camera unit takes a snapshot;
and S402, if not, the camera unit does not capture the image.
The information acquisition module comprises an image sensor, the image sensor acquires image information and transmits the image information to the control module, so that the control module analyzes the image information. The control module acquires the illumination intensity according to the image information, compares the illumination intensity with the first threshold and the second threshold, and judges whether the image is in the first state or the second state. If the state is the first state, the control module sends out an explosion flash signal, and if the state is the second state, the control module sends out a strobe signal.
After receiving the information transmitted by the image sensor, the control module analyzes the image information, and not only can acquire the illumination intensity of the current environment and determine whether the current environment is in the first state or the second state, but also can analyze whether a vehicle passes through the set area, so that the structure can be simplified, and in step S40 of determining vehicle passing, the method S41 of how to determine vehicle passing is included, please refer to fig. 5:
s411, collecting optical signals of a set area by using an image sensor, converting the optical signals into electric signals, and transmitting the electric signals to a control module;
s412, judging whether a passing vehicle exists by the control module;
s4121, if the vehicle passing vehicle passes through the camera unit, the camera unit takes a snapshot under the coordination of the light supplementing unit, and the control module controls the image sensor to be in an image acquisition state after the snapshot vehicle passes through;
s4122, if not, the camera unit does not take a snapshot.
In other embodiments, the laser may scan the set area, and the scanning result may be transmitted to the control module. It should be noted that the setting region refers to a region to be captured, and may be adjusted according to a target region.
Referring to fig. 6, the present invention further provides a vehicle capturing system 100, and the vehicle capturing method can be applied to the vehicle capturing system 100, and includes a camera unit 10 and a light supplement unit 20, where the light supplement unit 20 is used for providing a light supplement source for the camera unit 10, and the camera unit 10 is in signal connection with the light supplement unit 20. In the present embodiment, the camera unit 10 and the fill-in light unit 20 are electrically connected by a cable, and certainly, in other embodiments, a wireless signal connection may also be performed.
Specifically, the camera unit 10 includes a housing (not shown) having a window (not shown) at one end thereof and a camera (not shown), the camera is disposed in the window of the housing and used for shooting a vehicle, the camera is a color single camera, and the camera is simple in structure, capable of meeting shooting requirements and avoiding color cast of a shot image when shooting with a color black and white dual-fusion camera.
Preferably, the light filling unit adopts multi-functional integrative light filling lamp, possesses the stroboscopic lamp simultaneously and explodes the function of flashing lamp, has simplified the structure.
In this embodiment, the stroboscopic lamp can send white light LED stroboscopic light, and the flashing light explodes the flashing light can send white light xenon and explodes the flashing light, and white light xenon explodes the flashing light luminance height, can effectively promote the photo effect. Of course, in other embodiments, the strobe light may also be an infrared strobe or other type of light, and the strobe light may also be another strobe light.
In this embodiment, the camera units are mounted between the lanes by vertical rods (not shown), and the light supplement units are two and are respectively mounted on two sides of the camera unit 10 by the cross bar 30. Of course, in other embodiments, the camera unit 10 may be installed at other positions according to the shooting requirement, and the light supplement unit 20 may be provided in other numbers.
The camera unit 10 further includes a control module (not shown) and an information collecting module (not shown), the control module and the information collecting module are disposed in the housing and are in signal connection with each other, and the information collecting module is configured to collect environmental information and transmit the collected information to the control module. In this embodiment, the control module is a PCB, and in other embodiments, the control module may be other.
Further, the information acquisition module includes an image sensor (not shown), the image sensor is disposed in the housing, the image sensor acquires image information and transmits the image information to the control module, and the control module analyzes the received image information. In this embodiment, the image sensor is a Charge Coupled Device (CCD) image sensor, but in other embodiments, a Complementary Metal Oxide Semiconductor (CMOS) image sensor or other types of image sensors may also be used.
The image sensor converts the collected optical signals into electric signals, and then transmits the electric signals to the control module, and the control module judges the current state and judges whether a vehicle passes through the control module.
In the working process, the image sensor collects image information and transmits the image information to the control module, and the control module judges whether the image sensor is in a first state or a second state and judges whether vehicles pass at the moment; if a vehicle passes through and the vehicle is judged to be in the first state at present, the light supplementing unit starts the flashing lamp to emit the flashing light for supplementing light, and the camera performs snapshot; if a vehicle passes through and the vehicle is judged to be in the second state currently, a light supplementing single power supply starts a strobe lamp to emit strobe light to supplement light, and a camera performs snapshot; if no vehicle passes through, no matter whether the current state is the first state or the second state is judged, the snapshot is not carried out.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A vehicle snapshot method is applied to a vehicle snapshot system, the vehicle snapshot system comprises a camera unit and a light supplement unit, and the vehicle snapshot method is characterized by comprising the following steps:
acquiring the current illumination intensity through a camera unit, and comparing the current illumination intensity with a set first threshold and a set second threshold;
if the current illumination intensity is larger than or equal to the first threshold value, the camera unit takes a snapshot of the passing vehicle and sends a flashing signal at the same time, and the light supplementing unit receives the flashing signal and turns on a flashing lamp;
if the current illumination intensity is smaller than or equal to the second threshold value, the camera unit shoots the passing vehicle and sends a stroboscopic signal at the same time, and the light supplementing unit receives the stroboscopic signal and turns on the stroboscopic lamp.
2. The vehicle snap-shooting method according to claim 1,
the light supplementing unit receives and judges whether a stroboscopic signal exists or not;
if not, the state is the first state, the light supplementing unit receives the flashing signal and controls the flashing light to be turned on, and the stroboscopic light is controlled to be turned off;
if yes, the flash lamp is in a second state, the light supplementing unit receives the stroboscopic signal and controls the stroboscopic lamp to be turned on, and the stroboscopic lamp is controlled to be turned off.
3. The vehicle snap-shot method according to claim 1, wherein said strobe light is capable of emitting a xenon strobe light and said strobe light is capable of emitting an LED strobe light.
4. The vehicle snapshot method of claim 1, wherein the camera unit comprises a control module and an information collection module, and the information collection module is configured to collect information about an environment and transmit the collected information to the control module.
5. The vehicle capturing method according to claim 4, wherein the information collecting module includes an image sensor, and the image sensor collects image information and transmits the image information to the control module so that the control module analyzes the image information.
6. The vehicle snap-shot method according to claim 5, characterized by further comprising, before the step of the camera unit snapping the passing vehicle, the steps of:
judging whether a vehicle passes through the control module;
if yes, the camera unit carries out snapshot;
and if not, the camera unit does not take a snapshot.
7. The vehicle snapshot method of claim 6, wherein the step of determining whether a vehicle passes comprises:
the method comprises the steps that image information of a set area is collected by an image sensor, and the image information processed by the image sensor is transmitted to a control module so that the control module can judge whether a passing vehicle exists;
if yes, the camera unit performs snapshot under the coordination of the light supplement unit, and after the snapshot passing vehicle is finished, the control module controls the image sensor to be in an image acquisition state;
and if not, the camera unit does not take a snapshot.
8. The vehicle snapshot method of claim 5, wherein in the second state, the step of receiving the strobe signal and controlling the strobe light to be turned on before or after the strobe light is turned on further comprises:
the camera unit acquires the illumination intensity of the current environment, converts the illumination intensity into a brightness signal and transmits the brightness signal to the control module;
the control module receives the brightness signal and adjusts the brightness of the strobe light according to the brightness signal.
9. The vehicle snapshot system is characterized by comprising a camera unit and a light supplement unit, wherein the light supplement unit is used for providing a supplement light source for the camera unit, and the camera unit is in signal connection with the light supplement unit.
10. The vehicle capture system of claim 9, wherein the camera unit comprises a color single camera and the fill light unit comprises an integral, multi-function fill light.
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| CN113538926A (en) * | 2021-05-31 | 2021-10-22 | 浙江大华技术股份有限公司 | Face snapshot method, face snapshot system and computer-readable storage medium |
| CN114257751A (en) * | 2021-12-17 | 2022-03-29 | 航天信息股份有限公司 | Follow-up light filling system |
| CN116543567A (en) * | 2023-06-29 | 2023-08-04 | 功道(深圳)科技实业有限公司 | License plate discernment all-in-one |
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