CN110751827B - Method and device for outputting prompt information, intelligent street lamp and readable storage medium - Google Patents
Method and device for outputting prompt information, intelligent street lamp and readable storage medium Download PDFInfo
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- CN110751827B CN110751827B CN201810821847.4A CN201810821847A CN110751827B CN 110751827 B CN110751827 B CN 110751827B CN 201810821847 A CN201810821847 A CN 201810821847A CN 110751827 B CN110751827 B CN 110751827B
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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
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/167—Driving aids for lane monitoring, lane changing, e.g. blind spot detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
Abstract
The disclosure relates to a method and a device for outputting prompt information, an intelligent street lamp and a readable storage medium. The method is applied to the intelligent street lamp, when the driving intention of the target vehicle is detected to be that the target vehicle drives into the target electronic fence, the current position of the target vehicle is obtained, when the minimum distance between the current position and the target electronic fence is less than a first preset distance, determining whether a preset condition that the target vehicle enters the target electronic fence is met, when the preset condition is not met, the prompt message is output to the driver of the target vehicle, so that the driver can know that the target vehicle is dangerous to drive into the target electronic fence at the moment and possibly collides with other vehicles, the driver may then stop driving the target vehicle into the target electronic fence to avoid traffic accidents, and, in addition, according to the scheme, whether the target vehicle can safely drive into the target electronic fence or not is judged through the intelligent street lamp, the accuracy of the judgment result can be improved, and meanwhile, the intelligence of the street lamp is also improved.
Description
Technical Field
The present disclosure relates to the field of lighting technologies, and in particular, to a method and an apparatus for outputting prompt information, an intelligent street lamp, and a readable storage medium.
Background
In recent years, with the development of science and technology and economy, the vehicle holding amount is synchronously increased. With the increase of vehicles running on roads, traffic accidents are more and more common in people's daily life. The causes of traffic accidents are various, but the causes of serious traffic accidents are mostly overspeed driving, random lane changing and the like. The method mainly comprises the steps that a driver observes the position of a rear vehicle through a rearview mirror in the vehicle lane changing process, and subjectively selects the time suitable for lane changing according to the observed position of the vehicle, but when lane changing is carried out in the mode, the requirement on the driving experience of the driver is high, and for some drivers with insufficient experience, collision can be caused in the lane changing process due to inaccurate judgment on the position of the rear vehicle. Therefore, a method for automatically determining whether a lane change is safe or not during lane change is needed to assist a driver in safely changing lanes.
Disclosure of Invention
In order to overcome the problems in the related art, the present disclosure provides a method and an apparatus for outputting prompt information, an intelligent street lamp, and a readable storage medium.
According to a first aspect of the embodiments of the present disclosure, a method for outputting prompt information is provided, which is applied to an intelligent street lamp, and the method includes:
when detecting that a driving intention of a target vehicle passing below the intelligent street lamp is to drive into a target electronic fence, acquiring the current position of the target vehicle, wherein the target electronic fence is a lane to which the target vehicle is to drive;
when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance, determining whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence;
and when the vehicle information in the target electronic fence does not meet the preset condition, outputting first prompt information to prompt a driver of the target vehicle to prohibit the target vehicle from driving into the target electronic fence.
Optionally, the method further comprises:
and outputting second prompt information to prompt a driver of the target vehicle to drive the target vehicle into the target electronic fence when the vehicle information in the target electronic fence meets the preset condition.
Optionally, the vehicle information includes a traveling speed of a vehicle, the preset condition includes that the traveling speed of the vehicle is less than a preset traveling speed, and determining whether the vehicle information in the target electronic fence meets the preset condition that the target vehicle travels into the target electronic fence includes:
counting other vehicles with the distance to the current position of the target vehicle being smaller than a second preset distance, wherein the other vehicles are vehicles located in the target electronic fence;
acquiring the running speed of the other vehicles;
determining whether the travel speed of the other vehicle is less than the preset travel speed.
Optionally, the determining, by the vehicle information including a traffic density, the preset condition including that the traffic density is smaller than a preset traffic density, whether the vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence includes:
acquiring the traffic density in the target electronic fence within a preset time period;
and determining whether the traffic density in the target electronic fence is less than the preset traffic density.
Optionally, the method further comprises:
acquiring a running route of the target vehicle passing below the intelligent street lamp within a preset time period;
when the driving route is close to the position of the target electronic fence, determining that the driving intention of the target vehicle is to enter the target electronic fence.
Optionally, after the first prompt information is output when the driving state of the other vehicle does not satisfy the preset condition, the method further includes:
and limiting the target vehicle to run so as to prohibit the target vehicle from running into the range of the target electronic fence.
According to a second aspect of the embodiments of the present disclosure, there is provided a device for outputting prompt information, which is applied to an intelligent street lamp, the device including:
the intelligent street lamp driving system comprises a first obtaining module, a second obtaining module and a driving module, wherein the first obtaining module is used for obtaining the current position of a target vehicle when detecting that the target vehicle passing through the lower part of the intelligent street lamp is about to drive into a target electronic fence, and the target electronic fence is a lane to which the target vehicle is about to drive;
the first determining module is used for determining whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence or not when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance;
and the first output module is used for outputting first prompt information when the vehicle information in the target electronic fence does not meet the preset condition so as to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence.
Optionally, the apparatus further comprises:
and the second output module is used for outputting second prompt information when the vehicle information in the target electronic fence meets the preset condition so as to prompt a driver of the target vehicle to drive the target vehicle into the target electronic fence.
Optionally, the vehicle information includes a running speed of the vehicle, the preset condition includes that the running speed of the vehicle is less than a preset running speed, and the first determining module includes:
the counting submodule is used for counting other vehicles, the distance between the other vehicles and the current position of the target vehicle is smaller than a second preset distance, wherein the other vehicles are vehicles positioned in the target electronic fence;
the first obtaining submodule is used for obtaining the running speed of the other vehicles;
a first determination submodule for determining whether the travel speed of the other vehicle is less than the preset travel speed.
Optionally, the vehicle information includes traffic density, the preset condition includes that the traffic density is smaller than a preset traffic density, and the first determining module includes:
the second acquisition submodule is used for acquiring the traffic density in the target electronic fence in a preset time period;
and the second determining submodule is used for determining whether the traffic density in the target electronic fence is smaller than the preset traffic density.
Optionally, the apparatus further comprises:
the second acquisition module is used for acquiring a running route of the target vehicle passing through the lower part of the intelligent street lamp in a preset time period;
and the second determination module is used for determining that the driving intention of the target vehicle is the driving intention into the target electronic fence when the driving route is close to the position of the target electronic fence.
Optionally, after the first prompt information is output when the driving state of the other vehicle does not satisfy the preset condition, the apparatus further includes:
and the limiting module is used for limiting the running of the target vehicle so as to prohibit the target vehicle from entering the range of the target electronic fence.
According to a third aspect of the embodiments of the present disclosure, there is provided an intelligent street lamp, including: the device comprises a light source, a heat dissipation assembly, a processor and a memory;
the heat dissipation assembly comprises heat-conducting silicone grease, the processor, the memory and the light source are arranged above the heat dissipation assembly, and the processor is connected with the memory and the light source respectively;
the memory is used for storing computer program instructions, which when executed by the processor implement the method of outputting hint information according to the first aspect of the embodiments of the present disclosure.
Optionally, the heat-conducting silicone grease is prepared from a specific composition, the specific composition comprises 10-60 parts by weight of silicone oil, 50-150 parts by weight of a first filler, 50-150 parts by weight of a second filler and optionally an auxiliary agent, based on 100 parts by weight of the silicone oil; the first filler comprises a metal heat conductor and a phase-change material, and the weight ratio of the metal heat conductor to the phase-change material is 1: (0.2 to 2.5); the second filler comprises carbon nanotubes and graphene, and the weight ratio of the carbon nanotubes to the graphene is 1: (1-20).
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the steps of the method according to the first aspect of embodiments of the present disclosure.
Through the technical scheme, when the driving intention of the target vehicle is to drive into the target electronic fence, the current position of the target vehicle is obtained, when the minimum distance between the current position and the target electronic fence is smaller than a first preset distance, the vehicle information in the target electronic fence is judged, whether the preset condition that the target vehicle drives into the target electronic fence is met or not is determined, namely, whether the target vehicle can safely drive into the target electronic fence or not is determined according to the vehicle information in the target electronic fence, when the vehicle information in the target electronic fence does not meet the preset condition that the target vehicle drives into the electronic fence, the fact that the target vehicle drives into the target electronic fence at the moment is indicated, vehicle collision is possible to happen, therefore, the intelligent street lamp outputs prompt information, and a driver of the target vehicle can know that the target vehicle is dangerous when driving into the target electronic fence at the moment, the driver may then stop driving the target vehicle into the target electronic fence to avoid traffic accidents. In addition, the above scheme is that whether the target vehicle safely drives into the target electronic fence is met or not is objectively judged by the intelligent street lamp, so that the accuracy of the judgment result can be improved, and meanwhile, the intelligence of the street lamp is improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a flowchart of a method for outputting a prompt message according to an embodiment of the present disclosure.
Fig. 2 is another flowchart of a method for outputting a prompt message according to an embodiment of the present disclosure.
Fig. 3 is another flowchart of a method for outputting a prompt message according to an embodiment of the present disclosure.
Fig. 4 is a block diagram of an apparatus for outputting prompt information provided by an embodiment of the present disclosure.
Fig. 5 is a schematic view of an intelligent street lamp provided by the embodiment of the disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In general, when the driver's subjective awareness is relied on to judge the vehicle information in the lane to be changed to determine whether the vehicle is suitable for changing the lane, if the judgment on the vehicle distance and the vehicle speed in the lane to be changed is not accurate, the vehicle may collide in the lane changing process, so that a method for automatically judging whether the lane can be changed safely and automatically sending a lane change prompt before changing the lane is needed to overcome the defect of traffic accidents caused by the inaccurate judgment on the vehicle information in the lane to be changed.
In order to achieve the above object, the present disclosure provides a method, an apparatus, a street lamp and a readable storage medium for outputting a prompt message, where the method is applied to an intelligent street lamp, the intelligent street lamp acquires a current position of a target vehicle when detecting that a driving intention of a vehicle passing under the street lamp (hereinafter, referred to as a target vehicle) is to drive into a target electronic fence, and determines whether vehicle information in the target electronic fence satisfies a condition that the target vehicle drives into the target electronic fence when a minimum distance between the current position and the target electronic fence is smaller than a first preset distance, that is, determines whether the target vehicle can safely drive into the target electronic fence, and outputs the prompt message to a driver of the target vehicle when determining that the target vehicle cannot safely drive into the target electronic fence, so that the driver knows that the target vehicle is dangerous at this time when driving into the target electronic fence, the intelligent street lamp driving system has the advantages that the intelligent street lamp driving system can collide with other vehicles, and then the driver can stop driving the target vehicle into the target electronic fence, so that traffic accidents are avoided.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for outputting a prompt message according to an embodiment of the disclosure. As shown in fig. 1, the method for outputting prompt information provided by the embodiment of the present disclosure is applied to an intelligent street lamp, and includes the following steps:
step S11: when detecting that a driving intention of a target vehicle passing below the intelligent street lamp is to drive into a target electronic fence, acquiring the current position of the target vehicle, wherein the target electronic fence is a lane to which the target vehicle is to drive;
step S12: when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance, determining whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence;
step S13: and when the vehicle information in the target electronic fence does not meet the preset condition, outputting first prompt information to prompt a driver of the target vehicle to prohibit the target vehicle from driving into the target electronic fence.
In step S11, when the target vehicle passes under the intelligent street lamp, that is, the intelligent street lamp can collect the target vehicle, specifically: the target vehicle can be collected by a signal collection device or an image collection device arranged on the intelligent street lamp, accordingly, the target vehicle passing through the intelligent street lamp is a vehicle in a collection area covered by the signal collection device or the image collection device, wherein the signal collection unit can be a radar probe and any equipment with signal transmitting and receiving functions, and the image collection device can be a camera, a monitor and the like.
When the intelligent street lamp collects the target vehicle, the intelligent street lamp establishes communication connection with the target vehicle, so that the driving route of the target vehicle can be known, and the driving intention of the target vehicle can be detected. Alternatively, the embodiment of detecting the driving intention of the target vehicle may be: and acquiring a running route of a target vehicle passing through the lower part of the intelligent street lamp in a preset time period, and determining that the running intention of the target vehicle is to enter the target electronic fence when the running route is close to the position of the target electronic fence.
Specifically, the intelligent street lamp may communicate through at least one of bluetooth, WiFi (Wireless Fidelity; Wireless local area network) or radio frequency, and in the process of communicating with the target vehicle, the driving route of the target vehicle may be acquired from a navigation system of the target vehicle, where the driving route may be the whole route from the starting position to the ending position of the target vehicle, or may be a section of route appearing in the acquisition area covered by the signal acquisition device or the image acquisition device of the intelligent street lamp in the whole route.
After the driving route of the target vehicle is acquired, the intelligent street lamp compares the driving route with the range of the target electronic fence to determine whether the driving route is at least partially overlapped with the target electronic fence, that is, whether at least part of the driving route appears in the target electronic fence, wherein the target electronic fence is a lane to which the target vehicle is going to drive, and the boundary position of the target electronic fence is the position of a lane line of the lane to which the target vehicle is going to drive, wherein when the intelligent street lamps are installed on two sides of a road, the position of the lane line of each lane can be stored in the intelligent street lamp, that is, the position information of the target electronic fence is stored in the intelligent street lamp, therefore, after the intelligent street lamp acquires the driving route of the target vehicle, according to the driving route and the position information of the target electronic fence, and determining whether the driving route is close to the target electronic fence, and when the driving route is close to the target electronic fence, indicating that the target vehicle possibly needs to change the lane into the target electronic fence, so that the driving intention of the target vehicle can be determined to be driving into the target electronic fence.
In practical application, vehicles in the target electronic fence are in a driving state, and the position of each vehicle changes at different times, so that the vehicle information detected by the intelligent street lamp at different times in the target electronic fence is also different, for example: when the intelligent street lamp detects the vehicle information in the target electronic fence too early, the detected vehicle information does not influence the target vehicle entering the target electronic fence because the target vehicle does not start to enter the target electronic fence; when the intelligent street lamp detects the vehicle information in the target electronic fence later, the risk of vehicle collision may not be avoided when the target vehicle enters the target electronic fence.
Therefore, in the embodiment of the disclosure, the time for detecting the vehicle information in the electronic fence by the intelligent street lamp can be controlled to be consistent with the time for starting the target vehicle to drive into the target electronic fence, and the workload of the intelligent street lamp is reduced as much as possible on the premise of avoiding the collision risk of the target vehicle in the lane changing process.
Specifically, when it is determined that the driving intention of the target vehicle is to drive into the target electronic fence, the intelligent street lamp can further obtain the current position of the target vehicle, compare the current position with the position of the target electronic fence, determine the distance between the current position of the target vehicle and the target electronic fence, and then the intelligent street lamp can detect vehicle information in the target electronic fence at a proper time according to the distance. Wherein the current location of the target vehicle may be determined by a positioning system onboard the vehicle itself, exemplarily: the specific implementation of Positioning via GPS via a Global Positioning System (GPS) of a target vehicle is well known to those skilled in the art and will not be described in detail in the embodiments of the present disclosure.
Since the boundary position of the target electronic fence is the lane line position of the lane to which the target vehicle will drive, the current position of the target vehicle has a plurality of distances from the target electronic fence, a minimum distance of the plurality of distances is determined, and the minimum distance is compared with a first preset distance, wherein the first preset distance is a distance stored in the intelligent street lamp in advance and is determined according to the speed of the vehicle allowed to drive during lane changing, for example: the faster the speed at which the vehicle is allowed to travel during lane change, the larger the first preset distance, and the slower the speed at which the vehicle is allowed to travel during lane change, the smaller the first preset distance.
When the minimum distance is greater than a first preset distance, the representation target vehicle is far away from the target electronic fence, and at the moment, the intelligent street lamp is not required to detect vehicle information in the electronic fence, and when the minimum distance is less than the first preset distance, the representation target vehicle is close to the target electronic fence, and the target vehicle approaches the target electronic fence and will start to drive into the target electronic fence, at the moment, in order to avoid collision with other vehicles in the driving process of the target vehicle, the intelligent street lamp can detect the vehicle information in the target electronic fence.
Therefore, in step S12, when the minimum distance between the current position of the target vehicle and the target electronic fence is less than the first preset distance, it is characterized that the target vehicle is about to enter the target electronic fence, and at this time, the intelligent street lamp acquires vehicle information in the target electronic fence, and determines whether the vehicle information in the target electronic fence meets a preset condition for enabling the target vehicle to enter the target electronic fence safely, where the preset condition is used for characterizing a condition for enabling the target vehicle to enter the target electronic fence safely.
The vehicle information may be a driving speed of the vehicle, a traffic density, and the like, and is not limited in the embodiment of the present disclosure as long as the vehicle information can affect the target vehicle to enter the target electronic fence. The intelligent street lamp can acquire the vehicle information in the target electronic fence through the sensor arranged on the intelligent street lamp, and also can acquire the vehicle information in the target electronic fence through the monitoring device arranged on the intelligent street lamp, and the like.
In step S13, when the vehicle information in the target electronic fence does not satisfy the preset condition, it indicates that the vehicle information in the target electronic fence is not favorable for the target vehicle to safely enter the target electronic fence, and the target vehicle may collide during entering the target electronic fence, at which point the intelligent street lamp may output a first prompt message to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence.
As described above, when a target vehicle passes through the intelligent street lamp, the intelligent street lamp can establish communication connection with the target vehicle, so that when the intelligent street lamp determines that vehicle information in the target electronic fence does not meet a preset condition, first prompt information can be output to the target vehicle, and a driver of the target vehicle can conveniently know that the vehicle is dangerous when driving into the target electronic fence. The first prompt information may be text or picture information displayed by a vehicle-mounted display screen, or information of flickering of light of an indicator lamp in a vehicle-mounted instrument, and the like.
In the method for outputting the prompt information provided by the embodiment of the disclosure, when the driving intention of the target vehicle is to drive into the target electronic fence, the intelligent street lamp acquires the current position of the target vehicle, and when the minimum distance between the current position and the target electronic fence is less than a first preset distance, determines the vehicle information in the target electronic fence, and determines whether the preset condition that the target vehicle drives into the electronic fence is met, that is, according to the vehicle information in the target electronic fence, it is determined whether the target vehicle can safely drive into the target electronic fence, and when the vehicle information in the target electronic fence does not meet the preset condition that the target vehicle drives into the electronic fence, it indicates that the target vehicle may collide when driving into the target electronic fence, so that the intelligent street lamp outputs the prompt information, which is convenient for a driver of the target vehicle to know that driving into the target electronic fence is dangerous at this time, the driver may then stop driving the target vehicle into the target electronic fence to avoid traffic accidents. In addition, the above scheme is that whether the target vehicle can safely drive into the target electronic fence is met or not is objectively judged through the intelligent street lamp, so that the accuracy of the judgment result of whether the target vehicle can safely drive into the target electronic fence or not can be improved, and meanwhile, the intelligence of the street lamp is also improved.
Optionally, when the vehicle information in the target electronic fence meets the preset condition, outputting a second prompt message, to prompt a driver of the target vehicle to drive the target vehicle into the target electronic fence, when the vehicle information in the target electronic fence meets the preset condition, it indicates that the target vehicle is safe to drive into the target electronic fence at the moment, and the vehicles in the target electronic fence do not influence the driving of the target vehicle, that is, in the process that the target vehicle drives into the target electronic fence, the vehicles in the target electronic fence can not collide with the target vehicles, and at the moment, the target vehicles can safely drive into the target electronic fence, therefore, the intelligent street lamp outputs second prompt information, so that a driver of a target vehicle can know that the target vehicle can safely drive into the target electronic fence at the moment, and the driving experience of the driver is improved.
In order to further ensure that the target vehicle can safely enter the target electronic fence, before step S12, it may be further determined whether any vehicle is traveling within a safe distance of the target vehicle, where the safe distance is a preset distance and may be determined according to the traveling speed of the target vehicle, for example: the higher the traveling speed of the target vehicle, the larger the safety distance, and the lower the traveling speed of the target vehicle, the smaller the safety distance.
One possible implementation of determining whether a vehicle is traveling within a safe distance of the target vehicle is: the driver of the target vehicle visually observes to determine whether a vehicle is traveling within a safe distance of the target vehicle, and the lane change may be abandoned when the driver observes that the vehicle is traveling within a safe range.
Another possible implementation is: and determining whether a vehicle runs within the safe distance of the target vehicle through the intelligent street lamp. In this manner, the above-described safe distance needs to be stored in the intelligent street lamp in advance. For example, the intelligent street lamp may detect whether a vehicle is running within a safe distance of the current position of the target vehicle, and when the vehicle is detected to be running, may send a prompt message to the target vehicle to prompt the target vehicle to prohibit a lane change; when the vehicle is not detected to run, prompt information for allowing lane change can be sent to the target vehicle. By adopting the method, the intellectualization of the street lamp can be improved, and the danger of the target vehicle can be further avoided.
It should be noted that, in the embodiment of the present disclosure, the determination of whether there is a vehicle traveling within the safe distance of the target vehicle is not particularly limited.
Optionally, please refer to fig. 2, where fig. 2 is another flowchart of a method for outputting a prompt message according to an embodiment of the present disclosure. As shown in fig. 2, the vehicle information includes a running speed of the vehicle, the preset condition includes that the running speed of the vehicle is less than a preset running speed, and step S12 in fig. 1 specifically includes the following steps:
step S121: when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance, counting other vehicles with the distance between the current position of the target vehicle and the target electronic fence smaller than a second preset distance;
step S122: acquiring the running speed of the other vehicles;
step S123: determining whether the travel speed of the other vehicle is less than the preset travel speed;
accordingly, step S13 specifically includes step S131.
Step S131: and outputting first prompt information when the running speed of the other vehicles is not less than the preset running speed.
In general, in the process of entering the target electronic fence, the vehicles colliding with the target vehicles are mainly vehicles near the target vehicles, and the vehicles far away from the target vehicles do not affect the traveling of the target vehicles, so when the target vehicles are about to enter the target electronic fence, the vehicles near the target vehicles in the electronic fence need to be considered, and the vehicles far away from the target vehicles are not considered due to the low probability of colliding with the target vehicles.
Therefore, in the embodiment of the present disclosure, first, other vehicles whose distance from the current position of the target vehicle is smaller than a second preset distance are counted, and the other vehicles are located in the target electronic fence, where the second preset distance is used to represent a distance that may affect the target vehicle to drive into the target electronic fence, that is, in a process that the target vehicle drives into the target electronic fence, other vehicles whose distance from the current position of the target vehicle is greater than the second preset distance will not collide with the target vehicle, and other vehicles whose distance from the current position of the target vehicle is smaller than the second preset distance will only possibly collide with the target vehicle.
After determining other vehicles whose distance from the current position of the target vehicle is smaller than the second preset distance, if the speed of the other vehicles is faster, the driver may slow down or brake for a longer time, which may cause the target vehicle to collide with other vehicles whose speed is faster in the process of entering the target electronic fence, in this case, it is unsafe for the target vehicle to enter the target electronic fence.
The preset driving speed characterization may be a speed at which the target vehicle can safely drive into the other vehicles in the target electronic fence, and may be a value determined by the traffic manager according to a location where the target electronic fence is located, or a value determined by the traffic manager according to experience, for example: the preset traveling speed set by the traffic manager may be 50km/h if the target electronic fence is located in an urban area, 70km/h if the target electronic fence is located in a suburban area, or 40km/h determined by the manager based on experience, and so on, which is not limited by the embodiments of the present disclosure.
The driving speed of the other vehicle may be acquired by a speed sensor disposed on the intelligent street lamp, or the image acquisition device disposed on the intelligent street lamp is used to capture an image containing the vehicle, and the driving speed of the vehicle in the space is calculated according to the position change of the vehicle on two adjacent frames of images and the time difference between two adjacent frames of images.
After the running speed of the other vehicle is acquired by the method, comparing the running speed of the other vehicle with the preset running speed, and determining whether the running speed of the other vehicle is less than the preset running speed, wherein when the running speed of the other vehicle is less than the preset running speed, the other vehicle in the target electronic fence does not collide with the target electronic fence in the process that the target vehicle runs into the target electronic fence; when the driving speed is not less than the preset driving speed, the speed of other vehicles in the target electronic fence is fast, the vehicles are not easy to decelerate or brake, and the vehicles may collide when entering the target electronic fence, so that the intelligent street lamp outputs prompt information to prompt a driver of the target vehicle to be dangerous when entering the target electronic fence.
In the embodiment of the disclosure, considering that when a target vehicle enters a target electronic fence, a vehicle colliding with the target vehicle is mainly a vehicle located nearby, determining other vehicles close to the target vehicle, and considering that when the driving speed of the vehicle in the target electronic fence is too high, deceleration or braking is not facilitated, and further collision with the target vehicle is easily caused, further obtaining the driving speed of other vehicles to judge whether the driving speed is less than a preset driving speed, when the driving speed is not less than the preset driving speed, it is indicated that the speed of other vehicles in the target electronic fence is higher, and deceleration or braking is not facilitated, and collision may occur during the process that the target vehicle enters the target electronic fence, at this time, the intelligent street lamp outputs prompt information to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence, therefore, the target vehicle can be prevented from colliding with other vehicles when entering the target electronic fence, and the intelligence of the street lamp is improved.
Optionally, please refer to fig. 3, where fig. 3 is another flowchart of a method for outputting a prompt message according to an embodiment of the disclosure. As shown in fig. 3, the vehicle information includes traffic density, the preset condition includes that the traffic density is smaller than a preset traffic density, and step S12 in fig. 1 specifically includes the following steps:
step S124: when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance, acquiring the traffic flow density in the target electronic fence within a preset time period;
step S125: determining whether the traffic density in the target electronic fence is smaller than the preset traffic density;
accordingly, step S13 specifically includes step S132.
Step S132: and outputting first prompt information when the traffic flow density is not less than the preset traffic flow density.
Considering that the larger the traffic density in the target electronic fence, the less likely the target vehicle will enter the target electronic fence, or the greater the probability of collision with other vehicles during entering the target electronic fence, in the embodiment of the present disclosure, the vehicle state may include the traffic density.
As mentioned above, the vehicles in the target electronic fence are in a driving state, and the position of each vehicle is changed at different times, so that the traffic density in the target electronic fence is different at different times, for example, between 7:00 and 8:00 in the morning, due to a peak working hour, the traffic density in the target electronic fence is high, if the traffic density in the target electronic fence is between 10:00 and 11:00 in the morning, the traffic density in the target electronic fence is low, if the time of the traffic density acquired by the intelligent street lamp is not consistent with the time of the target vehicle driving into the target electronic fence, an erroneous prompt message may be output, so that the traffic density in the target electronic fence needs to be acquired within a preset time period, wherein the preset time period may be 15s, 30s, 1min, and the like, the starting time may be the time when the minimum distance between the position of the target vehicle and the target electronic fence is equal to the first preset distance, so as to ensure that the time of the acquired traffic density is consistent with the time of the target vehicle driving into the target electronic fence.
The preset traffic density may be a value determined by the traffic manager according to the location of the target electronic fence, or may be a value determined by the traffic manager according to experience, for example: the preset traffic density is determined to be 20 vehicles/km if the target electronic fence is located in an urban area, and is determined to be 30 vehicles/km if the target electronic fence is located in a suburban area, or the preset traveling speed is determined to be 20 vehicles/km by an administrator based on experience, and so on, considering that there is a possibility that a pedestrian may appear in the target electronic fence.
In the embodiment of the present disclosure, the traffic flow density in the preset time period may be acquired and obtained through a sensor arranged on the intelligent street lamp, or an image including a vehicle is captured through an image acquisition device arranged on the intelligent street lamp, and the traffic flow density in the preset time period in the actual space is obtained from the image, and the like, which is not limited in the embodiment of the present disclosure as long as the traffic flow density can be determined.
After the traffic flow density is obtained by the method, comparing the traffic flow density with a preset traffic flow density to determine whether the traffic flow density is smaller than the preset traffic flow density, wherein when the traffic flow density is smaller than the preset traffic flow density, the number of vehicles in the target electronic fence is small and the probability of collision between the target vehicle and other vehicles is small in the process that the target vehicle drives into the target electronic fence; when the current density is not less than the preset current density, the number of vehicles in the target electronic fence is large, and the target vehicles are easy to collide with other vehicles in the process that the target vehicles drive into the target electronic fence.
Considering that when the number of vehicles in the electronic fence is large, the target vehicle is likely to collide with other vehicles during the process of entering the target electronic fence, in the embodiment of the present disclosure, when the vehicle density is greater than the preset vehicle density, it is indicated that the target vehicle is likely to collide with other vehicles during the process of entering the target electronic fence, and at this time, a prompt message is output to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence, so that the target vehicle can be prevented from colliding with other vehicles, and in addition, since the street lamps are widely distributed on both sides of the road, the vehicle density information obtained through the street lamps is more comprehensive, so that the target vehicle can be further prevented from colliding with other vehicles during the process of entering the target electronic fence, the intelligence of street lamp has also been improved to a certain extent.
Optionally, after the first prompt message is output when the driving state of the other vehicle does not satisfy the preset condition, the intelligent street lamp may further limit the driving of the target vehicle to prohibit the target vehicle from entering the range of the target electronic fence.
After the intelligent street lamp determines that the target vehicle is dangerous when entering the target electronic fence, the intelligent street lamp can output prompt information to remind a driver of the target vehicle of prohibiting the target vehicle from entering the target electronic fence, and can also send a control instruction to the target vehicle to restrict the target vehicle from traveling, specifically, the rotation direction of a steering wheel of the target vehicle can be restricted, or the engine speed of the target vehicle can be restricted, and the target vehicle is prohibited from entering the target electronic fence.
Based on the same inventive concept, the embodiment of the present disclosure further provides a device for outputting prompt information, and fig. 4 is a block diagram of the device for outputting prompt information provided by the embodiment of the present disclosure. As shown in fig. 4, the device 400 for outputting prompt information provided by the embodiment of the present disclosure is applied to an intelligent street lamp, and includes:
the first obtaining module 401 is configured to obtain a current position of a target vehicle when it is detected that a driving intention of the target vehicle passing below the intelligent street lamp is to enter a target electronic fence, where the target electronic fence is a lane into which the target vehicle is to enter;
a first determining module 402, configured to determine whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence when a minimum distance between a current location of the target vehicle and the target electronic fence is smaller than a first preset distance;
a first output module 403, configured to output first prompt information to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence when the vehicle information in the target electronic fence does not satisfy the preset condition.
Optionally, the apparatus further comprises:
and the second output module is used for outputting second prompt information when the vehicle information in the target electronic fence meets the preset condition so as to prompt a driver of the target vehicle to drive the target vehicle into the target electronic fence.
Optionally, the vehicle information includes a running speed of the vehicle, the preset condition includes that the running speed of the vehicle is less than a preset running speed, and the first determining module includes:
the counting submodule is used for counting other vehicles, the distance between the other vehicles and the current position of the target vehicle is smaller than a second preset distance, wherein the other vehicles are vehicles positioned in the target electronic fence;
the first obtaining submodule is used for obtaining the running speed of the other vehicles;
a first determination submodule for determining whether the travel speed of the other vehicle is less than the preset travel speed.
Optionally, the vehicle information includes traffic density, the preset condition includes that the traffic density is smaller than a preset traffic density, and the first determining module includes:
the second acquisition submodule is used for acquiring the traffic density in the target electronic fence in a preset time period;
and the second determining submodule is used for determining whether the traffic density in the target electronic fence is smaller than the preset traffic density.
Optionally, the apparatus further comprises:
the second acquisition module is used for acquiring a running route of the target vehicle passing through the lower part of the intelligent street lamp in a preset time period;
and the second determination module is used for determining that the driving intention of the target vehicle is the driving intention into the target electronic fence when the driving route is close to the position of the target electronic fence.
Optionally, after the first prompt information is output when the driving state of the other vehicle does not satisfy the preset condition, the apparatus further includes:
and the limiting module is used for limiting the running of the target vehicle so as to prohibit the target vehicle from entering the range of the target electronic fence.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Based on the same inventive concept, the embodiment of the disclosure also provides an intelligent street lamp. Fig. 5 is a schematic view of an intelligent street lamp provided by the embodiment of the disclosure. As shown in fig. 5, an intelligent street lamp 500 provided by the embodiment of the present disclosure includes: light source 501, heat sink 502, processor 503, and memory 504.
The heat dissipation assembly 502 comprises heat-conducting silicone grease, a processor 503, a memory 504 and a light source 501 are arranged above the heat dissipation assembly 502, and the processor 503 is connected with the memory 504 and the light source 501 respectively. The memory 504 is used to store computer program instructions that, when executed by the processor 503, implement a method of outputting hint information as provided by embodiments of the present disclosure.
Because the processor 503, the memory 504 and the light source 501 are arranged above the heat dissipation component 502 in the intelligent street lamp 500, other components (such as the processor 503, the memory 504 and the light source 501) in the intelligent street lamp 500 can be well dissipated through the heat dissipation component 502, and it is ensured as far as possible that the other components are not too hot due to poor heat dissipation, so that the intelligent street lamp 500 cannot implement the method for outputting the prompt information provided by the embodiment of the disclosure, and the intelligence of the intelligent street lamp 500 is ensured as far as possible.
Optionally, the heat-conducting silicone grease included in the heat dissipation assembly 502 is prepared from a specific composition, where the specific composition includes silicone oil, a first filler, a second filler, and optionally an auxiliary agent, and based on 100 parts by weight of the silicone oil, the content of the first filler is 10 to 60 parts by weight, the content of the second filler is 50 to 150 parts by weight, and the content of the auxiliary agent is 0 to 20 parts by weight; the first filler comprises a metal heat conductor and a phase-change material, and the weight ratio of the metal heat conductor to the phase-change material is 1: (0.2 to 2.5); the second filler comprises carbon nanotubes and graphene, and the weight ratio of the carbon nanotubes to the graphene is 1: (1-20).
Preferably, the content of the first filler is 20 to 40 parts by weight, the content of the second filler is 80 to 120 parts by weight, and the content of the auxiliary agent is 0 to 10 parts by weight, based on 100 parts by weight of the silicone oil;
further preferably, R is 6.5 to 35.5 as calculated by the following formula:
r ═ 0.656w (second filler) -1.581w (first filler) +0.11w (adjuvant),
wherein w (first filler) represents parts by weight of the first filler relative to 100 parts by weight of the silicone oil,
w (second filler) represents parts by weight of the second filler relative to 100 parts by weight of the silicone oil,
w (adjuvant) represents the parts by weight of adjuvant with respect to 100 parts by weight of silicone oil.
The heat-conducting silicone grease composition adopts the metal heat conductor and the phase-change material as the first filler, and compared with the traditional heat-conducting silicone grease which only adopts the metal heat conductor as the filler, the heat-conducting silicone grease composition can effectively improve the absorption rate of heat of a heat source and has the effects of quickly absorbing heat and transferring heat; meanwhile, the carbon nano tube and the graphene are used as second fillers, so that the heat conductivity coefficient is greatly improved, the compatibility with silicone oil is facilitated, and the quality and the performance of the specific composition are further improved.
The heat-conducting silicone grease prepared from the composition can effectively improve the heat-conducting and heat-radiating efficiency of the heat-radiating component 502. Due to the improvement of the heat dissipation efficiency, a good heat dissipation effect can be achieved by adopting the heat dissipation assembly 502 with a smaller volume, so that more space can be saved, the light source 501, the processor 503, the memory 504 and other assemblies can be conveniently placed, and the overall volume of the intelligent street lamp 500 is reduced. Especially when carrying out intelligent transformation to current street lamp, less volume intelligent street lamp 500 can be installed in current old street lamp body, and need not to change whole street lamp holders, and the transformation cost is lower, efficiency is higher.
Based on the same inventive concept, the disclosed embodiments also provide a computer-readable storage medium, on which computer program instructions are stored, which when executed by a processor implement the steps of the method for outputting prompt information provided by the disclosed embodiments. For example, the computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A method for outputting prompt information is applied to an intelligent street lamp, and comprises the following steps:
acquiring a running route of a target vehicle below the intelligent street lamp, and determining a running intention of the target vehicle according to the running route;
when detecting that a driving intention of a target vehicle passing below the intelligent street lamp is to drive into a target electronic fence, acquiring the current position of the target vehicle, wherein the target electronic fence is a lane to which the target vehicle is to drive;
when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance, determining whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence;
and when the vehicle information in the target electronic fence does not meet the preset condition, outputting first prompt information to prompt a driver of the target vehicle to prohibit the target vehicle from driving into the target electronic fence.
2. The method of claim 1, further comprising:
and outputting second prompt information to prompt a driver of the target vehicle to drive the target vehicle into the target electronic fence when the vehicle information in the target electronic fence meets the preset condition.
3. The method of claim 1, wherein the vehicle information comprises a traveling speed of a vehicle, the preset condition comprises that the traveling speed of the vehicle is less than a preset traveling speed, and the determining whether the vehicle information in the target electronic fence meets the preset condition that the target vehicle travels into the target electronic fence comprises:
counting other vehicles with the distance to the current position of the target vehicle being smaller than a second preset distance, wherein the other vehicles are vehicles located in the target electronic fence;
acquiring the running speed of the other vehicles;
determining whether the travel speed of the other vehicle is less than the preset travel speed.
4. The method of claim 1, wherein the vehicle information comprises traffic density, the preset condition comprises that the traffic density is smaller than a preset traffic density, and the determining whether the vehicle information in the target electronic fence meets the preset condition that the target vehicle enters the target electronic fence comprises:
acquiring the traffic density in the target electronic fence within a preset time period;
and determining whether the traffic density in the target electronic fence is less than the preset traffic density.
5. The method of claim 1, further comprising:
acquiring a running route of the target vehicle passing below the intelligent street lamp within a preset time period;
when the driving route is close to the position of the target electronic fence, determining that the driving intention of the target vehicle is to enter the target electronic fence.
6. The method according to claim 3, characterized in that after outputting the first prompt information when the running state of the other vehicle does not satisfy the preset condition, the method further comprises:
and limiting the target vehicle to run so as to prohibit the target vehicle from running into the range of the target electronic fence.
7. The utility model provides an output prompt information's device which characterized in that is applied to intelligent street lamp, the device includes:
the first acquisition module is used for acquiring a running route of a target vehicle below the intelligent street lamp and determining a running intention of the target vehicle according to the running route; when detecting that a driving intention of a target vehicle passing below the intelligent street lamp is to drive into a target electronic fence, acquiring the current position of the target vehicle, wherein the target electronic fence is a lane to which the target vehicle is to drive;
the first determining module is used for determining whether vehicle information in the target electronic fence meets a preset condition that the target vehicle enters the target electronic fence or not when the minimum distance between the current position of the target vehicle and the target electronic fence is smaller than a first preset distance;
and the first output module is used for outputting first prompt information when the vehicle information in the target electronic fence does not meet the preset condition so as to prompt a driver of the target vehicle to prohibit the target vehicle from entering the target electronic fence.
8. An intelligent street lamp, comprising: the device comprises a light source, a heat dissipation assembly, a processor and a memory;
the heat dissipation assembly comprises heat-conducting silicone grease, the processor, the memory and the light source are arranged above the heat dissipation assembly, and the processor is connected with the memory and the light source respectively;
the memory for storing computer program instructions which, when executed by the processor, implement the method of any one of claims 1-6.
9. The intelligent street lamp according to claim 8, wherein the heat-conducting silicone grease is prepared from a specific composition, the specific composition comprises silicone oil, a first filler, a second filler and optional auxiliaries, based on 100 parts by weight of the silicone oil, the content of the first filler is 10-60 parts by weight, the content of the second filler is 50-150 parts by weight, and the content of the auxiliaries is 0-20 parts by weight; the first filler comprises a metal heat conductor and a phase-change material, and the weight ratio of the metal heat conductor to the phase-change material is 1: (0.2 to 2.5); the second filler comprises carbon nanotubes and graphene, and the weight ratio of the carbon nanotubes to the graphene is 1: (1-20).
10. A computer-readable storage medium, on which computer program instructions are stored, which program instructions, when executed by a processor, carry out the steps of the method according to any one of claims 1 to 6.
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| CN112235712B (en) * | 2020-09-03 | 2022-12-13 | 浙江吉利汽车研究院有限公司 | Vehicle driving early warning method, system, device and equipment |
| CN112634108A (en) * | 2020-11-23 | 2021-04-09 | 中国人民解放军战略支援部队信息工程大学 | Scenic spot energy saving and consumption reduction control method based on location service |
| CN113838284B (en) * | 2021-09-15 | 2023-01-06 | 北京中交兴路车联网科技有限公司 | Vehicle early warning method and device on accident-prone road section, storage medium and terminal |
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