CN211928753U - Intelligent road parking equipment and system based on millimeter wave radar detection - Google Patents
Intelligent road parking equipment and system based on millimeter wave radar detection Download PDFInfo
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- CN211928753U CN211928753U CN202020517168.0U CN202020517168U CN211928753U CN 211928753 U CN211928753 U CN 211928753U CN 202020517168 U CN202020517168 U CN 202020517168U CN 211928753 U CN211928753 U CN 211928753U
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Abstract
The invention discloses a road intelligent parking device and system based on millimeter wave radar detection. The apparatus comprises: the system comprises a radar module, a camera, a communication module and a pile body, wherein the radar module is used for detecting the state of a road parking space, and respectively triggers the camera to shoot a vehicle when the radar module detects that the vehicle enters, the vehicle is stable and the vehicle is separated, so as to collect the image data of the license plate number of the vehicle, and simultaneously, the radar module records the absolute time of triggering shooting; and the communication module uploads the license plate number image data and the absolute time for triggering photographing. The invention greatly reduces the cost of the pile body and the aesthetic property of public roads, can well capture the motion behavior of the vehicle body, can discriminate vehicles which pass through the parking spaces and do not occupy the parking spaces, can distinguish bicycles and pedestrians according to the point cloud, can greatly improve the effective order rate, really realizes intelligence and reduces the operation pressure of the server.
Description
Technical Field
The invention belongs to the technical field of intelligent equipment, and particularly relates to road intelligent parking equipment and a system based on millimeter wave radar detection.
Background
Aiming at the current situation of road parking in China, the intelligent road parking system mainly faces the problems of difficult parking, low efficiency of manual management, high labor cost, nonstandard parking, lack of informatization and the like, so that the intelligent road parking system for realizing automatic charging is an excellent solution for solving the problems and is one of important measures for developing smart cities in the future.
The most key technical link of the intelligent parking system is that the parking action of the vehicle, including the driving-in, stable parking and driving-out of the vehicle, can be automatically and accurately identified/judged in a specific parking area, and then the parking space state information is transmitted to a next-level system for further cooperative processing, and finally a parking space order is generated.
At present, the intelligent road parking system at home and abroad is completely open at the head, but is not used in a large range, and has the defects and the shortcomings. Some techniques for vehicle parking action recognition are listed below:
the infrared detection technology comprises the following steps: at present, the system is put into use abroad, but only simple target entry reminding and then manual intervention charging can be realized, and a series of parking actions of the vehicle cannot be judged;
the ultrasonic radar technology comprises the following steps: the existing merchant adopts an ultrasonic radar for testing, but the detection distance and the detection angle of ultrasonic waves are very small, the detection range is very limited, and the false triggering rate is very high;
the wireless geomagnetic induction technology comprises the following steps: the investment is large in the early stage, and the installation mode has great damage to the road; the system is easily interfered by magnetic objects (such as high-voltage wires), and vehicles, electric vehicles and the like which pass through but do not occupy parking spaces are not filtered, so that the false triggering rate is high;
fourthly, pure vision technology: the identification and judgment accuracy of the video pile system is relatively high, but the following problems exist: 1) for roadside parking scenes, due to weather (rain, snow, fog, night, and the like) and complexity of parking modes of users, higher requirements are put on an automatic identification system, and the parking mode cannot be finished well only by vision; 2) the data power consumption is large, video data of more than ten megabytes are continuously uploaded to the cloud end by video streams, and the operation burden of a server is greatly increased; 3) the cost is very high.
Disclosure of Invention
The technical problems solved by the invention are as follows: provided are a road intelligent parking device and system based on millimeter wave radar detection.
The technical scheme is as follows: in order to solve the technical problems, the technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a road intelligent parking device based on millimeter wave radar detection, comprising:
the radar module is used for detecting the state of a road parking space;
the camera is connected with the radar module through a camera driving circuit, and is triggered to shoot a vehicle when the radar module detects that the state of a road parking space changes so as to collect image data of the license plate number of the vehicle, and meanwhile, the radar module records the absolute time of triggering shooting;
the communication module is connected with the radar module and used for uploading the license plate number image data and the absolute time for triggering photographing to a server so that the server generates parking order information according to the license plate number and the absolute time for triggering photographing, and the server sends the parking order information to a mobile client to finish fee deduction operation;
the pile body is used for fixing the radar module and the camera on one side of the parking space far away from the center of the road.
Further, the pile body sets up between two adjacent parking stalls, and its upper side is equipped with two cameras, and two cameras are used for shooing the vehicle of one of them parking stall respectively, the radar module is the millimeter wave radar module.
Further, still include the light filling lamp, the light filling lamp sets up on the pile body, and it is connected with the radar module through light filling lamp drive circuit.
Further, still include status indicator lamp, status indicator lamp sets up on the pile body, and it is connected with the radar module through status indicator lamp drive circuit.
Further, camera drive circuit includes resistance R64 that one end and radar module are connected, resistance R64's the other end is connected with triode Q11's base, triode Q11's projecting pole ground connection, and be connected with resistance R66 between its base and the projecting pole, triode Q11's collecting electrode and resistance R44's one end and MOS pipe's grid are connected, resistance R44's the other end and the source electrode of MOS pipe are connected with the power positive pole respectively, the drain electrode and the camera of MOS pipe are connected.
Further, light filling lamp drive circuit includes MOS pipe Q4 that drain electrode and light filling lamp negative pole are connected, MOS pipe Q4's grid is connected with resistance R4 and resistance R48's one end, resistance R4's the other end and MOS pipe Q4's source electrode all ground connection, resistance R48's the other end is connected with the radar module.
Further, the status indicator lamp driving circuit comprises a MOS tube Q1 with a drain connected with a cathode of the status indicator lamp, a gate of the MOS tube Q1 is connected with one end of a resistor R1 and one end of a resistor R45 respectively, the other end of the resistor R1 and a source of the MOS tube Q1 are both grounded, and the other end of the resistor R45 is connected with the radar module.
Further, the millimeter wave radar module comprises a millimeter wave radar module, a processor and a radar antenna, the processor and the radar antenna are connected with the millimeter wave radar module, the processor is connected with the camera, a gigabit Ethernet module is connected between the processor and the communication module, and the millimeter wave radar module and the processor are connected with a power supply module.
In a second aspect, the invention provides a road intelligent parking system based on millimeter wave radar detection, which comprises a server and a mobile client connected with the server, and further comprises the equipment, wherein the server receives license plate number image data of a vehicle uploaded by the equipment and absolute time for triggering photographing, analyzes the license plate number of the vehicle based on an image recognition technology, generates parking order information according to the license plate number and the absolute time for triggering photographing after the vehicle leaves, and sends the parking order information to the corresponding mobile client, and the mobile client finishes fee deduction operation according to the parking order information.
The parking space charging system further comprises a manual calling module, the manual calling module is connected with the server, and when the radar module detects that the parking space is occupied but the server cannot acquire the license plate number of the vehicle, the server triggers the manual calling module to work so as to carry out manual charging.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. under special weather such as heavy fog weather, night and the like, the license plate is difficult to even cannot be recognized by vision, and the millimeter wave radar has excellent penetrability and is not limited by climate and the like;
2. the detection angle of the millimeter wave angle radar can reach 150 degrees, one pile body only needs to be carried with one angle radar to cover the monitoring of two parking spaces while the large detection range is ensured, and the cost of the pile body and the attractiveness of public roads are greatly reduced;
3. due to the diversity and complexity of the roadside parking mode, such as side parking, vehicle head parking, linear driving and the like, the millimeter wave radar can well capture the movement behavior of the vehicle body by detecting the vehicle at a large angle of 150 degrees;
4. compared with the ultrasonic wave or wireless geomagnetic induction technology, the millimeter wave radar increases the judgment of the driving in/stopping/driving out of the vehicle, can discriminate the vehicle which only passes through the unoccupied parking space, can distinguish the bicycle and the pedestrian according to the point cloud, can greatly improve the effective order rate, and really realizes the intelligence;
5. the millimeter wave radar occupies only 3W of power consumption, only a plurality of 10K-level state photos of a vehicle entering/stopping/leaving are uploaded to the server, and the photos of the vehicle passing through the server without actually occupying parking spaces are not uploaded, so that the data power consumption is greatly reduced, and the operation pressure of the cloud server is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a road intelligent parking device based on millimeter wave radar detection;
FIG. 2 is a schematic block diagram of a road intelligent parking device based on millimeter wave radar detection;
FIG. 3 is a wiring diagram of a processor of an embodiment of the invention;
fig. 4 is a schematic structural diagram of a camera driving circuit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a gigabit ethernet module according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fill-in lamp driving circuit according to an embodiment of the invention;
FIG. 7 is a schematic diagram of a status indicator light driver circuit according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a road intelligent parking system based on millimeter wave radar detection;
FIG. 9 is a flow chart of a parking space state identification method based on millimeter wave radar;
fig. 10 is a schematic diagram of a method of a parking space state identification method based on a millimeter wave radar.
Detailed Description
The present invention will be further illustrated by the following specific examples, which are carried out on the premise of the technical scheme of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 7, an embodiment of the present invention provides a method for identifying a parking space state on a road based on a millimeter wave radar, including a radar module 1, a camera 2, and a communication module 3. The radar module 1 is used for detecting the state of a road parking space, wherein the state of the road parking space comprises idle state, vehicle driving-in state, vehicle stopping state and vehicle driving-out state.
The camera 2 is connected with the radar module 1 through the camera driving circuit 4, and when the radar module 1 detects that a vehicle enters, is stopped and separated, the camera is controlled to photograph the vehicle respectively so as to collect the image data of the license plate number of the vehicle. Meanwhile, when the radar module 1 detects that the vehicle enters, stops stably and leaves, the absolute time for triggering photographing is recorded according to the internal clock. And the communication module 3 is connected with the radar module 1 and used for uploading the image data of the license plate number and the absolute time for triggering the photographing to the server so as to provide data support for generating a parking order, the server generates parking order information according to the license plate number and the absolute time for triggering the photographing, and the server sends the parking order information to the mobile client to finish fee deduction operation.
As shown in fig. 1, the embodiment of the present invention further includes a pile 5, where the pile 5 is used to fix the radar module 1 and the camera 2 on a side of the parking space away from the center of the road, so that the radar module 1 and the camera 2 can complete corresponding functions.
As shown in fig. 1 and 2, the radar system further includes a light supplement lamp 6, the light supplement lamp 6 is disposed on the pile body 5, and the light supplement lamp 6 is connected to the radar module 1 through a light supplement lamp driving circuit 7. When taking a picture, the radar module 1 controls the light supplement lamp 6 to work so as to perform light compensation.
As shown in fig. 1 and 2, the embodiment of the present invention further includes a status indicator light 8, and the status indicator light 8 is disposed on the pile body 5 and is connected to the radar module 1 through a status indicator light driving circuit 9. When radar module 1 detected the parking stall for the steady state, the parking stall was occupied promptly, and the status light is bright red, and other status positions are all bright green.
As shown in fig. 4, the camera driving circuit 4 according to the embodiment of the present invention includes a resistor R64 having one end connected to the radar module 1, the other end of the resistor R64 is connected to the base of a transistor Q11, the emitter of the transistor Q11 is grounded, a resistor R66 is connected between the base and the emitter, the collector of the transistor Q11 is connected to one end of a resistor R44 and the gate of the MOS transistor, the other end of the resistor R44 and the source of the MOS transistor are respectively connected to the positive electrode of the power supply, and the drain of the MOS transistor is connected to the camera. In the embodiment in which two cameras 2 are provided on each of the piles 5, the camera drive circuits 4 of the same circuit configuration are used.
As shown in fig. 6, the light supplement lamp driving circuit 7 according to the embodiment of the present invention includes a MOS transistor Q4 having a drain connected to a negative electrode of the light supplement lamp 6, a positive electrode of the light supplement lamp 6 is connected to a positive electrode of a power supply, a gate of the MOS transistor Q4 is connected to one end of a resistor R4 and one end of a resistor R48, the other end of the resistor R4 and a source of the MOS transistor Q4 are both grounded, and the other end of the resistor R48 is connected to the radar module. In the embodiment that two cameras 2 are arranged on each pile body 5, two light supplement lamps 6 are correspondingly adopted, and the circuit structures of the two light supplement lamp driving circuits 7 are the same.
As shown in fig. 7, the status indicator lamp driving circuit 9 according to the embodiment of the present invention includes a MOS transistor Q1 having a drain connected to a negative electrode of the status indicator lamp 8, a positive electrode of the status indicator lamp 8 is connected to a positive electrode of a power supply, a gate of the MOS transistor Q1 is connected to one end of a resistor R1 and one end of a resistor R45, the other end of the resistor R1 and a source of the MOS transistor Q1 are both grounded, and the other end of the resistor R45 is connected to the radar module. The structure of the driving circuit of the red light is the same as that of the driving circuit of the green light, in the embodiment that two cameras 2 are arranged on each pile body 5, two groups of status indicator lights 8 are correspondingly adopted, and the circuit structures of the two groups of status indicator light driving circuits 9 are also the same.
As shown in fig. 2, the radar module 1 according to the embodiment of the present invention includes a millimeter wave radar module 11, a processor 12 connected to the millimeter wave radar module 11, and a radar antenna 13, wherein the operating frequency of the millimeter wave radar module 11 is preferably above 60GHZ, and may be a model such as S102. The radar antenna 13 comprises a transmitting antenna and a receiving antenna, and the processor 12 is respectively connected with the camera 2, the light supplement lamp 6 and the status indicator lamp 7. The communication module 3 is preferably a 4G wireless module, and a gigabit ethernet module 14 is connected between the processor 12 and the communication module 3. The embodiment of the invention further comprises a power supply 10, wherein the power supply 10 outputs DC12V voltage, the power supply 10 is respectively connected with the millimeter wave radar module 11 and the processor 12 through a power supply module 15, the power supply module 15 converts the input DC12V into DC5V and DC3V voltage in sequence, and then supplies power to the millimeter wave radar module 11 and the processor 12. A battery may also be provided as a backup power source.
As shown in fig. 8, based on the above embodiments, those skilled in the art can understand that the present invention further provides an intelligent road parking system based on high-frequency millimeter wave radar detection, the system includes a server, a mobile client connected to the server, and the above intelligent parking device, the server receives image data of a license plate number of a vehicle sent by the parking device and absolute time of triggering photographing, and analyzes the license plate number of the vehicle from the image data of the license plate number based on an image recognition technology, the server generates parking order information according to the license plate number and the absolute time of triggering photographing, specifically, after the vehicle is driven into a parking stable state, the server can obtain the time of the vehicle being stable and the license plate number of the vehicle through the radar module 1 and the camera 2, and then the server can create a parking order according to the license plate number of the vehicle and the time of the vehicle being stable, when the vehicle drives away, the server can acquire the license plate number of the driven vehicle and the driving away time through the radar module 1 and the camera 2, so that the server can automatically complete order information according to the license plate number, the parking time and the driving away time, and then sends the parking order information to the corresponding mobile client side, and automatic charging is achieved. The server generates effective order information only when closed-loop logic of vehicle driving-in, vehicle stable-off and vehicle driving-off is met, and if the closed-loop logic of vehicle driving-in and vehicle stable-off and the closed-loop logic of vehicle driving-off are not stable, the server judges that the vehicle is only passed through and does not generate effective order information.
In order to deal with the situation that a few uploaded photos cannot identify license plates, but the radar module 1 judges that the parking space is occupied, the embodiment of the invention further comprises a manual calling module, wherein the manual calling module is connected with the server, and when the radar module 1 detects that the parking space is occupied but the server cannot acquire the license plate number of the vehicle, the server triggers the manual calling module to work so as to call related workers to carry out manual charging and avoid ticket leakage.
With reference to fig. 9 and fig. 10, based on the above embodiments, those skilled in the art can understand that in another aspect of the present invention, a method for identifying a parking space status of a road based on a millimeter wave radar is further provided, including: the radar module is adopted to transmit and receive returned probe waves, the returned probe waves are processed through digital signals to obtain a radial velocity vector Vi (velocity vector between a point trace and the radar direction), a distance rho i (linear distance between the point trace and the radar), an angle theta i (included angle between the point trace and the radar normal) and a point trace (target) with signal-to-noise ratio snri information under a coordinate system with the radar as an origin, and the point traces are condensed into a target (object) and tracked. The clustering method of the target is to obtain the center point Z of the scattered point trace by a signal-to-noise ratio weighting methodcenterI.e. the target. The specific calculation method is as follows:
defining the scattered point trace as Z, then:
Z＝{ρi，θi，Vi，snri}i＝1，2...n
the current target central point Z can be obtained by weighting the signal-to-noise ratiocenterComprises the following steps:
Zcenter＝{ρmean，θmean，Vmean，snrmean}
wherein the traces are condensed into a target (center point Z)center) Distance rho to radar modulemeanComprises the following steps:
target formed by condensed traces (center point Z)center) The angle between the normal line of the radar module and the normal line is thetameanComprises the following steps:
target formed by condensed traces (center point Z)center) Radial velocity vector V ofmeanComprises the following steps:
target formed by condensed traces (center point Z)center) Snr snmeanComprises the following steps:
according to the target formed by the condensation of the traces (central point Z)center) Distance rho to radar modulemeanAnd angle thetamean(included angle between central point and radar normal) calculating target longitudinal distance YL, wherein YL is calculated in the following mode:
YL＝ρmean*cosθmean
according to the target longitudinal distance YL and the target radial velocity vector VmeanAnd screening out suspected parked vehicles. And filtering neglect for the determined vehicle in the motor lane. The suspected parked vehicles are screened as follows: when the target longitudinal distance YL is larger than a set longitudinal distance threshold value, judging that the vehicle is a motor lane vehicle and filtering; and when the longitudinal distance of the target is smaller than the set longitudinal distance threshold value, the target is judged to be a suspected parked vehicle. For the suspected parking vehicle of the preliminary judgment position according to the target radial velocity vector VmeanFurther screening, when the absolute value | V of the radial velocity of the targetmeanIf the absolute value | is larger than the set absolute value threshold of the radial speed, the vehicle in the motor lane is judged and filtered, and when the absolute value | V of the target radial speedmeanAnd if the absolute value of the radial speed is less than the set absolute value threshold value, the target is judged as a suspected parking vehicle. The width of a common road parking space is 2.2-2.4 meters, a longitudinal distance threshold value can be set to be about 2.3 meters, an absolute value of a set radial velocity vector threshold value can be 1-10 m/s, and suspected parked vehicles and vehicles in a motor lane can be effectively distinguished.
Calculating a trace point distance variance D of the suspected parked vehicle target, wherein the calculation mode of the distance variance D is as follows:
in the above formula, ρ1、ρ2、ρnRepresents ρiThe distance from different points to the radar module, n is an integer, wherein,
and judging whether the suspected parking vehicle is a motor parking vehicle or not according to the trace point distance variance D of the suspected parking vehicle. The motor-driven parking vehicle is judged in the following manner: and if the trace distance variance D is smaller than the set trace distance variance threshold, judging the suspected parked vehicle as a non-motor vehicle, and filtering and ignoring the non-motor vehicle. And if the trace distance variance D is larger than the set trace distance variance threshold value, judging the suspected parked vehicle as the parked vehicle. The set trace distance variance threshold may be between 0.1 and 2, from which a preferred value may be selected. The step can effectively distinguish the motor vehicles from the non-motor vehicles (such as pedestrians, bicycles, electric vehicles and the like) and avoid the interference caused by the non-motor vehicles.
If it is determined to be a parked vehicle, the radial velocity vector V is determined based on the target radial velocity vectormeanAnd judging the parking space state by the longitudinal distance YL. The parking space state judgment mode is as follows: if the target radial velocity vector VmeanIf the parking space is a negative value, namely the parking vehicle moves towards the radar module in the radial direction, the state of the parking space is judged that the vehicle enters; if the target radial velocity vector VmeanAnd when the number of the continuous stable frames is 0 and the number of the continuous stable frames is larger than the set threshold value of the number of the stable frames, the parking space state is judged as the vehicle stable state. If the vehicle is monitored to move when the continuous stable frame number is less than the set stable frame number threshold value, the vehicle radial velocity vector V ismeanWhen it is again 0, the count is again counted. If the target radial velocity vector VmeanIf the value is positive, namely the parked vehicle moves away from the radar module in the radial direction, the parked vehicle is judged to be driven away; if the target radial velocity vector VmeanWhen the direction of the vehicle is positive and negative, if the target longitudinal distance YL is in a decreasing trend, the state of the parking space is judged that the vehicle enters, and if the target longitudinal distance YL is in an increasing trend, the state of the parking space is judged that the vehicle leaves; and counting empty spaces after the vehicle leaves, and if the number of the continuous stable frames of the empty spaces is greater than the set idle frame number threshold, judging the state of the empty spaces to be idle. The threshold of the number of the stationary frames and the threshold of the number of the idle frames need to be set according to the refresh cycle of the radar module, taking the refresh cycle of the radar module as 50 milliseconds as an example, the threshold of the number of the stationary frames and the threshold of the number of the idle frames can be set at about 200, and thus, the time corresponding to the threshold of the number of the stationary frames and the threshold of the number of the idle frames is about 10 seconds.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a road intelligence parking equipment based on millimeter wave radar is surveyed which characterized in that includes:
the radar module is used for detecting the state of a road parking space;
the camera is connected with the radar module through a camera driving circuit, and is triggered to shoot a vehicle when the radar module detects that the state of a road parking space changes so as to collect image data of the license plate number of the vehicle, and meanwhile, the radar module records the absolute time of triggering shooting;
the communication module is connected with the radar module and used for uploading the license plate number image data and the absolute time for triggering photographing to a server so that the server generates parking order information according to the license plate number and the absolute time for triggering photographing, and the server sends the parking order information to a mobile client to finish fee deduction operation;
the pile body is used for fixing the radar module and the camera on one side of the parking space far away from the center of the road.
2. The millimeter wave radar detection-based intelligent road parking device as claimed in claim 1, wherein the pile body is disposed between two adjacent parking spaces, and two cameras are disposed on the upper side of the pile body, the two cameras are respectively used for taking pictures of vehicles in one of the parking spaces, and the radar module is a millimeter wave radar module.
3. The intelligent parking equipment for roads based on millimeter wave radar detection according to claim 1, further comprising a light supplement lamp, wherein the light supplement lamp is arranged on the pile body and is connected with the radar module through a light supplement lamp driving circuit.
4. The intelligent parking equipment for roads based on millimeter wave radar detection as claimed in claim 1, further comprising status indicator lamps, wherein the status indicator lamps are arranged on the pile body and connected with the radar module through a status indicator lamp driving circuit.
5. The intelligent parking equipment for roads based on millimeter wave radar detection as claimed in claim 1, wherein said camera driving circuit comprises a resistor R64 with one end connected with radar module, the other end of said resistor R64 is connected with the base of a transistor Q11, the emitter of said transistor Q11 is grounded, and a resistor R66 is connected between the base and the emitter, the collector of said transistor Q11 is connected with one end of a resistor R44 and the gate of MOS transistor, the other end of said resistor R44 and the source of MOS transistor are respectively connected with the positive pole of power supply, and the drain of said MOS transistor is connected with camera.
6. The intelligent parking equipment for roads based on millimeter wave radar detection as claimed in claim 3, wherein the supplementary lighting lamp driving circuit comprises a MOS tube Q4 with the drain connected with the negative electrode of the supplementary lighting lamp, the grid of the MOS tube Q4 is connected with one end of a resistor R4 and a resistor R48, the other end of the resistor R4 and the source of the MOS tube Q4 are both grounded, and the other end of the resistor R48 is connected with the radar module.
7. The intelligent parking equipment for the road based on the millimeter wave radar detection as claimed in claim 4, wherein the status indicator lamp driving circuit comprises a MOS tube Q1 with the drain connected with the cathode of the status indicator lamp, the grid of the MOS tube Q1 is respectively connected with one end of a resistor R1 and one end of a resistor R45, the other end of the resistor R1 and the source of the MOS tube Q1 are both grounded, and the other end of the resistor R45 is connected with the radar module.
8. The millimeter wave radar detection-based intelligent parking equipment for roads of claim 2, wherein the millimeter wave radar module comprises a millimeter wave radar module, a processor and a radar antenna, the processor and the radar antenna are connected with the millimeter wave radar module, the processor is connected with the camera, a gigabit Ethernet module is connected between the processor and the communication module, and the millimeter wave radar module and the processor are connected with a power supply module.
9. The intelligent road parking system based on millimeter wave radar detection comprises a server and a mobile client connected with the server, and is characterized by further comprising the equipment of any one of claims 1 to 8, wherein the server receives license plate number image data of a vehicle uploaded by the equipment and absolute time for triggering photographing, analyzes the license plate number of the vehicle based on an image recognition technology, generates parking order information according to the license plate number and the absolute time for triggering photographing after the vehicle leaves, and sends the parking order information to the corresponding mobile client, and the mobile client finishes fee deduction operation according to the parking order information.
10. The millimeter wave radar detection-based intelligent road parking system according to claim 9, further comprising a manual calling module, wherein the manual calling module is connected with the server, and when the radar module detects that the parking space is occupied and the server cannot acquire the license plate number of the vehicle, the server triggers the manual calling module to operate so as to perform manual charging.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354221A (en) * | 2020-04-10 | 2020-06-30 | 南京楚航科技有限公司 | Intelligent road parking equipment and system based on millimeter wave radar detection |
| CN112735178A (en) * | 2020-12-31 | 2021-04-30 | 上海镭芯微电子股份有限公司 | Parking error correction device and method |
| CN114999215A (en) * | 2022-05-27 | 2022-09-02 | 北京筑梦园科技有限公司 | Vehicle information acquisition method and device and parking management system |
| TWI784618B (en) * | 2021-07-15 | 2022-11-21 | 飛鳥車用電子股份有限公司 | Radar detection system with low power consumption |
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2020
- 2020-04-10 CN CN202020517168.0U patent/CN211928753U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354221A (en) * | 2020-04-10 | 2020-06-30 | 南京楚航科技有限公司 | Intelligent road parking equipment and system based on millimeter wave radar detection |
| CN112735178A (en) * | 2020-12-31 | 2021-04-30 | 上海镭芯微电子股份有限公司 | Parking error correction device and method |
| TWI784618B (en) * | 2021-07-15 | 2022-11-21 | 飛鳥車用電子股份有限公司 | Radar detection system with low power consumption |
| CN114999215A (en) * | 2022-05-27 | 2022-09-02 | 北京筑梦园科技有限公司 | Vehicle information acquisition method and device and parking management system |
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