CN113554768A - Parking space parking management method and parking space parking management system - Google Patents
Parking space parking management method and parking space parking management system Download PDFInfo
- Publication number
- CN113554768A CN113554768A CN202110874610.4A CN202110874610A CN113554768A CN 113554768 A CN113554768 A CN 113554768A CN 202110874610 A CN202110874610 A CN 202110874610A CN 113554768 A CN113554768 A CN 113554768A
- Authority
- CN
- China
- Prior art keywords
- target
- geomagnetic
- parking space
- judgment result
- bluetooth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007726 management method Methods 0.000 title claims abstract description 36
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 53
- 238000001514 detection method Methods 0.000 claims abstract description 40
- 230000008859 change Effects 0.000 claims abstract description 10
- 230000005358 geomagnetic field Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000006399 behavior Effects 0.000 description 3
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- 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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
- G08G1/142—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces external to the vehicles
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
- G08G1/148—Management of a network of parking areas
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Finance (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention provides a parking space parking management method, which is applied to a geomagnetic vehicle detector and comprises the following steps: acquiring a target license plate number and a target RSSI signal parameter of a target vehicle; calculating the geomagnetic field change according to a geomagnetic detection algorithm to obtain a geomagnetic judgment result; calculating the target RSSI signal parameters according to a Bluetooth RSSI algorithm to obtain a Bluetooth judgment result; obtaining a target parking space state judgment result according to the geomagnetic judgment result and the Bluetooth judgment result; when the target parking space state judgment result is inconsistent with the geomagnetic judgment result, calibrating a geomagnetic detection algorithm according to the target parking space state judgment result; and uploading the license plate number and the target parking space state judgment result to a cloud. According to the invention, once the geomagnetic judgment result is inaccurate, the geomagnetic judgment result is calibrated, and a user side uploading mode is not relied on, so that the technical problems of low detection accuracy, sometimes poor signals and the like are solved.
Description
Technical Field
The invention relates to the technical field of intelligent traffic, in particular to a parking space management method and a parking space management system.
Background
As urban populations grow, vehicle reserves also increase. Parking is difficult, and one position is difficult to be asked for and becomes the normality, seriously influences city resident's trip and experiences. In order to improve the urban road management level and optimize road resource allocation, more and more cities begin to carry out intelligent transformation on urban roadside parking spaces in recent years, and products related to the transformation comprise a geomagnetic vehicle detector, high and low video piles, a video patrol vehicle, an intelligent parking space lock and the like.
The management method adopted by roadside parking in the city at present comprises the modes of manual PDA evidence obtaining, geomagnetic vehicle inspection device/high-low video pile/video patrol vehicle evidence obtaining and the like, but the problems of low detection accuracy, poor signal and the like exist, and the operation efficiency and the parking experience of vehicle owners are influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a parking space management method and a parking space management system, which aim to solve the technical problems of low detection accuracy and sometimes poor signals of the traditional technology in the related art.
According to an embodiment of the invention, the invention provides a parking space management method, which is applied to a geomagnetic vehicle detector and comprises the following steps:
acquiring a target license plate number and a target RSSI signal parameter of a target vehicle;
calculating the geomagnetic field change according to a geomagnetic detection algorithm to obtain a geomagnetic judgment result;
calculating the target RSSI signal parameters according to a Bluetooth RSSI algorithm to obtain a Bluetooth judgment result;
obtaining a target parking space state judgment result according to the geomagnetic judgment result and the Bluetooth judgment result;
when the target parking space state judgment result is inconsistent with the geomagnetic judgment result, calibrating a geomagnetic detection algorithm according to the target parking space state judgment result;
and uploading the license plate number and the target parking space state judgment result to a cloud.
Optionally, the obtaining of the target license plate number and the target RSSI signal parameter of the target vehicle includes: when the change of the geomagnetic field is monitored, starting Bluetooth scanning; and acquiring the license plate number and the target RSSI signal parameter of the target vehicle.
Optionally, the license plate number, the user ID, and the target parking space state determination result are uploaded to a cloud, including: and communicating with a cloud terminal through an LPWA technology and a custom communication protocol, and transmitting the target license plate number and the target parking space state judgment result.
Optionally, receiving a target license plate number and a target RSSI signal parameter broadcasted by a user terminal; the method comprises the following steps:
when the license plate numbers and the target RSSI signal parameters broadcasted by a plurality of user terminals are received, the license plate number and the signal parameters with the strongest RSSI signals are adopted as the target license plate number and the target RSSI signal parameters.
Optionally, the expression of the bluetooth RSSI algorithm is: y is kx + b; wherein, (x is more than or equal to 0, and k is not equal to 0); y is the RSSI value; x is time; k is a curve coefficient.
Optionally, the calculating the target RSSI signal parameter according to a bluetooth RSSI algorithm to obtain a bluetooth determination result includes: generating an RSSI curve according to the time interval and the matched RSSI value; acquiring the sum of k values of all time intervals of the RSSI curve; if the sum of the k values is larger than zero, the Bluetooth judgment result is that the parking space is occupied; and if the sum of the k values is less than zero, the Bluetooth judgment result is that the parking space is left.
Optionally, the calculating the target RSSI signal parameter according to a bluetooth RSSI algorithm to obtain a bluetooth determination result includes: and when the segmented k value is equal to zero, judging that the vehicle behavior is stable, and finishing generating the RSSI curve.
Optionally, when target parking stall state decision-making result with when the earth magnetism decision-making result is inconsistent, calibrate earth magnetism detection algorithm according to target parking stall state decision-making result, include: and the geomagnetic detection algorithm calibrates the geomagnetic judgment reference value in the current state according to the target parking space state judgment result.
According to an embodiment of the present invention, the present invention provides a parking management system for parking spaces, including: the system comprises a geomagnetic vehicle detector, a user terminal and a cloud system;
the user terminal is used for broadcasting a target license plate number and a target RSSI signal parameter of a target vehicle by Bluetooth;
the geomagnetic vehicle detector is used for implementing the method steps as claimed in claim 1;
and the cloud system is used for receiving the number of the license plate of the geomagnetic vehicle detector and the judgment result of the state of the target parking space.
Compared with the prior art, the invention has the following beneficial effects:
according to the technology, the target parking space state judgment result is obtained through the geomagnetic judgment result and the Bluetooth judgment result, so that the geomagnetic judgment result and the Bluetooth judgment result can be supplemented with each other, and a result closer to reality is obtained. And when the geomagnetic judgment result does not accord with the parking space judgment result, a geomagnetic algorithm checking step is particularly added, so that the next geomagnetic judgment is more accurate. And after the target parking space state judgment result is obtained, the mobile phone does not need to be returned, the license plate number and the target parking space state judgment result can be directly transmitted to the cloud end through the geomagnetic vehicle detector, the parking space state can be known by the cloud end without depending on a mobile phone channel 3/4/5G of a user, so that the charging on line is normally carried out or the charging of a server end under the line is informed, and the problems that the mobile phone signal of the user is poor, the networking of the mobile phone of the user is not opened, or the data of the mobile phone is tampered by rogue software and the like can be solved. Through having integrated earth magnetic algorithm, bluetooth receipt and bluetooth detection, bluetooth calibration earth magnetism, upload function such as high in the clouds with the car detector of using the earth magnet as an organic whole, from reducing signal transmission repeatedly, the angle of centralized processing, through reducing the error rate that signal transmission and lead to, through not handling based on user's cell-phone and having avoided the cell-phone poisoning, cell-phone signal scheduling problem not good, thereby in a comprehensive way, improved and detected the rate of accuracy, also solved and used the cell-phone and sometimes can the problem that the signal is not good.
Drawings
Fig. 1 is a flowchart of a parking space management method according to an embodiment of the present invention;
FIG. 2 is a flowchart of a parking space management method according to an embodiment of the present invention
FIG. 3 is a diagram of RSSI function under a warehousing condition in an embodiment of the present invention;
FIG. 4 is a diagram of RSSI function under the out-of-library condition in an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an operation of the parking management system according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating an operation of the parking management system according to an embodiment of the present invention.
Fig. 7 is a flowchart illustrating an operation of the parking management system according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The terms "comprises," "comprising," "has," "having," "includes," "including," and any variations thereof in the description and claims of the invention and the above-described drawings are intended to cover non-exclusive inclusions, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not explicitly listed or inherent to such process, method, article, or apparatus. The division of the modules presented herein is merely a logical division, and may be implemented in other ways in practical applications, for example, multiple modules may be combined or integrated into another system, or some features may be omitted, or not implemented, and in addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, and the indirect coupling or communication connection between the modules may be in an electrical or other similar form, which is not limited herein. Furthermore, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed in a plurality of circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purpose of the embodiments of the present invention. It will be understood that when an element/module is referred to as being "connected" or "coupled" to another element/module, it can be directly connected or coupled to the other element/module or the elements/modules may also be present. Conversely, when an element/module is referred to as being "directly connected" or "directly coupled" to another element/module, there are no intervening elements/modules present.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
In order to make the objects, technical solutions and beneficial effects of the present invention more clearly apparent, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, an embodiment of the present invention provides a parking space management method, which is applied to a geomagnetic vehicle detector, and the method includes:
acquiring a target license plate number and a target RSSI signal parameter of a target vehicle;
calculating the geomagnetic field change according to a geomagnetic detection algorithm to obtain a geomagnetic judgment result;
calculating the target RSSI signal parameters according to a Bluetooth RSSI algorithm to obtain a Bluetooth judgment result;
obtaining a target parking space state judgment result according to the geomagnetic judgment result and the Bluetooth judgment result;
when the target parking space state judgment result is inconsistent with the geomagnetic judgment result, calibrating a geomagnetic detection algorithm according to the target parking space state judgment result;
and uploading the license plate number and the target parking space state judgment result to a cloud.
The steps of the method are only one division in logic and are not in strict time sequence.
The invention is provided because the inventor finds the problems of low detection accuracy, poor signal and the like at present. On one hand, the signal accuracy is that the geomagnetic algorithm cannot be calibrated after the judgment result is inaccurate, for example, when a vehicle is in a state of being parked, if the geomagnetic algorithm judges that the vehicle is empty, the error of geomagnetic judgment may continue all the time, for example, the geomagnetic has a preset interference value, and the vehicle is predicted to enter or leave by the rise or fall of the geomagnetic, and the geomagnetic can be calibrated by adjusting the preset interference value or other reference values.
In this embodiment, as shown in fig. 1 and fig. 2, an embodiment of the present invention provides a parking space management method, which is applied to a geomagnetic vehicle detector, and the method includes the following steps:
step S101 is to obtain the target license plate number and the target RSSI signal parameter of the target vehicle.
Install above-mentioned ground magnetism check out test set in the parking stall in roadside parking stall or parking area, can install in the below (buried) of parking stall, or the one side in parking stall, or the top in parking stall. Through user terminal, for example cell-phone etc. when being close to the parking stall, send the bluetooth broadcast to earth magnetism car inspection ware, receive the broadcast signal by earth magnetism car inspection ware again, the broadcast signal includes the target vehicle license plate number of current parking stall to obtain the signal temporal target RSSI signal parameter such as strong and weak of broadcast signal simultaneously.
The geomagnetic vehicle detector can be powered by a battery, an independent Bluetooth SOC (system on chip) can be adopted in a master control scheme, a common MCU (micro control unit) and a Bluetooth special chip can also be adopted, a built-in detection algorithm comprises a geomagnetic detection algorithm, a Bluetooth RSSI (received signal strength indicator) judgment algorithm and a fusion algorithm, LPWA (low power consumption) communication technologies such as NB-IOT (radio advanced technology/internet technology)/Lora (Lora) and the like are adopted for communicating with a cloud, and a private user-defined communication protocol (supporting license plate number coding transmission) can be adopted for supporting Bluetooth broadcast scanning and analyzing broadcast contents.
In the bluetooth broadcast, the broadcast custom field may also contain a specific header and a 4-byte application user ID.
Optionally, the obtaining of the target license plate number and the target RSSI signal parameter of the target vehicle includes: when the change of the geomagnetic field is monitored, starting Bluetooth scanning; and acquiring the license plate number and the target RSSI signal parameter of the target vehicle.
In this embodiment, the bluetooth scanning device is relatively power-consuming, and if the bluetooth scanning device is always turned on, the bluetooth scanning device is not environment-friendly and energy-saving enough. Through carrying out geomagnetic field change monitoring earlier, when magnetic field changes, for example grow or diminish, open the bluetooth scanning again, can reach the effect of power saving.
Step S102, computing the geomagnetic field change according to a geomagnetic detection algorithm to obtain a geomagnetic judgment result.
According to the geomagnetic detection algorithm, a built-in geomagnetic sensor transmits collected values to a main control chip, such as a Micro Control Unit (MCU), based on the disturbance of the earth magnetic field, the main control chip processes data based on the collected values, and finally the in-out state of a vehicle is calculated. For example, in the geomagnetic algorithm, a value is given by a large amount of statistical data in a previous experiment, and if the geomagnetic intensity is lower than the value, the interference intensity is weak, and the reliability of the geomagnetic algorithm is low.
Regarding the geomagnetic algorithm, the principle is as follows: the intensity of the terrestrial magnetic field acquired by the geomagnetic sensor is mapped to an xyz three-dimensional space coordinate system, so that the geomagnetic intensity value acquired at any time is represented as (a, b, c), and abc respectively corresponds to the components of xyz three axes in the three-dimensional space coordinate system. Since the earth magnetic field at any point in space can be regarded as constant (or fluctuated in a very small range) without external interference in a period of time, the detection core principle of the geomagnetic vehicle detector is based on the fact that the geomagnetic intensity remains constant before and after the vehicle stops.
Step S103, calculating the target RSSI signal parameters according to the Bluetooth RSSI algorithm to obtain a Bluetooth judgment result.
Optionally, the expression of the bluetooth RSSI algorithm is: y is kx + b; wherein, (x is more than or equal to 0, and k is not equal to 0); y is the RSSI value; x is time; k is a curve coefficient.
The above formula is a common linear equation in mathematics, and is obtained by connecting coordinates of any two points in a two-dimensional plane rectangular coordinate system (x, y), and the calculation formula is as follows: assuming any two points A (x1, y1) and B (x2, y2) in the coordinate system, wherein x is a sampling time axis t and y is an RSSI value, two adjacent samples generate two points A and B in the two-position coordinate system in the process of vehicle entering and exiting, the two points A and B are connected to obtain a straight line, and a plurality of line segments obtain curves as shown in the drawing of the specification. The first step calculates the value of k:
the second part calculates the value of b: bringing k to point a, b-y 1-kx1,
b has the following meaning: a line segment connecting the points AB and AB extends infinitely to both ends, and forms an intersection point with the x-axis and an intersection point (0, b) with the y-axis. b represents only the intersection value of the linear function equation on the y-axis, and there is no practical meaning in the present invention.
In the vehicle in-and-out stage, the geomagnetic vehicle detector scans Bluetooth broadcast signals sent by a mobile phone application and records RSSI signal intensity, detection is continuously carried out in the parking and out-of-vehicle stage, after the result is judged by the geomagnetic detection algorithm, the Bluetooth RSSI judgment algorithm stops detection, and a function curve relation is generated by utilizing the RSSI value and a time axis relation. As shown in fig. 3, when the RSSI curve is in the rising state, it indicates that the vehicle is approaching. As shown in fig. 4, when the RSSI curve is in a down state, the vehicle is far away.
Optionally, as shown in fig. 3 and 4, the obtaining a bluetooth determination result by calculating the target RSSI signal parameter according to a bluetooth RSSI algorithm includes:
generating an RSSI curve according to the time interval and the matched RSSI value;
the sum of all the segmented k values of the curve is larger than zero, and the Bluetooth judgment result indicates that the vehicle enters and the parking space is occupied;
and the sum of the k values of all the segments of the curve is less than zero, and the Bluetooth judgment result indicates that the vehicle runs out and the parking space is empty.
As shown in fig. 3 and 4, a is RSSI corresponding to k1 acquired at the 1 st time, B is RSSI corresponding to k2 acquired at the 2 nd time, C is RSSI corresponding to k3 acquired at the 3 rd time, N is RSSI corresponding to kn acquired at the nth time, and it is determined whether k1+ k2+ k3 … … + kn is greater than 0 or less than 0. And the sum of all the segmented k values of the curve is greater than zero, and the Bluetooth judgment result indicates that the vehicle enters and the parking space is occupied. And the sum of the k values of all the segments of the curve is less than zero, and the Bluetooth judgment result indicates that the vehicle runs out and the parking space is empty.
As shown in fig. 3, the determination logic is that when the sum of k values of all segments of the RSSI variation curve is greater than 0 during the whole parking process, it is determined that the vehicle enters. In contrast, as can be seen from fig. 4, when k1 to kn are all less than or equal to 0, the RSSI gradually decreases, and therefore, when the sum of k values of all segments of the RSSI variation curve is less than 0 during the whole parking process, it can be determined that the vehicle is driven away.
Optionally, the calculating the target RSSI signal parameter according to a bluetooth RSSI algorithm to obtain a bluetooth determination result includes:
and when the segmented k value is equal to zero, judging that the vehicle behavior is stable, and finishing generating the RSSI curve.
In this embodiment, after the RSSI curve is captured from the beginning to wait for the RSSI to stabilize for 3-5 seconds, it can be considered that the parking behavior is finished, at this time, all the acquired RSSI values are set as y, the acquisition time is set as x, the curve relationship y of adjacent acquisition points can be generated as kx + B, the slope of the curve between the 1 st point a and the 2 nd point B is k1, and the slope of the curve between the N-1 st point and the N nd point is kn, as can be seen from fig. 3, from k1 to kn, all are greater than or equal to 0, after the parking is stabilized, the RSSI tends to stabilize, so the y values between the last points approach, and the slope k approaches 0 to 0.
That is, as shown in fig. 3 and 4, at the end of the curve, the value of N, kN is equal to zero, thus indicating that the vehicle is stationary or has driven out of the sensing area, and the value is not taken any more to generate the curve.
And step S104, obtaining a target parking space state judgment result according to the geomagnetic judgment result and the Bluetooth judgment result.
And integrating the magnetic judgment result and the Bluetooth judgment result to obtain a target parking space state judgment result. Because there are two kinds of modes, can be so that the parking stall judged result is more accurate.
Optionally, according to earth magnetism judged result and bluetooth judged result, obtain target parking stall state judged result, include:
calculating the reliability of a geomagnetic detection algorithm; when the reliability is lower than a preset threshold value, or when the reliability is not lower than the preset threshold value and the RSSI data is normal, obtaining a parking space state judgment result according to the Bluetooth judgment result; and when the reliability is not lower than the preset threshold and the RSSI data is abnormal, obtaining a parking space state judgment result according to the geomagnetic judgment result.
The RSSI data abnormality mainly means that no bluetooth signal is received or the user terminal is not turned on. For example, when the car owner does not open the mobile phone APP and normal calculation cannot be performed, the result of the geomagnetic detection algorithm should be collected and informed separately.
And step S105, when the target parking space state judgment result is inconsistent with the geomagnetic judgment result, calibrating a geomagnetic detection algorithm according to the target parking space state judgment result.
If the geomagnetic detection algorithm is wrong currently, the geomagnetic detection algorithm is not calibrated, the geomagnetic detection algorithm continues to be wrong for the next vehicle, and the automatic correction function in the geomagnetic detection algorithm is automatically calibrated until the geomagnetic detection algorithm is continuously wrong for a few times. In the invention, the current state of the parking space is reversely input to the geomagnetic detection algorithm in time, so that the reference point of the geomagnetic detection algorithm is calibrated in the geomagnetic detection algorithm, and the subsequent accurate detection is facilitated.
Regarding the geomagnetic algorithm detection and calibration, one process that can be implemented is as follows:
1. and acquiring geomagnetic values (a1, b1, c1) without vehicles on the parking spaces, wherein the geomagnetic values are reference values Vbase.
2. The vehicle-borne geomagnetic values (a2, b2, c2) after the vehicle is parked are obtained, and the values are the disturbance values Vdisturb.
3. And calculating the difference between Vdifferential and Vbase, comparing the difference with a preset threshold TH1, and judging that the vehicle is parked when the difference exceeds the threshold, otherwise, judging that no vehicle is parked.
4. The non-vehicle geomagnetic value (a3, b3, c3) after the vehicle is driven away is acquired, and is the driving away value Vout.
5. The difference between Vout and Vbase is calculated and compared to a preset threshold TH2 below which the vehicle is deemed to be driving away, otherwise the vehicle is still in space.
6. Vbase ═ Vbase + kvut; the reference value Vbase is updated. If the result of the Bluetooth RSSI is more reliable, skipping the item and directly adopting the step 1 to update (calibrate) the reference value.
And step S106, uploading the license plate number and the target parking space state judgment result to a cloud.
After the target parking space state judgment result is obtained, the license plate number and the target parking space state judgment result are directly transmitted to the cloud end through the geomagnetic vehicle detector without returning a mobile phone, the situation that a user mobile phone signal is poor, or the user mobile phone is not connected to the internet, or rogue software tampering data exists in the mobile phone can be solved without depending on a mobile phone channel 4/5G of the user.
Optionally, LPWA low-power-consumption communication technologies such as NB-IOT/Lora are adopted to communicate with the cloud, a private self-defined communication protocol (supporting license plate number code transmission) is adopted, the license plate code format is 10 bytes, the first 3 bytes are UTF8 codes of Chinese characters in province and city, 7 bytes are ASCII format character string representation numbers (letters and numbers), and new energy code bits are reserved.
Referring to fig. 5, 6, and 7, the present invention provides a parking management system for parking spaces, including: the system comprises a geomagnetic vehicle detector, a user terminal and a cloud system;
the user terminal is used for broadcasting a target license plate number and a target RSSI signal parameter of a target vehicle by Bluetooth;
the geomagnetic vehicle detector is used for implementing the method steps as claimed in claim 1;
and the cloud system is used for receiving the number of the license plate of the geomagnetic vehicle detector and the judgment result of the state of the target parking space.
The user terminal can be implemented in the form of mobile phone application APP, and the vehicle owner binds the license plate number and distributes the unique user ID through the cloud system during registration. The method supports real-time display of the occupation condition of the parking space near the current urban road, supports search and navigation of the idle parking space, supports a Bluetooth protocol of more than 5.0, and broadcasts with license plate numbers and user ID information in a circulating manner in the self-service parking stage.
Optionally, when the vehicle owner is registered and two or more different license plate numbers are bound, the APP pops up prompt information when the vehicle owner starts parking, and prompts the vehicle owner to select a specific license plate number of the vehicle.
Optionally, the APP is applied to the mobile phone, and when the APP locates that the position of the mobile phone reaches the area near the target parking section, the bluetooth broadcast is automatically turned on, the bluetooth broadcast data packet with the license plate number in the specific format is broadcast, and the bluetooth broadcast data packet is broadcast at certain broadcast intervals in a circulating manner. After the vehicle that ground magnetic sensor reported received in the high in the clouds drives into state data, give cell-phone APP information through mobile network propelling movement, let the car owner confirm the position, whether the parking stall number is correct, after the car owner clicks on APP and confirms, the system begins to charge. If the owner clicks the false report or the false report, the order enters an abnormal order flow, the APP prompts the owner to carry out self-service processing, and the owner can also select a worker of a parking company to carry out on-site processing.
Optionally, the mobile phone APP supports third-party map access, navigation, voice broadcast of navigation information, and GPS/beidou positioning.
Optionally, above-mentioned cell-phone application APP supports to shoot and upload, and when the magnetic sensor appears lou examining and missing reporting or the wrong report, the order got into unusual order, and the car owner can be foregone by oneself, and the mode is for calling the cell-phone camera through APP and to the vehicle dead ahead, dead astern, the three direction in side shoots and automatically uploads the high in the clouds, supports to carry out AI image recognition at cell-phone end to license plate number.
Optionally, above-mentioned cell-phone application APP supports to carry out AI image recognition to road parking number printing word, and in unusual order flow, the car owner can shoot through APP, then by APP automatic identification license plate number and parking number, the car owner only need confirm the number correct or not can, if the discernment is wrong, the high in the clouds is directly uploaded to the optional photo, by high in the clouds secondary identification or backstage manual handling.
Optionally, the mobile phone APP provides, in addition to the function related to the parking service, information display of nearby business circles, a telephone number of a business, address information, and the like, so as to implement an advertisement value-added service.
Referring to fig. 5, 6 and 7, when a car owner needs to park, the mobile phone application is opened to search for an idle parking space and navigate, the mobile phone application monitors the position of the car through positioning, a built-in third-party map navigation is opened, when the car owner starts to drive into the parking space, the mobile phone application opens the mobile phone bluetooth and sets the bluetooth transmitting power to be highest, then the license plate number and the user ID of the car are broadcasted through the bluetooth, when a magnetic field detector monitors the change of a magnetic field, bluetooth scanning is started, the license plate number and the user ID are obtained from the bluetooth broadcast of the mobile phone application, then the parking space state and the license plate number/user ID are uploaded to a cloud terminal through an LPWA network, the cloud terminal further processes data and then pushes the data to the mobile phone application to confirm the user, and the car owner can know that the parking is successful and starts to charge.
Optionally, according to the detection method and system, when navigating by using the mobile phone APP, fixed-point navigation is not performed for a certain parking space, but the car owner is guided to drive to a certain road section, the APP provides the number of the current free parking spaces in the driving direction of the road section, and the car owner determines the specific parking position by himself.
Optionally, when the vehicle leaves, the vehicle owner starts the mobile phone application, the geomagnetic vehicle detector reports the vehicle leaving to the cloud, the cloud stops charging and pushes a message to the mobile phone application, and the vehicle owner can automatically deduct fees through the bound account and can also manually pay fees through the mobile phone application.
Optionally, the geomagnetic vehicle detector may filter interference of multiple different license plate broadcasts by using a bluetooth RSSI in a vehicle entering stage, and defaults to using a broadcaster with the strongest RSSI signal as a vehicle parked above the current parking space.
Optionally, if the car owner forgets to open the mobile phone application, the geomagnetic car detector reports that no license plate information exists in the parking space state, the cloud system judges that the order is abnormal, and performs on-site evidence collection processing again by a worker, or the cloud system informs the car owner of self-help evidence collection, shooting and uploading through short messages/Wechat, so that the parking space and the license plate information of the current order are perfected.
Optionally, the cloud system comprises a parking management module, a geomagnetic terminal management module, an order management module, a user management module, a payment management module, a license plate recognition management module and other sub-function modules, and maps and binds information such as geomagnetic IDs, parking IDs, user IDs, license plate numbers and the like in the database.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. The parking space parking management method is applied to a geomagnetic vehicle detector, and comprises the following steps:
acquiring a target license plate number and a target RSSI signal parameter of a target vehicle;
calculating the geomagnetic field change according to a geomagnetic detection algorithm to obtain a geomagnetic judgment result;
calculating the target RSSI signal parameters according to a Bluetooth RSSI algorithm to obtain a Bluetooth judgment result;
obtaining a target parking space state judgment result according to the geomagnetic judgment result and the Bluetooth judgment result;
when the target parking space state judgment result is inconsistent with the geomagnetic judgment result, calibrating a geomagnetic detection algorithm according to the target parking space state judgment result;
and uploading the license plate number and the target parking space state judgment result to a cloud.
2. The parking space management method according to claim 1, wherein the obtaining of the target license plate number and the target RSSI signal parameters of the target vehicle comprises:
when the change of the geomagnetic field is monitored, starting Bluetooth scanning;
and acquiring the license plate number and the target RSSI signal parameter of the target vehicle.
3. The parking space management method according to claim 1, wherein the step of uploading the license plate number, the user ID and the target parking space state determination result to a cloud, comprises the steps of: and communicating with a cloud terminal through an LPWA technology and a custom communication protocol, and transmitting the target license plate number and the target parking space state judgment result.
4. The parking space management method according to claim 1, wherein the obtaining of the target license plate number and the target RSSI signal parameters of the target vehicle comprises:
when a plurality of license plate numbers and a plurality of target RSSI signal parameters are received, taking the target RSSI signal parameter with the strongest signal as the target RSSI signal parameter;
and acquiring a target license plate number matched with the target RSSI signal parameter.
5. The parking space management method according to claim 1, wherein the expression of the bluetooth RSSI algorithm is:
y＝kx+b；
wherein, (x is more than or equal to 0, and k is not equal to 0); y is the RSSI value; x is time; k is a curve coefficient.
6. The parking space management method according to claim 5, wherein the operation is performed on the target RSSI signal parameter according to the Bluetooth RSSI algorithm to obtain a Bluetooth judgment result, and the method comprises the following steps:
generating an RSSI curve according to the time interval and the matched RSSI value;
acquiring the sum of k values of all time intervals of the RSSI curve;
if the sum of the k values is larger than zero, the Bluetooth judgment result is that the parking space is occupied;
and if the sum of the k values is less than zero, the Bluetooth judgment result is that the parking space is left.
7. The method of claim 6, further comprising:
and when the segmented k value is equal to zero, judging that the vehicle behavior is stable, and finishing generating the RSSI curve.
8. The parking space management method according to claim 1, wherein obtaining a target parking space state determination result according to the geomagnetic determination result and the bluetooth determination result comprises:
calculating the reliability of a geomagnetic detection algorithm;
when the reliability is lower than a preset threshold value, or when the reliability is not lower than the preset threshold value and the RSSI data is normal, obtaining a parking space state judgment result according to the Bluetooth judgment result;
and when the reliability is not lower than the preset threshold and the RSSI data is abnormal, obtaining a parking space state judgment result according to the geomagnetic judgment result.
9. The parking space management method according to claim 1, wherein when the target parking space state determination result is inconsistent with the geomagnetic determination result, calibrating a geomagnetic detection algorithm according to the target parking space state determination result, includes:
and the geomagnetic detection algorithm calibrates the geomagnetic judgment reference value in the current state according to the target parking space state judgment result.
10. The parking space management system is characterized by comprising: the system comprises a geomagnetic vehicle detector, a user terminal and a cloud system;
the user terminal is used for broadcasting a target license plate number and a target RSSI signal parameter of a target vehicle by Bluetooth;
the geomagnetic vehicle detector is used for implementing the method steps as claimed in claim 1;
and the cloud system is used for receiving the number of the license plate of the geomagnetic vehicle detector and the judgment result of the state of the target parking space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874610.4A CN113554768A (en) | 2021-07-30 | 2021-07-30 | Parking space parking management method and parking space parking management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110874610.4A CN113554768A (en) | 2021-07-30 | 2021-07-30 | Parking space parking management method and parking space parking management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113554768A true CN113554768A (en) | 2021-10-26 |
Family
ID=78105046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110874610.4A Pending CN113554768A (en) | 2021-07-30 | 2021-07-30 | Parking space parking management method and parking space parking management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113554768A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114155739A (en) * | 2021-12-01 | 2022-03-08 | 河南江尚智能建设有限公司 | Wireless sensor for sensing license plate of vehicle and parking management method applying same |
| CN115035727A (en) * | 2022-06-14 | 2022-09-09 | 重庆长安汽车股份有限公司 | Parking spot lock system based on PEPS key and locking method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722997A (en) * | 2011-12-31 | 2012-10-10 | 北京时代凌宇科技有限公司 | Parking space detection method and system thereof |
| CN103198528A (en) * | 2013-02-26 | 2013-07-10 | 无锡普智联科高新技术有限公司 | System and method for park charging based on RSSI locating |
| CN104200701A (en) * | 2014-08-26 | 2014-12-10 | 刘征 | Parking space detection comprehensive judgment method |
| CN106781657A (en) * | 2016-12-20 | 2017-05-31 | 重庆金瓯科技发展有限责任公司 | A kind of parking stall intelligent identifying system and method |
| CN106875733A (en) * | 2017-03-17 | 2017-06-20 | 南京理工大学 | Based on adaptive environment multisensor low-power consumption vehicle detecting system and method |
| CN111580184A (en) * | 2020-05-07 | 2020-08-25 | 迈锐数据(无锡)有限公司 | Geomagnetic calibration method and system based on wireless signal strength |
-
2021
- 2021-07-30 CN CN202110874610.4A patent/CN113554768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102722997A (en) * | 2011-12-31 | 2012-10-10 | 北京时代凌宇科技有限公司 | Parking space detection method and system thereof |
| CN103198528A (en) * | 2013-02-26 | 2013-07-10 | 无锡普智联科高新技术有限公司 | System and method for park charging based on RSSI locating |
| CN104200701A (en) * | 2014-08-26 | 2014-12-10 | 刘征 | Parking space detection comprehensive judgment method |
| CN106781657A (en) * | 2016-12-20 | 2017-05-31 | 重庆金瓯科技发展有限责任公司 | A kind of parking stall intelligent identifying system and method |
| CN106875733A (en) * | 2017-03-17 | 2017-06-20 | 南京理工大学 | Based on adaptive environment multisensor low-power consumption vehicle detecting system and method |
| CN111580184A (en) * | 2020-05-07 | 2020-08-25 | 迈锐数据(无锡)有限公司 | Geomagnetic calibration method and system based on wireless signal strength |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114155739A (en) * | 2021-12-01 | 2022-03-08 | 河南江尚智能建设有限公司 | Wireless sensor for sensing license plate of vehicle and parking management method applying same |
| CN115035727A (en) * | 2022-06-14 | 2022-09-09 | 重庆长安汽车股份有限公司 | Parking spot lock system based on PEPS key and locking method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108230734B (en) | Outdoor wisdom parking system based on V2X communication | |
| CN106875731B (en) | Method and device for guiding vehicle parking | |
| CN101785034B (en) | An apparatus and method for use in location determination | |
| US9086285B2 (en) | Automatic detection of parking level in multi-level structure | |
| EP1975884B1 (en) | Mobile object charging system and mobile object charging method by mobile object charging system | |
| CN104221065B (en) | The system and method that traffic administration is carried out using lighting mains | |
| CN109084794B (en) | Path planning method | |
| CN108898879A (en) | parking data detection system and method | |
| CN107862899A (en) | Reverse car seeking method, device, computer installation and computer-readable recording medium | |
| CN113554768A (en) | Parking space parking management method and parking space parking management system | |
| CN107484137B (en) | Equipment terminal positioning method system and pile-free fixed-point car renting and returning method | |
| CN113744420B (en) | Road parking charge management method, system and computer readable storage medium | |
| CN106846897A (en) | Parking stall method for managing resource and device | |
| CN111063149A (en) | Mobile ETC (electronic toll collection) non-inductive payment system and method combined with vehicle detection sensor | |
| CN111553994A (en) | Intelligent management system of parking lot, parking method and parking device | |
| CN105139464A (en) | RFID-based parking management method | |
| CN108171807A (en) | A kind of stopping charging system and method | |
| CN104217588A (en) | Method, server and system for acquiring real-time traffic information | |
| CN111784868A (en) | Event recording method and system based on intelligent terminal | |
| CN102083202A (en) | System for acquiring traffic information through mobile terminals | |
| CN110177259A (en) | Underground parking navigation system and method | |
| CN106781603A (en) | A kind of parking lot positioning car searching method based on Beidou satellite navigation | |
| CN104299445B (en) | A kind of parking gap real-time information collection, process, delivery system and method | |
| CN109859611A (en) | Acquisition method, device, equipment and the storage medium of map datum | |
| CN107438875B (en) | Parking lot navigation method, device, system and computer readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211026 |
|
| RJ01 | Rejection of invention patent application after publication |