CN113012442A - Parking space detection method and device - Google Patents
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- G—PHYSICS
- G08—SIGNALLING
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- G08G1/00—Traffic control systems for road vehicles
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- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- 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
Abstract
The invention discloses a parking space detection method and a device, wherein the parking space detection method is applied to a parking space detection device and comprises the following steps: the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information; judging whether the first state information changes or not; when the first state information changes, first output information is obtained according to a first judgment strategy; the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information; judging whether the second state information is changed or not; and when the second state information is changed, second output information is obtained according to a second judgment strategy. The technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
Description
Technical Field
The invention relates to the technical field of parking space detection, in particular to a parking space detection method and device.
Background
The parking space detection is widely applied to parking lots and used for detecting the parking space state of the parking lots and monitoring the parking state of the parking lots in real time. When utilizing earth magnetism to carry out parking stall state detection, because earth magnetism itself has certain change, drift, contains the size that structures, motion body etc. of ferromagnetic substance all can influence peripheral earth magnetism around, lead to earth magnetism detection parking stall state rate of accuracy to reduce.
In order to improve the accuracy of earth magnetism detection parking stall state among the prior art, the technical scheme of main adoption has:
1. the geomagnetic data detection samples are added, and the accuracy of geomagnetic detection is about 92%, so that the method is high in accuracy improvement difficulty and high in power consumption.
2. Adopt infrared sensor + earth magnetism to carry out the parking stall and detect, infrared because its directive property is stronger, during the detection, receives the interference easily, and detection effect is unsatisfactory.
Disclosure of Invention
The invention provides a parking space detection method and a parking space detection device, solves the technical problems of inaccurate parking space state detection and high power consumption in the prior art, and achieves the technical effects of improving the parking space state detection accuracy and low power consumption.
In order to solve the above problem, an embodiment of the present invention provides a parking space detection method, where the parking space detection method is applied to a parking space detection device, where the parking space detection device includes a first parking space, a first geomagnetic device, a first radar device, and a control device, where the first geomagnetic device and the first radar device are disposed in the first parking space, and the first geomagnetic device and the first radar device are in communication connection with the control device, and the parking space detection method includes: the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information; judging whether the first state information changes or not; when the first state information changes, first output information is obtained according to a first judgment strategy; the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information; judging whether the second state information is changed or not; and when the second state information is changed, second output information is obtained according to a second judgment strategy.
Preferably, the first judgment policy includes: when the first state information is changed from no vehicle to vehicle, the first output information is vehicle.
Preferably, the first judgment policy further includes: when the first state information is changed from the vehicle-presence state to the vehicle-absence state, starting the first radar device to detect the state of the first parking space, and obtaining third state information; when the third state information indicates that a vehicle is present, the first output information indicates that a vehicle is present; and when the third state information is no vehicle or covered, the first output information is no vehicle.
Preferably, the second judgment policy includes: and when the second state information indicates that the vehicle is not available and the vehicle is available, the second output information indicates that the vehicle is available.
Preferably, the second judgment policy further includes: when the second state information indicates that the vehicle is changed into a non-vehicle state or a covered state, starting the first geomagnetic device to detect the state of the first parking space, and obtaining fourth state information; when the fourth state information indicates that a vehicle is present, the second output information indicates that a vehicle is present; and when the fourth state information indicates that the vehicle is not available, the second output information indicates that the vehicle is available.
Preferably, the first preset frequency is greater than the second preset frequency.
Preferably, the first preset frequency is: 3 times per minute.
Preferably, the second predetermined frequency is 12 times/hour.
Preferably, the first geomagnetic device and the first radar device are arranged at the center of the first parking space.
Preferably, the first geomagnetic device and the first radar device are in wireless communication connection with the control device.
On the other hand, an embodiment of the present invention further provides a parking space detection device, which executes the parking space detection method, wherein the parking space detection device is applied to a parking lot, the parking lot includes m parking spaces, and the detection device includes: m radar devices; the geomagnetic devices are fixedly arranged on the parking spaces, and one radar device and one geomagnetic device are fixedly arranged on each parking space; the m geomagnetic devices and the m radar devices are in communication connection with the control device; the geomagnetic device transmits detected geomagnetic data to the control device, and the control device obtains state information of the parking space according to the geomagnetic data; the radar device transmits the detected radar data to the control device, and the control device obtains the state information of the parking space according to the radar data; the control device starts or stops the geomagnetic device and the radar device; m is more than or equal to 1 and is a positive integer.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
1. the embodiment of the invention provides a parking space detection device, wherein the parking space detection method is applied to a parking space detection device, the parking space detection device comprises a first parking space, a first geomagnetic device, a first radar device and a control device, the first geomagnetic device and the first radar device are arranged on the first parking space, the first geomagnetic device and the first radar device are in communication connection with the control device, and the parking space detection method comprises the following steps: the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information; judging whether the first state information changes or not; when the first state information changes, first output information is obtained according to a first judgment strategy; the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information; judging whether the second state information is changed or not; and when the second state information is changed, second output information is obtained according to a second judgment strategy. The technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
2. In the embodiment of the invention, when the first state information is changed from the vehicle-presence state to the vehicle-absence state, the first radar device is started to detect the state of the first parking space, so as to obtain third state information; when the third state information indicates that a vehicle is present, the first output information indicates that a vehicle is present; and when the third state information is no vehicle or covered, the first output information is no vehicle. Avoid first ground magnetic device detects the mistake, guarantees the accuracy of first parking stall no car state ensures the accuracy of surplus parking stall quantity, provides important basis for whether the parking area allows the vehicle to continue to get into.
3. The embodiment of the invention also provides a parking space detection device, which executes the parking space detection method, the parking space detection device is applied to a parking lot, the parking lot comprises m parking spaces, and the detection device comprises: m radar devices; the geomagnetic devices are fixedly arranged on the parking spaces, and one radar device and one geomagnetic device are fixedly arranged on each parking space; the m geomagnetic devices and the m radar devices are in communication connection with the control device; the geomagnetic device transmits detected geomagnetic data to the control device, and the control device obtains state information of the parking space according to the geomagnetic data; the radar device transmits the detected radar data to the control device, and the control device obtains the state information of the parking space according to the radar data; the control device starts or stops the geomagnetic device and the radar device; m is more than or equal to 1 and is a positive integer. The technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Fig. 1 is a flowchart of a parking space detection method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a parking space detection device according to an embodiment of the present invention;
description of reference numerals: a first vehicle space 1; a first geomagnetic device 2; a first radar device 3; and a control device 4.
Detailed Description
The embodiment of the invention provides a parking space detection method and a parking space detection device, solves the technical problems of inaccurate parking space state detection and high power consumption in the prior art, and achieves the technical effects of improving the accuracy rate of parking space state detection and low power consumption.
The technical scheme in the embodiment of the invention has the following overall structure:
the parking space detection method is applied to a parking space detection device, the parking space detection device comprises a first parking space, a first geomagnetic device, a first radar device and a control device, wherein the first geomagnetic device and the first radar device are arranged on the first parking space, the first geomagnetic device and the first radar device are in communication connection with the control device, and the parking space detection method comprises the following steps: the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information; judging whether the first state information changes or not; when the first state information changes, first output information is obtained according to a first judgment strategy; the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information; judging whether the second state information is changed or not; and when the second state information is changed, second output information is obtained according to a second judgment strategy. By the aid of the parking space detection method, the technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment of the present invention provides a parking space detection method, please refer to fig. 1 and 2, the parking space detection method is applied to a parking space detection device, the parking space detection device includes a first parking space 1, a first geomagnetic device 2, a first radar device 3, and a control device 4, wherein the first geomagnetic device 2 and the first radar device 3 are disposed on the first parking space 1, the first geomagnetic device 2 and the first radar device 3 are in communication connection with the control device 4, and the parking space detection method includes:
step S100: the first geomagnetic device 2 detects the state of the first parking space 1 at a first preset frequency to obtain first state information;
further, the preset frequency is: 3 times per minute.
Specifically, the parking space detection method is applied to a parking space detection device, the parking space detection device is applied to a parking lot, m parking spaces are arranged in the parking lot, m is larger than or equal to 1 and is a positive integer. Parking stall detection device includes m radar installations, m earth magnetism device and controlling means 4, sets up one on every parking stall radar installation and one earth magnetism device. The control device 4 is in communication connection with the m radar devices and the m geomagnetic devices. Control device 4 controls the start-up, the closing of m earth magnetism devices, m radar installations, receives the data that m earth magnetism devices, m radar installations obtained, and right data carry out calculation analysis, obtain the status information of m parking stalls.
Step S200: judging whether the first state information changes or not;
step S300: when the first state information changes, first output information is obtained according to a first judgment strategy;
specifically, the control device 4 compares first state information obtained by two adjacent detections, and determines whether the first state information has changed. When the first state information changes, the control device 4 determines whether a vehicle is located in the first parking space 1 according to a first determination strategy, and outputs first output information, where the first output information is the current state information of the first parking space 1 output by the control device 4. When the first state information is not changed, the steps S100-S200 are continuously performed.
Further, the first judgment policy includes: when the first state information is changed from no vehicle to vehicle, the first output information is vehicle;
specifically, when the first state information is changed from no vehicle to a vehicle, it is described that the first geomagnetic device 2 detects that a vehicle has just stopped in the first parking space 1, and the control device 4 directly outputs the state that the first parking space 1 is a vehicle, that is, the first output information is a vehicle.
Further, the first judgment policy further includes: when the first state information is changed from the vehicle-presence state to the vehicle-absence state, starting the first radar device 3 to detect the state of the first parking space 1, and obtaining third state information;
when the third state information indicates that a vehicle is present, the first output information indicates that a vehicle is present;
and when the third state information is no vehicle or covered, the first output information is no vehicle.
Specifically, when the first state information is changed from the presence of a vehicle to the absence of a vehicle, and the first geomagnetic device 2 detects that a vehicle has just exited the first parking space 1, the control device 4 activates the first radar device 3 to detect the state of the first parking space 1, calculates data detected by the first radar device 3, and obtains the third state information of the first parking space 1, in order to ensure that no vehicle exists in the first parking space 1.
The state information of the first parking space 1 detected by the first radar device 3 is divided into three types, namely, a vehicle is present, a vehicle is absent, and coverage is performed, wherein the coverage state is that the first radar device 3 cannot detect whether a vehicle is present in the first parking space 1. When the third state information indicates that a vehicle is in the first parking space 1, the first geomagnetic device 2 detects a fault, and the state information of the first parking space 1 is output as the vehicle, that is, the first output information is the vehicle. And when the third state information indicates that the parking space is empty or covered, the parking space is indicated to be empty, namely the first output information indicates that the parking space is empty.
In the embodiment of this application, when first geomagnetic device 2 detects first parking stall 1's state becomes no vehicle by having the car, starts first radar installations 3 is right first parking stall 1's state detects once more, and is right first parking stall 1's state is examined, avoids first geomagnetic device 2 detects the mistake, guarantees the accuracy of first parking stall 1 no vehicle state guarantees the accuracy of surplus parking stall quantity, and whether allow the vehicle to continue to get into for the parking area provides important foundation.
Step S400: the first radar device 3 detects the state of the first parking space 1 at a second preset frequency to obtain second state information;
step S500: judging whether the second state information is changed or not;
step S600: when the second state information changes, second output information is obtained according to a second judgment strategy;
further, the second preset frequency is 12 times/hour.
Specifically, the first radar device 3 detects the state of the first parking space 1 every 5 minutes, transmits the detected radar data to the control device 4, and the control device 4 performs calculation and analysis on the radar data to obtain state information of the first parking space 1, that is, second state information. The control device 4 determines whether the second state information obtained by two adjacent detections changes, and when the second state information changes, the control device 4 determines whether a vehicle is in the first parking space 1 by using a second determination strategy, and outputs second output information. When the second state information is not changed, the steps S400-S500 are continuously performed.
Steps S100 and S400 are performed simultaneously, without any order.
In this application embodiment, first radar installations 3 adopts different fixed frequency right with first earth magnetism device 2 the state of first parking stall 1 detects, avoids first earth magnetism device 2 to detect the inaccurate 1 state error in first parking stall that causes, improves the accuracy that the parking stall state detected.
Further, the first preset frequency is greater than the second preset frequency.
Particularly, the consumption of first radar apparatus is greater than the consumption of first earth magnetism device, will first radar apparatus's detection frequency sets up to be less than first earth magnetism device's detection frequency reaches when guaranteeing parking stall state detection accuracy degree, reduces the technological effect of parking stall detection device's consumption.
Further, the second judgment policy includes: and when the second state information indicates that the vehicle is not available and the vehicle is available, the second output information indicates that the vehicle is available.
Specifically, when the second state information indicates that there is a vehicle in the first parking space 1, the control device 4 directly outputs the state information of the first parking space 1 as the presence of the vehicle, that is, the second output information indicates that there is a vehicle.
Further, the second judgment policy further includes: when the second state information indicates that the parking space is changed into a parking space without a car or covered by the car, starting the first geomagnetic device 2 to detect the state of the parking space, and obtaining fourth state information;
when the fourth state information indicates that a vehicle is present, the second output information indicates that a vehicle is present;
and when the fourth state information indicates that the vehicle is not available, the second output information indicates that the vehicle is available.
Specifically, when the second state information indicates that there is a vehicle and there is no vehicle or the vehicle is covered, the control device 4 starts the first geomagnetic device 2 to detect the state of the first vehicle space 1, and calculates data detected by the first geomagnetic device 2 to obtain the fourth state information of the first vehicle space 1. When the fourth state information indicates that a vehicle is present, the control device 4 outputs the state information of the first parking space 1 as a vehicle, that is, the second output information indicates that a vehicle is present; when the fourth status information indicates that the vehicle is not present, the control device 4 outputs the status information of the first parking space 1 as no vehicle, that is, the second output information indicates that the vehicle is not present.
In this application embodiment, when first radar installation 3 detects first parking stall 1's state becomes no vehicle by having the car, starts first ground magnetic device 2 is right first parking stall 1's state detects once more, avoids first radar installation 3 detects the mistake, guarantees first parking stall 1 does not have the accuracy of car state, ensures the accuracy of surplus parking stall quantity, provides important basis for whether the parking area allows the vehicle to continue to get into.
The method that this application embodiment adopted radar device and earth magnetism device to check each other to detect has improved the accuracy that the parking stall state detected, and this application embodiment does not increase first earth magnetism device 2's detection frequency simultaneously, has reached the technological effect of low-power consumption.
Further, first earth magnetism device 2 first radar installations 3 sets up first parking stall 1's center has reached the improvement first earth magnetism device 2, first radar installations 3 are right the accuracy that 1 state in first parking stall detected.
Furthermore, the first geomagnetic device 2 and the first radar device 3 are in wireless communication connection with the control device 4, so that the technical effect of reducing wiring in the parking lot is achieved.
Example two
The embodiment of the present invention further provides a parking space detection device, which executes the method according to the first embodiment, wherein the parking space detection device is applied to a parking lot, the parking lot includes m parking spaces, and the detection device includes:
m radar devices;
the geomagnetic devices are fixedly arranged on the parking spaces, and one radar device and one geomagnetic device are fixedly arranged on each parking space;
the m geomagnetic devices and the m radar devices are in communication connection with the control device;
the geomagnetic device transmits detected geomagnetic data to the control device, the radar device transmits detected radar data to the control device, and the control device obtains state information of the parking space according to the geomagnetic data and the radar data;
the control device starts or stops the geomagnetic device and the radar device;
m≥1。
various changes and specific examples of a parking space detection method in the first embodiment are also applicable to a parking space detection device in the present embodiment, and through the foregoing detailed description of a parking space detection method, a person skilled in the art can clearly know an implementation method of a parking space detection device in the present embodiment, so for the sake of brevity of the description, detailed description is not repeated here.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
1. the embodiment of the invention provides a parking space detection device, wherein the parking space detection method is applied to a parking space detection device, the parking space detection device comprises a first parking space, a first geomagnetic device, a first radar device and a control device, the first geomagnetic device and the first radar device are arranged on the first parking space, the first geomagnetic device and the first radar device are in communication connection with the control device, and the parking space detection method comprises the following steps: the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information; judging whether the first state information changes or not; when the first state information changes, first output information is obtained according to a first judgment strategy; the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information; judging whether the second state information is changed or not; and when the second state information is changed, second output information is obtained according to a second judgment strategy. The technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
2. In the embodiment of the invention, when the first state information is changed from the vehicle-presence state to the vehicle-absence state, the first radar device is started to detect the state of the first parking space, so as to obtain third state information; when the third state information indicates that a vehicle is present, the first output information indicates that a vehicle is present; and when the third state information is no vehicle or covered, the first output information is no vehicle. Avoid first ground magnetic device detects the mistake, guarantees the accuracy of first parking stall no car state ensures the accuracy of surplus parking stall quantity, provides important basis for whether the parking area allows the vehicle to continue to get into.
3. The embodiment of the invention also provides a parking space detection device, which executes the parking space detection method, the parking space detection device is applied to a parking lot, the parking lot comprises m parking spaces, and the detection device comprises: m radar devices; the geomagnetic devices are fixedly arranged on the parking spaces, and one radar device and one geomagnetic device are fixedly arranged on each parking space; the m geomagnetic devices and the m radar devices are in communication connection with the control device; the geomagnetic device transmits detected geomagnetic data to the control device, the radar device transmits detected radar data to the control device, and the control device obtains state information of the parking space according to the geomagnetic data and the radar data; the control device starts or stops the geomagnetic device and the radar device; m is more than or equal to 1 and is a positive integer. The technical problems of inaccurate parking space state detection and high power consumption in the prior art are solved, and the technical effects of improving the parking space state detection accuracy and low power consumption are achieved.
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 modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments 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 encompass such modifications and variations.
Claims (9)
1. The utility model provides a parking stall detection method, its characterized in that, parking stall detection method is applied to a parking stall detection device, parking stall detection device includes first parking stall, first earth magnetism device, first radar installations, controlling means, wherein, first earth magnetism device, first radar installations set up on the first parking stall, first earth magnetism device, first radar installations with controlling means communication connection, parking stall detection method includes:
the first geomagnetic device detects the state of the first parking space at a first preset frequency to obtain first state information;
judging whether the first state information changes or not;
when the first state information changes, first output information is obtained according to a first judgment strategy;
the first radar device detects the state of the first parking space at a second preset frequency to obtain second state information;
judging whether the second state information is changed or not;
and when the second state information is changed, second output information is obtained according to a second judgment strategy.
2. The parking space detection method according to claim 1, wherein the first judgment strategy comprises:
when the first state information is changed from no vehicle to vehicle, the first output information is vehicle.
3. The parking space detection method according to claim 1, wherein the first judgment strategy further comprises:
when the first state information is changed from the vehicle-presence state to the vehicle-absence state, starting the first radar device to detect the state of the first parking space, and obtaining third state information;
when the third state information indicates that a vehicle is present, the first output information indicates that a vehicle is present;
and when the third state information is no vehicle or covered, the first output information is no vehicle.
4. The parking space detection method according to claim 1, wherein the second judgment strategy comprises:
and when the second state information indicates that the vehicle is not available and the vehicle is available, the second output information indicates that the vehicle is available.
5. The parking space detection method according to claim 1, wherein the second judgment strategy further comprises:
when the second state information indicates that the vehicle is changed into a non-vehicle state or a covered state, starting the first geomagnetic device to detect the state of the first parking space, and obtaining fourth state information;
when the fourth state information indicates that a vehicle is present, the second output information indicates that a vehicle is present;
and when the fourth state information indicates that the vehicle is not available, the second output information indicates that the vehicle is available.
6. The parking space detection method according to claim 1, wherein the first preset frequency is greater than the second preset frequency.
7. The parking space detection method according to claim 1, wherein the first geomagnetic device and the first radar device are disposed at a center of the first parking space.
8. The parking space detection method according to claim 1, wherein the first geomagnetic device and the first radar device are in wireless communication connection with the control device.
9. A parking space detection device for performing the parking space detection method according to any one of claims 1 to 8, wherein the parking space detection device is applied to a parking lot, the parking lot includes m parking spaces, and the detection device includes:
m radar devices;
the geomagnetic devices are fixedly arranged on the parking spaces, and one radar device and one geomagnetic device are fixedly arranged on each parking space;
the m geomagnetic devices and the m radar devices are in communication connection with the control device;
the geomagnetic device transmits detected geomagnetic data to the control device, the radar device transmits detected radar data to the control device, and the control device obtains state information of the parking space according to the geomagnetic data and the radar data;
the control device starts or stops the geomagnetic device and the radar device;
m is more than or equal to 1 and is a positive integer.
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| CN111899527A (en) * | 2020-08-08 | 2020-11-06 | 广州巨时信息科技股份有限公司 | Composite vehicle detection algorithm |
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