Electric vehicle parking control device, system and platform based on optical path sensor

Abstract

This application provides an electric vehicle parking control device, system, and platform based on optical path sensors, including left and right rear wheel limiters to determine the standard parking position of the electric vehicle; an optical path sensor to detect the distance of an object, wherein the optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line by a preset distance; a controller configured to: detect the entry of an object, determine whether the object is the target electric vehicle, and if so, keep the optical path sensor running during the process of the electric vehicle entering the target charging parking space; detect whether the reversing trajectory of the target electric vehicle exceeds the left and right rear wheel limiters, and if it exceeds either of the left and right rear wheel limiters, send a reverse reversing reminder to the electric vehicle, ultimately achieving precise parking and improving the charging efficiency of the electric vehicle.

Description

Technical Field

[0001] This application relates to the field of electric vehicle parking technology, and in particular to electric vehicle parking control devices, systems and platforms based on optical path sensors. Background Technology

[0002] With the rapid development of the electric vehicle industry, my country attaches great importance to electric vehicle charging technology and has carried out research and application of charging technologies such as conductive charging, wireless charging, and battery swapping. Compared with traditional wired charging methods, Wireless Power Transfer (WPT) technology does not require a physical connection, thus avoiding wire loss and cable faults in traditional wired transmission, making power transmission more convenient and flexible. WPT systems can be used for wireless charging of electric vehicles, making the charging process more convenient and seamless.

[0003] Electric vehicles can be flexibly charged at multiple locations such as parking lots and charging stations via wireless power transfer systems, eliminating the need for physical plug connections and improving the convenience and user experience of electric vehicles. Therefore, WPT technology boasts advantages such as strong environmental adaptability, high safety, and flexibility, and is widely used in transportation and other fields.

[0004] However, WPT technology is actually a short-distance charging technology. Inductive charging allows energy to be transferred between the transmitter and receiver coils over a short distance. When charging a car in a parking space, the pickup and transmitter coils need to be coupled, requiring the inductive system to have the coils close together and aligned; typically, the device is in direct contact with the charging pad. When misalignment occurs between the pickup and transmitter coils, the coupling between the coils decreases, causing problems such as reduced system output power and transmission efficiency.

[0005] Therefore, this charging method requires high accuracy in the parking position of the car. How to guide electric vehicles to park accurately is the key to improving the efficiency and power of the wireless charging system for electric vehicles. Summary of the Invention

[0006] This application provides an electric vehicle parking control device based on an optical path sensor, which guides the real-time adjustment of the electric vehicle's position to reduce the offset between the transmitting coil of the wireless charging device in the parking lot and the picking coil of the electric vehicle, thereby improving charging efficiency by improving parking accuracy.

[0007] In a first aspect, this application provides an electric vehicle parking control device based on optical path sensors, the method comprising:

[0008] The left and right rear wheel limiters are configured to determine the standard parking position of the electric vehicle. The left and right rear wheel limiters are respectively installed on the left and right sides of the standard parking position in the target charging space, which is surrounded by solid lines. The charging efficiency is highest when the electric vehicle is in the standard parking position.

[0009] An optical path sensor is configured to detect the distance to an object, wherein the optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance;

[0010] A communicator is configured to establish a communication connection with the electric vehicle;

[0011] The controller is configured as follows:

[0012] Upon detecting the entry of an object, the system determines whether the object is the target electric vehicle based on the level change output by the optical path sensor.

[0013] If the object is determined to be the target electric vehicle, the optical path sensor is kept running as the electric vehicle drives into the target charging parking space.

[0014] The system detects whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing reminder is sent to the electric vehicle.

[0015] Optionally, during the process of the electric vehicle entering the target charging parking space, the optical path sensor is controlled to rotate clockwise so that the illumination line always follows the rear of the electric vehicle and remains parallel to the front solid line of the target charging parking space.

[0016] Optionally, the electric vehicle parking control device is further configured to:

[0017] When the optical sensor does not detect the entry of an object, the controller is in standby mode;

[0018] The controller is triggered to start running once the optical path sensor detects the entry of an object, in order to determine whether the object is the target electric vehicle based on the level change output by the optical path sensor.

[0019] Optionally, the optical path sensor includes M rows of lights spaced apart, with a spacing of c between each row of lights, and the optical path sensor is further configured as follows:

[0020] When no object enters, the light from each row of lights reaches the ground at the same distance, and the output level is high.

[0021] If the entry of an object is detected, the array of lights illuminates the object, shortening the light path, and the output level is low.

[0022] If n rows of lights output a low level, the width of the object entering the illumination range of the rows of lights is calculated as l = nc, where the error is the width c of one row of lights interval.

[0023] Optionally, the controller, upon detecting the entry of an object and determining whether the object is a target electric vehicle based on the level change output by the optical path sensor, is further configured to:

[0024] If the width of the detected object is smaller than the evaluation width of the electric vehicle, then the object is determined not to be the target electric vehicle.

[0025] Furthermore, if the detected object triggers the light array sensor to switch from high level to low level sequentially from the first direction or the second direction, and then returns to high level within a preset time, the object is determined to be a passing object.

[0026] Optionally, the optical path sensor includes a left optical path sub-sensor and a right optical path sub-sensor, with the M rows of lights symmetrically distributed in the left and right optical path sensors.

[0027] Optionally, the controller performs the action of detecting whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter.

[0028] If the vehicle exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing warning is sent to the electric vehicle, further configured as follows:

[0029] During the process of the electric vehicle entering the target charging parking space, the number of low-level signals output by the left optical path sensor and the right optical path sensor are compared.

[0030] If the number of low-level signals from the left optical path sensor is greater than the number of low-level signals from the right optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the left, then a prompt message to turn the steering wheel to the right is sent to the target electric vehicle.

[0031] If the number of low-level signals from the right optical path sensor is greater than the number of low-level signals from the left optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the right, then a prompt message to turn the steering wheel to the left is sent to the target electric vehicle.

[0032] If the number of low-level signals of the left optical path sensor is equal to the number of low-level signals of the right optical path sensor, it is determined that the reversing trajectory of the target electric vehicle has not exceeded the left and right rear wheel limiters, and a prompt message to maintain the current reversing direction is sent to the target electric vehicle.

[0033] Secondly, this application provides an electric vehicle parking control system based on optical path sensors, comprising:

[0034] A limiting module is configured to determine the standard parking position of an electric vehicle. The limiting module includes a left rear wheel limiter and a right rear wheel limiter, which are installed on the left and right sides of the standard parking position in the target charging space. The target charging space is surrounded by a solid line. The charging efficiency is highest when the electric vehicle is in the standard parking position.

[0035] An optical path sensing module is configured to detect the distance to an object, wherein the optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance;

[0036] A communication module is configured to establish a communication connection with the electric vehicle;

[0037] The target electric vehicle determination module is configured to detect the entry of an object and determine whether the object is a target electric vehicle based on the level change output by the optical path sensor.

[0038] The reversing reminder module is configured to, if the object is determined to be a target electric vehicle, maintain the operation of the optical path sensor during the process of the electric vehicle entering the target charging parking space; and detect whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, send a reverse reversing reminder to the electric vehicle.

[0039] Optionally, the optical path sensing module is further configured as follows:

[0040] The optical path sensing module includes M rows of lights arranged at intervals, with a spacing of c between each row of lights;

[0041] When no object enters, the light from each row of lights reaches the ground at the same distance, and the output level is high.

[0042] If the entry of an object is detected, the array of lights illuminates the object, shortening the light path, and the output level is low.

[0043] If n rows of lights output a low level, the width of the object entering the illumination range of the rows of lights is calculated as l = nc, where the error is the width c of one row of lights interval.

[0044] Thirdly, this application provides an electric vehicle parking control platform based on optical path sensors, characterized in that the electric vehicle parking control platform based on optical path sensors includes the electric vehicle parking control device based on optical path sensors described in any of the preceding claims.

[0045] This application provides an electric vehicle parking control device based on an optical path sensor, including a left rear wheel limiter and a right rear wheel limiter to determine the standard parking position of the electric vehicle. The left and right rear wheel limiters are respectively installed on the left and right sides of the standard parking position in the target charging space, which is surrounded by a solid line. Charging efficiency is highest when the electric vehicle is in the standard parking position. An optical path sensor is also provided to detect the distance to the target charging space. The optical path sensor is installed directly above the solid line behind the target charging space, and its illumination line on the ground is parallel to and extends beyond the solid line in front of the target charging space by a preset distance. The system includes: a communicator for establishing a communication connection with the electric vehicle; and a controller configured to: detect the entry of an object and determine whether the object is a target electric vehicle based on the level change output by the optical path sensor; if the object is determined to be a target electric vehicle, maintain the operation of the optical path sensor during the process of the electric vehicle entering the target charging parking space; detect whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter; if it exceeds either the left rear wheel limiter or the right rear wheel limiter, send a reverse reversing reminder to the electric vehicle, ultimately achieving precise parking and improving the charging efficiency of the electric vehicle. Attached Figure Description

[0046] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0047] Figure 1 A schematic diagram of the architecture of an electric vehicle parking control device based on an optical path sensor, provided for an exemplary embodiment of this application;

[0048] Figure 2 A schematic diagram of a scenario for an electric vehicle parking control device provided as another exemplary embodiment of this application;

[0049] Figure 3 A schematic diagram of the operation of an optical path sensor provided in an exemplary embodiment of this application;

[0050] Figure 4A schematic diagram of the operation of an electric vehicle parking control device provided as another exemplary embodiment of this application;

[0051] Figure 5 A schematic diagram of the operation of an electric vehicle parking control device provided as another exemplary embodiment of this application;

[0052] Figure 6 A schematic diagram of the operation of an electric vehicle parking control device provided as another exemplary embodiment of this application;

[0053] Figure 7 A schematic diagram of the operation of an electric vehicle parking control device provided as another exemplary embodiment of this application;

[0054] Figure 8 This is a schematic diagram of an electric vehicle parking control system based on an optical path sensor, provided as an exemplary embodiment of this application. Detailed Implementation

[0055] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0056] Figure 1 This is a structural diagram of an electric vehicle parking control device based on an optical path sensor, provided as an exemplary embodiment of this application. Figure 1 As shown, an electric vehicle parking control device 10 based on an optical path sensor provided in this embodiment of the invention specifically includes:

[0057] The left rear wheel limiter 101 and the right rear wheel limiter 102 are configured to: determine the standard parking position of the electric vehicle, wherein the left rear wheel limiter and the right rear wheel limiter are installed on the left and right sides of the standard parking position in the target charging space, and the target charging space is surrounded by solid lines. When the electric vehicle is in the standard parking position, the charging efficiency is the highest.

[0058] The optical path sensor 103 is configured to detect the distance to the target object, wherein the optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance.

[0059] Communicator 104 is configured to establish a communication connection with the electric vehicle;

[0060] Controller 105 is configured as follows:

[0061] Upon detecting the entry of an object, the system determines whether the object is the target electric vehicle based on the level change output by the optical path sensor.

[0062] If the object is determined to be the target electric vehicle, the optical path sensor is kept running as the electric vehicle drives into the target charging parking space.

[0063] The system detects whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing reminder is sent to the electric vehicle.

[0064] Specifically, the communicator 104 is a component used to communicate with external devices or servers according to various communication protocol types. For example, the communicator may include at least one of the following: a Wi-Fi module, a Bluetooth module, a wired Ethernet module, other network communication protocol chips or near-field communication protocol chips, and an infrared receiver. The electric vehicle parking control device 10 based on optical path sensors can establish the transmission and reception of control signals and data signals with the electric vehicle 01 or the server 03 through the communicator 104.

[0065] The controller 105 controls the operation of the electric vehicle parking control device 10 and responds to user operations through various software control programs stored in the memory. The controller 105 controls the overall operation of the electric vehicle parking control device 10. In some embodiments, the controller includes at least one of a central processing unit (CPU), RAM (Random Access Memory), ROM (Read-Only Memory), a first to an nth interface for input / output, and a communication bus.

[0066] In some embodiments, the electric vehicle parking control device based on optical path sensors, such as Figure 2 As shown, the target charging parking space is surrounded by solid lines, and the standard parking position is located in the middle of the target charging parking space, with a width smaller than that of the target charging parking space. When the electric vehicle is in the standard parking position, a wireless charging device 201 is positioned directly below its rear wheels, maximizing charging efficiency. A left rear wheel limiter 101 and a right rear wheel limiter 102 are respectively located on either side of the wireless charging device coil 201. When both rear wheels of the electric vehicle are within the limiter range, the electric vehicle parking control device based on optical path sensors indicates that the charging position is in place, thus instructing the driver to stop reversing and the electric vehicle enters the charging state.

[0067] like Figure 2As shown, a distance-measuring optical sensor, such as a laser sensor or infrared sensor, is installed directly above the rear solid line of the target parking space. The illumination line of this optical sensor on the ground is parallel to the front solid line of the parking space, and its initial position is as follows: Figure 2 As shown, the distance d beyond the solid line in front of the target charging parking space can be adjusted according to the actual application scenario.

[0068] In some embodiments, such as Figure 3 As shown, the controller 105 is further configured to control the optical path sensor 103 to rotate clockwise during the process of the electric vehicle driving into the target charging parking space, so that the illumination line, which always follows the tail of the electric vehicle, remains parallel to the front solid line of the target charging parking space.

[0069] In some embodiments, such as Figure 4 As shown, the optical path sensor includes M rows of lights spaced at intervals, with a spacing of c between each row of lights. When no object enters, the light rays from each row of lights reach the ground at the same distance, and the output level is high level 1. If the entry of an object is detected, the light rays from the row of lights illuminate the object, shortening the optical path, and the output level is low level 0. If n rows of lights output low levels, the width of the object entering the illumination range of the row of lights is calculated as l = nc, where the error is the width c of one row of lights.

[0070] In some embodiments, in order to reduce the energy consumption of the electric vehicle parking control device 10, the controller is in standby mode when the optical path sensor does not detect the entry of an object; until the optical path sensor detects the entry of an object, the controller is triggered to start running, so as to determine whether the object is the target electric vehicle based on the level change output by the optical path sensor. That is to say, as long as an object is detected to come into contact with the illumination line emitted by the optical path sensor, it will be captured by the electric vehicle parking control device 10, triggering the start of the entire device.

[0071] In some embodiments, the controller 105 performs the action of detecting the entry of an object and determining whether the object is a target electric vehicle based on the level change output by the optical path sensor 103, and is further configured to:

[0072] If the width of the detected object is smaller than the evaluation width of the electric vehicle, then the object is determined not to be the target electric vehicle.

[0073] Furthermore, if the detected object triggers the light array sensor to switch from high level to low level sequentially from the first direction or the second direction, and then returns to high level within a preset time, the object is determined to be a passing object.

[0074] Specifically, since the initial illumination line of the optical path sensor 103 is outside the solid line in front of the charging parking space, and is a distance of length d from that solid line, it exceeds the range of the charging parking space. Therefore, interference from vehicles and people outside the parking line must be considered to prevent the parking lights from misjudging passing people and vehicles. When an object is captured by the optical path sensor, the controller 105 first determines whether the object entering the illumination line range of the parking lights is the target electric vehicle preparing to park for wireless charging. If not, the response stops; if so, subsequent steps are performed.

[0075] The estimated width of a typical electric vehicle is greater than a certain value, such as 1.2m, but the width of a person is far greater than this. Therefore, 1.2m can be used as a boundary. In the process of judging distances using LED arrays, the portion with the larger measured distance is given a high level by logic, considered as 1, and the portion with the smaller distance is given a low level by logic, considered as 0. The digital signal is then sent to the controller, which makes a decision based on this, determining the number of LED arrays to send a low level signal. Based on the spacing of each optical distance sensor in the LED array, the width of the shorter distance can be roughly estimated. For example... Figure 5 As shown. For example, by counting the number of LEDs whose light path to the object is shortened and whose output level is low (0), the width of the object is calculated. If the width is less than 1.2m, it is determined that the object is not the target electric vehicle. After detecting that the object is not the target electric vehicle, the controller switches back to standby mode.

[0076] For passing vehicles, their direction can be determined for exclusion. Passing vehicles travel parallel to the solid line in front of the charging space, while parked vehicles travel perpendicular to the solid line in front of the charging space towards the wireless charging direction. Therefore, if a vehicle is determined to be parallel to the solid line in front of the charging space, it is determined that the object is not the target electric vehicle, and the controller switches back to standby mode after detecting that the object is not the target electric vehicle. If a vehicle is determined to be perpendicular to the solid line in front of the charging space towards the wireless charging direction, the system initiates a response.

[0077] like Figure 6 As shown, when a vehicle passes by from left to right or from right to left, the leftmost or rightmost optical ranging sensor will first output a low level. Once the entire vehicle enters the illumination range of the LED lights, the leftmost or rightmost optical ranging sensor will return to a high level. Taking the direction of the passing vehicle from left to right as the first direction, the binary numbers generated by each optical sensor are imported into the controller. If the rising edge is from the leftmost optical ranging sensor and the binary number at the next moment is the binary number at the previous moment divided by 2, it indicates that the vehicle is traveling from left to right. This indicates that the object is not the target electric vehicle, and the controller switches back to standby mode after detecting that the object is not the target electric vehicle.

[0078] Similarly, taking the direction of passing vehicles traveling from right to left as the second direction, if the rising edge is the rightmost optical ranging sensor and the binary number at the next moment is the binary number at the previous moment multiplied by 2, it is determined that the object is not the target electric vehicle. After the controller detects that the object is not the target electric vehicle, it switches back to standby mode.

[0079] For example, assuming a vehicle is three times the width of a light ranging sensor, and it passes by from left to right, the schematic diagram is as follows. Figure 6 As shown. In this way, the problem of passing vehicles accidentally activating the controller is solved.

[0080] In some embodiments, the optical path sensor includes a left optical path sensor and a right optical path sensor, and the M rows of lights are symmetrically distributed in the left optical path sensor and the right optical path sensor.

[0081] Furthermore, such as Figure 7 As shown, the controller detects whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing reminder is sent to the electric vehicle. This is further configured to:

[0082] During the process of the electric vehicle entering the target charging parking space, the number of low-level signals output by the left optical path sensor and the right optical path sensor are compared.

[0083] If the number of low-level signals from the left optical path sensor is greater than the number of low-level signals from the right optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the left, then a prompt message to turn the steering wheel to the right is sent to the target electric vehicle.

[0084] If the number of low-level signals from the right optical path sensor is greater than the number of low-level signals from the left optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the right, then a prompt message to turn the steering wheel to the left is sent to the target electric vehicle.

[0085] If the number of low-level signals of the left optical path sensor is equal to the number of low-level signals of the right optical path sensor, it is determined that the reversing trajectory of the target electric vehicle has not exceeded the left and right rear wheel limiters, and a prompt message to maintain the current reversing direction is sent to the target electric vehicle.

[0086] Specifically, such as Figure 7As shown, the turn signals are divided into left and right sections. The system compares the number of low-level signals (0s) on the left with the number of low-level signals on the right. If the number of low-level signals on the left is greater than that on the right, it indicates the rear of the vehicle is veering to the left, and the system prompts the driver to turn right. If the number of low-level signals on the right is greater than that on the left, it indicates the rear of the vehicle is veering to the right, and the system prompts the driver to turn left. If the number of low-level signals on both sides is equal, the system prompts the driver to maintain the current position and continue reversing. After making the judgment, the turn signals quickly rotate clockwise. Figure 3 As shown. The process continues until all binary numbers are 1, meaning the illumination line has just left the rear of the vehicle. Then, the position of the rear of the vehicle at the next moment is determined, and the above process is repeated. In this way, the goal of guiding electric vehicles to park and charge is achieved.

[0087] In other embodiments, after an electric vehicle is detected to have entered a parking space, a charging space that matches the charging system of the electric vehicle is selected, and the usage status of the charging space is obtained, including whether it is vacant or occupied.

[0088] In some embodiments of this application, the parking location may be a parking lot, a charging station, or a garage.

[0089] All devices and parking areas using WPT (Wireless Charging Technology) are managed uniformly on the wireless charging platform. This platform can obtain vehicle location information through vehicle-to-everything (V2X) networks, GPS (Global Positioning System) data, onboard cameras, or ultrasonic radar.

[0090] In actual implementation, the platform of this application maintains parking space information for each charging space. This parking space information may include original parking space information such as usage status and location. Once an electric vehicle establishes a connection with the wireless charging platform, the platform will filter for charging spaces that match the electric vehicle's charging system and obtain the usage status of the charging spaces, which includes whether they are idle or occupied.

[0091] In other embodiments, a barrier gate installed at the vehicle entrance of the parking lot and charging station can be used to initiate interconnection with the wireless charging platform when a car is detected passing through the barrier gate. Of course, not all parking spaces in a parking lot may be charging spaces; a regular parking space becomes a charging space after a charging device is installed, and the charging space immediately reports to the wireless charging platform once powered on. The wireless charging platform maintains information on all charging spaces in a given parking lot or charging station.

[0092] In addition, intelligent detection equipment, such as image detectors, is installed at the entrance gate. When a vehicle enters the intelligent facility entrance, the image detector identifies the license plate number of the electric vehicle using intelligent recognition technology, and then uploads the license plate number to the national vehicle management system. The national vehicle management system then retrieves the registered vehicle model. After retrieving the vehicle model, it searches a table of vehicle model information stored in memory. This table contains the corresponding specifications of the vehicle, including but not limited to exterior information such as the vehicle's length and width, as well as internal module information such as the engine and charging system. Therefore, the length and width information of the electric vehicle can be obtained based on the vehicle model.

[0093] In some embodiments, since the internal module specifications of each electric vehicle are different, the wireless charging platform needs to select charging spaces that match the charging system of the electric vehicle based on the vehicle model.

[0094] When an available charging space is detected in the parking lot, the parking space map information of the preset parking lot and the information of the available charging spaces are sent to the electric vehicle so that the target charging space can be selected.

[0095] When the system detects that there is an available charging space in the parking lot that matches the electric vehicle charging system, the wireless charging platform sends the parking space map information and the information of the available charging spaces to the electric vehicle.

[0096] The information for available charging spaces includes the space number and its location on the parking map. This parking map information is displayed on the electric vehicle's screen via a map navigation system, and the locations of available charging spaces are marked on the map for easy searching and selection by electric vehicle users.

[0097] Figure 7 This is a schematic diagram illustrating the structure of an electric vehicle parking control system based on an optical path sensor, provided as an exemplary embodiment of this application. The electric vehicle parking control system based on an optical path sensor provided in this embodiment can execute the processing flow provided by an electric vehicle parking control device and system embodiment based on an optical path sensor. For example... Figure 7 As shown, this application provides an electric vehicle parking control system 80 based on optical path sensors, comprising:

[0098] The limiting module 801 is configured to determine the standard parking position of an electric vehicle. The limiting module includes a left rear wheel limiter and a right rear wheel limiter, which are installed on the left and right sides of the standard parking position in the target charging space. The target charging space is surrounded by solid lines. The charging efficiency is highest when the electric vehicle is in the standard parking position.

[0099] The optical path sensing module 802 is configured to detect the distance to the target object. The optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance.

[0100] Communication module 803 is configured to establish a communication connection with the electric vehicle;

[0101] The target electric vehicle determination module 804 is configured to detect the entry of an object and determine whether the object is a target electric vehicle based on the level change output by the optical path sensor.

[0102] The reversing reminder module 805 is configured to, if the object is determined to be a target electric vehicle, maintain the operation of the optical path sensor during the process of the electric vehicle entering the target charging parking space; and detect whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, send a reverse reversing reminder to the electric vehicle.

[0103] This application also provides an electric vehicle parking control platform based on optical path sensors, which includes the electric vehicle parking control device based on optical path sensors as described in any of the above claims.

[0104] The application scenarios described in this application are for the purpose of more clearly illustrating the technical solutions of this application, and do not constitute a limitation on the technical solutions provided in this application. As those skilled in the art will know, with the emergence of new application scenarios, the technical solutions provided in this application are also applicable to similar technical problems.

[0105] Those skilled in the art will understand that various aspects of this application can be implemented as a system, method, or program product. Therefore, various aspects of this application can be specifically implemented in the following forms: a completely hardware implementation, a completely software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, collectively referred to herein as a "circuit," "module," or "system."

[0106] In some possible implementations, the electronic device according to this application may include at least one processor and at least one memory. The memory stores program code that, when executed by the processor, causes the processor to perform the operational data management methods according to the various exemplary embodiments of this application described above. For example, the processor may perform steps such as those in the operational data management method.

[0107] It should be noted that although several units or sub-units of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided and embodied by multiple units.

[0108] Furthermore, although the operations of the method of this application are described in a specific order in the accompanying drawings, this does not require or imply that these operations must be performed in that specific order, or that all the operations shown must be performed to achieve the desired result. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step, and / or one step may be broken down into multiple steps.

[0109] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can 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, etc.) containing computer-usable program code.

[0110] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable image scaling device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable image scaling device, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0111] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable image scaling device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0112] These computer program instructions can also be loaded onto a computer or other programmable image scaling device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable device for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0113] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0114] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. An electric vehicle parking control device based on optical path sensors, characterized in that, include: The left and right rear wheel limiters are configured to determine the standard parking position of the electric vehicle. The left and right rear wheel limiters are respectively installed on the left and right sides of the standard parking position in the target charging space, which is surrounded by solid lines. The charging efficiency is highest when the electric vehicle is in the standard parking position. An optical path sensor is configured to detect the distance to an object, wherein the optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance; A communicator is configured to establish a communication connection with the electric vehicle; The controller is configured as follows: Upon detecting the entry of an object, the system determines whether the object is the target electric vehicle based on the level change output by the optical path sensor. If the object is determined to be the target electric vehicle, the optical path sensor is kept running as the electric vehicle drives into the target charging parking space. The system detects whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing reminder is sent to the electric vehicle. During the process of the electric vehicle driving into the target charging parking space, the optical path sensor is controlled to rotate clockwise so that the illumination line always follows the rear of the electric vehicle and remains parallel to the front solid line of the target charging parking space.

2. The electric vehicle parking control device based on optical path sensors according to claim 1, characterized in that, The electric vehicle parking control device is further configured to: When the optical sensor does not detect the entry of an object, the controller is in standby mode; The controller is triggered to start running once the optical path sensor detects the entry of an object, in order to determine whether the object is the target electric vehicle based on the level change output by the optical path sensor.

3. The electric vehicle parking control device based on optical path sensors according to claim 2, characterized in that, The optical path sensor includes M rows of lights arranged at intervals, with a spacing of c between each row of lights. The optical path sensor is further configured as follows: When no object enters, the light from each row of lights reaches the ground at the same distance, and the output level is high. If the entry of an object is detected, the array of lights illuminates the object, shortening the light path, and the output level is low. If n rows of lights output a low level, the width of the object entering the illumination range of the rows of lights is calculated as l = nc, where the error is the width c of one row of lights interval.

4. The electric vehicle parking control device based on optical path sensors according to claim 3, characterized in that, The controller, upon detecting the entry of an object, determines whether the object is a target electric vehicle based on the level change output by the optical path sensor, and is further configured to: If the width of the detected object is smaller than the evaluation width of the electric vehicle, then the object is determined not to be the target electric vehicle. Furthermore, if the detected object triggers the light array sensor to switch from high level to low level sequentially from the first direction or the second direction, and then returns to high level within a preset time, the object is determined to be a passing object.

5. The electric vehicle parking control device based on optical path sensors according to claim 4, characterized in that, The optical path sensor includes a left optical path sensor and a right optical path sensor, and the M rows of lights are symmetrically distributed in the left optical path sensor and the right optical path sensor.

6. The electric vehicle parking control device based on optical path sensors according to claim 5, characterized in that, The controller performs a function to detect whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If the vehicle exceeds either the left rear wheel limiter or the right rear wheel limiter, a reverse reversing warning is sent to the electric vehicle, further configured as follows: During the process of the electric vehicle entering the target charging parking space, the number of low-level signals output by the left optical path sensor and the right optical path sensor are compared. If the number of low-level signals from the left optical path sensor is greater than the number of low-level signals from the right optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the left, then a prompt message to turn the steering wheel to the right is sent to the target electric vehicle. If the number of low-level signals from the right optical path sensor is greater than the number of low-level signals from the left optical path sensor, and it is determined that the rear of the target electric vehicle is deviated to the right, then a prompt message to turn the steering wheel to the left is sent to the target electric vehicle. If the number of low-level signals of the left optical path sensor is equal to the number of low-level signals of the right optical path sensor, it is determined that the reversing trajectory of the target electric vehicle has not exceeded the left and right rear wheel limiters, and a prompt message to maintain the current reversing direction is sent to the target electric vehicle.

7. An electric vehicle parking control system based on optical path sensors, characterized in that, include: A limiting module is configured to determine the standard parking position of an electric vehicle. The limiting module includes a left rear wheel limiter and a right rear wheel limiter, which are installed on the left and right sides of the standard parking position in the target charging space. The target charging space is surrounded by a solid line. The charging efficiency is highest when the electric vehicle is in the standard parking position. An optical path sensing module is configured to detect the distance to an object. The optical path sensor is installed directly above the solid line behind the target charging parking space, and the illumination line on the ground is parallel to the solid line in front of the target charging parking space and extends beyond the solid line in front by a preset distance. During the process of the electric vehicle entering the target charging parking space, the optical path sensor is controlled to rotate clockwise so that the illumination line always follows the rear of the electric vehicle and remains parallel to the solid line in front of the target charging parking space. A communication module is configured to establish a communication connection with the electric vehicle; The target electric vehicle determination module is configured to detect the entry of an object and determine whether the object is a target electric vehicle based on the level change output by the optical path sensor. The reversing reminder module is configured to, if the object is determined to be a target electric vehicle, maintain the operation of the optical path sensor during the process of the electric vehicle entering the target charging parking space; and detect whether the reversing trajectory of the target electric vehicle exceeds the left rear wheel limiter and the right rear wheel limiter. If it exceeds either the left rear wheel limiter or the right rear wheel limiter, send a reverse reversing reminder to the electric vehicle.

8. The electric vehicle parking control system based on optical path sensors according to claim 7, characterized in that, The optical path sensing module is further configured as follows: The optical path sensing module includes M rows of lights arranged at intervals, with a spacing of c between each row of lights; When no object enters, the light from each row of lights reaches the ground at the same distance, and the output level is high. If the entry of an object is detected, the array of lights illuminates the object, shortening the light path, and the output level is low. If n rows of lights output a low level, the width of the object entering the illumination range of the rows of lights is calculated as l = nc, where the error is the width c of one row of lights interval.

9. An electric vehicle parking control platform based on optical path sensors, characterized in that, The electric vehicle parking control platform based on optical path sensors includes the electric vehicle parking control device based on optical path sensors as described in any one of claims 1-6.

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