Electric scooter parking method and system

Abstract

The present disclosure describes methods and systems for notifying a backend service of the presence of an electric kick scooter within a parking zone of the electric kick scooter. The method comprises the steps of: a) transmitting, by a fixed field device first transmitter of a fixed field device, a communication signal; b) detecting, by a mobile field device receiver of a mobile field device, the communication signal, c) transmitting, by a mobile field device transmitter of the mobile field device, a response signal as a response to the mobile field device receiver detecting the communication signal, d) detecting, by a fixed field device receiver of the fixed field device, the response signal, e) determining, by the fixed field device, based on at least the detected response signal, whether the mobile field device is present within a distance L < 100 meters of the fixed field device, and f) notifying, by the fixed field device, the backend service of whether the mobile field device is present within the distance L of the fixed field device through a fixed field device second transmitter and a backend service receiver of the backend service.

Description

Technical Field

[0001] This disclosure relates to the field of electric scooter parking systems and methods. Background Technology

[0002] By the summer of 2020, rentable electric scooters (e-scooters) had become a common sight in most urban environments. While providing a practical means of transportation, the emergence of e-scooters has not only garnered positive feedback from the public. Visual pollution and sidewalk blockages have led to strong public protests and demands for stricter regulations from local authorities.

[0003] Local authorities and the service providers behind rentable e-scooters have launched several initiatives to "clean up" the situation, including deploying fixed parking racks and mobilizing cleanup teams. While these initiatives have made positive contributions, unfortunately, they have not adequately addressed the problems of visual pollution and pedestrian / sidewalk blockage. Another measure to control the distribution of rentable e-scooters is the establishment of designated GPS-defined no-parking zones. E-scooter users will not be able to park their scooters within these zones and will therefore have to move out of the no-parking zones to park them. One problem with GPS-defined no-parking zones is that GPS accuracy is not high enough to properly control the distribution of e-scooters at a magnified street level.

[0004] The object of this invention is to provide a system and method for controlling the distribution of parked electric scooters. Summary of the Invention

[0005] A first aspect of the present invention provides a method for notifying a backend service that an electric scooter exists within a parking area for the electric scooter, the method comprising the steps of: a) transmitting a communication signal by a first transmitter of a fixed field device of a fixed field device; b) detecting the communication signal by a mobile field device receiver of a mobile field device; c) transmitting a response signal by a mobile field device transmitter of the mobile field device as a response to the detection of the communication signal by the mobile field device receiver; d) detecting the response signal by the fixed field device receiver of the fixed field device; e) determining, based on at least the detected response signal, whether the mobile field device exists within a distance L < 100 meters of the fixed field device; and f) notifying the backend service, via a second transmitter of the fixed field device and a backend service receiver, that the mobile field device exists within a distance L of the fixed field device, wherein the fixed field device is deployed at a fixed field device location suitable for independent parking of the electric scooter, and wherein the mobile field device is connected to the electric scooter.

[0006] According to an embodiment of the present invention, in step e), the fixed-site device further determines whether the mobile-site device exists within a distance L < 100 meters from the fixed-site device based on the communication signal.

[0007] According to another embodiment of the present invention, in step a), a communication signal is sent with a preset communication signal strength, and in step b), if the communication signal at the position of the mobile-site device receiver is stronger than the communication signal strength threshold, then the mobile-site device receiver detects the communication signal, where the distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

[0008] According to yet another embodiment of the present invention, the mobile-site device transmitter and the mobile-site device receiver form a passive transponder, where in step a), a communication signal is sent with a preset communication signal strength, in step b), when the communication signal at the transponder position is stronger than the communication signal strength threshold, the mobile-site device receiver of the transponder is activated by the communication signal, and in step c), the mobile-site device transmitter of the transponder sends a response signal in response to the activation of the mobile-site device receiver by the communication signal, where the distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

[0009] According to yet another embodiment of the present invention, 0 < L < 10 meters or 0.1 < L < 1 meter.

[0010] According to yet another embodiment of the present invention, the method further includes step g) enabling the user of the electric scooter to deactivate the electric scooter by the backend service.

[0011] A second aspect of the invention provides an electric scooter parking system for notifying a backend service that an electric scooter exists within a designated parking area. The system includes: a fixed field device comprising a first fixed field device transmitter, a second fixed field device transmitter, and a third fixed field device transmitter, the fixed field device being configured to be deployed at a location suitable for free-standing parking of the electric scooter; a backend service associated with the backend service receiver; and a mobile field device comprising a mobile field device transmitter and a mobile field device receiver, the mobile field device being connected to the electric scooter parking area. A scooter, wherein a first transmitter of a fixed field device is configured to transmit a communication signal, a receiver of a mobile field device is configured to detect the communication signal, and a transmitter of the mobile field device is configured to transmit a response signal. In response to the detection of the communication signal by the receiver of the mobile field device, the fixed field device is further configured to determine whether the mobile field device exists within a distance L < 100 meters of the fixed field device based on at least the detected response signal. The fixed field device is also configured to notify a backend service, via a second transmitter of the fixed field device and a backend service receiver, whether the mobile field device exists within a distance L of the fixed field device.

[0012] According to an embodiment of the present invention, the fixed field device is configured to determine whether the mobile field device is within a distance L < 100 meters of the fixed field device based on at least the detected response signal and communication signal.

[0013] According to another embodiment of the present invention, a first transmitter of a fixed field device is configured to transmit a communication signal with a preset communication signal strength, and a receiver of a mobile field device is configured to detect the communication signal if the communication signal at the location of the mobile field device receiver is stronger than a communication signal strength threshold. The mobile field device transmitter is configured to transmit a response signal as a response to the mobile field device receiver detecting the communication signal, wherein the distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

[0014] According to another embodiment of the present invention, a mobile field device transmitter and a mobile field device receiver constitute a passive repeater, wherein a fixed field device first receiver is configured to transmit a communication signal with a preset communication signal strength, the mobile field device receiver of the repeater is configured to be activated by the communication signal if the communication signal at the location of the repeater is stronger than a communication signal strength threshold, and the mobile field device transmitter of the repeater is configured to transmit a response signal as a response to the activation of the mobile field device receiver of the repeater by the communication signal, wherein the distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

[0015] According to another embodiment of the present invention, 0 < L < 2 meters or 0 < L < 1 meter.

[0016] According to another embodiment of the present invention, the fixed-site device first transmitter includes a plurality of fixed-site device sub-transmitters.

[0017] According to another embodiment of the present invention, the plurality of fixed-site device sub-transmitters are distributed along the longitudinal extension of the fixed-site device.

[0018] According to another embodiment of the present invention, the fixed-site device first transmitter has an elongated shape, wherein the fixed-site device first transmitter extends along the longitudinal extension of the fixed-site device.

[0019] Other advantageous features will be apparent from the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For a better understanding of the present invention, the following description will refer to the accompanying drawings, wherein:

[0021] Figure 1 is a schematic diagram of a system according to the present invention, the system including a fixed-site device, a mobile-site component, and a back-end service, wherein the dashed lines show optional embodiments,

[0022] Figure 2 is a schematic diagram of a system and method according to the present invention, which can be used to define possible parking positions of an electric scooter,

[0023] Figure 3 is a schematic diagram of a system and method according to the present invention, which can be used to define possible parking positions of an electric scooter along a wall, such as a building wall,

[0024] Figure 4 is a schematic diagram of a system according to the present invention, wherein a plurality of fixed-site devices or a single fixed-site device including a plurality of fixed-site device sub-repeaters can be deployed to define possible parking positions of an electric scooter along a wall, such as a building wall,

[0025] Figure 5 is a schematic diagram of a fixed-site device and a mobile-site device connected to an electric scooter,

[0026] Figure 6 is a schematic diagram of a system and method according to an embodiment of the present invention,

[0027] Figure 7 is a schematic diagram of a system and method according to an embodiment of the present invention, and

[0028] Figure 8 This is a schematic diagram of a system and method according to an embodiment of the present invention, wherein the mobile field device transmitter and the mobile field device receiver constitute a passive repeater. Detailed Implementation

[0029] In the following description, general embodiments of the invention, as well as specific exemplary embodiments, will be described. Reference will be made to the accompanying drawings. However, it should be noted that the drawings are merely exemplary embodiments, and other features and embodiments may also be within the scope of the claimed invention.

[0030] Unless otherwise defined, all technical terms, symbols, and other scientific terms or terms used herein are intended to have the meaning commonly understood by one of ordinary skill in the art to which this invention pertains. Some technical terms, symbols, and other scientific terms or terms may be defined as follows.

[0031]

[0032]

[0033]

[0034] This invention provides an electric scooter parking system for notifying a backend service that an electric scooter exists within a designated parking area. The system includes a fixed field device, a backend service, and a mobile field device. In the context of this invention, a mobile field device can be considered an electronic device that can be connected to an electric scooter. In the context of this invention, a fixed field device can be considered an electronic device configured to be deployed at a given location (i.e., a fixed field device location). The fixed field device location can be any location suitable for the independent parking of an electric scooter, such as a marked area, sidewalk, plaza, train station, bus stop, etc. In the context of this invention, the backend service can be any backend server or similar server that handles the management of one or more electric scooters that can be rented using a mobile application. The backend service can be, for example, a server, multiple servers, a cloud service, or a similar server. According to any embodiment of the invention, the electric scooter parking system may include an electric scooter, wherein the mobile field device is connected to the electric scooter.

[0035] Figures 1-4This is an exemplary schematic diagram illustrating the concept of the present invention. A mobile field device 140 installed on the electric scooter 130 can communicate directly with a fixed field device 190, and this communication can be used by the fixed field device 190 to determine the distance between the mobile field device 140 and the fixed field device 190. Knowing the distance between the mobile field device 140 and the fixed field device 190, the fixed field device 190 will therefore know its distance from the electric scooter 130. The fixed field device 190 can directly or indirectly notify the backend service 100 of the presence of the electric scooter 130, and the backend service 100 can again use this information to enable or deny deactivation of the electric scooter 130 by a human user. Deactivation of electric scooters 130 within a given distance of the fixed field device 190 can be permitted, while deactivation of electric scooters 130 beyond a given distance of the fixed field device 130 can be denied. Therefore, a user operating the electric scooter 130 from a given distance away from the fixed site device 190 will have to drive the electric scooter within a given range of the fixed site device 190 in order to be able to park the electric scooter 130. In other words, the deployment of one or more fixed site devices 190 can be used to create one or more parking areas for the electric scooter 130. Figure 4 An exemplary schematic diagram is shown, in which multiple fixed field devices 190 are deployed, each at a different location.

[0036] According to the present invention, the fixed field device 190 includes a fixed field device first transmitter 200 and a fixed field device receiver 220, while the mobile field device 140 includes a mobile field device transmitter 150 and a mobile field device receiver 150. These are in... Figure 5 As shown in the diagram. According to the present invention, the fixed field device 190 is configured to communicate with the mobile field device 140 via a fixed field device first transmitter 200, a fixed field device receiver 220, a mobile field device transmitter 150, and a mobile field device receiver 150. The fixed field device first transmitter 200 can transmit communication signals that can be received by the mobile field device receiver 150. When the mobile field device receiver 150 receives a communication signal, the mobile field device can then transmit a response signal to the fixed field device receiver 220 via the mobile field device transmitter 150.

[0037] A communication signal can be broadcast by a first transmitter of a fixed field device, enabling any mobile field device receiver connected to an electric scooter within the communication signal range to detect the communication signal. The communication signal may in particular include the identity document (ID) of the fixed field device, and optionally one or more of the following: information about the location of the fixed field device, the number of electric scooters parked within a distance L of the fixed field device, and / or electromagnetic wave phase information.

[0038] After the mobile field device receiver receives the communication signal, such as Figure 6 The mobile field device shown can send a response signal based on the received communication signal. The response signal may include, for example, any one or more of the following: the ID of the mobile field device, the ID of the electric scooter to which the mobile field device is connected, the ID of the user of the electric scooter to which the mobile field device is connected, information regarding the signal strength of the communication signal received by the mobile field device receiver, and / or electromagnetic phase information of the communication signal received by the mobile field device receiver. Those skilled in the art will understand that any digital information communicated between the mobile field device and the fixed field device can be communicated using a communication tool different from the means described herein.

[0039] like Figure 6 The displayed response signal can be received by a fixed field device receiver and subsequently transmitted by a mobile field device transmitter. The fixed field device can then determine whether the mobile field device is within a distance L of the fixed field device based on at least the detected response signal. After performing this determination, according to the invention, the fixed field device will communicate information to a backend service regarding whether the mobile field device is within a distance L of the fixed field device. According to the invention, this communication is performed via a second transmitter of the fixed field device and a backend service receiver. Those skilled in the art will understand that, alternatively, the fixed field device can forward the response signal or any information about the response signal to the backend service. Alternatively, the backend service can therefore determine whether the mobile field device is within a distance L of the fixed field device based on at least the information about the detected response signal. Those skilled in the art will also recognize that the fixed field device can communicate with the backend service directly or indirectly (e.g., via an electric scooter). The second transmitter of the fixed field device can therefore be the same as the first transmitter of the fixed field device, and the fixed field device can communicate with the back-end service via the mobile field device and the electric scooter connected to the mobile field device.

[0040] like Figure 6As shown, when it is determined that a mobile field device exists within a distance L of a fixed field device, the fixed field device can utilize additional information. The fixed field device can, for example, utilize both detected response signals and communication signals. The fixed field device can optionally utilize any one or more of the additional information, such as information about the weather, the location of the fixed field device, and the surrounding environment of the fixed field device.

[0041] As previously described, a fixed field device can determine whether a mobile field device is within a distance L of the fixed field device based on at least the detected response signal. The response signal itself may include information about L, or the presence of the response signal may alternatively provide information about L. In some embodiments of the invention, time-of-flight measurement (e.g., using ultra-wideband or other suitable techniques) may be used to provide the distance between the fixed and mobile field devices. Alternatively, electromagnetic distance measurement may be used, for example, by estimating the distance between the fixed and mobile devices using phase changes occurring in the communication signal and / or response signal. Those skilled in the art will recognize that, for example, when using time-of-flight measurement or electromagnetic distance measurement to determine the distance between the fixed and mobile field devices, the limitation L can be set by the software or hardware configuration of the fixed field device (and optionally, the mobile field device).

[0042] In one embodiment of the present invention, such as Figure 7As schematically shown, a fixed field device first transmitter is configured to transmit a communication signal with a preset communication signal strength. The signal strength can be adjustable here, for example, by controlling the transmitter signal voltage or other suitable methods. A mobile field device receiver can be configured here to detect a signal stronger than a specific signal threshold. The mobile field device receiver can therefore be configured to detect the communication signal only when the communication signal is stronger than the communication signal strength threshold at the location of the mobile field device receiver. As the strength of the communication signal decreases with distance from the fixed field device first transmitter, a critical distance L from the fixed field transmitter can be determined when the communication signal strength drops below the communication signal strength threshold. Therefore, a mobile field receiver located more than L from the fixed field transmitter will not detect or receive the communication signal, while a mobile field receiver located within L from the fixed field transmitter will detect or receive the communication signal. The signal strength threshold can be determined by the sensitivity of the mobile field receiver, such that distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold. After the mobile field receiver receives the communication, the mobile field device transmitter can send a response signal at that location. Therefore, the response signal can be referred to as a response to the mobile field device receiver's detection of the communication signal. In this case, the detection of the response signal by the fixed field device receiver itself can indicate that the mobile field device is within a distance L from the fixed field device.

[0043] In one embodiment of the present invention, such as Figure 8As schematically shown, the mobile field device transmitter and the mobile field device receiver constitute a passive transponder. Here, the fixed field device first transmitter is configured to transmit a communication signal, such as a radio wave activation signal, with a preset communication signal strength. The signal strength can be adjustable here, for example, by controlling the transmitter signal voltage or other suitable methods. The mobile field device receiver of the transponder is configured to be activated by the communication signal when the communication signal is stronger than the communication signal strength threshold (alternatively referred to as the activation threshold). Thus, the mobile field device receiver of the transponder can be configured to detect the communication signal only when the communication signal at the location of the mobile field device receiver is stronger than a given communication signal strength threshold. When the strength of the communication signal decreases with the distance from the fixed field device first transmitter, the critical distance L from the fixed field transmitter can be determined in the case where the strength of the communication signal drops below the communication signal strength threshold. Thus, the mobile field receiver of the transponder located more than the distance L from the fixed field transmitter will not detect or receive the communication signal because the communication signal is too weak to activate the mobile field receiver of the transponder. On the other hand, the mobile field receiver located within the distance L from the fixed field transmitter will receive the communication signal because the communication signal here is strong enough (i.e., stronger than the activation threshold) to activate the mobile field receiver of the transponder. The signal strength threshold can be determined by the sensitivity of the mobile field receiver, such that the distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold. After the mobile field receiver receives the communication, the mobile field device transmitter can send a response signal here. The response signal can thus be referred to as a response to the mobile field device receiver detecting the communication signal, i.e., being activated by the communication signal. In this case, the detection of the response signal by the fixed field device receiver itself can indicate that the mobile field device is within the distance L from the fixed field device.

[0044] According to any embodiment of the present invention, the fixed field device first transmitter can be directional, which means that the signal strength from the fixed field device first transmitter varies with the direction from the fixed field device first transmitter. Thus, the distance L can vary with the direction from the fixed field device first transmitter.

[0045] As mentioned above, the distance L can be determined by the communication signal strength and the communication signal strength threshold of the mobile field receiver, or alternatively, is implemented in software or hardware in the fixed field device (or optionally, or alternatively, the mobile field device). According to an embodiment of the present invention, the distance L can be 0 < L < 2 meters or 0 < L < 1 meter. Alternatively, the distance L can be 0.1 < L < 2 meters, or alternatively 0.1 < L < 1 meter.

[0046] Figure 4An electric scooter parking system is shown, comprising a fixed field device 190, which also includes a first transmitter for the fixed field device. Here, the first transmitter for the fixed field device includes multiple sub-transmitters 205. Each sub-transmitter here functions as the first transmitter for the fixed field device as described previously herein. Therefore, the multiple sub-transmitters 205 can be considered as multiple first transmitters for the fixed field device. Figure 4 An embodiment of the invention is also shown, wherein a plurality of fixed field device sub-transmitters 205 are arranged along a longitudinal extension of a fixed field device 190. The fixed field device 190 may here be an elongated structure, such as an elongated rod. Such a rod may be positioned, for example, along a building wall to create a parking area for electric scooters along the building wall. Alternatively, the fixed field device first transmitter itself may have an elongated shape, wherein the fixed field device first transmitter extends along the longitudinal extension of the fixed field device 190.

[0047] Other advantageous features will be apparent from the appended claims.

Claims

1. A method for parking an electric scooter, used to notify a backend service (100) that an electric scooter (130) exists in a parking area for electric scooters (130), the method comprising the following sequential steps: a) First, the fixed field device (190) first transmitter (200) broadcasts a communication signal (120), wherein, The fixed field device (190) is arranged in or near the parking area of ​​the electric scooter. b) The communication signal (120) is detected by the mobile field device receiver (150) of the mobile field device (140). c) A response signal (180) is sent by the mobile field device transmitter (160) of the mobile field device (140) as a response to the mobile field device receiver (150) detecting the communication signal (120); d) The response signal (180) is detected by the fixed field receiver (220) of the fixed field device (190). e) The fixed field device (190) determines, based on at least the detected response signal (180), whether the mobile field device (140) is within a distance L < 100 meters of the fixed field device (190). f) The fixed field device (190) notifies the back-end service (100) via the fixed field device second transmitter (210) and the back-end service receiver (110) whether the mobile field device (140) exists within a distance L of the fixed field device (190). g) The electric scooter (130) can be deactivated by the backend service (100), and h) The user deactivates the electric scooter (130); The fixed field device (190) is deployed at a fixed field device location suitable for independent parking of the electric scooter, and the mobile field device (140) is connected to the electric scooter.

2. The electric scooter parking method according to claim 1, wherein, In step e), the fixed field device (190) further determines, based on the communication signal (120), whether the mobile field device (140) exists within a distance L < 100 meters of the fixed field device (190).

3. The electric scooter parking method according to claim 1 or 2, wherein... - In step a), the communication signal (120) is transmitted with a preset communication signal strength, and wherein, - In step b), if the communication signal (120) at the location of the mobile field device receiver is stronger than the communication signal strength threshold, then the mobile field device receiver (150) detects the communication signal (120). The distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

4. The electric scooter parking method according to claim 1 or 2, wherein, The mobile field device transmitter (160) and the mobile field device receiver (150) constitute a passive repeater (170), wherein - In step a), the communication signal (120) is transmitted with a preset communication signal strength. - In step b), when the communication signal (120) at the location of the repeater (170) is stronger than the communication signal strength threshold, the mobile field device receiver (150) of the repeater (170) is activated by the communication signal (120). - In step c), the mobile field device transmitter (160) of the repeater (170) sends the response signal (180) as a response to the activation of the mobile field device receiver (150) by the communication signal (120). The distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

5. The method for parking an electric scooter according to claim 1 or 2, wherein, 0 < L < 10 meters, 0 < L < 2 meters, or 0.1 < L < 1 meter.

6. An electric scooter parking system (10) for notifying a backend service (100) that an electric scooter (130) exists within a parking area for the electric scooter (130), the system comprising: - A fixed field device (190) includes a first fixed field device transmitter (200), a fixed field device receiver (220), and a second fixed field device transmitter (210), the fixed field device (190) being configured to be deployed at a location suitable for independent parking of the electric scooter. - The backend service (100) is associated with the backend service receiver (110), and - A mobile field device (140), including a mobile field device transmitter (160) and a mobile field device receiver (150), wherein the mobile field device (140) is connected to the electric scooter. The fixed field device first transmitter (200) is configured to initiate the transmission of a communication signal (120), the mobile field device receiver (150) is configured to detect the communication signal (120), the mobile field device transmitter (160) is configured to transmit a response signal (180) in response to the mobile field device receiver (150) detecting the communication signal (120), and the fixed field device (190) is further configured to determine based on at least the detected response signal (180). The mobile field device (140) is located within a distance L < 100 meters of the fixed field device (190). The fixed field device (190) is configured to notify the backend service (100) via the second transmitter (210) of the fixed field device and the backend service receiver (110) that the mobile field device (140) is located within a distance L of the fixed field device (190). The backend service (100) is configured to enable the electric scooter (130) to be deactivated.

7. The electric scooter parking system (10) according to claim 6, wherein, The fixed field device (190) is configured to determine whether the mobile field device (140) is within a distance L < 100 meters of the fixed field device (190) based on at least the detected response signal (180) and the communication signal (120).

8. The electric scooter parking system (10) according to claim 6 or 7, wherein - The first transmitter (200) of the fixed field device is configured to transmit the communication signal (120) with a preset communication signal strength. - The mobile field device receiver (150) is configured to detect the communication signal (120) if the communication signal (120) at the location of the mobile field device receiver is stronger than a communication signal strength threshold, and wherein The mobile field device transmitter (160) is configured to transmit the response signal (180) in response to the mobile field device receiver (150) detecting the communication signal (120). in, The distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

9. The electric scooter parking system (10) according to claim 6 or 7, wherein, The mobile field device transmitter (160) and the mobile field device receiver (150) constitute a passive repeater (170), wherein - The first transmitter (200) of the fixed field device is configured to transmit the communication signal (120) with a preset communication signal strength. - The mobile field device receiver (150) of the repeater (170) is configured to be activated by the communication signal (120) if the communication signal (120) at the location of the repeater (170) is stronger than the communication signal strength threshold. The mobile field device transmitter (160) of the repeater (170) is configured to transmit the response signal (180) in response to the activation of the mobile field device receiver (150) of the repeater (170) by the communication signal (120). The distance L is provided by one or both of the preset communication signal strength and the communication signal strength threshold.

10. The electric scooter parking system (10) according to claim 6 or 7, wherein, 0.1 < L < 10 meters, or where 0.1 < L < 1 meter.

11. The electric scooter parking system (10) according to claim 6 or 7, wherein, The fixed field device first transmitter (200) includes multiple fixed field device sub-transmitters (205).

12. The electric scooter parking system (10) according to claim 11, wherein, The plurality of fixed field device sub-transmitters (205) are arranged along the longitudinal extension of the fixed field device (190).

13. The electric scooter parking system (10) according to claim 6 or 7, wherein, The first transmitter (200) of the fixed field device has an elongated shape, and wherein the first transmitter (200) of the fixed field device extends along the longitudinal extension of the fixed field device (190).

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