EP3100252A1

EP3100252A1 - Method for acutating a parking space management system for at least one parking space and a parking space management system for at least one parking space

Info

Publication number: EP3100252A1
Application number: EP14805558.5A
Authority: EP
Inventors: Christian Peters; Christian Kost; Michael Reiber
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2014-01-29
Filing date: 2014-11-27
Publication date: 2016-12-07
Also published as: DE102014201538A1; WO2015113671A1; CN105934787B; CN105934787A

Abstract

The invention creates a method for actuating a parking space management system (50; 50'; 50") for at least one packing space (P) and a parking spacing management system (50; 50'; 50") for at least one parking space (P). The method comprises the steps: Generation (S01) of a magnetic field signal (10) which comprises information about a magnetic field at the at least one parking space (P) as a function of time (t); comparison (S02) of the generated magnetic field signal (10) with a predefined reference signal pattern which is indicative of a removal of a vehicle (F) from the at least one parking space (P); determination (S03), based on the result of the comparison, of whether the generated magnetic field signal (10) has the predefined reference signal pattern; and output (S04) of a first control signal (60; 61), in the event that the generated magnetic field signal (10) has the predefined reference signal pattern, to actuate the parking space management system (50; 50'; 50").

Description

Description title

A method for driving a parking lot management system for at least one parking lot and parking lot management system for at least one parking lot

The present invention relates to a method for driving a parking lot management system for at least one parking lot and a parking lot management system for at least one parking lot.

STATE OF THE ART

Parking for vehicles, especially for passenger cars, are often monitored by video cameras. This should deter potential thieves. In the case of - unauthorized - removal of the vehicle from the parking lot as well as image data to be available, which allow identification of the removal person. Such video cameras are usually activated nonstop, that is they take pictures non-stop. This results in a very large and technically complex amount of data. Furthermore, electrical energy is constantly consumed.

WO 2012/122579 A1 describes a device for monitoring a parking space for a vehicle with a camera unit assigned to the parking space and mounted thereon. The camera is designed to record an end-face license plate of the vehicle. The camera continues to capture one of one

Lighting device projected on the pitch floor marking. Based on

License plate should be the vehicle identifiable. When covering the

Floor marking by the vehicle, the parking space should be determined as "occupied." If the camera detects the ground mark, the parking space should be determined as "free". DISCLOSURE OF THE INVENTION

The present invention discloses a method with the features of

Patent claim 1 and a parking lot management system with the features of claim 9. Accordingly, there is provided a method for driving a parking lot management system for at least one parking lot comprising the steps of: generating a magnetic field signal comprising information about a magnetic field at the at least one parking lot as a function of time; Comparing the generated magnetic field signal with a predetermined reference signal pattern indicative of removal of a vehicle from the at least one parking lot; Determining, based on the result of the comparing, whether the generated magnetic field signal has the predetermined reference signal pattern; and outputting a first control signal if the generated magnetic field signal has the predetermined reference signal pattern for driving the parking lot management system.

The parking management system may be configured to determine and manage free parking within, for example, a parking garage. The parking lot management system may also include devices that the

Monitor and / or secure the at least one parking space serve. These may be surveillance devices with or without cameras, drive-around obstacles such as barriers or lockable gates

Communication devices u.v.m. act. A parking lot shall be understood to mean any place used or intended for the parking of a vehicle. The vehicle may be a road-bound motor vehicle, but also an aircraft and / or a watercraft or the like. act. The vehicle may be an automobile; but it can also be about a trailer without its own driving force. For parking, the phrase "in the parking lot" is used below, with analogous to for

Watercraft should also be understood "in a parking lot", if the parking space is defined by floating boundaries.

The magnetic field signal may be, for example, a magnetic field strength signal

Magnetic flux density signal etc. include or consist in. The magnetic field at the at least one parking space is preferably formed over a base of the parking lot, so that a parked in the parking lot vehicle influences the magnetic field. The magnetic field can be a natural magnetic field. Advantageously, the magnetic field is an artificially generated magnetic field, for example by means of at least one current-carrying coil or by means of at least one permanent magnet. The removal of the vehicle from the parking lot may be a removal that has already occurred, a current removal, or a probable removal in the future. For this purpose, reference signal patterns can be chosen such that, based on statistics, for example, following the occurrence of such a reference signal pattern in the magnetic field signal, removal of the vehicle usually follows.

The process can be performed in real time or slightly delayed. That is, the magnetic field signal can be continuously evaluated in real time, or it can be recorded and the record can be evaluated. By evaluating the magnetic field signal, the steps of comparing with the predetermined reference signal pattern, determining whether the reference signal pattern is present, and outputting the first control signal are to be understood in particular. Furthermore, a parking lot management system is provided for at least one

A parking lot comprising: a magnetic field sensor by means of which a magnetic field signal, which comprises information about a magnetic field at the at least one parking space as a function of time, can be generated; an evaluation device, by means of which the generated magnetic field signal is comparable to a predetermined reference signal pattern, which is indicative of a removal of a vehicle from the at least one parking space; by means of which, based on the result of the comparison, it is further possible to determine whether the generated magnetic field signal has the predetermined reference signal pattern; and by means of which further a first control signal for controlling the parking management system can be output, if the magnetic field signal generated the

having predetermined reference signal patterns.

Advantages of the invention

The finding underlying the present invention is that magnetic field sensors can be used in parking lots to determine a removal of a vehicle from the parking lot.

The idea underlying the present invention is now to take this knowledge into account and provide a method according to which a parking space management system based on a magnetic field signal of a

Magnetic field sensor can be controlled in a parking lot when the magnetic field Signal reference signal pattern, which are indicative of the removal of the vehicle from the parking lot.

This provides an effective way to detect - possibly unauthorized - removal of the vehicle reliably, quickly, energy-saving and early. Effective measures can also be taken to prevent the final removal of the vehicle from the vicinity of the parking lot, such as a parking garage, for example by a drive-away device. The procedure also makes it possible to secure vehicles that do not have their own security systems, such as alarm systems. A technically complex

Retrofitting of such vehicles can thus be avoided. The method may also be applicable to vehicles which do not have their own power electronics and / or power source or whose power source is not to be used, such as trailers, caravans and the like.

Advantageous embodiments and developments emerge from the

Subclaims and from the description with reference to the figures. According to a preferred refinement, the method according to the invention comprises the further steps of determining a holder of the vehicle and / or a vehicle

Identification codes of the vehicle in response to the issued first

Control signal; and outputting a second control signal for activating the parking space management system in dependence on the determined holder of the vehicle and / or on the determined identification code of the vehicle. Thus, the driving of the parking management system depending on information about the holder and / or the vehicle can be done. The identification code of the vehicle may be, for example, an official license plate or a serial number. It can be stored in a database as to how the second control signal is to be formed as a function of the holder and / or the identification code. For example, a holder can enter in the database or have it registered, that always all

Security measures, which are provided by the parking management system to be executed. Alternatively, he may also specify a selection of security measures to be performed. According to a further preferred development, the reference signal pattern has a peak with a width smaller than a predetermined maximum width and / or with a width greater than a predetermined minimum width and / or with a height greater than a predetermined minimum height. By introducing a minimum width, false alarms based on glitches can be prevented. Such a reference signal pattern may be indicative of starting an engine of the vehicle. Starting the engine may be indicative of a likely removal of the vehicle from the parking lot, particularly for timely removal. The peak can within a temporal portion of the reference signal pattern with a in

Substantially finite value may be formed as part of the reference signal pattern. In particular, the finite value may lie on the same side of the time axis in which the peak points.

According to a further preferred development, the reference signal pattern has a plateau to a substantially finite value. The reference signal pattern can furthermore have a zero crossing which follows the plateau in terms of time. The plateau may have a predetermined minimum time width.

According to a further preferred embodiment controls an output

Control signal, in particular the first control signal and / or the second control signal, a communication device so to send a message to an electronic device. The electronic terminal 78 may be, for example, a smartphone, where the message may be an SMS message, an email, a social network message, an automated telephone call, or the like. Thus, for example, a holder of the vehicle can already be notified during the removal or immediately before or after the removal of the vehicle.

According to a further preferred embodiment, an output activated

Control signal, in particular the first control signal and / or the second control signal, a monitoring device. A video camera of the surveillance device may be activated to capture an image and / or video. Thus, the process of removing the vehicle from the parking lot can be recorded, for instance to secure evidence. The monitoring device, in particular the video camera, does not have to be permanently activated thereby. After a predetermined period of time, the monitoring device, in particular the video camera, can be automatically deactivated again. Thus, about one powered by a battery with energy Monitoring device can be used for a particularly long time. In addition, one can

Amount of data that is produced by the monitoring device, in particular images and / or videos are reduced. In a wirelessly networked video camera, it may be provided, for example, that the video camera permanently records images, the image data of the images being stored in a ring memory for a predetermined period of time, for example a few seconds. Upon occurrence of a control signal, the content of the ring memory can be transmitted by radio, for example. As a result, processing and storage devices for the amount of data can be made technically less complicated and less powerful. In addition, a required energy consumption can be reduced.

According to a further preferred embodiment controls an output

Control signal, in particular the first control signal and / or the second control signal, an actuator for actuating a drive-off prevention device. Thus, a final removal of the vehicle from a predetermined area around the

Parking be preventable.

According to a preferred embodiment, the inventive

Parking management system, a database containing information about a holder of the vehicle; and a computing device, which is controllable by means of the output first control signal, from the database to determine a holder of the vehicle and / or an identification code of the vehicle; wherein by means of

Computing a second control signal in response to the determined holder of the vehicle and / or can be output from the determined identification code of the vehicle.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be explained in more detail with reference to the embodiments illustrated in the schematic figures of the drawings. Show it:

Fig. 1 is a schematic flowchart for explaining a method for

Driving a parking lot management system for at least one parking lot according to a first embodiment of the present invention

Invention; 2 is a schematic graph showing an exemplary magnetic field

Signal as a function of time t;

Fig. 3 is a schematic block diagram for explaining an inventive

Car park management system;

Fig. 4 is a schematic plan view of several parking spaces for explaining a

Arrangement of magnetic field sensors on the parking spaces; Fig. 5 shows a parking lot management system according to a second

Embodiment of the present invention; and

6 is a schematic flowchart for explaining a method for

Driving a parking lot management system according to a third embodiment of the present invention.

In all figures, the same or functionally identical elements and devices - unless otherwise stated - provided with the same reference numerals. DESCRIPTION OF THE EMBODIMENTS

1 is a schematic flowchart for explaining a method of driving a parking lot management system for at least one parking space according to a first embodiment of the present invention.

In a first step S01, a magnetic field signal 10 is generated, which includes information about a magnetic field at the parking space P as a function of the time 14. Such a magnetic field signal 10 is shown by way of example in FIG. 2. On the vertical axis in Fig. 2, an intensity, I, 12 plotted. This may be, for example, a magnetic field strength. According to the first embodiment, the magnetic field signal 10 is continuously generated in at least one contiguous time range from a first time t1 to a second time t2. That is, the magnetic field intensity I at the parking lot P is continuously measured between the first time t1 and the second time t2. Alternatively, a regular discrete measurement of magnetic field strength values is also conceivable within one or more time periods. The measurement of the magnetic field signal 10 is effected by a magnetic field sensor 52 of the parking management system 50; 50 '; 50 "as shown in Figures 3, 4, 5 and 7. According to the first embodiment, the magnetic field sensor 52 is located inside the parking lot P below the roadway, as indicated in Figure 3.

Particularly advantageous is an arrangement of the magnetic field sensor 52 under at a position at which an engine of the vehicle F comes to rest in an average vehicle F and in a conventional placement of the vehicle F in the parking lot P. In the case of vessels, the magnetic field sensor may be placed on a jetty or on a buoy, for example. When driving or driving away a vehicle F to or from the parking lot P or through certain actions performed on the vehicle F, measurable changes in the magnetic field signal 10 are effected.

In a step S02, the recorded magnetic field signal 10 with a

predetermined reference signal pattern compared. The reference signal pattern is indicative of removal of the vehicle F from the parking lot P. The reference signal pattern may be indicative of an upcoming or an actual or already removed removal of the vehicle F from the parking lot P. According to the first embodiment, a peak 40 is used as the reference signal pattern, the peak 40 having a width b smaller than a predetermined maximum width and a height h1, h2 larger than a predetermined minimum height. That is, the recorded magnetic field signal 10 is compared with the abstract reference signal pattern of the type mentioned. According to the first embodiment, the height of the peak 40 is defined as the height h1 from the time axis 14. Alternatively, the height of the peak 40 could also be defined as a height h2 by which the peak 40 protrudes from an immediate vicinity of the peak 40 whose definition is adaptable, as illustrated in FIG. The width b of the peak 40 is defined as the width at the half maximum value of the peak 40 (FWHM, English "Fill Width at Half Maximum").

Furthermore, the reference signal pattern according to the first embodiment includes that the peak 40 extends from the time axis 14 in a certain direction along the intensity axis 12, for example, in the negative direction, as shown in FIG. 2. It should be understood that a zero intensity I set suitable and maintained for the course of the process. The zero of the intensity axis 12 is defined to a value of the local magnetic field at the parking lot P.

For example, when the magnetic field sensor 52 generates a magnetic field to generate the magnetic field signal 10 based on changes in this magnetic field, the value of this magnetic field in the unmodified form can be defined as zero of the I-axis. alternative The magnetic field at the parking space may also be a local earth magnetic field whose unaltered value can be defined as zero of the I-axis, the local earth's magnetic field being dependent on and subject to slight variations in geographic location on the earth.

According to the first embodiment, the peak 40 with the suitably selected values for b and h1 is indicative of starting an engine of the vehicle F. Starting the engine of the vehicle F is indicative of a prompt removal of the vehicle F from the parking lot according to the first embodiment P.

In step S03, based on the result of the comparison, it is determined whether the generated magnetic field signal 10 has the predetermined reference signal pattern. The exemplary magnetic field signal 10 shown in FIG. 2 has the peak 40 as a predetermined reference signal pattern.

In a step S04, a first control signal 60 is output if the generated magnetic field signal 10 has the predetermined reference signal pattern. The first control signal 60 is used to drive the parking lot management system 50. FIG. 2 shows a schematic graph illustrating an exemplary magnetic field signal as a function of time t. In Fig. 2, the time t is plotted on the horizontal axis 14, on the vertical axis 12, the magnetic field strength I is plotted. The exemplary magnetic field signal 10 extends between a first time t1 and a second time t2.

In addition to the peak 40 already described with reference to FIG. 1, the exemplary magnetic field signal 10 has further signal patterns, which, inter alia, can alternatively or additionally be used as a reference signal pattern for some embodiments. It may be provided that in step S02 the recorded magnetic field signal 10 is compared with a predetermined plurality of predetermined reference signal patterns, but in any case at least one, each of the predetermined reference signal patterns being indicative of the removal of the vehicle F from the parking lot is P. For example, by parking the vehicle F in the parking lot P, the generated magnetic field signal 10 from a first temporal portion 20 with a in Substantially disappearing magnetic field strength value increase or decrease to a finite value 23, which extends over a second temporal portion 22. After removing the vehicle F from the parking lot P, this decreases

Magnetic field signal 10 from the formed as a plateau second temporal portion 22 back to a substantially vanishing magnetic field strength value in a third temporal portion 24th

Such a sequence of the first, second and third temporal sections 20, 22, 24 with a magnetic field strength value I that remains essentially constant within a temporal section 20, 22, 24, the second temporal section 22 between the first and third temporal sections 20 , 24 and in contrast to the first and third temporal sections 20, 24 is a non-vanishing constant

Magnetic field strength value 23 may be predetermined as a second reference signal pattern. In this case, further parameters can be predetermined, whereby the second reference signal pattern is further specified. For example, minimum and / or minimum

Maximalzeitdauern the first, second and third temporal sections 20, 22, 24 are given. Furthermore, it can be specified that the non-vanishing finite value 23 of the second temporal section 22 designed as a plateau must reach at least a specific value and / or at least a specific absolute value, so that the second reference signal pattern is determined as present in the magnetic field signal 10 becomes.

The generated magnetic field signal 10 can coincide with its generation S01

evaluated, that is to be compared with the at least one predetermined reference signal pattern. The output S04 of the first control signal 60 can take place immediately as soon as the determination S02 shows that at least one of the predetermined reference signal patterns is present in the magnetic field signal 10. As already described, it can also be provided that the output S04 of the first control signal 60 takes place only when a predetermined combination and / or a predetermined number of the predetermined reference signal patterns in the magnetic field signal 10 is determined. If one of the predetermined reference signal patterns is determined multiple times in the magnetic field signal 10, this can be counted for determining the number of the determined reference signal patterns in the magnetic field signal 10 as simple or as a correspondingly multiple occurrence. When the vehicle F is parked in the parking space P and when the vehicle F is removed from the parking space P, a third or fourth temporal section 30, 32 may occur in the magnetic field signal 10, in which the magnetic field signal one or more has multiple zero crossings and / or large fluctuations. The third and fourth temporal sections 30, 32 can also be used in reference signal patterns or serve as such. They can also be used for plausibility.

3 is a schematic block diagram for explaining a parking lot management system 50 according to the present invention, for example, for use in the method according to the first embodiment.

Referring to FIG. 3, the parking lot management system 50 includes the magnetic field sensor 52, by means of which the magnetic field signal 10, which includes information about the magnetic field at the parking lot P as a function of the time t, can be generated. The prior art discloses a large number of magnetic field sensors, for example Wigand sensors or sensors based on a galvano-magnetic effect, for example a Hall sensor, a field plate, an AMR sensor, a GMR sensor, a CMR sensor , and / or a TMR sensor. Furthermore, magnetostrictive effects can be exploited.

The magnetic field sensor 52 may comprise a magnetic field generating device, for example a refuelable coil, by means of which the magnetic field is generated at the parking space P. The generation of the magnetic field can be permanent. The respective current value of the generated magnetic field when the parking space P is unoccupied can always be defined as the zero point for the magnetic field signal 10 to be generated. That is, the magnetic field signal 10 may describe the change of the magnetic field by the parking or the removal of the vehicle F to or from the parking lot P. Alternatively, a change of the local earth magnetic field at the parking lot B from the magnetic field signal 10 may be described.

The parking lot management system 50 furthermore has an evaluation device 54. By means of the evaluation device 54 is the recorded magnetic field signal 10 with the predetermined reference signal pattern, which is indicative of the removal of the

Vehicle F from the parking lot P is comparable. Furthermore, by means of

Evaluation device 54, based on the result of the comparison, determinable whether the generated magnetic field signal 10 has the predetermined reference signal pattern. The evaluation device 54 is further configured to output the first control signal 60 for controlling the parking management system 50, if the generated

Magnetic field signal 10 having the predetermined reference signal pattern. The

predetermined reference signal patterns may be stored in a memory device of the parking management system 50. Alternatively or additionally, the reference signal pattern can also be received via a radio link or a data line.

4 shows a schematic plan view of several parking spaces P, P1, P2 for explaining an arrangement of magnetic field sensors 51, 52, 53 in the parking spaces P, P1, P2.

According to FIG. 4, the magnetic field sensors 51, 52, 53 are respectively arranged in the middle of a corresponding parking space P, P1, P2 below or above a respective floor space, the center being located both on a width B and on a length L of the parking spaces P , P1, P2 is related.

Fig. 5 shows a parking lot management system 50 'according to a second embodiment of the present invention. The second embodiment of the parking management system 50 'is essentially a variant of the parking management system 50 shown in FIG. The parking management system 50 'has a memory 56 in which the predetermined reference signal pattern or the plurality of predetermined reference signal patterns are storable. The evaluation device 54 'of the parking management system 50' is further adapted to a plurality of

Magnetic field signals 10, as described with respect to a magnetic field signal 10 with reference to FIG. 3 above. Each one of the magnetic field signals 10 can be generated by one of a corresponding plurality of magnetic field sensors 51, 52, 53,... Of the parking space management system 50 '. The three points in FIG. 5 indicate that any number of magnetic field sensors 51, 52, 53 can be evaluable as parts of the parking space management system 50 'and accordingly by the evaluation device 54'.

The control signal 60 'which can be output by the evaluation device 54' can furthermore be output in dependence on the magnetic field sensor 51, 52, 53 whose magnetic field signal 10 has the predetermined reference signal pattern. According to the In the second embodiment, three different elements 72, 74, 76 of the parking lot management system 50 'are actuated by the first control signal 60', as in FIG

Explained in more detail below. It should be understood that alternatively, only one of these elements 72, 74, 76, any combination of the elements 72, 74, 76, or other elements of the same or similar type can be controlled, which are parts of the parking management system.

The first control signal 60 'drives a communication device 72 of the parking management system 50' to send a message to an electronic terminal 78. The sending may be done based on the magnetic field sensor 51, 52, 53 whose magnetic field signal 10 has the predetermined reference signal pattern. For example, be stored in the memory device 56, to which mobile terminal 78 a message is to be sent, if the magnetic field signal 10 of a particular magnetic field sensor 51, 52, 53 having the reference signal pattern. The electronic terminal 78 may in particular be a mobile terminal 78, for example a smartphone. The message may be a text message, an e-mail, a social network message, an automated phone call, or the like. The electronic terminal 78 may also be part of the parking management system. For example, this may be a computer of a monitoring station for the parking spaces P, P1, P2. The first control signal 60 'continues to activate a

Monitoring device 74 of the parking management system 50 '. In particular, a video camera 75 of the monitoring device 74 is activated in such a way that it takes a picture and / or a video. This is advantageously one

Video camera 75, which has at least a portion of that parking lot P, P1, P2 in the field of view, on, on or below which is the magnetic field sensor 51, 52, 53, the magnetic field signal 10 having the predetermined reference signal pattern. The monitoring device 74 may include a plurality of video cameras 75. The first control signal 60 'may be formed in this case such that each one

corresponding video camera 75 is activated with a corresponding field of view, as described above. It can be provided for each magnetic field sensor 51, 52, 53 each have their own video camera 75. Likewise, a separate mobile terminal 78 may be provided for each of the magnetic field sensors 51, 52, 53. Further, the output first control signal 60 'drives an actuator 76 of the parking lot management system 50' to actuate a drive-away inhibiting device. The drive-away obstacle device may, for example, be a barrier which prevents the removal of the vehicle F from a closed area, for example a parking garage, around the parking spaces P, P1, P2. It is also possible to provide for each parking space P a separate actuator 76 for actuating in each case a parking space P provided for a route-preventing device.

In some or all cases, the first control signal 60 'may be designed such that in each case only that element 72, 75, 76 is activated, which is responsible for the

corresponding magnetic field sensor 51, 52, 53 is provided, whose magnetic field signal 10 has the predetermined reference signal pattern.

6 is a schematic flowchart for explaining a method of driving a parking lot management system according to a third embodiment of the present invention.

The method according to the third embodiment is essentially a variant of the method according to the first embodiment, which is described with reference to FIG. 1. Compared to the method according to the first embodiment, the method according to the third embodiment has further steps.

In a step S05, a holder and / or an identification code of the vehicle F is determined in response to the output first control signal 61. The determination S05 can be carried out by means of a computer 58. The computing device 58 may be connected to a database DB, from which the holder of the vehicle F and / or the identification code of the vehicle F can be determined. For example, in the database DB information may be included, which identification code or which holder the vehicle F has, which is currently located in the parking lot P. The database DB can be constantly updated, for example via Ethernet. It can be provided that the holder of the vehicle F when parking in the parking lot P with the vehicle F transmitted to the database DB, which identification code or which holder the vehicle F has.

Alternatively, the holder and / or identification code of the vehicle F can also be determined by means of a transponder signal. For this purpose, on the vehicle F a Transponder attached or formed, which is adapted to transmit to the computing device 58, for example via a wireless interface, the holder or the identification code. The transmission can be done automatically. The transmitted information about the holder and / or the identification code can be stored in the database DB. It is also conceivable that the

Computing device 58 only in response to the output first control signal 61 actively polls the information from the transponder.

In a step S06, depending on the determined holder and / or in

Dependence on the determined identification code of the vehicle F a second

Control signal 62 is output. Advantageously, the second control signal 62 is dependent on the first control signal 61 such that the second control signal 62 can also be adapted depending on the magnetic field sensor 51, 52, 53 whose magnetic field signal 10 has the predetermined reference signal pattern. That is, the output first control signal 61 may include information about which magnetic field sensor 51, 52, 53 is the magnetic field signal 10 having the predetermined reference signal pattern. The second output control signal 62 may be output in response to this information. Due to the dependence of the second control signal 62 on the determined holder and / or identification code of the vehicle F, it may be provided, for example, that only that electronic terminal 78 receives a message from the communication device 72 which is assigned to the determined holder. The assignment can be stored, for example, in the database DB. Furthermore, it can be stored in the database DB whether the determined holder wishes to send the message to the electronic terminal 78. If this is not the case, the second control signal 62, the

Instruct communication device 72 not to send a message.

The second control signal 62 may be configured such that it

Communication device 72 controls such to determine a current position of the electronic device 78 and to transmit to the computing device 58. If the current position of the mobile terminal 78 is within a predetermined radius of the parking space P, it can be provided that no further control signals are sent by the computing device 58 in response to the first control signal 61. However, if the current position of the electronic terminal 78 is outside the predetermined radius around the parking lot P, a third control signal from the Computing device 58 are output. The third control signal, in turn, the sending of the message to the electronic device 78, the activation of the

Monitor 74 and / or the activation of the actuator 76 effect. Thus, it can be ensured that the holder of the vehicle F does not receive a message on his electronic terminal 78, although it is he who removes the vehicle F from the parking lot P.

Although the present invention has been described above with reference to preferred embodiments, it is not limited thereto, but modifiable in a variety of ways. In particular, the invention can be varied or modified in many ways without deviating from the gist of the invention.

Claims

claims

1 . A method for driving a parking lot management system (50, 50 ', 50 ") for at least one parking lot (P), comprising the steps of:

Generating (S01) a magnetic field signal (10) which contains information about a

Magnetic field at the at least one parking lot (P) as a function of time (t) comprises; Comparing (S02) the generated magnetic field signal (10) with a predetermined reference signal pattern indicative of removal of a vehicle (F) from the at least one parking lot (P);

Determining (S03), based on the result of the comparing, whether the generated magnetic field signal (10) has the predetermined reference signal pattern; and

Outputting (S04) a first control signal (60; 61) if the generated magnetic field signal (10) has the predetermined reference signal pattern for driving the parking lot management system (50; 50 '; 50 ").

2. The method of claim 1 with the further steps:

Determining (S05) a holder of the vehicle (F) and / or an identification code of the vehicle (F) in response to the output first control signal (61); and

Outputting (S06) a second control signal (62) for activating the parking management system (50; 50 '; 50 ") in dependence on the determined holder of the vehicle (F) and / or on the determined identification code of the vehicle (F).

A method according to any of the preceding claims 1 or 2, wherein the reference signal pattern has a peak (40) having a width (b) smaller than a predetermined one

Maximum width and / or having a width (b) greater than a predetermined maximum width and / or having a height (h1, h2) greater than a predetermined minimum height.

A method according to any one of the preceding claims 1 to 3, wherein the reference signal pattern has a plateau (22) substantially at a finite value (23); and wherein the reference signal pattern further comprises a zero crossing (32) subsequent in time to the plateau (22).

5. The method of claim 1, wherein an output control signal controls a communication device to send a message to an electronic terminal.

A method according to any one of the preceding claims 1 to 5, wherein an output control signal (60; 62) activates a monitoring device (74).

7. Method according to one of the preceding claims 1 to 6, wherein by means of the output control signal (60; 62) a video camera (75) of the

Monitoring device (74) is activated so that it takes a picture and / or a video.

A method according to any one of the preceding claims 1 to 7, wherein an output control signal (60; 62) drives an actuator (76) to actuate a drive-away inhibiting device.

Parking management system (50, 50 ', 50 ") for at least one parking space (P), comprising: a magnetic field sensor (52), by means of which a magnetic field signal (10) which transmits information about a magnetic field at the at least one parking space ( P) is generated as a function of the time (t); an evaluation device (54, 54 '), by means of which the generated magnetic field signal (10) with a predetermined reference signal pattern indicative of a removal of a vehicle (F) of which at least one parking space (P) is comparable, by means of which, based on the result of the comparison, it is further possible to determine whether the generated magnetic field signal (10) has the predetermined reference signal pattern; by which, furthermore, a first control signal (60; 61) for controlling the parking lot management system (50; 50 '; 50 ") can be output if the generated magnetic field signal (10) has the predetermined reference signal pattern.

10. Parking management system according to claim 9 with:

a database (DB) containing information about a holder of the vehicle (F); a computing device (58) which is controllable by means of the output first control signal (61) to determine from the database (DB) a holder of the vehicle (F) and / or an identification code of the vehicle (F);

wherein by means of the computing device (58) a second control signal (62) in dependence on the determined holder of the vehicle (F) and / or of the determined

Identification code of the vehicle (F) can be output.