EP3539114A1 - Module autonome de détection de présence d'un véhicule sur un emplacement de stationnement - Google Patents
Module autonome de détection de présence d'un véhicule sur un emplacement de stationnementInfo
- Publication number
- EP3539114A1 EP3539114A1 EP17805120.7A EP17805120A EP3539114A1 EP 3539114 A1 EP3539114 A1 EP 3539114A1 EP 17805120 A EP17805120 A EP 17805120A EP 3539114 A1 EP3539114 A1 EP 3539114A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- guide
- detection module
- module according
- presence detection
- detector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
- G08G1/146—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas where the parking area is a limited parking space, e.g. parking garage, restricted space
Definitions
- Standalone module for detecting the presence of a vehicle
- the present invention relates to a module for detecting the presence of a vehicle on a parking space.
- Parking space availability information systems are known in underground car parks to monitor the occupancy of each location. These information systems generally comprise a network of presence detectors for each parking space connected to a unit for managing the information detected by these detectors.
- the invention aims to remedy this drawback by proposing an autonomous module for detecting the presence of a vehicle on a parking space.
- autonomous means that the module is able to ensure its operation without special assistance, especially in terms of energy.
- the subject of the present invention is a module for detecting the presence of a vehicle on a parking space, the module being configured to be buried in the ground of the parking space and comprising:
- an occupancy detector configured to detect the presence of a vehicle on the parking space
- thermoelectric generator configured to supply at least the presence detector, comprising at least one thermoelectric generator module configured to transform into energy a difference between an air temperature and a soil temperature at a predetermined depth in the ground.
- a presence module according to the invention is autonomous in energy thanks to the electrical energy produced by the thermoelectric generator module from the temperature difference between the air and the ground.
- the presence detection module according to the invention may also include one or more of the following characteristics, considered individually or in any technically possible combination:
- thermoelectric generator module is a Seebeck effect module
- the presence detection module comprises a body housing the presence detector and the power generator, the body being made of thermal insulating material;
- the presence detection module comprises first and second guides housed in the body so that the thermoelectric generator module is arranged between the first and second guides;
- the first guide has an end having a black surface in contact with the air
- the first guide being made of a thermally conductive material, preferably having a thermal conductivity of at least 40 W / m ⁇ K, preferably at least 50 W / m ⁇ K;
- the black surface of the guide in thermal conductive material is black anodized aluminum
- the first guide comprises a receptacle housing at least the presence detector
- the second guide and the body are configured to create a space housing at least the presence detector, the first guide is removably arranged in the body of the detection module;
- the first guide, the second guide and the body have cylindrical geometries of the same main axis;
- the module comprises a thermal conductive material seal arranged between the thermoelectric generator module and the second guide, preferably having a thermal conductivity of at least 0.5 W / m.K, preferably at least 1 W / m.K;
- the module comprises an O-ring seal arranged between the first guide and the body;
- the body comprises a shoulder forming a stop for the first guide when it is put into place in the body;
- the second guide has a first end facing the thermoelectric generator module and a second end opposite the first end and in direct contact at least partially with the ground;
- the second end facing the ground has a plurality of fins;
- the seal arranged between the thermoelectric generator module and the second guide is made of graphite-filled silicone;
- the presence detector is a detector of the radar and / or magnetic type;
- the presence detection module comprises a communication means configured to send to a remote entity information relating to the presence detected by the presence detector;
- the communication means is a means of high frequency communication
- the presence detection module comprises an energy storage unit configured to store at least a portion of the energy generated by the power generator and to supply at least part of the presence detector and / or the communication means;
- the energy storage unit is a battery or a supercapacitor
- the presence detection module comprises a DC / DC type converter directly connected to the thermoelectric generator module;
- the energy storage unit and / or the DC / DC type converter is housed in the receptacle housing the presence detector.
- FIG. 1 shows a diagrammatic sectional view of an embodiment of a module 10 for detecting the presence of a vehicle on a parking space 12 according to the invention
- FIG. 2 is a view in section and in perspective. of the module of FIG.
- FIG. 3 is a view in section and in perspective of the module of FIG. 1 during its assembly or a possible maintenance operation, and - -
- FIG. 4 is a diagrammatic sectional view of another embodiment of a module 10 for detecting the presence of a vehicle on a parking slot 12 according to the invention.
- FIG. 1 to 4 illustrating an embodiment of a module 10 for detecting the presence of a vehicle on a parking slot 12 according to the invention.
- the module 10 is intended to be buried at least partially in the ground 14 of the parking space.
- at least partially buried is meant that the module may possibly exceed the ground on a low height, of the order of a few centimeters.
- the presence detection module 10 is buried at least 15 cm deep in the soil.
- the module 10 is configured to be at least partially buried in the ground of the parking slot 12.
- the module 10 is sealed in the ground 14 via a sealing plaster 16 in order to ensure the stability of the device in the ground and to avoid damage or possible theft attempts of the module 10.
- the module 10 comprises a body 18 configured to ensure the recovery of mechanical forces to be able to support the weight of the vehicle if it rolls or parked on it.
- the body 18 is configured to also ensure the tightness of the module 10 vis-à-vis a possible moisture in the air and in the soil.
- the presence detection module 10 comprises a presence detector 20 configured to detect the presence of a vehicle on the parking slot 12.
- the presence detector 20 is preferably a detector of the radar type, of the English "RAdio Detection And Ranging". This type of detector uses electromagnetic waves to detect the presence and determine the position of the car relative to the detector.
- the radar detector comprises a transmitter and a receiver. In operation, the waves sent by the transmitter are reflected by the target, here the vehicle, and the return signals called radar echo, are picked up and analyzed by the receiver.
- the presence detector 20 comprises a magnetic type detector comprising a magnetic sensor configured to analyze the variations of the surrounding magnetic field.
- This surrounding magnetic field is stable when the parking space is free and is deformed with the arrival of a vehicle containing ferromagnetic materials.
- the module 10 comprises a power generator 30 configured to supply at least the presence detector 20.
- the power generator 30 comprises at least one thermoelectric generator module 32 configured to transform into energy a difference between an air temperature and a soil temperature at a predetermined depth in the ground.
- thermoelectric generator module 32 makes it possible to transform the difference in temperature between the ambient air and the ground to the depth where it is buried. The deeper the module is buried, the more the temperature difference and thus the resulting energy are guaranteed. This difference in temperature depends on the nature of the soil and weather conditions. However, like photovoltaic generators, the thermoelectric generator module 32 is not dependent on the sun and / or time of day. It can therefore operate continuously and continuously produce electrical energy depending on the temperature difference between the air and the ground. - -
- thermoelectric generator module 32 is a Seebeck effect module.
- the energy produced by the thermoelectric generator module 32 depends on the exchange surface of the Seebeck effect module.
- the presence detection module 10 comprises a DC / DC converter 34 directly connected to the thermoelectric generator module 32 in order to maximize the recovery of the energy converted by the thermoelectric generator module 32.
- This type of Seebeck effect module is generally very fragile and difficult to implement in outdoor conditions.
- thermoelectric generator module 32 has the advantage of protecting the thermoelectric generator module 32 from the compression due to vehicles, bad weather, the possible acidity of the ground and / or vandalism.
- the body 18 of the presence detection module 10 is configured to receive the presence detector 20 and the power generator 30.
- the body 18 is a hollow cylinder as illustrated in the figures.
- the body 18 of the presence detection module 10 is configured to channel the heat flow to the thermoelectric generator module 32 while protecting it from the environment.
- the presence detection module 10 advantageously comprises first and second guides 40, 50 housed in the body 18 so that the thermoelectric generator module 32 is arranged between the first and the second guides 40, 50.
- the first guide 40 is configured to guide the heat flow relative to the ambient air to the thermoelectric generator module 32 while the second guide 50 is configured to guide the heat flux relative to the ground at a predetermined temperature to the thermoelectric generator module 32.
- the first guide 40 and the second guide 50 are made of thermally conductive material whose thermal conductivity is advantageously at least 40 W / mK.
- the thermal conductivity is at least 50 W / mK.
- the value of the thermal conductivity of the material of the first guide is high, the efficiency of the thermoelectric generator module 32 of energy recovery is good.
- a value of 50 W / mK provides a good compromise between the effective energy recovery efficiency and the production cost of the presence detection module 10.
- the first guide 40 and the second guide 50 are made of anodized aluminum.
- the first guide 40 has a first end 42 facing the thermoelectric generator module 32 and a second end 44 opposite the first end 42 and in contact with the ambient air.
- the exchange surface 45 of the second end 44 in contact with the air is preferably black to promote the absorption of energy by radiation from the air, especially infrared radiation.
- thermoelectric generator module 32 the larger the exchange surface 45 of the second end 44 in contact with the air, the better the efficiency of the first guide 40 and therefore the thermoelectric generator module 32 is good.
- the first guide 40 has a geometry similar to that of the body
- the first guide 40 has a cylindrical geometry with the same longitudinal axis as the cylindrical body 18.
- the first guide 40 comprises a receptacle 46 housing at least the presence detector 20.
- the receptacle 46 is closed for example by a removable cover configured to protect the inside of the receptacle from the outside environment, in terms sealing, compression due to vehicles, or vandalism.
- the second guide 50 and the body 18 are configured to provide a space between the second guide 50 and the body 18, the space accommodating at least the presence detector (20).
- This configuration makes it possible to protect the interior of the landscaped space from the outside environment with a minimum of structural elements since the first guide 40 simultaneously acts as a cover.
- first guide 40 is removably arranged in the body 18 of the detection module 10 in order to carry out possible maintenance operations as illustrated in FIG. - -
- the detection module 10 comprises one or more O-rings 47 of sealing arranged between the first guide 40 and the body 18 to ensure the tightness of the module in particular during the introduction of the first guide 40 in the body 18.
- the O-rings are configured to withstand possible soil aggression and possible liquid infiltration.
- the body 18 further comprises a shoulder 48 forming a stop for the first guide 40 when it is put into place in the body 18 so as not to damage the thermoelectric generator module 32
- the second guide 50 has a first end 52 facing the thermoelectric generator module 32 and a second end 54 opposite the first end 52 and in direct contact at least partially with the ground.
- the second end 54 facing the ground has a plurality of fins 56 forming heat energy efficient means of exchange with the ground and a means of hooking solid to the sealant 16 which holds the module 10 presence detection in place in the ground.
- thermoelectric generator module 32 is good.
- the second guide 50 has a geometry similar to that of the body 18 and the first guide 40.
- the second guide 50 has a cylindrical geometry having the same longitudinal axis as the cylindrical body 18 and the first guide 40.
- the module 10 comprises a seal 60 of thermal conductive material arranged at the interface between the thermoelectric generator module 32 and the second guide 50.
- the seal 60 is further configured to compensate for clearances and deformations due to mechanical compressions or deformations due to aging of the materials.
- the thermal conductivity of the seal is at least equal to 0.5 W / mK
- the thermal conductivity of the seal is at least equal to 1W / mK. A value of 1 W / mK ensures a good compromise between the effectiveness of the seal. - -
- the seal 60 arranged between the thermoelectric generator module 32 and the second guide 50 is made of graphite-filled silicone.
- the presence detection module 10 advantageously comprises a layer 65 of thermal insulating material covering the inner surface of the body 18 in contact with the first guide 40, the second guide 50, the thermoelectric generator module 32 and the gasket 60 in order to thermally isolating the thermoelectric generator module 32 from the outside temperature to the presence detection module 10.
- the layer is expanded polystyrene.
- the exchange surface between the body 18 and the first guide 40, the second guide 50, the thermoelectric generator module 32 and the seal is advantageously minimized by providing orifices 19 in the body in order to thermally isolate the generator module thermoelectric sensor 32 from the outside temperature to the presence detection module 10.
- the presence detection module 10 further comprises a communication means 70 connected to the presence detector 20 and configured to send to a remote entity information relating to the presence detected by the presence detector 20.
- the communication means 70 is a means of high frequency communication.
- the communication means 70 is housed in the receptacle 46 housing the presence detector 20.
- the communication means 70 is configured to be powered by the power generator 30.
- the body 18 of the presence detection module 10 is configured to also receive the communication means 70.
- the communication means 70 is housed in the receptacle 46 of the first guide 40.
- the presence detection module 10 may also include a power storage unit 80 connected to the presence detector 20 and the power generator 30. It is configured to store at least a portion of - - the energy generated by the power generator 30 and to supply at least part of the presence detector 20.
- the energy storage unit 80 is a battery or a supercapacitor. This energy storage unit 80 thus makes it possible to supply the power generator 30 by returning the stored energy to the presence detector 20, especially when the climatic conditions are such that the difference in temperature between the air and the ground is not more than enough to power the presence detector 20.
- the energy storage unit 80 is housed in the receptacle 46 housing the presence detector 20.
- thermoelectric generator module for detecting the presence of a vehicle on a parking space according to the invention has the advantage of being autonomous in energy. Indeed, such a thermoelectric generator module is capable of producing an electric power of the order of milliwatt, sufficient to implement a radar and / or magnetic detection and to ensure the sending of information relating to this detection via a high frequency network, long range.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1660867A FR3058553B1 (fr) | 2016-11-09 | 2016-11-09 | Module autonome de detection de presence d'un vehicule sur un emplacement de stationnement |
PCT/EP2017/078727 WO2018087212A1 (fr) | 2016-11-09 | 2017-11-09 | Module autonome de détection de présence d'un véhicule sur un emplacement de stationnement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3539114A1 true EP3539114A1 (fr) | 2019-09-18 |
Family
ID=57750263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17805120.7A Withdrawn EP3539114A1 (fr) | 2016-11-09 | 2017-11-09 | Module autonome de détection de présence d'un véhicule sur un emplacement de stationnement |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3539114A1 (fr) |
FR (1) | FR3058553B1 (fr) |
WO (1) | WO2018087212A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114814811A (zh) * | 2022-06-27 | 2022-07-29 | 深圳市佰誉达科技有限公司 | 一种雷达车位检测方法、设备及计算机可读存储介质 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013223669A1 (de) * | 2013-11-20 | 2015-05-21 | Robert Bosch Gmbh | System zur Erkennung einer Belegung eines Fahrzeugparkplatzes |
JP6213246B2 (ja) * | 2014-01-10 | 2017-10-18 | 富士通株式会社 | 駐車監視センサモジュール及び駐車監視システム |
WO2015113303A1 (fr) * | 2014-01-30 | 2015-08-06 | Siemens Aktiengesellschaft | Détecteur de véhicule |
-
2016
- 2016-11-09 FR FR1660867A patent/FR3058553B1/fr active Active
-
2017
- 2017-11-09 EP EP17805120.7A patent/EP3539114A1/fr not_active Withdrawn
- 2017-11-09 WO PCT/EP2017/078727 patent/WO2018087212A1/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR3058553B1 (fr) | 2021-01-01 |
FR3058553A1 (fr) | 2018-05-11 |
WO2018087212A1 (fr) | 2018-05-17 |
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