WO1998019285A1 - Systeme de gestion de parking - Google Patents

Systeme de gestion de parking Download PDF

Info

Publication number
WO1998019285A1
WO1998019285A1 PCT/DE1997/002381 DE9702381W WO9819285A1 WO 1998019285 A1 WO1998019285 A1 WO 1998019285A1 DE 9702381 W DE9702381 W DE 9702381W WO 9819285 A1 WO9819285 A1 WO 9819285A1
Authority
WO
WIPO (PCT)
Prior art keywords
control system
parking garage
devices
signal
evaluation unit
Prior art date
Application number
PCT/DE1997/002381
Other languages
German (de)
English (en)
Inventor
Lutz Kahlbau
Thomas KÖLPIN
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO1998019285A1 publication Critical patent/WO1998019285A1/fr

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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
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/539—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section

Definitions

  • the invention relates to a parking garage control system with at least one control and evaluation unit and with ultrasonic proximity switches connected to it, which are used to determine the occupancy status of the parking spaces in the parking garage by means of ultrasonic distance measurement.
  • a generic car park guidance system is known.
  • the ultrasonic proximity switches used here which detect vehicles as objects, can be parameterized and connected to the central control and evaluation unit via a bus system.
  • the ultrasonic proximity switches that monitor the occupancy status are mounted above the individual parking spaces with the direction of floor detection.
  • an energy and signal bus system e.g. an actuator sensor interface is used.
  • the individual or several such central control and evaluation units control the flow of traffic in the parking garage via illuminated displays.
  • the ultrasonic proximity switches e.g. after receiving a corresponding parameterization command from the control and evaluation unit when the car park is unoccupied.
  • the proximity switches determine the respective distance from the floor of the parking space and save this as a reference distance in the individual device.
  • a parking space is then recognized as occupied when the proximity switch no longer recognizes the ground echo within a predefined tolerance band.
  • the invention has for its object to expand a parking garage control system of the type mentioned above in such a way that even unauthorized acts on vehicles or in their environment can be detected.
  • the ultrasonic proximity switches include devices for signal analysis which analyze the electrical output signal of the ultrasonic transducers during the reception cycle with regard to typical signal parts which are superimposed on the echo signal caused by the ultrasonic distance measurement.
  • the devices are designed as filters in the time and / or frequency domain.
  • the devices work on the basis of digital signal analysis and pattern recognition.
  • the ultrasonic proximity switches For communication with the control and evaluation unit, the ultrasonic proximity switches send a response telegram via a bus system, which contains an information part.
  • the result of the signal analysis is advantageously reported to the control and evaluation unit via the information part contained in the response telegram of the ultrasonic proximity switch.
  • an illegal act can be located within the parking garage. This is special This is advantageous because, depending on the result reported to the control and evaluation unit, cameras located in the area of the proximity switch concerned are switched on. After viewing the area in question, the operating personnel of the parking garage can decide on a screen in a monitoring center whether intervention is necessary in the case in question.
  • Devices for the signal path for example in the form of a bus system, are usually present for the proximity switch function. These are advantageously also used by the signal analysis devices in order to save costs.
  • FIG. 1 shows a basic circuit diagram of a parking garage control system and FIG. 2 shows the basic structure of an ultrasonic proximity switch of the parking garage control system according to FIG. 1.
  • the ultrasonic proximity switch 1 shows the basic structure of a parking garage control system, in which an ultrasonic proximity switch 1 with the detection direction floor is installed above the individual parking spaces.
  • the ultrasonic proximity switches 1 are connected via an energy and signal bus 2, e.g. an actuator interface connected as a line to at least one central control and evaluation unit 3.
  • an alarm or reporting system 4 and a counting device 5 can be connected to the control and evaluation unit 3 for theft monitoring of vehicles.
  • the control and evaluation unit 3 controls the flow of traffic in the parking garage in a known manner by means of illuminated displays, after the occupancy addition has been made with the aid of the ultrasonic proximity switches 1. the parking space was recorded. During commissioning, the control and evaluation unit 3 issues a parameterization command to the ultrasonic proximity switch 1 via the energy and signal bus system 2 in the unoccupied parking garage, which then determine the respective distance from the floor of the parking space and in the individual ultrasonic proximity switch 1 as a reference distance to save. If the proximity switch no longer recognizes the ground echo within a predetermined tolerance band, this is recognized as occupancy of the parking space. In this way, the occupancy status is determined independently of the respective vehicle height.
  • the ultrasonic proximity switches 1 of the parking garage control system include devices 6 for signal analysis (see FIG. 2). They analyze the electrical output signal 7 of the ultrasound transducers 8 during the reception cycle with regard to typical signal components which are superimposed on the echo signal caused by the ultrasound distance measurement. These devices 6 can be designed as filters in the time and / or frequency domain. You can work on the basis of digital signal analysis and pattern recognition. With these devices 6, unlawful acts with characteristic signal forms can be detected. Breaking window panes cause typical noise emissions in the 90 to 130 kHz range. The dropping of metallic tools is detectable in the upper hearing frequency range, while cries for help from attacked people have their energy maxima in the range of medium and lower hearing frequencies. If necessary, devices of the signal path available for the proximity switch function can also be used. However, a simple microphone can also be used in addition to the ultrasound transducer 8 which is present anyway.
  • Illegal actions can be located easily with the additional devices 6 for signal analysis, because the ultrasonic proximity switches 1 in question send a corresponding result of the signal analysis to the control and evaluation unit 3. Cameras installed in the vicinity of the ultrasonic proximity switch 1 in question allow the area in question to be observed by operating personnel in a central location and in this way enable one timely intervention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

La surveillance d'un parking peut également inclure la détection d'actes frauduleux comme par exemple le bris de glaces, l'utilisation d'outils pour démonter des pièces détachées sur des véhicules automobiles ou bien des agressions sur des personnes. Les détecteurs de proximité ultrasonores (1) installés dans un système de gestion de parking sont utilisés à cet effet. Ils sont équipés en outre de systèmes d'analyse des signaux, qui analysent les composantes typiques du signal de sortie électrique (7) des transducteurs ultrasonores (8) pendant le cycle de réception.
PCT/DE1997/002381 1996-10-29 1997-10-16 Systeme de gestion de parking WO1998019285A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19644981 1996-10-29
DE19644981.2 1996-10-29

Publications (1)

Publication Number Publication Date
WO1998019285A1 true WO1998019285A1 (fr) 1998-05-07

Family

ID=7810335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/002381 WO1998019285A1 (fr) 1996-10-29 1997-10-16 Systeme de gestion de parking

Country Status (1)

Country Link
WO (1) WO1998019285A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560624A1 (fr) * 1984-03-01 1985-09-06 Ferre Jean Systeme antivol pour parkings pourvu d'un poste central de surveillance
FR2625857A1 (fr) * 1988-01-13 1989-07-13 Millon Serge Dispositif de telecommande et de telesurveillance des parcs de stationnement d'automobiles ou autres
WO1989011711A1 (fr) * 1988-05-26 1989-11-30 Chambre De Commerce Et D'industrie De Bordeaux Procede de surveillance d'emplacements affectes au depot d'objets et dispositif pour sa mise en oeuvre
DE4030607A1 (de) * 1990-09-27 1992-04-16 Siemens Ag Nach dem radarprinzip konzipiertes ueberwachungssystem zur ueberwachung eines objektes
WO1993001567A1 (fr) * 1991-07-08 1993-01-21 Philippe Schick Procede et systeme pour la gestion d'un parking

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560624A1 (fr) * 1984-03-01 1985-09-06 Ferre Jean Systeme antivol pour parkings pourvu d'un poste central de surveillance
FR2625857A1 (fr) * 1988-01-13 1989-07-13 Millon Serge Dispositif de telecommande et de telesurveillance des parcs de stationnement d'automobiles ou autres
WO1989011711A1 (fr) * 1988-05-26 1989-11-30 Chambre De Commerce Et D'industrie De Bordeaux Procede de surveillance d'emplacements affectes au depot d'objets et dispositif pour sa mise en oeuvre
DE4030607A1 (de) * 1990-09-27 1992-04-16 Siemens Ag Nach dem radarprinzip konzipiertes ueberwachungssystem zur ueberwachung eines objektes
WO1993001567A1 (fr) * 1991-07-08 1993-01-21 Philippe Schick Procede et systeme pour la gestion d'un parking

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