JP2003099852A5

JP2003099852A5 -

Info

Publication number: JP2003099852A5
Application number: JP2002157756A
Authority: JP
Filing date: 2002-05-30
Publication date: 2005-10-06
Anticipated expiration: 2022-05-30

Claims

A plurality of electronic parking meters each determining a time at which a parking space associated with the respective electronic parking meter is occupied by the vehicle, receiving coins and displaying a desired parking time and occupied by the vehicle; An electronic parking meter that indicates when
A plurality of induction loop type vehicle detection sensors, wherein each of the induction loop type vehicle detection sensors is installed to detect the physical presence or absence of the vehicle in the respective parking space, and each signal indicating the presence or absence thereof Inductive loop type vehicle detection sensor that emits
A plurality of microprocessor control units, each control unit corresponding to a corresponding sensor for selectively controlling each corresponding electronic parking meter and each control unit responsive to a respective sensor signal; A microprocessor controller coupled to the electronic parking meter,
Each electronic parking meter indicates the time supplied to the vehicle occupying the parking space at the time of payment to obtain a fixed time according to the payment fee, and the displayed time decreases,
An electronic device that initializes the electronic parking meter to zero when the corresponding sensor transmits to the corresponding control device that the vehicle is no longer occupying the corresponding parking space of the associated meter. Parking meter system.

One of the plurality of parking meters counts the coins to be inserted, and means for setting the parking time according to the amount of coins inserted,
Means for notifying the corresponding microprocessor controller of the amount of coins;
Means for continuously measuring the remaining time of the time;
2. An electronic parking meter system according to claim 1 including means for displaying the time remaining in the corresponding electronic parking meter and flashing "zero" to indicate "zero" time.

2. The electronic parking meter according to claim 1, wherein the corresponding one of the plurality of electronic parking meters further includes means for transmitting to the corresponding control device that the vehicle is in a parking space and no coin is inserted in the meter. system.

An inductive loop vehicle detection sensor that is installed to detect the physical presence or absence of a vehicle in the associated parking space and emits a respective signal that indicates the presence or absence of the vehicle;
  Means for fixing the winding wound several times in order to maintain the orientation of the winding axis and maintain the signal output from the winding;
  An inductive loop consisting of windings spirally wound, embedded in the associated parking space, each end twisted against each other to reduce the electric field effect;
  An electronic parking meter that determines when the parking space associated with the electronic parking meter is occupied by the vehicle, receives coins, displays the desired parking time, and indicates the time occupied by the vehicle;
  An electronic parking meter system comprising a microprocessor controller coupled to a sensor and an electronic parking meter for selectively controlling the electronic parking meter and receiving respective signals indicating the presence or absence of a vehicle from the induction loop Components.

An inductive loop type vehicle detection sensor installed to detect the physical presence or absence of a vehicle in a parking space and emitting respective signals indicating the presence or absence of the vehicle;
  An electronic parking meter that determines when the parking space associated with the electronic parking meter is occupied by the vehicle, receives coins, displays the desired parking time, and indicates the time occupied by the vehicle;
  A microprocessor controller coupled to the sensor and the electronic parking meter for selectively controlling the electronic parking meter and receiving respective signals indicating the presence or absence of the vehicle;
  A component of an electronic parking meter system where the control device initializes the electronic parking meter to zero when a sensor sends to the control device that the vehicle is no longer occupying a parking space.

The detection sensor includes a variable oscillation circuit that vibrates at a fundamental frequency and responds to the inductance of the induction loop to indicate the presence or absence of a vehicle in a parking space;
  The microprocessor controller includes a crystal oscillator that operates at about 50 times the fundamental frequency of the variable oscillator circuit, and further includes the crystal oscillator for controlling the variable oscillator circuit to provide a signal;
  The presence or absence of a vehicle in the parking space, respectively, decreases or increases the inductance of the induction loop, respectively increases or decreases correspondingly to the operating frequency, decreases or increases respectively the period of the variable oscillation circuit, and thus in each period of the variable oscillation circuit Cause the crystal oscillator pulse number to decrease or increase,
  The oscillator provides an output signal including a pulse of the crystal oscillator to the microprocessor controller;
  6. The electronic device according to claim 1, wherein the microprocessor controller counts the number of pulses in a given cycle of operation of the variable oscillation circuit in order to determine the presence or absence of a vehicle in a parking space. Parking meter system.