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WO1990013069A1 - Procede et dispositif de mesure de temps - Google Patents

Procede et dispositif de mesure de temps Download PDF

Info

Publication number
WO1990013069A1
WO1990013069A1 PCT/SE1990/000261 SE9000261W WO9013069A1 WO 1990013069 A1 WO1990013069 A1 WO 1990013069A1 SE 9000261 W SE9000261 W SE 9000261W WO 9013069 A1 WO9013069 A1 WO 9013069A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
receiver
unit
time measuring
identity
Prior art date
Application number
PCT/SE1990/000261
Other languages
English (en)
Inventor
Joakim Birgerson
Jan Lundgren
Original Assignee
Joakim Birgerson
Jan Lundgren
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 Joakim Birgerson, Jan Lundgren filed Critical Joakim Birgerson
Publication of WO1990013069A1 publication Critical patent/WO1990013069A1/fr

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/22—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games
    • G07C1/24—Race time-recorders
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F8/00—Apparatus for measuring unknown time intervals by electromechanical means
    • G04F8/08—Means used apart from the time-piece for starting or stopping same

Definitions

  • the invention relates to a method and a device for time measuring according to which the time period required for a movement of a vehicle a certain distance is measured by transmitting a signal from at least one transmitter arranged along said distance, by receiving said signal in a receiver provided on said vehicle, said signal initiating the measuring of time, and by stopping said measuring of time when said vehicle passes a transmitter.
  • Drivers of competition vehicles are interested, mainly during training, of being informed continuously of the time running during the movement of said vehicle a certain distance, e.g. a lap of a racing track. The information is crucial when the driver tries to find the most time effective way of maneuvering said vehicle the actual distance or track. However, the driver of the vehicle in practice has no possibilities to take any time measuring steps during the driving.
  • time measuring has previously been taken care of by a staff on the track informing by signs or something similar the driver about lap time or the time passed for driving said distance.
  • the driver it is a great problem to record and assimilate such external information because the driver first of all has to concentrate on the conditions of the track and the condition of the vehicle. If the time indi ⁇ cated is a lap time as is the case on closed tracks, the lap time also is the lap time of the preceding lap which is highly unfavourable. Corresponding conditions apply also in training and competition with boats on water.
  • An object of the invention is to provide, both in respect of reliability and risk minimization, a secure time measuring in a vehicle.
  • the result of the time measuring shall be shown automatically to the driver after a chosen and adjustable delay from the end of the time measuring procedure.
  • Another object is to achieve a simple operation for the driver with a minimized risk of upcoming problems.
  • the device according to the invention shall not be space-requiring or require fixed connections to the power-supply system of the vehicle.
  • the present invention overcomes the problems men ⁇ tioned above, and achieves the objects mentioned above by having obtained the features of the characterizing part of claim and 1 and 3, respectively.
  • FIG. 1 is a schematic block diagram of the device according to the invention
  • FIG. 2 is a more detailed block diagram of the central unit of the device
  • FIG. 3 is a more detailed block diagram of the trans- mitter of the device.
  • FIG. 4 is a more detailed block diagram of the re ⁇ DCver of the device.
  • the device according to the invention comprises a transmitter 10, which in use is disposed on a suitable location along the distance, on ground or on water, in which the vehicle is moving.
  • a transmitter which preferably is disposed in the vicinity of the pit, is used. In this way said transmitter is passed once on each lap made by the vehicle and the time is measured between two successive passes of said transmitter.
  • several transmitters are disposed along the distance of competition and the time is measured *between the passage of a first transmitter to the passage of a second transmitter. Said transmitter will be described in more detail below with reference to FIG. 3.
  • a receiver 11 is provided outside of, or at least exposed on, said car.
  • the signals transmitted from said transmitter are received and subjected to some signal processing in said receiver, said signals then being directed to a central unit 17.
  • the signals received are decoded in a decoding unit 12, which is operatively connected to a time measuring unit 13.
  • the signal processing in said decoding unit is described in more detail below with reference to FIG. 2.
  • An indicating unit 14 is arranged separated from and operatively connected to said central unit and exposed to the driver of the car.
  • the indicating unit comprises a push-button 15 and a display 16.
  • In said display there is indicated first of all the most current measured time, preferably a lap time, after some time delay from the car having passed said transmitter 10.
  • the driver controls by the push-button the time delay by pressing at an appro ⁇ priate spot along said distance said button, the indication of the time measured then being indicated at this spot (after the same delay) the next lap or the next time that spot is passed. It is also possible to choose several occations for indication.
  • Said push-button is used also to turn on the device disposed on the car and belonging to the invention.
  • said decoding unit 12 and time measuring unit 13 in one embodiment of the invention are realized in a computer circuit 22 with a corresponding memory unit 21, in which the program of the computer is stored. From said computer circuit there is also a transmission for statistics and the like of information in the shape of previously measured time values to a storing unit 20. The information is available so as to be trans ⁇ mitted to another computer not shown here for processing and indication. All of the units included in the invention and arranged on the car are connected to a battery 19, the condition thereof continuously being monitored by a monitoring unit 18 so as to avoid functional troubles caused by a reduced capacity of said battery. Error conditions arising are indicated on said display.
  • Said computer circuit 22 are supplied with clock pulses in a conventional way from a clock circuit not shown here and carries out on the basis of said clock pulses and the signals processed in said receiver the actual time measuring.
  • said transmitter comprises transmitting diodes 23, which are connected to an amplifier 24 and which receive from said amplifier the signals to be transmitted.
  • Said amplifier 24 is connected to a control unit 25, in turn being connected to a encoding unit 26 supplying signal codes to said control unit. All units are power supplied by a battery unit 27.
  • said encoding 26 of the trans ⁇ mitter and the decoding unit 12 of the central unit, respectively are adjustable to several different indi ⁇ vidual codes and at least one common code.
  • Several codes are required when several transmitters intended for different receivers are utilized while a common code can be used to several receivers if there is also a common trans- mitter.
  • a common or an individual code is chosen by said push-button 15, for instance by depressing said button during an extended time period.
  • the receiver comprises receiving diodes 28, which are arranged on the car in such a way that the view towards said transmitting diodes 23 is not obstructed when the car passes said transmitter.
  • Said diodes are connected to a preamplifier 29 in which said received signals are amplified before they are fed into a further amplifier circuit 30, a so called AGC.
  • the condi ⁇ tions of light may vary heavily and different sources of interferences can influence the reception of said signals and as each reception procedure is very short (the car has a high velocity) the function of said amplifier circuit 30 is important.
  • the amplifier circuit 30 is connected to a pulse amplifier 31, in turn being connected to a pulse converter 32, in which the signals received are prepared for the decoding in said decoding unit 12.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

Dans le procédé et le dispositif décrits, on mesure la durée nécessaire au déplacement d'un véhicule sur une certaine distance en émettant un signal depuis au moins un émetteur (10) disposé le long de cette distance, en recevant ledit signal dans un récepteur (11) prévu sur ledit véhicule, ledit signal déclenchant la mesure du temps, et en arrêtant ladite mesure lorsque ledit véhicule passe devant un émetteur, en marquant ledit signal avec un code d'identité et en validant la mesure du temps lorsqu'un code d'identité prédéterminé a été enregistré au niveau dudit récepteur. La mesure du temps est déclenchée lorsque la réception dudit code d'identité predéterminé diminue. Le dispositif décrit comprend une une unité centrale (17) reliée fonctionnellement audit récepteur et une unité d'affichage (14) reliée fonctionnellement à ladite unité centrale.
PCT/SE1990/000261 1989-04-21 1990-04-19 Procede et dispositif de mesure de temps WO1990013069A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8901450-0 1989-04-21
SE8901450A SE8901450L (sv) 1989-04-21 1989-04-21 Saett och anordning vid tidmaetning

Publications (1)

Publication Number Publication Date
WO1990013069A1 true WO1990013069A1 (fr) 1990-11-01

Family

ID=20375749

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000261 WO1990013069A1 (fr) 1989-04-21 1990-04-19 Procede et dispositif de mesure de temps

Country Status (3)

Country Link
AU (1) AU5533390A (fr)
SE (1) SE8901450L (fr)
WO (1) WO1990013069A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245334A (en) * 1979-06-29 1981-01-13 Erich Bieramperl Device for measuring and indicating the time between the reception of first and second airborne signals
EP0043671A1 (fr) * 1980-06-26 1982-01-13 Redvers Albert Hocken Système de mesure du temps
GB2117937A (en) * 1982-04-23 1983-10-19 Redvers Albert Hocken A timing system
US4571698A (en) * 1982-11-29 1986-02-18 Armstrong Orin R Apparatus and system for remote timing of plural entities

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245334A (en) * 1979-06-29 1981-01-13 Erich Bieramperl Device for measuring and indicating the time between the reception of first and second airborne signals
EP0043671A1 (fr) * 1980-06-26 1982-01-13 Redvers Albert Hocken Système de mesure du temps
GB2117937A (en) * 1982-04-23 1983-10-19 Redvers Albert Hocken A timing system
US4571698A (en) * 1982-11-29 1986-02-18 Armstrong Orin R Apparatus and system for remote timing of plural entities

Also Published As

Publication number Publication date
SE8901450L (sv) 1990-10-22
AU5533390A (en) 1990-11-16
SE8901450D0 (sv) 1989-04-21

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