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
  • G07C5/00—Registering or indicating the working of vehicles
  • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
  • G07C5/10—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time using counting means or digital clocks

Definitions

• FRAUD-PROOF VEHICULAR COUNTING SET This invention is intended for primary use on automotive vehicle fleets in order to get and f. to store data concernin / the way these vehicles are opera. ted, to make possible later evaluation.
• the present invention greatly differs both from current linear or coded graphic data recorders and from computerized devices because it classifies the operating conditions in order to accumulate pulses on numerical conunters proportionally to the duration of each operating condition.
• the graphic recorders need graphicvpaper, ink, etc that require workmanship to be setled and removed, while opening the recorder.
• This invention presents data on panel visi ⁇ ble numerical counters which can be easily copied wi ⁇ thout opening the device and without material costs.
• the set _ contains a pulse numerical counter panel (l) which is driven by temporized electrical pulses from the main circuit (2) generated by an internal clock and contro ⁇ lled by internal logic gates which compare the input 15 signal (monitored variables) to the previously set ad ⁇ justable resistors (3).
• the main circuit (2) is built from solid state components mounted on a printed circuit board as usual, the internal references being the adjustable re 20 sitors (3) .
• the main circuit (2) monitors engine speed by means of the electrical frequency generated by the " * alternator (4) of the engine. It also monitors vehicle j speed by means of the frequency generated by a speed
• the invention monitors this two sources of information only, accumu- lating into four counters the following data: a) total engine woring time, b) total engine overspeed time, c) total vehicle overspeed time, d) total stopped vehicle engine functioning time.
• the described four counter embodimet althou. gh requiring a few counters and two information wires only, makes possible to evaluate how long the engine operated on its ideal speed range which is an interme ⁇ diate range betwen the minimum and the maximum achie ⁇ vable speeds. It also makes possible to cheek if the engine had been left at run for a long time while the vehicle was stopped and also to evaluate how long the vehicle was driven at overspeed.
• the circuit turns on warning lights (8) or a warning buzzer (9).
• the ievice points out driving errors, in a certain manner controlling the driver, restringing its action up to what is allo ⁇ wed, so, safety guaranties against violation, and data alteration are a must and are provides, pointing occur.
• rence of fraudulent actions a) an interface (10) which sums the alter ⁇ nate signal generated by the alternator (4) to the power supply voltage, the result being sent through the same wire (15) .
• This interface also restricts the current through this wire to a safe limit in case " of short-circuit to ground or to the power supply.
• This interface is encapsulated in insula- ting resin to prevent short-circuits, humidity and vi- bration, the capsule being so formated to be directly attached to the alternator (4).
• a checking circuit (11) to detect zero voltage from the power and signal wire (15) and to mo ⁇ nitors the transducer (5) impedance.
• This cheking cir- cuit (11) drives the "operative" warn'ing ligth (12) which indicates the device is being properly powered when this light is on, when it is off indicates lack of power, when is flashing indicates lack of power whichwas already restablished.
• this warning light By means of this warning light one can know whether the device suffered a lack of power or information from the alternator (4) since they come together through the same wire (15), as well as if the speed transducer wjl re (16) was open or short circuited; c) a seal on the attachment of the transdu ⁇ cer (5) to the speedmeter shaft (6) to avoid it can be disconnected whithout being noted. d) an hermetic sealed box (14) which conta ins the whole hardware except the speed transducer (5) end the summing interface (10). This box has transparent visors to made the counters contents, the warnign lights and the "operative" indicating light visible.Thetaxis put in the driver's sight.
• the device described herein is requires s an instrument of management, pointint out irregularities that may ruin fleet efficiency, cargo and passenger sa ⁇ fety and comfort. Concomitantly distinguishes the good conductors, leading then to increaded skill.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Combined Controls Of Internal Combustion Engines (AREA)
• Time Recorders, Dirve Recorders, Access Control (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=4039152

Family Applications (1)

Country Status (4)

Cited By (1)

Citations (3)

• 1985
  • 1985-12-04 BR BR8506170A patent/BR8506170A/pt not_active IP Right Cessation
• 1986
  • 1986-12-03 WO PCT/BR1986/000024 patent/WO1987003723A1/en unknown
  • 1986-12-03 AU AU68459/87A patent/AU6845987A/en not_active Abandoned
  • 1986-12-03 EP EP19870900034 patent/EP0248851A1/en not_active Withdrawn

Patent Citations (3)

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