SU591905A1 - Method of detecting a vehicle and identifying its type and speed - Google Patents

Method of detecting a vehicle and identifying its type and speed

Info

Publication number
SU591905A1
SU591905A1 SU762341078A SU2341078A SU591905A1 SU 591905 A1 SU591905 A1 SU 591905A1 SU 762341078 A SU762341078 A SU 762341078A SU 2341078 A SU2341078 A SU 2341078A SU 591905 A1 SU591905 A1 SU 591905A1
Authority
SU
USSR - Soviet Union
Prior art keywords
vehicle
time
controlled area
speed
boundary
Prior art date
Application number
SU762341078A
Other languages
Russian (ru)
Inventor
Анна Валентиновна Федорова
Original Assignee
Московский Автомобильно-Дорожный Институт
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 Московский Автомобильно-Дорожный Институт filed Critical Московский Автомобильно-Дорожный Институт
Priority to SU762341078A priority Critical patent/SU591905A1/en
Application granted granted Critical
Publication of SU591905A1 publication Critical patent/SU591905A1/en

Links

Landscapes

  • Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)

Claims (1)

Сущность изобретени  состоит в тон что при въезде транспортного средства в контролируемую зону, например, с помощью магнитометра по времени изменени  ЭДС определ ют врем  , в течение которого транспортное средство въезжает в контролируемую зону, пересека  ее первую границу (ширина t конт1ролируемой зоны меньше длины транспортного средства). По длительности пе риода неизменной ЭДС магнитометра опре дел ют врем  Tg, в течение которого транспортное средство полностью перекрывает контролируемую зону, после чего определ ют врем  T|i изменени  ЭДС магнитометра, которое равно времени выезда транспортного средства из контролируемой зоны при пересечении им второй ее границы. При этом производна  изменени  магнитного пот-ока, пронизывающа  контролируемую зону, представл ет собой последовательность двух разнопол рных импульсов, длительность первого из которых с учетом ширины контролируемой зоны определ ет скорость V движени  транспортного средства в момент въезда в нее V } временной интервал между передним и задним фронтами импульсов Т + Tg С-учетом скорости движени  определ ет тип транспортного средства по его длине U- V (Т, + Tj)/ а длительность импульса Т определ ет скорость Vj движени  транспортного средства в момент выезда его из контро лируемой зоны . Разность в длительност химпульсов Т и Tj определ ет ускорение j движени  транспор тного средства . 6(Тг-Т,) T -TjCT +T T Описываемый способ позвол ет опреде лить мгновенное значение скорости двикени  .транспортногЬ средства в данном сечении магистрали, поскольку путь, на котором она измен етс , меньше длииы транспортного средства. Следовательно , тип транспортнШЧ)средства определ етс  с большей точностью, так как временной интервал, определ ющий скорость движени , измер етс  в той же контролируемой зоне, что и временной интервал, определ к ций тип транс- портного средствао Формула изобретени  Способ обнаружени  транспортного средства и определени  его скорости и типа, согласно которому измер ют врем  изменени  магнитного пол  Земли при прохождении транспортным средством первой границы контролируемой зоны,врем  между началом изменени  магнитного пол  Земли при прохождении транспортным средством первой границы контролируемой зоны и моментом времени начала изменени  магнитного пол  Земли при прохождении транспортным средством второй границы контролируемой эо ны, отличающийс  тем, что/ с целью увеличени  объема информации :з режиме движени  транспортного средства и повышени  точности измерений, |)иксируют момент времени конца изме1ени  магнитного пол  Земли при прохождении транспортным средством второй границы контролируемой зоны, определ ют врем  между .мo ieнтaми начала и конца изменени  магнитного пол  Земли при пересечении транспортным средством второй границы контролируемой зоны, сравнивают это врем  с временем изменени  магнитного пол  Земли, при пересечении транспортным средством первой границы контролируемой зоны и по по ученным величинам определ ют ускорение транспортного средства. Источники информации, прин тые во внимание при экспертизе 1„Патент Великобритании №1179841, кл. G, 1 N , ,5 4 Q / G 01 f /, 1971. 2„Патент Австрии № 293922, кл, 74 3 13/ е 08 Г 1/02/, 1971.The invention consists in the fact that when a vehicle enters a controlled area, for example, using a magnetometer, the time during which the vehicle enters the controlled area crosses its first boundary (the width t of the controlled area is less than the length of the vehicle ). The time Tg during which the vehicle completely overlaps the controlled area is determined by the duration of the period of the unchanged EMF of the magnetometer, after which the time T | i of the change of the EMF of the magnetometer is determined, which is equal to the time of departure of the vehicle from the controlled area when it crosses its second border . In this case, the derivative of the magnetic sweep penetrating the controlled zone is a sequence of two different polarity pulses, the duration of the first of which, taking into account the width of the controlled zone, determines the speed V of the vehicle at the time of entry into it V} the time interval between the front and the back edges of the pulses T + Tg, taking into account the speed of movement, determines the type of vehicle along its length U- V (T, + Tj) / and the pulse duration T determines the speed Vj of the vehicle at the time of his departure from the controlled zone. The difference in the duration of the pulses T and Tj determines the acceleration j of the movement of the vehicle. 6 (Tr-T,) T-TjCT + T T The described method allows to determine the instantaneous speed of a two-speed vehicle in a given section of the highway, since the way in which it changes is less than the length of the vehicle. Consequently, the type of transport (HF) is determined with greater accuracy, since the time interval determining the speed of movement is measured in the same controlled area as the time interval, which determines the type of vehicle. Invention Formula determining its speed and type, according to which the time of change of the Earth’s magnetic field is measured when the vehicle passes the first boundary of the controlled area, the time between the start of the change of the Earth’s magnetic field and and the passage of the vehicle of the first boundary of the controlled area and the time of the beginning of the change of the magnetic field of the Earth when the vehicle passes the second boundary of the controlled area, characterized in that in order to increase the amount of information: the vehicle’s driving mode and increase the accuracy of measurements, the time of the end of the change of the Earth's magnetic field when the vehicle passes the second boundary of the controlled zone, the time between .mo. i.n. start and end is changed and the Earth’s magnetic field when the vehicle crosses the second boundary of the controlled area, this time is compared with the time of the Earth’s magnetic field change, when the vehicle crosses the first border of the controlled area and the acceleration of the vehicle is determined using scientific values. Sources of information taken into account in the examination of 1 "UK Patent No. 1179841, cl. G, 1 N,, 5 4 Q / G 01 f /, 1971. 2 „Austrian patent No. 293922, class, 74 3 13 / e 08 G 1/02 /, 1971.
SU762341078A 1976-03-30 1976-03-30 Method of detecting a vehicle and identifying its type and speed SU591905A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU762341078A SU591905A1 (en) 1976-03-30 1976-03-30 Method of detecting a vehicle and identifying its type and speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU762341078A SU591905A1 (en) 1976-03-30 1976-03-30 Method of detecting a vehicle and identifying its type and speed

Publications (1)

Publication Number Publication Date
SU591905A1 true SU591905A1 (en) 1978-02-05

Family

ID=20654585

Family Applications (1)

Application Number Title Priority Date Filing Date
SU762341078A SU591905A1 (en) 1976-03-30 1976-03-30 Method of detecting a vehicle and identifying its type and speed

Country Status (1)

Country Link
SU (1) SU591905A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302426A1 (en) * 1993-01-29 1994-08-04 Honeywell Ag Positioning and=or speed measurement of bodies producing signature signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302426A1 (en) * 1993-01-29 1994-08-04 Honeywell Ag Positioning and=or speed measurement of bodies producing signature signal

Similar Documents

Publication Publication Date Title
FR2370286A1 (en) SPEED MEASUREMENT SYSTEM
DE3770488D1 (en) METHOD FOR DETERMINING FLOWING MATERIALS BY MEANS OF NMR TOMOGRAPHY.
SE7804882L (en) IMPROVED KINETIC METHOD FOR DETERMINING GLUCOSE CONCENTRATIONS WITH GLUCOSDEHYDROGENES
US8135449B2 (en) Imaging of oxygen by phosphorescence quenching
SU591905A1 (en) Method of detecting a vehicle and identifying its type and speed
BE867115A (en) CONTROL SOLUTION FOR DETECTION FOR THE DIAGNOSIS OF SUBSTANCES CONTAINED IN URINE
FR2392395A1 (en) METHOD FOR EVALUATING RADAR PULSE SERIES
CH516800A (en) Method for measuring the speed in flow fields by means of a laser Doppler probe that evaluates light scattered backwards
SU634349A1 (en) Method of measuring vehicle motion parameters and length
SE7608049L (en) NEW APOVINKAMINO DERIVATIVES JEMTE SET FOR THEIR PREPARATION
GB1426231A (en) Motor speed control system
SU649995A1 (en) Method of quantitative analysis of solid phase in fat on the base of magnetic resonance measurements
SU665400A1 (en) Selector of pulses by duration
SU962376A1 (en) Fabric seam sensor
DE2529275C3 (en) Method and circuit arrangement for carrying out the method for measuring vehicle speeds
SU642638A1 (en) Method of determining translational velocity of internal interface in solid bodies
SU756470A1 (en) Device for magnetic recording and reproducing of information
SU1252430A1 (en) Apparatus for checking soil density
SU259025A1 (en) The method of measuring the width of the coal pillar
SU423924A1 (en) METHOD FOR DETERMINING THE LOCATION AND DIRECTION OF THE MOVEMENT OF THE CARBON MACHINE
SU645183A1 (en) Information registering device
SU625694A1 (en) Method of diagnosis of eye orbit and body tumors
SU1422167A1 (en) Apparatus for electrochemical measurements in salt melts
SU615397A1 (en) Method of quntitative determining of poliamine polyacetic acids
SU578627A1 (en) Method of measuring time intervals between electric pulses