FR3103657B1 - Method of communication between a primary radio frequency unit and a secondary radio frequency unit - Google Patents

Method of communication between a primary radio frequency unit and a secondary radio frequency unit Download PDF

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Publication number
FR3103657B1
FR3103657B1 FR1913332A FR1913332A FR3103657B1 FR 3103657 B1 FR3103657 B1 FR 3103657B1 FR 1913332 A FR1913332 A FR 1913332A FR 1913332 A FR1913332 A FR 1913332A FR 3103657 B1 FR3103657 B1 FR 3103657B1
Authority
FR
France
Prior art keywords
primary
radio frequency
frequency unit
internal
unit
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
FR1913332A
Other languages
French (fr)
Other versions
FR3103657A1 (en
Inventor
Eric Leconte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Comfort and Driving Assistance SAS
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 Valeo Comfort and Driving Assistance SAS filed Critical Valeo Comfort and Driving Assistance SAS
Priority to FR1913332A priority Critical patent/FR3103657B1/en
Publication of FR3103657A1 publication Critical patent/FR3103657A1/en
Application granted granted Critical
Publication of FR3103657B1 publication Critical patent/FR3103657B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/403—Circuits using the same oscillator for generating both the transmitter frequency and the receiver local oscillator frequency
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • 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
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/61—Signal comprising different frequencies, e.g. frequency hopping
    • 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
    • G07C2209/00—Indexing scheme relating to groups G07C9/00 - G07C9/38
    • G07C2209/60—Indexing scheme relating to groups G07C9/00174 - G07C9/00944
    • G07C2209/63—Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle

Abstract

L’invention concerne un procédé de communication (1) entre une unité radio fréquence primaire (A) et une unité radio fréquence secondaire (B) comprenant : - la transmission de ladite unité radio fréquence primaire (A) vers ladite unité radio fréquence secondaire (B) d’un signal primaire (S1) à une fréquence interne primaire (FPLLA1) de ladite unité radio fréquence primaire (A), - la mesure à un instant primaire (t1) d’une phase primaire (ΦBi1) dudit signal primaire reçu (S1’) par ladite unité radio fréquence secondaire (B) à une fréquence intermédiaire secondaire (FIB1) qui correspond à ladite fréquence interne primaire (FPLLA1) moins une fréquence interne secondaire (FPLLB1), - la transmission de ladite unité radio fréquence secondaire (B) vers ladite unité radio fréquence primaire (A) d’un signal secondaire (S2) à ladite fréquence interne secondaire (FPLLB1) de ladite unité radio fréquence secondaire (B), - la mesure à un instant secondaire (t2) d’une phase secondaire (ΦAi) dudit signal secondaire reçu (S2’) par ladite unité radio fréquence primaire (A) à une fréquence intermédiaire primaire (FIA1) qui correspond à ladite fréquence interne secondaire (FPLLB1) moins ladite fréquence interne primaire (FPLLA1), caractérisé en ce que ledit procédé de communication (1) comprend en outre :- la transmission de ladite unité radio fréquence primaire (A) vers ladite unité radio fréquence secondaire (B) d’un signal tertiaire (S3) à la même fréquence interne primaire (FPLLA1), - la mesure à un instant tertiaire (t3) d’une phase tertiaire (ΦBi2) dudit signal tertiaire reçu (S3’) par ladite unité radio fréquence secondaire (B) à ladite fréquence intermédiaire secondaire (FIB1) qui correspond à ladite fréquence interne primaire (FPLLA1) moins ladite fréquence interne secondaire (FPLLB1), avec (t3-t1)/2+t1=t2. Figure pour l’abrégé: Figure. 1aThe invention relates to a method of communication (1) between a primary radio frequency unit (A) and a secondary radio frequency unit (B) comprising: - transmitting from said primary radio frequency unit (A) to said secondary radio frequency unit ( B) of a primary signal (S1) at a primary internal frequency (FPLLA1) of said primary radio frequency unit (A), - the measurement at a primary instant (t1) of a primary phase (ΦBi1) of said received primary signal (S1 ') by said secondary radio frequency unit (B) at a secondary intermediate frequency (FIB1) which corresponds to said primary internal frequency (FPLLA1) minus a secondary internal frequency (FPLLB1), - transmission of said secondary radio frequency unit ( B) to said primary radio frequency unit (A) of a secondary signal (S2) at said secondary internal frequency (FPLLB1) of said secondary radio frequency unit (B), - the measurement at a secondary instant (t2) of a secondary phase (ΦAi) of said secondary signal received (S2 ') by said primary radio frequency unit (A) at a primary intermediate frequency (FIA1) which corresponds to said secondary internal frequency (FPLLB1) minus said primary internal frequency (FPLLA1), characterized in that said method communication (1) further comprises: - transmission from said primary radio frequency unit (A) to said secondary radio frequency unit (B) of a tertiary signal (S3) at the same internal primary frequency (FPLLA1), - the measurement at a tertiary instant (t3) of a tertiary phase (ΦBi2) of said tertiary signal received (S3 ') by said secondary radio frequency unit (B) at said secondary intermediate frequency (FIB1) which corresponds to said primary internal frequency (FPLLA1) ) minus said secondary internal frequency (FPLLB1), with (t3-t1) / 2 + t1 = t2. Figure for the abstract: Figure. 1a

FR1913332A 2019-11-27 2019-11-27 Method of communication between a primary radio frequency unit and a secondary radio frequency unit Active FR3103657B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1913332A FR3103657B1 (en) 2019-11-27 2019-11-27 Method of communication between a primary radio frequency unit and a secondary radio frequency unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1913332 2019-11-27
FR1913332A FR3103657B1 (en) 2019-11-27 2019-11-27 Method of communication between a primary radio frequency unit and a secondary radio frequency unit

Publications (2)

Publication Number Publication Date
FR3103657A1 FR3103657A1 (en) 2021-05-28
FR3103657B1 true FR3103657B1 (en) 2021-10-15

Family

ID=70738606

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1913332A Active FR3103657B1 (en) 2019-11-27 2019-11-27 Method of communication between a primary radio frequency unit and a secondary radio frequency unit

Country Status (1)

Country Link
FR (1) FR3103657B1 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014206496A (en) * 2013-04-15 2014-10-30 株式会社デンソー Distance measuring apparatus
FR3030850B1 (en) * 2014-12-23 2020-01-24 Valeo Comfort And Driving Assistance METHOD FOR CONTROLLING ACCESS TO AT LEAST ONE FUNCTIONALITY OF A MOTOR VEHICLE
FR3044100B1 (en) * 2015-10-19 2018-01-05 Valeo Comfort And Driving Assistance METHOD FOR ESTIMATING DISTANCE AND ELECTRONIC UNIT FOR VEHICLE

Also Published As

Publication number Publication date
FR3103657A1 (en) 2021-05-28

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