Title:
METHOD FOR ACQUIRING INSTANTANEOUS RIDING SPEED
Document Type and Number:
WIPO Patent Application WO/2018/058503
Kind Code:
A1
Abstract:
A method for acquiring an instantaneous riding speed, comprising: A) performing initialization (S01); B) a transmitting terminal entering a first stage sleep mode (S02); C) determining an awakening mode of the first stage sleep mode (S03), and when the awakening mode is pairing key awakening, entering a pairing mode (S04); when the wakening mode is first timer awakening, performing step D') (S04'); and when the wakening mode is sensor interrupt awakening, performing step D") (S04"); D') determining whether an interrupt pin of a signal detection transmitting chip detects a pulse signal within a timing period of a first timer (S04'), if so, performing step E') (S07'); otherwise, when the interrupt pin of the signal detection transmitting chip does not detect a pulse signal within a plurality of successive timing periods (S05'), performing step G') (S06'); E') the signal detection transmitting chip sending a data packet of the number of pulses to a receiving terminal in a radio frequency manner (S07'); F') determining whether the transmitting is successful (S08'), and if so, returning to step B) (S02), and performing step H') at the same time (S09'); otherwise, after transmitting a first set time (S10'), returning to step B) (S02); G') the transmitting terminal entering a second stage sleep mode (S06'); H') the receiving terminal using a first-in-first-out mean filtering method to calculate an instantaneous speed (S09'); D") backing up a value of the first timer, and according to the currently detected number of pulses, calculating an average time of each pulse within a current time (S04"), and performing step E") (S05"); and E") sequentially determining whether the average time of each pulse is less than a remaining time of the first timer (S05"), and if so, recovering the value of the first timer (S06"), and returning to step B) (S02); and otherwise, returning to step E') (S07'). The method has lower transmitting power consumption, high reliability, zero loss of pulse number and a wide detection speed range.
Inventors:
WANG YABIN (CN)
CHEN HAI'OU (CN)
CHEN HAI'OU (CN)
Application Number:
PCT/CN2016/101022
Publication Date:
April 05, 2018
Filing Date:
September 30, 2016
Export Citation:
Assignee:
SHENZHEN BELON TECH CO LTD (CN)
International Classes:
G01C23/00; G08C17/02
Foreign References:
| CN102322871A | 2012-01-18 | |||
| CN204854765U | 2015-12-09 | |||
| CN204388865U | 2015-06-10 | |||
| CN204694269U | 2015-10-07 | |||
| CN202735714U | 2013-02-13 | |||
| US20050275561A1 | 2005-12-15 | |||
| JP2000198481A | 2000-07-18 |
Attorney, Agent or Firm:
BEIJING UTC LIANFENG INTELLECTUAL PROPERTY AGENCY(GENERAL PARTNERSHIP) (CN)
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