Detection system and method for vehicles and number of people in carriages

Abstract

The invention discloses a system and method for detecting the number of people in vehicles and compartments. The system includes: a vehicle-mounted server, which sends a number detection command to a reader; receives a digital signal sent by the reader to determine the number of passengers in the compartment; The reader generates the first radio frequency signal according to the number detection instruction and sends it to the automatic phase modulator; receives the second radio frequency signal sent by the automatic phase modulator, demodulates the signal to obtain a digital signal, and sends it to the vehicle server; The automatic phase modulator performs phase modulation processing on the first radio frequency signal and sends it to the corresponding antenna array module; receives the second radio frequency signal sent by the corresponding antenna array module and sends the signal to the reader; the antenna The array module transmits the phase-modulated first radio frequency signal to the passenger's boarding card, receives the second radio frequency signal sent by the boarding card, and sends the signal to the corresponding automatic phase modulator. The system can accurately determine the number of passengers in the car.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, and more particularly to a detection system of a number of compartments, a method of detecting a number of compartments and a vehicle having the detection system. Background technique [0002] There are two recognition techniques for passengers in the compartment: one is based on the way the camera is recorded in the avatar; the other is based on existing radio frequency identification technology, and the existing RF identification technology is generally based on the whole-to-antenna module. Development, actual use effect is not ideal. [0003] The disadvantage of the prior art is that the effect is not satisfactory. The accuracy of the statistically is not high. The main reason is the antenna used by the RF identification module detection is a general all-to-one antenna (eg, figure 1 As shown, the antenna is characterized by a good direction, but the detection power is not high, for example...

AI Technical Summary

Problems solved by technology

[0002] There are two types of identification technologies for the number of passengers in the compartment: one is based on the way of recording and recording people's head portraits based on cameras; the other is based on existing radio frequency identification technology, and existing radio frequency identification technology is generally based on omnidirectional antenna modules. Development, the actual use effect is not ideal

[0003] The disadvantage of the prior art is that the effect is not ideal, and the accuracy of counting the number of people is not high. The main reason is that the antenna used for the radio frequency identification module detection is a common omnidirectional antenna (such as figure 1 shown), the antenna is characterized by good directivity, but the detection power is not high. For example, under the premise of the same transmission power, for a complex environment such as the carriage, it is obviously impossible to accurately count the passenger tags, so that it cannot be accurately determined The number of people carrying tags in the compartment

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