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A platform for research: civil engineering, architecture and urbanism
Bus passenger getting-off safety early warning method
The invention relates to bus safety early warning technology and relates to a bus passenger getting-off safety early-warning method. The method can overcome the defects that a bus passenger safe getting-off system is insufficient in detection distance, low in precision, poor in temperature stability, high in false alarm rate and the like. The method comprises the following steps that 1, after feedback signals of a radio frequency front-end module are obtained through a radio frequency front-end module, communication with a CPU is conducted through an ad analog-digital conversion module;; step2, after the signals are communicated with a CPU through an ad analog-to-digital conversion module, the CPU calls a program and parameters in a memory and performs judgment according to a back door opening and closing signal received by a CAN module, and step 3, a transverse distance dyi between a target i and a back door is set as a defined quantity for measuring safe getting-off of passengers;the average braking distance bi is defined, the average braking distance bi data is taken, the interval upper limit of the average braking distance bi data is divided into eight levels of braking distances, and the situation that dangers (-infinity, 5) cannot be formed to passengers is expressed as the safe speed according to empirical values.
本发明涉及一种公交车安全预警技术，具体为一种公交车乘客下车安全预警方法，可解决公交车乘客安全下车系统检测距离不足，精度低，温度稳定性差，错报率高等等缺点，包括如下步骤：步骤1、通过射频前端模块获取射频前端模块的反馈信号后，通过ad模数转换模块与CPU之间进行通信；步骤2通过ad模数转换模块将信号与CPU进行通信后，由CPU调取存储器内的程序和参数，并根据CAN模块接收到的后门开关信号进行判定，步骤3：将目标i与后门的横向距离dyi设置为衡量乘客安全下车的定义量；并定义平均刹车距离bi，所述平均刹车距离bi数据并取其区间上限划分成8个等级的刹车距离，并根据经验值将对乘客无法构成危险(‑∞,5]表示为安全速度。
Bus passenger getting-off safety early warning method
The invention relates to bus safety early warning technology and relates to a bus passenger getting-off safety early-warning method. The method can overcome the defects that a bus passenger safe getting-off system is insufficient in detection distance, low in precision, poor in temperature stability, high in false alarm rate and the like. The method comprises the following steps that 1, after feedback signals of a radio frequency front-end module are obtained through a radio frequency front-end module, communication with a CPU is conducted through an ad analog-digital conversion module;; step2, after the signals are communicated with a CPU through an ad analog-to-digital conversion module, the CPU calls a program and parameters in a memory and performs judgment according to a back door opening and closing signal received by a CAN module, and step 3, a transverse distance dyi between a target i and a back door is set as a defined quantity for measuring safe getting-off of passengers;the average braking distance bi is defined, the average braking distance bi data is taken, the interval upper limit of the average braking distance bi data is divided into eight levels of braking distances, and the situation that dangers (-infinity, 5) cannot be formed to passengers is expressed as the safe speed according to empirical values.
本发明涉及一种公交车安全预警技术，具体为一种公交车乘客下车安全预警方法，可解决公交车乘客安全下车系统检测距离不足，精度低，温度稳定性差，错报率高等等缺点，包括如下步骤：步骤1、通过射频前端模块获取射频前端模块的反馈信号后，通过ad模数转换模块与CPU之间进行通信；步骤2通过ad模数转换模块将信号与CPU进行通信后，由CPU调取存储器内的程序和参数，并根据CAN模块接收到的后门开关信号进行判定，步骤3：将目标i与后门的横向距离dyi设置为衡量乘客安全下车的定义量；并定义平均刹车距离bi，所述平均刹车距离bi数据并取其区间上限划分成8个等级的刹车距离，并根据经验值将对乘客无法构成危险(‑∞,5]表示为安全速度。
Bus passenger getting-off safety early warning method
一种公交车乘客下车安全预警方法
SHI WEI (author) / WAN GUANGXUAN (author) / XIA TAO (author) / ZHANG CHEN (author) / WANG HAO (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
B60Q
ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
,
Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein
/
E05F
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
,
Vorrichtungen zum Bewegen der Flügel in die Offen- oder Schließstellung
/
G08G
Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs
,
TRAFFIC CONTROL SYSTEMS
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