Wireless Magnetic Sensor Node for Vehicle Detection With Optical Wake-Up

Sifuentes, Ernesto; Casas, Óscar; Pallás-Areny, R.

doi:10.1109/jsen.2010.2103937

Cited by 139 publications

(62 citation statements)

References 6 publications

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“…The innovation of this paper is to reduce the amount of information and reduce the energy consumption of information collection on the basis of providing the same amount of information. The low power consumption vehicle detection system presented in this paper is 2 orders of magnitude lower in power consumption compared with the low-power nodes proposed in document [10]. Because of low power consumption, the proposed system can use battery as power supply.…”

Section: Resultsmentioning

confidence: 97%

Design of Low Power Vehicle Sensing Device Based on Smart City

Xu¹,

Ruan²

2018

dteees

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Abstract. At present in China, the occurrence frequency of haze increases every year. The air quality reached severe pollution situation in more than 20 provinces and 100 cities. The pollutants from motor vehicles in cities are the main contributor to haze, while the speed and flow of motor vehicles are the main factors affecting the pollutants in small range. In this paper, the author presents a design method for low power and low data vehicle detection system used in intelligent city monitoring, which replaces the existing intelligent measurement and detection device. The innovation point is to reduce the amount of information and reduce the energy consumption of information collection on the basis of providing the same amount of information. The low power consumption vehicle detection system presented in this paper is 2 orders of magnitude lower in power consumption compared with the traditional detection system; compared with the video detection system, the amount of data is 3 orders of magnitude lower.

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Section: Resultsmentioning

confidence: 97%

Design of Low Power Vehicle Sensing Device Based on Smart City

Xu¹,

Ruan²

2018

dteees

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“…From the author's point of view, future work on direct interface circuits could be focused on the following two directions: (a) Applications: Many measurement systems based on resistive and capacitive sensors, but especially those intended for low-cost low-power applications, could benefit from the advantages of direct interface circuits. In fact, recently, such circuits have been proposed to measure low-power magnetic sensors for vehicle detection [30], low-power gas sensors [19] and low-cost low-power RH sensors to be integrated into RFID labels [27]. (b) Measurement of other types of sensor: Most of the research work done so far on direct interface circuits has been focused on measuring resistive and capacitive sensors, but the direct measurement of other types of sensor is also of interest.…”

Section: Discussionmentioning

confidence: 99%

The Art of Directly Interfacing Sensors to Microcontrollers

Reverter

2012

JLPEA

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This paper reviews the direct connection of sensors to microcontrollers without using any analogue circuit (such as an amplifier or analogue-to-digital converter) in the signal path, thus resulting in a low-cost, lower-power sensor electronic interface. It first discusses the operating principle and explains how resistive and capacitive sensors with different topologies (i.e., single, differential and bridge type) can be directly connected to a microcontroller to build the so-called direct interface circuit. It then shows some applications of the proposed circuits using commercial devices and discusses their performance. Finally, it deals with the power consumption and proposes some design guidelines to reduce the current consumption of such circuits in active mode.

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“…In contrast, passive low-power optical sensors can detect the shadow cast by cars but are prone to false detections. Recently, the use of optical triggering to wake up a magnetic sensor, namely combining the light dependent resistor and GMR sensor, has been developed for long-term vehicle static detection, which can significantly reduce the current drain to only 5.5 µA [62]. This compact, reliable, low-power sensor node is very useful for intelligent parking service, particularly for PAC of EVs.…”

Section: Detection Of Vehicle Occupancy and Speedmentioning

confidence: 99%

State-of-the-Art Electromagnetics Research in Electric and Hybrid Vehicles (Invited Paper)

Chau¹,

Jiang²,

Han³

et al. 2017

PIER

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Abstract-There is no doubt that electrified vehicles are superseding internal combustion engine vehicles for road transportation. Among them, electric vehicles (EVs) have been identified as the greenest road transportation while hybrid EVs have been tagged as the super ultra-low emission vehicles. In this paper, the definition, classification, merits and demerits of electric and hybrid vehicles are first introduced. Then, after revealing their multidisciplinary technologies and development trends, the state-of-the-art electromagnetics research in electric and hybrid vehicles are discussed, with emphasis on electric motors for electric propulsion, electric machine systems for hybrid propulsion, wireless power transfer technologies for park-and-charge a well as move-and-charge, electromagnetic interference and compatibility issues in EVs, electromechanical flywheels for energy storage and magnetic sensors for EV operation. Meanwhile, the development trend of these research areas is revealed.

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Wireless Magnetic Sensor Node for Vehicle Detection With Optical Wake-Up

Cited by 139 publications

References 6 publications

Design of Low Power Vehicle Sensing Device Based on Smart City

Design of Low Power Vehicle Sensing Device Based on Smart City

The Art of Directly Interfacing Sensors to Microcontrollers

State-of-the-Art Electromagnetics Research in Electric and Hybrid Vehicles (Invited Paper)

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