How to choose the right magnetometer for your shared parking plan

The draft of the "Beijing Motor Vehicle Parking Management Regulations" has been reviewed recently, proposing that individuals or entities can engage in paid parking space rentals when appropriate. Residential communities can open their parking facilities to the public if the needs of residents within the community are met. Government agencies, organizations, businesses, and institutions are encouraged to make their parking facilities accessible to the public and may charge fees for their use. During the process of sharing parking spaces during off-peak times, the management unit should provide support and facilitate this arrangement. (July 24, People's Daily)

The shortage of parking spaces is a key issue in many cities, but the underutilization of existing parking spaces is another critical factor. Data indicates that Beijing has approximately 2.6 million parking spaces, yet 25% to 30% of these spaces remain idle or partially unused. This highlights the root cause of urban parking challenges. It’s not just about insufficient numbers of parking spaces keeping up with the rapid growth of vehicles; the layout and operational models of parking spaces are outdated, leading to inefficient usage rates. While there is demand for parking, some spaces go unused, while others remain vacant, creating opportunities for shared parking initiatives. For many commercial entities, parking facilities are a significant resource, and their effective utilization could have a substantial impact on economic performance.

Shared parking not only increases the overall efficiency of parking space usage but also benefits owners and businesses with underutilized parking spaces by generating additional income while reducing parking space costs. Through applications like magnetic sensors combined with low-power RF solutions (such as NB-IoT, Sub-G, and Lora), the occupancy of shared parking spaces can be monitored in real-time, updating available parking spots and aiding in future parking scheduling.

ST offers a range of high-dynamic-range, high-precision, low-power, and temperature-compensated magnetometer products to choose from.

LIS2MDLTR:

2.0x2.0x0.7 mm

Ultra-low power consumption: 200μA @ 20 Hz

High dynamic measurement range: ± 50Ga

Ultra-low noise: Noise RMS [HP] = 2.5 mGa

Integrated high-precision temperature sensor for on-chip temperature compensation

LSM303AHTR

2.0x2.0x1 mm

High-precision 14-bit accelerometer LIS2DS12 paired with a magnetometer LIS2MDL in one compact device;

Compatible with ST’s 2x2 package accelerometer LIS2DS12 and magnetometer LIS2MDL;

Predesigned motion algorithms include precise pedometers, step detection, step counting, large motion, and tilt detection;

Linux driver download address:

https://github.com/STMicroelectronics/STMems_Linux_Input_drivers

AMG Product Technology Forum:

Http://bbs.eeworld.com.cn/stmemsbbs

MCU driver download address:

Http://bbs.eeworld.com.cn/thread-543452-1-1.html