How to choose the right magnetometer for your shared parking plan

The "Beijing Motor Vehicle Parking Management Regulations (Draft)" recently reviewed proposes that individuals or units can carry out parking berths with compensation when they are paid. The residential community can open the construction parking facility to the society if it meets the parking needs of residents in the residential community. State organs, organizations, enterprises and institutions have the conditions to open motor vehicle parking facilities to the public and can implement paid use. In the process of sharing the parking space at the wrong time, the parking facility management unit shall provide support and cooperation and provide convenience. (July 24 People)

The shortage of parking spaces is the crux of parking difficulties in many cities, but the low utilization rate of parking spaces is also a factor that cannot be ignored. The data shows that there are nearly 2.6 million parking spaces in Beijing. At the same time, 25% to 30% of parking spaces in Beijing are idle or semi-idle. This shows the root cause of the difficult parking problem in the current city. It is not only the number of supporting parking spaces that is difficult to keep up with the pace of the automobile era. The layout and usage mode of the parking spaces are also relatively backward, and the effective utilization rate of parking spaces is not high. On the one hand, there is demand but no parking space is available; on the other side, there are surplus parking spaces, but they are not used effectively, which makes it possible to share the wrong time; for many commercial organizations, the parking facilities are more relevant. Sources, parking facilities have a much greater impact on the industry economy than imagined.

On the one hand, shared parking is conducive to increasing the comprehensive utilization rate of parking spaces. On the other hand, shared parking spaces can be used for owners and enterprises that have parking spaces but are not fully used for saturation. Increase income and reduce parking space costs under the premise;

In the shared parking application, we can monitor the usage of the shared parking space through the magnetometer + low-power RF solution ( NB-IoT , Sub-G , Lora ), update the free parking space in real time, and use it to calculate the time of the next parking space;

ST introduces high dynamic range, high precision, low power and built-in 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 acceleration LIS2DS12 + magnetometer LIS2MDL two-in-one product;

Can be designed to be compatible with ST 2x2 package accelerometer LIS2DS12 and magnetometer LIS2MDL;

Pre-embedded motion algorithms, including high-precision pedometers, step detection, step count calculation, large motion and tilt detection;

Linux driver download address:

https://github.com/STMicroelectronics/STMems_Linux_Input_drivers

AM G Product Technology Forum:

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

MCU driver download address:

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