Crowd sensing is a promising sensing paradigm. which mainly uses a variety of embedded sensors in a large number of mobile devices to accomplish data sensing tasks. One of the key issues in crowd sensing is how to effectively coordinate mobile device users to perform multiple sensory tasks simultaneously. By introducing a new data layer between the sensing task and the user. https://www.roneverhart.com/HP-Pavilion-15-eg2373cl-15-6-FHD-Touch-Laptop-Intel-Core-i7-1255U-3-50-GHz-GeForce-MX550-16GB-DDR4-512GB-SSD-Windows--p8309/