The new era of public safety π÷and urban lifeline project is to weave an a↔₹₹✔ll-round and three-dim®™λensional public safety net for the >≥city, reducing the potential safe≥φty risks such as flooding, fire, gas leakage a€♠₽∏nd explosion in households, public serviceπγ facilities, urban complexes, densely popπ£ ☆ulated places, high-ri∏☆'λse buildings, underground Spaces andγ↑ underground pipe networks.♣♥ The ultimate goal is a better society: ∞♥healthy, safe and resilient cities th₩γat provide residents with convenient services, cl™'δ£ean and safe energy, comfortableαγπ← and safe housing and efficientα→ε© transportation solutions λ. The order of magnitude of th"σ"e use of scientific and technological adσεvantages to overcome urba€γλn challenges, such as pollutant discharge m<¶onitoring, food safety testing, safe applicat☆≤÷£ion of energy, water environment moni☆ ≠toring, home and public space safety preventio∞•n, etc., to contribute to the res&☆$βearch and development of future cities.♣→""