Abstract: A method of determining a set of association grids, an electronic device, and a storage medium are provided, which relate to a field of computer technology, in particular to fields of Internet of Things, Internet of Vehicles, and big data. A specific implementation includes: gridding a map to obtain a set of candidate grids; selecting a starting grid from the set of candidate grids; performing, based on the starting grid, a filtering operation for determining an existence or a non-existence of a geographic association relationship on the set of candidate grids, to obtain an association grid; repeatedly performing, in response to a determination that the association grid does not meet a condition, the filtering operation by using the association grid, until an obtained association grid meets the condition; and merging the association grid obtained by each filtering operation with the starting grid to obtain a set of association grids.

Abstract: An eye-of-needle terminal, comprising a base portion (1), a pin portion (3), and an elastic portion (2) disposed between the base portion and the pin portion. The elastic portion is provided with an eye-of-needle hole (4), and the extension direction of the eye-of-needle hole is the same as that of the elastic portion. The eye-of-needle hole comprises flared holes (42) located at both ends and a connecting hole (41) located between the two flared holes. The width of the end of each flared hole facing the connecting hole is greater than the width of the end distant from the connecting hole. Thereby not only ensuring that the eye-of-needle terminal is very easy to insert, but also ensuring that the eye-of-needle terminal forms a good connection with a conductive through hole after being inserted and does not easily come out of the conductive through hole.

Abstract: An eye-of-needle terminal, comprising a base portion (1), a pin portion (3), and an elastic portion (2) disposed between the base portion and the pin portion. The elastic portion is provided with an eye-of-needle hole (4), and the extension direction of the eye-of-needle hole is the same as that of the elastic portion. The eye-of-needle hole comprises flared holes (42) located at both ends and a connecting hole (41) located between the two flared holes. The width of the end of each flared hole facing the connecting hole is greater than the width of the end distant from the connecting hole.

Abstract: A seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace is disclosed. A core plate is disposed in the concrete filled steel tubular outer sleeve, and an end portion of the core plate is provided with a core plate stiffening rib. A brace deformation recording device includes two toothed racks, a ratchet gear, a first cord spool, and a second cord spool. The two toothed racks are fixed on the core plate stiffening rib, and ratchet pawls in the length direction thereof face opposite directions. The ratchet gear is fixedly connected to the concrete filled steel tubular outer sleeve. The ratchet gear is disposed between the two toothed racks. A tooth on the ratchet gear is engaged with a ratchet pawl. The first cord spool is fixed on the ratchet gear. The second cord spool is fixed on the core plate stiffening rib.

Abstract: The present invention provides a seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace and a fabricating method thereof, which includes a concrete filled steel tubular outer sleeve. A core plate is disposed in the concrete filled steel tubular outer sleeve, and an end portion of the core plate is provided with a core plate stiffening rib. A brace deformation recording device includes two toothed racks, a ratchet gear, a first cord spool, and a second cord spool. The two toothed racks are fixed on the core plate stiffening rib, and ratchet pawls in the length direction thereof face opposite directions. The ratchet gear is fixedly connected to the concrete filled steel tubular outer sleeve. The ratchet gear is disposed between the two toothed racks. A tooth on the ratchet gear is engaged with a ratchet pawl. The first cord spool is fixed on the ratchet gear. The second cord spool is fixed on the core plate stiffening rib.