Abstract: Disclosed is an automatically resettable passive swing bolt lock consisting of a lock body and a key. The key can be inserted into a locking hole of the lock body. In the present invention, the lock body comprises a lock housing, a rotary compartment, a lock cover, a reset spring, a pin spring, a pin, a lock body PCB, a motor, a cam, a reset pusher block, and two locking contacts. In the lock body, the rotary compartment is installed inside the lock housing. The lock body PCB, the motor and the cam are installed in an internal cavity of the rotary compartment formed by the lock cover and the rotary compartment. The invention has a small size and a simple structure, and the motor thereof has low power consumption.

Abstract: The application discloses a service invoking method, device, apparatus and medium. The service invoking method includes: receiving a first service request message sent by a service invoking end; determining, in response to the first service request message, header information of the first service request message; determining, under a condition that the header information includes a route identification, a target data center among a plurality of data centers according to the route identification; sending the first service request message to the target data center to enable the target data center to provide service for the service invoking end. Based on the embodiments of the application, efficiency of service invoking can be improved.

Abstract: The application discloses a service invoking method, device, apparatus and medium. The service invoking method includes: receiving a first service request message sent by a service invoking end; determining, in response to the first service request message, header information of the first service request message; determining, under a condition that the header information includes a route identification, a target data center among a plurality of data centers according to the route identification; sending the first service request message to the target data center to enable the target data center to provide service for the service invoking end. Based on the embodiments of the application, efficiency of service invoking can be improved.

Abstract: A magnet system having a pair of parallel plate-like permanent magnets in which magnetic poles of reversed polarities are opposed to each other with a space therebetween. The pair of permanent magnets includes main portions magnetized in the same direction as their thickness direction, and peripheral portions magnetized in a direction different from their thickness direction.