Abstract: A signal generation and transmission system includes a modulator and an RF transceiver. The RF transceiver includes a voltage-controlled oscillator, a power divider, a low-pass filter, a low-noise amplifier and a mixer. The voltage-controlled oscillator receives a signal from the modulator and produces a frequency modulated continuous wave signal. The power divider receives the frequency modulated continuous wave signal from the voltage-controlled oscillator. The low-pass filter receives the frequency modulated continuous wave signal from the power divider. The low-noise amplifier receives, amplifies and transfers a target echo signal. The mixer combines the frequency modulated continuous wave signal from the power divider with the echo signal of target from the low-noise amplifier so that the two signals are added up or subtracted from each other in a frequency band.

Abstract: An inertia micro-switch includes a shell, a cell unit and an actuator. The shell includes a drum placed between an upper unit and a lower unit. The cell unit is placed in the shell. The actuator includes a housing unit, a lower conductive rod, two movable elements and a hit-taking unit. The housing unit is placed in the vicinity of the cell unit in the shell. The lower conductive rod is placed in the housing unit and connected to the cell unit. The movable elements are placed in the housing unit. The hit-taking unit moves the movable elements and hence contacts the lower conductive rod when it takes a hit.

Abstract: A fuze includes a shell, a plunger a firing pin unit, a spring, a receptacle, a plurality of detents, a detonation unit and a restraint unit. The plunger is movably provided in the shell. The firing pin unit is movably provided in the shell, in the vicinity of the plunger. The spring is compressed between the plunger and the firing pin unit. The receptacle is provided in the shell and movably connected to the firing pin unit. The detents are movably provided between the firing pin unit and the receptacle. The detonation unit is movably provided in the receptacle opposite to the detents. The restraint unit is provided in the shell and movably connected to the detonation unit.

Abstract: A shoe apparatus includes a shoe, a power supply and a wireless transmitter. The shoe is to be worn by a user. The power supply is provided in the shoe for generation and storage of electricity. The power supply includes a battery, a first generator unit electrically connected to the battery and a second generator unit electrically connected to the battery. The wireless transmitter is provided in the shoe and electrically connected to the power supply for wireless communication of data with a remote device.

Abstract: A fuze includes a shell, a plunger a firing pin unit, a spring, a receptacle, a plurality of detents, a detonation unit and a restraint unit. The plunger is movably provided in the shell. The firing pin unit is movably provided in the shell, in the vicinity of the plunger. The spring is compressed between the plunger and the firing pin unit. The receptacle is provided in the shell and movably connected to the firing pin unit. The detents are movably provided between the firing pin unit and the receptacle. The detonation unit is movably provided in the receptacle opposite to the detents. The restraint unit is provided in the shell and movably connected to the detonation unit.