Abstract: The present application provides a comfortable lightweight bullet-proof and stab-resistant suit and a preparation method thereof. A first aspect of the present application provides a comfortable lightweight bullet-proof and stab-resistant suit, including a sheath and a protection core sheet disposed in the sheath, and the protection core sheet includes a first protection layer, a second protection layer, a third protection layer and a buffer layer which are sequentially stacked together. The bullet-proof and stab-resistant suit provided in the present application has better response protection characteristics in the process of bullet penetration or knife tip stab, and the prepared aramid unidirectional cloth has low areal density, apparent flatness, no bubbles, and excellent softness, so that any bending within 180° can be realized.

Abstract: A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.

Abstract: A ground fault locating method for a power distribution network includes: monitoring each phase line of three phase distribution lines, and in the event of occurrence of waves with fault features, performing wave recording to obtain phase line record files; combining the record files corresponding to each of the three phase lines to obtain fault record files; and synthesizing the fault record files to form a transient record file, determining a fault location according to a wave having a maximum change in wave amplitude between two points in the transient record file, and displaying the fault location in a wiring diagram. The ground fault locating method for a power distribution network can significantly improve accuracy of single-phase ground fault detection.

Abstract: The present invention provides a mobile communication terminal comprising a wireless communication module and a host, wherein the wireless communication module further comprises a first interface connector and a module case; the host reserves positions for the insertion of the wireless communication module, and further comprises a second interface connector corresponding to the first interface connector positioned on the wireless communication module; the wireless communication module is connected to the host via the first interface connector and the second interface connector. The present invention also discloses a wireless communication module which is integrated with a SIM card unit. The present invention can reduce the waste in development and application, and shorten the development period of mobile communication terminals. Thus, the wireless communication module interface is simplified so that the wireless communication module interface is easy to use.

Abstract: The present invention provides a mobile communication terminal comprising a wireless communication module and a host, wherein the wireless communication module further comprises a first interface connector and a module case; the host reserves positions for the insertion of the wireless communication module, and further comprises a second interface connector corresponding to the first interface connector positioned on the wireless communication module; the wireless communication module is connected to the host via the first interface connector and the second interface connector. The present invention also discloses a wireless communication module which is integrated with a SIM card unit. The present invention can reduce the waste in development and application, and shorten the development period of mobile communication terminals. Thus, the wireless communication module interface is simplified so that the wireless communication module interface is easy to use.