Abstract: The present invention discloses a display panel and a display device. The display panel includes a gate driver circuit and a plurality of driving wires. By disposing gate driver circuits with different distribution density in non-bending frame regions and adjusting corresponding driving wires wired from an output end of the gate driver circuit to a bending displaying region, normal driving of the bending displaying region can be achieved and simultaneously damages to the gate driver circuit during folding can be mitigated or obviated.

Abstract: A GTAW system and a welding method suitable for ultra-narrow gaps, and belongs to the technical field of narrow gap welding. The device includes a argon arc welding machine, a GTAW torch, a welding trolley, a wire feeding device, and a gas protection device. The GTAW torch includes a rotating motor, a rotating tungsten, a conductive system, and a gas supply system. The non-axisymmetric rotating tungsten is drived by the rotating motor through the central rotating shaft. The conductive system is used for connecting and supplying electric power from the argon arc welding machine, and the air supply system is used for providing shielding gas into the welding torch. The GTAW torch is fixed on the welding trolley, and the GTAW torch is moved by the welding trolley, and the wire feeding device moves synchronously with the welding torch.

Abstract: A GTAW system and a welding method suitable for ultra-narrow gaps, and belongs to the technical field of narrow gap welding. The device includes a argon arc welding machine, a GTAW torch, a welding trolley, a wire feeding device, and a gas protection device. The GTAW torch includes a rotating motor, a rotating tungsten, a conductive system, and a gas supply system. The non-axisymmetric rotating tungsten is drived by the rotating motor through the central rotating shaft. The conductive system is used for connecting and supplying electric power from the argon arc welding machine, and the air supply system is used for providing shielding gas into the welding torch. The GTAW torch is fixed on the welding trolley, and the GTAW torch is moved by the welding trolley, and the wire feeding device moves synchronously with the welding torch.

Abstract: A detecting device for detecting the volume of a material in a material container and a concrete pumping apparatus comprising the above detecting device are disclosed. The detecting device comprises a soft container full of a medium; a medium container in communication with the soft container; a volume detecting sensor for detecting the volume of the medium in the medium container; the soft container is provided within the material container and immersed in the material of the material container, and under the extrusion of the material, the medium in the soft container enters the medium container, the volume detecting sensor detects the volume of the medium in the medium container; and the volume of the material can be calculated according to a preset relationship between the volume of the medium in the medium container and the volume of the material in the material container.

Abstract: A matching authentication method for wireless communication equipment comprises that: a device at the transmitting end sends a matching request (S101) to a device at the receiving end; the device at the transmitting end receives the response messages feedback from the device at the receiving end, and the response message carry with feature codes (S102); the device at the transmitting end obtains the feature codes and takes the feature codes as the authentication and authorization codes communicating with the receiving end. The invention also provides a wireless communication device with the function of matching authentication correspondingly. The wireless communication device comprises a memory unit, a communication unit, and an authentication and authorization unit and a feature code updating unit. The invention also provides a wireless communication system with the function of matching authentication correspondingly.

Abstract: An angle measurement device includes a microprocessor, a primary acceleration transducer, an output device, and an auxiliary acceleration transducer. There is a predetermined angle between a positive direction of a primary sensitive axis of the primary acceleration transducer and that of a auxiliary sensitive axis of the auxiliary acceleration transducer; the primary acceleration transducer and the auxiliary acceleration transducer output respectively a first initial parameter and a second initial parameter; the microprocessor obtains a first actual parameter of the primary acceleration transducer according to the first initial parameter, the second initial parameter and the predetermined angle and then gets an angle parameter according to the first actual parameter; the first actual parameter characterizes the parameter of the primary acceleration transducer in the case of no external interference. An angle measurement method and a construction machinery with the angle measurement device is also provided.

Abstract: A matching authentication method for wireless communication equipment comprises that: a device at the transmitting end sends a matching request (S101) to a device at the receiving end; the device at the transmitting end receives the response messages feedback from the device at the receiving end, and the response message carry with feature codes (S102); the device at the transmitting end obtains the feature codes and takes the feature codes as the authentication and authorization codes communicating with the receiving end. The invention also provides a wireless communication device with the function of matching authentication correspondingly. The wireless communication device comprises a memory unit, a communication unit, and an authentication and authorization unit and a feature code updating unit. The invention also provides a wireless communication system with the function of matching authentication correspondingly.