摘要:
A robotic arm control system is provided. In, the robotic arm control system, any three points A, B, and C of an object to be determined are picked, thereby creating an original coordinate system. A robotic arm is directed to rotate around the x-axis of the original coordinate system to reach the points B and C. During the rotation of the robotic arm, the three points A, B, and C are recorded by a visual process. A non-linear mapping relation of the original coordinate system and the operation coordinate system is calculated according to length ratios, an angular ratio, and a differential ratio of the difference of the length ratios to the angle between the line A-B and the line A-C, thereby controlling the movement of the robotic arm according to the non-linear mapping relation. The disclosure further provides a robotic arm control method.
摘要:
A robot arm includes a support arm, an adjusting rod and a detecting unit. The adjusting rod rotatably extends through the support arm. The detecting unit is attached to the adjusting rod. The detecting unit includes an image capture device and a probe device. The image capture device captures images of a workpiece. The probe device includes a driving device and a probe. The driving device may drive the probe to move between a first position where the probe does not visually prevent images of the workpiece being captured by the image capture device, and a second position where the probe does block the images of the workpiece being captured by the image capture device.
摘要:
An electronic device and method of automatically testing the transmission lines of a PCB. Design requirements of transmission lines are predetermined and a wiring diagram is acquired according to a designated wiring diagram storage path. Some basic parameters of each transmission line of the diagram are applied in excluding one or more transmission lines which may not meet the design requirements, then, the excluded transmission lines are marked and/or highlighted. A report of the transmission lines is generated using a report template.
摘要:
A method of automatically testing a mobile communication terminal selects a communication frequency band for testing the mobile communication terminal. The mobile communication terminal switches to the selected communication frequency band. One or more service modes, of the mobile communication terminal, which need to be tested under the selected communication frequency band are selected, and a test sequence of the one or more service modes is set. The mobile communication terminal using one of the service modes. Test data of the mobile communication terminal is obtained according to a preset use duration, a test frequency and the test interval of each service mode. A report is generated using the test data.
摘要:
A method for modulating multiple-instruments and multiple-sensors using an electronic device. The electronic device controls an instrument to measure the working parameters of an object, and controls a sensor to detect the working temperature of the object. By comparing the working parameters against a predefined range, and comparing the working temperature against a predefined temperature value, the electronic device determines whether the instrument and the sensor need to be modulated. If any of the working parameters is not within the predefined range or if the working temperature is greater than the predefined temperature value, the electronic device controls the instrument and the sensor to be modulated by using a modulation transfer function and a predetermined direction.
摘要:
A printed circuit board (PCB) includes two layers, two signal transmission traces, and a vertical interconnect access (via). The signal transmission traces are respectively arranged on the layers. The signal transmission traces are electrically connected to each other through the via. A centerline of the via with a vertical line of the layers form an acute angle θ, the angle θ is less than cos−1[(Lv2−Lt2)/(Lv2+Lt2)]. Wherein Lt is loss of the two signal transmitting traces in a unit length, and Lv is loss of the via in a unit length.
摘要:
Parameters of a radio frequency filter can be changed by changing structure of each component of the filter. Material of each component, diameters of each of magnetic cylinders, density of each of conductive coils, thickness of a dielectric layer, and thickness of an insulation tube can be changed. When any component needs to be replaced, each cover is rotated, with connection partitions move to two slots of a resisting portion, to detach the filter.
摘要:
A system and method uses a measurement control device and a measurement machine to measure pin voltages of electronic components installed in an electronic device. The measurement control device controls a mechanical arm of the measurement machine to move to the pins of the electronic components according to coordinates of the pins. A voltage probe installed on the end of the mechanical arm can measure voltages of the pins automatically.
摘要:
A printed circuit board can support different connectors by selectively setting connection components on the printed circuit board without changing wiring of transmission lines or making new vias in the printed circuit board.
摘要:
A bearing includes a main body, a plurality of first magnetic members, a plurality of second magnetic members, and a plurality of friction members. The main body defines a pivot hole, and a plurality of first receiving portions and a plurality of second receiving portions around the pivot hole. Each of the second receiving portions defines a cutout. The first magnetic members are received in the first receiving portions. The second magnetic members together with the friction members are received in the second receiving portions, thus generating a repelling force between the first magnetic members and the second magnetic members to impel the friction members to partially extend out of the cutouts.