Abstract: 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.

Abstract: A system and method that can analyze a temperature rise of a printed circuit board (PCB). The system and method receives attribute parameters of the PCB from an input device, and generates a temperature rise formula according to the received attribute parameters. Additionally, the system and method calculates a temperature rise of a local area surrounding each component on the PCB according to the temperature rise formula.

Abstract: 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.

Abstract: 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.

Abstract: A system and method for calibrating oscillograph channels assigns the same value to a drawing parameter of each channel. Each channel receives a signal sent by a signal generator. The oscillograph calculates a voltage difference between a standard signal voltage of a standard channel defined by a user and a signal voltage of each of the other channels. A sequence relationship between each of the other channels and the standard channel is determined. The oscillograph adjusts a deskew value of each of the other channels until each voltage difference is in an allowable range according to the sequence relationship.

Abstract: 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.

Abstract: A system and method for inspecting layout of a printed circuit board (PCB) provides a graphical user interface (GUI). The GUI displays a layout of the PCB. High side pins of a pulse width modulation (PWM) controller and a component connected to a high side pin are found. If the component is a metallic oxide semiconductor field effect transistor (MOSFET), the system calculate absolute a linear distance and a trace distance between a source pin of the MOSFET and a capacitor pin of a coupling capacitor connected to the source pin. If the linear distance, the trace distance and a capacitance of the coupling capacitor accord with a layout standard, the layout of the PCB is determined to be up to standard.

Abstract: A computer motherboard includes a printed circuit board which includes a central processing unit (CPU) socket and a group of memory slots. The group of memory slots includes an in-line type memory slot and a surface mounted device (SMD) type memory slot. The in-line type memory slot includes a number of plated through holes. The SMD type memory slot is set between the in-line type memory slot and the CPU socket. The through holes of the in-line type memory slot are connected to the CPU socket through traces, pads of the SMD type memory slot are connected to corresponding through holes of the in-line type memory slot having the same pin definition.

Abstract: A method of testing a printed circuit board (PCB) acquires test points from a wiring diagram of the PCB. Frequency domain tested items for each test point and a standard value of each frequency domain tested item are preset. A distance between a preset fiducial point and each test point is computed to create a testing order of the test points according to the distances. The frequency domain tested items of each test point are computed according to the testing order. A pass or a failure of each test point is displayed according to a determination of if each of the computed frequency domain tested items within the corresponding standard value, and a test result of the PCB is output according to the passes or the failures.

Abstract: A testing apparatus is for testing products on an assembly line and includes a worktable, a positioning device, and a testing member. The worktable includes a number of wheels pivotably attached to a bottom thereof, and a number of retractable feet attached to the bottom thereof. The positioning device is attached to the worktable and includes a number of clamping members to position a product to be test. The testing member is attached to the worktable and operated by a control box to move a robot arm with a testing head to test the product.

Abstract: A computer determines a first origin of a first coordinate system of a PCB, and controls a robotic arm to position a probe above the first origin. Furthermore, the computer determines a second origin of a second coordinate system of the robotic arm, and determines displacement values from the first origin to a test point in controlling movements of the robotic arm in the second coordinate system. A graph representing the test point is recognized in an image of the PCB, pixel value differences between the graph center and the image center are determined and converted to displacement correction values for controlling the movements of the robotic arm and determining 3D coordinates of the test point. The robotic arm is moved along a Z-axis of the second coordinate system to precisely position the probe on the test point of the PCB.

Abstract: In a method for optimizing an order in which certain points on a circuit board can be tested and evaluated, a coordinate system is established in a circuit diagram of a circuit board, and at least one locating point is preset. When an operator selects a signal path routing within the circuit diagram, the method can display the testing points in the selected signal path routing on a display device. After calculating the distance between each of the testing points and each of the at least one locating point, a group of distances is obtained. By comparing the distances, the minimum distance can be determined from the group of distances. The method further optimizes the order of the testing points according to the distance between each of the testing points and the locating point that consists of the minimum distance.

Abstract: In a method for testing the charging and discharging reliability of a rechargeable battery, a test device measures the battery to obtain first terminal voltages and first electric currents when the battery is charged by a power supply. After the battery is discharged, the test device measures the battery to obtain second terminal voltages and second electronic currents. Based on the first terminal voltages and the first electric currents, a first lifecycle curve can be created. Based on the second terminal voltages and the second electric currents, a second lifecycle curve is created. The method compares the first lifecycle curve with a charging lifecycle curve, compares the second lifecycle curve with a discharging lifecycle curve, and generates a lifecycle estimation report of the rechargeable battery according to the comparison results.

Abstract: A testing system for bus parameters includes a wave displaying unit and a control module connected to the wave displaying unit. The control module includes a decode unit, a testing unit connected to the decode unit, and an output unit connected to the testing unit. The decode unit is connected to the wave displaying unit. The wave displaying unit is configured for receiving an electronic signal from a bus to be tested. The decode unit is configured for decoding the electronic signal to determine if the electronic signal is valid. The testing unit tests parameters of the bus. The output unit displays testing results for the parameters.

Abstract: A method calibrates a second oscilloscope according to setting values of a first oscilloscope. The setting value of the first oscilloscope is stored into a first file which is readable by any oscilloscope, and also into a second file. Test data obtained from testing an electronic signal using the first oscilloscope is stored into a third file, and waveform data obtained from testing the electronic signal are stored into a fourth file. The second oscilloscope acquires the first file, the second file, the third file, and the fourth file to reset the setting value of the second oscilloscope to the same as the setting value of the first value, for reproducing the test data of the third file and the waveform data of the fourth file.

Abstract: A method for configuring setting values of oscilloscopes selects manufactures for a first oscilloscope and a second oscilloscope, and sends a command of acquiring a type respectively to the first oscilloscope and the second oscilloscope using the control codes of the selected manufacturers, to determine if the selected manufactures are the actual manufacturer. The method sends a command of acquiring setting values, respectively to the first oscilloscope and the second oscilloscope, using the control codes of the selected manufacturers, receives and compares the setting values of the first oscilloscope and the second oscilloscope. The method changes the setting values of the second oscilloscope to be same or similar with the first oscilloscope, and writes the changed setting values into the second oscilloscope.

Abstract: In a method of compensating the center position of a mechanical arm which has a first probe, a second probe, and a platform, a first test point and a second test point are selected on an electronic product and coordinates of the two points are acquired. A distance R between the first probe and the mechanical arm is received, and an angle ? between the platform and a line formed according to the two points is computed to obtain compensated coordinates of the mechanical arm. The mechanical arm moves to the location of the compensated coordinates, and thus locating the first probe and the second probe respectively at the first test point and the second test point.

Abstract: An exemplary actuating mechanism includes a driving shaft and a driven shaft. The driving shaft includes a connecting end. Engaging blocks are formed on the connecting end with a clearance defined between each two neighboring engaging blocks. The driven shaft includes a pivot end. Protruding blocks are formed on the pivot end with a gap defined between each two neighboring protruding blocks. The driving shaft is connected with the driven shaft via the engaging blocks of the connecting end respectively engaged in the gaps and the protruding blocks of the pivot end respectively engaged in the clearances.

Abstract: A product line assembly includes a plurality of containers detachably connected. Each of the plurality of containers includes a case and equipment received in the case. Each container is configured for performing an individual working procedure.

Abstract: An electronic device performs a fire monitoring method in where the electronic device controls a mobile platform to move along a predetermined path, to capture the temperature distribution of an area to be monitored by an infrared capturing device, and detect a consistency of a flammable chemical substance with a smoke detector. The electronic device determines whether the area meets fire conditions by detecting whether the temperature distribution complies with a predetermined temperature distribution, or by detecting whether the consistency is greater than a predefined value. If the area meets the fire conditions, the electronic device determines a fire position, selects one fire extinguisher from the mobile platform to extinguish the fire position.