USB slip ring in cellphone testing equipment
Author：coco|Source： | Release time：2019-05-18With the acceleration of the process of social informatization, high-tech products have become a hot spot of consumption. Smart phones, as one of their representatives, have been popularized worldwide. Mobile phone consumption has already evolved from being aristocratic to being civilian.As a kind of convenient and quick communication tool, mobile phone has already entered every field of modern life.
With the sharp increase in the demand for smart phones and the increase investment strategic shift of development and production byforeign companies, led byApple andSamsung and major domestic manufacturers.The major manufacturers also got good feedback in the market.However, the user experience and quality of mobile phone are what consumers pay more attention to, especially the quality of mobile phone is the key factor of consumers' choice.In order to ensure the quality of mobile phones , USB slip ring replace traditional method to resolve the testing difficulty for muss production.
The functions of the mobile phone are supported by the main board of the mobile phone.Mobile phone motherboards must go through a seriestesting beforeit be put on the market.USB slip ring is a connector to transmit signal and power during it 360 degree limitless rotating.Then USB slip ring is good tool for Motherboad test. BecauseMotherboard test equipment generally to test the mobile phone motherboard signal export device, signal short circuit, open circuit detection device and computer device.Mobile phones on the motherboard signal export device has to docking board under test position detection contact, short circuit, open circuit described signal detection device is used to compare the signal test value is in accordance with the normal signal microcontroller, described the electrical connection of the contact stated in micro controller, described the computer device is used to detect operation steps and display the software system of the test result.
In view of the above situation, major mobile phone manufacturers and manufacturers have started to develop automatic mobile phone detection equipment to improve the efficiency of mobile phone detection and ensure the quality of mobile phones when they leave the factory.The automatic mobile phone detection device adopts the form of rotary table in structure, and USBslip ring is installed in the rotating center of the device as the core component. There are several USB channels on theslip ring, and with USB hub, the USB test port can be extended to more than ten or even dozens.Each test port corresponds to a mobile phone to be tested.During the test, the turntable rotates regularly, and the USB port of the computer is connected to the mobile phone to be tested on the turntable through the sliding-ring USB channel to detect the phone's motherboard and other hardware. The sliding-ring perfectly solves the winding problem when the turntable rotates, subverting the traditional test method of one by one, and greatly improving the test efficiency.
At present,CENO’smulti-channel USB slip ring has been successfully applied in the automatic mobile phone detection equipment ofHuawei,Foxconn and other large companies, and can be extended to the LED display screen and other electronic equipment detection equipment, with the maturity and popularity of automatic detection equipment, this product will be more widely used.