Abstract: A rotary body dynamic balance detection and correction device, comprising a detection assembly and a machining correction assembly. The detection assembly is configured to detect the amount of unbalance of a rotary body. The machining correction assembly is configured to machine an outer peripheral face of the rotary body to form a correction hole, so that the value of the amount of unbalance of the machined rotary body does not exceed the value of a preset maximum amount of unbalance. The rotary body dynamic balance detection and correction device can effectively correct the amount of unbalance of the rotary body, reduce the degree of unbalance of the rotary body, and avoid excessive lateral vibration generated when the rotary body rotates at a high speed. A rotary body dynamic balance detection and correction method and a numerical control tool holder are also provided.

Abstract: A method for controlling rotational speed applied to a smart fan includes acquiring environmental temperature from a temperature sensor and radiation intensity of human body from an infrared sensor. A result of analysis is generated by determining whether the acquired environmental temperature is within a predetermined temperature range and the acquired radiation intensity is greater than a predetermined value. A working status of the smart fan can be changed according to the result when the smart fan is in automatic mode.

Abstract: A method for controlling rotational speed applied to a smart fan includes acquiring environmental temperature from a temperature sensor and radiation intensity of human body from an infrared sensor. A result of analysis is generated by determining whether the acquired environmental temperature is within a predetermined temperature range and the acquired radiation intensity is greater than a predetermined value. A working status of the smart fan can be changed according to the result when the smart fan is in automatic mode.

Abstract: A method for controlling an electronic fan is provided. The method detects whether an human body is in the vicinity around the electronic fan by an infrared sensor, controls a first driving unit to swing a fan head of the electronic device to make the fan head face the human body, and controls a second driving unit to rotate blades of the fan head to generate breeze onto the human body.

Abstract: A route searching method used in an electronic device includes detecting decreased available power of the electronic device. When the available power of the electronic device is less than the predetermined value, determining whether a first communication device receives infrared signals transmitted by the charging device. If the infrared signals are not received, the electronic device is driven to repeatedly to continuously turn through a predetermined angle to find a moving orientation of the electronic device, driving the electronic device to move along the orientation, determining whether the first communication device receives the infrared signals transmitted by the charging device when the electronic device is moving, and driving the electronic device to move to the charging device under guidance of the infrared signals, when the first communication device receives the infrared signals transmitted by the charging device.

Abstract: An antenna testing device includes a network analyzer and a coupling antenna connected to network analyzer. The network analyzer generates an incident wave at a preset frequency range. The coupling antenna receives the incident wave from the network analyzer and feeds back a testing reflected wave to the network analyzer based on induction effect between the coupling antenna and a test antenna. The network analyzer obtains testing voltage standing wave ratio (VSWR) of the coupling antenna according to the incident wave and the testing reflected wave and further determines whether radiation performance of the test antenna is normal according to the testing VSWR.

Abstract: An electronic device includes a touch input device to receive touch inputs and a storage device to store a plurality of information of contact persons. The electronic device can respond to a user input to create an index list recording relationships between the information of the contact persons and graphic information. When the user inputs graphic information via the touch input device, the electronic device queries the information of the contact person corresponding to the graphic information input by the user according to the created index list.

Abstract: A transportation card swiping management method includes: obtaining information of a transportation card read by a card reader; obtaining a geographical location of a vehicle located by a GPS unit; determining current station where the vehicle locates according to a station relationship table and the geographical location of the vehicle; and associating the identity of the transportation card and the obtained station and storing the associated identity and the station to the storage device, and calculating a fare according to two stations associated with the identity of the transportation card and deducting the fare from the transportation card when there are two stations associated with the identity of the transportation card stored in the storage device.

Abstract: A SIM card authentication system and a SIM card authentication method adapted for a mobile phone are disclosed. Once the mobile phone is lost, when a SIM card is inserted into the mobile phone, the SIM card authentication system controls the mobile phone to display the user interface, the user must input the right authentication phone number to use the mobile phone. If the user inputs a wrong authentication phone number, the user is illegal and cannot use the mobile phone, the system acquires the phone number of the inserted SIM card to notify a legal user. Therefore, the mobile phone protects and hides stored information from the user, and the legal user may get back the mobile phone according to information from the inserted SIM card.

Abstract: A method for measuring a distance between an electronic device and an object is provided. The method includes: starting to emit infrared light to an object when the electronic device is parallel to a length of the object which is perpendicularly placed and is configured to reflect the received infrared light to a photodiode; stop the timer to acquire a period of time when the photodiode receives the reflected-infrared light from the object; calculating a transmission distance of the infrared light during the period of time; and calculating the distance between the electronic device and the object according to a first distance from the infrared light source to the photodiode and the transmission distance of the infrared light source during the period of time.

Abstract: A volume adjusting system, a volume adjusting method adapted for a mobile phone, and a computer-readable storage medium encoded with a computer program are disclosed. The mobile phone comprises a speaker and stores an optimal hearing volume and a volume range. The method includes steps: detecting a volume of a telephone voice of a caller when the mobile phone establishes a call communication link with the caller, determining whether or not the volume is within the volume range for optimal hearing, adjusting the volume to the optimal hearing volume when the volume is not within the volume range, and controlling the speaker to output the optimal hearing volume. Therefore, when the mobile phone makes a call, even though the volume of the caller is low or high, the system adjusts the volume to the optimal hearing volume, and it is comfortable for the user of the mobile phone.

Abstract: A short message service prompting system and a short message service prompting method adapted for a mobile phone are disclosed. The mobile phone stores a relationship between each service provider and network IDs. The method includes steps: displaying a user interface, wherein the user interface comprises a receiver; receiving a receiver in the user interface; and acquiring phone numbers of a sender and the receiver and determining whether or not both the sender and the receiver are from the same service provider according to the relationship. The method further includes step: generating a short message service prompt and displaying the prompt when both the sender and the receiver are from different service providers or from the same service provider. Therefore, the sender may make a choice whether or not to send the short message according to the displayed prompt.

Abstract: A web page control system and a web page control method for a portable touch control device provide an area dividing module, a page scrolling module, a determination module, and a page display control module. The area dividing module divides a web page into a number of areas including a bottom area and a jump area. The page scrolling module will scroll down the web page in response to a first touch operation from a user and the determination module determines when the web page has been scrolled down to the bottom area. When the web page is scrolled to the end, the page display control module performs a jump function and controls the web page to jump to the jump area unless the user indicates a command to maintain the display of the bottom area.

Abstract: A SIM card authentication system and a SIM card authentication method adapted for a mobile phone are disclosed. Once the mobile phone is lost, when a SIM card is inserted into the mobile phone, the SIM card authentication system controls the mobile phone to display the user interface, the user must input the right authentication phone number to use the mobile phone. If the user inputs a wrong authentication phone number, the user is illegal and cannot use the mobile phone, the system acquires the phone number of the inserted SIM card to notify a legal user. Therefore, the mobile phone protects and hides stored information from the user, and the legal user may get back the mobile phone according to information from the inserted SIM card.

Abstract: The disclosure provides a mobile phone with protection for user information and a user information protection method adapted for the mobile phone. When the mobile phone is lost or stolen, the mobile phone user can send a short message to the mobile phone, using another mobile phone, the original mobile phone recognizes the contents of the short message and will determine that the short message is a command for deleting the user information if a validation code is included in the short message, and accordingly deletes the user information in a SIM card and also stored in the mobile phone.

Abstract: The disclosure provides a call prompting function and a call prompting method adapted for a mobile phone. When the mobile phone is already busy and receives another call, the mobile phone acquires a phone number of the unanswered and blocked mobile phone. When the phone call ends, the mobile phone sends a short message to the unanswered and blocked mobile phone, informing the user of the unanswered and blocked mobile phone that the first mobile phone is now available for calls, avoiding further wasted call attempts.