Charging case capable of lighting up automatically

A thermometer charging case capable of lighting up automatically, comprising:

• a bracket configured to hold a thermometer;
• an upper shell arranged above the bracket and configured to cover the bracket;
• and
• a lower shell arranged below the bracket;
• wherein a circuit board is further arranged between the bracket and the lower shell, and an indicator light and a magnetic induction switch are further arranged on the circuit board;
• a magnet is further arranged on a lower side of the upper shell at a position corresponding to the magnetic induction switch;
• in a case where the upper shell is closed downward, the magnet is adjacent to the magnetic induction switch, the magnetic induction switch is turned off, and the indicator light is out;
• in a case where the upper shell is opened upward, the magnet is away from the magnetic induction switch, the magnetic induction switch is turned on, and the indicator light is on;
• wherein the circuit board is provided with a fault diagnosis module, wherein the fault diagnosis module comprises:
• a vibration sensor, configured to measure a vibration signal of a charging case body, an input end of the vibration sensor being connected to a drive charging case of the charging case body, wherein an original mechanical quantity to be measured of the charging case body is configured as an input quantity of the vibration sensor, and is received by a mechanical receiving port to form another mechanical quantity suitable for conversion, and an electromechanical conversion part converts the other mechanical quantity into electricity;
• an electrical sensor, configured to measure an electrical signal of the charging case body, wherein the electrical sensor comprises an energy storage circuit and a detection circuit, a first end of the energy storage circuit is configured to receive an output voltage, current and power of a generator of the charging case body, the detection circuit is connected to a second end of the energy storage circuit and outputs a detection voltage in response to detecting a control of the generator;
• a feature extraction module, configured to extract features of the electrical signal and the vibration signal, and combine the features to determine fault diagnosis parameters of the charging case body;
• a computing module, configured to compute a signal frequency range and obtain fault diagnosis data of the charging case body, wherein the computing module adopts an improved filtering wavelet algorithm based on an uncertainty matrix theory to realize a particle filtering state estimator of the charging case body and evaluates a fault of the thermometer charging case according to a difference between an estimated value and an actual value of a state variable;
• and
• a communication module configured to transmit the fault diagnosis data of the charging case body to a remote user mobile phone end by way of Zigbee wireless communication;
• wherein an output end of a power train device in the charging case body is connected to the input end of the vibration sensor, an output end of the generator in the charging case body is connected to an input end of the electrical sensor, an output end of the vibration sensor is connected to an input end of the feature extraction module, an output end of the electrical sensor is connected to the input end of the feature extraction module, an output end of the feature extraction module is connected to an input end of the computing module, and an output end of the computing module is connected to an input end of the communication module.