55results about How to "Judgment failure" patented technology

The invention provides a lamp signal control system for a non-volatile memory express solid state disk. The lamp signal control system comprises a non-volatile memory express solid state disk, a slave processor and a controller. The non-volatile memory express solid state disk is provided with a control module for transmitting an operation signal and a solid state disk position signal. The slave processor is electrically connected with the control module and is used for receiving the operation signal and the solid state disk signal, driving an operation indication lamp to light according to the operation signal and driving a fault indication lamp to light when detecting the fault of the non-volatile memory express solid state disk. The controller is electrically connected with the slave processor and is used for allowing a user to control the controller to drive a solid state disk position indication lamp to light.

The method for diagnosing a cooling system based on a TMM module designed by the present invention includes a thermal management module for controlling the cooling system, a single coolant temperature sensor for monitoring the temperature of the coolant, and a warm air heat exchanger for heat exchange; the present invention It is a simplified and more accurate diagnosis scheme developed based on the requirements of the national standard and based on the cooling system using the TMM module (thermal management module). Compared with the diagnosis scheme of the single coolant temperature sensor, the results of the present invention are more accurate, and the specific cause of the cooling system failure can be judged more accurately; The temperature difference of the coolant temperature sensor is used to monitor the thermostat. From this point of view, this diagnostic scheme provides a more simplified and accurate cooling system diagnostic scheme for engines using thermal management modules.

The invention discloses a control system of a building talkback indoor device, which comprises a system bus interface, a power-switching circuit, a power supply circuit of the indoor device, a video input impedance matching circuit, a video output drive circuit, an audio duplex communication circuit, an audio power amplification circuit, two multi-way option switches, a data communication transceiver, a microprocessor, a interface status indicating lamp, a electric level state detection circuit and at least two indoor device interfaces; the power supply circuit of the indoor device provides the indoor device with the power supply with various voltages; the video input impedance matching circuit and the video output drive circuit provide the indoor device with the video signal access; the audio duplex communication circuit, the audio power amplification circuit and the multi-way option switches provide the indoor device with the two-way audio signal access; and the microprocessor is connected with the data communications transceiver and the electric level state detection circuit, thereby achieving the state detection and control of the indoor device. The control system is shared bya plurality of indoor devices, thereby reducing the cost of the device, and has functions of failure isolation and video transmission compensation.

The invention provides a method for judging the optical catastrophe type of a semiconductor laser chip, which solves the problems of high judgment cost, long judgment time and low production efficiency of existing semiconductor laser chips COBD and COMD. The method includes: Step 1, setting the loading current; Step 2, loading the loading current on the semiconductor laser chip; Step 3, collecting the current-power curve and current-voltage curve of the semiconductor laser chip; Step 4, if the current-power curve If the current-voltage curve suddenly drops and the current-voltage curve suddenly rises, it is judged that the optical catastrophe of the chip is COMD; if the current-power curve suddenly drops and the current-voltage curve suddenly drops, it is judged that the optical catastrophe of the chip is COBD. The method of the present invention does not require professional equipment, and only needs to collect the current, power value and voltage value in the test process to judge COBD and COMD. The detection equipment is simple and the cost is low, and only ordinary technicians can realize the judgment of failure .

The invention discloses a weatherproof constant pressure linear array sound device. The weather proof constant pressure linear array sound device adopts a fixed structure member and a series connection fastener which fix and connect a plurality of adjacent water tanks in series; numbers of waterproof sound box assemblies can be customized; the number of the waterproof boxes can be fast increased and reduced in order to applicable to various application scenes; the waterproof sound box assembly comprises waterproof cloth, a waterproof ring, a waterproof loudspeaker, a waterproof plug-in connection seat and a waterproof connection line and thus a professional waterproof capability is guaranteed; and, particularly, the plurality of waterproof sound boxes are in circuit connection through the waterproof plug-in connection seat and the waterproof connection wire. The weatherproof constant pressure linear array sound device cannot only work all day, but also can improve sound intensity of a sound post and sound directive; a passive sound intensity display assembly can emit visible light with different intensity and prompts the user about the current sound intensity of the sound post; when voltage exceeds a threshold, visible light in different color is displayed as an alarm; the passive sound intensity display assembly can quickly determine faults of a voltage drop transformer, the passive sound intensity display assembly and the waterproof sound box.

The invention discloses an easy-maintaining pipeline electric wire. The structure of the easy-maintaining pipeline electric wire includes a power supply plug, a horizontal pipeline wire, a power socket, a vertical pipeline wire, and a grid interface; the power supply plug is fixed outside the wall through cement; and the horizontal pipeline wire is electrically connected to the right side of the power supply plug. In the case of a sudden increase of the current in the circuit and a voltage change, the shape of a magnet absorbed belt can be changed to compress a corresponding needle-nosed belt,so that the needle-nosed belt causes a stimulating slide on a rolled sheet and makes the rolled sheet carry out an action effect of the corresponding circuit, so that people can accurately determinewhich wire is faulty after removing the wire; through the collision occurrence effect of collision particles in a rotating cone and the effect of color-changing of a certain color-changing belt, the fault of a certain line can be judged visually and acoustically; and the double judgment is more accurate; therefore, the waste of maintenance time caused by misjudgment is prevented.

The invention discloses a converter circuit fault detection method, a readable storage medium and a converter. The method comprises the steps that: the step 1, a converter controller acquires a current direction variable A representing a converter output point, a current actual voltage state variable B representing the converter output point and a current semiconductor switch command C of a converter switching device; the step 2, one of the current direction variable A, the voltage state variable B and the switch command C is selected in the current direction as an object to be compared, the predicted value of the object to be compared is predicted through the other two; and the step 3, the converter controller compares the differences between the predicted value and the actual value of the object to be compared to determine the state of the converter, determines and outputs the fault of the converter when the differences are different, and determines that the converter is normal when the differences are the same. According to the method, only the variable representing the current direction and the variable representing the voltage state are required to be obtained, and the fault determination is performed by combining the switching state of the switching device, so that the calculated amount is less, the error is small, and the determination is rapid, simple and convenient.