33results about How to "Guaranteed test reliability" patented technology

The invention provides a detection device for fan-head mechanisms. The detection device comprises a positioning unit and a push-and-pull component; the positioning unit is used for fixing a support of each fan-head mechanism, the push-and-pull component having a reciprocating state is disposed on one side of the positioning unit, and an operating end of the push-and-pull component is connected with a fan head of the fan-head mechanism. By the aid of the positioning unit, the support of the fan-head mechanism is fixed during testing, the fan-head mechanism is prevented from sliding accidentally during testing, and test reliability is guaranteed. Since the operating end of the push-and-pull component is connected with the fan head of the fan-head mechanism, the fan head is driven to move along with reciprocation of the push-and-pull mechanism and do pitching motion continuously, and accordingly, labor is saved, labor intensity of work staff is reduced, test cost is lowered, and uniformity and accuracy in testing are guaranteed. The detection device has the advantages of simple structure and low manufacturing cost.

The invention discloses a method for testing the reliability of the GPF of a passenger car, comprising the following steps: installing a temperature sensor on the GPF of the vehicle, monitoring the temperature of the GPF and measuring the weight of particles captured by the GPF, and configuring a data acquisition system to monitor the test process of the vehicle The state in the vehicle is monitored throughout the process; it is compiled into a complete assessment working condition and mileage distribution; the assessment working condition and mileage distribution are specifically decomposed into the vehicle driving and operation plan according to the test track road, and a voice prompt file is formed. During the test, the driver Carry out vehicle driving and related operations according to the voice prompt file to ensure that the vehicle runs according to the specified working conditions; check the vehicle GPF status and vehicle emission results after each working condition in the test process, and judge the GPF reliability. The invention accurately restores the influence of vehicle running environment factors on the GPF reliability, makes the test result more accurate, and can truly and comprehensively verify the GPF reliability.

The invention discloses a mainboard audio loop test device, which is characterized in that it includes an integrated test system, a sound-absorbing box, a loudspeaker, a voice-activated switch, a photosensitive resistor and a buzzer, and the voice-activated switch includes an electrically connected wheat head and an LED display lamp, and a photosensitive The resistor and the buzzer are respectively electrically connected to the integrated test system. The integrated test system is used to supply power to the buzzer and to receive the feedback signal of the photoresistor. The speaker and the microphone head are set in the muffler box, and the photoresistor corresponds to the LED display light. set up. Directly simulate the work of the audio circuit, and connect the audio device to the signal output end of the audio circuit of the motherboard. When the audio circuit is working, it can intuitively detect whether the audio device is sounding to determine whether the audio circuit is normal or not. It has the reliability of the traditional human ear test. , At the same time, it can realize high-efficiency automated testing.

The embodiment of the present invention discloses a radio frequency channel calibration method. The first calibration sequence is respectively transmitted through each radio frequency channel in the first communication connection, and the second calibration sequence corresponding to each radio frequency channel received after each transmission is obtained; according to the first calibration sequence and the second calibration sequence sequence, using a preset calculation rule to determine the difference value of the signal characteristic parameter of each radio frequency channel; according to the difference value of the signal characteristic parameter, each radio frequency channel is compensated. The embodiment of the present invention also discloses a radio frequency channel correction device, a storage medium and an information processing device.

The invention provides intelligent power failure testing method and system. The intelligent power failure testing method and system drive a weak-current control module and a strong-current control module to be in order power failure and power on via a control end according to parameter setting and controllable output of data of equipment to be tested. Therefore, full-automatic intelligent power failure testing is realized, and the intelligent power failure testing method and system have the advantages of high efficiency, labor cost saving and higher safety. Besides, testing demands of higher requirements for safety coefficient of strong current types can be met. Products can meet various testing demands of equipment, and testing cost is reduced. The intelligent power failure testing method and system can be more adaptive to realize remote control and more convenient to manage and testing reliability is guaranteed by real-time monitoring.

The invention provides a detection device for fan-head mechanisms. The detection device comprises a positioning unit and a push-and-pull component; the positioning unit is used for fixing a support of each fan-head mechanism, the push-and-pull component having a reciprocating state is disposed on one side of the positioning unit, and an operating end of the push-and-pull component is connected with a fan head of the fan-head mechanism. By the aid of the positioning unit, the support of the fan-head mechanism is fixed during testing, the fan-head mechanism is prevented from sliding accidentally during testing, and test reliability is guaranteed. Since the operating end of the push-and-pull component is connected with the fan head of the fan-head mechanism, the fan head is driven to move along with reciprocation of the push-and-pull mechanism and do pitching motion continuously, and accordingly, labor is saved, labor intensity of work staff is reduced, test cost is lowered, and uniformity and accuracy in testing are guaranteed. The detection device has the advantages of simple structure and low manufacturing cost.

The invention discloses a child and mother aircraft communication method and system based on a 1553B bus, and relates to the technical field of aircraft control systems. The method disclosed by the invention comprises the steps of: establishing a mother aircraft bus sub-system and a child aircraft bus sub-system according to a 1553B bus protocol; initializing a mother aircraft computer to a BC node of the mother aircraft bus sub-system, and initializing other standalones of a mother aircraft to RT nodes or BM nodes of the mother aircraft bus sub-system; initializing a child aircraft computer to a BC node of the child aircraft bus sub-system, and simultaneously, taking the child aircraft computer as the RT node of the mother aircraft bus sub-system; and initializing other standalones of a child aircraft to RT nodes or BM nodes of the child aircraft bus sub-system. Only a set of mother aircraft bus sub-system is arranged; one or more sets of child aircraft bus sub-systems are arranged, and hooked onto the mother aircraft bus sub-system at the same time; therefore, a star topological network is formed; and thus, the ground test reliability is ensured.

The invention provides a sensing device for testing the weight of contents in a washing bucket of a washing machine, which realizes stable and accurate detection. The sensing device comprises hanging hooks A connected to upper portion corners of the inner wall of an outer tank body of a washing machine and hanging hooks B connected to the lower portion of the outer wall of a washing bucket of the washing machine; the hanging hooks B and the hanging hooks A correspond to each other longitudinally; a lifting rod is hung on and connected to each hanging hook A; each hanging hook B is connected with a shock absorber via the hanging and connection of an outer shell of the shock absorber; the lower end of each lifting rod extends into the outer shell of the corresponding shock absorber; a support body is arranged in each outer shell; the lower end of each lifting rod is connected with the corresponding support body; a shock absorption spring is arranged between each support body and the upper top of the corresponding outer shell; the bottom of each outer shell is provided with a spring A and the upper end of the spring A is pressed against a magnetic iron core; a spring B is pressed against each magnetic iron core and the corresponding support body therebetween; the periphery of the lower portion of each outer shell, corresponding to the matching magnetic iron core, is fixedly sleeved with an inductance coil; the elastic coefficient of the springs A and the elastic coefficient of the springs B are not equal. The sensing device is used for detection of the weight of contents in a washing bucket of a washing machine.