51results about How to "Judgment reliability" patented technology

The invention discloses a cradle head fault detecting method and a cradle head fault detecting device. The method comprises the following steps: A, sending a cradle head control instruction to a cradle head to be detected and acquiring continuously collected series images as images to be analyzed; B, extracting and analyzing the characteristics of the images to be analyzed to obtain the change condition of a background image and accordingly determining the change condition of the cradle head to be detected; and C, determining if the movement condition of the background image is consistent with the cradle head control instruction, and accordingly determining if the cradle head operates normally. The fault detection method and the fault detection device have higher adaptability to light change, image foreground target movement interference and random noise interference, has an expanded cradle head fault detection function for detecting the moving or static conditions of the cradle head and the specific movement direction and distance of the moving cradle head and can further estimate the movement speed of the cradle head and more accurately determine the reliability of the cradle head.

The invention discloses four surface acoustic wave label temperature measuring systems and corresponding temperature measuring methods. Based on the combination of tie division, time division-frequency division, time division-code division, and time division-code division-frequency division, the multi-node anti-collision temperature measurement is realized. The temperature measuring system is composed of a surface acoustic wave label node, a reader and a server. During the time-division method, different positions of echo pulses are divided into a plurality of surface acoustic wave label nodesaccording to different positions of the reflection gratings of labels. During the time division-frequency division method, time division labels are classified according to different resonance frequencies. During the time division-code division method, time division labels are grouped according to different phase codes of a phase modulation interdigital transducer. During the time division-code division-frequency division-combined method, time division labels are classified firstly and then are grouped. For the temperature measuring systems of different temperature measuring methods, the reader sends out different excitation signals. According to the invention, the ISM and the bandwidth allowed in the national standard are satisfied, and the number of nodes is increased. The verification function is achieved, and the anti-jamming capability is high. The real-time performance is relatively good.

The invention provides a self-checking circuit for a photosensitive element. The self-checking circuit comprises a photosensitive sensor, a light source and a micro processor, wherein the light source is arranged within a photosensitive range of the photosensitive sensor and used for providing a detecting light source for the photosensitive sensor in a self-checking process of the photosensitive sensor; the micro processor is connected to the light source and used for controlling the light source to switch on for realizing the self-checking process of the photosensitive element. The invention further provides a self-checking method and a self-checking system for a photosensitive element as well as an air conditioner. According to the technical scheme adopted by the invention, the self-checking process of the photosensitive element is realized so as to conveniently judge whether the photosensitive element effectively works or not; besides, the reliability of the photosensitive element is timely judged, so that the micro processor can be used for accurately obtaining a test signal of the photosensitive element and accurately controlling a functional module.

A method and device for detecting DCI are provided. The method includes: obtaining intermediate data in DCI blind detection, the intermediate data including descrambled data, decoded data and detected RNTI values; determining data to be processed from the decoded data based on a matching result of the detected RNTI values and configured RNTI values; performing encoding, rate matching and modulation on the data to be processed to obtain modulated data; calculating confidence levels of the configured RNTI values based on the modulated data and the descrambled data; and when a maximum confidence level of the configured RNTI value is greater than a predetermined threshold of confidence level, determining that the data to be processed contains detected DCI. The probability of DCI misdetection may be reduced, and further the accuracy of uplink and downlink data on a mobile terminal and system stability may be ensured.

The invention discloses an updating method and system for optical performance degradation trend prediction, and relates to the field of optical communication, and the method comprises the steps: constructing a neural network for predicting an optical performance degradation trend based on an original key performance index; and extracting a new key performance index from the added optical performance indexes, obtaining a correlation coefficient by calculating a covariance between the new key performance index and the original key performance index, and selecting the new key performance index ofwhich the correlation coefficient is less than or equal to an influence degree threshold as all or part of samples to update the neural network. According to the method, when the optical performanceindexes are increased, new key performance indexes are obtained from the optical performance indexes and serve as samples to update the neural network for predicting optical performance degradation, the optical performance degradation trend is continuously perfected, and the prediction accuracy is improved.

The invention discloses a rapid and accurate monitoring system for the deformation of surrounding rock of an underground roadway and a monitoring method of the system. The system comprises a rubber belt, code reference points, non-code reference points, a fixed scale, cameras and a computer; each non-code reference point is composed of a non-code center point, and each code reference point consists of a code center point and annular codes. The monitoring method of the system comprises the steps that S1, the rubber belt is fixed on the section of the roadway, wherein the shape of the rubber belt is identical to that of the section of the roadway; S2, the code reference points and the non-code reference points are inserted in the rubber belt at intervals, and the fixed scale is hung betweentwo code points; S3, the cameras are connected with the computer, and camera lens are aligned with the rubber belt; S4, an automatic photographing mode is adopted for recording the movement process ofthe code reference points and the non-code reference points; S5, collection is completed, and photo information is transmitted to the computer; S6, system measurement software calculates the three-dimensional coordinate changes of the code reference points and the non-code reference points; S7, the deformation of the surrounding rock of the entire roadway is analyzed.

The invention discloses an electromagnetic interference detecting device and a method for pinhole detecting equipment. A detection signal is input into an interference detecting device and enters a signal amplifier (2) through an optoelectronic isolation circuit (1), an output of the signal amplifier is connected with a signal encoding comparing circuit (3), an output of the signal encoding comparing circuit is connected with a signal latch (4), the signal in the signal latch is collected by a signal collector (5) and transmitted to a computer (6), the signal is processed by the computer and output, and the output signal is connected with an alarm (7). According to the electromagnetic interference detecting device and the method for the pinhole detecting equipment, the detection signal is collected, processed, converted into a grading digital signal, sent to the computer and processed so that an interference impulse sequence chart can be displayed, an electromagnetic interference frequency can be analyzed and calculated, and the electromagnetic interference which is over large is alarmed. The electromagnetic interference detecting device and the method for the pinhole detecting equipment can conveniently achieve detection of an environmental electromagnetic interference signal and judgment of interference degree so that a working state of the detecting equipment and the reliability of detecting data can be judged.

The invention provides charger mainboard test equipment for simulating Qi standard wireless charging by using a real coil, and the equipment is low in cost, high in integration level, complete in function and is suitable for a product manufacturing whole-process test. The equipment comprises a power supply module (1), a transmitting and receiving coil (2), an electronic simulation load (3), an FPGA (4), a plurality of function test modules, a high-speed ADC acquisition module (5) and a peripheral upper computer (6). The power supply module powers up the whole test equipment and a charger mainboard (7) to be tested. One side of the transmitting and receiving coil is connected with the charger mainboard to be tested, the other side is connected with the electronic simulation load, the high-speed ADC acquisition module acquires various signals of the charger mainboard to be tested and uploads the signals to the FPGA, and the function test modules perform function test on the simulated output process of the charger mainboard to be tested, output a test result to the FPGA for analysis, and upload the test result to the upper computer for background processing and storage. The equipmentis applied to the field of wireless charger testing.

The invention discloses a photovoltaic module reliability detection method, which comprises the following steps: S1, removing a module diode, and arranging a thermocouple on a back plate surface; s2,externally connecting a direct-current power supply to the module, introducing reverse current which is 1.5-2.5 times of short-circuit current of the module in a constant-current mode so as to generate temperature required by testing, keeping the temperature for more than 10min, and recording a current value and a voltage value of the power supply; s3, switching the circuit to a constant-voltage mode, keeping the voltage value recorded in the step S2 for 10 minutes, and keeping the voltage value stable; s4, loading a front 2400PA dynamic mechanical load to the module, maintaining the front 2400PA dynamic mechanical load for not less than 24 hours, and continuously recording a power supply current value during the period; and S5, if the current value fluctuation in the period is less than or equal to 3%, determining that a high-temperature mechanical load test of the module is qualified, otherwise, determining that the module is unqualified. According to the invention, a mode of externally applying a high-temperature mechanical load is adopted, so that the new process module is subjected to mechanical deformation at high temperature to verify the long-term reliability of outdoor useof the module, and is very worthy of popularization.

The invention is suitable for the technical field of flash memories, and particularly relates to a flash memory data analysis method and device, terminal equipment and a storage medium. According to the method, data writing is executed for each flash memory block in the flash memory, the writing temperature during data writing is recorded, and in a test temperature range, the data in each flash memory block is read, and the reading temperature during data reading is recorded; and the identification information of the flash memory block with the read error and the bit number, the read temperature and the write-in temperature of the read error corresponding to the flash memory block are obtained, the information of the flash memory block with the read error is used for generating an analysis table, and the read-write performance test of the flash memory is realized. According to the bit number of the read error of the flash memory block under the temperature condition, the test result of each flash memory block can be more accurately obtained in combination with the temperature condition so as to judge the reliability of the flash memory.

The invention discloses a CD driver test method, which is applied to a Linux system and comprises the following steps: receiving a test instruction; judging whether the CD driver to be tested supportsa burning function or not according to the test instruction; if the recording function is supported, sending prompt information for inserting a blank optical disk; after the blank optical disk is inserted, downloading a recorded mirror image file; burning the blank optical disk by using the burning mirror image file, and recording burning information in the burning process; the CD-ROM testing method is simple to operate, realizes automatic testing of the CD-ROM, and improves the testing efficiency. The invention further discloses a CD driver testing device, CD driver testing equipment and a computer readable storage medium, which all have the above beneficial effects.

The invention relates to a maintenance method for an electrical connector of a tramcar, and the method comprises the steps: S1, decomposing the electrical connector; S2, checking internal threads of athreaded hole of the fastener; S3, checking a connector shell; S4, checking a connector jack and a contact pin; S5, checking the insulating plate; S6, checking a sealing piece; S7, detecting a mechanical component; S8, carrying out an insulation resistance test on the electrical connector; S9, performing a contact resistance test on the electrical connector; S10, assembling each part of the electrical connector, sleeving a cable sheath on each part, and leaving an overhaul record. The tramcar electrical connector maintenance method is systematized, and the tramcar electrical connector maintenance process is standardized; the maintenance quality problem of the tramcar electrical connector is solved, and potential safety hazards are reduced; a detailed and reliable contact resistance testing method is provided, and the reliability of the electrical connector is effectively judged; and the maintenance cost of the tramcar operation unit on the electrical connector is reduced.

The invention discloses a full-automatic detection method for a pneumatic valve based on a gas turbine purging system. The method comprises the steps of S1, controlling the building of a logic block through a MARK Vie control system, wherein the building includes establishment of a purging system pneumatic valve needing to be detected, and visual operation is carried out on the purging system pneumatic valve; S2, combining and selecting the purging system pneumatic valve needing to be detected; S3, setting test conditions and test requirements, wherein the conditions comprise preconditions and locking conditions; and S4, judging whether the valve test is qualified or not. According to the invention, the check work of the purging system pneumatic valve is automatically completed, the workload and time of maintainers are reduced, the working efficiency is greatly improved, the check work is automatically completed through the logic module, the action time of each valve is accurately recorded, and the reliability of equipment is accurately judged.

The invention relates to a performance testing device for pressure sensor production, and belongs to the technical field of pressure sensor performance test. The performance testing device comprises a first cavity, a plugging piece capable of moving up and down is arranged in the first cavity and divides the first cavity into an upper cavity and a lower cavity, the upper cavity is provided with a plugging piece moving measuring device, and the lower cavity is used for containing a to-be-detected sensor; an air inlet is formed in the lower cavity; the plugging piece movement measuring device comprises liquid located above the plugging piece, the liquid floats a floating block, the floating block is connected with a gravity column through a steel wire, and the gravity column is located in the second cavity. The air pressure in the lower cavity can be slowly changed, and the precision of the to-be-detected sensor is determined through the readings of the to-be-detected sensor placed in the lower cavity and the standard air pressure detection device; when the air pressure in the lower cavity reaches a certain degree, the air pressure in the lower cavity is not changed, the plugging piece moves, the plugging piece movement measuring device measures the displacement of the plugging piece, and the reliability and authenticity of the to-be-detected sensor are judged through a plugging piece position real-time movement curve.

A slurry stability evaluation device comprises a bracket, two pulleys are fixed on two sides of the bracket; a lead is connected between the two pulleys; two ends of the lead are respectively connected with a shaft rod and a weight disc; a test rod is arranged on the shaft rod, and salient points are distributed on the surface of the test rod; a measuring cup is arranged below the shaft rod; the mass of the weight disc is equal to the sum of the masses of the shaft rod and the test rod; the gravity resultant force of the shaft rod and the testing rod is larger than the buoyancy force borne by the testing rod when the testing rod is completely immersed in the slurry. The device is simple in structure, easy to operate, extremely convenient to assemble, disassemble, replace and clean and capable of being repeatedly used; wherein the test rod structure adsorbs agglomerates or gels in the suspended slurry, the mass of the agglomerates is visually displayed by accumulating the total mass of the weights, a stability curve of the slurry can be obtained through multiple tests, then the stability of a slurry system is judged, and the test efficiency, reliability and accuracy are evaluated to meet the requirements.

The invention provides a detection method and device for battery cell performance. The detection method for the battery cell performance comprises the following steps of: acquiring the performance parameters of each battery cell as initial performance parameters; sequentially installing the battery cells according to the preset different installation directions, sequentially vibrating the batterycells according to the preset different vibration directions in each installation direction, and acquiring the performance parameters of each battery cell as post-vibration performance parameters after each vibration; and judging the reliability of the battery cell performance according to the post-vibration performance parameters and the initial performance parameters. The detection method and device for the battery cell performance sequentially installs the battery cells according to the preset different installation directions, sequentially vibrates the battery cells according to the presetdifferent directions in each installation direction, acquires the post-vibration performance parameters, and judges the reliability of the battery cell performance after the vibration in different directions under the different installation directions.

The invention discloses a software test management system based on big data interconnection. The system is characterized by comprising an account test management module of home-school interconnection software; the account number test management module of the home-school interconnection software comprises an account number information extraction module used for extracting account number pairs which communicate with each other in a first unit time of each account number; and the account number pairs comprise two account numbers which are the account numbers of the two parties which communicate with each other. According to the invention, testing management is carried out on interconnected software, and particularly account testing management is carried out on home-school interconnected software; according to the invention, the low-activity accounts can be effectively distinguished, and the low-activity accounts can be stored in a unified manner, so that the low-activity accounts can be cleaned conveniently; and the account management function of the home-school interconnection software is tested, and thus judging the reliability and whether the home-school interconnection software needs to be corrected or not.