22results about How to "Implement self-test" patented technology

The invention relates to the field of electrical equipment, and discloses a knob device, electrical equipment, a verification method and a computer readable storage medium. The knob device performs self-inspection through a two-dimensional detection mode, so that a user monitors the current damage condition of the knob device, the reliability and accuracy of signals of the knob device are approved, and control disorder caused by the fact that the user does not find that the knob device is continuously used in advance due to damage of the knob device is reduced. The rotary knob device comprises a panel, a rotary knob piece, magnetic induction detection assemblies and an optical detection assembly, the rotary knob piece is magnetically attracted to the panel and can rotate relative to the panel, the magnetic induction detection assemblies are arranged on the two sides of the panel, and the magnetic induction detection assemblies are used for detecting the rotation angle of the rotary knob piece through magnetic induction intensity signals; the optical detection assemblies are arranged on the two sides of the panel and used for detecting the rotation angle of the rotary knob piece through light intensity signals.

The invention provides a power grid traveling wave fault distance measurement system self-checking method based on historical data mining, and relates to the technical field of power grid fault localization, and the method comprises the steps: obtaining historical fault data of a traveling wave fault distance measurement system and historical device related parameters of each transformer substation node; performing supervised learning by using historical fault data and historical device related parameters, and training to obtain a system parameter prediction model; obtaining current device related parameters of the traveling wave fault distance measurement system to be self-detected and the number of main line nodes; generating test data according to the current device related parameters, the main line node number and the historical fault data; inputting each group of test data into the system parameter prediction model to obtain an optimal system parameter; and adjusting system parameters of the power grid traveling wave fault distance measurement system according to the optimal system parameters to realize self-inspection of the power grid traveling wave fault distance measurement system. According to the scheme, manpower and equipment construction cost can be saved, and meanwhile, the accuracy and reliability of the traveling wave fault distance measurement system are improved.

The utility model provides a fault self-checking elevator band-type brake safety device. The fault self-checking elevator band-type brake safety device comprises a base, wherein a detection assembly is arranged at the top of the base; the detection assembly comprises a fixing block arranged on the top of the base, and two brake arms are rotatably arranged on the front face of the fixing block. According to the fault self-inspection elevator band-type brake safety device, when a brake shoe is abraded much to enable the return stroke line spacing of a compression spring to be increased, the right end of a second connecting rod can move more rightwards compared with normal conditions, then a sliding block slides to the position below a power connection groove, and under the action of an ejection spring, the sliding block can move more rightwards to the position below the power connection groove. According to the brake shoe self-checking device, the structure is simple and practical, self-checking of the brake shoe is achieved within the interval time of maintenance of a maintenance worker, and the problem that potential safety hazards exist in a brake device is solved.

The utility model discloses a self-inspection type leakage-proof bathroom pipe. The self-inspection type leakage-proof bathroom pipe structurally comprises a bathroom pipe body and a self-inspection leakage-proof device which is arranged outside the bathroom pipe body and is sleeved with the bathroom pipe body in a clearance mode. The anti-leakage bathroom has the beneficial effects that the self-inspection anti-leakage device is arranged outside the bathroom pipe in a sleeving mode, when the bathroom pipe leaks water, water can be guided to flow to the supporting plate through the drainage strip, so that the water is absorbed by the absorption strip, the expansion effect is achieved, the supporting plate is synchronously pushed upwards while the absorption strip expands, and the anti-leakage effect is achieved. And therefore, the arc-shaped plate is in contact with the contact plate, and self-inspection during water leakage of the bathroom water pipe is realized, so that the bathroom water pipe can be maintained and replaced in time.

The present invention relates to a self-test system for timing signals on a carrier rocket, comprising: a power module, a controller, an improved control mechanism and a timing tester; the improved control mechanism comprises multiple control channels, each of which can be switched between a test state or a non-test state, so that the improved control mechanism corresponds to a test state or a non-test state; the timing tester performs a self-test on the onboard timing when the improved control mechanism corresponds to the test state. The self-test system and method for timing signals on a carrier rocket of the present invention integrates the timing tester inside the carrier rocket, reduces ground test equipment and process cables, simplifies the test process, realizes onboard self-test of timing signals, and improves the level of automation. By improving the control mechanism, integrating the short-circuit protection function of pyrotechnics and the test gating function of the tester, the demand for onboard self-test is met while ensuring safety and without adding other onboard equipment.

The core board defect detection device comprises a detection device, the detection device comprises a verification bottom plate, the front surface of the verification bottom plate is provided with three fastening female seats, the verification bottom plate is provided with a power supply input switch, the front surface of a verification bottom plate body is provided with a feedback lamp group, and the front surface of the detection device is provided with a serial interface. According to the core board defect detection device provided by the utility model, through the buckling female seat designed on the verification base plate, a detector can insert the FPGA core board into the buckling female seat, and meanwhile, through mutual connection of the serial interface and the upper computer, different IOUartTest.sof codes can be automatically burnt in the verification base plate, so that an IO port on the FPGA core board is detected. The designed feedback lamp set can feed back whether IO of the FPGA core board is normal or not, if the lamp set is fully bright, it is represented that the IO is normal, and if the lamp set is not fully bright, it is represented that a fault occurs, and therefore the core board defect detection device achieves the purposes of achieving self-inspection of the core board and avoiding resource loss caused by production mistaken scrapping.

The invention relates to a device and method for cleaning a bypass quick connector and a base of a hemodialysis device, and relates to the technical field of medical instruments. The cleaning device comprises a cleaning tank, a cleaning assembly and a guide assembly. A cleaning solution is stored in the cleaning tank; one end of the cleaning assembly extends into the cleaning tank, and the other end faces the base. The guide assembly is arranged on the cleaning tank and used for collecting the cleaning solution dripping from the base, and a guide channel is formed in the guide assembly. And a bypass quick connector on the hemodialysis device is taken down from the base and extends into the cleaning tank for soaking and cleaning. Part of the cleaning solution in the cleaning tank can be sucked by the cleaning assembly and jetted to the base to flush the base, and the jetted cleaning solution can be collected by the guide assembly and collected into the cleaning tank again, so that recycling of the cleaning solution is achieved. The efficient cleaning effect is achieved, and the problem that the cleaning effect of a bypass quick connector and a base of an existing hemodialysis device is not ideal is solved.

The invention discloses a switch quantity signal transmission control system based on optical fiber, which is applied to the field of optical fiber communication, and is designed to solve the problems of complicated transmission cables, susceptibility to electromagnetic interference, and difficulty in path self-checking in the transmission of a large number of switch quantity signals in industrial process measurement and control systems. The invention adopts optical signals of different wavelengths to independently transmit different switch quantity signals, and optical signals carrying different switch quantity signals are transmitted through optical fibers. Before entering the control system, the optical signals carrying different switch quantity signals are converted into corresponding electrical signals through a plurality of second photoelectric detectors, and the plurality of electrical signals carry different switch quantity signals. After being amplified by a voltage amplifier, each electrical signal is input into a switch valve or a relay, so as to realize the transmission of a large number of switch quantity signals. Before entering the second photoelectric detector, the optical signals carrying different switch quantity signals are simultaneously reflected back to the first photoelectric detector through a reflector, converted into electrical signals and output to a semiconductor diode, so as to realize path self-checking.

According to the intelligent railway question and answer management method and system based on the AI technology, literature data and question and answer data in the railway field are collected, and a question and answer DIKW model is constructed according to the literature data and the question and answer data; receiving a question and answer request initiated by a user, and extracting user information to construct a user DIKW model; calling a question and answer DIKW model to process the user DIKW model, obtaining a target answer, and obtaining a virtual question based on the target answer; inputting the virtual question into a question and answer DIKW model, processing the virtual question by the question and answer DIKW model to obtain a virtual answer, and evaluating the association degree between the virtual answer and the target answer; when the association degree of the virtual answer and the target answer is greater than a preset threshold value, inputting a question and answer request initiated by a user into a question and answer DIKW model, obtaining an actual answer, introducing the DIKW model to improve the data processing calculation capability and the answer recognition precision, and meanwhile, carrying out self-inspection on the precision of the question and answer DIKW model before answering, so that the accuracy of the question and answer is improved. And accurate and efficient question and answer services can be provided for professionals in the railway field.

The invention provides a needle-shaped wave beam millimeter wave waveguide micro-strip mixed feed antenna array with a self-checking function. The problems that the gain, the wave beam, the size and the quality of an existing antenna array cannot meet the requirements at the same time, and self-checking cannot be conducted are mainly solved. The antenna comprises a microstrip radiation array plane (1), a waveguide feed network (2) and a microstrip-waveguide converter (3). The micro-strip radiation array plane comprises a plurality of radiation array elements, a micro-strip feeder network, a dielectric plate and a grounding plate; each radiation array element radiates electromagnetic waves through a slotted single-layer patch and forms a two-dimensional micro-strip sub-array with the micro-strip feeder network; and the rear end of the waveguide feed network is connected with a sum-difference network (4) and a waveguide conversion section (5), the sum-difference network (4) comprises three folding waveguide magic T, a three-port power distribution / synthesis waveguide and a detection waveguide, the waveguide conversion section is connected with the waveguide sum-difference network and the standard waveguide, and the detection waveguide performs self-inspection on rear-end equipment of the antenna array. The antenna has the advantages of high gain, narrow beam, miniaturization and light weight, can perform self-inspection on antenna array rear-end equipment, and can be used for airborne and portable radar platforms.

The invention discloses a protection control method and device of a water pick and the water pick, and relates to the technical field of circuit control. The oral irrigator comprises a motor, a constant pressure detection circuit used for detecting the output water pressure of the oral irrigator and a driving circuit used for driving the motor to work, responds to the mode trigger signal and confirms a target driving mode corresponding to the motor according to the mode trigger signal. Acquiring a detection signal of the output water pressure of the oral irrigator, and confirming the current working state of the oral irrigator according to the matching relationship between the pressure value corresponding to the detection signal and the preset pressure range of the target driving mode of the motor; and under the condition that the pressure value corresponding to the detection signal is not matched with the preset pressure range of the target driving mode of the motor, the driving signal output to the driving circuit is stopped, the enable control module program is reset, and the driving signal is output again, so that the output water pressure of the oral irrigator is within the preset pressure range corresponding to the target driving mode. The invention aims to improve the working safety of the oral irrigator.

The utility model discloses a radio frequency self -checking device for FDD microwave communication system, including coupling circuit, frequency conversion circuit, frequency source circuit and controller, the coupling circuit is equipped with a two -way radio frequency port for with the two -way connection of external duplexer's tuning terminal, the through output port of coupling circuit is connected with the radio frequency input port of frequency conversion circuit, the intermediate frequency output port of frequency conversion circuit is connected with the coupling input port of coupling circuit, the local oscillator port of frequency conversion circuit is connected with the output port of frequency source circuit, it belongs to communication field, through this self -checking device, the signal of transmitting channel in system is frequency conversion to the signal of receiving channel, and sends back receiving channel and carries out the signal processing effect.

The invention discloses a register self-checking method and system under an ARM architecture, electronic equipment and a storage medium, and the method comprises the steps: taking a connection register lr as a to-be-checked register, taking general registers R0-R12 as auxiliary registers, firstly opening up a data stack, temporarily storing original data in each register into the data stack, and storing the original data in each register into the data stack; the method comprises the steps that firstly, a data stack starting address and a program working mode before modification are stored in a data stack, then, an auxiliary register is initialized, finally, assignment is conducted on a register to be detected through the auxiliary register, and whether other data are affected or not when one bit of data in the register is suddenly changed is detected by means of a March algorithm, so that register self-checking is achieved; according to the self-checking method, whether a fault occurs in the register under the ARM architecture or not can be detected, so that an early warning is given to a system with the fault, and the problem that the system is unpredictable due to the fault of the register in the chip is prevented.

The invention relates to the technical field of PCB printing machines, and discloses a beam movement detection method and device, a PCB printing machine and a storage medium which are used for detecting beam movement errors of the PCB printing machine. The method comprises the steps that steel mesh positioning identification points and printing platform positioning identification points are aligned and calibrated, so that the positions of the steel mesh positioning identification points and the printing platform positioning identification points are consistent; the camera beam is controlled to move from the original position to the first direction by a first fixed distance, coordinates of the steel mesh positioning identification point and the printing platform positioning identification point in the camera coordinate system after the camera beam moves by the first fixed distance are obtained, initial reference coordinates are obtained, and the camera beam is controlled to return to the original position; the steel mesh positioning identification point and the printing platform positioning identification point are kept still, the camera beam is controlled to move towards the second direction by a second fixed distance and then move back, coordinates of the current steel mesh positioning identification point and the printing platform positioning identification point in the camera coordinate system are obtained, and a first comparison coordinate is obtained; and comparing the initial reference coordinate with the first comparison coordinate to obtain a movement error of the camera beam in the second direction.

The invention discloses a mine card health state self-checking device, which comprises a data acquisition terminal, a data transmission terminal and a remote service platform, and is characterized in that the data acquisition terminal is arranged on a mine card side, is respectively connected with a CAN bus and the data transmission terminal through data lines, and is used for acquiring data of the CAN bus on the mine card side; generating message data from the collected data and sending the message data to a data transmission terminal; the data transmission terminal is arranged on a mine card side, is wirelessly connected with the remote service platform and is used for sending the message data to the remote service platform; and the remote service platform receives the message data reported by the data transmission terminal, an execution rule is set in the remote service platform, logic and benchmark detection is performed on the message data through the execution rule, and a score of the health degree of the whole vehicle is obtained. The invention discloses a mine truck health state self-checking method. According to the invention, self-inspection of the health state of the mine card can be realized before operation of the mine card, and the health state can be reported to a remote service platform at a far end in time.

The invention discloses an intelligent suspension conveying system for workpiece Dacromet spraying, and relates to the technical field of suspension conveying systems.The intelligent suspension conveying system comprises a guide rail, a suspension chain is laid in the guide rail, a driving structure is installed on the guide rail, and the intelligent suspension conveying system further comprises a positive pressure dustproof mechanism which comprises an air pump installed on the guide rail; a rubber pipe is fixedly laid in the guide rail through a clamping piece, air outlets are evenly formed in the rubber pipe, and only the bottom of the guide rail is provided with an opening. Air is continuously conveyed into the guide rail through the air pump and the rubber pipe, so that a micro-positive pressure environment is formed in the guide rail, and atomized coating drifting upwards is prevented from entering the guide rail; the problem that after a suspension conveying system is used for a long time, paint is accumulated on a suspension chain, and the dead weight is increased is solved, in addition, when the suspension chain hunches up and vibrates in the equipment self-inspection process, the rubber pipe can be used for buffering, collision between the suspension chain and the inner wall of the guide rail is reduced, and the effect of protecting the suspension chain is achieved.

The invention relates to the technical field of electric meter self-inspection, in particular to a high-safety electric meter self-inspection method and system. When the electricity meter is started, whether a power supply for supplying power to the electricity meter is normal or not is judged, if yes, whether power supply of a live-line erasable programmable read-only memory of the electricity meter is normal or not is judged, if yes, whether read-write of the live-line erasable programmable read-only memory is normal or not is judged, and if yes, the electricity meter is started. If yes, first meter calibration data and second meter calibration data pre-stored in the electrified erasable programmable read-only memory are read, whether the first meter calibration data are consistent with the second meter calibration data or not is judged, if yes, the first meter calibration data or the second meter calibration data are written into the random access memory, and if not, judgment is conducted again at the interval of first preset duration, and the first meter calibration data or the second meter calibration data are written into the random access memory; when the number of times of judgment reaches a first preset threshold value, the first meter calibration data and the second meter calibration data are still inconsistent, a meter calibration data error mark is recorded, through the mode, self-inspection during starting of the electric meter is achieved, and it is ensured that the electric meter works continuously and stably.

The invention provides an automatic design method and device based on an embedded chip, and the method comprises the steps: obtaining a circuit signal flow, carrying out the analysis of a system board card function hardware circuit through the circuit signal flow, obtaining a self-test diagnosis circuit, and carrying out the automatic design according to the self-test diagnosis circuit. And generating a control function hardware test program of the embedded chip and a diagnosis program of the embedded chip, wherein the diagnosis program of the embedded chip is used for diagnosing the device to be tested. According to the scheme, the system board card function hardware circuit is analyzed, the self-test diagnosis circuit in the system board card function hardware circuit is extracted, and the control function hardware test program of the embedded chip and the diagnosis program of the embedded chip are automatically generated according to the self-test diagnosis circuit. Automatic development of self-test and self-diagnosis software of a system board card function hardware circuit is realized, so that the development efficiency of the self-test and self-diagnosis software in the system board card function hardware is improved, the design period is shortened, and the development cost is reduced.

The invention provides a self-checking method, a camera, a self-checking system, equipment and a medium, and belongs to the field of flame detection. The method comprises the following steps: acquiring a flame self-inspection image of a hearth under a self-inspection working condition; generating a self-checking signal under the condition of judging that the characteristic value of the flame self-checking image is not equal to the preset value; the self-checking signal is sent to a feature adjusting unit, so that the feature adjusting unit enters a self-checking state, and the feature value of the flame self-checking image is adjusted until the feature value is equal to a preset value; after the characteristic value of the flame self-inspection image is adjusted to a preset value, an adjustment completion signal is generated; and sending the adjustment completion signal to a feature adjustment unit to enable the feature adjustment unit to enter a self-inspection completion state. According to the self-checking method, the characteristic value of the flame self-checking image is adjusted through the characteristic adjusting unit, the self-checking operation is automatically completed after the preset value is reached, the camera can achieve self-checking under the condition that a boiler hearth is not shut down, and good practicability is achieved.

The invention relates to the technical field of data processing, and discloses a data preprocessing method and a preprocessing system. The preprocessing system comprises a data acquisition management module and a data calibration management module. By using a data recognition algorithm to perform abnormal value analysis and comparison on calibrated images, sounds and numerical data with stored image abnormality data, sound abnormality data and numerical abnormality data, intelligent recognition and screening of abnormal images, sounds and numerical data in the data acquisition stage are realized, thereby improving the scientificity and reliability of data preprocessing. Secondary data acquisition is performed on the recognized image abnormality data, sound abnormality data and numerical abnormality data according to data numbers using an acquisition device, and secondary abnormal data analysis and feedback are performed on the acquired images, sounds and numerical data, thereby realizing abnormal data self-checking and abnormal data feedback of data acquisition, thereby improving the intelligence and accuracy of data preprocessing.

The utility model discloses an adjustable and convenient steel beam welding and self-checking platform which comprises a lower layer steel frame, a lower layer steel frame, a lower layer steel frame, a lower layer steel frame and an upper layer steel frame, wherein one end of the lower layer steel frame is connected with a lower flange of a steel beam through a sliding fastening device; the adjustable supporting steel truss is obliquely arranged above the lower-layer steel frame, and one end of the adjustable supporting steel truss is connected with the upper flange of the steel beam through a fastening mechanism; the hinge device is connected between the lower-layer steel frame and the other end of the adjustable supporting steel truss; the sliding type fastening device comprises an upper steel connecting rod fixedly connected with the lower-layer steel frame and a lower steel connecting rod connected with the lower-layer steel frame in an up-down sliding mode, and steel rolling wheels rolling on the upper surface and the lower surface of the lower flange of the steel beam respectively are installed on the upper steel connecting rod and the lower steel connecting rod. Welding and self-checking work can be conducted on steel beams at different section positions, welding efficiency is improved, operation is easy and convenient, and safety and reliability are achieved; the technical problems that an existing welding hanging basket and an existing welding platform are complex in structure, large in size, heavy and the like, and the construction progress is affected are solved.