34results about How to "Check correctness" patented technology

The present invention provides an indoor mobile robot vision SLAM method based on the Kinect. The method comprises the following steps: S1: acquiring color RGB data and Depth data of an indoor environment by using a Kinect camera; S2: performing feature detection of RGB data and implementing rapid and effective matching between adjacent images; S3: combining inner parameters of a Kinect camera after calibration and pixel point depth values to convert a 2D image point into a 3D space point, and establishing a corresponding relationship of 3D point cloud; S4: using the RANSAC algorithm to eliminate external points of the point cloud to complete point cloud rough matching; S5: employing an ICP algorithm with a double limit of an Euclidean distance and an angle threshold to complete fine matching of the point cloud; and S6: introducing a weight in a key frame selection, and employing the g2o algorithm to optimize a robot posture, and finally obtaining a robot moving trajectory, and generating a 3D point cloud map. The indoor mobile robot vision SLAM method based on the Kinect can solve the problems that a point cloud registration portion in a vision SLAM system is liable to local optimum and is large the matching error, and therefore the registration accuracy of the point cloud is improved.

The invention relates to a multi-core cable wire testing device, aiming to solve the problems of low efficiency, easy errors, hardly discovery of poor contact caused by faulty welding between a wire and a terminal, and the like in the prior art. The multi-core cable wire testing device comprises a testing instrument and a vibrator, wherein the testing instrument comprises an operation panel and a testing circuit which is formed by sequentially connecting a multivibrator, a frequency division loop, a sequential output loop and a display loop in series, a power supply supplies power to the multivibrator and the loops, and two testing sockets are respectively connected with the sequential output loop and the display loop. The invention detects a multi-core cable wire under the vibration condition, can not only detect the wiring correction, but also detect whether hidden danger, such as poor contact due to faulty welding, and the like exists.

The invention discloses a voice section segmentation detection method and system. The method includes the steps of obtaining segmentation results obtained by conducting voice section segmentation on reading voices; conducting voice recognition on the reading voices to obtain recognition results; respectively calculating the recognition rate of the segmentation results and the recognition rate of the recognition results according to reading texts corresponding to the reading voices; if the recognition rate of the segmentation results is higher than the recognition rate of the recognition results, determining that the segmentation results are normal; if the recognition rate of the segmentation results is not higher than the recognition rate of the recognition results, determining that the segmentation results are abnormal. The invention further discloses a spoken language detecting and evaluating method and system. By means of the voice section segmentation detection method and system and the spoken language detecting and evaluating method and system, whether the voice section segmentation results are abnormal or not can be effectively detected, and the accuracy of evaluating and detecting results is further guaranteed.

The invention discloses a loudspeaker reliability test device comprising a machine box which is internally provided with a computer system. The computer system is provided with a LabView processing module and an audio card. The loudspeaker reliability test device also comprises a test card which is arranged in the machine box and connected with the computer system. The test card is provided with multipath of test channels which are formed by audio power amplifier chips, sampling resistors and loudspeaker connecting terminals in a series-connection way. The input end of each audio power amplifier chip is connected with the output end of the audio card. The test card is also provided with a voltage and current acquisition module and a single-chip microcomputer. Two ends of each sampling resistor and each loudspeaker connecting terminal are connected with the input end of the voltage and current acquisition module. The output end of the voltage and current acquisition module is connected with an I / O of the single-chip microcomputer. The I / O of the single-chip microcomputer is also connected with a mute pin of each audio power amplifier chip. A serial port of the single-chip microcomputer is connected with the computer system. The loudspeaker reliability test device is concise in structure, convenient to operate and maintain, stable and reliable and long in the service life.

The invention provides a function verification method and platform for a DDR3 SDRAM (double data rate 3 synchronous dynamic random access memory) controller. The function verification method comprises steps as follows: adopting a test case to detect correctness of user read-write operation, specific user interface timing sequences or signals; adopting a port monitoring module designed with layering and object oriented technologies to detect correctness of DDR3 SDRAM port signals. According to the invention, the design of the port monitoring module adopts layering and object oriented design methods, so that various timing sequence constraints at a DDR3 SDRAM port are effectively organized in the aspects of time and space, the probability of omission is low, and maintenance and upgrading are facilitated.

The invention discloses a data checking method and a data checking device. The data checking method and the data checking device are applied to data checking of engineering bill of material (EBOM). The data checking method comprises the following steps: receiving a data export request carrying request time and a preset export rule; responding to the data export request, and exporting a freeze version EBOM according to the request time and the preset export rule; receiving a data checking request aiming at the freeze version EBOM, wherein the data checking request carries checking parameters, and the checking parameters comprise at least one item of EBOM attributes, EBOM configuration conditions and EBOM version change information; responding to the data checking request and outputting the checking result. According to the data checking method and the data checking device disclosed by the invention, the freeze version EBOM is exported according to the data request time and the preset export rule and is subjected to data checking according to different checking parameters, so that the verification efficiency of the data attributes is improved, and the management level for the EBOM data is improved.

The invention provides a vehicle air conditioner offline detection device and method, and relates to the field of vehicle air conditioner detection. The vehicle air conditioner offline detection device comprises a detection module, wherein the detection module comprises an industrial personal computer and a display screen communicating with the industrial personal computer; a signal acquisition module and a signal indication module are connected with a data communication module; the data communication module is in two-way communication connection with the industrial personal computer, and is in two-way connection with a controlled air conditioner through a communication wire harness; a signal receiving unit, a data processing and analyzing unit and an instruction sending unit are arrangedin the industrial personal computer; the signal receiving unit is used for receiving the data acquired by the signal acquisition module and sending the data to the data processing and analyzing unit;the data processing and analyzing unit is used for comparing and analyzing the received data and feedback data, and sending an analysis result to the instruction sending unit; and the instruction sending unit is used for sending an execution instruction to the signal indication module according to the analysis result. According to the vehicle air conditioner offline detection device and the method, rapid delivery inspection of the vehicle air conditioner can be realized, an error position can be determined, and the detection efficiency of a factory is improved.

The invention relates to a detection method for a secondary system of a voltage transformer, and the method is characterized in that the method comprises the steps: (1), adding a single-phase AC voltage U0 to a primary side of the voltage transformer in a parallel manner; (3), detecting the voltages of Uao, Ubo and Uco from the secondary side of the voltage transformer at the same time, and observing whether Uao, Ubo and Uco reach balance or not; (3), measuring an opening triangular voltage ULN at the third side of the voltage transformer. The method is advantageous in that the method can completely detect the wiring correctness of a secondary system of the voltage transformer; the method can detect the opening triangular polarity and opening triangular voltage of the third side of the voltage transformer; and the method can detect the voltages of secondary measurement windings of the voltage transformer at the same time. The practice proves that the method improves the power supply reliability of the voltage transformer.

The invention provides a device for length fixing of welded joint impact specimens. The device comprises a length fixing fixture, a cutting fixture and a straight ruler; and the cutting fixture is arranged in the length fixing fixture, clamping plates of the length fixing fixture and clamping plates of the cutting fixture are both of an axisymmetric structure, the symmetry axis of the clamping plates of the length fixing fixture coincides with that of the clamping plates of the cutting fixture, the width of the cutting fixture is less than that of the length fixing fixture, a length fixing clamping rotary knob is arranged at one end of the length fixing fixture, and a cutting clamping rotary knob is arranged at one end of the cutting fixture. The device can accurately conduct notch positioning at different impact positions of the welded joint impact specimens in batches, quickly and simultaneously determine length machining lines of multiple specimens according to the positioned notchpositions to achieve quick and batched length fixing of the impact specimens and check the accuracy of the notch positions after notch machining is completed.

The invention discloses a multilayer circuit board, which comprises a top outer-layer circuit board, a bottom outer-layer circuit board, a plurality of central circuit boards and a plurality of insulating layers, wherein the top outer-layer circuit board is provided with n openings at intervals in a penetrating manner from the first position to the nth position at the position close to the edge; n is an integer greater than 2; the bottom outer-layer circuit board forms the nth marking code relative to the nth position the top outer-layer circuit board; the central circuit boards form marking codes in a steeped manner relative to the first position to the nth position of the top outer-layer circuit board; a plurality of penetration holes corresponding to the openings are arranged from the marking codes to the nth position; solid structures are arranged from the first position to the marking codes; and the insulating layers are arranged between the two circuit boards. By matching the solid structures of the central circuit boards with the penetrating structures, the accuracy of the arrangement of the central circuit boards can be detected easily.

The invention discloses a control logic verification platform for a million-capacity-grade turbine island, and relates to the field of turbine control. The invention aims at solving the problems thata command sent by an existing turbine island control system cannot be fed back, the correctness of the control logic cannot be verified, and the control logic cannot automatically execute the next sequential control step. A simulation unit is used for constructing a turbine auxiliary system and a turbine body simulation model, receiving a control signal and executing a control command, and feedingcurrent state information of the simulation model back to a distributed processing unit; the distributed processing unit is used for receiving a control signal of a man-machine interface station, andstarting the simulation model according to a set starting program in order to make the turbine auxiliary system and the turbine body simulation model carry out operation control in sequence; and theman-machine interface station is used for inputting the control signal to the distributed processing unit, and is further used for displaying state information and comparing the feedback state information with the input control signal. The control logic verification platform is used for verifying the control logic of the turbine island.

The invention provides a hydraulic heavy load mechanical arm augmented reality operation control system which comprises an site image information acquisition module, a man-machine interaction operating module, a MySQL database module, a cloud server module, a data visualization module, an anticollision detecting module, a data integration module and an emergency stop module; the site image information acquisition module is used for acquiring the image information of field operation and the spatial position information of a target object; the man-machine interaction operating module is used forenabling an operator to get involved in the operation procedure; the MySQL database module is used for storing the user information, the image information and the path planning information; the cloudserver module is used for generating a target model at the cloud terminal and combining the path planning information to calculate the path according to the operating task; the data visualization module is used for displaying the data analysis result on an operating interface; the anticollision detecting module is used for verifying whether the calculated path can be carried out safely and reliably on the aspect of model data; the data integration module is used for writing the verified reliable data in data frames according to the protocol requirements; and the emergency stop module is usedfor disconnecting control over the mechanical arm immediately in an emergency situation. The hydraulic heavy load mechanical arm augmented reality operation control system can improve the operating intelligence, operating friendliness and reliability of the mechanical arm.

The invention relates to the technical field of power grid dispatching, in particular to a transformer substation monitoring information control and check method, which comprises the following steps:A) inputting equipment information; B) establishing a software version application reference table and an association table; C) as the working data carries equipment information, and if the software version number is not input, refusing the working data, and giving an alarm; D) if the software version numbers are inconsistent, entering a step F; E) if both the parameter configuration table numberand the point table number are consistent, receiving the working data, otherwise, refusing the working data and giving an alarm; F) notifying telecontrol equipment to upload the latest table, comparing the latest table with the current table and the historical table, and if the comparison is passed, receiving the working data; and G) comparing the working data with the previous working data, if the format characteristics are consistent, receiving the working data, otherwise, establishing analogue simulation, and if the format characteristics are passed, receiving the working data, otherwise, rejecting the working data and giving an alarm, The transformer substation monitoring information control and check method has the beneficial effect that the correctness of each piece of working data can be ensured.

The invention discloses a multifunctional simulation test apparatus for a pavement construction machinery product control system. The test apparatus comprises an operating console, and a multi-simulation-signal and switch-signal generator, a display screen, a signal input interface and a signal output interface which are installed on the operating console, wherein the signal output end of the signal input interface is connected with the signal input end of the display screen, the signal input end of the signal input interface is connected with the signal output end of a controller of the pavement construction machinery product control system; the signal output end of the multi-simulation-signal and switch-signal generator is connected with the signal input end of the signal output interface, and the multi-simulation-signal and switch-signal generator comprises a voltage signal generation unit, a current signal generation unit, a waveform signal generation unit, a PWM signal generation unit and a switching quantity signal generation unit; and the signal output end of the signal output interface is connected with the signal input end of the controller. The invention also discloses a test method.

The invention discloses a method for realizing multi-core cache consistency verification, which comprises the following steps of: S1, when a core updates a cache line to an M state, checking whether the cache line exists in caches of other cores; s2, when each core updates a cache line to an E state, checking whether the cache line exists in caches of other cores or not; s3, when one core updates the cache line to the S state, checking whether the cache line exists in the caches of other cores, if the state of other cores is S, checking whether the cache line data of the two cores are consistent, and meanwhile, checking whether the cache line data is consistent with the data in the memory; and S4, when one core updates the cache line to the I state, other cores are possible to be in any state, and check is not needed. According to the method and the device, by monitoring the update information of the first-level cache and the second-level cache and checking the data in the memory, the cache can be ensured to comply with an MESI consistency protocol, and meanwhile, the correctness of the data can be ensured.

The invention relates to a multi-core cable wire testing device, aiming to solve the problems of low efficiency, easy errors, hardly discovery of poor contact caused by faulty welding between a wire and a terminal, and the like in the prior art. The multi-core cable wire testing device comprises a testing instrument and a vibrator, wherein the testing instrument comprises an operation panel and atesting circuit which is formed by sequentially connecting a multivibrator, a frequency division loop, a sequential output loop and a display loop in series, a power supply supplies power to the multivibrator and the loops, and two testing sockets are respectively connected with the sequential output loop and the display loop. The invention detects a multi-core cable wire under the vibration condition, can not only detect the wiring correction, but also detect whether hidden danger, such as poor contact due to faulty welding, and the like exists.

The invention discloses a data verification method and device, which are applied to the data verification of the EBOM of the design material list. The method includes: receiving a data export request carrying a request time and a preset export rule; responding to the data export request, and according to Request time and preset export rules to export the frozen version of EBOM; receive a data verification request for the frozen version of EBOM, the data verification request carries verification parameters, and the verification parameters include: EBOM attributes, EBOM configuration conditions and EBOM version change information At least one item of ; respond to the data verification request, and output the verification result. The present invention derives a frozen version of EBOM according to the request time and preset export rules, and performs data check on the frozen version of EBOM according to different check parameters, thereby improving the efficiency of data attribute verification and the management level of EBOM data.

The invention discloses a loudspeaker reliability test device comprising a machine box which is internally provided with a computer system. The computer system is provided with a LabView processing module and an audio card. The loudspeaker reliability test device also comprises a test card which is arranged in the machine box and connected with the computer system. The test card is provided with multipath of test channels which are formed by audio power amplifier chips, sampling resistors and loudspeaker connecting terminals in a series-connection way. The input end of each audio power amplifier chip is connected with the output end of the audio card. The test card is also provided with a voltage and current acquisition module and a single-chip microcomputer. Two ends of each sampling resistor and each loudspeaker connecting terminal are connected with the input end of the voltage and current acquisition module. The output end of the voltage and current acquisition module is connected with an I / O of the single-chip microcomputer. The I / O of the single-chip microcomputer is also connected with a mute pin of each audio power amplifier chip. A serial port of the single-chip microcomputer is connected with the computer system. The loudspeaker reliability test device is concise in structure, convenient to operate and maintain, stable and reliable and long in the service life.

The invention discloses a branch coefficient calculation method based on real-time fault data. Acquiring a real-time fault line from an energy management system; searching other lines on the power supply paths on the two sides of the fault line according to the energy management system model topology; calling the waveform list of the line protection device corresponding to the line on the power supply path, calling the waveform file of the line protection device corresponding to the line on the power supply path, calculating the fault current of the waveform file, and calculating the actual branch coefficient in the fault operation mode through real-time topology. According to the method, the actual analysis coefficient at the fault moment is obtained, and powerful help is provided for protection personnel to check the protection constant value.

The invention belongs to aircraft maintenance tooling, in particular to throttle lever maintenance. A kind of throttle lever inspection type frame, its technical proposal is: the bracket (4) is divided into two parts, separated on both sides of the type frame, the bracket (5) is hinged on the upper part of the bracket (4) through the shafts (52) at both ends; The hole stringer (7) is connected with the long hole (42) in the middle part of the bracket (4); the non-hole stringer (8) is connected with the round hole (43) in the lower part of the bracket (4); the oblique support (1) and the straight support The seat (2) is assembled with the pulley (6) respectively into an oblique pulley assembly at 45° to the horizontal plane and a straight pulley assembly parallel to the horizontal plane, and is fixed on the perforated stringer (7) as required; the stop pin (3) is inserted in the On the through hole that coincides with the bracket (5) on the bracket (4). The application of the invention can effectively check the assembly correctness of the throttle lever before the throttle lever is installed on the aircraft, and compared with the prior art, the production cost is reduced and the working efficiency is improved.

The invention discloses a system and a method for double-cache calibration of DMX512 data of a stage lamp. The system comprises a receiving device, a memory, a processor, and a judger. The method comprises the steps of receiving data from a DMX512 interface; defining two cache regions for receiving data, BUFF1 and BUFF2, wherein the BUFF1 receives channel data needed by a stage lamp, and the BUFF2receives a DMX512 data packet; comparing the DMX512 data packet received by the BUFF2 with a DMX512 protocol; and if the DMX512 data packet received by the BUFF2 is consistent with the DMX512 protocol, outputting the channel data of the BUFF1 to the stage lamp, otherwise, deleting the channel data of the BUFF1 and re-receiving data. According to the invention, a reliable data stream can be obtained through single judgment in unreliable transmission, so that the stage lamp can obtain a correct channel value required by the lamp in unidirectional DMX512 data.

The invention relates to a power plant CT secondary through-current method, which comprises the following steps of: connecting all current loops of each CT in series, and checking the correctness and integrity of wiring of all CT secondary loops by applying current at one position of a certain local terminal box during a CT secondary through-current test; further checking the correctness of a CT secondary circuit by applying currents with different amplitudes and phase sequences, and checking the correctness of a generator-transformer group protection cabinet, a fault recording cabinet and DCS background sampling and parameter setting at the same time. Through-flow does not need to be carried out at each CT terminal, the test efficiency is improved, the practicability is high, and the method is suitable for different power plant electrical main systems.

The invention relates to a computer system cipher module detection method and device and a storage medium, and the method comprises the following steps: calling a basic hardware cipher module, and detecting the basic hardware cipher module according to the encryption and decryption results of the basic hardware cipher module on a verification file; calling an operating system cryptographic module to detect the operating system cryptographic module according to encryption and decryption results of the operating system cryptographic module on the verification file; calling a middleware password module, so as to detect the middleware password module according to encryption and decryption results of the middleware password module on the verification file; and calling the application layer cryptographic module to detect the application layer cryptographic module according to the encryption and decryption results of the verification file by the application layer cryptographic module. According to the technical scheme, the problem that the discretely distributed cryptographic modules in the computer system cannot be effectively detected is effectively solved. Meanwhile, the detection efficiency is effectively improved.

The invention discloses a system and a method for double-cache calibration of DMX512 data of a stage lamp. The system comprises a receiving device, a memory, a processor, and a judger. The method comprises the steps of receiving data from a DMX512 interface; defining two cache regions for receiving data, BUFF1 and BUFF2, wherein the BUFF1 receives channel data needed by a stage lamp, and the BUFF2receives a DMX512 data packet; comparing the DMX512 data packet received by the BUFF2 with a DMX512 protocol; and if the DMX512 data packet received by the BUFF2 is consistent with the DMX512 protocol, outputting the channel data of the BUFF1 to the stage lamp, otherwise, deleting the channel data of the BUFF1 and re-receiving data. According to the invention, a reliable data stream can be obtained through single judgment in unreliable transmission, so that the stage lamp can obtain a correct channel value required by the lamp in unidirectional DMX512 data.

The invention discloses a multifunctional simulation test apparatus for a pavement construction machinery product control system. The test apparatus comprises an operating console, and a multi-simulation-signal and switch-signal generator, a display screen, a signal input interface and a signal output interface which are installed on the operating console, wherein the signal output end of the signal input interface is connected with the signal input end of the display screen, the signal input end of the signal input interface is connected with the signal output end of a controller of the pavement construction machinery product control system; the signal output end of the multi-simulation-signal and switch-signal generator is connected with the signal input end of the signal output interface, and the multi-simulation-signal and switch-signal generator comprises a voltage signal generation unit, a current signal generation unit, a waveform signal generation unit, a PWM signal generation unit and a switching quantity signal generation unit; and the signal output end of the signal output interface is connected with the signal input end of the controller. The invention also discloses a test method.