34results about How to "Check correctness" patented technology

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 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 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 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 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 segment segmentation detection method and system, the method comprising: obtaining the segment segmentation result obtained by segmenting the reading voice; performing voice recognition on the reading voice to obtain the recognition result; according to the The reading text corresponding to the reading voice calculates the recognition rate of the segmentation result and the recognition rate of the recognition result respectively; if the recognition rate of the segmentation result is higher than the recognition rate of the recognition result, then determine that the segmentation result is normal; otherwise It is determined that the segmentation result is abnormal. The invention also discloses a spoken language evaluation method and system. The present invention can effectively detect whether the segment segmentation result is abnormal, thereby ensuring the accuracy of the evaluation result.

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 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 discloses a method for improving intelligibility of program operation information, for decoding numeric information outputted in the program operating course into the character information the numeric information expresses; and the method: marking all character information for explaining the numeric information in a source program and in a numeric information output statement, appointing the needed character information to explain the numeric information; scanning the source program, and according to the marks, establishing a corresponding relation between numeric information and character information; receiving operating information outputted in the program operating course and obtaining the numeric information from the operating information; using the obtained numeric information to inquire the corresponding relation to obtain the corresponding character information, and replacing the numeric information in the operating information with the character information and finally outputting corresponding information.

The invention relates to a GOOSE overall test device for an intelligent substation and a test method for the test device, belonging to the technical field of power system detection. The device includes a control unit, an SCD analysis unit connected with the control unit, a signal receiving unit for receiving GOOSE messages and a signal sending unit for sending analog GOOSE messages. In this test method, after the SCD analysis unit constructs the simulated GOOSE message basis of the virtual terminal, and the actual value of the virtual terminal in the power communication link obtained by the signal receiving unit, the simulated GOOSE message for the test is composed, and the simulated equipment and requirements are generated. The logical relationship of the virtual terminal value change of the test device is used as the basis for manual judgment. The test device of the invention uses the SCD file of the intelligent substation to simulate the GOOSE message and the GOOSE subscription relationship of the whole station, and can test on the spot.

The invention provides an augmented reality control system for a hydraulic heavy-duty manipulator, which includes an on-site image information collection module for collecting image information of on-site operations and spatial position information of target objects; a manual interactive operation module for operators to intervene in the operation process ; MySQL database module, used to store user information, image information and path planning information; cloud server module, used to generate target models in the cloud, and calculate paths according to job tasks combined with path planning information; data visualization module, used in the operation interface Display data analysis results; anti-collision detection module, used to verify whether the calculated path can be executed safely and reliably at the model data level; data integration module, used to write verified reliable data into the data frame according to the protocol requirements; emergency stop module, It is used for emergency disconnection of the control of the robotic arm in emergencies. The invention can improve the intelligence, operation friendliness and reliability of the operation of the mechanical arm.

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 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.