31results about How to "Avoid testing errors" patented technology

An embodiment of the invention discloses a vehicle instrument table test method, device, system, equipment and a storage medium, and the method is characterized by comprising the following steps of determining a currently adopted test mode; determining a working mode of the chassis dynamometer and an environmental mode of environment simulation equipment according to the test mode; acquiring the actual test value of the target vehicle instrument table and the instrument table display value when the target vehicle is tested in the working mode and the environmental mode, wherein the target vehicle instrument table includes a speedometer and an odometer; and determining the test result of the target vehicle instrument table based on the actual test value and the instrument table display value. The embodiment of the invention can realize the test of the target vehicle instrument table through the chassis dynamometer in different test modes, and control the environmental conditions duringthe test through the environment simulation equipment, thereby avoiding the test error caused by the environmental condition change, increasing the test flexibility and improving test coverage and test accuracy.

The invention discloses a test data acquisition method and device, computer equipment and a storage medium, and belongs to the technical field of performance testing, the method comprises the following steps: receiving a test request sent by a test system, the test request indicating first data to be acquired on a first node; according to a stable data feature template, inquiring second data associated with the first data, wherein the stable data feature template stores the second data associated with the first data; determining whether second data is already stored in a second node, wherein the second node is an upstream node or a downstream node of the first node; if the second data is already stored in the second node, obtaining the second data from the second node; and sending the first data to be acquired on the first node and the second data acquired from the second node to a test system. Therefore, the data acquisition time can be accurately known, and the test stability and thetest efficiency are improved.

A detection method for pipelines in machine-controlled leakage and compliance tests of an anesthetic machine, comprising the following steps: step S10, entering a machine control leakage test and compliance test state of an anesthetic machine; step S20, the anesthetic machine piping air in an air passage outside a folding bag (6) according to a preset flow rate, and a control unit also controlling and detecting a pressure value in the air passage and the air piping time at the same time; step S30, the control unit acquiring the pressure value in the air passage and the air piping time, and a judgment unit judging whether a condition for the anesthetic machine to stop piping air is achieved or not according to the pressure value in the air passage and the air piping time; step S40, according to the pressure value in the air passage and the air piping time, obtaining a pressure change rate in the air passage in the whole air piping process; and step S50, according to the pressure change rate, judging whether pipelines in leakage and compliance tests are correctly connected or not. Whether pipelines in leakage and compliance tests are correctly connected or not can be learned with the method, thereby avoiding test errors resulting from pipeline connections. Also provided is a detection device for achieving the detection method.

A communication apparatus and a test method thereof are provided. The communication apparatus includes a wireless communication module, a wireless driver and an application unit. The test method of the communication apparatus includes the following steps: after the communication apparatus performs a booting operation, setting an operation mode as a default mode by the wireless driver to activate a first wireless interface and a second wireless interface of the wireless communication module, and controlling the wireless communication module by the wireless driver to not transmit a wireless signal. The test method further includes re-setting the operation mode according to a test item, by the application unit when the application unit receives an execution command, so that the wireless driver controls the wireless communication module to transmit the wireless signal corresponding to the operation mode.

The invention provides an additional mass based determination method and device for density of a composite grout rock-fill dam. The method includes the following steps: placing a backing plate on a composite grout rockfill material, after three days of coagulation of the to-be-determined composite grout rockfill material, and stacking a plurality of mass blocks on the backing plate; taking a massblock of an uppermost layer as a detection point, collecting natural vibration frequency, removing the mass block of the uppermost layer, taking a mass block of a sub-upper layer as the detection point, repeating the collection process until all the mass blocks are removed, and obtaining the measured natural vibration frequency on each of the mass blocks; and obtaining the density of the compositegrout rockfill material based on the measured natural vibration frequency on each of the mass blocks. Therefore, abnormal signals, caused by excessive surface strength of the composite grout rock-fill dam, are avoided; and test errors, caused by changes of mechanical parameters of a rockfill in a coagulation process of the composite grout rockfill material, are avoided.

The invention discloses a Labview-based alarm lamp box test system and method. The system comprises a signal conversion machine, an imaging system, and a test machine. The imaging system integrates a spectrum testing function and is used for testing the optical performance of the alarm lamp box and recording images in the testing process; and the test machine is loaded with a test program written based on Labview, and the test program is utilized to complete test data processing, control signal generation and test result generation. The system and the method have the beneficial effects that the one-key test can be performed and the test result can be produced through a Labview-based test software interface only by completing the installation of a product on the test system, so that the test working efficiency is greatly improved, test errors caused by human factors are avoided, and meanwhile, a large number of test equipment requirements caused by product differences are reduced (the number of special test equipment is reduced).

The invention provides a circuit and method for testing the cycle time of an SRAM. The circuit comprises an address cycle shift register, a data cycle shift register and a control cycle shift register connected to the SRAM; address signals, data signals and control signals for the next test can be directly generated by utilization of pre-configured initial values and subsequent input clock pulse signals in the various cycle shift registers; a complex algorithm and logic calculation are unnecessary; the circuit is simple in structure and rapid in test speed; the overall test time of a semiconductor integrated circuit can be greatly shortened; and simultaneously, because of design of the cycle shift registers, the problem of test fault due to the fact that a BIST circuit on the periphery of the SRAM is failed at first in the prior art can be avoided.

The invention discloses an exception test method and system based on a virtual instruction set platform and a storage medium, and the method comprises the steps: S1, building a virtual target system on the virtual instruction set platform according to to-be-tested hardware information; s2, selecting an abnormal test component from an abnormal test component library according to the selected VCPU and the test plan, and generating a dynamic link library file according to the selected abnormal test component; s3, loading a bin file of the control software on the virtual target system, starting the virtual target system to enter a normal operation mode, and confirming that each monitoring variable accords with an expected value; and S4, the engine simulation model upper computer dynamically triggers the abnormal test component through the dynamic link library file, executes an automatic test, and stores an output result of the component. According to the exception testing method, the virtual target system is set up on the virtual instruction set platform for testing, the method is not limited by hardware resources, testing is convenient, and meanwhile testing errors caused by testing environment influences are avoided.

The invention provides a light interference detector, which comprises a detection light path arranged in a housing. The detection light path comprises a light source, and light emitted by the light source is divided into two beams by the detection light path; the two beams of light respectively pass through a detection object and a standard object and then converge to generate interference; interference light is projected to a reticle; the reticle can be observed through an eyepiece; a pointer is arranged to point to the reticle; the pointer can be moved by a pointer regulator to point to different scales on the reticle; the pointer is fixedly connected with a sliding block; the sliding block contacts a sliding resistor; one end of the sliding resistor and the sliding block are respectively connected with one pole of a resistor reading circuit; and when the pointer and the light interference fringes are observed to coincide in position on the reticle through the eyepiece, the reading key is pressed down, the resistance reading circuit reads the resistance value between one end of the sliding resistor corresponding to the position of the pointer and the sliding block, the resistancevalue is converted into a measurement value of the detection object after being operated by a single-chip microcomputer, and the measurement value of the detection object is displayed outwards through a display screen.