121results about How to "Test coherence" patented technology

The invention provides a program testing method, which comprises the following steps of extracting a plurality of test cases from a test program and executing the test cases at a mobile terminal one by one in order to test a to-be-tested program; obtaining test result data, and re-executing the test case corresponding to the test result data when the test result data shows that the to-be-tested program has program crash or unexpected exit; and executing the next test case if re-execution is carried out for the preset times and the test result data still shows that the to-be-tested program has program crash or unexpected exit. The invention also provides a program testing device and system. According to the program testing method, device and system, the subsequent test can be continued to finish when the tested program has program crash or unexpected exit in the test, so that the whole test process is guaranteed to go well, and thus the program testing efficiency is improved.

The invention provides an MTF test device and test method for an off-axis three-mirror optical system with a large field of view, which are easy to operate and easy to realize. The test method includes the steps of firstly determining the specific position of a plane mirror using a pentaprism and an autocollimation theodolite to ensure that the plane mirror reflects an optical path for 90 degrees so that the reflected optical path by the plane mirror enters a field of view of an off-axis three-mirror optical system under test completely; secondly, deflecting a detector of an MTF measurement system; and thirdly, finding out an exact image plane position and measuring a transfer function by the MTF measurement system.

The invention relates to a test platform of a balance valve, which comprises a test loop, wherein the test loop mainly comprises a water tank, a pressure stabilizing water pump, a flow detecting pipeline and a balance valve interface unit which are connected in series by water pipes; the balance valve interface unit comprises one or more balance valve interface branches; each balance valve interface branch is provided with a balance valve interface and a pressure detecting instrument for detecting a pressure difference at both ends of the balance valve interface; the balance valve interface branches are connected in parallel; and all the balance valve interfaces have same or different connecting structures. The platform realizes a detecting test of the balance valves with different diameters, is convenient for the detection of the balance valve and can also carry out automatic control by a control device, have stable detecting result and small offset and improve the detecting efficiency.

The invention provides an automatic startup and shutdown device of a mobile phone. The device comprises a base (1), a transverse sliding rail (2), a longitudinal sliding rail (8) and a key control device, wherein the transverse sliding rail (2) is parallel with the longitudinal sliding rail (8), so that a sliding block (6) of a fixture freely moves in the X direction and the Y direction; the key control device comprises the longitudinal sliding rail (8), a lifting guide rail (11) and a horizontal guide rail (14). Because of the structure, a horizontal key (16) can move in the X direction and the Z direction, a vertical key (17) can move in the X direction, the Y direction and the Z direction, the device is matched with the fixture of the mobile phone to move in the X direction and the Y direction, and startup motion testing is completed. The fixture is flexible to modulate according to the size and applicable to mobile phones of various sizes (including ultrathin large sizes) and types (flip phones and bar phones), and the mobile phone can be placed horizontally and vertically. A manipulator moves in the X direction, the Y direction and the Z direction through an electromagnet, and the requirements for mobile phone sizes and key positions are met.

The invention relates to a flame retardant material, and particularly relates to a low-smell flame retardant polypropylene material having a needle flame property and a preparation method of the retardant polypropylene material. The preparation method of the retardant polypropylene material comprises the following various substances by weight: 57.5-97.4 parts of polypropylene, 0.2-0.5 part of a coupling agent, 2-10 parts of a flame retardant, 0-30 parts of filler, 0.2-1 part of an antioxidant, and 0.2-1 part of a lubricant. The flame retardant polypropylene material can effectively meet the requirements on low smell and needle flame.

The invention discloses a bending and anti-cracking performance testing device and a testing method. The testing device comprises a base, clamping mechanisms, force application mechanisms and a bending guiding mechanism, wherein the clamping mechanism is used for clamping a test piece; the force application mechanisms are used for supporting and driving the clamping mechanism; when one pair of theforce application mechanisms get close to each other, the test piece is bent and the clamping mechanisms located at the end parts of the force application mechanisms are driven to rotate in the forceapplication mechanisms; and the bending guiding mechanism is used for limiting the test piece to be bent in the direction of the bending guiding mechanism. According to the bending and anti-crackingperformance testing device, the clamping mechanisms rotate in the force application mechanisms so as to prevent the test piece from being subjected to a counter force to crack a clamping position; theforce application mechanisms get close to each other to drive the test piece to bend, and influences, caused by stress concentration, on bending and cracking of the test piece, are reduced, so that the accuracy of testing results is improved; and the bending guiding mechanism is arranged and the bending direction is controllable when the test piece is bent, so that photographing equipment is fixed at a certain part when operation including photographing, collection and the like needs to be carried out and other positions do not need to be adjusted, and a test is carried out smoothly.

The invention discloses a test bracket for a wireless charging device. The test bracket includes a vertical motion mechanism which is used for mounting a receiving coil and driving the receiving coilto perform vertical motion, a horizontal motion mechanism which is used for mounting a transmitting coil and driving the transmitting coil to perform horizontal motion, and a supporting mechanism which is used for mounting the vertical motion mechanism and the horizontal motion mechanism. When testing is performed, a distance between the receiving coil and the transmitting coil can be changed by operating the vertical motion mechanism; the relative offset of the receiving coil and the transmitting coil can be changed by operating the horizontal motion mechanism; and at the same time, under thejoint action of the vertical motion mechanism and the horizontal motion mechanism, the test of the charging coil of a wireless charging pile device can be successfully completed; and since manual movement operation of the receiving coil and the transmitting coil is abandoned, instead, the movement operation of the receiving coil and the transmitting coil is realized through the mechanical movement of the vertical motion mechanism and the horizontal motion mechanism, the motion adjustment of the receiving coil and the transmitting coil has greater precision and accuracy, and at the same time,test accuracy and the reliability of test results are improved.

The invention relates to an anti-interference direct current resistance testing device, which adopts the structure that a direct current, constant voltage and constant current source is connected with an impedance matching unit; the impedance matching unit and a data testing and calculating unit are respectively connected with a standard resistance and measured resistance sampling unit, a relay test action unit and an interference voltage detecting unit; the data test calculating unit is connected with a display unit; the display unit is connected with a keyboard and an over-voltage protection unit; and the keyboard and the over-voltage protection unit are connected with a storage and printing unit. The device can meet the requirements of achieving smooth and accurate test of direct current resistance under the condition of a 350V relative interference voltage or a 100V interphase interference voltage.

The invention discloses a distributed system test method and device, computer equipment and a storage medium. The distributed system test method comprises the following steps of: obtaining a distributed system test request, wherein the distributed system test request comprises a target test module, a target test type and a target test time; obtaining communication link data of the target test module, wherein the communication link data comprises a target I/O interface quantity; if the target I/O interface quantity is greater than an idle I/O interface quantity in the target test time, obtaining and displaying an idle time period in which the idle I/O interface quantity is greater than or equal to the target I/O interface quantity; and obtaining an adjusted test time, and if the current system time arrives the adjusted test time, taking over a communication link of the target test module, and testing the target test module on the basis of the target test type. The distributed system test method is capable of ensuring the distributed system test convenience and improving the distributed system test efficiency.

The invention discloses a control method of an air conditioner. The control method of the air conditioner comprises the following steps: a start instruction of an outdoor fan of the air conditioner isreceived to control startup of the outdoor fan of the air conditioner; after the outdoor fan of the air conditioner is started, variable frequency rules of an input power supply of the outdoor fan ofthe air conditioner are obtained; switch frequency adjusting rules of the outdoor fan of the air conditioner are determined according to the variable frequency rules of the input power supply of theoutdoor fan of the air conditioner; and variable frequency operation of the outdoor fan of the air conditioner is controlled according to the switch frequency adjusting rules. The invention further discloses a control device of the air conditioner and a compute readable storage medium. The control method of the air conditioner effectively staggers electromagnetic disturbance, so that the air conditioner can smoothly pass through EMI test when using an alternating-current speed adjusting fan.

The invention discloses a method for testing consistency of FRU information. The method comprises the steps that the FRU information is written into a text file, and an FRU refreshing script is executed to refresh the FRU information; the refreshed FRU information is compared with the FRU information in the text file, and whether the FRU information is successfully refreshed is judged. According to the method, whether the FRU information is consistent can be judged by directly checking text file content, manual checking is avoided, and working efficiency and accuracy are improved.

The invention discloses an automobile door hinge corrosion resistance detecting device comprising a main body casing and a control cabinet, wherein the outer surface of the upper end of the main bodycasing is movably provided with a visible box cover, a connecting shaft is fixedly connected to the outer surface of the rear end of the visible box cover, the outer surface of the connecting shaft iscovered with a fixed iron piece, and a test box is fixedly mounted on the outer surface of the lower end of the visible box cover. The automobile door hinge corrosion resistance detecting device hasa relatively-comprehensive detection effect, and can ensure that the outer surface of a hinge is evenly heated and receives a uniform liquid during detection, so that test results are more accurate, the automobile door hinge corrosion resistance detecting device has a better waste liquid treatment effect to ensure the inside of the automobile door hinge corrosion resistance detecting device may not be corroded by an acidic liquid, the automobile door hinge corrosion resistance detecting device can better carry out centralized treatment and movement of waste liquid, has a better fixing effect,can better fix the hinge, and can adjust the length of a clamp according to the size of the hinge. The scope of use of the device is enlarged.

The invention discloses a semiconductor element sorting and testing all-in-one machine. The semiconductor element sorting and testing all-in-one machine comprises a base, wherein a supporting frame isfixedly mounted on the upper surface of the base; a transverse beam is fixedly mounted at the top of the supporting frame through a bolt; a movable plate is movably mounted at one side of the transverse beam; a hoisting arm is movably mounted at one side of the movable plate; a grasping mechanism is fixedly mounted at the bottom end of the hoisting arm; a socket plate is mounted on the upper surface of the base; a testing socket is mounted on the socket plate; a plurality of mounting grooves are formed in the testing socket; the grasping mechanism comprises a mounting plate; a plurality of outer splines are rotatably mounted on a supporting seat I; a ventilation pipe is movably mounted at the inner sides of the outer splines along the vertical direction; and a suction nozzle is fixedly mounted at the bottom of the ventilation pipe. The semiconductor element sorting and testing all-in-one machine disclosed by the invention can be used for testing a plurality of semiconductor elements in one time and the working efficiency is high; and angles of the semiconductor elements are convenient to adjust so that the semiconductor elements are accurately put into the mounting grooves and themounting speed of the semiconductor elements is rapid.

The invention discloses a five-point recognition method for CCDs (Charge Coupled Devices). The method includes the following steps that: a PCB (printed circuit board) is fixed, three PIN holes on the PCB are positioned, two addition points are selected from the PCB and marked as MARK1 and MARK2 respectively; whether deformation occurs in the PCB is judged through judging whether the triangle of the PIN holes of the PCB is totally equal to the triangle of the PIN holes of a template, if no deformation occurs in the PCB or the expansion and shrinkage error r of the PCB is smaller than 1/2 (l+d), a coordinate system is built with a small-deformation reference edge of the PCB, namely, the opposite side of the smallest-deformation angle of the PCB is adopted as an X axis, and a PIN hole coordinate system is built with one endpoint or the middle point of the side adopted as an origin point; an included angle between a ling segment Mark1Mark2 and a line segment template Mark1 and template Mark2 is calculated, so that a rotation shift angle is obtained; the point Mark1 and point Mark2 are shifted to a fixture center coordinate system from the PIN hole coordinate system; and the translation quantities of the PCB on an X axis and a Y axis are recorded as X and Y respectively, and a fixture (or the PCB) is made to move according to X, Y and Theta (or -X,-Y and -Theta) on the basis of the rotation shift angle. The recognition method of the present invention is more accurate and more stable.

The invention relates to a packer for formation testing and a method for performing formation testing by adopting the packer. The packer comprises an upper joint, wherein a conical female thread is formed in the upper end of the upper joint, a core pipe extending downwards is screwed in an internal thread in the lower end of the upper joint, and the lower end of the core pipe is inserted into an upper port of a lower joint and is sealed through an O-shaped ring; a conical male thread is formed in the lower end of the lower joint; and a bypass mechanism capable of communicating upper liquid flow and lower liquid flow of the packer is arranged on the periphery of the core pipe and below the upper joint, a setting mechanism is arranged below the bypass mechanism, a shear pin mechanism is arranged below the setting mechanism, and a transposition mechanism for controlling bypass and setting is arranged below the shear pin mechanism. During well descending, the bypass is opened to communicate upper and lower annuluses, after in place, the core pipe is rotated, the bypass is closed, setting is performed, stratum fluid enters a string, then the bypass is opened, unsetting is performed, andthe string is lifted. In the drilling process, it is ensured that the straddle packer cannot be set in advance, so that packer rubber sleeves are effectively protected, and the straddle test successrate is practically increased.

The invention relates to a method for extracting and modifying BIOS in an Efi environment. The method is characterized by comprising the following steps that step1: module information is uploaded to a client; step2: a server is started to get into the Efi environment, to locate a folder where the module information is stored; step3: an export module imports optional parameters of a BIOS text document into the BIOS text document, the BIOS text document is automatically saved to the folder where the module information is stored, and that exporting file succeeds is prompted if saving succeeds; step4: the client is connected to a computer and the BIOS text document is opened; step5: BIOS options needing to be modified are searched for and then modified, and after modification of all the BIOS options needing to be modified is completed, the BIOS text document is saved at the original location of the client; step6: an import module imports optional parameters of the modified BIOS text document into the BIOS text document, that importing file succeeds is prompted if importing is completed, and then modifying the BIOS options of the server is completed.

The invention provides a static cracking agent expansion force testing device and belongs to the technical field of rock engineering. The static cracking agent expansion force testing device comprisesa testing device body internally provided with a reaction cavity, a water injection pipe and a rubber sleeve, wherein the reaction cavity is formed in a temperature control system, the water inlet end of the water injection pipe is arranged outside the reaction cavity, the water outlet end of the water injection pipe extends into the reaction cavity, the end portion of the water outlet end is provided with a baffle for plugging an outlet of the water injection pipe, the side wall of the portion, extending into the reaction cavity, of the water injection pipe is provided with a water injectionhole enabling the inner cavity of the water injection pipe to be communicated with the reaction cavity, the rubber sleeve sleeves the side wall, provided with the water injection hole, of the water injection pipe and is used for plugging an outlet of the water injection hole. The invention also provides a static cracking agent expansion force testing method. By adopting the static cracking agentexpansion force testing device and the static cracking agent expansion force testing method, the technical problems are solved that at present, an expansion force testing device cannot measure the change of an expansion force of a static cracking agent during water injection and cannot achieve temperature control.

The invention provides polymer material density testing equipment and belongs to the field of testing equipment. The equipment comprises an equipment body, the equipment body comprises a weight testing instrument, the top of the equipment body is provided with a vacuum cover, which is detachably connected to the top of the equipment body; the top of the vacuum cover is provided with a cover body, which is connected to the top of the vacuum cover through screw joint; the lateral wall of the vacuum cover is provided with an exhaust opening; the top of the equipment body is provided with a plug-in mechanism, the plug-in mechanism comprises a slot, the external side of the slot is provided with a circular first boss, the top of the first boss is provided with a sealing ring; the bottom of the external side of the vacuum cover is provided with a circular second boss, the height of the second boss is lower than that of the first boss, a gap exists between the first boss and the second boss; and the edge of the sealing ring stretch out the first boss and extends to the space above the second boss. The provided density testing equipment can measure the weight of a polymer material in a vacuum state and then calculate the density of the polymer material, and thus more precise data can be obtained.