643results about How to "Comprehensive test" patented technology

The invention discloses a version updating method and device, and belongs to the technical field of Internet. The method comprises the following steps of obtaining a gray release strategy corresponding to an updating version of a specified application; receiving a version updating request sent by a terminal, wherein the specified application is installed in the terminal; detecting whether the terminal information carried in the version updating request conforms to the gray release strategy or not; and if the terminal information conforms to the gray release strategy, issuing updating configuration corresponding to the updating version to the terminal. The version updating method and the version updating device solve the problems that a random drawing mode is used for gray release in the prior art, and the mode is lack of pertinence, so that the updating version cannot be comprehensively tested, and great risk exists under the condition of large-scale updating. The goal of selecting the terminal for testing in a targeted way according to the gray release strategy is achieved, so that the updating version can be comprehensively tested; the updating version stability is improved; and the risk during the large-scale updating is reduced.

The invention discloses a star sensor function test method based on electric injection star map, which comprises simulating the track parameter and attitude of satellite motion and simulating a star map shot by a star sensor, using the star point center to refresh and transmit part of the star map, laminating the part refreshes in the star map background of the star sensor, positioning star point, recognizing star map and calculating altitude, checking the results of the star map recognition and altitude calculation of the star sensor. The invention discloses a relative device. The invention has high refresh rate of star map, which can simulate the track altitude of star sensor and can process ground simulation test with whole star system, without additional external devices and special application condition demand, but with strong versatility.

The invention discloses a joint test device and method for expansion and frost heaving of a soil body, relates to the field of property tests of the soil bodies, and particularly relates to a device and method for a joint test of expansion rate and frost-heaving ratio of expansive soil, aiming at solving the problem of an inaccurate test aiming at the expansion characteristics of the traditional expansive soil. A sample box in the test device is arranged on a bottom plate of an incubator; a top plate and the bottom plate of an upper surface and a lower surface of the sample box are respectively connected with a low-temperature circulating bath; displacement sensors are arranged above the top plate; the bottom plate is also connected with a water supply device; each sensor is connected with a data collection system. The test method disclosed by the invention comprises the following steps: firstly, calculating zero-load expansion rate of a soil body sample through a change of a reading number of each displacement sensor, and then reducing the temperature of the top plate; freezing the soil body sample; and calculating the frost-heaving ratio of the soil body through the reading numbers of the displacement sensors. The frost-heaving ratio data obtained by the test is closer to that of engineering practice, and cognition on the frost heaving characteristics of the expansive soil is more accurate.

The invention discloses an Internet of Vehicles test system and a test method thereof. The Internet of Vehicles test system comprises an upper computer, a mobile phone terminal, a background data server and an Internet of Vehicles test platform. The Internet of Vehicles test platform comprises a CAN bus; a vehicle-mounted ECU which executes corresponding actions according to the instruction data obtained from the CAN bus or manual operation; a Vehicle-mounted T- BOX which is used for uploading the state data on the CAN bus to a background data server so that the mobile phone terminal can readthe state data; a CAN-BOX / VSPY which uploads the data on the CAN bus to an upper computer, so that the upper computer monitors whether the data on the CAN bus are correct or not. The Internet of Vehicles system does not need to be tested on a real vehicle, and many problems caused by testing on the real vehicle are avoided.

The invention discloses a three-level converter power unit double pulse test method. On the basis of a conventional two-level topology converter double pulse test idea, upper and lower bridge arms of a three-level converter power unit are decomposed reasonably, and comprehensive tests can be carried out on various conversion working conditions of the three-level converter power unit, device switching time, absorption circuit overvoltage absorption effect and drive short-circuit protection, and thus provided is a simple and effective test method for the development of a three-level converter.

The invention discloses an automatic testing method of the distribution intelligent function of power distribution terminal. The automatic testing method comprises: receiving a command of a user for setting a power distribution network grid structure and a deployment position of a tested power distribution terminal ; configuring the tested power distribution terminal according to the deployment position of the tested power distribution terminal; simulating the distribution intelligent function of the tested power distribution terminal through a computer, a relay protection tester, the tested power distribution terminal, a switchboard and an analogue switch and making a judgment; simulating a plurality of power distribution terminals in the computer, wherein the plurality of power distribution terminals communicate with the tested power distribution terminal through the switchboard; and automatically outputting a testing report. The invention further provides an automatic testing device of the distribution intelligent function of the power distribution terminal; and the automatic testing device comprises an analogue module, a communication module, a control module and a data processing module. According to the automatic testing method and device disclosed by the invention, automatic testing of the distribution intelligent function of the power distribution terminal is realized; and the method has the advantages of small demand on resources for establishing a testing platform, rapid and flexible test, comprehensive test and high testing efficiency.

The embodiment of the invention discloses an electric vehicle controller testing device and system. The electric vehicle controller testing device comprises a wire harness connection board, a signal link board and a relay load board which are arranged in a box body, wherein the wire harness connection board is in movable connection with a vehicle controller to be tested through a wire harness; the signal link board comprises a digital signal input circuit, a digital signal output circuit, an H bridge output circuit, an analog signal input circuit, a CAN communication circuit and a power supply circuit which are respectively and electrically connected with the wire harness connection board; and the relay load board comprises a relay load circuit which is electrically connected with the power supply circuit, the digital signal output circuit and the H bridge output circuit. The electric vehicle controller testing device and system send a digital test signal and an analog test signal to the vehicle controller to be tested and receive a returned digital feedback signal and returned CAN message data, a full and rapid test is carried out on the vehicle controller to be tested, and the portability is effectively improved by the design of the box body.

The invention discloses a wiring harness stretch performance detection device which comprises a working platform, a pull load mechanism and a clamping mechanism. The pull load mechanism comprises a cylinder. An output part is a piston rod of the cylinder. The clamping mechanism comprises two groups of clamping components. Each clamping component comprises two fixing plates. Arc grooves used for clamping wiring harness are arranged in the corresponding positions of the two fixing plates. One of the clamping components is fixedly arranged on the working platform. The other clamping component is connected with the output part of the pull load mechanism in a rigid mode and capable of moving under the action of the pull load mechanism. Due to the fact that load and release motion of the wiring harness to be detected are executed by a pneumatic system, the wiring harness stretch performance detection device is capable of being simple and direct, lower in cost, environment-friendly and free from pollution. Load speed is adjusted by a speed adjustment valve so that detection is more accurate, comprehensive, real and reliable. The clamping mechanism of the wiring harness stretch performance detection device is simple and direct in design and convenient to install and operate. Detail processing of the surface is unique. The surface of the wiring harness to be detected is not pressed and damaged due to the design of double-arc transition. The wiring harness is capable of being normally used after the wiring harness is detected so that waste is avoided.