Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

55results about How to "Improve testing flexibility" patented technology

Built-in self-test method of FPGA logical resource

ActiveCN101515020ASimple configuration structureDifficult to designElectrical testingTest efficiencyLeft half
The invention provides a built-in self-test method of FPGA logical resource. The internal logical module of FPGA is alternately divided into a left half part and a right half part according to row. In the test process, the logical module array of the right half part is firstly configured as a to-be-tested circuit, and the rest logical module arrays are configured as a test vector generating circuit and an output response analyzing circuit, and then the logical module array of the left half part is configured as the to-be-tested circuit, and the rest logical module arrays are configured as the test vector generating circuit and the output response analyzing circuit. The circuit structure is not changed in each process. The logical resource is covered by multiple configurations and the test result is output by a built-in scan register chain. All configurations in the invention are as follows: all logical modules configured as the response analyzing circuits are in cascade connection end to end according to one-dimensional array, so as to simplify the self-test result retrieval manner. Provided that the test coverage is 100%, the built-in self-test method reduces times of the configurations of FPGA logical resource, reduces test cost and increases test flexibility, so as to improve test efficiency.
Owner:BEIJING MXTRONICS CORP +1

Electric vehicle controller model in-the-loop test system and method

The embodiment of the invention discloses an electric vehicle controller model in-the-loop test system and a method. The system comprises an input signal processing module, an output signal processing module, a first controlled object model, a vehicle controller model, and a second controlled object model, wherein the first controlled object model is used for generating a test signal according to a test case and sending the test signal to the vehicle controller model through the input signal processing module; the vehicle controller model is respectively connected with the input signal processing module and the output signal processing module for executing logic processing on the test signal to generate a control command and sending the control command to the second controlled object model through the output signal processing module; and the second controlled object model is used for executing the control command to generate an output signal and sending the output signal to the vehicle controller model through the input signal processing module. The system and the method disclosed by the embodiment of the invention have the advantages that manpower and material resources can be saved; the cost is reduced; the software integration test can be executed at the early development stage of the vehicle controller; and defects in the software can be timely found out and eliminated.
Owner:CH AUTO TECH CORP CO LTD

Device and method for quickly adjusting size of terahertz time-domain spectroscopy measurement dead zone

ActiveCN111879238AIncreased measurable target size rangeEasy to adjustUsing optical meansMountingsTime domainReflected waves
The invention relates to a device and method for quickly adjusting the size of a terahertz time-domain spectroscopy measurement dead zone, and the device comprises a terahertz antenna, a first reflector, a second reflector, a third reflector, a main reflector, a first electric moving table, a second electric moving table, and an adjustment part. The first electric moving table and the second electric moving table are erected on the optical platform; The terahertz antenna is erected on the first electric moving table, the first reflector and the third reflector are erected on the two adjustingcomponents respectively, the two adjusting components are erected on the first electric moving table and the second electric moving table respectively, the second reflector is fixedly connected to theoptical platform on one side of the second electric moving table, and the main reflector is fixedly connected to the optical platform on the other side of the second electric moving table. The firstreflector moves to reflect the wave beam emitted by the terahertz antenna to the second reflector or the third reflector, and the second reflector and the third reflector reflect the wave beam to themain reflector. The selection flexibility of the target test size of the terahertz time-domain spectral scattering measurement system is improved.
Owner:BEIJING INST OF ENVIRONMENTAL FEATURES

Light darkening test device and method for ytterbium-doped silica fiber of all-fiber structure

The invention discloses an ytterbium-doped silica fiber light darkening test device of an all-fiber structure. Signal light output by a signal source is attenuated by an optical fiber flange and an optical fiber attenuator in sequence, and then is combined with pump light output by a first pump source through a wavelength division multiplexer to form combined beam light; the combined light and thepump light output by the second pump source are respectively input through the signal end and the pump end of an optical fiber beam combiner; output light of the optical fiber beam combiner is transmitted along the ytterbium-doped optical fiber, the output end of the ytterbium-doped optical fiber is connected with the input end of a cladding light stripper in a welded mode, and an output light beam of the cladding light stripper enters an optical power detector through a low-photon darkening filtering optical fiber. The low-photon darkening filtering optical fiber is a Yb-doped optical fiber;and the concentration of doped Yb2O3 is not higher than 0.1 wt%. The light darkening test device has the beneficial effects that the light darkening test device is of the all-fiber structure, a testsystem is compact in structure, the test method is simple, the device cost is low, the signal source power can be accurately regulated and controlled, the test condition is optimized, and the test signal-to-noise ratio is high.
Owner:LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS

Built-in self-test method of FPGA logical resource

ActiveCN101515020BSimple configuration structureDifficult to designElectrical testingTest efficiencyLeft half
The invention provides a built-in self-test method of FPGA logical resource. The internal logical module of FPGA is alternately divided into a left half part and a right half part according to row. In the test process, the logical module array of the right half part is firstly configured as a to-be-tested circuit, and the rest logical module arrays are configured as a test vector generating circuit and an output response analyzing circuit, and then the logical module array of the left half part is configured as the to-be-tested circuit, and the rest logical module arrays are configured as thetest vector generating circuit and the output response analyzing circuit. The circuit structure is not changed in each process. The logical resource is covered by multiple configurations and the testresult is output by a built-in scan register chain. All configurations in the invention are as follows: all logical modules configured as the response analyzing circuits are in cascade connection endto end according to one-dimensional array, so as to simplify the self-test result retrieval manner. Provided that the test coverage is 100%, the built-in self-test method reduces times of the configurations of FPGA logical resource, reduces test cost and increases test flexibility, so as to improve test efficiency.
Owner:BEIJING MXTRONICS CORP +1

Looped network protection protocol switching time automatic testing method, equipment and system

The invention discloses a looped network protection protocol switching time automatic testing method, equipment and system. The method comprises the following steps: configuring networking equipment in a looped network according to a protocol to be tested in order that the networking equipment in the looped network is communicated with one another according to the protocol to be tested; and executing a switching or back-switching operation on the looped network equipment, and calculating a switching or back-switching time according to a difference between quantities of data packets received and transmitted within a set time after switch-off or switch-on of a port and a set data packet transmission rate. According to the automatic testing method, equipment and system, a communication with switch equipment is controlled through an automatic program, the switch-on and switch-off of the port are executed according a control instruction, and a switching time is calculated with a method of calculating a packet loss number, thereby increasing the working efficiency. On the other hand, the automatic testing method, equipment and system can adapt to various switches and various looped network protection protocols; the protocol to be tested and test times can be specified automatically as required to perform testing; and higher test flexibility is achieved.
Owner:湖州帷幄知识产权运营有限公司

Fin pitch measuring system and measuring method

The present invention provides a fin pitch measuring system. The system comprises a base, a moving device, a driving device and a laser generating and receiving device, wherein the moving device is arranged on the base, the driving device is used for driving, the laser generating and receiving device is disposed on the moving device, the laser generating and receiving device is configured to emitlaser toward fins and is capable of receiving laser reflected from the fins; the system further comprises a signal conversion circuit, a moving distance indication device, and a processor, wherein thesignal conversion circuit is connected with the laser generating and receiving device, and is configured to generate fin indication signals according to received laser is reflected when the laser scans the fins, the moving distance indication device is connected with the output end of the driving device and is configured to move along with the moving device so as to generate moving distance indication signals, and the processor is connected with the signal conversion circuit and the moving distance indication device and is configured to determine whether the pitch of the measured pins is qualified according to the fin indication signals and the moving distance indication signals. The fin pitch measuring system of the invention has the advantages of simple structure, low cost and reliabletesting method.
Owner:YORK GUANGZHOU AIR CONDITIONING & REFRIGERATION +1

A method and device for testing energy change and permeability of nitrogen-induced fracturing coal seams

The invention relates to a method and a device for testing the energy change and the permeability of a nitrogen fracturing coal seam. The device comprises a reservoir environment simulation system, a power fracturing system, a data display system and a testing system, wherein the reservoir environment simulation system comprises an axial stress loading system and a confining pressure loading system; the reservoir environment simulation system can be used for truly simulating the stress state of the coal seam; the power fracturing system can be used for pumping gas into the testing system so as to fracture coal samples; the testing system comprises a plurality of coal sample tanks, and the plurality of coal sample tanks are selected to be connected or closed according to the situation, so that the plurality of coal samples can be tested; the method comprises the steps of detecting the air tightness, arranging the coal samples, connecting and fixing the device, carrying out reservoir environment simulation, fracturing by gas injection and testing. The method and the device not only are capable of testing the energy change and the permeability of the reservoir of a single coal body, but also are capable of testing the energy change and the permeability of the reservoir under the condition that different coal bodies are combined; the method and the device are high in test flexibility and accuracy rate.
Owner:HENAN POLYTECHNIC UNIV

Test method, system and device and storage medium

The invention provides a test method, system and device and a storage medium. The method can be applied to a test server. The test server side is connected with a message queue telemetry transmission (MQTT) server side, and the MQTT server side is wirelessly connected with a plurality of terminals. The method comprises the following steps: acquiring attribute information of a to-be-tested program and a to-be-tested terminal; calling the MQTT server side, sending the to-be-tested program and the attribute information to the multiple terminals, wherein the multiple terminals are used for judging whether the terminals are the to-be-tested terminals or not according to the attribute information and executing a test task based on the to-be-tested program under the condition that the terminals are determined to be the to-be-tested terminals. Therefore, intermediate PC hardware is not needed, a test system is simplified, and hardware investment is reduced. Through the low-power-consumption IOT protocol, the resource consumption of the test server side can be reduced, asynchronous information transmission is achieved through MQ, the high-concurrency pressure of the test server side is relieved, and the test efficiency is improved.
Owner:SHENZHEN TETRAS AI TECH CO LTD

Unmanned underwater vehicle dynamic performance overland test system and test method thereof

The invention discloses an unmanned underwater vehicle dynamic performance overland test system and a test method thereof and belongs to the field of unmanned underwater vehicles. The test system structurally comprises an organic working medium evaporator, a preheater, a self-contained pressure regulator, a gas flotation turbine expansion generator, a simulated sea water condensing module and a working medium pump. A PLC controller can control a working medium pump driver according to detected data of an evaporator outlet pressure sensor and an evaporator outlet temperature sensor. The systemperforms overland simulation on the unmanned underwater vehicle working environment, accordingly, overland simulation operation on an unmanned underwater vehicle is achieved, the test flexibility anddynamic performance test efficiency of the system are improved, and the test cost is lowered. Meanwhile, the PLC controller judges whether the superheat degree at an inlet of the expansion generator is qualified or not according to the detected data of the evaporator outlet pressure sensor and the evaporator outlet temperature sensor, the system is regulated through the working medium pump driver,automatic control is achieved, and the working test stability is guaranteed.
Owner:苏州西达透平动力技术有限公司

CMU test method, device and system

The invention provides a CMU test method, device and system, and the method comprises the steps: obtaining the information of a battery sampling chip corresponding to a to-be-tested CMU and a test demand; based on the type of the battery sampling chip, a communication protocol between a BMU simulator and the CMU to be tested is configured, and the BMU simulator is used for simulating the function of the BMU; based on the number of the battery sampling chips and the configuration information of each battery sampling chip, configuring a corresponding acquisition channel of each battery sampling chip in the BMU simulator; generating a first test instruction based on the test demand; and sending the first test instruction to the BMU simulator, so that the BMU simulator converts the first test instruction into a second test instruction according to the communication protocol, and sends the second test instruction to the CMU to be tested for testing. According to the invention, the automatic test of the CMU is realized, the test efficiency of the CMU is improved, the test cost is reduced, corresponding test instructions are generated according to different test requirements, the test flexibility is higher, and the function test is more comprehensive.
Owner:章鱼博士智能技术(上海)有限公司

A model-in-the-loop testing system and method for a vehicle controller of an electric vehicle

The embodiment of the invention discloses an electric vehicle controller model in-the-loop test system and a method. The system comprises an input signal processing module, an output signal processing module, a first controlled object model, a vehicle controller model, and a second controlled object model, wherein the first controlled object model is used for generating a test signal according to a test case and sending the test signal to the vehicle controller model through the input signal processing module; the vehicle controller model is respectively connected with the input signal processing module and the output signal processing module for executing logic processing on the test signal to generate a control command and sending the control command to the second controlled object model through the output signal processing module; and the second controlled object model is used for executing the control command to generate an output signal and sending the output signal to the vehicle controller model through the input signal processing module. The system and the method disclosed by the embodiment of the invention have the advantages that manpower and material resources can be saved; the cost is reduced; the software integration test can be executed at the early development stage of the vehicle controller; and defects in the software can be timely found out and eliminated.
Owner:CH AUTO TECH CORP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products