291 results about "Closed loop testing" patented technology

A menu driven reprogrammable drug pump is provided with a memory, such as flash memory, a display, a keyboard, and a communications port to allow a generic pump to be programmed with a desired pump application (therapy) program and patient specific settings. Programming and data transfer with another pump or a computer to and from the patient pump is by the communications port that allows local and/or remote communications with the pump. Flash memory stores the pump application program during use. Patient safety is provided by a cassette identification system, an occlusion detection system, and a latch/lock detection system. Automated testing of the pump is by a closed loop testing system.

A menu driven reprogrammable drug pump is provided with a memory, such as flash memory, a display, a keyboard, and a communications port to allow a generic pump to be programmed with a desired pump application (therapy) program and patient specific settings. Programming and data transfer with another pump or a computer to and from the patient pump is by the communications port that allows local and/or remote communications with the pump. Flash memory stores the pump application program during use. Patient safety is provided by a cassette identification system, an occlusion detection system, and a latch/lock detection system. Automated testing of the pump is by a closed loop testing system.

The invention discloses a digital protecting tester which comprises a PWF main control board, a FT3 board, an input measuring board, an output measuring board, an Ethernet interface and an optical fiber interface. An automatic closed loop test system comprises a computer, a network connecting device and the digital protecting tester, and the digital protecting tester is connected with a protecting device by the optical fiber interface and is used for sending a sampling value and issuing/subscribing GOOSE information. An automatic closed loop test method comprises the following steps of: establishing a test task according to a test plan by a tester, automatically configuring GOOSE parameters and automatically reading/writing the set value of a relay protecting device; simulating a fault according to the test task and the protecting set value and automatically analyzing GOOSE data to obtain a test result; automatically reading the sampling value of the relay protecting device; automatically reading the switching-off/switching-on report of the protecting device; and automatically generating a complete test report by software after completing test. By the invention, the automatic test can be completed, the test efficiency is improved, and the workload of the tester is lightened.

The invention discloses an external scaler and calibrating method of new broad-band synthetic aperture radar, which is characterized by the following: modulating the signal of the received synthetic aperture radar through sine amplitude; making two sides of the Doppler signal of synthetic aperture radar of scaler generate symmetrical mirror-image spectrum; utilizing positional filter to extract the mirror-image spectrum; separating the synthetic aperture radar signal from ground clutter. The scaler contains receiving and transmitting antenna, RF mode and modulating mode. The invention realizes external scaling signal separated from ground clutter completely to form loop testing circuit with radar transceiver system, antenna, transmitting path and external scaler without influencing by ground clutter, which improves the precision of external scaler greatly under complex and high-ground clutter condition.

The invention relates to an automatic testing method of embedded software, which is realized through the following steps of: editing and establishing a test case base; establishing a test flow framework in a flow chart editing interface; inserting various test cases into a test flow chart according to the requirement of a test task; converting the edited flow chart into a test sequence on a simulated test platform by utilizing a script generator; and driving an I/O interface and a communication interface on the simulated test platform, exciting the software to be tested and receiving a feedback control signal. The automatic testing method of the embedded software has the advantages that open-loop testing and closed-loop testing can be carried out; a peripheral environment simulation base and an interface module base with strong functions can be formed through continuously adding interface modules to reduce subsequent secondary development, so that resources are recycled.

The invention discloses a system for evaluating the disturbance rejection rate parasitical loop of a strap down infrared seeker. The system comprises a target simulator, a three-axis rotary table, the seeker and an emulation computer, wherein the target simulator simulates the movement relation of a target; the strap down infrared seeker detects the infrared signal source of the target simulator, and outputs a missile-target LOS (Line of Sight) rate obtained after decoupling filtering to the emulation computer, the emulation computer calculates the attitude and position information of a missile according to a practical kinetic model of the missile and transmits the attitude angle of a missile body to the three-axis rotary table to simulate the movement of the missile body; the emulation computer figures out a theoretical missile-target LOS rate and transmits the theoretical missile-target LOS rate to the target simulator to simulate the movement of the missile-target to form an entire closed-loop testing system. In the whole process, the emulation computer stores test data for final disturbance rejection rate calculation. The system eliminates the problem of singular point in the traditional disturbance rejection rate testing method, and enables that the disturbance rejection rate test is more accurate and a testing system is closer to the practical combat mode of the missile.

The invention discloses a semi-physical real-time simulation system of an airplane reverse thrust hydraulic unit. A closed loop testing system mainly comprises a computer, a programmable logic controller (PLC) hardware platform, an input device, and a software simulation device arranged in the computer; submodels of a hydraulic system are built by utilizing a hydrokinetics and electronic control theory, and then each simulation submodel forms the software simulation device; the PLC hardware platform performs parameter control and logic control to the software simulation device according to a state signal of the input device, and the output quantity of the software simulation device is shown in the computer by a digital and cartoon mode and also used as a feedback signal to be fed back to the PLC hardware platform through a communication interface. The invention can test and analyze various parameters of the airplane reverse thrust hydraulic unit without preparing the hydraulic unit, thereby greatly shortening the developing and analyzing periods of the reverse thrust hydraulic unit, improving the design quality and reducing the test expense.

The invention belongs to the technical field of full automatic detection of power equipment and particularly relates to a system for testing a power quality monitoring device and a testing method of the system. The system comprises a detecting host, a standard source and the power quality monitoring device. The detecting host is connected with the stand source through a GBIP bus in a communicating mode. The standard source is electrically connected with the power quality monitoring device through a test signal line. The power quality monitoring device and the detecting host form a closed loop communication control system through the Ethernet. According to the system and the testing method of the system, the accuracy of power quality indexes, a data model and communication protocols can be tested, the automatic system detection and fault recognition alarm functions of standard source overload judgment, power quality monitoring device wiring correctness, closed loop testing environment integrity and the like can be achieved, the intelligence and the automation degree of testing the power quality monitoring device are improved, and the work benefits of testing the power quality monitoring device are increased.

The invention relates to an intelligent transformer station relay protection closed loop test system. The intelligent transformer station relay protection closed loop test system comprises a control system, and a graphical interface and interface board cards which are connected with the control system, wherein the control system comprises a processor, and a memory and an FPGA module which are connected with the processor, the processor and the graphical interface realize communication through the Ethernet, the FPGA module and the interface board cards are connected to realize high-speed data transmission with various types of the interface board cards and capacity expansion of the interface board cards, the graphical interface controls and monitors the whole test process, records feedback information and carries out arrangement and generates corresponding test reports, and the interface board cards are used for sending and receiving messages. The intelligent transformer station relay protection closed loop test system provides a test environment and a closed loop test method for a relay protection test for an intelligent transformer station; a test object and a test scale of the system can be randomly adjusted according to practical conditions; when detected equipment increases, and a simulation system in the prior art can not satisfy the test scale, capacity expansion can be realized by increasing hardware board cards.

The invention discloses a closed loop test method and a system of a ground-electronic-unit lineside electronic unit (LEU). A real LEU and analog devices are combined into the close loop test system to test functions of the LEU. The test method includes the following steps: firstly, original messages (variable) are transmitted to the LEU through an S port by using an analog device (a train control center), and the LEU conducts data programming language (DBPL) encoding to the messages after receiving the messages, secondly, the messages are transmitted to the analog device (an active transponder) through a C port, at last the analog device (the active transponder) decodes received DBPL codes and compares the DBPL codes with the original messages. Therefore, the purpose that closed-loop test functions of the LEU is achieved, and thus a function test of transparent message transmission of the LEU is realized, and normal working condition of the LEU is guaranteed.

The invention discloses an in-the-loop simulation test system for an electronic parking brake system, which comprises a computer, a data acquisition card, a high-speed CAN card, a hardware interface circuit, a pressure sensor, an electronic parking brake system controller and an electronic parking brake actuating mechanism. Various kinds of information are input by the computer, test software simulates actual automotive parameters according to the input parameters, the information is sent to the electronic parking system controller through the high-speed CAN card and the data acquisition card, the electronic parking brake system controller controls the actions of the actuating mechanism, an indicator lamp and an alarm and feeds the actions back to the computer through an actuating mechanism test system and the data acquisition card, and thus, a closed-loop test system is formed. The in-the-loop simulation test system for the electronic parking brake system has the advantages that: the analog simulation efficiency is high; the adjustment period of the EPB operation environment is short, simple and low in cost; the program parameters can be changed at any time according to the different vehicle models; and the application range is wide; and the development cycle is short and the unnecessary resource waste is reduced.

The embodiment of the invention discloses an intelligent driving vehicle in-loop test method and a test system. The method includes the following steps that: a test server adjusts test scenario information in real time according to the received vehicle state information; the vehicle state information is collected by a dynamometer module in real time and sent to the test server; the dynamometer module generates a simulated road environment corresponding to the adjusted test scenario information, so that a tested vehicle runs in the simulated road environment according to the adjusted test scenario information; and the test server determines the performance of the tested vehicle according to the vehicle running parameters, wherein the vehicle running parameters are determined by each piece of vehicle state information and the test scenario information within the test period. According to the technical scheme provided by the embodiment of the invention, the test scenario information, thestate information of the tested vehicle and the simulated road environment can be correlated in real time, the in-loop full-scenario dynamic real-time closed-loop test of the vehicle can be realized,the in-loop test scenario is consistent with an actual road environment, and thus the test accuracy is improved.

The invention provides a satellite attitude orbit control software digital closed-loop test system and a method. The system comprises an interface simulation end which is connected with an iSystem system, a remote measurement remote control end and a dynamics model end through a network interface and is used for carrying out interface simulation for carrying out data transmission, the iSystem system used for operating the attitude orbit control software, monitoring an operation state and collecting the data of an external interface, the remote measurement remote control end used for receiving an inputted remote control instruction, sending the remote control instruction to the attitude orbit control software and receiving and processing the remote measurement result data, and the dynamics model end used for receiving the control information outputted by the attitude orbit control software, accomplishing calculation of a satellite peripheral attitude orbit model and sending the data of an input part to the attitude orbit control software. According to the system, the interface simulation end forms the digital simulation operation environment and a flexible customization external interface and interacts with the peripheral dynamics model, and thereby white box test content effects can be realized through a black box test method.

The invention relates to a rapid self-checking system and method of a satellite comprehensive testing system. The rapid self-checking system of the satellite comprehensive testing system comprises a comprehensive testing system, a satellite simulator, a local area network, a star earth wired electric cable, a general control end and a testing server, wherein the comprehensive testing system charges and supplies power for the satellite simulator through the star earth wired electric cable, controls in a wired mode and measures the state quantity and simulation quantity; the satellite simulator simulates the satellite load, the wired control and the tested objects of the comprehensive testing system; the local area network is a medium and a carrier of a data communication network; the star earth wired electric cable is a medium and a carrier for checking the power supply, charging, wired control and measurement function of the comprehensive testing system by the satellite simulator; the general control end sends a network control order step by step to the satellite comprehensive testing system and the satellite simulator, receives the order response return, performs automatic closed loop judgment, and completes the self-checking flow; and the testing server distributes, processes, stores and afterwards retrieves and analyses various types of control data and testing data. According to the invention, the network communication function is realized, and an automatic closed loop testing technology is adopted for the general control end, thus the self-checking flow is executed automatically and the self-checking result is given.

The invention relates to a fuel cell semi-physical simulation testing system based on VC and a building method. The system comprises an industrial control computer, a 16-path analog-to-digital (A/D) collecting card, a 16-path digital-to-analogy (D/A) collecting card and a 32-path digital I/O board. A VC software development model is used for replacing dynamic operation conditions of a practical air supply system, a hydrogen supply system, a cooling water system and modules of a fuel cell stack. By means of the A/D collecting card, the D/A collecting card and the digital I/O board, relation between a fuel cell stack controller and a simulation model is built, and a whole fuel cell testing system is simulated. Model input and output parameters are transmitted to the fuel cell controller through the A/D collecting card, the D/A collecting card and digital I/O board, an actual controller, various signal conversion boards and the simulation model used for replacing a true fuel cell form a closed loop testing system.

The invention provides a system and method for testing a wind farm power control strategy. A wind farm power control strategy making module of the system comprises a network data receiving/transmitting module, a data analyzing module, a data-caching module, a data fault tolerance module, an active/reactive control module and a real-time data interaction module, wherein the network data receiving/transmitting module, the data analyzing module, the data-caching module, the data fault tolerance module, the active/reactive control module and the real-time data interaction module are connected in sequence. The output end of the data fault tolerance module is connected with the input end of the real-time data interaction module. Information interface is conducted between the wind farm power control strategy making module and a wind farm grid analog simulation module or an actual grid interface module through the network data receiving/transmitting module. According to the system and method for testing the wind farm power control strategy, wind farm operation information is received in real time, set power values of wind farm units and reactive-load compensation devices are sent to the corresponding wind turbine generator units and the corresponding reactive-load compensation devices in a wind farm at regular intervals according to the different power control strategies, finally a closed loop for testing the control performance of a wind farm active/reactive control system is formed, and the success rate of on-site putting into operation is improved.