117 results about "Logic testing" patented technology

The invention belongs to the technical field of automatic control of instruments and meters, and particularly relates to a nuclear power DCS platform test device based on a simulation system and a test method thereof. The device comprises a model server which operates all the system simulation models including chemical and volume control systems; an upper computer of which the function is communication configuration and operates monitoring control frames; and a communication server which realizes data communication between field acquisition controllers and the model server, wherein the port A of the communication server is connected with a lower switch and the port B is connected with an upper switch. The model server is connected with the first port of the upper server, the upper computer is connected with the second port of the model server, and the communication server is connected with the third port of the upper switch. The field acquisition controllers 1-8 are connected with the first to eight ports of the lower switch. The problems that the conventional hardware simulation technology does not perform modeling and cannot realize simulation of the actual physical and technical process control of a power plant can be solved, and the problems that logic testing cannot realize testing according to the technical control requirements can also be solved.

The invention discloses a method, device and system for testing a web page. The method comprises the steps that the web page to be tested, the URL of the web page to be tested, page controllable elements extracted from the web page to be tested and the page logical description information of the web page to be tested are sent by a client side and received by a web page test server, and the URL and the page controllable elements of the web page to be tested are added to a page element base; the web page test server generates a graphic user interface according to the page logical description information of the web page to be tested and the page element base; an instruction for selecting the page controllable elements in the web page URL is received, the corresponding page controllable elements in the web page URL are selected from the page element base according to the instruction through the graphic user interface, and a test script is generated according to the page logical description information; the web page test server sends the generated test script and the web page to be tested to a tester for web page testing, web page logic is tested through the graphical test scheme, and the threshold of the web page logic testing is lowered.

The invention provides an automatic closed-loop testing method for a connecting-and-locking logic of a substation bay level. The automatic closed-loop testing method comprises the steps of loading a substation configuration description (SCD) model and a bay level connecting-and-locking logic role, extracting a semaphore which is related with a tested bay level connecting-and-locking logic operation and a reference that corresponds with a logical operation result; automatically generating a connecting-and-locking logic testing task sequence, and determining a testing-and-control device in a testing scene; wherein each testing task comprises a name and a description of primary equipment of the connecting-and-locking logic test, a related semaphore, a corresponding number, an index and a connecting-and-locking logic prediction result; constructing multiple scenes which supports automatic closed-loop testing of the connecting-and-locking logic, and acquiring the connecting-and-locking logical operation result in the testing scene; and evaluating the logical operation result. The automatic closed-loop testing method is suitable for in-substation local automatic closed-loop testing and remote scheduling automatic closed-loop testing, and furthermore has functions of preventing reconstruction and expansion of device which requires power-off operation, improving testing efficiency, saving time-wasting and labor-wasting working cost in manual testing and ensuring high correctness of an error locking preventing logic.

The present invention is directed to a logic testing architecture with an improved decompression engine and a method of decompressing scan chains for testing logic circuits.

The present invention is directed to a logic testing architecture with an improved decompression engine that compresses the seeds of a linear test pattern generator in a manner that is independent of the test pattern set.

The invention discloses a multifunctional embedded development tool with a USB interface and belongs to the technical field of embedded development. The multifunctional embedded development tool consists of a circuit board, the USB interface, a USB-HUB circuit, a USB to serial port circuit, a debugging and simulation circuit, a logical analysis circuit, JTAG interface, an SWD interface, a serial port interface and a logical test interface. The multifunctional embedded development tool only needs the USB interface to be connected with a computer to achieve the functions of debugging and simulation, serial port test, logical analytic test, code downloading and the like together with software of the computer, so that functional demands for debugging and simulation, testing, maintenance and the like of development of embedded software in various stages, cross use of multiple tools is not needed, accordingly, the working intensity of embedded software development testing and maintenance is reduced, and the working efficiency is improved.

The invention provides a test system and a test method for a control logic. The test system comprises a user information verification server, a standard test case management server, a test result management server and an application workstation. The application workstation comprises a user authority verification module, a standard base generating module, a model conversion module and a test engine module. The application workstation connects the user information verification server, the standard test case management server and the test result management server through a network. The test system and the test method for the control logic according to the invention can automatically generate test causes and perform a testing verification operation in a batch manner, thereby greatly reducing manual operation, making a user finish the control logic testing verification operation conveniently and quickly, reducing the number of man errors and improving testing quality and testing efficiency.

The invention relates to five-prevention logic testing method and system of a transformer substation. The method comprises the following steps of: imitating output signals of a spacer layer device relevant to five-prevention logic by a computer; inputting output signals of other spacer layer devices other than the spacer layer device to be tested relevant to the five-prevention logic to the spacer layer device to be tested, wherein five-prevention logic to be tested is prestored in the spacer layer device to be tested; comparing output signals issued by the spacer layer device to be tested according to the five-prevention logic to be tested with output signals specified by the spacer layer device to be tested according to the five-prevention logic; and dividing the five-prevention logic to be tested into accurate five-prevention logic and false five-prevention logic. The five-prevention logic testing method and system of the transformer substation can conveniently and rapidly detect the five-prevention logic of the transformer substation.

A software quality assurance tool (“IVRT”) for VoiceXML applications is described. IVRT makes speech and telephony irrelevant to the testing of VoiceXML logic. IVRT follows a machine-readable “Test Plan” to execute the logic of an application. The Plan provides the results of telephony interactions. Testing is done without live callers, and runs at computer speed. A Plan contains any number of calls, to guide the application execution through all logic paths. The tool executes the application in a live environment with respect to all non-telephony functions, particularly web interactions, to test the application's web logic. IVRT executes multiple threads, acting as simultaneous callers, to provide controlled load web logic testing. The tool summarizes Plan “coverage”. For regression testing, IVRT tests an updated application with its original Test Plan and compares the log to previous logged output. Differences indicate potential regression failures.

An integrated circuit design block includes combinational and sequential logic defining core logic of the integrated circuit design block, and boundary logic defined at an outer region of the integrated circuit design block. The integrated circuit design block also includes a control test unit that has a scan chain decoder and a boundary scan decoder. The scan chain decoder includes scan chain select circuitry for enabling the scan chain decoder during scan testing of the core logic. The scan chain select circuitry further includes a pin for disabling the scan chain decoder during testing of the boundary logic. The scan chain decoder is limited to share pins defined by the boundary scan decoder, and is both 4-pin and 5-pin IEEE 1149.1 compliant.

A scan clock generator includes a clock signal input for receiving a clock signal, a scan shift mode signal input for receiving a scan shift mode signal, and a sequence controller coupled to the clock signal input for gating a selected number of clock signal pulses at a time to generate a sequence of nonconcurrent scan clock signals at separate outputs respectively in response to a first state of the scan shift mode signal.

A simulated battery test device and method that is capable of testing a battery charging circuit and logic circuit to determine proper operation. An operational amplifier is used that can both source and sink current to simulate the operation of the battery. A battery low signal can be generated using the simulated battery test device to test a battery charging circuit and logic circuit in a battery low condition. In addition, a battery open signal can be generated to test the battery charging and logic circuit in a battery open condition. Charging currents are detected to determine if currents fall within an acceptable range.

The invention relates to an offline vehicle logic test system and test method. The system comprises a controller to be tested, a quick plug box, an external accessory, a signal collector, a switchingpower supply, a CAN module and an upper computer. The offline vehicle logic test system is practical in controller function adaptability change verification or verification of only newly added function logic, is high in integration level, high in applicability and convenient to use, and is more suitable for development requirements of various conventional controllers of medium and small companies.