The invention relates to a communication equipment hardware host testing technology, and discloses a communication equipment hardware host testing system, which solves the problems of low testing efficiency, incompleteness, low compatibility and high testing cost caused by a detection way in the prior art. The system comprises a testing platform and tested equipment, wherein the testing platform is run on a personal computer (PC), and is used for performing monitoring management on the whole testing process, configuring parameters of the tested equipment and processing testing results; an agent module and test driving modules corresponding to different hardware units to be tested are embedded into the tested equipment; the agent module is used for managing the hardware units to be tested, and resolving and transmitting testing commands or uploading the testing results; and the driving modules are used for receiving the testing commands transmitted by the agent module, performing specific tests on test messages constructed by a central processing unit (CPU) of the tested equipment, and returning the testing results. The invention also discloses a communication equipment hardware host testing method. The system and the method are applied to the equipment batch self-test of communication equipment manufacturers.

Communication equipment hardware host testing system and testing method

The invention discloses a low level scanning filed high and strong radiation field testing system. The system comprises a control and data processing module, a high and strong radiation field simulation signal source, a low frequency field strong radiation array, and a multi-channel receiving device. The high and strong radiation field simulation signal source is connected with the control and data processing module through a circuit and used for outputting high and strong radiation field simulation signals. The low frequency field strong radiation array is respectively connected with the control and data processing module and the high and strong radiation field simulation signal source through a circuit, and used for receiving the high and strong radiation field simulation signals output by the high and strong radiation field simulation source and generating field intensities which are evenly distributed in an area to be tested. The multi-channel receiving device is connected with the control and data processing module through a circuit and used for detecting the field intensities in the area to be tested and transmitting the field intensities to the control and data processing module. By means of the low level scanning filed high and strong radiation field testing system, complete-machine-level low level scanning field testing can be conducted on targets like spacecrafts and aircrafts, parameters of the protective properties, like the shielding property, of the spacecrafts and the aircrafts under the HIRF condition can be obtained, and the system can also be used in protective property verification tests of automobiles, rail transit and the like under high electromagnetic environments.

Low level scanning filed high and strong radiation field testing system and low level scanning filed high and strong radiation field testing method

The invention provides a low-level scanning current testing system for an aircraft whole body. The low-level scanning current testing system for an entire aircraft body can generate low-level signals with a set frequency to simulate signals in a radiation field, and irradiates the to-be-tested aircraft though four groups of emitting antennas which are arranged on the ground with the aircraft as the center and according to adjacent 90 degree positional angles; a multichannel reception device sends detected multipath induced-current in internal cables of the to-be-tested aircraft to a frequency spectrum analyzer to analyze; the field intensity of a simulation high-strength radiation field is subjected to calibration; the whole testing system is controlled and tested data are processed by a control and data processing computer; so that an external radiation field-internal cable induced-current transfer function which is required an aircraft whole body high-strength radiation field protection authentication test is obtained. The low-level scanning current testing system for an aircraft whole body of the invention can carry out whole aircraft body low-level scanning current tests aiming at aircrafts, etc., obtain aircraft protection performance parameters under high-strength radiation field condition, and provided basis for aircraft high-strength radiation field protection design and verification.

A low-level scanning current testing system for an aircraft whole body

The invention discloses an automatic test method for radiation sensitivity. Based on automatic test for radiation sensitivity, a tested product and a product testing instrument interface image are acquired and analyzed through a first camera and a newly mounted second camera. According to the automatic test method, image processing technology is introduced into an electromagnetic compatibility testing field; in the radiation sensitivity testing process, video monitoring is performed on the tested product and a product testing instrument, and an image comparison method is adopted for automatically determining whether sensitive phenomenon of the tested product occurs. Because video monitoring is suitable for a plurality of tested products and product testing instruments, the automatic testing method has high universality. The automatic test method has advantages of: improving automatic degree in radiation sensitivity test, reducing labor intensity and simultaneously reducing uncertainty caused by human factors.

Automatic test method for radiation sensitivity

The invention provides a PCBA automatic test system. The system comprises a system initialization module which is configured for initializing each software module and hardware module; a script compiling module which is configured for calling and compiling corresponding test scripts for different target PCBA; an automatic test module which is configured for performing operation testing on the compiled scripts of the script compiling module step by step; a data acquisition module which is configured for providing a reading interface for measurement data and a processing interface for various data; a database module which is configured for storing and managing target PCBA configuration files, the corresponding test reference values of the target PCBA and the automatic test report; and a test and control link board control module which is configured for controlling the switch matrix in the test and control link board so as to control different loop matches to connect various measurement instruments and the target PCBA to realize physical quantity measurement or supply. The invention also provides a PCBA automatic test method and device.

PCBA automatic test method, device and system

The invention discloses a bus technology-based universal electromagnetic susceptibility testing device and a bus technology-based universal electromagnetic susceptibility testing method. The testing device comprises a main control computer, a program control testing instrument, a remote control computer and a testing software system. The testing method comprises the following steps of: 1, initializing the universal electromagnetic susceptibility testing device; 2, setting parameters aiming at the electromagnetic susceptibility test by a user; 3, starting an upper level test platform program to start the test; and 4, testing a function generation module-instantiated test function, and testing the electromagnetic susceptibility. The invention overcomes the defect of redesign of the conventional electromagnetic susceptibility testing system when new equipment, the type of a testing bus or the connection mode of the testing instrument needs to be replaced or a testing algorithm needs to be updated, realizes the universal electromagnetic susceptibility testing system with convenient function expansion, addition of node equipment and update of the testing algorithm, and reduces the cost and the energy for system expansion and maintenance.

Bus technology-based universal electromagnetic susceptibility testing device and method

The invention provides a test device for testing the radiation sensitivity of an electric field and a test method thereof. The test device comprises a main control computer, a PCI (Personal Communication Interface)-GPIB (General Purpose Interface Bus) control card, a signal generator, a switch array, a power amplifier A, a power amplifier B, a coupler A, a coupler B, a power meter, an antenna A,an antenna B, a field intensity probe and a field intensity monitor. The test device solves the problem of serious attenuation of radio-frequency signals of a 10kHZ-40GHz frequency range signal generator during remote transmission based on different transmission characteristics of radio frequency signals at high and low frequency bands. When equipment under test abnormally works during the automatic control test process, the test method can be immediately switched to the radiation sensitivity manual test of the electric field; and after the normality is restored, the manual test is switched back to the automatic test, so as to continuously test till the whole test process is finished. The test device is convenient and flexible to operate and has high safety and reliability.

Test device for testing radiosensitivity of electric field and test method thereof

In this paper, a frame of guided weapon with network has been proposed, the pitching loop, yawing loop and rolling loop share the network resource by time-division. To maximum the overall performance of the three control loops, an intelligent feedback scheduler is designed to allocate available network resource dynamically according to the limited network bandwidth and variable workload. The scheduler includes a dynamic feedback scheduling module for sampling period adjustment and a fuzzy logic feedback scheduling module for priority modification. In the section of sampling period adjust, the bounds of sampling period are figured out by validating the feasible solution of a set of linear matrix inequalities (LMIs). In the end of the paper, the simulation of the guided weapon networked control system is given to illustrate the validity of the designed method under both underloaded and overloaded network condition.

Intelligent scheduler design for networked control systems of guided weapon

A method for fault detection of networked control systems with network-induced delay is studied in this paper. In the method, a discrete-time model is used to describe the dynamic behavior of the networked control systems, the network-induced delay is supposed to be smaller than sampling period. First, a known structure matrix of network-induced delay is obtained by eigendecomposition, and then residual generator is constructed by introducing a parity matrix. The design of the parity matrix can be formulated as optimization problem with constrains of LMIs. Simulation results are also given to illustrate effectiveness of the proposed method.

An approach to fault detection of NCS with unknown network-induced delay

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Papers

Bus technology-based universal electromagnetic susceptibility testing device and method

Test device for testing radiosensitivity of electric field and test method thereof

Intelligent scheduler design for networked control systems of guided weapon

An approach to fault detection of NCS with unknown network-induced delay