Device for protecting the computer system from intermittent power failure
(57) Abstract:The invention relates to computer technology, primarily to stationary personal computers (PC). Known PC (domestic EC type-1841, EU-1849, foreign type RS), containing the network rectifier, stable Converter secondary voltages, CPU and external devices. When creating computer networks and the decision of the responsible task of the PC is used in conjunction with expensive stand-alone device, the efficiency of which is low. Prompted to enter directly into the PC component battery, battery, Converter DC voltage and sensor failure network. This greatly reduces the number of stages of energy conversion, respectively, increases efficiency, dramatically reduced the size and cost of the protection device. 2 Il. The invention relates to computing and can be used to protect personal computers from power failures.The technical result is to prevent loss of information when failures and network failures.In Fig. 1 shows a diagram of the device of Fig. 2 is a diagram of a device with an additional step-up Converter pose (secondary voltages 4), the Central processor 5 input 6 interrupt, the peripheral device 7, the sensor 8 failure of the network, battery 9, a node 10 charge and the switch 11.The device operates as follows.In the normal operating mode when the mains voltage is within the acceptable range, the separator diode 11 is closed due to the fact that the constant output voltage of the rectifier 1 is greater than the voltage of the battery 9. The power regulator 3 and 7 is rectified mains voltage.When failure or interruption of the mains voltage 2 output voltage of the rectifier 1 is reduced, opens the switch 11, and the power regulator 3 and the device 7 is supplied from the battery. Simultaneously, the sensor 8 sends a signal failure of the network to the input 6 interrupt processor 5. On this signal the PC can perform some additional operations (for example, an audible alarm switch to battery power, automatic overwriting information in a magnetic external device, etc). The node 10 charge is automatically activated when the voltage decrease of the battery 9 to the boundary values.The device in Fig. 1 has a drawback. Usually when transformerless wypr the e battery required batteries 9 voltage 270 - 290, i.e., a serial connection of more than 220 standard battery voltage 1,2 Century Such batteries is feasible, but the roads and unreliable.Therefore, in most cases, when transformerless straightening network more convenient scheme of Fig. 2, in which in order to eliminate this drawback introduced increasing Converter 12, an input connected to the output of the battery, and the output via an isolating diode 11 with the power input stabilizer 3 and devices 7. In this case, you can use the standard battery voltage 12-24 V, more reliable and less expensive. To prevent battery discharge at a nominal voltage Converter 12 is switched on only when its control input signal from the sensor 8 failure of the network connection between the output of the sensor 8 and the controlling input of the Converter is optional, but it improves battery usage). The node 10 charge for simplification connected to one of the output voltages 4 (this became possible due to the use of low-voltage battery).As far as we know, a stationary PC, protected from failure, and power failure are not available neither in Russia nor abroad. Indirectly, this svidetelstvo sequence of energy conversion and reduced the number of stages of conversion in comparison with the known PC, fed using Autonomous redundant systems.The benefits of the proposal. Software PC continuous flow of energy without any interruption provide UPS systems. This is achieved due to the fact that the switching time of the diode 11 is measured in fractions of microseconds and several orders of magnitude less than the delay power failure due to the capacitor of the rectifier 1 and the stabilizer 3.A significant simplification. UPS system-PC contains five or six steps of energy conversion (net 50 Hz - DC voltage - sinusoidal output voltage UPS - DC voltage 310 To - AC voltage Converter 50 - 500 kHz - rectified stabilized voltage).Increase efficiency. In the prototype energy network and battery is lost at all stages of transformation, especially when generating a sinusoidal output voltage of the UPS. So, for THE BPS-113 efficiency = 60%, and taking into account the efficiency of the power supply PC shared channel coefficient less than 50%. For SSG 400 from a company catalogue efficiency = 75%. In our case, the efficiency for the device of Fig. 1 is determined only by the losses of the diode 11 and the charger 10 and equal to 95-98%, and Fig. 2 - more than 90%.Sharply uluchshenie mass PC with a 200-watt power supply for the circuit of Fig. 2 does not exceed 2-3 kg, compared with the prototype under warranty 15 minutes of operation after power failure. Necessary to continue the work of the external device or must have their own system of protection against power failure, or as provided in the diagrams of Fig. 1 and 2, must be powered from redundant output voltage of the rectifier 1. DEVICE FOR protecting the computer system FROM INTERMITTENT POWER FAILURE, containing the rectifier voltage, a voltage regulator whose outputs are the outputs of the device to connect to the power input of the Central processor computing system, and the inputs and outputs of the voltage rectifier are connected to terminals of the AC voltage and the input voltage, respectively, characterized in that it further comprises a battery, a node of the charge, the Converter DC voltage, switch and sensor failure network, and terminals of the battery are connected to the outputs of the circuit of charge and through the Converter - input switch, a control input connected to the output of the sensor failure network and access devices to connect to the interrupt input of the CPU in the outputs of the switch are connected to the outputs of the rectifier voltage and are the outputs of the device to connect to the power input of the peripheral devices of computer system.
FIELD: measuring equipment.
SUBSTANCE: in turns, on each device, included in diagnosed block, feeding voltage amplitude is decreased in steps from nominal value Enom to threshold value Ethri with step ΔEn, while on each step of decreasing of amplitude of feeding voltage of device pseudo-random multi-digit code sets are sent to inputs of diagnosed block, consisting of logical zeroes and ones with even possibility of appearance of logical zero or logical one in each digit, received logic levels are recorded on outputs of diagnosed digital block and compared to standard levels, and when error frequency Fc appears, voltage value Ethri is recorded (functioning threshold) for each device and its functioning area is calculated on basis of feeding voltage ΔEpi. Defective (potentially malfunctioning) device is detected on basis of lowest value in functioning area ΔEpi, which is selected on basis of comparison of functioning areas of all devices, included in diagnosed digital block.
EFFECT: higher precision, higher efficiency.
FIELD: technical systems diagnostics.
SUBSTANCE: method includes forming an equivalent standard model of connections, gaps of which include standard models of composition parts of current type of products, combinations of input signals are set in certain order, parameters of response on outputs of standard model of diagnosed product are determined as well as in characteristic intermediate points between standard models of composition parts of product, values of response parameters together with parameters of test input signals are recorded in database, after which process is repeated until fully searching all states of standard model.
EFFECT: possible forming of tests in absence of standard samples of control subject for different classes of products in different areas.
FIELD: information technologies.
SUBSTANCE: microcomputer (ASIC) comprises multiple integral circuits (IC), which are connected to each other with interfaces that are synchronous to data sources. At first test data is input into trigger for data transfer (F1) and trigger for transfer of clock pulse (F2) into IC on the side of data transfer. Then circuit (11) of phase locking generates clock signal, in response to which the first and second triggers send test data and clock pulse. Triggers (F3, F4) for reception of IC data on the side of data reception, test data is registered, which come from the first trigger (F1) in compliance with clock pulse, which comes from trigger (F2).
EFFECT: provision of testing at working frequency at the level of circuit boards without application of system level test, and assessment of data sent along each transfer channel.
12 cl, 21 dwg
FIELD: physics; communications.
SUBSTANCE: invention relates to simulation and can be used in designing radio-electronic, engineering systems for evaluating operational characteristics. The outcome is achieved by measuring performance indices of a real communication network, simulating functioning processes of the simulated communication network and comparing the values.
EFFECT: possibility of simulating movement of communication network elements (nodes and communication devices) and subscribers (users) of the communication network; simulation of features of physical and geographical conditions of the region where the communication network is operating and where subscribers (users) are located; simulation network topology changes, change in communication channel (line) capacity; as well as increased simulation adequacy taking into account functioning processes of a real communication network.
FIELD: physics, computer engineering.
SUBSTANCE: invention relates to micro- and nanotechnology and can be used when controlling and diagnosing microprocessor systems. The automated device for testing microprocessor systems contains the following: a testing module (1), units for permanent (2) and on-line storage of data, a unit for processing results and information (5), a control unit (4) which is a switch, a setting device (8), first (6) and second (7) interfaces. The units for permanent (2) and on-line (3) storage of data and the control unit (4) can be made as part of the tested object.
EFFECT: broader functional capabilities of the automated device due to possibility of detecting undocumented units and commands in a microprocessor system.
FIELD: information technology.
SUBSTANCE: in the method of creating control-diagnostic tests before creating the tests through digital shooting in optical range, pictures of the non-component side of the article with clear identification of types of radio components thereon and their position is obtained. For each combination of input test electrical signals, simultaneously with determination of standard values of parametres of electrical response signals from outputs of a standard sample of the article of the given type which is known to be fault-free, standard digital infrared images of the standard sample of the article of the given type are obtained through digital infrared video shooting, where the said infrared images display the differences between thermal conditions of the radio components in places where they are located on the fault-free standard sample of the article of the given type. The obtained data are entered into the computer data base of the control-diagnostic installation and are used for subsequent monitoring of correct operation and diagnosing faults in articles of the given type.
EFFECT: detection of faulty radio components without violating integrity of moisture-proof coating of the article, high efficiency and reliability of diagnosis.
5 cl, 2 dwg
FIELD: information technologies.
SUBSTANCE: automated repair bench comprises a computer with software and hardware, which includes 10 input-output devices, an analogue generator, a logical analyser, a digital oscillograph, power supply units, an internal local bus, a unit of external slots for connection of a tested device, and also an intellectual controller, comprising an inbuilt 32-digit processor on a crystal (NIOS-processor), connected to the computer along a USB bus and with a main memory of a fast memory DDR type, and also with a bus arbiter connected to an address port and an input-output port of the intellectual controller, connected with the internal local bus, at the same time all internal devices of hardware are controlled by the 32-digit processor on a crystal (NIOS-processor) along the internal local bus. (n+1) relay control units are connected to the internal local bus, and each of them comprises 64 input-output lines, ensuring operation with radio-electronic equipment, comprising electromagnet relays. Each relay control unit comprises (n+1) input-output devices, every of which comprises 64 input-output lines.
EFFECT: higher efficiency of testing digital-to-analogue devices and devices that comprise relays.
3 cl, 1 dwg
SUBSTANCE: generation of control and diagnostic tests is carried out on the basis of mathematical models of control objects built on circuits of electric principal control objects, mathematical models of electric radio elements (ERE) and parameters of electric signals for passport modes of ERE operation, and generation of reference thermal portraits of radioelectronic equipment (REE) items - a control object - is carried out by means of synthesis on the basis of individual thermal portraits of ERE of appropriate types and a drawing of the control object overview.
EFFECT: provision of the possibility to generate diagnostic tests for thermal imaging diagnostics of radio-electronic equipment faults when there are no reference samples of REE available.
FIELD: information technology.
SUBSTANCE: number of dynamic modules of a controlled system is determined, the reaction of a good system is recorded at an interval at control points and integral estimates of output signals of the system are determined. System signals are transmitted to the first inputs of multiplier units; an arithmetic mean value of moduli of signal time derivatives is transmitted to second inputs of the multiplier units; output signals of the multiplier units are transmitted to inputs of integration units; integration is completed at a certain moment in time; output signal estimates obtained from integration are recorded; simultaneously, integral estimates of signals of models are determined for each of the control points, obtained as a result of test deviations of parameters of each of the modules, for which a corresponding test deviation of parameters is introduced into each model for the dynamic system module. Deviations of integral estimates of signals of the model, obtained as a result of test deviations of parameters of corresponding modules, are determined. Standardised values of deviations of integral estimates of signals of the model are determined. Standardised values of deviations of integral estimates of signals are determined. Diagnostic features are determined and a faulty module is determined from the minimum value of the diagnostic feature.
EFFECT: increased noise-immunity of diagnosing continuous automatic control systems.
FIELD: information technology.
SUBSTANCE: disclosed is a method for preliminary assessment of quality of diagnostic tests, consisting in that, based on the description of internal parts of the diagnosed article, an equivalent standard model of connections is formed; for the obtained standard model of the diagnosed article, combinations of input test signals are formed; for each combination of input test signals, parameters of combinations of output signals are determined, wherein at the inputs of the obtained standard model of the diagnosed article, corresponding combinations of input signals are given in a corresponding sequence given in the assessed diagnostic test; for each combination of given input signals, except the first, parameters of combinations of response signals at the outputs of the standard model of the diagnosed article and in characteristic intermediate points between standard models of component parts of the article are determined and, by comparing response signals obtained for the previous combination of given input signals, change in values of response signals is determined; preliminary efficiency of the diagnostic test is calculated; a preliminary decision on sufficient quality of the assessed diagnostic test is made, as a result of which the assessed diagnostic test is sent for refinement or for experimental checking.
EFFECT: shorter time for diagnosing engineering systems.
5 dwg, 1 tbl