11 results about "Fault Simulator" patented technology

The application discloses a kind of fault arc experimental platform and fault arc detection method, the experimental platform includes power supply, electrical fault simulator, circuit breaker, fault arc generation module and current acquisition analysis module, power supply is connected with electrical fault simulator, electrical fault simulator, circuit breaker and fault arc generation module are connected in series between, current acquisition analysis module is arranged between circuit breaker and fault arc generation module, fault arc generation module includes fault arc generation device and experimental load, fault arc generation device and experimental load are connected in series or in parallel connection.The experimental platform of fault arc of the application can be realized experimental load and the function of fault arc device series connection or parallel connection, and different types of load combination can be used for load replacement, ensure the reliability of fault arc detection, can obtain the current data of multiple fault arcs, provide sufficient and effective data support for fault arc detection method.

Method for checking the error detection of a control unit (14) of an internal combustion engine in the event of a malfunction of a connected broadband lambda probe (10), wherein the check is carried out using an error simulator (12) arranged between the broadband lambda probe (10) and the control unit (14), and wherein the error simulator (12) specifically modifies electrical signals exchanged between the broadband lambda probe (10) and the control unit (14) in order to simulate errors of the broadband lambda probe (10), characterized in that a Nernst voltage UN0 mess (11) of the broadband lambda probe (10) and a pump current IP MSG (16) of the control unit (14), that the fault simulator (12) of the broadband lambda probe (10) a pump current IP Sonde (15) and the control unit (14) a Nerst voltage UN0 stell(13) and that the fault simulator (12) for simulating faults of the broadband lambda probe (10) supplies the Nernst voltage UN0 supplied to the control unit (14) stell (13) compared to the Nernst voltage UN0 output by the broadband lambda sensor (10) mess (11) is changed, whereby the pump current IP output to the broadband lambda probe (10) Sonde (15) the pump current IP output by the motor control (14) MSG (16) or that the pump current IP output to the broadband lambda probe (10) Sonde (15) by the fault simulator (12) based on the Nernst voltage UN0 output by the broadband lambda probe (10) mess (11) is specified or that the pump current IP output to the broadband lambda probe (10) Sonde (15) by the fault simulator (12) depending on the pump current IP output by the control unit (14) MSG (16), wherein the pump current IP is dependent on the pump current MSG(16) pump current IP specified by the fault simulator (12) and output to the broadband lambda probe (10) Sonde (15) larger or smaller and / or delayed in time compared to the pump current IP MSG (16) is specified.

The utility model discloses a self-adaptive fault simulator for an engine throttle valve. Comprising a fuse F1, a diode D1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first potentiometer R7, a second potentiometer R8, a microcontroller MCU, a first MOS tube Q1, a second MOS tube Q2, a first socket J1, a second socket J2, a third socket J3 and a fourth socket J4. A fifth socket J5 and a sixth socket J6. Compared with the prior art, software threshold adjustment and a special fault throttle valve are abandoned, the simulator is adopted to be connected with the ECM and the throttle valve signal line in series, the voltage / time deviation value is set through the potentiometer, an original throttle valve position signal is overlaid in real time and then input into the ECM, and throttle valve self-adaptive deviation signals are controlled according to needs.

The utility model relates to a low-voltage transformer area mutual inductor user simulation training device. The device comprises a program control virtual load power supply, a current booster, a current open circuit protection unit and a fault simulator which are installed in a simulation device. The isolation disconnecting link, the simulation mutual inductor, the simulation junction box and the three-phase four-wire mutual inductor simulation electric energy meter are installed on an external panel of the simulation device. The simulation junction box is connected with the fault simulator; one path of current signal source in the program control virtual load power supply passes through the current open circuit protection unit and then is connected to the input end of a secondary wiring terminal of the simulation mutual inductor; the output end of the secondary wiring terminal is connected to the three-phase four-wire mutual inductor simulation electric energy meter through the simulation wiring box and the fault simulator to form a secondary metering loop.

The present application relates to the technical field of equipment intelligent operation and maintenance, and particularly relates to a device fault description and maintenance measure semantic matching method, comprising the following steps: S1, inputting fault text and maintenance corpus into a same frozen encoder to generate a latent vector, and outputting a drift key vector after linear drift of the fault vector through a light matrix; S2, taking the drift key vector as a query to retrieve k candidate measures and aftereffects, splicing the candidate measures and aftereffects into a segment and applying a mask to generate a masked measure list; S3, inputting each masked measure into a frozen simulator to generate a predicted state, calculating a complementary overlap degree of the predicted state with an original fault, and retaining those less than a threshold value. Through latent space semantic alignment, dynamic causal mask driven by working conditions, and complementary overlap verification based on a fault simulator, the present application realizes high correlation, low conflict and explainable consistent semantic matching between unstructured fault descriptions and maintenance measures.

This invention discloses an aviation power supply system fault simulation device and its control method, comprising: an AC aviation power module, an aviation DC power module, a multiplexer, a poor contact and overload fault simulator, an RLC load, and a signal collector; the poor contact and overload fault simulator is used to simulate the generation of series arcs of poor contact faults in aviation AC power supply and aviation DC power supply under different RLC load conditions and to collect arc images and arc temperatures, as well as to collect wire images and temperatures during overload faults; the signal collector is used to collect the voltage values ​​between the neutral and live wires, the voltage values ​​between the positive and negative terminals, the current flowing through the neutral or negative terminal, and the current flowing through the live or positive terminal between the multiplexer and the poor contact and overload fault simulator after the series arc is generated; the RLC load is used to simulate the generation of different types of loads, including resistive loads, inductive loads, and capacitive loads.

The invention relates to the technical field of angle steel tower construction, in particular to an angle steel tower unmanned construction operation method and system based on robot control. Training to obtain an equipment limited simulator; obtaining a target environment parameter of the target construction environment, inputting the target environment parameter into the equipment limited simulator to obtain an equipment limited degree, and generating a recommended construction parameter range based on the equipment limited degree; configuring preset parameters of the target equipment, acquiring ideal operation data of the equipment under the target environment parameters according to the preset parameters and the equipment limitation degree, and monitoring actual measurement data of the equipment in real time to serve as actual operation data of the equipment; and when the deviation between the ideal operation data of the equipment and the actual operation data of the equipment is greater than a preset threshold value, inputting the ideal operation data of the equipment and the actual operation data of the equipment into a pre-trained equipment fault simulator, and outputting a fault judgment result. The precision, safety and efficiency of unmanned construction of the angle steel tower are improved.

The invention belongs to the field of aviation airborne system safety modeling and analysis, and particularly relates to a power generation system safety evaluation method based on a SysML correction model. Comprising the following steps: generating a SysML model; establishing a functional logic model by reading the SysML model of the system; adding a failure state on the basis of the function logic model to carry out fault analysis and establish a fault propagation model; establishing a mathematical model, a system architecture, a fault model, a transient / steady-state fault monitoring model and a fault simulator of the power generation system, forming a fault propagation relation analysis model of the power generation system, and judging a minimum cut set of a failure state according to the fault propagation relation analysis model; correcting the fault propagation model through the minimum cut set of the failure state and the influence of the fault on the local part, the higher level, the adjacent level and the system output; and performing model-based reliability and safety design analysis according to the corrected fault propagation model, generating a fault tree model of the power generation system, and performing power generation system safety assessment according to the fault tree model.

Techniques discussed herein relate to enabling a hypervisor to self-recover. In particular, a watchdog daemon may be executed at the hypervisor to perform periodic write disk checks of the boot volume associated with the hypervisor. Suppose an attempt to write to disk fails (e.g., an Error Input / Output (EIO) or Error Read Only File System (EROFS) return code is received. In that case, the daemon may determine that the boot volume is in read-only mode, post metrics to one or more logging services to indicate that the daemon has detected a read-only boot volume and reboot the respective hypervisor.

The invention discloses an aviation power supply system fault simulation device and a control method thereof. The aviation power supply system fault simulation device comprises an AC aviation power supply module, an aviation DC power supply module, a multipath change-over switch, a poor contact and overload fault simulator, an RLC load and a signal collector. The poor contact and overload fault simulator is used for simulating series arcs generating poor contact faults of aviation power supply alternating current power supply and aviation power supply direct current power supply under different RLC load conditions, collecting arc images and arc temperatures, and collecting lead images and temperatures during overload faults; the signal collector is used for collecting a voltage value between a zero line and a live line between the multipath change-over switch and the poor contact and overload fault simulator, a voltage value between a positive electrode and a negative electrode, a current flowing through the zero line or the negative electrode, and a current flowing through the live line or the positive electrode after the series arc is generated; and the RLC load is used for simulating and generating different types of loads, including a resistive load, an inductive load and a capacitive load.

The utility model discloses a transformer winding deformation fault simulator, and belongs to the field of winding deformation fault simulation. The problem that an existing simulator cannot restore real winding characteristics and cannot achieve three-phase collaborative testing is solved. The simulator comprises an analog circuit module and a switch control module. The analog circuit module is constructed based on a transformer winding equivalent circuit and comprises an input end, an output end, inductor assemblies connected in series, ground capacitor assemblies connected in parallel and inter-cake capacitor assemblies. The switch control module comprises a plurality of single-pole double-throw switches, and movable contacts of the single-pole double-throw switches are respectively connected to adjusting nodes of the inductor assembly, the ground capacitor assembly and the inter-cake capacitor assembly; the single-pole double-throw switch is used for switching the contact to change the capacitance or inductance value of the access circuit so as to simulate the normal state or the deformation fault state of the transformer winding; the output interface of the analog circuit module is configured to be connected with a frequency response tester and used for generating a frequency response curve. The method is mainly used in the power system safety field.