42results about How to "Realize real-time judgment" patented technology

The invention provides a displacement measuring method. The displacement measuring method includes: providing a displacement measuring system, wherein the displacement measuring system comprises a laser and a data acquiring and processing unit, and laser light output by the laser is divided into an o-light component and an e-light component with phase difference; via the data acquiring and processing unit, converting a light intensity signal of o-light into a voltage signal Vo, converting a light intensity signal of e-light into a voltage signal Ve, seeking a sum of light intensity of the o-light and the e-light so as to obtain a total power tune curve Vt, wherein Vt=V0+Ve; and judging a direction: seeking difference Delta (Vt) of the signal Vt, and calculating I, wherein I=Delta (Vt) x (Vo-Ve), when the value of I is larger than 0, the direction of the displacement is judged to be the first direction, when the value of I is smaller than 0, the direction of the displacement is judged to be the second direction, and the first direction and the second direction are opposite.

The invention relates to an indoor and outdoor short circuit identification method based on a meter box monitoring terminal and an intelligent electric meter. The method comprises the following stepsof: (1) collecting the current of a main incoming line of a meter box; (2) calculating a sudden change value between adjacent sampling current points; (3) judging whether the adjacent current sudden change value belongs to a specific interval, if yes, judging that a short-circuit event occurs, and entering step (5); if not, judging that no short-circuit event occurs, and entering the step (4); (4)performing current data acquisition on each electric meter and returning to the step (1); (5) collecting the current data of each electric meter, and calculating the change value between the currentdata and the previous current data; (6) judging whether the current change value belongs to a specific interval b1 or not and whether the current belongs to a specific interval b2 or not; if yes, judging that the electric meter user is short-circuited; and if not, judging that the electric meter user is not short-circuited; and (7) if it is judged that short circuit does not occur in all the electric meter users, judging that short circuit occurs in a certain user in the meter box. Whether an indoor or outdoor short circuit occurs or not can be analyzed, and the rush-repair speed and efficiency are improved.

The invention relates to an enhanced high-speed lower-pass filtering method used for a static synchronous compensator. According to the actual compensating current output by the SVG in the last cyclic wave, a virtual generation current I<ref> (namely a theoretical sampling value) of a current sampling point is acquired, according to an sampling fluctuating value X capable of being allowed under the design requirements of a system, a value range of the compensating current i of the sampling point is acquired, wherein the absolute value of (i-I<ref>) is smaller than or equal to X, and on the basis of the value range, the compensating current of the sampling point is filtered. According to the enhanced high-speed lower-pass filtering method used for the static synchronous compensator, on the premise that a physical filter is not additionally arranged, pre-filtering of an interference current is achieved, and application cost of the method is greatly reduced. Ingenious judgment logic is designed, real-time judgment of the actual compensating current of the current sampling point is achieved, pre-filtering can be completed rapidly, delay hardly exists, and the filtering method has practical application value. Current signals after pre-filtered with the method are subjected to low-pass filtering, and thus filtering effect can be greatly promoted.

The invention discloses a gun propellant companding moulding method which can achieve process design, parameter push and parameter measurement cycle operation, and conduct real-time inverse calculation of design data to obtain suitable companding process parameters. The method uses a collaborative platform technology, and achieves process design, parameter push, reading and analyzing of parameter measurement results, and process cycle operation. Compared with the existing technology, the parametric real-time circulation of design, companding and detection links is achieved, and the foundation is provided for synchronous correction feedback; the technology of target parameter and detection parameter data real-time contrast is used to achieve real-time judgment on the dimension parameters of gun propellant products. Compared with the existing technology, the quality criteria of product online parameters can be provided in real time.

The invention discloses an electric arc stud welding waveform testing device and a quality evaluating method thereof. The electric arc stud welding waveform testing device implements waveform processing to electric current signals through a hardware waveform processing system and a software waveform processing system in the stud welding process, obtains the electric current waveform in the stud welding process, further obtains five quality parameters including arc generating time, an average value of electric arc burning currents, a fluctuating range of the electric arc burning currents, arc burning time and an instantaneous electric current value before arc blowout, contrasts the five quality parameters with standard waveform parameters, and consequently gives quick quality evaluation offinished welding. The quality evaluating method is a nondestructive and real-time test method, prevents a good welding adapter from being damaged in detection, can realize the 100 percent detection of the stud welding adapter, overcomes the detection omission problem that is caused by the fact that only 2 to 5 percent of the stud welding adapters are randomly inspected in traditional methods, andcan simultaneously realize the detection with inner defects such as air holes and incomplete fusion and the like which are hard to be realized by the traditional appearance test methods.

The invention discloses a method for automatically controlling the power flow of regional power grid lines, which specifically includes the following steps: acquiring the SCADA measurement section data of the power grid and the planned power flow data of each line and main transformer of the power grid, and calculating the whole network and each line The result of the power flow overrun plan; add the lines with the power flow overrun plan value exceeding the set percentage to the equipment early warning queue table and give an alarm prompt, and calculate the number of alarms accumulated by the lines in the equipment early warning queue table according to the set time interval; in the equipment early warning When the cumulative number of alarms of a line in the queue table exceeds the set upper limit of warning times, the switch connected to the line is automatically disconnected by remote control operation, and the automatic closed-loop control of the line flow is completed. The invention proposes a method for matching end-face time of power grid SCADA and PMU measurement data, realizes real-time judgment, intelligent early warning and automatic control of regional power grid power flow control, not only ensures control safety, but also improves automation capability of power grid power flow control.

The invention discloses a SOH (State of Health) coefficient regulation method and device for a power battery. The method comprises the following steps: carrying out discharging on a power battery to be regulated; acquiring discharge data of the power battery in the discharging process; according to the discharge data, judging whether to regulate a current SOH coefficient of the power battery; when judging that the current SOH coefficient needs to be regulated, acquiring a regulation strategy; in the next charging process, regulating the current SOH coefficient by using the regulation strategy so as to obtain a target SOH coefficient of the power battery. According to the method, by judging whether to regulate the current SOH coefficient according to the discharge data in the discharging process, acquiring the regulation strategy if the current SOH coefficient needs to be regulated and regulating the SOH coefficient according to the acquired regulation strategy in the next charging process, real-time judgment and regulation on the SOH coefficient in the using process of the power battery are implemented, and accuracy of the estimated SOH coefficient is improved.