45results about How to "Eliminate misjudgment" patented technology

A tuning fork-like terminal is accommodated in a terminal-containing section. The tuning fork-like terminal is provided on the central end with a slit adapted to receive a tab being connected. Clamping portions are projected from the opposed surfaces of the slit to pinch the tab between the clamping portions. A slit gage is inserted into a rectangular terminal hole formed in an end of the terminal-containing section to inspect a slit width between the clamping portions of the tuning fork-like terminal. A wide hole portion is formed in the rectangular terminal hole at the insertion position of the slit gage. The wide hole portion is formed by widening a length of a short side of the rectangular terminal hole. The central position of the slit in the tuning fork-like terminal and the central position of the slit gage coincide with each other, even if the tuning fork-like terminal is maximally shifted from the central position in the terminal-containing section, whereby the slit width can be precisely inspected to precisely inspect a slit width in a tuning fork-like terminal accommodated in a terminal-containing section of an electrical junction box.

A sterility test method includes: selecting strain and culture medium, preparing bacterial cultures, transcribing fingerprint characteristics in thermograms as indices to verify the characteristics, drawing the thermodynamic parameters of the thermogram, determining the positive judgment index and performing sterility test for the samples. A fully-enclosed bacteria collecting ampoule incubator includes bacteria collecting ampoule system, sample and liquid feeding system and peristalsis liquid discharge system. The sample and liquid feeding system is connected with the bacteria collecting ampoule system by the liquid intake tube; and the bacteria collecting ampoule system is connected with the peristalsis liquid discharge system by the liquid drainage tube. The invention is characterized by short inspection time, high sensitivity, high automation and accurate test results on microbial contamination. It can also provide the overall process curve on the growth conditions. Such curve is provided with relatively favorable fingerprint, which enables qualitative analysis on the microbial contamination conditions.

A method for judging the reverse connection of a flow sensor comprises the steps of: collecting a time sequence of pressure intensity x1, x2, x3 and x4 at four consecutive sampling points of time and the flow value S corresponding to that time sequence as basis for judgment; calculating three variables dx1=x1−x2, dx2=x2−x3 and dx3=x3−x4; judging a reverse connection of the flow sensor and giving an alarm signal when any one of the two instances appears: 1) x1, x2 and x3 are all smaller than zero and x1 and x3 are equal to or greater than x2, and flow value S is smaller than a predetermined first threshold value f1; 2) dx1, dx2 and dx3 are all greater than zero and dx1 and dx3 are smaller than or equal to dx2, and flow value S is greater than a predetermined second threshold value f2.

The invention discloses an apparatus and a method for detecting the sealing performance of a battery system box, comprising: a vacuum box, a helium mass spectrometer leak detector, two sets of suctionpumps, and a helium source. The battery system cabinet is arranged in the vacuum box during testing. The helium mass spectrometer leak detector is connected to the vacuum box through the leak detection pipeline. One of the two sets of suction pumps is connected to the vacuum box through the suction line, and the other set is connected to the battery system box through the suction line. The battery system cabinet is connected to the external helium source through the supply line. The battery system cabinet and the vacuum box are respectively connected to the atmosphere through a bleed valve and a relief valve. Pressure sensors are respectively arranged outside the vacuum box and the battery system box. The two pressure sensors are respectively connected to the PLC control unit. The vacuumbox is connected to a standard leak, which is used to calibrate the device. Each pipeline is provided with a solenoid valve, and each solenoid valve is controlled by a PLC control unit. The device cansafely and efficiently detect the sealing performance of the battery system cabinet, and the test accuracy is high.

The invention discloses a comprehensive load series connection arc fault identification method. The method includes the steps of obtaining a main circuit current feature information through a current sensor or obtaining branch circuit loading end voltage feature information signals through voltage sensors, conducting A/D sampling at a fixed sampling frequency, then, filtering noise out of the sampled signals through a filtering algorithm, analyzing the main circuit current feature information signal and branch circuit loading end voltage and arc fault feature information and comparing the main circuit current feature signal and the branch circuit loading end voltage and arc fault feature information with preset threshold values, judging whether arc faults may occur to the voltages of the loading ends of the branches and the current of the main circuit or not, determining whether arc faults occur to a circuit by combining the arc fault judgment result of the branches and the main circuit with the arc fault judgment result of arc faults with relatively weak features after comprehensive parallel connection is achieved, and determining the specific branch circuit according to the voltages of the branch circuits. According to the method, the loading series connection arc faults with obvious fault features under the single loading or the comprehensive loading can be detected, and the load series connection arc faults with relatively weak fault features under the comprehensive loading can be detected.

A fault on the generator can be detected with the use of a simple arrangement. The output of the generator 12 which has multi-phase winding and is driven by an engine 11 is rectified and then converted by an inverter 133 into an alternating current at the frequency of a system before interconnected to the source of the system. After the engine 11 is started, the direct current voltage Vdc is monitored with a first fault monitor 40. When the direct current voltage Vdc rises up to a predetermined level, a connector relay 135 is closed. As the output of the inverter 133 is increased, the interconnection with the system source is enabled. After the interconnection, the direct current voltage and the output of the inverter are monitored with a second fault monitor 43. If the direct current voltage drops down to below the predetermined level before the output of the inverter reaches a rated level, the canceling and re-interconnection is repeated. Then, when the direct current voltage remains below the predetermined level after the re-interconnection, it is judged that the generator 12 has a fault such as a line breakage in the windings disconnection.

The invention discloses a target countering method based on an unmanned aerial vehicle. The target countering method belongs to the technical field of unmanned aerial vehicles and comprises the following steps of: acquiring a safe flight coverage region formed by taking any node in a flight path of an unmanned aerial vehicle A as a dot and taking a preset radius as a scanning radius; judging whether an unmanned aerial vehicle B tracks and flies in the safe flight coverage region or not; if so, target countering method alarm information to a ground station, and acquiring positioning data information of the unmanned aerial vehicle B; and controlling a unmanned aerial vehicle C to take off according to the positioning data information and fly to the unmanned aerial vehicle B to counteract theunmanned aerial vehicle B. Compared with the traditional method for performing human eye recognition judgment on the B unmanned aerial vehicle by using a video, the target countering method providedby the invention has the technical effects of high precision and capability of eliminating misjudgment and false interference caused by human subjective factors.

The invention provides a single-phase user electricity stealing determination and positioning method. It is determined whether each electric energy meter works normally or not by detecting a CT and mainly through signal collection and layer-by-layer analysis, if each electric energy meter works abnormally, Users with abnormal electricity utilization is further determined, an alarm is controlled for alarm, abnormal information is displayed, and concrete user information with the abnormal electricity utilization is sent to electricity utilization inspectors. The single-phase user electricity stealing determination and positioning method provided by the invention can preliminarily discover and position abnormal electricity users and can avoid electricity larceny behaviors.

The invention discloses an abnormal working condition sensing algorithm of a low-voltage power supply circuit. The abnormal working condition sensing algorithm comprises the steps of: sampling instantaneous values ia, ib, and ic of three-phase currents and the instantaneous value ir of residual current according to the set number of sampling points within each cycle, and detecting whether the waveform of ia, ib, ic or ir generates a sudden change point by point; and excluding the erroneous judgement of the low-voltage power supply circuit caused by electrical disturbances point by point: judging whether an abnormal working condition occurs in the low-voltage power supply circuit. The abnormal working condition occuring in the low-voltage power supply circuit is accurately identified, and meanwhile, the erroneous judgement caused by load fluctuations and electrical interference is excluded as much as possible, in order to reduce the performance requirements on a sensing device, a communication bandwidth and the processing capability of a cloud platform. The invention further discloses an abnormal working condition sensing device of the low-voltage power supply circuit, which can also achieve the above technical effects.

The invention relates to a detection tool in an electric power system, in particular to a phasor analyzer. The analyzer comprises a base and a dial. A central shaft is arranged on the dial. A rotatable current phasor pointer used for indicating the current phasor is installed on the central shaft. Scale lines for representing angles are marked on the disc face of the dial, wherein the 0-degree scale line and 360-degree scale line coincide with each other and are perpendicular to a horizontal line. Line voltage phasors (shown in the description) and phase voltage phasors (shown in the description) which are successively arranged in 120 degrees along the clockwise direction are marked on the disc face of the dial. The phase voltage phasor (shown in the description) points to the 0-degree scale line and the angle between the line voltage phasor (shown in the description) and the leading phase voltage phasor (shown in the description) is 30 degrees. A corresponding reverse phasor is arranged for each line voltage phasor and a corresponding reverse phasor is arranged for each phase voltage phaser. The analyzer is simple to operate and judges precisely, thereby facilitating that an operator finds out the phase voltage to which the current phasor belongs and judges the accuracy of wiring of a current secondary loop by rotating the current phasor pointer, and analysis and determination processes are simplified.

The invention discloses an idle speed monitoring method based on data of the internet of vehicles. The idle speed monitoring method comprises the following steps of (1) collecting driving data of a vehicle from the beginning of the new vehicle to the preset driving mileage from the internet of vehicles, and obtaining a normal range of the idle speed of the vehicle according to the driving data; (2) collecting driving data of the vehicle after the preset driving mileage from the internet of vehicles, and judging whether the idle speed of the vehicle is within the normal range according to the following driving data; and (3) detecting whether relevant parameters of the idle speed of the vehicle are normal in sequence if the idle speed of the vehicle is not within the normal range, and finding faulty parts of the vehicle according to detection results. According to the idle speed monitoring method, whether the idle speed of the vehicle is normal can be monitored in real time, and the failure of the idle speed of the vehicle can be identified and diagnosed.

The invention discloses a target unmanned aerial vehicle monitoring and processing method, which comprises the steps of: constructing an unmanned aerial vehicle flight fleet composed of a plurality ofunmanned aerial vehicles, and acquiring an interference region formed by taking any node in a flight path of an operating unmanned aerial vehicle in the plurality of unmanned aerial vehicles as a central point and taking an interference distance as a safety radius; judging whether a target unmanned aerial vehicle flies in the interference region to track the operating unmanned aerial vehicle or not; if so, transmitting alarm information to the operating unmanned aerial vehicle, and acquiring positioning data information of the target unmanned aerial vehicle; and controlling a countering unmanned aerial vehicle to fly to the target unmanned aerial vehicle and countering the target unmanned aerial vehicle according to the positioning data information, wherein the countering unmanned aerialvehicle is any one of the plurality of unmanned aerial vehicles other than the operating unmanned aerial vehicle. Compared with traditional human eye recognition and judgment on the target unmanned aerial vehicle through videos, the target unmanned aerial vehicle monitoring and processing method has the advantages that the precision is high, and misjudgment and misinterference caused by human subjective factors can be eliminated.

The embodiment of the invention relates to a method and equipment for processing a context identifier (CID) of robust header compression (ROHC). The method comprises the following steps of: receiving a first data stream; judging whether the CID number of the first data stream exists in a register bank; if the CID number of the first data stream exists in the register bank, sequentially shifting and registering the CID numbers of data streams which are received after a second data stream is received in the register bank to the historical direction to vacate a register which is preset in the register bank and used for storing the CID numbers of latest data streams, wherein the second data stream is the data stream which is registered in the register bank, and the CID numbers of the second data stream and the first data stream are the same; and registering the CID number of the first data stream in the register which is preset in the register bank and used for storing the CID numbers of the latest data streams. According to the embodiment of the invention, the CID can be stored and reliably updated by using few buffer resources. Meanwhile, the updating process of the CID is simple, and few resources are consumed.

The invention discloses a method for judging whether a billiard ball collides a cushion, and a billiards match scoring system. The method comprises the following steps: recognizing the positions of abilliard ball, a cushion and a cushion position according to an obtained match image in a one-time ball hitting range; obtaining at least one frame of competition process image, identifying the movingbilliard ball information in each frame of competition process image, and speculating the speculating position of the relation between the moving billiard ball and the cushion according to the image/inter-frame data of the moving billiard ball; and according to the relationship between the speculative position of each moving billiard ball and the cushion position, judging the cushion collision information of the moving billiard ball corresponding to the current ball hitting. According to the method and the system, the judgment about whether the billiard ball collides the cushion is more reasonable and accurate.

A power apparatus for a vehicle manages power for a vehicle by performing a power-up operation according to a power-up method determined on the basis of a voltage formed at a power input node connected to a battery of the vehicle when a power-up signal is applied. The power apparatus including a regulator configured to regulate a battery voltage inputted through the power input node; a switch driving circuit configured to turn on/off a switch that controls a connection between the battery and the regulator through the power input node; and a main logic circuit configured to receive control authority for the switch driving circuit from the power apparatus when receiving the power-up signal and the operating voltage generated by the regulator, and to control an on/off operation of the switch.

The invention provides a double-row tapered roller bearing outer ring double-raceway integrated sample ring. The sample ring is characterized in that two bearing detectors are arranged on a measuringbase surface, a measuring point of one bearing detector corresponds to a raceway A of a bearing through a support column, and a measuring point of the other bearing detector corresponds to a raceway Bof the bearing through a support column. The sample ring has advantages of guaranteeing unification of the machining reference and the detection reference, eliminating an error of the measurement reference, eliminating a misjudgment phenomenon between the processes, greatly improving matching sleeve assembling efficiency and clearance accuracy, improving production efficiency and the like.

The present invention provides a high frequency heating device capable of providing protection to the electric member by a simple structure and estimating blockade condition by high accuracy even when the body is positioned at a blockade condition. Wherein, a heating chamber temperature thermister(33), detecting the temperature of the heating chamber(22), is provided on the air suction channel side. The mounting part(37)of the heating chamber temperature thermister(33)is provided with an air suction temperature detecting board(38), by which the air suction temperature is detected, and then the temperature of the heating chamber temperature thermister(33)is corrected by high accuracy according to the detected temperature.

The invention provides a three-phase user electricity stealing judging and positioning method. Through signal acquisition, layer-by-layer analysis is performed according to information acquired by each stage of signal acquisition equipment, whether each electric energy meter works normally or not is judged through detection CT, if each electric energy meter works abnormally, a user with abnormal electricity utilization is further judged, then abnormal information is sent to electricity utilization inspectors, specific abnormal conditions are further judged, and final judgment is made. The invention provides the three-phase user electricity stealing judging and positioning method, which can preliminarily discover and position abnormal electricity users and prevent electricity stealing behaviors.