48results about How to "Suppress misjudgment" patented technology

The invention discloses a car collision detection method and device based on a three-shaft acceleration sensor; the method is as follows: collecting three shaft acceleration values once by the three-shaft acceleration sensor in every scheduled time; reading current three shaft acceleration values of a car, performing arithmetic average processing on predetermined times of three shaft acceleration values before the current three shaft acceleration values of the car, calculating the average value of the predetermined times of three shaft acceleration values on each shaft; calculating the difference values between the current three shaft acceleration values of the car and the average value corresponding to each shaft, and judging whether the car collision happens according to the difference values and threshold. The car collision detection method and device can effectively suppress influences caused by abnormal sudden beats during sensor sampling, effectively avoid detection misjudgment caused by angle difference of equipment installation, and effectively inhibit collision detection misjudgment caused by normal acceleration and deceleration, and is high in accuracy and low in misjudgment rate.

An air-fuel ratio imbalance detection apparatus includes an air-fuel ratio sensor that is arranged in an exhaust passage of an internal combustion engine and that includes an electrode and a diffusion layer provided on the electrode; an estimating unit configured to estimate or detect an output variation amount that is an amount of variation in an output of the air-fuel ratio sensor due to an influence of a pressure pulsation of exhaust gas from the internal combustion engine; and a determination unit configured to determine whether there is an air-fuel ratio imbalance among cylinders of the internal combustion engine, on the basis of the output variation amount and a determination value based on the output of the air-fuel ratio sensor.

An engine ECU executes a program including a step of, when it has temporarily been determined that knocking had occurred because of the presence of an integrated value greater than a product of the reference magnitude and coefficient Y among the integrated values of vibration in fourth frequency band D that includes first to third frequency bands A to C, calculating knock magnitude N using the integrated values in the synthesized waveform of first to third frequency bands A to C and correlation coefficient K calculated from a vibration waveform of fourth frequency band D. Based on a comparison between knock magnitude N and determination value V(KX), whether or not knocking has occurred is determined. If there is no integrated value greater than a product of the reference magnitude and coefficient Y, it is determined that knocking has not occurred.

A drug inspection apparatus inspects drugs that are prepared based on prescription information and are packaged in a prescription bag. A drug database includes drug images of drugs that can be prepared. A comparison target selection section acquires drug images of drugs, which are prepared according to the prescription, and drugs similar thereto from the drug database. A first drug determination section compares captured images of prepared drugs with the drug images acquired from the drug database, and determines drugs present in the captured images and the number thereof. An inspection result determination section determines whether or not the prepared drugs and the number thereof match the prescription information based on the prescription information.

The invention provides a non-lighting inspection apparatus capable of restraining fuzzy generation, image fringe phenomenon appearance, and the like to perform exact inspection, and capable of modulating the light of the backlight lamp. The apparatus is used to perform non-lighting inspection to the panel to be detected. The apparatus includes: a linear array camera, provided opposite to the conveying apparatus, for acquiring the image of the panel to be inspected conveyed by the conveying apparatus; a backlight lamp, configured opposite to the linear array camera, and irradiating the light on the panel to be inspected; a sensor for detecting panel, which detects the position of the panel to be inspected conveyed by the conveying apparatus at upstream side of the linear array camera; an optical control plate, which controls the light ejecting from the backlight lamp, to emit the light in the linear array camera at high efficiency; a control part, which lighting up the backlight lamp after passing the setting time that the panel to be inspected enters in the visual field of the linear array camera.

There is provided an apparatus including a touch panel for detecting a moving start point and a moving end point of a pointer, a first determination unit for, while an apparatus is being gripped with a first hand, determining whether the apparatus is being one-handedly operated with a finger of the first hand as the pointer, a setting unit for, when the apparatus is being one-handedly operated, setting a determination region made of two or more regions to each of which a different moving direction is assigned, by using two or more curved lines which are previously obtained by approximating to a moving trajectory of the pointer during one-handed operation and are set with the detected moving start point as an intersection, and a second determination unit for determining a moving direction assigned to a region in which the detected moving end point is positioned as the operation direction.

An overhead structure determination device mounted in a vehicle includes a sensor, a target information acquisition device, a road surface height acquisition device, and a determination device. The target information acquisition device detects a target in front of the vehicle using the sensor and acquires a relative position and a relative height of the target with respect to the vehicle. The road surface height acquisition device acquires a relative height of a below-target road surface with respect to the vehicle as a road surface height. The below-target road surface is a road surface at the relative position of the target. When a difference between the relative height of the target and the road surface height exceeds a threshold, the determination device determines that the target is an overhead structure present above a height of the vehicle.

The invention discloses an engine detonation detection method. A crankshaft phase of a detonation identification window of a current combustion cylinder is compared with a crankshaft phase of an oil-fuel injector needle-valve seating period of a next combustion cylinder; whether oil-fuel injector seating noise enters the detonation identification window of the current combustion cylinder is determined; if so, an overlapping detonation intensity Cvirkr of the current combustion cylinder is calculated by using default background noise Srkr before the detonation identification window of the current combustion cylinder comes, wherein the Cvirkr is equal to ikr/Srkr and the ikr expresses a detonation sensor signal integration value of the detonation identification window of the current combustion cylinder; and bercause the default background noise is larger than a detonation sensor signal integration value of a detonation identification window of an internal combustion cylinder normally and a detonation detection threshold value increases, erroneous engine detonation judgement caused by entrance of the oil-fuel injector seating noise into the detonation identification window of the current combustion cylinder can be reduced. In addition, the invention also discloses a preignition detection method of an engine.

Provided is an abnormality determination device of a vehicle including an engine and a first motor that is configured to output a torque to an output shaft of the engine, the abnormality determination device determining an output abnormality of dropping output of the engine in the vehicle. The abnormality determination device has an abnormality determination unit that determines that an output abnormality of the engine has occurred when an actual torque that is estimated, based on a torque of the first motor, as a torque actually output from the engine falls below a lower limit of an allowable range for a target torque to be output from the engine, and when an amount of increase in a rotational speed of the engine is smaller than a threshold value for misdetermination suppression, which is a threshold value that is larger as the target torque is higher.

The invention discloses an engine knock detection method. A knock recognition window of a current combustion cylinder and the crankshaft phase position of the closing time period of an air inlet valve of a next combustion cylinder are compared, whether the closing noise of the air inlet valve enters the knock recognition window of the current combustion cylinder or not is judged, if the closing noise of the air inlet valve enters the knock recognition window of the current combustion cylinder, when the knock recognition window of the current combustion cylinder comes, the overlapping knock strength Cvirkr of the current combustion cylinder is calculated through the default background noise Srkr, Cvirkr=ikr/Srkr, ikr is a knock sensor signal integration variable of the knock recognition window of the current combustion cylinder, and because the default background noise is larger than the knock sensor signal integration variable of the knock recognition window of an internal combustion cylinder under the normal condition, and a knock detection threshold is improved, the engine knock misjudgment caused when the closing noise of the air inlet valve enters the knock recognition window of the current combustion cylinder can be reduced. The invention further discloses an engine pre-ignition detection method.

The invention discloses a method for dynamically determining integer ambiguity in RTK (real-time kinematic) positioning and belongs to the field of global satellite navigation system RTK positioning. After ambiguity and Ratio value are searched out by using LAMBDA method, a threshold is set dynamically according a stage of RTK positioning process; if both Ratio value and accumulative Ratio value of an ambiguity combination currently resolved via epoch are greater than the corresponding set threshold, it is determined that the ambiguity combination is correct. The method of the invention enables ambiguity misjudgment and judgment omission to be effectively avoided, ambiguity determining reliability is improved, time to converge to a fixed solution in RTK positioning can be shortened, and RTK positioning precision can be improved.

Disclosed is a verification device and the like that suppress an erroneous determination upon determining a difference between input patterns based on a similarity to a reference pattern recorded under a specific condition. A verification device 100 includes a similarity calculation unit 6 calculating similarities S7 between a set of input information x 110 and y 111 indicating features related to input patterns that are objects of verification and a plurality of types of reference information 112 indicating features related to a reference pattern to be a reference of the verification by using the set of input information x 110 and y 111 and the plurality of types of reference information 112. The calculated similarities S7 are presented to an external device or a user.

An ECU performs a failure diagnosis for a thermostat valve after starting of an engine based on an output of an engine-side coolant water temperature sensor and an output of a radiator-side coolant water temperature sensor. When an electric pump operates in accordance with a heating request or the like of an air-conditioning device during stopping of the engine, the thermostat valve attains a closed state. When the electric pump operates during stopping of the engine before the current starting of the engine, starting of the failure diagnosis performed after starting of the engine is delayed as compared to the case where the electric pump does not operate during stopping of the engine. Consequently, erroneous determination can be suppressed in the failure diagnosis for the thermostat valve.

A power supply device includes a DC power supply circuit configured to output DC power, and a ground-fault determining circuit configured to determine presence or absence of a ground fault at a post-stage of the DC power supply circuit. The ground-fault determining circuit includes a capacitor having an end that is connected with ground, and a diode including an anode and a cathode. The anode is connected with another end of the capacitor, and the cathode is connected with an output end on a high voltage side of the DC power supply circuit. The ground-fault determining circuit further includes a constant voltage source configured to charge the capacitor with a prescribed charging voltage, and a comparator as a determining portion configured to determine presence of the ground fault when a voltage across the capacitor falls below a prescribed determination reference voltage lower than the prescribed charging voltage.

An input device includes a sensor unit, a processing unit, a storage unit, and an interface unit. The processing unit includes: a change amount calculating section for calculating the temporal change amount of the electrostatic capacitance that is detected by the sensor unit and that changes according to the proximity degree of an object with respect to a detection surface; a determination section for determining a touch operation corresponding to an operation on the detection surface using a fingertip, a palm operation corresponding to an operation on the detection surface using a palm, and a grip operation corresponding to an operation on a conductor portion, based on the calculated change amount; and a reset section for performing reset processing in a case where the duration of a state, in which a palm operation is not determined and a grip operation is determined, is a first predetermined time or more.

The ECU executes a program including the step of setting a threshold value A to be compared with a stroke amount of an actuator for determining whether gear shifting has completed or not, taking no account of a deflection amount C of the hardware due to the shift load, when the vehicle speed V is higher than a predetermined vehicle speed V(0), and the step of setting a threshold value B to be compared with the stroke amount of the actuator for determining whether gear shifting has completed or not, to a value obtained by adding the deflection amount C of the hardware due to the shift load to the threshold value A used when the vehicle speed V is not lower than V(0), when the vehicle speed V is lower than the predetermined vehicle speed V(0).

A control device for an internal combustion engine is disclosed. The internal combustion engine includes a plurality of cylinders, a fuel injection valve configured to supply fuel to each cylinder, an EGR passage configured to connect an exhaust passage and an intake passage, an EGR valve configured to adjust a flow rate of exhaust gas flowing from the exhaust passage into the intake passage through the EGR passage, and an air-fuel ratio sensor provided in the exhaust passage. The control device includes an electronic control unit configured to execute determination processing for determining that a degree of imbalance abnormality is greater when a fluctuation amount of a detection value of the air-fuel ratio sensor is relatively large than when the fluctuation amount is relatively small.

A fixing device includes a first rotatory body, a heater, a pressure receiving member, a supporting member, a second rotatory body, a position detection section, and a determination section. The position detection section detects a position of an outer circumferential surface of the first rotatory body in terms of a radial direction. The determination section determines a rotation state of the first rotatory body based on a result of detection by the position detection section. The position detection section includes a first position detection member and a second position detection member. The first position detection member is located upstream of the fixing nip in terms of a rotation direction of the first rotatory body. The second position detection member is located downstream of the fixing nip in terms of the rotation direction.