80results about How to "Reduce detection frequency" patented technology

The engine misfire detection process according to one aspect of the invention first makes tentative detection on the occurrence or the non-occurrence of an engine misfire in execution of both vibration control and rotation speed control. In response to the tentative detection of an engine misfire, the engine misfire detection process subsequently makes final detection on the occurrence or the non-occurrence of an engine misfire. In the event of no final detection of an engine misfire, the engine misfire detection process makes tentative detection and final detection on the occurrence or the non-occurrence of an engine misfire in prohibition of the vibration control. In the event of still no final detection of an engine misfire, the engine misfire detection process makes tentative detection and final detection on the occurrence or the non-occurrence of an engine misfire in further prohibition of the rotation speed control. Even in the event of no final detection of an engine misfire in execution of both the vibration control and the rotation speed control, the procedure of the invention makes final detection on the occurrence or the non-occurrence of an engine misfire in prohibition of execution of the vibration control and further the rotation speed control. This arrangement desirably increases the detection frequency of engine misfires.

A position indicator includes a time-constant circuit having an element whose characteristic continuously varies in response to operation represented as a continuous quantity such as writing force, and capable of switching the variation range of time constant in response to the variation in characteristic of the element in at least two ways; and a discharging/charging device capable of discharging the time-constant circuit from a predetermined voltage to a voltage below a specified voltage, or charging the time-constant circuit from the predetermined voltage to a voltage exceeding the specified voltage. Using the time-constant circuit and discharging/charging device, the number of waves of AC signals at a specified frequency is counted from the discharge start time to the time when the voltage falls below the specified voltage, or from the charge start time to the time when the voltage exceeds the specified voltage, by switching the variation range of time constant.

A visual detection arrangement is provided in a milking system (3) comprising a robot arm (15) for attaching a teat cup (11) to a teat of a milking animal (8), and a control device (19) for controlling the movement of the robot arm. The detection arrangement comprises first visual detection means (17) provided on the robot arm for repeatedly determining the teat position relative the robot arm and second visual detection means (21) directed towards the milking animal. The second visual detection means (21) is provided for detecting a position of the animal in a longitudinal direction (x), and the control device (19) is initially provided for controlling the movement of the robot arm based on information of the position of the teat of the animal relative the animal itself; and on the detected longitudinal position of the animal.

A method of adjusting a sensitivity parameter value for substrate defect inspection used in a substrate defect inspection apparatus compares, for each pixel value of a selected virtual inspection substrate, using reference pixel data to be used after adjustment, the deviation amount from an allowable range corresponding to the position thereof and the sensitivity parameter value before the adjustment when each pixel value is deviated from the allowable range, and updates the deviation amount as a new sensitivity parameter value when the deviation amount exceeds the sensitivity parameter value and a difference between the deviation amount and the sensitivity parameter value is equal to or less than a threshold value.

An embodiment of the invention provides a user online detecting method, device and system and relates to the communication field. The detecting frequency can be reduced, accordingly the expenditure of network side device resources is reduced, and the response burden of a user terminal is reduced. The user online detecting method comprises the steps of sending detection information to the user terminal; re-sending the detection information to the user terminal in a first time interval from the previous detection information sending completion time if response information reported by the user terminal according to the detection information is received within a timeout duration; re-sending the detection information to the user terminal in a second time interval from the previous detection information sending completion time if the response information is not received; confirming that the user terminal is not on line when the times that the response information is not received is larger than or equal to the preset non-response times, wherein the first time interval is larger than or equal to the second time interval, and the second time interval is larger than or equal to the timeout duration. The user online detecting method, device and system is used for detecting the user online situation.

The invention aims to provide a method for calculating residual capacity of a metering instrument battery, thereby settling a technical problem of incapability of realizing low energy consumption andhigh precision in a prior-art solution. The method comprises the following steps of determining whether first capacity interval grade changing occurs according to the residual capacity C1; if yes, obtaining the current battery temperature and the current battery voltage; determining whether second capacity interval grade changing occurs according to the current battery temperature and the currentbattery voltage, and if yes, acquiring the residual capacity C2 according to the current battery temperature and the current battery voltage, and using the residual capacity C2 as the residual capacity in changing from an upper capacity interval to the current capacity interval; and repeating the steps after a preset time interval. The method according to the invention can realizes the following beneficial technical effects: reducing detecting frequency of a residual capacity detecting method, reducing energy consumption and improving precision of the residual capacity of the invention.

The invention discloses a control method and apparatus of a passive infrared detector. The method comprises the following steps that: whether a person exists in the detection area of the passive infrared detector is judged; if it is judged that a person exists in the detection area, the detection frequency of the passive infrared detector is adjusted according to the status of the person approaching or leaving the passive infrared detector; and if it is judged that no one exists in the detection area, a preset dormancy detection frequency is executed. According to the control method and apparatus of the passive infrared detector of the invention, whether a person exists in the detection area of the passive infrared detector is judged; whether the person approaches or leaves the passive infrared detector is judged; the detection frequency of the passive infrared detector is adjusted; when the person leaves the passive infrared detector, the detection frequency of the passive infrared detector is controlled to be reduced, and therefore, the energy consumption of the passive infrared detector can be reduced.

A hidden sensing device and its urinal are disclosed. The hidden sensing device, which is attached on some sanitary installations, comprises a conductivity sensor for detecting urine and a Micro-programmed Control Unit (MCU) for processing signals, wherein said conductivity sensor has electrodes extending into urine. The device further includes a microwave sensor controlled by the MCU to detect human's movements. When the conductivity sensor has detected urine, the MCU will turn on the microwave sensor to detect the human's presence or departure.

A printing apparatus capable of reducing the frequency of detection of a recording agent remaining amount and obtaining accurate information of the recording agent remaining amount. When a printed sheet is discharged, a CPU of a printer updates information representing the number of discharged sheets and stores the information into a memory of a print engine. The CPU refers to toner remaining amount information stored in a memory of a cartridge and determines whether there is a sufficient toner remaining amount in the cartridge. If there is no sufficient toner remaining amount, toner remaining amount detection is executed each time printing of one page has been performed. If there is a sufficient toner remaining amount, the toner remaining amount detection is executed when the number of discharged sheets coincides with a predetermined value.

An input position detection apparatus using a touch screen panel (TSP) includes: a power supply unit supplying a power; a transmission unit transmitting at least one internal signal formed by the power supplied by the power supply unit; a receiving unit receiving at least one signal among the internal signal transmitted by the transmission unit and at least one external signal transmitted by at least one electronic pen; and a controller comparing a strength of the signal received by the receiving unit with a strength of the internal signal transmitted by the transmission unit, determining a type of input method according to a result of a comparison, and detecting an input position.

The invention provides a low-power anti-loss safety U-disk. The low-power anti-loss safety U-disk comprises a USB interface, a USB switch, a memory, a controller, a power module and a communication module, and also a U-port status detection module; the USB interface is connected with the communication module by use of a U-port status detection module; when the U-port status detection module detects that the USB interface is not connected to the USB socket of an external reading device, the communication module is in regular communication with a hand-held device in a first mode; when the U-port status detection module detects that the USB interface is connected to the USB socket of the external reading device, the communication module is in regular communication with the hand-held device in a second mode; the power consumption in the first mode is lower than the power consumption of the second mode. According to the low-power anti-loss safety U-disk, the U-port status detection module is arranged between the USB interface and the communication module; according to the status of the U-port, the communication module is switched between the first mode and the second mode to work, and therefore, the power consumption of the U-disk is remarkably reduced and the practicability of the U-disk is enhanced.

The invention provides an electric vehicle high-voltage power storage battery inspection control method and device. The method comprises the steps that when a power management system BMS is in a dormant state, the BMS is awakened according to preset time intervals in multiple preset time periods, and the preset time interval in the later time period is larger than the preset time interval in the previous time period; and detecting a battery after the BMS is awakened, and judging a condition of the battery according to a detection result. In the invention, the battery management system is awakened regularly at the preset time intervals; and the battery management system detects the battery after being awakened, judges the condition of the battery according to a monitoring result and takes corresponding measures according to the condition of the battery so that a battery fault of the electric vehicle is effectively pre-judged, a problem of frequent faults during standing of the battery of the existing electric vehicle is solved, and a fault probability of the battery of the electric vehicle is reduced.

The invention discloses a method and a device for detecting a transmission path, and belongs to the technical field of data transmission. The method comprises the following steps: judging whether a network detection task for a destination address exists locally or not when data flow directed to the destination address is received; if so, adding the receiving times recorded for the data flow directed to the destination address by 1, otherwise creating a network detection task; and executing the network detection task when the receiving times is greater than a preset hot address threshold, and resetting the duration of the network detection task. Through adoption of the method and the device, the detection frequency of the destination address with low heat can be reduced, and the detection frequency of the destination address with high heat can be lowered, thereby not only reducing the occupation of bandwidth resources, but also ensuring the network acceleration effect of data transmission.

The invention discloses a self-supplied energy monitoring system for water quality in a scenic area, which includes a command center and a monitoring terminal. The monitoring terminal includes a bearing floating body, and a vibration power generation unit, a power management unit, a processor unit and a wireless communication unit are arranged inside the bearing floating body. A solar power generation unit is arranged above the bearing floating body, a sensor unit is arranged below the bearing floating body, the bearing floating body is connected to the bottom of the water through a fixed rope, the vibration power generation unit and the solar power generation unit are connected to the power management unit, the The power management unit is connected with the processor unit, the wireless communication unit and the sensor unit. The invention converts wave energy and solar energy into electric energy for self-supply, satisfies the electricity consumption for water quality monitoring in water areas, creates necessary conditions for wireless monitoring of water quality, and can ensure uninterrupted supply of electric energy.

The invention discloses a manufacturing technology of a machining tool provided with a polycrystalline diamond tool bit. A polycrystalline diamond tool bit blank and a tool shank blank are aligned andfixed by the aid of welding fixtures, and then corresponding ends of the polycrystalline diamond tool bit blank and the tool shank blank are coated with welding paste and are subjected to vacuum welding; the other end of the polycrystalline diamond tool bit blank is subjected to laser cutting to form 32-36 cutting blades which are distributed annularly and evenly, a chip removal groove is formedbetween every two adjacent cutting blades, the blade width of each cutting blade ranges from 0.06 mm to 0.2 mm, the surface roughness Ra of the cutting edge of each cutting blade ranges from 0.1 micron to 0.4 micron, and the helical angle of each cutting blade ranges from 35 degrees to 55 degrees. The obtained machining tool provided with the polycrystalline diamond tool bit has the good abrasionresistance, has the long service life at least twice that of a welding piece pcd contour tool, has the higher workpiece machining efficiency and is shorter in machining time, products machined by theaid of the machining tool provided with the polycrystalline diamond tool bit are good in size stability, the testing frequency is reduced, and the rejection rate is low.

An image detection method is performed by a computer to determine whether or not an image in a region shot by a camera changes. According to the method, consecutive images shot by the camera are captured, and at least one anchored frame for the consecutive images is set. Whether or not the images in the anchored frame should or should not change is determined, and a signal is transmitted to determine whether or not the detected region is normal or not. Then, a notification signal is transmitted automatically to remind supervisors to closely observe the detected region.