30results about How to "Reduced measurement power consumption" patented technology

The invention provides a current measuring device which comprises a magnetic ring, a coil, a sampling resistor, a driving voltage source, a comparator, a differentiator, a first feedback unit and a second feedback unit, wherein the first feedback unit is used for acquiring a first feedback signal on the sampling resistor; the first feedback signal can be electrically connected with one input end of the driving voltage source; the second feedback unit can be used for acquiring the first feedback signal on the sampling resistor; after the first feedback signal is subjected to differentiation processing, a second feedback signal is obtained; the second feedback signal can be electrically connected with one input end of the comparator; and an output of the comparator can be electrically connected with the other input end of the driving voltage source. Due to the adoption of the current measuring device disclosed by the invention, a reverse control point of an output voltage of the driving voltage source arranged in a nonlinear area of a BH curve (magnetization curve) of the magnetic ring can be close to a real intersection point of the nonlinear area and a linear area as far as possible, the measuring range of a current to be measured is expanded, the measuring accuracy is improved and meanwhile, the power consumption of the measuring device in the measuring process is reduced. The invention also provides a current measuring method and particularly relates to the current measurement of a direct current or an alternate current on the basis of a magnetic modulation principle.

The invention discloses an excitation detection device for a low power consumption vibrating wire transducer. The device comprises an exciting circuit unit, a pickup vibrating circuit unit and a main control unit, wherein the main control unit comprises a pre-vibration module, a compound vibration module, a frequency detection module and a signal processing module; the signal processing module is used for recording effective compound vibration frequency signals, controlling the excitation detection flow of the transducer to enable the transducer to work in stable and unstable modes and computing the excitation frequency value output by the compound vibration module in the stable working mode according to the recorded effective compound vibration frequency values. The low power consumption vibrating wire transducer provided by the invention has the beneficial technical effects that the vibrating wire excitation modes are changed, the traditional low voltage swept excitation mode is changed to the pre-vibration and compound vibration combined excitation mode, and the frequency value during pre-vibration detection serves as the excitation pulse frequency of compound vibration, thus achieving the effect of saving energy.

The invention discloses a composite vibrating wire sensor device for displacement measurement of three directions. The device comprises a detection unit, a switcher as well as an X-axis vibrating wire sensor head, a Y-axis vibrating wire sensor head and a Z-axis vibrating wire sensor head arranged inside a target to be measured, wherein the X-axis vibrating wire sensor head, the Y-axis vibrating wire sensor head and the Z-axis vibrating wire sensor head are in three directions perpendicular to one another, and the detection unit is used for excitation, vibration pick-up and displacement measurement of the vibrating wire sensor heads; and the detection unit controls the switcher to sequentially communicate with the three sensor heads according to a time sequence, thereby acquiring the displacement values of the target to be measured in three directions. The invention further provides a vibrating wire sensor excitation detection mode with low power consumption, which greatly reduces the energy consumption while realizing all-directional displacement measurement in the structure and meets the requirement of a sensor for long-time work under the unmanned and battery power supply condition.

An embodiment of the invention discloses a co-frequency cell detection method and a co-frequency cell detection device. The co-frequency cell detection method comprises the steps of: determining candidate cells through signal detection; selecting a fake cell from the candidate cells according to parameters corresponding to the candidate cells; and regarding the remaining candidate cells in the candidate cells as target cells. According to the co-frequency cell detection method and the co-frequency cell detection device, the fake cell is selected from the candidate cells according to the parameters corresponding to the candidate cells, and the remaining candidate cells in the candidate cells are regarded as the target cells, so that the interference of the fake cell can be eliminated, thereby reducing measurement power consumption without affecting detection performance of weak cells, and improving mobility of terminals.

The invention relates to a vibration monitoring method, device and system for a moving article. The method comprises the steps that initial setting is carried out, and specifically a first measurement frequency, a second measurement frequency and a vibration intensity threshold are set, wherein the second measurement frequency is higher than the first measurement frequency; low-frequency monitoring is carried out, and specifically the vibration intensity of the moving article is measured through the first measurement frequency to acquire first vibration intensity data; the first intensity is judged, and specifically the first vibration intensity data are judged, and if the first vibration intensity data do not exceed the vibration intensity threshold, low-frequency monitoring is continued, otherwise high-frequency monitoring is carried out; and high-frequency monitoring is carried out, and specifically the vibration intensity of the moving article is measured through the second measurement frequency. According to the invention, the measurement requirements are met; the measurement power consumption can be significantly reduced; and the method, device and system have a great promotional value in the field of moving article measurement.

Method of collecting and measuring impulse current of field electron emission display modulation is an automatic measuring and controlling method for measuring field electron emission display modulation. The method is composed of a host computer PC contrl flow 1, a serial bus USB transmission mode 2, a lower computer FPGA main control, D/A conversion, collection amplifier operation flow 3 and collection mode of display measurement drive 4. The host computer sends order/data and receives measurement status information, the serial bus implements handshaking communication, the lower computer operates to receive order/data and send measurement status information, the display measures drive collection by useing spliced power with nine display characteristic points, three channel high-voltage gate impulse drives directly, one channel collection amplifier collects in rows. The host computer measurement and control proceeds measurement selection, theoretical arithmetic, voltage search, precision set and status inquiry, the lower computer main control proceeds gain selection, digital-analog conversion, voltage regulation, circuit switching, impluse drive, signal collection, waveform processing, logic detection and information feedback.

The invention discloses a device and method for detecting component concentration of mixed gas and application, the temperature of the mixed gas in a measuring gas chamber is regulated to be T1, a heating element is heated to the temperature of T1 + delta T, the temperature of the mixed gas is measured at the position with the distance L from the heating element, and the heating power of the heating element is fed back and adjusted, the temperature of the heating element is kept constant, so that the heat dissipated by gas heat conduction is equal to the electric power consumed by keeping the temperature of the heating element constant, and the heat conductivity coefficient of the combined gas can be measured. When mixed gas to be measured is sequentially adjusted to a plurality of temperatures, the heat conductivity coefficient of the mixed gas is measured by adopting the method, and then a multivariate linear equation set is established according to the heat conductivity coefficient of gas with known component types. The equation number of the equation set is greater than or equal to the number of unknown quantities to be measured, namely the gas concentration, and the linear equation set is solved according to a least square method to obtain the concentration of each gas in the mixed gas.

Disclosed are a signal measurement method and a device, and a computer readable storage medium, the method comprises: a network side configures a measurement period of a user equipment (UE) for measuring a reference signal (RS) in an activated state and an energy-saving state, or configures a transmission period of the measurement RS in the activated state and the energy-saving state of the UE; the network side configures a transmission window for measuring RS; and the network side sends the configured measurement period or sending period and the transmission window to the UE, sends a wake-upsignal wake up signal to the UE, and sends a measurement RS to the UE according to the sending period and/or the transmission window. The method can reduce the UE measurement complexity, reduce the UEmeasurement power consumption, reduce the power consumption of the base station side, and reduce the resource overhead.

The invention provides an indication method for measurement frequency points, a frequency point measurement method, a base station and a terminal. The indication method includes the following steps: first indication information of a plurality of interrelated to-be-measured different-frequency frequency points or second indication information of a plurality of interrelated to-be-measured different-frequency frequency point groups configured for a terminal is sent to the terminal; and the terminal selects one to-be-measured different-frequency frequency point for measurement from the interrelated to-be-measured different-frequency frequency points or the terminal selects one to-be-measured different-frequency frequency point group for measurement from the interrelated to-be-measured different-frequency frequency point groups. According to the embodiment of the invention, the terminal can be prevented from measuring all frequency points configured by a base station, the number of frequency points measured by the terminal can be reduced, the measurement power consumption of the terminal can be reduced, and the measurement opportunity of effective measurement frequency points can be increased.

The invention discloses a multi-mode terminal measurement cell selection method, comprising the following steps: after a first measurement task is completed: the terminal records the cell measured this time as a measured cell, selects N cells with the best signal quality as tracking cells, and estimates the propagation path delay and strength of each tracking cell as historical propagation path delay and strength of the tracking cell; and in non-first measurement tasks: the terminal estimates the current propagation path delay and strength of each tracking cell, only measures the newly added cells to be tested if the deviation between the current propagation path delay and strength of the tracking cells no less than N/2 and the historical propagation path delay and strength of the trackingcell is less than a preset threshold, and otherwise measures all the cells to be tested. The technical solution provided by the invention effectively reduces the measurement power consumption and theamount of received data of the terminal while ensuring the accuracy of the measurement data reported by the terminal.

The invention is suitable for the technical field of communication, and provides a network measurement method and device, terminal equipment and a computer readable storage medium. The terminal equipment can obtain the cell information of the currently connected cellular network cell and inquire the search strategy corresponding to the cell information. Then, the terminal equipment can execute corresponding network measurement operation according to the search strategy, search the cellular network cell of the target network type in a targeted manner, improve the search efficiency, save the measurement power consumption, and prolong the endurance time of the terminal equipment; the invention solves the problem that the current network measurement scheme is high in measurement power consumption and affects the endurance time of the terminal equipment.