255 results about "Calibration instructions" patented technology

A method and system to calibrate a motor circuit protection device is disclosed. An example method calibrates a signal chain of a circuit breaker. The signal chain includes a current transformer, a burden resistor, a stored energy circuit and a controller. The circuit breaker includes a memory coupled to the controller. A calibration instruction routine is written in a first location of the memory. A test current is injected in the circuit breaker signal chain. The test current peak of the test current in the circuit breaker signal chain is measured. Data indicative of the test current peak is stored in a second location of the memory. The test current peak data is read from the second location of the memory. The test current peak data is compared with nominal current data related to the signal chain remotely from the circuit breaker. A calibration factor is determined based on the comparison.

The invention discloses a virtual reality device and a method for calibrating a main perspective screen. The method includes: receiving a calibration instruction, the calibration instruction is triggered by a user operating a calibration key or triggered by a preset system configuration; and obtaining a calibration instruction according to the calibration instruction The user's current line of sight direction, determine whether the line of sight direction is consistent with the main perspective direction of the main perspective picture; if not, adjust the main perspective picture according to the line of sight direction, so that the adjusted main perspective picture The direction of the main viewing angle of the screen is consistent with the direction of the line of sight, so as to solve the problem that the direction of the line of sight is inconsistent with the direction of the main viewing angle of the main viewing angle screen due to the adjustment of the user's posture.

The invention relates to the technical field of a mobile terminal, and discloses a method and system for calibrating a proximity sensor of a mobile phone. The method comprises the steps of fixing the mobile phone with the proximity sensor on a test fixture, arranging a panel for simulating a barrier on the test fixture, and adjusting the distance between the panel and the tested mobile phone to a specified distance; connecting the mobile phone with a PC (Personal Computer); after the reception of a calibration instruction transmitted by a PC end through the mobile phone, starting the proximity sensor to induct the panel for simulating the barrier, and inducting to read out a corresponding ADC (Airborne Digital Computer) reading at the moment; and comparing the ADC reading with a preset value, judging whether the ADC reading exceeds the preset value, and if not, storing the ADC reading. According to the invention, the problem of differences between mobile phone sensors is solved, the consistency of threshold values of the mobile phone sensors is ensured, and the calibrating precision of the proximity sensor of the mobile phone is increased. Simultaneously, the test efficiency is improved, and the production cost is reduced.

The embodiment of the invention provides an active stylus calibration method, an active stylus and an electronic device. The method comprises: the electronic device with a touch display screen establishing network connection with an active stylus, then detecting a function signal emitted by the active stylus, determining the distance between the active stylus and the touch display screen accordingto a detected parameter value corresponding to the function signal, wherein the smaller the parameter value is, the larger the distance is; when the distance is equal to the first threshold value, starting timing, when the timing duration reaches the set duration and the distance is equal to the second threshold value, sending a pressure calibration instruction to the active stylus through the network, the active stylus calibrating the pressure sensor according to the pressure calibration instruction, and the problems of mistaken calibration and water leakage of the active stylus can be solved.

The invention discloses a holder calibration method. The method comprises the steps that a holder driving motor is rotated to a motor limit gear or a position where a marked graduation line of the motor is located or a position when a mobile phone is horizontal after a holder is electrified; a user operation host computer sends a calibration instruction, and a holder MCU receives the calibration instruction, enters a calibration state and records a corresponding position attitude A of the motor; and the holder is disconnected from the host computer and restarted to enter a normal work mode, an IMU assembly measures a real-time attitude angel B, and the MCU obtains the real attitude angle of the holder by calculating B-A. The holder calibration method is characterized by simple operation, high calibration efficiency and high reliability.

The invention provides a universal calibration method for transmission path delay errors of a parallel ADC sampling system, and aims to provide a universal method capable of adapting to sampling frequency changes and correcting multichannel data input delay. According to the technical scheme, a clock and a signal are configured into multi-channel output through an AD chip integrated with M channels, and an AD is connected with an FPGA through a serial peripheral interface to form a high-speed variable sampling rate system. The AD performs multi-channel parallel sampling on high-speed signals to realize first-stage speed reduction, and the FPGA performs serial-parallel conversion by adopting serial-parallel conversion primitives or serial-parallel conversion IP cores to realize second-stagespeed reduction. After the FPGA configures an AD to send a test sequence, a calibration instruction and a state machine are started, a time delay parameter calibration algorithm is operated, time delay parameters are dynamically placed into an FPGA input time delay control primitive, all data lines in channels and among the channels are aligned, the AD exits from the test sequence to output actual signals, and system input time delay calibration is completed.

The invention provides a thermal instrument intelligent calibration system and method. The system comprises an upper computer and a calibration platform, the calibration platform comprises a control unit, a digital programmable standard source, a standard thermostatic tank, a signal conditioning circuit, a CCD camera, a data collection card and an image collection card, the control unit is used for controlling output of the digital programmable standard source and temperature of the standard thermostatic tank according to a calibration instruction of the upper computer, the digital programmable standard source is used for calibrating a temperature transmitter without a sensor, the standard thermostatic tank is used for calibrating a temperature transmitter with a sensor and a pointer-typethermometer, the signal conditioning circuit is used for transmitting output signals of the transmitters to the data collection card, the CCD camera is used for acquiring a dial image of the pointer-type thermometer to be calibrated, and the upper computer is used for receiving signals of the data collection card and the image collection card for analyzing and processing and automatically generating a calibration report. The system can calibrate multiple instruments at the same time and automatically generate reports, and the whole calibration process is high in automation level.

The invention belongs to the technical field of humanoid robots, and particularly relates to a zero calibration method for humanoid robot joints. The method includes the steps that PC upper computer software and mobile phone APPs are adopted to be connected to a humanoid robot through wired connection or wireless connection, or a voice control mode is used for sending out a joint zero calibration instruction to the humanoid robot, a humanoid robot control center can enter into a zero calibration mode, and accordingly each joint begins to be calibrated; during zero calibration, the humanoid robot control center sends rotating instructions to the joints to be calibrated; and the humanoid robot control center inquires the angles of the joints to be calibrated once after some interval of time, it is regarded that the joints to be calibrated have already rotated to joint limitation surfaces when the joints to be calibrated cannot be rotated any more, the humanoid robot control center figures out the error value of one zero position and further stores the error value, and then the zero position of the next joint begins to be calibrated. By the adoption of the zero calibration method, development cost and device cost are reduced, and there is no need to additionally develop a zero calibration device independently.

The invention discloses a multi-rotor unmanned aerial vehicle and a calibrating method and system for an electronic compass thereof. The calibrating method comprises the following steps that ground calibration of the electronic compass of the unmanned aerial vehicle is conducted; the unmanned aerial vehicle is controlled to achieve hovering; an aerial calibration instruction of the unmanned aerial vehicle is received; the unmanned aerial vehicle is controlled to rotate in situ by at least one circle, a first magnetic field intensity measurement value is measured through the electronic compass and compared with a prestored first magnetic field intensity value, a first comparison result is obtained, and aerial calibration is completed. In the above-mentioned technical scheme, according to the calibrating method of the electronic compass, when the unmanned aerial vehicle achieves hovering, airborne equipment of the unmanned aerial vehicle is in a working state, at the moment, the unmanned aerial vehicle is controlled to rotate in situ by at least one circle, in this way, the electronic compass can be calibrated in the working state, and the possibility of a deviation which is generated when the electronic compass achieves orientation discrimination is removed.

The invention provides a battery management system slave address allocation method and system, a mobile terminal and a storage medium, and the method comprises the steps: transmitting an address calibration instruction to a target slave when a host receives an address calibration request transmitted by an external system; the target slave carrying out address allocation on the target slave according to the address identifier; when address allocation is completed, accumulating the address identifiers, and updating the address calibration instruction; the target slave sending the updated addresscalibration instruction to a subsequent slave so as to control the subsequent slave to sequentially perform address allocation, address identifier accumulation, address calibration instruction updating and address calibration instruction sending; and when the host receives an address calibration completion instruction, solidifying the addresses of the target slave and the subsequent slave. Through the sending of the address calibration instruction, the accumulation of the address identifiers and the updating design of the address calibration instruction, the automatic allocation operation ofthe slave addresses is automatically controlled, and the accuracy of slave address allocation is improved.

The invention discloses a metering and calibration method and a metering and calibration system for electrocardio-equipment, which are used for solving the technical problems that the conventional metering and calibration device for the electrocardio-equipment has poor flexibility and is complex to operate and difficult to update and maintain, regulations are inconvenient to extend, and the like. In the method, a calibration instruction and waveform data are sent by a calibration control program run on a general computer, a waveform generating device serving as a general hardware platform generates a standard signal according to the calibration instruction and the waveform data which are sent by the calibration control program and outputs the standard signal to the calibrated electrocardio-equipment, and a calibration control device manages and maintains calibration regulations, calibration items and calibration plans and provides three calibration modes, namely a continuous mode, a single mode and an advanced mode, so the calibration regulations are convenient to extend, an operating interface is more humanized, the daily calibration operation is convenient, and the special demands of users can be met fully.

The invention discloses a specimen dilution deviation tracking and correcting system calibrated by a gas analyzer on line and a method thereof. The specimen dilution tracking deviation correcting system comprises a master control computer, a calibrated gas analyzer and a calibration instrument, wherein the calibrated gas analyzer is communicated with a gas circuit of the calibration instrument via a diluted specimen delivery valve; the calibration instrument is communicated with gas circuits of a zero gas generator and a standard air storage vessel for dilution; the master control computer is respectively connected with the calibrated gas analyzer, the diluted specimen delivery valve, the calibration instrument and the zero air generator electrically; the calibrated gas analyzer is communicated with a gas circuit of a dilution-free standard air storage vessel via a dilution-free specimen delivery valve; and the dilution-free specimen delivery valve is electrically connected with the master control computer. The invention overcomes the deficiency of the traditional gas analyzer in on-line calibration technology, can find out the defective condition of the calibration instruction performance, and obtains the best effect of reducing the standard sample concentration error by a simple and practical technological method; and the working procedure is simple and facilitates the control of the master control computer.

The embodiment of the invention discloses a method and device for adjusting broadcasting amount, an unmanned aerial vehicle and a storage medium, which are applied to the unmanned aerial vehicle for broadcasting by driving a material taking wheel through a motor; the method comprises the following steps: receiving calibration instructions including a calibration rotation speed and calibration duration; controlling a motor to operate at the calibration rotation speed within the calibration duration so as to discharge materials to be broadcast; acquiring flight parameters and the actual discharge amount of materials to be broadcast discharged by a material taking wheel in the calibration duration; determining an adjustment coefficient of the flight speed and the rotation speed of the motor according to the flight parameters and the actual discharge quantity; adjusting the rotation speed of the motor according to the adjustment coefficient so as to adjust the broadcasting amount. In the calibration stage, different materials to be broadcast are controlled to be discharged by controlling the motor to operate the calibration duration at the calibration rotation speed, so that the flightspeed and the motor rotation speed adjustment coefficient can be obtained, the rotation speed of the motor driving the material taking wheel under different flight speeds of different broadcast materials is achieved, and accurate variable broadcast is achieved.

The invention discloses an engine throttle calibration method and equipment as well as engineering machinery comprising the equipment. The engine throttle calibration method comprises the following steps of: receiving a throttle calibration instruction; inputting an initial rated throttle voltage value corresponding to a throttle gear to an ECM (Engine Control Module) of an engine; receiving a rotation speed of the engine and comparing the rotation speed with a target rotation speed corresponding to the throttle gear; when the absolute value of the difference between the rotation speed and the target rotation speed is more than a preset value, adjusting the initial rated throttle voltage value and inputting the adjusted rated throttle voltage value to the ECM to ensure that the absolute value of the difference between the rotation speed and the target rotation speed is less than the preset value; and replacing the initial rated throttle voltage value corresponding to the throttle gear with the adjusted rated throttle voltage value. Therefore, a user can complete the automatic calibration of the throttle by only inputting the throttle calibration instruction, thereby avoiding the poor maneuverability of an excavator caused by the influences of environmental factors such as temperatures and elevation.

The invention discloses a radio frequency equipment calibration method. The calibration method is applied to a calibration device, radio frequency equipment, a frequency spectrograph and a signal source; the calibration device is connected with the radio frequency equipment, the frequency spectrograph and the signal source through a cable, the radio frequency equipment is respectively connected with the frequency spectrograph and the signal source. The automatic calibration of each of frequency, power and power gain of the radio frequency equipment is realized through a calibration instruction preset by the calibration device and a feedback instruction preset by the radio frequency equipment, and the calibration efficiency and precision are improved.

The invention discloses a detecting method and device of the fan operation state, an electric appliance and a storage medium. The detecting method of the fan operation state includes the steps that response to a fan electric current reference value calibration instruction is made, and at least one operation gear position of a fan is obtained according to the fan electric current reference value calibration instruction; the fan is controlled to operate in each operation gear position, and the corresponding fan electric current average value when the fan operates in each operation gear positionis detected and obtained; each fan electric current average value is set to be the fan electric current reference value of the corresponding operation gear position; and response to a fan operation instruction is made, the fan is controlled to operate according to the fan operation instruction, and the operation state of the fan is detected through all the fan electric current reference values. Bymeans of the detecting method and device of the fan operation state, the electric appliance and the storage medium, the accuracy of a detection result obtained after detection of the fan operation state can be improved.

The invention relates to a radio frequency test method and device, an electronic device and a storage medium, which are used for carrying out radio frequency test on equipment supporting an LPWAN technology, and the method comprises the following steps: receiving a calibration radio frequency signal emitted by the equipment, the calibration radio frequency signal being a radio frequency signal emitted by the equipment according to a received radio frequency calibration instruction; calculating the radio frequency power value of the received calibration radio frequency signal, and determining acalibration result by using the radio frequency power value; if the calibration result shows that the calibration is unqualified, sending a correction instruction to the equipment, wherein the correction instruction controls the equipment to correct the configuration information and resend the calibration radio frequency signal for secondary calibration until the calibration result is qualified;and if the calibration result is qualified, performing radio frequency transmitting and receiving tests on the equipment. According to the method, the radio frequency power value transmitted by the equipment is calibrated before the radio frequency test is carried out on the equipment, so that the problem that the output power deviation of the LPWAN equipment produced in the same batch is relatively large is avoided.

A computer-implemented method includes detecting a change in a spatial configuration of a plurality of sensors coupled to an unmanned aerial vehicle (UAV) based on a first set of sensor data from a plurality of sensors, generating one or more calibration instructions to cause the UAV to move along a predetermined pattern in response to detecting the change in the spatial configuration, and determining a subsequent spatial configuration of the plurality of sensors based at least in part on a second set of sensor data from the plurality of sensors. The second set of sensor data is collected by the plurality of sensors when the UAV is moving along the predetermined pattern.

The invention discloses a rapid frequency offset calibration method for a radio frequency module, relates to the technical field of communication, aims to realize rapid frequency offset calibration ofa wireless radio frequency module and ensure the consistency of frequency offset calibration, is suitable for batch test, and comprises the following steps: receiving a frequency offset calibration instruction; controlling a radio frequency module to output an external crystal oscillator frequency according to the frequency offset calibration instruction; sampling the frequency of the external crystal oscillator to calculate real-time frequency offset, and modifying a register value of the external crystal oscillator based on the real-time frequency offset to complete frequency offset calibration. The invention further discloses a rapid frequency offset calibration device for the radio frequency module, electronic equipment and a computer storage medium.

The invention discloses a TPMS leaving-assembly calibration method andn TPMS leaving-assembly calibration equipment based on a bidirectional tire pressure. The TPMS leaving-assembly calibration method comprises the following steps of S1, connecting a WiFi connector with an automotive OBD interface, connecting handheld calibration equipment with the WiFi connector through WiFi communication, accessing into an automotive CAN network by the handheld calibration equipment after communication connection through the automotive OBD interface, and finally forming communication connection with a tire pressure monitoring controller; S2, transmitting a calibration instruction by the handheld calibration equipment to the tire pressure monitoring controller, and after the tire pressure monitoring controller receives the calibration instruction, performing sensor matching; and S3, successively performing calibration according to a sequence of left front, right front, left back and right back, and successively performing calibration according to the step S2, thereby finally finishing TPMS system calibration. The TPMS leaving-assembly calibration method and the TPMS leaving-assembly calibration equipment can realize online tire pressure calibration and furthermore have advantages of simple operation and effective production efficiency improvement.

The invention discloses a test method and a system for IMU automatic calibration. The method comprises the following steps of: generating a calibration instruction and a test instruction according toa setting of a user interface, wherein the calibration instruction controls the working state of a turntable; collecting specified data in the test instruction according to the working state; callinga control algorithm to calculate a calibration parameter and a calibration error according to the specified data; and performing error compensation according to the calibration parameter and the calibration error, and sending the updated calibration parameter to the IMU and simultaneously outputting the test result. The invention also discloses a system which belongs to the same concept as the method, and the calibration intermediate process does not need people to participate, the universality is good, the automation level is high, so that the calibration and the testing have high efficiencyand high precision, and meanwhile, and the data integration management, the online control and the monitoring are achieved.

In the present invention, a receiving unit using a voltage-controlled oscillator, and the like are allowed to compensate for the frequency characteristics of the voltage-controlled oscillator resulting from temperature change, without adding a capacitive element for temperature compensation. A receiving unit and an optical line terminal of the present invention include a clock and data recovery circuit 11 that extracts a clock signal and a data signal from a received signal, and have: a calibrator 16 that calibrates an oscillation frequency of a voltage-controlled oscillator 17 included in the clock and data recovery circuit 11; and a managing unit 104 having a function of managing a schedule for receiving signals, the managing unit 104 selecting a time where a duration of a certain state meets a time required for calibration by the calibrator 16 to thereby output a reset signal (calibration instruction signal) to the calibrator 16, the state having no received signal (upstream signal) from which a clock signal and a data signal are to be extracted.

A moving-target active tracking method based on edge enhancement template matching comprises the following steps of firstly, using an improved tracking target selection criterion to select an interesting target, and establishing a gray template of a target and starting an active tracking mode; secondly, carrying out Gaussian smoothing, normalization and threshold processing on a target template and a search area, and then acquiring an edge-enhanced threshold image; and then using a method of matching and combining fast Fourier transform and an integral image fast template to realize rapid positioning of the target, and updating a target matching template; and finally, through calibrating a camera control instruction, forming a calibration instruction, then using Kalman filtering to predict a position of a next frame of the target, according to the calibration instruction, emitting a motion control instruction to a camera so as to control motion of a holder, and realizing active tracking of the target. In the invention, a common and non-feedback control holder can be controlled so that the active tracking of the target is realized.

The invention relates to an automatic calibration method, an automatic calibration system, terminal equipment and a computer readable storage medium. The method comprises the following steps: obtaining target parameter information of a target calibration object when a calibration instruction of the target calibration object is detected; matching the target parameter information with preset parameter information pre-stored in a calibration database, wherein the calibration database stores calibration compensation information generated by using the collected preset parameter information of a plurality of preset calibration objects; determining preset parameter information corresponding to the target parameter information according to a matching result; and executing calibration compensationoperation on the target parameter information by utilizing the calibration compensation information of the preset parameter information. The calibration operation process can be simplified, the test rate is improved, the accuracy requirement of the test system can be met, and the test efficiency and accuracy are improved.

The invention provides a calibration method, device and system for color and brightness of a LED spherical display screen. The method comprises: sending a calibration instruction to a controller of the LED spherical display screen, and the calibration instruction comprising a target color and target brightness, so that the controller controls each LED module of the LED spherical display screen towork according to the target color and the target brightness; comparing the actual color and the actual brightness of each detection area with the target color and the target brightness respectively,calculating to obtain a color adjustment value and a brightness adjustment value of each detection area, and sending the color adjustment value and the brightness adjustment value to a controller of the LED spherical display screen to adjust the color and the brightness of an LED module of each detection area. The automatic calibration of the color and the brightness of the LED spherical display screen are realized. Compared with a manual correction mode, the calibration error rate is reduced, and the calibration precision and the calibration efficiency are improved.

The invention discloses a sensor calibration method, a sensor and air treatment equipment. The sensor calibration method comprises the following steps: acquiring a calibration instruction; adjusting emission light intensity of detection light, and acquiring receiving light intensity of light received by a light receiving assembly; when a difference value obtained by subtracting first preset lightintensity by the receiving light intensity is more than or equal to zero, and less than or equal to a first preset difference value, updating standard emission light intensity to the current emissionlight intensity, and updating detection reference light intensity to the current receiving light intensity. The sensor calibration method improves the consistency of sensors.

The invention provides a data collection method and system of a multi-turn encoder, a terminal and a storage medium. The method comprises the steps that when a zero calibration instruction is received, zero calibration data sent by the encoder is acquired, and outage saving is performed; when the system is powered on, the saved zero calibration data and real-time collected data sent by the encoderin real timeare acquired; actual data values are determined according to the zero calibration data and the real-time collected data; and whether the encoder crosses zero or not is judged according tothe real-time collected data, and if the encoder crosses zero, zero-crossing processing is performed on the actual data values, wherein an initial position, measured by the encoder, of a mechanical device is set to be zero. According to the method, through encoder initial value calibration and zero-crossing processing, it is unnecessary to consider zero correspondence between the encoder and themechanical device during encoder installation, the encoder can be installed under an arbitrary angle; and meanwhile, limitation of the measuring range of the encoder is avoided, the working efficiencyof encoder installation can be remarkably improved, and the accuracy of encoder data collection is ensured.

The invention relates to a rocking bar calibration method and device. The method comprises the following steps that: when a rocking bar calibration instruction is received, collecting a current first electric signal; judging whether the first electric signal is matched with a preset reference electric signal on a preset position of the rocking bar or not; and when the first electric signal is matched with the preset reference electric signal, determining a current position corresponding to the first electric signal as a preset position, wherein the preset position comprises at least one of the original point position of the rocking bar and the extreme position of the rocking bar. By use of the technical scheme, when a rocking bar calibration instruction is received and the collected current first electric signal is matched with the preset reference electric signal, the current position corresponding to the first electric signal can be determined as a true preset position under a current situation, so that the current preset position of the rocking bar can be accurately confirmed through the current first electric signal, and a situation that a control signal generated by the rocking bar is inaccurate due to the change of the preset position since environment factors and use duration are changed is avoided.

The embodiment of the invention discloses a proximity sensor calibration method and a terminal. The proximity sensor calibration method comprises steps: a calibration instruction is received; whether to meet a preset calibration condition is detected; and if not, the calibration instruction is denied to be executed, and if yes, the calibration instruction is executed to calibrate the proximity sensor in the terminal. The embodiment of the invention has the advantages that calibration errors can be reduced, and the calibration reliability can be ensured.