162 results about "Timing results" patented technology

The embodiment of the invention provides resistance value or capacitance value measuring method and device. The resistance value measuring device comprises an integrated circuit (IC) and a charging and discharging circuit, wherein the IC comprises a timer and an I/O (input/output) port with a break detection function, and the IC is used for acquiring the timing result of the timer and generating the resistance value of a resistor to be measured according to the timing result; the charging and discharging circuit is formed by connecting the resistor to be measured and a capacitor in series, one end of the charging and discharging circuit is coupled with the I/O port of the IC, and the other end of the charging and discharging circuit is grounded; the IC charges the capacitor through the I/O port and the resistor to be measured, and when the capacitor is in a charging saturation state, the IC controls the timer to begin timing, triggers the capacitor for executing the discharging process and starts the break detection function of the I/O port; and when the I/O port detects that the voltage value of the capacitor reaches the threshold value of break of trigger voltage in the discharging process of the capacitor, the I/O port is used for sending a break signal to the IC to trigger the IC for controlling the timer to stop timing. The device realizes the measurement of the resistance value with lowest hardware cost.

The invention discloses a frequency offset estimation and timing method and a frequency offset estimation and timing device. The method comprises the following steps of: performing rough timing on a received signal according to a rough timing scheme to obtain a rough timing result; performing decimal frequency offset estimation based on a repetitive structure of the received signal according to the rough timing result to obtain a decimal frequency offset estimation result; determining a searching window according to an error range of the rough timing result and the positions of ghost peaks produced by integral frequency offsets; and in the searching window, performing integral frequency offset detection on the received signal by utilizing the decimal frequency offset estimation result and at least one integral frequency offset, and obtaining an integral frequency offset estimation result and a precise timing result according to an integral frequency offset detection result. By the method and the device, the influence of the ghost peaks and noises on the frequency offset estimation results can be eliminated, the problem of over-high processing load caused by an irrational searching range in related technologies can be solved, and the frequency offset estimation and timing precision can be effectively improved; and the method and the device can be effectively adapted to scenes with high noises and frequency offsets.

The invention discloses a pseudolite time synchronization method and a positioning method thereof. The reference station is provided with a high-accuracy clock, such as a rubidium atomic clock, and a synchronization signal is transmitted by the reference station; the signal transmitted by the reference station is received by pseudolite stations synchronously, signal processing and timing calculation are performed to obtain a high-accuracy timing result, and the local locks of the pseudolite stations are corrected; and a distance measuring signal is transmitted by each pseudolite station under the control of the local lock. In the pseudolite user positioning process, the pseudolite user receives the signals transmitted by the pseudolite stations, and signal processing is performed to obtain a positioning result of the user. According to the invention, advantages of simple implementation and low hardware cost can be realized.

The invention discloses a traffic flow parameter real-time detection method based on a traffic monitoring video. The method comprises the steps of video pre-calibration: calibrating the type and position of a vehicle; target detection: using pre-calibrated data to train a deep learning model of vehicle target detection based on the SSD; coordinate mapping: solving a mapping relation between a monitoring video image coordinate system and a world coordinate system; vehicle target tracking: tracking vehicle driving in real time by adopting a nucleation correlation filter tracking algorithm in combination with a deep learning model of vehicle target detection; index acquisition and calculation: setting a calibration area timer, acquiring a time index, combining a vehicle target detection result, a tracking result of a vehicle tracking algorithm and a timing result of the timer, and obtaining a real-time detection result of the traffic flow parameters through coordinate mapping conversion.According to the method, the problem of directly obtaining the traffic flow parameters from the traffic monitoring video is solved, and real-time accurate detection of multiple traffic flow parameterscan be completed at a time.

The invention discloses an ultrasonic distance measurement system and a method for controlling the ultrasonic distance measurement system to measure the distance. The ultrasonic distance measurement system comprises an ultrasonic sensor and a mobile terminal, wherein the ultrasonic sensor is used for transmitting an ultrasonic signal to a measurement target and receiving an analog signal reflected by the target; the mobile terminal is used for receiving the analog signal received by the ultrasonic sensor through an audio port of the mobile terminal and carrying out timing operations, the distance is calculated on the basis of the obtained analog signal and a timing result, the obtained distance is stored and displayed, and the ultrasonic sensor is controlled to be started. The mobile terminal is adopted to serve as a processor, a cycle sine wave signal is output to a power obtaining circuit through a second channel of the audio port to serve as a power supply of the ultrasonic sensor, an intermittent power supply strategy is adopted, and electricity is saved; a cycle sine wave signal is transmitted to a transmitter of the ultrasonic sensor through a first channel of the audio port to provide a square signal with proper power for the ultrasonic sensor, and an echo signal of the ultrasonic sensor is received through a fourth channel of the audio port.

The invention discloses a road section pedestrian traffic signal control system based on pedestrian crossing clearance time. The road section pedestrian traffic signal control system based on the pedestrian crossing clearance time comprises a pedestrian data acquisition and recording unit, a pedestrian crossing clearance time computing unit and a signal implementation and feedback unit, and is applicable to pedestrian signal timing designs of thick crowd crossing districts and intersections with exclusive pedestrian phases. The road section pedestrian traffic signal control system based on the pedestrian crossing clearance time comprehensively takes time loss and pedestrian crossing traffic capacity decline due to mutual disturbance of stream of people of opposite directions during thick crowd crossing into consideration, overcomes the defects that the pedestrian speed is used as a constant and the pedestrian crossing capacity is unchanged in a traditional pedestrian traffic signal control, so that the timing result is more accurate and practical. Only the pedestrian flow and the pedestrian speed of the pedestrian crossing are needed to be measured and computed, so that the computation is concise.

The invention discloses a method for reporting a call log, which comprises the following steps of: UE generates a call log document when starting a wireless resource control connection request, wherein the call log document records the real-time call behavior of the UE, and one record of the call log document is completed after ending the calling; and a log timer counts the time that the user terminal does not report the call log document, resets and starts when the user terminal initializes, switches off or completes one report of the call log document, and triggers the UE to report the call log document and the current timing result of the log timer when the log timer is overtime or reports the proper time of the call log document to the user terminal. The invention further discloses a method for matching the call log, a device for reporting the call log and a device for matching the call log. The scheme of the invention is simple and practical.

A method and a system for expressing results of a timing analysis of an integrated circuit (IC) chip design as relative values to drive efficient chip design closure include: using a computer, performing the timing analysis to compute timing results of the chip design across at least two design corners; applying corner specific normalization equations to the timing analysis results from each of the at least two corners to obtain normalized timing results; and using the timing results ordered and filtered by the normalized timing results of the IC chip design for the design closure prior to chip manufacture. The slacks are normalized to provide insight into the degree of difficulty of the required fixes for that slack across corners. Given multiple analyses, the slacks are fixed in a correct order across corners and paths, avoiding inefficient circuit solutions or cost greater design effort.

The invention provides a lamp group based mixed traffic flow signal timing optimization method, which comprises the steps of numbering each lamp group; setting a target function to be solved, wherein the target function takes the shortest period as a solving target, or takes the shortest period as a solution or takes the maximum traffic capacity as a solution; setting constraint conditions of the target function; writing a non-linear optimization solving program according to the target function and the constraint conditions; and finally acquiring an optimization timing result. The method provided by the invention has the advantages and beneficial effects that a signal timing scheme can be flexibly adjusted in allusion to flow requirements of different lamp groups, a concept of phase position is not used, turn-on of the lamp groups is not affected by other traffic flows at the same phase position any more, and the green lamp turn-on time of different traffic flows can be connected flexibly so as to achieve maximization of the traffic efficiency of a road crossing; and the traffic safety of non-motorized vehicles and pedestrians can be effectively ensured, and solving is conducted simply and conveniently.

A hybrid linear wire model for tuning the transistor widths of circuits linked by RC interconnects is described. The method uses two embedded simulators during the tuning process on netlists that contain resistors (Rs). A Timing oriented simulator is used only for timing purposes on the original netlist that includes all the Rs. A Gradient oriented simulator is then run only on the modified netlist with all Rs shorted and within the iterative loop of the tuner to compute gradients. The present hybrid method achieves a significant improvement in computational speed. The Timing oriented simulator is fast and accurate for only timing netlists with Rs, but cannot compute gradients efficiently. The Gradient oriented simulator computes gradients efficiently but cannot do so in the presence of Rs. To prevent “de-tuning” that typically occurs when all Rs are shorted, ‘wire-adjusts’ are provided that make the initial timing results using the Gradient oriented simulator on the shorted netlist match the timing results using Timing oriented simulator on the original netlist. This permits the optimizer sense initially the correct set of critical timing paths, and more significantly, it permits the wire-adjusts keep track of the changing transistor widths to guide the optimizer during the iterations until convergence is achieved.

The invention discloses a self-positioning method and system for an intelligent mowing machine. After an UWB positioning module wakes up different UWB labels, positioning signals are sent to the UWB labels and timing is started. The UWB labels send positioning feedback signals to the UWB positioning module. After the UWB positioning module receives the positioning feedback signals, timing is stopped. According to the timing result, the distances between the UWB positioning module and the UWB labels are calculated and the intelligent mowing machine is positioned. Through the UWB positioning module arranged on the intelligent mowing machine and the UWB labels arranged at a plurality of predetermined positions, automatic positioning of the intelligent mowing machine is realized and path planning is further made. A shortcoming that an intelligent mowing machine can only work in a limited area randomly in the prior art is overcome and repeated mowing of the prior intelligent mowing machine is avoided. Resources are saved and working efficiency is improved. Besides, no electric fence needs to be put around a glass land, so that cost is saved further.

A debugging tool for a time-triggered system comprises means for interrogating the system code to determine task details; means for modifying the system code to include breakpoints, the position of the breakpoints being determined by the task details; means for executing the modified system code; means for measuring the time between pre-determined ones of said breakpoints; and means for reporting the timing results to a user.

The application provides a timing method, device and system. The application timely obtains information of the current state of a detected object and then determines whether the detected object is in a moving state or not based on the information of the current state, so that statistics of working time of the detected object is achieved. Therefore, the application does not need to detect change in current and/or voltage of a motor of the detected object and change in liquid pressure or a rotation device, and the application is suitable for operation timing of an internal combustion industrial vehicle while voltage, current, liquid pressure and externally-installed devices such as proximity switches are not required, so that the device installation is enabled to be more convenient, and the equipment cost is lowered. In addition, the application can accurately determine the detected object is in a static or non-working state, or a working state, or the like, so that timing of the whole working of the detected object is achieved, and the integrity and the accuracy of the timing result are ensured.

The invention discloses a timekeeping method and device. When it is determined that a settimekeeping starting condition is achieved, the timekeeping moment of a system timer is obtained and serves as a first timekeeping moment; when it is determined that a set timekeeping ending condition is achieved, the timekeeping moment of the system timer is obtained and serves as asecond timekeeping moment;the number of times the system timer resets in a process is determined, wherein the process is from the moment when the set timekeeping starting condition is achieved to the moment whenthe set timekeeping ending condition is achieved; a difference valueis calculated by subtractingthe first timekeeping moment from the second timekeeping moment, the product of the number of resetting times and a timekeeping periodic value of the system timer is calculated, and the difference value and the product are determined as timekeeping results. Real-time system timersare reset many times during timing.The timekeeping method and device can determine correct timing results, do not need to restart systems, and ensure the normal operation of businesses.

The present invention discloses the architecture of a parallel-processing multi-microcontroller system and a timing control method thereof. The multi-microcontroller system of the present invention comprises multiple microcontroller program execution status modules, and under an identical clock, different microcontroller program execution status modules respectively operate at separate clock timings, which is equivalent to that multiple independent microcontrollers simultaneously operate in parallel. The parallel-processing multi-microcontroller system and the timing control method thereof of the present invention can save the portion of hardware cost resulting from adding extra hardware circuits and can effectively overcome the incapability in precisely controlling the timing resulting from timing interferences occurring during executing a program.

The embodiment of the invention discloses a method for updating a service key. The method comprises that: after a terminal is reset, the terminal reacquires the service key, and the terminal is timed according to the set time length or the decryption times of a program key; if the terminal does not reacquire the service key, when the timing result reaches the preset deletion time, the terminal deletes the original service key; when the timing result does not reach the preset deletion time, the terminal continuously uses the original service key to decrypt the data stream; and if the terminal reacquires the service key, the terminal decrypts the data stream by using a new service key. In the embodiment of the invention, by delaying the deletion time of the service key after the equipment is reset, a user has sufficient time for reacquiring the service key so that the use experience of the user is remarkably improved.

The invention provides a display driving circuit, a display driving method and a display device. The display driving method comprises the steps of: performing a timing operation on an operating stateof a display screen, and storing a corresponding timing result in an operating characteristic memory; acquiring a corresponding operating time length of a display according to the timing result; acquiring the operating time length, and determining whether a correction operation needs to be performed on a gamma lookup table; acquiring a corresponding contrast gamma value from an operating characteristic table according to the operating time length when the gamma lookup table needs to be corrected; and calculating a pre-compensation value corresponding to each pixel value according to the contrast gamma value, and updating the gamma lookup table. The display driving circuit, the display driving method and the display device select the corresponding gamma value through calculating the operating time length of the display screen, and can correct the original gamma lookup table according to the corresponding gamma value when the original gamma lookup table needs to be corrected, thereby being conductive to reducing the insufficient effect of image display caused by screen aging.

A method for validating timing violations in a testbench is provided. The method includes obtaining the timing requirements for a design under test from a first file. The timing requirements for the design may be entered as an input to a verification tool. Then, based on the timing requirements of the user, a place and route operation is performed resulting in a design layout. Following the place and route operation, timing results are obtained for the design layout. The timing results may be obtained through simulation. From the timing results, timing values are extracted at the input level so that the inputs may be driven based on those timing values. The timing values compensate for any timing violations that may have resulted from the timing models of the verification tool.