319results about How to "Reliable calculation" patented technology

The invention discloses an infrared touch screen and multi-point touch positioning method. That is, at least one touch-screen direction detection, a set of infrared emission scanning circuit corresponding two infrared receiver scanning circuit; a set of infrared emission scanning circuit of an infrared launching the beam of light emitted by the components of a scanning infrared receiver circuit in an infrared receiver components of the receiver at the same time, in the receiving area also receive another set of infrared scanning circuit components of the receiver to receive an infrared detection in infrared touch screen The algorithm process that could be used to determine in advance the scope of touch point touch-point detection algorithm module. The present invention generally use the touch position detection algorithm is a touch location coordinates point to touch another pre-detection algorithm to determine touch point in the region, in combination with detection algorithm is usually the touch location coordinates. The invention can identify two or more touch operation, while more effective identification can touch position.

This invention discloses an infrared touching screen and the multi-spot touching localization method, in an examination direction, the ray of light send out by the infrared emission part on the infrared emission sweep circuit not only can be received at least by one infrared sweep circuit's infrared receive part which is vertical to the part's position, but may also be received by another inclined relative infrared receive sweep circuit's infrared receive part at least which is deviated vertical to the part's position. Thus, in a scanning period, the ray of light send out by an infrared emission part may be received by two different position infrared receive parts in the different time, through a checking calculation between touching possible coordinate figure and location parameter, then may determine each touching position data, this invention realizes the multi-spot localization scanning examination method to be simple, the touching position data computation convenient, accurate, reliable, the circuit wafer type is few, the shape is rule, easy to realize the large scale production, does not have the complex succession corresponding relationships, easy to realize.

A helmet position measuring system for use in a predefined environment. The system includes a helmet-mounted illumination system for directing electromagnetic radiation of one or more wavelength from the helmet in one or more range of angles, a set of three or more passive reflectors deployed at fixed positions in the predefined environment to reflect electromagnetic radiation from the illumination system, a helmet-mounted imaging system sensitive to the one or more wavelength for deriving images of part of the predefined environment including electromagnetic radiation reflected from the reflectors, and a processing system associated with the imaging system for processing the images to identify regions of the images corresponding to the reflectors and hence to determine information relating to a position of the helmet within the predefined environment.

Embodiments for method and a system for an on online auction system involving a computer server is closed. Values representing a relationship between a seller and a plurality of bidders are determined based on social connections of the seller and social connections of the bidders. An auction method is selected based on the values representing a relationship between the seller and the bidders. The selected auction method is performed for the purpose of selling an item of the seller at a winning bid quoted by any of the bidders.

A rotation matrix and a translation vector between a basic camera (12) and a reference camera (14) are read out from a parameter storage section (26). At a projection conversion matrix calculating section (28), a projection conversion matrix capable of overlapping the road plane area included in images picked up by the basic camera (12) and the reference camera (14) is calculated by using the rotation matrix and the translation vector.

The invention relates to an infrared touch screen, wherein on at least on detection direction, an infrared emitter and two infrared receivers are deflected toward the center of a touch screen to inverse the directions of the infrared emitter and the infrared receivers to form crossed relation. The invention further provides a multipoint touch positioning method of the infrared touch screen, which comprises (a), respectively initializing the infrared receiver vertical with the infrared emitter and the infrared receiver inclined and opposite with the infrared emitter, (b), vertically scanning and detecting, comparing with vertical initialized value, (c), calculating the possible position coordinate of each touch point, (d), processing inclined scanning detection to be compared with inclined initialized value, (e), determining the relation expression between the real coordinates X, Y of the touch point, checking the possible coordinates calculated in the step (c) in the relation expression, and determining the position coordinate of each touch point. The invention has simple structure and low cost, which can realize accuracy multipoint touch positioning.

The invention discloses a method for detecting and repairing a cycle slip by utilizing a BeiDou three-frequency observed quantity. The method mainly comprises the following steps of: 1, performing linear combination by utilizing the three-frequency observed quantity under the condition of providing a three-frequency signal by a BeiDou satellite navigation system, and constructing a combination noise detection quantity by selecting proper combination coefficients to detect the cycle slip; 2, after the cycle slip is detected, calculating and screening to obtain three sets of combination coefficients with superior performance in a pseudo-range carrier phase combination method, and calculating and repairing the cycle slip by utilizing the pseudo-range carrier phase combination method; and 3, finally, performing verification on a cycle-slip repairing effect by utilizing the combination noise detection quantity. The method for detecting and repairing the cycle slip is not related to the motion state of a carrier, can be used for reliably detecting and repairing the minimum cycle slip of which the time of losing lock reaches up to 30 seconds and can be used for detecting and repairing the cycle slip by the zero-difference, single-difference or double-difference carrier phase observed quantity when static measurement or dynamic measurement is performed.

The invention relates to a method for synchronizing a first clock C to a reference clock A, the first clock C being connected to said reference clock A via a processing unit B. The invention moreover relates to a processing unit B and to a synchronization system. In order to enable a synchronization of said first clock C to said reference clock A via said processing, unti B. it is proposed that the processing unit B generates a correction message cmsg for the first clock C based on timestamps exchanged between the processing unit B and the reference clock A, which exchanged of timestamps is triggered by clock pulses cclk received in the processing unit B from the first clock C.

The invention relates to a traffic lane local geometry and vehicle location estimation method based on machine vision in the field of intelligent vehicle. It dose edge testing to the picture of the vehicle front road, uses the distorted mode of the lane line of picture coordinate and maximum probability estimator to compute the distorted mode parameter, uses graining group optimization algorithm to compute the maximum probability estimator and combines the camera parameter and the maximum probability estimator to compute the lane width and twist, the distance between the vehicle and the lane center and the angle between the vehicle center line and the lane center line.

A travel time information providing apparatus includes a probability distribution storage unit configured to store first probability distribution data which expresses an embarkation waiting time for each location where the waiting time occurs and second probability distribution data which expresses a travel time for each location where the travel time occurs; a route acquiring unit configured to acquire a route connecting a point of origin and a destination; a travel time calculating unit configured to calculate a probability distribution of a total travel time by convoluting all probability distribution data corresponding to an embarkation waiting time which occurs on the route and a travel time which occurs on the route; and an information providing unit configured to determine an estimated travel time based on the calculated probability distribution, and output the estimated travel time.

The invention provides a method for confirming depressurizing distribution of a single-rack reversible cold-rolling mill, which comprises the following steps: assigning a scale factor according to original data of a steel coil, equipment parameters and technological requirements of a rolling mill, and a given load, and then calculating rolling technological parameters according to a mathematical model of rolling technology; performing limitation check on equipment capacity during the calculating process; if the limitation is exceeded, performing correcting calculation on the transfinite technological parameters; taking different depressurizing distribution adjusting strategies for different technological conditions and performing iterative computations till an arithmetic convergence condition is met; if the maximum iterations of a system is exceeded or the arithmetic convergence condition is not met, displaying an error message on a frame and prompting an operator to modify total rolling times or calculate again after tension distribution, till obtaining satisfied depressurizing distribution; and lastly, storing the depressurizing distribution in a database so as to prepare data for a to-be-set computation model.

The invention discloses an insulation resistance detection circuit and an insulation resistance detection method. The insulation resistance detection circuit comprises a positive busbar-to-earth voltage sampling circuit, which is used for sampling positive busbar-to-earth voltage; a positive busbar-to-earth voltage amplifying circuit, which is used for amplifying the sampled positive busbar-to-earth voltage, and comprises a first primary amplifying circuit and a first secondary amplifying circuit; a negative busbar-to-earth voltage sampling circuit, which is used for sampling negative busbar-to-earth voltage; a negative busbar-to-earth voltage amplifying circuit, which is used for amplifying the sampled negative busbar-to-earth voltage, and comprises a second primary amplifying circuit and a second secondary amplifying circuit; and a state switching circuit, which is used to switch connection between a positive busbar and a grounding point, connection between a negative busbar and the grounding point, and connection between earth and the grounding point to enable the insulation resistance detection circuit to be in different working states.

The invention discloses a technology which realizes distortion compensation by using triple smoothing spline curve to perform modeling and compensating on barrel distortion caused by a wide-angle lens, comprising the following steps: 1) manufacturing a concentric-circle template, and making a cross at the center of the concentric circle; 2) aligning and shooting the concentric-circle template image to obtain the ideal radius value and the actual-measurement radius value of the template; 3) according to two groups of radius values, using a natural spline curve to construct a forward spline curve and a backward spline curve; 4) using the forward spline curve to calculate and restore the size of the image, using the backward spline curve, and establishing a distortion compensation mapping table; and 5) according to the mapping table, using bilinear interpolation algorithm to calculate and realize distortion compensation. The invention has a plurality of criteria points to calculate the radius of the concentric circle, so that the invention has high radius calculation precision and strong anti-noise capability; the invention adopts the spline curve to model and compensate barrel distortion and has simple and reliable calculation; according to modeling results, the invention manufactures a distortion compensation mapping table to realize efficient and effective distortion compensation in real time.

The invention discloses an intelligent control strobe light supplementing method and a light supplementing device of a camera. The method includes that step one, a luminance signal of continuous snapshot images is calculated by the camera according to a snapshot signal to obtain an average luminance value, whether a light supplementing lamp is switched on or not is determined according to high front lighting luminance threshold value, if the average luminance value is higher than the threshold value, an on-off signal is output to the light supplementing lamp, a power source of the light supplementing lamp is automatically turned off, and if the average luminance value is lower than or equal to the threshold value, the power source of the light supplementing lamp is automatically turned on; and step two, when the light supplementing lamp is switched on, the average luminance value of the snapshot images is calculated again, if the average luminance value is in the optimal luminance range of the snapshot images, the luminance signal of the camera and a synchronization pulse signal of the light supplementing lamp are not required to be adjusted, if the average luminance value is lower or higher than the optimal luminance range of the snapshot images, the output increased or decreased luminance signal of the camera and the increased or decreased synchronization pulse signal of the light supplementing lamp are adjusted, and the adjusted average luminance value is in the optimal luminance range of the snapshot images. By means of the intelligent control strobe light supplementing method and the light supplementing device of the camera, the light supplementing effect and efficiency are improved.

Signals are fetched out from winding at secondary side of current transformer on each line so as to obtain detected currents in triphase after voltage conversion and isolation of high-ohmic resistor. Threshold measuring detected currents in triphase is carried out in order to determine fault lines, and functions of high-speed data correction and A/D conversion are started up. Characteristic data of defective form of traveling wave are picked up from the A/D converted data, which are labeled with time mark by high precision GPS device. Then, being sorted and matched according to lines, the labeled data are stored to memory in computer. Fault category is determined and fault distance is calculated out by using the said computer and dedicated application software to analyze and calculate characteristic data after multiple refractions and reflections in each line as well as time difference. The invention raises location accuracy, reliability, practibility and economical efficiency.

The embodiment of the invention relates to a method for processing a writing request of a redundant array of a hybrid magnetic disc, a controller and a storage system thereof. The method comprises the following steps: writing new written data into a temporary storage stripe corresponding to a target stripe, wherein the temporary storage stripe is positioned in a primary redundant array, and the target stripe is positioned in a secondary redundant array; acquiring verification information according to the new written data and data in the target stripe, writing the verification information into a verification stripping unit in the temporary storage stripe; and writing the data of the temporary storage stripe into the target stripe. The embodiment of the invention can avoid the problem of write holes occurring in data writing operation in the magnetic disc redundant array, improves the writing operation efficiency of the magnetic disc redundant array, and improves the secure performance of stored data of the magnetic disc redundant array.

The invention discloses a soil testing and formulated fertilization method for use in environment-friendly cultivation of cucumber. The method comprises the following steps: detecting the soil of a place of origin as well as the contents of organic matters, alkali-hydrolyzable nitrogen, rapidly available phosphorus and rapidly available potassium contained in organic fertilizers; detecting target yield, reasonably selecting the utilization ratio of each nutrient in soil during seasonable production of cucumber, and selecting the utilization ratio of each nutrient in applied fertilizers during seasonable production of cucumber; determining the absorption of each known major nutrient by cucumber; selecting fertilizers according to the pH value of soil and the fertilizer needing characteristics of crops; calculating and determining the needed amounts of a main fertilizer and an auxiliary fertilizer; determining a formulated fertilization scheme; and determining a fertilization method. The calculation of the formulated fertilization amount is more accurate and more reliable than that in the prior art; by considering the types and characteristics of varieties, the target yield is more consistent with practical situations; the nutrient amount of soil is calculated accurately and reliably; the fertilizers are selected under the full consideration of the soil acidity and alkalinity as well as the requirement of cucumber on fertilizer characteristics; by adopting the fertilization method, labor force is reduced, and the production cost is lowered.

An apparatus in a machine for processing printing material has a register sensor for register measurement between at least two color separations of a printed image printed above one another on a printing material. The register sensor registers optically deviations between two color separations lying one above the other on the printing material and forwards the deviations onto a computer. The apparatus includes register marks to be measured by the apparatus. The apparatus is distinguished in that the register sensor contains at least one photodiode having at least two quadrants, and in that the largely rectangular evaluation areas of the photodiode are aligned obliquely in relation to the edges of the conveyed printing material.

Control data for a main deflector is calculated based on position data that specifies the position of a region to be irradiated with the electron beam on the subfield, data on the number of all beam shots on the subfield, data on a time required for all the beam shots, and stage data that specifies the position of the stage. When the number of beam shots on one of the divided subfield sections reaches the obtained number of the beam shots on each of the divided subfield sections, a writing process proceed to a writing operation to be performed on another one of the divided subfield sections based on the direction of the movement of the stage.

A method of selecting an antenna for ranging detection in an orthogonal frequency division multiple access system, the method including: receiving at least one ranging symbol from the antenna; and determining whether to select the antenna, by correlation computing the received ranging symbol in a time domain.