46results about How to "The comparison is accurate" patented technology

The invention discloses a method for acquiring website test data, which comprises the following steps of: receiving a request for downloading webpage resources corresponding to an address of a website, wherein the address of the website corresponds to a plurality of sets of webpage resources; according to the preset allocation rule, selecting a set of webpage resource for a user from the plurality of sets of webpage resources; returning the selected webpage resource to ensure that the webpage resource is displayed through a webpage in a browser of a client; and recording the browsing behavior of the user in the webpage, and determining corresponding data to be the website test data. The test data acquired by the method has high comparability; and when the acquired test data is used for comparing various schemes, acquired comparison results are more accurate.

The invention relates to a method and a system for acquiring test data of a website. The method comprises the steps of receiving a request for downloading a webpage resource corresponding to a websiteaddress by a website server, wherein the website address corresponds to a plurality of sets of webpage resources; selecting one set of webpage resources from the plurality of sets of webpage resources for a user according to a preset distribution rule; returning the selected webpage resources so as to display the webpage resources in a webpage in a browser of a client; and recording a browsing behavior of the user in the webpage, and determining the corresponding data into the test data of the website. According to the method and the system for acquiring the test data of the website, one website corresponds to the plurality of sets of test webpage resources; the server selects the webpage resources for the user according to the distribution rule so as to avoid the problem of great difference of visitor counts in each set of scheme; the original scheme and a comparison scheme can be simultaneously tested in the same environment, the obtained test data have relatively high comparabilityand an obtained comparison result is more accurate.

The invention discloses a high-accuracy phase frequency detector, which comprises a basic phase frequency detection unit and a rapid locking unit, wherein the basic phase frequency detection unit can be used for realizing detection of two input waveform frequencies and phases; and the rapid locking unit can be used for increasing the accuracy of the phase frequency detector. When two input waveform frequencies and phases of the phase frequency detector are consistent, the rapid locking unit does not work, and two paths of outputs of the phase frequency detector are at low levels; when two input waveform frequencies or phases of the phase frequency detector are inconsistent, the rising edge of one input waveform comes to turn corresponding output to a high level immediately, and the other output is kept at a low level; and when the rising edge of the other input waveform comes, the rapid locking unit starts working, and two outputs turn to low levels once again. The high-accuracy phase frequency detector is compact in structure, and has small phase frequency detection errors and low resource consumption.

The invention relates to an interest list pushing system based on a heterogeneous information network, and the system comprises an obtaining module which is used for obtaining the login information and keyword information of a user; an establishing module which is used for establishing an information matrix I according to the login information of the user; a determining module which is used for determining an interest list of a current user according to the information matrix and the login information; a pushing module which is used for pushing the interest list to the second user; a central processing unit which is connected with the obtaining module, the establishing module, the determining module and the pushing module and used for adjusting real-time information in the interest list inthe determining module according to an information matrix in the establishing module and pushing the interest list of the first user to the second user, In addition, due to the fact that the pushinginformation received by the second user can obtain the list which the second user is interested in, screening and filtering of the information by the user are facilitated, and the information spreading efficiency is improved.

The invention discloses a smoke generation system for calibrating accuracy of a low concentration particle test method. The smoke generation system comprises a simulation smoke flue, a dust feed device for feeding dust to the simulation smoke flue, an air supply device for supplying air to the simulation smoke flue, a humidification device for supplying steam to the simulation smoke flue, an acidadding device for supplying mixed acid to the simulation smoke flue, and a heating device for supplying heat to the simulation smoke flue, wherein the wall surface of the simulation smoke flue is provided with test holes, and parameters of smoke in the simulation smoke flue are detected by using the test holes. The smoke generation system can effectively save the cost of the low concentration particle test method and shorten the development cycle of the low concentration particle test method. Moreover, the dust feed device comprises a feed rod, a sleeve sheathed on the feed rod, and a first drive part driving the feed rod to rotate, the sleeve has an end plane vertical to the axis of the sleeve, one end of the feed rod is provided with a smooth rod and the other part is provided with a threaded rod, the end surface of the smooth rod is flush with the end plane of the sleeve, and the dust feed device can feed dust uniformly.

The invention provides a superregenerative receiver which is characterized by comprising a gain-variable low-noise amplifier, a superregenerative oscillator, an envelope detector and an RSSI (received signal strength indicator) detection circuit, wherein the superregenerative oscillator is connected with the low-noise amplifier and is used for oscillating an output signal of the low-noise amplifier; the envelope detector is connected with the superregenerative oscillator and is used for demoldulating an output signal of the superregenerative oscillator; the RSSI detection circuit is connected with the envelop detector and is used for detecting the signal intensity of an output signal of the envelop detector and sending the signal intensity to the low-noise amplifier. The low-noise amplifier in the superregenerative receiver provided by the invention can perform gain amplification according to the intensity of the received signal, and a comparison result is accurate.

The invention discloses a temperature detecting circuit comprising a temperature sensing circuit for acquiring a temperature voltage, a reference current generating circuit for acquiring a reference current with a temperature coefficient of zero, a trimming circuit for carrying out proportion-based mirror image trimming on the reference current to obtain a trimming current, a voltage generating circuit for generating a quasi-voltage and a threshold voltage corresponding to a first threshold temperature, and a comparing circuit. The comparing circuit is used for comparing the temperature voltage with the threshold voltage, outputting a first control signal when the temperature voltage is greater than the threshold voltage, and outputting a second control signal if the temperature voltage isless than or equal to the threshold voltage. According to the temperature detecting circuit provided by the invention, after generation of the reference current with the adjustable temperature coefficient, the trimming circuit and the voltage generating circuit are used for carrying out proportion-based mirror imaging on the reference current to a reference voltage circuit and a threshold voltagecircuit so as to generate a reference voltage and a threshold voltage that are not affected by the temperature change. Therefore, the comparison result of the comparison circuit is more accurate andpower consumption of the entire circuit is also reduced.

The invention relates to a de-jittering control method for an LED light source. The method comprises the following steps that: S1, multi-time sampling is carried out on output voltage values of an LED light source according to a predetermined sampling time interval so as to obtain a plurality of sampling values; variation value removing and averaging processing is carried out on the plurality of sampling values so as to obtain an average sampling value; S2, the average sampling value and a set value are compared to obtain a comparison result; and S3, a duty ratio of a PWM circuit is determined according to the comparison result, wherein the PWM circuit is used for adjusting currents of the LED light source. In addition, the invention also relates to a de-jittering control circuit for an LED light source. According to the de-jittering control method for an LED light source and a circuit thereof in the invention, variation value removing and averaging processing is carried out on multi-time sampling values, so that frequency for adjusting currents of an LED light source is reduced; therefore, up-and-down fluctuation of current values around a set value can be reduced on the basis that constant current drive of the LED light source is not influenced, so that tiny flashing and slight jittering of light intensity of the LED light source can be reduced.

The invention discloses a multi-version parallel upgrading control method comprising steps that a server receives a version upgrading request sent by a client; current version information related to the client and carried in the version upgrading request is read; an upgraded version stored in the server is matched with the current version information of the client to acquire at least one upgraded version; according to upgraded version numbers, clients with the same number as the clients requiring upgrade are selected to be a sample of each upgraded version; the selected number is named as a start margin of each sample; upgrade available margin of each sample is determined in parallel; and when enough sample upgrade margin exists, a corresponding upgraded version and related upgrading information are returned to the client giving the request in the sample. Multi-versions can be upgraded at the same time; and linear increase of version upgrading time can be avoided, so version upgrading time can be shortened.

The invention provides a signal acquisition method and a device having multi-channel signal acquisition. An analogue signal, which is amplified through a signal amplification module, is acquired through an MCU module. A compared digital signal is obtained through a signal comparison module. An acquisition manner of combination between a digital signal and the analogue signal is achieved so that a problem that only the digital signal is acquired and an analogue semaphore cannot be obtained is avoided. Rapid acquisition of a digital circuit and complete acquisition of the analogue signal are both achieved and are fully combined with each other. The method is applied in infrared touching and can increase a scanning speed of the infrared touching so that convenience in production is greatly improved.

The invention relates to Internet of Things monitoring and early warning equipment. The equipment comprises an infrared induction module, a storage module, a comparison module, an alarm module, a wireless transmission module, a receiving module and a voice playing module, wherein the storage module is connected with the infrared induction module; the comparison module is connected with the storagemodule, standard body temperature data is set in the comparison module, and a comparison result is obtained according to the body temperature data in the storage module and the standard body temperature data; the alarm module is connected with the comparison module, and when the comparison result is abnormal, the alarm module sends an alarm instruction; the wireless transmission module is connected with the alarm module and transmits the alarm instruction to a third-party network platform; the receiving module is connected with the wireless transmission module; and the voice playing module isconnected with the receiving module, and when the infrared induction module monitors the personnel, professional suggestions are played in a voice mode. Supervision and checking are not needed, and manpower supervision is liberated.