CN100429491C - Anti-noise device and method for measuring temperature - Google Patents

Anti-noise device and method for measuring temperature Download PDF

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CN100429491C
CN100429491C CN 200510064693 CN200510064693A CN100429491C CN 100429491 C CN100429491 C CN 100429491C CN 200510064693 CN200510064693 CN 200510064693 CN 200510064693 A CN200510064693 A CN 200510064693A CN 100429491 C CN100429491 C CN 100429491C
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filter
filtered signal
temperature measurement
anti
noise
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CN 200510064693
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CN1854699A (en )
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曾耀辉
李宗学
林恭安
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精拓科技股份有限公司
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Abstract

本发明涉及一种温度测量的抗噪声的装置,包括有:第一滤波器,用以将一系列的温度测量数据进行滤波,以输出第一滤波信号;第二滤波器,接收该第一滤波信号,并输出第二滤波信号;比较器,比较该第一滤波信号及该第二滤波信号;以及计数器,与比较器连接,以进行计数;当第一滤波信号与第二滤波信号持续发生差异时,计数器输出致能信号给第二滤波器,使第二滤波器以第一滤波信号作为第二滤波信号。 The present invention relates to an anti-noise device of temperature measurement, comprising: a first filter for the series of temperature measurement data filtering, to output a first filtered signal; a second filter, receives the first filtered signal, and outputting a second filtered signal; a comparator for comparing the first filtered signal and the second filtered signal; and a counter, and a comparator connected to count; when the difference persists first filtered signal and the second filtered signal when the counter output enable signal to the second filter, the second filter to the first filtered signal as a second filtered signal. 本发明以不同阶段的滤波器之间关系与动作,去快速反应待测物的温度,避免待测物温度瞬间过高而保护不及的问题。 The present invention in different stages of the relationship between the filter operation, quick response to the temperature of the analyte, the analyte to avoid excessively high thermal transient protection is less.

Description

温度测量的抗噪声装置与方法 Anti-noise temperature measurement device and method

技术领域 FIELD

本发明涉及一种抗噪声的装置与方法,特别是涉及一种应用于温度测量的抗噪声装置与方法。 The present invention relates to apparatus and method for anti-noise, particularly to a device and method for anti-noise measure is applied to the temperature.

背景技术 Background technique

目前计算机系统所使用的中央处理器(CPU)已达数GHz等级,而绘图芯片(GPU)处理速度也越来越快,因此,计算机系统所产生的热也越来越多。 The computer system currently used by the central processor (CPU) has reached the level of several GHz, the graphics chip (GPU) faster and faster processing speed, and therefore, heat generated by the computer system more and more. 所以大部分的主机板、显卡、笔记本计算机都会去测量CPU/GPU的温度,以进行系统的温度控制。 Therefore, most of the motherboard, the graphics, the computer will be to measure the temperature of the CPU / GPU to perform the temperature control system. 目前最常应用的温度测量技术主要有两种:单电流源(single current source)及双电流源(Dual current source)。 Temperature measuring technique most commonly there are two main applications: a single current source (single current source) and two current sources (Dual current source).

单电流源主要是应用于测量热敏电阻,然因其置放于CPU/GPU等待测物的外部,其温度仍低于待测物内部温度,无法正确反应待测物的实际温度。 A single current source is mainly used to measure the thermistor, and then placed in its external CPU / GPU waiting measured object, which is still lower than the temperature of the internal temperature of the object to be detected, the actual temperature of the reaction can not correct the analyte. 若用以测量晶体管跟CPU/GPU内部的热感二极管(thermal diode)尚须针对不同制造厂商生产、不同制作的CPU/GPU调整补偿值,将增加电路设计上的复杂度。 If for measuring the thermal diode with CPU / internal transistor GPU (thermal diode) yet different manufacturers of production, the production of different CPU / GPU adjust the compensation value will increase the complexity of the circuit design.

双电流源的测量技术是通过送出两次不同电流来测量待测物的AVBE,例如通过CPU/GPU内建的热感二极管而正确地测量CPU/GPU的温度,从而消除因不同制造厂商生产、不同制作方法的CPU/GPU须调整温度对应补偿值等制作参数所造成的影响,即可以排除掉以往使用单电流源测量技术时的缺点,并且得到比较高的精确性。 Measurement dual current source is measured by sending two different currents AVBE analyte, for example, a temperature properly CPU / GPU measured by the CPU / GPU thermal diode built-in, so as to eliminate the production of different manufacturers, different methods for CPU / GPU shall adjust the temperature compensation value corresponding to the impact caused by the other production parameters, which can exclude the conventional disadvantages of using a single current source measurement techniques, and the resulting relatively high accuracy.

然而,以双电流源的方式测量温度时,每相差摄氏一度时,所测得的AVBe 的值只会产生几微伏电压(uV)的差异,此几微伏电压的差异即会影响对CPU/GPU等待测物温度的掌控精确度,而如何精准测量如此小的电压将会面临噪声干扰的技术问题。 However, as to measure the temperature of the double current source, each difference of one degree Celsius, AVBe value of the measured voltage only a difference of a few microvolts (uV) of this difference, i.e., a few micro volts will affect on the CPU / GPU wait control the temperature of the measurement accuracy, and accurate measurement of how such a small voltage will be faced with the technical problem of noise interference.

为了能有效过滤噪声,目前的做法是将感测到的数据经过几级滤波器将噪声消除,若滤波器使用的阶数越多则滤波效果较好。 In order to effectively filter the noise, the current practice is sensed through several stages of data noise elimination filter, if the more the order of the filter used in the filtering better. 然而,另一方面若滤波器使用过多则无法迅速地反应待测物温度的瞬间变化,可能会发生待测物温度过高,但系统无法实时反应而造成待测物的损坏。 However, on the other hand, if the filter is not used too rapidly the reaction temperature transient changes analyte, the analyte may occur high temperature, but the system does not reflect the real analyte damage.

发明内容 SUMMARY

本发明所要解决的技术问题在于提供一种温度测量的抗噪声装置与方法, 以解决先前技术所存在的问题或缺点,以不同阶段的滤波器之间关系与动作, 去快速反应待测物的温度,避免待测物温度瞬间过高而保护不及的问题。 The present invention solves the technical problem is to provide a method of anti-noise and a temperature measuring means to solve the prior art problems or disadvantages, to different stages of the relationship between the filter operation, quick response to the analyte temperature to avoid excessively high analyte instantaneous temperature less protection problems.

为了实现上述目的,本发明提供了一种温度测量的抗噪声的装置,其^P点在于,包括有: 一第一滤波器,用以将一系列的温度测量数据进行滤波,以输出一第一滤波信号; 一第二滤波器,接收该第一滤波信号,并输出一第二滤波信号; 一比较器,比较该第一滤波信号及该第二滤波信号;以及一计数器,与该比较器连接,以进行一计数;当该第一滤波信号与该第二滤波信号持续发生差异时,该计数器输出一致能信号给该第二滤波器,使该第二滤波器以该第一滤波信号作为该第二滤波信号。 To achieve the above object, the present invention provides an apparatus for measuring the temperature of an anti-noise, which is ^ P in that, comprising: a first filter for the series of temperature measurement data is filtered to a first output a filtered signal; a second filter, receives the first filtered signal and outputting a second filtered signal; a comparator, comparing the first filtered signal and the second filtered signal; and a counter, the comparator connection, to perform a count; when the difference persists first filtered signal and the second filtered signal, the counter enabling signal output to the second filter to the second filter to the first filtered signal as the second filtered signal.

上述温度测量的抗噪声装置,其特点在于,该第一滤波器为一低通滤波器。 Anti-noise device according to the measured temperature, characterized in that the first filter is a low pass filter. 上述温度测量的抗噪声装置,其特点在于,该第一滤波器为一梳形滤波器。 Anti-noise device according to the measured temperature, characterized in that the first filter is a comb filter. 上述温度测量的抗噪声装置,其特点在于,该第一滤波器为一有限脉冲响应滤波器。 Anti-noise device according to the measured temperature, characterized in that the first filter is a finite impulse response filter.

上述温度测量的抗噪声装置,其特点在于,该第一滤波器为一无限脉冲响应滤波器。 Anti-noise device according to the measured temperature, characterized in that the first filter is an infinite impulse response filter.

上述温度测量的抗噪声装置,其特点在于,该第一滤波器包括有: 一第一加法器,将该温度测量数据与前一温度测量数据相加; 一第一缓存器,与该第一加法器连接,暂存该第一加法器的相加结果; 一第一除法器,与该第一缓存器连接,将该第一缓存器中的数据除以一第一数值,以取得一第一平均值作为该第一滤波信号;以及一第一乘法器,将该第一除法器输出的数据乘以该第一数值减l,作为该前一温度测量数据。 Anti-noise device according to the measured temperature, characterized in that the first filter comprises: a first adder, the temperature measurement data is added to the previous temperature measurement data; a first register, the first the adder is connected, temporarily storing the addition result of the first adder; a first divider, connected to the first buffer, the data is divided by a first buffer a first value to obtain a first as a mean value of the first filtered signal; and a first multiplier, the data of the first divider output is multiplied by the first value Save L, as the previous temperature measurement data.

上述温度测量的抗噪声装置,其特点在于,该第二滤波器为一低通滤波器。 Anti-noise device according to the measured temperature, characterized in that the second filter is a low pass filter. 上述温度测量的抗噪声装置,其特点在于,该第二滤波器为一梳形滤波器。 Anti-noise device according to the measured temperature, characterized in that the second filter is a comb filter. 上述温度测量的抗噪声装置,其特点在于,该第二滤波器为一有限脉冲响应滤波器。 Anti-noise device according to the measured temperature, characterized in that the second filter is a finite impulse response filter. 上述温度测量的抗噪声装置,其特点在于,该第二滤波器为一无限脉冲响应滤波器。 Anti-noise device according to the measured temperature, characterized in that the second filter is an infinite impulse response filter.

上述温度测量的抗噪声装置,其特点在于,该第二滤波器包括有: 一第二加法器,将该第一滤波信号与前一温度测量数据相加; 一多任务器,与该第二加法器连接,以传递该第二加法器的相加结果; 一第二缓存器,与该多任务器连接,以暂存由该多任务器传递的该第二加法器的相加结果; 一第二除法器, 与该缓存器连接,将该第二缓存器中的数据除以一第二数值,以取得一第二平均值作为该第二滤波信号; 一第二乘法器,将该第二除法器输出的数据乘以该第二数值减l,作为该前一温度测量数据;以及一第三乘法器,当该多任务器接收到该致能信号时,将该第一滤波信号乘以该第二数值。 Anti-noise device according to the measured temperature, characterized in that, the second filter comprises: a second adder, the first filtered signal and summing the previous temperature measurement data; a multiplexer, the second an adder connected to transmit the addition result to the second adder; a second buffer connected to the multiplexer, temporarily storing the addition result to the second adder delivered by said multiplexer; a a second divider connected to the register, the data in the second buffer divided by a second value to obtain a second average value as the second filtered signal; a second multiplier, the first data two divider output is multiplied by the second subtraction value L, the former as a temperature measurement data; a third multiplier, and, when the multiplexer receives the enable signal, the first filtered signal by in this second value.

本发明还提供一种温度测量的抗噪声方法,其特点在于,包括有:取得一第一滤波信号以及一通过对该第一滤波信号再次进行滤波得到的第二滤波信号;比较该第一滤波信号是否大于或小于该第二滤波信号,并进行计数;以及当大于一预定计数时,且该第一滤波信号与该第二滤波信号持续发生差异时, 以该第一滤波信号作为第二滤波信号。 The present invention further provides a method for anti-noise temperature measurement, characterized in that, comprising: obtaining a first filtered signal and a second filtered signal by the first filtered signal obtained by filtering again; comparing the first filter if the signal is greater than or less than the second filtered signal, and counts; and when greater than a predetermined count, and the difference between the first filtered signal persists and the second filtered signal to the first filtered signal as a second filter signal.

上述温度测量的抗噪声方法,其特点在于,该第一滤波信号由一第一滤波器取得。 The method of noise measurement of the temperature, characterized in that the first filtered signal acquired by a first filter.

上述温度测量的抗噪声方法,其特点在于,该第一滤波器为一低通滤波器。 The method of noise measurement of the temperature, characterized in that the first filter is a low pass filter. 上述温度测量的抗噪声方法,其特点在于,该第二滤波信号由一第二滤波器取得。 The method of noise measurement of the temperature, characterized in that, the second filtered signal acquired by a second filter.

上述温度测量的抗噪声方法,其特点在于,该第二滤波器为一低通滤波器。 The method of noise measurement of the temperature, characterized in that the second filter is a low pass filter. 本发明的功效,在于以不同阶段的滤波器之间关系与动作,去快速反应待 Efficacy of the invention, consists in the different stages of the relationship between the filter operation, quick response to be

测物的温度,避免待测物温度瞬间过高而保护不及的问题,并且可应用于各种 Was measured temperature, instantaneous temperature to avoid excessively high analyte less protection, and can be applied to various

需要测量温度的信息产品,例如台式计算机、笔记本计算机、服务器、显卡等。 We need to measure the temperature information products, such as desktop computers, notebook computers, servers, graphic cards and so on. 以下结合附图和具体实施例对本发明进行详细描述,但不作为对本发明的限定。 The present invention will be described in detail in conjunction with the accompanying drawings and the specific embodiments, but not limit the present invention.

附图说明 BRIEF DESCRIPTION

图1为本发明所揭露的温度测量的抗噪声装置的方块图; A block diagram of an anti-noise device according to the present invention disclosed in FIG temperature measurement;

图2为本发明所揭露的温度测量的抗噪声装置第一滤波器的方块图; Anti-noise device of the present invention disclosed in FIG 2 the measured temperature of the first filter block diagram;

图3为本发明所揭露的温度测量的抗噪声装置第二滤波器的方块图;图4为本发明所揭露的温度测量的抗噪声方法的流程图;以及 A block diagram of a second anti-noise filter of the temperature measuring apparatus of the present invention disclosed in FIG. 3; and a flowchart of a method of temperature measurement noise of the present invention disclosed in FIG. 4; and

图5为本发明所揭露的温度测量的抗噪声装置及方法的技术效果示意图。 FIG 5 is a technical effect of the invention disclosed apparatus and method for temperature measurement of the anti-noise. FIG.

其中, 附图标记: Wherein, reference numerals:

10 第一滤波器 The first filter 10

20 第二滤波器 The second filter 20

30 比较器 30 comparator

40 计数器 40 counters

11 第一加法器 A first adder 11

12 第一缓存器 12 first buffer

13 第一除法器 A first divider 13

14 第一乘法器 14 first multiplier

21 第二加法器 A second adder 21

22 多任务器 More than 22 mission is

23 第二缓存器 23 second buffer

24 第二除法器 A second divider 24

25 第二乘法器 25 second multiplier

26 第三乘法器 The third multiplier 26

61 第一滤波信号 61 first filtered signal

62 第二滤波信号 62 of the second filtered signal

63 第二滤波信号 63 of the second filtered signal

具体实施方式 detailed description

请参考图1,为本发明所揭露温度测量的抗噪声装置的一实施例方块图。 Please refer to FIG. 1, a block diagram of an embodiment of the anti-noise temperature measurement apparatus disclosed in the present invention.

其包括有一第一滤波器10、 一第二滤波器20、 一比较器30以及一计数器40。 Which comprises a first filter 10, a second filter 20, a comparator 30 and a counter 40. 详细组成及运作说明如下。 Details of the constitution and operation are described below.

第一滤波器IO用以接收一系列的温度测量数据,并对该温度测量数据进行滤波,以输出一第一滤波信号。 A first filter for receiving a series of IO temperature measurement data, and filtering the temperature measurement data to output a first filtered signal. 第一滤波器10为一种低通滤波器,因此, 当温度测量数据发生较大波动时,经过第一滤波器10滤波后,使这些数据收敛于某一温度区间变动,而此变动区间小于温度测量数据的变动区间。 The first filter is a low-pass filter 10, and therefore, when the measured temperature data generating large fluctuations, after filtering the first filter 10, so that the data to converge to a temperature change interval, and this variation range is less than temperature variation interval measurement data.

第二滤波器20与第一滤波器10连接,以对第一滤波信号进行滤波,并产生一第二滤波信号。 The second filter 2010 is connected to the first filter to filter the first filtered signal and generates a second filtered signal. 第二滤波器20为一种低通滤波器,因此,第二滤波f言号 The second filter 20 is a low-pass filter, and therefore, the second filter made f Number

的变动比第一滤波信号更小。 Fluctuation is smaller than a first filtered signal. 通过第一滤波器10与第二滤波器20的设计,可 By designing the first filter 10 and second filter 20, may be

降低噪声对温度测量数据的干扰,从而减少温度测量数据的变动,而使所测量到的温度维持在一较小的变动区间。 To reduce the noise of temperature measurement data, thereby reducing the temperature variation of the measurement data, so that the measured temperature is maintained at a relatively small variation range.

比较器30与第一滤波器10及第二滤波器20的输出耦接,以比较第一滤波信号及第二滤波信号。 The output of comparator 30 is coupled to the first filter 10 and second filter 20 is connected to a first filtered comparison signal and the second filtered signal. 计数器40与比较器30的输出端连接,以接收比较器30的输出结果,并进行计数。 The counter 40 is connected to the output of comparator 30, to receive the output of the comparator 30, and counted. 当第一滤波信号持续大于或小于第二滤波信号, 则将计数次数加1, 一旦第一滤波信号并不是持续大于或小于第二滤波信号, 则计数器会归零清除已计数的值并重新计数。 When the value of the first filtered signal for greater than or less than the second filtered signal, plus 1 will count the number of times, once the first filtered signal is greater than or less than a second is not continuous filtered signal, the counter will clear the count to zero and re-counting .

理论上,若温度为一常温时,第一滤波信号应无法持续大于或小于第二滤波信号。 In theory, if the temperature is a normal temperature, a first filtered signal should not continue more or less than the second filtered signal. 依此原理, 一旦温度剧烈变化,经计数器40若干次的计数后,第二滤波器20输出的第二滤波信号仍持续大于或小于第一滤波信号时,.此时计数器40便输出一致能信号,致使第二滤波器20直接以第一滤波信号为第二滤波信号,而不进行滤波。 So principle, once the temperature changes dramatically after several counter 40 counts, the second filtered signal output from the second filter 20 continues more or less than the first filtered signal. The counter 40 will output enable signal , causes the second filter 20 directly to the first filtered signal to a second filtered signal, regardless of the filter. 通过比较第一滤波信号及第二滤波信号的设计,使得第二滤波器20所输出的第二滤波信号可快速地追随所测量的温度,以提高测量温度的正确性,同时保持其抗噪声的效能。 By design is first filtered signal and the second filtered signal, the second filter such that a second filtered output signal 20 may quickly follow the measured temperature, in order to improve the measurement accuracy of the temperature, while maintaining its anti-noise efficacy.

请参考图2,为第一滤波器方块图的一实施例,其为一种低通滤波器。 Please refer to FIG. 2, is a block diagram of a first embodiment of filter, which is a low-pass filter. 其包括有第一加法器11、第一缓存器12、第一除法器13以及第一乘法器14。 Which comprises a first adder 11, a first buffer 12, a first divider 13 and a multiplier 14 first. 详细组成及运作说明如下。 Details of the constitution and operation are described below.

第一加法器11用以将目前的温度测量数据与历史数据相加,并输入到第一缓存器12中暂存。 A first adder 11 to the current temperature measurement data and historical data are added, and input to the first buffer 12 temporarily stored. 第一除法器13则将第一缓存器12中的数据除以一第一数值N,以取得第一平均值,此即为第一滤波信号。 First data divider 12 in the first buffer 13 will be a first value divided by N, to obtain a first average value, that is, for a first filtered signal. 第一乘法器14则将第一除法器13中的数据乘以第一数值N减1。 The data in a first multiplier 13 will be the first divider 14 is multiplied by a first value N is decremented by one. 因此,通过第一乘法器14的回路, 使得当温度数据变动时,此控制回路可縮小温度数据的变动范围。 Thus, by the first multiplier circuit 14, such that when the temperature fluctuation data, this control circuit can reduce the variation range of the temperature data.

除了图2的实施例之外,第一滤波器10也可采用梳形滤波器(comb filter)、或有限脉冲响应滤波器(FIR)或无限脉冲响应滤波器(IIR)。 In addition to the embodiment of FIG. 2, the first filter 10 may also be employed comb filter (comb filter), or a finite impulse response (FIR) filter or infinite impulse response filter (IIR).

请参考图3,为第二滤波器方块图的一实施例。 Please refer to FIG. 3, the filter is a second embodiment of a block diagram. 其包括有第二加法器21、 多任务器22、第二缓存器23、第二除法器24、第二乘法器25、以及第三乘法器26。 Which includes a second adder 21, multiplexer 22, second buffer 23, second divider 24, a second multiplier 25, and a third multiplier 26. 详细组成及运作说明如下。 Details of the constitution and operation are described below.

第二加法器21用以将第一滤波信号与历史数据相加,并输入到第二缓存器23中暂存,当处于正常滤波状态时,第二加法器21所输出的信号直接通过 A second adder 21 for the first filtered signal and summing the historical data, and input to the second buffer 23 temporarily stores, when the filter is in a normal state, a second adder 21 outputs a signal directly

多任务器22而传送到第二缓存器23。 Multiplexer 22 to the second register 23. 第二除法器24则将第二缓存器23中的数据除以第二数值M,以取得第二平均值,此即为第二滤波信号。 Second data divider 23 in the second register 24 will be divided by the second value M, to obtain a second average value, that is, for the second filtered signal. 第二乘法器25则将第二除法器24中的数据乘以第二数值M减1。 24 the data in the second multiplier 25 will be the second divider by a second value of M minus 1. 因此,当温度数据变动时,此控制回路可縮小温度数据的变动范围。 Thus, when the temperature fluctuation data, this control circuit can reduce the variation range of the temperature data.

多任务器22为一对二多任务器, 一输入端与第二加法器21连接,另一输入端与第三乘法器26连接,多任务器22另与计数器40相接,当计数器40 计数到一定预定计数时,输出一致能信号给多任务器22,使得第一滤波信号不通过第二加法器21而直接由第三乘法器26乘以第二数值M后,再由第二除法器24除以第二数值M后输出,也就是说,当计数器40计数到一定预定计数时,而此时通过比较器30比较后第一滤波信号与第二滤波信号仍有差异吋, 即第二滤波器20不对第一滤波信号进行滤波而直接采用第一滤波信号作为第二滤波信号。 Multiplexer 22 is a p-multiplexer, a second input terminal of adder 21 is connected to the other input of the third multiplier 26 is connected to another multiplexer 22 in contact with the counter 40, when the counter 40 counts to a certain predetermined count, the output enable signal to the multiplexer 22, such that the first filtered signal does not pass through the second adder 21 is multiplied by the value M of the second multiplier 26 directly from the third, then the second divider 24 divided by a second output value M, that is, when the counter 40 counts up to a certain predetermined count, at which point the comparator 30 by comparing the first filtered signal and the second filtered signals are still differences inch, i.e., the second filter 20 does not filter the first filtered signal and the first filtered signal is directly employed as the second filtered signal.

除了图3的实施之外,第二滤波器20也可采用梳形滤波器(combfilter)、 或有限脉冲响应滤波器(FIR)或无限脉冲响应滤波器(IIR)。 In addition to the embodiment of FIG. 3, the second filter 20 may also be employed comb filter (Combfilter), or a finite impulse response (FIR) filter or infinite impulse response filter (IIR).

本发明所揭露的温度测量的抗噪声方法的流程图,其主要分成两个部分流程,其中之一为第一滤波信号大于第二滤波信号时,即表示温度上升;另一为第一滤波信号小于第二滤波信号时,即表示温度下降。 A flowchart of a method of temperature measurement noise of the present invention is disclosed, which is divided into two flow portions, one of which is the first filtered signal is greater than the second filtered signal, i.e., showing the temperature rise; the other is the first filtered signal is less than the second filtered signal, it means that the temperature drops. 步骤50,判断第一滤波信号是否大于第二滤波信号;步骤56,判断第一滤波信号是否小于第二滤波信号,两个步骤都由比较器30进行比较。 Step 50, it is determined whether the first filtered signal is greater than a second filtered signal; a step 56, it is determined whether the first filtered signal is less than the second filtered signal, two steps are compared by the comparator 30. 当步骤50判断第一滤波信号小于第二滤波信号时,步骤55,清除计数器内部计数的值,再由比较器30判断第一滤波信号是否小于第二滤波信号。 When step 50 determines a first filtered signal is less than the second filtered signal, step 55, the internal count value of the counter is cleared, then the comparator 30 determines a first filtered signal is less than the second filtered signal.

步骤50,当比较器30判断第一滤波信号大于第二滤波信号时,此时温度正在上升中,步骤51,计数器的计数加1,步骤52,接着判断是否到达一预定计数,例如计数5次。 Step 50, when the comparator 30 determines a first filtered signal is greater than the second filtered signal, when the temperature is rising, step 51, the counter count is incremented, step 52, and then determines whether or not a predetermined count reaches, for example, count 5 . 当到达一定计数时,步骤53,输出一致能信号给第二滤波器20中多任务器22,步骤54,并清除计数器的计数,再回到步骤50 重新开始。 When reaching a certain count, step 53, an output enable signal to the second filter 20 in the multiplexer 22, step 54, and clears the count of the counter, and then returns to step 50 to restart.

步骤56,当比较器30判断第一滤波信号小于第二滤波信号时,此时温度正在下降中,步骤57,计数器的计数加1,步骤58,接着判断是否到达一预定计数,例如计数5次。 Step 56, when the comparator 30 determines a first filtered signal is less than the second filtered signal, when the temperature is decreased in step 57, the counter count is incremented, step 58, and then determines whether or not a predetermined count reaches, for example, count 5 . 当到达一定计数时,步骤53,输出一致能信号给第二滤波器20中多任务器22,步骤54,并清除计数器的计数,再回到步骤50 重新开始。 When reaching a certain count, step 53, an output enable signal to the second filter 20 in the multiplexer 22, step 54, and clears the count of the counter, and then returns to step 50 to restart. 步骤56,当比较器30判断第一滤波信号不小于第二滤波信号时, 步骤59,清除计数器,并再回到步骤50重新进行第一滤波信号与第二滤波信号的比较。 Step 56, when the comparator 30 determines a first filtered signal is not less than the second filtered signal, step 59, to clear the counter, and then returns to step 50 again compares the first filtered signal and the second filtered signal.

请参考图5,为本发明所揭露的温度测量的抗噪声装置及方法的技术效果示意图。 Referring to FIG 5, the present invention is disclosed a method and apparatus technical effect of anti-noise temperature measurement Fig.

如图所示,当第一滤波信号61与第二滤波信号62持续发生差异时,也即第一滤波信号是否持续大于或小于第二滤波信号,并大于一预定计数时,第二滤波器将以第一滤波信号61作为第二滤波信号63。 As shown, when the difference persists first filtered signal 61 and the second filtered signal 62, i.e. whether the first filtered signal for greater than or less than the second filtered signal, and is greater than a predetermined count, the second filter in a first filtered signal 61 as the second filtered signal 63.

由图中的示意可知,在未比较第一滤波信号与第二滤波信号时,第二滤波信号追上第一滤波信号的速度较慢,而通过本发明所揭露的抗噪声装置与方法,使得经过一预定计数时,以第一滤波信号作为第二滤波信号,以快速地反应待测物的温度。 Seen from the figure schematically, the first filtered signal and the second comparison signal is not filtered when the speed of the second filtered signal to catch the first filtered signal is slower, and the anti-noise apparatus and method disclosed by the present invention, such after a predetermined time counted at a first filtered signal as a second filtered signal, the temperature of the reaction to rapidly analyte.

由以上说明可知,现有的温度测量方式容易受噪声的干扰,且滤波器使用阶数过多又会造成无法迅速反应待测物温度的瞬间变化,可能会发生待测物温度过高,系统无法及时采取保护措施而烧毁待测物等技术问题。 From the above description, the conventional temperature measurement susceptible to noise interference, and the filter used would cause too order not responsive to transient changes in the temperature of the analyte, the analyte may occur temperature is too high, the system not been able to take protective measures and burned technical problems and other analytes. 本发明以不同阶段的滤波器之间关系与动作,去快速反应待测物的温度,避免待测物温度瞬间过高而保护不及的问题。 The present invention in different stages of the relationship between the filter operation, quick response to the temperature of the analyte, the analyte to avoid excessively high thermal transient protection is less. 本发明可应用于各种需要测量温度的信息产品,例如台式计算机、笔记本计算机、服务器、显卡等。 The present invention is applicable to various information need to measure the temperature of the product, such as desktop computers, laptop computers, servers, and other graphics.

当然,本发明还可有其他多种实施例,在不背离本发明精神及其实质的情况下,熟悉本领域的技术人员可根据本发明作出各种相应的改变和变形,但这些相应的改变和变形都应属于本发明权利要求的保护范围。 Of course, the present invention may have various other embodiments without departing from the spirit and the essence of the present invention, those skilled in the art can make various corresponding modifications and variations according to the present invention, these corresponding changes and variations should fall within the scope of the claims of the invention.

Claims (16)

  1. 1、一种温度测量的抗噪声的装置,其特征在于,包括有: 一第一滤波器,用以将一系列的温度测量数据进行滤波,以输出一第一滤波信号; 一第二滤波器,接收该第一滤波信号,并输出一第二滤波信号; 一比较器,比较该第一滤波信号及该第二滤波信号;以及一计数器,与该比较器连接,以进行一计数; 当该第一滤波信号持续大于或者持续小于该第二滤波信号时,该计数器输出一致能信号给该第二滤波器,使该第二滤波器以该第一滤波信号作为该第二滤波信号。 1, an anti-noise device temperature measurement, characterized by comprising: a first filter for the series of temperature measurement data filtering, to output a first filtered signal; a second filter receiving the first filtered signal and outputting a second filtered signal; a comparator, comparing the first filtered signal and the second filtered signal; and a counter connected to the comparator, to perform a count; when the the first filtered signal for greater than or less than the duration of the second filtered signal, the counter enabling signal output to the second filter to the second filter to the first filtered signal as the second filtered signal.
  2. 2、 根据权利要求1所述的温度测量的抗噪声装置,其特征在于,该第一滤波器为一低通滤波器。 2. The anti-noise temperature measurement apparatus according to claim 1, wherein the first filter is a low pass filter.
  3. 3、 根据权利要求1所述的温度测量的抗噪声装置,其特征在于,该第一滤波器为一梳形滤波器。 3, the temperature measuring apparatus according to the anti-noise according to claim 1, wherein the first filter is a comb filter.
  4. 4、 根据权利要求1所述的温度测量的抗噪声装置,其特征在于,该第一滤波器为一有限脉冲响应滤波器。 4. The anti-noise temperature measurement apparatus according to claim 1, wherein the first filter is a finite impulse response filter.
  5. 5、 根据权利要求1所述的温度测量的抗噪声装置,其特征在于,该第一滤波器为一无限脉冲响应滤波器。 5. The anti-noise temperature measurement apparatus according to claim 1, wherein the first filter is an infinite impulse response filter.
  6. 6、 根据权利要求2所述的温度测量的抗噪声装置,其特征在于,该第一滤波器包括有:一第一加法器,将该温度测量数据与一历史温度测量数据相加; 一第一缓存器,与该第一加法器连接,暂存该第一加法器的相加结果; 一第一除法器,与该第一缓存器连接,将该第一缓存器中的数据除以一第一数值,以取得一第一平均值作为该第一滤波信号;以及一第一乘法器,将该第一数值减l的结果乘以该第一除法器输出的数据,相乘结果作为下次滤波使用的历史温度测量数据。 6. The anti-noise device for temperature measurement according to claim 2, wherein the first filter comprises: a first adder adding the temperature measurement data and historical temperature measurement data a; a second a buffer, connected to the first adder, temporarily storing the addition result of the first adder; a first divider, connected to the first buffer, the data is first divided by a buffer a first value to obtain a first average value as the first filtered signal; and a first multiplier, the result of the first subtraction value is multiplied by l data of the first divider output, as a result of the multiplication th filtering using historical temperature measurement data.
  7. 7、 根据权利要求1所述的温度测量的抗噪声装置,其特征在于,该第二滤波器为一低通滤波器。 7, the anti-noise device according to the measured temperature according to claim 1, wherein the second filter is a low pass filter.
  8. 8、 根据权利要求6所述的温度测量的抗噪声装置,其特征在于,该第二滤波器为一梳形滤波器。 8. The anti-noise device for temperature measurement according to claim 6, wherein the second filter is a comb filter.
  9. 9、 根据权利要求6所述的温度测量的抗噪声装置,其特征在于,该第二滤波器为一有限脉冲响应滤波器。 9. The anti-noise device for temperature measurement according to claim 6, wherein the second filter is a finite impulse response filter.
  10. 10、 根据权利要求6所述的温度测量的抗噪声装置,其特征在于,该第二滤波器为一无限脉冲响应滤波器。 10. The anti-noise device for temperature measurement according to claim 6, wherein the second filter is an infinite impulse response filter.
  11. 11、 根据权利要求7所述的温度测量的抗噪声装置,其特征在于,该第二滤波器包括有-一第二加法器,将该第一滤波信号与一历史温度测量数据相加; 一多任务器,与该第二加法器连接,以传递该第二加法器的相加结果; 一第二缓存器,与该多任务器连接,以暂存由该多任务器传递的该第二加法器的相加结果;一第二除法器,与该第二缓存器连接,将该第二缓存器中的数据除以一第二数值,以取得一第二平均值作为该第二滤波信号;一第二乘法器,将该第二数值减l的结果乘以该第二除法器输出的数据, 相乘结果作为下次滤波使用的历史温度测量数据;以及一第三乘法器,其输出端与该多任务器连接,当该多任务器接收到该致能信号时,将该第一滤波信号乘以该第二数值。 11, anti-noise device according to claim temperature measurement according to claim 7, wherein the second filter comprises - a second adder, the first filtered signal with a historical temperature measurement data are added; a multiplexer, connected to the second adder, in order to transfer the addition result of the second adder; a second buffer connected to the multiplexer, the second transfer to temporary storage by the multiplexer the addition result of the adder; a second divider is connected to the second buffer, the data is divided by a second value of the second buffer, to obtain a second average value as the second filtered signal ; a second multiplier, the result of the second subtraction value is multiplied by l data of the second divider output of the multiplication result as historical temperature measurement data used for the next filter; and a third multiplier, the output end connected to the multiplexer, when the multiplexer receives the enable signal, the first filtered signal by the second value.
  12. 12、 一种温度测量的抗噪声方法,其特征在于,包括有: 取得一第一滤波信号以及一通过对该第一滤波信号再次进行滤波得到的第二滤波信号;比较该第一滤波信号是否大于或小于该第二滤波信号,并进行计数;以及当该第一滤波信号持续大于或者持续小于该第二滤波信号,且持续大于或持续小于的次数大于一预定计数时,以该第一滤波信号作为第二滤波信号。 12, anti-noise method for temperature measurement, characterized in that, comprising: obtaining a first filtered signal and a second filtered signal by filtering the first filtered signal is again obtained; if comparing the first filtered signal larger or smaller than the second filtered signal, and counts; and when the first filtered signal for greater than or less than the duration of the second filtered signal, and for greater than or less than the number of times is greater than a predetermined duration count to the first filter signal as the second filtered signal.
  13. 13、 根据权利要求12所述的温度测量的抗噪声方法,其特征在于,该第一滤波信号由一第一滤波器取得。 13, anti-noise method according to claim 12, wherein the temperature measurement, characterized in that the first filtered signal acquired by a first filter.
  14. 14、 根据权利要求13所述的温度测量的抗噪声方法,其特征在于,该第一滤波器为一低通滤波器。 14. The method of claim antinoise temperature measurement according to claim 13, wherein the first filter is a low pass filter.
  15. 15、 根据权利要求12所述的温度测量的抗噪声方法,其特征在于,该第二滤波信号由一第二滤波器取得。 15, anti-noise method according to claim 12, wherein the temperature measurement, characterized in that, the second filtered signal acquired by a second filter.
  16. 16、 根据权利要求15所述的温度测量的抗噪声方法,其特征在于,该第二滤波器为一低通滤波器。 16. The method of claim antinoise temperature measurement according to claim 15, wherein the second filter is a low pass filter.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1236913A (en) 1998-05-22 1999-12-01 瓦马特拉法格有限公司 Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems
CN1300386A (en) 1998-05-15 2001-06-20 瓦马特拉法格有限公司 Multipoint digital temperature controller

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1300386A (en) 1998-05-15 2001-06-20 瓦马特拉法格有限公司 Multipoint digital temperature controller
CN1236913A (en) 1998-05-22 1999-12-01 瓦马特拉法格有限公司 Electronic thermostat control unit and its use in multipoint temperature controller for refrigeration and heating systems

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