M410240 100年5月ό日修正替換頁 五、新型說明： 【新型所屬之技術領域】 本創作是有關於一種電子裝置，且特別是有關於一種 控制風扇轉速之電子裝置。 【先前技術】 現今電子產品因為處理資料的操作頻率極高，使得使 用者於操作電子產品時，電子產品皆因為高頻處理速度而 產生大量的熱量。而為了提高產品的壽命，所以電子產品 皆需設置用於散熱的風扇。一般來說，無論風扇的設計原 理為何，皆無法避免風扇運轉時所產生的噪音。當風扇之 轉速越快時，風扇運轉時所產生的噪音越大。而在風扇高 速運轉所產生的噪音，將會使得使用者感受到不舒服，進 而降低使用者使用此電子產品的意願。因此，如何避免風 扇運轉所產生的噪音影響到使用者的使用意願，乃為相關 業者努力之課題之一。 【新型内容】 本創作係有關於一種電子裝置，其利用與使用者相距 的距離來控制風扇的轉速，以降低使用者因風扇轉速過大 所產生的嗓音之影響。 根據本創作，提出一種電子裝置。電子裝置包括一風 扇、一風扇控制器、一測距模組以及一處理單元。風扇控 制器用以控制風扇以一轉速轉動。測距模組用以量測與一 特定物相距的距離而取得一距離資訊。處理單元用以接收 3 W4〇 並依墟-欠 100年5月6日修正替換頁 離貧訊決定出一轉速控制指令。風扇控制器更依 據轉速控制指令控制風扇的轉速。 為了對本創作之上述及其他方面有更佳的瞭解，下文 、舉較佳實施例，並配合所附圖式，作詳細說明如下： 【實施方式】 第一實施例 °月參照第1圖，其繪示本創作第一實施例之電子裝置 1〇〇之方塊圖。電子裝置100例如是筆記型電腦或是桌上 型電腦。第1圖僅繪示電子裝置100之部分元件。電子裝 置1〇〇包括一處理單元110、一測距模組120、一風扇 制器130、以及-風扇140。 _ 處理單元例如是中央處理器、或是嵌入式處理單 測距杈組120例如是影像擷取模組，並依據影像擷取 f組所擷取之影像來取得此測距模組120與一特定物的距 :。此測距模組120也可以是一紅外線模組，藉由此 2外線杈組所發射的紅外線來偵測此測距模組120與此特 定物的距離。然本實施例的測距模組12〇不限於此’凡可 7以置測與一特定物相距距離而取得距離資訊DI1之模組 白可用以作為本實施例之測距模組12〇且不脫離本實施例 的fc圍。處理單元110更可用以接收並依據測距模組12〇 所傳送之距離資訊DI1決定出一轉速控制指令CC1。風扇 控制器130例如是邏輯控制器，用以依據轉速控制指令 CC1控制風扇140以一轉速轉動。 處理單元110包括一距離級距單元in與一決策單元 4 M41U^40 100年5月6日修正替換胃 112。距離級距單元ηι用以判斷出測距模組丨2〇 所量測之 距離資訊DI1屬於數個距離級距中之其中一者。決策單元 U2用以依據距離級距單元Ul所決定的距離級距來決定 出轉速控制指令CC卜此些距離級距之其中—者之最大距 離值大於此些距離級距之另—者之最大距離值，且根據此 些距離級距之其中一者決定出之轉速控制指令CC1對應 的轉速大於根據此些距離級距之另一者決定出之轉速控 制指令CC1對應的轉速。 舉例來說，請參照表1，其列出本創作第一實施例之 距離級距與風扇轉速的對應關係。 表1 離級距與風鳥轉速的對應關係 距離級距（公分） 風扇的轉速(rpm) 0〜25 3000 25-50 4000 50〜1〇〇 5000 請同時參照第2圖，其繪示第1圖中之電子裝置ι〇〇 與特定物PO相距一距離01之示意圖。此處之特定物卩〇 例如是使用者。特定物P0與電子裝置1〇〇之距離以 表之。於表1中，距離級距包括〇〜25公分、25〜5〇公分、 以及50〜100公分，其中25〜5〇公分的距離級距中之最大 距離值（50公分）大於〇〜25公分的距離級距中之最大距離 值（25公分），且25〜50公分的距離級距所對應的風扇的轉 速（4000 轉/母为在里（rev〇iuti〇ns ，rpm))大於 〇〜μ 公分的距離級距所對應的風扇的轉速(3〇〇〇 rpm)。 在本實施例中，當測距模組12〇偵測到特定物（使用 5 M410240 100年5月6日修正雜頁 者）距離測距模組120之距離D1介於0〜25公分，例如是 13公分。測距模組120將此距離資訊DI1(13公分）傳送至 處理單元110中的距離級距單元111。距離級距單元111 依據其預設之距離級距，例如是表1所示，判斷此距離資 訊DI 1(13公分）屬於0〜25公分的距離級距。決策單元112 依據距離級距單元111所決定的距離級距決定風扇14〇的 目標轉速應為3000 rpm，並傳送轉速控制指令CC1(目標 轉速為3000 rpm)至風扇控制器130。而風扇控制器130則 依據轉速控制指令CC1控制風扇140以3000 rpm的轉速 轉動。 雖然本實施例以距離級距0~25公分對應至風扇轉速 3000 rpm為例來做說明，然本實施例不限於此，凡是依據 測距模組120與一特定物相距的距離資訊來判斷風扇的轉 速皆不脫離本實施例的範圍。 此外’雖然距離級距25〜50公分所對應的風扇的轉速 較距離級距0〜25公分所對應的風扇的轉速為大，而可能 產生較大的噪音，然而由於此時使用者與電子裝置100相 距的距離較大，所以使用者並不會因為較大的風扇的轉速 而感受到風扇之噪音的差異。舉例來說，當使用者與以 3000 rpm轉速運轉的風扇相距的距離為25公分時所感受 到的噪音約為35權分貝（Decibel A Weighting，dbA)，而當 使用者與以4000 rpm轉速運轉的風扇相距的距離為50公 分時，使用者感受到的噪音也大約為35權分貝。如此一 來’由於使用者感受到的噪音相同，所以使用者並不會因 為電子裝置的風扇之轉速提高而降低使用的感受。進一步 M410240 - 100年5月6曰修正替換頁 • 來說，由於電子裝置的風扇轉速提高，可降低電子裝置的 系統溫度進而提高電子裝置的處理效能。所以，電子裝置 藉由依據與使用者相距的距離來調整風扇的轉迷，可具有 在不影響使用者使用感受的情況下，提高散熱的效能以進 一步增加系統的處理效能及使用壽命。 ' 第二實施例 - 請參照第3圖，其繪示本創作第二實施例之電子裝置 φ 300之方塊圖。本實施例之電子裝置300與第一實施例之 電子裝置1〇〇不同之處在於處理單元310,且電子裝置300 更包括温度感測器350。測距模組32〇、風扇控制器330、 以及風扇340類似於第一實施例中的測距模組12〇、風扇 控制器130、以及風扇140 ’於此不再贅述。 溫度感測器350例如是電子式溫度計’用以感測熱源 之溫度而取得溫度資訊TI2。一般來說，由於電子裝置3〇〇 • 之内部元件中通常以中央處理器的溫度最高，所以此實施 籲 例之熱源例如是此中央處理器。而溫度感測器350例如是 可設置在電子裝置300的中央處理器之外殼的表面上，或 是設置在中央處理器之外殼的内側，用以取得中央處理器 的溫度資訊TI2。然本實施例的溫度感測器350之配置位 置不限於此，凡將溫度感測器350設置於電子裝置上皆不 脫離本實施例的範圍。 處理單元310可用以接收並依據測距模組320與溫度 感測器350所傳送之距離資訊DI2與溫度資訊TI2決定出 一轉速控制指令CC2。 7 M410240 處理單幻Η)包括—距離級距單元3^、=日粧:類 312、與-溫度級距單元313。距離級距單 、I早几 = = 距_〇12屬於數個距 八中者其中該些距離級距之其中 值實質上等於該些距離級距之另—者之最小=， 級距單元313用以判斷出該溫度資訊172屬於複=個^ 級距中之其中-者。射此些溫度級距之1中— 溫度值實質上等於此些溫度級距之另—者之最小 值。決策單元3i2用以依據距離級距與溫度級距來決定出 轉速控制指令CC2。 舉例來說’請參照表2，其列出本創作第二實施例之 距離級距、溫度級距與風扇轉速的對應關係。 tir » — -- i» 距離級距（公分） 目標轉速(rpm) y ^ ^ rn |i 溫度級距（°c ) 0〜25 3000 35 〜40 3500 40 〜45 4000 45-50 4500 50-55 5000 55 〜60 25〜50 3000 30-35 3500 35-40 4000 40-45 4500 45-50 5000 50-55 50-100 ------- 3000 25-30 8 M410240 --- 100 年 5 曰 6 3500 30 〜35 4000 35 〜40 4500 40-45 L--- 5000 45 〜50 於表2中，距離級距包括〇〜25公分、25〜5〇公分、 X及50〜1〇〇么为，其中25〜50公分的距離級距中之最小 距離值（25公分）實質上等於〇〜25公分的距離級距中之最 大距離值（25公分）。於表2中，溫度級距包括35〜4〇<t與 40〜45 C。35〜40 C的溫度級距中之最大溫度值（4〇。〇)實質 上等於40〜45°C的溫度級距中之最小溫度值（4〇t：)。 在本實施例中，當測距模組320偵測到使用者距離電 子裝置300之距離介於〇〜25公分，例如是13公分；且溫 度感測器350感測到熱源的溫度介於45〜5〇〇c，例如是 47 C。則測距模組320將此距離資訊〇12( 13公分）傳送至 距離級距單元311;溫度感測器350將此溫度資訊Ti2(47°C) 傳送至溫度級距單元312。距離級距單元311依據其預設M410240 Correction and replacement page on May 30, 100. V. New description: [New technical field] This creation is related to an electronic device, and in particular to an electronic device for controlling the fan speed. [Prior Art] Today's electronic products operate at an extremely high frequency, so that when the user operates the electronic product, the electronic product generates a large amount of heat due to the high-frequency processing speed. In order to improve the life of the product, the electronic product needs to be provided with a fan for heat dissipation. In general, no matter the design principle of the fan, the noise generated when the fan is running cannot be avoided. The faster the fan speed, the greater the noise generated when the fan is running. The noise generated by the fan running at a high speed will make the user feel uncomfortable, thereby reducing the user's willingness to use the electronic product. Therefore, how to avoid the noise generated by the operation of the fan affects the user's willingness to use is one of the subjects of the related industry. [New Content] This creation is about an electronic device that uses the distance from the user to control the rotation speed of the fan to reduce the influence of the user's arpeggio caused by excessive fan speed. According to the present invention, an electronic device is proposed. The electronic device includes a fan, a fan controller, a ranging module, and a processing unit. The fan controller is used to control the fan to rotate at a speed. The ranging module is configured to measure a distance from a specific object to obtain a distance information. The processing unit is used to receive 3 W4〇 and the replacement page is revised according to the market--April 6th, and the speed control command is determined. The fan controller controls the fan speed based on the speed control command. In order to better understand the above and other aspects of the present invention, the following description of the preferred embodiments and the accompanying drawings will be described in detail as follows: [Embodiment] The first embodiment refers to FIG. A block diagram of the electronic device 1 of the first embodiment of the present invention is shown. The electronic device 100 is, for example, a notebook computer or a desktop computer. FIG. 1 shows only some of the components of the electronic device 100. The electronic device 1A includes a processing unit 110, a ranging module 120, a fan 130, and a fan 140. The processing unit is, for example, a central processing unit or an embedded processing single ranging group 120, such as an image capturing module, and obtains the ranging module 120 and the image according to the image captured by the image f group. The distance between specific objects: The ranging module 120 can also be an infrared module, and the distance between the ranging module 120 and the specific object is detected by the infrared rays emitted by the outer coil group. However, the ranging module 12 of the present embodiment is not limited to the module white that obtains the distance information DI1 by measuring the distance from a specific object, and can be used as the ranging module 12 of the embodiment. It does not deviate from the fc circumference of this embodiment. The processing unit 110 is further configured to receive and determine a rotational speed control command CC1 according to the distance information DI1 transmitted by the ranging module 12A. The fan controller 130 is, for example, a logic controller for controlling the fan 140 to rotate at a rotational speed in accordance with the rotational speed control command CC1. The processing unit 110 includes a distance step unit in and a decision unit 4 M41U^40. The replacement stomach 112 is modified on May 6, 100. The distance step unit ηι is used to determine that the range information DI1 measured by the ranging module 丨2〇 belongs to one of several distance steps. The decision unit U2 is configured to determine, according to the distance step determined by the distance step unit U1, that the maximum distance value of the speed control command CC is greater than the distance of the distance steps. The distance value, and the speed corresponding to the speed control command CC1 determined according to one of the distance steps is greater than the speed corresponding to the speed control command CC1 determined by the other of the distance steps. For example, please refer to Table 1, which lists the correspondence between the distance step and the fan speed of the first embodiment of the present invention. Table 1 Correspondence between off-speed and windbird speed Distance step (cm) Fan speed (rpm) 0~25 3000 25-50 4000 50~1〇〇5000 Please also refer to Figure 2, which shows Figure 1. The electronic device in the middle is separated from the specific object PO by a distance 01. The specific substance here is, for example, a user. The distance between the specific object P0 and the electronic device 1 is shown. In Table 1, the distance step includes 〇~25 cm, 25~5 〇cm, and 50~100 cm, wherein the maximum distance (50 cm) of the distance between 25 and 5 cm is greater than 〇25 cm. The maximum distance (25 cm) of the distance from the distance, and the speed of the fan corresponding to the distance of 25 to 50 cm (4000 rpm is greater than 〇) (〇) The speed of the fan corresponding to the distance of μ cm (3 rpm). In this embodiment, when the ranging module 12 detects a specific object (using 5 M410240, the modified pager on May 6, 100), the distance D1 from the distance measuring module 120 is between 0 and 25 cm, for example, It is 13 cm. The ranging module 120 transmits the distance information DI1 (13 cm) to the distance step unit 111 in the processing unit 110. The distance step unit 111 determines that the distance information DI 1 (13 cm) belongs to a distance step of 0 to 25 cm according to its preset distance step, for example, as shown in Table 1. The decision unit 112 determines that the target speed of the fan 14〇 should be 3000 rpm according to the distance step determined by the distance step unit 111, and transmits the speed control command CC1 (target speed 3000 rpm) to the fan controller 130. The fan controller 130 controls the fan 140 to rotate at 3000 rpm in accordance with the rotational speed control command CC1. Although the embodiment is described by taking the distance between 0 and 25 cm to the fan speed of 3000 rpm as an example, the embodiment is not limited thereto, and the fan is determined according to the distance information of the distance measuring module 120 and a specific object. The rotational speeds do not depart from the scope of the embodiment. In addition, although the rotational speed of the fan corresponding to the distance of 25 to 50 cm is larger than the rotational speed of the fan corresponding to the distance of 0 to 25 cm, a large noise may occur, but at this time, the user and the electronic device The distance between the 100 distances is large, so the user does not feel the difference in noise of the fan due to the rotation speed of the larger fan. For example, when the distance between the user and the fan running at 3000 rpm is 25 cm, the noise is about 35 decibel A Weighting (dbA), and when the user is running at 4000 rpm. When the distance between the fans is 50 cm, the noise felt by the user is also about 35 decibels. In this way, since the user feels the same noise, the user does not reduce the feeling of use due to the increase in the rotational speed of the fan of the electronic device. Further M410240 - May 6th, 100th Correction Replacement Page • In terms of the increase in the fan speed of the electronic device, the system temperature of the electronic device can be lowered to improve the processing performance of the electronic device. Therefore, by adjusting the fan's fascination according to the distance from the user, the electronic device can improve the heat dissipation performance without affecting the user's feeling of use, thereby further increasing the processing efficiency and service life of the system. Second Embodiment - Referring to Figure 3, there is shown a block diagram of an electronic device φ 300 of the second embodiment of the present invention. The electronic device 300 of the present embodiment is different from the electronic device 1 of the first embodiment in the processing unit 310, and the electronic device 300 further includes a temperature sensor 350. The ranging module 32A, the fan controller 330, and the fan 340 are similar to the ranging module 12A, the fan controller 130, and the fan 140' in the first embodiment, and will not be described again. The temperature sensor 350 is, for example, an electronic thermometer 'for sensing the temperature of the heat source to obtain the temperature information TI2. In general, since the temperature of the central processing unit is usually the highest among the internal components of the electronic device, the heat source of the embodiment is, for example, the central processing unit. The temperature sensor 350 can be disposed, for example, on the surface of the casing of the central processing unit of the electronic device 300 or on the inner side of the casing of the central processing unit for obtaining the temperature information TI2 of the central processing unit. However, the configuration of the temperature sensor 350 of the present embodiment is not limited thereto, and the temperature sensor 350 is disposed on the electronic device without departing from the scope of the embodiment. The processing unit 310 can receive and determine a rotational speed control command CC2 according to the distance information DI2 and the temperature information TI2 transmitted by the ranging module 320 and the temperature sensor 350. 7 M410240 processing single illusion) includes - distance step unit 3^, = day makeup: class 312, and - temperature step unit 313. The distance step is single, I is a few = = _ 〇 12 belongs to a number of distances from the eight of them, wherein the distances of the distances are substantially equal to the other of the distance intervals, the step size unit 313 It is used to determine that the temperature information 172 belongs to one of the complex=levels. Shooting one of these temperature steps - the temperature value is substantially equal to the other of these temperature steps. The decision unit 3i2 is configured to determine the speed control command CC2 according to the distance step and the temperature step. For example, please refer to Table 2, which lists the correspondence between the distance step, the temperature step and the fan speed in the second embodiment of the present invention. Tir » — -- i» Distance step (cm) Target speed (rpm) y ^ ^ rn |i Temperature step (°c) 0~25 3000 35 ~40 3500 40 ～45 4000 45-50 4500 50-55 5000 55 ~ 60 25~50 3000 30-35 3500 35-40 4000 40-45 4500 45-50 5000 50-55 50-100 ------- 3000 25-30 8 M410240 --- 100 years 5 曰6 3500 30 ~ 35 4000 35 ~ 40 4500 40-45 L--- 5000 45 ~ 50 In Table 2, the distance step includes 〇 ~ 25 cm, 25 ~ 5 〇 cm, X and 50 ~ 1 〇〇 The minimum distance value (25 cm) of the distance steps of 25 to 50 cm is substantially equal to the maximum distance value (25 cm) of the distance steps of 〇 25 cm. In Table 2, the temperature step includes 35 to 4 〇 < t and 40 to 45 C. The maximum temperature value (4 〇.〇) in the temperature range of 35 to 40 C is substantially equal to the minimum temperature value (4〇t:) in the temperature step of 40 to 45 °C. In this embodiment, when the distance measuring module 320 detects that the distance between the user and the electronic device 300 is between 〇25 and 25 cm, for example, 13 cm; and the temperature sensor 350 senses that the temperature of the heat source is between 45. ~5〇〇c, for example, 47 C. Then, the distance measuring module 320 transmits the distance information 〇12 (13 cm) to the distance step unit 311; the temperature sensor 350 transmits the temperature information Ti2 (47 ° C) to the temperature step unit 312. The distance step unit 311 is based on its preset
之距離級距，例如是表2所示，判斷此距離資訊DI2(i3 公分）屬於0〜25公分的距離級距。溫度級距單元313依據 其預設之溫度級距，例如是表2所示，判斷此溫度資訊 TI2(47°C)屬於45〜50°C的溫度級距。決策單元312依據距 離級距（0〜25公分）與溫度級距(45〜50°C)決定風扇340的目 標轉速應為4000 rpm，並傳送轉速控制指令CC2(目標轉 速為4000 rpm)至風扇控制器330。其中轉速控制指令CC2 包括風扇340的目標轉速。而風扇控制器330則依據轉速 控制指令CC2控制風扇340以4000 rpm的轉速轉動。 9 M410240 100年5月6日修正替換頁 雖然本實施例以距離級距〇〜25公分、溫度級距 45〜50°C對應至風扇轉速4000 rpm為例來做說明，然本實 施例不限於此，凡是依據距離資訊以及溫度資訊TI2來判 斷風扇之轉速皆不脫離本實施例的範圍。 第三實施例 請參照第4圖，其繪示本創作第三實施例之電子裝置 400與處理單元410之方塊圖。本實施例之電子裝置400 與第二實施例之電子裝置300不同之處在於處理單元 41 〇。其餘單元類似於弟二實施例中對應的單元，於此不 再贅述。 處理單元410包括一距離級距單元411、一決策單元 412、與一溫度級距單元413。距離級距單元411用以判斷 出測距模組420所量測之距離資訊DI3屬於數個距離級距 中之其中一者。其中該些距離級距之其中一者之最大距離 值實質上等於該些距離級距之另一者之最小距離值。溫度 級距單元413用以判斷出該溫度資訊TI3屬於複數個溫度 、及距中之其中—者。決策單元412用以當温度資訊的溫度 大於所決定的溫度級距的最大溫度值時，設定對應至所決 定之溫度級距的轉速為-目標轉速，並依據距離級距盘溫 度級距來決定出轉速控制指令CC3，其中該轉速控制指令 CC3包括該目標轉速。 例來說，請參照表3，其列出本創作第三實施例之 、’距、值度級距與風扇轉速的對應關係。 表3 :距離級距、溫度級距與風扇轉料對應關係 M410240The distance step distance, for example, is shown in Table 2, and it is judged that the distance information DI2 (i3 cm) belongs to a distance step of 0 to 25 cm. The temperature step unit 313 determines that the temperature information TI2 (47 ° C) belongs to a temperature step of 45 to 50 ° C according to its preset temperature step, for example, as shown in Table 2. The decision unit 312 determines that the target speed of the fan 340 should be 4000 rpm according to the distance step (0 to 25 cm) and the temperature step (45 to 50 ° C), and transmits the speed control command CC2 (target speed is 4000 rpm) to the fan. Controller 330. The speed control command CC2 includes the target speed of the fan 340. The fan controller 330 controls the fan 340 to rotate at 4000 rpm in accordance with the rotational speed control command CC2. 9 M410240 Modified on May 6, 100, although this embodiment is described by taking the distance step 〇~25 cm, the temperature step 45~50 °C corresponding to the fan speed 4000 rpm as an example, the embodiment is not limited Therefore, the determination of the rotational speed of the fan based on the distance information and the temperature information TI2 does not deviate from the scope of the embodiment. Third Embodiment Referring to FIG. 4, a block diagram of an electronic device 400 and a processing unit 410 according to a third embodiment of the present invention is shown. The electronic device 400 of the present embodiment is different from the electronic device 300 of the second embodiment in the processing unit 41. The remaining units are similar to the corresponding units in the second embodiment, and will not be described again here. The processing unit 410 includes a distance step unit 411, a decision unit 412, and a temperature step unit 413. The distance level unit 411 is configured to determine that the distance information DI3 measured by the distance measuring module 420 belongs to one of several distance steps. The maximum distance value of one of the distance steps is substantially equal to the minimum distance value of the other of the distance steps. The temperature step unit 413 is configured to determine that the temperature information TI3 belongs to a plurality of temperatures and distances. The determining unit 412 is configured to set the rotational speed corresponding to the determined temperature step to the target rotational speed when the temperature of the temperature information is greater than the determined maximum temperature value of the temperature step, and determine according to the distance step distance of the disk temperature step The speed control command CC3 is output, wherein the speed control command CC3 includes the target speed. For example, please refer to Table 3, which lists the correspondence between the 'distance, the value step and the fan speed in the third embodiment of the present creation. Table 3: Correspondence between distance step, temperature step and fan transfer M410240
100年5月6日修正替換頁 距離級距 (公分） 風扇轉速(rpm) 溫度級距（°C ) 控制動作 0〜25 3000 50 啟動 40 關閉 3500 58 啟動 48 降至上一級轉速 4000 65 啟動 55 降至上一級轉速 4500 82 啟動 72 降至上一級轉速 5000 90 啟動 80 降至上一級轉速 25 〜50 3000 40 啟動 30 關閉 3500 50 啟動 40 降至上一級轉速 4000 58 啟動 48 降至上一級轉速 4500 65 啟動 55 降至上一級轉速 5000 82 啟動 72 降至上一級轉速 50〜100 3000 35 啟動 25 關閉 3500 40 啟動 30 降至上一級轉速 4000 50 啟動 40 降至上一級轉速 11 M410240 i〇〇年修ip替抱苜 4500 58 啟動 48 降至上一級轉速 5000 65 啟動 55 降至上一級轉速 於表3中，距離級距包括0〜25公分、25〜5〇公分、 以及50〜1〇〇公分，其中25〜5〇公分的距離級距中之最小 距離(25公分）實質上等於〇〜25公分的距離級距中之最大 距離（25公分）。Corrected replacement page distance step (cm) on May 6th, 100 Fan speed (rpm) Temperature step (°C) Control action 0~25 3000 50 Start 40 Off 3500 58 Start 48 Down to the previous speed 4000 65 Start 55 drop Up to the next speed 4500 4500 Start 72 Down to the previous speed 5000 90 Start 80 Down to the previous speed 25 ~ 50 3000 40 Start 30 Close 3500 50 Start 40 Down to the previous speed 4000 58 Start 48 Down to the previous speed 4500 500 Start 55 Down to the previous level Speed 5000 82 Start 72 Down to the previous speed 50~100 3000 35 Start 25 Close 3500 40 Start 30 Down to the previous speed 4000 50 Start 40 Down to the previous speed 11 M410240 i〇〇年修ip 苜 苜 4500 4500 Start 48 The first-level speed 5000 65 starts 55 to the upper level in Table 3, the distance step includes 0~25 cm, 25~5〇 cm, and 50~1〇〇 cm, of which 25~5〇 cm is in the distance step The minimum distance (25 cm) is substantially equal to the largest of the distances of 〇~25 cm. Large distance (25 cm).
在本實施例中，當測距模組420偵測到使用者距離電 子裝置400之距離介於〇〜25公分，例如是13公分；且溫 度感測器450感測到熱源的溫度例如是67。〇。則測距模組 420將此距離資訊DI3(13公分）傳送至距離級距單元4ιι ; 溫度感測器450將此溫度資訊113(671)傳送至溫度級距 單元412。距離級距單元411依據其預設之距離級距，例 如是表3所示，判斷此距離資訊DI3(13公分）屬於〇〜25公 分的距離級距。由於67。(：大於44、53、65。(：，但小於82°C，In this embodiment, when the distance measuring module 420 detects that the distance of the user from the electronic device 400 is between 〇25 and 25 cm, for example, 13 cm; and the temperature sensor 450 senses that the temperature of the heat source is, for example, 67. . Hey. The ranging module 420 transmits the distance information DI3 (13 cm) to the distance step unit 4; the temperature sensor 450 transmits the temperature information 113 (671) to the temperature step unit 412. The distance step unit 411 determines the distance information DI3 (13 cm) to be a distance step of 〇 25 cm in accordance with the preset distance step, for example, as shown in Table 3. Thanks 67. (: greater than 44, 53, 65. (:, but less than 82 ° C,
所以溫度級距單元413依據其預設之溫度級距，例如是表 3所示，判斷此溫度資訊丁13(67。〇屬於55〜65。(：的溫度級 距所能處理的範圍。由於溫度資訊TI3(67°C)大於55〜65T： 的級距中最大溫度值（65。〇，所以決策單元412設定對應 至55〜65°C的溫度級距之轉速(4000 rpm)為一目標轉速，並 依據距離級距與溫度級距來決定出轉速控制指令CC3，其 中此轉速控制指令CC3包括此目標轉速。 此時，若因為風扇440的轉速夠快，導致系統溫度降 低，使得溫度感測器450所感測到的溫度低於67°C。舉例 12 M410240 ' 100年5月6日修正替換頁 來說’溫度感測器450於風扇轉速為4000 rpm時所感測到 的溫度為53°C。而溫度感測器450將此另一溫度資訊 TI3(53°C)傳送至決策單元412。由於溫度級距單元413已 判斷溫度級距為55〜65°C，所以決策單元412判斷另一溫 度資訊TI3(53°C )的溫度是否低於此55〜65°C溫度級距中之 最小溫度值。由於另一溫度資訊TI3的溫度是小於55〜65。〇 級距中之最小溫度值’所以決策單元412從此些溫度級距 中決疋出另一溫度級距’請參照表3，決策單元412決定 # 另一溫度級距為48〜58。(：級距，並設定對應至48〜58。(：級 距的轉速3500 rpm為另一目標轉速，並將包括此另一目標 轉速的轉速控制指令CC3傳送至風扇控制器430。在此例 子中，由於電子裝置的系統溫度已降溫，所以風扇44〇的 轉速可降低，所以另一目標轉速3500 rpm的速度係低於目 標轉速4000 rpm。 雖本實施例以距離級距0〜25公分、溫度級距55〜65<t ’ 對應至風扇的轉速4000 rpm為例來做說明，然本實施例不 • 限於此，凡是依據距離資訊以及溫度資訊來判斷風扇轉速 皆不脫離本實施例的範圍。 總結來說’本創作上述實施例之電子裝置，可利用與 特定物（例如是使用者）相距的距離來控制風扇的轉速。 如此一來’當使用者距離電子裝置的距離較遠時，可提言 風扇的轉速以加快電子裝置之熱量排放，進而降低電子^ 置的系統溫度來提升電子裝置的操作效能。此外^於— 施例中，電子裝置更能依據距離資訊與溫度資訊來判斷^ 13 M410240 100年5月6日修正替換頁 扇的轉速。如此一來，即使溫度感測器所感測到的溫度相 同，然而當使用者距離電子裝置的距離不同時，風扇仍可 能於使用者距離電子裝置較遠時以較高的轉速運轉，以使 得風扇在使用者感覺不到噪音的差異下提升轉速。此舉既 能避免使用者感受到風扇提高轉速所產生的噪音，也能提 升系統的操作效能。 綜上所述，雖然本創作已以較佳實施例揭露如上然 其並非用以限定本創作。本創作所屬技術領域中具有通常 知識者，在不脫離本創作之精神和範圍内，當可作各種之 更動與潤飾。因此，本創作之保護範圍當視後附之申請專 利範圍所界定者為準。 【圖式簡單說明】 第1圖繪示本創作第_實施例之電子裝置之方塊圖。 第2圖繪示第1圖中之電子襄置與特定物相距-距離 之示意圖。 第3圖繪7F本創作第二實施例之電子裝置之方塊圖。 第4圖繪不本創作第三實施例之電子裝置之方塊圖。 【主要元件符號說明】 100、300、400 :電子裝置 110、310、410 :處理單元 120、320、420 :測距模組 130、330、430 :風扇控制器 M410240 100年5月6日修正替換頁 140、340、440 :風扇 111、 311、411 :距離級距單元 112、 312、412 :決策單元 350、450 :溫度感測器 313、413 :溫度級距單元 CC1、CC2、CC3 :轉速控制指令 D1 :電子裝置與特定物相距的距離Therefore, the temperature step unit 413 determines the temperature information according to its preset temperature step, for example, as shown in Table 3. The temperature information is 13 (67. 〇 belongs to 55 to 65. (: The temperature step can be processed by the range. The temperature information TI3 (67 ° C) is greater than the maximum temperature value in the step of 55~65T: (65. 〇, so the decision unit 412 sets the speed (4000 rpm) corresponding to the temperature step of 55 to 65 ° C as a target. The speed, and the speed control command CC3 is determined according to the distance step and the temperature step, wherein the speed control command CC3 includes the target speed. At this time, if the speed of the fan 440 is fast enough, the system temperature is lowered, so that the temperature sense The temperature sensed by the detector 450 is lower than 67 ° C. For example, 12 M410240 'Revision of the replacement page on May 6, 100. 'The temperature sensor 450 senses a temperature of 53 ° at a fan speed of 4000 rpm. C. The temperature sensor 450 transmits the other temperature information TI3 (53 ° C) to the decision unit 412. Since the temperature step unit 413 has judged that the temperature step is 55 to 65 ° C, the decision unit 412 determines another Is the temperature of a temperature information TI3 (53 ° C) lower than this 55? The minimum temperature value in the temperature range of 65 ° C. Since the temperature of the other temperature information TI3 is less than 55 to 65. The minimum temperature value in the 〇 step distance 'so the decision unit 412 decides from the temperature level Temperature step 'Please refer to Table 3, decision unit 412 determines # another temperature step is 48~58. (: step, and set to correspond to 48~58. (: 3500 rpm of the step is another target speed And transmitting the speed control command CC3 including the other target speed to the fan controller 430. In this example, since the system temperature of the electronic device has cooled, the speed of the fan 44〇 can be lowered, so the other target speed is 3500. The speed of the rpm is lower than the target speed of 4000 rpm. Although the distance between the steps of 0 to 25 cm and the temperature step of 55 to 65 < t ' corresponds to the speed of the fan of 4000 rpm, the embodiment is described. Not limited to this, the determination of the fan speed based on the distance information and the temperature information does not deviate from the scope of the embodiment. In summary, the electronic device of the above embodiment can be utilized with a specific object (for example, The distance between the fans is used to control the speed of the fan. Thus, when the user is far away from the electronic device, the speed of the fan can be increased to speed up the heat discharge of the electronic device, thereby lowering the temperature of the electronic system to boost the electronic The operating efficiency of the device. In addition, in the example, the electronic device can judge the speed of the replacement page fan according to the distance information and the temperature information. 13 M410240 The speed of the replacement page fan is corrected on May 6, 100. Thus, even the temperature sensor The sensed temperature is the same, however, when the distance between the user and the electronic device is different, the fan may still operate at a higher rotational speed when the user is farther away from the electronic device, so that the fan does not feel the difference in noise at the user. Lower the speed. This will prevent the user from feeling the noise generated by the fan's increased speed and improve the operating efficiency of the system. In summary, although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field of the present invention can make various changes and refinements without departing from the spirit and scope of the present creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the application patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an electronic device of the present invention. Fig. 2 is a schematic view showing the distance between the electronic device and the object in the first figure. Fig. 3 is a block diagram showing the electronic device of the second embodiment of the present invention. Fig. 4 is a block diagram showing the electronic device of the third embodiment. [Main component symbol description] 100, 300, 400: electronic device 110, 310, 410: processing unit 120, 320, 420: ranging module 130, 330, 430: fan controller M410240 Modified on May 6, 100 Pages 140, 340, 440: fans 111, 311, 411: distance step units 112, 312, 412: decision units 350, 450: temperature sensors 313, 413: temperature step units CC1, CC2, CC3: speed control Command D1: distance between the electronic device and the specific object
Dll、DI2、DI3 :距離資訊 PO :特定物 TI2、TI3 :溫度資訊 15Dll, DI2, DI3: Distance information PO: Specific objects TI2, TI3: Temperature information 15