201135123 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種路燈亮滅控制系統，尤指—種能依 環境光線變化速率調整亮度的路燈控制系統。 【先前技術】 目削路燈點滅控制概採用亮度感測器作為感知環境齐 度的元件，一旦環境亮度低於亮度感測器預設值，立即點 φ 亮路燈；反之，則控制路燈熄滅。 然而天色亮暗並非瞬間變化而成，因此時常造成天色 未暗路燈即點亮’或是天色未亮即熄滅的不佳照明狀況， 前者有浪費電力之虞，後者則是造成用路人的危險。 再者’又時常看見無法點滅亮的路燈，不是在夜間無 法提供照明光線，就是白天光線充足時仍舊燈火通明浪費 電力》 ^ 因此’目前路燈的點滅控制必須提供更佳的控制系 參統’以維護用路人的安全’並能夠節約用電。 【發明内容】 有鑑於上述說明既有路燈控制系統之各項缺點，本發 明的主要目的係提供一種依環境光線變化速率調整亮度的 路燈控制系統。 欲達上述目的所使用的主要技術手段係令該路燈控制 系統包含有： 201135123 資料 環境亮度資料處理單元，係儲存當地環境亮度變化 -主控制器，係連接至該環境亮度資料處理單元，係 用以獲得目前環境亮度資料，並依目前亮度值決定控制路 燈亮度的控制訊號；及。 r"垃儿度調整益’係串接於路燈的電力線’且其控制端 係連接至該主控制，你+ “ ° …主控制器傳來的控制訊號調整 其電阻值，以改變路燈的電流大小。 =上述可知，由於主控制器輸出至該亮度調整器的控 照目前環境亮度而決定，-旦亮度調整器的電 此一控制訊號調整後，即能隨著環境亮度變化， 而緩慢調升或調降路燈之雷、士 亮度變化速率而令路燈照明光線隨著環境 一 、D t"、、明党度；是以，本發明可隨著環境 7C度改變，提供適當,日3明来 不僅能提供用路人有效昭㈣間點滅照明光線； 即點亮照明之耗電缺陷。 巴禾日 較=也，上述環境亮度資料處理單元係整合 "内，令各路燈可獨立控制其照明光線強弱。 飼服=配ίΓ境亮度f料處理單元係為-遠端管理 主控制器的電力線網路單元…：至本地各路燈的 的適地性亮度控制架構 乂貫現線上分散式或集中式 本發明另幸父佳目的係提供-種主動偵知路燈故障狀 態的控制系統’亦即該主 故障狀 路燈的電力線，以取得 > 透過—數位電錶連接至 亥路燈電源的電壓值及電流值，並 201135123 器依據判斷路燈的電壓值及電、”會…，由管理飼服 是以，可提供路燈管理單位=常運作; 燈進行維修;此外，該數位電錶可=提=損壞路 或功率因子，以確認目前路燈電源使用二率因數值 【實施方式】 請參閱第-圖所示，係為本發明依環境光線變化速率 籲調整亮度的路燈控制系統的第一較佳實施例，其包含有·· ▲:環境亮度資料處理單元（1G)，係儲存當地環境亮度 變化資料；於本實施例中，該環境亮度資料處理單元⑽ 係主要包含有一亮度感知器⑴），如第二圖所示係設於 對應路燈外，依環境亮度輪出對應的電子訊號； -主控制器（2G) ’係連接至該環境亮度資料處理單元 (1〇)，係用以獲得目前環境亮度資料，並依目前亮度值決 定控制路燈亮度的控制訊號；於本實施例中，該主控制器（2〇) 瞻係連接至該亮度感知器（1 υ，直接獲得目前本地路燈環境 OC度值，又，该主控制器係内建一亮度調整程序，且連接 一記憶體（201); 一亮度調整器（21 )，係串接於路燈的電力線（4彳），且其 控制端係連接至該主控制器（2〇)，依照主控制器（2〇)傳來的 控制訊號調整其電阻值，以改變路燈的電流大小； 一電力線網路單元（22)，係透過一搞合器（221)麵接於 路燈電力線（41)，並與該主控制器（20)連接，該主控制器（20) 係透過此一電力線網路單元（22)連結至電力線網路，進而 5 201135123 與一遠端管理主機（30)的電力線網路頭端裝置（31)連結， 如第二圖所示，而與遠端管理主機（3〇)進行雙向通訊；又 該電力線網路單元（2)進一步提供一網路連接埠（222)(如 RJ45)，與一般網路裝置連接； 一數位電錶（23) ’係連接至路燈電力線（41)及主控制 盗（20) ’將電力線（41)電壓值及電流值，並輸出至該主控 制器（20) ’由該主控制器（3〇)透過電力線網路單元（22)向遠 端管理主機（30)回報本地路燈之電壓值、電流值、功率值（功 Φ 率因數值或功率因子）、瓦特數等電力資料； 一電源開關（24)，係串接於電力線（41)與該亮度調整 器（21) ’以啟閉該亮度調整器（21);及 電源供應器（25)，係連接至電力線（41)，將電力線（41) 之父流電源轉換為直流電源提供予上述元件作為工作電 源。 上述亮度調整器（21)進一步包含有：201135123 VI. Description of the Invention: [Technical Field] The present invention relates to a streetlight lighting control system, and more particularly to a streetlight control system capable of adjusting brightness according to the rate of change of ambient light. [Prior Art] The brightness of the headlights is controlled by the brightness sensor as the component that senses the uniformity of the environment. Once the ambient brightness is lower than the default value of the brightness sensor, the light is immediately turned on by φ; otherwise, the street light is turned off. However, the brightness of the sky is not instantaneous, so it often causes the darkness of the sky to be lit, or the poor lighting conditions that are extinguished when the sky is not bright. The former is a waste of electricity, and the latter is a danger of using passers-by. In addition, 'often I can't see the street lights that can't be turned off. It's not that I can't provide illumination at night, or it's still a waste of electricity when the daylight is full." ^The current spotlight control must provide better control system. 'To maintain the safety of passers-by' and to save electricity. SUMMARY OF THE INVENTION In view of the above descriptions of various shortcomings of streetlight control systems, the primary object of the present invention is to provide a streetlight control system that adjusts brightness according to ambient light rate of change. The main technical means used to achieve the above objectives is that the street light control system includes: 201135123 Data environment brightness data processing unit, which stores the local environment brightness change - the main controller is connected to the ambient brightness data processing unit, which is used Obtaining the current ambient brightness data, and determining a control signal for controlling the brightness of the street light according to the current brightness value; r"Rage adjustment is 'connected to the power line of the streetlight' and its control terminal is connected to the main control, you + ° ° ... the control signal from the main controller adjusts its resistance value to change the current of the street lamp Size = The above can be seen, because the main controller outputs the brightness of the current control of the brightness adjuster to determine the current ambient brightness, once the brightness adjuster's control signal is adjusted, it can slowly adjust with the ambient brightness Increasing or lowering the rate of change of the brightness of the street lamp and the brightness of the lamp, so that the lighting of the street lamp follows the environment, D t", and the party degree; therefore, the invention can be appropriately changed with the environment 7C degree, the day 3 It can not only provide the use of passers-by to effectively illuminate the lighting; it is to illuminate the power consumption defects of the lighting. Bahe Daily = also, the above ambient brightness data processing unit is integrated, so that each street lamp can independently control its The intensity of the lighting is strong. The feeding service = the brightness of the material processing unit is - the power line network unit of the remote management main controller...: the locality brightness control structure to the local street lights The present invention, in addition to the above-mentioned method, provides a control system for actively detecting the fault state of the street lamp, that is, the power line of the main faulty street lamp, to obtain a > through-digital electric meter connected to the power supply of the street lamp. Voltage value and current value, and 201135123 based on judging the voltage value of the street lamp and electricity, "will..., by the management feeding service, can provide street lamp management unit = normal operation; lamp for maintenance; in addition, the digital meter can = = Damage road or power factor to confirm the current street lamp power usage rate factor [Embodiment] Please refer to the figure - figure, which is the first preferred method of the street lamp control system according to the ambient light change rate. In the embodiment, the ambient brightness data processing unit (1G) stores the local environment brightness change data. In the embodiment, the ambient brightness data processing unit (10) mainly includes a brightness sensor (1). As shown in the second figure, it is set outside the corresponding street light, and the corresponding electronic signal is rotated according to the ambient brightness; - the main controller (2G) is connected to the ambient brightness The processing unit (1〇) is used to obtain the current ambient brightness data, and determines the control signal for controlling the brightness of the street light according to the current brightness value; in this embodiment, the main controller (2〇) is connected to the brightness sensing (1 υ, directly obtain the current local street light environment OC degree value, in addition, the main controller has a built-in brightness adjustment program, and is connected to a memory (201); a brightness adjuster (21) is connected in series The power line of the street lamp (4彳), and its control end is connected to the main controller (2〇), and the resistance value is adjusted according to the control signal transmitted from the main controller (2〇) to change the current of the street lamp; The power line network unit (22) is connected to the street light power line (41) through a merging device (221) and connected to the main controller (20), and the main controller (20) is connected to the power line network. The road unit (22) is connected to the power line network, and then 5 201135123 is connected with the power line network head end device (31) of a remote management host (30), as shown in the second figure, and the remote management host (3〇) ) for two-way communication; and the power line network unit ( 2) Further provide a network connection (222) (such as RJ45) to connect with the general network device; a digital meter (23) 'connects to the street light power line (41) and the main control thief (20) 'will power line ( 41) voltage value and current value, and output to the main controller (20) 'The main controller (3〇) transmits the voltage value of the local street lamp to the remote management host (30) through the power line network unit (22) , current value, power value (power Φ rate factor or power factor), wattage and other power data; a power switch (24), connected in series with the power line (41) and the brightness adjuster (21) 'open and close The brightness adjuster (21) and the power supply (25) are connected to the power line (41), and convert the parent current power of the power line (41) into a DC power source to provide the above components as an operating power source. The brightness adjuster (21) further includes:
一可程式參考電壓模組（211)，係連接至該主控制器 (2〇)，以接收控制訊號，並加以轉換為對應的亮度參考值，· -亮度控制單元（212)，係連接至該可程式參考電壓模 組（211)，係取得該亮度參考值；及 一調光器（213)，㈣接於電力線⑷）上，其控制端係 ㈣㈣以控制單元{21)’由該亮度控制單元（212)依昭 冗度參考值調整該調光器（213)的電阻值，進而改變電力線 41)上的電流大小，·其中電阻值與電力線雷^ 〇电刀線電流係呈反比； 於本貫施例中，該調光器（213)係為—可變電阻器。 請配合參閱第三圖所示，係為上述數位電錄（23)的方 201135123 塊圖，其包含有： 一電壓檢知器（231)’係耦接至電力線（41 )，以量測該 電力線（41)的電壓值； 一電流檢知器（232) ’係耦接至電力線（41 )，以量測該 電力線（41)的電流值； 一數位訊號處理器（233)，係連接至該電壓及電流檢知 器（231)(232)，以將該電力線（41)的電壓值及電流值轉換 為數位訊號後傳送至主控制器（2〇)。 • 請配合參閱第四A圖，本發明主控制器（20)的亮度調 整程序係包含以下步驟： 週期性獲得環境亮度值（S1 1); 判斷目前環境亮度值是否已改變（S12)，若否回到第— 步驟；反之執行下一步驟； 依據環境亮度值計算對應路燈照明亮度值（S1 3); 依據路燈照明亮度值計算對應電阻值（S14); 依據電阻值計算輸出參考電壓值（CM〇Vdc),作為控制 •訊號（S15)。 當可程式參考電壓模組（211)接收此一參考電壓值，即 對應輸出參考亮度值予亮度控制單元（212)，由亮度控制單 兀（212)調整該調光器（213)的電阻值。 於本實施例架構可知，由於主控制器（2〇)可透過電力 線=網早元（22)與遠端管理伺服器（30)進行連線，因此， 本發明的環境亮度資料處理單元（1 〇)係整合於該遠端管理 ^ (3〇)中，思即，如第五A圖所示，該遠端管理伺服 时（30)係儲存一段時間的環境亮度變化資料，並儲存有— 201135123 亮度調整程序；是以，該遠端管理飼服器（3〇)可分 制斋（20)的計算負擔，而使用成本較為低廉的處理^ 主控制器用，且如第六圖及第七圖所示’路燈（40)亦不: 設置亮度感測器。又由於遠端管理伺服器（3〇)係透= 線網路中繼器（32)連接複數路燈的主控制器㈣，故力 亮度調整程序與上述主控制器的亮度調整程序略有；的 容下詳述之。 ° ’ 請配合參閱第四B圖及第五八及B圖所示，該 理伺服益（30)的亮度調整程序係包含以下步驟： 依據目前時間對照預儲之環境亮度變化曲線，週 地獲得目前環境亮度值（S21); 驟 判斷目前環境亮度值是否已改變，若否回到第—步 反之執行下一步驟（S22) ; ^ 依據環境亮度值計算對應路燈照明亮度值（S23); 依據路燈照明亮度值計算對應電阻值（S24) ; 依據電阻值計算輸出參考電壓值（〇_1〇Vdc)(s25);及 將計算出的參考電壓值於電力線網路中加以廣播 (S26)。 當本地路燈（40)的主控制器（2〇)接收到此一廣播網路 封包，則獲得參考電壓值，並將該參考電麼值輸出至可程 式參考電塵模組(2川接收此一參考㈣值，即對應輸出參 考亮度值予亮度控制單元（20)，&亮度控制單元（212)調整 該調光器（213)的電阻值。 請再參閱第八圖所示，係為本發明另一較佳實施例， 即該遠端管理㈣器（30)連接—亮度感測器⑴a)，以獲得 201135123 亮度變化曲線，並進行線上集中式㈣，惟如此系統架構 則，亮度調整程序略為調整。由於遠端管理㈣器（3〇)藉 由充度感測器（11 a)量測到的環境亮度值與各本地路燈環境 亮度值並不㈣’因此令亮度變化曲線於對照日升及日落 時間區間Θ，如第九圖所示’為日落時的亮度變化真實與 理心曲線L(T)、L (T)，以及照明亮度變化真實與理想曲線 B(T)、B’(T)，進-步切割成n個時槽（T1〜Tn + i)，各時槽 對應的環境亮度值並不相同。 誠如第十圖所示，於本實施例該遠端伺服器的亮度調 整程序包含以下步驟： 依據時槽順序取得其對照環境亮度值（S31); 依據環境亮度值計算對應路燈照明亮度值（S32); 依據路燈照明亮度值計算對應電阻值（S33广 依據電阻值計算輸出參考電壓值（〇_1〇VdJ(S34); 將計算出的參考電壓值於電力線網路t加以廣播 (S35); 判斷目前時槽是否為第N個，若是則結束；若否則回 到第一步驟（S36)。 此外，上述遠端管理伺服器（3〇)亦可内建複數路燈的 環境亮度變化曲線，進行線上分散式控制，即可分別依據 各路燈環境亮度變化曲線計算目前環境亮度對應的控制訊 號配合第十-圖所不，本實施例的亮度調整程序係包含 以下步驟： 依據目別％間對照預儲之環境亮度變化曲線，以獲得 目前環境亮度值（S41); 201135123 依據環境亮度值計算對應路燈照明亮度值（S42); 判斷目前環境亮度值是否已改變，若否回到第一步 驟；反之執行下一步驟； 依據路燈照明亮度值計算對應電阻值（S43); 依據電阻值計算輸出參考電壓值（0-1 0VDC)(S44);及 將計算出的參考電壓值透過電力線網路輪出至對應此 一環境亮度變化曲線的路燈主控制器（S45)。 此外，上述各實施例的遠端管理伺服器進一步儲存有 鲁 路燈故障债知程序，亦即該主控制器係透過-數位電錶 連接至路燈的電力線，以取得該路燈電源的電壓值及電流 •並透過電力線網路單元回報遠端之管理伺服器，由管 理祠服器執行該路燈故障摘知程序，依據判斷路燈的電塵 值及電流值’判斷是否正常運作；是以，可提供路燈管理 早位偵知路燈狀態，即時對損壞路燈進行維修；此外，該 ▲電錶可進步提供功率因數值或功率因子，以確認目 前路燈電源使用的有效率。 【圖式簡單說明】 第® .係本發明路燈控制系統之第—較佳實施例的 電路方塊圖。 統之第二較佳實施例的 第二圖：係本發明路燈控制系 系統架構圖。 第三圖：係本發明數位電錶的電路方塊圖。 第四A圖：係第一圖的亮度調整程序流程圖A programmable reference voltage module (211) is connected to the main controller (2〇) to receive the control signal and convert it into a corresponding brightness reference value, and the brightness control unit (212) is connected to The programmable reference voltage module (211) obtains the brightness reference value; and a dimmer (213), (4) connected to the power line (4), and the control end (4) (4) to the control unit {21)' The control unit (212) adjusts the resistance value of the dimmer (213) according to the reference value of the redundancy, thereby changing the magnitude of the current on the power line 41), wherein the resistance value is inversely proportional to the current line of the power line lightning circuit; In the present embodiment, the dimmer (213) is a variable resistor. Please refer to the third figure shown in the third figure, which is the 201135123 block diagram of the above-mentioned digital recording (23), which includes: a voltage detector (231) is coupled to the power line (41) to measure the a voltage value of the power line (41); a current detector (232) is coupled to the power line (41) to measure the current value of the power line (41); a digital signal processor (233) is connected to The voltage and current detector (231) (232) converts the voltage value and current value of the power line (41) into a digital signal and transmits the signal to the main controller (2). • Referring to Figure 4A, the brightness adjustment program of the main controller (20) of the present invention comprises the following steps: periodically obtaining an ambient brightness value (S1 1); determining whether the current ambient brightness value has changed (S12), if No return to the first step; otherwise, perform the next step; calculate the corresponding street lamp illumination brightness value according to the ambient brightness value (S1 3); calculate the corresponding resistance value according to the street lamp illumination brightness value (S14); calculate the output reference voltage value according to the resistance value ( CM〇Vdc), as a control signal (S15). When the programmable reference voltage module (211) receives the reference voltage value, that is, corresponding to the output reference brightness value to the brightness control unit (212), the resistance value of the dimmer (213) is adjusted by the brightness control unit (212). . According to the architecture of the embodiment, since the main controller (2〇) can be connected to the remote management server (30) through the power line=network early element (22), the ambient brightness data processing unit of the present invention (1) 〇) is integrated in the remote management ^ (3〇), thinking, as shown in Figure 5A, the remote management servo (30) is to store the ambient brightness change data for a period of time, and stored - 201135123 Brightness adjustment procedure; that is, the remote management feeding device (3〇) can be divided into the calculation burden of the fasting (20), and the processing cost is relatively low, and the main controller is used, and as shown in the sixth figure and the seventh The picture street light (40) is also not shown: Set the brightness sensor. Moreover, since the remote management server (3〇) is a main controller (4) that connects the plurality of street lamps through the network network repeater (32), the brightness adjustment program and the brightness adjustment program of the above main controller are slightly different; Let's take a closer look. ° ' Please refer to the fourth B picture and the fifth and eighth pictures, the brightness adjustment program of the servo (30) includes the following steps: According to the current time, compare the pre-stored ambient brightness curve, obtain weekly The current ambient brightness value (S21); judging whether the current ambient brightness value has changed, if not returning to the first step, and vice versa, performing the next step (S22); ^ calculating the corresponding street lamp illumination brightness value according to the ambient brightness value (S23); The street lamp illumination brightness value is calculated corresponding to the resistance value (S24); the output reference voltage value (〇_1〇Vdc) is calculated according to the resistance value (s25); and the calculated reference voltage value is broadcasted in the power line network (S26). When the main controller (2〇) of the local street lamp (40) receives the broadcast network packet, the reference voltage value is obtained, and the reference power value is output to the programmable reference dust module. A reference (four) value, that is, corresponding to the output reference brightness value to the brightness control unit (20), & brightness control unit (212) adjusts the resistance value of the dimmer (213). Please refer to the eighth figure, Another preferred embodiment of the present invention, that is, the remote management (four) device (30) is connected to the brightness sensor (1) a) to obtain the 201135123 brightness variation curve and to perform on-line centralized (4), but the system architecture, brightness adjustment The program is slightly adjusted. Since the remote management (four) device (3〇) measures the ambient brightness value measured by the charging sensor (11 a) and the local street lamp ambient brightness value is not (four) 'thus, the brightness change curve is in the control day and sunset The time interval Θ, as shown in the ninth figure, is the true and rational curve L(T), L (T) for the brightness change at sunset, and the true and ideal curves B(T), B'(T) The step-by-step cutting is performed into n time slots (T1~Tn + i), and the ambient brightness values corresponding to the respective time slots are not the same. As shown in the tenth figure, the brightness adjustment procedure of the remote server in the embodiment includes the following steps: obtaining the contrast brightness value according to the time slot sequence (S31); calculating the corresponding street lamp brightness value according to the ambient brightness value ( S32); calculating the corresponding resistance value according to the brightness value of the street lamp illumination (S33 widely calculates the output reference voltage value according to the resistance value (〇_1〇VdJ (S34); broadcasting the calculated reference voltage value to the power line network t (S35) Determining whether the current time slot is the Nth, and if so, ending; if not, returning to the first step (S36). In addition, the remote management server (3〇) may also have a built-in ambient light brightness curve of the plurality of street lights. The on-line decentralized control can calculate the control signal corresponding to the current ambient brightness according to the ambient brightness curve of each street lamp, and the tenth-figure is not included. The brightness adjustment program of the embodiment includes the following steps: Pre-stored ambient brightness curve to obtain the current ambient brightness value (S41); 201135123 Calculate the corresponding street lamp illumination brightness value according to the ambient brightness value (S42); Whether the ambient brightness value has changed, if not return to the first step; otherwise, perform the next step; calculate the corresponding resistance value according to the street lamp illumination brightness value (S43); calculate the output reference voltage value (0-1 0VDC) according to the resistance value (S44 And passing the calculated reference voltage value through the power line network to the street lamp main controller corresponding to the ambient brightness change curve (S45). Further, the remote management server of each of the above embodiments further stores the street lamp. The fault-solving procedure, that is, the main controller is connected to the power line of the street lamp through the digital-electric meter to obtain the voltage value and current of the street lamp power supply, and the remote management server is reported through the power line network unit. The service device executes the street lamp fault extraction program, and judges whether the street lamp is electrically operated according to the judgment of the electric dust value and the current value of the street lamp; that is, the street lamp management can be provided to detect the state of the street lamp early, and the damaged street lamp can be repaired immediately; ▲The meter can improve the power factor value or power factor to confirm the current efficiency of street lamp power supply. [Simplified description] A block diagram of a first preferred embodiment of the street lamp control system of the present invention. A second diagram of a second preferred embodiment of the present invention is a system diagram of a street lamp control system of the present invention. Circuit block diagram of the electric meter. Figure 4A: Flow chart of the brightness adjustment program of the first figure
LSI 10 201135123 第四B圖.·係第二圖的亮度調整程序流程圖。 第五A圖：係本發明環境亮度變化曲線圖。 第五B圖：係本發明照明亮度變化曲線圖。 第六圖：係本發明路燈控制系統之第三較佳實施例的 電路方塊圖。 第七圖：係本發明路燈控制系統之第三較佳實施例的 系統架構圖。 第八圖：係本發明路燈控制系統之第四較佳實施例的 φ 系統架構圖。 第九圖：係本發明應用於第八圖的環境亮度曲線圖。 第十圖：係第八圖的亮度調整程序流程圖。 第十一圖：係第七圖的另一亮度調整程序流程圖。 【主要元件符號說明】 (1 0)環境亮度資料處理單元 (2〇)主_控制器 (21) 亮度調整器 (21 2)亮度控制單元 (22) 電力線網路單元 (222)網路連接埠 (231)電壓檢知器 (233)數位訊號處理器 (25)電源供應器 (31)電力線頭端設備 (40)路燈 (11) (11 a)亮度感測器 (201)記憶體 (211)可程式參考電壓模組 (213)調光器 (221)耦合器 (23) 數位電錶 (2 3 2)電流檢知器 (24) 電源開關 (30)遠端管理伺服器 (32)電力線網路中繼器 (41)電力線 11LSI 10 201135123 Figure 4B. Flowchart of the brightness adjustment procedure in the second figure. Figure 5A is a graph showing the change in ambient brightness of the present invention. Figure 5B is a graph showing the change in illumination brightness of the present invention. Figure 6 is a block diagram of a circuit of a third preferred embodiment of the street light control system of the present invention. Figure 7 is a system architecture diagram of a third preferred embodiment of the street light control system of the present invention. Figure 8 is a φ system architecture diagram of a fourth preferred embodiment of the street lamp control system of the present invention. Ninth diagram: The ambient brightness curve of the present invention applied to the eighth figure. Figure 10: Flow chart of the brightness adjustment procedure of the eighth figure. Figure 11: Flowchart of another brightness adjustment program in the seventh figure. [Main component symbol description] (1 0) Ambient brightness data processing unit (2〇) main_controller (21) Brightness adjuster (21 2) Brightness control unit (22) Power line network unit (222) Network connection埠(231) Voltage detector (233) Digital signal processor (25) Power supply (31) Power line head device (40) Street light (11) (11 a) Brightness sensor (201) Memory (211) Programmable Voltage Reference Module (213) Dimmer (221) Coupler (23) Digital Meter (2 3 2) Current Detector (24) Power Switch (30) Remote Management Server (32) Power Line Network Repeater (41) power line 11