TWI727606B - System of estimating maintenance time of chiller and the method thereof - Google Patents
System of estimating maintenance time of chiller and the method thereof Download PDFInfo
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Abstract
Description
本發明係有關於一種系統及方法，尤其是指一種冰水主機保養預估系統及其方法。The present invention relates to a system and method, in particular to a system and method for the maintenance and estimation of an ice water main engine.
冰水主機為一種廣泛應用於冷氣空調的先前技術，係在一冷媒循環路徑上至少設置有一壓縮機、一冷凝器、一膨脹閥與一蒸發器。一般而言，蒸發器是用來產生冰水以供後續產生冷氣之用，冷凝器則是廢熱產生的所在位置。The ice water main engine is a prior art widely used in air-conditioning air-conditioning. At least one compressor, one condenser, one expansion valve and one evaporator are arranged on a refrigerant circulation path. Generally speaking, the evaporator is used to produce ice water for subsequent generation of cold air, and the condenser is where the waste heat is generated.
先前技術中的冰水主機大致上採用定期保養的方式，舉例來說，可能每一季、每半年保養一次。然而，定期保養的方式可能造成冰水主機過早保養或是過晚保養等保養時機不精確所衍生出的種種問題。而若要更精確的判斷冰水主機的保養時機，有需要增設其他感測器，感測冰水主機的多種參數以進行判斷，容易造成成本提升卻不一定符合經濟效益等問題。因此，先前技術中，判斷冰水主機的保養時機存在改進的空間。The ice water main engine in the prior art generally adopts a regular maintenance method. For example, it may be maintained every quarter or half a year. However, the method of regular maintenance may cause various problems arising from inaccurate maintenance timing, such as premature maintenance or late maintenance of the ice water main engine. In order to judge the maintenance timing of the ice water host more accurately, it is necessary to add other sensors to sense various parameters of the ice water host for judgment, which may easily lead to problems such as cost increase but not necessarily economic benefits. Therefore, in the prior art, there is room for improvement in determining the maintenance timing of the ice water main engine.
有鑒於在先前技術中，定期保養可能造成冰水主機保養時機的不精確，精確的判斷冰水主機的保養時機又會造成成本提升等問題。本發明之一主要目的係提供一種冰水主機保養預估系統，用以解決先前技術中的至少一個問題。In view of the fact that in the prior art, regular maintenance may cause inaccuracies in the maintenance timing of the chilled water host, accurate judgment of the maintenance timing of the chilled water host will cause problems such as increased costs. One of the main objectives of the present invention is to provide a maintenance and estimation system for the ice water main engine to solve at least one of the problems in the prior art.
本發明為解決先前技術之問題，所採用之必要技術手段為提供一種冰水主機保養預估系統，用以通信連結於複數個冰水主機，每一冰水主機具有一主機資料，並在每一工作日期運轉一運轉時間後產生複數個主機運轉數據，且冰水主機保養預估系統包含一資料庫、一輸入模組、一數據處理模組、一健康值計算模組與一保養值計算模組。In order to solve the problems of the prior art, the necessary technical means adopted by the present invention is to provide an ice water host maintenance and estimation system for communication and connection to a plurality of ice water hosts, each ice water host has a host data, and each ice water host has a host data. A plurality of host operating data are generated after one working day and one operating time, and the ice water host maintenance estimation system includes a database, an input module, a data processing module, a health value calculation module and a maintenance value calculation Module.
資料庫對應於冰水主機而儲存有複數個上述之主機資料與主機運轉數據。輸入模組用以輸入一起始日期與一指定冰水主機之一指定主機資料。數據處理模組通信連結輸入模組與資料庫，用以依據指定主機資料，在主機運轉數據中篩選並處理出對應起始日期之工作日期至對應一當前日期之工作日期所對應之複數個選取運轉數據。健康值計算模組通信連結數據處理模組，用以接收選取運轉數據，並據以計算出指定冰水主機之每一工作日期之一健康值。保養值計算模組通信連結健康值計算模組，並將一設定區間內之所有上述之健康值加以平均以計算出一保養值，藉以計算出每一工作日期之保養值。The database corresponds to the ice water host and stores a plurality of the above host data and host operating data. The input module is used to input a start date and a designated host data of a designated ice water host. The data processing module communicates with the input module and the database, which is used to filter and process the multiple selections corresponding to the working date corresponding to the starting date to the working date corresponding to the current date based on the specified host data. Operational data. The health value calculation module communicates with the data processing module to receive selected operating data and calculate a health value for each working date of the designated ice water host. The maintenance value calculation module communicates with the health value calculation module, and averages all the above health values in a set interval to calculate a maintenance value, thereby calculating the maintenance value for each working date.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統，更包含一警示模組，警示模組係通信連結該保養值計算模組，用以接收該保養值，並在該保養值大於一保養門檻值時，產生一保養警示資訊。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make the ice water main engine maintenance estimation system, and further includes a warning module, which is connected to the maintenance value calculation module by communication. The maintenance value is received, and when the maintenance value is greater than a maintenance threshold value, a maintenance warning message is generated.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統中之警示模組，包含一差值計算單元、一判斷單元與一警示單元。差值計算單元接收保養值，並計算保養值與保養門檻值之一差值。判斷單元通信連結差值計算單元，用以接收差值，並在判斷出差值介於0與一差值門檻值時，產生一第一判斷信號；並在判斷出差值大於差值門檻值時，產生一第二判斷信號。警示單元通信連結判斷單元，用以在接收到第一判斷信號時，產生保養警示資訊中之一輕微警示資訊，並在接收到第二判斷信號時，產生保養警示資訊中之一嚴重警示資訊。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is the warning module in the ice water main engine maintenance and estimation system, which includes a difference calculation unit, a judgment unit and a warning unit. The difference calculation unit receives the maintenance value, and calculates the difference between the maintenance value and one of the maintenance threshold values. The judging unit communicates with the difference calculation unit to receive the difference, and when it is judged that the difference is between 0 and a difference threshold, a first judgment signal is generated; and when it is judged that the difference is greater than the difference threshold When, a second judgment signal is generated. The warning unit communicates with the judging unit for generating one of the minor warning information in the maintenance warning information when the first judging signal is received, and generating one of the serious warning information in the maintenance warning information when the second judging signal is received.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統中之數據處理模組，包含一格式轉換單元與一數據選取單元。格式轉換單元對主機運轉數據進行格式轉換。數據選取單元對主機運轉數據進行篩選。其中，主機運轉數據進行格式轉換與篩選後形成選取運轉數據。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is the data processing module in the ice water main engine maintenance and estimation system, which includes a format conversion unit and a data selection unit. The format conversion unit performs format conversion on the host operating data. The data selection unit screens the operating data of the host. Among them, the operating data of the main engine is formatted and filtered to form selected operating data.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統中，每一選取運轉數據係一具有一冰水溫度值之冰水溫度資料，當指定冰水主機處於一正常狀態時，運轉時間包含一正常振盪時間與一穩態時間，選取運轉數據包含複數個位於正常振盪時間之振盪運轉數據與複數個位於穩態時間之穩態運轉數據；當指定冰水主機處於一異常狀態時，運轉時間包含一異常振盪時間，選取運轉數據包含複數個位於異常振盪時間之異常運轉數據，且健康值計算模組包含一過衝值計算單元、一收斂時間比率計算單元、一誤差平均計算單元與一健康值計算單元。過衝值計算單元在正常狀態下接收振盪運轉數據後，用以計算每一冰水溫度值減去一溫度設定值之一溫度差值，並將所有溫度差值中之最小者取絕對值定義為一過衝值；在異常狀態下接收異常運轉數據後，用以計算每一冰水溫度值減去溫度設定值之溫度差值，並將第M筆以後之溫度差值中之最大者定義為過衝值，其中，M大於等於2。收斂時間比率計算單元在正常狀態下利用正常振盪時間除以運轉時間，計算出一收斂時間比率值；在異常狀態下利用異常振盪時間除以運轉時間，計算出收斂時間比率值。誤差平均計算單元在正常狀態下接收穩態運轉數據後，用以計算穩態運轉數據中之每一冰水溫度值減去溫度設定值之溫度差值，並將所有上述之溫度差值取絕對值後加以平均，藉以運算出一誤差平均值；在異常狀態下接收第M筆及第M筆以後之異常運轉數據後，用以計算每一冰水溫度值減去溫度設定值之溫度差值，並將所有上述之溫度差值取絕對值後加以平均，藉以運算出誤差平均值。健康值計算單元通信連結過衝值計算單元、收斂時間比率計算單元與誤差平均計算單元，用以利用過衝值、收斂時間比率值與誤差平均值計算出健康值。其中，指定冰水主機處於正常狀態時，第N筆以後之溫度差值之至少一者係小於1；指定冰水主機處於異常狀態時，第N筆以後之所有之溫度差值係大於1，N大於2。On the basis of the above-mentioned necessary technical means, one of the subsidiary technical means derived from the present invention is to make the ice water main engine maintenance estimation system, each selected operating data is an ice water temperature data with an ice water temperature value, when specified When the ice water main engine is in a normal state, the operation time includes a normal oscillation time and a steady state time, and the selected operation data includes a plurality of oscillation operation data in the normal oscillation time and a plurality of steady state operation data in the steady state time; When the designated ice water host is in an abnormal state, the operating time includes an abnormal oscillation time, the selected operating data includes a plurality of abnormal operation data at the abnormal oscillation time, and the health value calculation module includes an overshoot value calculation unit and a convergence time Ratio calculation unit, an error average calculation unit and a health value calculation unit. After the overshoot value calculation unit receives the oscillating operation data in the normal state, it is used to calculate the temperature difference of each ice water temperature minus a temperature setting value, and take the absolute value of the smallest of all the temperature differences to define It is an overshoot value; after receiving abnormal operation data in an abnormal state, it is used to calculate the temperature difference of each ice water temperature value minus the temperature setting value, and define the largest of the temperature difference values after the Mth pen Is the overshoot value, where M is greater than or equal to 2. The convergence time ratio calculation unit calculates a convergence time ratio value by dividing the normal oscillation time by the operation time in a normal state; in an abnormal state, it calculates the convergence time ratio value by dividing the abnormal oscillation time by the operation time. After the error average calculation unit receives the steady-state operating data under normal conditions, it is used to calculate the temperature difference of each ice water temperature value minus the temperature setting value in the steady-state operating data, and take all the above temperature differences as absolute After the value is averaged, an error average value can be calculated; after receiving the M-th and M-th abnormal operation data in an abnormal state, it is used to calculate the temperature difference of each ice water temperature value minus the temperature setting value , And take the absolute value of all the above-mentioned temperature differences and average them to calculate the error average value. The health value calculation unit communicates with the overshoot value calculation unit, the convergence time ratio calculation unit and the error average calculation unit, and is used to calculate the health value by using the overshoot value, the convergence time ratio value and the error average value. Among them, when the designated ice water host is in a normal state, at least one of the temperature differences after the Nth pass is less than 1; when the designated ice water host is in an abnormal state, all the temperature differences after the Nth pass are greater than 1. N is greater than 2.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統中之健康值計算單元，係將過衝值乘以一第一權重值、將收斂時間比率值乘以一第二權重值以及將誤差平均值乘以一第三權重值，並予以加總以計算出健康值。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make the health value calculation unit in the ice water main engine maintenance and estimation system multiply the overshoot value by a first weight value and calculate the convergence time. The ratio value is multiplied by a second weight value and the error average value is multiplied by a third weight value, and they are added together to calculate the health value.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統，更包含一區間設定模組，且區間設定模組通信連結保養值計算模組，用以受操作地設定區間。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make the ice water main engine maintenance estimation system, which further includes an interval setting module, and the interval setting module communicates with the maintenance value calculation module. To set the interval operatively.
在上述必要技術手段的基礎下，本發明所衍生之一附屬技術手段為使冰水主機保養預估系統，更包含一顯示模組，且顯示模組通信連結保養值計算模組，用以接收並顯示起始日期至當前日期所有之保養值。On the basis of the above-mentioned necessary technical means, an auxiliary technical means derived from the present invention is to make the ice water main engine maintenance estimation system, which further includes a display module, and the display module communicates with the maintenance value calculation module to receive And display all the maintenance values from the start date to the current date.
本發明為解決先前技術之問題，所採用之必要技術手段為另外提供一種冰水主機保養預估方法，利用如前述之冰水主機保養預估系統加以實施，並包含：(a) 利用資料庫，儲存有主機資料與主機運轉數據；(b) 利用輸入模組，輸入起始日期與指定冰水主機之指定主機資料；(c) 利用數據處理模組，篩選並處理出選取運轉數據；(d) 利用健康值計算模組，接收選取運轉數據，並計算出指定冰水主機在每一工作日期之健康值；(e) 利用保養值計算模組，將設定區間內之所有健康值加以平均以計算出保養值，藉以計算出指定冰水主機在每一工作日期之保養值。In order to solve the problems of the prior art, the necessary technical means adopted by the present invention are to provide another method for the maintenance and estimation of the ice water main engine, which is implemented using the aforementioned ice water main engine maintenance and estimation system, and includes: (a) using the database , Stores the host data and host operating data; (b) Use the input module to input the start date and the designated host data of the designated ice water host; (c) Use the data processing module to filter and process the selected operating data; ( d) Use the health value calculation module to receive selected operating data, and calculate the health value of the designated ice water host on each working day; (e) Use the maintenance value calculation module to average all the health values in the set interval In order to calculate the maintenance value, the maintenance value of the designated ice water host on each working date can be calculated.
承上所述，本發明所提供冰水主機保養預估系統及其方法，利用資料庫、輸入模組、數據處理模組、健康值計算模組與保養值計算模組，計算出指定冰水主機的健康值與保養值，並利用保養值來判斷指定冰水主機的保養時機。依據實務上的數據顯示，相較於先前技術的定期保養，本發明判斷的保養時機更為精確，也不需要額外的感測器與參數，只需利用冰水主機在運轉後產生的主機運轉數據即可進行計算與預估。In summary, the ice water main engine maintenance estimation system and method provided by the present invention uses the database, input module, data processing module, health value calculation module and maintenance value calculation module to calculate the specified ice water The health value and maintenance value of the host, and the maintenance value is used to determine the maintenance timing of the designated ice water host. According to the data in practice, compared with the regular maintenance of the prior art, the maintenance timing determined by the present invention is more accurate, and no additional sensors and parameters are required. It only needs to use the main engine operation generated by the ice water main engine after the operation. The data can be calculated and estimated.
下面將結合示意圖對本發明的具體實施方式進行更詳細的描述。根據下列描述和申請專利範圍，本發明的優點和特徵將更清楚。需說明的是，圖式均採用非常簡化的形式且均使用非精準的比例，僅用以方便、明晰地輔助說明本發明實施例的目的。The specific embodiments of the present invention will be described in more detail below in conjunction with the schematic diagrams. According to the following description and the scope of patent application, the advantages and features of the present invention will be more clear. It should be noted that the drawings all adopt very simplified forms and all use imprecise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.
請參閱第一圖至第二圖，其中，第一圖係顯示本發明較佳實施例所提供之冰水主機保養預估系統之方塊圖；以及，第二圖係顯示本發明較佳實施例所提供之冰水主機保養預估方法之流程圖。如圖所示，一種冰水主機保養預估系統1及其方法用以通信連結複數個冰水主機，並包含一資料庫11、一輸入模組12、一數據處理模組13、一健康值計算模組14、一保養值計算模組15、一警示模組16、一顯示模組17與一區間設定模組18。Please refer to the first to second figures, in which, the first figure is a block diagram showing the ice water main engine maintenance and estimation system provided by the preferred embodiment of the present invention; and the second figure is a preferred embodiment of the present invention The flow chart of the maintenance estimation method for the ice water main engine provided. As shown in the figure, an ice water host maintenance and
每一冰水主機係具有一主機資料，並在每一個工作日期運轉一運轉時間後產生複數個主機運轉數據。舉例來說，冰水主機可能在12月16日運轉了8個小時，並產生複數個主機運轉數據，而且冰水主機在12月17日運轉了8個小時，並產生複數個主機運轉數據。主機運轉數據通常包含很多種數值，其中，至少包含冰水溫度值。主機運轉數據的數量則是看每筆主機運轉數據產生的頻率而定，較精確的可能為每一分鐘產生一筆主機運轉數據，也可能每兩分鐘，甚至是每五分鐘。主機資料可以是MAC位址（Media Access Control Address）、型號等。冰水溫度值，可以是冰水出口的冰水溫度值，也可以是冰水入口的冰水溫度值。工作日期指的則是冰水主機有運轉的日期。Each ice water host has a host data, and generates a plurality of host operating data after operating for a period of time on each working day. For example, the ice water host may run for 8 hours on December 16 and generate multiple host operating data, and the ice water host may run for 8 hours on December 17 and generate multiple host operating data. The main engine operating data usually contains many kinds of values, among which at least the ice water temperature value is included. The amount of host operating data depends on the frequency of each host operating data generation. It may be more accurate to generate a host operating data every minute, or every two minutes, or even every five minutes. The host data can be MAC address (Media Access Control Address), model, etc. The ice water temperature value can be either the ice water temperature value at the ice water outlet or the ice water temperature value at the ice water inlet. The working date refers to the date when the chilled water main engine is operated.
資料庫11對應所有冰水主機而儲存有所有冰水主機的主機資料與所有主機運轉數據，即步驟S101。輸入模組12用以輸入一起始日期與一指定冰水主機的一指定主機資料，即步驟S102。指定冰水主機通常是指一使用者所想要觀察或預估的上述冰水主機中的一者。The
數據處理模組13通信連結資料庫11與輸入模組12，即步驟S103，並包含一格式轉換單元131與一數據選取單元132。格式轉換單元131會將主機運轉數據進行格式轉換。數據選取單元132則是會對主機運轉數據進行篩選，其中，工作日期介在起始日期至一當前日期的所有主機運轉數據，經由格式轉換與篩選後會被定義成上述選取運轉數據。格式轉換與篩選的先後順序並不影響本發明的實施。舉例來說，指定冰水主機於1月1日被設置好且開始運轉至12月31日，1月1日至12月31日中指定冰水主機有運轉的日期皆為工作日期。使用者於12月31日（當前日期）時輸入6月1日（起始日期），數據處理模組13便會將1月1日至12月31日中符合6月1日（起始日期）至12月31日（當前日期）的工作日期的主機運轉數據篩選出來。The
健康值計算模組14通信連結數據處理模組13，用以接收選取運轉數據，並據以計算出指定冰水主機在每一工作日期的一健康值，即步驟S104。在本實施例中，健康值計算模組14包含一過衝值計算單元141、一收斂時間比率計算單元142、一誤差平均計算單元143與一健康值計算單元144。保養值計算模組15通信連結健康值計算模組14，並將一設定區間內之所有健康值加以平均以計算出一保養值，即步驟S105。因此，保養值計算模組15會計算出每一工作日期的保養值。舉例來說，設定區間為7天，5月7日的保養值即為5月1日至5月7日的健康值的平均。設定區間是由使用者依據冰水主機進行設定，也可為10天、15天、30天。換句話說，本發明是利用選取運轉數據計算出預估數值（健康值與保養值）。The health
警示模組16通信連結保養值計算模組15，用以接收保養值，並在保養值大於一保養門檻值時，產生一保養警示資訊。在本實施例中，警示模組16包含一差值計算單元161、一判斷單元162與一警示單元163。此外，警示模組16在保養值小於保養門檻值時，也可以產生一安全資訊。The
顯示模組17通信連結保養值計算模組15與警示模組16，用以顯示所有的保養值。在本實施例中，顯示模組17更可以顯示保養警示資訊與安全資訊。區間設定模組18通信連結保養值計算模組15，用以受操作地設定上述設定區間。實務上，區間設定模組18就是供使用者操作去設定上述設定區間。The
接著，請一併參閱第一圖至第五圖，其中，第三圖係顯示本發明篩選處理出之選取運轉數據之示意圖；第四圖係顯示本發明計算出之健康值與保養值之示意圖；以及，第五圖係顯示本發明計算出之保養值之另一示意圖。如圖所示，在指定冰水主機處於正常狀態下，運轉時間T包含一正常振盪時間T1與一穩態時間T2。選取運轉數據包含複數個位在正常振盪時間T1內的振盪運轉數據與複數個位在穩態時間T2內的穩態運轉數據。在指定冰水主機處於異常狀態下，運轉時間T則是包含一異常振盪時間，且選取運轉數據包含複數個位於異常振盪時間之異常運轉數據。在正常狀態下，第N筆以後的溫度差值中的至少一者會小於1；在異常狀態下，第N筆以後之所有之溫度差值皆大於1，其中，N大於2。N可能為20、30等大於2的數字，對應到指定冰水主機運轉一特定時間（例如：運轉一小時）之後。藉由第N筆以後之溫度差值是否小於1，判斷指定冰水主機是正常狀態或異常狀態。Next, please refer to the first to fifth diagrams. The third diagram is a schematic diagram showing the selected operating data filtered and processed by the present invention; the fourth diagram is a schematic diagram showing the health value and the maintenance value calculated by the present invention ; And, the fifth diagram is another schematic diagram showing the maintenance value calculated by the present invention. As shown in the figure, when the designated ice water host is in a normal state, the operating time T includes a normal oscillation time T1 and a steady state time T2. The selected operating data includes multiple digits of oscillating operating data within the normal oscillating time T1 and multiple digits of steady-state operating data within the steady-state time T2. When the designated ice water main engine is in an abnormal state, the operation time T includes an abnormal oscillation time, and the selected operation data includes a plurality of abnormal operation data at the abnormal oscillation time. In the normal state, at least one of the temperature differences after the Nth step will be less than 1; in the abnormal state, all the temperature differences after the Nth step are greater than 1, where N is greater than 2. N may be a number greater than 2, such as 20, 30, etc., corresponding to the designated ice water host operating for a specific period of time (for example: operating for one hour). According to whether the temperature difference after the Nth pen is less than 1, it is determined whether the designated ice water host is in a normal state or an abnormal state.
在正常狀態下，過衝值計算單元141會接收振盪運轉數據，並計算每一個振盪運轉數據的冰水溫度值減去一溫度設定值TeS的溫度差值，並將溫度差值中的最小者取絕對值定義為一過衝值。在本實施例中，時點t1所對應到的冰水溫度值Te1與溫度設定值TeS所形成的溫度差值H1最小。時點t2所對應到的冰水溫度值Te2與溫度設定值TeS所形成的溫度差值H2會大於溫度差值H1，故將溫度差值H1取絕對值後定義為過衝值。因溫度差值可能為正數也可能為負數，在異常狀態下，過衝值計算單元141會接收異常運轉數據，並將第M筆以後的溫度差值中的最大值定義為過衝值。In a normal state, the overshoot
在正常狀態下經過時點t3之後，大部分的選取運轉數據會進入以一溫度上限值TLU與一溫度下限值TLD所形成的一誤差帶（Error band）EB。實務上來說，溫度上限值TLU會比溫度設定值TeS多1，溫度下限值TLD則會比溫度設定值TeS少1。因此，會將時點t0至t3定義為正常振盪時間T1，時點t3之後會定義成穩態時間T2。收斂時間比率計算單元142會利用正常振盪時間T1除以運轉時間T計算出一收斂時間比率值。在異常狀態下，收斂時間比率計算單元142會利用異常振盪時間除以運轉時間T計算出收斂時間比率值。實務上，異常狀態下的收斂時間比率值大部分皆為1。誤差平均計算單元143則是在正常狀態下接收穩態運轉數據，並計算穩態運轉數據中的每一冰水溫度值與溫度設定值TeS的溫度差值，例如時點t4、t5所產生的溫度差值H3、H4。接著，誤差平均計算單元143會將所有溫度差值取絕對值後加以平均，藉以運算出一誤差平均值。在異常狀態下，誤差平均計算單元143會接收第M筆及第M筆以後之異常運轉數據，用以計算每一冰水溫度值減去溫度設定值TeS的溫度差值，並將所有上述的溫度差值取絕對值後加以平均，藉以運算出誤差平均值。其中，M大於等於2，可為2、21、31或其他大於等於2的數字。此外，M也可以等於N。After the time point t3 has passed in the normal state, most of the selected operating data will enter an error band EB formed by a temperature upper limit value TLU and a temperature lower limit value TLD. Practically speaking, the upper temperature limit TLU will be 1 more than the set temperature TeS, and the lower temperature limit TLD will be 1 less than the set temperature TeS. Therefore, the time point t0 to t3 will be defined as the normal oscillation time T1, and the time point t3 will be defined as the steady state time T2. The convergence time
健康值計算單元144通信連結過衝值計算單元141、收斂時間比率計算單元142與誤差平均計算單元143，用以接收過衝值、收斂時間比率值與誤差平均值，並據以計算出健康值。在本實施例中，健康值計算單元144會將過衝值乘以一第一權重值、將收斂時間比率值乘以一第二權重值，以及將誤差平均值乘以一第三權重值，並將上述結果予以加總而計算出健康值。上述過衝值與誤差平均值要先將溫度差值取絕對值的用意在於，避免溫度差值為負數時，在計算上會與正數相互抵銷，進而降低健康值以及以健康值計算出來的保養值的參考價值。The health
在實務上，選取運轉數據在穩態時間T2的後期，也就是接近冰水主機停止運轉的時候，選取運轉數據有可能低於溫度下限值TLD而脫離誤差帶EB，例如時點t6至t7之間。健康值計算模組14也可將時點t6至t7之間所對應到的選取運轉數據刪除，而不去計算。In practice, selecting the operating data at the later stage of the steady-state time T2, that is, when the ice water main engine stops operating, the operating data may be lower than the lower temperature limit TLD and out of the error band EB, such as the time point between t6 and t7. between. The health
保養值計算模組15會依照上述計算出來的健康值去計算保養值。第五圖顯示工作日期D1至D9的保養值，第四圖則是顯示工作日期D6至D9的健康值與保養值。為了使圖式明確便不在第五圖繪出健康值，但是第五圖的保養值與第四圖的保養值的產生方式相同。舉例來說，設定區間設定為15天時，工作日期D9的保養值為工作日期D8至工作日期D9之間的所有健康值的平均；工作日期D3的保養值為工作日期D1至工作日期D3之間的所有健康值的平均。若設定區間設定為11天時，工作日期D3的保養值為工作日期D2至工作日期D3之間的所有健康值的平均。不同的設定區間所呈現出的圖式便會有些許的差異，以本實施例來說，第五圖的設定區間為15天。The maintenance
從圖式可以明顯發現，每個工作日期的健康值振盪極大，因此，若用健康值來作為保養時機的判斷因子，參考價值有限。而保養值為設定區間內的健康值的平均，當保養值持續攀升，表示設定區間內的健康值可能維持在較高的數字或是也不斷攀升。因此，若用保養值來作為保養時機的判斷因子，其參考價值會較高。It is obvious from the diagram that the health value of each working day oscillates greatly. Therefore, if the health value is used as a judgment factor for maintenance timing, the reference value is limited. The maintenance value is the average of the health value in the set interval. When the maintenance value continues to rise, it means that the health value in the set interval may remain at a higher number or continue to rise. Therefore, if the maintenance value is used as a judgment factor for maintenance timing, its reference value will be higher.
當保養值超過一保養門檻值VTH時，警示模組16會產生保養警示資訊。更詳細的說明，差值計算單元161會接收保養值，並將保養值減掉保養門檻值VTH而得一差值。判斷單元162通信連結差值計算單元161，用以接收差值，並在判斷出差值介於0與一差值門檻值DTH時，產生一第一判斷信號；並在判斷出差值大於差值門檻值DTH時，產生一第二判斷信號。警示單元163通信連結判斷單元162，用以在接收到第一判斷信號時，產生保養警示資訊中的一輕微警示資訊，並在接收到第二判斷信號時，產生保養警示資訊中的一嚴重警示資訊。When the maintenance value exceeds a maintenance threshold value VTH, the
實務上，輕微警示資訊與嚴重警示資訊可以用顏色（黃色燈號、紅色燈號）、聲音、文字、閃爍頻率等方式進行區別，藉以提供保養警示資訊給使用者。而不論是輕微警示資訊或是嚴重警示資訊，都是提醒使用者冰水主機需要進行保養。安全資訊則是告知使用者目前無需進行保養，例如：綠色燈號。In practice, minor warning information and serious warning information can be distinguished by color (yellow light, red light), sound, text, flashing frequency, etc., so as to provide maintenance warning information to users. Regardless of whether it is a light warning message or a serious warning message, it reminds the user that the ice water host needs maintenance. The safety information informs the user that no maintenance is currently required, such as a green light.
以圖式來說，工作日期D4的保養值與保養門檻值VTH的差值超過差值門檻值DTH，故此時會產生嚴重警示資訊。工作日期D7的保養值與保養門檻值VTH的差值則介於0與差值門檻值DTH之間，故會產生輕微警示資訊。當保養值低於保養門檻值VTH時，警示模組16可以不作動也可以產生安全資訊，如工作日期D1、D2、D3、D5、D8與D9。In terms of diagrams, the difference between the maintenance value on the working date D4 and the maintenance threshold value VTH exceeds the difference threshold value DTH, so a serious warning message will be generated at this time. The difference between the maintenance value on the working date D7 and the maintenance threshold value VTH is between 0 and the difference threshold value DTH, so a slight warning message will be generated. When the maintenance value is lower than the maintenance threshold value VTH, the
需說明的是，在工作日期D4與D5之間，指定冰水主機進行保養，從圖式可以很明顯的發現，工作日期D4的保養值是驟降至工作日期D5的保養值。而在工作日期D7，指定冰水主機也進行保養，從圖式也可以明顯發現，在工作日期D5與D6之間，保養值便沒有再超過保養門檻值VTH。It should be noted that between the working dates D4 and D5, the ice water host is designated for maintenance. From the diagram, it is obvious that the maintenance value of the working date D4 is the maintenance value of the working date D5. On the working date D7, the designated ice water host is also maintained. From the diagram, it is also obvious that the maintenance value does not exceed the maintenance threshold VTH between the working days D5 and D6.
綜上所述，本發明所提供之冰水主機保養預估系統可以利用冰水溫度值推斷出健康值與保養值，並利用保養值預估冰水主機的保養時機。相較於先前技術中的定期保養，本發明可以更精確的判斷保養時機，同時也可以檢視先前進行的保養是否有達到效果。此外，本發明僅利用冰水主機一定會記錄的冰水溫度進行判斷，不用額外添加感測器感測額外的參數，因此，價格上也會較先前技術來得便宜。In summary, the ice water main engine maintenance estimation system provided by the present invention can use the ice water temperature value to infer the health value and the maintenance value, and use the maintenance value to estimate the maintenance timing of the ice water main engine. Compared with the regular maintenance in the prior art, the present invention can judge the maintenance timing more accurately, and at the same time can check whether the previous maintenance has achieved the effect. In addition, the present invention only uses the ice water temperature that the ice water host must record for judgment, and does not need to add an additional sensor to sense additional parameters. Therefore, the price will be cheaper than the prior art.
藉由以上較佳具體實施例之詳述，係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。Through the detailed description of the above preferred embodiments, it is hoped that the characteristics and spirit of the present invention can be described more clearly, and the scope of the present invention is not limited by the preferred embodiments disclosed above. On the contrary, its purpose is to cover various changes and equivalent arrangements within the scope of the patent for which the present invention is intended.
1:冰水主機保養預估系統 11:資料庫 12:輸入模組 13:數據處理模組 131:格式轉換單元 132:數據選取單元 14:健康值計算模組 141:過衝值計算單元 142:收斂時間比率計算單元 143:誤差平均計算單元 144:健康值計算單元 15:保養值計算模組 16:警示模組 161:差值計算單元 162:判斷單元 163:警示單元 17:顯示模組 18:區間設定模組 DTH:差值門檻值 D1、D2、D3、D4、D5、D6、D7、D8、D9:工作日期 EB:誤差帶 H1、H2、H3、H4:溫度差值 T:運轉時間 T1:正常振盪時間 T2:穩態時間 Te1、Te2:冰水溫度值 TeS:溫度設定值 TLU:溫度上限值 TLD:溫度下限值 t0、t1、t2、t3、t4、t5、t6、t7:時點 VTH:保養門檻值 1: Chilled water main engine maintenance estimation system 11: Database 12: Input module 13: Data processing module 131: format conversion unit 132: data selection unit 14: Health value calculation module 141: Overshoot value calculation unit 142: Convergence time ratio calculation unit 143: Error average calculation unit 144: Health value calculation unit 15: Maintenance value calculation module 16: Warning module 161: Difference calculation unit 162: Judgment Unit 163: warning unit 17: Display module 18: interval setting module DTH: Difference threshold D1, D2, D3, D4, D5, D6, D7, D8, D9: working date EB: Error band H1, H2, H3, H4: temperature difference T: Running time T1: Normal oscillation time T2: steady state time Te1, Te2: ice water temperature value TeS: temperature set point TLU: Upper temperature limit TLD: Lower temperature limit t0, t1, t2, t3, t4, t5, t6, t7: time point VTH: maintenance threshold
第一圖係顯示本發明較佳實施例所提供之冰水主機保養預估系統之方塊圖； 第二圖係顯示本發明較佳實施例所提供之冰水主機保養預估方法之流程圖； 第三圖係顯示本發明篩選處理出之選取運轉數據之示意圖； 第四圖係顯示本發明計算出之健康值與保養值之示意圖；以及 第五圖係顯示本發明計算出之保養值之另一示意圖。 The first figure shows the block diagram of the ice water main engine maintenance and estimation system provided by the preferred embodiment of the present invention; The second figure is a flow chart showing the method of maintaining and predicting the ice water main engine provided by the preferred embodiment of the present invention; The third figure is a schematic diagram showing the selected operating data obtained by the screening process of the present invention; The fourth figure is a schematic diagram showing the health value and maintenance value calculated by the present invention; and The fifth diagram is another schematic diagram showing the maintenance value calculated by the present invention.
1:冰水主機保養預估系統 1: Chilled water main engine maintenance estimation system
11:資料庫 11: Database
12:輸入模組 12: Input module
13:數據處理模組 13: Data processing module
131:格式轉換單元 131: format conversion unit
132:數據選取單元 132: data selection unit
14:健康值計算模組 14: Health value calculation module
141:過衝值計算單元 141: Overshoot value calculation unit
142:收斂時間比率計算單元 142: Convergence time ratio calculation unit
143:誤差平均計算單元 143: Error average calculation unit
144:健康值計算單元 144: Health value calculation unit
15:保養值計算模組 15: Maintenance value calculation module
16:警示模組 16: Warning module
161:差值計算單元 161: Difference calculation unit
162:判斷單元 162: Judgment Unit
163:警示單元 163: warning unit
17:顯示模組 17: Display module
18:區間設定模組 18: interval setting module
Claims (7)
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| TW109101122A TWI727606B (en) | 2020-01-14 | 2020-01-14 | System of estimating maintenance time of chiller and the method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201215824A (en) * | 2010-10-15 | 2012-04-16 | Ind Tech Res Inst | Dynamic modeling method, monitoring method for chilling system and device for monitoring chilling system |
| TW201915622A (en) * | 2017-10-05 | 2019-04-16 | 群光電能科技股份有限公司 | Forecasting method for performance |
| US20190293371A1 (en) * | 2013-02-09 | 2019-09-26 | Prime Datum Development Company, Llc | Direct-Drive System For Cooling System Fans, Exhaust Blowers And Pumps |
| EP2776771B1 (en) * | 2011-10-21 | 2019-12-25 | Prime Datum Inc. | Method for operating a cooling tower and associated variable process control system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201215824A (en) * | 2010-10-15 | 2012-04-16 | Ind Tech Res Inst | Dynamic modeling method, monitoring method for chilling system and device for monitoring chilling system |
| EP2776771B1 (en) * | 2011-10-21 | 2019-12-25 | Prime Datum Inc. | Method for operating a cooling tower and associated variable process control system |
| US20190293371A1 (en) * | 2013-02-09 | 2019-09-26 | Prime Datum Development Company, Llc | Direct-Drive System For Cooling System Fans, Exhaust Blowers And Pumps |
| TW201915622A (en) * | 2017-10-05 | 2019-04-16 | 群光電能科技股份有限公司 | Forecasting method for performance |
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