技术领域technical field
本发明涉及设备监控领域，具体涉及一种设备工作状态检测方法和设备工作状态检测装置。The invention relates to the field of equipment monitoring, in particular to a method for detecting the working state of equipment and a device for detecting the working state of the equipment.
背景技术Background technique
目前，智能化的数字家庭系统或模块正逐渐地走进普通家庭。其中，对家用电器等设备进行智能化的监控是智能家庭的核心组成部分，而要想实现设备及系统的智能化，往往需要先获得设备的工作状态(例如关机状态、待机状态、运行状态、故障状态等等)，这样才能对设备进行智能化的决策和进一步的控制，实现智能化的闭环系统。At present, intelligent digital home systems or modules are gradually entering ordinary homes. Among them, the intelligent monitoring of household appliances and other equipment is the core component of the smart home, and in order to realize the intelligentization of equipment and systems, it is often necessary to first obtain the working status of the equipment (such as shutdown status, standby status, running status, Fault status, etc.), so that intelligent decision-making and further control can be carried out on the equipment, and an intelligent closed-loop system can be realized.
目前，对于设备的工作状态的判别方法通常是采用监测设备的工作电流大小，然后将监测到的设备的工作电流大小与预设的阈值进行对比判断，最终判定出设备的工作状态。然而该类方法存在如下缺陷：阈值是固定的，一般是开发者根据常用设备的工作状态电流进行预先设定，这就不可避免地导致无法对一些特殊设备的工作状态作出准确的判断(如一些设备的运行电流比预设的待机电流阈值还低，或一些设备的待机电流比预设的运行电流还高)，从而影响智能化系统的决策。At present, the method for discriminating the working state of the equipment is usually to monitor the working current of the equipment, and then compare and judge the monitored working current of the equipment with a preset threshold, and finally determine the working state of the equipment. However, this type of method has the following defects: the threshold is fixed, and is generally preset by the developer according to the working state current of common equipment, which inevitably leads to the inability to make an accurate judgment on the working state of some special equipment (such as some The operating current of the device is lower than the preset standby current threshold, or the standby current of some devices is higher than the preset operating current), which affects the decision-making of the intelligent system.
发明内容Contents of the invention
本发明提供一种设备工作状态检测方法和设备工作状态检测装置，用于提高设备工作状态判别的准确性。The invention provides a method for detecting the working state of equipment and a device for detecting the working state of the equipment, which are used to improve the accuracy of distinguishing the working state of the equipment.
本发明第一方面提供一种设备工作状态检测方法，包括以下步骤：The first aspect of the present invention provides a method for detecting the working state of equipment, including the following steps:
A、采集设备在当前状态下的S个工作电流值，并对所述S个工作电流值进行加权平均滤波，得到所述设备当前状态下的工作电流值，其中，所述S不小于2；A. Collect S working current values of the device in the current state, and perform weighted average filtering on the S working current values to obtain the working current value of the device in the current state, wherein the S is not less than 2;
B、根据得到的所述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定所述设备当前的工作状态；B. Determine the current working state of the device according to the obtained working current value in the current state of the device and the preset working state current threshold interval;
C、根据得到的所述设备当前状态下的工作电流值，更新所述设备当前状态对应的工作状态电流阈值区间。C. Update the working state current threshold interval corresponding to the current state of the device according to the obtained working current value in the current state of the device.
本发明第二方面提供一种设备工作状态检测装置，包括：The second aspect of the present invention provides a device working state detection device, including:
第一采集单元，用于采集设备在当前状态下的S个工作电流值，其中，所述S不小于2；The first collection unit is used to collect S working current values of the device in the current state, wherein the S is not less than 2;
加权滤波单元，用于对所述第一采集单元采集的所述S个工作电流值进行加权平均滤波，得到所述设备当前状态下的工作电流值；A weighted filtering unit, configured to perform weighted average filtering on the S working current values collected by the first collecting unit, to obtain the working current value in the current state of the device;
第一确定单元，用于根据所述加权滤波单元得到的所述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定所述设备当前的工作状态；The first determining unit is configured to determine the current working state of the device according to the working current value of the device in the current state obtained by the weighted filtering unit and a preset working state current threshold interval;
更新单元，用于根据所述加权滤波单元得到的所述设备当前状态下的工作电流值，更新所述设备当前状态对应的工作状态电流阈值区间。An updating unit, configured to update the working state current threshold interval corresponding to the current state of the device according to the working current value in the current state of the device obtained by the weighted filtering unit.
由上可见，一方面，本发明通过采集设备在当前状态下的多个工作电流值进行加权平均滤波，对该设备在当前状态下的工作电流值进行确定，使得得到的该设备在当前状态下的工作电流值更为可靠；另一方面，在确定设备当前的工作状态后，根据得到设备在当前状态下的工作电流值，更新该设备当前状态对应的工作状态电流阈值区间，从而避免因电源波动或设备本身老化等原因引起设备工作状态电流变化而导致对设备的工作状态误判的弊端，进一步提高了设备工作状态判别的准确性。It can be seen from the above that, on the one hand, the present invention performs weighted average filtering by collecting multiple working current values of the device in the current state, and determines the working current value of the device in the current state, so that the obtained current value of the device in the current state The working current value of the device is more reliable; on the other hand, after determining the current working state of the device, according to the working current value of the device in the current state, update the working state current threshold interval corresponding to the current state of the device, so as to avoid the Fluctuation or aging of the equipment itself causes the current change of the working state of the equipment to cause misjudgment of the working state of the equipment, which further improves the accuracy of the identification of the working state of the equipment.
附图说明Description of drawings
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.
图1-a为本发明提供的一种设备工作状态检测方法一个实施例流程示意图；Figure 1-a is a schematic flow chart of an embodiment of a method for detecting the working state of equipment provided by the present invention;
图1-b为本发明提供的获取设备当前状态下的工作电流值的一个实施例流程示意图；Figure 1-b is a schematic flow diagram of an embodiment of obtaining the working current value of the device in the current state provided by the present invention;
图2-a为本发明提供的工作状态电流阈值区间初始值设定的一个实施例流程示意图；Figure 2-a is a schematic flow chart of an embodiment of the initial value setting of the working state current threshold interval provided by the present invention;
图2-b为本发明提供的确定工作状态电流阈值区间的中心值的一个实施例流程示意图；Fig. 2-b is a schematic flow chart of an embodiment of determining the central value of the operating state current threshold interval provided by the present invention;
图3为本发明提供的一种设备工作状态检测装置一个实施例结构示意图。Fig. 3 is a schematic structural diagram of an embodiment of a device working state detection device provided by the present invention.
具体实施方式detailed description
为使得本发明的发明目的、特征、优点能够更加的明显和易懂，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而非全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
本发明实施例提供了一种设备工作状态检测方法，包括：采集设备在当前状态下的S个工作电流值，并对所述S个工作电流值进行加权平均滤波，得到所述设备当前状态下的工作电流值，其中，所述S不小于2；根据得到的所述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定所述设备当前的工作状态；根据得到的所述设备当前状态下的工作电流值，更新所述设备当前状态对应的工作状态电流阈值区间。相应的，本发明实施例还提供了一种设备工作状态检测装置。以下分别进行详细说明。An embodiment of the present invention provides a method for detecting the working state of a device, including: collecting S working current values of the device in the current state, and performing weighted average filtering on the S working current values to obtain the current state of the device The working current value, wherein, the S is not less than 2; according to the obtained working current value of the current state of the device and the preset working state current threshold interval, determine the current working state of the device; according to the obtained The working current value in the current state of the device is updated, and the working state current threshold interval corresponding to the current state of the device is updated. Correspondingly, the embodiment of the present invention also provides a device working state detection device. Each will be described in detail below.
如图1-a所示，本发明实施例中的一种设备工作状态检测方法，包括：As shown in Figure 1-a, a device working state detection method in the embodiment of the present invention includes:
步骤101、采集设备在当前状态下的S个工作电流值，并对上述S个工作电流值进行加权平均滤波，得到上述设备当前状态下的工作电流值，其中，上述S不小于2；Step 101: Collect S working current values of the device in the current state, and perform weighted average filtering on the S working current values to obtain the working current value of the device in the current state, wherein the above S is not less than 2;
由于在数据采集过程中不可避免地会受到干扰，为提高设备工作状态判别的准确性，在需要检测设备的工作状态时，设备工作状态检测装置采集设备在当前状态下的S个工作电流值进行加权平均滤波处理，得到上述设备当前状态下的工作电流值。具体的，设备工作状态检测装置获取设备当前状态下的工作电流值的过程如图1-b所示：Due to the unavoidable interference during the data collection process, in order to improve the accuracy of equipment working status discrimination, when it is necessary to detect the working status of the equipment, the equipment working status detection device collects S working current values of the equipment in the current state. The weighted average filtering process obtains the working current value of the above-mentioned equipment in the current state. Specifically, the process of obtaining the working current value of the device in the current state by the device working state detection device is shown in Figure 1-b:
步骤A1、采集设备当前状态下的S个工作电流值；Step A1, collecting S working current values in the current state of the device;
其中，上述S不小于2，即设备工作状态检测装置采集设备当前状态下的两个或两个以上的工作电流值。Wherein, the above-mentioned S is not less than 2, that is, the equipment working state detection device collects two or more working current values in the current state of the equipment.
步骤A2、计算上述S个工作电流值的平均值。Step A2, calculating the average value of the above S operating current values.
步骤A3、根据各个工作电流值与上述S个工作电流值的平均值的差值，分别为上述S个工作电流值中的每个工作电流值分配权重系数；Step A3, according to the difference between each working current value and the average value of the above S working current values, respectively assigning a weight coefficient to each of the above S working current values;
其中，为工作电流值分配的权重系数与上述差值成负相关，且，分配给上述S个工作电流值的S个权重系数的和为1。Wherein, the weight coefficients assigned to the operating current values are negatively correlated with the above difference, and the sum of the S weight coefficients assigned to the above S operating current values is 1.
步骤A4、根据第一公式计算上述设备当前的工作电流值；Step A4, calculate the current operating current value of the above-mentioned equipment according to the first formula;
其中，上述第一公式为：其中，Icurrent为上述设备当前状态下的工作电流值，xb表示第b个工作电流值，Cb表示分配给xb的权重系数。Wherein, the above-mentioned first formula is: Wherein, Icurrent is the working current value of the above equipment in the current state, xb represents the bth working current value, and Cb represents the weight coefficient assigned to xb .
下面举例对图1-b所示的获取设备当前状态下的工作电流值进行描述，在需要检测设备的工作状态时，设备工作状态检测装置采集该设备当前状态下的S个工作电流值，假设所采集到的S个工作电流值为：The following example describes the acquisition of the working current value of the device in the current state shown in Figure 1-b. When the working state of the device needs to be detected, the device working state detection device collects S working current values in the current state of the device, assuming The collected S operating current values are:
IAC＝{x1,x2,…,xS}IAC ＝{x1 ,x2 ,…,xS }
那么可以根据所采集到的数据集IAC的平均值与各个工作电流值之间的差值对每个工作电流值进行权重分配，最终实现加权平均滤波的效果。假设数据集IAC的平均值为那么根据与每个工作电流值的差值对数据集IAC进行排序。假设从差值小到差值大的排序结果为：Then, weight distribution can be performed on each operating current value according to the difference between the average value of the collected data set IAC and each operating current value, and finally achieve the effect of weighted average filtering. Assume that the mean of the data set IAC is then according to The difference from each operating current value sorts the data set IAC . Suppose the sorting result from small difference to large difference is:
IBC＝{xb1,xb2,…,xbS}IBC ＝{xb1 ,xb2 ,…,xbS }
那么按照差值小的数值权重系数大的原则依次为每一个工作电流值分配一个权重系数，即，对xb1分配权重系数C1，对xb2分配权重系数C2，对xbS分配权重系数CS，以此类推，并且权重系数满足：Then assign a weight coefficient to each operating current value in turn according to the principle that the value with the smaller difference has a larger weight coefficient, that is, assign a weight coefficient C1 to xb1 , assign a weight coefficient C2 to xb2 , and assign a weight coefficient to xbS CS , and so on, and the weight coefficient satisfies:
之后根据上述第一公式即可计算获得上述设备当前状态下的工作电流值。Then, the operating current value of the above-mentioned device in the current state can be calculated and obtained according to the above-mentioned first formula.
当然，本发明实施例中，设备工作状态检测装置也可以在需要检测设备的工作状态时，获取上述设备当前状态的多个工作电流值并求多个工作电流值的平均值，将多个工作电流值的平均值作为上述设备当前状态下的工作电流值，此处不作限定。Of course, in the embodiment of the present invention, the equipment working state detection device can also obtain multiple working current values of the current state of the above-mentioned equipment and calculate the average value of multiple working current values when it needs to detect the working state of the equipment, and combine multiple working current values The average value of the current value is used as the working current value of the above equipment in the current state, which is not limited here.
步骤102、根据得到的上述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定上述设备当前的工作状态；Step 102: Determine the current working state of the above-mentioned device according to the obtained working current value in the current state of the above-mentioned device and the preset working state current threshold interval;
本发明实施例中，预先设置上述设备的各种工作状态(例如关机状态、待机状态和运行状态)对应的工作状态电流阈值区间，设备工作状态检测装置在步骤101得到上述设备当前状态下的工作电流值后，根据得到的上述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定上述设备当前的工作状态。In the embodiment of the present invention, the working state current threshold intervals corresponding to the various working states (such as shutdown state, standby state, and running state) of the above-mentioned equipment are preset, and the device working state detection device obtains the working state of the above-mentioned equipment in step 101. After determining the current value, the current working state of the above-mentioned device is determined according to the obtained working current value of the above-mentioned device in the current state and the preset working state current threshold interval.
举例说明，假设设备的关机状态对应的工作状态电流阈值区间为[I1，I2]，设备的待机状态对应的工作状态电流阈值区间为(I3，I4]，设备的运行状态对应的工作状态电流阈值区间为(I5，I6]，若设备当前状态下的工作电流值所在的工作状态电流阈值区间为[I1，I2]，则确定该设备当前的工作状态为关机状态，若设备当前状态下的工作电流值所在的工作状态电流阈值区间为(I3，I4]，则确定该设备当前的工作状态为待机状态，若设备当前状态下的工作电流值所在的工作状态电流阈值区间为(I5，I6]，则确定该设备当前的工作状态为运行状态。由于通常情况下，设备在运行状态的工作电流值大于设备在待机状态的工作电流值，而设备在待机状态的工作电流值大于设备在关机状态的工作电流值，因此，I2≤I3且I4≤I5。For example, assume that the current threshold interval of the working state corresponding to the shutdown state of the device is [I1 , I2 ], the current threshold interval of the working state corresponding to the standby state of the device is (I3 , I4 ], and the operating state of the device corresponds to The working state current threshold interval is (I5 , I6 ], if the working state current threshold interval of the working current value of the device in the current state is [I1 , I2 ], then it is determined that the current working state of the device is the shutdown state , if the working state current threshold interval of the working current value of the device in the current state is (I3 , I4 ], it is determined that the current working state of the device is the standby state, if the working current value of the device in the current state is in the working state If the state current threshold interval is (I5 , I6 ], then it is determined that the current working state of the device is the running state. Because usually, the working current value of the device in the running state is greater than the working current value of the device in the standby state, and the device The operating current value in the standby state is greater than the operating current value of the device in the off state, therefore, I2 ≤ I3 and I4 ≤ I5 .
需要说明的是，本发明实施例中的设备的工作状态还可能为故障状态，由于在某些情况下，当设备处于故障状态时，设备的工作电流将大于设备在运行状态下的工作电流，因此，本发明实施例中可以将设备在故障状态下的阈值范围确定为(I6，+∞)。当设备当前状态下的工作电流值所在的工作状态电流阈值区间为(I6，+∞)，则确定该设备当前的工作状态为故障状态。It should be noted that the working state of the device in the embodiment of the present invention may also be a fault state, because in some cases, when the device is in the fault state, the working current of the device will be greater than the working current of the device in the running state, Therefore, in the embodiment of the present invention, the threshold range of the device in the fault state may be determined as (I6 , +∞). When the working state current threshold range of the working current value of the device in the current state is (I6 , +∞), it is determined that the current working state of the device is a fault state.
步骤103、根据得到的上述设备当前状态下的工作电流值，更新上述设备当前状态对应的工作状态电流阈值区间；Step 103, according to the obtained working current value of the above-mentioned equipment in the current state, update the working state current threshold interval corresponding to the current state of the above-mentioned equipment;
本发明实施例中，设备工作状态检测装置在步骤101得到上述设备当前状态下的工作电流值后，根据得到的上述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，更新上述设备当前状态对应的工作状态电流阈值区间。In the embodiment of the present invention, after obtaining the operating current value of the above-mentioned equipment in the current state in step 101, the apparatus for detecting the working state of the equipment updates the above-mentioned The working state current threshold interval corresponding to the current state of the device.
可选的，设备工作状态检测装置步骤101得到上述设备当前状态下的工作电流值，将上述设备当前状态对应的工作状态电流阈值区间更新为：Optionally, step 101 of the device working state detection device obtains the working current value of the above-mentioned equipment in the current state, and updates the working state current threshold interval corresponding to the current state of the above-mentioned equipment to:
(Ia，Ib*Co+Ic*Cc+△Ib]；(Ia , Ib *Co +Ic *Cc +△Ib ];
其中，上述Ia表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的下限值；上述Ib表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的中心值；上述Ic表示上述设备当前状态下的工作电流值；△Ib表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的偏差值；Co和Cc满足如下条件：Among them, the above-mentioned Ia represents the lower limit value of the working state current threshold interval corresponding to the current state of the above-mentioned equipment before this update; the above-mentioned Ib represents the lower limit value of the working state current threshold interval corresponding to the current state of the above-mentioned equipment before this update. Center value; the above-mentioned Ic represents the working current value of the above-mentioned equipment in the current state; △Ib represents the deviation value of the working state current threshold interval corresponding to the current state of the above-mentioned equipment before this update; Co and Cc meet the following conditions :
0≤Co≤1，0≤Cc≤1,Co+Cc＝1。0≤Co ≤1, 0≤Cc ≤1, Co +Cc =1.
可选的，设备工作状态检测装置还根据得到的上述设备当前状态下的工作电流值，按照上述对设备当前状态对应的工作状态电流阈值区间进行更新的方案，对上述设备其它状态对应的工作状态电流阈值区间进行更新。Optionally, the apparatus for detecting the working state of the equipment is also based on the obtained working current value of the above-mentioned equipment in the current state, and according to the above-mentioned scheme of updating the working state current threshold interval corresponding to the current state of the equipment, for the working state corresponding to the other states of the above-mentioned equipment. The current threshold range is updated.
由上可见，一方面，本发明通过采集设备在当前状态下的多个工作电流值进行加权平均滤波，对该设备在当前状态下的工作电流值进行确定，使得得到的该设备在当前状态下的工作电流值更为可靠；另一方面，在确定设备当前的工作状态后，根据得到设备在当前状态下的工作电流值，更新该设备当前状态对应的工作状态电流阈值区间，从而避免因电源波动或设备本身老化等原因引起设备工作状态电流变化而导致对设备的工作状态误判的弊端，进一步提高了设备工作状态判别的准确性。It can be seen from the above that, on the one hand, the present invention performs weighted average filtering by collecting multiple working current values of the device in the current state, and determines the working current value of the device in the current state, so that the obtained current value of the device in the current state The working current value of the device is more reliable; on the other hand, after determining the current working state of the device, according to the working current value of the device in the current state, update the working state current threshold interval corresponding to the current state of the device, so as to avoid the Fluctuation or aging of the equipment itself causes the current change of the working state of the equipment to cause misjudgment of the working state of the equipment, which further improves the accuracy of the identification of the working state of the equipment.
本发明实施例中的设备工作状态检测方法还包括工作状态电流阈值区间初始值设定步骤，如图2-a所示，本发明实施例中的工作状态电流阈值区间初始值设定步骤包括：The device working state detection method in the embodiment of the present invention also includes a step of setting the initial value of the current threshold interval in the working state. As shown in Figure 2-a, the setting step of the initial value of the current threshold interval in the working state in the embodiment of the present invention includes:
201、分别确定上述设备在各种工作状态下的工作状态电流阈值区间的中心值；201. Respectively determine the central value of the working state current threshold interval of the above-mentioned equipment in various working states;
在一种应用场景中，使设备分别运行于各种工作状态，并分别采集设备在同一工作状态下的多个工作电流值，将采集得到的多个工作电流值的平均值作为设备在相应工作状态下的工作状态电流阈值区间的中心值。In one application scenario, the equipment is operated in various working states, and multiple working current values of the equipment in the same working state are respectively collected, and the average value of the collected multiple working current values is used as the corresponding working current value of the equipment. The central value of the working state current threshold interval in the state.
以设备的运行状态为例进行说明，设备工作状态检测装置在设备处于运行状态下，采集设备在运行状态下的多个工作电流值，并将采集得到的多个工作电流值的平均值确定为设备在运行状态下的工作状态电流阈值区间的中心值，同理，对于设备的其它运行状态，例如待机状态和关机状态，设备工作状态检测装置将采集得到的设备在待机状态下的多个工作电流值的平均值确定为设备在待机状态下的工作状态电流阈值区间的中心值，设备工作状态检测装置将采集得到的设备在关机状态下的多个工作电流值的平均值确定为设备在关机状态下的工作状态电流阈值区间的中心值。Taking the running state of the equipment as an example for illustration, the device working state detection device collects multiple operating current values of the equipment in the running state when the equipment is in the running state, and determines the average value of the collected multiple working current values as The central value of the working state current threshold interval of the equipment in the running state. Similarly, for other running states of the equipment, such as the standby state and the shutdown state, the equipment working state detection device will collect the multiple working states of the equipment in the standby state. The average value of the current value is determined as the central value of the working state current threshold interval of the device in the standby state, and the device working state detection device determines the average value of the collected multiple working current values of the device in the shutdown state as the device in the shutdown state. The central value of the working state current threshold interval in the state.
为进一步提高工作状态电流阈值区间的中心值的准确性，可选的，本发明实施例中的设备工作状态检测装置针对设备的不同工作状态，采集设备在某种工作状态下的多组工作电流值，然后选取样本标准偏差最小的一组计算设备在该工作状态的工作状态电流阈值区间的中心值。具体的，设备在一种工作状态下的工作状态电流阈值区间的中心值的计算过程如图2-b所示：In order to further improve the accuracy of the central value of the working state current threshold interval, optionally, the device working state detection device in the embodiment of the present invention collects multiple groups of working currents of the device in a certain working state for different working states of the device value, and then select the center value of the working state current threshold interval of a group of computing equipment with the smallest sample standard deviation in this working state. Specifically, the calculation process of the central value of the working state current threshold interval of the device in one working state is shown in Figure 2-b:
B1、采集设备在同一工作状态下的M组工作电流，其中，每组工作电流包含N个工作电流值，且M和N均不小于2。B1. Collect M groups of operating currents of the equipment in the same working state, where each group of operating currents contains N operating current values, and both M and N are not less than 2.
B2、计算每组工作电流值的样本标准偏差值；B2. Calculate the sample standard deviation value of each group of working current values;
设备工作状态检测装置根据样本标准偏差值计算公式分别计算上述M组工作电流的样本标准偏差值。其中，样本标准偏差值计算公式如下：The equipment working state detection device calculates the sample standard deviation values of the above-mentioned M groups of working currents respectively according to the sample standard deviation value calculation formula. Among them, the formula for calculating the sample standard deviation value is as follows:
其中，si表示第i组工作电流的样本标准偏差值，xa表示第i组工作电流中的第a个工作电流值，表示第i组工作电流中的N个工作电流值的平均值。 Among them, si represents the sample standard deviation value of the i-th group of operating currents, xa represents the a-th operating current value in the i-th group of operating currents, Indicates the average value of the N working current values in the i-th group of working currents.
B3、将样本标准偏差值最小的一组工作电流中的N个工作电流值的平均值作为上述设备的该工作状态对应的工作状态电流阈值区间的中心值。B3. Taking the average value of N working current values in a group of working currents with the smallest sample standard deviation value as the central value of the working state current threshold interval corresponding to the working state of the above-mentioned equipment.
下面举例对图2-b所示的工作状态电流阈值区间的中心值的计算过程进行描述，以设备在运行状态为例，假设M取5，设备在运行工作状态下所采集到的5组电流数据分别为：The following example describes the calculation process of the central value of the current threshold interval in the working state shown in Figure 2-b. Taking the equipment in the running state as an example, assuming that M is 5, the five sets of current collected by the equipment in the running state The data are:
根据上述样本标准偏差值计算公式分别计算其样本标准偏差值。假设计算结果分别为S1，S2，S3，S4，S5。在计算结果中判别出最小值，假设最小值为S1，那么把IA1＝{x11,x12,…,x1N}的平均值作为设备在运行状态对应的工作状态电流阈值区间的中心值。Calculate the sample standard deviation value according to the above sample standard deviation value calculation formula. Assume that the calculation results are S1 , S2 , S3 , S4 , and S5 . Identify the minimum value in the calculation results, assuming the minimum value is S1 , then take the average value of IA1 ={x11 ,x12 ,…,x1N } as the center of the working state current threshold interval corresponding to the equipment in the running state value.
202、根据上述设备在各种工作状态下的工作状态电流阈值区间的中心值，分别确定上述设备在各种工作状态下的工作状态电流阈值区间；202. According to the central value of the working state current threshold interval of the above equipment in various working states, respectively determine the working state current threshold interval of the above equipment in various working states;
举例说明，假设设备在关机状态对应的工作状态电流阈值区间的中心值为Iclose，设备在待机状态对应的工作状态电流阈值区间的中心值为Istandby，设备在运行状态对应的工作状态电流阈值区间的中心值为Inormal，那么，设备工作状态检测装置根据Iclose、Istandby和Inormal分别确定设备工作状态检测装置在关机状态、待机状态和运行状态对应的工作状态电流阈值区间，其中，设备在关机状态对应的工作状态电流阈值区间包含Iclose，设备在待机状态对应的工作状态电流阈值区间包含Istandby，设备在待机状态对应的工作状态电流阈值区间包含Inormal。For example, assume that the center value of the working state current threshold interval corresponding to the device in the shutdown state is Iclose , the center value of the working state current threshold interval corresponding to the device in the standby state is Istandby , and the working state current threshold value corresponding to the device in the running state is The center value of the interval is Inormal , then, the equipment working state detection device determines the working state current threshold interval corresponding to the equipment working state detection device in the shutdown state, the standby state and the running state according to Iclose , Istandby and Inormal , wherein, The working state current threshold interval corresponding to the device in the shutdown state includes Iclose , the working state current threshold interval corresponding to the device in the standby state includes Istandby , and the working state current threshold interval corresponding to the device in the standby state includes Inormal .
由于通常情况下，Iclose、Istandby和Inormal应满足：Iclose<Istandby<Inormal，因此，可选的，设备工作状态检测装置根据Iclose、Istandby和Inormal，对设备工作状态检测装置在关机状态、待机状态和运行状态下的工作状态电流阈值区间进行如下划分：确定设备的关机状态对应的工作状态电流阈值区间为：[0，Iclose+△Iclose]；确定设备的待机状态对应的工作状态电流阈值区间为：(Iclose+△Iclose，Istandby+△Istandby]；确定设备的运行状态对应的工作状态电流阈值区间为：(Istandby+△Istandby，Inormal+△Inormal]；其中，△Istandby＝Istandby/2，△Inormal＝Inormal/2，△Iclose为预设值，且△Iclose<Istandby+△Istandby-Iclose。Normally, Iclose , Istandby and Inormal should satisfy: Iclose < Istandby < Inormal , therefore, optionally, the equipment working state detection device checks the equipment working state according to Iclose , Istandby and Inormal The working state current threshold interval of the detection device in the shutdown state, standby state and running state is divided as follows: determine the working state current threshold interval corresponding to the shutdown state of the equipment: [0, Iclose + △ Iclose ]; determine the equipment's The working state current threshold range corresponding to the standby state is: (Iclose + △ Iclose , Istandby + △ Istandby ]; the working state current threshold range corresponding to the running state of the equipment is: (Istandby + △ Istandby , Inormal +△Inormal ]; where, △Istandby =Istandby /2, △Inormal =Inormal /2, △Iclose is a preset value, and △Iclose <Istandby + △Istandby -Iclose .
当然，本发明实施例中，设备工作状态检测装置也可以根据Iclose、Istandby和Inormal，对设备工作状态检测装置在关机状态、待机状态和运行状态下的工作状态电流阈值区间进行其它划分，只需要满足：设备的关机状态对应的工作状态电流阈值区间包含Iclose，设备的待机状态对应的工作状态电流阈值区间包含Istandby，设备的运行状态对应的工作状态电流阈值区间的阈值范围包含Inormal，且设备的不同工作状态对应的工作状态电流阈值区间不重叠即可。Of course, in the embodiment of the present invention, the device working state detection device can also divide the working state current threshold intervals of the device working state detection device in the shutdown state, standby state and running state according to Iclose , Istandby and Inormal . , it only needs to be satisfied: the working state current threshold range corresponding to the shutdown state of the device includes Iclose , the working state current threshold range corresponding to the device standby state includes Istandby , and the working state current threshold range corresponding to the running state of the device includes Inormal , and the working state current threshold intervals corresponding to different working states of the device do not overlap.
需要说明的是，本发明实施例仅需要在对设备的各种工作状态下的工作状态电流阈值区间进行初始化设置时运行一次，在后续的检测设备的工作状态流程中无需再运行，当然，在设备的各种工作状态下的工作状态电流阈值区间完成初始化设置之后，用户也可以根据实际情况重新运行图2所示实施例中的流程，重新对设备的各种工作状态下的工作状态电流阈值区间进行初始化设置，此处不作限定。It should be noted that the embodiment of the present invention only needs to be run once when initializing and setting the working state current threshold intervals in various working states of the device, and there is no need to run it again in the subsequent working state process of the detection device. Of course, in After the initial setting of the working state current threshold intervals in various working states of the device is completed, the user can also re-run the process in the embodiment shown in Figure 2 according to the actual situation, and re-set the working state current thresholds in various working states of the device. The interval is initialized and set, which is not limited here.
由上可见，一方面，本发明通过采集设备在当前状态下的多个工作电流值进行加权平均滤波，对该设备在当前状态下的工作电流值进行确定，使得得到的该设备在当前状态下的工作电流值更为可靠；另一方面，在确定设备当前的工作状态后，根据得到设备在当前状态下的工作电流值，更新该设备当前状态对应的工作状态电流阈值区间，从而避免因电源波动或设备本身老化等原因引起设备工作状态电流变化而导致对设备的工作状态误判的弊端，进一步提高了设备工作状态判别的准确性。It can be seen from the above that, on the one hand, the present invention performs weighted average filtering by collecting multiple working current values of the device in the current state, and determines the working current value of the device in the current state, so that the obtained current value of the device in the current state The working current value of the device is more reliable; on the other hand, after determining the current working state of the device, according to the working current value of the device in the current state, update the working state current threshold interval corresponding to the current state of the device, so as to avoid the Fluctuation or aging of the equipment itself causes the current change of the working state of the equipment to cause misjudgment of the working state of the equipment, which further improves the accuracy of the identification of the working state of the equipment.
本发明实施例还提供一种设备工作状态检测装置，如图3所示，本发明实施例中的设备工作状态检测装置300，包括：The embodiment of the present invention also provides a device working state detection device. As shown in FIG. 3 , the device working state detection device 300 in the embodiment of the present invention includes:
第一采集单元301，用于采集设备在当前状态下的S个工作电流值，其中，上述S不小于2；The first collection unit 301 is used to collect S working current values of the device in the current state, wherein the above S is not less than 2;
加权滤波单元302，用于对第一采集单元301采集的上述S个工作电流值进行加权平均滤波，得到上述设备当前状态下的工作电流值；A weighted filtering unit 302, configured to perform weighted average filtering on the above-mentioned S operating current values collected by the first collecting unit 301, to obtain the working current value of the above-mentioned equipment in the current state;
第一确定单元303，用于根据加权滤波单元302得到的上述设备当前状态下的工作电流值和预设的工作状态电流阈值区间，确定上述设备当前的工作状态；The first determination unit 303 is configured to determine the current working state of the above-mentioned equipment according to the working current value of the above-mentioned equipment in the current state obtained by the weighted filtering unit 302 and the preset working state current threshold interval;
更新单元304，用于根据加权滤波单元302得到的上述设备当前状态下的工作电流值，更新上述设备当前状态对应的工作状态电流阈值区间。The updating unit 304 is configured to update the working state current threshold interval corresponding to the current state of the device according to the working current value of the device in the current state obtained by the weighted filtering unit 302 .
可选的，上述工作状态包括关机状态、待机状态和运行状态；在图3所示实施例的基础上，本发明实施例中的设备工作状态检测装置还包括：Optionally, the above-mentioned working state includes a shutdown state, a standby state and a running state; on the basis of the embodiment shown in Figure 3, the equipment working state detection device in the embodiment of the present invention further includes:
初始化单元，用于初始化上述设备在各种工作状态下的工作电流阈值区间；The initialization unit is used to initialize the working current threshold range of the above-mentioned equipment in various working states;
第二确定单元，用于：A second determination unit for:
确定关机状态对应的工作状态电流阈值区间为：[0，Iclose+△Iclose]；Determine the working state current threshold range corresponding to the shutdown state: [0, Iclose + △ Iclose ];
确定待机状态对应的工作状态电流阈值区间为：(Iclose+△Iclose，Istandby+△Istandby]；Determine the working state current threshold range corresponding to the standby state: (Iclose + △ Iclose , Istandby + △ Istandby ];
确定运行状态对应的工作状态电流阈值区间为：Determine the working state current threshold interval corresponding to the running state as:
(Istandby+△Istandby，Inormal+△Inormal]；(Istandby +△Istandby , Inormal +△Inormal ];
其中，上述Iclose为上述设备的关机状态对应的工作状态电流阈值区间的中心值，上述Istandby为上述设备的待机状态对应的工作状态电流阈值区间的中心值，上述Inormal为上述设备的运行状态对应的工作状态电流阈值区间的中心值，△Istandby＝Istandby/2，△Inormal＝Inormal/2，△Iclose为预设值，且△Iclose<Istandby+△Istandby-Iclose；Wherein, the above-mentioned Iclose is the central value of the operating state current threshold interval corresponding to the shutdown state of the above-mentioned equipment, the above-mentioned Istandby is the central value of the operating state current threshold interval corresponding to the standby state of the above-mentioned equipment, and the above-mentioned Inormal is the operation of the above-mentioned equipment The center value of the working state current threshold interval corresponding to the state, △Istandby ＝Istandby /2, △Inormal ＝Inormal /2, △Iclose is the default value, and △Iclose <Istandby + △Istandby - Iclose ;
上述初始化单元具体包括：The above initialization unit specifically includes:
第二采集单元，用于采集上述设备在同一工作状态下的M组工作电流，其中，每组工作电流包含N个工作电流值，且M和N均不小于2；The second collection unit is used to collect M groups of working currents of the above-mentioned equipment in the same working state, wherein each group of working currents includes N working current values, and both M and N are not less than 2;
第一计算单元，用于计算每组工作电流值的样本标准偏差值；The first calculation unit is used to calculate the sample standard deviation value of each group of working current values;
子确定单元，用于将样本标准偏差值最小的一组工作电流中的N个工作电流值的平均值作为上述设备的该工作状态对应的工作状态电流阈值区间的中心值。The sub-determining unit is configured to use the average value of N working current values in a group of working currents with the smallest sample standard deviation value as the central value of the working state current threshold interval corresponding to the working state of the above-mentioned equipment.
可选的，更新单元304具体用于：Optionally, the updating unit 304 is specifically used for:
将所述设备当前状态对应的工作状态电流阈值区间更新为：Update the working state current threshold interval corresponding to the current state of the device as:
(Ia，Ib*Co+Ic*Cc+△Ib]；(Ia , Ib *Co +Ic *Cc +△Ib ];
其中，上述Ia表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的下限值；上述Ib表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的中心值；上述Ic表示上所述设备当前状态下的工作电流值；△Ib表示在本次更新之前，上述设备当前状态对应的工作状态电流阈值区间的偏差值；Co和Cc满足如下条件：Among them, the above-mentioned Ia represents the lower limit value of the working state current threshold interval corresponding to the current state of the above-mentioned equipment before this update; the above-mentioned Ib represents the lower limit value of the working state current threshold interval corresponding to the current state of the above-mentioned equipment before this update. The center value; the above-mentioned Ic represents the working current value of the above-mentioned device in the current state; △Ib represents the deviation value of the working state current threshold interval corresponding to the current state of the above-mentioned device before this update; Co and Cc satisfy The following conditions:
0≤Co≤1，0≤Cc≤1,Co+Cc＝1。0≤Co ≤1, 0≤Cc ≤1, Co +Cc =1.
可选的，加权滤波单元302包括：Optionally, the weighted filtering unit 302 includes:
第二计算单元，用于计算上述S个工作电流值的平均值；The second calculation unit is used to calculate the average value of the above S operating current values;
分配单元，用于根据各个工作电流值与上述S个工作电流值的平均值的差值，分别为上述S个工作电流值中的每个工作电流值分配权重系数，其中，为工作电流值分配的权重系数与上述差值成负相关，且，分配给上述S个工作电流值的S个权重系数的和为1；The allocation unit is used to assign a weight coefficient to each of the above S operating current values according to the difference between each operating current value and the average value of the above S operating current values, wherein the assignment of the operating current value The weight coefficient of is negatively correlated with the above difference, and the sum of the S weight coefficients assigned to the above S operating current values is 1;
第三计算单元，用于根据第一公式计算上述设备当前状态下的工作电流值，其中，上述第一公式为：其中，Icurrent为所述设备当前状态下的工作电流值，xb表示第b个工作电流值，Cb表示分配给xb的权重系数。The third calculation unit is used to calculate the working current value of the above-mentioned device in the current state according to the first formula, wherein the above-mentioned first formula is: Wherein, Icurrent is the working current value of the device in the current state, xb represents the bth working current value, and Cb represents the weight coefficient assigned to xb .
在本申请所提供的几个实施例中，应该理解到，所揭露的装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the above units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
需要说明的是，对于前述的各方法实施例，为了简便描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本发明并不受所描述的动作顺序的限制，因为依据本发明，某些步骤可以采用其它顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模块并不一定都是本发明所必须的。It should be noted that, for the sake of simplicity of description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其它实施例的相关描述。In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.
以上为对本发明所提供的一种设备工作状态检测方法和设备工作状态检测装置的描述，对于本领域的一般技术人员，依据本发明实施例的思想，在具体实施方式及应用范围上均会有改变之处，综上，本说明书内容不应理解为对本发明的限制。The above is a description of a device working state detection method and a device working state detection device provided by the present invention. For those of ordinary skill in the art, based on the ideas of the embodiments of the present invention, there will be specific implementation methods and application ranges. Changes, in summary, the contents of this specification should not be construed as limiting the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347809.1ACN104090189B (en) | 2014-07-21 | 2014-07-21 | A kind of equipment working state detection method and equipment working state detection means |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410347809.1ACN104090189B (en) | 2014-07-21 | 2014-07-21 | A kind of equipment working state detection method and equipment working state detection means |
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| CN104090189A CN104090189A (en) | 2014-10-08 |
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| CN201410347809.1AExpired - Fee RelatedCN104090189B (en) | 2014-07-21 | 2014-07-21 | A kind of equipment working state detection method and equipment working state detection means |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104993974B (en)* | 2015-06-30 | 2019-03-08 | 华为技术有限公司 | A detection method for identifying the working state of equipment and a host computer |
| CN105825052A (en)* | 2016-03-15 | 2016-08-03 | 中国人民解放军总后勤部卫生部药品仪器检验所 | Method and device for monitoring large-size medical equipment |
| CN107544426B (en)* | 2016-06-27 | 2021-09-07 | 苏州宝时得电动工具有限公司 | Control method and device of electric tool and electric tool |
| CN106353576B (en)* | 2016-08-15 | 2020-02-07 | 宁波舜宇智能科技有限公司 | Utilization rate determination system and method |
| CN109001527B (en)* | 2018-10-17 | 2021-06-01 | 北京弘浩千瑞科技有限公司 | Equipment working state detection method |
| CN110892188B (en)* | 2018-11-30 | 2022-05-17 | 深圳市大疆创新科技有限公司 | Control method of handheld cloud deck and handheld cloud deck |
| CN110441584B (en)* | 2019-08-26 | 2020-11-17 | 珠海格力电器股份有限公司 | Equipment running state monitoring method, device, storage medium and system |
| CN111693805A (en)* | 2020-05-28 | 2020-09-22 | 珠海格力电器股份有限公司 | Detection circuit and detection method for detecting operating state of sterilization device |
| CN113864175B (en)* | 2020-06-30 | 2023-06-09 | 杭州九阳小家电有限公司 | Water pump state detection method in food processor |
| CN111830933B (en)* | 2020-07-16 | 2022-03-29 | 广东亨通光电科技有限公司 | A heating element detection system, method, device and storage medium |
| CN113640700A (en)* | 2021-07-29 | 2021-11-12 | 北京建院图茂科技有限公司 | High-power LED lighting fault monitoring system and method based on current data |
| CN117805542B (en)* | 2024-03-01 | 2024-05-14 | 张家港市升恒机械设备制造有限公司 | Mining flameproof intrinsically safe frequency converter operation monitoring system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004023474A (en)* | 2002-06-17 | 2004-01-22 | Kobe Steel Ltd | Apparatus and method for detecting state of device, and apparatus and method for informing of state of device |
| CN102544618A (en)* | 2010-12-30 | 2012-07-04 | 上海航天电源技术有限责任公司 | Liquid cooling temperature control and management method of power lithium ion battery |
| CN203025493U (en)* | 2012-09-07 | 2013-06-26 | 冯晓东 | Electrical switching system |
| CN103277877A (en)* | 2013-06-24 | 2013-09-04 | 重庆星能建筑节能技术发展有限公司 | Energy-saving control system and method for air conditioner |
| CN203324774U (en)* | 2013-05-30 | 2013-12-04 | 安科智慧城市技术（中国）有限公司 | Monitoring device based on monitoring equipment working states and monitoring system |
| CN103676679A (en)* | 2012-09-07 | 2014-03-26 | 冯晓东 | Electrical switch system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004023474A (en)* | 2002-06-17 | 2004-01-22 | Kobe Steel Ltd | Apparatus and method for detecting state of device, and apparatus and method for informing of state of device |
| CN102544618A (en)* | 2010-12-30 | 2012-07-04 | 上海航天电源技术有限责任公司 | Liquid cooling temperature control and management method of power lithium ion battery |
| CN203025493U (en)* | 2012-09-07 | 2013-06-26 | 冯晓东 | Electrical switching system |
| CN103676679A (en)* | 2012-09-07 | 2014-03-26 | 冯晓东 | Electrical switch system |
| CN203324774U (en)* | 2013-05-30 | 2013-12-04 | 安科智慧城市技术（中国）有限公司 | Monitoring device based on monitoring equipment working states and monitoring system |
| CN103277877A (en)* | 2013-06-24 | 2013-09-04 | 重庆星能建筑节能技术发展有限公司 | Energy-saving control system and method for air conditioner |
| Publication number | Publication date |
|---|---|
| CN104090189A (en) | 2014-10-08 |
| Publication | Publication Date | Title |
|---|---|---|
| CN104090189B (en) | A kind of equipment working state detection method and equipment working state detection means | |
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