fix:修改粒度解析
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@ -88,6 +88,9 @@ func (dao *SensorDAO) GetAggregatedData(start, end time.Time, interval string) (
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var result []model.AggregatedData
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// 对每个时间桶进行处理
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var lastKnownRainfall float64 = 0
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var firstBucketProcessed bool = false
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for i, bucketTime := range buckets {
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var nextBucketTime time.Time
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if i < len(buckets)-1 {
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@ -106,14 +109,21 @@ func (dao *SensorDAO) GetAggregatedData(start, end time.Time, interval string) (
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}
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if len(bucketData) == 0 {
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// 如果该时间桶内没有数据,尝试使用上一个时间桶的最后数据
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// 如果该时间桶内没有数据,表示没有新增雨量
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var newData model.AggregatedData
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newData.Timestamp = bucketTime
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// 使用上一个有效时间桶的其他数据(温度等)
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if i > 0 && len(result) > 0 {
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lastBucketData := result[len(result)-1]
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// 复制上一个时间桶的数据,但更新时间戳
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newData := lastBucketData
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newData.Timestamp = bucketTime
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result = append(result, newData)
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newData.AvgTemperature = lastBucketData.AvgTemperature
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newData.AvgHumidity = lastBucketData.AvgHumidity
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newData.AvgWindSpeed = lastBucketData.AvgWindSpeed
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newData.AvgAtmPressure = lastBucketData.AvgAtmPressure
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newData.AvgSolarRadiation = lastBucketData.AvgSolarRadiation
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}
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// 新增雨量为0
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newData.Rainfall = 0
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result = append(result, newData)
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continue
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}
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@ -137,20 +147,30 @@ func (dao *SensorDAO) GetAggregatedData(start, end time.Time, interval string) (
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aggregated.AvgAtmPressure = sumAtmPressure / count
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aggregated.AvgSolarRadiation = sumSolarRadiation / count
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// 对于雨量,使用时间桶内最后一个(最新的)数据点的值
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aggregated.Rainfall = bucketData[len(bucketData)-1].Rainfall
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// 获取该时间桶内最后一个(最新的)数据点的累积雨量值
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currentRainfall := bucketData[len(bucketData)-1].Rainfall
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// 计算新增雨量(相对于前一个时间桶)
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if i > 0 && len(result) > 0 {
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prevRainfall := result[len(result)-1].Rainfall
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// 如果当前雨量大于前一个时间桶的雨量,计算差值作为新增雨量
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if aggregated.Rainfall > prevRainfall {
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aggregated.Rainfall = aggregated.Rainfall - prevRainfall
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} else if aggregated.Rainfall == prevRainfall {
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// 如果雨量没有变化,表示没有新增雨量
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// 计算新增雨量
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if !firstBucketProcessed {
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// 第一个有数据的时间桶,记录累积雨量作为基准
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lastKnownRainfall = currentRainfall
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// 如果是第一个时间桶,新增雨量就是当前累积值
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aggregated.Rainfall = currentRainfall
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firstBucketProcessed = true
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} else {
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// 后续时间桶,计算相对于上一个已知累积雨量的差值
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if currentRainfall > lastKnownRainfall {
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// 如果当前累积雨量增加,计算新增部分
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aggregated.Rainfall = currentRainfall - lastKnownRainfall
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lastKnownRainfall = currentRainfall
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} else if currentRainfall < lastKnownRainfall {
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// 如果当前累积雨量减少(可能是雨量计重置),视为新一轮累积
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aggregated.Rainfall = currentRainfall
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lastKnownRainfall = currentRainfall
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} else {
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// 如果累积雨量没有变化,表示没有新增雨量
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aggregated.Rainfall = 0
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}
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// 如果当前雨量小于前一个时间桶的雨量(可能是雨量计重置),保留当前值作为新增雨量
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}
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result = append(result, aggregated)
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