HKWorkoutSession中的heartRate数据是否是移动平均线? [英] Is heartRate data from an HKWorkoutSession a moving average?

问题描述

我正在使用HKWorkoutSession在 workoutBuilder didCollectDataOf 中每5秒获取一次心率数据.心率报告为心跳/分钟".问题是，它们是作为移动平均值计算的，还是仅在前一个时间间隔内计算的?(我在任何地方的文档中都找不到此内容.)

I'm using an HKWorkoutSession to get heart rate data every 5 seconds in workoutBuilder didCollectDataOf. The heart rates are reported as "beats/minute". The question is, are they calculated as moving averages, or just over the previous time interval? (I couldn't find this specified in the documentation anywhere.)

例如，如果您获得以下心率:

For example, if you get the following heart rates:

t=0: 69 beats/min
t=5: 71 beats/min
t=10: 72 beats/min
...

每个值是过去60秒的平均拍子间隔，还是只是从数据的最后5秒推断出来?

Is each value an average of beat intervals over the past 60 seconds, or is it just extrapolated from the last 5 seconds of data?

这是 didCollectDataOf 的样子:

    func workoutBuilder(_ workoutBuilder: HKLiveWorkoutBuilder, didCollectDataOf collectedTypes: Set<HKSampleType>) {

        for type in collectedTypes {
            guard let hrType = HKQuantityType.quantityType(forIdentifier: .heartRate) else {
                return
            }

            if collectedTypes.contains(hrType) {
                if let hrQuantity = workoutBuilder.statistics(for: hrType)?.mostRecentQuantity() {
                    let hrUnit = HKUnit(from: "count/min")
                    let hr = Int(hrQuantity.doubleValue(for: hrUnit))

                    debugPrint("\(Date()) HR: \(hr)")
                }
            }
        }
    }

推荐答案

根据我的经验，这不是移动均线.

From my experience, it's not a moving average.

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