WO2018068508A1 - 一种血氧探头故障诊断方法及装置 - Google Patents

一种血氧探头故障诊断方法及装置 Download PDF

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WO2018068508A1
WO2018068508A1 PCT/CN2017/084216 CN2017084216W WO2018068508A1 WO 2018068508 A1 WO2018068508 A1 WO 2018068508A1 CN 2017084216 W CN2017084216 W CN 2017084216W WO 2018068508 A1 WO2018068508 A1 WO 2018068508A1
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detection signal
duration
detection
diagnosis
signal
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高平东
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
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Guangzhou Shiyuan Electronics Thecnology Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
    • A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
    • A61B5/14552—Details of sensors specially adapted therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1495—Calibrating or testing of in-vivo probes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7221—Determining signal validity, reliability or quality
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections

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  • the embodiment of the invention relates to a fault diagnosis technology, in particular to a blood oxygen probe fault diagnosis method and device.
  • the blood oxygen probe may cause some damage to the patient or the wrong result due to short circuit or open circuit of the signal line. For example, a light-emitting diode burns a patient due to a short-circuit continuous illuminating heat; a correct blood oxygen signal is not received, and an erroneous result is calculated and a false alarm is issued.
  • the current method is:
  • this method can achieve real-time diagnosis of faults, but the use of independent hardware circuits, high cost and increased size.
  • the received signal will have a relatively large change. Therefore, the threshold values of the red light signal, the infrared light signal, and the ambient noise signal in the received signal are used to determine whether there is a probe failure.
  • the method has low implementation cost and does not need to add additional circuits, but due to the uncertainty of threshold setting and multi-deformation of environmental interference, the accuracy is not accurate and often false positives.
  • Probe troubleshooting requires an intrinsic time to diagnose the results and the blood oxygen collected over a period of time after diagnosis The signal is invalid. During this diagnostic time, the blood oxygen signal could not be collected and the blood oxygen measurement was interrupted, and the measurement experience was poor. As shown in Fig. 1, in the case of signal acquisition during signal diagnosis, signal acquisition cannot be performed during the hardware diagnostic duration of one. Invalid time 2 (signal recovery time after diagnosis) The acquired signal deviates from the correct signal and is an invalid signal. Therefore, an effective blood oxygen signal cannot be collected during the interruption duration of 3, causing the blood oxygen measurement to be interrupted and the detection signal of the blood oxygenation detection to be lost.
  • Invalid time 2 signal recovery time after diagnosis
  • the embodiment of the invention provides a method and a device for diagnosing a blood oxygen probe, which can ensure the integrity of the blood oxygen detection detection signal while maintaining the original probe fault detection.
  • an embodiment of the present invention provides a method for diagnosing a blood oxygen probe, which is characterized by comprising:
  • the missing detection signal is complemented based on the detected detection signal.
  • the confirming the interruption duration of the blood oxygenation detection in the diagnosis period includes:
  • the interruption duration is confirmed based on the diagnosis duration and the invalid duration.
  • the recovering the lost detection signal according to the detected detection signal includes:
  • the detecting signal that is lost according to the first detection signal and the second detection signal is specifically:
  • diagnosis period is T seconds, and 3 ⁇ T ⁇ 10.
  • an embodiment of the present invention further provides a blood oxygen probe fault diagnosis apparatus, the apparatus comprising:
  • the fault diagnosis module is configured to perform fault detection according to a preset diagnosis period
  • An interrupt duration confirmation module for confirming an interruption duration of blood oxygenation detection during the diagnosis period
  • a signal number calculation module configured to calculate, according to the frequency of the blood oxygenation detection, a number of detection signals lost during the interruption duration
  • the signal completion module is configured to complement the missing detection signal according to the detected detection signal.
  • interrupt duration confirmation module is specifically configured to:
  • the interruption duration is confirmed based on the diagnosis duration and the invalid duration.
  • the signal completion module includes:
  • a first detection signal acquisition unit configured to acquire a last valid first detection signal before the interruption duration
  • a second detection signal acquisition unit configured to acquire a first valid second detection signal after the interruption duration
  • a detection signal complementing unit configured to complement the missing detection signal according to the first detection signal and the second detection signal.
  • detection signal complementing unit is specifically configured to:
  • diagnosis period is T seconds, and 3 ⁇ T ⁇ 10.
  • the invention performs fault detection according to a preset diagnosis period; confirms the interruption duration of the blood oxygenation detection in the diagnosis period; and calculates the number of detection signals lost in the interruption duration according to the frequency of the blood oxygenation detection; The detected detection signal complements the missing detection signal. It can ensure the detection signal of blood oxygenation test is complete while maintaining the original probe fault detection.
  • FIG. 1 is a schematic diagram of a detection signal of a prior art blood oxygen probe fault diagnosis
  • FIG. 2 is a flow chart of a method for diagnosing a blood oxygen probe fault according to Embodiment 1 of the present invention
  • FIG. 3 is a flow chart of a method for diagnosing a blood oxygen probe fault according to a second embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a detection method of a blood oxygen probe fault diagnosis method in the second embodiment of the present invention.
  • FIG. 5 is a structural diagram of a complement signal of a detection signal in a blood oxygen probe fault diagnosis method according to a second embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a blood oxygen probe fault diagnosis apparatus according to Embodiment 3 of the present invention.
  • FIG. 2 is a flowchart of a method for diagnosing a blood oxygen probe fault according to a first embodiment of the present invention.
  • the present embodiment can be applied to a fault diagnosis of a blood oxygen probe.
  • the method can provide a blood oxygen probe fault diagnosis apparatus according to an embodiment of the present invention.
  • the device can be implemented in software and/or hardware.
  • the device can be integrated into any blood oxygen probe that needs to be diagnosed, as shown in FIG. 2, and the method specifically includes the following steps:
  • S110 Perform fault detection according to a preset diagnosis period.
  • the diagnosis period is a diagnosis period for detecting a blood oxygen probe fault, that is, a new fault diagnosis is started after a diagnosis cycle, and in the fault diagnosis process, the blood oxygen probe cannot perform fault detection normally. That is, there is a period of time when a valid signal is not collected from the moment of a diagnosis cycle.
  • the interrupt duration is a time when the signal is not received during the blood oxygen detecting process and the received signal is an invalid signal, that is, the effective signal is not collected during the interrupt duration.
  • the frequency of the blood oxygen detection is the number of times of detecting the signal repeatedly in a unit time, that is, the time required for each signal acquisition can be calculated according to the frequency of the blood oxygen detection.
  • the number of the missing detection signals is the number of signals that cannot be acquired during the diagnosis and the number of invalid signals during the repair time after the diagnosis ends.
  • the detected detection signal is a valid signal obtained before the fault detection is performed and a detection signal obtained after the fault detection is performed, and the lost detection signal may be complemented based on the specified detected detection signals, or may be The detected signal is lost based on statistical analysis of the detected detection signal.
  • the curve formed by the result of the blood oxygenation test does not obtain the curve at the initial stage, but a plurality of detection values are obtained after detecting at a certain frequency, and the points corresponding to the detected values are mapped and formed into a smooth shape.
  • the curve so when the actual detection signal is lost, it is not a complete curve, but multiple independent detection signals are sequentially sequenced.
  • the technical solution of the embodiment is to perform fault detection according to a preset diagnosis period; confirm an interruption duration of blood oxygenation detection in the diagnosis period; and calculate a detection signal that is lost within the interruption duration according to the frequency of the blood oxygenation detection Number; the missing detection signal is complemented based on the detected detection signal. It can ensure the detection signal of blood oxygenation test is complete while maintaining the original probe fault detection.
  • the interruption duration of the blood oxygenation detection during the diagnosis period includes: obtaining a diagnosis duration of the blood oxygen probe and an invalid duration of the detection signal in the diagnosis period; and confirming the interruption duration according to the diagnosis duration and the invalid duration.
  • the method in this embodiment specifically includes the following steps:
  • S210 Perform fault detection according to a preset diagnosis period.
  • the diagnosis duration of the blood oxygen probe is the time for the blood oxygen probe to perform fault diagnosis
  • the invalid duration is the repair time after the blood oxygen probe performs fault diagnosis.
  • the signal acquired during the repair period is an invalid signal.
  • the interruption duration includes the diagnosis duration and the invalid duration.
  • the number of lost signals in the interruption duration is calculated according to the frequency of the blood oxygen detection, and the detected useful signal is processed to complement the lost detection signal to realize real-time diagnosis.
  • T1 hardware diagnostic duration 1
  • T2 invalid duration 2 (diagnostic signal recovery time)
  • T3 interrupt duration 3
  • T1+T2 when the diagnosis period T time is up, record the current valid signal S1, start the hardware to perform fault diagnosis, and after the hardware diagnosis time is 1, the signal is not obtained within the diagnosis time, the invalid data of the invalid time period 2 time period is discarded, and then the diagnosis is collected.
  • the missing signal in the interruption time 3 (diagnosis invalid signal time window) time is linearly interpolated from S1 to S2 to complement the lost signal. Wait for the next diagnostic cycle T and repeat the above steps.
  • the recovering the lost detection signal according to the detected detection signal includes: acquiring a last valid first detection signal before the interruption duration;
  • the detecting signal that is lost according to the first detection signal and the second detection signal is specifically:
  • the diagnosis period is T seconds, and 3 ⁇ T ⁇ 10.
  • the diagnostic period T can be selected from 3 to 10 seconds.
  • the number of detection signals lost during the interruption duration is calculated according to the detection frequency, and the lost detection signal is complemented. It can ensure the detection signal of blood oxygenation test is complete while maintaining the original probe fault detection.
  • FIG. 6 is a schematic structural diagram of a blood oxygen probe fault diagnosis apparatus according to a third embodiment of the present invention. This embodiment can be applied to the diagnosis of oximetry of the oximetry probe.
  • the device can be implemented by software and/or hardware.
  • the device can be integrated into any device that provides a diagnosing device for oximetry, as shown in FIG.
  • the blood oxygen probe fault diagnosis device specifically includes: a fault diagnosis module 31, an interrupt duration confirmation module 32, a signal number calculation module 33, and a signal completion module 34.
  • the fault diagnosis module is configured to perform fault detection according to a preset diagnosis period; an interrupt duration confirmation module is configured to confirm an interruption duration of blood oxygenation detection in the diagnosis period; and a signal number calculation module is configured to be used according to the blood
  • the frequency of the oxygen detection calculates the number of detection signals lost during the interruption duration; the signal completion module is configured to complement the missing detection signal according to the detected detection signal.
  • the interrupt duration confirmation module is configured to: obtain a diagnosis duration of the blood oxygen probe and an invalid duration of the detection signal in the diagnosis period;
  • the interruption duration is confirmed based on the diagnosis duration and the invalid duration.
  • the signal completion module includes: a first detection signal acquiring unit, configured to acquire a last valid first detection signal before the interruption duration;
  • a second detection signal acquisition unit configured to acquire a first valid second detection signal after the interruption duration
  • a detection signal complementing unit configured to complement the missing detection signal according to the first detection signal and the second detection signal.
  • the detection signal complementing unit is specifically configured to:
  • the diagnosis period is T seconds, and 3 ⁇ T ⁇ 10.
  • the technical solution of the embodiment is to perform fault detection according to a preset diagnosis period; confirm an interruption duration of blood oxygenation detection in the diagnosis period; and calculate a detection signal that is lost within the interruption duration according to the frequency of the blood oxygenation detection Number; the missing detection signal is complemented based on the detected detection signal. It can ensure the detection signal of blood oxygenation test is complete while maintaining the original probe fault detection.
  • the above product can perform the method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

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Abstract

一种血氧探头故障诊断方法及装置，该方法包括：根据预设的诊断周期进行故障检测（S110）；确认诊断周期内血氧检测的中断时长（S120）；根据血氧检测的频率计算中断时长内丢失的检测信号的个数（S130）；根据已检测的检测信号补全丢失的检测信号（S140）。这种血氧探头故障诊断方法及装置，能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。

Description

一种血氧探头故障诊断方法及装置 技术领域
本发明实施例涉及一种故障诊断技术，尤其涉及一种血氧探头故障诊断方法及装置。
背景技术
在血氧测量期间，血氧探头会因为信号线的短路、断路而造成一些故障带来伤害患者或测出错误的结果。如发光二极管因短路持续发光发热而烧伤患者；接收不到正确的血氧信号而计算出错误的结果而误报警等。
在血氧测量期间为了快速发现血氧探头故障，避免血氧测量错误或伤害患者而照成以外。
目前采用的方法为：
1，使用独立的血氧探头故障硬件电路，该方法可以实现实时诊断故障，但是使用了独立的硬件电路，成本高，体积增大。
2，根据在探头故障时，接收到的信号会有一个比较大的变化。因此使用接收信号中的红光信号，红外光信号，和环境噪声信号的阈值进行判断是否有探头故障。该方法，实现成本低，不需增加额外的电路，但是由于阈值的设置不确定性和环境干扰的多变形，精度不准，经常误报。
3，使用血氧信号采集与探头故障诊断分时复用的硬件(如TI的AFE4403血氧模拟前端芯片，血氧信号采集与探头故障诊断不能同时工作)。探头故障诊断需要一个固有的时间才能诊断出结果，并且诊断后的一段时间内采集到的血氧 信号是无效的。在这段诊断时间里无法采集血氧信号而导致血氧测量中断，测量体验很差。如图1所示，信号诊断时采集信号的情况，在硬件诊断时长1期间内无法进行信号采集。无效时长2(诊断后信号恢复时间)内采集信号偏离正确的信号，为无效信号。因此，中断时长3期间内不能采集到有效的血氧信号，导致血氧测量中断，丢失血氧检测的检测信号。
发明内容
本发明实施例提供一种血氧探头故障诊断方法及装置，能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。
第一方面，本发明实施例提供了一种血氧探头故障诊断方法，其特征在于，包括：
根据预设的诊断周期进行故障检测；
确认所述诊断周期内血氧检测的中断时长；
根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；
根据已检测的检测信号补全丢失的检测信号。
进一步的，所述确认所述诊断周期内血氧检测的中断时长，包括：
获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；
根据所述诊断时长和无效时长确认所述中断时长。
进一步的，所述根据已检测的检测信号补全丢失的检测信号，包括：
获取所述中断时长之前最后一个有效的第一检测信号；
获取所述中断时长之后第一个有效的第二检测信号；
根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
进一步的，所述根据所述第一检测信号和所述第二检测信号补全丢失的检测信号，具体为：
根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
进一步的，所述诊断周期为T秒，3≤T≤10。
第二方面，本发明实施例还提供了一种血氧探头故障诊断装置，该装置包括：
故障诊断模块，用于根据预设的诊断周期进行故障检测；
中断时长确认模块，用于确认所述诊断周期内血氧检测的中断时长；
信号个数计算模块，用于根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；
信号补全模块，用于根据已检测的检测信号补全丢失的检测信号。
进一步的，所述中断时长确认模块，具体用于：
获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；
根据所述诊断时长和无效时长确认所述中断时长。
进一步的，所述信号补全模块，包括：
第一检测信号获取单元，用于获取所述中断时长之前最后一个有效的第一检测信号；
第二检测信号获取单元，用于获取所述中断时长之后第一个有效的第二检测信号；
检测信号补全单元，用于根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
进一步的，所述检测信号补全单元，具体用于：
根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
进一步的，所述诊断周期为T秒，3≤T≤10。
本发明通过根据预设的诊断周期进行故障检测；确认所述诊断周期内血氧检测的中断时长；根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；根据已检测的检测信号补全丢失的检测信号。能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。
附图说明
图1是现有技术的血氧探头故障诊断时检测信号的示意图；
图2是本发明实施例一中的一种血氧探头故障诊断方法的流程图；
图3是本发明实施例二中的一种血氧探头故障诊断方法的流程图；
图4是本发明实施例二中的一种血氧探头故障诊断方法中检测信号补全后的示意图；
图5是本发明实施例二中的一种血氧探头故障诊断方法中检测信号的补全信号的结构图；
图6是本发明实施例三中的一种血氧探头故障诊断装置的结构示意图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是，此处所描述的具体实施例仅仅用于解释本发明，而非对本发明的限定。另外还需 要说明的是，为了便于描述，附图中仅示出了与本发明相关的部分而非全部结构。
实施例一
图2为本发明实施例一提供的一种血氧探头故障诊断方法的流程图，本实施例可适用于血氧探头故障诊断的情况，该方法可以由本发明实施例提供血氧探头故障诊断装置来执行，该装置可采用软件和/或硬件的方式实现，该装置可集成在任何需要故障诊断的血氧探头中，如图2所示，该方法具体包括如下步骤：
S110，根据预设的诊断周期进行故障检测。
具体的，所述诊断周期为检测血氧探头故障的诊断周期，也就是说，经过一个诊断周期就开始一次新的故障诊断，而在故障诊断过程中，血氧探头是无法正常进行故障检测的，即：经过一次诊断周期的那一时刻起有一段时间采集不到有效信号。
S120，确认所述诊断周期内血氧检测的中断时长。
具体的，所述中断时长为血氧检测过程中接收不到信号以及接收到的信号为无效信号的时间，也就是说中断时长采集不到有效信号。
S130，根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数。
其中，所述血氧检测的频率为单位时间内重复检测信号的次数，即：根据血氧检测的频率能够计算出每进行一次信号采集需要的时间。所述丢失的检测信号的个数为诊断期间不能采集的信号个数和诊断结束后修复时间内的无效信号个数。
S140，根据已检测的检测信号补全丢失的检测信号。
具体的，所述已检测的检测信号为在进行故障检测之前获得的有效信号和进行故障检测之后获得的检测信号，可以基于指定的若干已检测的检测信号补全丢失的检测信号，也可以是基于对已检测的检测信号的统计分析后补全丢失的检测信号。
需要说明的是，在实际检测过程中，血氧检测的结果形成的曲线并不是初始就得到曲线，而是按一定频率检测后得到多个检测值，将检测值对应的点映射并形成光滑的曲线，所以在实际补全丢失的检测信号时也不是补全曲线，而是顺序补全多个独立的检测信号。
本实施例的技术方案，通过根据预设的诊断周期进行故障检测；确认所述诊断周期内血氧检测的中断时长；根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；根据已检测的检测信号补全丢失的检测信号。能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。
实施例二
图3为本发明实施例二中的一种血氧探头故障诊断方法的流程示意图，本实施例以前述实施例一为基础进行优化，提供了优选的故障诊断方法，具体是，所述确认所述诊断周期内血氧检测的中断时长，包括：获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；根据所述诊断时长和无效时长确认所述中断时长。
相应的，本实施例的方法具体包括如下步骤：
S210，根据预设的诊断周期进行故障检测。
S220，获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时 长。
其中，所述血氧探头的诊断时长为血氧探头进行故障诊断的时间，所述无效时长为血氧探头进行故障诊断后的修复时间。在修复期间内获取的信号为无效信号。
S230，根据所述诊断时长和无效时长确认所述中断时长。
具体的，所述中断时长包括所述诊断时长和无效时长。
S240，根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数。
S250，根据已检测的检测信号补全丢失的检测信号。
具体的，通过获取中断时长，根据血氧检测的频率计算中断时长内丢失信号的个数，对已经检测的有用信号进行处理来补全丢失的检测信号进而实现实时诊断。
在一个具体的例子中，如图4所示，首先设定诊断周期为T，T1为硬件诊断时长1，T2为无效时长2(诊断后信号恢复时间)，T3为中断时长3，且T3＝T1+T2，当诊断周期T时间到，记录当前有效信号S1，启动硬件进行故障诊断，经过硬件诊断时长1，诊断时间内获取不到信号，丢掉无效时长2时间段的无效数据，之后采集诊断后的第一个有效信号S2，对中断时长3(诊断无效信号时间窗)时间内的丢失信号进行S1到S2线性插值，补全丢失的信号。等待一下个诊断周期T，重复步骤上述步骤。
可选的，所述根据已检测的检测信号补全丢失的检测信号，包括：获取所述中断时长之前最后一个有效的第一检测信号；
获取所述中断时长之后第一个有效的第二检测信号；
根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
可选的，所述根据所述第一检测信号和所述第二检测信号补全丢失的检测信号，具体为：
根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
可选的，所述诊断周期为T秒，3≤T≤10。
在一个具体的例子中，如果所述血氧探头为TI的AFE4403血氧模拟前端芯片，如图5所示，设定血氧探头的采集率为250Hz，每进行一次信号采集时间Ts＝1S/250Hz＝4ms。硬件诊断时间每启动一次，实测硬件诊断时长1为T1等于6ms，诊断后无效时长2为T2等于40ms。
为了尽可能的减少诊断对原始信号的影响，并达到实时诊断的目的，这里诊断周期T可选为3--10秒。
因此通过计算，中断时长3为T3，即T3＝T1+T2＝46ms，归整到整周期。则在中断时长3时间内补点个数为N＝12点。
假设诊断前最后有效信号为S1，诊断后第一个有效信号为S2.
则：S补[n]＝(S2-S1)*n/(N+1)，其中n取值范围1到N。最终经过线性插值在中断时长3内补全如图5所示的12个信号，并丢弃在中断时长3内采集的无效信号(图中5虚线所示)。
本实施例的技术方案，根据检测频率计算中断时长内丢失的检测信号的个数，补全丢失的检测信号。能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。
实施例三
图6为本发明实施例三的一种血氧探头故障诊断装置的结构示意图。本实施例可适用于血氧探头故障诊断的情况，该装置可采用软件和/或硬件的方式实现，该装置可集成在任何提供血氧探头故障诊断装置的设备中，如图6所示，所述血氧探头故障诊断装置具体包括：故障诊断模块31、中断时长确认模块32、信号个数计算模块33和信号补全模块34。
其中，故障诊断模块，用于根据预设的诊断周期进行故障检测；中断时长确认模块，用于确认所述诊断周期内血氧检测的中断时长；信号个数计算模块，用于根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；信号补全模块，用于根据已检测的检测信号补全丢失的检测信号。
可选的，所述中断时长确认模块，具体用于：获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；
根据所述诊断时长和无效时长确认所述中断时长。
可选的，所述信号补全模块，包括：第一检测信号获取单元，用于获取所述中断时长之前最后一个有效的第一检测信号；
第二检测信号获取单元，用于获取所述中断时长之后第一个有效的第二检测信号；
检测信号补全单元，用于根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
可选的，所述检测信号补全单元，具体用于：
根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
可选的，所述诊断周期为T秒，3≤T≤10。
本实施例的技术方案，通过根据预设的诊断周期进行故障检测；确认所述诊断周期内血氧检测的中断时长；根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；根据已检测的检测信号补全丢失的检测信号。能够在维持原有的探头故障检测的情况下，保证血氧检测的检测信号完整。
上述产品可执行本发明任意实施例所提供的方法，具备执行方法相应的功能模块和有益效果。
注意，上述仅为本发明的较佳实施例及所运用技术原理。本领域技术人员会理解，本发明不限于这里所述的特定实施例，对本领域技术人员来说能够进行各种明显的变化、重新调整和替代而不会脱离本发明的保护范围。因此，虽然通过以上实施例对本发明进行了较为详细的说明，但是本发明不仅仅限于以上实施例，在不脱离本发明构思的情况下，还可以包括更多其他等效实施例，而本发明的范围由所附的权利要求范围决定。

Claims (10)

  1. 一种血氧探头故障诊断方法，其特征在于，包括：
    根据预设的诊断周期进行故障检测；
    确认所述诊断周期内血氧检测的中断时长；
    根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；
    根据已检测的检测信号补全丢失的检测信号。
  2. 根据权利要求1所述的方法，其特征在于，所述确认所述诊断周期内血氧检测的中断时长，包括：
    获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；
    根据所述诊断时长和无效时长确认所述中断时长。
  3. 根据权利要求1所述的方法，其特征在于，所述根据已检测的检测信号补全丢失的检测信号，包括：
    获取所述中断时长之前最后一个有效的第一检测信号；
    获取所述中断时长之后第一个有效的第二检测信号；
    根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述第一检测信号和所述第二检测信号补全丢失的检测信号，具体为：
    根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
  5. 根据权利要求1所述的方法，其特征在于，所述诊断周期为T秒，3≤T≤10。
  6. 一种血氧探头故障诊断装置，其特征在于，包括：
    故障诊断模块，用于根据预设的诊断周期进行故障检测；
    中断时长确认模块，用于确认所述诊断周期内血氧检测的中断时长；
    信号个数计算模块，用于根据所述血氧检测的频率计算所述中断时长内丢失的检测信号的个数；
    信号补全模块，用于根据已检测的检测信号补全丢失的检测信号。
  7. 根据权利要求6所述的装置，其特征在于，所述中断时长确认模块，具体用于：
    获取所述诊断周期内所述血氧探头的诊断时长和检测信号的无效时长；
    根据所述诊断时长和无效时长确认所述中断时长。
  8. 根据权利要求6所述的装置，其特征在于，所述信号补全模块，包括：
    第一检测信号获取单元，用于获取所述中断时长之前最后一个有效的第一检测信号；
    第二检测信号获取单元，用于获取所述中断时长之后第一个有效的第二检测信号；
    检测信号补全单元，用于根据所述第一检测信号和所述第二检测信号补全丢失的检测信号。
  9. 根据权利要求8所述的装置，其特征在于，所述检测信号补全单元，具体用于：
    根据所述第一检测信号、所述第二检测信号和所述个数进行线性插值，补全丢失的检测信号。
  10. 根据权利要求6所述的装置，其特征在于，所述诊断周期为T秒，3≤T≤10。
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