JP2009279076A - Monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitoring system reducing the time and labor of temperature detecting work when monitoring the body temperature of a person to be monitored. <P>SOLUTION: The monitoring system 1 for monitoring a patient 103 inside a sickroom 101 includes: a thermo camera 2 for imaging the inside of the sickroom 101 and acquiring a temperature distribution; a body temperature acquisition part 52 for acquiring the information of the body temperature of the patient 103 from the temperature distribution obtained from the thermo camera 2; an information storage part 9 for storing the information of the body temperature at each point of time of the patient 103 acquired in the body temperature acquisition part 52 and preserving it as body temperature history information 91; and an alarm processing part 55 for outputting an alarm signal when judging that the pattern of the time change of the body temperature of the patient 103 is pertinent to a predetermined prescribed abnormal pattern. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a monitoring system used to monitor a patient in a hospital room, for example.

Conventionally, in a hospital, the temperature of a patient in a hospital room is regularly measured, and a history of body temperature is recorded and stored. In this body temperature measurement, for example, the armpit body temperature may be measured using a mercury thermometer, or an infrared thermometer as shown in Patent Document 1 below may be used.
JP-A-5-203499

  However, in order to create a body temperature history by such a method, for example, a nurse needs to regularly go to the patient's room and perform a temperature measurement operation. In addition, when a patient is suspected of having a rapid temperature change, more frequent body temperature measurement is required, which requires a lot of time and labor for the nurse to perform the temperature measurement.

  Then, in view of this problem, an object of this invention is to provide the monitoring system which can reduce the effort of a temperature measurement operation | work when monitoring the body temperature of a to-be-monitored person.

  A monitoring system according to the present invention is a monitoring system for monitoring a person staying in a room to be monitored, which is a thermo camera that images the inside of the room and obtains a temperature distribution, and the temperature to be monitored from the temperature distribution obtained by the thermo camera. Body temperature acquisition unit for acquiring information on the body temperature of the person, history information storage unit for storing body temperature information at each time point of the monitored person acquired by the body temperature acquisition unit, and storing it as body temperature history information, and based on the body temperature history information And a warning processing unit that outputs a warning signal when it is determined that the pattern of change in body temperature of the monitored person corresponds to a predetermined abnormal pattern.

  In this monitoring system, the body temperature of the monitored person is acquired by imaging the inside of the room with a thermo camera, and the body temperature information at each time point is accumulated, so the body temperature history information of the monitored person is automatically created. This makes it possible to reduce the labor of temperature measurement. In addition, when the pattern of the temporal change in the body temperature of the monitored person corresponds to the abnormal pattern, a warning signal is output by the warning processing unit, so that the monitoring burden on the monitoring person is reduced.

  The monitoring system of the present invention further includes an abnormal pattern data storage unit that stores a first body temperature reference value, a comparison reference time, and a second body temperature reference value as information related to a predetermined abnormality pattern. The warning processing unit refers to the abnormal pattern data storage unit, and if the current body temperature of the monitored person obtained by the body temperature acquisition unit is equal to or higher than the first body temperature reference value, the warning processing unit is stored in the history information storage unit. When the body temperature of the monitored person at a past time point that is earlier than the present by referring to the body temperature history information is read, and the body temperature of the monitored person at the past time point is equal to or lower than the second body temperature reference value May be determined that the pattern of temporal change in the body temperature of the monitored person corresponds to a predetermined abnormal pattern.

  According to this configuration, when the body temperature of the monitored person changes from the second body temperature reference value to the first body temperature reference value within the comparison reference time, this body temperature change can be detected. Therefore, it is possible to cope with the case where a rapid change in body temperature within a predetermined time in the monitored person is monitored.

  Further, in the monitoring system of the present invention, the warning processing unit further determines that there is a predetermined abnormality in the body temperature of the monitored person based on the body temperature of the monitored person acquired by the body temperature acquiring unit. A warning signal may be output.

  According to this configuration, it is possible to detect not only abnormalities in the body temperature of the monitored person over time but also abnormalities in the body temperature of the monitored person at the present time.

  The monitoring system of the present invention further includes a body temperature range information storage unit that stores a body temperature upper limit value and a body temperature lower limit value as information relating to a predetermined abnormality, and the warning processing unit refers to the body temperature range information storage unit Then, when the current body temperature of the monitored person obtained by the body temperature acquisition unit is equal to or higher than the body temperature upper limit value or lower than the body temperature lower limit value, it may be determined that there is a predetermined abnormality in the body temperature of the monitored person.

  According to the monitoring system of the present invention, it is possible to reduce the labor of the temperature measurement work when monitoring the body temperature of the monitored person.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of a monitoring system according to the present invention will be described in detail with reference to the drawings.

  A monitoring system 1 shown in FIG. 1 is a system that is constructed in a hospital and monitors the body temperature of a patient 103 in a hospital room 101 in a non-contact and real-time manner. In the following description, monitoring when the patient 103 is suspected of being infected with influenza will be described as an example.

  This monitoring system 1 is installed near the ceiling in a hospital room 101, and an infrared thermocamera 2 that continuously images the interior of the hospital room 101 with moving images, and an information processing apparatus 3 that processes an image signal from the thermocamera 2 (for example, Personal computer).

  The information processing device 3 includes an information processing unit 5 that performs various types of information processing and control, an information storage unit 9 that stores information, a display monitor 7 that outputs information processing results as a screen display, and an alarm that issues an alarm. A reporting unit 11 is provided. The image processing unit 51 of the information processing unit 5 visualizes the two-dimensional temperature distribution of the imaging region of the thermocamera 2 based on the imaging signal from the thermocamera 2 and outputs it to the monitor 7 in real time. On the monitor 7, a moving image of a temperature distribution display screen in which the temperature of each part in the hospital room 101 is converted into a color is displayed.

  In addition, the information processing unit 5 includes a body temperature acquisition unit 52 that acquires the current body temperature of the patient 103. Based on the temperature distribution of the imaging region, the body temperature acquisition unit 52 recognizes the human contour existing in the imaging region, and acquires the temperature of the human contour portion as the current body temperature of the patient 103. The body temperature acquisition unit 52 periodically records body temperature information in which the body temperature of the obtained patient 103 is associated with the current time obtained from the system clock 53 in the information storage unit 9. In the information storage unit 9, body temperature history information 91 in which the body temperature information is accumulated is created.

The information storage unit 9 also records abnormal pattern information 92 indicating an abnormal pattern in a human body temperature change over time. Specifically, a body temperature change pattern seen when a person is infected with influenza is an abnormal pattern, and parameter information representing the abnormal pattern is stored as the abnormal pattern information 92. In general, when a person is infected with influenza, it is known that a fever with a body temperature of 38.5 ° C. occurs within 6 hours from the state of normal heat. Corresponding to this finding, here as a parameter indicating the abnormal pattern,
T1 = 38.5 ° C. (first body temperature reference value)
A = 6 hours (reference time for comparison)
T2 = normal temperature of the patient to be monitored (second temperature reference value)
These three parameters are set. It should be noted that an appropriate value as the normal body temperature of the patient 103 is input in advance to the parameter T2 from the input unit 54 of the information processing unit 5 by the user of the monitoring system 1 (hereinafter referred to as “monitorer”). Here, it is assumed that T2 = 36.0 ° C. is set. Further, the monitor can input / edit the parameters T1, A, T2 from the input unit 54 of the information processing unit 5.

  The warning processing unit 55 of the information processing unit 5 transmits a warning signal to the warning notification unit 11 when the body temperature change of the patient 103 in the body temperature history information 91 corresponds to the abnormal pattern registered in the abnormal pattern information 92. To do. That is, the warning processing unit 55 transmits a warning signal when the body temperature of the patient 103 reaches 38.5 ° C. within 6 hours from the normal body temperature.

  Furthermore, the upper limit value and the lower limit value of the normal body temperature of the person are recorded as the body temperature range information 93 in the information storage unit 9. For example, here, it is assumed that the upper limit value T3 = 37.5 ° C. and the lower limit value T4 = 35.0 ° C. are set. The monitor can input / edit the upper limit value T3 and the lower limit value T4 in the body temperature range information 93 from the input unit 54 of the information processing unit 5. Then, the warning processing unit 55 determines that the current body temperature of the patient 103 obtained by the body temperature acquisition unit 52 is equal to or higher than the upper limit value T3 (37.5 ° C.) or lower limit value T4 (35.0 ° C.) in the body temperature range information 93. If it is, a warning signal is transmitted to the warning notification unit 11.

  When receiving a warning signal, the warning notification unit 11 performs warning notification such as sounding a buzzer or blinking a lamp according to the warning signal. This warning allows the supervisor to know that the change in body temperature of the patient 103 corresponds to the abnormal pattern and that the current body temperature of the patient 103 is abnormal. The warning notification unit 11 that has received the warning signal may perform a process of displaying a warning screen on the monitor 7. Further, as a form of warning issuing by the warning issuing unit 11, processing such as making a call to the monitor's mobile phone may be considered.

  Hereinafter, a specific process of monitoring the patient 103 in the monitoring system 1 will be described with reference to FIG.

  First, the body temperature acquisition unit 52 detects the human contour from the two-dimensional temperature distribution of the imaging region captured by the thermo camera 2 and acquires the temperature of the human contour portion as the current body temperature T of the patient 103. (S201). In this case, the highest temperature in the human contour may be the current body temperature T of the patient 103, and the average temperature in the contour may be the current body temperature T of the patient 103. Alternatively, a human part may be specified by performing image processing, and the temperature of the specific part (eg, head temperature, abdominal temperature, etc.) may be adopted as the current body temperature T of the patient 103.

  And the body temperature acquisition part 52 produces | generates the body temperature information which linked | related the body temperature T of the obtained patient 103, and the present time obtained from the system clock 53, writes in the information storage part 9, and updates the body temperature history information 91 ( S203).

  Next, the warning processing unit 55 reads parameters T1 (38.5 ° C.), A (6 hours), and T2 (36.0 ° C.) of the abnormal pattern information 92 from the information storage unit 9 (S205). Then, the warning processing unit 55 compares the current body temperature T of the patient 103 obtained by the body temperature acquisition unit 52 with 38.5 ° C. (T1) (S207). When the current body temperature of the patient 103 is 38.5 ° C. (T1) or higher, the warning processing unit 55 displays the past body temperature Tp of the patient 103 6 hours before (A time before) the current time. Read from the information 91 (S209). Then, the warning processing unit 55 compares the read past body temperature Tp with 36.0 ° C. (T2) (S211).

  Here, if the past body temperature Tp of 6 hours ago was 36.0 ° C. or lower (normal body temperature), the body temperature of the patient 103 was changed from the normal body temperature to 38.5 ° C. within 6 hours. Since it means that it has risen rapidly, it is strongly suspected that the patient 103 is infected with influenza. Accordingly, when the body temperature Tp before A time is equal to or smaller than the parameter T2 in S209, the warning processing unit 55 transmits a warning signal indicating that there is an abnormality in body temperature to the warning reporting unit 11 (S213). . Then, the warning notification unit 11 performs warning notification indicating that there is an abnormality in the body temperature change.

  On the other hand, if the current body temperature T of the patient 103 is lower than the parameter T1 in S207, and if the body temperature Tp before A time is larger than the parameter T2 in S211, the next process is performed without transmitting a warning signal (S215). Migrate to

  Subsequently, it is determined whether there is an abnormality in the body temperature T of the current patient 103 obtained by the body temperature acquisition unit 52. That is, the warning processing unit 55 reads the body temperature upper limit value T3 (37.5 ° C.) and the body temperature lower limit value T4 (38.0 ° C.) of the body temperature range information 93 from the information storage unit 9 (S215). Then, the warning processing unit 55 compares the body temperature T of the current patient 103 obtained by the body temperature acquisition unit 52 with 37.5 ° C. (T3) (S217). When the body temperature T of the patient 103 is 37.5 ° C. (T3) or higher, the warning processing unit 55 transmits a warning signal indicating that the body temperature of the patient 103 is too high to the warning reporting unit 11 ( S219). Then, the warning notification unit 11 performs a warning notification indicating that the body temperature is too high.

  When the body temperature T of the patient 103 is lower than 37.5 ° C. in S217, the body temperature T of the patient 103 is compared with 35.0 ° C. (T4) (S221). And when the patient's 103 body temperature is 35.0 degreeC (T4) or less, the warning process part 55 transmits the warning signal that the patient's 103 body temperature is too low with respect to the warning alerting | reporting part 11 (S223). ). And warning alerting | reporting part 11 performs warning alerting | reporting which shows that body temperature is too low. On the other hand, when the body temperature T of the patient 103 is higher than 35.0 ° C. and lower than 37.5 ° C., the process is terminated without transmitting a warning signal.

  In the monitoring system 1, the processes S201 to S223 as described above are performed periodically (for example, every minute).

  Next, the hardware configuration of the information processing apparatus 3 will be described. As shown in FIG. 3, the information processing apparatus 3 physically includes a CPU 111, a RAM 112 and a ROM 113 as main storage devices, an auxiliary storage device 115 such as a hard disk, an input device 116 such as a keyboard and a mouse as input devices, The computer system includes an output device 117 such as a display and a communication module 114 which is a data transmission / reception device such as a network card. Each function described in FIG. 1 has a communication module 114, an input device 116, and an output device 117 under the control of the CPU 111 by reading predetermined computer software on the hardware such as the CPU 111 and the RAM 112 shown in FIG. This is realized by reading and writing data in the RAM 112 and the auxiliary storage device 115.

  According to the monitoring system 1 described above, since the body temperature of the patient 103 is acquired and the body temperature history information 91 is automatically accumulated by imaging the inside of the hospital room 101 with the thermo camera 2, the labor of the temperature measurement work is reduced. can do. Further, when the temporal change pattern of the body temperature of the patient 103 corresponds to an abnormal pattern, a warning is issued by the warning processing unit 55 and the warning reporting unit 11, so that the monitoring burden on the supervisor is reduced. The In addition, since the body temperature history information 91 is accumulated in the information storage unit 9, it becomes possible to examine the changes in the body temperature of the patient 103 after the fact.

  Moreover, in this monitoring system 1, this change in body temperature is detected when the body temperature of the patient 103 suddenly changes from normal body temperature to 38.5 ° C. within 6 hours. The situation in which such a body temperature change occurs is a situation in which it is strongly suspected that the patient 103 is infected with influenza. Therefore, this monitoring system 1 can detect in real time a situation in which the patient 103 is strongly suspected of being infected with influenza. As a result, it is possible to quickly respond to influenza, for example, administration of a medicine that should be administered quickly after fever.

  In addition, the monitoring system 1 can detect not only an abnormality in the body temperature of the patient 103 over time but also an abnormality such as the current body temperature of the patient 103 being too high or too low.

  Further, in this monitoring system 1, since the body temperature of the patient 103 can be detected in a non-contact manner by using a thermo camera, the patient 103 feels compared to a system in which a contact body temperature sensor is attached to the patient 103. Annoyance is reduced. Further, the body temperature can be measured even when the patient 103 moves around in the hospital room 101. Further, in the method of measuring the armpit temperature of the patient 103 with the thermometer, the measurement value may become inaccurate due to the variation in the contact state of the thermometer, but the monitoring system 1 does not cause such a problem, and more Accurate body temperature can be detected.

  Moreover, in this monitoring system 1, since the inside of the hospital room 101 is continuously imaged with the thermo camera 2, the information processing apparatus 3 recognizes the entire image and movement of the patient 103 by performing image processing. You can also. Therefore, the information processing apparatus 3 detects the presence or absence of body movement or wrinkle (movement) of the patient 103 and accumulates it in the information storage unit 9 as data, or evaluates based on the accumulated data (for example, detects an abnormality and issues a warning). Etc.).

  The present invention is not limited to the embodiment described above. For example, by appropriately changing the program executed by the warning processing unit 55 in the monitoring system 1, the monitoring system of the present invention is not limited to the patient's influenza infection, and the monitoring system of the present invention can be detected based on the patient's body temperature and / or body temperature change. It can also be applied to the detection of abnormalities.

  In the monitoring system of the present invention, body temperature for each part of the patient may be acquired by temperature distribution screen processing of the imaging region, and a plurality of body temperature information for each part may be acquired and accumulated as body temperature history information. According to such a configuration, for example, the monitoring system of the present invention can be applied to the discovery of arthritis in which an abnormality occurs in the temperature of the joint portion of a patient.

  In the embodiment, the monitoring system of the present invention is applied to monitoring a patient in a hospital room. However, the monitoring system of the present invention can also be applied to monitoring an elderly person in an elderly house, for example.

It is a functional block diagram which shows one Embodiment of the monitoring system which concerns on this invention. It is a flowchart which shows the process of the patient monitoring by the monitoring system of FIG. It is a block diagram which shows the hardware structure of the information processing apparatus shown by FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Monitoring system, 2 ... Thermo camera, 9 ... Information storage part (History information storage part, Abnormal pattern data storage part, Body temperature range storage part), 52 ... Body temperature acquisition part, 55 ... Warning processing part, 91 ... Body temperature history information , 92: Abnormal pattern information, 101: Hospital room (monitored room), 103: Patient (monitored person).

Claims (4)

A monitoring system for monitoring a person staying in a monitored room,
A thermo camera that images the inside of the room and obtains a temperature distribution;
A body temperature acquisition unit for acquiring information on the body temperature of the monitored person from the temperature distribution obtained by the thermo camera;
A history information accumulating unit for accumulating body temperature information at each time point of the monitored person acquired by the body temperature acquiring unit and storing it as body temperature history information;
Based on the body temperature history information, when it is determined that the pattern of change in body temperature of the monitored person corresponds to a predetermined abnormal pattern, a warning processing unit that outputs a warning signal;
A monitoring system characterized by comprising: As the information related to the predetermined abnormality pattern, an abnormal pattern data storage unit that stores the first body temperature reference value, the comparison reference time, and the second body temperature reference value is further provided,
The warning processing unit
Refer to the abnormal pattern data storage unit,
If the current body temperature of the monitored person obtained by the body temperature acquisition unit is equal to or higher than the first body temperature reference value, the body temperature history information accumulated in the history information accumulation unit is referred to and Read the body temperature of the monitored person at a past time point back by the reference time,
When the body temperature of the monitored person at the past time point is equal to or lower than the second body temperature reference value, it is determined that the pattern of the body temperature of the monitored person over time corresponds to the predetermined abnormal pattern. The monitoring system according to claim 1. The warning processing unit
Further, when it is determined that there is a predetermined abnormality in the body temperature of the monitored person based on the body temperature of the monitored person acquired by the body temperature acquiring unit, the warning signal is output. The monitoring system according to claim 1 or 2. As the information on the predetermined abnormality, further comprising a body temperature range information storage unit for storing a body temperature upper limit value and a body temperature lower limit value,
The warning processing unit
Refer to the body temperature range information storage unit,
When the body temperature of the monitored person obtained by the body temperature acquisition unit is not less than the body temperature upper limit value or not more than the body temperature lower limit value,
The monitoring system according to claim 3, wherein it is determined that the predetermined abnormality exists in the body temperature of the monitored person.

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