WO2021019712A1 - Système de mesure de température, unité de capteur de mesure de température et procédé de changement de configuration de système de mesure de température - Google Patents

Système de mesure de température, unité de capteur de mesure de température et procédé de changement de configuration de système de mesure de température Download PDF

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Publication number
WO2021019712A1
WO2021019712A1 PCT/JP2019/029964 JP2019029964W WO2021019712A1 WO 2021019712 A1 WO2021019712 A1 WO 2021019712A1 JP 2019029964 W JP2019029964 W JP 2019029964W WO 2021019712 A1 WO2021019712 A1 WO 2021019712A1
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Prior art keywords
temperature
resistance
temperature measurement
electric
terminals
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PCT/JP2019/029964
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English (en)
Japanese (ja)
Inventor
小田根　昌弘
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三菱電機ビルテクノサービス株式会社
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Application filed by 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機ビルテクノサービス株式会社
Priority to PCT/JP2019/029964 priority Critical patent/WO2021019712A1/fr
Priority to JP2019572697A priority patent/JP6756935B1/ja
Priority to CN201980098417.7A priority patent/CN114144645A/zh
Publication of WO2021019712A1 publication Critical patent/WO2021019712A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit

Definitions

  • the present invention relates to a temperature measuring system, a temperature measuring sensor unit, and a method for changing the configuration of the temperature measuring system.
  • the technology for measuring temperature using a resistance temperature detector is known.
  • the temperature measurement may be performed by a 3-wire system or a 2-wire system.
  • FIG. 6 is a diagram showing an outline of a conventionally used three-wire temperature measuring system 110 (see, for example, Patent Documents 1 to 3 below).
  • three electric wires 114, 116, and 118 are connected to the controller 112.
  • the electric wires 114, 116, and 118 have the same length, thickness, and material, and all have the same electric resistance R. However, the electric resistance R changes depending on the temperature.
  • the resistance temperature detector 120 has an electric resistance Rpt1 that changes depending on the temperature, and its two ends are connected to the tips of the electric wires 114 and 116.
  • the resistance temperature detector 120 for example, Pt100, which is a standard product made of platinum and whose electrical resistance at 0 ° C. is set to 100 ⁇ , is used.
  • the resistance temperature detector 120 which is a standard product, the relationship between the electrical resistance and the temperature is clear, and the temperature can be obtained from the electrical resistance of the resistance temperature detector 120.
  • the tip of the electric wire 118 is also connected to the tip of the electric wire 116.
  • the controller switches the switch to disconnect the electric wire 114 from the circuit and pass a current through the circuit (indicated by the arrow 124) passing through the electric wires 116 and 118 to measure the voltage of this circuit and the electric resistance R2.
  • R2 R + R ... (Equation 2)
  • the electrical resistance Rpt1 of the resistance temperature detector 120 can be obtained.
  • Rpt1 R1-R2 ... (Equation 3) That is, the electric resistance Rpt1 corresponds to the difference between the electric resistances R1 and R2 obtained by measurement.
  • the temperature of the resistance temperature detector 120 can be obtained.
  • FIG. 7 is a diagram showing an outline of a conventional two-wire temperature measuring system 130.
  • Two electric wires 134 and 136 having the same electric resistance R are connected to the controller 132.
  • a resistance temperature detector 138 having an electric resistance Rpt2 is connected to the tip of the electric wires 134 and 136.
  • Rpt2 one having an electric resistance Rpt2 that is sufficiently larger than the electric resistance R of the electric wire and having the following relationship is used.
  • Rpt2 >> R ⁇ ⁇ ⁇ (Equation 4)
  • Pt1000 and Pt3000 which are standard products made of platinum and having an electric resistance of 1000 ⁇ or 3000 ⁇ at 0 ° C.
  • the electric resistance R3 of this circuit is measured by passing a current through a circuit (indicated by an arrow 140) passing through the electric wires 134 and 136 and measuring the voltage.
  • R3 R + Rpt2 + R ... (Equation 5)
  • the following approximation can be made by using Equation 4.
  • R3 Rpt2 (1 + 2 * R / Rpt2) ⁇ Rpt2 ⁇ ⁇ ⁇ (Equation 6) Therefore, the electric resistance Rpt2 has the same value as the measured electric resistance R3.
  • the temperature of the resistance temperature detector 138 can be obtained.
  • the 2-wire temperature measurement system 130 shown in FIG. 7 is widely used in buildings with a long age.
  • the resistance temperature detector 138 will be replaced.
  • the resistance temperature detector 138 is replaced from Pt1000 or Pt3000, which has been widely used in the past, to Pt100, which is currently used as a standard, the equation 4 is not satisfied, and the temperature measurement error in the temperature measurement system 130 It will increase. Therefore, it cannot be simply exchanged for Pt100. For this reason, in the replacement work, for example, it is necessary to introduce an expensive sensor having a built-in 4 to 20 mA output converter, or to rewire the electric wire and shift to the 3-wire system.
  • An object of the present invention is to make it possible to use a resistance temperature detector having a small electrical resistance in a two-wire temperature measurement system.
  • the temperature measuring system has two terminals, and one end is connected to each of the two terminals and a measuring means for measuring the electric resistance between the two terminals by energizing between the two terminals.
  • One aspect of the temperature measuring system according to the present invention is characterized in that the switch autonomously switches on and off.
  • the calculation means is off from the electric resistance when the bypass wire is energized based on the fluctuation of the electric resistance measured by the measuring means.
  • the electric resistance in the case of the above is detected, and the electric resistance of the resistance temperature detector or the corresponding temperature is calculated.
  • the electrical resistance or the corresponding temperature of the resistance temperature detector calculated by the calculation means is compared with the comparison data to detect deterioration or abnormality of the temperature measurement system. It is characterized in that it is provided with a deterioration abnormality detecting means.
  • One aspect of the temperature measurement system according to the present invention is characterized in that the comparison data is data on the electrical resistance of the resistance temperature detector or the corresponding temperature calculated in the past.
  • the comparison data is data on the electrical resistance or the corresponding temperature of another resistance temperature detector arranged in a common or similar space. To do.
  • the switch when the switch turns on the energization of the bypass electric wire, the switch switches the energization of the resistance temperature detector off and turns on the bypass electric wire.
  • the energization is switched off, the energization of the resistance temperature detector is switched on.
  • the switch switches the energization of the bypass electric wire on and off in a state where the two electric wires and the resistance temperature measuring resistor are connected. It is characterized by.
  • the temperature measurement sensor unit is characterized by including a temperature measurement resistor and a bypass electric wire connected in parallel, and a switch for switching on / off of energization of the bypass electric wire.
  • the measuring means having two terminals and energizing between the two terminals to measure the electric resistance between the two terminals and each of the two terminals It is a method of changing the configuration of a resistance temperature measuring system including two electric wires to which one end is connected and a resistance temperature detector connected to the other end of the two electric wires, and the resistance temperature detector is removed. It is characterized by including a step and a step of attaching the temperature measuring sensor unit to the other ends of the two electric wires.
  • a two-wire temperature measurement can be performed by using a resistance temperature detector having a smaller electrical resistance than the conventional one.
  • FIG. 1 is a diagram showing a schematic configuration of the temperature measuring system 10 according to the embodiment.
  • the temperature measurement system 10 includes a controller 20, two electric wires 30 and 32, a temperature measurement sensor unit 40, and a PC (Personal Computer) 50.
  • PC Personal Computer
  • the temperature measuring system 10 is installed in the building.
  • the controller 20 is a device installed in the central control room of the building to control the temperature measurement in the building.
  • the controller 20 includes a plurality of sets of two terminals, including a set of the two terminals 22 and 24 shown in the figure. Further, the controller 20 measures a switching circuit for switching a set of two terminals to be measured, a constant current circuit for passing a constant current to the set of two terminals to be measured, and a voltage between the two terminals to which the current is passed. It also has a voltmeter to calculate the electrical resistance by dividing the measured voltage by the current and a processor to calculate the temperature from the electrical resistance. A voltmeter and a processor are examples of measuring means for measuring the electrical resistance between two terminals. The processor is also an example of a calculation means for calculating the electrical resistance of a resistance temperature detector or the corresponding temperature.
  • the electric wires 30 and 32 are connected to the terminals 22 and 24, respectively, and the other ends 30a and 32a are connected to the temperature measurement sensor unit 40.
  • the electric wires 30 and 32 extend from the central control room to the installation location of the temperature measurement sensor unit 40, and typically have a length of several tens of meters or 100 meters or more.
  • the electric wires 30 and 32 each have an electric resistance R.
  • the end of the temperature measurement sensor unit 40 is connected to the terminals 30a and 32a at the tips of the electric wires 30 and 32, respectively.
  • the temperature measurement sensor unit 40 includes a bypass electric wire 42 having an electric resistance Rb, a resistance temperature detector 44 having an electric resistance Rpt3, and a switch 46.
  • the bypass wire 42 and the resistance temperature detector 44 are connected in parallel.
  • the switch 46 selectively connects the bypass wire 42 and the resistance temperature detector 44. That is, the switch 46 turns on the bypass wire 42 (that is, in a state where it can be energized) and turns off the resistance temperature detector 44 (that is, in a state where it is not energized), or turns off the bypass wire 42 and turns on the resistance temperature detector 44. Switch whether to do it.
  • the switch 46 has an electrical resistance Rs.
  • the PC 50 is a computer in which computer hardware such as a processor, memory, and touch panel is controlled by an OS (Operation System), an application program (application), and the like.
  • the PC 50 is an example of deterioration abnormality detecting means, and is connected to the controller 20 and detects deterioration or abnormality of the temperature measuring system 10 based on the temperature data output by the controller 20.
  • the switch 46 is switched to perform measurement.
  • the electrical resistance R4 on the left side is obtained by dividing the measured value of the voltmeter by the current.
  • the electrical resistance R5 on the left side is obtained by dividing the measured value of the voltmeter by the current.
  • Equation 9 Equation 9 can be approximated as: Rpt3 ⁇ R5-R4 ⁇ ⁇ ⁇ (Equation 10)
  • the electrical resistance Rpt3 of the resistance temperature detector 44 is equal to the difference between the two electrical resistances R5 and R4 obtained by switching the switch 46.
  • the electric resistance Rpt3 does not have a binding condition corresponding to the equation 4 in the above-mentioned two-wire temperature measuring system 130. Therefore, as the resistance temperature detector 44, not only Pt1000 or Pt3000 can be used, but also Pt100, which is currently used as a standard, can be used.
  • the controller 20 for example, in the form of a look-up table, information on the relationship between the electric resistance Rpt3 and the temperature is stored in the memory. Then, the processor calculates the temperature corresponding to the electric resistance Rpt3 by linear interpolation or the like. In the temperature measuring system 10, it is necessary to measure the temperature with the target accuracy. In normal building management, the target accuracy is set to about plus or minus 0.5 ° C. Even when the resistance temperature detector 44 of Pt100 is used as the resistance temperature detector 44, the effect of ignoring the electrical resistance Rb of the bypass wire 42 when deriving the equation 10 is very small, and this target accuracy can be achieved without any problem. Can be achieved.
  • the controller 20 measures the temperature at many points in the building according to the program. Specifically, the controller 20 sequentially switches the circuit for the point to be measured by the internal switch, and performs the temperature measurement based on the above equation 10. The measurement result is stored in the storage device.
  • FIG. 2 is a diagram showing an example of the switch 46a that connects and disconnects the terminal 30a and the bypass electric wire 42 among the switches 46.
  • the switch 46a is formed by using an NPN junction type bipolar transistor 64 which is a semiconductor element.
  • a terminal 30a is connected to the collector of the bipolar transistor 64, and a bypass electric wire 42 is connected to the emitter.
  • the base current is input to the base from the crystal oscillator circuit 62.
  • the crystal oscillator circuit 62 is built in the temperature measurement sensor unit 40 and is driven by a direct current from the battery 60 to output a base current that becomes a timing signal. Examples of the timing signal include a signal that repeats a state in which the base current is set to 0 (voltage is 0V) for 1 second and a predetermined base current is passed for the next 1 second (a predetermined voltage is applied).
  • the switch 46a cuts the terminal 30a and the bypass wire 42 when the base current is not passed, and connects the terminal 30a and the bypass wire 42 when a predetermined base current is passed.
  • the switch 46 illustrated in FIG. 2 autonomously switches on and off in the temperature measurement sensor unit 40.
  • “autonomous” means that the temperature measurement sensor unit 40 operates independently without being controlled by the controller 20 or the PC 50. Therefore, the controller 20 needs to detect the changeover of the switch 46.
  • the electric resistance R5 when the bypass wire 42 is turned off and the resistance temperature detector 44 is turned on is the case where the bypass wire 42 is turned on and the resistance temperature detector 44 is turned off. It is clearly larger than the electrical resistance R4. Therefore, the controller 20 detects the switching state of the switch 46 by detecting the fluctuation of the magnitude of the electric resistance (or the magnitude of the voltage measured by the voltmeter).
  • the switch 46 can be formed in various forms by using a semiconductor element other than those illustrated in FIG. Further, the switch 46 may be formed by using a relay instead of the semiconductor element or in combination with the semiconductor element.
  • a relay has a drawback that the degree of deterioration is more severe than that of a semiconductor element, but it has an advantage that the electric resistance when it is turned on can be made very small.
  • switch 46 it is also possible to use a switch 46 that operates under the control of the controller 20 instead of the autonomous switch 46.
  • Examples of such a switch 46 include a switch 46 that operates based on an electric signal transmitted from the controller 20 via the electric wire 30.
  • the switch 46 is operated by the built-in battery 60.
  • the battery 60 is consumed with time, the temperature measuring system 10 can be continuously operated by replacing the battery 60 at the timing of maintenance of the building.
  • a capacitor may be provided, electric energy may be stored based on the electric power from the electric wire 30, and the switch 46 may be driven.
  • the temperature measured by the controller 20 is input and compared with the comparison data to be compared, so that the temperature measuring system 10 detects deterioration or abnormality in which the correct temperature cannot be measured.
  • FIG. 3 is a diagram illustrating a case where past log data at the same point is used as comparison data.
  • FIG. 3 illustrates log data of temperature measurement on the assumption that the resistance temperature detector 44 of the temperature measurement system 10 is provided at the second point of Room 4 on the 18th floor of Building A.
  • the log data is provided with items of date, time, and temperature, and log data for the past several years is recorded in chronological order. According to the illustrated log data of August 1, 2018, the temperature was 27.5 ° C at 10:00, 27.8 ° C at 10:15, and 27.4 ° C at 10:30.
  • the temperature was controlled by the air conditioner.
  • the current time is August 1, 2019.
  • the values of 27.9 ° C. at 10:00, 35.5 ° C. at 10:15, and 35.2 ° C. at 10:30 were measured.
  • the PC50 compares the measured temperature with the temperature at the same point at the same time in the past from time to time. In the example of FIG. 3, it is compared with the data at the same time on August 1, 2018, which is one year ago. As a result, at 10:00, there is only a difference of + 0.4 ° C compared to the data at 10:00 a year ago, and the reference value (for example, plus or minus 3 degrees or plus or minus 5 degrees). It is judged that there is no particular deterioration or abnormality within the range of.
  • the temperature is + 7.7 ° C. compared to the log data at 10:15 one year ago, and it is determined that the temperature exceeds the standard value. Further, at 10:30, the temperature is + 7.8 ° C. compared to the log data at 10:30 one year ago, and it is also judged that the temperature exceeds the reference value. If the condition for detecting deterioration or abnormality is that the reference value is exceeded twice in a row, the PC 50 determines that the deterioration or abnormality has occurred at 10:30. Therefore, the PC 50 notifies the maintenance manager by displaying a screen indicating that deterioration or abnormality has been detected at the second point of Room 4 on the 18th floor of Building A.
  • the log data of the same month one year ago was compared, but other comparison data can be selected. For example, it may be compared with the same day of the week around one year ago, or it may be compared with the average value of a plurality of days around one year ago. It is also conceivable that such comparison targets are not limited to the past year but also the past several years.
  • FIG. 4 is a diagram for explaining an embodiment in which the measurement result by another resistance temperature detector arranged in a common or similar space is used as comparison data.
  • FIG. 4 illustrates log data of temperature measurement by another resistance temperature detector provided at the first point of Room 4 on the 18th floor of Building A. That is, FIG. 4 shows the temperature measurement results at different points in the same room (an example of a space in which air conditioning and the like are common) in the same building as that shown in FIG.
  • the first point at the present time, August 1, 2019, the temperature was measured at 28.0 ° C at 10:00, 27.9 ° C at 10:15, and 27.7 ° C at 10:30. doing.
  • the temperature at the second point shown in FIG. 3 is compared with the temperature at the first point at any time.
  • the second point is + 0.1 ° C. compared to the first point, and is within the range of the reference value (for example, plus or minus 1.5 degrees or plus or minus 2 degrees).
  • the reference value for example, plus or minus 1.5 degrees or plus or minus 2 degrees.
  • the second point is + 7.6 ° C. compared to the first point and exceeds the reference value.
  • the second point is + 7.5 ° C. as compared with the first point and also exceeds the reference value. If the condition for detecting deterioration or abnormality is that the reference value is exceeded twice in a row, the PC 50 determines that the deterioration or abnormality has occurred at 10:30.
  • the PC50 detects deterioration or abnormality, it notifies the maintenance manager by displaying a screen indicating that deterioration or abnormality has been detected for the second point of Room 4 on the 18th floor of Building A.
  • the deterioration or abnormality In the detection of deterioration or abnormality, if the temperature exceeds the reference value only at a certain point, the deterioration or abnormality related to that point is detected. In the example of the temperature measuring system 10 of FIG. 1, it is determined that the electric wires 30, 32, the temperature measuring sensor unit 40, or the contacts thereof have deteriorated or become abnormal. On the other hand, when the temperature exceeds the reference value at a plurality of points, it is determined that the device in the controller 20 common to these points has deteriorated or has an abnormality.
  • the measurement results of different resistance temperature detectors at different points in the same room are compared with the measurement results of another resistance temperature detector in a similar space having the same purpose. It is also possible. For example, when the resistance temperature detector 44 is installed in an office space, it may be compared with the measurement results in another office space on the same floor or different floors.
  • the setting of the reference value, the detection condition of the occurrence of deterioration or abnormality, etc. can be changed in various ways.
  • the reference value it is conceivable to analyze the past log data that is assumed to be normal and set it to a value that does not include the temperature variation in the normal case.
  • a condition for detecting deterioration or abnormality an example may be given in which the deterioration or abnormality is immediately determined when the deterioration or abnormality is exceeded once, not when the deterioration or abnormality is exceeded twice in succession.
  • FIG. 5 is a diagram showing a schematic configuration of the temperature measuring system 70 according to the modified example.
  • FIG. 5 is a diagram corresponding to FIG. 1, and the same reference numerals are given to the same or corresponding configurations as those of the temperature measuring system 10 shown in FIG. 1, and the description thereof will be omitted or simplified.
  • the temperature measuring sensor unit 80 is attached instead of the temperature measuring sensor unit 40 in the temperature measuring system 10.
  • a resistance temperature detector 84 having an electric resistance Rpt4 and a bypass electric wire 82 having an electric resistance Rb are connected in parallel.
  • the temperature measurement sensor unit 80 is provided with a switch 86 having an electric resistance Rs and controlling the connection or disconnection of the bypass electric wire 82.
  • the controller 20 measures the voltage and the electric resistance of the circuit in the closed state and the open state of the switch 86.
  • the electric resistance R6 is obtained by dividing the measured value of the voltmeter by the current.
  • the electrical resistance R7 is obtained by dividing the measured value of the voltmeter by the current.
  • Equation 13 Rpt4 / (1+ (Rb + Rs) / Rpt4)
  • Equation 14 has the same format as Equation 10 in the temperature measurement system 10.
  • the electrical resistance Rb of the bypass wire 82 is small. Therefore, if the electric resistance Rs of the switch 86 can be reduced, the temperature measurement sensor unit 80 in the temperature measurement system 70 can be used instead of the temperature measurement sensor unit 40 in the temperature measurement system 10.
  • the switch 86 for example, a switch similar to the switch 46a shown in FIG. 2 or a switch using a relay can be used.
  • the resistance temperature detector 84 not only Pt1000 or Pt3000 can be used, but also Pt100, which is currently used as a standard, can be used.
  • the temperature measurement systems 10 and 70 shown above can be newly introduced in a new building or the like. Since the temperature measuring systems 10 and 70 are of the two-wire system, the number of electric wires can be reduced as compared with the three-wire temperature measuring system 110 described above with reference to FIG. Further, the temperature measuring systems 10 and 70 can be introduced by replacing the two-wire temperature measuring system 130 shown in FIG. 7. In this case, a configuration change method including a step of replacing the resistance temperature detector 138 of the temperature measuring system 130 with the temperature measuring sensor unit 40 or the temperature measuring sensor unit 80 and a step of replacing the controller 132 with the controller 20 is performed. Then, the temperature measurement systems 10 and 70 can be used. Further, by detecting deterioration or abnormality by the PC 50, maintenance management of the temperature measuring system 10 can be performed at an appropriate timing.
  • the controller 20 calculates the temperature based on the measurement of the voltage and the electric resistance, and the PC 50 deteriorates or abnormalizes the temperature measuring systems 10 and 70 based on the calculated temperature.
  • the function of the PC 50 may be provided to the controller 20. Further, the function of the PC 50 may be performed by a computer at a remote location.
  • resistance temperature system 10 resistance temperature system, 20 controller, 22 terminals, 24 terminals, 30, 32 wires, 30a, 32a terminals, 40 resistance temperature sensor units, 42 bypass wires, 44 resistance temperature detectors, 46, 46a switches, 60 batteries, 62 crystals Oscillation circuit, 64 bipolar transistor, 70 temperature measurement system, 80 resistance temperature sensor unit, 82 bypass wire, 84 resistance temperature detector, 86 switch, 110 resistance temperature system, 112 controller, 114, 116, 118 wire, 120 resistance temperature detector Body, 122, 124 arrow, 130 resistance temperature system, 132 controller, 134, 136 wire, 138 resistance temperature detector, 140 arrow.

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Abstract

L'invention concerne un système de mesure de température 10 qui possède deux bornes 22, 24 et mesure une résistance électrique par la conduction d'électricité entre les bornes 22, 24. Une extrémité de chacun de fils électriques 30, 32 est connectée d'une manière respective aux deux bornes 22, 24. Une résistance de mesure de température 44 et un fil électrique de dérivation 42 sont connectés en parallèle aux autres extrémités des fils électriques 30, 32, la résistance de mesure de température 44 et le fil électrique de dérivation 42 étant sélectivement commutés par un commutateur 46. La résistance électrique de la résistance de mesure de température, ou une température correspondante, est calculée sur la base de la résistance électrique mesurée lorsque la conduction d'électricité vers le fil électrique de dérivation est passante et la résistance électrique mesurée lorsque cette conduction d'électricité est bloquée.
PCT/JP2019/029964 2019-07-31 2019-07-31 Système de mesure de température, unité de capteur de mesure de température et procédé de changement de configuration de système de mesure de température WO2021019712A1 (fr)

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PCT/JP2019/029964 WO2021019712A1 (fr) 2019-07-31 2019-07-31 Système de mesure de température, unité de capteur de mesure de température et procédé de changement de configuration de système de mesure de température
JP2019572697A JP6756935B1 (ja) 2019-07-31 2019-07-31 測温システム、測温センサユニット及び測温システムの構成変更方法
CN201980098417.7A CN114144645A (zh) 2019-07-31 2019-07-31 测温系统、测温传感器单元以及测温系统的结构变更方法

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