JP2009257953A - Management device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for facilitating maintenance or management of an object that degrades with the passage of time. <P>SOLUTION: A management device for managing the object having quality varying with time comprises: a measuring means for measuring the environmental variable for varying the rate of quality variation of a substance; and a calculating means for calculating the effective elapsed time, which is a time reflecting the degree of progression of the variations in the effective quality, based on the environmental variable measured by the measuring means and the actual elapsed time which actually passes, and an outputting means for outputting the effective elapsed time calculated by the calculating means. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique for maintaining or managing an object whose quality changes with time.

  An object whose quality changes with time (food, storage battery, medicine, etc.) may deteriorate earlier than the initially expected life depending on the temperature environment during storage or use. For this reason, in the management of foods and chemicals, business operators have noticeably deteriorated the quality of foods, etc., due to uncertain temperature management during transportation or unexpected temperature changes due to power outages or failure of air conditioning equipment. It takes risks and life management becomes important. Further, in the case of a backup storage battery for power equipment, it is a matter of course that life management is important because it is a power source when commercial power is interrupted.

In order to manage the life of storage batteries for power facilities, the storage battery management system described in Non-Patent Document 1 has a sensor and a monitoring center attached to each of a plurality of storage batteries, and the internal resistance of the storage battery obtained from these sensors. The monitoring center monitors the state of quality change of the storage battery based on the measured values such as voltage and voltage.
(FB Technical News, No. 58, pp.44, November 2002), [Search Date March 20, 2008], Internet <URL: http://www.furukawadenchi.co.jp/research/ tech / pdf / fbtn58_209.pdf>

  However, the storage battery management system described in Non-Patent Document 1 requires a high-performance information processing apparatus for analyzing quality change separately in addition to the sensor for measurement, and is an overlying system.

  Also, when judging the degree of quality change of foods and medicines, it is necessary to perform complex measurements and measurements with special equipment, and the judgment method requires detailed measurement data for each individual to be measured There are many.

  As a result, there is a problem that the business operator cannot easily check the degree of quality change of an object whose quality changes with time, such as a storage battery, and it is difficult to manage the object to be measured.

  An object of the present invention is to provide a technique that facilitates maintenance or management of an object whose quality changes with time.

  In order to achieve the above object, the management apparatus of the present invention is a management apparatus for managing an object whose quality changes with time, and measuring means for measuring an environmental variable that changes the speed of quality change of the substance. Based on the environmental variables measured by the measuring means and the actual elapsed time that is actually elapsed time, the effective elapsed time that is the time reflecting the degree of progress of the effective quality change is calculated. Calculating means for outputting, and output means for outputting the effective elapsed time calculated by the calculating means.

  According to the present invention, the management device calculates and outputs the effective elapsed time by obtaining the acceleration coefficient based on the measured environmental variable, and multiplying the average value of the acceleration coefficient by the accumulated value of the elapsed time. Since this effective elapsed time is a time reflecting the deterioration rate that changes depending on the environment variable, the user of the management device can estimate the remaining life of the object, and the maintenance and management of the object are easy. Become.

(First embodiment)
A first embodiment for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of the management apparatus 1 of this embodiment. The management apparatus 1 is an apparatus for managing an object whose quality changes with time (hereinafter referred to as “measurement object”). The management device 1 is installed around the object to be measured. In this embodiment, the device under test is a lead storage battery for backup of power equipment. And the change (deterioration) of the quality of the lead storage battery is not deterioration due to charging / discharging, but deterioration in an untreated state. Referring to FIG. 1, the management device 1 includes a measurement unit 11, a control unit 13, and an output unit 15.

  The object to be measured may be other than a lead storage battery as long as the quality of the object changes with time, such as food or medicine.

  The measuring unit 11 includes a time measuring unit 111 and a temperature sensor 113. The timer 111 measures the time that has elapsed since the measurement was started in accordance with the control of the controller 13. The temperature sensor 113 measures the surface temperature of the lead storage battery every time a predetermined set time (for example, 1 minute) is measured by the time measuring unit 111 according to the control of the control unit 13, and information indicating the measured value is displayed on the control unit 13. Send to. The surface temperature of lead-acid batteries is measured because the rate of deterioration depends strongly on the temperature of the lead-acid battery in lead-acid batteries that are used in backup applications where the full charge state is maintained by float charging and the number of discharge cycles is small. is there. And the deterioration rate of the lead acid battery based on a chemical reaction can be quantitatively calculated | required by measuring temperature and using the Arrhenius equation which shows the relationship between a chemical reaction and temperature.

  In the present embodiment, the measuring unit 11 measures the surface temperature of the lead storage battery that is actually operated. However, in the case of a lead storage battery stored in a warehouse or the like, the temperature of the atmosphere is used as an environmental variable. You may measure and manage. The measuring unit 11 may measure the temperature inside the object to be measured, such as the temperature of the electrolyte solution of the lead storage battery. Further, parameters other than temperature may be measured as long as they are environmental variables that change the deterioration rate of the quality of the object to be measured. For example, environmental variables that affect the quality of food include oxygen and enzyme concentrations, pH, water activity, and electromagnetic field strength. In addition, environmental variables that affect the quality of chemicals include the concentration of nitrogen and sulfur compounds in the atmosphere and the intensity of ultraviolet rays. The measuring unit 11 measures these environmental variables according to the type of the object to be measured. Moreover, the measurement part 11 may measure not only any one environmental variable but several environmental variables.

  Further, the set time is not limited to 1 minute, and may be another value such as 30 seconds or 10 minutes. This set time is stored in advance in a memory (not shown) of the management apparatus 1 or input by the user. Furthermore, in the present embodiment, the set time is a constant value, but the management device 1 may automatically change the set time and measure the environment variable. For example, when the temperature falls within a predetermined range, or when the remaining life falls below a predetermined value, the management device 1 automatically reduces the set time and measures the environmental variable at shorter intervals. It can also be configured.

  The control unit 13 controls the entire management apparatus 1. The control unit 13 includes setting information 131 and measurement information 133.

  The setting information 131 will be described with reference to FIG. The setting information 131 is information for setting the operation of the management apparatus 1. FIG. 2 is a diagram showing the configuration of the setting information 131. As shown in FIG. Referring to the figure, the setting information 131 includes information indicating an acceleration coefficient derivation function 1311, a deterioration progress start temperature 1312, a statistic 1313, an interval period 1314, an expected life 1315, an alarm output 1316, and an alarm threshold 1317. These set values are stored in advance in a memory (not shown) or the like of the management device 1 or input by the user before the start of temperature measurement.

  The acceleration coefficient derivation function 1311 is a relational expression indicating the relationship between the acceleration coefficient and the temperature. The acceleration coefficient is a ratio of the deterioration rate of the measured object at a certain temperature to the reference deterioration rate (hereinafter referred to as “reference deterioration rate”). The deterioration progress start temperature 1312 is the minimum temperature among the temperatures where the deterioration rate is equal to or higher than the reference deterioration rate, that is, the acceleration coefficient exceeds 1.

  The acceleration coefficient derivation function 1311 is obtained based on, for example, the Arrhenius equation shown in the following equation (1).

k = Aexp (−Ea / RT) (1)
Here, k is a chemical reaction constant (acceleration coefficient), A is a frequency factor (constant independent of temperature), Ea is activation energy, R is a gas constant (8.314 J / mol · K), and T is temperature (absolute) Temperature K). According to the equation (1), when the object to be measured is a lead storage battery, the battery life is halved every time the temperature of 10 ° C. rises above a certain temperature (10 ° C. half law). The minimum temperature to which this 10 ° C. half law can be applied is used as the deterioration rate start temperature 1312 (for example, 26 ° C.).

  Then, the following formula (2) obtained by substituting various constants into the formula (1) and transforming is used as the acceleration coefficient derivation function 1311.

f (t) = 2 ^{(t-25) / 10} (2)
Here, f is an acceleration coefficient, and t is a temperature (° C.). The control unit 13 acquires 1 as an acceleration coefficient f when t is a temperature lower than the deterioration progress start temperature (26 ° C.), and substitutes t into the expression (2) when t is 26 ° C. or more. Is calculated.

  The statistic 1313 indicates the type of temperature statistic input to the acceleration coefficient derivation function 1311 in order to obtain the acceleration coefficient. In the present embodiment, “average temperature” or “maximum temperature” is set as the statistic 1313. When “average temperature” is set, the control unit 13 inputs an average value (average temperature) of a plurality of temperatures measured during the interval period 1314 into the equation (2). When “maximum temperature” is set, a maximum value (maximum temperature) among a plurality of temperatures measured within the interval period 1314 is input to the equation (2).

  The interval period 1314 indicates the time interval for obtaining the acceleration coefficient. The interval period 1314 is a value equal to or greater than the interval (set time) at which the measurement unit 11 measures temperature. For example, when the set time is 1 minute, the interval period 1314 is 0.5 hours.

  With reference to FIG. 3, the statistic 1313 and the interval period 1314 will be described in detail. The figure shows the operation of the measurement unit 11 and the control unit 13. Referring to the figure, the measuring unit 11 measures the temperature (instantaneous temperature) every time one minute (set time) elapses. The control unit 13 obtains an average value (average temperature) and a maximum value (maximum temperature) of measured values measured in the interval period 1314 every time the interval period (0.5 hours) 1314 elapses. When the statistic 1313 is set to “average temperature”, the control unit 13 calculates the acceleration coefficient by substituting the average temperature into the equation (2). When the statistic 1313 is set to “maximum temperature”, the control unit 13 calculates the acceleration coefficient by substituting the maximum temperature into the equation (2).

  In the present embodiment, the control unit 13 uses an average value or a maximum value as a statistic, but may use a statistic other than the average value and the maximum value. For example, the control unit 13 may use a mode value, a median value, or the like of measurement values in the interval period 1314.

  Returning to FIG. 2, the expected life 1315 is the life of the lead storage value when left at a temperature of an acceleration coefficient of 1 or less at the time when temperature measurement is started.

  The alarm output 1316 is managed when the estimated remaining life time of the lead-acid battery (hereinafter referred to as “remaining life time”) becomes equal to or less than a predetermined threshold when the temperature is last measured by the measurement unit 11. It is set whether or not the device 1 outputs an alarm. “On” is set when an alarm is output, and “Off” is set when no alarm is output.

  The alarm threshold 1317 is a threshold for determining whether or not the management apparatus 1 outputs an alarm.

  Referring to FIG. 2, for example, equation (2) is used as the acceleration derivation function 1311, “26 ° C.” as the deterioration start temperature 1312, “average temperature” as the statistic 1313, “0.5 hours” as the interval period 1314, expectation “87,600 hours” (10 years) is set as the lifetime 1315, “ON” is set as the alarm output 1316, and “8,760 hours” (1 year) is set as the alarm threshold 1317.

  The measurement information 133 will be described with reference to FIG. The measurement information 133 is information indicating a value acquired by the control unit 13 based on the measurement value measured by the measurement unit 13 and the setting information 131. Referring to the figure, measurement information 133 includes information indicating actual elapsed time 1331, average temperature 1332, acceleration coefficient 1333, average acceleration coefficient 1334, effective elapsed time 1335, life progress 1336, and remaining life time 1337.

  The actual elapsed time 1331 is the actual time that has elapsed from when the measurement unit 11 starts measurement until the control unit 13 acquires the acceleration coefficient, and specifically, is an accumulated value of the interval period 1314. The average temperature 1332 is an average value of temperatures measured by the measurement unit 13 within the interval period 1314. The acceleration coefficient 1333 is a value (f: acceleration coefficient) calculated by substituting the average temperature 1332 (t) into the equation (2). The average acceleration coefficient 1334 is an average value of the calculated acceleration coefficients 1333.

  The effective elapsed time 1335 is a time reflecting the degree of progress of quality deterioration of the object to be measured, and can be obtained by the following equation (3).

(Effective elapsed time) = (Effective elapsed time calculated last time) + (Interval period) × (Acceleration coefficient) (3)
The effective elapsed time may be calculated by an expression other than the expression (3). For example, a value obtained by multiplying the actual elapsed time 1335 by the average acceleration coefficient 1334 may be calculated as the effective elapsed time 1335.

  As the temperature rises, the deterioration rate of the lead-acid battery increases, and the life of the lead-acid battery decreases beyond the actual elapsed time. The effective elapsed time 1335 is an elapsed time reflecting the degree of deterioration due to such a temperature rise. The user of the management device 1 can estimate how long the remaining life of the lead storage battery is by checking the effective elapsed time 1335. As a result, even when the deterioration rate changes due to a temperature change, maintenance and management of the object to be measured are facilitated.

  Life progress degree 1336 shows the degree of the reduction | decrease in the time which a lead acid battery can be used, and can be calculated | required by following (4) Formula.

(Life progress degree) = (Effective elapsed time) / (Expected life) (4)
The remaining life time 1337 is the remaining estimated life time of the lead-acid battery, and can be obtained by equation (5).

(Remaining life time) = (Expected life) / (Average acceleration coefficient) − (Actual elapsed time) (5)
For example, when the actual elapsed time 1331 is “64, 240 hours” (64, 240 hours), a case where “37.1” is calculated as the average temperature 1332 is considered. At this time, the control unit 13 calculates “1.1” as the acceleration coefficient 1333 by substituting 37.1 ° C. into the equation (2). Then, the control unit 13 calculates the average value “1.2” of the acceleration coefficients calculated so far as the average acceleration coefficient 1334.

  Subsequently, the control unit 13 substitutes the previously calculated effective elapsed time (77,087.5 hours), the interval period (0.5 hours), and the acceleration coefficient (1.1) calculated this time into the equation (2). Thus, “77,088 hours” (77,088 hours) is calculated as the effective elapsed time 1335. Further, since “87,600 hours” (87,600 hours) is set as the expected life 1315, the control unit 13 sets the set value (87,600 hours) and the actual elapsed time (64,340 hours) to ( By substituting into the equation (4), “0.88” is calculated as the life progression degree 1336. Then, the control unit 13 substitutes the expected life (87,600 hours), the average acceleration coefficient (1.2), and the actual elapsed time (64,340 hours) into the equation (5), thereby remaining life time 1337. As a result, “8,760 hours” (8,760 hours) is calculated.

  Thus, when the average acceleration coefficient (1.2) is larger than 1, the deterioration rate increases as the temperature rises. Therefore, the effective elapsed time (64,340 hours) is more effective than the actual elapsed time (64,340 hours). 77,088 hours) increases. As a result, the remaining life time of the lead-acid battery is a value (23,260 hours) obtained by subtracting the actual elapsed time (64,340 hours) from the expected life (87,600 hours) when the acceleration coefficient is 1 or less. There is a lower value (8,760 hours) than that value.

  Returning to FIG. 1, the output unit 15 outputs information indicating the temperature (current temperature) last measured by the measurement unit 11, measurement information 133 acquired by the control unit 13, and information indicating an alarm. The output unit 15 includes a display unit 151. The display unit 151 is a display device such as an LCD (Liquid Crystal Display) or an organic EL (Electro Luminescence). The display unit 151 displays the temperature (current temperature) last measured by the measurement unit 11 and the actual elapsed time 1331, the effective elapsed time 1335, the lifetime progress 1336, and the remaining lifetime 1337 acquired by the control unit 13. Further, the output unit 15 outputs information indicating an alarm when the remaining life time 1337 becomes equal to or less than the alarm threshold 1317 according to the control of the control unit 13. For example, the output unit 15 causes the display unit 151 to display a request for replacement of the lead storage battery as an alarm.

  In the present embodiment, the control unit 13 is configured to display the current temperature, the content indicated by the measurement information 133, and the alarm on the display unit 15, but the current temperature and actual elapsed time 1331 other than the effective elapsed time 1335 are displayed. The life progression degree 1336 and the remaining life time 1337 are not necessarily displayed.

  In the present embodiment, the output unit 15 is configured to display the effective elapsed time 1335 and the like indicated by the measurement information 133 on the display unit 151, but information indicating the current temperature and the like may be output by other methods. For example, the output unit 15 includes a printer, and can cause the printer to print the contents indicated by the current temperature and the measurement information 133. Further, the output unit 15 includes a storage device such as a flash memory, and can store information indicating the current temperature and measurement information 133 in the storage device.

  The output unit 15 may output an alarm by other methods. For example, the output unit 15 includes a sound output device such as a buzzer and can output a sound as an alarm, or can include a lamp and can turn on the lamp as an alarm. The output unit 15 can also output an alarm by combining a plurality of methods.

  FIG. 5 is a perspective view of the management apparatus 1. Referring to FIG. 1, the management device 1 has a small casing, a clock unit 111 and a control unit 13 are built in the casing, and a display unit 151 is provided on one surface (front) of the casing. And the management apparatus 1 has the temperature sensor 113 in the surface (back surface) on the opposite side to the surface which has the display part 151. FIG.

  The management apparatus 1 may have a configuration in which the temperature sensor 113 is provided on a surface other than the back surface of the housing, or a configuration in which the temperature sensor 113 is provided outside the housing and the housing and the temperature sensor 113 are connected by a cable. It is good.

  Next, the operation of the management apparatus 1 will be described with reference to FIGS. FIG. 6 is a flowchart showing management processing executed by the management apparatus 1. The management process starts when the management apparatus 1 is turned on or when a predetermined application is executed. Referring to the figure, the measurement unit 11 executes a measurement process (step S1), and the control unit 13 executes a calculation process (step S3). And the output part 15 performs a display process (step S5).

  FIG. 7 is a flowchart showing a measurement process executed by the measurement unit 11. The measurement process is a process of measuring the surface temperature (t) of the lead storage battery every set time (1 minute). Referring to the figure, the time measuring unit 111 measures the time that has elapsed since the measurement was started, and the measuring unit 113 measured the set time (1 minute) from the time when the temperature was measured at the start of measurement or the previous time. It is determined whether or not the time is counted by 111 (step S11). If the set time has been counted (step S11: YES), the measuring unit 11 causes the temperature sensor 113 to measure the surface temperature of the lead storage battery (step S13). When the set time is not counted (step S11: NO) or after step S13, the measurement unit 11 ends the measurement process.

  FIG. 8 is a flowchart showing calculation processing executed by the control unit 13. The calculation process is a process in which the control unit 13 calculates the effective elapsed time 1335, the life progression degree 1336, and the remaining life time 1337 for each interval period 1314 and stores them in the measurement information 133. Referring to the figure, the control unit 13 determines whether or not the interval period 1314 has elapsed since the measurement was started or the previous effective elapsed time 1335 was calculated (step S31). When the interval period 1314 has elapsed (step S31: YES), the control unit 13 obtains an average value or a maximum value of the temperatures measured by the measurement unit 11 within the interval period 1314. The control unit 13 calculates the acceleration coefficient 1333 by substituting the obtained average value or maximum value into the equation (2), and stores it in the measurement information 133 (step S33). And the control part 13 calculates the average value of the acceleration coefficient 1333 calculated by step S31, and calculates the effective elapsed time 1335 by substituting this average value (1334) and the actual elapsed time 1331 into (3) Formula. And stored in the measurement information 133 (step S35). The control unit 13 calculates the life progress 1336 by substituting the effective elapsed time 1335 and the expected life 1315 calculated in step S33 into the equation (4), and stores them in the measurement information 133 (step S37). The control unit 13 calculates the remaining life time 1337 by substituting the expected life 1315, the average acceleration coefficient 1334, and the actual elapsed time 1331 into the equation (5), and stores it in the measurement information 133 (step S39).

  Subsequently, the control unit 13 determines whether or not the alarm output 1316 is set to “ON” and the remaining lifetime 1337 is equal to or less than the alarm threshold 1317 (step S41). When the alarm output 1316 is set to “ON” and the remaining lifetime 1337 is equal to or less than the alarm threshold 1317 (step S41: YES), the control unit 13 turns on the alarm flag (step S43). . The alarm flag is information indicating whether or not the output unit 15 outputs an alarm. The output unit 15 outputs an alarm when the alarm flag is ON. When the alarm output 1316 is set to “OFF”, or the remaining life time 1337 is not less than or equal to the alarm threshold 1317 (step S41: NO), after step S39, or when the interval period 1314 has not elapsed ( Step S31: NO), the control unit 13 ends the calculation process.

  FIG. 9 is a flowchart showing display processing executed by the output unit 15. The display process is a process for displaying the current temperature, the content indicated by the measurement information 133, and an alarm. Referring to the figure, the display unit 151 displays the surface temperature (current temperature) of the lead storage battery last measured by the measurement unit 11 (step S51). The display unit 151 reads and displays information indicating the actual elapsed time 1331 and the effective elapsed time 1335 from the measurement information 133 after a predetermined time has elapsed or according to a user operation (step S53). The display unit 151 reads and displays information indicating the life progression degree 1336 from the measurement information 133 after a predetermined time has elapsed or according to a user operation (step S55).

  Subsequently, the display unit 151 determines whether or not the alarm flag is ON (step S57). When the alarm flag is ON (step S57: YES), the display unit 151 reads and displays information indicating the remaining life time 1337 from the measurement information 133, and displays an alarm that the lead storage battery needs to be replaced (step). S59). If the alarm flag is not ON (step S57: NO), or after step S9, the display unit 151 ends the display process.

  Next, an example of the operation result of the management apparatus 1 will be described with reference to FIGS. 10 (a) and 10 (b) and FIGS. 11 (a) to 11 (c). FIGS. 10A and 10B and FIGS. 11A to 11C are diagrams illustrating an example of a screen displayed by the display unit 151.

  The measurement unit 11 measures the temperature every predetermined time (step S1), and the control unit 13 determines the effective elapsed time 1335, the life progress 1336, based on the temperature measured by the measurement unit 11 for each interval period 1314. The remaining life time 1337 is calculated and stored in the measurement information 133 (step S3).

  As shown in FIG. 10A, the display unit 151 displays the current temperature (° C.) measured by the measurement unit 11 (step S51). For example, in FIG. 5A, if 35 ° C. is finally measured, the display unit 151 displays “35 ° C.” (151A) on the screen. The display unit 151 reads and displays information indicating the actual elapsed time 1331 and the effective elapsed time 1335 from the measurement information 133 after a predetermined time has elapsed or according to a user operation, as shown in FIG. (Step S53). For example, in FIG. 6B, the actual elapsed time from the measurement start time is three and a half years, and six and a half years is calculated as the effective elapsed time. Therefore, the display unit 151 displays “3. “5 year” (151B) and “6.5 year” (151C) are displayed as the effective elapsed time.

  Subsequently, the display unit 151 reads and displays information indicating the life progression degree 1336 from the measurement information 133 as illustrated in FIG. 11A after a predetermined time has elapsed or according to a user operation ( Step S55). For example, in FIG. 5A, the display unit 151 indicates the life progress degree with the color of 20 bars (151D). Since 0.65 is calculated as the life progression degree 1336, the display unit 151 displays 20 bars in which 13 bars are black and 7 bars are white. And if an alarm flag is ON (step S57: YES), as shown in FIG.11 (b), the display part 151 will use the message (151E) which requests | requires replacement | exchange of a lead storage battery as an alarm, and measurement information 133 from it. Information (151F) indicating the read remaining life time 1337 is displayed (step S59). For example, in FIG. 7B, the display unit 151 calculates 0.4 years as the remaining life time, and therefore, “0.4 year” as the life progress degree 1336 together with the “replacement required” message (151E). (151F) is displayed.

  Note that the display methods shown in FIGS. 10A and 10B and FIGS. 11A and 11B are examples, and the current temperature and the like may be displayed by other display methods such as graphs and tables. Of course.

  In addition, when managing the deterioration state of an object to be measured that is particularly important for temperature management, such as food and medicine, the control unit 13 obtains the highest temperature among the temperatures measured by the measurement unit 11, and this maximum temperature is The output unit 15 may output an alarm when a predetermined threshold is exceeded. For example, raw ham and roast beef are preferably stored at 4 ° C. or lower. Therefore, when a temperature exceeding 4 ° C. is measured, the display unit 151 displays an alarm “Storage temperature is too high” (151G) as the maximum temperature as shown in FIG. “5 ° C.” (151H) is displayed.

  In the present embodiment, the management apparatus 1 is used for managing the measured object whose quality deteriorates with the passage of time. However, the management apparatus 1 is also used for managing the measured object whose quality improves with the passage of time. Can be used. For example, some foods such as fermented foods are aged over time, and the quality is improved. For this reason, food management becomes easy by calculating the effective elapsed time reflecting the progress of aging.

  Part or all of the flowcharts shown in FIGS. 6 to 9 can also be realized by executing a computer program.

  As described above, according to the present embodiment, the management device 1 obtains the acceleration coefficient 1333 based on the measured temperature (t), and multiplies the average acceleration coefficient 1334 by the actual elapsed time 1331 to obtain the effective elapsed time. The time 1335 is calculated and displayed. Since the effective elapsed time 1335 is a time reflecting a deterioration rate that changes depending on the temperature, the user of the management device 1 can estimate the remaining life of the lead storage battery, and maintain and manage the lead storage battery. Becomes easy.

  The lead storage battery degradation determination method, as shown in Non-Patent Document 1, is very large and costly if it is attempted to determine degradation strictly. On the other hand, since the management apparatus 1 of the present invention can determine deterioration at an extremely low cost, it can be used for small-scale facilities that have been difficult to introduce. In the cycle application, the deterioration modes of the storage battery are various and complicated. However, in the backup application, the float charge is performed and the number of discharge cycles is small, so that the management based on the temperature alone is sufficiently practical.

  Further, the management device 1 can accurately calculate the effective elapsed time 1335 by setting the temperature statistic in the interval period 1314 as a value to be substituted into the equation (2).

  Since the management apparatus 1 displays the remaining life time 1337, the user can confirm the remaining usage period, so that the object to be measured can be easily stored and managed.

  Since the management apparatus 1 outputs an alarm when the remaining life time 1337 becomes equal to or less than the alarm threshold 1317, the user can know the replacement time of the lead storage battery and the storage and management of the measured object is further facilitated. It becomes.

And since the management apparatus 1 displays the maximum temperature, the temperature management of the object to be measured becomes easy.
(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIG. In the first embodiment, the control unit 13 calculates the acceleration coefficient 1333 by the expression (2), but can also acquire the acceleration coefficient 1333 by a method other than the calculation by the relational expression. The management apparatus according to the second embodiment differs from the management apparatus according to the first embodiment in that an acceleration coefficient is acquired using a table.

  The configuration of the management device according to the present embodiment is the same as the configuration of the management device according to the first embodiment, except that the control unit 13 includes the table illustrated in FIG. This table stores temperature and acceleration coefficient in association with each other. In step S <b> 31, the control unit 13 obtains the acceleration coefficient 1333 by reading the acceleration coefficient corresponding to the temperature statistic measured by the measurement unit 13 from the table.

According to this embodiment, since the acceleration coefficient 1333 is acquired using a table, the effective elapsed time 1335 can be accurately acquired even if the temperature dependence characteristic of the acceleration coefficient is complicated.
(Third embodiment)
A third embodiment of the present invention will be described with reference to FIG. In the first embodiment, the management device 1 itself displays the current temperature and the like, but other devices can also display the current temperature and the like acquired by the management device 1. FIG. 2 is a block diagram showing the configuration of the management device 1a and the monitoring center 2 of this embodiment. Referring to FIG. 2, the management device 1a and the monitoring center 2 are connected to a network N. The configuration of the management device 1a is the same as that of the management device 1 of the first embodiment except that the output unit 15 further includes a transmission unit 153. The configuration of the third embodiment is different from the configuration of the first embodiment in that it is connected to another device (2) through a network.

  The transmission unit 153 of the management device 1a transmits information indicating the current temperature, measurement information 133, and information indicating an alarm to the monitoring center 2 through the network N.

  The monitoring center 2 is a device that remotely monitors the deterioration state of the object to be measured. The monitoring center 2 includes a receiving unit 21, a control unit 23, and a display unit 25. The receiving unit 21 receives information indicating the current temperature, measurement information 133, and information indicating an alarm from the management device 1a through the network N. The control unit 23 controls the entire monitoring center 2. The display unit 25 displays the current temperature, the content indicated by the measurement information 133, and an alarm according to the control of the control unit 23.

  In addition, the management apparatus 1a can also transmit only some of the information which shows the information which shows present temperature, the measurement information 133, and an alarm. Further, the management apparatus 1a may further be configured to receive all or part of the setting information 131 through the network N.

  Further, the management device 1a may transmit information indicating the current temperature or the like to the plurality of monitoring centers 2, and the monitoring device 1a monitors the deterioration states of the plurality of objects to be measured through the plurality of management devices 1a. Also good.

  According to the present embodiment, the management device 1a transmits the current temperature and the like through the network N. Therefore, if the monitoring center 2 displays the current temperature received from the management device 1a, the deterioration state of the object to be measured can be known from a remote location, and maintenance and management of the object to be measured are facilitated.

It is a block diagram which shows the structure of the management apparatus of 1st Embodiment. It is a figure which shows the structure of the setting information of 1st Embodiment. It is a figure for demonstrating operation | movement of the measurement part of 1st Embodiment. It is a figure which shows the structure of the measurement information of 1st Embodiment. It is a perspective view of the management device of a 1st embodiment. It is a flowchart which shows the management process of 1st Embodiment. It is a flowchart which shows the measurement process of 1st Embodiment. It is a flowchart which shows the calculation recording process of 1st Embodiment. It is a flowchart which shows the display process of 1st Embodiment. (A) It is a figure which shows an example of the screen which the display part of 1st Embodiment displays. (B) It is a figure which shows an example of the screen which the display part of 1st Embodiment displays. (A) It is a figure which shows an example of the screen which the display part of 1st Embodiment displays. (B) It is a figure which shows an example of the screen which the display part of 1st Embodiment displays. (C) It is a figure which shows an example of the screen which the display part of a modification displays. It is a figure which shows the table of 2nd Embodiment. It is a block diagram which shows the structure of the management apparatus of 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1a Management apparatus 2 Monitoring center 11 Measurement part 13 Control part 15 Output part 21 Reception part 23 Control part 25 Display part 111 Time measuring part 113 Temperature sensor 131 Setting information 133 Measurement information 151 Display part 153 Transmission part 1311 Acceleration coefficient derivation function 1312 Deterioration start temperature 1313 Statistics 1314 Interval period 1315 Expected life 1316 Alarm output 1317 Alarm threshold 1331 Alarm elapsed time 1331 Actual elapsed time 1332 Average temperature 1333 Acceleration coefficient 1334 Average acceleration coefficient 1335 Effective elapsed time 1336 Life progress degree 1337 Remaining life time S1 to S5, Steps S11 to S13, S31 to S43, S51 to S59

Claims (10)

A management device for managing objects whose quality changes over time,
Measuring means for measuring environmental variables that change the rate of quality change of the substance;
A calculation for calculating an effective elapsed time that is a time reflecting a degree of progress of an effective quality change based on the environmental variable measured by the measuring means and an actual elapsed time that is an actually elapsed time. Means,
Output means for outputting the effective elapsed time calculated by the calculating means;
A management device.   The calculating means acquires a ratio of the speed of the quality change corresponding to the environment variable measured by the measuring means with respect to a reference speed as an acceleration coefficient, and a value obtained by multiplying the acquired acceleration coefficient by the actual elapsed time. The management apparatus according to claim 1, wherein the management apparatus calculates the effective elapsed time.   The management apparatus according to claim 2, wherein the calculation unit calculates the acceleration coefficient using a relational expression indicating a relationship between the acceleration coefficient and the environment variable. The environmental variable is the temperature inside the object, or the surface temperature of the object, or the temperature of the atmosphere,
The management apparatus according to claim 3, wherein the relational expression is an expression based on the Arrhenius rule.   The calculation means further includes a table that stores the acceleration coefficient and the environment variable in association with each other, and reads the acceleration coefficient corresponding to the environment variable measured by the measurement means from the table. The management apparatus as described in.   The calculation means acquires a statistic of the environment variable measured by the measurement means within a predetermined period, and accelerates a ratio of the speed of the quality change corresponding to the acquired statistic with respect to the reference speed. The management apparatus according to claim 2, which is acquired as a coefficient. The calculating means is configured to calculate the effective elapsed time calculated by the measuring means based on the calculated effective elapsed time and the expected life time that is the life of the object at the time when the measurement of the environmental variable is started by the measuring means. Further calculating the remaining lifetime of the object at the time the variable was last measured as the remaining lifetime,
The management apparatus according to claim 1, wherein the output unit further outputs remaining life time information indicating the remaining life time calculated by the calculation unit.   8. The management apparatus according to claim 7, wherein the output unit further outputs alarm information indicating an alarm when the remaining lifetime calculated by the calculation unit is equal to or less than a predetermined threshold value. The management device is connected to a network;
The management apparatus according to claim 1, wherein the output unit transmits information to be output through the network.   10. The management device according to claim 1, wherein the output unit outputs the highest value information indicating the highest value of the environmental variables measured by the measuring unit. 11.

Images