JP6350046B2 - Time measurement value calculation device, time measurement value calculation system, time measurement value collection system, time measurement value calculation method, and program thereof - Google Patents

Description

  The present invention relates to an hourly measurement value calculation device, an hourly measurement value calculation system in which the measurement device and the hourly measurement value calculation device are connected by communication, an hourly measurement value collection system, an hourly measurement value calculation method, and its Regarding the program.

  As a document related to the present invention, in Patent Document 1 below, a highly accurate clock is not required, and in order to facilitate the integration process, a time stamp is added to a measurement value collected by communication and stored in a memory. An analog integration process is proposed in which the measured value is executed asynchronously with the measurement value collection, and the passing amount per time difference from the last collected measurement value is added to the previous integrated value based on the given time stamp. Has been.

  Further, in Patent Document 2 below, the first to first supplements are made so that even if a deficiency occurs in the time series of integrated values, the measurement amount in the deficiency period and the measurement amount at the measurement time immediately after the deficiency period do not cause discomfort. Four methods have been proposed.

JP 2011-208957 A JP 2014-20923 A

  However, in the analog integration process described in Patent Document 1, it is not considered that the measurement value collected by communication is lost, and if the measurement value is lost due to a communication error, the lost information remains as an error. It becomes.

  In addition, the first to fourth methods described in Patent Document 2 are also supplemented by using the difference between the integrated value immediately after the missing period and the accumulated value immediately before the missing period. Error occurs.

  By the way, in recent years, the power consumption of air conditioners has increased in the summer, and electric power companies often call for power saving. When power demand is tight, there is a risk that it will not be possible to follow fluctuations in power consumption. Under such circumstances, a structure (sophisticated power network = smart grid) that reconstructs an existing power network, grasps real-time energy demand using IT technology, and efficiently transmits electricity has been proposed. In order to realize this smart grid, it is necessary to grasp energy demand in real time.

  In order to grasp energy demand in real time, it is necessary to calculate a measured value (measured value at the correct time) at a predetermined time (correct time) in synchronization with the host system. The hourly measurement value cannot be calculated.

  Therefore, the present invention provides an hourly measurement value calculation device, an hourly measurement value calculation system capable of calculating a measurement value (hourly measurement value) at a predetermined time (hourly) synchronized with a host system, It is an object to provide an hourly measurement value collection system, an hourly measurement value calculation method, and a program thereof.

  The hourly measured value calculation device according to the first aspect of the present invention calculates the time difference between the current input time and the previous time input of the integrated data every time integrated data obtained by integrating the instantaneous values of a predetermined physical quantity for a certain period is input. , A measurement value (hereinafter referred to as “time measurement value”) at a predetermined time (hereinafter referred to as “hourly time”) is calculated, and the current input time and the previous time input time are calculated. The hourly measured value for each number of times is calculated by a complementary formula corresponding to the number of times for the hour existing between and.

  The hourly measurement value calculation system of the second aspect is a hourly measurement value calculation system including a measurement device and an hourly measurement value calculation device, and the measurement device measures an instantaneous value of a predetermined physical quantity. Then, the measured instantaneous value is integrated for a certain period to generate and output integrated data, and the hourly measured value calculating device calculates the current value of the integrated data every time the integrated data is input from the measuring device. From the time difference between the input time and the previous input time, a measured value on the hour is calculated, and between the current input and the previous input, the positive value at each number of times is calculated by a supplement formula according to the number of hours on the hour. A time measurement value is calculated.

  An hourly measurement value collection system according to a third aspect is an hourly measurement value collection system including a plurality of measurement devices and an hourly measurement value calculation device, wherein the plurality of measurement devices are measured objects. Measuring the instantaneous value of the predetermined physical quantity, integrating the measured instantaneous value for a certain period, generating integrated data, and outputting the integrated data at a timing that does not overlap each other, and the hourly measured value calculating device includes the plurality of measuring devices Each time the integrated data is input from the time, the current time is the measured value at the normal time, which is the time determined in advance from the time difference between the current input time and the previous input time of the accumulated data. A measurement value is calculated, and between the time of the current input and the time of the previous input, an hourly measurement value at each number of times is calculated for each of the plurality of measurement devices by a complementary formula according to the number of times of the current hour. To calculate the measurement target And butterflies.

  The hourly measured value calculation method of the fourth aspect includes a first process for measuring an instantaneous value of a predetermined physical quantity, a second process for integrating the measured instantaneous value for a certain period to generate integrated data, and the integration Based on the third process for determining the number of times on the hour between the time when the data was input this time and the time when the integrated data was previously input, and based on the determination result in the third process A first time measurement value is calculated based on a time difference between the current input time and the previous input time of the integrated data by a complementary formula according to the number of the current time existing between the input time and the previous input time. 4 treatments.

  The program according to the fifth aspect causes the computer of the measurement device and the hourly measurement value calculation device to execute the first step to the third step.

  According to the hourly measured value calculation apparatus of the present invention, the time difference between the current input time and the previous input time of the accumulated data obtained by integrating the instantaneous values of a predetermined physical quantity for a certain period is present between the current input time and the previous input time. The hourly measured value that is the measured value at the hour of each number of times is calculated by a complementary formula corresponding to the number of times at the hour that is the time when the measured value is calculated in advance. Thus, it is possible to provide an hourly measurement value calculation device, an hourly measurement value calculation system, an hourly measurement value calculation collection system, an hourly measurement value calculation method, and a program thereof capable of calculating an hourly measurement value. Can do. Furthermore, the host system can grasp energy demand in real time.

It is a system configuration figure of an hourly measurement value calculation system of Embodiment 1 of the present invention. It is a figure explaining the whole complementation algorithm of this invention. It is a figure explaining the calculation method of the hourly measured value of the present invention. It is a functional block diagram which shows the structural example of the measuring device 10 in FIG. It is a figure which shows the time change and communication timing of an internal power supply voltage in the clamp type electric power sensor of FIG. It is a flowchart which shows the process of the measuring device of Embodiment 1 of this invention. It is a flowchart which shows the process of the hourly measured value calculation apparatus of Embodiment 1 of this invention. It is a figure explaining the calculation method of the general-time measurement value of this invention. It is a figure explaining operation | movement of the hourly measurement value collection system of Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1

(Configuration of Embodiment 1)
FIG. 1 is a system configuration diagram of the hourly measurement value calculation system according to the first embodiment of the present invention.
The hourly measurement value calculation system of the present invention includes a plurality of measuring devices 10 (= 10-1, 10-2,... 10- (n−1), 10-n) and one or more hourly hours. The measurement value calculation device 20 (= 20,..., 20-k) and the host system 30 are configured.

The measuring device 10 measures an instantaneous value of a predetermined physical quantity, integrates the measured instantaneous value for a certain period, generates and outputs integrated data. As the predetermined physical quantity, a physical quantity that can be accumulated such as current (A), voltage (V), power (W), flow rate (m ³ / s), and the like is assumed. Further, the communication used for the transfer of the accumulated data from the measuring device 10 to the hourly measured value calculating device 20 may be wireless communication or wired communication.

  The hourly measured value calculation device 20 is a device that calculates a measured value (hereinafter referred to as “timely measured value”) at a time (hereinafter referred to as “hourly”) determined as a time for calculating a measured value in advance. is there. The hour may be set every minute, every 10 minutes, every 30 minutes, or every hour. The interval between the hour and the hour is appropriately determined depending on how finely the temporal transition for a given physical needs to be observed and controlled.

  The hourly measurement value calculation device 20 calculates the hourly measurement value from the time difference between the current input time and the previous time input of the integration data every time integration data is input from the measurement device 10. In particular, if there is a correct hour between the current time and the previous time of integration data input, the hourly measured value at each hour will be calculated using a supplementary formula corresponding to the number of current hours. . Note that the time in the hourly measured value calculation device 20 follows the reference clock signal given from the host system 30.

  The host system 30 is a system that monitors and controls predetermined physical quantities such as supply power amount, gas supply amount, and purified water supply amount, for example, and measures the hourly measurement values calculated by the plurality of hourly measurement value calculation devices 20. Changes can be observed for each area. As a result, when the supply of the physical quantity of a certain aria to be managed is tight, it is possible to take measures such as supply restriction that limits the region.

FIG. 2 is a diagram for explaining the entire complement algorithm of the present invention.
In FIG. 2, the horizontal axis is the time of the hourly measured value calculation device, the unit is, for example, (minutes), and the vertical axis is an integrated value such as the consumed electric power measured and integrated by the measuring device 10. It is.

  In FIG. 2, the hourly data and the integrated data of the measuring device are represented by black circles and white circles, respectively. Furthermore, the tip of the arrow extending from the white circle on the horizontal axis represents the time when the integrated data of the measuring device 10 is input to the hourly measured value calculating device 20.

  In the left area of FIG. 2, there is one hour (a numerical value “5” on the horizontal axis) between the previous input integrated data a (n−1) and the current input integrated data a (n). Exists. On the other hand, in the area on the right side of FIG. 2, there are two positive times (numerical value “13” on the horizontal axis) between the previous input integrated data a (n−1) and the current input integrated data a (n). And “14”).

  As can be seen from FIG. 2, there may be one hour on the hour and two between the intervals of the integrated data input from the measuring device 10 to the hourly measured value calculation device 20. In the present invention, paying attention to this, the hourly measured value is calculated separately when there is one hour and when there are two hours.

  FIGS. 3A and 3B are diagrams for explaining the method of calculating the hourly measured value of the present invention. FIG. 3A shows one hour on the hour between the current input and the previous input. FIG. 3B is a diagram illustrating a calculation method when there are two correct hours between the current input and the previous input.

In FIG. 3A, the triangle A ₁ B ₁ C ₁ and the triangle A ₁ B ₂ C ₂ are similar,
Line segment A ₁ B ₂ : Line segment B ₂ C ₂ = Line segment A ₁ B ₁ : Line segment B ₁ C ₁
And if the measured value at the current time is Y,
ΔT: a (n) −a (n−1) = ΔT−Δt: Y−a (n−1)
Then, when solving for Y, the measured value at the current time is
Y = a (n) − (Δt / ΔT) {a (n) −a (n−1)} (1)
It becomes.

In FIG. 3B, the triangle A ₁ B ₁ C ₁ , the triangle A ₁ B ₂ C _2, and the triangle A ₁ B ₀ C ₀ are similar to each other,
Line segment A ₁ B ₀ : Line segment B ₀ C ₀ = Line segment A ₁ B ₂ : Line segment B ₂ C ₂
If the measured value at the previous hour is Y (1),
ΔT: a (n) −a (n−1): ΔT− (TI + Δt): Y (1) −a (n−1)
When Y (1) is solved, the measured value Y (1) at the previous hour is
Y (1) = a (n) − {(Δt + TI) / ΔT} × {a (n) −a (n−1)}
... (2)
It becomes.

(Operation of Embodiment 1)
Regarding the operation of the embodiment of the invention, for specific application examples, (I) communication timing in a representative example, (II) processing of the measuring device 10, and (III) processing of the hourly measured value calculating device 20 And (IV) the generalized method for calculating the hourly measurement value will be described separately.

(I) Communication Timing in Representative Example FIG. 4 is a functional configuration diagram illustrating a configuration example of the measurement device 10 and the hourly measurement value calculation device 20 in FIG.

  The example of the measuring apparatus 10 shown in FIG. 4 is a clamp-type power sensor, which obtains weak power from currents I1 and I2 supplied to a load from a power supply source and outputs a direct current (DC) voltage. A DC / DC converter (hereinafter referred to as “DC / DC”) 12 that converts a DC voltage into a predetermined DC voltage and outputs it, and an I / V conversion that detects currents I1 and I2 and performs current / voltage conversion. 13, a central processing unit CPU (Central Processing Unit) 14 that controls the entire measuring device 10, and generates integrated data, and wireless that transmits integrated data and the like to the hourly measured value calculating device 20 by wireless communication. A unit 15 and an antenna 16 that radiates into the electromagnetic wave space are provided. A large capacity voltage holding capacitor (not shown) is connected to the output side of the DC / DC 12.

  Since the measuring device 10 shown in FIG. 4 operates by receiving weak electric power from the currents I1 and I2 to be measured, the measuring device 10 has a power supply life like a device that has a power source such as a battery and drives it. No maintenance is required. On the other hand, the I / V converter 13, the CPU 14, and the wireless unit 15 are operated by a voltage supplied via the rectifier circuit 11 and the DC / DC 12, and therefore cannot be operated continuously.

  The hourly measurement value calculation device 20 shown in FIG. 4 calculates the hourly measurement value at the hour determined by the master clock supplied from the host system based on the integrated data discretely input from the measurement device 10. It is a device to calculate. The hourly measurement value calculation device 20 includes an antenna 21 that guides an electromagnetic wave radiated into the space from the antenna 16 of the measurement device 10, a wireless unit 22 that demodulates the received electromagnetic wave and outputs integrated data, and a hourly measurement value calculation. A timer 23 for providing a reference time of the apparatus 20, an input time measuring means 24 for measuring the time when the integrated data is input, a time setting means 25 for setting a time by the system administrator, and storing the integrated data. Integration data storage means 26, correct hour count detection means 27 for detecting the correct number of times existing between the current integration data input time and the previous integration data input time, the current integration data and the previous integration. And an hourly measurement value calculation means 28 for calculating an hourly measurement value based on the data and the hourly number of times sandwiched between the current time and the previous input time.

  The input time measuring means 24, the correct time setting means 25, the correct time count detecting means 27, and the correct time measurement value calculating means 28 may be realized by downloading a program to a CPU (not shown).

FIG. 5 is a diagram showing the temporal change of the internal power supply voltage in the clamp-type power sensor of FIG. 4 and the relationship between the communication timing and the hour on the hour measurement value calculation device.
FIG. 5A shows a temporal change in the internal power supply voltage of the measuring apparatus 10, for example, the supply voltage to the wireless unit 15.

  The period from time t0 to t1 is an initial charging period, and the voltage holding capacitor connected to the output side of the DC / DC 12 is charged by the rectifier circuit 1, and, for example, I / V conversion is performed in a maximum of 15 minutes. 13. The voltage at which the CPU 14 and the wireless unit 15 can operate is reached.

  The period from time t1 to t2 is a measurement / communication period. The I / V conversion 13, the CPU 14 and the wireless unit 15 operate, measure instantaneous values of the currents I1 and I2, and integrate the measured current values for a certain period. Then, the integrated data is generated, and the generated integrated data is transmitted by the wireless unit 15. This measurement / communication period is, for example, 200 ms.

  During the period from time t2 to t4, the I / V conversion 13, the CPU 14, and the wireless unit 15 are on standby for the charge period during which charging is performed to the operable voltage at time t2 to t3 and the operable voltage at time t3 to t4. A sleep period.

Thereafter, the measurement / communication period from time t4 to t5 and the charging / sleep period from time t5 to t7 are repeated.
FIG. 5B shows a temporal change in current consumption of the measuring device 10. 5A and 5B together, the time t1 to t2, the time t4 to t5, and the time t7 to t8 are measurement / communication periods, and the operating current Is flowing. On the other hand, a standby current much smaller than the operating current flows between times t0 and t1, between times t2 and t4, and between times t5 and t7.

  FIG. 5C shows the hour on the time in the hourly measured value calculation device 20. 5B and 5C, the arrow from FIG. 5B to FIG. 5C simulates the timing of the integrated data transferred from the measuring device 10 to the hourly measured value calculating device 20. It is a representation. In the example shown in FIG. 5B and FIG. 5C, there is one hour on the hour when the integrated data is input to the hourly measured value calculation device 20.

(II) Processing of Measuring Device 10 FIG. 6 is a flowchart showing processing of the measuring device according to the first embodiment of the present invention.
With reference to FIGS. 4 and 5, the processing of the measuring apparatus 10 will be described along the flowchart shown in FIG. 5.

  When the process is started, the process proceeds to step S1, and the CPU 14 determines whether or not the power supply voltage is equal to or higher than a predetermined voltage. The predetermined voltage is, for example, DC 5V. Waiting for the power supply voltage to become equal to or higher than the predetermined voltage, and if the power supply voltage becomes equal to or higher than the predetermined voltage (Yes), the process proceeds to step S2.

  In step S2, the CPU 14 waits for the measurement timing. When the measurement timing is reached (Yes), the CPU 14 proceeds to step S3. Here, the measurement timing is time t1, t4, etc. in FIG.

  In step S3, the I / V converter 13 and the CPU 14 measure the instantaneous current values of the currents I1 and I2, and proceed to step S4. In step S4, the CPU 14 integrates the instantaneous current values of the currents I1 and I2 input from the I / V conversion 13 to generate integrated data, and proceeds to step S5.

  In step S5, the wireless unit 15 transmits integrated data to the hourly measured value calculation device 20 via the antenna 16, and returns to step S1. Thereafter, the measuring device 10 repeats the processes of steps S1 to S5.

(III) Processing of the hourly measured value calculating device 20 FIG. 7 is a flowchart showing processing of the hourly measured value calculating device according to the first embodiment of the present invention.
With reference to FIG. 3, the process of the hourly measured value calculation device 20 will be described along the flowchart shown in FIG. 7.

  When the process is started, the process proceeds to step S11, and the input time measuring means 24 in the hourly measured value calculation device 20 waits until the integrated data is input. When the integrated data is input (Yes), step S12 is performed. Proceed to In step S12, it is determined whether or not there is a correct hour between the previous input of accumulated data and the current input. If yes (Yes), the process proceeds to step S13. If not, (No) is correct. The process ends without calculating the hourly measurement value.

  In step S13, the correct hour count detection means 27 determines whether or not there is one correct hour between the current integration data input time and the previous integration data input time. If (Yes), the process proceeds to step S14, and if there are two hours on the hour between the current integration data input time and the previous integration data input time in step S13 (No), the process proceeds to step S15. .

  In step S14, the hourly measured value calculation means 28 calculates the latest accumulated data a (n-1), a (n), the input time difference ΔT between the most recent accumulated data, and the current accumulated data. From the time difference Δt between the input time and the most recent hourly time, the hourly measured value is calculated by the following equation, and the process ends.

Time measured value = a (n−1) − (Δt / ΔT) {a (n) −a (n−1)}
In step S15, the hourly measured value calculation means 28 determines the latest accumulated data a (n-1) and a (n), the input time difference ΔT between the most recent accumulated data, and the current accumulated data. From the time difference Δt between the input time and the most recent hourly time and the time interval TI between the hour and hour, the measurement time of the previous hour and the current hour is calculated by Exit.

Measured value at the previous hour = a (n) − {(Δt + TI) / ΔT} × {a (n) −a (n−1)}
Measured value at current time = a (n−1) − (Δt / ΔT) {a (n) −a (n−1)}
The flowchart shown in FIG. 7 is a process of calculating the hourly measured value from the latest two accumulated data, and the processes of steps S11 to S15 are repeated each time the accumulated data is input.

The processing of the hourly measured value calculation device 20 described above is based on the premise that the hourly time existing between the input times of the latest two integrated data is 2 or less, that is, 0, 1, or 2. Yes.
If the success rate when the integrated data is transferred from the measuring device 10 to the hourly measured value calculating device 20 by wireless communication is 0.9 or more, the integrated data is transferred from the measuring device 10 to the hourly measured value calculating device 20. The probability of failing continuously three times or more is 0.001 or less. In addition, when calculating the missing data by linear interpolation, in consideration of the allowable error, in the hourly measurement value calculation system of the present invention, although depending on the interval between the hour and the hour, the inventor of the present invention 5 or less is considered suitable.

(IV) Generalized method for calculating hourly measured values FIG. 8 is a diagram for explaining a generalized method for calculating hourly measured values according to the present invention.
Referring to FIG. 8, between the previous time and the current time of input of accumulated data, the positive time k-1 times, the positive time k-2 times,. Time and k-1 times on the hour are sandwiched.

In FIG. 8, the triangle A ₁ B ₂ C ₂ and the triangle A ₁ B _k-1 C _k-1 are similar,
Line segment A ₁ B ₂ : Line segment B ₂ C ₂ = Line segment A ₁ B _k−1 : Line segment B _k−1 C _k−1
If the measured value at the time before k-1 times is Y _k-1 ,
Y _k−1 = a (n) − [{Δt + (k−1) T _I } / ΔT] × {a (n) −a (n−1)}
It becomes. Similarly, the measured value at the time before k-2 times is Y _k-2 .
Y _k−2 = a (n) − [{Δt + (k−2) T _I } / ΔT] × {a (n) −a (n−1)}
・ ・ ・ ・ ・ ・
Hour measurement value _{Y 1} of the previous once,
Y ₁ = a (n) − {(Δt + T _I ) / ΔT} × {a (n) −a (n−1)}
The current hour measurement value _{Y 0} is,
Y ₀ = a (n) − (Δt / ΔT) × {a (n) −a (n−1)}
Is calculated by

(Effect of Embodiment 1)
According to the hourly measurement value calculation system, hourly measurement value calculation device, hourly measurement value calculation method, and program thereof according to the present invention, there are the following effects (a) to (c).
(A) The hourly measured value according to the latest two times of accumulated data input to the hourly measured value calculation device and the number of hours on the hour between the previous input time and the current input time of the accumulated data. Is calculated. Therefore, even if the measurement value collected by communication is lost, it is possible to accurately calculate the hourly measurement value.

(B) Even when the wireless communication state between the measuring device 10 and the hourly measured value calculating device 20 is deteriorated and the accumulated data from the measuring device 10 is lost, accumulated data for the two most recent successful receptions; It is possible to calculate the hourly measured value according to the number of hours on the hour existing between the previous input time of the integrated data and the current input time.

(C) By designing the wireless line so that the success rate when the integrated data is transferred from the measuring apparatus 10 to the hourly measured value calculating apparatus 20 by wireless communication is 0.9 or more, 0.999 or more is achieved. It is possible to calculate the hourly measured value by linear interpolation with probability.

Embodiment 2

  The configuration of the hourly measurement value collection system according to the second embodiment of the present invention is basically the same as that of FIG. 1 showing the first embodiment of the present invention. In the hourly measurement value collection system according to the second embodiment of the present invention, a plurality of measurement devices 10-1, 10-2,..., 10-n in FIG. The accumulated data is transferred by communication using transmission packets whose timings are shifted from each other.

  FIG. 9 is a diagram for explaining the operation of the hourly measurement value collection system according to the second embodiment of the present invention. FIG. 9A illustrates the timing of the transmission packet of the measurement device, the time of the hourly measurement value calculation device, and FIG. 9B is a diagram showing an example of changes in the hourly measured value in each measuring device calculated by the hourly measured value calculating device.

  In FIG. 9A, the measuring apparatus 10-1 outputs a transmission packet at timings t0, t3, t6, and t9. The measuring device 10-2 outputs a transmission packet at timings t1, t4, t7, and t10. Furthermore, the measuring device 10-3 outputs a transmission packet at the timings t2, t5, t8, and t11.

  The hourly measured value calculation device 20 corrects the time based on the accumulated data a (n−1) and a (n) obtained by demodulating the transmission packet input from the measurement device 10-1 at times t0 and t3. The hourly measured value at time ts1 is calculated. The hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts2 based on the integrated data a (n-1) and a (n) input at times t3 and t6. Further, the hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts3 based on the integrated data a (n-1) and a (n) input at times t6 and t9.

  Similarly, the hourly measured value calculation device 20 is based on integrated data a (n−1) and a (n) obtained by demodulating a transmission packet input from the measurement device 10-2 at times t1 and t4. Thus, the measured value at the hour at the hour ts2 is calculated. The hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts3 based on the integrated data a (n-1) and a (n) input at times t4 and t7. Further, the hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts4 based on the integrated data a (n-1) and a (n) input at times t7 and t10.

  Further, the hourly measured value calculation device 20 is based on integrated data a (n−1) and a (n) obtained by demodulating the transmission packet input from the measurement device 10-2 at times t2 and t5. Then, the measured value at the hour at the hour ts2 is calculated. The hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts3 based on the integrated data a (n-1) and a (n) input at times t5 and t8. Further, the hourly measurement value calculation device 20 calculates the hourly measurement value at the hour ts4 based on the integrated data a (n-1) and a (n) input at times t8 and t11.

FIG. 9B shows an example of changes in the time measurement values of the three measuring devices 10-1, 10-2, and 10-3 at the time ts1, ts2, ts3, and ts4.
In this way, by using transmission packets with shifted timings, accumulated data of each measuring device 10 is collected in one hourly measured value calculating device 20, and the hourly measured value of each measuring device 10 is calculated to produce one graph. If it is displayed, the temporal change of the hourly measured value in each measuring device can be visualized.

  As a method of visualizing the hourly measurement value, a report in which the hourly measurement value is a daily report, a weekly report, a monthly report, or an annual report may be output. Further, the current hourly measured value may be output to the host system 30 in real time according to a command from the host system 30.

(Modification)
As mentioned above, although embodiment of this invention was described, this invention is not limited to embodiment mentioned above, A various structure or embodiment can be taken in the range which does not deviate from the summary of this invention.

Examples of usage forms and modifications of the present invention include the following (a) to (c).
(A) In the description of the embodiment of the present invention, the clamp type power sensor as a measuring device has been described as an example, and the system for calculating the hourly measured value of the power has been described. However, the physical quantity measured by the measuring device is the power. It is not limited and may be a flow rate of city gas or water and sewage.

(B) In the description of the embodiment of the present invention, the relationship between the measurement device and the hourly measurement value calculation device has been mainly described, but a plurality of hourly measurement value calculation devices 20 (= 20-1,... The hourly measured value calculated in 20-k) is in accordance with the reference clock signal given from the host system 30. Therefore, the host system 30 monitors the hourly measured values in the plurality of hourly measured value calculation devices in real time, and avoids a peak of power consumption in a specific area specific time zone from the host system 30 based on the monitoring result. The present invention can be applied to a system that controls power limitation, such as a smart grid.

(C) In the description of the embodiment of the present invention, the application example to the mesh wireless communication network is not mentioned, but the accumulated data is transferred to the target hourly measured value calculation device while transferring the accumulated data by the bucket relay method. By delivering, application to a mesh wireless communication network is also possible.

10, 10-1, ... 10-n Measuring device 11 Rectifier circuit 12 DC / DC
13 I / V conversion 14 CPU
15, 22 Wireless units 16, 21 Antenna 20 Time measurement value calculation device 23 Timer 24 Input time measurement means 25 Time setting means 26 Accumulated data storage means 27 Time count detection means 28 Time measurement value calculation means 30 Host system

Claims (13)

Every time the integration data obtained by integrating the instantaneous value of a predetermined physical quantity for a certain period is input, it is the time that is the time set in advance as the time to calculate the measurement value from the time difference between the current input and the previous input of the integration data Calculate the hourly measured value that is the measured value at
An hourly measurement value calculation device for calculating the hourly measurement value for each number of times by a complementary formula corresponding to the number of times of the present hour existing between the current input time and the previous input time.   2. The hourly measured value calculation apparatus according to claim 1, wherein the hour is a time determined according to a reference clock given from a host system. On the hour
The hourly measured value calculation apparatus according to claim 1, wherein the hourly measurement value calculation apparatus includes time intervals of a timer of the timer. The hourly measurement value calculation device further includes:
The processing according to claim 1, further comprising: processing the current hourly measured value into a daily form and outputting the current hourly measured value to the higher system in real time according to a command from the higher system. The hourly measured value calculation apparatus according to any one of the preceding claims. An hourly measurement value calculation system comprising a measurement device and an hourly measurement value calculation device,
The measuring device measures an instantaneous value of a predetermined physical quantity, integrates the measured instantaneous value for a certain period, generates and outputs integrated data,
The hourly measured value calculation device is a time determined in advance as a time to calculate a measurement value from the time difference between the current input time and the previous input time of the integrated data every time the integrated data is input from the measuring device. Calculate the hourly measured value, which is a measured value at a certain hour, and measure the hourly measured value at each number of times by using a complementary formula according to the number of times of the present hour between the current input and the previous input. An hourly measurement value calculation system characterized by calculating   The communication state from the measuring device to the hourly measured value calculating device, and the hourly interval, so that the number of hours on the hour existing between the current input and the previous input is 2 or less. The hourly measured value calculation system according to claim 5, which is adjusted. The integration data at the previous input and the integration data at the current input are respectively
a (n-1) and a (n),
The time difference between the current input and the previous input of the accumulated data, the time difference between the adjacent hours, and the time difference between the current time and the most recent time,
If ΔT, T _I , and Δt,
Between the time of the current input and the time of the previous input, the current time measurement value from the current time measurement value k-1 times before the current time is k times, respectively.
The measured value at the time before k-1 times = a (n) − [{Δt + (k−1) T _I } / ΔT] × {a (n) −a (n−1)}
Time-measured value before k-2 times = a (n) − [{Δt + (k−2) T _I } / ΔT] × {a (n) −a (n−1)}
...
One hour previous measured value = a (n) − {(Δt + T _I ) / ΔT} × {a (n) −a (n−1)}
Current measured value = a (n) − (Δt / ΔT) × {a (n) −a (n−1)}
However, k = 1, 2,...
6. The hourly measured value calculation system according to claim 5, wherein The measuring device is
The hourly measured value calculation system according to claim 5, wherein the hourly measured value calculation system is a self-feeding clamp type power sensor that measures a current amount flowing through a transmission line and acquires a power source from the measured current. Delivery of the integrated data from the measuring device to the hourly measured value calculating device is as follows:
6. The hourly measured value calculation system according to claim 5, wherein the hourly measurement value calculation system is performed by radio packet communication transmitted at regular intervals. An hourly measurement value collection system comprising a plurality of measurement devices and an hourly measurement value calculation device,
The plurality of measuring devices measure an instantaneous value of a predetermined physical quantity of each measurement target, integrate the measured instantaneous value for a certain period, generate integrated data, and output at a timing that does not overlap each other,
The hourly measurement value calculation device calculates a measurement value in advance from the time difference between the current input time and the previous input time of each of the integration data each time the integration data is input from the plurality of measurement devices. Calculate the hourly measured value, which is the measured value at the hour that is the set time, and at each number of times by a complementary formula according to the number of hours on the hour between the current input and the previous input. An hourly measurement value collection system for calculating an hourly measurement value for each measurement object of the plurality of measuring devices. The hourly measurement value collection system further includes:
The hourly measured value collection system according to claim 10, further comprising a configuration for displaying the hourly measured values at the respective times calculated for each measurement target of the plurality of measuring devices in a graph. A first process for measuring an instantaneous value of a predetermined physical quantity;
A second process of integrating the measured instantaneous values for a certain period to generate integrated data;
A third time for determining the number of times on which a predetermined time is present and a time at which a measurement value is calculated in advance between a time at which the integrated data is input this time and a time at which the integrated data is previously input. Processing,
Based on the determination result in the third process, the time difference between the current input time and the previous input time of the integrated data is calculated by a complementary formula corresponding to the number of the current hour between the current input and the previous input. A fourth process for calculating a measured value on the hour which is a measured value on the hour based on
An hourly measurement value calculation method characterized by comprising: In the hourly measurement value calculation system including the measurement device and the hourly measurement value calculation device,
A first process for measuring an instantaneous value of a predetermined physical quantity;
A second process of integrating the measured instantaneous values for a certain period to generate integrated data;
A third process for determining how many times the hour has existed between the time when the integrated data was input this time and the time when the integrated data was previously input;
Based on the determination result in the third process, between the current input time and the previous input time, the current input time and the previous input time of the integrated data are calculated between the current input time and the previous input time by a supplement formula according to the number of times on the hour. A fourth process for calculating a measured value on the hour that is a measured value on the hour based on the time difference;
Is executed by a computer of the measuring device and the hourly measured value calculating device.

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