TW202414159A - Data processing system, physical quantity measuring device, data collection device, data processing method, data provision method, and data collection method - Google Patents

Abstract

This data processing system includes a physical quantity measuring device and a data collection device. This physical quantity measuring device transmits a physical quantity data string constituted by a plurality of physical quantity data, which are obtained when the physical quantity is measured by a physical quantity sensor under sampling conditions, so that the measurement order thereof can be determined, and a time elapsed since the last measurement, which is obtained by measuring, with a timer count unit, the time elapsed after the physical quantity was measured last time by the physical quantity sensor, to the data collection device. The data collection device specifies a measurement time for each of the plurality of physical quantity data, which constitute the physical quantity data string, on the basis of the current time measured by a time measurement unit and the time elapsed since the last measurement.

Description

Data processing system, physical quantity measuring device, data collecting device, data processing method, data providing method, and data collecting method

The present invention relates to a data processing system, a physical quantity measuring device, a data collecting device, a data processing method, a data providing method, and a data collecting method. This application claims priority based on Japanese Patent Application No. 2022-156371 filed in Japan on September 29, 2022, and the contents thereof are hereby incorporated by reference.

In the past, a measuring device was installed on the monitored object to monitor the status of the monitored device. For example, Patent Document 1 discloses a power monitoring device that adds the date and time (measurement time) measured by a real-time clock (RTC) circuit to the monitoring information extracted by the power monitoring information extraction means and transmits it to a remote monitoring system. [Prior Technical Document] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2002-34181

(Invent the problem you want to solve)

The power monitoring device disclosed in Patent Document 1 has a real-time clock circuit for adding the measurement time to the monitoring information, which increases the cost. Therefore, in order to reduce the cost, it is considered to omit the real-time clock circuit. However, if the real-time clock circuit is simply eliminated, when analyzing the monitoring information, it is impossible to understand when the monitoring information was obtained, and there is a problem that it is difficult to analyze the monitoring information in a time series.

In view of the above problems, the present invention aims to provide a data processing system, a physical quantity measuring device, a data collecting device, a data processing method, a data providing method, and a data collecting method that can detect a specific measurement moment in a physical quantity data collecting device without setting a real-time clock circuit in the measuring device for measuring the physical quantity. (Means for solving the problem)

In order to achieve the above-mentioned purpose, a data processing system of one aspect of the present invention has: one or more physical quantity measuring devices; and one or more data collection devices, which are communicable with the physical quantity measuring devices; The physical quantity measuring devices have: A physical quantity detector, which measures the physical quantity of the measurement object; A storage unit, which stores the physical quantity data of the physical quantity measured by the physical quantity detector in the form of a circular buffer; A timer statistics unit, which counts statistical values as time passes; A measurement processing unit, which stores the physical quantity data when the physical quantity is measured by the physical quantity detector under specified sampling conditions in the storage unit according to the statistical values counted by the timer statistics unit; A timing processing unit, which uses the timer statistics unit to count the time elapsed since the physical quantity detector last measured the physical quantity as the time elapsed after the last measurement; and A transmission processing unit, which, when the specified transmission conditions are met, transmits a physical quantity data sequence that can be formed by storing a plurality of the physical quantity data in the storage unit in a measurement order that can identify the physical quantity data, and the time elapsed after the last measurement counted by the timing processing unit to the data collection device; The data collection device comprises: A time measurement unit, which measures the current time; A receiving processing unit, which receives the physical quantity data sequence and the time elapsed after the last measurement from the physical quantity measurement device; A time-specific processing unit, which specifies the measurement time when the physical quantity is measured, based on the current time measured by the time measurement unit and the time elapsed after the last measurement received by the receiving processing unit, for the plurality of physical quantity data constituting the physical quantity data sequence received by the receiving processing unit, as the physical quantity data; and a storage processing unit, which stores each of the physical quantity data in the physical quantity data sequence received by the receiving processing unit in correspondence with the measurement time specified by the time-specific processing unit in the storage device. (Effect of the invention)

When the data processing device of the present invention is used, the physical quantity measuring device can form a physical quantity data column by measuring a plurality of physical quantity data when the physical quantity is measured by the physical quantity detector under sampling conditions, and the physical quantity data column can be identified by the measurement order; and the time after the last measurement of the physical quantity measured by the physical quantity detector is measured by the timer statistics unit, and the data collection device is transmitted to the data collection device. The data collection device specifies the measurement time for the plurality of physical quantity data constituting the physical quantity data column according to the current time measured by the time measurement unit and the time after the last measurement. Therefore, even if the real-time clock circuit is not set in the physical quantity measuring device, the measurement time of each physical quantity data can be specified in the data collection device.

Problems, structures, and effects other than those described above will become apparent from the embodiments of the invention described below.

Hereinafter, the embodiments for implementing the present invention will be described with reference to the drawings. Hereinafter, the necessary scope of the description for achieving the purpose of the present invention is schematically shown, and the necessary scope of the relevant parts of the present invention is mainly described.

1 is a diagram showing an overall configuration of an example of a data processing system 1. The data processing system 1 processes physical quantity data when a pump device 2 measures a physical quantity of a measurement target, and functions as a system for managing the pump device 2.

The data processing system 1 has: a pump device 2 as a monitoring object; a physical quantity measuring device 3 that can be installed on the pump device 2; a data collection device 4 that can communicate with the physical quantity measuring device 3; a data management device 5 that can communicate with the data collection device 4; and a terminal device 6 that can communicate with the data management device 5 as its main components. Each device 2 to 6 is composed of, for example, a general-purpose or dedicated computer (refer to FIG. 6 described later), and can send and receive various data to each other via a network 7. In addition, the number of each device 2 to 6 is not limited to the example of FIG. 1, and can be one or more.

The pump device 2 is a device for conveying any fluid, and is installed in infrastructure (water supply system, drainage system, etc.) or factory equipment (petroleum refining, power generation, manufacturing, chemical processing, etc.) for use. The pump device 2 includes: a pump unit 20; a motor 21 that serves as a driving source for the pump device 2; a transmission unit 22 that transmits the driving force generated by the motor 21 to the pump unit 20; and a pump control board 23 that controls the operation of the pump device 2.

The pump unit 20 is composed of, for example, an impeller, a rotating shaft, a bearing, a mechanical seal, a gland seal, a housing, a pipe, etc. The motor 21 is composed of, for example, an inverter motor or any other type of motor. The transmission unit 22 is composed of, for example, a coupler, a connector, a joint, a bearing, etc. The pump control board 23 is composed of, for example, a built-in computer. The rotation of the motor 21 is controlled according to the set value of the operating condition set by the user (the operator or manager of the pump device 2) and the detection value of the detector type (not shown) provided in each part of the pump unit 20 and the motor 21. In addition, the pump device 2 can also communicate with each device 3 to 6.

The physical quantity measuring device 3 is a device for measuring the physical quantity generated by the pump device 2, and is installed at any position of the pump unit 20, the motor 21, or the transmission unit 22. The physical quantity measuring device 3 includes: a physical quantity detector 30 for measuring the physical quantity of the measurement object; a data processing device 31 for processing the physical quantity data when the physical quantity is measured by the physical quantity detector 30; and a frame 300 that has the physical quantity detector 30 and the data processing device 31 built in and can be installed in the pump device 2.

The physical quantity of the measurement object detected by the physical quantity detector 30 is, for example, acceleration (vibration), velocity, displacement, ambient sound, etc. The physical quantity detector 30 is, for example, composed of an acceleration detector that can measure acceleration, a velocity detector that can measure velocity, a displacement detector that can measure displacement, a microphone that can measure ambient sound, etc. In addition, the physical quantity of the measurement object is not limited to the above examples, and can also be, for example, a physical quantity of pressure, load, temperature, current value, voltage value, etc. In this case, a physical quantity detector 30 of a pressure detector, a load detector, a temperature detector, a current detector, a voltage detector, etc. is used. In addition, the physical quantity detector 30 can also include a plurality of detectors for measuring a plurality of physical quantities respectively.

The data processing device 31 is a device for processing physical quantity data that converts an analog signal showing the physical quantity measured by the physical quantity detector 30 into a digital signal. In addition, the data processing device 31 may also have an A/D conversion circuit that converts an analog signal into a digital signal, and may also obtain the physical quantity data converted into a digital signal from the physical quantity detector 30.

The installation position of the frame 300 is determined by the physical quantity of the measurement object. In addition, one physical quantity measuring device 3 can be installed in the pump device 2, as shown in FIG1 , or multiple physical quantity measuring devices 3 can be installed. When multiple physical quantity measuring devices 3 are installed, a common physical quantity can be measured, or different physical quantities can be measured.

The data collection device 4 is a device for collecting data from the physical quantity measuring device 3 (specifically, the data processing device 31) for use by users (managers or inspectors and repair workers of the pumping device 2) at the installation site of the pumping device 2. The data collection device 4 is composed of a portable computer such as a smart phone or a tablet computer. For example, when the user of the data collection device 4 approaches within a specified distance from the physical quantity measuring device 3, the data collection device 4 collects data from the physical quantity measuring device 3 by establishing communication with the physical quantity measuring device 3. In addition, the data collection device 4 is installed with programs such as applications or browsers to accept various input operations. In addition, the data collection device 4 displays the data collected from the physical quantity measuring device 3 on a display screen, or transmits the data to the data management device 5.

The data management device 5 has a database 50 for managing the data collected by the data collection device 4, and is composed of, for example, a server-type computer or a cloud-type computer. The data management device 5 stores the data received from the data collection device 4 in the database 50, or transmits a notification message to the terminal device 6 when the data satisfies a specified notification condition. Furthermore, when the data management device 5 receives a request from the terminal device 6 to refer to the data stored in the database 50, the reference information of the database 50 is transmitted to the terminal device 6.

The terminal device 6 is a device used by a user (manager of the pump device 2 or inspector or repair worker, etc.) located at a place far from the pump device 2, and is composed of, for example, a fixed computer or a portable computer. The terminal device 6 is installed with a program such as an application or a browser, accepts various input operations, and displays various information (notification messages or reference information of the database 50) on the display screen. In addition, the terminal device 6 can also serve as the data collection device 4.

The network 7 is constructed by wired communication or wireless communication, or a combination of wired communication and wireless communication according to any communication standard. Specifically, for example, a standardized communication network such as the Internet can be used; or a communication network managed within a building such as a local area network; or a combination of these communication networks can be used. In addition, the communication standard of wireless communication typically uses an international standard. The communication means of the international standard include: IEEE802.15.4, IEEE802.15.1, IEEE802.15.11a, 11b, 11g, 11n, 11ac, 11ad, ISO/IEC14513-3-10, IEEE802.15.4g and other methods. In addition, Bluetooth (registered trademark), Bluetooth Low Energy, Wi-Fi, ZigBee (registered trademark), Sub-GHz, EnOcean (registered trademark), LTE, etc. can also be used.

Fig. 2 is a block diagram showing an example of the physical quantity measuring device 3. Fig. 3 is a functional explanatory diagram showing an example of the physical quantity measuring device 3. In addition to the above-mentioned physical quantity detector 30, the physical quantity measuring device 3 also has: a control unit 32 constituting a data processing device 31, a timer statistics unit 33, a storage unit 34, a communication unit 35 and a power supply 36 as its main components.

The control unit 32 performs the functions of the measurement processing unit 320 , the timing processing unit 321 , and the transmission processing unit 322 , for example, by executing the data processing program 340 stored in the storage unit 34 .

The timer statistics unit 33 is, for example, composed of an integrated circuit with a built-in timer circuit, and counts the statistical value C as time passes. The timer statistics unit 33 operates by receiving various instructions from the control unit 32. Instructions include, for example, reading and resetting the statistical value C, starting and ending statistics, and generating a period of interrupt signals based on the statistical value C. In addition, the timer statistics unit 33 can also be built into the control unit 32 to implement a part of the functions of the control unit 32.

The statistical value C, for example, uses the value of the statistical internal clock (clock statistical value); or converts the clock statistical value into a time value (time statistical value) based on the clock cycle (which can also be the clock frequency) of the internal clock. For example, when the clock cycle is 0.1 [ms], the clock statistical value "600,000 times" is converted into "60,000ms", that is, "60s" as the time statistical value. The statistical value C of this embodiment is used to illustrate the case of using the time statistical value.

The storage unit 34 stores various programs (data processing program 340, etc.) or data (setting information 341, circular buffer data 342, time Tf after the last measurement, etc.) used when the physical quantity measuring device 3 operates.

The setting information 341 stores, for example, sampling conditions as setting parameters that are referred to by the control unit 32 when the physical quantity measuring device 3 operates. In addition, the setting information 341 can be configured by setting the data collection device 4. The sampling conditions are conditions for setting the measurement time of the physical quantity detector 30 to measure the physical quantity, for example, by setting the sampling period or the sampling frequency. The sampling conditions of this embodiment illustrate the case where the sampling period Sp is set.

The annular buffer data 342 stores the physical quantity data D when the physical quantity is measured by the physical quantity detector 30 in the form of an annular buffer. The annular buffer data 342 has a memory area (physical quantity data memory area) that is ensured according to the upper limit data amount that can store the physical quantity data D. As shown in FIG. 3 , the annular buffer data 342 is managed by the next storage memory address An that displays the memory address A when the physical quantity data D is stored next time; and the next storage index In that displays the index I when the physical quantity data D is stored next time.

The data structure of the annular buffer data 342 is as shown in FIG3 , and includes, for example, an index I for assigning the measurement order of the physical quantity data D by a serial number, etc., to each memory address A arranged in the physical quantity data memory area; a statistical value C of the measurement time counter statistical unit 33 of the physical quantity data D; and a buffer corresponding to and stored in the physical quantity data D measured by the physical quantity detector 30. In addition, the statistical value C may be omitted, and the statistical value C may be omitted in a case where, for example, the statistical value C is a cumulative value and can be used as information indicating the measurement order of the physical quantity data D.

The communication unit 35 functions as a communication interface for, for example, sending and receiving various data with the data collection device 4 via the network 7. The power source 36 is composed of, for example, a primary battery, a secondary battery, a solar cell, a fuel cell, etc., and supplies power to each part of the physical quantity measurement device 3. In addition, the power source 36 can also receive power supply from the pump device 2.

The measurement processing unit 320 stores the physical quantity data D when the physical quantity detector 30 measures the physical quantity in the annular buffer data 342 of the storage unit 34 according to the statistical value C counted by the timer statistical unit 33 and under the sampling conditions specified by the setting information 341.

For example, the measurement processing unit 320 sends a command indicating the generation cycle of the interrupt signal to the timer statistics unit 33 in order to make the timer statistics unit 33 generate an interrupt signal according to the sampling cycle Sp as the sampling condition. When the statistical value C of the timer statistics unit 33 receiving the command satisfies the generation cycle of the interrupt signal (=sampling cycle Sp), the measurement processing unit 320 receives the interrupt signal from the timer statistics unit 33, and measures the physical quantity through the physical quantity detector 30 at this time (measurement time), and obtains the physical quantity data D. Then, the measurement processing unit 320 stores the index I indicated by the next storage index In and the statistical value C of the timer statistics unit 33 when the interrupt signal is received in the buffer indicated by the next storage memory address An, together with the physical quantity data D obtained. Furthermore, the measurement processing unit 320 updates the next storage memory address An in the memory address A of the next buffer (in the case of the last buffer, returns to the front buffer), and updates the next storage index In by incrementing the index I.

In addition, the measurement processing unit 320 can also obtain physical quantity data D by performing a specified operation on the physical quantity measured by the physical quantity detector 30. The operation on the physical quantity data D is, for example, an operation of obtaining a moving average of the physical quantity data D of a specified data quantity portion at different measurement times, and for example, a simple moving average or a weighted moving average can be cited.

The timing processing unit 321 counts the time elapsed since the last physical quantity measured by the physical quantity detector 30 as the physical quantity data D as the last measured time Tf. For example, the timing processing unit 321 sends an instruction to read the statistical value C to the timer statistical unit 33 at the measurement time when the physical quantity detector 30 measures the physical quantity as the physical quantity data D and the time of the timing object that becomes the object of counting the last measured time Tf. In this way, the timing processing unit 321 counts the last measured time Tf by obtaining the difference between the statistical value C of the timer statistical unit 33 at the measurement time of the physical quantity data D and the statistical value C of the timer statistical unit 33 at the timing object time.

In addition, the timing processing unit 321 may also use the statistical value C corresponding to the physical quantity data D last stored in the annular buffer data 342 as the statistical value C at the measurement time to count the time Tf after the last measurement. In addition, the timing processing unit 321 may also send an instruction indicating the reset of the statistical value C to the timer statistics unit 33 at the measurement time of the physical quantity data D, and use the statistical value C at the time of the timed object to count the time Tf after the last measurement.

When the specified transmission condition is met, the transmission processing unit 322 transmits the physical quantity data array Dset1 composed of the plurality of physical quantity data D stored in the annular buffer data 342 of the storage unit 34, and the last measured time Tf counted by the timing processing unit 321 when the transmission condition is sufficient (timing object time) to the data collection device 4. In addition, the transmission processing unit 322 can also transmit the sampling condition specified by the setting information 341, the physical quantity data array Dset1 and the last measured time Tf to the data collection device 4.

The transmission conditions include, for example, when the data requesting the physical quantity data D is received from the data collection device 4; or when the amount of the physical quantity data D stored in the annular buffer data 342 exceeds a specified reference value.

The physical quantity data sequence Dset1 is a data set composed of a plurality of physical quantity data D that are constituted by a measurement order that can identify the physical quantity data D. In the physical quantity data sequence Dset1, in order to identify the measurement order of the physical quantity data D, at least one of the index I and the statistical value C corresponding to each physical quantity data D is included. The time Tf after the last measurement is equivalent to the time from the last measurement of the physical quantity as the physical quantity data D to the sufficient time of the transmission condition that satisfies the transmission condition, which is counted by the timing processing unit 321 when the transmission condition is sufficient. The physical quantity data sequence Dset1 of Figure 3 is composed of 100 physical quantity data D1~D100, and illustrates the case of including the index I and the statistical value C. In addition, the time Tf after the last measurement is an example of the time that has passed since the measurement time of the last measured physical quantity data D100.

Fig. 4 is a block diagram showing an example of the data collection device 4. Fig. 5 is a functional diagram showing an example of the data collection device 4. The data collection device 4 has a control unit 40, a time measurement unit 41, a storage unit 42, a communication unit 43, an input unit 44 and an output unit 45 as its main components.

The control unit 40 performs the functions of the receiving processing unit 400, the time-specific processing unit 401, and the storage processing unit 402, for example, by executing the data collection program 420 stored in the storage unit 42.

The time measurement unit 41 is composed of an integrated circuit with a built-in real-time clock (RTC) circuit, for example, to measure the current time Tc. The time measurement unit 41 receives various instructions from the control unit 40 and operates. The instructions may, for example, read or set the current time Tc. In addition, the time measurement unit 41 may also be built into the control unit 40 and implemented as a part of the function of the control unit 40.

The storage unit 42 stores various programs (data collection program 420, etc.) and data (setting information 421, etc.) used when the data collection device 4 operates. The setting information 421, for example, stores setting parameters (data collection conditions, etc.) that are referred to by the control unit 40 when the data collection device 4 operates. In addition, the setting information 421 is configured to be configurable by the data collection device 4, for example.

The communication unit 43 functions as a communication interface by, for example, transmitting and receiving various data with the physical quantity measuring device 3 or the data management device 5 via the network 7. The input unit 44 and the output unit 45 function as a user interface by accepting input operations from the user and outputting various information via a display screen or voice.

When the specified collection condition is met, the receiving processing unit 400 transmits a data request for the physical quantity data D to the physical quantity measuring device 3. In response, the physical quantity measuring device 3 receives the physical quantity data sequence Dset1 and the time Tf after the last measurement. For example, when the receiving processing unit 400 receives the user's input operation instruction to collect physical data as a collection condition, or when the data collection condition set by the setting information 421 is met, or when the execution instruction to collect physical data is received from the data management device 5, the data request for the physical quantity data D is transmitted to the physical quantity measuring device 3. In addition, the receiving processing unit 400 can also receive a sampling condition from the physical quantity measuring device 3 along with the physical quantity data sequence Dset1 and the time Tf after the last measurement.

The time-specific processing unit 401 specifies the measurement time Ts when measuring the physical quantity as the physical quantity data D for the plurality of physical quantity data D constituting the physical quantity data set Dset1 received by the receiving processing unit 400, based on the current time Tc measured by the time measurement unit 41 and the time Tf after the last measurement received by the receiving processing unit 400.

For example, the time specifying processing unit 401 sends a command indicating to read the current time Tc to the time measuring unit 41, thereby obtaining the current time Tc measured by the time measuring unit 41. Then, when the physical quantity data array Dset1 is composed of 100 pieces of physical quantity data D1 to D100, including statistical values C1 to C100, as shown in FIG. 3 and FIG. 5 , the time specifying processing unit 401 uses the current time Tc as a reference, and specifies the time obtained by subtracting the time Tf after the last measurement from the current time Tc as the measurement time Ts100 (=Tc-Tf) of the last measured physical quantity data D100. Then, the moment specifying processing unit 401 specifies the moment obtained by subtracting the statistical value C100 from the measurement moment Ts100 as the measurement moment Ts99 (= T100 - C100) of the physical quantity data D99 measured one sampling cycle portion from the last measurement time. Then, the moment specifying processing unit 401 specifies the moment obtained by subtracting the statistical value C99 from the measurement moment Ts99 as the measurement moment Ts98 (= T99 - C99) of the physical quantity data D98 measured two sampling cycle portions from the last measurement time. By repeating such processing, the moment specifying processing unit 401 can specify the measurement moments Ts1 to Ts97 even for each of the physical quantity data D1 to D97.

In addition, when the time-specific processing unit 401 further receives the sampling condition, the measurement time Ts can be specified for the plurality of physical quantity data D constituting the physical quantity data set Dset1 according to the current time Tc, the time Tf after the last measurement, and the sampling condition. In this case, when the time-specific processing unit 401 specifies the measurement time Ts, it only needs to subtract the statistical value C, for example, by subtracting the time equivalent to the sampling period Sp according to the sampling condition.

The storage processing unit 402 stores each physical quantity data D in the physical quantity data sequence Dset1 received by the receiving processing unit 400 in correspondence with the measurement time Ts specified by the time specifying processing unit 401 in the database 50 as a storage device. Specifically, the storage processing unit 402 associates the physical quantity data D with the measurement time Ts for each physical quantity data D, thereby generating a physical quantity data sequence Dset2 with the measurement time, which is composed of the physical quantity data D and the measurement time Ts. Then, the storage processing unit 402 transmits the physical quantity data sequence Dset2 with the measurement time to the data management device 5 and stores it in the database 50.

In addition, the physical quantity data column Dset2 with the measurement time can also be displayed on the display screen of the data collection device 4. In addition, identification information (device ID of the pump device 2, device ID of the physical quantity measurement device 3, etc.) for identifying at least one of the pump device 2 and the physical quantity measurement device 3 can also be added to the physical quantity data column Dset2 with the measurement time by the storage processing unit 402 (which can also be the transmission processing unit 322 of the physical quantity measurement device 3). In this case, the physical quantity data column Dset2 with the measurement time can also be stored in the database 50 in a state associated with the identification information.

Fig. 6 is a diagram showing an example of the hardware configuration of a computer 900 constituting each device. The pump device 2 (mainly the pump control board 23), the physical quantity measuring device 3 (mainly the data processing device 31), the data collection device 4, the data management device 5, and the terminal device 6 are respectively configured by a general-purpose or dedicated computer 900.

As shown in FIG6 , the computer 900 mainly includes a bus 910, a processor 912, a memory 914, an input device 916, an output device 917, a display device 918, a storage device 920, a communication I/F (interface) section 922, an external device I/F section 924, an I/O (input and output) device I/F section 926, and a media input and output section 928. In addition, the above components may be omitted as appropriate depending on the purpose of the computer 900.

The processor 912 is composed of one or more arithmetic processing devices (CPU (Central Processing Unit), MPU (Micro-processing unit), DSP (Digital Signal Processor), GPU (Graphics Processing Unit), NPU Neural Processing Unit, etc.), and acts as a control unit that controls the entire computer 900. The memory 914 stores various data and programs 930, and is composed of, for example, volatile memory (DRAM, SRAM, etc.) that functions as a main memory, non-volatile memory (ROM), flash memory, etc.

The input device 916 is composed of, for example, a keyboard, a mouse, a numeric keypad, an electronic pen, etc., and functions as an input unit. The output device 917 is composed of, for example, a voice (sound) output device, a vibration device, etc., and functions as an output unit. The display device 918 is composed of, for example, a liquid crystal display, an organic EL display, electronic paper, a projector, etc., and functions as a display unit. The input device 916 and the display device 918 may also be integrally configured, such as a touch panel display. The storage device 920 is composed of, for example, an HDD, an SSD (Solid State Drive), etc., and functions as a storage unit. The storage device 920 stores various data required for the execution of the operating system and the program 930.

The communication I/F unit 922 is connected to a network 940 (which may be the same as the network 7 in FIG. 1 ) such as the Internet and an enterprise network by wire or wireless, and performs the function of a communication unit for transmitting and receiving data with other computers according to a specified communication specification. The external device I/F unit 924 is connected to an external device 950 such as a camera, a printer, a scanner, a reader/writer by wire or wireless, and performs the function of a communication unit for transmitting and receiving data with the external device 950 according to a specified communication specification. The I/O device I/F section 926 is connected to various I/O devices 960 such as detectors and actuators, and functions as a communication section for transmitting and receiving various signals and data such as detection signals of detectors and control signals of actuators with the I/O devices 960. The media input and output section 928 is composed of drive devices such as digital optical disk drives (DVD drives), optical disk drives (CD drives), memory card slots, and USB connectors, and reads and writes data on media (permanent storage media) 970 such as DVDs, CDs, memory cards, and USB memories.

In the computer 900 having the above configuration, the processor 912 calls the program 930 stored in the storage device 920 to the memory 914 for execution, and controls each part of the computer 900 via the bus 910. In addition, the program 930 can also be stored in the memory 914 instead of the storage device 920. The program 930 can also be recorded in the medium 970 in the form of an installable file or an executable file, and provided to the computer 900 via the media input and output unit 928. The program 930 can also be provided to the computer 900 via the communication I/F unit 922 and by downloading via the network 940. In addition, the computer 900 may also use hardware such as FPGA (field programmable gate array) and ASIC (application specific integrated circuit) to implement various functions implemented by the processor 912 executing the program 930.

Computer 900 is any electronic device, such as a fixed computer or a portable computer. Computer 900 may be a client computer, a server computer, or a cloud computer. For example, it may be a built-in computer such as a control panel, a controller (including a microcomputer, a programmable logic controller, a sequencer), etc. (Data processing method)

Fig. 7 is a flowchart showing an example of an operation performed by the physical quantity measuring device 3 (data processing device 31) and the data collecting device 4. A series of processing (data processing method) shown in Fig. 7 is performed by processing (data providing method) performed by the physical quantity measuring device 3 and processing (data collecting method) performed by the data collecting device 4.

7, the following describes a situation in which the physical quantity measuring device 3 repeatedly measures the physical quantity according to the sampling period Sp as the sampling condition specified in the setting information 341, and the data collection device 4 receives the user's input operation to instruct the collection of physical quantity data D.

First, in step S100, the measurement processing unit 320 of the physical quantity measuring device 3 measures the physical quantity through the physical quantity detector 30 when receiving the interruption signal at the timing (measurement time) according to the sampling condition (the sampling period Sp in this embodiment) based on the statistical value C counted by the timer statistical unit 33, and obtains the physical quantity data D. Then, the measurement processing unit 320 stores the index I and the statistical value C together with the obtained physical quantity data D in the ring buffer data 342. At this time, the measurement processing unit 320 updates the next storage memory address An and the next storage index In.

Whenever the measurement time that meets the sampling condition arrives, the measurement processing unit 320 accumulates the physical quantity data D in the annular buffer data 342 by repeatedly performing the above step S100.

On the other hand, in step S200 , after receiving the user's input operation to instruct the collection of physical quantity data D, the receiving processing unit 400 of the data collection device 4 starts to communicate with the physical quantity measurement device 3 and transmits the data request of the physical quantity data D to the physical quantity measurement device 3 .

Then, in step S110, the transmission processing unit 322 receives the data request from the data collection device 4 and determines whether the transmission condition is met.

Next, in step S111, the transmission processing unit 322 refers to the annular buffer data 342 to obtain a physical quantity data array Dset1 consisting of a plurality of physical quantity data D.

Next, in step S112, the timing processing unit 321 counts and displays the last post-measurement elapsed time Tf, which is the elapsed time since the last physical quantity measurement by the physical quantity detector 30, at the transmission condition sufficient time that satisfies the transmission condition. That is, the timing processing unit 321 counts the elapsed time from the measurement time of the physical quantity data D when the last physical quantity measurement was stored to the transmission condition sufficient time, among the plurality of physical quantity data D included in the physical quantity data array Dset1, as the last post-measurement elapsed time Tf.

Next, in step S113, the transmission processing unit 322 transmits the physical quantity data set Dset1 obtained in step S110 and the time Tf after the last measurement counted in step S112 to the data collection device 4.

Then, in step S210, the receiving processing unit 400 receives the physical quantity data sequence Dset1 and the time Tf after the last measurement from the physical quantity measuring device 3 as a response to the data request transmitted in step S200.

Next, in step S211, the time specification processing unit 401 sends a command indicating reading of the current time Tc to the time measurement unit 41, thereby obtaining the current time Tc measured by the time measurement unit 41.

Then, in step S212, the time-specific processing unit 401 specifies the measurement time Ts for the plurality of physical quantity data D constituting the physical quantity data set Dset1 received in step S210 according to the current time Tc obtained in step S211 and the time Tf after the last measurement received in step S210.

Next, in step S213, the storage processing unit 402 generates a physical quantity data sequence Dset2 with a measurement time by corresponding each physical quantity data D in the physical quantity data sequence Dset1 received in step S210 to the measurement time Ts specified in step S212. Then, the storage processing unit 402 transmits the physical quantity data sequence Dset2 with a measurement time to the data management device 5, and stores it in the database 50 as a storage device.

As described above, a series of processing is terminated. In addition, in the processing (data providing method) implemented by the physical quantity measuring device 3, step S100 is equivalent to the measurement processing process, steps S110 to S111, S112 are equivalent to the timing processing process, and step S113 is equivalent to the transmission processing process. In addition, in the processing (data collecting method) implemented by the data collecting device 4, steps S200 and S210 are equivalent to the receiving processing process, steps S211 and S212 are equivalent to the time specifying processing process, and step S213 is equivalent to the storage processing process.

When the data processing system 1 of the present invention is adopted, the physical quantity measuring device 3 (data processing device 31) transmits the physical quantity data sequence Dset1 which can be constituted by identifiable measurement order of a plurality of physical quantity data D respectively measured by the physical quantity detector 30 under sampling conditions and the time after the last measurement Tf which is the elapsed time since the last measurement of the physical quantity by the physical quantity detector 30 measured by the timer statistics unit 33 to the data collection device. The data collection device specifies the measurement time Ts for the plurality of physical quantity data D constituting the physical quantity data sequence Dset1 according to the current time Tc measured by the time measurement unit 41 and the time after the last measurement Tf. Therefore, instead of setting a real-time clock circuit in the physical quantity measuring device 3 (data processing device 31), the measurement time Ts of each physical quantity data D can be specified in the data collection device 4. (Other implementation forms)

The present invention is not limited to the above-mentioned implementation forms, and various modifications can be made to implement the present invention without departing from the scope of the present invention. All of these are included in the technical concept of the present invention.

The above embodiment describes a case where the data processing device 31 is implemented by the physical quantity measuring device 3 which is a device different from the pump device 2. However, it is also possible to implement the data processing device 31 by building part or all of the functions of the data processing device 31 (especially the functions of the control unit 32) into the pump control board 23 of the pump device 2. In this case, it is only necessary to connect the physical quantity detector 30 and the pump control board 23 by wire or wireless to send and receive various data. In addition, the pump device 2 may also have the physical quantity detector 30.

The above-mentioned embodiment illustrates a case where the physical quantity data sequence Dset1 transmitted by the physical quantity measuring device 3 is transmitted to the data management device 5 as the physical quantity data sequence Dset2 with the measurement time attached by the data collecting device 4, and is stored in the database 50 as the storage device. However, the transmission target device and the storage target storage device of the physical quantity data sequence Dset2 with the measurement time attached may be appropriately changed. For example, the physical quantity data sequence Dset2 with the measurement time attached may also be transmitted to the data management device 5 or the terminal device 6, and may also be stored in the storage device provided in the data collecting device 4 or the terminal device 6.

The above-mentioned embodiment is to explain the case where the physical quantity measuring device 3 (data processing device 31) operates according to the flowchart shown in Fig. 7. However, the execution order of each step may be appropriately changed, and some steps may be omitted.

The above embodiment describes the case where the physical quantity measuring device 3 is installed on the pump device 2, but it can also be installed on various devices such as refrigerators, gas machines, working machines, pressure equipment, conveying equipment, diagnostic equipment, etc. In this case, the physical quantity detector 30 only needs to measure the physical quantities generated by various devices.

1: Data processing system 2: Pump device 3: Physical quantity measurement device 4: Data collection device 5: Data management device 6: Terminal device 7: Network 20: Pump unit 21: Motor 22: Transmission unit 23: Pump control board 30: Physical quantity detector 31: Data processing device 32: Control unit 33: Timer statistics unit 34: Storage unit 35: Communication unit 36: Power supply 40: Control unit 41: Time measurement unit 42: Storage unit 43: Communication unit 44: Input unit 45: Output unit 50: Database 300: Frame 320: Measurement processing unit 321: Timing processing unit 322: Transmission processing unit 340: Data processing program 341: Setting information 342: Circular buffer data 400: Reception processing unit 401: Time-specific processing unit 402: Storage processing unit 420: Data collection program 421: Setting information 900: Computer 910: Bus 912: Processor 914: Memory 916: Input device 917: Output device 918: Display device 920: Storage device 922: Communication I/F (interface) unit 924: External device I/F unit 926: I/O (input and output) device I/F unit 928: Media input and output unit 930: Program 940: Network 950: External device 960: I/O device 970: Media A: Memory address An: Next storage memory address C: Statistical value D: Physical quantity data Dset1, Dset2: Physical quantity data row I: Index In: Next storage index Sp: Sampling period Tc: Current time Tf: Time elapsed after the last measurement Ts: Measurement time

FIG1 is a diagram showing an overall configuration of an example of a data processing system 1. FIG2 is a block diagram showing an example of a physical quantity measuring device 3. FIG3 is a diagram showing a function description of an example of a physical quantity measuring device 3. FIG4 is a block diagram showing an example of a data collection device 4. FIG5 is a diagram showing a function description of an example of a data collection device 4. FIG6 is a diagram showing a hardware configuration of an example of a computer 900 constituting each device. FIG7 is a flowchart showing an example of an operation performed by the physical quantity measuring device 3 (data processing device 31) and the data collection device 4.

4: Data collection device

41: Timing measurement department

400: Receiving and processing department

401: Time-specific processing unit

402: Storage and processing department

C: Statistical value

D: Physical quantity data

Dset1, Dset2: Physical quantity data row

I: Index

Tc: Now

Tf: Time elapsed after the last measurement

Ts: measurement time

Claims (7)

A data processing system comprises: one or more physical quantity measuring devices; and one or more data collection devices, which are configured to communicate with the physical quantity measuring devices; The physical quantity measuring devices comprise: A physical quantity detector, which measures the physical quantity of a measurement object; A storage unit, which stores the physical quantity data of the physical quantity measured by the physical quantity detector in the form of a circular buffer; A timer statistics unit, which calculates statistical values as time passes; A measurement processing unit, which stores the physical quantity data when the physical quantity is measured by the physical quantity detector under specified sampling conditions in the storage unit according to the statistical values calculated by the timer statistics unit; A timing processing unit, which uses the timer statistics unit to count the time elapsed since the physical quantity detector last measured the physical quantity as the time elapsed after the last measurement; and A transmission processing unit, which, when the specified transmission conditions are met, transmits a physical quantity data sequence formed by a plurality of the physical quantity data stored in the storage unit in a measurement order that can identify the physical quantity data, and the time elapsed after the last measurement counted by the timing processing unit to the data collection device; The data collection device comprises: A time measurement unit, which measures the current time; A receiving processing unit, which receives the physical quantity data sequence and the time elapsed after the last measurement from the physical quantity measurement device; A time identification processing unit, which identifies the measurement time when the physical quantity is measured as the physical quantity data for the plurality of physical quantity data constituting the physical quantity data array received by the receiving processing unit, based on the current time measured by the time measurement unit and the time elapsed after the last measurement received by the receiving processing unit; and a storage processing unit, which stores each of the physical quantity data in the physical quantity data array received by the receiving processing unit in correspondence with the measurement time identified by the time identification processing unit in a storage device. As in the data processing system of claim 1, the transmission processing unit transmits the sampling condition together with the physical quantity data array and the time after the last measurement to the data collection device, and the moment identification processing unit identifies the measurement moment for the plurality of physical quantity data constituting the physical quantity data array received by the receiving processing unit according to the current moment measured by the moment measurement unit, the time after the last measurement received by the receiving processing unit, and the sampling condition. A physical quantity measuring device is configured to communicate with a data collection device and comprises: A physical quantity detector, which measures the physical quantity of a measurement object; A storage unit, which stores physical quantity data of the physical quantity measured by the physical quantity detector in the form of a circular buffer; A timer statistics unit, which counts statistical values as time passes; A measurement processing unit, which stores the physical quantity data when the physical quantity is measured by the physical quantity detector under specified sampling conditions based on the statistical values counted by the timer statistics unit in the storage unit; A timing processing unit, which counts the elapsed time from the last measurement of the physical quantity by the physical quantity detector by the timer statistics unit as the elapsed time after the last measurement; and The transmission processing unit transmits the physical quantity data sequence formed by the plurality of physical quantity data stored in the storage unit in an identifiable measurement order of the physical quantity data and the time after the last measurement counted by the timing processing unit to the data collection device when the specified transmission conditions are met. A data collection device is configured to communicate with one or more physical quantity measuring devices and has: A time measurement unit that measures the current time; A receiving and processing unit that receives from the physical quantity measuring device a plurality of physical quantity data when the physical quantity of the measuring object is measured separately under specified sampling conditions, and a physical quantity data column that is configured to identify the measurement order of the physical quantity data, and represents the elapsed time after the last measurement of the physical quantity as the physical quantity data; A time-specific processing unit, which specifies the measurement time when the physical quantity is measured as the physical quantity data for the plurality of physical quantity data constituting the physical quantity data sequence received by the receiving processing unit, based on the current time measured by the time-measurement unit and the time elapsed after the last measurement received by the receiving processing unit; and a storage processing unit, which stores each of the physical quantity data in the physical quantity data sequence received by the receiving processing unit in correspondence with the measurement time specified by the time-specific processing unit in the storage device. A data processing method uses a data processing system to process data. The data processing system has: a physical quantity measuring device, which has: a physical quantity detector, which measures the physical quantity of a measurement object; a storage unit, which stores physical quantity data measured by the physical quantity detector in the form of a circular buffer; a timer statistics unit, which counts statistical values as time passes; and a data collection device, which has a moment measurement unit for measuring the current moment; and can be configured to communicate with the physical quantity measuring device; The physical quantity measuring device is used to: A measurement processing process, which stores the physical quantity data when the physical quantity is measured by the physical quantity detector under the specified sampling conditions in the storage unit according to the statistical value counted by the timer statistical unit; A timing processing process, which counts the elapsed time when the physical quantity detector last measures the physical quantity by the timer statistical unit as the elapsed time after the last measurement; and A transmission processing process, which, when the specified transmission conditions are met, transmits the physical quantity data array formed by the plurality of physical quantity data stored in the storage unit in an identifiable measurement order of the physical quantity data and the elapsed time after the last measurement counted by the timing processing process to the data collection device; The data collection device performs: A receiving processing step, which is to receive the physical quantity data sequence and the time elapsed after the last measurement from the physical quantity measuring device; A time specifying processing step, which is to specify the measurement time when the physical quantity is measured as the physical quantity data for the plurality of physical quantity data constituting the physical quantity data sequence received by the receiving processing step, based on the current time measured by the time measuring unit and the time elapsed after the last measurement received by the receiving processing unit; and A storage processing step, which is to store each physical quantity data in the physical quantity data sequence received by the receiving processing unit in correspondence with the measurement time specified by the time specifying processing unit in the storage device. A data providing method uses a physical quantity measuring device to provide data, wherein the physical quantity measuring device comprises: a physical quantity detector, which measures the physical quantity of a measurement object; a storage unit, which stores the physical quantity data of the physical quantity measured by the physical quantity detector in the form of a circular buffer; and a timer statistics unit, which counts statistical values as time passes and can be configured to communicate with one or more data collection devices, and performs: A measurement processing step, which stores the physical quantity data when the physical quantity is measured by the physical quantity detector under specified sampling conditions in the storage unit according to the statistical values counted by the timer statistics unit; A timing processing step, which uses the timer statistics unit to count the time elapsed when the physical quantity detector last measures the physical quantity as the time elapsed after the last measurement; and A transmission processing step, which, when the specified transmission conditions are met, transmits a physical quantity data array formed by a plurality of the physical quantity data stored in the storage unit in a measurement order that can identify the physical quantity data, and the time elapsed after the last measurement counted by the timing processing step to the data collection device. A data collection method is to collect data using a data collection device, the data collection device having a time measurement unit for measuring the current time, and being configured to communicate with one or more physical quantity measurement devices, and performing: A receiving processing step, which is to receive from the physical quantity measurement device: a physical quantity data column formed by measuring a plurality of physical quantity data of a measurement object under specified sampling conditions, in a measurement order that can identify the physical quantity data, and displaying the elapsed time after the last measurement of the physical quantity as the physical quantity data; A time-specific processing step, which specifies the measurement time when the physical quantity is measured as the physical quantity data for the plurality of physical quantity data constituting the physical quantity data array received by the receiving processing step, based on the current time measured by the time measurement unit and the time elapsed after the last measurement received by the receiving processing step; and A storage processing step, which stores each of the physical quantity data in the physical quantity data array received by the receiving processing step in correspondence with the measurement time specified by the time-specific processing step in the storage device.