Pump device and pump monitoring method

Abstract

To enable a measurement result to be known even without necessarily going to a site while simplifying a system for monitoring a pump.SOLUTION: A pump device includes: a measurement control part 12 for controlling at least a part of the operation of a measurement instrument 10; an identification ID 16 to be given to each measurement control part; a current sensor 13 for measuring a current value of power to be supplied to a drive part of a pump 2 as information; an external communication part 17 for wirelessly transmitting measurement data being measured information together with the identification ID to an external server 31; a measurement body part 20 for storing at least the measurement control part and a portion of the external communication part; and a data control part 32 for storing the measurement data in association with the identification ID in the server, and converting the measurement data into display data 34 displayable in a terminal device 3 used by a user to store it in association with a dedicated address. The display data is displayed by inputting the dedicated address into the terminal device, and pump information can be browsed.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a pump device and a pump monitoring method that measure pump information and enable the information to be viewed on a user's terminal device. [Background technology]

[0002] Conventionally, with the aim of enabling more accurate detection of the operating state of a pump, JP 2021-179177 A discloses a temperature monitoring system comprising one or more first temperature sensors that detect the temperature of a rotating machine device, a first wireless communication device that receives a signal from the first temperature sensor, a second temperature sensor that is spaced apart from the rotating machine device and detects the ambient temperature, a second wireless communication device that is capable of communicating via a radio frequency related to the first wireless communication device, and a determiner that makes a determination regarding the temperature of the rotating machine device based on the output of the first temperature sensor and the output of the second temperature sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-179177 Summary of the Invention [Problem to be solved by the invention]

[0004] In the monitoring system disclosed in Patent Document 1, if Wi-Fi is used as the communication standard, the monitoring system tends to become large-scale. Also, if Bluetooth (registered trademark) is used as the communication standard, it is necessary to carry a terminal device to the vicinity of the pump every time temperature data is acquired.

[0005] The present invention has been made in consideration of the above points, and aims to provide a pump device and a pump monitoring method that simplify the system for monitoring a pump while allowing measurement results to be known without necessarily going to the site. [Means for solving the problem]

[0006] The pump device of the present invention comprises: A pumping device comprising a pump, A pump having a drive unit; A measuring device for measuring information of the pump, The measuring device is A measurement control unit that controls at least a part of the operation of the measuring device; An identification ID assigned to each of the measurement control units; a current sensor for measuring a current value of the power supplied to the driving unit as the information; an external communication unit that wirelessly transmits measurement data, which is the measured information, together with the identification ID to an external server; A measurement main body that stores at least the measurement control unit and a part of the external communication unit; a data control unit that associates the measurement data with the identification ID and stores it in the server, and also converts the measurement data into display data that can be displayed on a terminal device used by a user, and associates the measurement data with a dedicated address and stores it; The display data is displayed by inputting the dedicated address into the terminal device, and information about the pump can be viewed.

[0007] According to the pump device of the present invention, pump information is measured by a measuring device, and the measured values ​​are stored in an external server in association with the measuring device. In addition, the user can view the measured values ​​by inputting a dedicated address from the terminal device that the user uses. In this way, the user can know the status of the pump simply by installing a measuring device on the pump.

[0008] A preferred embodiment of the pump device of the present invention comprises: At least the measurement control unit, the current sensor, and the external communication unit of the measuring device are powered by batteries; The external communication unit transmits the measurement data to the server using LPWA (Low Power Wide Area) communication.

[0009] According to a preferred embodiment of the pump device of the present invention, the power source of the portion of the measuring device that is installed near the site is a battery, which makes it easier to install the measuring device. In addition, since LPWA is used for the external communication section, there is no need to place other communication devices at the site, and the device can operate for a long period of time even if it is powered by a battery.

[0010] A preferred embodiment of the pump device of the present invention comprises: The measurement control unit, The time for measuring the information is within 1 second, Measurements are performed a predetermined number of times at predetermined measurement intervals to accumulate a plurality of pieces of measurement data, and accumulated data is created for each accumulation time. The accumulated data is then transmitted to the server from the external communication unit together with the identification ID.

[0011] According to a preferred embodiment of the pump device of the present invention, the number of transmissions from the external communication unit can be reduced, thereby suppressing battery consumption.

[0012] A preferred embodiment of the pump device of the present invention comprises: The measurement control unit, When the current value of the measurement data is 0 when the information is measured, the measurement is repeated a predetermined number of times until a current value is detected at each abnormal interval time shorter than the measurement interval time; When a current value is detected, the measurement is repeated at each measurement interval until the accumulation time has elapsed.

[0013] According to a preferred embodiment of the pump device of the present invention, it is also possible to accommodate an intermittent pump.

[0014] A preferred embodiment of the pump device of the present invention comprises: The measurement control unit, When the current value of the measurement data is 0 when the information is measured, the measurement is repeated a predetermined number of times until a current value is detected at each abnormal interval time shorter than the measurement interval time; If no current value is detected, measurement is stopped until the accumulation time has elapsed.

[0015] According to a preferred embodiment of the pump device of the present invention, it is possible to reduce unnecessary measurements when the pump is not operating, such as at night.

[0016] A preferred embodiment of the pump device of the present invention comprises: The data control unit: The display data is generated by excluding measurement data with a current value of 0 from the stored data and calculating an average value.

[0017] According to a preferred embodiment of the pump device of the present invention, the average current value can be calculated accurately.

[0018] A preferred embodiment of the pump device of the present invention comprises: The dedicated address is displayed on the measurement main body as a two-dimensional bar code.

[0019] According to a preferred embodiment of the pump device of the present invention, pump information can be obtained simply by reading the two-dimensional barcode using, for example, a mobile terminal equipped with a camera.

[0020] The pump monitoring method of the present invention includes: A pump monitoring method performed using the above pump device, comprising: A preparation step in which the measuring device is sold or loaned from a business entity that provides the measuring device to a user who uses the pump; a connecting step of connecting the current sensor to a power line supplying power to the driving unit; An installation step of installing the measurement main body on a door surface of a control panel, or on the pump or around the pump; a display step of inputting the dedicated address into the terminal device and displaying the display data stored in the server on the terminal device; The present invention is characterized by comprising:

[0021] A preferred embodiment of the pump monitoring method of the present invention comprises the steps of: In the setting step, the measurement main body is set by being attracted to a door surface of the control panel, or to the pump or the vicinity of the pump by a magnet provided on the measurement main body.

[0022] According to these pump monitoring methods of the present invention, it is possible to achieve the same effects as those of the above-mentioned pump device. Effect of the Invention

[0023] As described above, according to the pump device and pump monitoring method of the present invention, the system for monitoring the pump can be simplified, and the measurement results can be known without necessarily going to the site. [Brief description of the drawings]

[0024] [Figure 1] 1 is a schematic diagram illustrating a pump device according to an embodiment of the present invention. [Diagram 2] 4 is a flowchart illustrating the operation of a measurement control unit. [Diagram 3] 1 is a time chart illustrating the ON / OFF timing of a pump and the timing of measurement. [Figure 4] 13 is another flowchart illustrating the operation of the measurement control unit. [Diagram 5] 13 is another time chart illustrating the ON / OFF timing of the pump and the measurement timing. [Figure 6] 13 is another time chart illustrating the ON / OFF timing of the pump and the measurement timing. [Figure 7] 10 is a flowchart illustrating an operation of a data control unit. [Figure 8] FIG. 13 is a diagram illustrating a state in which the measurement main body is installed on a control panel. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pump device 1 and a pump monitoring method according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings. The pump monitoring method according to the present invention is carried out using the pump device 1 according to the present invention.

[0026] First, the configuration of the pump device 1 will be described with reference to Fig. 1. The pump device 1 of this embodiment includes a pump 2 and a measuring device 10. In this embodiment, a pump 2 that transfers liquid is used, and a centrifugal volute pump or the like is adopted. The pump 2 also includes a drive unit (not shown) for rotating an impeller therein, etc. The drive unit may include an electric motor, an air compressor using an electric motor, or the like.

[0027] The measuring device 10 measures information on the pump 2, and includes a slave unit 11 and a server-side device 30. The slave unit 11 includes a measurement control unit 12, a current sensor 13, an identification ID 16, an external communication unit 17, a battery 19, a measuring main unit 20, and an antenna 18, and is installed at the site where the pump 2 is installed, or in the same building or premises (hereinafter, sometimes simply referred to as the "site"). The server-side device 30 includes a server 31, a data control unit 32, and a dedicated address 33, and includes a computer (not shown) connected to the server 31 as necessary. The server-side device 30 can be installed in the building or premises where the slave unit 11 is installed, or in the same company, but in this embodiment, an external server 31 such as a cloud server 31 is used, and the dedicated address 33 and the data control unit 32 are also provided in the external server 31 or a computer connected to the server 31. From these configurations, the measuring device 10 can also be a combination of multiple slave units 11, one server 31, and a data control unit 32. Also, a part of the configuration of the slave device 11 can be incorporated in the server-side device 30, and conversely, a part of the configuration of the server-side device 30 can be incorporated in the slave device 11. Note that the information on the pump 2 includes a current value, vibration, temperature, etc., and in order to measure this information, a vibration sensor 14 for measuring the vibration of the pump 2 and a temperature sensor 15 for measuring the temperature may be added in addition to the current sensor 13.

[0028] The measurement control unit 12 controls the operation of the current sensor 13, the external communication unit 17, etc., and is composed of, for example, a microcomputer and a program for operating the microcomputer. The current sensor 13 measures the current value flowing through the power line 41 that supplies power to the drive unit of the pump 2. The measured current value is treated as measurement data by the measurement control unit 12. The measurement control unit 12 can also accumulate multiple pieces of measurement data to create stored data. When the stored data is created, it is preferable to transmit the stored data, rather than each individual measurement data, via the external communication unit 17. Furthermore, the measurement control unit 12 assigns an identification ID 16 specific to the child unit 11 to the measurement data or stored data, so that it is possible to identify which child unit 11 the measurement data or stored data is from. The identification ID 16 is provided for each measurement control unit 12, and identifies which child unit 11 the measurement data or stored data is from.

[0029] The external communication unit 17 transmits the measurement data or the stored data to the server 31 via an electric communication line 44 such as the Internet or a mobile phone line. Here, LPWA (Low Power Wide Area) communication is used as the electric communication line 44 connecting the external communication unit 17 and the base station 45, and the measurement data or the stored data is transmitted as radio waves from the antenna 18 and transmitted to the server 31 via the base station 45.

[0030] The battery 19 functions as a power source for at least the measurement control unit 12, the current sensor 13, and the external communication unit 17 of the measuring device 10, and in this embodiment, a dry cell 19, which is a general primary battery, is used. Note that the power source does not have to be limited to the dry cell 19, and a secondary battery or a commercial power source can also be used.

[0031] The measurement main body 20 houses the measurement control section 12, the external communication section 17 except for the antenna 18, and the battery 19 (dry cell battery 19), and in this embodiment, a general plastic case is used. The size of this measurement main body 20 is about 6 to 7 cm in width, 11 to 13 cm in height, and 2 to 3 cm in thickness. A magnet (not shown) is provided on the back side of the measurement main body 20, and the measurement main body 20 can be attached by being attracted to a control panel 42 or the like (see FIG. 8).

[0032] The server 31 stores the measurement data or accumulated data transmitted via the telecommunication line 44 and the display data 34 described later, and it is preferable to use an external server 31 such as a cloud server 31. However, the location of the server 31 is not limited to this, and the server 31 can be placed in the same building, on the same premises, or within the same company as the factory where the slave 11 is installed.

[0033] The data control unit 32 processes the measurement data or accumulated data stored in the server 31. The data control unit 32 is stored as a program in the server 31 or in a computer connected to the server 31. There are two main processes performed by the data control unit 32. The first is to determine which child unit 11 the measurement data or accumulated data sent via the telecommunications line 44 came from, based on the identification ID 16 attached to the measurement data or accumulated data, and to manage the data. At this time, it is also possible to create a dedicated address 33 for each child unit 11 using a URL (Uniform Resource Locator), which is an address on the Internet, and to link the measurement data or accumulated data to the dedicated address 33 for management.

[0034] The second is to make the measurement data or stored data for each slave unit 11 into display data 34 that can be viewed by the user's terminal device 3. This is done by extracting, calculating, or graphing the maximum or average current value contained in the measurement data or stored data to create the display data 34, and linking the display data 34 to a dedicated address 33. When the user inputs the dedicated address 33 using a web browser or the like of the terminal device 3 that he or she uses, the user can view the current and past values ​​of the measurement data or stored data as the display data 34. The dedicated address 33 can also be made into a two-dimensional barcode 21 and displayed on the measurement main body 20 of the slave unit 11 (see FIG. 8). Furthermore, in order to accommodate a site where multiple slave units 11 are installed, the measurement data or stored data from multiple slave units 11 may be linked to the same dedicated address 33 in a state in which each slave unit 11 can be identified. Alternatively, a jump button 35 to the dedicated address for another slave unit may be provided. In Figure 1, you are currently looking at information for handset A, which is displayed in a shaded area, but by clicking the button for handset B or handset C with the mouse, you can go to the page with the dedicated address for handset B or handset C.

[0035] Next, in consideration of each component of the pump device 1 of the present embodiment described above, the operation of the pump device 1 will be described with reference to FIGS.

[0036] [First embodiment] First, a basic embodiment of a method for measuring a current value as information will be described with reference to Figs. 2 and 3. Here, as shown in Fig. 3, the pump 2 is always in operation and in an ON state. The arrows on the time axis in Fig. 3 indicate the timing for measuring the current value (the same applies to other time charts). The operation of each component shown in the flowchart in Fig. 2 is mainly controlled by the measurement control unit 12. In the measurement method of this embodiment, in order to reduce consumption of the battery 19, measurement data is accumulated multiple times to create accumulated data, and the accumulated data is transmitted to the server 31 using the external communication unit 17. A detailed description will be given below.

[0037] First, when the slave unit 11 is turned on and measurement is started (S1000), a measurement interval of, for example, 10 minutes is set, and the slave unit 11 waits until the measurement interval has elapsed (S1010, up to 10 minutes in FIG. 3). Next, the measurement control unit 12 and the current sensor 13 measure the current value (information) supplied to the driving unit of the pump 2 (S1020, 10 minutes in FIG. 3), and the current value (information) is stored as measurement data including information such as the measurement date and time (S1030). At this time, the measurement time measured by the current sensor 13 is within 1 second. Regarding this measurement time, for example, in order to suppress consumption of the battery 19, the measurement can be completed within one cycle time of the measurement program that controls the measurement control unit 12. On the other hand, if it is desired to measure a value with a certain degree of accuracy, it is also possible to continue measurement for each cycle time of the measurement program within 1 second and take the average value (similar to other embodiments).

[0038] Next, it is determined whether the measurement has been repeated a predetermined number of times or the accumulation time has elapsed (S1040). In this embodiment, for example, the number of measurements is six and the accumulation time is 60 minutes, so the process returns to S1010 and waits until the measurement interval time of 10 minutes has elapsed. Next, S1020 to S1040 to S1010 are repeated, and when it is determined in S1040 that the measurement has been repeated a predetermined number of times or the accumulation time has elapsed, accumulated data is created from the accumulated measurement data (S1050, when it is 60 minutes in FIG. 3). This accumulated data includes the measurement data accumulated up to that point. Next, the created accumulated data is transmitted to the server 31 via the base station 45 using the external communication unit 17 (S1060). At this time, the identification ID 16 unique to the child device 11 is attached to the accumulated data and transmitted. Then, the transmitted accumulated data is discarded by the measurement control unit 12 (the transmitted accumulated data is discarded by the measurement control unit 12 in the same manner as in other embodiments).

[0039] By repeating this process, in this embodiment, six measurement data sets taken every 10 minutes are compiled as accumulated data and transmitted to the server 31 every 60 minutes. In addition, in the pump device 1 of this embodiment, since LPWA is used for the electric communication line 44, the amount of accumulated data is set to 12 bytes or less (this is the same in other embodiments). In the flowchart of FIG. 2, the device waits until a measurement interval of 10 minutes has elapsed since the child device 11 was powered on, but the first measurement may be performed immediately after the child device 11 is powered on (this is the same in other embodiments).

[0040] [Second embodiment] Next, another embodiment of the method for measuring the current value will be described with reference to Fig. 4 to Fig. 6. Fig. 5 shows a state in which the pump 2 is operating intermittently, Fig. 5(A) shows a time chart in the case where the measurement method of the first embodiment is used for the intermittently operating pump 2, and Fig. 5(B) shows a time chart in the case where the measurement method of this embodiment is used. Fig. 6 shows a state in which the pump 2 is stopped at night or on a holiday.

[0041] First, referring to Fig. 5(A), a case where the measurement method of the first embodiment is applied to an intermittently operating pump 2 will be described. Here, it is assumed that the pump 2 is repeatedly ON for 2 minutes and OFF for 6 minutes, for example. In this case, even if the current value is measured at every measurement interval of 10 minutes, there is a risk that measurements will continue when the pump 2 is OFF. As a result, the current value will remain at 0, and it may become unclear whether the pump 2 is operating or not. It is assumed here that the current value is 0 at the rising and falling points of the waveform of the pump 2.

[0042] In this embodiment, in order to avoid such a state, control is adopted in which, when the measured value (current value) is 0, measurement is performed at abnormal interval times, which are shorter than the measurement interval time. Furthermore, when the abnormal interval time is adopted, repeated measurement while the pump 2 is always off, as shown in FIG. 6, may result in the consumption of the battery 19. For this reason, when no current value is detected even after multiple measurements at abnormal interval times are repeated, control is adopted in which no measurement is performed until the accumulation time has elapsed. These are described in detail below.

[0043] A normal measurement flow will be described first with reference to the flowchart shown in FIG. 4. This is partially the same as the first embodiment described above, so the overlapping parts will be described briefly. When the slave unit 11 is turned on (S2000), it waits until the measurement interval time has elapsed (S2010). Next, the measurement control unit 12 and the current sensor 13 measure the current value (information) supplied to the drive unit of the pump 2 (S2020). Next, it is determined whether the value of the measured measurement data (current value) is 0 or not (S2025). Here, if the value of the measurement data is not 0 and a current value is detected, information such as the measurement date and time is added to the data and accumulated as measurement data (S2030). Next, it is determined whether the measurement has been repeated a predetermined number of times or the accumulation time has elapsed (S2040). If the condition is not met here, the process returns to S2010. On the other hand, if the condition is met in S2040, accumulated data is created from the accumulated measurement data (S2050). Next, the created stored data is transmitted to the server 31 via the base station 45 using the external communication unit 17 (S2060).

[0044] Next, a case where the value of the measurement data (current value) measured in S2025 is 0 will be described. When the current value is 0 (at 10 minutes in FIG. 5B), it is determined whether the accumulation time has elapsed (S2070). In this case, the accumulation time is 60 minutes, so it has not yet elapsed. Therefore, it is determined whether the state where the measurement data value is 0 has occurred a predetermined number of times in succession (S2080). In this case, for example, if the predetermined number is 7 times, since it has not yet occurred 7 times in succession, the immediately preceding measurement data, which is 0, is discarded and the system waits until the abnormal interval time, which is set to, for example, 1 minute, has elapsed (S2090). When the abnormal interval time has elapsed, the system returns to S2020 and measures again to obtain measurement data (at 11 minutes in FIG. 5B). Here, the current value is also 0, so S2025 to S2090 to S2020 are repeated. After S2025 to S2090 to S2020 are repeated, it is assumed that a current value other than 0 is measured at 15 minutes in FIG. 5B (S2025). Then, the flow proceeds to the flow from S2030 onwards, which has already been explained. Then, the flow waits until the next measurement interval has elapsed, and the next measurement is performed (25 minutes in FIG. 5(B)). Note that, if it is determined in S2070 that the accumulation time has elapsed, the flow proceeds to S2050, and accumulated data is created.

[0045] Next, as shown in FIG. 6, the measurement flow will be described in a state where the pump 2 is stopped at night or on a holiday. Suppose that S2080 in FIG. 4 is repeated a predetermined number of times, for example, seven times here, and all the current values, which are the measurement data, are 0 (16 minutes in the upper part of FIG. 6). Then, no further measurements are taken and the system waits until an accumulation time of 60 minutes has elapsed (S2100). When the accumulation time has elapsed, accumulated data is created from the measurement data (S2050), and the accumulated data is sent to the server 31 (S2060, 60 minutes in FIG. 6). The accumulated data at this time consists of one measurement data with a current value of 0 and an identification ID 16 specific to the child device 11. Next, the system returns to S2010 and repeats the same flow (see the lower part of FIG. 6).

[0046] In addition, the determination as to whether the accumulation time has elapsed may be made, for example, by providing a separate subroutine during standby in S2010 or S2090, in which the determination as to whether the accumulation time has elapsed is made, and if the accumulation time has elapsed, the process may jump to S2050.

[0047] Next, referring to FIG. 7, a flow for creating display data 34 from accumulated data stored in server 31 will be described. The process here is mainly performed by data control unit 32. First, accumulated data is transmitted from external communication unit 17 of child device 11 to server 31 via base station 45, and the process is started (S3000). Next, it is determined whether there is measurement data whose value (current value) is 0 in the accumulated data (S3010). Here, if all the measurement data are not 0, that is, if values ​​that are determined to indicate that pump 2 is operating are measured in all the measurement data, the average value, maximum value, and minimum value of the measurement data for each accumulated data are calculated (S3040). Here, since the accumulated data is transmitted every accumulation time of about 60 minutes, the average value, maximum value, and minimum value for each hour are calculated. Then, based on the calculated values, display data 34 that can be displayed on terminal device 3 in FIG. 1 is created (S3050). Here, not only can hourly average, maximum and minimum values ​​be displayed numerically and graphically, but also bar graphs can be created for each hour, day or month, and the cumulative total of power consumption for a given period such as yesterday and today can be displayed. This display data 34 is linked to a dedicated address 33 represented by a URL, and the user can view it by inputting the URL into the terminal device 3 they use.

[0048] Next, the process when there is measurement data with a value of 0 in the stored data in S3010 will be described. When there is measurement data with a value of 0, it is then determined whether all of the measurement data is 0 (S3020). Here, if only some of the measurement data has a value of 0, the measurement data with a value of 0 is deleted (S3030). Then, the process proceeds to S3040 and S3050 already described. On the other hand, if all of the measurement data is 0 in S3020, a process is performed to set the average value, maximum value, and minimum value of the measurement data for each stored data to 0 (S3060). Then, the process proceeds to S3050 to create display data 34.

[0049] Next, an embodiment of a pump monitoring method will be described with reference to Fig. 8. The pump monitoring method of this embodiment includes a preparation step, a connection step, an installation step, and a display step. In the pump monitoring method of this embodiment, a measuring device 10 including a slave device 11 and a server 31 is provided to a user by a business providing the pump monitoring method through a method such as sale or rental. Then, a pump 2 equipped with a drive unit and a terminal device 3 used by the user become the property or managed of the user who receives a service from the business.

[0050] In the preparation step, a business entity that provides the measuring device 10 sells or lends the measuring device 10 to a user who uses the pump 2.

[0051] The connection step is to connect the current sensor 13 of the slave unit 11 to the power line 41 of the control panel 42 that supplies power to the drive unit of the pump 2. Since an AC power source 40 is used here, the power line 41 is simply sandwiched between the core of the current sensor 13.

[0052] The installation step is to install the measurement main body 20 on the door surface of the control panel 42. At this time, the measurement main body 20 can be easily installed by using a magnet provided on the back surface of the measurement main body 20. However, the measurement main body 20 can be installed on the door surface using various methods other than the magnet, such as adhesive, adhesive tape, screws, hooks, etc. The above connection step and installation step may be performed in the reverse order.

[0053] In another embodiment of the connecting step and the installing step, the connecting step can connect the current sensor 13 to the power line 41 around the pump, and the slave unit 11 can be installed in the pump 2 itself or around the pump. Here, the surroundings of the pump include the body of the electric motor which is the driving part, and a housing surrounding the pump 2 and the electric motor. By installing in this manner, the correspondence between the pump 2 and the slave unit 11 becomes clearer, and the information on the pump 2 can be easily known by reading the two-dimensional barcode 21 displayed on the slave unit 11 with a mobile terminal or the like.

[0054] Next, the user uses the terminal device 3 to input the dedicated address 33 assigned to each slave unit 11 (measurement control unit 12) into a web browser or the like to display display data 34 including the current value (see FIG. 1). This dedicated address 33 can be easily read by reading the two-dimensional barcode 21 displayed on the measurement main unit 20 of the slave unit 11. In addition, when the terminal device 3 is a desktop computer, the display data 34 can be displayed at any time by registering the dedicated address 33 in the "favorites" of the web browser.

[0055] As described above, according to the pump device 1 and the pump monitoring method of the present embodiment, the slave unit 11 to which the identification ID 16 is assigned in advance is used, and the display data 34 is stored in the server 31 in association with the dedicated address 33 corresponding to the identification ID 16. Therefore, the user only needs to install the current sensor 13 of the slave unit 11 on the power line 41 to the pump 2 and place the slave unit 11 in the vicinity of the current sensor 13, completing the installation of the measuring device 10 and immediately viewing information such as the current value. In particular, by displaying the dedicated address 33 on the measurement main unit 20 of the slave unit 11 as a two-dimensional barcode 21, the current value can be more easily viewed by photographing the two-dimensional barcode 21 with a mobile terminal or the like. In addition, since the power source of the slave unit 11 is the dry cell 19, construction of the power line of the slave unit 11 is not required, and the battery 19 can be quickly replaced when it is exhausted. Furthermore, the magnet provided in the measurement main unit 20 makes it very easy to install the measurement main unit 20.

[0056] Moreover, LPWA is used for the external communication unit 17, and multiple measurement data are collected as accumulated data and transmitted to the server 31 for each accumulation time. This allows the handset 11 to save power and reduce consumption of the battery 19. For example, in the handset 11 according to this embodiment, when the measurement interval time is 10 minutes and the accumulation time is 60 minutes, battery replacement is often not required for more than half a year, even though the handset 11 uses several AA batteries.

[0057] Furthermore, when the current value of the measurement data is 0, the measurement is repeated a predetermined number of times for each abnormal interval time, so that by appropriately setting the abnormal interval time and the number of repetitions, it is possible to accommodate various intermittent operation of the pump 2. Furthermore, when the current value is still 0 even after the measurement for each abnormal interval time is repeated a predetermined number of times, the system waits until the accumulation time has elapsed, so that it is possible to reduce consumption of the battery 19 of the slave unit 11 when the pump 2 is not operating, such as at night or on holidays.

[0058] In addition, since the data control unit 32 calculates the average value and minimum value from the accumulated data excluding measurement data where the current value is zero, numbers close to the actual values ​​can be displayed on the terminal device 3 even for a pump 2 that is operating intermittently.

[0059] The pump device and pump monitoring method of this embodiment are particularly effective in a field where 10 or less pumps 2 are in operation. This is because introducing equipment using Wi-Fi for several pumps would require the installation of a gateway, which would tend to result in a large-scale installation and would increase the introduction costs. On the other hand, in this embodiment, pump information can be viewed simply by installing the slave unit 11, allowing for rapid introduction while keeping introduction costs down.

[0060] The above-described embodiments of the pump device and the pump monitoring method are merely examples of the present invention, and the configurations thereof can be modified as appropriate without departing from the spirit of the invention. [Explanation of symbols]

[0061] 1 Pump device, 2 Pump, 3 Terminal equipment, 10 measuring device, 11 child device, 12 measurement control unit, 13 current sensor, 14 vibration sensor, 15 temperature sensor, 16 identification ID, 17 external communication unit, 18 antenna, 19 battery, 20 measurement main unit, 21 two-dimensional barcode, 30 server side device, 31 server, 32 data control unit, 33 dedicated address, 34 display data, 35 jump button, 40 AC power supply, 41 power line, 42 control panel, 43 door, 44 telecommunication line, 45 base station,

Claims

1. A pumping device comprising a pump, A pump having a drive unit; A measuring device for measuring information of the pump, The measuring device is A measurement control unit that controls at least a part of the operation of the measuring device; An identification ID given to each of the measurement control units; a current sensor for measuring a current value of the power supplied to the driving unit as the information; an external communication unit that wirelessly transmits measurement data, which is the measured information, together with the identification ID to an external server; A measurement main body that stores at least the measurement control unit and a part of the external communication unit; a data control unit that associates the measurement data with the identification ID and stores it in the server, and also converts the measurement data into display data that can be displayed on a terminal device used by a user, and associates the measurement data with a dedicated address and stores it; A pump device characterized in that the display data is displayed by inputting the dedicated address into the terminal device, and information about the pump can be viewed.

2. At least the measurement control unit, the current sensor, and the external communication unit of the measuring device are powered by batteries; The pump device according to claim 1 , wherein the external communication unit transmits the measurement data to the server using LPWA (Low Power Wide Area) communication.

3. The measurement control unit, The time for measuring the information is within 1 second, The pump device according to claim 2, wherein measurements are performed a predetermined number of times at a predetermined measurement interval time, a plurality of measurement data are accumulated, and accumulated data is created for each accumulation time, and the accumulated data is transmitted to the server from the external communication unit together with the identification ID.

4. The measurement control unit, When the current value of the measurement data is zero when the information is measured, the measurement is repeated a predetermined number of times until a current value is detected at each abnormal interval time shorter than the measurement interval time; 4. The pump device according to claim 3, wherein when a current value is detected, measurement is repeated at each measurement interval until the accumulation time has elapsed.

5. The measurement control unit, When the current value of the measurement data is zero when the information is measured, the measurement is repeated a predetermined number of times until a current value is detected at each abnormal interval time shorter than the measurement interval time; 5. The pump device according to claim 4, wherein when no current value is detected, measurement is suspended until the accumulation time has elapsed.

6. The data control unit:

6. The pump device according to claim 5, wherein the display data is generated by excluding measurement data having a current value of 0 from the accumulated data and calculating an average value.

7. The pump device according to claim 6, wherein the dedicated address is displayed on the measurement main body as a two-dimensional bar code.

8. A pump monitoring method using the pump device according to any one of claims 1 to 7, comprising the steps of: A preparation step in which the measuring device is sold or loaned from a business entity that provides the measuring device to a user who uses the pump; a connecting step of connecting the current sensor to a power line supplying power to the driving unit; An installation step of installing the measurement main body on a door surface of a control panel, or on the pump or around the pump; a display step of inputting the dedicated address into the terminal device and displaying the display data stored in the server on the terminal device; A pump monitoring method comprising:

9. 9. The pump monitoring method according to claim 8, wherein in the installation step, the measurement main body is installed by being attracted to a door surface of the control panel, or to the pump or to the vicinity of the pump by a magnet provided on the measurement main body.

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