KR102495230B1 - Counter terminal to check the number of communication outputs - Google Patents

Abstract

The present invention relates to a counter terminal for checking the number of communication output, which is to accurately check a conflict cause on a battery and a digital water meter through a counter terminal checking the number of the communication output for checking an error cause of the battery and the digital water meter by checking display of the number of the communication output from PCB development of the digital water meter to the stop of the battery by connecting a cable and a TTL communication line of the digital water meter when the battery of the digital water meter is off, wherein the digital water meter outputs the TTL communication output for remote metering. The counter terminal for checking the number of communication output includes: communication cables (51a, 51b) connected to a transmitting and receiving unit (11) transmitting information, which is measured by the digital water meter (10) metering the amount of the water used by a user through a water pipe, to the outside; a meter connection unit (51) receiving basic data and history data on the digital water meter (10) including the communication output number from a production day of the digital water meter (10) stored in the digital water meter (10) by connecting to the digital water meter (10) through the communication cables (51a, 51b); and a display unit (53) displaying the basic data and the history data including the communication output number from the production day of the digital water meter (10) transmitted from the digital water meter (10) through the meter connection unit (51).

Description

Counter terminal to check the number of communication outputs}

The present invention relates to a counter terminal that checks the number of communication outputs, and more particularly, to a digital water meter that sends out a TTL communication output for remote meter reading, when the battery of the digital water meter is stopped, the TTL communication line of the digital water meter It relates to a counter terminal for checking the number of communication outputs that can confirm the cause of error of a digital water meter or battery by connecting through a cable and checking the display of the number of communication outputs from the development of the corresponding digital water meter PCB to the battery shutdown.

In general, tap water is treated at a water purification plant and then supplied through large pipes in each district in the case of cities, and is classified into medium blocks and small blocks in each district to supply tap water. In addition, a flow meter is installed between each distribution point to measure the flow rate of tap water supplied to the distribution area. For example, in large-scale facilities such as apartment complexes, water supply pipes are installed to supply tap water through large pipelines, and in general homes and commercial buildings, large pipelines buried under roads are connected to small pipelines to provide the final destination. It is designed to supply tap water to consumers.

Such pipelines are managed by local governments, and the indoor piping part is the responsibility of each consumer. However, since each consumer does not have any means for detecting whether or not there is water leakage indoors, it is difficult for most consumers to recognize whether or not water leakage has occurred.

The method for determining the cause of the leak mainly relies on human resources to recognize and determine the situation, resulting in significant loss of time and economic cost, and confusion due to failure and malfunction of the sensor even in the case of determining a crisis situation through sensor installation. However, there was a problem that additional maintenance problems occurred.

On the other hand, since the sensitivity of the conventional water meter is reduced due to the excessive load of the gear set, when the flow rate of tap water passing through the meter is minute, it cannot be detected and precise metering cannot be achieved. Instantaneous reverse flow of tap water occurs, but not only can this not be detected, but if the water meter is installed in the reverse direction, it is impossible to measure the flow rate, making it difficult to collect reasonable water charges. There were flaws that I couldn't figure out.

In order to solve this problem, recently, digital water meters are used, and remote meter reading is applied to measure usage in real time from digital water meters to produce data, and the collected data is transmitted to water service providers through a communication network, In order to achieve effects such as water consumption reduction, water leakage management, supply and demand control, and energy saving using remote meter reading, a technology has been developed that continuously transmits continuous meter reading values to the operating system and analyzes the collected data.

That is, a digital water meter capable of transmitting the meter reading value of the water meter to a remote meter reading unit through wired/wireless communication has been developed. However, as these digital water meters and remote meter reading units are individually developed and commercialized, it is difficult to seamlessly link these products together. That is, digital water meters and remote meter reading units have different installation locations, replacement cycles, and manufacturers, so problems such as security, power distribution, and compatibility continue to occur.

In addition, it is virtually impossible to frequently inspect each indoor (household) water meter, and in reality, due to the lack of inspection personnel, there is no choice but to directly check for water leakage every 1 month to 3 months, so water leakage that occurs for several months It is difficult to prevent damage caused by In addition, there is a problem in that it is not easy for each user in the house to directly check whether there is water leakage. For example, in order to determine abnormal signs with a leak alarm using a digital water meter, based on the firmware of the indicator in the digital water meter, whether or not the cumulative use of 1L or more for 1 hour is determined, and more than 7 days based on the firmware of the indicator in the digital water meter The digital water meter may notify the meter status information (leakage) alarm when it continuously determines whether water is used or not, and when the two conditions are satisfied, the digital indicator firmware in the digital water meter operates once an hour and the lower blade of the meter operates. (Impella) The usage is calculated by inspecting the usage through the cumulative count of revolutions, so if the water usage within 1 hour is “0”, even though it is not a leak, if the accumulated usage exceeds 1L, the condition is met, so it is difficult to determine whether or not water is leaked. could be an error.

In addition, when the winter season lasts for more than two days in which the temperature drops below minus 5 degrees Celsius in winter in water supply facilities, a freeze-up phenomenon in which related facilities exposed to the outside air freeze and explode frequently occurs. The previous stage of this freeze phenomenon is that the water pipe starts to freeze somewhere and the flow of water is cut off. If water does not come out, emergency measures are needed to make it usable immediately. Use cloth, old clothes, cloth, etc. to prevent freezing and bursting.

One example of a technique for solving this problem is disclosed in Documents 1 to 3 and the like.

For example, Patent Document 1 below includes a digital water meter that counts water usage and a remote meter reading unit that receives data counted from the digital water meter through wired/wireless communication and transmits it to a server via a gateway, The water meter is installed in a meter box, and includes a housing having an inlet and an outlet, an impeller installed to be rotatable by tap water transported through the inlet and outlet, a permanent magnet that rotates in conjunction with the rotation of the impeller, and the permanent magnet. A magnetic sensing unit provided with a magnetic sensor for detecting a change in the magnetic field according to the rotation of the magnetic sensing unit, a display unit displaying the change in the magnetic field detected by the magnetic sensing unit as a flow rate, and supplying power to the display unit when the meter box is opened Disclosed is a remote water metering system including a light amount detection unit provided with an illuminance sensor that detects a change in light amount in the meter box and a control unit that controls the magnetic sensing unit, the display unit, and the light amount detection unit, respectively.

In addition, in Patent Document 2, as shown in FIG. 1, a water supply pipe provided in the protective container, a digital meter 10 for measuring the amount of water used by the user through the water supply pipe in the protective container, and the temperature in the protective container A temperature sensor 21 for detecting, an interface unit 22 connected to the digital meter 10 by wire, a display unit 23 for displaying the metering data of the digital meter 10 so that a inspector can check, A control unit 24 that manages the temperature information detected by the temperature sensor 21 and the measurement data, and a wireless communication module 25 that transmits the temperature information and measurement data of the water supply pipe from the control unit 24 to the repeater. Disclosed is a wireless communication terminal system having a wireless communication terminal 20 including a power supply unit 26 supplying power necessary for the display 23, the control unit 24 and the wireless communication module 25.

On the other hand, in Patent Document 3 below, a meter reading unit installed in the meter body to read the flow rate supplied through the water supply pipe, a sensing unit installed in the meter body to detect vibration transmitted through the water supply pipe, and detection by the sensing unit A conversion unit that converts the vibration into an electrical signal, a frequency analysis unit that analyzes the frequency components of the electrical signal converted by the conversion unit, and comparing and checking whether each frequency component of the analyzed electrical signal rises above a preset level. A comparison and processing unit for performing a comparison and processing unit, a determination control unit for calculating a leak probability based on the result of the comparison and processing unit, and an output unit for outputting the determination result of the determination control unit to at least one of a video signal and an audio signal For a water supply meter including has been initiated.

In addition, Patent Document 4 below is a smart metering-based indoor water leakage detection system that verifies water leakage by flexibly changing the remote meter reading cycle after selecting a suspected water leakage target, which measures the amount of water used by a user through a water supply pipe in a protective container. A digital meter, a wireless communication terminal that transmits information measured by the digital meter to a repeater provided outside the protective container, a user terminal such as a user at home or a manager of a building where the water supply pipe is provided, information about the user, the digital It is connected to the wireless communication terminal and the user terminal through a database and the repeater that stores metering information measured by the meter and information on the wireless communication terminal, and leak state information to the user terminal according to the information transmitted from the wireless communication terminal. A smart metering-based indoor water leakage detection system including a water leakage management module for managing information on an indoor water leakage state by verifying water leakage by flexibly changing a remote meter reading cycle, wherein the management server discloses a water leakage detection system has been

However, the above-described Prior Patent Documents 1-3 mainly describe only the advantages of remote meter reading, and Prior Patent Document 4 shows that the indoor water leakage state of a consumer can be accurately detected by verifying water leakage by flexibly changing the remote meter reading cycle. However, as various sensors were added and the communication cycle (remote meter reading cycle) was flexibly changed, the battery of the digital water meter was discharged early, making it difficult to precisely match the most important remote meter reading cycle. In particular, when the digital water meter company and the remote meter reader and remote terminal company are different, there was a problem that a dispute occurred.

In other words, the water supply business headquarters of each city and province The meter (small digital water meter) delivered to the facility management office of the waterworks project headquarters is to be delivered with products that have been confirmed and approved by the relevant city, and managed through specifications. These specifications basically describe product specifications such as flow rate part specifications, electronic device specifications, communication specifications and structures, materials and performance of water meters. Among them, the communication specifications and structure for remote meter reading are,

In the case of Daegu City,

'(1) The water meter must transmit data to the outside by TTL UART communication method.

(2) The water meter has a built-in circuit for wired communication, and 3 wires (TX white, RX yellow, GND black) communication lines (water meter→remote meter reading terminal, remote meter reading terminal→water meter, signal ground) are connected to the remote meter reading terminal. should be wired with

(3) The water meter must be designed so that it is impossible to manipulate reading values and reset integration guidelines by external magnetic fields or electric signals.

(4) The supplier must reflect the communication protocol presented by Daegu City for compatibility with remote meter reading terminals and promotion of remote meter reading business in the future.

(5) The basic length of the cable should be 2 m, but it should be able to communicate even with a longer length, and it should be 99.9% consistent with the accumulated value of the water meter.

(6) The communication cycle (meter reading cycle) between the water meter and the remote meter reading terminal is based on once per hour, but it must be adjustable.'

Accordingly, the water metering company makes it 24 times a day, once an hour, and the water meter calculates the power used 24 times a day and selects a PCB driving battery.

That is, water metering companies, in order to transmit TTL communication output for remote meter reading,

Low-power operating state: Low-power state in which water does not flow for 12 hours out of 24 hours a day - Average current consumption in low-power operating state: A uA

Maximum flow operation state: Maximum flow water flow for 12 hours out of 24 hours a day - Average current consumption in maximum flow operation state: B uA

External meter reading command cycle: 1 hour (meter reading 24 times a day, design specifications) - Average current consumption and response time of response to external meter reading command: Set based on C uA, D ms (if applied) to calculate battery capacity,

Average current consumption of water meter x 9 years ( 78,840 [hours])

In case of communication function with external meter, battery consumption per day = A [uA] x 12 [hour] + B [uA] x 12 [hour] + C [uA] x D [1/3600000 hour] x 24

If there is no communication function with an external meter, battery consumption per day = A [uA] x 12 [hour] + B [uA] x 12 [hour]

Battery consumption for 9 years = E mAh x 365 [day/year] x 9 [year].

Accordingly, the current consumption is 7.76 uA in the low power operating state, and the current consumption is 29.21 uA in the maximum flow operating state. At this time, when the communication signal is output with an external meter, the current consumption is 893.79 uA and the response time is 869 ms. If the daily consumption capacity is calculated by checking the current consumption, 7.7685692 [uA] x 12 [hour] + 29.213148 [uA] x 12 [hour] + 893.7917 [uA] x 869 [1/3600000 hour] x 24 (times) = 448.95864 [uAh], and the expected battery consumption for 9 years is 448.95864 [uAh] x 365 [day/year] x 9 [year] = 1474.829 [mAh].

Therefore, the battery used in the digital water meter is 3.6V / 3650mAh, the standard capacity is 3000mAh @18.70 uA, and considering self-discharge, the actual battery capacity that can be supplied is 3000 [mAh] x (1 - 0.03 x 9) = 2190 [mAh].

Accordingly, the product produced and sold is the battery's 9-year consumption capacity = 1474.829 [mAh], and the actual supplied capacity including the battery's self-discharge = 2190 [mAh], so in the case of a 2190 [mAh] battery, power for 9 years It can be seen that is sufficiently supplied (2190 - 1475 = 715mAh).

However, when a system company arbitrarily uses the basic number of communications (24 times a day) to take advantage of the company's strengths, for example, when multiple communications are used from once an hour to 6 times an hour, the digital water meter It can be seen that the designed 9-year request cannot be met.

Unlike the fundamentally designed method, a situation in which the battery capacity of the digital water meter becomes 0 may occur due to incorrect use (communication overload) by the system manufacturer.

That is, unlike water meter manufacturers, remote meter readers and remote terminal manufacturers receive communications 24 times a day, but depending on circumstances, there are cases in which a situation is set to transmit communications more than 144 times a day.

As a result, the consumption of the battery increases up to 6 times, resulting in a phenomenon in which the battery is stopped. Therefore, remote meter and remote terminal companies are in a position to pass on their problems to water metering companies, so it is necessary to solve this problem.

Republic of Korea Patent Registration No. 10-2163022 (registered on September 28, 2020) Republic of Korea Patent Registration No. 10-2008089 (registered on July 31, 2019) Republic of Korea Patent Registration No. 10-1627793 (Registration on 2016.05.31) Republic of Korea Patent Registration No. 10-2193382 (registered on December 15, 2020)

The present invention has been proposed to solve the above conventional problems, and for a digital water meter that is supposed to send out a TTL communication output for remote meter reading, the TTL of the digital water meter when the battery of the digital water meter is turned off By connecting through communication lines and cables and checking the display of the number of communication outputs from the development of the corresponding digital water meter PCB to the battery shutdown, digital water supply through a counter terminal that checks the number of communication outputs that can identify the cause of the error of the digital water meter or battery The purpose of the present invention is to provide a counter terminal for checking the number of communication outputs that can accurately determine the cause of the dispute about the meter and battery.

The present invention for achieving the above object is a communication cable (51a) connected to the transceiver 11 for transmitting the information measured by the digital water meter 10 for measuring the amount of water used by the user through the water supply pipe to the outside, 51 b); The digital water meter 10 is connected to the digital water meter 10 through the communication cables 51a and 51b and includes the number of communication outputs from the production date of the digital water meter 10 stored inside the digital water meter 10. a water meter connection unit 51 receiving basic data and history data of the water meter 10; and a display unit 53 that displays basic data and history data including the number of communication outputs from the production date of the digital water meter 10 transmitted from the digital water meter 10 through the meter connection unit 51. It provides a counter terminal for checking the number of communication outputs, characterized in that it is configured to include;

Here, the counter terminal for checking the number of communication outputs stores history data including the number of communication outputs from the production date of the digital water meter 10 transmitted from the digital water meter 10 through the meter connection unit 51. It is characterized in that it is configured to further include a memory unit 54 and a control button unit 52 for controlling the operation of the counter terminal.

In addition, the history data includes the total number of communication outputs of the digital water meter 10, the standard of the digital water meter 10, the total usage of the digital water meter 10, the TTL communication version of the digital water meter 10, It is characterized in that it includes the item number of the digital water meter (10).

Meanwhile, the digital water meter 10 includes the total number of communication outputs of the digital water meter 10, the standard of the digital water meter 10, the total usage of the digital water meter 10, and the TTL communication version, characterized in that it is configured to include a memory unit 14 in which the item number of the digital water meter 10 is stored.

The present invention made in this way has the following effects.

First, by identifying the cause of the digital water meter's battery being turned off, it is possible to accurately identify problems that may occur between the digital water meter company and the remote meter and remote terminal companies.

Second, by identifying the cause of the battery OFF of the digital water meter, if there is a problem with the remote meter reading, it is possible to know exactly whether the problem is the digital water meter, the remote meter, or the remote terminal. And it is possible to accurately determine the device in which the problem occurred among the remote terminals, so that disputes can be accurately resolved and the problem can be solved accurately.

1 is a block diagram for explaining a counter terminal for checking the number of communication outputs according to a first embodiment of the present invention;
2 is a block diagram for explaining a counter terminal for checking the number of communication outputs according to a second embodiment of the present invention;
3 is a diagram for explaining an example of signal level and voltage level ranges between a digital water meter and a remote meter reading terminal;
4 is a diagram for explaining an example of data transmitted from a digital water meter to a remote meter reading terminal;
5 and 6 are diagrams showing an embodiment in which a counter terminal for checking the number of communication outputs according to the present invention is implemented;
7 is a diagram for explaining an example of using a counter terminal for checking the number of communication outputs according to the present invention;
8 is a diagram for explaining a communication output count check counter system according to the present invention;
9 is a diagram showing an embodiment in which the communication output count check counter system according to the present invention is connected to a laptop computer and checked by a program.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment according to the present invention will be described in detail.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the examples described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members are sometimes indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that may unnecessarily obscure the subject matter of the present invention are omitted.

1 is a block diagram illustrating a counter terminal for checking the number of communication outputs according to a first embodiment of the present invention.

As shown in FIG. 1, the counter terminal for checking the number of communication outputs according to the first embodiment of the present invention sends the detected data measured by the digital water meter 10 that measures the amount of water used by the user through the water supply pipe to the outside. It is connected to the transmitting/receiving unit 11 and the communication cables 51a and 51b to transmit and receives the number of communication outputs from the date of production of the digital water meter 10 stored inside the digital water meter 10 and displays it on the display unit 53. It is a counter terminal 50 that displays and stores in the memory unit 54.

In the first embodiment of the counter terminal 50, it basically includes a meter connection unit 51, a control button unit 52, a display unit 53, a memory unit 54, and a control unit 55.

Here, the meter connection part 51 is electrically connected to the digital water meter 10, also called a digital water meter. This meter connection unit 51 may be connected to the transmission/reception unit 11 of the digital water meter 10 through TTL communication cables 51a and 51b.

The control button unit 52 is composed of various control buttons for the operation of the counter terminal 50. These operations are, for example, the digital water meter 10 with the battery turned off (discharged) and the counter terminal (Counter Terminal). After connecting ) (50) and TTL communication cables (51a, 51b), press the keypad constituting the control button unit (52) of the counter terminal (50) to output total communication from the memory unit (14) inside the digital water meter (10). Check the number of times, check the specifications of the digital water meter, check the total usage (detection data) of the digital water meter, check the TTL communication version (for example, Seoul City or Daegu City), or check the digital water meter (10) It can be used to check the item number of The total number of communication outputs, the standard of the digital water meter, the total usage of the digital water meter, the TTL communication version of the digital water meter, and the confirmation of the item number of the digital water meter are displayed on the display unit 53 so that the inspector can check them on the spot can do. That is, it is possible to check history data including the number of communication outputs from the production date of the digital water meter 10 .

The display unit 53 displays the total number of communication outputs, the standard of the digital water meter, the total amount of usage of the digital water meter, the TTL communication version of the digital water meter, and the item number of the digital water meter as described above.

After the digital water meter 10 and the counter terminal 50 are connected (connected) through the meter connection unit 51, the memory unit 54 determines the total number of communication outputs and the standard of the digital water meter through the control button unit 52. , When the total usage of the digital water meter, the TTL communication version of the digital water meter, and the item number of the digital water meter are confirmed through the display unit 53, the number of corresponding communication outputs, the standard of the digital water meter, and the total usage of the digital water meter , the TTL communication version of the digital water meter, the equipment number of the digital water meter, etc. are stored as data.

The control unit 55 controls the meter connection unit 51, the control button unit 52, the display unit 53, and the memory unit 54 constituted in the counter terminal 50 for checking the number of communication outputs as a whole.

For reference, the digital water meter 10 may include a meter reading unit 12, a battery 13, a memory unit 14, and a control unit 15 in addition to the transceiver 11.

Here, the meter reading unit 12 performs a meter reading to measure the amount of water used by the user through the water supply pipe.

The battery 13 is built into the digital water meter 10 and supplies power required for operation of the digital water meter 10 .

The memory unit 14 stores data (remote meter reading data) output from the digital water meter 10 to the remote meter reading terminal 20, and the stored data is transmitted to the counter terminal 50 later. This remote meter reading data is the meter reading value of the water meter. In addition, the memory unit 14 stores the number of communication outputs from the development of the PCB included in the digital water meter 10 to the shutdown of the battery 13.

The controller 15 controls the transmission/reception unit 11, the meter reading unit 12, the battery 13, and the memory unit 14 of the digital water meter 10.

2 is a block diagram illustrating a counter terminal for checking the number of communication outputs according to a second embodiment of the present invention.

The counter terminal for checking the number of communication outputs according to the second embodiment of the present invention is as shown in FIG. do. The communication unit 56 is configured for wireless communication and enables wireless communication including Bluetooth, Wi-Fi or mobile communication, and stores data (remote meter reading data) stored in the memory unit 54 of the counter terminal 50. It is wirelessly transmitted to an external device or server (described later with reference to FIG. 8).

Meanwhile, the digital water meter 10 and the remote meter reading terminal 20 can be represented as a master and a slave as shown in FIG. It should be electrically insulated from the meter reading terminal. An example of signal level and voltage level ranges between the digital water meter 10 and the remote meter reading terminal 20 is as shown in FIG. 3 .

4 is a diagram for explaining an example of data transmitted from the digital water meter to the remote meter reading terminal. The meter reading data transmitted from the digital water meter 10 to the remote meter reading terminal 20 includes MDH (Manufacturer Specific Data Header) , Article number, inspection month, manufacturer code, status information, data information field, value information field, and user data including meter reading data are transmitted.

5 and 6 are diagrams illustrating an embodiment in which a counter terminal for checking the number of communication outputs according to the present invention is implemented.

The embodiment of the present invention implementing a counter terminal for checking the number of times of communication output can be implemented in various embodiments as shown in FIGS. 5 and 6. (53) and the communication cables 51a and 51b are shown. As described above, the control button unit 52 includes a button for checking the total number of communication outputs, a button for checking the standard of the digital water meter, a button for checking the total usage of the digital water meter, and a TTL communication of the digital water meter. A plurality of buttons are configured for a button for checking the version and a button for checking the item number of a digital water meter, and as shown in FIG. Button functions (power on/off, specifications, usage (total usage), version, item number, and storage (copy) can be displayed.

Meanwhile, the counter terminal for checking the number of communication outputs according to the first and second embodiments of the present invention includes a meter connection unit 51, a control button unit 52, a display unit 53, a memory unit 54, and a control unit 55. ) In addition, as an electronic device capable of configuring the communication unit 56, a separate dedicated counter terminal may be developed and used as shown in FIGS. Since the configuration of the unit 53, memory unit 54 and control unit 55 are basically built, after installing the counter program to the corresponding PDA, notebook, smart pad, smart phone, etc., the function of the control button unit 52 can be changed to the PDA, The function may be assigned to a keypad of a laptop computer or the like, or to a touch screen of a smart pad or smartphone. As a result, it can be used by connecting a connection interface terminal corresponding to the meter connection unit 51 and a PDA, laptop computer, smart pad, smart phone, or the like.

7 is a diagram for explaining an example of using a counter terminal for checking the number of communication outputs according to the present invention.

As shown in FIG. 7, an example of using a counter terminal for checking the number of times of communication output according to the present invention is a facility management office server through a communication network 30 at a predetermined period by the remote meter reading terminal 20 with respect to the digital water meter 10. (40) shows that the water meter reading value is transmitted. In addition, when the battery of the digital water meter 10 is off, the water meter reading value is not transmitted. At this time, when the water meter reading value is not transmitted to the digital water meter 10, the memory unit of the digital water meter 10 The number of communication outputs stored in (14) from PCB development to battery 13 is stopped is connected to the counter terminal 50 to check the data stored in the memory unit 14 of the digital water meter 10. Accordingly, the cause of the battery 13 of the digital water meter 10 being turned off is identified to accurately identify problems that may occur between the digital water meter 10 company and the remote meter and remote terminal companies, that is, the remote meter reading terminal 20. can

8 is a diagram for explaining a communication output count check counter system according to the present invention, and FIG. 9 is a diagram showing an embodiment in which the communication output count check counter system according to the present invention is connected to a laptop computer and checked by a program.

In the counter system for checking the number of communication outputs according to the present invention, the remote meter reading terminal 20 transmits the meter reading value of the digital water meter 10 to the facility management office server 40 through the communication network 30 at a predetermined cycle, and digital If the water meter reading value is not transmitted when the battery of the water meter 10 is off, the number of communication outputs from the PCB development stored in the memory unit 14 of the digital water meter 10 to the battery 13 is stopped is counted. When the terminal 50 is connected to check the data stored in the memory unit 14 of the digital water meter 10, the communication unit 56 as shown in FIG. 2 is configured in the counter terminal 50 Communication network 40 An embodiment in which data stored in the memory unit 14 of the digital water meter 10 is transmitted to the facility management office server 40 and the counter terminal head office server 60 through . Accordingly, by identifying the cause of OFF of the battery 13 of the digital water meter 10, problems that may occur between the digital water meter 10 company and the remote meter and remote terminal companies, that is, the remote meter reading terminal 20, can be solved in a remote location. The person in charge of the facility management office or the head office at the counter terminal will be able to accurately grasp it.

That is, FIG. 9 showing an embodiment in which the communication output count check counter system according to the present invention is confirmed by a program by connecting to a laptop computer is, for example, in order to determine the cause of turning off the battery 13 of the digital water meter 10. For the meter 10, the counter terminal 50 shows an embodiment displayed on the screen of, for example, a laptop computer. As in the displayed embodiment, 'year/month/date of manufacture', 'current time' and 'number of meter readings' are shown. can know In this case, it is possible to accurately identify problems that may occur between the digital water meter company, the remote meter reader, and the remote terminal company by identifying the cause of the battery OFF of the digital water meter, and when the communication unit 56 is implemented as shown in FIG. 2 Since the displayed content can be sent to the terminal of a facility manager in a remote location or to the head office of the counter terminal, it is possible to accurately determine the cause of the excessive number of meter readings among the causes of the digital water meter's battery being turned off.

For reference, in FIG. 9, the instantaneous flow rate mode is a function that displays the current flow rate on the indicator, the Q3, Q2, and Q1 flow rate correction starts are modes that reduce flow errors, and the stored data reading is the flow rate data value stored in the PCB. is displayed on the right display window, the correction value display is a function to sequentially show the Q3, Q2, and Q1 flow rate correction values stored in the PCB on the display (LCD), and the flow rate verification is a mode to check the flow rate value , when selecting the mode, the LCD initial value is set to 0. In addition, the cumulative flow rate display mode displays the current flow rate value and shows that the function of changing to the basic mode of the water meter has been added. On the other hand, there are various standards for water meters, and since the flow rate is different for each standard, setting and checking the flow rate is called a correction factor.

One embodiment of the present invention described above is only exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, it will be well understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and alternatives within the spirit and scope of the present invention as defined by the appended claims.

10: digital water meter 11: transceiver
12: meter reading unit 13: battery
14: memory unit 15: control unit
20: remote meter reading terminal 30: communication network
40: facility management server 50: counter terminal
51: meter connection part 51a, 51b: communication cable
52: control button unit 53: display unit
54: memory unit 55: control unit
56: communication unit 60: remote meter reading terminal headquarters server

Claims (4)

Regarding the digital water meter (10) that outputs TTL communication output for remote meter reading, it is connected through the TTL communication line and cable of the digital water meter (10) only when the battery of the digital water meter (10) is turned off. In the counter terminal for checking the number of communication outputs that counts the number of communication outputs from PCB development to battery 13 stoppage stored in the memory unit 14 of the digital water meter 10
The counter terminal for checking the number of communication outputs,
Through communication cables 51a and 51b connected to the transceiver 11 for transmitting the information measured by the digital water meter 10 for measuring the amount of water used by the user to the outside, and the communication cables 51a and 51b The digital water meter 10 basic data and history data including the number of communication outputs from the production date of the digital water meter 10 connected to the digital water meter 10 and stored inside the digital water meter 10 a meter connection unit 51 that receives the transmission; A memory unit 54 for storing basic data and history data including the number of communication outputs from the production date of the digital water meter 10 transmitted from the digital water meter 10 through the meter connection unit 51; and , a control button unit 52 for controlling the operation of the counter terminal 50; A display unit 53 for displaying basic data and history data including the number of communication outputs from the production date of the digital water meter 10 transmitted from the digital water meter 10 through the meter connection unit 51;
It enables wireless communication including Bluetooth, Wi-Fi or mobile communication, and transmits the remote meter reading data stored in the memory unit 54 wirelessly to an external device or facility management office server 40 and the counter terminal head office server 60. It is configured to include a communication unit 56 for transmission,
The digital water meter 10,
The total number of communication outputs of the digital water meter 10, the standard of the digital water meter 10, the total amount of usage of the digital water meter 10, the TTL communication version of the digital water meter 10, the digital water meter It is configured to include a memory unit 14 in which the item number of (10) is stored,
The control button unit 52 configured as a control button for the operation of the counter terminal 50 controls the digital water meter 10 and the counter terminal 50 whose battery is turned off (discharged) and the TTL After connecting the communication cables 51a and 51b, press the keypad constituting the control button unit 52 of the counter terminal 50 to determine the total number of communication outputs in the memory unit 14 inside the digital water meter 10. Check, check the standard of the digital water meter 10, check the total amount of detection data of the digital water meter 10, check the TTL communication version, or check the item number of the digital water meter 10 is used to check
The history data includes the total number of communication outputs of the digital water meter 10, the standard of the digital water meter 10, the total usage of the digital water meter 10, the TTL communication version of the digital water meter 10, The item number of the digital water meter 10 is included,
With respect to the digital water meter 10, the remote meter reading terminal 20 transmits the water meter meter reading value to the facility management office server 40 and the counter terminal head office server 60 through the communication network 30 at a preset period, and If the water meter reading value is not transmitted when the battery of the digital water meter 10 is off, the number of communication outputs from the PCB development stored in the memory unit 14 of the digital water meter 10 to the battery 13 is stopped is calculated. By connecting the counter terminal 50 to check the data stored in the memory unit 14 of the digital water meter 10, the cause of the battery 13 of the digital water meter 10 being turned off is identified, and the digital water meter ( 10) A method that can accurately identify problems that may occur between the company and the remote meter reader terminal (20) company A counter terminal for checking the number of communication outputs, characterized in that.
delete delete delete

Images