JPH09204592A - Remote display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote display device capable of accurately reporting the voltage decline of the built-in battery of a metering instrument, quickly reporting the exchange of the battery and preventing the loss of a metered value even when the voltage of the built-in battery of the metering instrument declines. SOLUTION: This remote display device 1 accesses the metering instrument 2 at intervals of a fixed time, reads the metered value and other data, judges whether or not abnormality is present in the data, displays the read metered value at a display part 3 when no abnormality is present in the data and judges whether or not the decline of a battery voltage is detected from battery voltage decline judgement data when the abnormality is present in the data. In the case that the battery voltage decline is detected, battery voltage decline detection date and time data are fetched and the metered value and the battery voltage decline detection date and time are alternately displayed at the display part 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote display device for receiving and displaying a measured value from a meter operated by a built-in battery such as an electronic water meter.

[0002]

2. Description of the Related Art An example of a remote display device of this type applied to an electronic water meter system is shown in FIG. The electronic water meter system shown in the same figure is provided in the water customer 101, and is an electronic water meter 103 and the electronic water meter which are measuring instruments for measuring the amount of water used by the customer 101. 10
3 has a remote display device 105 connected via a cable 104 to receive and display water consumption data from the electronic water meter 103.

In the electronic water meter system configured as described above, the remote display device 105 includes the electronic water meter 1
03 is activated at regular intervals for communication, and the measured value is read from the electronic water meter 103, received, and displayed. 14A and 14B are a side view and a front view showing the appearance of the remote display device 105, respectively. As can be seen from the front view, the measured value is displayed near the upper part of the remote display device 105. A display unit 107 is provided.

[0004]

The above-mentioned measuring instrument such as an electronic water meter is operated by a built-in battery, and when the voltage of this battery drops, it is necessary to replace the battery. Despite the voltage drop,
If you continue to use the battery without replacing it, and if the voltage of the battery drops completely and the meter stops working, you may not be able to determine the amount of water used, and you may be billed for it. There are problems such as not being able to.

[0005] The present invention has been made in view of the above,
The purpose is to accurately notify the voltage drop of the built-in battery of the measuring instrument, to promptly notify the battery replacement, and to lose the measured value even if the voltage of the built-in battery of the measuring instrument drops. Another object of the present invention is to provide a remote display device capable of preventing the above.

[0006]

In order to achieve the above-mentioned object, the present invention according to claim 1 is connected to a measuring instrument which operates by a built-in battery, and the measuring instrument is activated at a predetermined interval so that A remote display device that reads out, receives, and displays the measured weight value from the weighing instrument, and when a voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument has dropped is received from the weighing instrument along with the voltage drop occurrence date and time information. The gist of the present invention is to have display control means for alternately displaying the date and time of occurrence of the voltage drop and the measured value.

According to the first aspect of the present invention, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument has dropped is received together with the voltage drop occurrence date information, the voltage drop occurrence date information and the weighing result. The value is displayed alternately to notify the quick battery replacement.

According to the second aspect of the present invention, the measuring instrument is connected to a measuring instrument operated by a built-in battery, the measuring instrument is activated at a predetermined interval, and the measured value measured by the measuring instrument is read from the measuring instrument and received. When a voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument has dropped is received from the weighing instrument, the remote measurement device reads and receives the weighing value measured by the weighing instrument from the weighing instrument. The gist of the present invention is to have a starting interval extending means for prolonging the interval for starting the measuring instrument.

According to the second aspect of the present invention, when the voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument is lowered is received, the interval to activate the measuring instrument to read and receive the measured value. To reduce battery consumption.

Further, the present invention according to claim 3 is connected to a measuring instrument which is operated by a built-in battery, activates the measuring instrument at a predetermined interval, and reads out a measured value measured by the measuring instrument from the measuring instrument. When a voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument has dropped is received from the weighing instrument, the remote measurement device reads and receives the weighing value measured by the weighing instrument from the weighing instrument. The gist of the present invention is to have stop means for stopping the operation of activating the measuring instrument and external starting means for activating the measuring instrument from the outside when it is necessary to read the measured value from the measuring instrument.

According to the third aspect of the present invention, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument is lowered is received, the weighing instrument is activated to read and receive the weighing value. Only when it becomes necessary to stop the measurement and read out the measured value, externally, the measured value is read out to reduce the consumption of the battery.

The present invention according to claim 4 is connected to a measuring instrument which is operated by a built-in battery, activates the measuring instrument at a predetermined interval, and reads out and receives a measured value measured by the measuring instrument from the measuring instrument. When a voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument has dropped is received from the measuring instrument, the last received weighing value and the date and time when the weighing value was measured are displayed. It is a gist to have an alternate display control means for alternately displaying information.

According to the fourth aspect of the present invention, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing device has dropped is received, the last received weighing value and the measured value when the weighing value is measured are received. The date and time information is alternately displayed to inform the user that the battery will be replaced promptly.

Furthermore, the present invention according to claim 5 is connected to a measuring instrument which is operated by a built-in battery, activates the measuring instrument at a predetermined interval, and reads out and receives the measured value measured by the measuring instrument from the measuring instrument. A remote display device for displaying, by receiving a voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument has decreased from the measuring instrument, the voltage of the built-in battery of the measuring instrument further decreases, When the function of is stopped, it has a sequential display control means for sequentially displaying the last received weight value, date and time information when the weight value was measured, and error information indicating stoppage of the function of the weighing instrument. .

According to the fifth aspect of the present invention, after the voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument has decreased, the battery voltage further decreases and the measuring instrument stops functioning. At that time, the last received weighing value, the measurement date / time information, and error information indicating the stoppage of the function of the weighing device are sequentially displayed to notify the quick replacement of the battery.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration in which a remote display device according to an embodiment of the present invention is applied to, for example, an electronic water meter system. As shown in the figure, the remote display device 1 is connected to a measuring instrument 2 such as a water meter via a cable 21, and receives a measured value such as a water consumption amount from the measuring instrument 2 and displays it. Has become. For this purpose, the remote display device 1 communicates with the display unit 3 that displays the weight value measured by the weighing instrument 2, the arithmetic processing unit 4 that performs overall control and arithmetic processing of the remote display device, and the weighing instrument 2. It has a communication I / O unit 5 for.

The weighing device 2 also displays a display unit 6 for displaying various displays, an arithmetic processing unit 7 for controlling and operating the entire weighing device, and data such as the flow rate of water for calculating a measured value. A sensor 8 for detecting, a battery 9 for operating a measuring instrument, and a battery voltage detector 1 for detecting the voltage of the battery 9.
0, and communication I / for communicating with the remote display device 1.
It has an O portion 11.

FIG. 2 is a diagram showing an operation procedure of the system configured as shown in FIG. The operation of the system shown in FIG. 1 will be described below with reference to FIG.

In the remote display device 1, the arithmetic processing unit 4 creates a read command signal, and the read command signal is sent from the communication I / O unit 5 to the cable 21 as a start message as shown in FIG.
To the measuring instrument 2 via. The weighing device 2 receives the activation message from the cable 21 via the communication I / O unit 11 and supplies the activation message to the arithmetic processing unit 7. The arithmetic processing unit 7 calculates the measured value based on the signal detected by the sensor 8 and detects the voltage of the battery 9 via the battery voltage detection unit 10 to determine whether or not the battery voltage has dropped. .

Then, the arithmetic processing section 7 constructs a data message including such measured value data, battery voltage drop determination data, date and time data when the measured value is obtained, as shown in FIG. Is transmitted from the communication I / O unit 11 to the remote display device 1 via the cable 21. When the remote display device 1 receives the data message and determines that the data message is normal, the remote display device 1 returns an end message to the weighing device 2 as shown in FIG.

Further, the arithmetic processing unit 4 takes out the battery voltage drop determination data from the data telegram received from the weighing device 2, and if it is determined from the data that the battery voltage has not dropped, the arithmetic processing unit 4 outputs the weighing value data from the data telegram. The measured value data is taken out and displayed on the display unit 3.

Next, a more specific operation will be described with reference to the flow chart shown in FIG.

In FIG. 4, the remote display device 1 reads the measured value and other data from the measuring device 2 at regular intervals (step 110), and determines whether or not the data is normal (step 120). . When there is no abnormality in the data, the read measured value is displayed on the display unit 3 (step 130), but when there is abnormality in the data, a decrease in the battery voltage is detected from the battery voltage decrease determination data. It is determined whether or not (step 140). If the battery voltage drop is not detected, another process (not shown) is performed. If the battery voltage drop is detected, the battery voltage drop detection date / time data is fetched (step 150), and the measured value and the battery voltage drop detection date / time are acquired. Are alternately displayed on the display unit 3 as shown in FIG. 5 (step 160). In FIG. 5, the display content indicated by 3-1 indicates the measured value “123456.78 m ³ ”, 3-2 indicates the battery voltage drop detection date and time “7: 25: 11: 20”, and both of these displays Alternately displayed as 3.

Then, the remote display device 1 further reads the measured value data from the measuring device 2 after a certain period of time (step 170), and judges whether the data is normal or not (step 180). If the data is normal, the process returns to step 160, but if the data is not normal, another process (not shown) is performed. The measured value displayed on the display unit 3 is sequentially updated after the next reading.

As described above, when the remote display device 1 detects a decrease in the battery voltage of the weighing device 2, the remote display device 1 alternately displays the measured value and the battery voltage drop detection date and time on the display unit 3. It is possible to accurately and promptly inform the meter reader, etc., that the battery of the measuring device 2 has completely decreased,
The battery of the measuring instrument 2 can be replaced properly before the measuring instrument stops operating, and the measuring operation can be continued without interruption.

FIG. 6 is a flowchart showing the operation of the remote display device according to the second embodiment of the present invention.

The operation will be described with reference to the flowchart of FIG. In FIG. 6, when the remote display device 1 reads the measured value and other data from the weighing device 2 at regular intervals (step 210), it determines whether or not there is an abnormality in the data (step 220). If there is no abnormality in the data, the read measured value is displayed on the display unit 3 (step 230), but if there is abnormality in the data, a decrease in the battery voltage is detected from the battery voltage decrease determination data. It is determined whether or not (step 240). If it is not detected that the battery voltage has dropped, another process (not shown) is performed.
When the battery voltage drop is detected, the interval at which the remote display device 1 reads the measured value data from the measuring device 2 is lengthened (step 250).

Then, the decrease in the battery voltage of the weighing device 2 is displayed on the display unit 3, and the weighing value is read and displayed from the weighing device 2 at the longer reading interval (step 260). Then, it is determined whether or not the data can be read normally (step 270). If the data can be read, the process returns to step 260, but if the data cannot be read,
The process moves to another process not shown.

In the above-described second embodiment, when the battery voltage of the weighing device 2 drops, the remote display device 1 lengthens the interval at which the weighing value of the weighing device 2 is read. Battery consumption can be reduced.

FIG. 7 is a diagram showing the configuration of a remote display device according to the third embodiment of the present invention. The remote display device shown in the same figure has an external switch 12 connected to the arithmetic processing unit 4 in the remote display device shown in FIG.
The arithmetic processing unit 4 is configured to read the measured value data from the weighing device 2 when the arithmetic processing unit 4 is activated by, and other configurations are the same as those in FIG.

The operation of the remote display device shown in FIG. 7 will be described with reference to the flow charts shown in FIGS. 8 (a) and 8 (b). In FIG. 8A, when the remote display device 1 reads the weighing value and other data from the weighing device 2 at regular intervals (step 310), it is determined whether or not there is an abnormality in the data (step 320). . When there is no abnormality in the data, the read measured value is displayed on the display unit 3 (step 330), but when there is abnormality in the data, a decrease in the battery voltage is detected from the battery voltage decrease determination data. Is determined (step 340). If the battery voltage drop is not detected, the process shifts to another process (not shown). However, if the battery voltage drop is detected, the remote display device 1 fetches and displays the measured value data and displays the measured value from the measuring instrument 2. The reading operation of is stopped (step 350).

Next, moving to FIG. 8B, for example, when a meter reading person turns on the switch 12 (step 36).
0), the arithmetic processing unit 4 of the remote display device 1 uses the switch 12
In response to the turn-on of, the weighing value and other data are read from the weighing device 2 (step 370). Then, it is checked whether the read data is normal (step 380). If there is no abnormality, the current measured value of the weighing instrument 2 is displayed on the display unit 3 (step 390), but if there is an abnormality, the details of the abnormality are displayed (step 40).
0).

In the third embodiment described above, when the battery voltage of the weighing device 2 drops, the reading operation of the weighing value to the weighing device 2 is stopped, and the switch 12 is turned on only when necessary to read the weighing value. Therefore, the operation of the measuring instrument 2 can be reduced as much as possible, and thus the consumption of the battery of the measuring instrument 2 can be reduced.

FIG. 9 is a flow chart showing the operation of the remote display device according to the fourth embodiment of the present invention.

The operation will be described with reference to the flowchart of FIG. In FIG. 9, the remote display device 1 reads the measured value and other data from the measuring device 2 at regular intervals (step 510), and determines whether or not there is an abnormality in the data (step 520). When there is no abnormality in the data, the read weighing value is displayed on the display unit 3 (step 530), but when there is abnormality in the data, a decrease in the battery voltage is detected from the battery voltage decrease determination data. Is determined (step 540). If it is not detected that the battery voltage has dropped, another process (not shown) is performed.
When the battery voltage drop is detected, the measured value and the date and time when the measured value is obtained are alternately displayed on the display unit 3 as shown in FIG. 10 (step 550). In FIG. 10, the display content indicated by 3-3 indicates the measured value “123456.78 m ³ ”, and the display content indicated by 3-4 indicates the date and time “9” when the measured value was obtained.
"14:10:30" is displayed on the display unit 3 alternately.

Then, the remote display device 1 further reads the measured value data from the measuring device 2 after a lapse of a certain time (step 560), and judges whether the data is normal or not (step 570). If the data is normal, the process returns to step 550, but if it is not normal, the process moves to another process not shown. The measurement value and date and time data displayed on the display unit 3 are sequentially updated by reading out at a constant interval after the next time.

FIG. 11 is a flow chart showing the operation of the remote display device according to the fifth embodiment of the present invention. The flowchart shown in the figure shows a process following step 180 in the flowchart of the first embodiment shown in FIG. 4, for example, in which a decrease in the battery voltage of the weighing device 2 is detected, and the battery voltage is detected together with the measured value. After the drop detection information is returned to the remote display device 1, it is determined in step 610 of FIG. 11 whether the data transmission is normal, and if not, it is determined whether the weighing instrument 2 is unresponsive. (Step 620). If the weighing device 2 is not responding, it is determined that the battery voltage of the weighing device 2 has dropped further and the weighing device 2 has become inoperable, and the remote display device 1 is obtained by the last reading. The measured value, the date and time when the measured value was obtained, and an error display indicating no response or transmission failure of the measuring device 2 are sequentially displayed on the display unit 3 as shown in FIG. 12 (step 6).
30).

In FIG. 12, the display content indicated by 3-5 indicates the measured value "123456.78m ³ " and 3-6
The display content shown in is the date and time when the measured value was obtained "9:14: 1
0 seconds 30 ”, and the display content indicated by 3-7 indicates an error display, and these displays are sequentially performed on the display unit 3.

[0040]

As described above, according to the present invention as set forth in claim 1, when the voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument has dropped is received together with the voltage drop occurrence date information, the voltage drops. Since the drop occurrence date and time information and the weighing value are displayed alternately, it is possible to promptly notify the drop of the battery voltage, and the battery or measuring instrument can be replaced properly and promptly,
The continuity of measurement can be maintained, and the reliability of measured values can be maintained.

According to the second aspect of the present invention, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument is lowered is received, the weighing instrument is activated to read and receive the weighing value. Since the interval is increased, the consumption of the battery can be reduced, the margin for replacing the battery or the measuring device can be increased, and the continuity of weighing and the reliability of the measured value can be maintained.

Further, according to the present invention as set forth in claim 3, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing instrument is lowered is received, the weighing instrument is activated to read and receive the weighing value. Only when it is necessary to stop the operation and read out the weighing value, the weighing value is read out by starting from the outside, so the consumption of the battery is reduced and the margin for replacing the battery or the measuring instrument is increased. It is possible to maintain the continuity of weighing and the reliability of weighing values.

Further, according to the present invention of claim 4, when the voltage drop signal indicating that the voltage of the built-in battery of the weighing device has dropped is received, the last received weighing value and when the weighing value is measured. Since the date and time information of is displayed alternately, the battery can be promptly replaced and the battery or measuring instrument can be replaced properly and promptly, and the continuity of weighing and the reliability of measured values can be maintained. .

Further, according to the present invention as set forth in claim 5, after receiving the voltage drop signal indicating that the voltage of the built-in battery of the measuring instrument has decreased, the battery voltage further decreases and the measuring instrument functions. When stopped, the last received weighing value, its measurement date / time information, and error information indicating that the measuring instrument has stopped functioning are sequentially displayed, so that quick battery replacement can be notified, and the battery or measuring instrument can be notified. Can be replaced accurately and quickly, and the continuity of weighing and the reliability of weighing values can be maintained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration in which a remote display device according to an embodiment of the present invention is applied to, for example, an electronic water meter system.

FIG. 2 is a diagram showing an operation procedure of the system shown in FIG.

FIG. 3 is a diagram showing a configuration of a data electronic message returned from the weighing instrument to the remote display device.

FIG. 4 is a flowchart showing the operation of the system shown in FIG.

5 is a diagram showing a display example displayed on a display unit of the remote display device shown in FIG.

FIG. 6 is a flowchart showing an operation of the remote display device according to the second embodiment of the present invention.

FIG. 7 is a diagram showing a configuration of a remote display device according to a third embodiment of the present invention.

FIG. 8 is a flowchart showing the operation of the embodiment shown in FIG.

FIG. 9 is a flowchart showing an operation of the remote display device according to the fourth embodiment of the present invention.

FIG. 10 is a diagram showing a display example of a display unit of the remote display device in the embodiment shown in FIG.

FIG. 11 is a flowchart showing an operation of the remote display device according to the fifth embodiment of the present invention.

12 is a diagram showing a display example of a display of the remote display device in the embodiment of FIG.

FIG. 13 is a diagram showing a configuration of a conventional electronic water meter system.

14 is a side view and a front view showing a configuration of a remote display device of the system shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Remote display device 2 Measuring instrument 3 Display part 4,7 Calculation processing part 5,11 Communication I / O part 8 Sensor 9 Battery

Claims (5)

[Claims] 1. Connected to a meter operated by a built-in battery,
A remote display device which activates the measuring instrument at a predetermined interval, reads out and receives a measured value measured by the measuring instrument from the measuring instrument, and displays the measured value, which is a voltage indicating that the voltage of the built-in battery of the measuring instrument has dropped. A remote display device comprising display control means for alternately displaying the voltage drop occurrence date information and the measured value when the voltage drop signal is received from the measuring instrument together with the voltage drop occurrence date information. 2. Connected to a meter operated by a built-in battery,
A remote display device which activates the measuring instrument at a predetermined interval, reads out and receives a measured value measured by the measuring instrument from the measuring instrument, and displays the measured value, which is a voltage indicating that the voltage of the built-in battery of the measuring instrument has dropped. A remote display device having a start-up interval extending means for extending a start interval of the weighing instrument for reading out and receiving the measured value measured by the weighing instrument when the decrease signal is received from the weighing instrument. . 3. Connected to a meter operated by a built-in battery,
A remote display device which activates the measuring instrument at a predetermined interval, reads out and receives a measured value measured by the measuring instrument from the measuring instrument, and displays the measured value, which is a voltage indicating that the voltage of the built-in battery of the measuring instrument has dropped. When the low signal is received from the weighing instrument, it is necessary to read the weighing value measured by the weighing instrument from the weighing instrument and stop the operation of activating the weighing instrument to receive it, and it is necessary to read the weighing value from the weighing instrument. A remote display device, comprising: an external starting means for externally starting the weighing instrument. 4. A built-in battery operated meter is connected,
A remote display device which activates the measuring instrument at a predetermined interval, reads out and receives a measured value measured by the measuring instrument from the measuring instrument, and displays the measured value, which is a voltage indicating that the voltage of the built-in battery of the measuring instrument has dropped. A remote display device comprising alternating display control means for alternately displaying the last received weight value and date and time information when the weight value was measured, when the drop signal is received from the weighing device. 5. A built-in battery-operated weighing instrument,
A remote display device which activates the measuring instrument at a predetermined interval, reads out and receives a measured value measured by the measuring instrument from the measuring instrument, and displays the measured value, which is a voltage indicating that the voltage of the built-in battery of the measuring instrument has dropped. After receiving the drop signal from the measuring instrument, when the voltage of the built-in battery of the measuring instrument further decreases and the function of the measuring instrument stops, the last received measurement value, date and time information when the measurement value was measured, And a remote display device having sequential display control means for sequentially displaying error information indicating that the measuring instrument has stopped functioning.