JPH06318983A - Flow rate measuring device - Google Patents

Abstract

PURPOSE:To provide a flow rate measuring device which is capable of connecting with centers of plural telephone numbers according to the kind of data and the kind of flow meter. CONSTITUTION:This device is composed of a data collection means 19 collecting the measured data of a flow meter, a transmission means 11 transmitting a response signal by getting it on a carrier wave, a reception means 13 receiving the measured data from the flow meter and a number preparation means 23 preparing telephone numbers according to the kind of the data from the flow meter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow rate measuring device for measuring an integrated value of the amount of gas, water, electricity, etc. used by a gas meter, a water meter, an electric power meter or the like and remotely sucking the integrated value. Is.

[0002]

2. Description of the Related Art In recent years, a so-called automatic meter reading system has been introduced which absorbs an integrated value measured by a meter from a remote place using a telephone line or the like. In addition, it has been attempted to connect the telephone line and the meter by a wireless line. 4A and 4B, a block diagram of an automatic meter reading system using a conventional flow rate measuring device is shown and described. FIG. 4A shows a device on the gas meter side, 1 is a gas pipe connected to a home, 2 is a gas flow meter provided in the middle of the gas pipe 1 for measuring the amount of gas used in the target home (so-called gas meter) ) 3 is storage means, 4 is transmission means, 5 is control means, 6 is reception means, and 7 is an antenna. 4B shows a device on the data collecting side, 8 is a public telephone line, 9 is a no-ringing network control unit (hereinafter referred to as T-NCU: Terminal-Network Control Unit) connected to the public telephone line 8, and 10 is an interface unit. , 11 are transmission means,
Reference numeral 12 is a control means, 13 is a receiving means, and 14 is an antenna. A management device (not shown in FIG. 4) that manages meter reading data is connected to the telephone line 8. First, a case of a center call in which the flow measurement device is called from the management device to collect integrated data will be described. The management device calls the T-NCU 9 via the telephone line 8. Called T-NC
After activating the control means 12, the U9 outputs a meter reading data request signal to the interface means 10. The activated control means 12 is the interface means 10 and the transmission means 1.
Turn on the power of 1. The interface means 10 performs level conversion and waveform conversion of the inputted meter-reading data request signal, and outputs the converted signal to the transmission means 11. The transmitter 11 frequency-modulates the oscillation signal according to the meter-reading data request signal, amplifies the signal, and radiates it as a radio wave into the space from the antenna 14.
The radiated radio wave is, for example, a radio wave in the 400 MHz band which has been approved for use as a low power radio in recent years. The radio wave radiated from the antenna 14 is received by the antenna 7 and guided to the receiving means 6. The receiving means 6 amplifies the received signal in the 400 MHz band and demodulates it to output a meter reading data request signal. The storage unit 3 stores the integrated value of the gas flow rate measured by the gas flow meter 2. Then, when the control means 5 receives the meter reading data request signal, the control means 5 activates the storage means 3 and the transmission means 4. Then, the oscillation signal of the transmission means 4 is frequency-modulated and amplified by the integrated data stored in the storage means 3 and then radiated as a radio wave from the antenna 7 into the space. The frequency of the radio wave radiated from the antenna 7 is the same as the frequency of the radio wave radiated from the antenna 14. The radio wave frequency-modulated by the integrated data is received by the antenna 14 and guided to the receiving means 13. The receiving means 13 amplifies and demodulates the received signal in the 400 MHz band and outputs the received integrated data. When the control means 12 receives the integrated data, it activates the transmitting means 11 to send a response signal to the gas flow meter indicating that the integrated data has been received via the antenna 14, and at the same time, via the interface 10, the T-NCU 9 Is activated and the integrated data is sent to the telephone line 8.

Next, the case of a terminal call in which the flow rate measuring device automatically transmits integrated data to the management device will be described. In the case of a call from the terminal, the storage means 3 is periodically activated by a timer built in the control means 5 and the accumulated data is sent to the transmission means 4. Then, the oscillation signal of the transmission means 4 is frequency-modulated and amplified by the integrated data stored in the storage means 3 and then radiated as a radio wave from the antenna 7 into the space.
The radio wave frequency-modulated by the integrated data is received by the antenna 14 and guided to the receiving means 13. Receiving means 13
Then, the received signal in the 400 MHz band is amplified and demodulated, and then the received integrated data is output. When the control means 12 receives the integrated data, it activates the transmitting means 11 to send a response signal to the gas flow meter indicating that the integrated data has been received via the antenna 14, and at the same time, via the interface 10, the T-NCU 9 Is activated and the integrated data is sent to the telephone line 8. Since it is legally forbidden to send a telephone number by radio in the radio waves of low power wireless security, dial the telephone number in advance using T-
It is stored in NCU9.

[0004]

However, in the above-mentioned conventional configuration, for example, when the management device for integrated gas data and the management device for security information such as gas leak are connected to different telephone numbers, or a water meter is used. There is a problem that it is not possible to cope with a case where a plurality of telephone numbers are required, such as when the gas meter management device is connected to different telephone numbers.

The present invention has been made to solve the above problems, and an object thereof is to realize a flow rate measuring device having a plurality of telephone numbers and capable of sending data to a required telephone number depending on the type of data. Is.

[0006]

In order to achieve the above object, a flow rate measuring device of the present invention comprises a data collecting means for collecting measurement data of a flow meter and outputting the measurement data to a telephone line, and the data collecting means. Transmitting means for transmitting a data collection request signal from the means or a response signal to the measurement data from the flowmeter on a carrier wave, receiving means for receiving the measurement data from the flowmeter, and reception received by the receiving means A number creating means is provided for analyzing the data and creating a calling number or a flow meter number for the telephone line based on the analysis result.

[0007]

According to the present invention, since the calling number to the telephone line can be changed according to the type of data, the present invention can construct an automatic meter reading system which can be compatible with a plurality of meters or automatic meter reading systems and security systems.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. FIG. 1 shows the configuration of the device on the data collection side, and FIG. 2 shows the configuration of the device on the gas flow meter side. The same functional blocks as in the conventional example are given the same numbers. In FIG. 1, 8 is a public telephone line, and 9 is a T connected to the public telephone line 8.
-NCU, 10 are interface means, 9 and 1
0 constitutes the data collecting means 19. 11 is a transmitting means, 12 is a control means, 13 is a receiving means, and 14 is an antenna. Reference numeral 20 is a data analysis unit, 21 is a comparison table creating unit, and 22 is a comparison table unit, which constitutes a number creating unit 23. Reference numeral 24 is an external communication terminal. 1 in FIG.
Is a gas pipe connected to a home, 2 is a gas flow meter (so-called gas meter) provided in the middle of the gas pipe 1 for measuring the amount of gas used in the target home, 3 is a storage means,
4 is a transmitting means, 5 is a control means, 6 is a receiving means, and 7 is an antenna. Reference numeral 15 is a comparison table means, and 16 is a comparison table creating means, which constitutes a number adding means 17. Reference numeral 18 is a security monitoring means. After the installer installs the device on the gas flow meter side and the device on the data collection side, a setter for initial setting is connected to the external communication terminal 24 installed in the device on the data collection side. Using this setting device, for example, the accumulated data is a message number 1 and a telephone number 03-332.
1-1123, the security data is input as a message number 2 and a telephone number 03-3321-1212. Then, the comparison table creating means 21 is activated to create a comparison table of message numbers and telephone numbers. The created comparison table of message numbers and telephone numbers is stored in the comparison table means 22. The comparison table means 22 is composed of a non-volatile memory so that the memory is not erased even when the power is turned off. Further, the data of the electronic message number and the telephone number inputted to the external communication terminal 24 are sent out on the radio wave of 400 MHz via the interface means 10, the transmitting means 11 and the antenna 14. This radio wave is received by the antenna 7 of the device on the gas flow meter side, amplified and demodulated by the receiving means 6, and the receiving means 6 outputs a message number and a telephone number.

The comparison table creating means 16 creates a comparison table using the received electronic message number and telephone number and stores it in the comparison table means 15. The comparison table means 22 is composed of a non-volatile memory so that the memory is not erased even when the power is turned off.
According to the above procedure, the comparison table means 15 and 22 creates a comparison table of message numbers and telephone numbers corresponding to the types of data.

Next, a normal automatic meter reading operation will be described. The storage means 3 is periodically activated by a timer incorporated in the control means 5, and the integrated data stored in the storage means 3 is output to the comparison table means 15. The comparison table means 15 calls up the electronic message number 1 corresponding to the integrated data, adds the electronic message number 1 to the integrated data, and sends the integrated data to the transmitting means 4.
In the transmitting means 4, the carrier wave of 400 MHz is sent to the message number 1
After being frequency-modulated by the integrated data added with, the signal is transmitted from the antenna 7 as a radio wave. This radio wave is antenna 1
4, the integrated data to which the electronic message number 1 is added is retrieved via the receiving means 13. The data analysis means 20 analyzes the message number 1 of the received data, and the comparison table means 22.
The telephone number 03-3321 corresponding to the message number 1 using
-1234 is called. The called telephone number is TN via the control means 12 and the interface means 10.
The telephone number 03-3321-1234 sent to the CU 9 and called by the T-NCU 9 is dialed.

In the case of the security information from the security monitoring means 18, the comparison table means 15 sends a message number 2
Is selected. Then, in the receiving means 13, a message number 2
Is received, and the telephone number 03 corresponding to the security information is obtained from the comparison table means 22 based on the analysis result of the data analysis means 20.
-3321-1212 is called, and the telephone number 03-3321-1212 is dialed by the T-NCU 9.

A block diagram of another embodiment of the present invention will be described with reference to FIG. In FIG. 3, 24 to 25 are devices on the flow meter side, 24 is a first gas flow meter, 25 is a second gas flow meter, 26 is a water meter, and 27 is a power meter. And each of the devices 28 on the data collecting side is wireless
Can be connected with. 8 is a telephone line. The first gas flow meter 24 and the second gas flow meter 25 have the same telephone number, and the water meter 26 and the power meter 27 have different telephone numbers. Further, the first gas flow meter 24 and the second gas flow meter 25 are gas meters attached to different homes, and therefore have different user numbers.
Further, it is necessary to give identification numbers to the meters 24 to 27 in order to select which meter is connected to the data collection side device 28. That is, a comparison table of identification numbers, user numbers (meter numbers), message numbers, and telephone numbers is required. An example of the comparison table is shown below.

[0013]

[Table 1]

The user number and the telephone number are converted into an identification number and a message number by the comparison table means 15 built in the device on the flow rate measuring side and transmitted. And the device 28 on the data collection side
It is converted into the original user number and telephone number by the comparison table means 22 built in. Then, it connects to the telephone line based on the converted telephone number. The difference between the first gas flow meter 24 and the second gas flow meter 25 can be managed by the management device connected to the telephone line 8 by the user number. In comparison with transmitting the user number, the identification number is assigned and transmitted as described above, and the transmission is much more efficient, and the probability of error is lower.

[0015]

As described above, according to the flow rate measuring device of the present invention, the data collecting means for collecting the measurement data of the flow meter and outputting the measurement data to the telephone line, and the data collecting means from the data collecting means. Transmitting means for transmitting a request signal or a response signal to the measurement data from the flowmeter on a carrier wave, receiving means for receiving the measurement data from the flowmeter, and analyzing and analyzing the received data received by the receiving means As a result, since the telephone number is provided with a calling number or a flow meter number for the telephone line, a telephone number corresponding to the type of data can be connected through the telephone line. Therefore, different types of systems such as automatic meter reading system and security system, gas meter and water meter, and electricity meter can be connected to the telephone line with a common data collection device. Further, even with the same system, it is possible to easily connect a plurality of home flowmeters to one data collection device.

[Brief description of drawings]

FIG. 1 is a block diagram of a data collection side of a flow rate measuring device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a gas flow meter side of a flow measuring device according to an embodiment of the present invention.

FIG. 3 is a block diagram of a flow rate measuring device according to another embodiment of the present invention.

FIG. 4 is a block diagram of a conventional flow rate measuring device.

[Explanation of symbols]

 2 flow meter 3 storage means 4 transmission means 6 reception means 9 T-NCU 10 interface means 11 transmission means 13 reception means 15 comparison table means 16 comparison table preparation means 17 number addition means 20 data analysis means 21 comparison table preparation means 22 comparison table Means 23 Number creating means 24 External communication means

Front page continuation (72) Inventor Shinichi Nakane 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (5)

[Claims] 1. A data collection means for collecting measurement data of a flow meter and outputting the measurement data to a telephone line, and a data collection request signal from the data collection means or a response signal to the measurement data from the flow meter as a carrier wave. A transmitting means for transmitting the data on the board, a receiving means for receiving the measurement data from the flowmeter, an analysis of the received data received by the receiving means, and a calling number to the telephone line or a flowmeter number is created from the analysis result. A flow rate measuring device having a number creating means. 2. Storage means for electronically storing measurement data of a flow meter, and number adding means for adding a number corresponding to a destination telephone number or a number corresponding to a flow meter number to the measurement data from the storage means. And a transmitting means for transmitting the signal from the number adding means on a carrier wave signal and transmitting, and a receiving means for receiving a request signal requesting the transmission of the measurement data from the storage means or a response signal to the measurement data. Flow measuring device. 3. The flow rate measuring device according to claim 2, which has a plurality of flow meters. 4. The number creating means has a comparison table means for comparing the data analysis result with the telephone line calling number or flow meter number, and the receiving means or the telephone line to telephone line calling number or flow meter. The flow rate measuring device according to claim 1, further comprising: a comparison table creating unit that creates a comparison table when the number is received. 5. The number adding means has a comparison table means of a destination telephone number or a flowmeter number and a corresponding number, and when the destination telephone number or the flowmeter number is received from the receiving means, the comparison table is created. The flow rate measuring device according to claim 2, wherein the flow rate measuring device comprises a creating means.