JPS60246500A - Telemetering system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a system for transmitting meter values for gas, 11L, etc., to a telephone glA circuit installed in a home, or to a management company for gas, electricity, etc. It is.

BACKGROUND OF THE INVENTION Conventional gas meter readings are carried out by meter readers who regularly visit each home, but this work is tedious and requires a lot of money.

Conventionally, therefore, a device has been used which detects the gas using an IT'R readable device of the gas meter, outputs the result as an 11Ez signal, and automatically transmits the signal to the management company using a dedicated local communication.

Problems to be Solved by the Invention The above-mentioned conventional device requires a dedicated 11L channel, so the large L7#l of gas is required. However, in households with a small amount of money, there is a problem with its general use, as it is difficult to print gas bills.

Means for Solving Problem χ The present invention provides a meter value reading device f at the test tOH end of the meter.
Y8, the acoustic coupler circuit %t! is transmitted to the reading device via the path. This remote meter reading system is characterized in that a telephone circuit is placed opposite the acoustic coupler tg1'#I.

Function: The present invention uses a meter value reading device to read the meter value displayed at the detection end of the meter, converts this data into a signal for input to the acoustic coupler circuit using the transmission circuit, and transmits the signal to the acoustic coupler circuit. Also, the signal of the acoustic coupler 1gl path? It is sent to the telephone circuit.

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

Figure 1 is a block diagram of an uninvented embodiment, and meter 1 is
It is connected to a control box 3 via an original fiber 2, and is further connected to a data processing device 5 via a back-end fiber 2.

The control box 3 includes a light emitting/receiving mm 6, a transmission circuit 7, an acoustic coupler circuit 8, an IE power supply circuit, a display circuit 10, and a speaker 11.

The meter 1 is provided with a detection end 1a for detecting a meter value, and this detection end 1& is constructed with an absolute encoder for each digit.

For example, as shown in Figure 2, this absolute encoder uses a search type 5, which is equipped with a numeric instruction section 12 and a pattern instruction section 13 encoded with a t3cD code of four bits 13a to 13d. It is also possible to use a model that does not include the numeric indicator 12 and only has the pattern indicator 13.

The power code of this encoder is BCD? In addition to No. 9, there are binary codes, Clay binary codes, Gray binary remainder BCD, etc., but in all of them, the output χ is simply decoded and the absolute value is determined without pulse integration. Because you can get
Even if the power is stopped midway, the absolute EIg and d can be immediately known when the power is turned on again.

Optical fiber 2 is the darkness between meter l and control box 3? Optical 7, i! Each bit] 3a to 1
3 (For L, two optical fibers, the input optical fiber 2f and the reflective optical fiber 2v, are provided in the optical fiber holding part 2AK.

Since this source fiber 2 is optical rather than electrical, it is safe within an explosive gas field without the risk of being shot.

96 light reception 1g1g6 consists of the light emitting electrons 6a which are generated and the light emitting electrons 6a that are applied to each pin 13a to 13d via the incident optical fiber 2f4 and the light receiving element 6b which receives the reflected light.9, it was read at the meter detection end 1m. Value fj! : Send to transmission circuit 7.

The transmission circuit 7 is a circuit that converts the data sent from the light emitting/receiving path 6 into a signal to be sent to the acoustic coupler circuit 8, and is constructed as shown in FIG. 5, for example. In this figure 14-2
8 is an IC, Tr is a transistor, and r is a resistance.

Acoustic Kabral! glWI8 is the signal sent from the transmission circuit 7) and the sound # to be input to the transmitter of the 1st filler circuit 4.
For example, in the circuit to convert to No. 11, as shown in the figure on page 6, WII
There is. In this figure, 4 to 32 are ICr, resistance;
'rrl et transistor, T indicates a transmitter.

The speaker 11 converts the signal from the acoustic coupler circuit 8 into audio and acoustically couples it to the 4-speaker 'r of the ilE phone's same machine circuit.

The IE power supply circuit is a 1gl path that supplies power to each 1JiJ path 6 to 1O, and the display circuit 10 is a meter value? This is a circuit showing Kff for monitoring.

The telephone circuit 4 is, for example, 6oo4t, 600-A
A circuit sound known as Ito is used.

Next, to explain the operation of the non-example, when the gas management company and the general household KIP put the word t and 9 on the control box 3, the light emitting element 6a 19 emits light in the power supply circuit 9, and the meter The value reading operation is started.The light from the light emitting element 6& passes through the optical fiber 2t in the direction of the arrow A2 and hits the bit 13&, and the reflected light is reflected in the direction of the arrow B2.
The optical fiber 2PYa and the light receiving element 6b K
The received light is then converted into a title %fza number.

With this pressure, the value of the meter is 13a~13
Symbol of 0 or l from reflection method NK of d (1 digit bit)?
Obtain the absolute value y of each camellia! -Read.

The meter value read by the reading device is displayed on the display circuit IO, and the data is sent to the acoustic coupler 8. The signal sent to the acoustic coupler circuit 8 is converted into audio by the speaker 11, and this audio is input as an audio signal to the transmitter aT of the telephone circuit 4 located in the control box 3, and is combined with the audio qI.

When this input operation θτ is completed, a voice signal is emitted, and after that, the transmitter T is removed from the control box 3 and returned to the telephone circuit 4.

According to Tenbukuro, the time it takes to detect the meter value and manually input it to the 111 phone circuit 4 is about #1 second, which is extremely short.

Therefore, placing and removing the controller from the control box 3 will not cause you any pain as you will not have to wait for a long time.

The manually inputted acoustic signals are sent to the data processing device 5 via the telephone line and subjected to data processing.

Other Embodiments The embodiments of the present invention are not limited to the above l'C, and specific technical means and additions can be made within the scope of the foregoing gist of the invention.

For example, instead of acoustic coupling with the telephone circuit through a loudspeaker, a magnetically coupled wave, as shown by taS in Figure 6, can be used, for example, as a telephone pickup Jla? It is connected to the junction between the l'acoustic' coupler circuit 8 and the speaker 11, and the coil of this pickup port a (external coil) is arranged so as to face the llE phone's same machine circuit 4 Il (internal coil) Z, and magnetically coupled. It is also possible to send data using

Also, if a transmissive device 171w that allows light to pass through the pattern indicating section is used instead of a reflective reading device that has a small detection a$41a but a large optical loss, the tf54 will increase but the optical loss will be small. .

Furthermore, if an incremental type sound is used instead of an absolute encoder at the detection end, a counter circuit will be required in the control box, and a backup power supply will be required in the event of a power outage. becomes easier.

Effects of the Invention The non-invention is that the meter value reading device fY is provided at the detection end of the meter, so it is not possible to automatically count the meter value. This allows the meter value to be converted into a 1R number that can be input into the telephone circuit.

Furthermore, since the acoustic coupler circuit and the telephone circuit are arranged facing each other, the signal of the acoustic coupler circuit is automatically transmitted to the telephone ff11g1.
acoustically or magnetically coupled to the road.

Therefore, meter values can be automatically measured in remote locations without having to install a dedicated 101 line for the meter, which is usually installed in homes. .

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an embodiment of the present invention, Figures 2 to 2 are block diagrams showing examples of the present invention.
Figure 6eXJ is a detailed diagram of Figure 1, Figure 2 is a 1ISI inkstone diagram of the detection end of the meter, Figure 3 is an enlarged perspective view of the turn indicator and optical fiber, and Figure 4 is the light emitting and receiving ig7 path. Figure 5 shows the light emitting/receiving circuit, and Figure 5 shows details of the transmission circuit. S diagram, 1
Figure 6 is a #lA diagram of the sound-coupler circuit. la...Detection end 2...Optical fiber 3...Control box 4...'Telephone circuit 6...Emission/reception circuit 7...Low transmission circuit 8...Acoustic coupler T...Transmission Speaker L...internal coil (7712 people) Figure 1 Figure 4 Figure 2 Figure 3 Procedural amendments Commissioner of the Japan Patent Office Kazuten Wakasugi 1, Indication of the case Patent Application No. 103058 of 1982 2 , Name of the invention Remote meter reading system 3, Relationship with the case of the person making the amendment Patent tk5 - Address 1 name of Furumaki 31311, Nagareyama City, Chiba Prefecture Hauni Egyo Co., Ltd. 4, Agent 5, Subject of amendment ``H paddy'' 411 6. Contents of correction Correct @l!l' in the patent claim as shown in the attached sheet Ol meter detection 4K, a meter value reading device is provided, an acoustic coupler circuit is connected to the reading device via a transmission circuit, A remote meter reading system characterized in that the acoustic coupler circuit is arranged opposite to a telephone circuit. 2. A remote meter reading system characterized by disposing the acoustic coupler circuit opposite to a telephone circuit. 2. The remote meter reading system according to claim 1. 3. The remote meter reading system according to claim 1, characterized in that the reading end of the meter is amended by an absolute encoder for each digit. 4. Sound The remote meter reading system according to claim 1, characterized in that the coupler circuit and the transmitter of the telephone are acoustically coupled. 5. The acoustic coupler circuit and the internal coil of the telephone circuit are magnetically coupled. A remote meter reading system according to claim 1, characterized in that:

Claims (1)

[Claims] 1. A meter value reading device is provided at the detection end of the meter, and an acoustic coupler circuit is directly read from the reading device via a transmission circuit,
A remote meter reading system characterized in that the acoustic coupler circuit is arranged opposite to a telephone circuit. 2. Claim 7, wherein the detection end of the meter and the meter value reading device are optically connected by an optical fiber.
The remote meter reading system described in Section 1. 3 The detection end of the meter is 111 with Absolute Enfug for each digit! A remote meter reading system according to claim 1, characterized in that: 4 Acoustic coupler circuit and t-filling machine! 12. The remote meter reading system according to claim 11, wherein the remote meter reading system is characterized in that the I circuit and the transmitter are connected to the transmitter. 5. The remote meter reading system according to claim 1, wherein the sound-coupler Igl path and the internal coil of the telephone circuit are magnetically coupled.