KR910000825B1 - Housing information communication - Google Patents

Abstract

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Description

Housing Information Communication Device

1 is a block diagram of a housing information transmitting apparatus of the present invention.

2 is a block diagram of a housing information transmitting apparatus of the present invention.

3 is a block diagram of a gas meter reading system.

4 is a flowchart of a transmission control function operation of the home information transmitting apparatus of the present invention.

* Explanation of symbols for main parts of the drawings

1: Sensor group 2: Detection unit

3: power 4: backup power

100: terminal device 200: input interface

300: central processing unit (CPU) 400: large scale integrated circuit (IC)

500: network control unit (NCU) A: housing information transmission device

C: Information Center GM: Gas Meter

L: Aerial line P: Spare port

S ₁ , S ₂ : gas disconnect sensor S ₃ : gas leak sensor

S ₄ : Forward disconnect sensor

The present invention relates to a housing information communication device that transmits various types of information generated in a house to an information center and processes or copes with the information center.

An automatic metering device, such as gas, water, electricity, etc. is installed in the house, and the metering information detected by the device is transmitted to the information center through a communication line such as a telephone line or a dedicated line, and the metering data is transmitted. Housing information communication devices for contacting predetermined organizations such as gas companies are beginning to be put into practical use.

However, in the conventional housing information communication device, there is a problem that the information center receives correct data even when the meter reading information transmission data is wrong.

An object of the present invention is to provide a housing information communication device capable of requesting retransmission in the event of a mistake in meter reading data.

In order to achieve the above object, the housing information communication device of the present invention is installed in a house and outputs meter reading information such as gas, water and electricity, and a safety device for detecting safety information such as disaster prevention, crime prevention and first aid. And an input interface for inputting the meter reading information and safety information, a central processing unit for processing information from the input interface, an integrated circuit for outputting a multi-frequency code corresponding to the information from the central processing unit and the integrated circuit. And a terminal device including an electronic control circuit having a network control device for transmitting the multi-frequency code of the multi-frequency code to the information center via a transmission path, when the meter information is transmitted from the terminal device to the information center. In this case, the information transmission request signal is transmitted from the information center to the terminal apparatus.

The housing information communication device of the present invention having the above configuration exhibits the following actions and effects.

When erroneous information is transmitted when the meter information is transmitted from the terminal device to the information center, a resend request signal is sent from the information center to the terminal device, and accurate meter information can be transmitted to the information center.

The housing information communication device of the present invention will be described based on the embodiment shown.

1 and 2 are block diagrams schematically showing a house information communication device of the present invention.

A represents a house information transmission device. 100 represents a terminal device installed in the indoor of the house.

T is a telephone having a push button consisting of the numbers 0, 9, A, B, C, and D from 0 to 9, and in this embodiment, is a general telephone connected to the terminal device 100 and installed indoors.

L represents the public line of the telephone which is a transmission line including an exchange system (telephone station, exchange). C is notified of various information of the house which is regularly or irregularly transmitted from the terminal device 100 through the public line L, and notifies each predetermined institution such as a gas company or dispatches personnel according to the information. At the same time, an information center for transmitting an information retransmission request signal to the terminal device 100 when erroneous information is transmitted from the terminal device 100 is shown.

The terminal device 100 includes an information detection sensor group (hereinafter referred to as a sensor group) 1, a metering unit 2 including an electronic control circuit, a power source 3, and a backup power source 4.

The sensor group 1 includes a gas meter meter (hereinafter referred to as a gas meter) GM which is an automatic metering device, a gas disconnect sensor S ₁ and S ₂ as a safety device, and a gas leakage sensor S _{3 as} a disaster prevention sensor of a safety device. Spare port (P) for signal from safety disconnection sensor (S ₄ ) and automatic conversion device (not shown), disaster prevention sensor (not shown), or first aid button (not shown) Is made of.

Gas meter GM is a meter that detects the flow rate of the supply gas to the gas equipment, and detects the rotation of the magnet installed in the rotating body proportional to the gas flow rate by the magnetic sensor element and sends out pulse signal proportional to the flow rate. do.

The gas disconnection sensor S ₁ is configured by setting the set capacity (for example, 70% of the capacity of the gas cylinder) at the time of filling the gas or replacing the gas cylinder in accordance with the capacity of the gas cylinder on one side of the connecting tube gas cylinder. After setting, the coefficient of the gas meter GM is compared with the set capacity, and from the result, the first gas disconnection signal is sent when the set value of the coefficient?

The gas disconnect sensor S ₂ is configured by setting the set capacity (for example, 80% of the capacity of the gas cylinder) when the gas is charged or exchanged in advance according to the capacity of the other gas cylinder of the connecting tube gas cylinder. It sets and compares the coefficient of the gas meter GM with a set capacitance, and sends a 2nd gas disconnection signal when a comparison result is a coefficient d set capacitance.

The gas disconnect sensors S ₁ and S ₂ can be replaced by the comparator 34 to be described later.

The gas leak sensor S ₃ is a safety device for gas equipment, and generates an output of 0 V when inoperable, 6 V in normal operation, and 12 V in case of gas leakage. In addition, the gas leakage sensor S ₃ detects gas leakage in the room when the gas leakage in the room is less than a predetermined value.

The battery disconnect sensor S ₄ always detects the voltage of the power supply 3 (V ₀ = 3.0V) and when the voltage of the power supply V ₁ falls below the value set by the presetter, the battery disconnection signal Send the.

The metering unit 2 includes an input interface 200, a central processing unit (CPU) 300, an integrated circuit (IC) 400, a network control unit (NCU) 500, a gas leakage flow rate, and a gas disconnection flow rate. RAM 600 for converting data from the sensor group 1 into an electrical signal as a storage device for a set value, a set time, a set voltage of a battery power source, and a user code, and a ROM 700 that is a storage device for control procedures of the entire system. Has

The input interface 200 includes a pulse input port 201 which is an input port of the gas meter GM, gas disconnection sensors S ₁ and S ₂ , gas leakage sensor S ₃ , and battery disconnection sensor S _4. ), A voltage-free input port 202, which is an input port of the spare port P, is provided. In addition to the gas meter GM, the pulse input port 201 can input signals from automatic meter reading devices such as tap water and electricity.

As shown in FIG. 3, the CPU 300 includes an automatic meter reading mechanism that outputs each signal to the IC 400 by an input from the input interface 200, a gas remaining amount determination mechanism of a gas cylinder, and disaster prevention mechanisms such as gas leakage. And a tire 301 is installed. The IC 400 sends a multi-frequency (MF) signal obtained by combining the frequencies corresponding to the input from the CPU 300 to the NCU 500 as a selection signal group.

NCU 500 is connected to the telephone outside the home and the general subscription telephone (T), the reception control device for inputting the outgoing signal of the telephone outside the home, and the telephone or information outside the home from the general subscription telephone (T) or CPU (300) Switching between the transmission control device for outputting the transmission signal to the center C, the automatic meter reading mode for connecting the CPU 300, the information center C, and the call mode for connecting the general subscription telephone T and a telephone outside the house It has a mode converter.

The lithium battery 3V of the power supply 3 is used, and 7 years of continuous use is possible.

3 shows a block diagram of an automatic meter reading system of a gas of a CPU. The gas meter GM which sends the flow signal (pulse signal) which has a pulse number to the counter 31, and the pulse signal of the gas meter GM are input through the pulse input port 201, and the pulse number is counted simultaneously. The counter 31 to the integrated memory 32, the integrated memory 32 to input and store the integrated signal, the set value at which the gas consumption is set and the transmission control device 38 in the NCU 500. A setter 33 installed in the RAM 600 storing user codes and the like, a comparator 34 for outputting a signal when the count is set by comparing the coefficient from the accumulator memory 32 with the set value; The data synthesis processor 37 performs data synthesis processing of the encoding processor 35 for converting the coefficient value into a transmission code, and the encoding processor 36 and the encoding processor 35 of signals from other sensors. The transmission control device 38 of the NCU 500 passes through the public line L of the telephone. Send to the information center (C).

4 shows an operation flowchart of transmission control of an automatic dial.

First, in step 701, the automatic dial set for each house determines whether or not the transmission timing timer is at the time of reading the gas. In other words, since there is no need to send gas every hour during the meter reading, in some houses it is sent to the information center (C) at 10:00 am on the first day of the month, and in another house at 10:05 am on the first day of the month. do. The interval of the transmission timer time between one house and another house is at least 5 minutes, and is set between 1 and 28 days per month. In the present embodiment, when the gas leak setting report is output, transmission can be performed at any time regardless of the transmission timing timer.

When the transmission timing timer time is NO (NO) in step 701, step 701 is repeated. At step 701, when the transmission timing timer time is YES, it is determined whether or not the general subscription telephone T is in use (step 702). When in use (Yes) in step 702, step 702 is repeated. When not in use (No), it is determined whether or not an incoming call is being made from a telephone outside the house (step 703).

When calling (Yes) in step 703, step 702 is repeated. When not in call (No), the NCU 500 is converted to connect the public line L of the telephone and the IC 400 (step 704). Next, the DC line (not shown) in the NCU 500 is connected (ON) (step 705), and it is judged whether or not it has passed for 3 seconds thereafter (step 706).

When not elapsed for three seconds (No), step 706 is repeated. When 3 seconds have elapsed (Yes), automatic dialing is performed in the information center C (step 707.) Next, an information sending instruction signal (a later MF signal "#") is received from the information center C. (Step 708) When receiving at step 708 (Yes), the transmission format shown in Table 1 described later based on the transmission protocol flowchart according to each regulation of the transmission control apparatus. Is transmitted (step 709).

Next, it is judged whether or not the information retransmission request signal (MF signal "#") is received from the information center C (step 710). When it is not received in step 710 (NO), it is determined whether 3 seconds have elapsed after transmitting the transmission form (step 711). When 3 seconds have elapsed (YES) in step 711, transmission control ends. When 3 seconds have not elapsed (NO), step 711 is repeated.

When the information retransmission request signal is received from the information center C in step 710 (YES), it is determined whether the number of times of reception of the information retransmission request signal is the second time (step 712). When it is not the second time (NO), the DC circuit is opened (step 713), and it is determined whether 5 seconds have elapsed thereafter (step 714).

When 5 seconds have not elapsed (NO) at step 714, step 714 is repeated. When 5 seconds have elapsed (YES), step 702 or less is repeated again.

When the information transmission instruction signal is not received from the information center C in step 708 (NO), it is determined whether or not the number of reception times has been three times after the automatic dialing (step 715).

In step 715, the DC circuit is opened when it is not performed three times (NO) (step 716). Then, it is determined whether 5 seconds have elapsed (step 717). When 5 seconds have passed (YES) at step 717, step 702 or less is repeated again. When 5 seconds have not elapsed (NO), step 717 is repeated. When the number of receptions reaches three times (YES) in step 715, it is determined whether 15 seconds have elapsed (step 718). When 15 seconds have not elapsed (NO) in step 718, the flow advances to step 716. FIG. When 15 seconds have elapsed (YES) and when the number of reception times is YES at step 712, the DC circuit is opened (step 719).

Next, it is determined whether or not the automatic dialing is performed (step 720). When the automatic dialing is not performed in step 720 (NO), it is determined whether 5 minutes have elapsed since the DC circuit was opened (step 721). When 5 minutes have passed (YES) at step 721, step 702 or less is repeated again. When 5 minutes have not passed (NO), step 721 is repeated.

When (YES) is performed after the redialing is performed in step 720, it is judged whether or not the recognition is performed after the third automatic dialing (step 722).

In step 722, transmission control is terminated at one (YES) after the third automatic dial is made. When the third automatic dial is not performed (No), it is determined whether 5 minutes have elapsed since the DC circuit was opened (step 723). When 5 minutes have passed (Yes) at step 723, step 702 or less is repeated again, and when it has not passed 5 minutes (NO), step 723 is repeated.

TABLE 1

TABLE 2

Table 1 shows the transmission format used in transmission control. In Table 1, all of the selection signals used in the transmission format are MF signals (multi frequency codes), and numbers 0 to 9, and # and B symbols are used, for example.

The MF signal " B " at the left end of Table 1 is a start of text, and the " B "

The ID of Table 1 contains the 6-digit user code number (0-9). As a result, the information center C can quickly determine which house the transmission signal is from.

The division code "B" in Table 1 indicates a division end following the user number previously transmitted.

03 in Table 1 shows the relationship between information types and code numbers. The code numbers are extracted from Table 2, and two digits are entered. In this embodiment, the data indicates that gas leakage has occurred in the house and transmits information on gas reading.

The gas meter reading of Table 1 is a meter reading detected by the said automatic meter reading system of the said gas, and 6 digits (any of 0-9) enter.

The CK (Character Check Code) shown in Table 1 contains only the first number (any of 0 to 9) of the number obtained by counting all the numerical information in the above-mentioned transmission information. This CK is for detecting a mistake in the transmission information. For example, if the data becomes B123456 B03123456 CK #. #., Then CK = 5. That is, the number 5 of units is used at 1 + 2 + 3 + 4 + 5 + 6 + 0 + 3 + 1 + 2 + 3 + 4 + 5 + 6 = 45.

The right end "##" symbol in Table 1 is an end of text symbol, indicating the end of information transmission.

Here, after the transmission form (Table 1) is transmitted to the information center C (after receiving the start text signal), the information retransmission request signal is transmitted to the terminal device 100 in the case of a transmission form error or a MF signal error. . If there is a mistake after receiving the division code, the information retransmission request signal is sent within 2 seconds. If no classification code is received, the information retransmission request signal is transmitted within 2.5 seconds. If any other code is received without receiving the information start code, it is determined as invalid information and the DC circuit is opened. The number of information retransmission requests shall be made twice.

In the present embodiment, the public line of the telephone is used as the transmission path when the information is transmitted from the terminal apparatus to the information center, but other communication lines or radios using communication satellites may be used.

In this embodiment, a lithium battery is used as the power source, but a home AC power source (100 V 50/60 Hz) may be used.

In this embodiment, the metering unit is assembled to the general subscription telephone, but the metering unit and the general subscription telephone may be separately formed.

In addition, a display device such as a lamp or a buzzer may be attached to the meter reading unit when the sensor group is output when a general telephone is used.

Claims (1)

Sensor group (1) for automatic meter reading installed in a house and output meter reading information such as gas, water, electricity, safety device for detecting safety information such as disaster prevention, crime prevention, first aid, and the like, the meter reading information and safety information An input interface 200 to input, a CPU 300 for processing information from the input interface 200, and an IC 400 for outputting multi-frequency (MF) codes corresponding to the information from the CPU 300 And an electronic control circuit having an NCU 500 for transmitting the multi-frequency code from the IC 400 to the information center C via a transmission path. The housing information communication device configured to send an information retransmission request signal from the information center C to the terminal device 100 when erroneous information is transmitted from the terminal device 100 to the information center C. .

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