KR900007593B1 - Information communication system - Google Patents

Abstract

The system having a security function for detecting fire, thief or emergency and a monitor function for monitoring electricity or gas usage comprises a terminal equipment including a miroprocessor to transmit the final code indicating the end of text, and a management center including a function to detect error in the transmitted information and to provide a re-transmission requirement signal to the terminal equipment. The re-transmission requirement signal differs from the final code.

Description

Housing information transmitter

1 is a block diagram of a transmission unit of one embodiment of the housing information transmission window of the present invention.

2 is a schematic diagram of an embodiment of a housing information transmitting apparatus of the present invention.

3 is a block diagram of transmission of gas automatic inspection of a CPU, detection of a replacement time of a gas cylinder, gas leakage, and the like according to an embodiment of the house information transmitting apparatus of the present invention.

4 is an operational flowchart of transmission control in one embodiment of the house information transmitting apparatus of the present invention.

* Explanation of symbols for the main parts of the drawings

1: device for transmitting housing information 2: terminal value

3: transmission unit 5: microprocessor (CPU)

6: Network Control Unit (NCU) 8: Power Circuit

21 gas meter meter 22 gas leak sensor

23: reset switch C: management center

L: Telephone line network T _l , T ₂ , T ₃ : Standard telephone

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a house information transmitting device for transmitting various types of information such as meter reading information such as gas, water and electricity in a house, and safety information such as disaster prevention, crime prevention, and first aid to a management center.

Install various safety devices such as disaster prevention, crime prevention, first aid, etc. in the house, and set up automatic metering devices such as gas, water and electricity, and call the management center for various information such as safety information and metering information detected by safety devices and automatic metering devices. BACKGROUND OF THE INVENTION Housing information transmitters having electric control circuits for transmission over a line are beginning to be put into practical use.

However, in the conventional home information transmitting apparatus, even if the transmission data of various information is wrong, the management center incorrectly receives the correct transmission data. For example, in the case of meter reading information, the error of the integrated value is determined by the general subscriber and the gas company. It is a cause of great dispute with the organization.

Therefore, in the Japanese Patent Application No. 60-251655, the present applicant has proposed a housing information transmission window in which retransmission can be requested when there is a mistake in the transmission data.

However, in the housing information transmitting apparatus of Japanese Patent Application No. 60-251655, the final code indicating the end of the information transmission to the management center and when the management center receives the final code are transmitted when there is a mistake in the transmission data. Since the information retransmission request codes are the same, the final code transmitted by the house may be mistaken for the information retransmission request code from the management center, and may be transferred even if there is no error in the transmitted data.

SUMMARY OF THE INVENTION An object of the present invention is to provide a house information transmitting apparatus which prevents a malfunction such as recognizing a final code transmitted from a house side as an information retransmission request code from a management center and retransmitting even if there is no error in the transmission data.

In order to achieve the above object, the home information transmitting apparatus of the present invention comprises a terminal device for transmitting various information in a management center and a house to the management center through a transmission path, and installed in the terminal device, and transmitting information to the management center. A microprocessor, which is a house-side electric circuit that transmits a final code indicating the end of a signal, and when the transmission information contains false information when a final signal is received from the house-side electric circuit installed in the management center. A configuration including an electric circuit on the management center side for transmitting another information retransmission request code to the terminal device is adopted.

The home information transmitting apparatus of the present invention has the following functions and effects.

The housing information transmission window of the present invention has the following effects and effects.

Since the final code indicating the end of the information transmission to the management center and the information retransmission request code transmitted when there is a mistake in the transmission data when the management center receives the final code, It is possible to prevent malfunctions such as mistaken information sent from the management center and retransmission even if there is no error in the transmitted data.

Next, an embodiment of the house information transmitting apparatus of the present invention will be described based on the drawings.

FIG. 1 shows one embodiment of the housing information transmitting apparatus of the present invention, and FIG. 2 shows an electric control circuit applied to one embodiment of the housing information transmitting apparatus of the present invention.

1 indicates a device for transmitting house information. 2 shows a terminal device installed in one subscriber house (hereinafter referred to as a house) I among a plurality of subscriber houses I, II, III, ... as shown in FIG. T ₁ , T ₂ , T _3... Denotes a general subscription telephone (hereinafter referred to as a telephone). L is a transmission path and represents a telephone line network including a switching system (telephone station, switchboard).

C denotes a management center equipped with an electric control circuit. The management center (C) is used for meter reading information such as gas, water and electricity in the house (I), which are periodically or irregularly transmitted from the terminal device (2) through the telephone line network (L). Various information such as safety information may be transmitted, and according to this information, notification may be made to a predetermined institution such as a police station, a fire station, a hospital, a gas company, or a neighboring subscriber's house, or a personnel may be dispatched.

The terminal device 2 comprises a gas meter meter 21, a gas leak sensor 22, which is an automatic meter of gas, a transmission unit 3 including a reset switch 23 and an electric control circuit.

The gas inspection meter 21 is an automatic meter for detecting the amount of gas used in a gas machine. The gas detecting meter 21 detects the rotation of a magnet installed in a rotating body that rotates in proportion to the amount of gas used by a magnetic sensor element, and sends a pulse signal proportional to the amount of gas used. do. In addition to the automatic meter reading of gas, automatic meter reading such as water and electricity may be performed.

The gas leak sensor 22 is a safety device for a gas machine, and generates an output of 0 V when inoperable, 6 V in normal operation, and 12 V in gas leakage. The gas leak sensor 22 detects the gas leak in the house I when the gas leak in the house I is more than predetermined value.

As other sensors, security sensors, topical sensors, and emergency button for turning on the subscriber at the time of emergency, etc. are installed to transmit various safety information such as crime prevention, disaster prevention, first aid, etc. You may be able to send directly to predetermined engines, such as the subscriber's house.

The reset switch 23 is a pushbutton switch in this embodiment, and is operated by the personnel of the gas company at the time of replacing the gas cylinder.

The transmission unit 3 includes a gas meter meter 21, a gas leak sensor 22, an input unit 4 of the reset switch 23, a microprocessor (CPU) 5 and a network controller (NCU) 6 ), A communication connector 7 for connecting a terminal for connecting the management center C via the telephone T ₁ and the telephone line network L, and a power supply circuit 8 thereof.

The CPU 5 sets a set value of the gas leakage flow rate, a set value of the gas disconnection flow rate (for example, an integrated value in which the amount of gas used is 70% of the gas cylinder and an integrated value in which the amount of gas is used 85% of the gas cylinder). Memory of the automatic metering timer time of the gas meter reading information to the management center C, initial information such as the set voltage value of the power supply circuit 8, the user's telephone number, and the telephone number of the management center C, and the whole system. Storage of the control procedure and automatic gas reading.

NCU (6) is a call detection of the state of use of the line network (L), i.e., telephone (T ₁₎ of the incoming call status of the line in use detection circuit (61), telephone (T ₁₎ for detecting a call status (call mode) A ring tone detecting circuit 62 for detecting, a center signal detecting circuit 63 for detecting a reception code from the management center C, a dial signal generating circuit 64 for generating a dial signal, a telephone T ₁ and a terminal Circuit switching relay 65 for switching the telephone line network L with the apparatus 2, the switch 66a of the DC circuit 66 opened and closed by the circuit switching relay 65, and the switch 66b for telephone connection. And a power supply control circuit 67 and a pad switching circuit 68 for lowering the average level of the information transmission code below the level of the selection code such as the telephone number in the state. Among them, the transmission control circuit 60 is constituted by the center signal detecting circuit 63, the dial signal generating circuit 64, the circuit switching relay 65 and the pad switching circuit 68.

The center signal detecting circuit 63 has an automatic level control for correcting a voltage of a receiving code to be a constant value, a function of detecting a receiving code, and boosting an input voltage to 6V in the present embodiment required for detecting the receiving code. do.

The dial signal generating circuit 64 is an apparatus for generating an information transmission code at the same time as generating the selection code of the called party (management center C), and each of the two frequency groups of the high frequency band and the low frequency band in the voice band. Generates a multi-frequency (MF) code combined by frequency.

The power supply control circuit 67 is provided between the transmission control circuit 60 and the switch 66a, and when the switch 66a is turned on, the power supply circuit 8 and the transmission control circuit 60 are connected to the power supply circuit. The power of (8) is supplied to the transmission control circuit 60.

66c represents a diode bridge circuit, 66d represents an impedance transformer, 66e represents a field effect transistor, and 66f and 66g represent a diode.

To this end, the power supply circuit 8 includes a main battery 8b which is always connected to the power supply network L via the resistor 8a, and the main battery 8b is connected by a current supplied by the telephone circuit L. It is always installed to charge.

3 shows a block of automatic inspection of gas by the CPU 5, detection of replacement time of the gas cylinder, and transmission of gas leakage.

The automatic meter reading of the gas counts the number of pulses output by the gas meter reading meter 2l and calculates the amount of gas used in the gas cylinder, and the gas amount calculated and processed by the gas amount calculating processor 51a. The computerized memory processing unit 51b for storing the integrated value of the amount of used, the reading date and time comparison processing unit 51e for comparing the date and time stored in the automatic metering timer time storage unit 51c with the date and time counted by the timer 51d, and the timer ( When the date and time counted by 51d) reaches the date and time stored in the automatic metering timer time memory 51c, the gas usage code and processor 51f encoding the integrated value of the computerized memory processor 51b with the transmission code are used. The transmission processing unit 50 transmits the data to the management center C. FIG.

The trip accumulating storage unit 52a, which detects the replacement timing of the gas cylinder, resets to the initial value by the rising trigger when the reset switch 23 is turned on, and stores the accumulated value of the amount of gas used after the reset. And the integrated value stored in the trip accumulation memory 52a and the integrated value corresponding to 70% of the gas cylinder gas stored in the first gas disconnection capacity setting unit 52b, are compared to the integrated accumulated memory processor 52a. Is stored in the first comparison processing unit 52c and the trip integration storage unit 52a, which output the first gas disconnection signal when the accumulated value stored in the control unit is larger than the integrated value stored in the first gas disconnection usage setting unit 52b. The accumulated value stored in the trip integrated storage processor 52a is the second gas disconnected amount by comparing the accumulated value with the gas bombe gas stored in the second gas disconnection amount setting portion 52d corresponding to 85% of the accumulated value. Stored in the setting unit 52d A second comparison processing unit 52c which outputs a second gas disconnection signal when greater than the integrated value, and a first gas disconnection code which inputs the first gas disconnection signal and encodes the first gas disconnection signal with a transmission code; And a gas usage encoding processing unit 52g which inputs the processing unit 52f and the second gas disconnection signal and encodes the second gas disconnection signal into the transmission code, and transmits to the management center C by the transmission processing unit 50. Send to

In the gas leakage transmission, the gas leakage signal is encoded by the transmission code by the gas leakage encoding processing unit 53a, which inputs the gas leakage signal generated when the gas leakage sensor 22 detects the gas leakage, and is transmitted by the transmission processing unit 50. Send to the management center (C).

Next, the operation of this embodiment will be described based on the flow chart of the automatic inspection of the gas of FIG. 4, the detection of the replacement time of the gas cylinder, and the transmission control of the gas leak.

It is judged whether or not the gas leakage signal 12V is input from the gas leakage sensor 22 (step S1). When the gas leakage signal 12 is not input (NO), it is determined whether the first gas disconnection signal or the second gas disconnection signal is input (step S2). When the gas leakage signal 12V, the first gas disconnection signal, or the second gas disconnection signal is not inputted (NO), the gas is automatically dialed to the management center C set for each house (I, II, III…). It is judged whether or not the meter reading information transmission time timer time (that is, the date and time counted by the timer 51d reaches the date and time stored in the automatic meter reading timer time storage unit 51c) (step S3). When the transmission time is not the timer time (NO), the step S1 or less is repeated. When the transmission time is at the timer time (Yes) or when the gas leakage signal (12V), the first gas disconnection signal or the second gas disconnection signal is input (Yes), the telephone number of the management center (C) is read (step) S4).

Next, it is judged whether or not the line use detection circuit 61 detects the school mode (step S5). When the line use detection circuit 61 detects the call mode (Yes), the step S5 is repeated.

When the line use detection circuit 61 does not detect a call mode (No), is the ring tone detection circuit 62 detecting an incoming call to determine whether an incoming call is being made from a telephone outside the house (I). It is judged whether or not (step S6). When the ring tone detection circuit 62 detects an incoming call output (Yes), the step S5 is repeated. When the ringing tone detection circuit 62 does not detect an incoming call (No), it is output to the circuit switching relay 65 to turn on the switch 66a, and to turn off the switch 66b to turn off the telephone line network L. The dial signal generating circuit 64 is connected to connect the DC circuit 66 (step S7).

The telephone number of the management center C previously stored in the CPU 5 is transmitted from the dial signal generation circuit 64 to start automatic dialing (step S8).

The management center C judges whether the incoming call is being started by the automatic dial of the terminal device 2 (step S9).

At the call arrival date Yes, it is determined whether or not the center signal detection circuit 63 has detected the O code, which is an information request signal, from the management center C (step S10).

When the center signal detection circuit 63 detects the O code (Yes), it transmits the information transmission code based on the transmission format described later from the dial signal generation circuit 64 so as to read the periodic meter reading information of the gas and the first gas. Transmission information such as disconnection information, second gas disconnection information, or gas leak information is transmitted to the management center C (step S11).

Next, it is judged whether or not the transmission information by the transmission code is transmitted to the management center C three times (step S12). This enables retransmission even if there is a mistake in the transmission information.

Here, when the transmission information is not transmitted three times (No), after transmitting the transmission information by the transmission code to the management center C, the O signal, which is an information retransmission request code, is detected from the management center C by the center signal. It is judged whether or not the circuit 63 has detected (step Sl3). When the center signal detection circuit 63 detects the O code (Yes), the step S11 or less is repeated. When the transmission information is transmitted three times (Yes) or when the center signal detection circuit 63 does not detect the O code (No), it is output to the circuit switching relay 65 to turn off the switch 66a. The switch 66b is turned on to connect the telephone line network L and the telephone T ₁ to turn off the DC circuit 66 (step S14). The operation then ends.

In step S9, when the center signal detection circuit 63 does not detect the O code (No), it is determined whether or not 25 seconds have elapsed after the automatic dialing (step S15).

When 25 seconds have not elapsed (No), step S15 is repeated. When 25 seconds have elapsed (Yes), it is output to the circuit switching relay 65, the switch 66a is turned off, the switch 66b is turned on, and the telephone line L and the telephone T _l are connected to each other. The circuit 66 is opened (step S16).

Thereafter, it is determined whether 5 seconds have elapsed (step S17). When 5 seconds have not elapsed (No), step S17 is repeated. When 5 seconds have elapsed (Yes), it is determined whether or not the number of transmissions has reached three times after automatic dialing (step S18).

If the number of transmissions is not three (No), repeat step S5 or less again. It is then determined whether 5 minutes have elapsed (step S19). When 5 minutes have not elapsed (No), step S19 is repeated. When 5 minutes have elapsed (Yes), it is determined whether or not the number of transmissions has reached nine times after the automatic dialing (step S20). When the number of transmissions is not 9 (No), the step S5 or less is repeated again. The operation ends when the number of transmissions is 9 (Yes).

In step S10, when the center signal detection circuit 63 does not detect the O code (No), it is determined whether or not 25 seconds have elapsed after the automatic dialing (step S21).

When 25 seconds have not elapsed (No), step S21 is repeated. When 25 seconds have elapsed (Yes), it is output to the circuit switching relay 65, the switch 66a is turned off, the switch 66b is turned on, and the telephone line network L and the telephone T _l are connected to each other. The circuit 66 is opened (step S22). It is then determined whether 5 seconds have elapsed (step S22). When 5 seconds have not elapsed (No), step S23 is repeated. When 5 seconds have elapsed (Yes), it is determined whether or not the automatic dial is performed twice (step S24). When no automatic dialing is performed (No), step S5 or less is repeated again. When the auto dial is performed twice (Yes), the operation ends after that.

One

Table 1 shows transmission formats used in transmission control.

In this embodiment, the gas reading, gas disconnection (1) and (2), gas leakage and preliminary information of the gas are transmitted from the terminal device 2 to the management center C by this transmission format.

In Table 1, the transmission codes used for the transmission format are all MF signals (Multi frequency code), for example, numbers 0 to 9 and any of *, #, A, B, C, and D codes. Select one and use it.

The MF code "B" at the left end of Table 1 is a start text, and by using the "B" code which does not exist in a normal telephone, it is possible to prevent erroneous or misleading calls.

The ID of Table 1 contains the user's telephone number which is the number (0-9) of 6 acts. Thereby, the management center C can quickly determine which house is the transmission format from first.

The delimiter "B" in Table 1 indicates the division of information following the user telephone number previously transmitted. 03 in Table 2 shows the relationship between information types and code numbers. As shown in Table 2, code numbers are extracted and two lines of numbers are included. In the present embodiment, the gas leak is generated in the house, and at the same time, it is a transmission format for transmitting gas readings.

The meter reading value of the gas of Table 1 is the integrated value detected by the said automatic meter reading system of said gas, and the number (0-9) of 6 rows is contained. As shown in FIG. 3, the transmission code of the integrated value of the gas is encoded according to each digit by the gas usage encoding processor 51f which encodes the integrated value of the gas accumulation storage processor 5lb with the transmission code. That is, the number of inputs of the first line of the integrated value is 3 times, the number of inputs of the 6th line of the accumulated value is 2 times, and the number of inputs of the 7th of the third line of the integrated value is 3 times. The rows are written in decreasing order. For example, when the integrated value is 763.45m ³ , the transmission code of the integrated value is 777663. The pattern of the transmission code of the integrated value of gas is not limited to this embodiment. The transmission code of the integrated value of this gas detects the error of the integrated value of the gas in the terminal device 2 or the management center C. FIG. Therefore, when the numeric code is wrong, since the information retransmission request (0) code is transmitted from the management center (C) to the terminal device (2), it is not necessary to transmit the transmission format to the management center (C) several times.

CK (Character check code) of Table 1 contains the number (one of 0-9) of one line of the number obtained by counting all the numeric codes in said transmission code.

This CK detects an error in the transmission format in the management center (C). When the numeric code of the CK is wrong, the information retransmission request (O) code is transmitted from the management center C to the terminal device 2.

Thereby, the management center C can receive the correct transmission format.

The symbol "#B" at the right end of Table 1 is an end text of end and indicates the end of the transmission format.

Here, after the transmission format is transmitted to the management center C side (after receiving the start text code), when there is a mistake in the MF signal, the integrated value, and the transmission format, the terminal apparatus 2 has a final (B). The information retransmission request (0) code preset to be different from the code is transmitted.

When there is a mistake in the transmission format when the last (B) code of the "#B" code indicating the end of the transmission format to the management center (C) and the last "B" code are received by the management center (C). Since the information retransmission request (0) codes are different from each other, the house (I) side confuses the final (B) code transmitted by itself with the information retransmission request (O) code from the management center (C). Even if it is not there, malfunctions such as resending can be prevented.

After receiving the division (B) code, if there is an error, the information retransmission request (O) code is transmitted within 2 seconds. If no code (B) code reception is received, the information retransmission request (O) code is transmitted within 2.5 seconds. If any other code is received without receiving the information start (B) code, it is determined to be invalid information and the DC circuit is opened. In the present embodiment, the B code is used as the maximum sign, but any number from 0 to 9 or any of *, A, B, C, and D codes may be used. In the present embodiment, the O code is used as the information retransmission request code, but any of numbers 1 to 9 and *, #, A, B, C, and ID code may be used as the information retransmission request code.

In the present embodiment, a telephone line network is used for the transmission path, but radios using a communication line such as a dedicated line or a communication satellite may be used as the transmission path.

Claims (2)

The management center C, a terminal apparatus 2 for transmitting various kinds of information in the house to the management center C via the transmission path L, and the terminal apparatus 2 is installed in the terminal apparatus 2 to transmit information to the management center. The microprocessor 5, which is a house-side electric circuit for transmitting a final code indicating the end of a signal, is installed in the management center C, and when the last code is received from the house-side electric circuit, there is a false information in the transmission information. And a control circuit (C) side electric circuit for transmitting the information retransmission request code different from the final code to the terminal window (2). The apparatus of claim 1, wherein the information requesting code is a predetermined code different from the final code.

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