KR910000823B1 - Housing information transmitter - Google Patents

Abstract

No content.

Description

Housing information transmitter

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 meter reading unit

3: power 4: backup power

100: terminal device 200: input interface

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

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

C: Information Sensor 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 transmitter for transmitting various types of information generated in a house to an information management center (hereinafter referred to as an information center).

An automatic metering device such as gas and water electricity is installed in the house, and the metering information detected by the device is converted into a PB signal in the terminal device and transmitted to the information center via a public line of a telephone, and at the same time, the data is sent to a gas company. Housing information transmission devices that contact predetermined institutions are beginning to be put into practical use.

However, since the conventional home information transmitter transmits a PB signal from a terminal device, a prank call or a wrong call can be received from the pushbutton telephone of a non-subscriber who does not have a home information transmitter, so that the meter reads correctly from the management center. In some cases information could not be obtained.

An object of the present invention is to provide a housing information transmitting apparatus that can obtain accurate meter reading information in an information management center.

For the above purpose, the home information transmitting device of the present invention is provided with an automatic meter reading device which is installed in a house and outputs meter reading information such as gas, water and electricity, an input interface for inputting the meter reading information, and processing information from the input interface. A central processing unit, an integrated circuit for outputting a multi-frequency code corresponding to the information input from the central processing unit, and a network control device for transmitting the multi-frequency code from the integrated circuit to the information center via a transmission path. It has a terminal device including an electronic control circuit, and transmits after checking the reception with the information center (C) separately from the multi-frequency code corresponding to the information transmission high frequency code and the high-frequency code corresponding to the electrical information when transmitting the meter reading information. It is configured to.

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

Prior to meter reading information, accurate meter reading information can be obtained from the information center because misuse or error calls are prevented by sending a dedicated multi-frequency code to the information center that cannot be transmitted by a normal pushbutton telephone. Therefore, the issue concerning meter reading between residents and predetermined organizations such as gas companies is reduced.

The housing information transmitting apparatus of the present invention will be described based on the embodiment shown in the drawings.

1 and 2 are block diagrams schematically showing a house information transmitting apparatus 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 *, #, A, B, C, D from 0 to 9, and in the present embodiment, is a general subscription telephone set 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 informed of various kinds of information of the house which is regularly or irregularly transmitted from the terminal apparatus 100 through the public line L, and notifies each predetermined institution such as a gas company or dispatches personnel according to this information. At the same time, the information center transmits an information retransmission request signal to the terminal device 100 when erroneous information is transmitted from the terminal device 100.

The terminal device 100 is composed of 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 leak sensor S _{3 as} a disaster prevention sensor of a stabilizer. , A safety disconnection device (S ₄ ) and a spare port (P) for the signal from the automatic change device (not shown) of the tubular gas cylinder.

The gas meter GM is a probe that detects the flow rate of the supply gas to the gas equipment. The magnetic sensor element detects the rotation of the magnet attached to the rotating body which rotates in proportion to the gas flow rate and sends a 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 one gas cylinder of the connecting tube gas cylinder. After setting, compare the coefficient of the gas meter (GM) with the set capacity and send the first gas disconnection signal when the comparison result is the set value.

The gas disconnect sensor S ₂ is configured by setting the set capacity (for example, 80% of the capacity of the gas cylinder) at the time of filling the gas or replacing the gas cylinder in advance according to the capacity of the gas cylinder on the other side of the connected gas cylinder. After setting, the coefficient of the gas meter GM is compared with the set capacity, and when the comparison result coefficient = the set capacity, the second gas disconnection signal is sent.

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

Gas leak sensor (S ₃ ) is a safety device of the gas equipment, it generates an output of OV when inoperable, 6V in normal operation, 12V in the case of gasoline leakage (abnormal information). In addition, the gas leak sensor S ₃ detects a gas leak in the room when the gas leak in the room is equal to or higher than a predetermined value.

The battery disconnect sensor S ₄ always detects the voltage of the power supply 3 (V ₀ = 3.0 V) and when the voltage V _{1 of the} power supply drops 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 400 (IC), a network control unit (NCU) 500, a set value of a gas leakage capacity, and a gas disconnection flow rate. RAM 600, which converts data from the sensor group 1 into an electric signal, and ROM 700, which is a storage device of the control level of the entire system, as a storage device for the set value, the set time, the set voltage of the power supply, and the user code. Have

The input interface 200 includes a pulse input port 201 which is an input port of the gas meter GM, a gas disconnect sensor S ₁ (S ₂ ), a gas leak sensor S ₃ , and a battery disconnect 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 provides disaster prevention, such as an automatic meter reading mechanism that outputs each signal to the integrated circuit 400 by an input from the input interface 200, a gas remaining amount determining mechanism of the gas cylinder, and a gas leakage. It has a mechanism and a tire 301 is provided.

The integrated circuit 400 transmits to the NCU 500 a MF signal obtained by combining the frequencies corresponding to the input from the CPU 300 as a selection signal group.

The NCU 500 connects a telephone outside the home to a general subscription phone T and receives a reception control device for inputting an outgoing signal of the telephone outside the home, and a telephone or information outside the home from the general subscription phone T or the CPU 300. Transmission control device for outputting transmission signal to center (C), automatic meter reading mode for connecting CPU and information center (C), and mode converter for switching communication mode for connecting general telephone (T) and telephone outside home Has

The power source 3 is a lithium battery (3V), and can be used continuously for 7 years.

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 capacity 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 coefficient = the set value by comparing the coefficient from the accumulator memory 32 with the set value; The data synthesis processor 37 performs data combining processing of the coding processor 35 for converting the coefficient value into a transmission code, and the data processor 36 and the coding processor 35 of the signals from other sensors. Information via the public line L of the telephone by the transmission control apparatus 38 of 500 And it transmits to the emitter (C).

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

In step 701 of the figure, it is determined whether or not it is the transmission timing timer time when the gas is read in the automatic dial set for each house. That is, since the meter does not need to be sent every hour during the meter reading, the house transmits the information to the information center (C) at 10:00 am on the first day of the month, and at some other house at 10:05 am on the first day of the month. . The interval between the scheduled time of transmission between a house and another house shall be at least 5 minutes and shall be determined between 1 and 28 days of each month. Among the safety information such as disaster prevention, crime prevention, and first aid, in the present embodiment, when the mantissa setting report is output, transmission can be performed at any time regardless of the transmission timing timer. In step 701, when it is not the transmission timing timer time (NO), step 701 is repeated. When in use (YES) in step 701, 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 the 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 no 3 seconds have elapsed (NO), step 706 is repeated, and when 3 seconds have elapsed (YES), automatic dialing is performed to the information center C (step 707). Next, it is judged whether or not the information transmission instruction signal (MF signal "#" in later) is received from the information center C (step 708). When it is received in step 708 (YES), the transmission form shown in Table 1 which is described later is transmitted based on the transmission protocol flow chart according to each regulation of the transmission control apparatus (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 or not the transmission form has elapsed 3 seconds after transmission (step 711). In step 711, the transmission control ends when 3 seconds have elapsed (YES), and when step 3 has 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). In step 714, step 714 is repeated when 5 seconds have not elapsed (NO), and when step 5 has elapsed (YES), step 702 or less is repeated again.

In addition, when it is determined that the information transmission instruction signal is not received from the information center C (NO) in step 708, it is determined whether or not the number of times of transmission has been three times after automatic dialing (step 715). In step 715, when it is not performed three times (NO), the DC circuit is opened (step 716), and it is then judged whether 5 seconds have elapsed (step 717). When 5 seconds have elapsed (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 times of transmission is three times (YES) in step 715, it is determined whether 15 seconds have elapsed (step 718). When no more than 15 seconds have elapsed (NO) at step 718, the process proceeds to step 716. When 15 seconds have elapsed (YES) and when the reception frequency is the second time (YES) at step 712, the DC circuit is opened (step 719). Next, it is determined whether automatic dialing is performed again (step 720). When automatic dialing is not performed at step 720 again (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 the automatic dialing is performed again at step 720 (YES), it is judged whether or not the recognition is performed after the third automatic dialing (step 722). When the third automatic dial is not performed (NO) in step 722, it is determined whether 5 minutes have elapsed since the DC circuit is opened (step 723). When 5 minutes have passed (YES) at step 723, step 702 or less is repeated, and when 5 minutes have not passed (NO), step 723 is repeated.

TABLE 1

TABLE 2

Table 1 shows the transmission format used for transmission control. In Table 1, all of the selection signals used in the transmission format are MF signals (multi frequency codes). For example, numbers 0 to 9, and # and B symbols are used. This MF signal has a transmission time period of 0.1 digit for 0.1 second and a transmission rate of 5 characters for 1 second.

The multi-frequency code (MF signal) "B" at the left end of Table 1 is the start text (Start of text), and the "B" code not used in the ordinary telephone T is used. Is prevented. The ID of Table 1 contains the user code number of six digits (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 the division following the user number transmitted earlier.

03 in Table 1 shows the relationship between the information type and the code number. The code number is extracted from Table 2, and the number in the second row is entered.

In this embodiment, the data indicates that gas leakage has occurred in the house, and at the same time, it is data for transmitting information on gas reading.

The gas meter reading of Table 1 is a meter reading detected by the above-mentioned automatic meter reading system of gas, and the number of six rows (any of 0-9) enters.

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. For example, if the data is B1,2,3,4,5,6, B0,3,1,2,3,4,5,6, CK ##, then CK = 5, that is, 1 + 2 + 3 + In 4 + 5 + 6 + 0 + 3 + 1 + 2 + 3 + 4 + 5 + 6 = 45, the number 5 of units of units is used, and CK is for error detection of transmission information.

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

In this case, 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 sent to the terminal device 100 in the case of a transmission form error or a MF signal error. do. If there is a mistake after receiving the division code, the information retransmission request signal is sent within 2 seconds. If no code is received, the information retransmission request signal is transmitted within 2.5 seconds. If another code is received without receiving the information start code, it is determined as invalid information and the DC circuit is opened. The number of requests for retransmission of information shall be twice.

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

In this embodiment, the MF signal "B" is used as the information transmission-only multi-frequency code. However, A, B, and D may be used. If the signal is anything other than a signal confused with a pulse signal of a telephone or the like, any signal from the terminal device may be used. Also good.

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 connected. In addition, when using a general telephone in the meter reading unit, a display device such as a lamp or a buzzer that displays the sensor group may be attached.

Claims (1)

A sensor group 1 installed in a house for automatic meter reading for detecting meter reading information such as gas and water electricity, an input interface 200 for inputting the meter reading information, and a CPU for processing information from the input interface. IC 400 for outputting the multi-frequency (MF) code corresponding to the information from the CPU 300 and the multi-frequency code from the IC 400 through the transmission path, and the information center C. In a house information transmitting device having a terminal device (100) including an electronic control circuit having an NCU (500) for transmitting to a house, the multi-frequency code dedicated to information transmission before the meter reading information at the time of the electric meter reading information transmission ( And a high frequency code corresponding to the MF) code and the electrical information, so as to enable the transmitter after confirming an incoming call with the information center (C).

Images