JP2917199B2 - Communication terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication terminal device for transmitting meter reading information such as water and gas to a center device.

[0002]

2. Description of the Related Art This type of communication terminal device is installed in each house and regularly issues meter reading information of water and gas consumed in each house to a center device via a telephone line. Such communication terminal devices are provided with ID codes (identification codes) each indicating a different house code for each house. When collecting meter reading information from each communication terminal device, the center device performs the communication terminal device communication. Is transmitted to the communication terminal device. The communication terminal device compares the ID code transmitted from the center device with the ID code registered in advance in the device itself, and transmits the above-mentioned meter reading information to the center device if the collation results match.

[0003]

Conventionally, when registering the above-mentioned ID code in such a communication terminal device, a construction worker previously sets the ID code at a site using a handy terminal or the like when newly installing the device. In addition, since the setting must be made for each house, there is a problem that the burden on the constructor increases and a setting error is caused.

[0004] Accordingly, an object of the present invention is to reduce the labor of a construction worker when setting an ID code in a communication terminal device, and to prevent a setting error.

[0005]

SUMMARY OF THE INVENTION The present invention in order to solve such problems is disposed in each individual in each house, and is connected via a telephone line Center <br/> coater apparatus Rutotomoni, Each dwelling
It has a memory in which a home-specific identification code is registered.
-Identification transmitted from the center unit when receiving an incoming call from the device
A communication terminal apparatus for transmitting meter reading information of gas and water, etc. Ru Tei consumed in the residential and code and the identification code of the memory matches the Center device, automatically call to answer an incoming call from the center apparatus Automatic response means,
Detecting means for detecting the presence or absence of storage of identification codes in the memory after the automatic response to the incoming call, the identification code is stored in the memory
Transmission means for transmitting an identification code registration request signal to the center device when the detection means detects that the identification code has not been transmitted, and registration means for registering in the memory an identification code returned from the center device in response to the transmission of the identification code registration request signal. Is provided.

[0006]

After automatically responding to an incoming call from the center device, it is determined whether or not the identification code is stored in the memory. If the identification code is not stored, an identification code registration request signal is transmitted to the center device. In response to this transmission, the identification code returned from the center device is automatically registered in the memory.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing one embodiment of a communication terminal device according to the present invention. In the figure, reference numeral 1 denotes a communication terminal device provided in each house, and each terminal has a telephone 2, a voltage alarm 3, a no-voltage alarm 4, an external sensor 5,
A handy terminal 6 and electronic meters 7 and 8 for detecting gas and water consumption are connected, and are connected to a telephone line (hereinafter referred to as line) L. It issues meter reading information such as gas and water.

Here, the communication terminal device 1 is configured as follows. That is, 11 is a protection circuit for protecting the device against overvoltage or the like from the line L, 12 is a filter for removing noise from the line L, 13A is an incoming call detection circuit for detecting an incoming call coming to the line L, and 13B is An incoming call storage circuit for storing the incoming call, a hook detecting circuit 14 for detecting a hook state of the connected telephone 2, a PB receiver 15 for receiving a PB signal from the line L, and a frequency 1650 Hz from a center device via the line L 1650H to detect the signal of
Z detection circuit, 17 is a PB generator for generating a PB signal, 1
8 is an attenuator.

An outlet disconnection monitoring unit 19 detects the outlet of the connected voltage alarm 3 and 20.
Is a voltage alarm monitoring unit that detects information of the voltage alarm 3, 21 is a voltage alarm monitoring unit that detects information of the connected voltage alarm 4, and 22 is information of the external sensor 5. An external sensor monitoring unit 23 is a handy terminal connection interface for exchanging data with the handy terminal 6 connected via the connector CN.
Reference numeral 26 denotes a telegram meter connection interface for inputting information from the connected telemeters 7 and 8, and reference numerals 25 and 27 denote disconnection / short-circuit monitoring units for detecting disconnection and short-circuit of the connected telemeters 7 and 8, respectively. is there.

Reference numeral 28 denotes a ROM 28A and a RAM 28
B that incorporates B and controls the entire communication terminal device 1;
Reference numeral 9 denotes a battery voltage drop detection circuit for detecting a voltage drop of the battery E, and reference numeral 30 denotes a drive power supply control circuit which converts the voltage VC of the battery E into a voltage VD and supplies it to each unit. Reference numeral 31 denotes a clock IC for generating time information, reference numeral 32 denotes an 8-second interval generation circuit which wakes up and activates the CPU 28 which is normally in a sleep state every 8 seconds based on information from the clock IC 31, and reference numeral 33 denotes a reset of the CPU 28. This is a reset circuit. SW1 is a switch, RY1 is a relay for forming a loop of the line L and outputting a dial pulse signal,
RY2 is a relay for disconnecting the telephone 2 connected to the apparatus, T1 and T2 are transformers, and AMP1 and AMP2 are amplifiers.

In the present apparatus, when an incoming call is received from the center device via the line L, the incoming call is detected by the incoming call detection circuit 13A, and furthermore, the incoming call storage circuit 13B
Is stored. On the other hand, the CPU 2 which is always in the sleep state
At 8, the wake-up is started when the operation is started from the 8-second interval generation circuit 32 via the interrupt terminal INT2. In this case, the CPU 28 first controls the driving power supply control circuit 30 to supply the power from the battery E to each part of the apparatus as the voltage VD prior to the start of the processing. Enter the gas and water meter reading information from 7, 8
Store it in M28B. At this time, the CPU 28 detects the incoming call state of the incoming call storage circuit 13A.

If this is the first incoming call, the fact that this is the first incoming call is stored in the RAM 28B, and a clear signal CLA is output to the incoming call storage circuit 13B to clear the incoming call state. Thereafter, the driving power supply control circuit 30
Clock IC 31 and 8 second interval circuit 32
The supply of power from the battery E to each part of the apparatus except for the above is stopped. Then, after the next 8 seconds, an 8 second interval generating circuit 3
The same processing is performed when the program is started from Step 2. In this case, if the incoming call from the previous time is continued, the RAM 28B stores that it is the second incoming call.

When the number of incoming calls from the center device continues for 20 seconds, the number of incoming calls stored in the RAM 28B becomes the third time, the CPU 28 turns on the relay RY to close the loop of the line, and automatically receives the incoming call. And the answer tone from the center device is received via the PB receiver 15. Subsequently, when the house code transmitted from the center apparatus is received via the PB receiver 15, the house code is checked against the house code of the own apparatus set in the RAM 28B. Then, as a result of the collation, when both the house codes match, the CPU 28 drives the PB generator 17 and outputs the meter reading information stored in the RAM 28B to the line L as a PB signal. That is, the meter reading information is output from the PB generator 17 to the line L via the attenuator 18 → amplifier AMP2 → transformer T1 → relay RY → switch SW1 → filter 12 → protection circuit 11 and transmitted to the center device.

If the house code is not set in the RAM 28B, the PB generator 17 is driven when a call is received from the center device, and a code registration request signal is transmitted to the center device as a PB signal. Then, the house code corresponding to the own device is transmitted from the center device as a PB signal. Upon receiving the house code via the PB receiver 15, the CPU 28 registers the house code in the RAM 28B.

When the CPU 28 wakes up, the outputs of the high voltage alarm 3, the low voltage alarm 4 and the external sensor 5 for detecting gas leakage and the like are output from the high voltage alarm monitor 21 and the low voltage alarm monitor, respectively. When the information is detected via the unit 22 and the external sensor monitoring unit 23, the information to that effect is transmitted to the center device as a PB signal via the line L via the above-described path. When an incoming call arrives from the center device and the telephone 2 responds to the incoming call, an output signal from the hook detection circuit 14 is given to the interrupt terminal INT1, and as a result,
U28 wakes up. In this case, the CPU 28
Similarly, the state of the incoming call storage circuit 13B is detected, and data communication processing is performed with the center device.

FIG. 2 is a flowchart showing the operation of the present communication terminal device for communicating with the center device.
Based on this flowchart, the CPU in the communication terminal device
The operation of 28 will be described in detail. As described above, when an incoming call from the center device continues for 20 seconds, the CPU 2
In step ST1, station line capture for capturing the line L is performed and an automatic response is made to this incoming call. Then, in this case, a 4-second timer is started in step ST2.

At step ST3, an answer tone is detected from the center device via the PB receiver 15, and at step ST4, the elapse of the 4-second timer is determined. If a tone is detected, the answer tone is returned from the answer tone transmitting circuit (not shown) to the center device via the line L in step ST5. Then, in step ST6, a 90-second timer is started, and the process proceeds to step ST7.

Next, in step ST7, the house code is R
Determine whether or not it is registered in AM28,
If a house code has been registered, it is determined in step ST8 that "there is a house code match?" That matches the registered house code with the house court transmitted from the center device. Then, as a result of the comparison of each of these house codes, the two codes match, and “match OK?” In step ST9.
Becomes "Y", the process proceeds to step ST10, and a communication process for transmitting meter reading information such as gas and water detected by the telegram meters 7 and 8 and stored in the RAM 28B to the center device is started.

If the house code from the center device is not detected after 90 seconds from the detection of the answer tone from the center device, and "N" in step ST8 and "Y" in step ST11, The incoming call unmonitored state is continued for a certain time so that no incoming call is received from the center device for a certain time. That is, after the 30-second timer is started in step ST12, the line (line L) is switched in step ST13.
Is released, and after detecting the expiration of the 30-second timer in step ST14, incoming call monitoring is started. Also, if the home code is received from the center device but does not match the one registered in the RAM 28B and is determined to be “N” in step ST9, similarly, the processing after step ST12 is executed. Then, the line L is released. Similar processing is performed also when an answer tone from the center device cannot be detected within 4 seconds despite the automatic response to the incoming call and the answer is "N" in step ST4.

If the house code is not registered in the RAM 28B and it is determined as "N" in step ST7, a code registration request signal is generated from the PB generator 17 in step ST16 and the center is transmitted via the line L. Send to device. Then, in response to the transmission of the code registration request signal, a house code registration process of receiving the house code and various system data returned from the center device via the line L via the PB receiver 15 and registering the same in the RAM 28B in step ST16. Execute.

As described above, the center code indicating the identification of each of the communication terminals installed in each house can be registered from the center device. In addition, various system data relating to the apparatus can be registered together with the registration of the house code. As a result, the setting of manual input by a constructor or the like becomes unnecessary when the apparatus is installed, and the labor of the constructor can be greatly reduced.

In this device, since each meter reading information on gas and water can be transmitted to the center device,
Each house code corresponding to gas and water can be registered in the house code. In such a case, for example, even if the meter reading information currently transmitted to the center device is only water supply, it is necessary to register the house code corresponding to the gas at the same time in consideration of the future.

That is, if the gas house code is registered later without registering both house codes, the gas house code is transmitted from the center device and the RAM 28B
Since the house code of the water supply is registered in, the two codes do not match, and the line L is opened. Therefore, automatic registration via the line L is not possible, so when registering a house code, both house codes of water and gas are registered. In addition, when the house code of the gas to be used in the future is temporarily registered together with the house code of the water supply, and the house code of the gas is formally registered later, the house code of the gas that has been temporarily registered is transmitted from the center device. Therefore, the house code can be easily changed and registered without opening the line.

[0024]

As described above, according to the present invention, after automatically responding to an incoming call from the center device, it is determined whether or not the identification code is stored in the memory. Transmits the identification code registration request signal to the center device and automatically registers the identification code returned from the center device in response to this transmission in the memory, so that when each communication terminal device is installed in each house, Therefore, the registration of the identification code for each communication terminal device is omitted, so that the labor of the constructor can be greatly reduced and the setting error can be prevented.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a communication terminal device according to the present invention.

FIG. 2 is a flowchart showing the operation of the above device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Communication terminal device 7, 8 Telegram meter 13A Incoming call detection circuit 13B Incoming call storage circuit 14 Hook detection circuit 15 PB receiver 16 1650Hz detection circuit 17 PB generator 20 Voltage alarm monitor 21 Non-voltage alarm monitor 22 External sensor monitor Unit 24, 26 Telegram meter connection interface 28 CPU 28B RAM 30 Driving power control circuit 31 Clock IC 32 8 second interval generation circuit E Battery

Continued on the front page (72) Inventor Akira Koizumi 3967-1010 Wada, Matsumoto-shi, Nagano Toyo Keiki Co., Ltd. (72) Inventor Yasutoshi Kurashina 3967-10-10, Wada, Matsumoto-shi, Nagano Toyo Keiki Co., Ltd. (56 References JP-A-7-79293 (JP, A) JP-A-2-52594 (JP, A) JP-A-5-233992 (JP, A) JP-A-63-61544 (JP, A) (58) Field surveyed (Int.Cl. ⁶ , DB name) H04M 11/00-11/10

Claims (1)

(57) [Claims] 1. A disposed each individual to each house, and is connected via a center device and telephone line Rutotomoni, each housing a solid
Has a memory in which an identification code is registered.
Identification code sent from the center unit when an incoming call
A communication terminal apparatus for transmitting de and the meter reading information for gas and water, etc. Ru Tei consumed identification code and a match in the housing of the memory to the Center device, automatically answer an incoming call from said center apparatus and terminating the automatic response means for, detecting means for detecting the presence or absence of storage of the identification code after the automatic response the memory to said incoming call, said
The detection means is sent back and transmission means for transmitting an identification code registration request signal to the detection result the center apparatus, to the transmission of the identification code registration request signal from the center apparatus that the memory the identification code is not stored A communication terminal device comprising: registration means for registering an identification code in a memory.