KR970000460B1 - Automatic calling apparatus of existence of person - Google Patents

Abstract

A method and system for monitoring remote sensing device is provided in which the monitoring operation is capable of being hold when the user picks up the phone. The system comprises a plurality of sensors used for sensing home securities; an analog to digital converter for converting the output signal from a sensor into a digital signal; a controller in response to the signal input from the sensor to produce a drive signal for the output device of the customer; a transmitter for sending the information about a state of emergency to the central management system via a communication line; and a line sensing device for detecting occupation of the communication line and sending the line state to the controller by sensing voltage difference occurred from variation of the output impedance between the transmitter and the phone.

Description

Unmanned automatic detection device and control method

1 is a block diagram showing a customer system of the present invention unattended detection automatic notification device.

2 is a block diagram showing the configuration of a management center of the present invention unattended detection automatic notification device.

3 is a signal flow diagram of the management center data storage and management program of the present invention unattended detection automatic notification device.

Figure 4 is a flow diagram of the reception function signal of the present invention unattended detection automatic notification device.

5 is a flowchart of a transmission function signal of the unattended detection automatic notification device of the present invention.

Figure 6 is a signal flow diagram illustrating a control method of the present invention unattended detection automatic notification device.

7 is a diagram showing a voltage variation of a communication line according to the use of a telephone and a transmitter.

* Explanation of symbols for main parts of the drawings

1: Sensor group 3: Melt multiplexer

4: A / D Converter 8: Backup Battery

10: central processing unit 20: transmitting device

21: line detection device 30: computer

31: modem L: communication line

T: Telephone

The present invention relates to an unattended sensing automatic notification device and a control method for transmitting information on an abnormal state occurring in various buildings or houses to a management center through a communication line, and having the management center process or cope with the information.

Conventionally, automatic detection and signaling devices for gas leakage, fire detection and crime prevention in homes or buildings where ordinary telephones exist have been developed to keep pace with automation in all areas of society. Such a device can arbitrarily adjust the set value of the gas flow rate according to the number and use of the gas equipment, as disclosed in Korean Patent Publication No. 90-8633, and automatically transmits the abnormal state information to the central management center when an abnormality occurs. For example, the housing information communication device which automatically cuts off the supply of gas when the set value is exceeded.

In the conventional apparatus, the consumer device installed in the house detects an abnormal state such as crime prevention, fire, or gas leak through the information detection sensor group, and responds to the gas shutoff valve, the caution alarm buzzer, the alarm indicator, the external buzzer, etc. It outputs the output of the meter and counts the number of pulses from the gas meter, compares it with the set point, and activates the shutoff valve if it is larger than the set point. Doing.

The control program of the transmitting function first determines whether the telephone of the customer is in use, determining whether the incoming call is in progress when not in use, converts the trunk line when not in call, and selects the extension. Step of judging, forming a station loop when not selected, automatically dialing to the destination set in the notification setting switch, and judging whether or not the management center is receiving a response signal. After executing the protocol operation program, determine whether it has elapsed for a certain period of time when it is not receiving, release the station loop when it has not elapsed, and if the number of automatic dial transmissions has been reached three times after it has elapsed. Judging and opening the station loop. The conventional house information communication device as described above has a disadvantage in that the house-side telephone cannot be used during transmission of abnormal information in a transmission function by protocol operation.

In the present invention, in order to transmit the above-mentioned abnormal information to the management center, priority is given to the voice call of the consumer telephone user, and a line detection function is built in the transmitter so that the telephone user can receive the call even during the voice call. For example, an object of the present invention is to provide an unattended detection automatic notification device capable of stopping work and waiting and a control method thereof.

In order to achieve the above object, the unmanned automatic detection device of the present invention comprises a user sensor device including an information sensor group for detecting abnormality information of the use-side equipment by at least one sensor, a warning indicator, a caution alarm buzzer, and the like. It has a customer system for controlling operation, and this customer system has a memory device (ROM) for storing an input interface, a central processing unit (10), a transmitter (20), a telephone (T), an output interface, and a control procedure of the entire system. In the unattended detection automatic notification device configured to receive the user side abnormal information from the management center through a communication function by connecting the customer system to a telephone using a communication line, detecting a hook signal when using the telephone during the abnormal information transmission. Detects the signal according to the voltage difference and waits until the on-hook signal is generated. Properly and a transmitting device having a detection line.

According to the above configuration, the unmanned automatic detection device according to the present invention can always diagnose the abnormal state in the operation state of the main equipment without any additional personnel in the house or building of the user side, and in case of an abnormality, the voice call of the telephone user of the receiver is the first priority. It is possible to send the abnormality information to the management center while keeping the. Hereinafter, the unmanned automatic detection device of the present invention will be described based on the embodiment shown in the drawings. Figure 1 shows a block diagram of a customer system of the unattended detection automatic notification device of the present invention. The consumer device includes a variety of sensor groups (1) for the detection of crime prevention, disaster prevention, first aid, etc .; An amplifier 2 for amplifying the output voltage of the sensor; An A / D converter 4 for converting an analog signal from the sensor group 1 into a digital signal; Perform a system-wide control procedure pre-programmed in the internal storage device (ROM), and generate calculation and abnormal state information and drive signals of the customer-side output device 9 in response to the signals input from the sensor group 1. A central processing unit 10; In the unattended sensing automatic notification device comprising a transmitting device 20 for transmitting the information data to the processing system of the management center by using the communication line L when an abnormal condition occurs, the transmitting device 20 and the telephone 21 ) Is connected to a common communication line (L), and the line sensing device (21) for detecting the state of use of the transmitting device and the telephone and applying it to the central processing unit (10) by continuously detecting the use of the communication line. ) Is characterized in that the technical configuration features. The method of detecting whether the communication line L is used is a device for detecting a voltage difference caused by a change in the output impedance value of the transmitter and the telephone that act as a load on the communication line when the transmitter or the telephone is used. The technical configuration features that the use of each of the telephones can be detected.

The unmanned automatic detection device of the present invention configured as described above can detect the use of a transmission device or a telephone by detecting a voltage induced in the communication line by using a normal voltage detecting means capable of detecting an electric vehicle. . This will be described in detail as follows. FIG. 7 is a graph showing a voltage flowing through a communication line. As shown in the figure, when a telephone or a transmitter is not used, a voltage having an absolute value of 48 V appears in the communication line as shown in section A of FIG. 7A. However, when one of the transmitter or the telephone is used, the voltage flowing through the communication line by the output input feeder (usually 600 Hz) of the transmitter or the telephone drops to 12V as shown in section B of the figure. At this time, when the other transmitter or telephone is used, the combined input and output feeders of the telephone and the transmitter are changed (the output input feeders of the transmitter 600 and the output input feeders of the telephone 600 Hz). Parallel impedance = 300 kHz) The voltage of the communication line is lowered to 6 V (section C), and the line sensing device 21 detects this and applies it to the central processing unit 10 so as to transmit a telephone or a transmission device. You will be able to know whether each is used. In other words, when not using both the telephone and the transmitter, the communication line shows a voltage of 48V (A and E sections), and when one of the phones or the transmitter is used, the voltage of 12V is indicated (B , Section D), when both the telephone and the transmitter are used, the voltage of 6V is displayed (section C). By detecting this, it is possible to know whether the telephone is used during data transmission (transmitter in use). In addition, the consumer system is usually powered by a stabilizing power supply 7 that changes AC power to DC power and a backup battery 8 for power failure.

The transmission device uses a public telephone line or a dedicated line as a communication line, and has a telephone line connection and control function like a normal modem device therein and a line detection function during data transmission to provide abnormal information in case of an abnormal state of a customer system. Send to the management center. In addition, the various sensor groups 1 of the consumer system include, for example, water level sensors in water tanks and sewage reservoirs, and weight sensors installed in coin vaults for vending machines. Of course, it is possible to detect the use status and to detect abnormal information in the operating state of the main equipment of the vending machine, such as installing a security sensor. Figure 2 shows a block diagram of the management center system of the present invention unattended detection automatic notification device. The management center system stores a modem 31 connected to a customer system and a communication line, a computer 30 for processing associations by inputting demodulated digital data through the modem, and data processed by the computer. An auxiliary memory device 32, an uninterruptible power supply (UPS) 33, a display monitor 35, a line printer 34, a key board 36 for processing data entered into the management center even in the event of a power failure. It consists of peripheral devices. Data input to the computer 30 of the management center system is first stored in the main memory and is subjected to arithmetic processing. When the stored data is to be stored for a long time or used for another program or device, the data is filed and stored in the auxiliary storage device 32 such as a disk. The processing program for the data storage and management scheme is described below with reference to the signal flow chart of FIG. That is, after start-up, the system is initialized (step 101), parameters are input from the console to the computer, and then the parameters of the circuit are set (steps 102 and 103). Then, the A / D change is started and the converted value is read out (steps 104 and 105), the existing timer is started, the counted value is read out (steps 107 and 108), the stored data is processed as necessary (steps 106 and 109), and then terminated. The sequence of steps is repeated until step (step 110, 111). 4 is a flowchart illustrating a reception signal for receiving abnormality information through the modem 31 in the management center. Here, if the received data is detected, a response signal is sent to the consumer device (step 202), and it is checked whether the data is still being received and accepted until the end (step 203), and when this data indicates an abnormal state, an alarm buzzer or The alarm lamp is operated to be displayed (step 204), and the procedure of automatically lifting abnormality information through the output device connected to the computer (step 205) is repeated. 5 is a signal flow diagram of a transmission program performed in the customer system of the unmanned automatic detection device according to the present invention, and is largely composed of a self-diagnosis operation, an abnormal state detection, and an error information notification operation of the transmission device in the customer system. By performing the self-diagnosis operation, it prevents the wrong signal from being transmitted to the management center and detects its own error to prevent the malfunction. Also, the customer-side telephone can be used during data transmission after the line is connected to the management center by the abnormal state detection operation. If the user detects off-hook by checking the use of the program at all times, it puts it on standby and executes a series of programs that try to transmit again when the phone is finished using.

This will be described in detail as follows.

6 is a signal flow diagram illustrating a control method of the unmanned automatic detection device according to the present invention. As shown in the drawing, the control method of the unmanned automatic detection device according to the present invention is a signal output from the sensor group 1 of the customer system. An abnormal state detection step 310 of continuously detecting whether an abnormality has occurred due to the customer system; As a result of performing the abnormal state detection step 310, as it is determined that an abnormality has occurred in the customer system, the management center makes a call to the destination using a modem until connected to the system of the management center through the transmitter 20. A connection step 320; After performing the management center connection step 320 is connected to the management center, and comprises a data transmission step 330 for detecting the use of the telephone by a predetermined method and transmitting data indicating the abnormality of the customer system. It is characterized by the technical configuration. The data transmission step 330 may include: a data transmission step 331 of transmitting data indicating an abnormality of the customer system in a predetermined transmission format after the management center connection step 320 is performed; During the data transmission step 331, the use of the telephone is detected by detecting the voltage of the communication line by a predetermined method until the data transmission is completed. A telephone use determination step 332 of stopping the transmission of data in progress until the use is completed, and retrying the transmission of the data by a predetermined method; After performing the charge use determination step 332, if the data transfer is completed is detected, if the data transfer is not completed, the data transfer determination step 333 to return to the data transfer step 331 is included. It is characterized by the technical configuration. Hereinafter, the operation and effect of the present invention configured as described above in detail. First, when the sensor group 1 of the customer system detects a signal and sends the signal to the central processing unit 10, it is determined whether there is an abnormal state of the signal, and if there is no abnormality, the abnormal state detecting step 310 returns to an initial state. Perform. At this time, if it is determined that there is an error in the customer system in the abnormal state detection step 310, an attempt is made to connect to the modem 31 of the management center through the transmission apparatus, and a response signal from the modem (step 202 of FIG. 4) is received. Lean out. In this case, when the modem is not connected with the modem of the management center (line busy state) or when there is no response signal, the management center connection step 320 is repeated to retry the operation after a predetermined time. On the other hand, when performing the management center connection step 320 is connected to the management center system transmits specific data indicating the abnormal state of the customer system. During data transmission, it is determined whether or not a voltage drop (off hook signal) indicating the use of the consumer telephone is detected. When a voltage drop (off hook signal) is detected, the controller switches to standby and reconnects after a certain time. Make it. Also, if the telephone is not used (on hook state), transmission continues, and the above-described communication line detection function is repeated until the transmission is completed. When the transmission is completed, it returns to the initial state and continues the self-diagnosis and abnormal state detection of the transmitting apparatus.

In order to activate the system in the unmanned automatic notification device, when the power failure is detected, the backup battery may immediately notify the management center of the power failure alarm, and when the communication line connected to the management center is in line busy state, invents the main computing device. Install the flash memory (EPROM) and real-time clock in the customer system of the automatic notification device of the unattended detection, and perform the update function of the telephone number connected to the management center system when transmitting data from the transmitter, and update the telephone number The call can be enabled and the real time clock can be corrected. However, in the above embodiment according to the configuration of the present invention, the line sensing device 21 is configured to directly detect whether the telephone and the transmission device are used, and apply it to the central processing unit to pause the data transmission. However, within the scope not departing from the technical spirit of the present invention, the communication line, which is commonly connected to the telephone and the transmitter, is directly connected to the central processing unit 10, so that the voltage of the communication line in the central processing unit 20 is reduced. Note that it can be configured to detect the.

As described above, according to the present invention, since the management center and a plurality of customer systems are connected to the telephone line so that information from the sensor attached to the main facility is transmitted to the management center without inconvenience to use the customer's telephone, Through the replacement and expansion of the sensor unit, the monitoring service for various customer-side equipments is enabled, and thus, there is an extraordinary effect of analyzing and storing the information received from the management center to provide a boost to service work.

Claims (4)

Various sensor groups for detecting crime prevention, disaster prevention, and emergency; An amplifier for amplifying the output voltage of the sensor; An A / D converter for converting an analog signal from the sensor group into a digital signal; A central processing unit which performs a system-wide control procedure pre-programmed in an internal memory, and generates arithmetic and abnormal state information and a drive signal of a customer-side output device in response to a signal input from the sensor group; An unattended sensing automatic notification device comprising a transmitting device for transmitting the information data to a processing system of a management center when an abnormal condition occurs, wherein the transmitting device and a telephone are connected to a communication line commonly connected to the communication line. And a line detecting device for detecting a state of use of a line and detecting a state of use of a transmitting device and a telephone and applying the same to the central processing unit. The method of claim 1, wherein the method for detecting the use of the communication line detects a voltage difference caused by a change in an output input feeder value of the transmitter and the telephone, which acts as a load on the communication line when the transmitter or the telephone is used. The automatic detection device for free detection, characterized in that it is possible to detect whether each of the transmitter or the telephone is used. An abnormal state detection step of continuously detecting whether an abnormality has occurred in the customer system because of detecting a signal output from the sensor group of the customer system; A management center connection step of making a call to a destination by using a modem until it is determined that an abnormality has occurred in a customer system as a result of performing the abnormal state detection step; Unattended detection comprising a data transmission step of performing the management center connection step and connecting to the management center, detecting whether the telephone is used by a predetermined method and transmitting data representing an abnormality of the customer system. Control method of automatic notification device. 4. The method of claim 3, wherein the data transmission step comprises: a data transmission step of transmitting data indicating an abnormality of a customer system in a predetermined transmission format after performing the management center connection step; During the data transmission step, the use of the telephone is detected by detecting whether the telephone is used by detecting the voltage of the communication line by a predetermined method until the transmission of data is completed, and when the usage of the telephone is detected. A telephone use determination step of stopping the transmission of data in progress until the next time, and retrying the transmission of the data by a predetermined method; After performing the telephone use determination step, detecting whether or not the transmission of the data is completed, if the data transfer is not completed, including the data transfer completion determination step to return to the data transfer step, automatic unattended detection Control method of the notification device.