KR950011191B1 - Crime prevention and remote checking system using catv network - Google Patents

Abstract

clearing a watchdog, initiating a port, clearing a value of register, initiating a timer and an interrupt turning on an LED which displays a check state and reading data within a self-recovery memory; resetting basic data of the memory if contents of the memory is not normal and when a current state is a test state, testing on/off state of the LED and state of the self-recovery memory; reclearing the watchdog, activating the timer and interrupt, and transmitting warning data according to key input to an external warning processing unit; controlling a front gate opening/closing alarm not to be generated during front gate opening/closing is permitted; and storing data on the meta side to a transmission buffer, if an examination value request signal of the meta is transmitted through the RF transceiver.

Description

Operation method of subscriber terminal of crime prevention and remote metering system using cable TV network

1 is an overall configuration diagram of a method disaster prevention and remote meter reading system to which the present invention is applied.

2 is the overall processing flow chart of the operation method of the security and remote meter reading system.

3 is a schematic hardware diagram of a subscriber terminal of the present invention.

4 is a flowchart of the operation of the subscriber terminal according to the present invention.

5 is a flowchart of processing according to the alarm sound holding time control process.

* Explanation of symbols for main parts of the drawings

40: keypad 41: input and output port matching circuit

42: control unit 43: input and output buffer

44: indicator 45: RF transceiver

The present invention relates to a method for operating a subscriber terminal installed in a subscriber's premises in a crime prevention and remote metering system using a bidirectional CATV optical transmission network.

Recently, the problem of security disasters caused by changes in the home environment, such as the nuclear family of the family, the increase in the number of housewives, has been socialized, and accordingly, the security disaster prevention system using general telephone lines has been widely used. However, such a system using a general telephone line has problems such as low performance, low processing speed, and complicated structure.

Accordingly, in order to improve the processing speed and the performance, in recent years, a crime prevention and remote metering system using a bidirectional CATV optical transmission network has been required as a technical problem.

Accordingly, an object of the present invention is to provide a method of operating a subscriber terminal applied to a crime prevention and remote metering system that improves the performance and processing speed of a system using a bidirectional CATV optical transmission network.

In order to achieve the above object, the present invention is applied to crime prevention and remote metering system using CATV network, and is used for input and change of subscriber password, input and change of address, arming and releasing of various sensors, and input of alarm signal. And a keypad, which is connected to the meta through the keypad, various sensors, and a meta matcher, and connected to a control device to perform a signal matching function between the keypad and the input / output port matching circuit. It is composed of a memory and controls the subscriber's alarm processing and remote meter reading and self test function, and is connected to the RF modem through the coaxial network, the digital signal from the control unit as an RF signal, from the RF modem An RF transceiver for converting a signal of the digital signal into a digital signal, and connected between the RF transceiver and the controller to provide a signal matching function A method of operating a subscriber terminal that includes a given I / O buffer, comprising: clearing a watchdog, initializing ports, clearing register values, initializing timers and serial ports, initializing registers, interrupts, and self-checking The first step of reading the data in the self-healing type memory and determining whether the contents of the memory are normal.If the contents of the memory are not normal, the basic data of the memory is reset and the self-check status Turn off the LED indicating whether the status is a test state, and if it is a test state, the second step of testing the on / off state of the LED, the state of the self-healing memory, the watchdog is cleared again, and the timer and the interrupt are Is activated and alarm occurs due to subscriber's key input at regular intervals. Controls the alarm sound holding time for each alarm and transmits alarm data according to key input to an external alarm processing means, and controls the door open / close alarm not to occur during the door open / close allowance time due to the arming and disarming of the security sensor. And a fourth step of processing the key value input accordingly, and a fifth step of collecting data of the meta side and storing it in a transmission buffer when the meter reading value request signal is transmitted from the outside through the RF transceiver. Characterized in that it comprises a.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1 is an overall configuration diagram of a security and remote meter reading system to which the present invention is applied, in which 1 is a node part, 2 is a meter reading part, 3 is a crime prevention disaster management part, 4 is a subscriber part, 5 is an RF modem, 6 Is a splitter, 7 is a dedicated telephone line modem, 8 is CATV optical transmission network, 9 is coaxial network, 11, 14, 16 is printer, 12 is node computer, 13 is communication control port, 15 is remote meter reading computer, 17 is crime prevention An operational computer, 18 represents a subscriber terminal, 19 represents a meta matcher, and 20 represents a pulsed meta.

As shown in the figure, the security and remote monitoring system to which the present invention is applied is provided with a node computer 12, a communication control port 13, and a printer 11, connected to a bidirectional CATV network 8, and each port. Each subscriber is divided into several small groups to poll for status detection signals, to receive signals transmitted from subscriber terminals 18 in the subscriber's premises, and to read the remote meter request signals from the remote meter computer 15 at the subscriber terminals 18 in the subscriber's premises. And receiving the remote meter reading data transmitted from the subscriber terminal 18, and classifying the received data listed above into the remote meter reading data and the anti-disaster prevention data, and the remote meter reading computer 15 and the anti-virus disaster prevention operation computer 17 Transmission of the corresponding data, i.e., the transmission and reception of all the data between the disaster prevention and operation management computer 17 and the remote meter reading computer 15 and the subscriber terminal 18 and the switch of the classified data It is provided with a node unit 11, which serves as a role, and connected to the node 1, and has a remote meter computer 15 and a printer 14, and sends meter data when necessary for reading of various meta devices 20 in a subscriber's house. The operator transmits a request signal to the subscriber terminal 18 via the node unit 1, and stores and stores various meta information of the subscriber received through the node unit 1 by subscriber and meta type. The meter reading unit 2 which provides data stored at the time and the node unit 1 connected to the node unit 1 and equipped with a crime prevention and disaster management computer 17 and a printer 16, and transmitted by the node unit 1, situation By comparing the change-specific data and the data on the installation of various sensors installed in the subscriber's premises stored in the subsidiary storage device, the received change status data is the operation status data of the sensors and keypads installed in the subscriber's premises (fire alarm,To identify whether the device is leaking alarm, theft alarm, intrusion alarm or subscriber presses the keypad, etc.), if it is a crime prevention alarm, perform the security disaster prevention work according to the built-in processing procedure according to the type of sensor where the alarm occurred. When the keypad is pressed to arm or release various sensors installed in the subscriber's premises, a crime prevention and disaster management unit (3) stores the state change file of the subscriber and a CATV optical transmission network (8) to the node unit (1). Crime prevention by modulating the digital data transmitted from the node unit 1 through the CATV optical transmission network 8 to the coaxial network 9 on the subscriber side or vice versa. An RF modem 5 for transmitting the disaster prevention signal and the remote meter reading data signal to the coaxial network 9, and a subscriber terminal 18 connected to the RF modem 5 with the coaxial network 9 and connected with various sensors; And a meter matcher 19 and various pulse meters 20 to transmit various meta-values to the node unit 1 according to the remote meter reading request signal transmitted from the node unit 1, When the sensing signal of the sensor or the subscriber presses the keypad for arming or disarming the sensor, the key value pressed on the keypad is transmitted to the node unit 1 and the power port via the node unit 1 from the crime prevention and disaster management unit 3. A subscriber unit 4 is provided for carrying out the remote control signal when it is transmitted.

Referring to the operation of the system according to the monitoring of the alarm status of the subscriber, the node computer 12 divides the subscribers into five groups in units of 1000 subscribers, and sequentially monitors the status monitoring signals from the first to the 1000th subscribers in five groups. The subscriber terminal 18 to transmit. Accordingly, the communication control ports 13 to 5 are allocated five subscriber ports for accommodating 1000 subscribers, and the ports 6 to 8 are for the remote meter reading computer 15 and the security disaster prevention operation computer 17, and crime prevention. There will be a total of eight ports allocated for the disaster prevention company. In addition, if the status monitoring signal is sequentially transmitted from 1 to 1000 times, it takes a search time proportional to the number of subscribers, making it difficult to control in real time. Therefore, 1000 subscribers are classified into several small groups and are commonly applied to small groups. When the status detection signal is transmitted and the signal of the troubled subscriber is detected, the group polling method is applied to re-investigate only the relevant small group to retrieve the troubled subscriber in real time.

In the process of transmitting data to the subscriber terminal 18, an RF modem 5 is used to transmit digital data from the node computer 12 on the coaxial network 9. The RF modem 5 The digital data is modulated by the frequency modulation shifting method and transmitted to the coaxial network 9. The subscriber station 18 then inverts the RF data transmitted through the coaxial network 9 into digital data by the frequency demodulation shifting method. The data converted into digital data are analyzed by the central processing unit embedded in the subscriber terminal 18, and the analyzed data is collected by the central processing unit when the addresses are the same compared to the unique addresses stored in the terminal. Provide data in a prescribed format. The data provided as a response are transmitted back to the node computer 12 via the RF modem 5, and the node computer 12 analyzes the received data and transmits the data to the node computer 12 when it is determined to be alarming data and situation change data. It is transmitted to the printer 11 and the crime prevention disaster management computer 17 connected. The data transmitted from the node computer 12 to the crime prevention disaster prevention operation computer 17 is compared with the registered status of the alarm sensor for each subscriber registered inside the crime prevention disaster prevention computer, and the type of alarm is determined, and the status of the alarm is changed according to the alarm status. After categorized by category, the subscriber history and related history data already built on the screen are displayed on the screen.

According to the menu selection method displayed on the screen according to the type of alarm, the operator operates emergency contact means to the relevant institutions such as police station, fire department, hospital, and other public offices, and inputs the operator's bookkeeping details that occurred in handling the alarm. According to the predetermined alarm processing sequence, the alarm-related business unit is received and the execution result is sent to the node computer 12. The node computer 12 selects the data requiring notification to the subscriber according to the processing result, and then the selected data is transmitted to the subscriber terminal 18. Upon receiving the data, the subscriber terminal 18 analyzes the contents of the data to indicate the situation processed by the node computer 12 and the crime prevention computer 17, or to display a beep tone.

If the data received from the node computer 12 is an armed or released signal of a sensor installed in the subscriber's home, the data is stored in the state change file of the subscriber and used for analysis of the received alarm later.

Next, referring to the operation of the system according to the remote meter reading, when the remote meter reading operator wants to read the meter, the meter reading menu is selected among the main menus on the remote meter reading computer 15, and then the desired meter reading among the sub-menus of all subscribers, meta, and subscribers is performed. Select. According to the selected menu, the remote meter reading computer 15 transmits the meta number, subscriber number, and meter reading request signal to the node computer 12 for the meter reading. The node computer 12 sends the meter reading request message to the corresponding subscriber terminal 18 through the RF modem 5 according to the meta number and the subscriber number, and the subscriber terminal 18 sends the meter reading request message of the meta matcher. The meta matcher 19 transmits the data obtained by integrating the information from the meta 20 to the subscriber terminal 18 by the meter request message. Subscriber terminal 18 stores various meter reading values sent from meta matcher 19, and sends the meter reading value of the corresponding meta device as response data when node computer 12 pulls its own address. In addition, the node computer 12 classifies the data answered during polling, and transmits the data classified as the meter reading data to the remote meter reading computer 15. The remote meter reading computer 15 stores the meter reading data, the subscriber number meta number, and the date and time of reading as one record and stores them in the metering file of the auxiliary storage device, and allows the operator to use them for checking or issuing a book and issuing a bill when necessary. do.

2 is an overall process flow chart according to the operation method of the security and disaster prevention and remote meter reading system to which the present invention is applied.

First, look at the process of the crime prevention, initialize all the equipment (21) and turn on the various sensors (22). While investigating whether one of the sensors is operating or the subscriber pressed the keypad for disaster or outsider penetration (23), if the keypad or sensor is detected, the subscriber terminal (18) detects it and the node computer The alarm signal is sent to (12), and the alarm status is displayed on the subscriber terminal 18 (24, 25). The node computer 12 displays the alarm status on the screen and prints the alarm status (26). The alarm generating subscriber number and the alarm number data are transmitted to the disaster prevention operation computer 17 (27).

Then, the security disaster prevention operation computer 17 transmits the response data for the alert to the subscriber terminal 18 through the node computer 12, and is stored in the received data for each writer and situation change and its own auxiliary storage device. By comparing the data on the installation of various sensors installed in the subscriber's premises, the data of the situation change received are various sensors and keypads installed in the subscriber's premises such as fire alarm, gas leakage alarm, theft alarm, intrusion alarm or the subscriber presses the keypad. If it is a crime prevention alarm by grasping the operation status of the operation, the operator operates the emergency contact means to the relevant institutions such as police station, fire department, hospital and other public offices and processes the alarm based on the menu selection method displayed on the screen according to the type of alarm. To perform alarm-related tasks in accordance with a predetermined alarm processing sequence, such as inputting the operator's bookkeeping details. If the subscriber presses the keypad to arm or release the sensor installed in the subscriber's premises, the subscriber records it in the status change file of the subscriber (28), and the subscriber terminal 18 displays the alarm response data transmitted. When the alarm release data is transmitted from the operating computer 17, the release state is displayed and returned (29 to 31).

Next, referring to the processing procedure for the remote meter reading, the meta-matcher 19 converts the pulse generated by the power meta after initialization into a meta value and accumulates the data (22). When the remote reading request signal is transmitted from the remote metering computer 15 to the node computer 12 to the subscriber terminal 18 (23), the subscriber terminal 18 examines the metering data accumulated in the meta-matcher 19. And transmits the meter reading value, the unique number and the meta number value to the node computer 12, and the node computer 12 classifies it into the metering data among the various data received and organizes it into a unique number, the meta number and the metering data, and then reads the remote metering computer. Transfer to (15) (32). The remote meter reading computer 15 stores the received data in the auxiliary storage device, prints it to the printer 14 when the operator requests the preparation of the bill and the account book, and finishes.

3 is a schematic hardware diagram of a subscriber terminal to which the present invention is mounted, in which 40 is a keypad, 41 is an input / output port matching circuit, 42 is a controller, 43 is an input / output buffer, 44 is an indicator, and 45 is an RF transceiver. Indicates.

The keypad 40 is used for inputting or changing the subscriber password, for inputting or changing the address, for arming or releasing various sensors, for inputting an alarm signal, and for input / output port matching circuit 41. A signal matching function between the 40 and various sensors and the meta matcher 19 is performed. The control unit 42 connected to the input / output port matching circuit 41 is composed of a CPU and a memory which is a storage device, and controls an alarm generation process, a remote meter reading and a self test function on the subscriber side. The indicator 44 indicates the overall operating state of the subscriber terminal, the RF transceiver 45 is connected to the RF modem 5 via the coaxial cable 9 to convert the digital signal from the control unit 42 into an RF signal, It is responsible for converting the RF signal from the RF modem 5 to digital, and the input / output buffer 43 is connected between the indicator 44 and the RF transceiver 45 and the control unit 42 to provide a signal matching function. In charge. The present invention is composed of a control program executed by the controller 42, and the processing procedure thereof will be described in detail with reference to FIG. 4 below.

4 is a flowchart of a method for operating a subscriber terminal of the present invention.

Referring to the schematic operation of the controller 42, when power is supplied, self-diagnosis is performed to check the state of each input / output port and memory, and when there is no error, the data input port is operated to start receiving data. At this time, if there is no data or abnormal data is input, the display 44 displays the data abnormal state, and when normal data is input, control is started. When the control is started, the unique number assigned to the control unit 42 is compared with the input number, and if it is normal, the collected alarm data from the sensor input port is output together with the unique number. Keypad matching is performed by periodically reading the keypad data, and data on various functions such as passwords, unique numbers, and arming of the sensors are stored in the auxiliary storage device so that data can be preserved even when the power is removed.

Looking at the detailed processing flow chart, when the program is started, the watchdog (WATCHDOG) is cleared (46) and the values of each port of the microprocessor and the data transmission and reception of the RF transceiver (45) are prevented to prevent the program from malfunctioning. Initialize the control port value (47). After clearing the various register values inside the microprocessor (48), initializing the serial port for communication with the timer (49), initializing each register and interrupt (50), and turning on the LED indicating self diagnosis. (51), data (password, port connection status of each sensor, etc.) in the self-healing memory is read (52) to determine whether the contents of the memory are normal (53).

If it is determined that the contents of the memory are not normal, the basic data of the memory is reset and the data is recorded (54, 55). After the process is completed, the LED 56 indicating the end of self-diagnosis is turned off to indicate that it is in the normal operation standby state, and then it is determined whether the current state is the test state of the equipment (57). A hardware test 58 is performed to test the state of the self-healing memory, and if it is not in the test state, the watchdog is cleared again for normal operation (59), and the timer and interrupts are activated (60).

Then, after determining (61) whether or not a delay of 4 ms, which is an internally set time for data transmission and reception of various alarms, controls the holding time of the alarm sound for alarm sound generation for alarm processing described in detail in FIG. Processing 62 is performed, and if not elapsed, various alarm data and key input values are transmitted 63 to the node computer.

If there is no response signal from the node computer (64) even after one minute has elapsed, the data is retransmitted (65).

Then, after a certain time (which is set to 45 seconds in the present invention) used for arming and releasing security sensors, the delay flag is checked (66) to confirm that 45 seconds have elapsed since the gate is opened, that is, when the sensor is armed, The door open alarm is triggered after a 45 second delay after the completion of the operation.If the sensor is running, the door is opened and the door open alarm for the door is determined by determining whether the subscriber's motion to release the sensor within 45 seconds has passed. If the process of setting is performed (67) and 45 seconds have not elapsed, the next process is carried out. The reason why the alarm processing for the gate is operated with a margin of 45 seconds after the arming of the sensor for general alarm, unlike the general alarm, is usually equipped with a security sensor when the subscriber is out of the house. As a result, the subscriber is delayed for a certain time in consideration of the time to arm the sensor and reach the door to lock the door. If the sensor is equipped with all the sensors including the door open detection sensor without the delay, the door open detection sensor is operated when the door is opened and the door is opened in order to arm the sensor and go out. .

Next, the flag of the key input state is checked and a key input value is received (68). When the inputted key value is compared with each key value data defined therein, the beep sound is generated, the LED of the keypad is turned on to indicate the state, and the processing of the input key value to be described later is performed (69). If it is received from the computer 15 by checking whether the meter matching data transmission request signal of the meter matching unit 19 has been received (70), the internal meter reading data is examined to determine whether to collect data of the meta matching unit (71). If it is determined that re-collection is necessary, it requests 72 data transmission to the meta matcher 19, receives the meta reading value from the meta matcher, stores it in the transmission buffer, and clears the watchdog again. Return to the procedure and repeat the procedure below.

In detail about the process of processing the input key value, if the input key value is an alarm button such as a fire button or a medical button, set and return the corresponding alarm butt flag.If the numeric key is stored, the numeric key value is memorized and the last key value is If it is "#", the first key value is returned if it is 0, if it is 1, all alarm sounds are released, if it is 2, the password is changed, if it is 3, the arming delay time of the sensor is changed, and if it is 4, the address of the subscriber terminal 17 is changed. If the last input key value is "*" and the first key value is not 4 digits, it returns. If it is 4 digits, check if the key value is the same as the arming code. If it is the same, disarm the sensor and transmit the data to the node computer. Return if the four-digit key value is different from the armed code.

5 is a flowchart of processing according to the alarm sound holding time control process (62 of FIG. 4).

First, the fire button input state flag is checked (74) to generate an alarm sound when the fire button is pressed, and to remove the alarm sound (75) when it is time to switch the alarm sound (75). Similarly, the medical button and the other alarm button are the same as the fire button (77 to 79), and the open alarm of the door is the same as the fire alarm sound (80 to 82). Then, if the beep flag that sounds when each key is pressed is set (83), it checks whether the set duration inside has elapsed (84), and if it has elapsed, clears the beep (85), and switches the various status indication LEDs. It is determined whether the time is up (86), and when the switching time is reached, the on / off is switched (87) and returned.

Therefore, the present invention operating by the above-described processing procedure has the effect of accurately and quickly processing the alarm generation and the meta meter reading in the subscriber's home.

Claims (1)

Applied to security prevention and remote meter reading system using CATV network, keypad 40 used for input and change of subscriber password, input and change of address, arming and releasing of various sensors, input of alarm signal, and the keypad ( 40) and an entrance / exit port matching circuit 41 which is connected to the meta through various sensors and meta matching devices and is connected to a control device to perform a signal matching function therebetween, and is connected to the input / output port matching circuit 41 and the CPU. And a control unit 42 configured to control an alarm generation process, a remote meter reading, and a self test function of a subscriber, and a digital signal from the control unit connected to an RF modem through a coaxial network. An RF transceiver 45 for converting a signal from an RF modem into a digital signal, and an input / output connected between the RF transceiver 45 and the controller 42 to perform a signal matching function. A method of operating a subscriber terminal that includes a fur, which clears the watchdog, initializes the port, clears the value of the register, initializes the timer and serial port, initializes the register and interrupt, and indicates that it is self-checking. To turn on the LED and read the data in the self-healing type memory, and determine whether the contents of the memory are normal. If the contents of the memory are not normal, reset the basic data of the memory and indicate that the status is self-checking. Turn off the LED and judge whether the status is in the test state, and if it is in the test state, clear the watchdog, clear the watchdog again, and activate the timer and interrupts. Alarm sound holding time according to alarm occurrence by key input of subscriber at regular time interval The third step of controlling for each alarm and transmitting information data according to key input to an external alarm processing means, and controlling the door opening and closing alarm not to occur during the gate opening / closing allowance time for arming and releasing the security sensor, and the key value accordingly. A fourth step of processing an input; and a fifth step of collecting data from the meta side and storing the data on the meta side when the meta reading value request signal is transmitted from the outside through the RF transceiver 45, and transmitting the data to the outside. Method of operating a subscriber terminal comprising a.