KR950011194B1 - Crime prevention and remote checking system using catv network - Google Patents

Abstract

erasing an operation area of RAM as an auxiliary memory, initiating a meta connecting port, defining various internal values, enabling an interrupt and determinating whether power is normal; if the power is normal and an examination data request signal is received from a subscriber terminal port, transmitting an examination value of corresponding meta to the subscriber terminal, and if a self examination request signal is received to a meta matching device tester port, performing a self checking process; if the interrupt indicating pulse data is generated from the meta connection port is generated, detecting in order port number and increasing by 1 a meta value of the port where the pulse data is generated to store the increased value in the auxiliary memory; and if the power is not normal, altering an auxiliary power application mode only if data from the meta connecting port exists and when the interrupt is generated, performing the detecting step.

Description

Meta-matcher Operation Method of Crime Prevention and Remote Metering System using CATV 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 crime prevention and remote meter reading system.

3 is a schematic hardware diagram of a metamatcher.

4 is a processing flow chart of the operating procedure according to the present invention.

5 is a flowchart illustrating an interrupt on a meta connection port.

* Explanation of symbols for main parts of the drawings

40: auxiliary memory 41: RS-485 transceiver

42: central control unit 43: input and output matching device

44: pulse controller

The present invention relates to a method of operating a meta matcher installed in a subscriber's premises in a method disaster prevention and remote meter reading 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, the present invention devised to solve the problems of the prior art, while improving the performance and processing speed of the system using a bidirectional CATV optical transmission network, while remotely controlling the power and electrical equipment of the subscriber, and various pulsed meta The purpose of the present invention is to provide a method of operating a meta-matching device installed in the subscriber's home of the crime prevention and remote metering system that controls and reads automatically.

In order to achieve the above object, the present invention provides an RS-485 transceiver for receiving a command from a subscriber terminal in a subscriber's home and transmitting meta data to the subscriber terminal in response thereto, and a waveform of pulse data input from the meta. A pulse controller that delivers an accurate square wave by removing the noise, and integrates pulses from the meta through the pulse controller to convert them into meter reading data, and stores the accumulated data in auxiliary memory and transmits data from subscriber terminals. A method of operating a meta-matching device applied to a crime prevention and remote metering system with a central control unit for transmitting the accumulated meter reading value data to a subscriber terminal via an RS-485 transceiver when a request is received. Clears the working area and initializes the ports for meta-connections Defining the internal value, enabling the interrupt and determining whether the power supply is normal, and if the power supply is normal and the meter data request signal is received from the subscriber terminal port, the meter reading is transmitted to the subscriber terminal. When the self test request signal is received from the matching tester port, the second step of performing self-check and if the interrupt occurs that the pulse data is generated from the meta connection port are searched for the port number in order, the meta of the port where the pulse is generated. A third step of increasing the value by 1 and storing and returning the value to the auxiliary storage device; and as a result of performing the first step, if the power is not normal, the auxiliary power is applied only when there is data from the meta connection port while operating as an auxiliary power. After changing to, perform the third step only when an interrupt occurs from the meta connection port. And a step 4.

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 drawing, the night crime prevention and remote meter reading system to which the present invention is applied includes a node computer 12, a communication control port 13, and a printer 11, connected to a bidirectional CATV network 8, and each port thereof. 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, classifying the received data listed above into remote roughness data and crime prevention data, and remote meter reading computer 15 and crime prevention disaster prevention operation computer (17). Transmission of the corresponding data, i.e., the transmission and reception of all data between the crime 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 The node unit 1 which functions as a role, and which is connected to the said node 1, is provided with the remote metering computer 15 and the printer 14, and it sends out the metering data at the time of the need of the meter reading of the various meta devices 20 in 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, end 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 disarming the sensor, the key value pressed on the keypad is transmitted to the node unit 1 and the power is transmitted from the crime prevention and disaster management unit 3 to the node unit 1 via the node unit 1. A subscriber unit 4 is provided for carrying out the port 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 was transmitted and the signal of the problem pressurizer was detected, the group polling method was applied to search the relevant small group and search for the problem 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 being categorized, 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. The alarm-related work is performed in accordance with the predetermined alarm processing order, 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 stored in 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 the arming or releasing signal of the sensor installed in the subscriber's home, it is stored in the subscriber's state change file 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 a flow chart of the entire process according to the operation of the crime 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). Continue to investigate whether one of the sensors is operating or the subscriber has pressed the keypad for reasons of 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 operating computer 17 (27).

Then, the security disaster prevention operation computer 17 transmits the response data for the alarm to the subscriber terminal 18 through the node computer 12, and is stored in the received subscriber-specific situation change data 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 devices installed in the subscriber's premises such as fire alarm, gas leakage alarm, theft alarm, intrusion alarm, or the subscriber presses the picad. If it is a crime prevention alarm by grasping the operation status of CAD, the operator operates emergency contact means to police, fire department, hospital, and other public offices according to 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 notes. If the subscriber presses the keypad to arm or release the sensor installed in the subscriber's premises, it is stored 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 disaster prevention 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 (14) (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 detailed configuration diagram of a meta-matching device 19 in which the present invention is implemented, in which 40 is an auxiliary memory device, 41 is an RS-485 transceiver, 42 is a central controller, 43 is an input / output matcher, and 44 is a pulse. Represent each controller.

The meta matcher 19 shown in the drawing is installed in each subscriber's premises, accumulates and stores pulses from pulse meta, such as electricity, water, and gas, and then stores the subscriber terminal (in accordance with a meter reading request of the remote meter reading computer 15). 18) is a device that transmits the integrated value of each meta. The RS-485 transceiver 41 transmits a command from the subscriber terminal 18 to the central control unit 42, and transmits data that the central control unit 42 wants to transmit to the subscriber terminal 18. It is responsible for the function to deliver. The pulse controller 44 removes noise from various pulse metas, removes noise, shapes the correct square wave, and sends the pulse controller 44 to the central controller 42 through the input / output matching unit 43, and is a well-known circuit part composed of a resistor and a capacitor. The input / output matcher 43 is responsible for the signal matching function between the pulse controller 44 and the central control unit 42. The central control unit 42 controls the overall function and detailed operations are shown in FIG. It demonstrates in detail using.

4 is a process flow diagram according to the present invention, which is a process flow diagram by a control program mounted on the central control device 42. The operation method of the meta matcher 19 will be described in detail with reference to the accompanying drawings.

First, the RAM working area of the auxiliary memory device is erased (45), up to 32 meta-connection ports are initialized (46), and various internal register values are defined (47). Then, the interrupt is enabled 48 and it is determined whether the power of the meta-matcher is normal (49). As a result of the determination, if the power is normal, the auxiliary power operation state is canceled (50), the LED lamp indicating that the auxiliary power operation state is turned off, and the LDE indicator indicating the main power operation state is lit (51).

Then, it is determined whether there is received data in the RS-485 transceiver (52). If there is received data, it is determined whether the data is a read request signal from the subscriber terminal (53). The value is sent 54 to the subscriber terminal. However, if it is not a metering request signal, it is determined whether it is a self-check request signal from a meta-match tester (not shown), and if it is a self-check request signal, the state of the auxiliary memory device, the RS-485 transceiver, and the input / output matcher. (56 to 58) and if the result is good, turn on the self test result good LED indicator, and if it is bad, turn on the self test result bad LED indicator (59) and return to the step 49 of determining whether the power supply is normal. do.

In addition, if it is determined that there is received data in the RS-485 transceiver (52), if no data is received, it is determined whether an interrupt occurs when pulse data is received from the meta connection port (60). After sequentially searching the port number 1 to the port number 32, the meta value of the port where the pulse is generated is increased by 1 and stored in the memory device (61). Then, the process returns to the step (49) of determining whether the power is normal. If no interruption has occurred, the flow returns directly to step 49.

On the other hand, if the power is not normal, the auxiliary power operation state starts (62), the LED indicator lamp indicating the auxiliary power operation state is turned on (63), and when data is received from the meta connection port to reduce power consumption of the auxiliary power. When the interrupt occurs (64), change to the auxiliary power supply mode (65) and search sequentially from the port number 1 to 32 to increase the value of the meta corresponding to the port number where the pulse has occurred and store it in the storage device. After the operation (66), the auxiliary power application mode is canceled (67), and the process returns to the step 49 of checking the state of the power supply.

The steps 66 and 61 of processing the meta connection port value by one increment are interrupted. A detailed description will be made with reference to FIG.

FIG. 5 is a flowchart of performing an interrupt for the meta connection port. When one pulse is input to an external terminal (meta connection port) in the main interrupt mode, a flowchart is performed.

When an interrupt occurs (68), first, it is prohibited to perform another mode interrupt (69) to only perform an interrupt on the meta connection port, and set the meta connection port number to 1 (70) and confirm the presence of pulse data ( 71).

If the data exists, the value of the meta corresponding to the port number is increased by one (72). If the data does not exist, the port number is increased by one (73). 1 If the increased port number is greater than 32 (74) and greater than 32, the search for all ports is considered complete and the main interrupt is enabled (75). If it is less than 32, the process of checking the existence of data again is performed. Repeatedly perform meta meter reading for all ports.

Therefore, the present invention carried out by the above-described processing procedure has the effect of processing data quickly and reliably because the meter of the subscriber's premises is remotely read using the CATV network.

Claims (2)

RS-485 transceiver that receives command from subscriber terminal in subscriber's home and sends meta data to subscriber terminal in response to the response, and accurate square wave that removes noise by shaping waveform of pulse data input from meta Through the pulse controller 44 and the pulse controller 44 which make and transmit the cumulative pulse data from the meta, the cumulative data is converted into the meter reading data, and the accumulated data is stored in the auxiliary storage device 40 and data is transmitted from the subscriber terminal. A method of operating a meta-matching device applied to a security disaster prevention and a remote metering system, having a central control unit 42 which transmits the accumulated metering value data to a subscriber terminal through an RS-485 transceiver when a request is received. It clears the working area of the device RAM, initializes the port for meta connection, defines various internal values, The first step of enabling the terminal and determining whether the power supply is normal, and if the power supply is normal and the meter data request signal is received from the subscriber terminal port, the meter reading value of the corresponding meta is transmitted to the subscriber terminal. When the test request signal is received, the second step of performing self-check and if the interrupt occurs that the pulse data is generated from the meta connection port, search the port number in order and increase the meta value of the pulsed port by one. The third step of storing and returning to the storage device and the result of performing the first step, if the power is not normal, the operation is performed as an auxiliary power supply, and the meta connection is performed after changing to the auxiliary power supply mode only when data from the meta connection port exists. And a fourth step of performing the third step only when an interrupt is generated from the port. Crime prevention, disaster management and metadata matching methods of remote meter reading system of. 2. The method of claim 1, wherein the third step includes: prohibiting the execution of all other interrupts when an interrupt occurs; and storing the meta connection port number by one and increasing the port number by one if there is no data. And performing a meta-reading on the meta, and then enabling a main interrupt.