KR100318568B1 - An RF data communication system for the uninhabited security - Google Patents

Abstract

The present invention relates to an unmanned cost wireless data communication system, and in particular, receives and analyzes a security control signal transmitted from a host device, which is a terminal device of subscribers, by remotely controlling the transmission means of a main device and a control device, which are unmanned cost terminal devices. The present invention relates to an unmanned cost wireless data communication system that can be determined and controlled.

A preferred embodiment of the present system comprises a main device of a subscriber's unattended cost terminal and a control device for controlling the claim value, and the main device by remotely controlling the transmission means of the plurality of main devices and the control device via wireless. Receives, analyzes and judges the security related signals transmitted from

At this time, the claim value is made of an encoder for encoding the unmanned security sensor information and the predetermined lake information input from an external sensor and a transmitter for transmitting the sensor information and lake information encoded by the encoder to the control device, The control apparatus includes a high frequency receiver for receiving a signal transmitted from the transmitter, a decoder interface unit for decoding the received signal for each channel of the high frequency receiver into digital data, and a interface for inputting and decoding the decoded output signal of the decoder interface unit. In and out of the input and output interface unit, the computer and the computer for determining and analyzing the signal input from the input / output interface unit to identify alarm conditions and measures on the monitor and to store the analysis results for subscriber management and reception situation management Output and store the data being processed It consists of a peripheral that displays an alert situation.

According to the present invention, by transmitting a communication line, which is a data transmission means of a subscriber main device and a control station via a wireless device, it is possible to minimize transmission time, improve the inconvenience of wired line connection, and compensate for the interruption of information transmission by disconnection. .

Description

Unmanned cost wireless data communication system {An RF data communication system for the uninhabited security}

The present invention relates to an unmanned cost wireless data communication system, and in particular, receives and analyzes a security control signal transmitted from a host device, which is a terminal device of subscribers, by remotely controlling the transmission means of a main device and a control device, which are unmanned cost terminal devices. The present invention relates to an unmanned cost wireless data communication system that can be determined and controlled.

1 is a configuration diagram of a conventional unmanned cost terminal device and a control device, as shown in the subscriber sensor unit 1 is a main device which is a subscriber terminal device by a magnetic sensor, a heating wire (PIR) sensor, an infrared sensor, etc. by wire. Connect to (2) and receive detection signal as input signal.

Recently, the sensor part is wirelessly processed and connected for convenience of installation, but since the power of the sensor is used as a battery, it may cause a problem in sending a transmission signal after a long time, and the inspection is periodically performed to solve the problem. It includes the inconvenience of going forward.

The detection signal from the subscriber sensor unit 1 sends a signal to the subscriber station device 2, and the subscriber station device 2 transmits a signal to a microcontroller for processing each signal and a signal through the telephone line. It is equipped with a simple modem circuit to transmit up to.

The control device 3 inputs a signal input from the subscriber station of the subscriber host device 2 through the telephone line through a simple modem therein to perform signal processing through a computer to generate a monitor and an alarm sound and to process a situation. To be able.

As such, the wireless part related to the data transmission of the unmanned security system has been focused on the adoption of the wireless part that facilitates the connection of sensors that detect external intrusion signals by connecting with the main device, which is the terminal device of the subscriber. From the main device to the control device, a signal is transmitted through a telephone line or a wired dedicated line through a modem or a control decoder device to transmit and process remote security relationship information.

However, since the number of modem connections of the control device 3 is limited when transmitting through a telephone line, there is a drawback that a connection delay may occur at the same time as it occurs at a subscriber.

In addition, there is a disadvantage in that the transmission time is relatively slow compared to the amount of data due to the delay time from the subscriber to the control device when making a call and connecting when transmitting by using a telephone line.

Accordingly, an object of the present invention, which is invented to solve the problems of the prior art operating as described above, minimizes transmission time by wirelessly transmitting a communication line, which is a data transmission means of a subscriber host device and a control device, and minimizes transmission time. The present invention provides an unmanned cost wireless data communication system and a method of operating the same to improve the inconvenience of connection work and to compensate for media cutting of information transmission.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention and the accompanying drawings.

1 is a block diagram of a conventional unmanned cost terminal and a control device.

2 is a block diagram of a master device for a subscriber station according to the present invention;

3 is a block diagram of a local system for control according to the present invention.

4 is a detailed configuration diagram of FIG. 3.

5 is a timing diagram of the DTMF transmission signal system of the present invention.

6 is a table diagram of a signaling sequence.

7 is a table diagram of DTMF transmission data according to the present invention.

8 is a flowchart of operation of the present invention.

9 is an operation flowchart of the control device of the present invention.

<Description of Symbols for Main Parts of Drawings>

1: subscriber sensor 2, 20: subscriber main device

3: control device 10: encoder

11: reset section 12: oscillator (OSC)

13 sensor input unit 14: microcomputer

15: DTMF Generator 16: LED Driver

17: relay driver 18: address decoder

21, 34: prescaler 22, 31: filter

23, 32: PLL Synthesizer

24, 33: voltage controlled oscillator (VCO)

25: power control unit 26: driver

27: amplifier 28, 35: low pass filter (LPF)

30: high frequency receiver 36: power switch

37a: high frequency amplifier 37b: intermediate frequency amplifier

37c: audio frequency amplifier 38: mixer

40: decoder interface 41: differential amplifier

42: DTMF Receiver

43: Binary Coded Decimal Representation (BCD)

50: input / output interface 60: computer

70: peripheral 71: monitor

72: Printer 73: Database Hard (D / B HARD)

74: alarm

The unmanned cost wireless data communication system according to the present invention comprises a main device which is an unmanned security terminal of a subscriber and a control device for controlling the claim value, and a plurality of main devices and a control device for transmitting the remote means through a wireless device. The control unit receives, analyzes, and determines a security control signal transmitted from the main device.

At this time, the claim value is composed of an encoder for encoding unmanned security sensor information and predetermined lake information input from an external sensor, and a transmitter for transmitting the sensor information and lake information encoded by the encoder to the control device.

The control apparatus includes a high frequency receiver for receiving a signal transmitted from the transmitter, a decoder interface unit for decoding the received signal for each channel of the high frequency receiver into digital data, and inputting and decoding the decoded output signal of the decoder interface. A computer and the computer for storing the analysis result for the subscriber management and the reception condition management by grasping and analyzing the input / output interface and the signal input from the input / output interface. It consists of a peripheral device that outputs, stores and displays alarm status.

The encoder unit preferably includes a reset unit for inputting a reset signal, an oscillator for generating a clock signal, a sensor input unit for inputting detection contents from a plurality of external sensors, and an input from the sensor input unit according to a clock signal of the oscillator. A microcontroller for processing a sensor signal, a DTMF generator for converting an output signal of the microcontroller into DTMF data and transmitting it to the transmitter, an LED driver driven by receiving a control signal of the microcontroller, and a control signal of the microcontroller It is configured to include a relay driver driven by receiving the input and the address decoder for setting the lake information.

The transmitter preferably includes a voltage controlled oscillator (VCO) for controlling an oscillation frequency by varying a voltage signal output from the DTMF generator, a prescaler for lowering a frequency generated by the voltage controlled oscillator, A filter for filtering the frequency lowered in the prescaler, a phase locked loop (PLL) synthesizer for controlling the voltage controlled generator to maintain a constant frequency by detecting a phase shift of the filtered frequency, and an output from the microcontroller. A signal control power control unit for transmitting the secured signal to the voltage control oscillator, a driver driven by a control signal of the voltage control oscillator and the power control unit, an amplifier for amplifying a drive signal of the driver, and a low frequency signal of the amplifier. Includes a low pass filter It is open configuration.

The high frequency receiver includes: a filter for filtering a predetermined frequency, a phase synchronous loop synthesizer for detecting a phase shift of the frequency filtered by the filter and outputting a control signal for maintaining a constant frequency, and varying an output voltage of the phase synchronous loop synthesizer A voltage controlled oscillator for controlling the oscillation frequency, a prescaler for lowering the feedback frequencies of the PLL synthesizer and the voltage controlled oscillator, and a low frequency band receiving and attenuating low frequency signals transmitted from the subscriber station through an antenna. A filter (LPF), a high frequency amplifier for amplifying the low frequency signal attenuated by the low pass filter into a high frequency signal, a mixer for mixing the output frequency of the voltage controlled oscillator and the frequency signal amplified by the high frequency amplifier, the intermediate input from the mixer An intermediate frequency amplifier amplifying a frequency, in the intermediate frequency amplifier And an audible frequency amplifier for amplifying only an audible frequency among the input intermediate frequencies, and a power switch for supplying power to the high frequency amplifier, the mixer, the intermediate frequency amplifier, and the audible frequency amplifier.

The decoder interface may include a plurality of differential amplifiers for amplifying a signal input from the high frequency receiver for each channel, a plurality of DTMF receivers for converting the DTMF signals of the respective differential amplifiers into digital data of a BCD code, and the DTMF receivers. It consists of a plurality of BCD decoders for decoding data.

Hereinafter, described in detail with reference to the accompanying drawings, preferred embodiments of the present invention.

2 is a block diagram of a main device for a subscriber terminal of the present invention, as shown in FIG. 2, an encoder 10 for processing sensor information and lake information, and a sensor signal and lake information processed by the encoder 10 are transmitted. A signal that can be recognized by a computer by demodulating the received signal of each channel of the transmitter 20, the high frequency receiver 30 receiving the signal transmitted from the transmitter 20, and the high frequency receiver 30 into digital data. Decoder interface 40 for converting the data, the input and output interface 50 for parallel processing of the BCD data by connecting the decoder interface 40 and the computer, BCD encoding of the input / output interface (50) by a control program Judges the input signal and analyzes sensor information and lake information, and backs up the alarm situation and measures on the monitor for subscriber management, reception status management and regular data. Comprising a computer 60 to perform, including a peripheral device 70 for outputting the data processed by the computer 60 or display an alarm situation, the operation and effects thereof will be described in detail with reference to Figs. Is as follows.

The sensor input unit 13 of the encoder 10 of the main unit can input eight types of infrared sensors, heating sensors, magnetic sensors, etc., and the input signal is a high signal ("H") signal as an active signal. 14).

The sensor detection input port of the microcomputer 14 scans and detects when the signal of the external sensor becomes active high, and the detected signal is calculated by the microcomputer 14 together with the predetermined lake information, thereby performing 4-bit It is processed as Binary Coded Decimal Representation (BCD) code, and the data of each code is encrypted according to the information state stored in the microcomputer 14 and transferred to the DTMF (Dual Tone Multi Frequency) generator 15 as a 4-bit BCD code. .

In addition, 4-bit data is transmitted to the DTMF generator 15 in parallel with 8 times of BCD codes, and the same signal of one packet is transmitted to the transmitter 20 twice and radiated through the antenna.

The DTMF generator 15 generates a DTMF signal and inputs a voltage control oscillator (VCO) of the transmitter 20 when the tone enable signal of the microcomputer 14 is turned on. It is transmitted and modulated by a carrier frequency generated by a phase locked loop (PLL) 23 and a prescaler 21 and radiated to an antenna through a radio wave type of FM (Frequency Modulation).

The PLL 23 generates a frequency of an allocated channel. The PLL 23 generates a frequency having a channel of 220 MHz by the low power propagation law, and the DTMF signal of the encoder 10 is converted by the microcomputer 14 to be a DTMF signal. The DTMF signal, which is transmitted to 20, is radiated twice in eight transmission data as shown in FIG.

In FIG. 5, 1 bit is a start bit, 2 and 3 bits are sensor information, 4 to 7 bits are lake information, 8 bits are end bits, and the bit state thereof is shown in Table 1. .

In addition, the transmission time is 8 bits, and the waiting time is 2 sec + (number information AD00) sec. The DTMF transmission transmits data through the transmission time and the waiting time.

The waiting time = 2sec + (number information AD00) sec prevents the interference of data generated when data is transmitted due to the security situation occurring at the same time with the subscriber connected to the same channel, and the transmission of data transmits the same data twice Prevent errors.

Also, since the DTMF signal is transmitted digitally, the state of the digits and data when the frequencies are low ("L") and high ("H") is shown in Table 2.

In addition, as shown in FIG. 3, the high frequency receiver 30 receives a signal transmitted from a remote main device, and the decoder interface 40 demodulates the received signal of each channel of the high frequency receiver 30 into digital data to perform computer demodulation. (Converts to a signal that can be recognized by 60, and the input / output interface 50 connects the computer 60 and the decoder interface 40 to parallelize the BCD data of the decoder interface 40, and the computer 60 The BCD coded input signal of the input / output interface 50 is determined by a control program, and the subscriber information is managed on a monitor, the receiver status management, and the periodical status are analyzed by analyzing the lake information and the sensor information. Performing a data backup, the peripheral device 70 is used as an output device and an alarm display device of the data processed in the computer 60.

8 is a flowchart of operation of the present invention. In the operation method of the main apparatus of the unmanned cost wireless data communication system according to the present invention, when the power of the main apparatus is turned on (s10), the lake information is scanned (s20), and when the lake information scanning is completed, data received from an external sensor Scan (s30)

Check whether the external sensor recognizes the detection state (s40), and if the detection result does not recognize the detection state, scans the data received from the external sensor again, and if the detection result recognizes the detection state, the scan One data is read (s50).

The read data is converted into transmittable data (s60), the converted data is transmitted to the controller through the transmitter (s70), and the transmission is performed to prevent data interference with other Gaisers connected to the same channel. If the confirmation result has been made twice (s80), and if the confirmation result is transmitted twice, scan the external sensor data again, and if the confirmation result is not transmitted twice, the data is transmitted again.

In more detail, First, when the power is turned on in the power-on step (s10), when the main microcomputer starts to operate, the LED of the encoder is turned on in a normal state, and each encoder system is unique in the lake information scan step (s20). After the power is turned on to detect the unique information, which is used as the number of the device is transmitted to the control system when transmitting, the control system recognizes the device number to determine the situation, in the sensor scan step (s30), the encoder The system has 8 channels, 8 channels are connected to various detectors, and the encoder's microcomputer checks the 8 detector statuses every 2msec to determine whether the current status is detected or not.

In the sensor detection step (s40), the detector is checked every 2 msec. If the detection state is recognized, data reading is performed. Otherwise, the status of the detector is continuously checked. If the sensor is detected in the data reading step (s50), several times The sensor recognizes whether it is detected and converts the data into data, and converts the data that the microcomputer has in the data conversion step (s60) into data capable of transmitting the data, and the transmission system transmits DTMF data.

In the data transmission step (s70), when the data conversion is completed, the transmitter is operated, and the DTMF data that the microcomputer has through the transmitter is transmitted. In the second transmission completion step (s80), the number of transmissions is detected twice. If it is not 2 times, it transmits again and when the 2 times transmission is completed, the sensor is scanned again.

9 is a flowchart illustrating the operation of the local system for controlling the present invention. In the operation method of the control apparatus of the unmanned cost wireless data communication system according to the present invention, by scanning a plurality of reception channel data (s100) to store the detection value, and confirming whether the stored data is in a reception state (s200), If the check result data is in a receivable state, the data is read and if not, the data is scanned again (S300).

Among the read data, the subscriber number and the data relating to the sensor operation state are stored in the reception-only information database (s400), and the details of the data stored in the reception-only information database are displayed in the reception data display window and the reception data reading display window. The data is scanned again (s700) (s900).

If there is no response among the subscribers as a result of the data reading, the subscriber number is automatically stored (s500), and the data stored in the A / S dedicated information database is displayed on the A / S data display window and the received data reading display window. The data is scanned again (s800) (s900).

When the details of the corresponding subscriber including the sensor installation location are changed as a result of the reading, the changes are stored in the subscriber list database (s600), the data stored in the subscriber list database is displayed on the received data reading display window, and the data is again displayed. Scan (s900).

At this time, the reception information database and the A / S database are updated every time, and the contents of each database are displayed in the reception data reading window as a whole, and a warning state is displayed when an intrusion signal is detected.

In more detail, in step 1 to 10 receiving channel data scanning step (s100), data through a receiver is connected to a program through an interface of a computer, and the program detects data through the interface and stores the detection value. If the received data is checked in step S200 and received, data is read and if not, the channel is scanned again. If data is received in the data reading step S300, it is determined whether the information is correct and analyzed and analyzed for the subscriber information, that is, the subscriber number. The data is read and the data is skipped if it is not correct and stored in various databases when the correct information is received.

The data received in the receiving database step (s400) is processed and stored in a receive-only information database, and provides information to the database that checks the status of no response for a certain time among subscribers in the A / S database step (s500). . The program is operated by being connected to the received data as a database containing information such as the subscriber's number, name, telephone, etc. in the subscriber list database s600, and analyzed by the window displaying the received data in the received data display window s700. Result Data Status Connected with subscriber list.

A / S data display window (S800) to extract the subscriber without a response for a specific time, so that the controller can determine, and analyzes the data received in the received data reading display window (s900) one by one to determine the meaning and easy access by the controller To do it.

The present invention can be variously modified and can take various forms and only the specific embodiments thereof are described in the detailed description of the invention. It is to be understood, however, that the present invention is not limited to the specific forms mentioned in the detailed description of the invention, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the invention as defined by the appended claims. It should be understood to do.

In the present invention operating as described in detail above, the effects obtained by the representative ones of the disclosed inventions will be briefly described as follows.

The present invention minimizes the transmission time and wired method generated by transmitting security information by using an existing telephone line or using a dedicated line by wirelessly transmitting a communication line, which is a data transmission means of a control device of a subscriber and a control device of a subscriber station. It is effective to improve the inconvenience of line connection work and to compensate for the shortcomings of media cutting of information transmission due to disconnection of telephone line.

Claims (6)

And a control device for controlling the claim value and a main device which is an unmanned cost terminal of a subscriber, and receives a security signal transmitted from the main device by remotely controlling the transmission means of the plurality of main devices and the control device. In an unmanned cost wireless data communication system for analyzing, judging and controlling, The claim above, A reset unit for inputting a reset signal, An oscillator for generating a clock signal, Sensor input unit for inputting the detection content from a plurality of external sensors, A micro controller for processing a sensor signal input from the sensor input unit according to a clock signal of the oscillator; DTMF generator for converting the output signal of the micro-controller into DTMF data for transmission to the transmitter. LED driver driven by receiving the control signal of the micro-controller, An encoder unit including a relay driver driven by receiving a control signal of the microcontroller and an address decoder for setting lake information, and encoding unmanned security sensor information and predetermined lake information input from an external sensor; And It consists of a transmitter for transmitting the sensor information and the lake information encoded by the encoder to the control device, The control device, A high frequency receiver receiving a signal transmitted from the transmitter; A decoder interface unit for decoding digital data of the received signal for each channel of the high frequency receiver; An input / output interface unit for inputting and interfacing the decoded output signal of the decoder interface unit; A computer for determining and analyzing a signal input from the input / output interface unit to identify alarm conditions and measures on a monitor and to store the analysis result for subscriber management and reception situation management; And An unmanned cost wireless data communication system comprising a peripheral device for outputting, storing, and displaying an alarm state of data processed by the computer. The method of claim 1, wherein the transmitter, A voltage controlled oscillator (VCO) for controlling the oscillation frequency by varying the voltage signal output from the DTMF generator; A prescaler for lowering a frequency generated by the voltage controlled oscillator; A filter for filtering the frequency lowered in the prescaler; A phase locked loop (PLL) synthesizer that senses the phase shift of the filtered frequency to control the voltage controlled oscillator to maintain a constant frequency; A signal control power supply controller for transmitting the security signal output from the microcontroller to the voltage control oscillator; A driver driven by a control signal of the voltage controlled oscillator and a power controller; An amplifier for amplifying a drive signal of the driver; And And a low pass filter for attenuating low frequency signals of the amplifier. The method of claim 1, wherein the high frequency receiver, A filter for filtering a predetermined frequency; A phase locked loop synthesizer for detecting a phase shift of the frequency filtered by the filter and outputting a control signal for maintaining a constant frequency; A voltage controlled oscillator controlling the oscillation frequency by varying the output voltage of the phase locked loop synthesizer; A prescaler for lowering feedback frequencies of the phase locked loop (PLL) synthesizer and the voltage controlled oscillator (VCO); A low pass filter (LPF) for receiving and attenuating low frequency signals transmitted from the subscriber station through an antenna; A high frequency amplifier amplifying the low frequency signal attenuated by the low pass filter into a high frequency signal; A mixer for mixing the output frequency of the voltage controlled oscillator and the frequency signal amplified by the high frequency amplifier; An intermediate frequency amplifier for amplifying the intermediate frequency input from the mixer; An audible frequency amplifier for amplifying only an audible frequency among the intermediate frequencies inputted from the intermediate frequency amplifier; And An unmanned cost wireless data communication system including a power switch for supplying power to the high frequency amplifier, the mixer, the intermediate frequency amplifier and the audible frequency amplifier. The method of claim 1, wherein the deconor interface unit, A plurality of differential amplifiers for amplifying the signal input from the high frequency receiver for each channel; A plurality of DTMF receivers for converting the DTMF signals of the respective differential amplifiers into digital data of a BCD code; And An unmanned cost wireless data communication system comprising a plurality of BCD decoders for decoding the data converted by each DTMF receiver. The method according to any one of claims 1 to 4, When the main unit is powered on, the lake information is scanned, When the lake information scan is completed, scan the data received from the external sensor, Check whether the external sensor recognizes the detection state, If the check result does not recognize the detection state, the data received from the external sensor is scanned again, Read the scanned data when the detection result is detected; Converts data capable of transmitting the read data, Transmitting the converted data to the control apparatus through a transmitter, In order to prevent data interference with other subscribers connected to the same channel, check whether the transmission is performed twice, and if the transmission results in two confirmations, the external sensor data is scanned again, and the confirmation determination transmission is made twice. Unmanned wireless data communication system for transmitting data again if not. The method according to any one of claims 1 to 4, The control apparatus scans a plurality of reception channel data and stores the detected value; Check whether the stored data is in a receivable state, If the check result data is in a receivable state, the data is read; if not, the data is scanned again; Among the read data, the data relating to the subscriber number and the sensor operation state are stored in a reception-only information database Display details of the data stored in the reception-only information database on the reception data display window and the reception data read display window, and scan the data again; If there is no response among the subscribers as a result of reading the data, the subscriber number is automatically stored. The data stored in the A / S dedicated information database is displayed on the A / S data display window and the received data reading display window, and the data is scanned again. If the details of the corresponding subscriber including the sensor installation location is changed as a result of the reading, the changes are stored in the subscriber list database, Display the data stored in the subscriber list database on the read data read display window and scan the data again; The reception information database and the A / S database is updated every time, and the reception data reading window displays the contents of each database as a whole, and when there is an intrusion signal unattended cost wireless data communication system.