KR20050015511A - Street Light and Supervisory Lamp Lighting Method Utilizing with DAB Protocal Signal, and its DEVICO - Google Patents

Abstract

PURPOSE: A method and an apparatus for turning on/off city lamps and security lamps are provided to save energy by using DAB(Digital Audio Broadcasting) protocol signals and controlling the lamps. CONSTITUTION: An apparatus for turning on/off city lamps and security lamps by using DAB protocol signals includes a DAB protocol receiver, a microprocessor, a relay actuator, a back-up battery, an LCD(Liquid Crystal Display) and key input member, a power source and a main controller. The DAB protocol receiver demodulates the DAB protocol signal and analyzes the DAB protocol signal using a digital signal. The microprocessor includes an operating program which extracts date and time information from the analyzed result, compensates the date and time stored in a clock IC(Integrated Circuit), and outputs a turn on/off control signal. The relay actuator turns on/off a power supplied to a load according to the output control signal. The power source supplies noise-removed drive power to the components.

Description

Street light and Supervisory Lamp Lighting Method Utilizing with DAB Protocal Signal, and its DEVICO}

The present invention relates to an apparatus and a method for automatically controlling a street light, a security light, etc. by DAB protocol signal reception method, and processing only DAB protocol signal to extract only date and time information and then using the microprocessor to the clock IC. By storing it, it is possible to keep accurate time at all times, and it is possible to set the time according to the set contents and to turn on / off the relay so that the function of the microprocessor can self-diagnose from time to time.

In general, various kinds of methods and devices for turning on and off street lights, security lights, traffic signals, and other lights have been proposed. For example, the light sensor CDS is used to determine the brightness of light and to illuminate when the surroundings are dark and to turn off when it is bright. There is a timer method that controls the point / light off according to the time indicated by the built-in clock IC stored in the program form.The illuminance light sensor type is the amount of light when there is more dust or dust floating in the air due to air pollution. Because it can't measure accurately, malfunction can occur frequently and timer method can't correct date and time automatically, so it has to rely on manpower, so unnecessary power is wasted due to errors caused by seasonal point-and-light off time. Excessive labor expenses to reset the time on each controller for correction of date and time, etc. It has a problem.

In order to solve the above problems, a wireless remote control operation method of an independent operation operation method has been proposed, the first of which receives the RF radio signal transmitted from a remote site and controls the on / off according to the command. This method also includes the disadvantages of the timer method that embeds the basic data program into the clock IC in preparation for the error of RF wireless communication, and secondly, the calling function provided by the existing wireless calling service provider. There is a wireless call communication method that receives the POCSAG protocol signal transmitted by the control signal and controls the on / off according to the command. This method also has a timer method in preparation for the error of the wireless call communication like the RF radio method mentioned above. Since it is based, it has limitations that cannot fundamentally solve the problems of the conventional method.

In addition, the RF wireless communication method has been a new problem that hassle and inconvenience of having to separately install a plurality of transmitter devices and repeaters in remote areas, and the wireless call communication method has an economic burden of additional installation of the transmitter device system. However, there are disadvantages such as the burden of paying the fee separately to the wireless calling service provider and the hassle of periodic call for the correction of the date and time.

The present invention devised to solve the above problems is that the existing satellite service provider receives the DAB protocol signal continuously transmitted for 24 hours free of charge and obtains only the date and time information included in the information of the clock By correcting the date and time information stored in the IC, it maintains accurate date and time information and outputs the point and light signals at the correct time to automatically control the light and street lights, security lights, traffic lights and other lights. Its purpose is to make it possible.

In the present invention as described above, the DAB protocol for demodulating the DAB protocol signal received through the antenna in the DAB protocol signal received through the antenna in the DAB protocol, such as street lights, security lights using DAB (Digital Audio Broadcasting) protocol signal Extracts only the date and time information from the information obtained from the analysis results of the protocol receiver 10 and the DAB protocol receiver 10 above, corrects the date and time stored in the clock IC 50, and turns on / off the control signal. A microprocessor 20 having a built-in operation program for controlling and outputting the same, and relays 80A and 80B for turning on / off power supplied to a load not shown according to the output control signal of the microprocessor 20. Relay drive device (40A, 40B), the back-up battery 60 to protect the date and time correction stored in the microprocessor 20, and the front of the microprocessor 20 Using a DAB protocol signal comprising a liquid crystal display and a key input device 30 capable of visually grasping the general state, a power supply 70 for supplying driving power without noise to each controller, and a main control device. It can be achieved by providing a light-off device such as a street light, security light.

Hereinafter, the present invention will be described in detail by way of examples.

1 is a block diagram of the present invention, a DAB protocol receiver 10 for demodulating a DAB protocol signal received through an antenna and analyzing the DAB protocol signal into a digital signal, and the DAB protocol receiver 10 described above. Extracts only date and time information from the information obtained from the analysis result, and corrects the date and time stored in the clock IC 50. It protects the date and time correction stored in the microprocessor 20 and the relay driving devices 40A and 40B for driving the relays 80A and 80B for turning on / off the power supplied to a load not shown according to the signal. To provide a back-up battery 60, a liquid crystal display and a key input device capable of visually grasping the overall state of the microprocessor 20, and supplying driving power without noise to each controller. Consists of a main control unit which sets the power supply unit 70, a dot / light off command, time data, and various operation data, and transmits the setting data to the DAB receiving apparatus when the DAB transmitting system transmits the signal by transmitting it to the DAB transmitting system. do.

 The operation of the present invention configured as described above will be described in detail with reference to FIGS. 2, 3, and 4 which are basic block diagrams of the Ereka-147 DAB transmission / reception system according to the order of the components.

Existing satellite broadcasting service providers continuously transmit DAB protocol signal free of charge 24 hours continuously so that the terminal receiving the DAB protocol signal can get the correct time.The DAB protocol signal is based on the exact time based on GPS time. Because the time slot protocol is a synchronous time slot protocol combined with, the terminal can derive the actual time from the current frame and period number when the "frame" is synchronized at the hour.

In the present invention, such a DAB protocol signal as shown in Figure 3 Ereka-147 DAB transmission frame is composed of a SC (Synchronization Channel), FIC (Fast Information Channel), MSC (Main Service Channel), Ereka-147 DAB transmission The transmission frame structure corresponding to the case of mode 1 is shown in FIG.

Regardless of the transmission mode, the SC is composed of a null symbol that can determine the transmission mode, and reference symbols required for OFDM symbol synchronization and carrier frequency synchronization.

In case of transmission mode 1, the FIC composed of three OFDM symbols includes MIC (Multiplex Configuration Information) including all information related to the audio data services constituting the MSC, system information (SI) for selective service, and data. Includes services. The MSC contains audio and data to be transmitted. When the transmission mode is 1, 72 MSCs are used. Other transmission modes are similar to the transmission frame structure of FIG.

Decoded using a DAB decoder so that the microprocessor can interpret it, you can obtain a decoded DAB protocol signal.

When the decoded protocol signal is input to the microprocessor, the microprocessor extracts the date and time information included in the Orthogonal Frequency Division Multiplexing (OFDM) region every frame to obtain the date and time information required by the present invention. Can be. The microprocessor includes an operating program, a point-and-turn-out date, and time data, and includes date and time information included in the OFDM region of each frame among the decoded DAB protocol signals shown above, which are transferred from a DAB protocol receiver. By extracting only the bay and correcting the date and time stored in the clock IC, it judges based on the point and light out date and time data inputted in itself, and outputs the point and light out control signals through the relay drive devices 40A and 40B. When power is supplied to the load corresponding to the ON relay by turning ON / OFF the relays 80A and B, the street lamp, the security lamp, the traffic light, and other lights are turned on, and the load corresponding to the OFF relay is turned off.

On the other hand, even when the DAB protocol signal as described above is not received due to the terrain and other circumstances, the microprocessor 20 performs the above point-off control according to the date and time information provided from the clock IC 50. In addition, the clock IC 50 may maintain the date and information stored for a sufficient time by using the power supplied from the back-up battery even in the event of a power failure during use. In addition, a liquid crystal display and a key input device 30 capable of visually grasping the overall state of the microprocessor 20 are configured.

As described above, the present invention is not only a large energy saving effect but also easy to operate the system as well as the management cost by controlling the points and lights of street lights, security lights, traffic lights and other lights at an accurate time without any error at a fairly low cost. It has the advantage of minimizing.

As described above, the present invention has been described in detail only with respect to the specific examples described, and it is apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims. will be.

1 is a block diagram of the present invention.

2 is a detailed view of a DAB protocol transmitter.

3 is a detailed view of a DAB protocol receiver.

4 is an explanatory diagram of decrypted DAB protocol signals.

Explanation of symbols for main parts of the drawings

10: DAB protocol receiver 20: microprocessor

30: liquid crystal display and key input device 40A, 40B: relay driver

50: Clock IC 60: Back-up Battery IC

70: power supply 80: relay

90: main controller

Claims (8)

In the point-and-light off device of street light, security light using DAB (Digital Audio Broadcasting) protocol signal, A DAB protocol receiver 10 for demodulating a DAB protocol signal received through an antenna and analyzing the DAB protocol signal into a digital signal; Built-in an operation program that extracts only the date and time information from the information obtained from the analysis result of the DAB protocol receiver 10, corrects the date and time stored in the clock IC 50, and controls and outputs a control point / light control signal. Microprocessor 20, Relay driving devices 40A and 40B for driving relays 80A and 80B for turning on / off power supplied to a load not shown according to the output control signal of the microprocessor 20; Back-up battery 60 to protect the date and time correction stored in the microprocessor 20, A liquid crystal display and a key input device 30 capable of visually grasping the overall state of the microprocessor 20; A power-supply device 70 for supplying driving power without noise to each controller and a main control device, wherein the lamp is turned off or turned off using a DAB protocol signal. The method of claim 1, In order to obtain a decoded DAB protocol signal, the DAB protocol receiving apparatus 10 uses an Eureka-147 DAB transmission frame as shown in FIG. 2 for a synchronization channel (SC), a fast information channel (FIC), and a main service channel (MSC). Point-and-light off devices such as street lights and security lights using DAB protocol signals, characterized in that consisting of. The method of claim 2, SC (Synchronization Channel) is a lighting / lighting device using a DAB protocol signal comprising a null symbol and a reference symbol required for OFDM symbol synchronization and carrier frequency synchronization regardless of a transmission mode. The method of claim 2, In case of transmission mode 1, FIC includes MIC (Multiplex Configuration Information) including all information related to audio data services constituting MSC composed of 3 OFDM symbols, system information (SI) and data that can be selectively serviced. Point-and-turn-off device for street light, security light using DAB protocol signal characterized by including service. The method of claim 2, MSC contains audio and data to be transmitted, and when transmission mode is 1, it is composed of 72 OEM symbols. The method of claim 1, The main controller uses the DAB protocol signal to set the dot / light off command, time data, and various operational data to be transmitted to the DAB transmission system so that the setting data can be transmitted to the DAB receiving device when the DAB transmission system sends a signal. Lighting devices for streetlights and security lights. In the point-and-light of the street light, the security light using the DAB (Digital Audio Broadcasting) protocol signal, Embedding an operating program and dot and extinction date and time data in the microprocessor, Extracting only the date and time information included in the OFDM region of each frame from the decoded DAB protocol signals received from the DAB protocol receiver; Calibrating the date and time stored in the watch IC, Outputting a point / light control signal based on the point / light date and time data inputted in the self; Turning on / off the relays 80A and B through the relay drive units 40A and 40B, When power is supplied to the load corresponding to the relay that is turned on, street lights, security lights, traffic signals, and other lights are turned on, and the load corresponding to the relay that is turned off is composed of the steps of extinguishing the DAB protocol signal. How to turn off / off street lights and security lights. The method of claim 7, wherein The DAB protocol signal is a synchronous time slot protocol combined with the exact time reference made using GPS time, so that the terminal can derive the actual time from the current frame and period number when the frame is synchronized to the hour. Point and extinguish method of street light, security light using DAB protocol signal characterized in that