KR20060109292A - A full-duplex remote control system for streetlights using a relay station - Google Patents

Abstract

A streetlight bidirectional remote control system using a relay method is provided to prevent malfunction by promptly recognizing an operation state of a system and construct a stable system for the long run. A main controller(10) stores and outputs data for remotely monitoring and control. A communication device(20) discriminates data received from the main controller(10) and transmits it, and transmits collected data to the main controller(10). A plurality of master controllers(30) store data received from the communication device(20), transmit it, add stored data to collected data, and transmit it to the communication device(20). A plurality of sub-controllers(40) are installed at a plurality of streetlights and perform a process for transceiving data with the master controllers(30). The sub-controller(40) stores the data received from the master controller(30) and transmits it to a different sub-controller(40), and adds its data to data collected from the different sub-controller(40) and transmits it to the master controller(30) so that the data can be transmitted to the main controller(10) through the communication device(20).

Description

Street lamp bidirectional remote control system using relay relay method {A FULL-DUPLEX REMOTE CONTROL SYSTEM FOR STREETLIGHTS USING A RELAY STATION}

1 is a schematic block diagram of a streetlight bidirectional remote control system using a relay relay method according to the present invention;

2 is a schematic block diagram showing a system of a main control device and a communication device according to the present invention;

3 is a schematic block diagram of a master controller according to the present invention;

4 is a schematic block diagram of data selection means according to the present invention;

5 is a schematic circuit diagram of a relay control circuit according to the present invention;

Figure 6 is a block diagram showing a communication method of a conventional street light remote control system.

<Description of Symbols for Main Parts of Drawings>

10: main controller 12: main PC

14: SMS server 20: communication device

22: data processing means 24: data selection means

30: master controller 32: transmit / receive data buffer

34: relay control circuit 36: sensor

37: AD Converter 38: Low Power Wireless Transceiver Modem

40: sub-controller 50: security light flasher

 The present invention relates to a street lamp bi-directional remote control system using a relay relay method, and more particularly, by transmitting data in a relay relay method to prevent crosstalk, radio interference, power waste, and to monitor the operation state of the street lamp in real time to malfunction The present invention relates to a street lamp bidirectional remote control system using a relay relay method that can prevent a safety accident caused by a traffic accident or a short circuit.

Generally, it is a street light system that illuminates the street.In the early stage, the local administrator directly turned on / off the circuit breaker manually.After that, the day and night illumination was sensed to automatically turn on / off the circuit breaker. Method and unidirectional wireless remote control method or GPS, has been developed to automatically control the street lamp according to the change of sunrise and day time by seasonal time program, and recently, remote control using wired and wireless communication means. In addition, the street lamp control system is built to monitor the street lamp in real time.

 Remote monitoring and control system of street lights means various means to remotely control and monitor numerous street lights installed in cities or highways using various communication methods.

However, such a street light control system is a simple two-way system in which the central control unit and each street light controller communicate one-to-one. However, the amount of data actually used does not require a high level of communication, so attaching a high power radio or CDMA device to each streetlight flasher does not make efficient use of limited radio waves. This results in a cost loss that requires a constant monthly payment.

As an example, the remote control system proposed in Utility Model Registration No. 20-0186634 (2004.04.11, Designated by Automatic Street Light Control System) uses wired and wireless bidirectional communication methods such as long distance communication means and power line communication. There is a problem in that operating costs are enormous due to the increase in the number of circuit subscriptions with telecommunications operators.

As described above, there is a demand for a method of increasing the economic efficiency by minimizing the cost and power loss caused by the increase in the number of subscribing lines. Accordingly, a plurality of street light controllers are provided in one controller in managing street lights in a certain area. A number of methods for controlling street light control systems have been proposed to reduce the number of subscription lines of long-distance communication means to reduce the operating cost by remotely controlling and monitoring them.

However, many of the proposed systems use high-power wireless modems, causing limitations in ID assignment, interference and radio interference, resulting in malfunction of the system, and unnecessary waste of radio waves. have.

The present invention has been made to solve the above problems, an object of the present invention is to generate a high efficiency and high reliability at a low cost by processing data in a relay method using a low-power wireless modem, cross-talk during data transmission, reception And to provide a two-way remote control system for the street lamp using a relay relay method that can prevent a malfunction of the system in advance by establishing a stable system by not receiving radio interference.

The present invention is a street lamp bi-directional remote control system for remote monitoring and controlling the operation state of the street lamp in real time, the main controller device for storing and outputting data for remote monitoring and control, and distinguishing the data received from the main controller device A communication device for transmitting and transmitting the collected data to the main controller, a plurality of master controllers for storing and transmitting the data received from the communication device and adding the data stored in the collected data to the communication device; It is installed in a plurality of street lamps and consists of a plurality of sub-controllers to be transmitted or received with the master controller, the sub-controller stores the data received from the master controller and transmits to another sub-controller, collected by another sub-controller To the master controller after adding own data to the data Song and characterized by comprising a relay relay method of transmitting to the main controller through a communications device.

Herein, the communication apparatus stores a signal received from the main controller and then converts the protocol, assigns and transmits an ID, adds data stored in the collected data, and transmits the data to the main controller, and A data selection means for detecting and selecting an ID of a signal received by the data processing means, distributing the corresponding data, transmitting the protocol conversion, and transmitting the data received from each master controller to the data processing means. It features.

In addition, the master controller and the sub-controller is a transmission and reception data buffer for storing and transmitting the data received from the communication device and the other sub-controller in real time, relay control circuit for controlling the street light load, leakage current and current, A plurality of sensors for detecting voltage and operation, and a small output wireless transceiver for transmitting or receiving data are provided to store data received from the main controller device in a transmission / reception data buffer and then convert the protocol to transmit to the micro controller. And, it is preferable to convert the state of the street light measured by the sensor from the micro-controller into certain data and transmit it to the main controller.

On the other hand, the main controller is preferably provided with an SMS server to be automatically sent to the administrator's mobile phone via the web to control and monitor in real time.

In addition, the transmission wave range of the communication device, the master controller and the sub-controller is further provided with a security light flasher to enable the reception and compatibility of the data by extracting only the ON or OFF data of the standard time and the security light of the transmitted data protocols. desirable.

Hereinafter, with reference to the accompanying drawings will be described in detail a street lamp bidirectional remote control system using a relay relay method of the present invention.

1 is a schematic block diagram of a two-way street remote control system using a relay relay method according to the present invention, Figure 2 is a schematic block diagram showing a system of a main control device and a communication device according to the present invention, Figure 3 Fig. 4 is a schematic block diagram of a data selection means according to the present invention, and Fig. 5 is a schematic circuit diagram of a relay control circuit according to the present invention.

1 to 5, the street lamp bidirectional remote control system using a relay relay method according to the present invention is a main controller 10 for storing and outputting data for remote monitoring and control, and the main controller ( 10) distinguishes and transmits the data transmitted from the communication device 20 and transmits the collected data to the main control device 10, and stores the data received from the communication device 20, transmits and collects A plurality of master controllers 30 for adding data stored in the data to the communication device 20 and transmitting the data to the communication device 20, and a plurality of sub-controllers 40 installed at a plurality of street lights and transmitting or receiving the master controller 30. It is composed.

The main controller 10 is a device for providing a user interface of a street light remote control system, and is equipped with software for performing a protocol conversion function for communication with a location information system, an alarm log D / B, and the communication device 20. Main PC 12 is provided, and is building a system that can actively respond to sudden environmental changes.

The main PC 12 is a core device of a street light control system, and information on the operating status of the master controller 30 and the sub controller 40 and failure monitoring, operation status of the load, measurement of current, leakage current measurement, voltage It collects the measurement in real time, accumulates it as data and outputs it as a table, and displays the corresponding position on the screen at the same time as a warning sound when the master controller 30 and the sub-controller 40 malfunction, allowing the administrator to take immediate action. .

At this time, when the administrator is absent, it is preferable that the SMS server 14 is provided to be automatically sent to the administrator's mobile phone to control and monitor in real time.

That is, it is possible to control the street lamp by sending the alarm contents in the form of text to the mobile phone of the administrator registered in the SMS server 14, the administrator using the TCP / IP address of the main controller 10 via the web By accessing the streetlight program of the main controller 10, a wide range of streetlight control is possible, and furthermore, through the security certification of the administrator, the streetlight can be monitored and controlled in real time.

The communication device 20 stores a signal received from the main control device 10, converts the protocol, assigns and transmits an ID, and adds data stored in the collected data to the main control device 10 for transmission. The data processing means 22 and the ID of the signal received from the data processing means 22 to detect and select the corresponding data, distribute the corresponding data, and then convert the protocol to transmit the data. The data received from each master controller 30 And data selection means 24 for transmitting the data to the data processing means 22.

The data selecting means 24 distributes the corresponding data to a plurality of data processing means 22 to transmit the data to the main controller 10 or smoothly transmits the data received from the data processing means 22 to the master controller. A device performing a crosslinking role to be transmitted to the device 30. The control signal of the main controller 10 is protocol-transformed, the group ID of the header portion of each data is determined and transmitted to the corresponding master controller 30, and lost. This control signal contributes to the integrity of the data by making a retransmission request to the main controller 10.

In addition, the data received by the master controller 30 automatically discriminates and controls the ID and data amount for each group, and transmits the data to the data processing means 22 so that a collision with existing data does not occur so that data is lost due to simultaneous transmission. And damage caused by crosstalk. In other words, after checking the data value of each master controller 30, it is determined from which place the data is transmitted, inputs the data address of the data processing means 22, and selects and transmits only the corresponding data. This prevents mutual collisions.

The master controller 30 serves as a sub-controller 40 itself as one of the street lamp controllers installed in the field, and the flashing function of the street lamp, failure monitoring, monitoring the operating state of the load, measuring current and measuring leakage current A / D converter 37 is input as a digital value to determine the operation by the micro-controller, if the request to send data from the upper sub-controller 40, the value is collected and transmitted to the main controller 10 Done. In other words, the data received from the main controller 10 is stored and transmitted to the sub-controller 40, and conversely, the data received from the sub-controller 40 is transmitted to the main controller 10. Will be.

At this time, the master controller 30 and the sub-controller 40 can generate high efficiency at low cost by transmitting and receiving with the upper group and the lower group located in the short range, respectively, by using the low power wireless transmission / reception modem 38.

Here, the master controller 30 and the sub-controller 40 is a transmission and reception data buffer 32 for storing and transmitting in real time the data received from the communication device 20 and the other sub-controller 40, and The relay control circuit 34 for controlling the street light load, and a plurality of sensors 36 for detecting the leakage current and the current, the voltage, the presence of the operation is preferably provided. That is, the data received from the main control device 10 is stored in the transmission and reception data buffer 32, the protocol is converted and transmitted to the micro controller, and the micro controller inputs the state of the street lamp measured by the sensor 36. The data is converted into schedule data and transmitted to the main controller 10.

Accordingly, the master controller 30 and the sub-controller 40 transmit and receive data to each other in a relay manner, so that the main controller 10 remotely controls each street light at a long distance to monitor the current operation status in real time. You can do it.

On the other hand, the relay control circuit 34 isolates the relay and the internal digital circuit by using a photocoupler to prevent the malfunction of the circuit due to ground fault or noise, and to control the relay in real time.

Here, the master controller 30 and the sub-controller 40 installed in the field can be given a separate address to communicate by specifying the role of each controller. That is, by designating the controller of the position closest to the main controller 10 as the master controller 30 and designating the controller located farthest from the main controller 10 as the lowest sub-controller 40, it is optimal from the geographical point of view. The controller is arranged in the position of to communicate.

On the other hand, in the transmission propagation range of each communication device 20, the master controller 30 and the sub-controller 40, the security light flasher 50 is installed to provide only standard time, security light, and off data among the transmitted data protocols. It can be extracted and made compatible with data reception.

Looking at the operation and effect of the present invention configured as described above, the main controller 10, which is a key device of the street light control system, the data for the street light control of the group by the interface S / W provided therein to control a certain area When the control signal is transmitted, the control signal is temporarily stored in the data processing means 22 of the communication device 20, the protocol conversion is given to the ID, and transmitted to the master controller 30 through the data selection means 24.

Thereafter, the master controller 30 stores the received data and transmits the data to the sub controller 40 determined as the priority, and the sub controller 40 receiving the data stores the data in the same manner. The data is transmitted to the other sub controller 40 and finally the data is transmitted to the sub controller 40 to be transmitted.

On the other hand, in the case of transmitting the data collected by the other sub-controller 40 of the lower to the other sub-controller 40 of the upper in a manner opposite to the above method, and again through the master controller 30 the main controller ( 10) can be remotely controlled from a remote and can be relayed in real time.

That is, when the control signal is transmitted from the main controller 10, the communication device 20 determines the ID of the corresponding group, and then transmits the control signal to the master controller 30, and the master controller 30 The protocol of the control signal is analyzed and automatically converted and transmitted to the sub-controller 40, and the sub-controller 40 sends the control signal to the other sub-controller 40 in the same manner as described above. By repeating the above process, the control signal is sent to the lowest sub control unit 40, and the lowest sub controller 40 automatically recognizes that there is no sub controller 40 lower than itself and responds to the control signal. Accordingly, the protocol data is converted by the sensor value or the street lamp state to the upper sub controller 40, and the upper sub controller 40 adds its own data to the data of the lower sub controller 40 so that the upper level is changed. The relay is transmitted to the other sub-controller 40 of the communication method.

In this case, when the master controller 30 does not recognize the transmitted data, the master controller 30 transmits the data until the master controller 30 recognizes the data. Finally, the master controller 30 includes all the sub controllers belonging to the subgroup ( It collects, analyzes and converts the signals of 40) and transmits the data to the main controller 10 through the communication device 20 to perform remote control in real time.

Here, the master controller 30 and the sub-controller 40 are provided with a relay control circuit 34, a transmission and reception data buffer 32, and a small output wireless transmission and reception modem 38 so as to have a higher group and lower than itself. Data is transmitted and received in a group, and when the master controller 30 and the sub-controller 40 operate abnormally, the main controller 12 of the main control device 10 is displayed graphically with a warning sound. Safety accidents can be prevented beforehand.

On the other hand, when the security light flasher 50 is provided in the transmission propagation range of each communication device 20, the master controller 30 and the sub-controller 40, the standard time and the security light point among the transmitted data protocols, By extracting only the extinguished data and making it compatible with data reception, it is possible to prevent budget waste due to overlapping investment of street lamp bidirectional system and security flashing transmission system.

In addition, by exchanging data with the main controller 10 at low cost, the cost-performance ratio can be doubled to create high efficiency, and a system can be constructed without installing a cellular phone or a PCS phone in each controller. It also brings cost savings.

According to the present invention as described above, by processing the data in a relay method using a low-power wireless modem it is possible to create a high efficiency and high reliability at a low cost, and does not receive cross-talk and radio interference during data transmission and reception of the system in a short time By grasping the operation state, it is possible to prevent malfunctions and safety accidents in advance and to build a long-term stable system.

Claims (5)

In the street lamp bi-directional remote control system for remote monitoring and controlling the operation state of the street lamp in real time, The main control unit 10 for storing and outputting data for remote monitoring and control, and the communication device for distinguishing and transmitting the data received from the main control unit 10 and transmitting the collected data to the main control unit 10 ( 20) and a plurality of master controllers 30 for storing and transmitting the data received from the communication device 20 and adding the data stored in the collected data and transmitting the data to the communication device 20; Is installed in the street lamp is composed of a plurality of sub-controller 40 to transmit or receive the master controller 30, The sub-controller 40 stores the data received from the master controller 30 and transmits the data to another sub-controller 40 and adds its own data to the data collected by the other sub-controller 40. The street lamp bidirectional remote control system using a relay relay method, characterized in that the relay relay method is transmitted to the master controller 30 and then transmitted to the main controller 10 through the communication device 20. The method of claim 1, The communication device 20 stores the signal received by the main control device 10, and then converts the protocol, assigns and transmits an ID, and adds the data stored in the collected data to the main control device 10 for transmission. A plurality of data processing means 22, Detects and selects the ID of the signal received by the data processing means 22, distributes the corresponding data, transmits the protocol conversion, and transmits the data received from each master controller 30 to the data processing means 22. Street light bidirectional remote control system using a relay relay method, characterized in that consisting of a data selection means for transmitting (24). The method according to claim 1 or 2, The master controller 30 and the sub-controller 40 store the data received from the communication device 20 and the other sub-controller 40 and transmit and receive data buffers 32 to relay in real time, and a street lamp load. The relay control circuit 34 for controlling the control unit, a plurality of sensors 36 for detecting the leakage current and the current, the voltage, the presence or absence of operation, and a low power wireless transmission and reception modem 38 as a communication means is provided with the main controller 10 After storing the data received from the) in the transmission and reception data buffer 32, the protocol conversion and transmission to the micro controller, the micro controller receives the state of the street lamp measured by the sensor 36 and converts it into certain data Street light bidirectional remote control system using a relay relay method, characterized in that the transmission to the device (10). The method of claim 3, The main control device 10 is a street lamp bi-directional remote control system using a relay relay method, characterized in that the SMS server 14 to be automatically sent to the administrator's mobile phone via the web to control and monitor in real time. The method of claim 4, wherein In the transmission propagation range of the communication device 20, the master controller 30, and the sub-controller 40, security to enable reception and compatibility of data by extracting only the ON / OFF data of the standard time and the security light from the transmitted data protocols. Street lamp bi-directional remote control system using a relay relay method, characterized in that the flasher 50 is further provided.

Images