KR19980019408A - Controller for street lamp with transmitting / receiving function through wire or wireless - Google Patents

Abstract

The present invention relates to a wired / wireless transceivable streetlight controller capable of controlling power saving and collecting state data of a street lamp, and enabling bidirectional communication with a main controller using a wired or wireless communication means, and a control signal received from a remote controller. A street light controller which controls a street light by using a control means, a unique number setting means, a date and time information providing means, a street light driving and a status display means, comprising: communication means capable of bidirectional communication with a main controller of a remote place; Communication means capable of bidirectional communication with the street lamp mechanism; Storage means for storing parameter setting data for a long time even in a non-powered state; Equipped with abnormal recovery means to automatically recover in case of abnormality of control means, as well as constant / light control function for street lights, power saving control function, standard time calibration function, status data collection function and mode switching function in case of communication failure with main controller By using the street lamp controller of the present invention, power saving can be controlled, and thus power consumption can be reduced, and state data of individual street lamps can be collected from a main controller of a remote site, thereby reducing the cost of maintenance of street lamps. Can be saved. In self-control mode, sunrise time is calculated by latitude, longitude, and standard longitude data, and it can be used for the calculation of time of street lamp lighting.

Description

Street lighting controller of remote street lighting controlling system

The present invention relates to a streetlight controller, and more particularly, to a power-saving control and collection of state data of a streetlight mechanism, and a wired / wireless transceivable streetlight controller capable of bidirectional communication with a main controller using a wired or wireless communication means.

Looking at the development of street light system that illuminates the street, the first time, the local manager directly turns on / off the breaker, the street light controller detects the day and night illumination and lights up, and the street light controller is controlled by the program. It has been developed into a street light control system that can be remotely controlled using one-way wired and wireless communication. Currently, the one-way communication street light control system is common.

The configuration of the unidirectional communication street light control system generally controls the street light system as shown in FIG. 1, and for this purpose, the main controller 10 generates a control signal, and receives a control signal from the main controller 10. It is composed of a plurality of street light controller 30 for controlling the 50, and a plurality of street lamp mechanism 50 controlled by the street light controller 30 to illuminate the street.

In addition, as shown in FIG. 2, the detailed configuration of the street light controller 30 includes an RF receiving module 31 for receiving a signal wirelessly transmitted by the main controller 10 and a demodulating signal received by the RF receiving module. Uses the region code and the current year / month / day data generated by the RTC 40 in the FSK modem 32 and the sunrise data for each region stored in the ROM (not shown) inside the microprocessor 33. A microprocessor 33 for calculating a sunrise mole time for the current date, analyzing a signal input from the FSK modem 32 or the wired communication port 41, and outputting a control lamp signal; In response to the output signal of 33, the driving unit 34 for driving the constant light relay 35, the differential relay 36, and the status display lamp 37, and a switch provided therein, are used to determine the unique number of the street lamp controller 30. Unique number setting RTC (Real Time Clock: 39) which provides date and time information to the switch 38 and the microprocessor 33, and stores parameters necessary for controlling the street lamp mechanism 50 in an internal RAM (not shown). And a high-capacity backup capacitor 40 and a wired communication port 41 for wired communication with the main controller 10 to allow the RTC 39 to operate for a sufficient time even if a power failure occurs during use.

Such a street lamp system can selectively control the lighting of the street lamp at a desired time from a long distance, which is the main controller 10 wirelessly or wired to transmit a control signal including a unique number, and in the street lamp controller 30 By comparing the unique number included in the control signal received and the same with the unique number of the same, if the same is made by analyzing the continuous control data to control the streetlight mechanism (50).

However, such a conventional street light controller has a problem that it is difficult to change the frequency band because the RF receiving module is a crystal method, so that the crystal of the RF receiving module needs to be exchanged in order to use it as a street lamp controller in a different area. It acts as a factor in the cost increase.

In addition, there is a regional restriction that it is applicable only in Korea because it uses a database of latitude divided into six stages in a fixed longitude value for sunrise mall time calculation by a microprocessor.

In addition, since the parameter setting data is stored in the RTC RAM backed up by the high capacity capacitor, there is a problem that the parameter setting data is lost when the high capacity capacitor is discharged due to a long-term power outage. There is a problem that the main controller cannot check the control state of the street light controller and the state of the street light fixture.

In order to solve the above problems, the present invention is capable of saving power control and collecting state data of a street light, and a wired / wireless transceiving street light controller for transmitting and receiving control data and collected data with a main controller using wired or wireless communication means. The purpose is to provide.

1 is a configuration block diagram of a typical one-way communication street light system

FIG. 2 is a block diagram illustrating the configuration of the street lamp controller of FIG. 1.

3 is a block diagram of a street lamp system incorporating the present invention;

Figure 4 is a block diagram of a wired / wireless transceiving street light controller according to an embodiment of the present invention

Figure 5 is a block diagram of the configuration of a street lamp mechanism controlled by the street lamp controller of the present invention

Explanation of symbols on the main parts of the drawings

100: main controller 200: street light controller

210: RF transceiver module 220: wired transceiver module

230: microprocessor 240: power line carrier communication module

250: street light drive module 260: area code setting switch

261: Unique number setting switch 270: EEPROM

280: WDT 290: RTC

291: backup capacitor

Street light controller of the present invention for achieving the above object comprises a communication means capable of two-way communication with the main controller of the remote; Communication means capable of bidirectional communication with the street lamp mechanism; Storage means for storing parameter setting data for a long time even in a non-powered state; Abnormal recovery means for detecting abnormality of control means and automatically recovering it, and it has power saving control function, standard time correction function, status data collection function and main controller Characterized in that it has a mode switching function to switch to its own control mode.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

3 is a block diagram of a street lamp system incorporating the present invention.

4 is a block diagram of a street lamp controller 200 according to an embodiment of the present invention, as shown, the street lamp controller 200 receives and demodulates a signal wirelessly transmitted from the main controller 100 and the microprocessor. An RF transmission / reception module 210 for modulating the signal output from the 230 and wirelessly transmitting it to the main controller 100; Receives and demodulates the signal transmitted from the main controller 100 by wire, and the modulation and demodulation unit 221 and the wired communication port 222 to modulate the signal output from the microprocessor 230 to transmit to the main controller 100 A wired transmission / reception module 220; A microprocessor 230 for analyzing a control signal of the main controller 100 received from the RF transmission / reception module 210 or the wired transmission / reception module 220 and performing necessary processing; Modulation and demodulation unit 241 and a line matching circuit for modulating a signal output from the microprocessor 230 and transmitting it to the street lamp mechanism 300 through a power line, and demodulating the signal received from the street lamp mechanism 300 through a power line ( A power line carrier communication module 240 composed of 242; By the control of the microprocessor 230, the constant light, the differential control, and the driving unit 251, the constant light relay 252, the differential relay 253 and the status display lamp 254 consisting of A street lamp driving module 250; An area code and a unique number setting switch 260 (261) for setting an area code and a unique number of the street light controller 200; An EEPROM 270 for storing parameter setting data necessary for street light control; A WDT (Watch Dog Timer) 280 for detecting an abnormal state of the microprocessor 230 and resetting the microprocessor 230 to automatically recover the microprocessor 230; RTC 290 for providing date and time information to the microprocessor 290 and a backup capacitor 291 of the RTC 290.

In addition, the RF transmission and reception module 210 can be easily changed the transmission and reception frequency band by the operation of the frequency band selection switch 211 in the PLL method.

The operation of the street lamp controller 200 of the present invention configured as described above will be described in detail.

The street light controller 200 receives various control signals of the main controller 100, analyzes and processes the received control signals, and performs the functions required by the main controller 100.

Looking at the function of the street light controller 200, as well as the control of the regular lamps, street lights, and outputs a power saving control signal to the individual street lamp mechanism 300 by selecting the impedance of the ballast coil through the power saving switch to pass traffic of a person or a vehicle. It is possible to control the power saving to maintain the minimum illuminance that does not inconvenience the traffic in the low-night time zone. In addition, the state data detected by the luminaire state monitoring and control device 310 installed in each street light fixture 300 is used for the individual street lights using ballast, ignitors, lamps, and a short-circuit state. You can collect data.

First, a description will be given of a constant light, a flashing lights and a power saving control function of a street lamp.

When the main control unit 100 transmits the control lamp of the street lamp, the flashing lights, and the power saving control signal using the area code or the unique number as the header, the main control device 100 transmits the signals through the RF transmission / reception module 210 or the wired transmission / reception module 220. One control signal is received and then demodulated into a TTL level data signal and output to the microprocessor 230.

Then, the microprocessor 230 compares whether the header of the received control signal matches the set area code or unique number, and if so, analyzes the control signal and stores the control signal in the EEPROM 270. In this case, the EEPEOM 270 may store data on a constant light on / off time, a hard on / off time, a power saving on / off time, and the like of the street lamp.

Subsequently, the microprocessor 230 reads the current time from the RTC 290 and stores data on the constant light on / off time, the sharp on / off time, and the power saving on / off time of the street light stored in the EEPROM 270. In comparison, if a match is found, the corresponding control function is performed.

That is, when the current time coincides with the constant light on / off time of the street lamp, the microprocessor 230 outputs a signal for controlling the constant light on / off to the driver 251, and thus the driver 251 is a constant lamp relay. The on / off signal is output to 252 to control the operation of the always-on relay 252 to perform the constant on / off control function. At the same time, the driving unit 251 flashes the status display lamp 254 to recognize the current control state from the outside.

In addition, when the current time coincides with the differential on / off time of the street lamp, the microprocessor 230 outputs a signal for controlling the differential on / off to the driver 251, whereby the driver 251 is the differential relay 253. The on / off control function is performed by controlling the operation of the jump relay 253 by outputting an on / off signal at the same time, and at the same time, the driving unit 251 recognizes the current control state from the outside by blinking the status display lamp 254. To do it.

When the current time coincides with the power saving on / off time, the microprocessor 230 transmits a power saving control signal to the street lamp mechanism 300 through the power line carrier communication module 240 to perform the power saving control function. The power saving control signal output from the microprocessor 230 is modulated into a power line communication signal by the modulation and demodulation unit 241 of the power line carrier communication module 240, and the modulated signal is loaded on each light line through the line matching circuit 242. Sent to instrument 300.

The transmitted signal is demodulated to the original signal by the modulation and demodulation unit 312 via the line matching circuit 311 of the street lamp mechanism 300 and input to the microprocessor 313, whereby the microprocessor 313 is a power-saving on / off Perform the off control function.

On the other hand, if the control signal received from the main control unit 100 via the RF transmission / reception module 210 or the wired transmission / reception module 220 is a standard time correction signal, the microprocessor 230 may generate time data (year / month) of the RTC 290. / Day / hour / minute / second) is updated to the standard time received. Standard time correction is applied to all street light controllers 200 regardless of area code and unique number.

In addition, if the header of the received control signal matches the area code or the unique number, and the following data is the parameter setting data for street light control, it is analyzed and stored in the EEPROM 270. Therefore, parameter setting data can be preserved even after prolonged power failure (about 9 years under no power supply).

Data stored at this time are latitude, longitude, standard longitude, wireless transmission time interval, visibility correction value, lamp on holding time at power on, lamp on holding time at main power on and on / off holding time at forced on / off. .

The state data collection function of the street lamp will be described.

When the microprocessor 230 outputs a state data collection signal to the power line carrier communication module 240 using the unique number of the luminaire state monitoring and control device of the street lamp mechanism 300 as a header, the signal is output from the modulation / demodulation unit 241. The modulated signal is modulated into a power line communication signal, and the modulated signal is loaded on a light line through the line matching circuit 242 and transmitted to each street lamp mechanism 300. The transmitted signal is demodulated to the original signal by the modulation and demodulation unit 312 via the line matching circuit 311 of the street lamp mechanism 300 and input to the microprocessor 313.

The microprocessor 313 analyzes the header of the received signal, compares it with its own serial number, and outputs the collected ballast coil, igniter, lamp, and state data to the demodulation unit 312 if they match. Then, the modulation and demodulation unit 312 modulates this into a power line communication signal, and the modulated signal is loaded on the light line through the line matching circuit 311 and transmitted to the street lamp controller 200 and stored in a database. Street light controller 200 collects the state data of all the street light fixtures 300 that it controls in the same way and stores in the database.

The state data of all the street light fixtures 300 controlled by the street light controller 200 is transmitted to the main controller 100 when there is a request of the main controller 100, and thus a lot of time and effort for maintenance and repair of the street lamp fixtures. To save money.

That is, when the main controller 100 transmits the state data collection signal of the street lamp mechanism using the unique number of the street lamp controller 200 through the wireless transmission / reception module 210 or the wired transmission / reception module 220 as a header, the street lamp controller 200. ) Compares the header with its own serial number, and if it matches, analyzes the following data and collects the streetlight fixture status data.If the streetlight fixture status data is stored in the database, the wireless transmit / receive module ( The controller 210 transmits the data to the main controller 100 via the wired transmission / reception module 220.

In addition, the street lamp controller 200 of the present invention, as well as remote control by the main control device 100 of the remote location, if the remote control is not possible due to the communication failure to control the streetlight mechanism 300 by switching to its own control mode. Equipped with.

This function reads the streetlight control signal transmission time interval data transmitted from the main controller 100 from the EEPROM 270 when the microprocessor 230 has elapsed from the set time when the control signal is finally received. It automatically switches to the self control mode, and the self control mode is maintained until the control signal is received from the main controller 100.

In the self-control mode, the sunrise program time and the street light are turned off by the internal program ignoring parameter setting data other than the latitude, longitude, standard longitude, and visibility difference correction time data received by the main controller 100 and stored in the EEPROM 270. The time is calculated to control the streetlight mechanism 300 by itself.

The calculation of sunrise and flashing time is performed by the microprocessor 230 using the latitude, longitude and standard longitude data stored in the EEPROM 270 and the current year / month / day data generated by the RTC 290. The sunrise time is calculated, and the lighting control time is calculated by using the calculated sunrise time and the time difference correction time data stored in the EEPROM 270 and stored in the EEPROM 270.

In addition, the control of the street lamp mechanism 300 is performed by comparing the calculated lighting control time with the current time.

As described above, the sunrise time is accurately calculated for each region by latitude, longitude, and standard longitude data, and the time of lighting of the street lamp is calculated using the correction time data to correct the difference in visibility. Thus local restrictions can be overcome.

The present invention also includes an abnormality detection and automatic recovery function of the street light controller 200. The microprocessor 230 periodically outputs a reset pulse to the WDT 280 while executing each routine of the program. do. The WDT 280 has a delay timer therein, and the delay timer is restarted every time a reset signal is output from the microprocessor 230, and a reset pulse is input from the microprocessor 230 within a set time. If the delay timer is not set (abnormal state), the reset signal is output to the microprocessor 230. By the reset signal of the WDT 280, the microprocessor 230 is initialized and automatically recovered from the abnormal state.

As described above, the street lamp controller of the present invention can reduce power consumption since it is possible to control power savings as well as regular lamps and slit lamps of the street lamps, and can collect state data of individual street lamps from the main controller of a remote site. Reduce the cost of maintenance.

In addition, the sunrise time can be calculated using latitude, longitude, and standard longitude data, and it can be used for the calculation of the time of turning on and off of street lights.

Claims (11)

In the street light controller receiving a control signal transmitted from the remote control device to control the street lamp mechanism, the control unit, the unique number setting means, the date and time information providing means, the street lamp driving and the status display means, Communication means capable of bidirectional communication with the main controller; Wire / wireless transceiving street light controller comprising a communication means capable of bidirectional communication with the streetlight mechanism. The method of claim 1, The communication means capable of bidirectional communication with the main controller is a wired / wireless transceiving street light controller, characterized in that the RF transmission and reception module capable of wireless transmission and reception (210) or wired transmission and reception module (220). The method of claim 2, The RF transceiver module 210 is a wired / wireless transceiver type street light controller, characterized in that the transmission and reception frequency band can be changed by the operation of the frequency band selection switch 211 in a PLL method. The method of claim 1, The communication means capable of bidirectional communication with the street lamp mechanism includes a power demodulation unit 241 and a line matching circuit 242 which modulate a signal to be transmitted into a power line communication signal and demodulate the received signal into a TTL level signal. Wire / wireless transceiving street light controller, characterized in that the module (240). The method according to any one of claims 1 to 4, Wire / wireless transceiving street light controller, characterized in that further comprises an area code setting means for the control of the area unit. The method according to any one of claims 1 to 4, Wire / wireless transceiving street light controller, characterized in that it further comprises an EEPROM (270) as a storage means for maintaining parameter setting data required for long-term street light control even in a non-powered state. The method according to any one of claims 1 to 4, Wire / wireless transceiving street light controller, characterized in that it further comprises a WDT (280) as an abnormal recovery means for automatically recovering by detecting the abnormal state of the control means. The method of claim 1, The microprocessor 230 is used as the control means, and the microprocessor 230 performs a constant light of a street lamp, a flashing point lamp, and a standard time correction function by using a control signal received from a main controller. Wire / wireless transceiving street light controller, characterized in that it further comprises a power saving control function available when a power saving luminaire is used. The method of claim 8, The microprocessor 230 collects and transmits state data on a ballast, igniter, lamp, and a short circuit of the available streetlight device when the streetlight device includes the luminaire state monitoring and control device 310 and transmits the state data to the main controller. Wire / wireless transceiver street light controller further comprises a state data collection function. The method of claim 8, The microprocessor 230 is a wired / wireless transceiving street light controller, characterized in that it further comprises a mode switching function for switching the street lamp mechanism to its own control mode when communication with the main controller. The method of claim 10, When the microprocessor 230 controls the streetlight mechanism by itself, the sunrise time is calculated for the current date by using latitude, longitude, and standard longitude data and the current year / month / day data. Wire / wireless transceiver type street light controller, characterized in that to calculate the control lamp lighting time of the street light using the time difference correction time data.