KR20100113304A - System for illuminating road - Google Patents

Abstract

PURPOSE: A road lighting system is provided to implement an operation by controlling a lamp unit through a wired relay when the communication with a central control device is trouble due to a facility malfunction or bad weather. CONSTITUTION: A lamp unit(110) comprises a light source dimming a road surface, a CPU and an external connector. The external connector receives power from the outside and communicates with the outside. A vehicle sensor(120) determines whether a vehicle is on a road. A wired relay control device(130) is formed at each lamp unit and controls the lamp unit and the vehicle sensor. A wireless relay device(150) bi-directionally relays the wired relay control device and the central control device.

Description

Road Lighting System {System for Illuminating Road}

The present invention relates to a road lighting system, and more particularly, to a road lighting system that is convenient to maintain, has a low maintenance cost, and can reduce power consumption.

In general, lighting devices such as street lamps are installed on roads on which automobiles travel so that road users can easily identify and safely use roads at night.

The conventional lighting apparatus as described above is given an identification number for each street light, and is configured to turn on or off each street light at the central control station.

However, in the conventional lighting device and lighting system, since each individual street light must be directly connected to the central control center, the connection configuration is very complicated. In order to avoid this, several street lights are bundled and controlled by unit, but each individual street light is controlled. There is a problem that can not control the street light.

In addition, when installing a street light in remote areas such as mountains, there is a problem that the connection to the central control station for the control is too far too much to spend the facility cost.

The present invention is to solve the above problems, the present invention is to provide a road lighting system that can be applied to the mountainous countryside, the connection configuration is simpler than the conventional, easy to maintain / manage and reduce the power consumption It is a task.

In order to solve the above problems, according to an embodiment of the present invention, at least one light source is provided, a lamp unit arranged along the road, provided at predetermined intervals, the vehicle traffic for detecting whether the vehicle traffic on the road Wired relay control device is provided for each of the sensing device, the plurality of lamp units, supplying power to the plurality of lamp unit and the vehicle traffic detection device, and controls the lamp unit and the vehicle traffic detection device, the plurality of wired relay control Including a wireless relay device which is connected to the device, and communicates via the wireless communication network with the central control device for giving a command based on the data transmitted from each wired relay device, the wired relay control device and the central control device bi-directionally; A road lighting system is provided.

The lamp unit may be to use an LED as a light source.

The wired relay control device may control the brightness of the light source of the lamp unit in multiple stages.

In addition, the wired relay control device may be to control the flashing period of the light source of the lamp unit.

In addition, when it is determined that there is no vehicle on the road through the vehicle traffic detection device, the wired relay control device may perform power saving control by dimming the brightness of the lamp unit or turning off the light source.

The lamp unit further includes a temperature sensor for measuring an internal temperature, a heater for raising an internal temperature, and a heat dissipation fan for dissipating internal heat, and the wired relay controller is measured through a temperature sensor of the lamp unit. The temperature information of the lamp unit may be to selectively drive the heat radiating fan or heater.

A solar cell for supplying power to the lamp unit may be further provided.

On the other hand, the wired relay control device may be to control the lamp unit alone when communication with the central control device is lost.

The wired relay control apparatus may measure the amount of power consumed by each of the lamp units and monitor whether the lamp unit is broken.

In addition, the vehicle traffic detection apparatus may detect whether the vehicle traffic is present by an ultrasonic method.

In addition, a portable control device connected to the individual lamp unit to check the state of the lamp unit may be further included.

According to the road lighting system according to the present invention has the following effects.

First, since a lamp unit of a predetermined section is connected to the central control unit by the unit by the wired relay device, the number of connecting the street control unit to the central control unit is higher than that of the conventional method. It has the advantage of being easy to install and manage.

Second, since the wired relay device of a predetermined section is bundled into one unit and connected to the central control device through the wireless communication network of the wireless relay device, there is no need to provide a communication line from each lamp unit to the central control device, thereby providing an easy installation. In addition, compared to the method in which each individual lamp unit is connected to the central control apparatus through a wireless communication network, the communication fee is reduced.

Third, even if communication with the central control device is lost due to a facility failure or bad weather, the wired relay device can control the lamp unit, thereby enabling normal operation.

Fourth, since the wired repeater monitors the failure and security of the lamp unit at all times, it can immediately cope with failure or intrusion.

Fifth, since the brightness of the light source of the lamp unit is adjusted in multiple stages, it can be adjusted to the appropriate brightness according to the illumination of the time zone or whether traffic is present, thereby minimizing power consumption.

Sixth, since the heat dissipation fan and the heater to prevent overcooling or overheating is provided inside the lamp unit to maintain the temperature in the lamp unit has the effect of improving the reliability of the device.

Seventh, since a solar cell for supplying power to the lamp unit is provided, there is an advantage that it can be used in places where it is difficult to install a power line, such as mountainous region.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

As shown in FIG. 1, the road lighting system according to the present embodiment includes a lamp unit 110, a vehicle traffic detection device 120, a wired relay control device 130, a wireless relay control device 150, and a center. It may be made including a control device (160).

As shown in FIG. 2, the lamp unit 110 is connected to a light source 116 dimming a road surface, a CPU 114 controlling the light source 116, and an external connection for receiving power from an external source. It may include a connector 111.

The light source 116 may be formed of one or a plurality of LEDs in series or in parallel.

The external connection connector 111 is configured to perform communication while receiving power of approximately 24 V DC, and the power supplied through the external connection connector 111 is converted into a required voltage from the internal power conversion device 112 to the CPU 114. And other electronic circuits.

The signal input through the external connection connector 111 is transmitted to the CPU 114 via the signal conversion device 113 and the signal from the CPU 114 is again passed through the signal conversion device 113 to the external connection connector ( 111 is delivered to the external device connected to the external connection connector 111.

According to the input command signal, the CPU 114 first operates after distinguishing whether the input command signal is a command regarding the entire group of the light sources 116 or a command regarding any one of the light sources 116. . In the case of the individual operation, the control is performed according to the command after confirming the identification number assigned to the light source 116.

The light source 116 may be controlled so that the brightness of the light source 116 may be adjusted in multiple stages, preferably in ten stages, using a pulse width modulation (PWM) in the CPU 114. The blinking signal is also controlled to flash the PWM output signal in a period of 10 steps.

By controlling the illumination control or the flashing control as described above according to the time zone or whether the vehicle passes, it is possible to save energy with the optimized brightness.

In addition, the lamp driver 115 and the current sensor 117 for driving the light source 116 senses the flow of current flowing when driving the LED to detect the overcurrent or damage and operation state of the light source 116 to the CPU 114 Watch).

In addition, the lamp unit 110 may include a temperature sensor 1119, a heater, and a heat radiating fan 118 therein. That is, if the temperature measured from the temperature sensor 119 is a low temperature of 10 degrees C or less, the internal temperature is increased by driving the heater. If the temperature is 65 degrees Celsius or more, the heat radiation fan is operated to increase the internal temperature of the lamp unit by 10- ~. It may be made to maintain between 65 degrees.

As shown in FIG. 3, the vehicle traffic detection device 120 is provided at predetermined intervals on the road to determine whether the vehicle is traveling in a corresponding section by determining whether the vehicle is traveling, thereby allowing the user to select a portion that does not need lighting. It can be made to pursue the power saving effect.

The vehicle traffic detection device 120 may include an external connection connector 121, a power supply device 122, a CPU 124, an ultrasonic sensor 126, and transmission / reception amplifiers 125 and 127.

The external connector 121 is connected to an external power supply line and a communication line, and the data signal input and output through the external connection connector 121 is transmitted to the CPU 124 via the signal converter 123 and the CPU 124. The state is detected at the display on the LCD display 129. The CPU 124 generates and controls an ultrasonic transmission 40KHz pulse, and the generated signal is amplified by the ultrasonic transmission amplifier 125 and supplied to the ultrasonic sensor 126 to transmit a signal.

At this time, the ultrasonic sensor 126 detects the signal returned by the transmitted ultrasonic signal reflected on the traffic vehicle, and the ultrasonic receiving amplifier 127 amplifies the signal and calculates the time difference from the CPU 124 to determine whether the vehicle is traveling. To judge. Detecting distance of traffic is based on 10m, but is not limited thereto.

When the vehicle traffic detection apparatus 120 detects a vehicle traffic, the detection signal is transmitted to an external device such as a wired relay control device 130, which will be described later, connected to the external connection connector 121.

In addition, a key input device 128 may be further provided for on-site operation of the administrator. The key input device 128 as described above may be made to be opened by a door (not shown) to block the access of outsiders other than the manager. In addition, the door is sensed to be opened or closed by a switch (not shown) or a sensor (not shown), and when the door is opened to transmit this signal through the external connection connector 111 to prevent unauthorized opening of the door. It is made to monitor from a remote location such as the central control unit (160).

As shown in FIG. 5, the wired relay control device 130 includes an uplink 131, a downlink 132, a CPU 134, an LCD display 139a, a keypad 139b, and a power supply device ( 135, the current sensor 133 may be included.

The uplink 131 is a portion that is connected to the wireless relay controller 150, which will be described later, the downlink 132 to supply power to the lamp unit 110 and the vehicle traffic detection device 120 to communicate For the part.

In addition, the downlink 132 of the wired relay control device 130 is connected to the plurality of (approximately 50) lamp units 110 and the external connection connectors 111 and 121 of the vehicle traffic detection device 120 by wire. In addition, the wired relay control device 130 includes a large-capacity power supply device 135 to supply power to the plurality of lamp units 110 and the vehicle traffic detection device 120.

The power supply 135 is basically made to receive power from the outside through the power line, but is used in places where the power line is not easy to install, such as mountainous backcountry or the solar cell 140 for the purpose of using renewable energy. It may be further provided.

In general, since the lamp unit 110 operates after the sunset time, the power supply device 135 is further provided with a battery (not shown) to store energy transmitted from the solar cell 140. It may be made to supply power when the lamp unit 110 is operated.

On the other hand, the wired relay control device 130 is preferably made to supply power to the lamp unit 110 within a predetermined distance to the left and right of the arranged lamp unit 110. Therefore, the distance from the wired relay controller 120 to the far end lamp unit to which power is supplied can be reduced by half, compared to supplying power to the lamp units 110 arranged in only one direction, even in the same number. In addition, the magnitude of the current flowing through the power supply line can be reduced by half, and thus the thickness of the power supply line can be made thinner.

On the other hand, the data input through the uplink 131 through the communication conversion module 136 is divided into the type of command in the CPU 134 and transmitted to the downlink 132 to the lamp unit 110 and It is transmitted to the vehicle traffic detection device (120). In addition, the data input through the downlink 132 is divided into the type of command in the CPU 134 via the communication conversion module 137 and processed and transmitted to the uplink 131 to control the wireless relay. Sent to device 150.

In addition, the downlink 132 is provided with a current sensor 133 monitors the load current in real time and transmits it through the uplink 131 when an abnormal current occurs.

In addition, the power supply device 135 is also provided with a function of detecting an abnormality of power failure and other power supply and transmits it through the uplink 131 when an abnormality occurs.

In addition, when the vehicle traffic detection device 120 connected through the downlink 132 detects that there is no vehicle on the road, the brightness of the lamp unit 110 in the corresponding section is darkened or some or all of the plurality of LEDs are turned off. Power saving control.

In addition, an LCD display 139a and a keypad 139b are provided to enable the administrator to input and check the field.

In addition, the wired relay control device 130 may be opened and closed by a door (not shown) for repair and manipulation. In addition, the door (not shown) is sensed to be opened or closed by a switch (not shown) or a sensor (not shown), and when the door is opened, the signal is transmitted through the external connection connector 131. Door opening is made so that it can be monitored from a remote place such as the central control device (150).

As illustrated in FIG. 6, the wireless relay control device may include an uplink 151, a downlink 152, a CPU 153, an LCD display device 157a, and a keypad 157b.

The uplink 151 is a part that is connected to the central control unit 160 and the CDMA system 158 by wireless communication, and the downlink 152 is connected to the wired relay control unit 130 for communication. Part.

The downlink of the wireless relay controller 150 is connected to the plurality of wired relay controllers 130. Since the other remaining components are the same as those of the above-described wired relay control apparatus 130, a detailed description thereof will be omitted.

The central control unit 160 communicates wirelessly with the wireless relay controller 150 installed at approximately 10 km using a CDMA communication network, and issues a command based on data received from the wireless relay controller 150. The wire relay control device 130 and the lamp unit 110 connected to the wireless relay control device 150 is made to control.

On the other hand, the CDMA communication network is disconnected due to a failure or bad weather of the device, in case the communication between the central control unit 150, the wireless relay controller 150 and the wired relay controller 130 is interrupted, the wired The CPU of the relay controller 130 may be programmed to control the lamp unit 110, the solar cell 140, and the vehicle traffic detection device 120 alone when communication is lost.

On the other hand, when the failure or inspection of the lamp unit 110, the portable control device 170 may be further provided so that the operator can check while carrying.

As shown in FIG. 7, the portable control device 160 includes an external connection connector 171, a communication converter 172, a battery 178, a charging device 177, and a CPU 175. Can be.

Since the portable control device 170 is to be operated outdoors, it is preferable that the battery 178 and the charging device 177 are provided. In general, since the operator often moves to the vehicle, the charging device 177 is preferably made to receive power from the vehicle.

The external connection connector 171 is a component connected to the external connection connector 111 of the lamp unit 110 to be checked. The lamp unit 110 communicates with the lamp unit 110 through the external connection connector 111, and supplies power of the battery 178 to the lamp unit 110.

The power of the battery 178 is transferred to the CPU 114 and the light source 116 of the lamp unit 110 and other electronic circuits through the external connection connector 111 of the lamp unit 110 via the voltage converter 179. Supplied.

In addition, the data signal input to the lamp unit 110 through the external connection connector 171 is transmitted to the CPU 114 via the signal conversion device 113, at this time the lamp unit connected to the external connection connector 171 The current consumption according to the operation state of 110 is measured and transmitted to the CPU 175 of the portable control device 170, and the CPU 175 displays the received data on the LCD display window 174.

In addition, the portable control device 170 may include an input device such as a keypad 176, and the input device 176 is configured to input and transmit a command to the lamp unit 110. In this case, the command is transmitted from the CPU 175 of the portable control device 170 to the lamp unit 110 via the communication converter 172 through the external connection connector 171.

As described above, the preferred embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

1 is a diagram illustrating a configuration of a road lighting system of one embodiment of the present invention;

2 is a block diagram showing a configuration of a lamp unit of the road lighting system of FIG.

3 is a diagram illustrating an example in which a vehicle traffic detection apparatus of the road lighting system of FIG. 1 is installed on a road;

4 is a block diagram showing the configuration of the vehicular traffic detecting apparatus of FIG.

5 is a block diagram showing the configuration of the wired relay control apparatus of FIG. 1;

6 is a block diagram showing the configuration of the wireless relay control device of FIG. And,

7 is a block diagram showing the configuration of the portable control device of FIG.

<Description of the symbols for the main parts of the drawings>

110: lamp unit 120: vehicle traffic detection sensor

130: wired relay controller 140: solar cell

150: wireless relay control device 160: central control device

170: portable control device

Claims (11)

A lamp unit having at least one light source and arranged along the roadway; It is provided at predetermined intervals, the vehicle traffic detection device for detecting whether the traffic on the road; A wired relay control device provided for each of the plurality of lamp units to supply power to the plurality of lamp units and the vehicle traffic detection device and to control the lamp unit and the vehicle traffic detection device; It is connected to the plurality of wired relay control devices, and the communication between the central control device and the central control device to issue a command based on the data transmitted from each wired relay device via a wireless communication network for bidirectional relaying the wired relay control device and the central control device. Wireless repeater; Road lighting system comprising a. The method of claim 1, The lamp unit is a road lighting system, characterized in that using the LED as a light source. The method of claim 1, The wired relay control device, Road lighting system, characterized in that for controlling the brightness of the light source of the lamp unit in multiple stages. The method of claim 1, The wired relay control device, Road lighting system, characterized in that for controlling the flashing period of the light source of the lamp unit. The method of claim 3, The wired relay control device, If it is determined that there is no vehicle on the road through the vehicle traffic detection device, the road lighting system characterized in that the power saving control to darken the brightness of the lamp unit or to turn off the light source. The method of claim 1, The lamp unit, It further includes a temperature sensor for measuring the internal temperature, a heater for raising the internal temperature and a heat radiating fan for dissipating heat therein, The wired relay control device, Road lighting system, characterized in that for selectively driving the heat radiating fan or heater as the temperature information of the lamp unit measured by the temperature sensor of the lamp unit. The method of claim 1, Road lighting system further comprises a solar cell for supplying power to the lamp unit. The method of claim 1, The wired relay control device, The road lighting system, characterized in that for controlling the lamp unit alone when communication with the central control unit is lost. The method of claim 1, The wired relay control device, The road lighting system, characterized in that by measuring the amount of power consumed by each lamp unit, to monitor the failure of the lamp unit. The method of claim 1, The vehicle traffic detection device is a road lighting system, characterized in that for detecting the presence or absence of vehicle traffic by the ultrasonic method. The method of claim 1, And a portable control device connected to the individual lamp units to check the state of the lamp units.

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