CN203258533U - Intelligent LED street lamp system with temperature compensation function - Google Patents

Abstract

The utility model relates to an intelligent LED street lamp system with temperature compensation function, which comprises a control terminal and node controllers arranged on each road section; the control terminal comprises a mains supply detection circuit, a first microprocessor, a first PLC communication module and a power conversion device, wherein the mains supply detection circuit, the first PLC communication module and the power conversion device are electrically connected with the first microprocessor; the node controller comprises a second PLC communication module, an illumination sensor, two mobile sensors, a plurality of LED drivers integrated with a temperature detection module and a second microprocessor, and the second PLC communication module, the illumination sensor, the mobile sensors and the LED drivers are all electrically connected with the second microprocessor; the first PLC communication module is connected with the second PLC communication module. The utility model discloses realize remote communication, intelligent temperature compensation and self-adaptation luminance adjustable function.

Description

An intelligent LED street lamp system with temperature compensation function

technical field

The utility model relates to an LED street lamp system.

Background technique

At present, the intelligent management schemes involved in LED street lights for outdoor lighting often simply apply some commonly used intelligent control technologies in other fields, such as Zigbee, GPRS, CDMA, etc. One thing in common of these wireless control technologies is to use wireless remote control and telemetry terminal equipment to replace the field bus, a way to wirelessly control remote equipment, but the disadvantages that follow are either too high cost or poor performance, so In order to realize a truly effective control system for wireless intelligent lighting LED street lights, a compromise must be made between cost and performance.

Utility model content

The purpose of the utility model is to propose an intelligent LED street lamp system with temperature compensation function, which can solve the problems of high cost and poor performance of the current LED street lamp system.

In order to achieve the above object, the technical scheme adopted in the utility model is as follows:

An intelligent LED street lamp system with temperature compensation function, which includes a control terminal and a node controller installed on each road section; the control terminal includes a mains detection circuit, a first microprocessor, a first PLC communication module and a power The conversion device, the commercial power detection circuit, the first PLC communication module and the power conversion device are all electrically connected to the first microprocessor; the node controller includes a second PLC communication module, an illumination sensor, two motion sensors, a plurality of The LED driver integrated with the temperature detection module and the second microprocessor, the second PLC communication module, the light sensor, the motion sensor, and the LED driver are all electrically connected to the second microprocessor; the power conversion device provides an operating voltage for the LED driver; The LED driver drives the corresponding LED street lamp to work; the first PLC communication module is wirelessly connected with the second PLC communication module.

Preferably, the two movement sensors are respectively installed at the start and end of the corresponding road section, and the two movement sensors are respectively located at the uplink side and the downlink side of the corresponding road section.

The utility model has the following beneficial effects:

Use low-cost, high-performance power carrier communication technology (PLC communication module) and light sensor, motion sensor and temperature detection module to realize long-distance communication, intelligent temperature compensation and adaptive brightness adjustable functions.

Description of drawings

Figure 1 is a schematic structural diagram of an intelligent LED street lamp system with temperature compensation function according to a preferred embodiment of the present invention.

Detailed ways

Below, the utility model will be further described in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, an intelligent LED street lamp system with temperature compensation function includes a control terminal and a node controller installed on each road section.

The control terminal includes a mains detection circuit, a first microprocessor, a first PLC communication module and a power conversion device, and the mains detection circuit, the first PLC communication module and the power conversion device are all electrically connected to the first microprocessor .

The node controller includes a second PLC communication module, an illumination sensor, two motion sensors, a plurality of LED drivers integrated with a temperature detection module and a second microprocessor, a second PLC communication module, an illumination sensor, a motion sensor, an LED The drivers are electrically connected with the second microprocessor.

The power conversion device provides working voltage for the LED driver; the LED driver drives the corresponding LED street lamp to work; the first PLC communication module is wirelessly connected with the second PLC communication module.

The two motion sensors are respectively installed at the start end and the end of the corresponding road section, and the two motion sensors are respectively located at the uplink side and the downlink side of the corresponding road section.

The working principle of this embodiment is as follows:

The commercial power is detected by the commercial power detection circuit. If the input commercial power is normal, the first microprocessor transmits the commercial power to the node controller through the power conversion device to provide working voltage for the LED driver.

The light sensor of the node controller is used to detect changes in the light of the external environment and transmit the corresponding light signal to the second microprocessor, and the second microprocessor compares the light signal with the preset light threshold to obtain a comparison signal , the second microprocessor sends the comparison signal to the first microprocessor through the second PLC communication module and the first PLC communication module, and the first microprocessor converts the comparison signal into a control signal, and communicates through the first PLC The module and the second PLC communication module transmit the control signal to the second microprocessor, and the second microprocessor controls the output current of the LED driver according to the control signal to change the brightness of the LED street lamp.

The mobile sensor is used to detect changes in the flow of people and vehicles on the road section and output the corresponding flow analog quantity to the second microprocessor. The second microprocessor converts the flow analog quantity into a flow digital quantity and transmits it through the second PLC communication module. , the first PLC communication module transmits to the first microprocessor, and the first microprocessor outputs the flow control signal to the second microprocessor through the first PLC communication module and the second PLC communication module according to the flow digital quantity, so that the second The microprocessor controls the output current of the LED driver to achieve the purpose of controlling the brightness of the LED street lamp. For example, the mobile sensor can sense the distance of 1/2 of the width of the road section. Taking the domestic vehicle traffic standard as an example, when someone or a vehicle passes on the left side of the road section, the street lamps on the left side of the road section will light up. Consistent, when people or vehicles pass from the right side of the road section, a row of street lights on the right side of the road section will light up.

The LED driver is integrated with a temperature detection module. When the internal operating temperature of the LED driver exceeds the preset threshold, the LED driver can automatically reduce the output current to achieve the purpose of temperature compensation.

(1) It is possible to control the use of street lamps without manual monitoring, and at the same time, it can also remotely control LED street lamps indoors through the main control unit through manual operation; (2) Street lamps can be selected according to the intensity of external light (3) The brightness of the street lamp can be selected according to the traffic of vehicles and pedestrians on the road; (4) The LED driver has the function of automatic temperature compensation, which can effectively reduce the heat dissipation of the LED lamp and increase the service life of the LED lamp, thereby reducing the maintenance of the LED street lamp Cost; (5) Because only light sensors and motion sensors are installed on each node controller, instead of installing on each LED street lamp in the traditional way, this further reduces the implementation cost.

For those skilled in the art, various other corresponding changes and modifications can be made according to the technical solutions and ideas described above, and all these changes and modifications should fall within the protection scope of the claims of the present invention .

Claims (2)

1. An intelligent LED street lamp system with temperature compensation function is characterized in that it comprises a control terminal and a node controller installed on each road section; the control terminal comprises a mains detection circuit, a first microprocessor, a first The PLC communication module and the power conversion device, the mains detection circuit, the first PLC communication module and the power conversion device are all electrically connected to the first microprocessor; the node controller includes a second PLC communication module, an illumination sensor, two The mobile sensor, a plurality of LED drivers integrated with the temperature detection module and the second microprocessor, the second PLC communication module, the light sensor, the mobile sensor, and the LED driver are all electrically connected to the second microprocessor; the power conversion device is an LED The driver provides working voltage; the LED driver drives the corresponding LED street lamp to work; the first PLC communication module is wirelessly connected with the second PLC communication module. 2. The intelligent LED street lamp system with temperature compensation function as claimed in claim 1, wherein the two motion sensors are respectively installed at the beginning and end of the corresponding road section, and the two motion sensors are respectively located on the corresponding road The uplink side and downlink side of the link.

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