CN204539531U - A Smart Street Light Control System - Google Patents

Abstract

The utility model discloses a wisdom street lamp control system, backstage surveillance center and road site control system including interconnect, road site control system includes accuse ware, a plurality of single lamp controller and a plurality of street lamp in the intelligence, and each street lamp all is connected with a single lamp controller, in the intelligence accuse ware pass through the power line with the single lamp controller is connected. The utility model provides an intelligent street lamp control system, adopt power line carrier technology to carry out data communication between intelligent central controller and the single lamp controller, utilize the circuit of transmission electric power in the current street lamp to transmit digital signal as communication medium, more reliable than wireless communication modes such as zigBee, the system cost also has more advantages; each street lamp is provided with a single lamp controller, the single lamp controller is combined with the intelligent central controller through the microwave sensor and other auxiliary sensors, the activity conditions of pedestrians and vehicles can be accurately judged, refined intelligent control management of the street lamps is achieved, and the energy-saving effect is obvious.

Description

A Smart Street Light Control System

technical field

The utility model relates to an intelligent street lamp control system, in particular to an intelligent street lamp control system based on power line communication and microwave sensing technology.

Background technique

At present, the energy problem has become a major issue restricting the sustainable development of the world economy. How to efficiently realize energy conservation, emission reduction and development of renewable energy has become the focus of global attention. my country is one of the countries with the most serious waste of natural resources in the world. Urban street lighting system is an important infrastructure of municipal construction. Urban public lighting accounts for 30% of my country's lighting power consumption. How to improve the effective utilization of street lights and reduce The waste of electric energy is an important means to realize energy saving. The main problems existing in the urban lighting monitoring system currently used in China are as follows: (1) The control accuracy is not high, and its control usually can only reach the level of the base station, which is far from the level of single-light monitoring. It is difficult to control the street lights according to the specific conditions of the road (2) It cannot adapt to the requirements of energy saving and monitoring of new light sources, especially there is no remote monitoring module for LED street lamps, and LED street lamps are environmentally friendly, pollution-free, low power consumption, light With the characteristics of high efficiency and long life, what significance does it have for the energy saving of urban street lighting systems.

Therefore, how to precisely control street lamps, especially LED street lamps, under the conditions of different illuminance, different traffic flow, etc., so as to realize power saving and energy saving, has become a major problem that needs to be solved urgently.

Utility model content

In order to overcome the deficiencies and existing problems of the existing technology, the utility model provides a smart street lamp control system, which has the advantages of precise control and intelligence, and at the same time, the control system realizes communication based on power line carrier communication technology, and has Good applicability and stability.

The utility model is realized through the following technical solutions: an intelligent street lamp control system, including a road field control system, the road field control system includes an intelligent central controller, a plurality of single lamp controllers and a plurality of street lamps, each street lamp Each is connected with a single lamp controller, and the intelligent central controller is connected with the single lamp controller through a power line.

Further, the smart street lamp control system also includes a background monitoring center connected to the Internet, and the road site control system is connected to the Internet through a GPRS wireless network.

Preferably, the single lamp controller includes a main controller, a street lamp drive control unit connected to the main controller, a power line carrier communication unit, a fault detection unit, a power grid power detection unit, and sensor detection unit; the intelligent central controller includes the single lamp controller, GPRS communication unit, data storage unit, on-site debugging interface unit and RTC unit, the GPRS communication unit, data storage unit, on-site debugging interface unit and The RTC units are all connected with the main controller in the intelligent central controller.

Preferably, the main controller is an ARM processor; the sensor detection unit includes a pyro-infrared sensor, a microwave sensor, a photosensitive sensor and a sound sensor; and the street lamp is an LED street lamp.

Compared with the prior art, the intelligent street lamp control system provided by the utility model adopts the power line carrier technology for data communication between the intelligent central controller and the single lamp controller in the road field control system, and utilizes the power transmission line in the existing street lamp As a communication medium to transmit digital signals, it is more reliable than wireless communication methods such as ZigBee, and the system cost is also more advantageous; each street lamp is equipped with a single-lamp controller, and the single-lamp controller and the intelligent central controller use microwave sensors and Combined with other auxiliary sensors, it can accurately judge the activities of pedestrians and vehicles, realize refined intelligent control and management of street lamps, and achieve remarkable energy-saving effects.

Description of drawings

Fig. 1 is a schematic block diagram of the system structure of the intelligent street lamp control system in the embodiment of the present invention;

Fig. 2 is a schematic block diagram of the structure of the single lamp controller in the embodiment of the utility model;

Fig. 3 is a schematic block diagram of the structure of the intelligent central controller in the embodiment of the utility model.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a smart street lamp control system includes an interconnected background monitoring center and a road site control system. The road site control system includes an intelligent central controller, multiple single lamp controllers, and multiple street lamps. Each street light is connected to a single lamp controller, and the intelligent central controller is connected to the single lamp controller through a power line; the single lamp controller can be directly connected to the intelligent central controller through a power line, or two adjacent single lamps The controllers are connected through power lines, and finally one of the single lamp controllers is connected with the intelligent central controller through power lines. In this embodiment, the street lamp is preferably an LED street lamp, and the background monitoring center is connected to the road site control system through the Internet, wherein the background monitoring center is connected to the Internet through a firewall, and the road site control system is connected to the Internet through a GPRS wireless network .

In the road field control system, the intelligent central controller can be regarded as a main node, and the single lamp controller is a sub-node, and data transmission is carried out between the main node and the sub-nodes through power line carrier communication; a main node can manage Multiple sub-nodes are controlled, and each sub-node controls an LED street lamp correspondingly; passive control commands and detection data of sub-nodes can only be uploaded to the background monitoring center through the main node.

As shown in Figure 2, the single lamp controller includes a main controller, a street lamp drive control unit connected to the main controller, a power line carrier communication unit, a fault detection unit, a grid power detection unit, and a unit for detecting the flow of people, Sensor detection unit for traffic flow or ambient light. In this embodiment, the main controller adopts an ARM processor, specifically an ARM Cortex-M3 processor whose model is STM32F103C8T6; the sensor detection unit includes an infrared emission sensor, a microwave sensor, a photosensitive sensor and a sound sensor. Through the single-lamp controller, functions such as switching, dimming, and time-sharing delayed start of LED street lamps, as well as data communication, human-vehicle detection, and fault detection can be realized.

The intelligent central controller provided by this embodiment has a structural schematic diagram as shown in accompanying drawing 3. It has all the functional units of a single lamp controller, and on its basis, a GPRS communication unit, data The storage unit, the on-site debugging interface unit and the RTC (Real-timeclock, real-time clock) unit can be understood as a single lamp controller with enhanced functions. The intelligent central controller realizes the wireless connection with the Internet through the GPRS communication unit, and realizes the data interaction between the road field control system and the background monitoring center; and the intelligent central controller is used for the road field control system through the data storage unit, the field debugging interface unit and the RTC unit. After running independently from the background monitoring center, it realizes the control of the single lamp controller and street lamps, so that users can control the street lamps according to the specific conditions of the road without going through the background monitoring center, so as to better achieve the purpose of energy saving.

The following is a brief description of some functional units of the single lamp controller or intelligent central controller:

The smart street lamp control system needs to realize precise control of street lamps under the conditions of different environmental illuminance, different flow of people or traffic, etc. The detection capability of the sensor detection unit is the key to achieve this goal. In this embodiment, the microwave sensor , infrared sensor, photosensitive sensor, sound sensor and other sensors to jointly form a sensor detection unit, and to realize accurate detection of pedestrians, cyclists and motor vehicles on the road, as well as the ambient light of the road, the single lamp control of this embodiment Both the controller and the smart central controller have this sensing detection capability, which effectively improves the stability and accuracy of the smart street lamp control system.

Among them, the microwave sensor is a device that uses microwave characteristics to detect some physical quantities, including sensing the existence of objects, moving speed, distance, angle and other information. Compared with other detection methods, this detection method has the following advantages: (1) Non-contact detection; (2) Not affected by temperature, humidity, noise, airflow, dust, light, etc., suitable for harsh environments; (3) Anti-radio frequency Strong interference ability; (4) The output power is small and does not pose any harm to the human body; (5) Long distance: the detection range exceeds 15 meters. The smart street lamp control system mainly uses microwave sensors to judge the movement of relatively large objects such as cars. The sensor detection unit in this embodiment can accurately determine the activities of pedestrians and vehicles by combining microwave sensors and other auxiliary sensors, and realize refined intelligent control and management of street lamps, with remarkable energy-saving effects. Microwave sensors, also known as microwave radar, are realized by using the Doppler principle of electromagnetic waves. At present, the application principle of microwave sensors is an existing technology, and other sensors such as infrared emission sensors, photosensitive sensors and sound sensors are also more mature in application. The sensors will not be described in detail here.

The data communication between the intelligent central controller and the single-light controller in the road site control system in this embodiment adopts the power line carrier technology, so both the intelligent central controller and the single-light controller are equipped with a power line carrier communication unit. Power Line Carrier (PLC=Power Line Carrier) is a unique communication method for power systems. Power Line Carrier Communication refers to the technology of using existing power lines to transmit analog or digital signals at high speed through carrier waves. Its biggest feature is that it does not need to re-establish the network , As long as there are wires, data transmission can be carried out. Since the distribution transformer has a blocking effect on the power carrier signal, the power carrier signal can only be transmitted within the area of a distribution transformer. Therefore, the two devices (smart central controller or single light controller) are all under the same distribution transformer and are on a continuous short-distance direct connection line, so the power line carrier communication unit can fully meet the data communication requirements in the road field control system, ensuring the reliability of communication and transmission efficiency. At present, the application of the power line carrier technology is relatively mature. The power line carrier communication unit in this embodiment can realize data communication by using the existing technology, and the power line carrier communication unit will not be described in detail here.

In addition, the street lamp drive control unit, fault detection unit, grid power detection unit, GPRS communication unit, data storage unit, on-site debugging interface unit, and RTC unit described in this implementation are all functional units that can be realized in the prior art. No further explanation here.

The smart street lamp control system provided by the utility model is based on the power line communication and microwave sensing technology, and it is applied to the urban street lamp lighting system, which provides a smart management method for street lamp energy saving and achieves significant energy saving benefits, which is different from the existing Compared with the technology, the intelligent street lamp control system provided by the utility model has the following advantages:

(1) The power line carrier technology is used for data communication between the intelligent central controller and the single lamp controller in the road site control system, and the digital signal is transmitted by using the power transmission line in the existing street lamp as the communication medium, compared with wireless communication such as ZigBee The method is more reliable, and because there is no need to re-establish the network, data transmission can be performed only by using the existing power line, which makes the system cost lower.

(2) Each street lamp is equipped with a single lamp controller. The single lamp controller and the intelligent central controller can accurately judge the activities of pedestrians and vehicles through the combination of microwave sensors and other auxiliary sensors, and realize the refined intelligent control and management of street lamps. , The energy saving effect is remarkable.

(3) The upgrading and networking of LED street lamps can be completed quickly, and intelligent control can not only save a lot of power consumption, but also prolong the service life of street lamps, and has high economic and social benefits.

(4) Using the background monitoring center for remote control and management, real-time monitoring of the operating status of all street lights and the working parameters of the street light grid can reduce the workload of manual inspection of street lights and reduce maintenance costs.

(5) The intelligent central controller and single lamp controller in the road site control system can perform independent control and management work without the background monitoring center. The intelligent central controller is used as the control core and cooperates with the single lamp controller to form a partial intelligent The control system controls the LED street lights accordingly, so users can flexibly configure the composition of the system according to actual needs, so as to reduce the investment scale of the system and further reduce the system cost.

The above embodiments are preferred implementations of the utility model, and are not limitations of the utility model. Any obvious replacements are within the protection scope of the utility model without departing from the inventive concept of the utility model.

Claims (6)

1. a wisdom street lamp control system, comprise road field control system, it is characterized in that: described road field control system comprises intelligent central controller, multiple single-lamp controller and multiple street lamp, each street lamp is all connected with a single-lamp controller, and described intelligent central controller is connected with described single-lamp controller by power line.

2. wisdom street lamp control system according to claim 1, is characterized in that: described single-lamp controller includes master controller, the street lamp driving control unit be all connected with master controller, power line carrier communication unit, fault detection unit, electric network source detecting unit and the transducer detecting unit for detecting the stream of people, wagon flow or ambient light;

Described intelligent central controller comprises described single-lamp controller, GPRS communication unit, data storage cell, field adjustable interface unit and RTC unit, and described GPRS communication unit, data storage cell, field adjustable interface unit and RTC unit are all connected with the master controller in intelligent central controller.

3. wisdom street lamp control system according to claim 2, is characterized in that: described master controller is arm processor.

4. wisdom street lamp control system according to claim 3, is characterized in that: described transducer detecting unit comprises heat and releases infrared sensor, microwave remote sensor, light sensor and sound transducer.

5. wisdom street lamp control system according to claim 1, is characterized in that: described street lamp is LED street lamp.

6. the wisdom street lamp control system according to any one of Claims 1 to 5, it is characterized in that: described wisdom street lamp control system also comprises the background monitoring center be connected with the Internet, described road field control system is by GPRS wireless network accessing Internet.