CN103338565A - Intelligent illumination control system and method based on wireless sensor network - Google Patents

Abstract

The intelligent lighting control system based on the wireless sensor network includes a server, an indoor terminal, a floor switch, a wireless gateway, multiple lighting devices installed in the building, and wireless lighting control devices corresponding to the lighting devices one by one. An intelligent lighting control method based on a wireless sensor network, which sends a control command to a floor switch through an indoor terminal or a mobile terminal, and the floor switch forwards the received control command to the wireless gateway, and the wireless gateway performs protocol conversion on the received control command, and The converted control command is sent to the corresponding wireless lighting control device, and the wireless lighting control device controls the lighting device to work. The invention makes up for the deficiency of traditional building lighting control, utilizes the comprehensive perception, reliable transmission and intelligent processing of the Internet of Things, effectively improves the power consumption efficiency of building lighting, saves electric energy, and facilitates management.

Description

Intelligent lighting control system and method based on wireless sensor network

technical field

The invention relates to the technical field of building intelligent lighting control, in particular to an intelligent lighting control system and method using a wireless sensor network.

Background technique

Since the first intelligent building appeared in the United States in 1984, intelligent buildings have become the development trend of today's intelligent buildings. With the development and progress of new technology, new equipment, new technology, and new materials, a large number of intelligent building projects emerged in large and medium-sized cities such as Beijing, Shanghai, and Guangzhou in the 1990s. Lighting control system is an indispensable system of building electrical engineering. Its development has undergone essential changes with the continuous development of information technology. The traditional lighting control system has been replaced by intelligent lighting control system.

With the rapid development and mutual penetration of computer technology, communication technology, automatic control technology, bus technology, signal detection technology and microelectronic technology, lighting control technology has made great progress, and lighting has entered the era of intelligent control. The main purpose of realizing the intelligentization of the lighting control system is twofold: one is to improve the control and management level of the lighting system and reduce the maintenance cost of the lighting system; the other is to save energy and reduce the operating cost of the lighting system.

The development of lighting control has gone through three stages: manual control, automatic control and intelligent control.

(1) Manual control

The initial stage is manual control, that is, using switches and other components to start and close lighting appliances with the simplest manual operation, so as to meet the lighting requirements and achieve the purpose of lighting. At this time, the control of the lighting only stays in allowing the user to manually turn on the lighting appliance when necessary, and it cannot be turned on and off automatically.

(2) Automatic control

With the development of electrical technology, lighting control has entered the stage of automatic control, which is characterized by light, electricity, sound and other technologies to control lamps. The disadvantage of the automatic control method is that there is less interaction with people, it is limited to the control of a single or a single group of lamps, and it is difficult to complete the networked monitoring task.

(3) Intelligent control

The intelligent lighting control system takes computer and network technology as the core, uses microprocessor technology and storage technology to process the information about the lighting status of the building from the sensor, and controls the equipment in the lighting circuit through certain program instructions, calling Different programs, performing different functions, can achieve different lighting levels and create different atmospheres and environments. The intelligent lighting control system is a fully digital, analog and distributed control system. The whole system is composed of various functional modules such as management module, dimming module, detection module and operation module. Each module contains a microprocessor and memory, and each function of the system is stored in a module. The system network connection only needs to be connected through the bus, which can be a common five-type twisted pair, or modulated on the power line through a carrier wave, or communicate through a wireless network.

Compared with traditional lighting control systems, intelligent lighting control systems have many advantages in terms of control methods, lighting methods, management methods, wiring, and energy saving. Traditional lighting control is a combination of energy and information flow. The control is simple, effective and intuitive, but the system cannot be changed after the wiring is completed; in addition, when complex control requirements are realized, the amount of wiring will be greatly increased, which makes the system Reliability declines, and once a mistake is made, the inspection of the line is also quite time-consuming and laborious. With the launch of a large number of commercial office buildings and duplex residences, office building managers and users need to monitor the real-time working conditions of lighting fixtures, and traditional technologies are helpless. As for providing a safe, comfortable, and convenient living environment, realizing the linkage of lamps and lanterns, and automatically controlling or controlling the brightness of lights according to the environment, traditional technologies are powerless. In short, traditional lighting control systems can no longer meet modern control requirements.

As early as the 1970s, the prototype of sensor network formed by using point-to-point transmission of traditional sensors and connecting sensor controllers, we classified it as the first type of sensor network. With the continuous development and progress of related disciplines, the sensor network also has the comprehensive processing ability to obtain a variety of information signals, and through the connection with the sensor controller, a sensor network with information synthesis and processing capabilities is formed. Second generation sensor network. Since the end of the last century, fieldbus technology has been applied to sensor networks. People use it to build intelligent sensor networks. A large number of multifunctional sensors are applied and connected using wireless technology. Wireless sensor networks are gradually formed.

Contents of the invention

One purpose of the present invention is to provide an intelligent lighting control system based on a wireless sensor network, which makes up for the shortcomings of traditional building lighting control, and effectively improves the power consumption efficiency of building lighting by using the comprehensive perception, reliable transmission and intelligent processing of the Internet of Things , save electric energy, easy to manage.

The purpose of the present invention is achieved through such a technical solution, the server, the indoor terminal, the floor switch, the wireless gateway, a plurality of lighting devices installed in the building and wireless lighting control devices corresponding to the lighting devices one by one;

The server receives the data sent by the floor switch, stores it and uploads it to the Internet, the floor switch interacts with the indoor terminal and the wireless gateway data respectively, and the wireless lighting control device accesses the wireless gateway through wireless networking technology to realize data interaction with the wireless gateway. The device connects to the house power line through a wireless lighting control device.

Further, the wireless lighting control device includes a single-chip microcomputer control module MCU, a power conversion module, a light detection module, an infrared detection module, a wireless communication module, an information feedback module and a relay control module;

The single-chip control module MCU receives and processes light information and infrared information, and controls the work of the breaker control module;

The light detection module senses the light intensity in the environment, processes the light information, and sends the processed light information to the single-chip microcomputer control module;

The infrared detection module senses the infrared information in the environment, and processes the infrared information, and sends the processed infrared information to the single-chip microcomputer control module;

The wireless communication module realizes the wireless communication between the wireless lighting control equipment and the wireless gateway, receives the control command issued by the wireless gateway, and uploads the status information of the lighting equipment;

The information feedback module sends the control command received by the wireless communication module to the single-chip control module MCU, and sends the lighting device status information uploaded by the single-chip control module to the wireless communication module;

The relay control module receives the control instructions sent by the single-chip control module and controls the lighting equipment.

Furthermore, the wireless lighting control device and the wireless gateway use the wireless IEEE802.15.4E communication protocol to realize data interaction. The wireless gateway receives the lighting device status information data uploaded by the wireless lighting control device, encapsulates it into an Ethernet data format, and sends it to the floor switch. Receive the command information from the floor switch, convert it and send it to the wireless lighting control device.

Further, the floor switch receives the control command sent by the indoor terminal through the RJ45 network interface, sends the control command to the wireless gateway, and at the same time receives the status information of the lighting equipment uploaded by the wireless gateway, and sends the received information to the indoor terminal through the RJ45 network interface and server.

Further, the system also includes a mobile terminal, which receives the information uploaded by the server through the Internet, and forwards the control instruction to the server to the switching plane.

Another object of the present invention is to provide an intelligent lighting control method based on a wireless sensor network, which realizes remote control and monitoring of building lighting equipment through the Internet of Things.

The purpose of the present invention is achieved through such a technical solution. The specific method is: the indoor terminal or the mobile terminal sends a control command to the floor switch, and the floor switch forwards the received control command to the wireless gateway, and the wireless gateway forwards the received control command to the wireless gateway. The control command performs protocol conversion, and the converted control command is sent to the corresponding wireless lighting control device, and the wireless lighting control device controls the lighting device to work.

Further, the wireless lighting control device collects ambient light information and infrared information, and adaptively adjusts the lighting state and intensity of the lighting device according to the received control instructions.

Further, the wireless lighting control device sends the lighting device status information to the wireless gateway, and the wireless gateway encapsulates the received information into Ethernet data format information and sends it to the floor switch, and the floor switch forwards the received information to the indoor terminal and the server respectively , the server uploads the received information to the Internet, and the mobile terminal receives the status information of the lighting equipment through the Internet.

Further, various scene control modes of the lighting equipment are stored in the indoor terminal and the mobile terminal.

Owing to adopting above-mentioned technical scheme, the present invention has following advantage:

1. No need for wiring, low cost, the combination of adaptive control and manual remote control prolongs the service life of lighting equipment and saves a lot of labor costs and material resources;

2. High lighting accuracy, good real-time performance, can effectively make corresponding control according to changes in the external environment, and can choose the scene control mode of anti-demand;

3. Through information feedback, the working status of lighting equipment can be monitored in real time, allowing managers to view information and make processing in a timely manner;

4. The self-built wireless communication network is highly interoperable with external networks, forming a ubiquitous network communication environment.

Other advantages, objects and features of the present invention will be set forth in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be obtained from It is taught in the practice of the present invention. The objects and other advantages of the invention will be realized and attained by the following description and claims.

Description of drawings

The accompanying drawings of the present invention are described as follows.

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic diagram of a wireless sensor network;

Figure 3 is a block diagram of intelligent lighting control equipment;

FIG. 4 is a diagram of an indoor lighting scene mode;

Figure 5 is a network planning diagram of the intelligent lighting control system.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

An intelligent lighting control system and method based on a wireless sensor network can make up for the shortcomings of traditional lighting control, effectively save electricity for building lighting, prolong the service life of lighting equipment such as lamps, and at the same time facilitate the control and management of managers. The present invention also provides corresponding system construction, and the whole system will be described in detail below.

As shown in Figure 1, the specific implementation of the present invention is an intelligent lighting system based on a wireless sensor network in a large-scale building construction, including: installing intelligent lighting control equipment in each different area of the building, and each control equipment is connected to lighting such as lamps The equipment is connected to the wireless gateway through wireless networking technology, and through the floor switch, on the one hand, it is connected to the indoor display terminal, on the other hand, it is connected to the server to connect to the remote PC through the Internet, and at the same time, the mobile phone and tablet can access the server through the wireless network. Through these smart terminals It can monitor and control the working status of lighting equipment in each area at any time, and managers can also check and deal with it in time. It is very suitable for large-scale building lighting control, saving manpower and material resources.

As shown in Figure 1, the wireless intelligent lighting control device is connected with external lighting equipment such as lamps and lanterns, without additional power supply, and only needs to perform corresponding necessary voltage conversion on the 220V lighting power supply. At the same time, the device can also sense external light and infrared light in real time When the environment changes, it can self-adaption sensor control, and at the same time, it can also be connected to the wireless gateway. The management personnel can remotely monitor and control the lighting equipment in each area through the smart terminal device at any time, so that the local lighting equipment in a certain area can be turned on. Turn it on, and turn off the energy saving effect if you don't need it.

The wireless gateway supports multiple wireless protocol data receiving and forwarding, and according to the user-defined wireless protocol and multiple wireless lighting control equipment networking, the status information of lighting equipment such as lamps is turned on or off, and real-time monitoring is performed. Wireless gateway and wireless lighting control The equipment uses the wireless IEEE802.15.4e protocol for communication networking, and then the wireless gateway converts the status information data format into an Ethernet data format and sends it to the floor switch, and the floor switch distributes the encapsulated information data to the indoor terminal and the local server. The server builds a database through SQL, analyzes, stores, and processes the energy consumption information, and then sends it to the Internet through the telecommunications broadband network for remote login webpage monitoring. The network construction layer connects the perception and identification layer and the management service layer in the four-layer model of the Internet of Things. It has a strong linking role and can efficiently, stably, timely and safely transmit the data of the upper and lower layers. The wireless gateway, the floor switch, and the local server serve as the connection bottom layer. Lighting control equipment and Internet bridge equipment integrate and realize the control commands of managers through TCP/IP, Ethernet, and wireless low-speed networks.

The indoor display terminal receives the status information data from the floor switch, converts it into data that the display terminal can call directly after parsing the Ethernet data format and stores it in the internal memory, and at the same time sends out control commands through the terminal interface, and the command information passes through The floor switch sends it to the wireless gateway, and then the gateway forwards it to the control device to complete the corresponding control operation; the local server uses the SQL database to save the data after receiving the status data information from the floor switch, analyzing and processing it. At the same time, smart terminals such as tablets or mobile phones can access the server through the Internet, and log in to the developed Android and IOS client programs to view information and issue control commands.

The schematic diagram of the wireless sensor network is shown in Figure 2. The wireless sensor network consists of sensor nodes, wireless gateways, and upper-layer PC terminals. The sensor nodes are responsible for placing in the area to be monitored, responsible for collecting and collecting data information in the monitoring area, and uploading the collected data to the wireless gateway, and the data transmission is wireless transmission; the wireless gateway is the center of the entire network system, responsible for Data reception and forwarding, while communicating with sensor nodes wirelessly, the wireless protocol conversion will be completed during this communication process, and when communicating with the upper-level PC terminal, it is generally transmitted through Ethernet; the upper-level PC terminal is for data storage and Processing and completing the required operation instructions, while monitoring the working conditions of the underlying sensor nodes. In the present invention, the sensor node is a wireless lighting control device, which is responsible for lighting monitoring in a building or a family room.

As shown in Figure 3, wireless intelligent lighting control equipment mainly includes single-chip control module MCU, power conversion module, light detection module, infrared detection module, CC2530 wireless communication module, information feedback module and relay control module. Single-chip microcomputer control module: as the core of the control equipment, it mainly processes the received light information and infrared information, and drives the relay to work at the same time; power conversion module: provides appropriate working voltage for each module to ensure that each part can work normally; light detection Module: sense the light intensity in the environment, process the light information, and finally send the processed light information to the microcontroller; infrared detection module: sense the infrared information in the environment, process the infrared information, and finally send the processed light information to the microcontroller. Infrared information is sent to the single-chip microcomputer; CC2530 wireless communication module: mainly used for wireless communication between the wireless gateway and the underlying control equipment, receiving control instructions issued by the gateway and uploading the status information of the controlled object; information feedback module: mainly capable of realizing gateway and The two-way communication between the bottom devices can not only receive the control instructions sent by the upper layer to the bottom layer, but also feed back the information of the controlled object of the bottom device to the upper layer, and then display it through the intelligent terminal; the relay control module: mainly completes the MCU The drive control command sent by the control module controls the controlled object (lighting equipment). The wireless intelligent lighting control equipment can support ZIGBEE, 6LowPan, 802.15.4, 802.11, WIPA and other wireless communication protocols at the same time, which is suitable for the development and utilization of different occasions.

As shown in Figure 4, the indoor scene mode diagram of this embodiment provides a good choice for family indoor lighting. According to different indoor divisions, different scene modes are set according to the needs of residents, and each mode will be different. According to the preset scene mode, residents can choose the lighting requirements that meet their own needs on the mobile terminal or indoor terminal to realize a humanized lighting control.

As shown in FIG. 5 , the network planning diagram of the intelligent lighting control system in this embodiment, the lighting system consists of a three-layer and two-level network consisting of a main control node, multiple sub-control nodes and more unit nodes. At the bottom, the unit node is responsible for the state detection and control output of the lighting scene, which can be specific to a room, a relatively independent area or other occasions that require more associated control. At the top, the master control node is responsible for the functional coordination and status monitoring of the entire system. On the one hand, the master control node collects the status information of the unit nodes and executes the necessary local centralized control. On the other hand, it may also connect to the local area network through the advanced network interface when necessary, and provide periodic data reports and receive control data and information according to the requirements of the senior management department. control commands. Between the main control node and the unit node is a sub-control node. The main control node is connected to the sub-control node through the first-level network, and the sub-control node is further connected to the unit node through the second-level network. When controlling the buildings of the entire system, the main control node The control node is usually located in the central control room of the main building, and the sub-control nodes can be arranged in the central control room of each branch building. When the control scale of the whole system is small, it can be considered to cancel the sub-control nodes, and the main control nodes are directly connected to the unit nodes through the first-level network. This network structure can be large or small, and the combination is convenient. It can be used for new building design. Old buildings can also be remodeled.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should be included in the scope of the claims of the present invention.

Claims (9)

1. An intelligent lighting control system based on a wireless sensor network, characterized in that: the system includes a server, an indoor terminal, a floor switch, a wireless gateway, a plurality of lighting devices installed in the building, and a wireless network corresponding to the lighting devices. lighting control equipment; The server receives the data sent by the floor switch, stores it and uploads it to the Internet, the floor switch interacts with the indoor terminal and the wireless gateway data respectively, and the wireless lighting control device accesses the wireless gateway through wireless networking technology to realize data interaction with the wireless gateway. The device connects to the house power line through a wireless lighting control device. 2. The intelligent lighting control system based on wireless sensor network according to claim 1, wherein the wireless lighting control device includes a single-chip microcomputer control module MCU, a power conversion module, a light detection module, an infrared detection module, a wireless communication module, information feedback module and relay control module; The single-chip control module MCU receives and processes light information and infrared information, and controls the work of the breaker control module; The light detection module senses the light intensity in the environment, processes the light information, and sends the processed light information to the single-chip microcomputer control module; The infrared detection module senses the infrared information in the environment, and processes the infrared information, and sends the processed infrared information to the single-chip microcomputer control module; The wireless communication module realizes the wireless communication between the wireless lighting control equipment and the wireless gateway, receives the control command issued by the wireless gateway, and uploads the status information of the lighting equipment; The information feedback module sends the control command received by the wireless communication module to the single-chip control module MCU, and sends the lighting device status information uploaded by the single-chip control module to the wireless communication module; The relay control module receives the control instructions sent by the single-chip control module and controls the lighting equipment. 3. The intelligent lighting control system based on wireless sensor network as claimed in claim 1, characterized in that: the wireless lighting control device and the wireless gateway adopt the wireless IEEE802.15.4E communication protocol to realize data interaction, and the wireless gateway receives the data uploaded by the wireless lighting control device The status information data of lighting equipment is encapsulated into Ethernet data format and sent to the floor switch, and at the same time, the instruction information of the floor switch is received, converted and sent to the wireless lighting control device. 4. The intelligent lighting control system based on wireless sensor network according to claim 1, characterized in that: the floor switch receives the control command sent by the indoor terminal through the RJ45 network interface, sends the control command to the wireless gateway, and simultaneously receives the control command from the wireless gateway. The uploaded lighting equipment status information is sent to the indoor terminal and the server through the RJ45 network interface respectively. 5. The intelligent lighting control system based on wireless sensor network as claimed in claim 1, characterized in that: said system also includes a mobile terminal, which receives the information uploaded by the server through the Internet, and forwards the control instructions to the server to the switching surface . 6. The method for intelligent lighting control using the lighting control system according to any one of claims 1 to 5, characterized in that, the specific method is: send a control instruction to the floor switch through the indoor terminal or mobile terminal, and the floor switch will receive the The control command is forwarded to the wireless gateway, and the wireless gateway performs protocol conversion on the received control command, and sends the converted control command to the corresponding wireless lighting control device, and the wireless lighting control device controls the lighting device to work. 7. The intelligent lighting control method based on wireless sensor network as claimed in claim 6, characterized in that: the wireless lighting control device collects ambient light information and infrared information, and adaptively adjusts the brightness of the lighting device according to the received control instructions. Lighting state and intensity. 8. The intelligent lighting control method based on wireless sensor network according to claim 7, characterized in that: the wireless lighting control device sends the lighting device status information to the wireless gateway, and the wireless gateway encapsulates the received information into an Ethernet data format The information sent to the floor switch, the floor switch forwards the received information to the indoor terminal and the server respectively, the server uploads the received information to the Internet, and the mobile terminal receives the status information of the lighting equipment through the Internet. 9. The intelligent lighting control method based on wireless sensor network according to claim 6, characterized in that: various scene control modes of lighting equipment are stored in the indoor terminal and the mobile terminal.

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