ES2413181B1 - WIRELESS SYSTEM AND PROCEDURE FOR ENERGY SAVING IN LIGHTING. - Google Patents

Abstract

The object of the patent is a system for energy saving in lighting based on microcontrollers, in which information is transmitted between devices wirelessly, wireless communication provides many advantages over wired systems: avoid wiring problems, saving economic, etc. # The proposed system forms wireless communication networks between its three fundamental parts whose operation I will explain briefly. # There is a part that the sensor system that has a solar light sensor that is what gives us the information of sunlight, installed on the facade of the building, this information is sent to the sensor system to the actuator system whose main part is the electronically adjustable ballast that regulates the power in the lighting. As a last part of the system, there is a control system that modifies operating parameters of the sensor system and the actuator system.

Description

Wireless system and procedure for energy saving in lighting.

SECTOR OF THE TECHNIQUE.

The invention falls within the area of electronic technology and telecommunications. It is applicable in all sectors in which luminaires are used as a means of lighting, these sectors can be: Industrial, construction, commercial, sanitary, educational, financial, etc.

STATE OF THE TECHNIQUE.

Next I will cilar some of the most current systems for lighting control.

Nowadays one of the most modern communication systems there is the DALI protocol.

The DALI (Digital Addressable Lighting Interface) protocol is a lighting control protocol designed to digitally control electronic ballasts that feed luminaires.

The standard that refers to this protocol is DIN lEC 60929, which regulates digital communication between ballasts thanks to electronic devices.

Many companies are working on this type of communications protocol for lighting control, some of them show information on projects that have carried out or provide information, in these links below Philips and Siteco show how they have implemented and adapted the OALI protocol to your projects.

http: //www.microbvte.clleledexpo/2007iluminacion/philipS.pdf

http://www.siteco.com.es/uploads/tx usersitecodownloads / 17 -kapitel15 en.pdf

The main features of the DALI system are the following:

Data transmission speed 1200 Baud.

The advantage of the system object of the patent with respect to the transmission speed of the DALI system is that the speed of the protocol with which one works at a configurable speed within the range of 1200 to 115200 bps, with values of 1200 bits / s, 2400 bits / s, 4800 bits / s, 9600 bits / s, 19.2 Kbits / s, 38.4 Kbits / s, 57.6 Kbits / s,

115.2 Kbits / s, on the other hand in the DALI protocol it works with 1200 Baud.

2-wire control line.

In the system object of the patent the control is wireless, the most common problems that appear in a wired system are: cable breakage, complexity in the installation of these systems since the cable runs through all the lighting, you also have to take into account that the cost derived from the installation of a wired system is much higher than that of a wireless system installation.

Wired network

The OALI protocol requires having a cable that runs through all the fluorescents that are going to be controlled and this usually causes problems, since in wired networks the cable could be broken, it must also be considered that the installation of these systems is more complex, since The cable will go through the fluorescents that have to be controlled regardless of where they are, the advantage in my system is that being wireless avoids all these problems. Another added factor is the price of the cable, since in the DALI protocol when using a wired network the installation is quite expensive, the system proposed to be wireless avoids the costs associated with the installation of the wiring.

Maximum of 64 teams per line.

In contrast, in the proposed system that is the object of the patent, the number of fluorescents to be controlled is practically unlimited, since:

Identifiers of different networks7 65535

Different transmission channels. -7 16

What it offers: 65535x16 = 1,048,560 different sensor networks that can have multiple associated actuators, then the number of fluorescents to be controlled is practically unlimited.

Up to 16 groups of lights with up to 16 predefined lighting scenes.

The advantage of the system proposed at this point is that it does not work with a limited number of light scenes (which work with the presence of a person), but uses sunlight to control the level of power with which they have to illuminate the fluorescents.

The amount of sunlight that is affecting the solar light sensor is quantified and depending on this value, the fluorescent is acted upon individually, that is, each fluorescent is unique.

In the system that is being described and object of the invention, the fluorescents are not turned off and on depending on a threshold or light limit (if there is light, the fluorescents are off and if there is not, the fluorescents are on), which is regulated it is the level of light with which the fluorescents are going to look, being able to be this of (1% ... 100%) of light, that is, of (1% ... 100%) of power.

The DALI protocol is a wired protocol, but there are currently communication protocols for luminaire control that are wireless.

There is a wireless protocol for the control of lights for wireless communications.

This system consists of a wireless control of lights thanks to predetermined scenes of light that have been previously recorded and that will be activated or not depending on the presence or not of people in a space.

This system does not control the light depending on the sunlight, but the light scenes that we want are programmed independently of the sunlight and will be activated with the detection of people.

This document does not talk about the number of devices that can be controlled, or the control distances. The link where the document is located is as follows:

http://www.broken-mind.com/iluminacion-inalambrica.php

The advantages of the proposed patent system with respect to this system are the following:

Virtually unlimited number of fluorescents to control, since they have:

S Different network identifiers ~ 65535

Different transmission channels-7 16

What they offer: 65535x16 = 1,048,560 different sensor networks that can have multiple associated actuators. Then the number of fluorescents to be controlled is practically unlimited.

10 It does not work with a limited number of light scenes that work with the presence of a person, but uses sunlight to control the level of power with which the fluorescents have to illuminate.

There is another system similar to the previous one, also wireless, in which more information is given, the microcontroller and the data transmitter are from the manufacturer 15 Motorola.

The link where the document is located is as follows:

htto: /lddd.uab.caVoubltrerecpro/2007/hdl 2072 5388 / PFCVazguezBrazo.pdf

According to the document of the previous link, this system has a distance of sending / receiving data wirelessly of approximately 10 meters, and 20 also plays with previously recorded scenes of light, as for the system object of the patent has wireless communication, said Communication can be carried out covering very large areas indoors (approximately 100 meters of radios indoors and 1500 meters outdoors more than enough for any type of building), since there is great power in the transmission, power that can be

25 control, and also emitting and receiving in free frequency bands, immune to noise that give guarantees against interference.

In the link lighting control system a system is described in which light sensors that would be inside the building could be attached to the system, instead the system proposed by the solar light sensors (which have a reduced size ) they will be placed on the facade of the building, in this way problems that arise when they are installed inside are avoided. Some of these problems are:

s light collection in dark areas that are created by shadows that can create office furniture, machines, obstacles of any kind, etc.

reflections of the light due to the capacity that some surfaces have that, due to their structure or coatings, reflect the light towards the sensor, regardless of the original angle of incidence, not really showing the level of sunlight in

10 that area.

problems that arise when the fluorescent light illuminates the solar light sensor itself that is usually installed next to the fluorescent that you have to control. In this way there can be a fluorescent feedback with the light sensor that controls the fluorescent itself.

15 As regards patents, there are some patented lighting control systems, they are as follows:

Reference

Title ES 2,113,120

DEVICE WITH MICROPROCESSOR FOR CONTROL AND MANAGEMENT OF LIGHTING ELEMENTS. AND PROCEDURE USING A DEVICE OF THIS TYPE.

ES 2,133,889

DEVICE FOR OPTIMIZED MANAGEMENT OF FLUORESCENT LAMPS.

ES 2,318,664

SYSTEM AND PROCEDURE FOR CONTROLLING A LIGHTING DEVICE.

The advantages of the proposed system with respect to the already patented systems in the previous table are those already explained with the systems discussed above.

BRIEF DESCRIPTION OF THE INVENTION.

It is a system based on microcontrollers that use a wireless communications protocol called ZigBee to transmit information between them about the ambient light that is affecting the different facades of the building, finally acting on an electronically adjustable ballast that will control the power with which a fluorescent.

In this system, several light sensors placed in different strategic points of the facade of a building will collect information from the sunlight that is reaching them, this information will be treated in one way or another depending on how we have configured the system. The fact of placing the sensors on the different facades of the building provides an innovative technical characteristic to the existing lighting control systems, since at present the solar light sensors that are used in the lighting control protocols are placed in the inside the building, which improves the light measurements.

The data generated in the sensor is sent wirelessly to the actuators, an actuator is an information receiver that is connected to the fluorescent which is what we want to control by modifying its power.

The fluorescent will look more or less depending on the voltage supplied by the actuator. The information that arrives at the actuator is the information received from the light sensor that is connected to the information transmitter.

Keep in mind that all installed equipment will work automatically, without the intervention of any person, although I will be able to modify the operation of the energy saver wirelessly at any time using software that I have created.

This equipment has the following advantages:

The information transmission speed of the system will be configurable within the range of 1200 to 115200 bps, with values of 1200 bits / s, 2400 bits / s, 4800 bits / s, 9600 bits / s, 19.2 Kbits / s, 38.4 Kbits / s, 57.6 Kbits / s, 115.2 Kbits / s.

The system is wireless, in this way the problems that appear in a wired system: cable breakage, installation complexity disappear. It should also be borne in mind that the cost derived from the installation in a wired system is much higher than in a wireless one, since the price of the cable is very high.

S On the other hand, a very important aspect is the number of devices that can be controlled, and in this system this is more than true, since the number of luminaires to be controlled is practically unlimited.

This system works with the information of sunlight that is reaching the sensor, it does not have previously recorded light scenes whose operation depends on the presence or absence of people in a work area.

The wireless communication between the parts of the system can be done covering very wide areas thanks to the great transmission power.

Detailed description of the drawings.

Figure 1: Figure showing the hardware scheme of the system in which

15 can observe the three main parts: 1.1, 2.2 and 3.3 that are in boxes with dotted and dotted contour lines.

1.1: Sensor device, is one of the three main parts of which the system as a whole is composed. The sensor device in turn is composed of sections: 1.a, 1.b, 1.c, 1.d and 1.e that I will describe later.

20 2.2: Actuator device, is one of the three main parts of which the system as a whole is composed. The actuator device in turn is composed of sections: 2.a, 2.b, 2.c, 2.d, 2.e, 2.1, 2.9, 2.h that I will describe later.

3.3: Control device, is one of the three main parts of which it is

Composed the system as a whole. The control device in turn is composed of sections: 3.a and 3.b, which I will describe later.

1.a: Solar light sensor, thanks to this device we will be able to have information on the level of sunlight that is reaching the building.

1.b: Microcontroller of the sensor device: 1.1.

t.e: Radio frequency transmitter / receiver, the main function of this system element is to receive information from the microcontroller: 1.b. and send it to the radio frequency receiver: 2.c of the actuator device: 2.2.

1.d: Memory where the operating parameters of the sensor device are stored: 1.1.

1, e: Sensor device power supply: 1.1.

2.8: Presence sensor, is connected to the microcontroller: 2.b, and depending on the presence or absence of people in the area to be controlled, the lighting operation will be controlled.

2.b: Microcontroller of the actuator device: 2.2.

2.c: Radio frequency receiver, the main function of this system element is to receive information from the radio frequency transmitter / receiver: 1.c, and send it to the microcontroller: 2.b.

2.d: Memory where the operating parameters of the sensor device are stored: 2.2.

2.e: Power supply of the actuator device: 2.2.

2. (: Mains voltage.

2.9: Electronically adjustable ballast is controlled by the microcontroller: 2.b. and controls 2.h.

2.h: Lighting that you want to control depending on sunlight.

3.a: Computer that has the system control software installed, and from which this information is sent to the radio frequency transmitter: 3.b.

3.b: Radio frequency transmitter of the control device: 3.3, which has the function of sending the control information to the radio frequency transmitter / receiver devices

1.c and radio frequency receiver 2.c.

Figure 2: It is a symbolic representation of two sensor devices and two groups of actuator devices that help to understand the operation of the system as a whole when installed in a building, as seen in the example explained in Figure 3.

s 1.1.a: Symbolic representation of a sensor device that will be used in the explanation of the operation of the equipment in a real case in Figure 3. and will belong to a network in which it communicates with a group of actuator devices denominated each of them 22.a. These actuator devices form the group indicated by the subscript a.

1.1.b: Symbolic representation of a sensor device that will be used in the explanation of the operation of the equipment in a real case in Figure 3. and will belong to a network in which it communicates with a group of actuator devices denominated each of them 2.2.b. These actuator devices form the group indicated by subscript b.

15 2.2.a: Symbolic representation of an actuator device that will be used in explaining the operation of the equipment in a real case in Figure 3. and will belong to the same network as the 1.1 .a sensor device. Several of the actuator devices 2.2.a form a group of actuator devices which is indicated by the subscript a.

20 2.2.b: Symbolic representation of an actuator device that will be used in explaining the operation of the equipment in a real case in Figure 3. and will belong to the same network as the sensor device 1.1.b. Several of the actuator devices 2.2.b form a group of actuator devices which is indicated by the subscript b.

25 Figure 3: Plan of the plan view of a part of an office building that will serve as an example to explain the location of two sensor devices 1.1.a and 1.1.b and two groups of actuator devices 2.2.a and 2.2.b , described in Figure 2. This figure is intended to explain the operation of the entire system object of the patent.

30 .1,: Solar light that affects the sensor devices: 1.1.a and 1.1.b.

From G1 to G2: group of fluorescents controlled by the group of actuator devices 2.2.a. The sensor device 1.1.a. and the group of actuator devices

2.2.a form a communications network.

From G1 * to Gr: group of fluorescents controlled by the group of actuator devices S 2.2.b. The sensor device 1.1 .b. and the group of actuator devices

2.2.b form a communications network.

Detailed description of the invention.

Once I have made a brief and global description of the invention, I will go on to explain it in more detail.

This project has three clearly differentiated components, first, the sensor subsystem consisting of one or more sensor devices 1.1, secondly, the actuator subsystem consisting of one or more actuator devices 2.2, and finally the control device 3.3.

lS Figure 1 shows the system as a whole, in this case it is formed by a single sensor device 1.1, a single actuator device 2.2 and the control device 3.3. Each of the parts of which the sensor device 1.1, actuator device 2.2 and the control device are also represented are represented.

3.3.

20 In Figure 2 we have a symbolic representation of two sensor devices

1.1.a and 1.1.b, and of two groups of actuator devices 2.2.a and 2.2.b. These representations will be used in the explanation of an example of system operation in a building that is what is shown in Figure 3.

a) Wireless networks that we are going to form.

2S The data will be transmitted without problems and wirelessly from the radio frequency transmitter / receiver 1.c of the sensor device 1.1, to the radio frequency receiver 2.c of the actuator device: 2.2.

Figure 1 shows the simplest example of operation, which would consist of a single sensor device 1.1, a single actuator device 2.2 and a control device 3.3, all parts forming a single wireless network. In this case and as Figure 1 shows the sensor device: 1.1, it will only send the information to the actuator device 2.2 that belongs to its network. Each sensor device: 1.1 can have several groups of actuator devices of type 2.2 associated. An example of this is Figure 3 in which we have a 1.1.8 sensor device that forms a wireless communications network with a group of 2.2.8 actuator devices, and we have another 1.1.b sensor device that forms another wireless communications network with a group of actuator devices 2.2.b. The representations of both the 1.1.a and 1.1 sensor devices. b as of the groups of actuator devices 2.2.a and 2.2.b are in Figure 2.

The operation of the system is going to be explained thanks to a part of a floor plan of an office building: Figure 3, in which two sensor devices are placed: 1.1.a and 1.1.b, and two groups of actuator devices 2.2.a and 2.2.b.

The sensor device 1.1.a is placed on a facade of the building represented in the plane, and the sensor device 1.1.b is placed on another facade of the building represented in the plane. Being a piece of plan in which only two facades of the building are drawn, I have only represented two sensor devices, 1.1.a and 1.1.b, but if we assume a rectangular building would represent four sensor devices, one on each of the facades .

To explain the operation of the system, I have assumed a building with two sensor devices 1.1.a and 1.1.b, they are represented symbolically differently because we are going to photograph different communication networks, that is, the sensor device 1.1.a quantifies or measures the sunlight, and depending on the level of light at that moment, will send some data to a group of actuator devices 2.2.a which are the only actuator devices that belong to your communications network, and therefore the only ones that can receive the information sent by the sensor device

1.1.a.

Also, on another facade of the building, we have another sensor device 1.1.b, which quantifies or measures sun, and depending on the level of light, it will send some data to a group of actuator devices 2.2.b that are the only actuator devices that belong to your communications network, and therefore the only ones that can receive the information sent by the sensor device 1.1.b.

Due to the fact of forming the two different wireless networks there is no collision in the data transmission.

s In the sensor device 1.1 we have a radio frequency information transmitter / receiver 1.c, and in the actuator device 2.2 we have a radio frequency information receiver 2.c.

Both 1.c and 2.c have great transmission power, which gives us the ability to transmit information over large distances 100m indoors and 1500m outdoors, and

10 allow wireless networks to be formed in which information is transmitted only to devices that are associated with the same network. In the system that is being explained there are two established networks:

Sensor device 1.1.a and group of actuator devices 2.2.a

Sensor device 1.1.b and group of actuator devices 2.2.b

15 The wireless electronic device used in the radio frequency transmitter / receiver

1 C

and the wireless electronic device used in the radio frequency receiver

2 C

It is the Xbee-Pro.

The information of the microcontroller 1.b of the sensor device 1.1 arrives at the radio frequency transmitter / receiver 1.c of the sensor device 1.1. The radio frequency receiver 2.c of the actuator device 2.2 sends the information to the microcontroller 2.b of the actuator device 2.2.

The radio frequency transmitter / receiver device: 1.c, will be controlled in the sensor device: 1.1, by a microcontroller: 1.b. The radio frequency receiving device: 2.c, will be controlled in the actuator device: 2.2, by a

25 microcontroller: 2.b

The microcontroller used in the prototype is the PJC18f4680 from the manufacturer Microchip, but another type of microcontroller could be used. The microcontrollers: 1.b and 2.b are connected to the memories: 1.d and 2.d respectively, in which the system operating parameters are to be recorded, and that come from the device

Control: 3.3. The memory that has been used is the 25LC160B but any other that can be connected to the microcontroller can be used.

Once explained the above it can be explained that:

The sensor device: 1.1 is formed by the union of the following components:

5 Light sensor: 1.a ~ which measures sunlight.

Microcontroller: 1.b.-? It has a programming code inside and sends one information or another to the sender / receiver of radio frequency information: 1.c.

Radio frequency transmitter / receiver: 1.c-7 receives information from microcontroller 1.b and sends it to the radio frequency receiver: 2.c that is associated with it since they are in the same network.

Memory: 1.d-? It records the configuration parameters for the different operating modes that the system may have and that come from the control device:

3.3. With these parameters, the sensor device microcontroller will be worked in one way or another: 1.b.

1S Sensor device power supply: 1 .e ~ power supply that feeds the sensor device with direct voltage.

The actuator device: 2.2 is formed by the union of the following components:

Radio frequency receiver: 2.c ~ receives information from the radio frequency transmitter / receiver: 1.c with which it is associated, and delivers it to the microcontroller: 2.b.

20 Microcontroller: 2.b ~ has a programming code inside. It receives the light information sent by the radio frequency receiver: 2.c and transforms it to a voltage value to be applied to an electronically adjustable ballast: 2.g.

Presence sensor: 2.a -7 to detect the presence of people and thus be able to lower the lighting power 2.h when there is no one in a work area

2S determined.

Electronically adjustable ballast: 2.g ~ element whose function is to control the power with which the lighting looks 2.h that are connected to it, from a continuous applied voltage.

Memory: 2.d ~ records the configuration parameters for the different operating modes that the system may have.

Actuator device power: 2.87 power supply that feeds the actuator device with direct voltage.

Ballast power supply: 2.17 power supply that feeds the ballast with alternating voltage.

Lighting: 2.h7 lighting of which we want to control its power. In this example we will control fluorescents, but it can be another type of lighting.

The symbolic representation of the groups of actuator devices is: 2.2.a and 2.2.b.

For the example to be explained below, two sensor devices have been placed on the facade of the building, which in the representation of the plan: Figure 3, are those represented by: 1.1.a and 1.1.b, and a group of actuator devices 2.2 .and a group of actuator devices 2.2.b.

Each of the sensor devices: 1.1.a and 1.1. b, will communicate solely and exclusively with the group of actuator devices with which they are associated in the same network.

In this case and in relation to Figure 3, the sensor device 1.1.a will communicate with the group of actuator devices 2.2.a and the sensor device 1.1.b will communicate with the group of actuator devices 2.2.b.

These actuator devices are responsible for receiving the information that the sensor that is associated with them has sent them and depending on how they are configured they will act accordingly on the relevant lighting system, for the example explained they are fluorescent. As can be seen in Figure 3, one of the actuator devices: 2.2.a will act on the group of luminaires: G1, another of the actuator devices: 2.2.a will act on the group of luminaires: G2. In the other

network, we will have a group of seven actuator devices: 2.2.b that will act with the fluorescent groups that go from G1 * to G7 *.

The sunlight reaches the sensor device: 1.1.8: 4, and it sends the information to all the actuator devices that are associated to its network in this case to the two 5 actuator devices 2.2.8, the information does not reach it to actuator devices: 2.2.b, because they do not belong to your network.

As you can see in Figure 3, there are two different networks.

The first network is composed of the sensor device: 1.1.a, which has two 2.2.8 actuator devices associated with its network, which will act on lighting: G1 and G2.

10 The second network is composed of the sensor device: 1.1 .b, which has seven actuator devices associated with its network: 2.2.b. These systems will act on lighting: G1 * to G7 *.

The hardware (electronic design) of the sensor devices 1.1.a and 1.1.b is the same, and the hardware (electronic design) of the group of actuator devices

15 2.2.a and the group of actuator devices 2.2.b are the same, what changes is the configuration they have recorded inside. The symbols of the sensor devices: 1.1 .a and 1.1.b, and of the groups of actuator devices: 2.2.a and 2.2.b I have drawn them differently so that it is better understood that each sensor device is associated with a group of devices actuators and only them, that is. the

20 other actuator devices that are not in the same network do not receive the information.

In this case the sensor device: 1.1.a will send the information to two actuator devices: 2.2.a, and each of the actuator devices 2.2.a will control a lighting group, in our example the lighting will be fluorescent, (being able

2S be another type). We have two lighting groups in this network: G1 and G2, all the fluorescents of the same group will look the same intensity.

In this network there is a group of fluorescent: G1 and it is composed of eight pairs of fluorescent, and the other group of this network is G2 that has four pairs of fluorescent. As previously mentioned, the information that reaches each 30 of the actuator devices from the sensor device is the same, but it does not

to be the same the intensity of light with which each group of fluorescent will look because that will depend on how each actuator device has been configured.

The explanation of the configuration of the actuator devices will be seen in the section Configuration of the actuator device.

S The sense that an actuator device can control a group of fluorescents is that in the area where this group of fluorescents are, we will have a working area (a set of tables, chairs, etc.), and in this area we will have the same sunlight as we are at the same distance from the windows, as we can see in Figure 3, a single actuator device: 2.2.8 will control a group of eight pairs of

10 fluorescent: G1.

The fluorescent group: G2, are configured thanks to the program that has the microcontroller: 2.b (belonging to the actuator device: 2.2.a) so that they shine with more power than the fluorescent group: G1, because they are further away from the window and in that work area there will be less sunlight: 4.

15 The same thing I have explained for this network is for the second network.

The sensor device: 1.1.b, receives sunlight: 4 and sends the information to the group of actuator devices 2.2.b, which are in its network. Each of the actuator devices: 2.2.b will control a group of fluorescents from G1 * to G7 *, with five pairs of fluorescents each group. The five fluorescent pairs of the same group 20 will shine with the same power because all of them are controlled by the same actuator device and are at the same distance from the windows, so in this case the fluorescent ones belonging to G1 * will shine less than the that belong to G2 'and the fluorescents that make up the group G2' will shine less than those of G3 'and so on hasla Gr, this being the fluorescent group that shines the brightest

25 because as we move away from the façade logically less light reaches the interior of the offices.

b) Light sensor device.

The light sensing devices: 1.1.a and 1.1.b are to be placed on the facade of the building, so that they will be exposed to sunlight: 4, being on the facade, the normal thing is that all the windows that are in that part of the building them

the same intensity of light is arriving, the idea of placing them on the facade and not inside, is on the one hand that when installing them inside we can have the problems that I have previously exposed and on the other that when being on the facade I am going have the real sunlight that is coming to that part of the building at that moment.

S Another advantage is that with very few sensing devices we can cover a lot of action area.

Sunlight: 4 that is reaching the sensor devices: 1.1.8 and 1.1.b, I will quantify it so that I have information that I will be able to process and use.

We will treat the light information depending on how we have configured these sensor devices: how we will see in the section Configuration of the sensor device.

Once the information is handled, it will be sent wirelessly to each of the two actuator devices: 2.2.a in one network, and of the seven actuator devices: 2.2.b in the other.

15 b.1) Configuration of the sensor device.

We will be able to wirelessly configure the working parameters of the sensor devices: 1.1.a and 1.1.b individually, that is, each sensor device is unique and as such we will be able to configure it with its own operating characteristics.

20 The operating characteristics can be changed thanks to the control device: 3.3.

Next, we will explain the parameters that we will be able to configure in

The sensor device:

b.2) Configuration of saving mode.

25 There will be several ways or levels of work in terms of energy savings that we want to have, for example: "savings +++ ~ means a lot of energy savings," + savings ~, means that we will have energy savings but less than previous.

These working modes are going to make that before the same level of sunlight that affects the sensor device, the fluorescent groups will look more or less. If we need more light in our workplace, we would put the option of "saving + ~ since in this way the fluorescent groups look more, but if we settle for that light in the work area we would set the sensor to" savings + ++ ~, then the fluorescent groups will look less, then I will explain it in a more detailed way with the example that can be seen in Figure 3.

The light affects the two sensing devices: 1.1 .8 and 1.1.b, if we assume that the same intensity of sunlight is reaching the two sensing devices at that moment, the 1.1.a has the uahorro +++ "configuration. and 1.1.b has the uahorro + "configuration, given the same configuration of the actuator devices: 2.2.a that controls G1 and 2.2.b that controls G1 * and the same configuration of the actuator device 2.2.a that controls G2 and 2.2.b that controls G2 *, the fluorescent groups G 1 and G2 will look less than G 1 * and G2 * since the latter are associated with the 1.1.b sensor device that has a lower saving, then before it sunlight, these fluorescents will look less powerful. In this example the fluorescent group G1 is at the same distance from the windows as the fluorescent group G1 *, and the fluorescent group G2 is the same distance from the windows as the fluorescent group G2 *.

This configuration can be used if we want to make a distinction between work areas that require a higher ambient light level than others.

b.3) Maintenance time setting of constant sunlight to generate a change in fluorescents.

We will also be able to configure the time that a level of sunlight has to be constant: 4 so that the new light level is reflected in the lighting: 2.h and they look more or less. For example, if I set this time to 15 seconds, if the clouds covered the sky for 20 seconds and less light reached the sensor system, the fluorescent groups would look more, but instead if the cloud covering the sun takes 10 seconds to pass It will not be reflected in the level with which the fluorescent groups look: G1, G2, etc ..., that is, the fluorescent groups will not look any longer, since the time I have set for the new level of light which is reaching the sensor device is reflected the fluorescent groups is 15 seconds.

In other words, I set the time that has to be constant in the sensor device, for example: 1.1.a at a certain level of light: 4 so that changes in the group of actuator devices can be reflected: 2.2.8. In the same way that it is done for the 1.1.8 sensor device it can be done for the 1.1.b.

e) Actuator device.

The actuator devices: 2.2.a and 2.2.b are responsible for receiving the information that arrives from the sensor devices that are associated with the same network and depending on how it is configured will act in one way or another on the different lighting.

Each actuator device can control the lighting, in the proposed example, one

or more fluorescent groups. if we have a group of fluorescents that are at the same distance from the window, we assume that all of them should illuminate the same because that area will reach the same level of sunlight, which would connect the actuator to the groups of fluorescent that were necessary.

We can also configure the actuator devices as we will see in the next section.

c.1) Configuration of the actuator device.

We will be able to wirelessly configure the working parameters of each actuator device of the system individually, that is, each actuator device of each network, that is, each of the two actuator devices 2.2.a and each of the seven actuator devices 2.2 .b of the other network is unique and as such we will be able to configure it with its own operating characteristics. Next we will see the configuration options.

c.2) Distance configuration between the sensor device and the actuator device (s) that is associated with it.

This parameter is very important, since it is the one that will make the fluorescent groups look more or less, that is, they consume more or less power depending on whether they are more or less far from the sensor device.

In the case of Figure 3 and assuming that we are working with the network. composed of the sensor device: 1.1.8 and the group of actuator devices: 2.2.8 what we are going to do is configure wirelessly and by means of a control software installed on a computer: 3.8 thanks to the radio frequency transmitter: 3.b the distance between the light sensor device and the receiving system (to which a group of fluorescents will be connected).

It is no longer necessary to place light sensors inside the offices because I know the light that is coming to the facade, that is, to the windows and I know that as I move away from them the light that is needed in the fluorescents will be greater .

For the example in Figure 3, you would configure the actuator device: 2.2.b associated that

It controls G1 * with "near zone +++" which means that the fluorescents belonging to G1 * are not going to look much (if it is not necessary, because the light that arrives is adequate to work), to the actuator device: 2.2.b which controls G2 * I configure it with "near zone ++", in this zone the fluorescent groups will look more, and so on until we reach the fluorescent group: Gr, which is controlled by another actuator device 2.2.b that would be configured as a "distant zone +++" And in this zone the associated fluorescent groups would look much more than in the G1 * zone since they are quite far from the windows.

Therefore, at a level of light that reaches the sensor device, the fluorescent groups will look differently depending on the area in which they are located, closer or further from the window.

c.3) Configuration of the time that a work area or room has to go without the presence of people for the fluorescent lights to go out.

You can set the time that an area has to spend in the absence of people for the fluorescent groups to be minimized.

It makes no sense that the fluorescents are working if there are no people working in the area of activity of the fluorescent group.

The presence sensor: 2.8 is the one that detects people. d) Work modes. There are going to be two work modes, one to make changes in the operation

of the sensor devices and actuator devices, this is the umode contror, and another one in which the entire light management system will work without the intervention of people, this is the "automatic mode". This can be done thanks to the control system: 3.3. d.1) Control mode.

10 The sensor devices and actuator devices within the energy saving system are unique, that is, they will be able to control and modify the parameters that I have mentioned in the sections Configuration of the sensor device and Configuration of the actuator device individually, this is so because each sensor device and actuator device has a unique identifier and belong to

15 a network, and no two networks are the same.

In summary parameters that can be modified:

Sensor device: • Saving mode setting.

• Maintenance time setting of constant sunlight to generate a change in fluorescents.

20 Actuator Device: • Distance configuration between sensor and actuator.

? Presence timer.

d.2) Automatic mode.

It is the way in which the system always has to work (unless we want to configure some sensor device and / or actuator device), without any person intervening, the system is autonomous and what it does is check the light level solar and

act in the proper way, as we have configured the entire system with the control mode explained in the previous section.

Claims (15)

 Claims 1. Wireless system for energy saving in lighting, which uses brightness sensors on the facades of buildings, ships or other 5 constructions characterized in that the system comprises three clearly differentiated parts: first, a sensor subsystem composed of one or more sensor devices 1.1, secondly the actuator subsystem consisting of one or more actuator devices 2.2 and finally the control device 3.3. 1. In the sensor subsystem in each of the sensor devices (1.1), there is a 10 solar light sensor (La) that is located on the facade of the building and that receives the intensity of sunlight in an instant. This sensor will change its internal physical properties giving information to the microcontroller (1.b). Microcontroller (1.b) you will have a program recorded inside. Once the information is used, the microcontroller (1.b) will send the corresponding information to the radio frequency transmitter / receiver 15 (1.c). On the other hand, the microcontroller (1.b) has a memory (1.d) connected, which will be used to record the configuration parameters that come from the control device (3.3). The radio frequency transmitter / receiver (1.c) will send the information received from the microcontroller (1.b), to the radio frequency receivers (2.c) of all actuator devices (2.2), which are associated with 20 that sensor device (1.1). The sensor device (1.1) is powered by the power supply (1.e). 11. In the actuator subsystem in each actuator device (2.2), the information is transmitted by the radio frequency transmitter / receiver (1 .c) and received by the radio frequency receiver (2.c). The information received by the radio frequency receiver (2.c), 2S sends it to the microcontroller (2.b), which processes it, and depending on this information, the microcontroller (2.b) will control the electronically adjustable electronic ballast (2.g) with more or less power, which in turn control the lighting (2.h). On the other hand, the microcontroller (2.b) of the actuator device (2.2) has a memory (2.d) connected to it, which will be used to record the configuration parameters that come from the conlrol device (3.3). The actuator device (2.2) is powered by the power supply (2.e), and the mains voltage (2.f) feeds the electronic ballast (2.g). 111. Finally, we have the control device (3.3), which in turn is composed of the computer (3.a) that controls the operating parameters of the system, so that the control information leaves the computer (3. a) and is received by the radio frequency transmitter (3.b), this information is sent to the radio frequency transmitter / receiver device (te) of the sensor device (1.1) and to the radio frequency receiver device (2.c) of the actuator device ( 2.2), the radio frequency transmitter / receiver device (1 .e) and the radio frequency receiver device (2.c) are transmitted to their respective microcontrollers (1.b) and (2.b) which record the configuration information in their respective memories (1.d) and (2.d).

2.

Wireless system for energy saving in lighting, according to claim 1, characterized in that the absence or presence of people in a device is controlled by the presence sensor (2.a) that is connected to the microcontroller (2.b) of the actuator device (2.2). work area and the lighting is acted upon accordingly.

3.

Wireless system for energy saving in lighting, according to claim 1, characterized in that the radio frequency transmitters / receivers (1.c) and radio frequency receivers (2.c) work at high frequencies in the GHz range.

Four.

Wireless system for energy saving in lighting, according to claim 1 characterized in that the radio frequency transmitters / receivers (1.c) and the radio frequency receivers (2.c) work forming transmission networks, up to 1,048,560 different networks of sensor devices (1.1) that have one or more associated actuator devices (2.2), and in which data is transmitted wirelessly at a configurable rate within the range of 1200 to 115200 bps, with values of 1200 bits / s, 2400 bits / s, 4800 bits / s, 9600 bits / s, 19.2 Kbits / s, 38.4 Kbits / s, 57.6 Kbits / s, 115.2 Kbits / s, at distances of 100 m indoors and 1500 m outdoors.

5.

Wireless system for energy saving in lighting, according to claim 1, characterized in that the computer (3.a) of the control device (3.3) configures in the sensor device (1.1) the time to be constant a level of

sunlight influencing a light sensor (l. a) so that the new level of sunlight affects the power with the lighting (2.h), and the energy saving mode with which the lighting groups G1, G2, ... G7 * And it configures in the actuator device (2.2) the distance of the sensor device 5 (1.1) to said actuator device (2.2) associated with it and on the other hand, configures the time it has to spend in a work area where there are no people. so that the lighting (2.h) is set to the minimum power. 6. Procedure for energy saving in lighting using the system of claims 1 to 5 characterized in that it consists of the following steps: 10 1. The 501 light reaches the sensor device. 2. The sensor device quantifies and processes the level of sunlight and taking into account the configuration parameters of this device such as the percentage of energy savings that will be established for each work area and the time that must be taken. constant sunlight level to make it look 1S reflected in the luminaires. sends information wirelessly to the actuator devices that are associated with it. 3. The actuator device receives the information from the sensor device and takes into account the configuration parameters of the actuator device such as the time in which a work area has to be without the presence of people 20 so that the lights and the distance of the actuator associated with a group of fluorescent lights to the windows are turned off. 4. All of this information applies to the lighting lighting more or less depending on the level of sunlight and the configuration parameters mentioned both in the sensor device and in the device 2S actuator 5. The configuration of these working parameters will be done wirelessly, by means of a computer and a radio frequency transmitter, when you want to configure any of these parameters, a control mode will be set in the system, adjustments or changes will be made, and then we will go back to a 30 automatic mode, in which the system works automatically and without needing the control system. That is, the control system serves only and exclusively to configure some parameter of the system's work mode, once configured we do not need the control system, since the whole system works autonomously.

7.

Microcontroller program (1.b) comprising the sensor device code characterized in that it executes the method described in claim 6 step 2.

8.

Microcontroller program (2.b) comprising the device code

5 actuator characterized in that it executes the method described in claim 6 step 3. 9. Computer program of the control device (3.3) comprising the code for configuring the working parameters of the sensor device and the actuator device explained in claim 6 stages 2 and 3, and makes 10 the manner explained in claim 6 step 5.