JP2012022948A - Device and method for power generation and light emission - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to efficiently notify detection results by a sensor.SOLUTION: Dye-sensitized solar cells (DSSC) 112 of a power-generating and light-emitting tile 10 generate electricity with transmitted light which transmits a cover layer 111 such as sunlight. The power obtained by power generation of the DSSCs 112 is stored in a storage section 114 arranged at a lower side of the DSSCs 112. Each LED 113 arranged at the lower side of each DSSC 112 emits light under the DSSC 112 by using the power stored in the storage section 114. A circuit 115 monitors electromotive force of the DSSCs 112, and makes the LEDs 113 emit light at the time of sensing of reduction of such electromotive force. Existence of a pedestrian (a person) is notified to the circumference with light emission of the LEDs 113. The power-generating and light-emitting tile can be applied to a power-generating and light-emitting device.

Description

  The present invention relates to a power generation / light emitting apparatus and method, and more particularly, to a power generation / light emission apparatus and method that can perform notification of a detection result by a sensor more efficiently.

  2. Description of the Related Art Conventionally, there is an electronic device that generates power using a solar power generation panel or the like and operates with the power obtained by the power generation.

  For example, a road fence that is charged with a solar cell and emits light at night has been considered (see, for example, Patent Document 1).

JP 2000-345522 A

  However, the road fence described in Patent Document 1 alerts a driver or a pedestrian to an intersection or a road, detects the presence of the pedestrian, and informs the driver or another person of the detection result. There was no notification function.

  Further, in the road fence described in Patent Document 1, the portion of the solar cell occupied most of the surface, and the light emitting portion was small. Therefore, the notification performance is extremely low, and it has been difficult to apply to various uses such as use for notification of a detection result by a sensor.

  The present invention has been made in view of such a situation, and an object of the present invention is to more efficiently notify a detection result by a sensor so that it can be applied to, for example, more various uses.

  One aspect of the present invention is obtained by photovoltaic power generation means that converts light energy into electrical energy and that transmits incident light, power storage means that stores electric power generated by the photovoltaic power generation means, and power generation by the power generation means. A detecting means for monitoring the voltage generated and detecting the voltage drop generated when the power generating means is shielded from light; and a detecting means for detecting the voltage drop by the detecting means. In this case, the power generation light emitting device includes light emitting means for emitting light.

  A small-capacity storage unit that is connected in parallel to the photovoltaic unit and stores a small-capacity electric power obtained by the power generation of the photovoltaic unit.

  The light emitting means emits light for a predetermined time and can be turned off.

  The light emitting means emits light for a predetermined time and can be gradually turned off.

  The detection means can monitor a voltage obtained by power generation of the plurality of photovoltaic power generation means, and can detect a drop in the voltage for each photovoltaic power generation means.

  Control means for controlling light emission by each of the plurality of light emitting means, and for causing the light emitting means at a position different from the photovoltaic power generation means where the voltage drop is detected by the detecting means to further emit light.

  The apparatus further comprises storage means for storing a history of detection of the voltage drop by the detection means, and the control means includes the position of the photovoltaic power generation means where the voltage drop is detected by the detection means, and the storage. Based on the position of the photovoltaic power generation means that has been detected by the detection means in the past, the position where the effect of the voltage is detected in the future is predicted, and the predicted position The light emitting means can emit light.

  The terminals of the photovoltaic means can be formed in the shape of a fastener, and can be connected in series or in parallel with other photovoltaic means using a slider.

  The terminals of the photovoltaic means are formed in a spherical irregular shape, and can be connected in series or in parallel with other photovoltaic means by fitting.

  Communication means capable of communicating with other devices can be further provided.

  Another aspect of the present invention is a power generation / light emission method of a power generation / light emission device, wherein the photovoltaic power generation means converts light energy into electrical energy, transmits incident light, and the power storage means converts the generated power. The power is stored, the detection means monitors the voltage obtained by power generation, detects the voltage drop generated by being shielded from light, and the light emitting means is provided below the photovoltaic power generation means, and the voltage drop This is a power-generating light-emitting method that emits light when detected.

  In one aspect of the present invention, light energy is converted into electrical energy, incident light is transmitted, generated power is stored, a voltage obtained by power generation is monitored, and is generated by being shielded from light. When a voltage drop is detected and the voltage drop is detected, light is emitted below the photovoltaic means.

  According to the present invention, power generation and light emission can be performed. In particular, the notification of the detection result by the sensor can be performed more efficiently.

It is sectional drawing of the electric power generation light emitting tile using a silicon-type solar cell. It is a top view of the power generation light emitting tile using a silicon-type solar cell. It is sectional drawing of the electric power generation light emitting tile to which this invention is applied. It is a top view of the power generation light emitting tile to which the present invention is applied. It is sectional drawing which shows the main structural examples of a dye-sensitized solar cell. It is a block diagram which shows the main structural examples of the power generation light emission tile to which this invention is applied. It is a figure explaining a capacitor | condenser. It is a figure explaining the usage example of the power generation light emission tile to which this invention is applied. It is a figure explaining the example of light emission control. It is a flowchart explaining the example of the flow of a pedestrian notification process. It is a figure explaining the usage example of the power generation light emission tile to which this invention is applied. It is a figure explaining the usage example of the power generation light emission tile to which this invention is applied. It is a block diagram which shows the structural example of the power generation light emission tile unit to which this invention is applied. It is a block diagram which shows the structural example of the power generation light emission system to which this invention is applied. It is a flowchart explaining the example of the flow of a pedestrian notification process. It is a flowchart explaining the example of the flow of a pedestrian prediction notification process. It is a block diagram which shows the other structural example of the power generation light emitting tile to which this invention is applied. It is a figure which shows the other structural example of the power generation light emission tile unit to which this invention is applied. It is a figure which shows the example of the connection method of a power generation light emission tile unit. It is a figure which shows the example of the connection method of a power generation light emission tile unit. It is a figure which shows the example of the serial connection of a power generation light emission tile unit. It is a figure which shows the example of the parallel connection of a power generation light emission tile unit. It is a figure which shows the example of the series parallel combination connection of a power generation light emission tile unit. It is a block diagram which shows the other structural example of the electric power generation light emission system to which this invention is applied. It is a block diagram which shows the main structural examples of a power generation light emission tile unit. It is a block diagram which shows the main structural examples of a communication device. It is a block diagram which shows the main structural examples of a movement route guidance server. It is a figure explaining the example of the mode of movement route guidance. It is a flowchart explaining the example of the flow of a movement route guidance process.

Hereinafter, modes for carrying out the invention (hereinafter referred to as embodiments) will be described. The description will be given in the following order.
1. First embodiment (power generation light emitting tile)
2. Second embodiment (power generation light emitting system)
3. Third embodiment (power generation light emitting system)

<1. First Embodiment>
[Power-generating light-emitting tiles using silicon-based solar cells]
FIG. 1 is a cross-sectional view for explaining a configuration of a power generation light emitting tile using a silicon-based solar cell. The power generation light emitting tile 1 shown in FIG. 1 is installed on a road or the like, for example, and when a pedestrian (person) is located on the power generation light emission tile 1, it emits light and notifies the surrounding people and vehicles that there are people. It is a device to do.

  As shown in FIG. 1, the power generation light emitting tile 1 is provided with so-called silicon-based solar cells (SC12-1 to SC12-3) using amorphous silicon or the like under a transparent cover layer 11 on the upper surface. ing. In the following, SC12-1 to SC12-3 are simply referred to as SC12 when it is not necessary to distinguish them from each other. The SC 12 generates power using transmitted light that passes through the cover layer 11 such as sunlight. That is, the SC 12 converts light transmitted through the cover layer 11 into electric energy (electric power). The electric power obtained by the power generation of the SC 12 is stored in the power storage unit 14 provided on the lower side of the SC 12.

  Under the cover layer 11, LEDs (Light Emitting Diodes) 13-1 to 13-4 are provided in parallel with the SCs 12. Hereinafter, the LEDs 13-1 to 13-4 are simply referred to as LEDs 13 when there is no need to distinguish them from each other. The LED 13 emits light using the electric power stored in the power storage unit 14. The output light output from the LED 13 passes through the cover layer 11 and is emitted around the power generation light emitting tile 1. That is, the LED 13 operates as a notification function to the outside of the power generation light emitting tile 1.

  Under the power storage unit 14, an electronic circuit (circuit 15) for controlling the operation of the power generation light emitting tile 1 is provided.

  When the foot of a pedestrian (person) is positioned on the cover layer 11 of the power generation light emitting tile 1, it becomes a shadow of the foot and the amount of light reaching the SC 12 is reduced. Therefore, the electromotive force in the power generation of SC12 is reduced. The circuit 15 monitors the electromotive force of the SC 12, and when it detects a decrease in the electromotive force, the circuit 15 causes the LED 13 to emit light. When the LED 13 emits light, the presence of a pedestrian (person) is notified to the surroundings.

  Thus, the power generation light emitting tile 1 can notify the detection result by the sensor without the need for external power supply. Therefore, the power generation light emitting tile 1 can notify the presence of a pedestrian at a lower cost.

  FIG. 2 is a top view of the power generation light emitting tile 1 as viewed from above. As shown in FIG. 2, the SC 12-1 to SC 12-3 and the LEDs 13-1 to 13-4 are arranged side by side on the power generation light emitting tile 1.

  Thus, compared with the road fence described in Patent Document 1, the power generation light-emitting tile 1 can have a larger light-emitting portion (LED 13) and can improve notification performance. That is, since the power generation light emitting tile 1 can perform notification more efficiently, it can be applied to more various uses.

[Power generation light emitting tile using DSSC]
FIG. 3 is a cross-sectional view for explaining the configuration of the power generation light emitting tile to which the present invention is applied. The power generation light emitting tile 100 shown in FIG. 3 is the same device as the power generation light emission tile 1 of FIG. 1. For example, the power generation light emission tile 100 is installed on a road or the like and emits light when a pedestrian (person) is positioned on the power generation light emission tile 100. To notify people and vehicles around you

  As shown in FIG. 3, the power generation light emitting tile 100 is provided with dye-sensitized solar cells (DSSC (Dye Sensitized Solar Cell) 112-1 to DSSC 112-3) under a transparent cover layer 111 on the upper surface. ing. In the following, DSSC 12-1 to DSSC 12-3 will be simply referred to as DSSC 112 when there is no need to distinguish them from each other.

  The DSSC 112 generates power using transmitted light that passes through the cover layer 111, such as sunlight. That is, the DSSC 112 converts the light transmitted through the cover layer 111 into electric energy (electric power). The electric power obtained by the power generation of the DSSC 12 is stored in the power storage unit 114 provided below the DSSC 112.

  DSSC 112 is a solar cell that has a structure in which an electrolyte is interposed between a titania porous electrode carrying a sensitizing dye and a counter electrode, and obtains a photovoltaic power using an organic dye, and transmits light. be able to. Therefore, as shown in FIG. 3, the LEDs 113-1 to 113-3 are provided below the DSSC 112-1 to DSSC 112-3. Hereinafter, the LEDs 113 are simply referred to as LEDs 113 when there is no need to distinguish them from each other.

  The LED 113 emits light under the DSSC 112 using the power stored in the power storage unit 114. The output light output from the LED 113 passes through the DSSC 112 and the cover layer 111 and is emitted around the power generation light emitting tile 100. That is, the LED 113 operates as a notification function to the outside of the power generation light emitting tile 100.

  Under the power storage unit 114, an electronic circuit (circuit 115) for controlling the operation of the power generation light emitting tile 100 and the like is provided.

  When the foot of a pedestrian (person) is positioned on the cover layer 111 of the power generation light emitting tile 100, it becomes a shadow of the foot, and the amount of light reaching the DSSC 112 is reduced. Therefore, the electromotive force in the DSSC 112 power generation is reduced. The circuit 115 monitors the electromotive force of the DSSC 112 and causes the LED 113 to emit light when a decrease in the electromotive force is detected. When the LED 113 emits light, the presence of a pedestrian (person) is notified to the surroundings.

  The power generation light emitting tile 100 is provided with a pressure-sensitive sensor 116 that detects pressure applied on the cover layer 111. That is, the pressure sensor 116 senses that the foot of the pedestrian (person) has stepped on the cover layer 111. When the foot of the pedestrian (person) is detected on the cover layer 111 by the pressure sensor 116, the circuit 115 causes the LED 113 to emit light and notifies the surroundings of the presence of the pedestrian (person).

  For example, the detection by the DSSC 112 becomes difficult in a dark environment such as at night. In such a case, the circuit 115 detects the pedestrian (person) by the pressure sensor 116. By doing in this way, the power generation light emitting tile 100 can detect and notify the presence of a pedestrian (person) even at night. Of course, the detection by the DSSC 112 and the detection by the pressure sensor 116 may be used in combination.

  In addition, on the upper surface of the cover layer 111 of the power generation light emitting tile 100, the anti-slip 117-1 to the anti-slip are provided so that a pedestrian (person) does not slip on the upper surface of the cover layer 111 at a position that does not prevent the light emission of the LED 113. 117-4 is provided. In the following description, when it is not necessary to distinguish between the slip stoppers 117-1 to 117-4, they are simply referred to as the slip stoppers 117.

  As described above, the power generation light emitting tile 100 can notify the detection result by the sensor without requiring the external power supply. Therefore, the power generation light emitting tile 100 can notify the presence of a pedestrian at a lower cost.

  FIG. 4 is a top view of the power generation light emitting tile 100 as seen from above. As described above, in the case of the power generation light emitting tile 100, the LEDs 113 are all provided under the DSSC 112. That is, in FIG. 4, the DSSC 112 part is the light emitting part.

  Thus, the power generation light emitting tile 100 can have a larger light emitting section (LED 13) than the power generation light emitting tile 1, and can improve the notification performance. That is, since the power generation light emitting tile 100 can perform notification more efficiently, it can be applied to various uses.

[DSSC]
FIG. 5 is a cross-sectional view for explaining a configuration example of the DSSC 112 of FIG. As shown in FIG. 5, the DSSC 112 includes a TiO2 electrode 121, a platinum electrode (Pt) 122 that is a conductive transparent electrode of a semiconductor electrode, and a redox species between an upper glass substrate 111 and a lower glass substrate 123. Electrolytic layers including ionic liquids and organic solvents containing

  The TiO2 electrode 121 is basically a highly transparent electrode using TiO2 particles of about 20-30 nm. For example, particles of about 200-400 nm are used to diffuse or block light. For example, a highly transparent electrode forms 20-30 nm particles in about 4-8 um. In addition, for example, in order to impart diffusibility so that the panel itself shines (forms a structure like ground glass), 20-30 nm particles: 200-400 nm particles = 8: 2 is about 4-8 μm. Form. Further, for example, when light is blocked, 200-400 nm particles are formed in 4 μm or more.

  As the counter electrode, platinum is formed on the island and on the FTO (Pt122). Examples of the method include dry film formation such as sputtering and vapor deposition, and wet film formation using a platinum precursor solution. For example, an ethanol solution of chloroplatinic acid (H2 PtCl6: EtOH, 0.1 wt%) is sprayed on the FTO film by 30 mL spray, and then fired at a temperature of 450 ° C. for 30 minutes in an electric furnace, thereby firing the platinum fine particles. Conclude. The generated particles have a size of several nanometers to several tens of nanometers.

  As described above, the DSSC 112 can transmit sunlight or light emitted from the LED with an arbitrary transmittance.

[Configuration of power generation light emitting tiles]
FIG. 6 is a block diagram showing a main electrical configuration example of the power generation light emitting tile 100 to which the present invention is applied.

  In the example of FIG. 6, the power generation light emitting tile 100 includes four DSSCs 112 (DSSC 112-1 to DSSC 112-4) connected in series. The number of connections of the DSSC 112 is arbitrary. Further, capacitors 131-1 to 131-4 are connected in parallel to DSSC 112-1 to DSSC 112-4, respectively. In other words, these capacitors 131-1 to 131-4 are also connected in series with each other. Hereinafter, when it is not necessary to distinguish between the capacitors 131-1 to 131-4, they are simply referred to as capacitors 131. The number of capacitors 131 is arbitrary.

  At both ends of the DSSC 112 connected in series with each other, an AD conversion unit 132 that converts the voltage between the two ends into digital data and a power storage unit 114 that stores the power generated by the DSSC 112 by power generation are provided.

  The power storage unit 114 is configured by an arbitrary secondary battery or capacitor. The electric power stored in the power storage unit 114 is used for the operation of each unit.

  The power generation / light emitting tile 100 further includes a pressure-sensitive sensor 116, a control unit 140, and an output unit 142.

  As described above, the pressure-sensitive sensor 116 detects the pressure applied on the power generation / light emitting tile 100 (cover layer 111), thereby allowing a pedestrian (person) foot on the power generation / light emission tile 100 (cover layer 111). Is detected. Note that a vibration sensor may be used instead of the pressure sensor 111.

  The control unit 140 controls each unit of the power generation light emitting tile 100. The output unit 142 includes the LED 113 shown in FIG. The output unit 142 may include a speaker that outputs voice information such as a voice message or music.

  The power generation / light emitting tile 100 may further include an input unit 141 and a storage unit 143.

  The input unit 141 includes, for example, an arbitrary input device such as a keyboard, a mouse, a button, or a touch panel, an input terminal, and the like. The input unit 141 receives information input from the outside such as a user or another device, and controls the input information. 140.

  The storage unit 143 includes, for example, an SSD (Solid State Drive) such as a flash memory or a hard disk, and stores information supplied from the control unit 140 or supplies stored information to the control unit 140. .

  Furthermore, a drive 145 is appropriately connected to the power generation light emitting tile 100. For example, a removable medium 146 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately attached to the drive 145. For example, the drive 145 is controlled by the control unit 140, reads a computer program from the removable medium 146, and installs it in the storage unit 143.

[Capacitor]
Next, the capacitor 131 in FIG. 6 will be described. The capacitor 131 in FIG. 6 is for performing sensitivity adjustment when the DSSC 112 is used as a sensor.

  A part of the power generated by the DSSC 112 can be stored by connecting the capacitor 131 in parallel with the DSSC 112. When the DSSC 112 is shielded from light by a pedestrian (person) foot or the like, the generated voltage of the DSSC 112 decreases. At this time, the electric power stored in the capacitor 131 is discharged, so that the voltage drop can be extended over time.

  For example, as shown in FIG. 7A, it is assumed that a voltage drop after being shielded from light in the case of only DSSC 112 becomes a curve 151. By connecting a capacitor 131 in parallel to the DSSC 112, the voltage drop after being shielded from light becomes a curve 152. That is, the voltage drop is delayed by the delay time τ.

  The delay time τ [sec] is expressed by the following equation (1), where C is the capacitance [F] of the capacitor 131 and R is the resistance value of the wiring connected to the DSSC 112 and the capacitor 131. Can be represented.

  τ = CR (1)

  When the voltage drop is delayed in this way, the detection sensitivity of the voltage drop by the control unit 140 becomes dull. That is, the sensitivity of the DSSC 112 as a sensor is adjusted by the capacitance of the capacitor 131 and the like.

  For example, when the DSSC 112 is temporarily shielded from light by dead leaves or the like, the power generation voltage of the DSSC 112 is temporarily reduced, but the power stored in the capacitor 131 is discharged, so that erroneous detection due to a temporary drop in voltage is detected. Can be prevented.

  If the capacitor 131 is not connected, for example, as shown in FIG. 7B, erroneous detection occurs in the relational expression of light shielding time τdark> detection time τdet.

  In order to prevent this, a capacitor is added so that the light shielding time τdark <the detection time τdet + the delay time τ.

[Application Example 1]
The power generation light emitting tile 100 as described above is spread for example on a pedestrian road 161 as shown in FIG. 8, and is used for safety to notify the presence of pedestrians (people) to surrounding people, vehicle drivers, and the like. Can be used as a display machine.

  When the pedestrian 162 walks on the pedestrian road 161 on which the power generation light emitting tiles 100 are spread, the LED 113 of the power generation light emission tile 100 that the pedestrian 162 steps on as described above emits light. A person around the pedestrian 162 or a driver can more easily grasp the presence of the pedestrian 162 by this light.

  In particular, when the pedestrian 162 is difficult to see, such as at night or in the evening, the light from the power-generating light-emitting tile 100 is easier to see and more effective.

  In particular, it is more useful in places where there is a large amount of traffic and where the sidewalk is narrow, because it is dangerous if the presence of the pedestrian 162 cannot be grasped.

  Since the DSSC 112 can be formed in various colors, for example, as a sidewalk, the DSSC 112 can have a color tone that does not cause a sense of incongruity. Further, by using the DSSC 112, the manufacturing cost of the power generation light emitting tile 100 can be reduced. Moreover, since the power generation light emitting tile 100 emits light only when it is stepped on by a pedestrian 162, power consumption can be reduced as compared with a road fence that always emits light.

  It is desirable to determine the tile size according to the pedestrian's stride and the construction cost. For example, about 70 cm square or less may be used for adult males, and about 60 cm square or less may be used for adult females.

  In general, a panel size of 30 cm square or less is preferable for children (when considering going out alone, the subject is about the first grade of elementary school, the average height is 110 cm, and the average stride is about 36-50 cm). On the other hand, if a very small tile is used, the cost increases because the required number of tiles increases. For normal sidewalks, 30cm square tiles are desirable.

  In addition, when the pedestrian 162 walks by lengthening the light emission time of the LED 113 when stepped on by the pedestrian 162, for example, as shown in FIG. The presence of the pedestrian 162 can be notified more strongly (the presence of the pedestrian 162 can be easily recognized).

  In FIG. 9A, each square indicates the power generation light emitting tile 100 spread on the pedestrian road 161, and the squares 171 to 176 indicate the power generation light emission tile 100 in a state where the pedestrian 162 steps on and emits light. ing.

  This light emission time is defined by the length of the locus to be left. The length of the trajectory is about 1-10 m, but if it is too short, the visibility from others will deteriorate. Moreover, when too long, it will be in the state always light-emitted, and the alertness of the presence of a pedestrian will become weak. Preferably, it is about 3-5 m. For example, a road marking indicating a maximum speed or a pedestrian crossing has a length of 5 m, and is considered to have a high visibility from a car.

  The average walking speed for Japanese is said to be 4 km / h, 1.1 m / s, so it may be lit for about 5 seconds. Moreover, in order to make the pedestrian's traveling direction easy to understand, for example, as shown in FIG. 9B, the light emission may be attenuated with time.

  In FIG. 9B, each square indicates the power generation / light emitting tile 100 laid on the pedestrian road 161, and the squares 181 to 188 indicate that the power generation / light emission tile 100 lit by the pedestrian 162 is gradually turned off. It shows how to do. When the pedestrian 162 is walking, the power generation light emitting tile 100 far from the current position of the pedestrian 162 becomes darker and finally turns off.

  At this time, for example, the power generation / light emitting tile 100 may be attenuated over a predetermined time after being turned on, or may be gradually attenuated and extinguished after a predetermined time has elapsed after turning on.

[Pedestrian notification process flow]
An example of the flow of pedestrian notification processing executed by the control unit 140 in order to notify such a pedestrian 162 will be described with reference to the flowchart of FIG.

  When the pedestrian notification process is started, the control unit 140 acquires sensor outputs such as the voltage of the DSSC 112 and the output of the pressure sensor 116 in step S101. In step S102, the control unit 140 determines whether or not the foot of the pedestrian 162 has been detected (whether or not the pedestrian 162 has stepped on) based on the acquired sensor output. When it is determined that the foot has been detected, the control unit 140 proceeds with the process to step S103.

  In step S103, the control unit 140 controls the output unit 142 to cause the LED 113 to emit light for a predetermined time. After the predetermined time has elapsed, in step S104, the control unit 140 controls the output unit 142 to gradually turn off the LED 113, and the process proceeds to step S105.

  In Step S102, when it is determined that the foot is not detected (not stepped on), the control unit 140 advances the process to Step S105. In step S105, the control unit 140 determines whether to end the pedestrian notification process. If it is determined not to end the process, the control unit 140 returns the process to step S101 and repeats the subsequent processes.

  Moreover, when it determines with complete | finishing a pedestrian notification process in step S105, the control part 140 complete | finishes a pedestrian notification process.

  By doing as described above, the power generation light emitting tile 100 can notify not only the presence of the pedestrian 162 but also the traveling direction of the pedestrian 162 based on the light emission amount of the LED 113.

[Application 2]
In a similar manner, for example, as shown in FIG. 11, the power generation light emitting tile 100 can be used as a security device. In the example of FIG. 11, the power generation light emitting tile 100 is installed as a stepping stone 191 or a doorstep stone 192 from the gate 190 on a private land to the house 194.

  When a visitor steps on the stepping stone 191 or the entrance paving stone 192 in order to go from the gate 190 to the entrance of the house 194, they (the power generation light emitting tile 100) emit light as described above. By this light emission, the resident of the house 194 can more easily grasp the presence of visitors or intruders on private land.

  As in the case of the pedestrian road described above, by increasing the light emission time of the LED 113, visitors or intruders on private land can be made more conspicuous.

[Application Example 3]
In a similar manner, for example, the power-generating light emitting tile 100 can be used as a device that enhances entertainment. For example, as shown in FIG. 12A, the power generation light emitting tile 100 is spread on the stairs of a pedestrian bridge 195, and when a pedestrian steps on, the LED 113 of the output unit 142 emits light and sound is output from the speaker of the output unit 142. It may be.

  For example, as shown in FIG. 12B, sounds of different pitches may be output from the power generation light emitting tiles 100 of each step of the pedestrian bridge 195, and each step may be a piano keyboard.

  In this case, since the light emission of the power generation light emitting tile 100 is used as an indication of which keyboard the pedestrian is stepping on (whether it is ringing), it is desirable to turn off the light after a light emission.

  Further, for example, as shown in FIG. 12C, the time from when the power generation light emitting tile 100 is turned on to when it is turned off is increased so as to indicate how far the pedestrian has climbed (or got down). Good.

  By laying the power generation light emitting tiles 100 in this way, the pedestrian passage (or stairs or the like) can be provided with entertainment by sound, light, or the like. In other words, this can attract the interest of pedestrians and make them want to walk in the part where the power generation light emitting tiles 100 are spread. Therefore, it is possible to implicitly guide the pedestrian to the route by spreading the power generation light emitting tile 100 on the route that the user wants to walk and thus providing entertainment. For example, a pedestrian who wants to cross the roadway can be prompted to use the pedestrian bridge 195.

<2. Second Embodiment>
[Power generation light emitting tile unit]
In the power generation light emitting tile as described above, there may be a plurality of DSSCs or LEDs controlled by one control unit, or they can be operated independently of each other.

  For example, a power generation / light emitting tile unit may be formed using the DSSC 112 and the LED 113, and a single control unit may control individual detection and light emission of a plurality of such power generation / light emission tile units.

  A power generation light emitting tile unit 200 shown in FIG. 13 has a DSSC 112, an LED 113, and a power storage unit 114 one by one, and further includes a control switch 201 and a resistor 202. A power storage unit 114 that stores the power generated in the DSSC 112 is connected to the DSSC 112 in parallel. Further, a control switch 201, a resistor 202, and an LED 203 are connected in series between the positive and negative terminals of the DSSC 112.

  The control switch 201 is controlled by a control unit outside the power generation / light emitting tile unit 200 to control light emission (lighting and extinguishing) of the LED 113 that is a light emitting element. The resistor 202 is for limiting the current flowing through each part.

  For example, while the DSSC 112 is sufficiently generating power, the control switch 201 is released, and the electric power obtained in the DSSC 112 is stored in the power storage unit 114. For example, when it becomes a shadow with a human foot or the like and the voltage of the DSSC 112 drops, the control switch 201 is short-circuited, the power of the power storage unit 114 is supplied to the LED 113, and the LED 113 emits light (lights up).

  As in the case of the power generation light emitting tile 100 described above, other sensors for detecting a pedestrian's foot, such as a pressure sensor 116 and a vibration sensor, may be provided.

  A power generation / light emission system 210 shown in FIG. 14 is a system for controlling a plurality of such power generation / light emission tile units 200.

  The power generation / light emission system 210 shown in FIG. 14 includes four power generation / light emission tile units 200 (power generation / light emission tile units 200-1 to 200-4). The power generation / light emitting tile units 200-1 to 200-4 are controlled by the control unit 220.

  For example, the power generation light emitting tile unit 200-1 DSSC 112-1, the power generation light emitting tile unit 200-2 DSSC 112-2, the power generation light emitting tile unit 200-3 DSSC 112-3 power generation voltage, and the power generation light emitting tile unit 200 -4 DSSC 112-4 is monitored by the control unit 220.

  Further, the control switch 201-1 of the power generation / light emitting tile unit 200-1, the control switch 201-2 of the power generation / light emission tile unit 200-2, the control switch 201-3 of the power generation / light emission tile unit 200-3, and the power generation / light emission tile unit The short circuit / release of the control switch 201-4 of 200-4 is controlled by the control unit 220, respectively.

  The control unit 220 can monitor the power generation voltage of each DSSC 112 and cause each LED 113 to emit light freely.

  The power generation / light emission system 210 appropriately includes an input unit 221, an output unit 222, and a storage unit 223.

  The input unit 221 includes, for example, an arbitrary input device such as a keyboard, a mouse, a button, or a touch panel, an input terminal, and the like. The input unit 221 receives information input from the outside such as a user or another device, and controls the input information. 220.

  The output unit 222 includes a display such as a CRT (Cathode Ray Tube) display, an LCD (Liquid Crystal Display), a speaker, or an output terminal, and provides information supplied from the control unit 220 to the user as an image or sound. Or output it to another device as a predetermined signal.

  The storage unit 223 includes, for example, an SSD (Solid State Drive) such as a flash memory or a hard disk, and stores information supplied from the control unit 220 or supplies stored information to the control unit 220. .

  Furthermore, a drive 225 is appropriately connected to the power generation light emitting system 210. For example, a removable medium 226 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately attached to the drive 225. For example, the drive 225 is controlled by the control unit 220, reads a computer program from the removable medium 226, and installs it in the storage unit 223.

  For the DSSC 112 in which the voltage drop is detected (DSSC 112 in which the foot or the like has been detected), the control unit 220 performs arbitrary LED 113 (the LED 113 of the power generation / light emitting tile unit 200 other than the power generation / light emitting tile unit 200 in the DSSC 112 in which the foot or the like has been detected). Can be made to emit light.

  For example, the LED 113 of the power generation / light emitting tile unit 200 that is different from the power generation / light emission tile unit 200 stepped on by a pedestrian (person) can be turned on.

[Pedestrian notification process flow]
An example of the flow of pedestrian notification processing in that case will be described with reference to the flowchart of FIG.

  When the pedestrian notification process is started, the control unit 220 acquires sensor output such as the voltage of each DSSC 112 in step S201. In step S202, the control unit 220 determines whether or not a pedestrian (person) foot has been detected (whether or not the pedestrian has stepped on) based on the acquired sensor output. If it is determined that the foot has been detected, the control unit 220 advances the process to step S203.

  In step S <b> 203, the control unit 220 causes the LED 113 at a position (power generation / light emitting tile unit 200) corresponding to the detection position, which is different from the foot detection position (power generation / light emission tile unit 200 detecting the foot), to emit light for a predetermined time. After the predetermined time has elapsed, in step S204, the control unit 220 gradually turns off the LED 113, and the process proceeds to step S205.

  If it is determined in step S202 that the foot is not detected (not stepped on), the control unit 220 advances the process to step S205. In step S205, the control unit 220 determines whether or not to end the pedestrian notification process. If it is determined not to end the process, the control unit 220 returns the process to step S201 and repeats the subsequent processes.

  Moreover, when it determines with complete | finishing a pedestrian notification process in step S205, the control part 220 complete | finishes a pedestrian notification process.

  As described above, the control unit 220 of the power generation / light emission system 210 can cause, for example, the power generation / light emission tile units 200 around the power generation / light emission tile unit 200 being stepped on by a pedestrian to emit light. By doing so, it is possible to emit light around the pedestrian's feet, which is stronger than the pedestrian's feet, rather than to light up the parts that are stepped on and hidden by their feet. The surroundings can be notified (the surrounding person can easily recognize the pedestrian).

  In addition, the control unit 220 predicts the pedestrian's traveling direction from the current detection result and the past detection result of the pedestrian, and turns on the LED of the power generation light emitting tile unit 200 that is predicted to be stepped on by the pedestrian in the future. You may make it make it.

  An example of the flow of pedestrian prediction notification processing in that case will be described with reference to the flowchart of FIG.

  When the pedestrian prediction notification process is started, the control unit 220 acquires sensor output such as the voltage of each DSSC 112 in step S221. In step S222, the control unit 220 determines whether or not a pedestrian (person) foot has been detected (whether or not the pedestrian has stepped on) based on the acquired sensor output. If it is determined that the foot has been detected, the control unit 220 advances the process to step S223.

  In step S223, the control unit 220, based on the history information of the position detected in the past (the power generation light emitting tile unit 200 stepped on) and the position detected in the past held in the storage unit 223 or the like, A future detection position (for example, the next power generation light emitting tile unit 200 to be stepped on) is predicted.

  For example, if the past detection position and the current detection position are connected by a straight line, the future detection position is the same as the current detection position on the straight line in the direction opposite to the past detection position. It can be predicted that the position is far from the current detection position by the distance from the past detection position.

  In step S224, the control unit 220 causes the LED 113 at the predicted future detection position to emit light for a predetermined time.

  In step S225, the control part 220 memorize | stores the position detected this time as a log | history in the memory | storage part 223, for example, and advances a process to step S226.

  If it is determined in step S222 that the foot is not detected (not stepped on), the control unit 220 advances the process to step S226. In step S226, the control unit 220 determines whether or not to end the pedestrian prediction notification process. If it is determined not to end the process, the control unit 220 returns the process to step S221 and repeats the subsequent processes.

  Moreover, when it determines with complete | finishing a pedestrian prediction notification process in step S226, the control part 220 complete | finishes a pedestrian prediction notification process.

[Shading judgment]
By doing in the above way, the control part 220 of the power generation light emission system 210 can light the power generation light emission tile unit 200 that a pedestrian is likely to step on before the pedestrian steps on, for example. In this way, for example, entertainment can be improved or guidance display can be performed.

  In the above description, the control unit 220 has been described so as to control each power generation / light emitting tile unit 200 individually. However, the present invention is not limited to this. For example, as illustrated in FIG. You may make it control in the state connected mutually in series.

  In this case, the control unit 220 monitors the total voltage of the DSSCs 112 connected in series, that is, the voltage at both ends, that is, the voltage generated by each DSSC 112.

  For example, as shown in FIG. 17B, when a pedestrian's foot 221 gets on the power generation light emitting tile unit 200, the DSSC 112 is shielded by the foot 221 and the power generation voltage by the DSSC 112 drops.

  As shown by current-voltage characteristic (I-V characteristic) curves 231 to 235 shown in FIG. 17C, the total value of the voltages varies depending on the number (or area) of the DSSCs 112 that are shaded. For example, if the IV characteristic when four DSSCs 112 are generating power is the curve 231, the IV characteristic is the curve 232, the curve 233, the curve 234, and the curve 235 each time the shielded DSSC 112 increases by one. To change.

  Therefore, by monitoring the voltage drop amount, the control unit 220 can determine how many DSSCs 112 are shielded from light. The control unit 220 may determine whether or not the light shield is a foot depending on the size, and may cause the LED 113 to emit light only when it is determined to be a foot.

[Method for connecting power generation light emitting tile units]
A method of connecting a plurality of the above-mentioned power generation light emitting tiles will be described.

  For example, as shown in FIG. 18, two sides of a positive electrode (+) and a negative electrode (−) are provided on four sides of a square or rectangular power generation light emitting tile unit 250 so as to face each other.

  In the case of the example of FIG. 18, the positive electrode 251 and the negative electrode 253 are provided on the sides facing each other, and the positive electrode 252 and the negative electrode 254 are provided on the sides facing each other. It is done.

  In the power generation light emitting tile unit 250 having such a structure, each electrode has a fastener engagement shape as shown in FIG. 19A. The engagement tooth 261 of the fastener 260 shown in FIG. 19A is an electrode (positive electrode or negative electrode) of the power generation light emitting tile unit 250-1, and the engagement tooth 262 is an electrode (positive electrode or negative electrode) of the generation light emitting tile unit 250-2. is there. By doing in this way, as FIG. 19A shows, the power generation light emission tile unit 250-1 and the power generation light emission tile unit 250-2 can be easily connected by the slider 263. FIG.

  In this case, the power generation light emitting tile unit 250 can be connected in series (positive electrode and negative electrode), or can be connected in parallel (positive electrodes or negative electrodes).

  For example, as shown in FIG. 19B, the power generation light emitting tile units 250-1 to 250-4 can be connected in a matrix. In the case of this example, the power generation light emitting tile unit 250-1 and the power generation light emission tile unit 250-2, and the power generation light emission tile unit 250-3 and the power generation light emission tile unit 250-4 are connected in series. -1 and the power generation light emitting tile unit 250-3, and the power generation light emission tile unit 250-2 and the power generation light emission tile unit 250-4 are connected in parallel.

  In this case, the DSSC 112-1 of the power generation light emitting tile unit 250-1, the DSSC 112-2 of the power generation light emission tile unit 250-2, the DSSC 112-3 of the power generation light emission tile unit 250-3, and the DSSC 112- of the power generation light emission tile unit 250-4. 19, DSSC 112-1 and DSSC 112-2, and DSSC 112-3 and DSSC 112-4 are connected in series, as shown in FIG. 19C, DSSC 112-1 and DSSC 112-3, and DSSC 112-2 and DSSC 112 -4 are connected in parallel.

  Thus, the user can easily connect the plurality of power generation light emitting tile units 250 (DSSC 112) easily by making the terminals into a fastener shape.

  In addition, the shape of the positive / negative electrode of the power generation light emission tile unit 250 is arbitrary, and does not need to be the fastener 260 shape mentioned above. For example, as shown in FIG. 20A, it may have a spherical uneven shape.

  In the example of FIG. 20A, the positive electrode terminal 271 is formed in a spherical convex shape, and the negative electrode terminal 272 is formed in a spherical concave shape.

  As shown in FIG. 20B, when the positive electrode terminal 271 and the negative electrode terminal 272 are pressed against each other as shown by the arrow 281 and the arrow 282, the spherical uneven portions are fitted, and the power generation light emitting tile unit 250 is connected. The

  In this state, the positive terminal 271 and the negative terminal 272 can be moved as indicated by arrows 283 and 284. Thereby, the power generation light emitting tile unit 250 can be connected not only in a planar manner but also in a three-dimensional manner.

  When the positive terminal 271 and the negative terminal 272 are pulled away from each other as shown by arrows 285 and 286 from the state of being fitted as shown in FIG. 20B, as shown in FIG. 20A. The positive electrode terminal 271 and the negative electrode terminal 272 that have been fitted are separated, and the connection between the power generation light emitting tile units 250 is released.

  Moreover, as FIG. 20C shows, the negative electrodes can be connected by using the negative electrode parallel connection member 291. Further, by using the positive electrode parallel connection member 292, the positive electrodes can be connected to each other.

[State of connection]
An example of a state in which the power generation light emitting tile units 250 are connected in series is shown in FIG. In FIG. 21A, the negative electrode terminal 272 of the power generation light emitting tile unit 250-1 and the positive electrode terminal 271 of the power generation light emission tile unit 250-2 are connected in series with each other. In this case, the negative terminal 272 of the power generation / light emitting tile unit 250-1 and the positive terminal 271 of the power generation / light emitting tile unit 250-2 are fitted as shown in FIG. 20A.

  Note that external terminals (external terminal 293-1 and external terminal 293-2) for connecting to other external devices may be connected to the electrodes at both ends of the series connection.

  In this state, as shown in FIG. 21B, the DSSC 112-1 of the power generation light emitting tile unit 250-1 and the DSSC 112-2 of the power generation light emission tile unit 250-2 are connected in series.

  Moreover, the example of a mode that the power generation light emission tile unit 250 is connected in parallel is shown in FIG. In FIG. 22A, the negative electrode terminal 272 of the power generation light emitting tile unit 250-1 and the negative electrode terminal 272 of the power generation light emitting tile unit 250-2 are connected in parallel to each other using the negative electrode parallel connection member 291. .

  In this case, the negative electrode terminal 272 of the power generation / light emitting tile unit 250-1 and the negative electrode terminal 272 of the power generation / light emission tile unit 250-2 are coupled via the negative electrode parallel connection member 291 as illustrated in FIG. 20C. . (Both electrodes are fitted to the negative electrode parallel connection member 291).

  In this state, as shown in FIG. 22B, the DSSC 112-1 of the power generation / light emitting tile unit 250-1 and the DSSC 112-2 of the power generation / light emission tile unit 250-2 are connected in parallel.

  Furthermore, FIG. 22 shows an example of a state in which the power generation / light emitting tile units 250 are connected in a matrix. In the example of FIG. 23A, the power generation / light emitting tile unit 250-1 and the power generation / light emission tile unit 250-2 are connected in series as in the case of FIG. Similarly, the power generation / light emitting tile unit 250-3 and the power generation / light emission tile unit 250-4 are connected in series as in the case of FIG.

  At the same time, the power generation light emitting tile unit 250-1 and the power generation light emission tile unit 250-3 are connected in parallel via the negative electrode parallel connection member 291 as in the case of FIG. Similarly, the power generation light emitting tile unit 250-2 and the power generation light emission tile unit 250-4 are connected in parallel via the negative electrode parallel connection member 291 as in the case of FIG.

  In this state, as shown in FIG. 23B, the DSSC 112-1 of the power generation light emitting tile unit 250-1 and the DSSC 112-2 of the power generation light emission tile unit 250-2 are connected in series, and the power generation light emission tile unit 250-3 DSSC 112-3 and DSSC 112-4 of power generation light emitting tile unit 250-4 are connected in series, DSSC 112-1 and DSSC 112-3 are connected in parallel, and DSSC 112-2 and DSSC 112-4 are connected in parallel. .

  As described above, by forming the positive electrode terminal and the negative electrode terminal of the power generation light emitting tile unit into a spherical uneven shape, a plurality of power generation light emission tile units can be more easily connected in parallel or in series.

<2. Second Embodiment>
[Power generation light emitting system]
The power generation / light emitting tile unit may be able to communicate with other devices. For example, the power generation / light emitting tile unit may perform wireless communication with a communication device such as a mobile phone. Moreover, for example, wired communication or wireless communication may be performed between the power generation light emitting tile units.

  FIG. 24 is a diagram for explaining an example of a power generation light emitting system to which the present invention is applied. 24 includes a movement route guidance server 301, a communication device 302, and a plurality of power generation light emitting tile units 303 (power generation light emitting tile units 303-1 to 303- 5), and the LED of each power generation light emitting tile unit 303 emits light, thereby providing a service for guiding the travel route to the destination to the user of the communication device 302.

  The movement route guidance server 301 stores map information and identification information of each power generation light emitting tile unit 303. The identification information of each power generation / light emitting tile unit 303 and map information are associated with each other, and the position where each power generation / light emission tile unit 303 is installed can be identified from the pieces of information.

  The communication device 302 is composed of, for example, a mobile phone and is operated by a user who receives a travel route guidance service. The communication device 302 can communicate with the travel route guidance server 301 by, for example, wireless communication. The communication device 302 can communicate with the power generation / light emitting tile unit 303 by, for example, wireless communication.

  The power generation / light emitting tile unit 303 stores its own identification information. Further, the power generation / light emitting tile unit 303 can communicate with the communication device 302 by, for example, wireless communication. Furthermore, the power generation / light emitting tile unit 303 can communicate with other power generation / light emission tile units 303 by, for example, wireless communication. Needless to say, the power generation light emitting tile unit 303 can generate power or emit light in the same manner as the power generation light emission tile, the power generation light emission tile unit, and the like described above.

  A user who desires to provide a travel route guidance service to a destination operates the communication device 302 to communicate with the travel route guidance server 301 and provides information indicating the destination, thereby requesting the provision of the travel route guidance service. Do.

  The travel route guidance server 301 specifies an appropriate route from the current location to the destination based on the provided information indicating the destination. When the route to the destination is determined, the movement route guidance server 301 supplies the identification information group of the power generation / light emitting tile unit 303 installed on the route to the communication device 302.

  The communication device 302 communicates with the power generation / light emitting tile unit 303 installed at the position where the user exists, and provides the identification information group acquired from the movement route guide server 301.

  When the supplied identification information group includes its own identification information, the power generation / light emitting tile unit 303 causes the LED to emit light for a predetermined time. In addition, the power generation / light emitting tile unit 303 transmits the supplied identification information group to the power generation / light emission tile unit 303 installed adjacent thereto. Each power generation / light emission tile unit 303 transmits the identification information group to each power generation / light emission tile unit 303 by repeating the above processing.

  In this way, among the power generation / light emitting tile units 303 spread in the passage, the power generation / light emission tile unit 303 designated by the movement route guidance server 301 located between the current location and the destination emits light (lights up or blinks). Thus, route guidance for guiding the user to the destination is provided.

[Power generation light emitting tile unit]
FIG. 25 is a block diagram showing a main configuration example of the power generation / light emitting tile unit 303 in this case.

  As illustrated in FIG. 25, the power generation / light emission tile unit 303 includes one power generation / light emission tile unit 200, a control unit 320, an input unit 321, an output unit 322, a storage unit 323, and a communication unit 324.

  As described above, the control unit 320 controls power generation and light emission of the power generation / light emitting tile unit 200 as in the other examples. In addition, the control unit 320 controls the input unit 321, the output unit 322, the storage unit 323, and the communication unit 324.

  The input unit 321 includes, for example, an arbitrary input device such as a keyboard, a mouse, a button, or a touch panel, an input terminal, and the like. The input unit 321 receives information input from the outside such as a user or another device, and controls the input information. 320.

  The output unit 322 includes a display such as a CRT display, an LCD, a speaker, or an output terminal. The output unit 322 provides information supplied from the control unit 320 to the user as an image or sound, or outputs the information to another device as a predetermined signal. To do.

  The storage unit 323 includes, for example, an SSD such as a flash memory, a hard disk, and the like, stores information supplied from the control unit 320 and identification information of the power generation / light emitting tile unit 303, and stores stored information in the control unit 320. Or to supply.

  The communication unit 324 includes, for example, a wired LAN (Local Area Network), a wireless LAN interface, a modem, and the like, and performs communication processing with other devices via a network including the Internet. For example, the communication unit 324 is controlled by the control unit 320, communicates with the communication device 302 and other power generation / light emitting tile units 303, acquires a computer program via a network including the Internet, and installs it in the storage unit 323. To do.

  Further, a drive 325 is appropriately connected to the power generation / light emitting tile unit 303. For example, a removable medium 326 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately attached to the drive 325. For example, the drive 325 is controlled by the control unit 320, reads a computer program from the removable medium 326, and installs it in the storage unit 323.

[Communication device]
FIG. 26 is a block diagram illustrating a main configuration example of the communication device 302.

  In FIG. 26, a CPU (Central Processing Unit) 351 of the communication device 302 performs various processes according to a program stored in a ROM (Read Only Memory) 352 or a program loaded from a storage unit 363 to a RAM (Random Access Memory) 353. Execute the process. The RAM 353 also stores data necessary for the CPU 351 to execute various processes as appropriate.

  The CPU 351, the ROM 352, and the RAM 353 are connected to each other via a bus 354. An input / output interface 360 is also connected to the bus 354.

  The input / output interface 360 includes an input unit 361 including a keyboard and a mouse, a display including a CRT and an LCD, an output unit 362 including a speaker, a storage unit 363 including a hard disk, and a wired or wireless LAN interface. A communication unit 364 configured by the above is connected. The communication unit 364 performs communication processing via a network including the Internet. For example, the communication unit 364 communicates with the movement route guidance server 301 and the power generation / light emitting tile unit 303.

  A drive 365 is connected to the input / output interface 360 as necessary, and a removable medium 366 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately mounted, and a computer program read from them is It is installed in the storage unit 363 as necessary.

[Movement route guidance server]
FIG. 27 is a block diagram illustrating a main configuration example of the movement route guidance server 301.

  As illustrated in FIG. 27, the movement route guidance server 301 includes a control unit 380, an input unit 381, an output unit 382, a storage unit 383, a communication unit 384, and a drive 385.

  The control unit 380 controls the operation of each unit of the movement route guidance server 301. In addition, the control unit 380 executes processing related to the provision of the travel route guidance service.

  The input unit 381 includes, for example, an arbitrary input device such as a keyboard, a mouse, a button, or a touch panel, an input terminal, and the like. The input unit 381 receives information input from the outside such as a user or another device, and controls the input information. 380.

  The output unit 382 includes a display such as a CRT display, an LCD, a speaker, or an output terminal. The output unit 382 provides information supplied from the control unit 380 to the user as an image or sound, or outputs the information to another device as a predetermined signal. To do.

  The storage unit 383 includes, for example, an SSD such as a flash memory, a hard disk, and the like, and includes map information, identification information of the power generation light emitting tile unit 303, and programs and data executed to realize provision of a travel route guidance service, etc. Or the stored information is supplied to the control unit 380.

  The communication unit 384 includes, for example, a wired LAN or wireless LAN interface, a modem, and the like, and performs communication processing with other devices via a network including the Internet. For example, the communication unit 384 is controlled by the control unit 380, communicates with the communication device 302, acquires a computer program via a network including the Internet, and installs it in the storage unit 383.

  For example, a removable medium 386 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory is appropriately attached to the drive 385. For example, the drive 385 is controlled by the control unit 380, reads a computer program from the removable medium 386, and installs it in the storage unit 383.

[Movement route guidance service]
As described above, the devices configured as described above communicate with each other to provide a travel route guidance service to the user.

  For example, as shown in FIG. 28, it is assumed that the power generation light emitting tile units 303 are spread in the passage. When the user 401 desires to move the route as indicated by the arrow 411 and operates the communication device 302, the communication device 302 sends a power generation light emission located on the route indicated by the arrow 411 from the movement route guide server 301. An identification information group of the tile unit 303 is provided.

  The communication device 302 provides this identification information group to the power generation / light emitting tile unit 421 that is the power generation / light emission tile unit 303 where the user 401 is located. The power generation light emitting tile unit 421 emits light itself because the supplied identification information group includes the identification information of itself. At the same time, the power generation / light emission tile unit 421 provides the identification information group to other power generation / light emission tile units 303 in the vicinity.

  In this way, the identification information group is propagated, and each of the power generation light emitting tile units 303 installed on the route indicated by the arrow 411 designated by the identification information group emits light. In the case of the example in FIG. 28, the power generation / light emitting tile units 421 to 431 emit light.

  As described above, the power generation / light emission tile units 303 may emit light every other or every plurality, or all the power generation / light emission tile units 303 arranged on the path may emit light. Further, the power generation light emitting tile units 303 that emit light may be in one row or in a plurality of rows.

  Furthermore, the color and brightness of light emission are arbitrary. Further, they may be changed with time. Further, the light emission pattern such as blinking, lighting and extinguishing is also arbitrary, and may be changed with time. Further, the color and brightness of light emission or the light emission pattern may be changed for each user who receives guidance.

  For example, in FIG. 28, for a user 402 traveling along a route as indicated by an arrow 412, as shown in the power generation / light emitting tile unit 441 to the power generation / light emitting tile unit 445, The movement route guidance may be performed in a color different from the light emission color of the light emitting tile unit 303.

  Further, each power generation / light emitting tile unit 303 detects the position of the user, and using the detection result, the power generation / light emission tile behind the position of the user receiving the travel guidance (on the opposite side to the destination) that is unnecessary for the travel guidance. The unit 303 may be turned off.

  As described above, the power generation light emitting tile unit 303 communicates with another device, and can cooperate with the other device to notify the detection result by the sensor more efficiently, and can be used for various applications. can do.

[Flow of travel guidance processing]
An example of the flow of movement guidance processing will be described with reference to the flowchart of FIG. When the movement guidance process is started, the power generation / light emitting tile unit 303 in which the user is located communicates with the communication device 302 in step S341, and provides the tile ID which is the identification information of itself. This tile ID is information indicating the current position of the user.

  When the communication device 302 acquires the tile ID in step S321, in step S322, the communication device 302 provides the supplied tile ID and information indicating the destination input by the user to the movement route guidance server 301. .

  When the movement route guidance server 301 acquires the tile ID and information indicating the destination in step S301, the movement route guidance server 301 specifies the movement route from the current position of the user to the destination in step S302. In step S <b> 303, the movement route guidance server 301 identifies the power generation light emitting tiles located on the movement route to the destination, and provides the tile ID (tile ID group) to the communication device 302.

  When the communication device 302 acquires the tile ID group in step S323, the communication device 302 provides the tile group to the power generation / light emitting tile unit 303 in which the user is located in step S324.

  In step S342, the power generation / light emitting tile unit 303 where the user is located acquires the tile ID group. In step S343, the power generation / light emitting tile unit 303 in which the user is located provides the tile ID group to the other power generation / light emission tile units 303.

  When the identification information of itself is included in the tile ID group, the power generating / emitting tile unit 303 emits light for a predetermined time in step S344.

  Similarly, when the power generation / light emitting tile unit 303 in the vicinity of the power generation / light emission tile unit 303 where the user is located acquires the tile ID group in step S361, the tile ID group is transferred to another power generation / light emission tile unit 303 in step S362. If the identification information of the tile ID group is included in the tile ID group, light is emitted for a predetermined time in step S363.

  Such processing is executed in each power generation light emitting tile unit 303, and the tile ID group is transmitted.

  If the tile ID group does not include its own identification information and there is no other power generation / light emitting tile unit 303 to be transmitted, the power generation / light emission tile unit 303 determines in step S381 that the other power generation / light emission tile unit 303 The tile ID group supplied from is acquired, and the process ends.

  As described above, the power generation light emitting tile unit 303 communicates with another device, and can cooperate with the other device to notify the detection result by the sensor more efficiently, and can be used for various applications. can do.

  Since the power generation / light emitting tile unit 303 uses DSSC as a power generation element, it can operate sufficiently even with power generated by indoor light. That is, this travel route guidance service can be provided indoors, such as in a hospital or public facility.

  The series of processes described above can be executed by hardware or can be executed by software.

  When the above-described series of processing is executed by software, a program constituting the software is installed from a network or a recording medium.

  For example, as shown in FIG. 6, the recording medium is distributed to distribute the program to the user separately from the apparatus main body, and includes a magnetic disk (including a flexible disk) on which the program is recorded, an optical disk ( It only consists of removable media 146 consisting of CD-ROM (compact disc-read only memory), DVD (including digital versatile disc), magneto-optical disc (including MD (mini disc)), or semiconductor memory. Rather, it is configured by a hard disk or the like included in the storage unit 143 in which a program is recorded that is distributed to the user in a state of being incorporated in the apparatus main body in advance.

  The program executed by the computer may be a program that is processed in time series in the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program for processing.

  Further, in the present specification, the step of describing the program recorded on the recording medium is not limited to the processing performed in chronological order according to the described order, but may be performed in parallel or It also includes processes that are executed individually.

  In addition, in the above description, the configuration described as one device (or processing unit) may be configured as a plurality of devices (or processing units). Conversely, the configuration described above as a plurality of devices (or processing units) may be configured as a single device (or processing unit). Of course, a configuration other than that described above may be added to the configuration of each device (or each processing unit). Further, if the configuration and operation of the entire system are substantially the same, a part of the configuration of a certain device (or processing unit) may be included in the configuration of another device (or other processing unit). Good. That is, the embodiment of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the gist of the present invention.

  100 power generation light emitting tile, 112 DSSC, 113 LED, 114 power storage unit, 140 control unit, 200 power generation light emitting tile unit, 210 power generation light emitting system, 220 control unit, 250 power generation light emitting tile unit, 260 fastener, 271 positive terminal, 272 negative terminal , 300 power generation light emitting system, 301 movement route guidance server, 302 communication device, 303 power generation light emitting tile unit, 324 communication unit

Claims (11)

A photovoltaic device that converts light energy into electrical energy and transmits incident light;
Power storage means for storing the electric power generated by the photovoltaic power generation means;
Monitoring means for monitoring the voltage obtained by the power generation of the power generation means, and detecting the voltage drop caused by the light generation means being shielded from light; and
A light emitting and emitting device provided on the lower side of the photovoltaic power generation means, and emitting light when the voltage drop is detected by the detection means. The power generation light-emitting device according to claim 1, further comprising a small-capacity storage unit that is connected in parallel to the photovoltaic unit and stores a small-capacity electric power obtained by the power generation of the photovoltaic unit. The power generation light-emitting device according to claim 1, wherein the light-emitting unit emits light for a predetermined time and turns off. The power generation light emitting device according to claim 1, wherein the light emitting means emits light for a predetermined time and gradually turns off. The power generation light emitting device according to claim 1, wherein the detection unit monitors a voltage obtained by power generation of the plurality of photovoltaic power generation units, and detects a drop in the voltage for each of the photovoltaic power generation units. The power generation according to claim 5, further comprising a control unit that controls light emission by each of the plurality of light emitting units, and causes the light emitting unit to emit light at a position different from the photovoltaic unit where the voltage drop is detected by the detection unit. Light emitting device. Storage means for storing a history of detection of the voltage drop by the detection means;
The control means includes the position of the photovoltaic power generation means at which the voltage drop is detected by the detection means, and the light that has been detected by the detection means in the past and is stored by the storage means. The power generation light emitting device according to claim 6, wherein a position where the effect of the voltage is detected in the future is predicted based on a position of the power generation means, and the light emission means at the predicted position is caused to emit light. The power generation light emitting device according to claim 1, wherein a terminal of the photovoltaic power generation means is formed in a fastener tooth shape and can be connected in series or in parallel with another photovoltaic power generation means using a slider. The power generation light emitting device according to claim 1, wherein a terminal of the photovoltaic unit is formed in a spherical uneven shape and can be connected in series or in parallel with another photovoltaic unit by fitting. The power generation light-emitting device according to claim 1, further comprising communication means capable of communicating with another device. In the power generation light emission processing of the power generation light emitting device,
The photovoltaic means converts light energy into electrical energy and transmits incident light,
The storage means stores the generated power,
The detection means monitors the voltage obtained by power generation, detects the voltage drop generated by being shielded from light,
A light-emitting and light-emitting method in which a light-emitting means is provided below the photovoltaic power generation means and emits light when a drop in the voltage is detected.

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