JP2013181375A - Self-luminous device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-luminous device having luminous means such as a solar cell and a storage battery, allowing the storage battery to be charged under the sun in daylight hours and an illuminant to light or blink at night with the charged power, which includes the function of preventing power of the storage battery from being exhausted due to continuous lighting caused by an external factor, the function of changing lighting pattern corresponding to emergency, and display control means for easily confirming necessity of maintenance work at any time.SOLUTION: A self-luminous device includes a solar cell 1, a storage battery 2, and an illuminant 3 such as LED. The storage battery 2 is charged with power generated with the solar cell 1 receiving sunlight. Lighting of the illuminant 3 is automatically initiated when the ambient illuminance detected by an optical sensor 25 reaches a specified value or lower. The lighting control is performed with power stored in the storage battery 2. The self-luminous device includes a maintenance display function which displays the operational state of the self-luminous device.

Description

  The present invention is applied to a self-luminous road fence which is installed on a road and performs a predetermined alarm operation or display operation by lighting, and charges a storage battery with electric power generated by a solar cell in the daytime. In a self-luminous device that is configured to detect ambient brightness with an optical sensor and turn on or blink a light-emitting body such as an LED with the power stored in the storage battery when it becomes dark, A device that displays a prompt to perform maintenance when a case where maintenance work is required, a device that prevents the battery from continuously consuming power without stopping lighting due to an external factor, and The present invention relates to a device that can change the lighting pattern from the outside according to the necessity of a disaster or the like.

  For example, as disclosed in Japanese Patent Application Laid-Open No. 6-207406, a self-luminous road fence buried in a road surface is conventionally used, and a solar cell is also used for garden lights, solar tiles, sensor lights, construction lights, and the like. A self-luminous device equipped with a storage battery and a light emitter has been put into practical use and is widely used because it can be easily installed without the need for wiring for commercial power.

  FIG. 14 shows an example of a conventional self-luminous road fence corresponding to this type. The self-luminous road fence is driven by a solar battery 141, a storage battery 142 that stores an electromotive force of the solar battery 141, and a storage battery 142. A light emitting body 143 such as an LED and a lighting control circuit board 144 that controls the lighting of the light emitting body 143 so that the sunlight from the outside reaches the solar cell 141 and the lighting of the light emitting body 143 is emitted to the outside. Is fixed to the installation surface 145 with anchor bolts or a strong adhesive, and is mainly used to prevent night traffic accidents.

JP-A-6-207406

  Conventional self-luminous devices detect the ambient illuminance with a light sensor, and automatically turn on with the power stored in the storage battery when it is detected that the illuminance is below the specified level. It is controlled to continue. For this reason, if the light sensor is shielded from light by a covering factor such as dirt or snow, it will continue to be lit regardless of the daytime, draining the power of the storage battery, and even if the covering factor is removed, it will function normally until it is fully charged. Cannot light up. In addition, self-luminous road fences installed on the road and garden lights and solar tiles installed in public facilities are useful because they can continue to operate even when commercial power is interrupted in the event of a disaster. In addition, the normal lighting pattern is continued and the effective response to the emergency is not considered. Furthermore, since the self-luminous device has an electronic component and a storage battery therein, its useful life is limited, and before that, the lighting function may be reduced and may fail. In particular, a plurality of self-luminous road fences are arranged in a row, which can improve the driver's recognition as a track line. The self-luminous roadway with a malfunction or reduced lighting function is required to be promptly repaired. However, the conventional self-luminous device does not have enough protection devices to prevent wasteful discharge operation of the storage battery, and there is no maintenance display function to check the operation state and predict the failure and life in advance. There was no other way than relying on actual visual inspection. Furthermore, the inspection for shortening the lighting time due to the deterioration of the electronic parts and the storage battery is actually difficult because it is necessary to inspect before the sun goes down.

  The present invention was made in view of such a problem, and while suppressing the excessive lighting and preventing the consumption of the storage battery, the lighting pattern can be changed from the outside according to the necessity such as a disaster, There is no need to confirm the operation in accordance with the lighting time zone, and a device that can confirm that the self-luminous device is operating normally at an arbitrary time is proposed.

  The self-luminous device of the present invention is equipped with a light sensor, detects the brightness of the surroundings is dark, measures the lighting time after starting lighting, and automatically turns off when the lighting time is exceeded It has a function to prevent wasteful power consumption. In addition, this function is equipped with a clock function that acquires the current date and time in the self-luminous device, and the lighting operation is controlled in consideration of the sunshine time in addition to the detection of ambient illuminance by the light sensor. Thus, more accurate lighting time control is performed to limit the power consumption time by lighting, to protect the storage battery and to reduce the maintenance frequency.

  The self-luminous device of the present invention has a function of receiving a control signal from the outside and changing a setting such as a lighting pattern, receiving a control signal by illumination of a projector, and a radio signal such as a disaster prevention radio, If necessary, the lighting pattern can be changed from a normal lighting pattern to a special lighting pattern. In the event of an emergency when commercial power is interrupted and the streetlights are extinguished, it plays a role in preventing entry into dangerous areas and guiding them appropriately to evacuation sites. It can be changed to an effective lighting pattern.

  The self-luminous device of the present invention is provided with a maintenance display function for diagnosing whether or not the self-luminous device is functioning normally by a diagnostic mechanism and displaying a diagnosis result when starting lighting. Is automatically terminated, and a display sequence for normal lighting is provided. Thereby, the maintenance display is executed by blocking the light to the optical sensor even during the daytime. Furthermore, the maintenance display function can efficiently check the operation state by remote operation by receiving a control signal or a radio signal from the illumination of the projector and starting display.

  The main invention of the present application is a self-luminous device that includes a solar battery, a storage battery, and light emitting means, receives sunlight during the day and charges the storage battery, and lights or flashes with the power charged in the storage battery at night In an emergency such as a disaster, the normal lighting pattern is changed to an emergency lighting pattern so that it can be used for evacuation guidance, and the battery power is consumed without stopping lighting due to external factors. In addition, the maintenance frequency is reduced, and a maintenance display that can confirm the necessity of maintenance work at an arbitrary time is presented to the inspector in a lighting pattern to facilitate maintenance.

The block diagram which shows the circuit structure used as the basis of this invention The flowchart which shows the lighting operation | movement procedure of the circuit structure used as the basis of this invention Flow chart showing standby processing Illumination waveform example showing the lighting pulse of the maintenance display Illumination waveform diagram example showing simple maintenance display lighting pulse Illumination waveform example showing the lighting pulse of the maintenance display with 4 LEDs Waveform diagram example showing command pulse signal Block diagram showing circuit configuration with command reception and radio clock added Flow chart showing instruction reception and lighting operation procedure of circuit configuration with addition of radio timepiece Flow chart showing instruction reception processing Flow chart showing lighting control processing Example of lighting operation corresponding to an emergency of the self-luminous device of the present invention Lighting state transition diagram showing lighting operation of the self-luminous device of the present invention Sectional view of a conventional light-emitting road fence

  A basic circuit configuration of the self-luminous device of the present invention is shown in FIG. Since this basic circuit configuration can be configured with a relatively small circuit scale, the power consumption can be kept small, and there is an advantage that the solar cell 1 and the storage battery 2 can be set small. During the day, the storage battery 2 is charged by the charging circuit 21 with the electromotive force generated by the solar cell 1 upon receiving sunlight. The electromotive force of the solar cell 1 is converted into digital information by the A / D converter 24 and input to the arithmetic processing unit 50. Similarly, the voltage of the storage battery 2 and the output of the temperature sensor 26 are converted into digital information by the A / D converter 24. Is input to the arithmetic processing unit 50. The arithmetic processing unit 50 controls the charging circuit 21 based on the information on the voltage of the solar battery 1, the voltage of the storage battery 2, and the output voltage of the temperature sensor 26, and appropriately controls the charging current so as not to overcharge the storage battery 2. To charge.

  When the light sensor 25 detects the lighting environment illuminance, the lighting starts, and when the light sensor 25 detects the lighting environment illuminance, the lighting ends. For the optical sensor 25, a CdS cell, a photodiode, or the like is used, and an output voltage proportional to the illuminance is obtained. This output voltage is converted into digital information by the A / D converter 24 and input to the arithmetic processing unit 50. When the output voltage is lower than the set value of the lighting environment illuminance, the lighting environment illuminance is determined. When it is higher than the set value, it is determined that the light is turned off. Here, since the solar cell 1 generates an electromotive force corresponding to the illuminance of the external environment, the photosensor 25 may be used instead.

  In this embodiment, an arithmetic processing unit 50 including a CPU 51, a memory 52, an input / output IF 53, and an oscillator 54 is provided. The CPU 51 is operated by a clock that clocks the accurate time obtained from the reference oscillator 54, and by counting this, it is possible to measure time such as elapsed time from lighting normally and lighting duration. The memory 52 includes a temporary storage SRAM and an EEPROM that can retain the memory even when the storage battery 2 is completely discharged, and stores processing information of the CPU 51. Thus, the arithmetic processing unit 50 performs arithmetic processing on the output voltage of the optical sensor 25, the output voltage of the temperature sensor 26, the voltage of the solar battery 1, and the voltage of the storage battery 2 according to a program to control lighting and charging. The diagnosis mechanism is installed in a program and diagnoses whether or not the self-luminous device is functioning normally and displays a maintenance display.

  The lighting operation is controlled by a lighting pattern generated by the arithmetic processing unit 50. As shown in FIG. 1, the light emitter 3 is composed of, for example, four light emitting diodes of LED 1, LED 2, LED 3, and LED 4, and the booster circuit 22 is a light emitting diode that uses the voltage of the storage battery 2 as the light emitter 3. The voltage is increased to a voltage required for lighting, and the drive circuit 23 uses the boosted voltage to individually light-control the light emitter 3 corresponding to the lighting control signal based on the lighting pattern information from the arithmetic processing unit 50. Let The maintenance display is performed by lighting the light emitter 3 with a lighting pattern corresponding to the diagnosis result of the diagnostic mechanism. In the lighting operation, the arithmetic processing unit 50 always monitors the voltage of the storage battery 2, and when it falls below the set value of the lighting possible voltage, the lighting is stopped to prevent overdischarge.

  FIG. 2 is a flowchart showing a lighting operation procedure of the self-luminous device as the basis of the present invention. This program has an infinite loop and is configured to continue operation as long as there is no abnormality in the circuit or power supply voltage. Starting from START (step 201), first, the measurement holding information in the memory 52 is initialized, and the measurement of the startup time is started (step 202). Next, the process proceeds to charge / light-off standby (step 203), and if the electromotive force generated by the solar cell 1 upon receiving sunlight can charge the storage battery 2, the storage battery 2 is appropriately charged by the charging circuit 21.

The output voltage of the optical sensor 25 is measured to determine whether or not the surrounding is in the lighting environment illuminance (step 204). When the surrounding is bright and the lighting environment illuminance is not (NO), the process returns to the charging / turn-off standby (step 203). . Here, when the surroundings are dark and the lighting environment illuminance is predetermined (YES), the measurement of the lighting time is started (step 205), the maintenance display (step 206) according to the present invention is executed, and the display operation is performed. After completion, the normal lighting state (step 207) is entered.

  In the above-described normal lighting state (step 207), there is a voltage at which the lighting operation can be continued by measuring the voltage of the storage battery 2 to determine whether or not the lighting operation is possible (step 208). In addition, as long as the lighting duration time exceeds a preset time (step 209) and the lighting time does not exceed (NO), a loop that maintains a normal lighting state is formed, It is determined whether or not the surroundings are in the lighting environment illuminance (step 210), and the process continues until the surroundings become brighter and the lighting environment illuminance ceases (NO).

  Here, the voltage of the storage battery 2 is measured to determine whether or not the voltage can be turned on (step 208). When the voltage drops and the lighting operation cannot be continued (NO), the voltage of the storage battery 2 is determined. After exiting the loop as an abnormality, the abnormality is recorded / updated in the memory 52 as information used for maintenance display (step 213), and then the process returns to the charge / light-off standby (step 203). Further, it is determined whether or not the lighting duration time has been exceeded (step 209), and when the lighting time has been exceeded (YES), the process exits from the loop as an abnormality of the lighting time excess, and the standby process (step 301) shown in FIG. )

  It is judged whether or not the surroundings are in the lighting environment illuminance without detecting any abnormality (step 210), and when it becomes brighter and becomes no longer in the lighting environment illuminance (NO), the lighting is a short test lighting for maintenance display In order to determine whether or not it is, it is determined by comparing the continuous lighting time with the night lighting time (step 211). 203), when the battery is normally lit for a long time (YES), the voltage of the storage battery 2 is measured (step 212), recorded and updated as maintenance display information in the memory 52 (step 213), and then charged and extinguished (step 203). Return to).

  The standby process shown in FIG. 3 is a process for limiting the lighting duration time to prevent unnecessary power consumption, and the lighting duration time exceeds, for example, 10 hours set as the time limit for normal night lighting. It is executed when This indicates that the solar cell 1 is in a state where it cannot generate power for a longer time than the set time, and the cause is that the body of the self-luminous device is dirty, covered with snow, etc. It is assumed that

  The state below the lighting environment illuminance described above is detected by determining whether or not the lighting duration time of FIG. 2 has exceeded (step 209), and when the lighting time has exceeded (YES), the standby process shown in FIG. The process proceeds to the flowchart. In the standby process (step 301), the lighting is stopped and the lamp is turned off (step 302). It is determined whether or not the surrounding area has the lighting environment illuminance (step 303), and the dark state where the light sensor 25 has the lighting environment illuminance is determined. While it is continuously detected (YES), the light-off standby (step 302) is continued to prevent the storage battery 2 from being consumed. Then, it is determined whether or not the surrounding is illuminating environment illuminance (step 303), and when it becomes bright and ceases to be illuminating environment illuminance (NO), the voltage of the storage battery 2 is measured (step 304) and is displayed as maintenance display information. After recording / updating in the memory 52 (step 305), the standby process is terminated (step 306), and the process returns to the charge / light-off standby (step 203) shown in FIG.

  The diagnostic mechanism for the maintenance display is implemented in a program for executing the maintenance display (step 206) shown in FIG. 2, and is recorded and updated in the memory 52 as maintenance display information (step 213 in FIG. 2, and FIG. 3 Step 305) Diagnoses whether the self-luminous device is functioning normally based on the operating state information and the startup duration time, and determines the lighting pattern corresponding to the display content including whether or not maintenance display can be executed from the diagnosis result. Then, the light emitter 3 is turned on to output a maintenance display. The maintenance display operates not only the lighting state of all the light emitters 3 by operating all the light emitters 3 included in the self-luminous device, but also the storage battery 2, the booster circuit 22, the drive circuit 23, The operating state of the arithmetic processing unit 50 can be confirmed by visual inspection. The diagnostic contents in the diagnostic mechanism include, for example, the output characteristics of the solar battery 1, the charge / discharge characteristics of the storage battery 2, the internal resistance value, the light emission output characteristics with respect to the current of the light emitter 3, the ambient illuminance characteristics obtained by the optical sensor 25, and the temperature sensor. The temperature information of the storage battery 2 obtained by the memory 26 may be measured as appropriate and may be statistical information stored in the memory. Further, this diagnostic mechanism may be independent as an external circuit in order to improve reliability.

  The maintenance display by the diagnosis mechanism is displayed by, for example, a lighting pattern of the light emitter 3 shown in FIG. In the maintenance display period, GP means a guide pulse, which is provided to assist visual confirmation of display pulses that are lit before and after the guide pulse, and is lit for about 0.7 seconds. The presence / absence of continuous display pulses A1, A2 and A3 indicates, for example, the state of the remaining charge shown in Table 1, and the presence / absence of continuous display pulses B1, B2 and B3 indicates, for example, the activation shown in Table 2 Means the duration state. The maintenance display period in this example is about 5.5 seconds, and the visual inspection is completed in a short time.

  As shown in Table 1, the information indicated by the maintenance display indicates that the continuous display pulses A1, A2, and A3 indicate the remaining charge states 1 to 4 of the storage battery 2, for example, a NiMH storage battery is used for the storage battery 2. State 1 is when the measurement result per storage battery is 1.2 V or higher, state 2 is 1.1 V or higher, state 3 is 1.0 V or higher, state 4 is the voltage during the lighting operation of the previous day. Indicates the time when the lighting operation was stopped regardless of the night time. For example, when a lithium ion storage battery is used as the storage battery 2, the state 1 is when the measurement result per storage battery is 3.6 V or more, the state 2 is 3.4 V or more, and the state 3 is 3.2 V At the time described above, state 4 shows the time when the lighting operation was stopped regardless of the voltage during the lighting operation on the previous day because the voltage was less than 3.2V.

  Further, as shown in Table 2, the continuous display pulses B1, B2, and B3 indicate states 1 to 4 of the startup duration, and the operation of the CPU 51 is temporarily stopped due to, for example, a circuit abnormality or an overdischarge of the storage battery 2. After that, the continuous operation time after restarting is displayed. This is a verification as to whether or not the self-luminous device is stably operating normally over a long period of time, and provides information that serves as a guideline for performing maintenance.

  In the display example of FIG. 4, FIG. 4 (a) shows that the amount of charge is sufficient and is operating normally for more than three months, and FIG. 4 (b) shows that the amount of charge is medium but 3 4 (c) shows that it has been operating normally for more than a month, and FIG. 4 (c) shows that it was not able to complete the lighting operation the previous day, but it has been operating normally for more than 3 months. Although the stored charge amount was measured as sufficient, it indicates that the battery was restarted in less than a day. Accordingly, it can be determined that the maintenance time is close in FIG. 4B, and it can be determined that the maintenance should be performed in FIGS. 4C and 4D.

  A simple maintenance display example is shown in FIG. In this example, when the charge amount of the self-light-emitting device is in the state 1 of Table 1 as shown in FIG. 5A, the normal lighting is started without displaying the maintenance as shown in FIG. Then, for example, as the state of the charge amount stored in the order of states 2, 3, and 4 in Table 1 changes, the maintenance display is changed and displayed in the order of FIGS. 5B, 5C, and 5D. Thereby, when the maintenance display appears, it can be confirmed that the maintenance time is near, and when it is displayed with a long lighting pattern, it can be easily confirmed that the maintenance should be performed.

  For example, FIG. 6 shows a maintenance display example of the present self-light-emitting device provided with the light emitter 3 of four of LED1, LED2, LED3, and LED4. In this example, the GP guide pulse turns on all four light emitters 3 in order, LED1, LED2, LED3, and LED4. Thereby, it is possible to check not only all lighting states but also whether the internal circuit and the program are operating normally. Further, for example, as the state of the charge amount stored in the order of states 1, 2, 3, and 4 in Table 1 changes, the maintenance display is in the order of FIGS. 6 (a), (b), (c), and (d). Change and display. As a result, it can be confirmed that the smaller the number of lights in the section between the GP guide pulses, the closer the maintenance time is, and maintenance should be performed when the maintenance display with one lighting in FIG. 6D is performed. It can be confirmed easily.

  Here, the target items for diagnosing whether or not the self-luminous device is functioning normally by the diagnostic mechanism, and the display content, lighting pattern, lighting time, emission color, etc. in the maintenance display are the same as those of the self-luminous device. The specification may be changed in accordance with the form. For example, by using LEDs with different emission colors, maintenance is not necessary when green, and maintenance is performed when red.

  The maintenance display by this program sequence is always executed immediately before the normal lighting operation is started when the light sensor 25 measures the ambient brightness and detects that the lighting environment illuminance is present. Therefore, in order to display maintenance for inspection, the following operation may be performed depending on the operating environment of the self-luminous device. (1) When the surrounding area is bright and is in a charging / extinguishing standby state, the ambient light applied to the solar cell 1 as a photosensor is blocked. (2) When the periphery is dark and is in the lighting operation state, the irradiation is stopped after the solar cell 1 that is the optical sensor is artificially irradiated with light to enter the charging / extinguishing standby state. (3) In the standby state due to excessive lighting time, remove the factor that the solar cell 1 that is the optical sensor cannot receive light, and artificially irradiate the solar cell 1 with light and enter the standby state for charging / extinguishing the ambient light. Cut off. By the above operation, the maintenance display is executed at a desired time, and the operation state of the self-light-emitting device can be confirmed.

  Here, the maintenance display may be started by the inspector irradiating the optical sensor 25 with a specific light pattern shown in FIG. 7 using a projector. FIG. 7 (a) shows a waveform diagram of a projection pattern of a simple maintenance display command configured by a series of a constant irradiation time t1 and a constant irradiation stop time t2. The light pattern from the projector is received by the optical sensor 25, converted to digital by the A / D converter 24, and input to the arithmetic processing unit 50. The arithmetic processing unit 50 measures the irradiation time t1 and the irradiation pause time t2 to determine whether or not the light pulse is a maintenance display command. Further, the arithmetic processing unit 50 counts the continuous number to improve the accuracy, and then performs maintenance. It is determined whether or not the light pattern is a display command. If it is determined that the display command is a maintenance display command, maintenance display is executed. Thereby, the maintenance display of this self-light-emitting device is presented only to the inspector possessing the projector capable of irradiating the specific pattern, and the inspector can confirm the operation state at a desired time.

  For example, as shown in FIG. 7B, information obtained by pulse encoding using a pair of long and short pulses representing 0 and 1 may be used as the light pattern irradiated from the projector. The guide pulse is a series of pulses representing 0, and informs that a DATA pulse starting from 1 is transmitted subsequently. A DATA pulse starts with a pulse representing 1 as a start bit (S), converts DATA consisting of 8 bits into a pulse corresponding to a numerical value of 0 and 1 expressed in binary number, and adds a parity bit (P) at the end. To send. Here, the DATA pulse shown in FIG. 7B is a code corresponding to the numerical value 89, and a numerical value from 0 to 255 can be transmitted as the DATA. Further, it is possible to transmit a plurality of DATA following the guide pulse, and information of 8 to the power of n can be transmitted by n DATA. As a result, not only the maintenance display command but also a lighting pattern change command, an internal setting parameter change command, and the like can be transmitted.

  FIG. 8 shows a circuit configuration in which a radio wave receiving circuit 81 and a radio clock circuit 83 are additionally mounted on the circuit configuration which is the basis of the present invention. The basic component numbers in FIG. 8 are the same as those in FIG. In the basic circuit configuration shown in FIG. 1, a command from the outside is received by irradiating the optical sensor 25 with a specific light pattern using a projector, but in the configuration shown in FIG. The self-luminous device receives the radio wave from the radio wave receiving antenna 82 and demodulates it by the radio wave receiving circuit 81. The pulse information returned to the control pulse waveform shown in FIG. 7B is input to the arithmetic processing unit 50. As a result, it is possible not only to transmit commands from a relatively close position by the projector, but also to transmit commands collectively to the self-light emitting devices scattered over a wide range from a remote location.

  In addition, the circuit configuration shown in FIG. 8 receives a standard signal for a radio clock operated by the National Institute of Information and Communications Technology using the radio clock antenna 84, and the radio clock circuit 83 always keeps the date and time. It has a function to be calibrated correctly. The arithmetic processing unit 50 refers to the standard sunset time and sunrise time based on the current date information obtained from the radio clock circuit 83 and corrects it according to the conditions depending on the installation location. The lighting time zone and the light-off time zone having a time width of 30 minutes are updated every day, and using this and current accurate time information obtained from the radio clock circuit 83, the sunrise time and sunset time are set. The lighting start and lighting end are controlled in consideration of the above. Here, when accurate time control is not required, a clock that operates by counting clock signals output from the oscillator 54 may be used.

  FIG. 9 is a flowchart showing a lighting operation procedure of the self-luminous device having a circuit configuration including the radio wave receiving circuit 81 and the radio clock circuit 83 shown in FIG. Similarly to the processing flow of the basic circuit configuration shown in FIG. 2, the battery is started after START (step 901), the measurement holding information in the memory 52 is initialized, and the start-up time measurement is started (step 902). -It becomes a light extinction stand-by (step 903), it will be light extinguished and it will be in the state which charges the storage battery 2 appropriately by the electromotive force of the solar cell 1. FIG.

  In the charging / extinguishing standby state, command reception processing (step 904) and lighting control processing (step 905) are executed, lighting start (flag Fs = 1) is determined (step 906), and when the lighting start condition is not satisfied (NO: The flag Fs = 0) forms a loop to return to the charging / extinguishing standby (step 903) and continues until the lighting start condition is satisfied. Here, the flag Fs is a flag indicating lighting (flag Fs = 1) and extinguishing (flag Fs = 0) output by the condition determination in the lighting control process (step 905).

  The loop that holds the charging / extinguishing standby state determines the lighting start (flag Fs = 1) (step 906), and when the lighting start condition is satisfied (YES: flag Fs = 1), is extracted from the loop, and the lighting control ( Step 907) is executed to turn on the light. In the lighting control (step 907), the light emitter 3 is controlled to be turned on using the lighting pattern information set in the memory 52 by the arithmetic processing unit 50.

  As long as the lighting state is a voltage at which the lighting operation can be performed by measuring the voltage of the storage battery 2 (step 908) and there is a voltage at which the lighting operation can be continued (YES), command reception processing ( Step 909) and lighting control processing (step 910) are executed, lighting end (flag Fs = 0) is judged (step 911), and lighting control (step 907) is performed when the lighting end condition is not satisfied (NO: flag Fs = 0). ), And continues until the lighting end condition is reached.

  Here, the voltage of the storage battery 2 is measured to determine whether or not the voltage can be turned on (step 908). When the voltage drops and the lighting operation cannot be continued (NO), the voltage of the storage battery 2 is determined. The abnormality exits from the lighting state loop, and the abnormality is recorded / updated in the memory 52 as information used for maintenance display (step 913), and then the process returns to the charging / extinguishing standby (step 903). Further, the lighting end (flag Fs = 0) is determined (step 911), and when the lighting end condition is satisfied (YES: flag Fs = 0), it is also extracted from the lighting state loop, and the voltage of the storage battery 2 is measured (step 912). Then, after recording / updating as maintenance display information in the memory 52 (step 913), the process returns to charging / extinguishing standby (step 903).

In the command reception processing (steps 904 and 909), commands are processed according to the flowchart of FIG. 10, and Table 3 shows an example of command information executed here. This is pulse-encoded by the method shown in FIG. 7B and is composed of 10 bytes from DATA-1 to DATA-10. The symbol $ used here indicates that the subsequent number is a hexadecimal number, and 1-byte data is a 2-digit numerical value. Also, $ FF in which all pulses transmitted in 1-byte data are 1 is used as a special code that does not limit the target.

  7 bytes from DATA-1 to 7 are used to limit the range of a self-luminous device to be received when information is transmitted using radio waves, and a command is narrowed by a light pattern using a projector. The method may be omitted when transmitting to a range. Here, DATA-1 indicates the classification code of the self-luminous device to receive data, for example, $ 01 for the self-luminous road fence, $ 02 for the self-luminous tile, and so on. $ FF is transmitted when all are targeted. DATA-2 indicates the prefecture number where the self-luminous device is installed. For example, $ 01 for Hokkaido, $ 02 for Aomori, and so on. To do. DATA-3 indicates a general area number in the prefecture, and $ FF is transmitted when the area is not limited. DATA-4 indicates a smaller area number, and $ FF is transmitted when the area is not limited. DATA5 to 7 indicate ID codes unique to the self-luminous device, and $ FFFFFF is transmitted if not limited. Thus, for example, when all the self-luminous road fences installed in Aomori Prefecture are targeted, $ 01, $ 02, $ FF, $ FF, and $ FFFFFF are transmitted.

  DATA-8 indicates a command code (cmd). For example, $ 01 is a maintenance display command, $ 02 is an emergency lighting command, $ 03 is a normal lighting display command, $ 04 is a lighting display change command, and so on. DATA 9 and 10 indicate auxiliary data, and are used when auxiliary data is required in addition to the instruction code. For example, the maintenance display command may be only $ 01, and the lighting display change command can be changed to the lighting display corresponding to the auxiliary data $ 0003 by transmitting auxiliary data $ 0003 following $ 04.

  As a result, the maintenance display can be displayed at the same time by limiting the reception target. For example, if $ 01, $ 02, $ 03, $ 17, $ FFFFFF, $ 01, $ FFFF are transmitted, The self-luminous road fence installed on the road in the $ 17 area of the 03 area simultaneously performs maintenance display, and the inspector can perform an efficient inspection from a vehicle or the like at a desired time. Further, in the event of an emergency due to a disaster, an emergency lighting command can be transmitted in a batch for a more disaster-covered range. For example, if $ FF, $ 01, $ 05, $ FF, $ FFFFFF, $ 02, $ FFFF are transmitted , All the self-luminous devices installed in the $ 05 area of Hokkaido execute the emergency lighting command and start the emergency lighting all at once. Then, when canceling the emergency lighting, by transmitting $ FF, $ 01, $ 05, $ FF, $ FFFFFF, $ 03, $ FFFF, the normal lighting display command is executed and the normal lighting is restored.

  As shown in the flowchart of FIG. 10, the instruction receiving process starts the instruction receiving process (step 1001), determines whether the instruction information is received (step 1002), and when the instruction information is not received (NO) The process ends (step 1010). When the instruction information is received (YES), it is determined whether or not the instruction is an execution target (step 1003). When the instruction information is the execution target (YES), the process branches according to the value of cmd indicating the instruction code (step 1004). To do. For example, when the value of cmd is 1, a maintenance display (step 1005) is executed to diagnose whether the diagnosis mechanism is functioning normally, and a maintenance display is output with a lighting pattern corresponding to the diagnosis result. After that, the original light is turned off or turned on. When the value of cmd is 2, the emergency lighting display (step 1006) is executed, and the lighting operation is executed even during the day according to the emergency lighting pattern set in advance corresponding to the installation location. By executing the command of the normal lighting display (step 1007) whose value is 3, the emergency lighting is canceled and the normal lighting operation is restored. When the value of cmd is 4, the lighting display change (step 1008) is executed, lighting pattern information corresponding to the auxiliary data following the instruction code is set in the memory 52, and lighting control is performed according to this setting information (step in FIG. 9). 907) executes a lighting operation. The example of this flowchart shows that it is possible to easily extend the command, and it is possible to deal with an internal setting parameter change command. Further, when an instruction code having no processing corresponding to the value of cmd is received, it is handled by exception processing (step 1009).

  The lighting control process (steps 905 and 910) shown in FIG. 9 will be described with reference to the flowchart of FIG. This processing is executed by the arithmetic processing unit 50 using the lighting time zone and the extinguishing time zone that are updated and set daily from the current date information obtained from the radio clock circuit 83. When the lighting control process is started (step 1101), the operating environment (flag Fc = 1) is determined (step 1102), and if it is not the operating environment condition (NO: flag Fc = 0), is the charging environment illuminance determined? When the determination is made (step 1103) and the charging environment illuminance has not been reached (NO), the operation environment flag Fc remains unchanged without changing the operation environment flag Fc, and the process ends (step 1114). Is formed. This continues until the voltage of the solar cell 1 is measured and the storage battery 2 is in a chargeable state, and when it cannot be charged during the day due to external factors, the lighting operation is not started and power consumption is started. To prevent.

  The operating environment (flag Fc = 1) is determined (step 1102). When the charging operation is confirmed and the operating environment condition is satisfied (YES: flag Fc = 1), the current time is compared with the lighting time zone, and the lighting time range is determined. (NO) If not applicable (NO), it is determined whether it is in the extinguishing time range compared to the extinguishing time zone (step 1109), and if not applicable (NO), the flag Fs is changed. The process is terminated (step 1114).

Here, it is determined whether it is in the lighting time range (step 1105), and when it is in the range (YES), it is determined whether the lighting environment illuminance is based on the output voltage of the optical sensor 25 (step 1106), which corresponds to the lighting environment illuminance. When the darkness is detected (YES), the flag Fs is set to 1 (step 1108) and lighting is started. When the darkness corresponding to the lighting environment illuminance is not detected (NO), the current time obtained from the radio clock circuit 83 is compared with the lighting time end time (step 1107), and the current time becomes the lighting time end time. When it reaches (YES), the flag Fs is set to 1 (step 1108) and lighting is started.

  Similarly, it is determined whether it is in the extinguishing time range (step 1109), and if it is in the range (YES), it is determined whether it is in the extinguishing environment illuminance based on the output voltage of the optical sensor 25 (step 1110) and corresponds to the extinguishing environment illuminance When the brightness is detected (YES), the flag Fs is set to 0 (step 1112) and the lighting is ended. When the brightness corresponding to the lighting environment illuminance is not detected (NO), the current time is compared with the turn-off time end time (step 1111), and when the current time reaches the turn-off time end time (YES). Then, the flag Fs is set to 0 (step 1112), and lighting is ended. When the flag Fs is set to 0 (step 1112), the flag Fc is initially set to 0 (step 1113) so that the lighting operation is not shifted until the charging operation is executed again.

  With this lighting control process, lighting starts when the light sensor 25 detects lighting environment illuminance in the lighting time zone, starts when the lighting time zone passes without being detected, and is similarly turned off. Is turned off when the ambient light illuminance is detected during the turn-off time period, and is turned off when the turn-off time period is exceeded without being detected. If there is no charging operation before the lighting time of, control is performed so as not to light up. As a result, a highly accurate lighting operation corresponding to the installation environment such as a mountainous area is realized.For example, in a place that is strongly affected by external lighting, the time zone width is set to be small and the sunset time and date are mainly set. By controlling the lighting according to the time depending on the departure time, malfunction due to environmental factors can be prevented.

  FIG. 12 shows a lighting operation example corresponding to an emergency of the self-luminous device using, for example, four LEDs as the light emitter 3, and a white circle represents lighting and a black circle represents light extinction. FIG. 12A shows a normal lighting operation example, and four LEDs are repeatedly turned on and off simultaneously. On the other hand, FIG. 12B is an example of lighting operation to show that it is an emergency, and the outside and inside LEDs alternately emit light at shorter intervals than usual to notify that it is an emergency. To do. FIG. 12C is an example of a lighting operation for guiding to a safe evacuation place in an emergency, and the light is guided to the right by sequentially emitting light to the right from the left LED 1. Similarly, FIG. 12D is an example of a lighting operation for guiding in the opposite direction to the above, and the LED 4 is guided to the left by emitting light sequentially from the right LED 4 to the left. Here, the emergency pattern and the direction of guidance are shown by changing the lighting pattern, but the emergency situation is announced more strongly by changing the lighting color to red or increasing the light emission intensity. You may make it function more effectively in prevention of intrusion and guidance to a safe area.

  The emergency lighting command to change to the lighting operation corresponding to this emergency may be applied to an emergency warning signal for warning and evacuation of earthquakes and tsunamis by emergency warning broadcasting. By transmitting an emergency lighting command in conjunction with the system, it is possible to quickly change to an emergency lighting that requires an emergency, and an effective disaster prevention system that does not rely on commercial power can be constructed. For example, when the self-luminous road fence of the present invention is installed on an evacuation route to a disaster prevention base, it is usually useful for traffic safety, and when an earthquake is predicted, the driver is prompted to slow down, and further, in the event of a disaster where the streetlight has disappeared A system that can safely guide evacuees to the shortest route to the disaster prevention base can be easily constructed.

  Based on the above description of the operation, the lighting operation of the self-luminous device of the present invention will be described with reference to FIG. Here, FIG. 13A is an example of a lighting operation of a conventional self-luminous device. When the ambient brightness is measured with the optical sensor 25 and an output that is a preset lighting environment illuminance is detected, the lighting is performed. A normal lighting operation such as flashing or flashing is started, and the light sensor 25 is not turned off until the light sensor 25 detects the brightness of the turn-off environment illuminance. For this reason, when the optical sensor 25 is shielded from light by an external factor or the like, the stored battery 2 is completely discharged, and even if the cause of the shading is removed, the solar cell 1 receives sunlight to generate power. However, normal operation cannot be restored until the storage battery 2 is fully charged over time.

  In the basic self-luminous device shown in FIG. 1 of the present invention, as shown in FIG. 13B, the lighting time after the start of lighting after detecting that the brightness of the surrounding area has become dark. When the lighting time exceeds a predetermined time, the light is turned off regardless of the surrounding brightness, and power consumption is prevented in a standby state until a new charging operation is performed. Further, in the self-luminous device having the clock function shown in FIG. 8, as shown in FIG. 13 (c), the lighting time zone and the lighting time zone are determined in advance from the current date by the clock function. When the light sensor 25 detects the lighting environment illuminance in the lighting time zone, or when the end time of the lighting time zone is reached without being detected, the normal lighting is always started. Similarly, when the light sensor 25 detects the light-off environment illuminance in the light-off time zone, or when the end time of the light-off time zone is reached without being detected, the normal light-up is always finished and the light is turned off. Control is performed so that the lighting state continues during the time from the start of lighting to the turn-off, and when there is no charging operation from the turn-off to the next lighting time zone. This realizes highly accurate lighting control by time management that suppresses malfunctions due to external factors, limits power consumption due to useless lighting, protects the storage battery 2, and reduces maintenance frequency.

  The self-luminous device of the present invention has a maintenance display function that diagnoses whether or not the self-luminous device is functioning normally by a diagnostic mechanism and displays the diagnosis result using the light emitter 3 as necessary. . In the maintenance display function, as shown in FIG. 13B, when the light sensor 25 measures the ambient brightness and detects the lighting environment illuminance, the maintenance display indicating the diagnosis result by the diagnosis mechanism is executed first. Then, a display sequence for automatically terminating the maintenance display and shifting to normal lighting is provided. Thereby, when the maintenance display is necessary according to the diagnosis result by the diagnosis mechanism, it is always executed before the start of the normal lighting, and it can be displayed and confirmed by shutting off the light to the light sensor 25 even during the daytime. Further, as shown in FIG. 13C, the maintenance display receives a maintenance display command by illumination controlled by the light sensor 25 in a specific pattern from the projector, and receives the radio wave reception shown in FIG. In the self-luminous device having the function, the maintenance display command by the radio wave signal is received by the radio wave receiving circuit 81, and the maintenance display is started at an arbitrary time. As a result, the operation state can be confirmed by causing a plurality of self-luminous devices to execute a maintenance display command by remote control. For example, a range in which an inspector can visually confirm by lighting a specific pattern from a vehicle or the like with a projector. By performing maintenance display on the self-luminous device, efficient inspection can be realized.

  Furthermore, the self-luminous device according to the present invention has a function of receiving an external control signal and changing an internal setting such as a lighting pattern. As shown in FIG. It can be changed to lit and lit up. This is because the command by the illumination controlled to a specific pattern from the projector is transmitted to the optical sensor 25, or in the configuration having the radio wave reception function shown in FIG. By transmitting to 81, the set value inside the self-luminous device can be changed. With this function, for example, upon receiving an emergency lighting display command by an emergency warning signal for warning of earthquake or tsunami by an emergency warning broadcast or an evacuation instruction, a special lighting pattern as shown in FIG. Even when commercial power is interrupted and the street light is extinguished, the lighting operation is performed so as to prevent entry into a dangerous area in the event of a disaster and to guide the evacuation site appropriately.

  As mentioned above, although the invention contained in this application was demonstrated by embodiment by illustration and a table | surface, the invention contained in this application is not limited by the said embodiment, In the range of the technical idea of the invention contained in this application Various changes are possible. For example, in the configuration example of the present invention, the arithmetic processing unit 50 is provided and controlled by a program. However, the boost circuit 22 may be controlled by a logic circuit or the like. It is not necessary if it is higher than the voltage required for Further, in FIG. 9, commands are transmitted and received using radio waves and light, but transmission and reception by sound waves using a loudspeaker and a microphone may be used, and various other changes are possible.

DESCRIPTION OF SYMBOLS 1 Solar cell 2 Storage battery 3 Luminescent body 21 Charging circuit 22 Booster circuit 23 Drive circuit 24 A / D converter 25 Optical sensor 26 Temperature sensor 50 Arithmetic processing part 51 CPU
52 Memory 53 I / O IF
54 Oscillator 81 Radio wave reception circuit 82 Radio wave reception antenna 83 Radio wave clock circuit 84 Radio wave clock antenna 140 Case 141 Solar battery 142 Storage battery 143 Light emitter 144 Lighting control circuit board 145 Installation surface

Claims (12)

When the storage battery is charged with the electric power generated by the solar battery in response to sunlight, and when the ambient illuminance is detected by an optical sensor and it is detected that the illuminance falls below a specified value, a light emitter such as an LED In a self-luminous device configured to automatically start lighting and control the lighting with the electric power stored in the storage battery, it has a maintenance display function for displaying the operating state of the self-luminous device. Self-luminous device characterized by. The maintenance display function includes a diagnostic mechanism using a result of monitoring the operating state of the components constituting the self-light-emitting device, and determines that the self-light-emitting device needs to be maintained at the start of the lighting. The self-luminous device according to claim 1, wherein the self-luminous device is displayed when the device is in an activated state, and then shifts to normal lighting. The self-luminous device according to claim 1 or 2, wherein the diagnosis mechanism detects whether the lighting operation from the time when the operation is started is normal. The maintenance display function includes a function of receiving a specific command by light, radio wave, voice, or the like, and starts the maintenance display at an arbitrary time by receiving the specific command. The self-luminous device according to any one of claims 1 to 3. When the storage battery is charged with the electric power generated by the solar battery in response to sunlight, and when the ambient illuminance is detected by an optical sensor and it is detected that the illuminance falls below a specified value, a light emitter such as an LED In a self-luminous device that is configured to automatically start lighting and control lighting with the power stored in the storage battery, the lighting is detected when the illuminance falls below a specified value. A self-luminous device characterized in that it has a function of measuring the time since the start and automatically turning off when the lighting time exceeds a preset time. In the self-luminous device configured to charge the storage battery with the electric power generated by the solar battery in response to sunlight, and to control the lighting of a light emitting body such as an LED with the electric power stored in the storage battery, an internal clock signal It has a clock function that generates the current date and time by counting the number of times, and sets the lighting time and extinction time from the sunset time and sunrise time of the area set by the date obtained from the clock function. The self-luminous system is characterized in that lighting is controlled by time so that lighting is started when the current time obtained from the clock function is the lighting time and lighting is ended when the current time is the extinguishing time. apparatus. A time width is given to the lighting time to be a lighting time zone, a time width is given to the lighting time to be a lighting time zone, and the light sensor detects lighting environment illuminance during the lighting time zone, or detection The lighting starts when the end time of the lighting time zone is reached, and when the light sensor detects the lighting environment illuminance during the lighting time zone, or at the end time of the lighting time zone without being detected. The self-luminous device according to claim 6, wherein the lighting control is performed so that the lighting is terminated when it reaches. The self-luminous device according to claim 6 or 7, wherein the timepiece function is a radio timepiece that can be accurately synchronized with a standard time. Between the end of the lighting described above and the start of the next lighting, it has a function of detecting whether the storage battery has been charged with the power generated by the solar battery upon receiving sunlight, and there is no such charging operation The self-luminous device according to any one of claims 6 to 8, wherein the control is performed so that the next lighting is not started in the case of a failure. In a self-luminous device configured to charge a storage battery with power generated by a solar battery in response to sunlight, and to control lighting of a light emitting body such as an LED with the power stored in the storage battery, A self-luminous device having a function of receiving a specific command by voice or the like, and capable of changing an internal setting value and a lighting pattern by receiving the specific command. 11. The specific command includes an emergency warning signal broadcasted for an earthquake warning, a tsunami warning instruction, or an evacuation instruction in the event of a disaster, or a radio signal linked to the emergency warning signal. A self-luminous device as described in 1. The lighting pattern is changed by changing the lighting, blinking, or lighting color of the luminous body for daytime or nighttime for the purpose of preventing entry into a dangerous area or guiding to a safe area. The self-luminous device according to claim 10 or 11.

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