CN203851325U - An LED street lamp and an LED street lamp monitor system based on a sensor network - Google Patents
An LED street lamp and an LED street lamp monitor system based on a sensor network Download PDFInfo
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- CN203851325U CN203851325U CN201420111690.3U CN201420111690U CN203851325U CN 203851325 U CN203851325 U CN 203851325U CN 201420111690 U CN201420111690 U CN 201420111690U CN 203851325 U CN203851325 U CN 203851325U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model provides an LED street lamp comprising an LED lamp array, a drive circuit carrying out dot matrix type lightening control on the LED lamp array, a clock chip providing clock signals, an illumination detection circuit module, a temperature detection circuit module, a pyroelectric infrared sensor, a microprocessor, a memory connected with the microprocessor and a switch power supply module supplying electric power. The utility model also provides an LED street lamp monitor system based on a sensor network. The LED street lamp monitor system based on the sensor network comprises a monitor host machine and nodes composed of a plurality of LED street lamps. The monitor host machine and the nodes together form a chain-shaped network. According to the utility model, brightness and illumination beginning time of the LED street lamps are controlled according to acquired data of illumination, time, temperature, etc.; energy saving purposes of illumination according to needs are realized; temperatures in lampshades can be detected; the lamp arrays can be protected; and LED usage life can be prolonged.
Description
Technical field
The utility model relates to LED street lamp and LED supervisory control system, relates in particular to a kind of LED Street Lamp Monitor System based on sensor network.
Background technology
Highway and city street lamp illumination are requisite communal facilitys in people's daily life and road traffic, and the application of LED aspect road lighting also receives much attention.But, from high-power LED street lamp application practice aspects such as urban look lamp, street lighting lamp, highway lighting lamp, tunnel illuminating lamps, also there are some FAQs in high-power LED street lamp application, such as: street lamp can only rely on luminous intensity and the ambient brightness of the interior overall light on and off of section at a fixed time of artificial or simple timer, street lamp not to possess relevance etc.
Chinese Patent Application No. is 201310194108.4, patent name is a kind of for the patent documentation of " a kind of LED intelligent control system and method thereof " discloses to be possessed according to the method for the parameter adjusting brightness of LED lamps values such as ambient brightness, the method utilizes parameter sensors to external environment condition image data, and regulate LED brightness by data, from brightness angle, solve the power saving of illumination as required, but such scheme is only set about from brightness, can not be according to the variation of external environment condition, dynamic adjustments lighting hours and brightness of illumination.Therefore, need a kind of LED street lamp badly, not only can regulate according to external environment condition the brightness of LED lamp illumination, and can dynamic adjustments LED lighting hours.
Aspect system monitoring, existing system can not be fed back street lamp information in time, usually causes the street lamp of certain street lamp to damage, and can not get for a long time maintenance.Existing communication system adopts two-stage or tertiary structure mostly, requires all street lamps directly to communicate by letter with master controller, does not consider the intercommunication mutually between street lamp, can not realize telecommunication.Therefore need complete street lamp and supervisory control system to address the above problem, this is also the development trend of LED application.
Utility model content
The technical problems to be solved in the utility model is: LED street lamp and a kind of illumination monitoring system that can carry out telecommunication and accurately locate abort situation that a kind of energy dynamic adjustments lighting hours and brightness of illumination are provided.
The technical scheme that the utility model solves this technical problem employing is:
A kind of LED street lamp, comprises LED lamp array; This LED lamp array is carried out to dot matrix and light the drive circuit of control; The clock chip of clock signal is provided; Luminance detection circuit module, containing being useful on the light sensor that gathers ambient light illumination, so that illumination intensity signal to be provided; Temperature sensing circuit module, contains the temperature sensor that gathers light fixture self temperature, so that temperature signal to be provided; Pyroelectric infrared sensor and the microprocessor being connected with described clock chip, luminance detection circuit module and temperature sensing circuit module; The memory being connected with described microprocessor and the switch power module that supply of electric power is provided.
Wherein, microprocessor is also connected with drive circuit, LED lamp array is carried out to switch and the luminance dynamic control in different time points according to the clock signal, illumination intensity signal and the temperature signal that receive by drive circuit.
Luminance detection circuit module comprises light sensor, light sensor gathers ambient light illumination and zooms into voltage signal output through signal condition and linearity, in microprocessor by fitting function and digital filtering technique, draw ambient light illumination value, now, every the double environment brightness value that reads of set time, this set time can be 10 minutes, 30 minutes etc., then the numerical value this being obtained for twice compares, if difference is less than preset difference value, photosensitive mark position 1, otherwise again read brightness value.
Whether clock chip enters default lighting time section for monitoring system real-time clock, if so, lighting time mark position 1, and this default lighting time can be set as approaching predetermined lighting time approximately about 1 hour.
Temperature sensing circuit module comprises temperature sensor, temperature sensor gathers street lamp self temperature, if lamp body temperature is lower than systemic presupposition temperature, temperature mark position 1, wherein systemic presupposition temperature is the highest safe working temperature of street lamp, if higher than systemic presupposition temperature, just cannot guaranteeing LED street lamp, street lamp self temperature normally works, now temperature mark position 0.
Put 1 when photosensitive flag bit, time tag position, temperature flag bit simultaneously, turn on lamp battle array, and record current brightness value.
Further, street lamp arranges multiple photosensitive fragmentation threshold, and the brightness of street lamp is set according to photosensitive fragmentation threshold.
Preferably, wherein photosensitive fragmentation threshold is set to respectively 3.2V～3.4V, 2.8V～3.1V, 1.4V～2.7V, 0V～1.3V, corresponding bright light rank be respectively entirely go out, 1/3 lamp battle array is bright, 1/2 lamp battle array is bright, Quan Liang.
Further, drive circuit comprises PWM light-adjusting module, utilizes PWM light-adjusting module dimming function according to the brightness of illumination intensity signal control LED lamp battle array.PWM, i.e. pulse modulation, adopts adjustment pulse duty factor to reach and adjusts voltage, electric current, power, adopts PWM light modulation can control in continuous approximation brightness, and compared with other conventional light modulation mechanism, PWM dimming function can make the brightness ratio of lamp more even.
As the improvement of the present embodiment, described PWM dimming function is also according to the brightness of street lamp temperature value control lamp battle array, if when temperature sensor detects lampshade temperature higher than preset temperature threshold value, call PWM function, turn down the brightness of LED lamp battle array, reduce thereby reduce street lamp internal temperature, guarantee that LED street lamp normally works.As being complete when bright when bright light rank now, temperature sensor detects that street lamp temperature now has exceeded systemic presupposition temperature, if now make street lamp entirely go out, can affect the sight line of passerby and driving vehicle, causes danger; If continue to keep complete bright state, LED street lamp probably cannot long working, causes street lamp to damage, inadvisable equally; Now can select to reduce to when bright light rank that 1/3 lamp battle array is bright or 1/2 lamp battle array is bright, can effectively reduce the probability that street lamp damages, not affect the sight line of passerby and driving vehicle simultaneously.
As the improvement of the present embodiment, PWM light-adjusting module can also comprehensive illumination intensity signal and the brightness of street lamp temperature signal adjustment array.
Further, described LED lamp battle array adopts 64 highlighted LED of 8 row * 8 row to make light emitting source, and Drive of row and column all uses 74HC595 serial input-parallel pio chip.
Record the initial time of wherein said photosensitive mark position 1, if continuous two days or two days the above initial time difference are lower than preset value, using its average time as new scheduled start tine.
Preferably, record the initial time of wherein said photosensitive mark position 1, if wherein continuous 7 days described initial time difference is lower than preset value, using its average time as new scheduled start tine.
A LED Street Lamp Monitor System based on sensor network, comprises monitoring host computer and multiple node being made up of the LED street lamp based on sensor network, described monitoring host computer and node composition chain-shaped network, and the wherein said LED street lamp based on sensor network comprises:
Described LED lamp array is carried out to dot matrix and light the drive circuit of control;
The clock chip of clock signal is provided;
Luminance detection circuit module, containing being useful on the light sensor that gathers ambient light illumination, so that illumination intensity signal to be provided;
Temperature sensing circuit module, contains the temperature sensor that gathers light fixture self temperature, so that temperature signal to be provided;
Pyroelectric infrared sensor;
The microprocessor being connected with described clock chip, luminance detection circuit module and temperature sensing circuit module;
The memory being connected with described microprocessor;
The switch power module of supply of electric power is provided.
Wherein, microprocessor is also connected with drive circuit, LED lamp array is carried out to switch and the brilliance control in different time points according to the clock signal, illumination intensity signal and the temperature signal that receive by drive circuit; And radio-frequency communication module, realize the relay communication between node, the some node compositions bunch within the scope of radio communication, are wherein a bunch head near the node of sink node or telegon.
Node also comprises: for verifying legitimacy and judging that the packet of data type receives decomposing module, data processing module, forwarding addressed module, forwards authentication module and tackles the emergency processing module of anomalous weather.
Further, system also comprises dormancy mechanism module, makes inoperative street lamp in resting state.
Further, system also comprises addressable control module, and in the time having street lamp to break down, contiguous lantern festival automatic fault-reporting street lamp, to control centre, is located abort situation.
The beneficial effects of the utility model are: the utility model, according to brightness and time light on of the Data Control LED street lamps such as the illumination collecting, time, temperature, has been realized the energy-conservation object of " illumination as required " effectively; Can detect the temperature of lampshade inside, guard lamp battle array, extends LED useful life; Supervisory control system adopts chain network simultaneously, can effectively realize telecommunication and accurately locate abort situation.The stability that has met LED Street Lamp Monitor System, has realized again energy-conservation object.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1: the node hardware circuit composition frame chart of sensor network;
Fig. 2: lamp battle array dynamic prediction illumination flow chart.
Embodiment
First, the utility model proposes a kind of LED street lamp.
Street lighting function realizes by LED lamp battle array, LED lamp battle array is used lattice Control, can control very easily the light on and off of each lamp, realize the control model of any brightness, as all bright, all go out, odd number is bright, even number is bright and circulation light on and off LED isotype, LED is used more even, can extend the service time of street lamp.
Figure 1 shows that the node hardware circuit composition frame chart of sensor network, as can be seen from the figure, street lamp comprises LED lamp array (not shown) and drive circuit 1 thereof, clock chip 2, luminance detection circuit module 3, containing being useful on the light sensor that gathers ambient light illumination, temperature sensing circuit module 4, contains the temperature sensor that gathers light fixture self temperature; Pyroelectric infrared sensor 9, pyroelectric infrared sensor 9 can detect within the scope of lamp lighting, whether there is pedestrian; The microprocessor 5 being connected with described clock chip 2, luminance detection circuit module 3 and temperature sensing circuit module 4; The memory 8 being connected with described microprocessor 5 and the switch power module 7 that supply of electric power is provided.
Street lamp adopts self adaptation dynamic prediction lighting technology, and with reference to figure 2, this technology comprises the following steps:
Utilize brightness and the lighting hours of photosensitive, time and three constraints control lamp battle arrays of temperature.Photosensitive aspect: light sensor gathers ambient light illumination and zooms into voltage signal output through signal condition and linearity, in microprocessor 5 by fitting function and digital filtering technique, draw ambient light illumination value, now, every the double environment brightness value that reads of set time, this set time can be 10 minutes, 30 minutes etc., then the numerical value this being obtained for twice compares, if difference is less than preset difference value, photosensitive mark position 1, otherwise again read brightness value; Time aspect, whether clock chip 2 enters default lighting time section for monitoring system real-time clock, if, lighting time mark position 1, otherwise, again read the time, here a bit, this default lighting time can be set as approaching predetermined lighting time approximately about 1 hour in explanation; Temperature aspect, temperature sensor gathers street lamp self temperature, if lamp body temperature is lower than systemic presupposition temperature, temperature mark position 1, wherein systemic presupposition temperature is the highest safe working temperature of street lamp, normally works if street lamp self temperature higher than systemic presupposition temperature, just cannot be guaranteed LED street lamp.Put 1 when three flag bits simultaneously, turn on lamp battle array.
Street lamp is in the time using first or after resetting, and a lighting time can be preset or manually set to system automatically.After this all can record the initial time of photosensitive mark position 1 every day, if more than two days or two days in the time, record photosensitive mark position 1 initial time difference lower than certain preset value, be set as new default lighting time, realize time light on of dynamically adjusting.Preset value can be 30 minutes or 1 hour, the object of setting preset value is to prevent that indivedual meteorological reasons from causing the mistake that predicts the outcome, for example, when certain day is because weather is former thereby a hour light is dimmed in advance, in the time of dynamic prediction lighting time after this, if on this basis, may predict in advance, cause waste; Otherwise, if postpone one hour because weather is fine, in the time of dynamic prediction lighting time after this, if on this basis, may predict hysteresis, cause passerby's sight line to hinder, cause danger.
As further improvement of this embodiment, according to time light on of the lighting hours section dynamic prediction next stage in 7 days.
If allow to turn on lamp battle array, the photosensitive fragmentation threshold pre-setting according to system regulates the brightness of LED lamp battle array, and in the present embodiment, LED lamp battle array adopts 8 row * 8 to be listed as totally 64 highlighted LED of white as light emitting source, the row brightness adjusting that can light by LED is set.Photosensitive fragmentation threshold is as shown in table 1.
The photosensitive fragmentation threshold of table 1
The voltage range of the light intensity of photosensitive survey is 0～3.4V, and maximum 3.4V represents that light intensity is the strongest.In 0～1.3V, entirely bright is bright 8 rows, bright 6 rows in 1.4～2.7V, and in 2.8～3.1V, bright 3 arrange, and bright 0 row of 3.2～3.4V does not work entirely.
As the improvement of the present embodiment, drive circuit 1 also comprises PWM light-adjusting module, and wherein the bright several rows of LED lamp battle array all adopt the control of PWM light-adjusting module.
PWM dimming function is also according to the brightness of lamp battle array described in the control of street lamp temperature value, if when temperature sensor detects lampshade temperature higher than preset temperature threshold value, call PWM function, turn down the brightness of LED lamp battle array, reduce thereby reduce street lamp internal temperature, guarantee that LED street lamp normally works.As being complete when bright when bright light rank now, temperature sensor detects that street lamp temperature now has exceeded systemic presupposition temperature, if now make street lamp entirely go out, can affect the sight line of passerby and driving vehicle, causes danger; If continue to keep complete bright state, LED street lamp probably cannot long working, causes street lamp to damage, inadvisable equally.The row brightness adjusting lighting by adjusting LED in foregoing description, brightness regulates to integral illumination can also to control the brightness of each LED by PWM, in addition, it is more even for LED is used, there is aging phenomenon in the LED lamp that prevents some higher-frequency use, can also carry out brightness regulation with the LED lamp of fixed qty in Else Rule uniform design LED lamp battle array in advance by PWM control mode.
In a preferred embodiment, in order to ensure the normally luminous of LED, Drive of row and column all uses 74HC595 serial input-parallel pio chip.
It should be noted that, it is only for the clearer embodiment of specifically describing that above-mentioned LED lamp battle array adopts 8 row * 8 to be listed as totally 64 highlighted LED of white, similarly, adopting 74HC595 serial input-parallel pio chip is also an example of the present utility model, not as restriction of the present utility model.
The utility model also proposes a kind of LED Street Lamp Monitor System based on sensor network according to above-described street lamp.
Native system is realized illumination functions by above-mentioned street lamp, adopts token route technology, according to the actual geographic distribution situation of road, has proposed a kind of token group of routes net mode that is simple and easy to realization, has ensured the robustness of network.System comprises monitoring host computer and multiple node being made up of the LED street lamp based on sensor network, monitoring host computer and node composition chain-shaped network, the wherein said LED street lamp based on sensor network comprises: LED lamp array (not shown) and drive circuit 1 thereof, clock chip 2, luminance detection circuit module 3, containing being useful on the light sensor that gathers ambient light illumination; Temperature sensing circuit module 4, contains the temperature sensor that gathers light fixture self temperature; Pyroelectric infrared sensor 9; The microprocessor 5 being connected with described clock chip 2, luminance detection circuit module 3 and temperature sensing circuit module 4; The memory 8 being connected with described microprocessor 5 and the switch power module 7 that supply of electric power is provided.
Relay communication between street lamp and street lamp in system, each street lamp need to serve as the effect of router.As shown in Figure 1, node also comprises radio-frequency communication module 6, one bunch of several node composition within the scope of radio communication, and selection is a bunch head near the node of sink node or telegon, in bunch, member can gather street lamp parameters, and data, by single-hop or multi-hop pattern, are sent to a bunch head, leader cluster node is transferred to Sink node or telegon by after the information fusion of collecting, to reduce the energy consumption of redundant data in transmission.Meanwhile, Sink node or telegon can be passed to the instruction of control centre relevant bunch head, member in bunch head sends to control command bunch again, thus resolve instruction and carry out corresponding order.Each node receives packet and packet is decomposed according to protocol frame structure, verifies its legitimacy, then judges the type (being broadcast communication or the communication of single channel lamp) of ID packet, according to different data, selects different operations.
In a preferred embodiment, node also comprises: for verifying legitimacy and judging that the packet of data type receives decomposing module, data processing module, forwarding addressed module, forwards authentication module and tackle the emergency processing module of anomalous weather, each module workflow is as follows:
(1) packet receives decomposing module: street-lamp node receives packet and packet is decomposed according to frame structure, verify its legitimacy, then judge the type of packet---be broadcast, multicast or unicast communication, if broadcast and multicast, street-lamp node sends data with radio broadcasting form.If unicast mode, street-lamp node first checks whether the destination address of information is the network address of self, and if so, information will can not be forwarded, otherwise information is transmitted to adjacent node.
(2) data processing module: in the time that street lamp receives valid data, need to judge that the destination address in this packet is node self or other nodes.If the network address of destination address and node self conforms to, carry out this locality and submit to; Otherwise packet is forwarded; When destination address is a broadcast address, information is unconditionally forwarded, simultaneously the instruction in executing data bag.
(3) forward addressed module: when node receives after packet, source data address and destination address are obtained in parsing, mate with this node address simultaneously, if identical, not forwarding data bag, if not this node address, adopt " token " function to forward packet, now, packet also can be received by node before, and node before will be abandoned the forwarding work to packet, to prevent that packet from carrying out unlimited forwarding in network internal, both complete the aeoplotropism forwarding work of packet, saved again energy.
(4) forward authentication module: before forwarding addressing, must carry out verification to packet, native system adopts CRC check mode, in the time that data verification is errorless, just forward,, otherwise packet is abandoned, the broadcast source of request data package is retransmitted.
(5) emergency processing module: when not meeting lighting time mark OB=1, but photosensitive mark position LB=1, temperature mark position TB=1, show by day not should bright light time period, Changes in weather abnormal situations such as (for example overcast) It's raining in torrents, the relevant bunch head in sensor network sends " consulting " information by active to Surveillance center, need bright light if Surveillance center confirms certain region, directly send instruction (containing street lamp address set) bright light on request.
Supervisory control system comprises dormancy mechanism, and work street lamp is in state of activation, and other inoperative street lamps are in resting state, and realizing " illumination as required, as required communication " needs just illumination of illumination, needs just communication of communication.Whole system, in low power consumpting state, realizes energy-efficient.
Addressable control technology, No. ID of utilizing street lamp, realization can be inquired about each street lamp state easily, carries out state feedback.In the time having street lamp to be out of order, other contiguous street lamps meeting automatic fault-reporting street lamp information, to control centre, can accurately be located abort situation.Not only can realize disconnected cable and detect, the fault (as lamp battle array fault, photosensitive fault) of street lamp self reason also can be reported to control centre.
Describe specific embodiment of the utility model above in detail.Under the prerequisite without prejudice to thought of the present utility model and scope, can make various amendments and interpolation.In addition, what in literary composition, describe is only the illustrative application of application the utility model thought, and therefore, describe is in order to illustrate herein, and not as restriction scope of the present utility model.
Claims (5)
1. a LED street lamp, comprises LED lamp array, it is characterized in that, also comprises:
Described LED lamp array is carried out to dot matrix and light the drive circuit of control (1);
The clock chip (2) of clock signal is provided;
Luminance detection circuit module (3), containing being useful on the light sensor that gathers ambient light illumination, so that illumination intensity signal to be provided;
Temperature sensing circuit module (4), contains the temperature sensor that gathers light fixture self temperature, so that temperature signal to be provided;
Pyroelectric infrared sensor (9);
The microprocessor (5) being connected with described clock chip (2), luminance detection circuit module (3) and temperature sensing circuit module (4);
The memory (8) being connected with described microprocessor (5);
The switch power module (7) of supply of electric power is provided;
Wherein, described microprocessor (5) is also connected with described drive circuit (1), described LED lamp array is carried out to switch and the luminance dynamic control in different time points according to the clock signal, illumination intensity signal and the temperature signal that receive by described drive circuit (1).
2. LED street lamp according to claim 1, it is characterized in that: described drive circuit (1) comprises for according to the PWM light-adjusting module of the brightness of lamp battle array described in illumination intensity signal and/or the control of street lamp temperature signal, wherein PWM light-adjusting module carries out brightness regulation with reference to default photosensitive fragmentation threshold.
3. LED street lamp according to claim 1, is characterized in that: wherein said LED lamp battle array adopts 64 highlighted LED of 8 row * 8 row as light emitting source, and drive circuit (1) adopts 74HC595 serial input-parallel pio chip.
4. the LED Street Lamp Monitor System based on sensor network, it is characterized in that, comprise monitoring host computer and multiple node being formed by the LED street lamp based on sensor network, described monitoring host computer and node composition chain-shaped network, the wherein said LED street lamp based on sensor network comprises:
Described LED lamp array is carried out to dot matrix and light the drive circuit of control (1);
The clock chip (2) of clock signal is provided;
Luminance detection circuit module (3), containing being useful on the light sensor that gathers ambient light illumination, so that illumination intensity signal to be provided;
Temperature sensing circuit module (4), contains the temperature sensor that gathers light fixture self temperature, so that temperature signal to be provided;
Pyroelectric infrared sensor;
The microprocessor (5) being connected with described clock chip (2), luminance detection circuit module (3) and temperature sensing circuit module (4);
The memory (8) being connected with described microprocessor (5);
The switch power module (7) of supply of electric power is provided;
Wherein, described microprocessor (5) is also connected with drive circuit (1), described LED lamp array is carried out to switch and the brilliance control in different time points according to the clock signal, illumination intensity signal and the temperature signal that receive by described drive circuit (1); And
Be connected to provide the radio-frequency communication module (6) of chain networking capability with described microprocessor (5), realize the relay communication between node.
5. LED Street Lamp Monitor System according to claim 4, it is characterized in that, describedly also comprised by the LED street lamp based on sensor network: for verifying legitimacy and judge that the packet of data type receives decomposing module, data processing module, forwarding addressed module, forwards authentication module and tackles the emergency processing module of anomalous weather.
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| CN104486875A (en) * | 2014-12-01 | 2015-04-01 | 苏州市欧博锐自动化科技有限公司 | Street lamp control method based on ZigBee |
| CN104837285A (en) * | 2015-06-01 | 2015-08-12 | 北京岩与科技有限公司 | Method and remote control terminal for realizing wireless fine illumination control |
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| CN104837285A (en) * | 2015-06-01 | 2015-08-12 | 北京岩与科技有限公司 | Method and remote control terminal for realizing wireless fine illumination control |
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