CN106572560A - Urban lighting control system based on current detection circuit - Google Patents
Urban lighting control system based on current detection circuit Download PDFInfo
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- CN106572560A CN106572560A CN201610966390.7A CN201610966390A CN106572560A CN 106572560 A CN106572560 A CN 106572560A CN 201610966390 A CN201610966390 A CN 201610966390A CN 106572560 A CN106572560 A CN 106572560A
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- 238000001514 detection method Methods 0.000 title claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 238000002955 isolation Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 238000005286 illumination Methods 0.000 claims description 15
- 238000012545 processing Methods 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 9
- 230000005693 optoelectronics Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 15
- 230000005611 electricity Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 206010039203 Road traffic accident Diseases 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 230000002354 daily effect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/20—Controlling the colour of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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Abstract
The invention discloses an urban lighting control system based on a current detection circuit. The system comprises a current detection circuit, a brightness detection circuit, a video sensor, a central processor, a power regulation circuit, an LED driver module, an LED light source, a time relay, a self-cleaning device, a wireless communication module, and a monitoring terminal. The power regulation circuit includes an AC input circuit, a filter and rectifier circuit, an active power factor correction circuit, an isolation transformer, an optoelectronic isolator and a constant current driver. The current detection circuit includes first to fourth resistors, a slide rheostat, first to fourth diodes, a first capacitor, a second capacitor, an NPN triode, a PNP triode, a transformer, and a relay. According to the invention, the power supply is cut off when there is over current in the current detection circuit, lamps can be turned on/off automatically according to the ambient light, and the self-cleaning device can be started at regular time under control of the time relay to clean the dust on street lamps.
Description
Technical Field
The invention relates to the technical field of urban lighting, in particular to an urban lighting control system based on a current detection circuit.
Background
With the rapid development of urban lighting construction, although the urban lighting system provides convenient life for people and creates urban livable environment, a large amount of consumed power resources cannot be ignored, and in order to relieve the contradiction between the two, in the development process of a smart city, a lighting information management system with lighting on demand and intelligent management is generated, so that the system plays an effective role in improving the lighting rate of the whole urban lighting, saving energy, improving the investment environment, reducing traffic accidents, guaranteeing personal safety, stabilizing social security and the like.
Urban road lighting is an important infrastructure of a city, along with the development of urban construction, the urban lighting construction focuses more and more on the image of the city, and the monitoring degree of urban street lamp lighting also becomes one of important marks of the city. It reflects the spiritual outlook of a modern city and is an image representative of a city. Plays an important role in city public security, city beautification, night traffic and city civilization construction, and provides important guarantee for the life and economic activities of urban people. The street lamp control operation is realized by controlling the power supply to the street lamp, the basic power supply loop of the street lamp illumination is the transformer, the power supply distribution cabinet, the cable to the lamp post and then to the street lamp on the lamp post, and the control mode is to control the on-off of the alternating current contactor in the power supply distribution cabinet to realize the control of the switch lamp.
The street lamp is used as a main component of city lighting engineering and plays a very important role at night. The street lamp not only provides the night traffic safety illumination, but also is a necessary facility for maintaining the night public security, and the level of urban modernization can be seen from the quality of the street lamp facility, so that the construction of the street lamp facility in all cities in the world is very important. With the great rise of energy price in recent years, the huge electricity expense of the street lamps also becomes a great burden for local governments, and the shortage of electricity and the backward illumination become bottlenecks which restrict the economic development. In recent years, the problem of lighting power saving is listed as another important power saving project besides power saving, which undoubtedly has very important significance for promoting the development of power-saving operation.
Urban street lighting is an indispensable public facility in people's daily life. The power consumption of street lamp illumination accounts for about 15% of the total power consumption, and various problems caused by power shortage can not be solved all over the country. In the face of the situation of power supply shortage, the street lamp patrol is a work which needs to consume a large amount of manpower for municipal departments, and various temporary emergency electricity-saving measures are widely adopted: the lamp is turned off at night intervals, the time of turning on and off the street lamps is adjusted, landscape lighting is turned off in the days with intense electricity consumption, and the like, when the electricity consumption peak passes, the measures can be restrained at a high position, and all the measures can be restarted when the next electricity consumption peak comes. The electricity-saving measures can relieve the power shortage and bring the waste of resources and the negative influence on the daily life of people. The best and effective method for relieving the power utilization shortage is to implement intelligent management on power utilization, reduce waste and make the best use of electricity at every degree.
At present, most of traditional street lamp switches are controlled by time or manual work, which brings inconvenience in the actual management process. Due to the uncertainty of the external environment, the situation that when a street lamp is turned on at night, the day is not dark, or when the street lamp is turned on in the morning, the street lamp is still turned on and serious electric energy waste is caused can be frequently caused through time control. The sunshine time is short in winter, the street lamp is not turned on after the sunshine time is dark, and the street lamp is turned off after the street lamp is not turned on in the morning, so that the traveling of pedestrians and vehicles is influenced.
And if the traditional street lamp is controlled manually, workers need to patrol the street lamp field every day, and the workload of urban traffic maintenance is too large. The public security problem of roads is also increasingly serious, and often some large traffic and public security problems are difficult to solve due to the fact that no real video data exists. On the other hand, the lighting rate in urban public lighting becomes a sensitive problem which is very concerned by people, and a patrol method is adopted in a general place, so that the working hours are wasted, and the damage condition cannot be found in time.
The street lamp is one of important municipal facilities in cities, and is an important tool for meeting the traveling requirements of people and providing a lighting function for roads. Haze and dust can seriously affect the lighting effect of the street lamp, and potential safety hazards are brought to the trip of people. Therefore, street lamp cleaning is an important work for environmental sanitation. The street lamp cleaning method adopts a vehicle lifting device and manual operation of sanitation workers, the manual operation does not have a special cleaning tool, and a combination mode of a long rod and a cleaning cloth is generally adopted. Street lamps belong to urban public facilities and are generally located outdoors. The outer luminous cover of street lamp holder is owing to long-term the use, including dust, dust etc. in the air for the surface of luminous cover can be covered by a large amount of dust, if can not obtain timely washing, and the luminousness of street lamp lamps and lanterns can descend, influences the effect of street lamp, causes the traffic accident very easily. The manual cleaning of the street lamps on the urban roads is a huge project, and the street lamps are generally higher in position, are very inconvenient to clean and require a large amount of manpower. Most of the existing lampshade of the LED street lamp does not have a cleaning structure, and the lampshade can be gradually polluted in the using process, so that the illumination intensity of the LED street lamp is reduced, and hidden dangers are brought to road traffic safety.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an urban illumination control system based on a current detection circuit, which can cut off a power supply when overcurrent, automatically turn on and turn off a lamp according to the ambient brightness and can control a self-cleaning device to be turned on at regular time through a time relay so as to achieve the aim of cleaning dust on a street lamp.
The invention adopts the following technical scheme for solving the technical problems:
the urban illumination control system based on the current detection circuit comprises the current detection circuit, a brightness detection circuit, a video sensor, a central processing unit, a power regulation circuit, an LED driving module, an LED light source, a time relay, a self-cleaning device, a wireless communication module and a monitoring terminal; the power regulating circuit comprises an AC input circuit, a filtering and rectifying circuit, an active power factor correcting circuit, an isolation transformer, a photoelectric isolator and a constant current driver; wherein,
the system comprises a current detection circuit, a brightness detection circuit, a video sensor, a time relay, a self-cleaning device, a photoelectric isolator and a wireless communication module, wherein the current detection circuit, the brightness detection circuit, the video sensor, the time relay, the self-cleaning device, the photoelectric isolator and the wireless communication module are respectively connected with a central processing unit;
the current detection circuit comprises first to fourth resistors, a slide rheostat, first to fourth diodes, a first capacitor, a second capacitor, an NPN triode, a PNP triode, a transformer and a relay; one end of a first resistor is connected with alternating current and one end of a primary coil of a transformer respectively, the other end of the first resistor is connected with the other end of the primary coil of the transformer and one end of a normally open contact of a relay respectively, the other end of the normally open contact of the relay is connected with alternating current, one end of a secondary coil of the transformer is connected with one end of a slide rheostat, the other end of the secondary coil of the transformer is connected with the other end of the slide rheostat, a sliding end of the slide rheostat is connected with one end of a second resistor, the other end of the second resistor is connected with a negative electrode end of a first diode and a base electrode of an NPN triode respectively, a positive electrode end of the first diode is connected with an emitting electrode of the NPN triode, a negative electrode end of a first capacitor, a positive electrode end of a fourth diode, one end of the relay coil, One end of the fourth resistor is connected respectively, the other end of the fourth resistor is connected with the base of the PNP triode, the collector of the PNP triode is connected with the positive end of the third diode, the negative end of the fourth diode and the other end of the relay coil respectively, the emitter of the PNP triode is connected with the negative end of the third diode and the negative end of the second triode respectively, the positive end of the second triode is connected with one end of the third resistor, the other end of the third resistor is connected with the positive end of the second capacitor and the direct-current power supply respectively, and the negative end of the second capacitor is connected with the ground.
As a further optimization scheme of the urban illumination control system based on the current detection circuit, the self-cleaning device comprises a water collector and a controller which are positioned at the top of a street lamp, and a spray head which is arranged on a street lamp pole, wherein the spray head is positioned at the lower side of the street lamp, a scrubber is arranged at the lower part of a light-emitting cover of the street lamp, the water collector is connected with the spray head through a water pipe, a water level sensor is arranged in the water collector and is connected with the controller, and the spray head and the scrubber are respectively connected with the controller.
As a further optimization scheme of the urban lighting control system based on the current detection circuit, the water collector is a water collection tank provided with water leakage holes.
As a further optimization scheme of the urban illumination control system based on the current detection circuit, the scrubber is a brush or a scraping strip adhesive tape.
As a further optimization scheme of the urban lighting control system based on the current detection circuit, the wireless communication module comprises Wi-Fi equipment.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
(1) the current detection circuit is based on the fact that a power supply is cut off when overcurrent occurs, the lamp is automatically turned on and off when the ambient brightness reaches a set lamp turning-on value or a set lamp turning-off value, and the brightness value of the turned-on and turned-off lamp can be reset according to needs, so that the street lamp can adapt to the change of the environment, the waste of electric energy is reduced, and the service life of the street lamp is prolonged;
(2) the street lamp and line service condition can be monitored in real time, and once the street lamp has a problem, the specific position of the street lamp or line with the problem is displayed on the management platform in time, so that the monitoring and timely finishing or changing of workers are facilitated, the speed of road street lamp fault processing is increased, and the maintenance cost is reduced; under special conditions, a control person can skip the control mechanism to manually control the street lamp at any time, so that automatic and manual control switching is realized, the strain capacity is improved, and potential safety hazards are reduced;
(3) video information of street lamp illumination can be detected through video monitoring, so that workers can conveniently overhaul; the traffic and public security problems of the monitored road can be monitored, and when major traffic accidents and road public security accidents occur, favorable evidences can be provided for corresponding public security departments, so that the accident handling efficiency of the public security departments is improved; the theft of cables and road facilities can be avoided through video monitoring;
(4) the self-cleaning device can be controlled to be started at regular time through the time relay so as to achieve the purpose of cleaning dust on the street lamp; the water collector is also used for collecting rainwater, and the rainwater in the water collector is led into the spray head below the street lamp by the water pipe, so that the light-emitting cover is automatically washed by the collected rainwater; street lamp cleaning device, simple structure, convenient operation can clean the street lamp by the efficient, has simultaneously saves time, laborsaving advantage.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a circuit diagram of the current detection circuit.
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings:
as shown in fig. 1, which is a schematic structural diagram of the present invention, a current detection circuit-based urban illumination control system includes a current detection circuit, a brightness detection circuit, a video sensor, a central processing unit, a power regulation circuit, an LED driving module, an LED light source, a time relay, a self-cleaning device, a wireless communication module, and a monitoring terminal; the power regulating circuit comprises an AC input circuit, a filtering and rectifying circuit, an active power factor correcting circuit, an isolation transformer, a photoelectric isolator and a constant current driver; wherein,
the system comprises a current detection circuit, a brightness detection circuit, a video sensor, a time relay, a self-cleaning device, a photoelectric isolator and a wireless communication module, wherein the current detection circuit, the brightness detection circuit, the video sensor, the time relay, the self-cleaning device, the photoelectric isolator and the wireless communication module are respectively connected with a central processing unit;
fig. 2 is a circuit diagram of a current detection circuit including first to fourth resistors R1-R4, a sliding varistor R5, first to fourth diodes D1-D4, a first capacitor C1, a second capacitor C2, an NPN transistor Q1, a PNP transistor Q2, a transformer TR1, and a relay KA; one end of a first resistor is connected with alternating current and one end of a primary coil of a transformer respectively, the other end of the first resistor is connected with the other end of the primary coil of the transformer and one end of a normally open contact of a relay respectively, the other end of the normally open contact of the relay is connected with alternating current, one end of a secondary coil of the transformer is connected with one end of a slide rheostat, the other end of the secondary coil of the transformer is connected with the other end of the slide rheostat, a sliding end of the slide rheostat is connected with one end of a second resistor, the other end of the second resistor is connected with a negative electrode end of a first diode and a base electrode of an NPN triode respectively, a positive electrode end of the first diode is connected with an emitting electrode of the NPN triode, a negative electrode end of a first capacitor, a positive electrode end of a fourth diode, one end of the relay coil, One end of the fourth resistor is connected respectively, the other end of the fourth resistor is connected with the base of the PNP triode, the collector of the PNP triode is connected with the positive end of the third diode, the negative end of the fourth diode and the other end of the relay coil respectively, the emitter of the PNP triode is connected with the negative end of the third diode and the negative end of the second triode respectively, the positive end of the second triode is connected with one end of the third resistor, the other end of the third resistor is connected with the positive end of the second capacitor and the direct-current power supply respectively, and the negative end of the second capacitor is connected with the ground.
The self-cleaning device comprises a water collector and a controller which are positioned at the top of the street lamp, and a spray head arranged on a street lamp pole, wherein the spray head is positioned at the lower side of the street lamp, a scrubber is arranged at the lower part of a light-emitting cover of the street lamp, the water collector is connected with the spray head through a water pipe, a water level sensor is arranged in the water collector and is connected with the controller, and the spray head and the scrubber are respectively connected with the controller.
The water collector is a water collecting tank provided with water leakage holes. The scrubber is a brush or a scraping piece adhesive tape. The wireless communication module comprises a Wi-Fi device.
The current detection circuit is used for outputting detected current information to the central processing unit, obtaining a current value signal after processing the current information, and cutting off a power supply when overcurrent occurs; the current value signal can also be transmitted to the monitoring terminal by the wireless communication module, and the monitoring terminal can monitor the current information in real time.
The brightness detection circuit is used for transmitting the detected illumination intensity information to the central processing unit, and when the illumination intensity is reduced by a preset threshold value, the street lamp is controlled to be turned on, otherwise, the street lamp is controlled to be turned off;
the video sensor is used for outputting the collected real-time images of the road surface to the central processing unit, and the collected real-time images are processed by the central processing unit and then output and display video information to be transmitted to the monitoring terminal through the wireless communication module, so that the monitoring terminal can monitor the video information transmitted from a remote place in real time through a network.
The street lamps are all provided with self-cleaning devices, and the self-cleaning devices are controlled to be started at regular time through time relays, so that the purpose of cleaning dust on the street lamps is achieved, and the definition of the street lamps is ensured; the monitoring terminal can also send out a cleaning instruction to be transmitted to the central processing unit through the wireless communication module, so that the self-cleaning device is controlled to work.
The monitoring terminal can send a street lamp starting signal to the central processing unit through the wireless communication module, and the PWM signal output end of the central processing unit is connected with the constant current driver through the photoelectric isolator. The maximum power, the minimum power, the delay standby time and the like of the LED light source can be realized through the power regulating circuit by remote setting through a network.
The self-cleaning device can comprise a water collector and a controller which are positioned at the top of a street lamp, and a spray head arranged on a street lamp pole, wherein the spray head is positioned at the lower side of the street lamp, a scrubber is arranged at the lower part of a light-emitting cover of the street lamp, the water collector is connected with the spray head through a water pipe, a water level sensor is arranged in the water collector, the water level sensor is connected with the controller, and the spray head and the scrubber are respectively connected with the controller.
In the rainy days, a water collector positioned at the top of the street lamp collects rainwater; when a water level sensor in the water collector detects that rainwater in the water collector reaches a specified threshold value, a signal is transmitted to a controller, and the controller outputs a control signal to a spray head and a scrubber; the water in the water collector is sprayed to the luminous cover of the street lamp through the water pipe by the spray head, and the scrubber cleans dust on the surface of the luminous cover until no water exists in the water collector or a certain time is cleaned, so that the cleaning work is finished.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all should be considered as belonging to the protection scope of the invention.
Claims (5)
1. A city lighting control system based on a current detection circuit is characterized by comprising a current detection circuit, a brightness detection circuit, a video sensor, a central processing unit, a power regulation circuit, an LED driving module, an LED light source, a time relay, a self-cleaning device, a wireless communication module and a monitoring terminal; the power regulating circuit comprises an AC input circuit, a filtering and rectifying circuit, an active power factor correcting circuit, an isolation transformer, a photoelectric isolator and a constant current driver; wherein,
the system comprises a current detection circuit, a brightness detection circuit, a video sensor, a time relay, a self-cleaning device, a photoelectric isolator and a wireless communication module, wherein the current detection circuit, the brightness detection circuit, the video sensor, the time relay, the self-cleaning device, the photoelectric isolator and the wireless communication module are respectively connected with a central processing unit;
the current detection circuit comprises first to fourth resistors, a slide rheostat, first to fourth diodes, a first capacitor, a second capacitor, an NPN triode, a PNP triode, a transformer and a relay; one end of a first resistor is connected with alternating current and one end of a primary coil of a transformer respectively, the other end of the first resistor is connected with the other end of the primary coil of the transformer and one end of a normally open contact of a relay respectively, the other end of the normally open contact of the relay is connected with alternating current, one end of a secondary coil of the transformer is connected with one end of a slide rheostat, the other end of the secondary coil of the transformer is connected with the other end of the slide rheostat, a sliding end of the slide rheostat is connected with one end of a second resistor, the other end of the second resistor is connected with a negative electrode end of a first diode and a base electrode of an NPN triode respectively, a positive electrode end of the first diode is connected with an emitting electrode of the NPN triode, a negative electrode end of a first capacitor, a positive electrode end of a fourth diode, one end of the relay coil, One end of the fourth resistor is connected respectively, the other end of the fourth resistor is connected with the base of the PNP triode, the collector of the PNP triode is connected with the positive end of the third diode, the negative end of the fourth diode and the other end of the relay coil respectively, the emitter of the PNP triode is connected with the negative end of the third diode and the negative end of the second triode respectively, the positive end of the second triode is connected with one end of the third resistor, the other end of the third resistor is connected with the positive end of the second capacitor and the direct-current power supply respectively, and the negative end of the second capacitor is connected with the ground.
2. The urban illumination control system based on the current detection circuit as claimed in claim 1, wherein the self-cleaning device comprises a water collector and a controller which are located on the top of the street lamp, a nozzle is arranged on the lamp post of the street lamp, the nozzle is located on the lower side of the street lamp, a scrubber is arranged on the lower portion of the light-emitting cover of the street lamp, the water collector is connected with the nozzle through a water pipe, a water level sensor is arranged in the water collector, the water level sensor is connected with the controller, and the nozzle and the scrubber are respectively connected with the controller.
3. The urban lighting control system based on the current detection circuit as claimed in claim 1, wherein the water collector is a water collection tank provided with water leakage holes.
4. The urban lighting control system based on the current detection circuit according to claim 1, wherein the scrubber is a brush or a blade rubber strip.
5. The urban lighting control system based on current detection circuits according to claim 1, wherein the wireless communication module comprises a Wi-Fi device.
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Cited By (1)
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CN114596762A (en) * | 2022-03-03 | 2022-06-07 | 华北电力大学 | Power electronic teaching experiment table wiring error checking equipment and method |
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CN203005313U (en) * | 2012-11-17 | 2013-06-19 | 吉林大学 | Adjustable light-dependent control automobile light emitting diode (LED) license plate |
CN104214624A (en) * | 2014-09-29 | 2014-12-17 | 无锡昊瑜节能环保设备有限公司 | Street lamp self cleaning device |
CN204482116U (en) * | 2015-04-09 | 2015-07-15 | 河北工业大学 | Multifunctional city Landscape Lamp |
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