CN211959629U

CN211959629U - Indoor direct-current health-care lighting intelligent control system

Info

Publication number: CN211959629U
Application number: CN202020632994.XU
Authority: CN
Inventors: 洪学远
Original assignee: Hongyang Weiye Photoelectric Technology Suzhou Co ltd
Current assignee: Hongyang Weiye Photoelectric Technology Suzhou Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-17
Anticipated expiration: 2030-04-23

Abstract

The application is suitable for the technical field of illumination, and provides an indoor direct-current healthcare illumination intelligent control system which comprises a control module, a direct-current conversion module, a plurality of direct-current dimming modules, a plurality of constant-current driving modules and a plurality of illumination modules; the input end of the direct current conversion module is used for being connected with an alternating current power supply, the output end of the direct current conversion module is respectively connected with the control module, each constant current driving module and each direct current dimming module, the control module is further connected with all the direct current dimming modules, each direct current dimming module is connected with the corresponding constant current driving module, and each constant current driving module is connected with the corresponding lighting module. The direct current conversion module converts outdoor alternating current into low-voltage direct current, and power supplies of indoor cables and all devices in the system are the low-voltage direct current, so that the safety of the system is improved; the control module carries out direct current no stroboscopic regulation to lighting module, reduces effectively to student's eyes and health harm, more energy-conserving and life is longer.

Description

Indoor direct-current health-care lighting intelligent control system

Technical Field

The application belongs to the technical field of lighting, especially, relate to an indoor direct current health care illumination intelligence accuse system.

Background

The traditional indoor lighting system connects the lamp with an alternating current power supply through a cable, and 220V alternating current supplies power to the lamp through the cable, so that high-voltage alternating current is carried in a classroom, and potential safety hazards are caused to human bodies and fire fighting; and the illumination has blue light and flash hazard, influences teachers and students eyes and healthy.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an indoor direct current health care illumination intelligence accuse system, can solve the cable in the classroom and have high voltage alternating current, cause the problem of potential safety hazard to human body and fire control.

The embodiment of the application provides an indoor direct-current healthcare lighting intelligent control system which comprises a control module, a direct-current conversion module, a plurality of direct-current dimming modules, a plurality of constant-current driving modules and a plurality of lighting modules;

the input end of the direct current conversion module is used for being connected with an alternating current power supply, the output end of the direct current conversion module is respectively connected with the control module, each constant current driving module and each direct current dimming module, the control module is also connected with all the direct current dimming modules, each direct current dimming module is also connected with the corresponding constant current driving module, and each constant current driving module is connected with the corresponding lighting module;

the direct current conversion module is used for converting outdoor alternating current into direct current and supplying power to the control module, all the constant current driving modules and all the direct current dimming modules; the direct current dimming module is used for outputting a corresponding direct current signal according to a control instruction of the control module; the constant current driving module is used for regulating and outputting a DC (direct current) current according to the direct current signal and driving the lighting module through a power transmission line.

In a possible implementation manner, the indoor direct-current healthcare lighting intelligent control system further comprises a plurality of fault detection modules, an input end of each fault detection module is connected with an output end of the corresponding constant-current driving module, and an output end of each fault detection module is connected with the control module; the fault detection module is used for collecting current signals and/or voltage signals corresponding to the output of the constant current driving module, and outputting judgment signals to the control module according to the comparison result of the current signals and the preset current range and/or the comparison result of the voltage signals and the preset voltage range.

In a possible implementation manner, the indoor direct-current healthcare lighting intelligent control system further comprises a timing module, and the timing module is connected with the control module;

the timing module is used for timing according to the control instruction of the control module.

In one possible implementation manner, the indoor direct-current healthcare lighting intelligent control system further comprises a wired transceiver module and a wireless transceiver module;

the wired transceiving module and the wireless transceiving module are connected with the control module, the control module is used for carrying out information interaction with the mobile terminal through the wireless transceiving module, and the control module is also used for carrying out information interaction with the master control station through the wired transceiving module and the wireless transceiving module.

In one possible implementation, the control module includes a processor and a touch screen;

the processor is respectively connected with the touch screen and all the direct current dimming modules;

the touch-sensitive screen is used for showing the operating condition of indoor direct current health care illumination intelligence accuse system and the input of control command, the treater is used for according to control command control direct current module output direct current signal of adjusting luminance.

In one possible implementation manner, the dc dimming module includes a filtering unit, a driving unit, and a reference voltage unit;

the input end of the driving unit is connected with the control module through the filtering unit, the reference end of the driving unit is connected with the output end of the reference voltage unit, the input end of the reference voltage unit and the power end of the driving unit are both connected with the first power output end of the direct current conversion module, the output end of the driving unit is connected with the constant current driving module, the constant current driving module is further connected with the second power output end of the direct current conversion module, and the control module is further connected with the third power output end of the direct current conversion module.

In a possible implementation manner, the reference voltage unit includes a first resistor, a second resistor, and a voltage stabilization chip;

the grounding end of the voltage stabilizing chip is grounded, the input end of the voltage stabilizing chip is connected with the first power output end of the direct current conversion module, the output end of the voltage stabilizing chip is connected with the first end of the first resistor, the second end of the first resistor is connected with the reference end of the driving unit and the first end of the second resistor respectively, and the second end of the second resistor is grounded.

In a possible implementation manner, the filtering unit includes a third resistor, a fourth resistor, and a first capacitor;

the first end of the third resistor is connected with the first end of the fourth resistor and the control module respectively, the second end of the third resistor is grounded, the second end of the fourth resistor is connected with the first end of the first capacitor and the input end of the driving unit respectively, and the second end of the first capacitor is grounded.

In a possible implementation manner, the lighting module includes a plurality of LED lamps connected in series and/or in parallel, and the plurality of LED lamps connected in series and/or in parallel are connected to the constant current driving module through a power transmission line.

In a possible implementation manner, the lighting module further includes a negative ion generator, and the negative ion generator is connected to the constant current driving module.

In a possible implementation manner, each of the constant current driving modules includes a circuit abnormality protection unit, the circuit abnormality protection unit is configured to collect an output current or an output voltage of the constant current driving module, and when the output current of the constant current driving module exceeds a set current threshold or the output voltage exceeds a set voltage threshold, the circuit abnormality protection unit controls the constant current driving module to stop outputting the current.

Compared with the prior art, the embodiment of the application has the advantages that:

according to the embodiment of the application, the direct current conversion module converts outdoor alternating current into direct current to supply power to the whole system, the power supply sources of indoor cables and all devices in the system are low-voltage direct current, the low-voltage direct current cannot cause damage to human bodies, the use safety of the lighting system is improved, and fire disasters caused by short circuit due to alternating current power supply are avoided; simultaneously can be according to actual environment's requirement, the control module control direct current module output corresponding direct current signal of adjusting luminance, and constant current drive module realizes lighting module's direct current and does not have the stroboscopic regulation according to the illumination of direct current signal drive lighting module, builds good light environment for the student, can effectively prevent that the student is near-sighted and reduce the harm to the health.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic block diagram of an indoor dc healthcare lighting intelligent control system provided in an embodiment of the present application;

fig. 2 is a schematic block diagram of an indoor dc healthcare lighting intelligent control system provided in an embodiment of the present application;

fig. 3 is a schematic block diagram of an indoor dc healthcare lighting intelligent control system according to an embodiment of the present application;

fig. 4 is a schematic circuit connection diagram of an indoor dc healthcare lighting intelligent control system according to an embodiment of the present application;

fig. 5 is a schematic circuit connection diagram of an indoor dc healthcare lighting intelligent control system according to an embodiment of the present application.

In the figure: 100. an alternating current power supply; 200. a DC conversion module; 300. a control module; 400. a direct current dimming module; 401. a filtering unit; 402. a reference voltage unit; 500. a lighting module; 600. a fault detection module; 700. a timing module; 800. and the constant current driving module.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to" determining "or" in response to detecting ". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

Furthermore, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

Traditional indoor direct current health care illumination intelligence accuse system passes through the cable and is connected lamp and alternating current power supply, and 220V's alternating current supplies power for the lamp through the cable, leads to having highly compressed alternating current in the classroom, causes the potential safety hazard to human body and fire control.

Based on the problems, the embodiment of the application discloses an indoor direct-current healthcare lighting intelligent control system, wherein a direct-current conversion module in the indoor direct-current healthcare lighting intelligent control system converts outdoor alternating current into direct current to supply power to the whole system, power supply sources of indoor cables and all devices in the system are low-voltage direct current, the low-voltage direct current cannot cause damage to a human body, the use safety of a lighting system is improved, and fire disasters caused by short circuit of alternating current power supply are avoided; simultaneously can be according to actual environment's requirement, the control module control direct current module output corresponding direct current signal of adjusting luminance, and constant current drive module realizes lighting module's direct current and does not have the stroboscopic regulation according to the illumination of direct current signal drive lighting module, builds good light environment for the student, can effectively prevent that the student is near-sighted and reduce the harm to the health. The indoor direct-current healthcare lighting intelligent control system can be applied to places such as classrooms, libraries, museums or houses, and for convenience of description, the indoor direct-current healthcare lighting intelligent control system is applied to the classrooms for example.

In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.

Fig. 1 illustrates a schematic block diagram of an indoor intelligent control system for dc healthcare lighting, which may include a control module 300, a dc conversion module 200, a plurality of dc dimming modules 400, a plurality of constant current driving modules 800, and a plurality of lighting modules 500; the input end of the dc conversion module 200 is used for being connected to the ac power supply 100, the output end of the dc conversion module 200 is connected to the control module 300, each constant current driving module 800 and each dc dimming module 400, the control module 300 is further connected to all the dc dimming modules 400, each dc dimming module 400 is further connected to a corresponding constant current driving module 800, and each constant current driving module 800 is connected to a corresponding lighting module 500.

Specifically, the direct current conversion module 200 converts outdoor alternating current into direct current to supply power to the whole system, and power supply sources of indoor cables and various devices in the system are low-voltage direct current, so that the low-voltage direct current cannot cause damage to human bodies, the use safety of the lighting system is improved, and fire disasters caused by short circuit of alternating current power supply are avoided; meanwhile, according to the requirement of the actual environment, the control module 300 controls the direct current dimming module 400 to output a corresponding voltage signal, the constant current driving module 800 adjusts and outputs a DC current according to the direct current signal corresponding to the voltage signal output, and drives the illumination module 500, so that the direct current non-stroboscopic adjustment of the illumination module 500 is realized, a good light environment is created for students, and the shortsightedness of the students and the harm to the body are effectively prevented.

It should be noted that the dc conversion module 200 converts ac power into dc power for output, and obtains a plurality of dc powers with different voltage values through multi-path voltage transformation, so as to satisfy that the dc conversion module 200 simultaneously supplies power to the control module 300, the constant current driving module 800, and the dc dimming module 400.

Fig. 2 illustrates a schematic block diagram of an indoor dc healthcare lighting intelligent control system provided in an embodiment of the present application, and the indoor dc healthcare lighting intelligent control system may further include a plurality of fault detection modules 600 besides the various parts illustrated in fig. 1; the input end of each fault detection module 600 is connected with the output end of the corresponding constant current driving module 800, and the output end of each fault detection module 600 is connected with the control module 300.

Specifically, the fault detection module 600 may determine whether the corresponding constant current driving module 800 has a fault by collecting a current signal and/or a voltage signal output by the constant current driving module 800, and then transmitting the collected current signal and/or voltage signal to the control module 300, where the control module 300 compares the current signal with a preset current range, and/or compares the voltage signal with a preset voltage range. For example, when the current signal collected by the fault detection module 600 exceeds a preset current range and/or the voltage signal collected by the fault detection module 600 exceeds a preset voltage range, the control module 300 determines that the corresponding constant current driving module 800 has a fault. The plurality of fault detection modules 600 can monitor the working state of each constant current driving module 800, and when the control module 300 judges that the constant current driving module 800 has a fault, the alarm module connected with the control module 300 can give an alarm to inform a worker to check the fault in time.

The fault detection module 600 can also judge whether the corresponding constant current driving module 800 has a fault according to the collected current signal or voltage signal by collecting the current signal or voltage signal output by the constant current driving module 800, and send the corresponding judgment signal to the control module 300, and the control module 300 controls the alarm module to alarm according to the judgment signal initiated by the fault detection module 600, and informs the staff of checking the fault in time.

It should be noted that the control module 300 outputs different control commands, and the preset current ranges are different. For example, the control instruction output by the control module 300 controls the dc dimming module 400 to increase the output voltage signal, and the constant current driving module 800 further increases the output current signal according to the increased voltage signal to increase the brightness of the lighting module 500, at this time, the control module 300 selects a corresponding larger preset current range; the control instruction output by the control module 300 controls the dc dimming module 400 to reduce the output voltage signal, and the constant current driving module 800 further reduces the output current signal according to the reduced voltage signal to reduce the brightness of the lighting module 500, at this time, the control module 300 selects a corresponding smaller preset current range. By setting different preset current ranges, the accuracy of the detection of the fault detection module 600 can be improved.

Fig. 3 shows a schematic block diagram of an indoor dc healthcare lighting intelligent control system provided in an embodiment of the present application, and the indoor dc healthcare lighting intelligent control system may further include a timing module 700 outside the various parts shown in fig. 1, where the timing module 700 is connected to the control module 300.

Specifically, the control module 300 may set time (on time, dimming time interval or off time), the timing module 700 may perform timing according to an instruction of the control module 300, and when the set time is reached, the control module 300 may control the on/off and brightness adjustment of one or more lighting modules 500 (i.e., realize single control or group control of the lighting modules 500), so as to improve the intelligence of the indoor dc healthcare lighting intelligent control system. For example, the control module 300 may set the turn-off time of the lighting system (e.g., 11 pm), leave the classroom at night and forget to turn off the light, and when the 11 pm is reached, the control module 300 controls the lighting system to turn off, so as to reduce energy consumption and achieve the effect of saving energy.

In an embodiment of the present application, the indoor dc healthcare lighting intelligent control system may further include an image acquisition and sensing module, and the image acquisition and sensing module is connected to the control module 300.

Specifically, the image acquisition and sensing module acquires real-time scenes of a classroom, the control module 300 judges whether a person is in the classroom or not by analyzing the real-time images, and if the control module 300 judges that no person is in the classroom, the control module controls the lighting to be turned off, so that the automatic light turning-off of empty classrooms is realized, and the effects of saving electricity and energy are achieved.

The image acquisition and sensing module can also sense the real-time seat condition of a classroom, the control module 300 accurately judges whether a person is in the seat by analyzing the real-time seat reality and virtues, if the control module 300 judges that the seat is nobody, the illumination module 500 is automatically positioned and controlled to be turned off or to reduce the brightness, and if the seat is nobody, the illumination module 500 in the area is controlled to normally illuminate with the brightness, so that the effects of saving electricity and saving energy are achieved.

In an embodiment of the present application, the indoor dc healthcare lighting intelligent control system may further include a master control switch, and the master control switch is connected in series between the dc conversion module 200 and the ac power supply 100.

Specifically, the system is powered on or powered off by turning on or off the master control switch, when the master control switch is turned off, the dc conversion module 200 can provide low-voltage dc power for the dc dimming module 400 and the illumination module 500, and at this time, the control module 300 can control the illumination module 500 through the dc dimming module 400 and the constant current driving module 800; when the main control switch is turned off, the dc conversion module 200 cannot provide low-voltage dc power to the dc dimming module 400 and the lighting module 500, and the lighting system cannot work at this time. The overall control of the lighting system is realized through the master control switch, and when the lighting system breaks down or needs to be closed for a long time, the master control switch can be disconnected, so that the standby waste energy of each device in the system is prevented.

In an embodiment of the present application, the indoor dc healthcare lighting intelligent control system may further include a wired transceiver module and a wireless transceiver module, both the wired transceiver module and the wireless transceiver module are connected to the control module 300, the control module 300 may perform information interaction with the mobile terminal through the wireless transceiver module, and the control module is further configured to perform information interaction with the console through the wired transceiver module and the wireless transceiver module.

Specifically, the control information can be sent by the mobile terminal, and the control module 300 receives the control information sent by the mobile terminal through the wireless transceiver module, generates a corresponding control instruction according to the control information, controls the dc dimming module 400 to output a corresponding voltage, and drives the lighting module 500 to work, thereby implementing intelligent and manual remote control of the lighting system by the mobile terminal.

It should be noted that the mobile terminal may be a mobile electronic device capable of sending instruction information, such as a mobile phone, a remote controller, or a computer, and the wireless transceiver module may be a bluetooth module, a wireless 232 communication module, or a wireless 485 communication module. The wired transceiver module and the wireless transceiver module may be communication devices connected between the control module 300 and the console, and the console may control the entire system.

In one embodiment of the present application, the control module 300 may include a processor and a touch screen, and the processor is connected to the touch screen and the control terminals of all the dc dimming modules 400.

Specifically, various control instructions can be input through the touch screen, the processor controls the plurality of direct current dimming modules 400 to drive the corresponding lighting modules 500 to work through the constant current driving module 800 according to the control instructions, and meanwhile, the touch screen can display the working states of the direct current dimming modules 400 and the lighting modules 500, so that a user can master the working state of the lighting system conveniently.

Fig. 4 shows a circuit connection schematic diagram of the indoor dc healthcare lighting intelligent control system provided in the embodiment of the present application, and the dc dimming module 400 may include a filtering unit 401, a driving unit and a reference voltage unit 402, where the driving unit may select a mature driving chip, or may set up a hardware circuit with a function meeting, and the driving unit is described below by taking the driving chip as an example.

The input end of the driver chip U2 is connected to the control module 300 through the filter unit 401, the reference end of the driver chip U2 is connected to the output end of the reference voltage unit 402, the input end of the reference voltage unit 402 and the power supply end of the driver chip U2 are both connected to the first power output end of the dc conversion module 200, the output end of the driver chip U2 is connected to the constant current driver module 800, the constant current driver module 800 is further connected to the second power output end of the dc conversion module 200, and the control module 300 is further connected to the third power output end of the dc conversion module 200.

Specifically, the first power output end of the dc conversion module 200 is connected to a power supply end (sixth pin) of the driver chip U2 to provide power for the driver chip U2, and the reference voltage unit 402 provides a reference voltage for the driver chip U2 to adjust a voltage range output by an output end (fifth pin) of the driver chip U2. The control module 300 outputs a control instruction (PWM (Pulse Width Modulation) signal) to the input end (the third pin) of the driving chip U2, the driving chip U2 outputs a corresponding voltage signal at the output end (the fifth pin) according to the control instruction output by the control module 300, and the constant current driving module 800 adjusts the brightness of the lighting module 500 according to the voltage signal.

Illustratively, the driving chip U2 selects a Light-Emitting Diode (LED) driving chip with a model of JCP-10, the lighting module 500 selects an LED lamp set, the control module 300 outputs PWM signals with different duty ratios, the driving chip U2 outputs corresponding voltage signals (0-10V) according to the PWM signals, and the constant current driving module 800 outputs corresponding direct current signals according to the voltage signals to drive the LED lamp set. The duty ratio of the PWM signal output by the control module 300 is increased, the voltage output by the driving chip U2 is increased, the current output by the constant current driving module 800 is increased, and the LED lamp group is driven to increase the brightness; the duty ratio of the PWM signal output by the control module 300 is reduced, the voltage output by the driving chip U2 is reduced, the current output by the constant current driving module 800 is reduced, and the LED lamp set is driven to reduce the brightness.

Traditional PWM signal adjusts the LED banks, and the LED banks can produce the stroboscopic, can cause the harm to student's eyesight. The driving chip U2 in the embodiment of the application outputs a voltage signal of 0-10V by receiving the PWM signal, the constant current driving module 800 outputs a corresponding direct current signal according to the voltage signal to drive the LED lamp group, and the constant current driving module 800 outputs the direct current signal to drive the LED lamp group, so that stroboflash cannot be generated when the LED lamp group emits light, and the phenomenon that the eyesight of students is damaged by the stroboflash of the LED lamp group is avoided.

The LEDs in the LED lamp set can use LED lamps without blue light, high brightness, high color rendering index and color temperature of 2000K-5200K, so that the eyes and body health of students can be protected, and the myopia rate of the students is greatly reduced.

For example, the reference voltage unit 402 may include a first resistor R1, a second resistor R2, and a regulator chip U1; the ground terminal (first pin) of the voltage stabilization chip U1 is grounded, the input terminal (second pin) of the voltage stabilization chip U1 is connected with the output terminal of the dc conversion module 200, the output terminal (third pin) of the voltage stabilization chip U1 is connected with the first terminal of the first resistor R1, the second terminal of the first resistor R1 is connected with the reference terminal (second pin) of the driving chip U2 and the first terminal of the second resistor R2, and the second terminal of the second resistor R2 is grounded.

Specifically, the output end (third pin) of the voltage stabilization chip U1 may output a stable voltage, the voltage is divided by the first resistor R1 and the second resistor R2, the voltage at the two ends of the second resistor R2 is the output voltage (reference voltage) of the reference voltage unit 402, the reference voltage unit 402 outputs the reference voltage to the reference end (second pin) of the driving chip U2, and the adjustment of the output voltage range of the driving chip U2 may be achieved.

For example, the filter unit 401 may include a third resistor R3, a fourth resistor R4, and a first capacitor C1; a first end of the third resistor R3 is connected to the first end of the fourth resistor R4 and the control module 300, a second end of the third resistor R3 is grounded, a second end of the fourth resistor R4 is connected to the first end of the first capacitor C1 and the input end (third pin) of the driving chip U2, and a second end of the first capacitor C1 is grounded.

Specifically, the third resistor R3, the fourth resistor R4 and the first capacitor C1 form a filter circuit, which can filter out the impurity signals in the control command output by the control module 300, thereby improving the accuracy of the signal and preventing the phenomenon that the impurity signals in the control command cause malfunction of the dc dimming module 400.

For example, the lighting module 500 may include a plurality of LED lamps connected in series and/or in parallel, and the plurality of LED lamps connected in series and/or in parallel are connected to the constant current driving module 800.

Specifically, the number of LED lamps in the lighting module 500 may be determined according to actual requirements, and a plurality of LED lamps may be connected in series or in parallel to form an LED lamp group. Control module 300 is through the PWM signal of exporting different duty cycles, driver chip U2 is according to the corresponding voltage signal of PWM signal output, and constant current driver module 800 supplies power to the LED banks according to the corresponding direct current signal of the voltage signal output of driver chip U2, realizes the regulation of LED banks luminance, and the stroboscopic can not take place when the direct current signal is luminous to the LED banks drive, and light is softer, can effectually prevent that the student is near-sighted.

Traditional PWM adjusts luminance and can make LED banks take place the stroboflash, causes the student myopia easily, and driver chip U2 in this application drives LED banks according to the DC signal that voltage signal output corresponds, constant current drive module 800 according to voltage signal output corresponds, can eliminate LED banks stroboflash and appear, can realize again that accurate direct current does not have the stroboflash and adjust luminance, effectively protects student's eyesight and healthy.

Compared with the traditional lighting module, the lighting module 500 does not need to be provided with an alternating current driving device, the phenomenon that the system cannot work normally due to the fact that the alternating current driving device is damaged can be effectively avoided, and the stability of the whole system is improved.

The LED lamp bank can be free of blue light hazard, high in brightness, high in color rendering index and capable of reducing the myopia rate of students, and the color temperature is 2700K-5200K.

In one embodiment of the present application, the lighting module 500 may further include an anion generator, and the anion generator is connected to the constant current driving module 800.

Particularly, the negative ion generator can generate negative oxygen ions with high activity and small particle size, and the negative oxygen ions can achieve the effects of killing virus, sterilizing, removing dust and purifying air, and are beneficial to the treatment and health care of human bodies. When the LED lamp bank in the lighting module 500 is controlled to illuminate, the negative ion generator is started to work at the same time to generate negative oxygen ions, so that the immunity and the resistance of students can be enhanced, and the learning efficiency of the students can be improved.

In an embodiment of the present application, each constant current driving module 800 includes a circuit abnormality protection unit, where the circuit abnormality protection unit is configured to collect an output current or an output voltage of the constant current driving module 800, and when the output current of the constant current driving module 800 exceeds a set current threshold or the output voltage exceeds a set voltage threshold, the circuit abnormality protection unit controls the constant current driving module 800 to stop outputting the current. When each lighting module 500 circuit is short-circuited, the constant current driving module 800 can automatically cut off and stop working, other devices of the system are not affected and damaged, normal work is automatically recovered after the short circuit is eliminated, hidden dangers of fire protection and electric shock are eliminated, and the use safety of the lighting system is greatly improved.

In an embodiment of the present application, the indoor dc healthcare lighting intelligent control system may further include an emergency power supply, and the emergency power supply provides electric energy for the control module 300, the dc dimming module 400, the constant current driving module 800, and the lighting module 500. When power failure occurs, the emergency power supply can be used for supplying power to the system so as to ensure the normal operation of the system.

The number of the lighting modules 500 in the indoor intelligent control system for the direct-current healthcare lighting can be designed according to actual needs, each lighting module 500 is driven by one constant-current driving module 800, the input end of each constant-current driving module 800 is connected with the corresponding direct-current dimming module 400, the control end of each constant-current driving module 800 is respectively connected with the different control ports of the control module 300, for clearly explaining the working principle of the indoor intelligent control system for the direct-current healthcare lighting, the indoor intelligent control system for the direct-current healthcare lighting comprises three lighting modules 500 as an example, and the specific circuit connection schematic diagram is as shown in fig. 5.

Specifically, a control instruction can be input through the touch screen in the control module 300, the processor in the control module 300 outputs a PWM signal with a corresponding duty ratio at a corresponding control port according to the control instruction, the dc dimming module 400 outputs a corresponding voltage signal according to the PWM signal, the constant current driving module 800 outputs a corresponding dc signal according to the voltage signal to control the lighting module 500, the duty ratio of the PWM signal increases, the voltage output by the dc dimming module 400 increases, the current output by the constant current driving module 800 increases, and the lighting module 500 is driven to increase the brightness; the duty ratio of the PWM signal is reduced, the voltage output by the dc dimming module 400 is reduced, the current output by the constant current driving module 800 is reduced, and the lighting module 500 is driven to reduce the brightness. The control module 300 can perform group control and single control on each lighting module 500, so that the brightness of each region in a classroom can be adjusted and switched on and off, and myopia of students can be effectively prevented; the direct current conversion module 200 converts outdoor alternating current into direct current, and electric signals of all devices in a classroom are low-voltage direct current for short circuit self-protection, so that hidden dangers of fire protection and electric shock are eliminated, and the use safety of the lighting system is greatly improved.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. An indoor direct-current healthcare lighting intelligent control system is characterized by comprising a control module, a direct-current conversion module, a plurality of direct-current dimming modules, a plurality of constant-current driving modules and a plurality of lighting modules;

the direct current conversion module is used for converting outdoor alternating current into direct current and supplying power to the control module, all the constant current driving modules and all the direct current dimming modules; the direct current dimming module is used for outputting a corresponding direct current signal according to a control instruction of the control module; the constant current driving module is used for adjusting and outputting DC current according to the DC signal and driving the lighting module through a power transmission line.

2. The indoor direct-current healthcare lighting intelligent control system according to claim 1, further comprising a plurality of fault detection modules, wherein an input end of each fault detection module is connected with an output end of the corresponding constant-current driving module, and an output end of each fault detection module is connected with the control module; the fault detection module is used for collecting current signals and/or voltage signals corresponding to the output of the constant current driving module, and outputting judgment signals to the control module according to the comparison result of the current signals and the preset current range and/or the comparison result of the voltage signals and the preset voltage range.

3. The indoor direct-current healthcare lighting intelligent control system according to claim 1, further comprising a timing module, wherein the timing module is connected with the control module;

4. The indoor direct-current healthcare lighting intelligent control system according to claim 1, further comprising a wired transceiver module and a wireless transceiver module;

5. The indoor direct current healthcare lighting intelligence control system according to any one of claims 1 to 4, wherein the control module comprises a processor and a touch screen;

6. The indoor DC healthcare lighting intelligent control system according to any one of claims 1 to 4, wherein the DC dimming module comprises a filtering unit, a driving unit and a reference voltage unit;

7. The indoor direct-current healthcare lighting intelligent control system according to claim 6, wherein the reference voltage unit comprises a first resistor, a second resistor and a voltage stabilizing chip;

8. The indoor direct current healthcare lighting intelligent control system according to claim 6, wherein the filtering unit comprises a third resistor, a fourth resistor and a first capacitor;

9. The indoor direct-current healthcare lighting intelligent control system according to any one of claims 1 to 4, wherein the lighting module comprises a plurality of LED lamps connected in series and/or in parallel, and the plurality of LED lamps connected in series and/or in parallel are connected with the constant-current driving module through a power transmission line.

10. The indoor direct-current healthcare lighting intelligent control system according to claim 9, wherein the lighting module further comprises a negative ion generator, and the negative ion generator is connected with the constant-current driving module.

11. The indoor DC healthcare lighting intelligent control system according to any one of claims 1 to 4, wherein each of the constant current driving modules comprises a circuit abnormality protection unit, the circuit abnormality protection unit is configured to collect an output current or an output voltage of the constant current driving module, and when the output current or the output voltage of the constant current driving module exceeds a set current threshold or a set voltage threshold, the circuit abnormality protection unit controls the constant current driving module to stop outputting the current.