CN107517539B - Explosion-proof lighting control box and control method thereof - Google Patents
Explosion-proof lighting control box and control method thereof Download PDFInfo
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- CN107517539B CN107517539B CN201710934609.XA CN201710934609A CN107517539B CN 107517539 B CN107517539 B CN 107517539B CN 201710934609 A CN201710934609 A CN 201710934609A CN 107517539 B CN107517539 B CN 107517539B
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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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention provides an explosion-proof lighting control box and a control method thereof, and relates to the technical field of lighting control. The explosion-proof lighting control box comprises an alternating current voltage transmitter, a direct current voltage transmitter, a current sensor, a current transmitter, a lighting lamp group alternating current contactor, a lighting lamp group control intermediate relay, a fault control intermediate relay, a PLC, a fault voice alarm controller, a rain control intermediate relay, an induction intermediate relay, a sound control intermediate relay, an illuminance sensor, a rain control sensor, an induction sensor, a sound control sensor, a touch screen, a manual control module and the like, wherein the PLC receives signals sent by the illuminance sensor, the rain control sensor, the induction sensor and the sound control sensor, and controls the lighting lamp group switch according to a control type and a parameter control mode selected by a user. The invention is suitable for controlling the illumination in various occasions, monitors various operation parameters of the system in real time, immediately alarms when finding faults, and greatly improves the control automation degree and the operation reliability of the illumination system.
Description
Technical Field
The invention belongs to the technical field of illumination control, and particularly relates to an explosion-proof illumination control box and a control method thereof.
Background
Most of the existing illumination distribution boxes adopt single control methods such as time control, light control and rain control, and the control circuit is simple, and the cost is low, but the use surface is relatively narrow due to single function, so that the existing illumination distribution boxes are especially unfavorable for occasions requiring multiple control and frequent change of control conditions; the equipment needs to be comprehensively inspected by a maintainer in a circulating way to discover faults in time for overhauling, and the timing parameters of the switch lamp also need to be timely modified by the maintainer to adapt to continuously changed seasons of spring, summer, autumn and winter, so that the cost is wasted, the maintenance workload is increased, and problems can not be discovered in time sometimes, thereby causing unexpected energy waste and unnecessary economic loss. Therefore, it is very necessary to produce a device with more humanized functions, such as comprehensive functions, flexible control, capability of automatically detecting the running condition of the device and reporting the running condition to related maintenance departments in time, capability of automatically identifying seasons, capability of automatically modifying the time for switching on and off lamps in different seasons, and the like.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the explosion-proof lighting control box and the control method thereof, which have the advantages of strong functions, wide application range, flexible control, high reliability, strong expansibility and good energy-saving effect, can automatically detect the running condition of equipment, timely report the running condition to related maintenance departments, and can automatically identify seasons and automatically modify the time for switching lamps in different seasons.
In order to solve the technical problems, the invention adopts the following technical scheme:
in one aspect, the present invention provides an explosion-proof lighting control box comprising:
the intelligent lighting device comprises a box body, a switching power supply, an alternating current voltage transmitter, a direct current voltage transmitter, a current sensor, a current transmitter, a lighting lamp set alternating current contactor, a lighting lamp set control intermediate relay, a fault control intermediate relay, a PLC, a fault voice alarm controller, a rain control intermediate relay, an induction intermediate relay, a sound control intermediate relay, an illuminance sensor, a rain control sensor, an induction sensor, a sound control sensor, a loudspeaker, a fault indicator lamp, a total circuit breaker, a lighting lamp set power circuit breaker, a control power circuit breaker, a touch screen and a manual control module, wherein the switching power supply, the alternating current voltage transmitter, the direct current voltage transmitter, the current sensor, the current transmitter, the lighting lamp set alternating current contactor, the lighting lamp set control intermediate relay, the fault control intermediate relay, the PLC, the fault voice alarm controller, the rain control intermediate relay, the induction intermediate relay and the illuminance sensor are arranged outside the box body;
the input end of the total circuit breaker is connected with an external input power supply which is three-phase or single-phase; the input end of the lighting lamp set power circuit breaker is respectively connected with the output end of the total circuit breaker, the output end of the lighting lamp set power circuit breaker is respectively connected with one end of a main contact of the lighting lamp set alternating current contactor, and the other end of the main contact of the lighting lamp set alternating current contactor is connected with an external lighting lamp set; the input end of the control power circuit breaker is respectively connected with one phase and N phases of the total circuit breaker; the voltage input end of the switching power supply is connected with the output end of the control power circuit breaker, and the 24V output end of the switching power supply provides DC24V power for other direct current components of the explosion-proof lighting control box;
the manual control module comprises a manual/PLC selection switch for manual and automatic selection, a lamp on button for manually turning on each lighting lamp group, and a lamp off button for manually turning off each lighting lamp group; the manual turn-on button of the lighting lamp set is connected in parallel with the normally open contact of the lighting lamp set alternating current contactor, one end of the parallel structure is connected with one end of the normally closed contact of the manual turn-off button of the lighting lamp set, the other end of the parallel structure is simultaneously connected with one end of the coil of the lighting lamp set alternating current contactor and one end of one normally open contact of the lighting lamp set control intermediate relay, and the other end of the normally closed contact of the manual turn-off button of the lighting lamp set is connected with the corresponding manual control contact of the manual/PLC selection switch; the other end of one normally open contact of each lighting lamp set control intermediate relay is connected with an automatic control contact of a manual/PLC (programmable logic controller) selection switch; the other end of each control contact of the manual/PLC selection switch SA is simultaneously connected to one pole of the output end of the control power circuit breaker, and the other end of each coil of the alternating current contactor of each lighting lamp group is connected to the other pole of the output end of the control power circuit breaker; the main contact of each lighting lamp set alternating current contactor is respectively connected with each lighting lamp set;
two input ends of the alternating-current voltage transmitter are respectively connected with two phase lines of the output end of the total circuit breaker and are used for detecting the main loop voltage of the lighting lamp group; the two input ends of the direct-current voltage transmitter are connected with two DC24V output ends of the switching power supply and are used for detecting the DC24V voltage of the control loop; the current sensor is used for detecting the current of the main loop of the lighting lamp set, and a power line of the main loop of the lighting lamp set passes through an input side coil of the current sensor;
the analog input end of the PLC is connected with the output end of the alternating current voltage transmitter, the output end of the direct current voltage transmitter, the output end of the illuminance sensor and the output end of the current sensor through the current transmitter; the illuminance sensor is arranged at a position outside the box body, which is not interfered by light rays;
the PLC switching value input channel is connected with a function selection contact of the manual/PLC selection switch, a group of normally open contacts of the manual on-lamp button and the manual off-lamp button of each lighting lamp group, and the normally open contacts are respectively connected with the output ends of the rain control sensor, the induction sensor and the sound control sensor through the rain control intermediate relay, the induction intermediate relay and the sound control intermediate relay;
the PLC switching value output channel is connected with the input end of the fault control intermediate relay coil, the input end of the lighting lamp control intermediate relay coil and the fault indicator lamp;
the input ends of the normally open auxiliary contacts of the fault control intermediate relay are connected together to serve as a public end, the output ends of the normally open auxiliary contacts of the fault control intermediate relay are connected with the input ends of the fault voice alarm controller, and the output ends of the fault voice alarm controller are connected with the loudspeaker;
and the PLC is connected with the touch screen through an RS232 port.
Further, the explosion-proof lighting control box further comprises an upper computer, and the PLC is connected with the upper computer through an RS485 port.
Further, the explosion-proof lighting control box further comprises a power indicator lamp, and two ends of the power indicator lamp are connected with two output ends of the control power circuit breaker.
Further, the explosion-proof lighting control box further comprises a silencing button, one end of a normally closed contact of the silencing button is connected with the GND end of the fault voice alarm controller, and the other end of the normally closed contact of the silencing button is connected with a public end of a normally open contact of the fault control intermediate relay and used for closing sound after the fault voice alarm controller alarms.
Further, the number of the current sensors is determined according to the number of phases of a main loop power line of the lighting lamp, each phase line is provided with one current sensor, and the number of the current transmitters is the same as that of the current sensors; the number of the manual lamp-on buttons, the manual lamp-off buttons, the lighting lamp-set control intermediate relay and the lighting lamp-set alternating-current contactors of the lighting lamp-set is the same as the number of the lighting lamp-sets to be controlled.
Further, different lighting lamp sets are provided with different or the same illuminance sensors, different or the same induction sensors and different or the same sound control sensors.
On the other hand, the invention also provides a control method of the explosion-proof lighting control box, which comprises the following steps:
the PLC receives a control type selected by a user through a touch screen, wherein the control type comprises one of light control, time control, latitude parameter control and manual switch control;
the PLC receives a parameter control mode selected by a user through a touch screen, wherein the parameter control mode comprises one or more of a rain control switch parameter control mode, an induction switch parameter control mode and an acoustic control switch parameter control mode;
the PLC receives operation parameters set by a user through the touch screen, wherein the operation parameters comprise the switching time of each lighting lamp set, the illuminance of each lighting lamp set, the upper and lower alarm limits of alternating current voltage, the upper and lower alarm limits of direct current control voltage and the upper and lower alarm limits of current of each lighting lamp set;
the alternating current voltage transmitter and the direct current voltage transmitter respectively detect the main loop voltage and the control loop voltage of the lighting lamp bank in real time and send the main loop voltage and the control loop voltage to the PLC, and the current sensor detects the main loop current of the lighting lamp bank in real time and sends the main loop current to the PLC through the current transmitter;
the illuminance sensor monitors the illuminance intensity in real time and sends the illuminance intensity to the PLC;
the rain control sensor monitors the rain condition in real time, and when the scene rains, the rain control switch is turned on;
the induction sensor detects whether a person approaches the induction switch on site in real time, and when the person approaches the induction switch on site, the induction switch is turned on;
the sound control sensor detects the on-site sound condition in real time, and when the on-site detection of effective sound emission, the sound control switch is turned on;
the PLC receives signals sent by the illuminance sensor, the rain control sensor, the induction sensor and the sound control sensor, and controls the switch of the lighting lamp group according to the control type and the parameter control mode selected by a user, and the specific method is as follows:
(1) The method for controlling the switch of the lighting lamp group according to the control type selected by the user comprises the following steps:
if the control mode selected by the user is light control, the PLC judges whether the detection value of the illuminance sensor is smaller than the set illuminance of the lamp set, if so, the lamp set is turned on, otherwise, the lamp set is turned off; if the control mode selected by the user is time control, the PLC controls the on-off of each lamp group according to the set on-off time of each lamp group; if the control mode selected by the user is latitude parameter control, the PLC automatically calculates the time of switching on and off the lamp group on the next day according to the stored calendar every day on the basis of normal time control, and modifies the time of switching on and off the lamp group on the next day according to the calculation result; if the control mode selected by the user is manual switch control, manually operating a manual switch on and switch off button of the lighting lamp group on the panel of the box body to perform lamp on and off control;
(2) The method for controlling the switch of the lighting lamp group according to the parameter control mode selected by the user comprises the following steps:
if the parameter control mode selected by the user comprises parameter control of the rain control switch, the PLC judges whether the rain control switch is on, if yes, the lamp group is controlled to be turned off, otherwise, the switch of the lamp group is controlled according to the selected control type; if the parameter control mode selected by the user comprises parameter control of the induction switch, the PLC judges whether the induction switch is turned on or not, and judges whether the control condition of the selected control type is met or not, if both conditions are met, the lamp group is controlled to be turned on, otherwise, if any one of the two conditions is not met, the lamp group is turned off; if the parameter control mode selected by the user comprises the parameter control of the sound control switch, the PLC judges whether the sound control switch is turned on or not, and judges whether the control condition of the selected control type is met, if both conditions are met, the lamp group is controlled to be turned on, otherwise, if any one of the two conditions is not met, the lamp group is turned off;
the PLC controls the fault voice alarm controller to carry out voice alarm according to the main loop voltage of the illuminating lamp, the control loop voltage, the main loop current of the illuminating lamp, the upper and lower alarm limits of alternating current voltage, the upper and lower alarm limits of direct current control voltage and the upper and lower alarm limits of each lamp group current, and controls the on-off of the fault indicator lamp, namely if the condition of an alarm line is exceeded, the fault voice alarm controller carries out voice alarm, meanwhile the fault indicator lamp is on, if the condition of the alarm line is not exceeded, the fault voice alarm controller does not alarm, and meanwhile the fault indicator lamp is not on;
the PLC sends the time, the illuminance of the monitoring point, the alternating voltage of the main loop of the lighting lamp set, the control voltage, the actual current of each lamp set, the input state of each switch and button on the panel of the box body, the current, the voltage alarm condition, the running state of the rain control switch, the induction switch and the sound control switch and the switch condition of each lamp set to the touch screen for display.
Further, the calculation method of the next day switching lamp group time comprises the following steps: setting the daytime, longest day and evening on time as t1, and shortest daytime, evening on time as t2, and adjusting the time adjustment quantity delta t of the daytime, evening on time as follows:
△t＝(t1-t2)*60*60/182.5
when the daytime is changed from the longest day to the shortest day, the switching time of the next-day lamp group is reduced by delta t from the last day, and when the daytime is changed from the shortest day to the longest day, the switching time of the next-day lamp group is increased by delta t from the last day.
Further, the control type also comprises remote control, and if the control mode selected by the user is remote control, the PLC controls the on-off of each lighting lamp group according to the on-off signal sent by the upper computer.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: compared with the prior art, the explosion-proof lighting control box and the control method thereof provided by the invention have the following advantages:
(1) Taking a Programmable Logic Controller (PLC) of a high-tech content device as a control execution main body, realizing manual control, light control, time control, latitude parameter control and remote control on a lamp functionally, and matching with auxiliary control options: different combinations of rain control, induction control, sound control and the like can flexibly complete the control function suitable for various occasions, and various operation technical parameters of the system can be monitored in real time due to the use of the sensor, so that an operator can know the operation condition of the system in time and solve the problem in time, and the control automation degree and the operation reliability of the lighting system are greatly improved;
(2) The touch screen with powerful human-computer operation interface and the voice alarm module are applied, so that a rich human-computer interface is added in use, and a harmonious operation environment for people is provided for another sample;
(3) The system can communicate with an upper computer to realize remote detection control of the illumination box by a user;
(4) Compared with the conventional single-control common illumination distribution box, the control box has the advantages of strong function, wide application range, flexible control, high reliability, strong expansibility and good energy-saving effect, and is a very good upgrading and updating product of the conventional illumination system.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an explosion-proof lighting control box according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the circuit connections of an explosion-proof lighting control box according to one embodiment of the present invention; wherein, (a) is a PLC-EM231 control part, and (b) is a PLC-CPU224 control part;
FIG. 3 is a schematic diagram of signal transmission of an explosion-proof lighting control box according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of an explosion-proof lighting control box according to an embodiment of the present invention.
Detailed Description
An embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The explosion-proof lighting control box is a distribution box for realizing detection, control and power supply of lighting loops, and can be arranged in any non-explosion-proof, explosion-proof single-phase or three-phase lighting control electric circuit in various industries to realize control of lighting systems. The intelligent explosion-proof lighting control box can be used for controlling outdoor lamps and also used for intelligent explosion-proof lighting control of various indoor environments, and the control of three groups of lighting lamps LT1-LT3 is taken as an example, as shown in figures 1 and 2, the intelligent explosion-proof lighting control box comprises:
the intelligent power supply comprises a box body, a switching power supply DY, an alternating current voltage transmitter YB1, a direct current voltage transmitter YB2, current sensors LH1-LH3, current transmitters LB1-LB3, lighting lamp bank alternating current contactors KM1-KM3, lighting lamp bank control intermediate relays KA1-KA3, fault control intermediate relays KA4-KA9, a PLC, a fault voice alarm controller YY, a rain control intermediate relay KA11, an induction intermediate relay KA12, an induction intermediate relay KA14, an induction intermediate relay KA16, a sound control intermediate relay KA13, a sound control intermediate relay KA15, a sound control intermediate relay KA17, a illuminance sensor CGQ, a rain control sensor (namely a rain control switch) YK, an induction sensor (namely an induction switch) GK1-GK3, a sound control sensor (namely a sound control switch SK1-SK 3), an upper computer JS, a loudspeaker YSQ, a module, a total circuit breaker QF1-QF3, a lighting lamp bank power breaker QF3, a controller QF0 and a touch screen display screen, wherein the two ends of the two power supply controllers are connected with each other through the touch screen display device. In the specific implementation requiring explosion protection, the manual control module, the total breaker QF, the lighting lamp group power breakers QF1-QF3, the control power breaker QF0, the fault indicator lamp HY, the power indicator lamp HR, the touch screen HMI, the operating handle or the operating button of the silencing button XY or the display lamp are arranged on the outer wall of the box body and are subjected to explosion protection, but the elements are arranged in the box body, so that the realization of the explosion protection function is facilitated.
A plurality of connecting terminals are arranged on the box body, and components in the box body are connected with components outside the box body through the connecting terminals.
The input end of the total breaker QF is connected with an external input power supply (3 phases or single phases) through a wiring terminal 1-4, the input ends of the lighting lamp set power breakers QF1-QF3 are respectively connected with the output ends of the total breaker QF, the output ends of the lighting lamp set main power breakers QF1-QF3 are respectively connected with one ends of main contacts of lighting lamp set alternating current contactors KM1-KM3, and the other ends of the main contacts of the lighting lamp set alternating current contactors KM1-KM3 are respectively connected with an external lighting lamp set through wiring terminals 5-7. The input end of the control power circuit breaker QF0 is respectively connected with one phase and N phases of the total circuit breaker QF, and the output end of the control power circuit breaker QF0 provides AC220V power for the illumination control box. The voltage input end of the switching power supply DY is connected with the output end of the control power circuit breaker QF0, and the 24V output end provides DC24V power for the illumination control box.
The manual control module includes: the manual/PLC selection switch SA and the operating handle are arranged outside the box body and are connected with 3 pairs of manual on/off lamp control buttons SB12/SB11, SB22/SB21 and SB32/SB31 of the switch SA.
As shown in fig. 2 (a), the manual on-lamp button SB11 of the lighting lamp group LT1 is connected in parallel with the normally open contact of the lighting lamp group LT1 ac contactor KM1, one end of the parallel structure is connected to one end of the normally closed contact of the manual off-lamp button SB12 of the lighting lamp group LT1, the other end of the parallel structure is simultaneously connected to one end of the coil of the lighting lamp group LT1 ac contactor KM1 and one end of one normally open contact of the lighting lamp group LT1 control intermediate relay KA1, and the other end of the normally closed contact of the manual off-lamp button SB12 of the lighting lamp group LT1 is connected to the contact (4) of the manual control contacts (3) - (4) of the manual/PLC selection switch.
The manual turn-on button SB21 of the illumination lamp group LT2 is connected in parallel with the normally open contact of the illumination lamp group LT2 alternating current contactor KM2, one end of the parallel structure is connected with one end of the normally closed contact of the manual turn-off button SB22 of the illumination lamp group LT2, the other end of the parallel structure is simultaneously connected with one end of the coil of the illumination lamp group LT2 alternating current contactor KM2 and one end of one normally open contact of the illumination lamp group LT2 control intermediate relay KA2, and the other end of the normally closed contact of the manual turn-off button SB22 of the illumination lamp group LT2 is connected with the contact (6) in the manual control contacts (5) - (6) of the manual/PLC selection switch.
The manual turn-on button SB31 of the illumination lamp group LT3 is connected in parallel with the normally open contact of the illumination lamp group LT3 alternating current contactor KM3, one end of the parallel structure is connected with one end of the normally closed contact of the manual turn-off button SB32 of the illumination lamp group LT3, the other end of the parallel structure is simultaneously connected with one end of the coil of the illumination lamp group LT3 alternating current contactor KM3 and one end of one normally open contact of the illumination lamp group LT3 control intermediate relay KA3, and the other end of the normally closed contact of the manual turn-off button SB32 of the illumination lamp group LT3 is connected with the contact (8) in the manual control contacts (7) - (8) of the manual/PLC selection switch.
The other end of one normally open contact of the intermediate relays KA1, KA2 and KA3 of the lighting lamp group control is connected to the contact (2) in the automatic control contacts (1) - (2) of the manual/PLC selection switch. The other ends (1), (3), (5) and (7) of the control contacts of the manual/PLC selector switch SA are simultaneously connected to one pole of the output end of the control power circuit breaker QF0, and the other ends of the coils of the alternating current contactors KM1, KM2 and KM3 of each lighting lamp group are connected to the other pole of the output end of the control power circuit breaker QF 0; the main contacts of the alternating current contactors KM1, KM2 and KM3 of each lighting lamp group are respectively connected with each lighting lamp group LT1, LT2 and LT3.
In specific implementation, the number of the manual on/off lamp buttons, the lighting lamp set control intermediate relay and the lighting lamp set alternating current contactor is determined according to the number of the lighting lamp sets to be controlled according to the requirement, and a plurality of groups of manual on/off lamp control buttons, a plurality of lighting lamp set control intermediate relays and a plurality of lighting lamp set alternating current contactors are required to be installed.
Two input ends of the alternating current voltage transmitter YB1 are connected with two-phase output of the total breaker QF and used for detecting the main circuit voltage of the lighting lamp, and two input ends of the direct current voltage transmitter YB2 are connected with two DC24V output ends of the switching power supply DY and used for detecting the DC24V voltage of the control circuit. In specific implementation, the number of the voltage transmitters is not limited to two, and all parts needing to detect voltage in the system can be provided with the voltage transmitters according to actual conditions. The main loop power line of the lighting lamp respectively passes through the coils at the input sides of the current sensors LH1-LH3 and is used for detecting the current of the main loop of the lighting lamp.
The analog input end of the PLC is respectively connected with the output end of the alternating current voltage transmitter YB1, the output end of the direct current voltage transmitter YB2, the output end of the illuminance sensor CGQ and the output end of the current sensors LH1-LH3 through the current transmitters LB1-LB 3. The illuminance sensor CGQ is arranged at a position outside the box body, which is not interfered by the light ray.
The PLC switching value input channel is connected with function selection contacts (namely, 11 and 12 normally open contacts) of a manual/PLC control selection switch SA, a group of normally open contacts of manual lamp starting buttons SB11-SB31 and lamp closing buttons SB12-SB32 of each lighting lamp group, and output ends of the rain control sensor YK, the induction sensors GK1-GK3 and the sound control sensors SK1-SK3 respectively through a rain control intermediate relay KA11, an induction intermediate relay KA12, KA14, KA16 and a sound control intermediate relay KA13, KA15 and KA 17.
The PLC switching value output channel is connected with the coil input ends of the fault control intermediate relays KA4-KA9, the coil input ends of the lighting lamp group control intermediate relays KA1-KA3 and the fault indicator lamp HY.
The normally open auxiliary contact input ends of the fault control intermediate relays KA4-KA9 are connected together to serve as a common end, the normally open auxiliary contact output ends of the fault control intermediate relays KA4-KA9 are connected with the input end of the fault voice alarm controller YY, and the output end of the fault voice alarm controller YY is connected with the external loudspeaker YSQ through the connecting terminals 55 and 56. The silencing button XY normally-closed contact is connected in series between the GND end of the fault voice alarm controller YY and the public end of the normally-open contact connection of the fault control intermediate relays KA4-KA9 and is used for manually closing the sound of the fault voice alarm controller YY after alarm.
The PLC is also connected with the touch screen HMI and the upper computer JSJ, specifically, the PLC is connected with the RS232 port of the touch screen through an RS232 port, and the PLC is connected with the RS485 port of the external computer JSJ through an RS485 port through connecting terminals 52 and 53.
In this embodiment, the PLC is a connected PLC-EM231 and PLC-CPU224.
In the process of controlling the on-off of the lamp set by the PLC, the PLC outputs a control signal to control the coil of the intermediate relay KA1, the PLC outputs a control signal to control the coil of the intermediate relay KA2, and the PLC outputs a control signal to control the coil of the intermediate relay KA3, for the lamp set 3. If each lamp group meets the lamp lighting control condition, the coils of the corresponding intermediate relays KA1, KA2 and KA3 are respectively powered on, normally open contacts of KA1, KA2 and KA3 are respectively closed, when an external manual change-over switch SA points to PLC control, contacts 1 and 2 of the SA change-over switch are closed, the coils of alternating current contactors KM1, KM2 and KM3 controlled by the normally open contacts of KA1, KA2 and KA3 are respectively powered on, normally open contacts of KM1, KM2 and KM3 are respectively closed, and the lamp groups 1, 2 and 3 controlled by the normally open contacts of KM1, KM2 and KM3 are respectively powered on, otherwise, the lamp groups are turned off.
Wherein, different illuminance sensors, inductive sensors, acoustic control sensors can be installed to different banks, also can use same illuminance sensor, inductive sensor, acoustic control sensor, and what kind of selection depends on the field control actual conditions. In this example, 3 groups of common illumination intensity sensors are selected, and different lamp groups respectively use different induction sensors and acoustic control sensors.
In this example, the device models are shown in table 1.
Table 1 number and model of devices
In this embodiment, the signal transmission relationship of the lighting control box is shown in fig. 3.
The control method of the explosion-proof lighting control box is shown in fig. 4, and the specific method is as follows.
The PLC receives a control type selected by a user through the touch screen HMI, wherein the control type comprises one of light control, time control, latitude parameter control, remote control and manual switch control;
the PLC receives a parameter control mode selected by a user through the touch screen HMI, wherein the parameter control mode comprises one or more of a rain control switch parameter control mode, an induction switch parameter control mode and an acoustic control switch parameter control mode;
the PLC receives operation parameters set by a user through the touch screen HMI, wherein the operation parameters comprise switching time of each lamp group, illuminance of each lamp group, upper and lower alarm limits of alternating current voltage, upper and lower alarm limits of direct current control voltage and upper and lower alarm limits of current of each lamp group;
the alternating-current voltage transmitter HB1 and the direct-current voltage transmitter HB2 respectively detect the main circuit voltage of the lighting lamp and the DC24V voltage of the control circuit in real time and send the voltages to the PLC, and the current sensors LB1-LB3 detect the current of the main circuit of the lighting lamp in real time and send the currents to the PLC through the current transmitters LB1-LB 3;
the illumination intensity sensor CGQ monitors illumination intensity in real time and sends the illumination intensity to the PLC;
the rain control sensor YK monitors the rain condition in real time, and when the scene rains, the rain control switch is turned on;
the induction sensors GK1-GK3 detect whether an object approaches a switch on site in real time, and when the object approaches the switch on site, the induction switch is turned on;
the sound control sensors SK1-SK3 detect the on-site sound condition in real time, and when the on-site detection of effective sound emission, the sound control switch is turned on;
the PLC receives signals sent by the illuminance sensor CGQ, the rain control sensor YK, the induction sensors GK1-GK3 and the sound control sensors SK1-SK3, and controls the on-off of the illuminating lamps LT1, LT2 and LT3 according to the control type and the parameter control mode selected by a user.
The method for controlling the switch of the lighting lamp group according to the control type selected by the user comprises the following steps:
(1) If the control mode selected by the user is light control, the PLC judges whether the detection value of the illuminance sensor CGQ is smaller than the set illuminance of the lamp set, if so, the lamp set LT1, LT2 or LT3 is turned on, otherwise, the lamp set LT1, LT2 or LT3 is turned off;
(2) If the control mode selected by the user is a time control, the PLC controls the on-off of each lamp group LT1, LT2 and LT3 according to the set switching time of each lamp group;
(3) If the control mode selected by the user is latitude parameter control, the PLC automatically calculates the time of the next day switching lamp group on the basis of normal time control according to the stored calendar every day, and modifies the time of the next day switching lamp groups LT1, LT2 and LT3 according to the calculation result;
the earth rotates for 24 hours at 1 week, and revolves around the sun for about 365 days each time, the inclination angle between the central axis of the earth and the sun and the earth is 66.5 degrees, the inclination angle is always kept unchanged when the earth revolves around the sun, and the orbit of the earth revolving around the sun is elliptical, which is the direct reason that the season alternation occurs around the world.
The sun irradiates the half of the earth surface exactly evenly on the 3 month 21 days each year, and the day and night are divided equally, and at the moment, the sun is in spring in northern latitude areas (northern hemispheres) and in autumn in southern latitude areas (southern hemispheres). Later, the daytime in the northern latitudes (northern hemisphere) is gradually lengthened, the night is gradually shortened, the daytime in the southern latitudes (southern hemisphere) is gradually shortened, the night is gradually lengthened, 21 and 22 days a year, the daytime in the northern latitudes (northern hemisphere) is longest, the night is shortest, the daytime in the southern latitudes (southern hemisphere) is shortest, and the night is longest; at this time, the north latitude region (northern hemisphere) enters into cool summer, and the south latitude region (southern hemisphere) enters into severe winter. And further, the daytime in the northern latitudes (northern hemisphere) is gradually shortened, the nighttime is gradually lengthened, the daytime in the southern latitudes (southern hemisphere) is gradually lengthened, the nighttime is gradually shortened, the day of 9 months and 23 days each year is shortened, sunlight uniformly irradiates half of the ground surface, the day and night is divided equally, and the spring in the southern latitudes (southern hemisphere) is already in autumn in the northern latitudes (northern hemisphere). And then, the daytime in the northern latitudes (northern hemisphere) continues to be shortened, the nighttime continues to be lengthened, and the daytime in the southern latitudes (southern hemisphere) continues to be lengthened, and the nighttime continues to be shortened. When 12 months and 21 days of the year are reached, the daytime in the northern latitudes (northern hemisphere) is shortest, the daytime in the southern latitudes (southern hemisphere) is longest, and the daytime in the northern latitudes (southern hemisphere) is shortest; at this time, the north latitude region (northern hemisphere) enters severe winter, and the south latitude region (southern hemisphere) enters cool summer. The seasons of spring, summer, autumn and winter are formed by repeating the steps. It is also seen that seasonal variations can be translated into date variations, solely for a fixed geographic location;
in this example, in a certain north pessary, assuming that 20 pm is turned on the longest day of daytime (6 months, 21 days) and 17 pm is turned on the shortest day of daytime (12 months, 21 days), the time adjustment amount Δt for turning on the lights every day at night is calculated as follows:
△t＝(20-17)*60*60/182.5＝59.17s
the day time is changed from the longest day to the shortest day, 59.17s are required to be reduced every day, 59.17s are required to be increased when the day time is changed from the shortest day to the longest day, and the cycle is repeated;
(4) If the control mode selected by the user is remote control, the PLC controls the on-off of the lamp groups LT1, LT2 and LT3 according to the on-off signals sent by the upper computer;
(5) If the control mode selected by the user is manual switch control, the manual switch lighting lamp group buttons SB12\SB11, SB22\SB21 and SB32\SB31 on the manual operation panel are used for carrying out on-off control on the lamp groups LT1, LT2 and LT3.
The method for controlling the switch of the lighting lamp group according to the parameter control mode selected by the user comprises the following steps:
(6) If the parameter control mode selected by the user comprises parameter control of the rain control switch, the PLC judges whether the rain control switch YK is turned on, if so, the lamp groups LT1, LT2 and LT3 are controlled to be turned off, otherwise, the lamp groups LT1, LT2 or LT3 are controlled according to the selected control type;
(7) If the parameter control mode selected by the user comprises the parameter control of the induction switch, the PLC judges whether the induction switch GK1, GK2 or GK3 is turned on or not, and judges whether the control condition of the selected control type is met or not, if both conditions are met, the lamp group LT1, LT2 or LT3 is controlled to be turned on, otherwise, if any one of the two conditions is not met, the lamp group LT1, LT2 or LT3 is turned off;
(8) If the parameter control mode selected by the user comprises the parameter control of the sound control switch, the PLC judges whether the sound control switch SK1, SK2 or SK3 is turned on or not, judges whether the control condition of the selected control type is met or not, controls the lamp group LT1, LT2 or LT3 to be turned on if both conditions are met, and turns off the lamp group LT1, LT2 or LT3 if any one of the two conditions is not met.
The PLC carries out voice alarm according to the main loop voltage of the illuminating lamp, the DC24V voltage of the control loop and the main loop current of the illuminating lamp, as well as the upper and lower alarm limits of alternating current voltage, the upper and lower alarm limits of direct current control voltage and the upper and lower alarm limits of each lamp group current, and the fault voice alarm controller YY carries out voice alarm to control the on-off of the fault indicator lamp HY, so that an operator can know the fault condition of equipment at the first time for timely treatment and solving.
The PLC sends the time, the illuminance of the monitoring point, the main loop voltage of the lighting lamp group, the control voltage, the actual current of each lamp group, the input state of each switch and button on the panel, the current and voltage alarm condition, the running state of the rain control switch, the induction switch and the sound control switch and the switch state of each lamp group to the touch screen HMI for display.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions, which are defined by the scope of the appended claims.
Claims (9)
1. An explosion-proof lighting control box, its characterized in that: comprising the following steps:
the intelligent lighting device comprises a box body, a switching power supply, an alternating current voltage transmitter, a direct current voltage transmitter, a current sensor, a current transmitter, a lighting lamp set alternating current contactor, a lighting lamp set control intermediate relay, a fault control intermediate relay, a PLC, a fault voice alarm controller, a rain control intermediate relay, an induction intermediate relay, a sound control intermediate relay, an illuminance sensor, a rain control sensor, an induction sensor, a sound control sensor, a loudspeaker, a fault indicator lamp, a total circuit breaker, a lighting lamp set power circuit breaker, a control power circuit breaker, a touch screen and a manual control module, wherein the switching power supply, the alternating current voltage transmitter, the direct current voltage transmitter, the current sensor, the current transmitter, the lighting lamp set alternating current contactor, the lighting lamp set control intermediate relay, the fault control intermediate relay, the PLC, the fault voice alarm controller, the rain control intermediate relay, the induction intermediate relay and the illuminance sensor are arranged outside the box body;
the input end of the total circuit breaker is connected with an external input power supply which is three-phase or single-phase; the input end of the lighting lamp set power circuit breaker is respectively connected with the output end of the total circuit breaker, the output end of the lighting lamp set power circuit breaker is respectively connected with one end of a main contact of the lighting lamp set alternating current contactor, and the other end of the main contact of the lighting lamp set alternating current contactor is connected with an external lighting lamp set; the input end of the control power circuit breaker is respectively connected with one phase and N phases of the total circuit breaker; the voltage input end of the switching power supply is connected with the output end of the control power circuit breaker, and the 24V output end of the switching power supply provides DC24V power for other direct current components of the explosion-proof lighting control box;
the manual control module comprises a manual/PLC selection switch for manual and automatic selection, a lamp on button for manually turning on each lighting lamp group, and a lamp off button for manually turning off each lighting lamp group; the manual turn-on button of the lighting lamp set is connected in parallel with the normally open contact of the lighting lamp set alternating current contactor, one end of the parallel structure is connected with one end of the normally closed contact of the manual turn-off button of the lighting lamp set, the other end of the parallel structure is simultaneously connected with one end of the coil of the lighting lamp set alternating current contactor and one end of one normally open contact of the lighting lamp set control intermediate relay, and the other end of the normally closed contact of the manual turn-off button of the lighting lamp set is connected with the corresponding manual control contact of the manual/PLC selection switch; the other end of one normally open contact of each lighting lamp set control intermediate relay is connected with an automatic control contact of a manual/PLC (programmable logic controller) selection switch; the other end of each control contact of the manual/PLC selection switch SA is simultaneously connected to one pole of the output end of the control power circuit breaker, and the other end of each coil of the alternating current contactor of each lighting lamp group is connected to the other pole of the output end of the control power circuit breaker; the main contact of each lighting lamp set alternating current contactor is respectively connected with each lighting lamp set;
two input ends of the alternating-current voltage transmitter are respectively connected with two phase lines of the output end of the total circuit breaker and are used for detecting the main loop voltage of the lighting lamp group; the two input ends of the direct-current voltage transmitter are connected with two DC24V output ends of the switching power supply and are used for detecting the DC24V voltage of the control loop; the current sensor is used for detecting the current of the main loop of the lighting lamp set, and the power line of the main loop of the lighting lamp set respectively passes through the input side coil of the current sensor;
the analog input end of the PLC is connected with the output end of the alternating current voltage transmitter, the output end of the direct current voltage transmitter, the output end of the illuminance sensor and the output end of the current sensor through the current transmitter; the illuminance sensor is arranged at a position outside the box body, which is not interfered by light rays;
the PLC switching value input channel is connected with a function selection contact of the manual/PLC selection switch, a group of normally open contacts of the manual on-lamp button and the manual off-lamp button of each lighting lamp group, and the normally open contacts are respectively connected with the output ends of the rain control sensor, the induction sensor and the sound control sensor through the rain control intermediate relay, the induction intermediate relay and the sound control intermediate relay;
the PLC switching value output channel is connected with the input end of the fault control intermediate relay coil, the input end of the lighting lamp control intermediate relay coil and the fault indicator lamp;
the input ends of the normally open auxiliary contacts of the fault control intermediate relay are connected together to serve as a public end, the output ends of the normally open auxiliary contacts of the fault control intermediate relay are connected with the input ends of the fault voice alarm controller, and the output ends of the fault voice alarm controller are connected with the loudspeaker;
and the PLC is connected with the touch screen through an RS232 port.
2. The explosion-proof lighting control box of claim 1, wherein: the explosion-proof lighting control box further comprises an upper computer, and the PLC is connected with the upper computer through an RS485 port.
3. The explosion-proof lighting control box of claim 1, wherein: the explosion-proof lighting control box further comprises a power indicator lamp, and two ends of the power indicator lamp are connected with two output ends of the control power circuit breaker.
4. The explosion-proof lighting control box of claim 1, wherein: the explosion-proof lighting control box further comprises a silencing button which is a normally closed contact, one end of the silencing button is connected with the GND end of the fault voice alarm controller, and the other end of the silencing button is connected with a public end connected with the normally open contact of the fault control intermediate relay.
5. An explosion-proof lighting control box as defined in any one of claims 1-4, wherein: the number of the current sensors is determined according to the number of phases of a main loop power line of the lighting lamp, each phase line is provided with one current sensor, and the number of the current transmitters is the same as that of the current sensors; the number of the manual lamp-on buttons, the manual lamp-off buttons, the lighting lamp-set control intermediate relay and the lighting lamp-set alternating-current contactors of the lighting lamp-set is the same as the number of the lighting lamp-sets to be controlled.
6. The explosion-proof lighting control box according to any one of claim 5, wherein: different illumination lamp sets are provided with different or the same illuminance sensors, different or the same induction sensors and different or the same sound control sensors.
7. A control method of the explosion-proof lighting control box as set forth in claim 1, characterized in that: comprising the following steps:
the PLC receives a control type selected by a user through a touch screen, wherein the control type comprises one of light control, time control, latitude parameter control and manual switch control;
the PLC receives a parameter control mode selected by a user through a touch screen, wherein the parameter control mode comprises one or more of a rain control switch parameter control mode, an induction switch parameter control mode and an acoustic control switch parameter control mode;
the PLC receives operation parameters set by a user through the touch screen, wherein the operation parameters comprise the switching time of each lighting lamp set, the illuminance of each lighting lamp set, the upper and lower alarm limits of alternating current voltage, the upper and lower alarm limits of direct current control voltage and the upper and lower alarm limits of current of each lighting lamp set;
the alternating current voltage transmitter and the direct current voltage transmitter respectively detect the main loop voltage and the control loop voltage of the lighting lamp bank in real time and send the main loop voltage and the control loop voltage to the PLC, and the current sensor detects the main loop current of the lighting lamp bank in real time and sends the main loop current to the PLC through the current transmitter;
the illuminance sensor monitors the illuminance intensity in real time and sends the illuminance intensity to the PLC;
the rain control sensor monitors the rain condition in real time, and when the scene rains, the rain control switch is turned on;
the induction sensor detects whether a person approaches the induction switch on site in real time, and when the person approaches the induction switch on site, the induction switch is turned on;
the sound control sensor detects the on-site sound condition in real time, and when the on-site detection of effective sound emission, the sound control switch is turned on;
the PLC receives signals sent by the illuminance sensor, the rain control sensor, the induction sensor and the sound control sensor, and controls the switch of the lighting lamp group according to the control type and the parameter control mode selected by a user, and the specific method is as follows:
(1) The method for controlling the switch of the lighting lamp group according to the control type selected by the user comprises the following steps:
if the control mode selected by the user is light control, the PLC judges whether the detection value of the illuminance sensor is smaller than the set illuminance of the lamp set, if so, the lamp set is turned on, otherwise, the lamp set is turned off; if the control mode selected by the user is time control, the PLC controls the on-off of each lamp group according to the set on-off time of each lamp group; if the control mode selected by the user is latitude parameter control, the PLC automatically calculates the time of switching on and off the lamp group on the next day according to the stored calendar every day on the basis of normal time control, and modifies the time of switching on and off the lamp group on the next day according to the calculation result; if the control mode selected by the user is manual switch control, manually operating a manual switch on and switch off button of the lighting lamp group on the panel of the box body to perform lamp on and off control;
(2) The method for controlling the switch of the lighting lamp group according to the parameter control mode selected by the user comprises the following steps:
if the parameter control mode selected by the user comprises parameter control of the rain control switch, the PLC judges whether the rain control switch is on, if yes, the lamp group is controlled to be turned off, otherwise, the switch of the lamp group is controlled according to the selected control type; if the parameter control mode selected by the user comprises parameter control of the induction switch, the PLC judges whether the induction switch is turned on or not, and judges whether the control condition of the selected control type is met or not, if both conditions are met, the lamp group is controlled to be turned on, otherwise, if any one of the two conditions is not met, the lamp group is turned off; if the parameter control mode selected by the user comprises the parameter control of the sound control switch, the PLC judges whether the sound control switch is turned on or not, and judges whether the control condition of the selected control type is met, if both conditions are met, the lamp group is controlled to be turned on, otherwise, if any one of the two conditions is not met, the lamp group is turned off;
the PLC controls the fault voice alarm controller to carry out voice alarm according to the main loop voltage of the illuminating lamp, the control loop voltage, the main loop current of the illuminating lamp, the upper and lower alarm limits of alternating current voltage, the upper and lower alarm limits of direct current control voltage and the upper and lower alarm limits of each lamp group current, and controls the on-off of the fault indicator lamp, namely if the condition of an alarm line is exceeded, the fault voice alarm controller carries out voice alarm, meanwhile the fault indicator lamp is on, if the condition of the alarm line is not exceeded, the fault voice alarm controller does not alarm, and meanwhile the fault indicator lamp is not on;
the PLC sends the time, the illuminance of the monitoring point, the alternating voltage of the main loop of the lighting lamp set, the control voltage, the actual current of each lamp set, the input state of each switch and button on the panel of the box body, the current, the voltage alarm condition, the running state of the rain control switch, the induction switch and the sound control switch and the switch condition of each lamp set to the touch screen for display.
8. The control method of an explosion-proof lighting control box according to claim 7, wherein: the calculation method of the next day switching lamp group time comprises the following steps: setting the daytime, longest day and evening on time as t1, and shortest daytime, evening on time as t2, and adjusting the time adjustment quantity delta t of the daytime, evening on time as follows:
△t＝(t1-t2)*60*60/182.5
when the daytime is changed from the longest day to the shortest day, the switching time of the next-day lamp group is reduced by delta t from the last day, and when the daytime is changed from the shortest day to the longest day, the switching time of the next-day lamp group is increased by delta t from the last day.
9. The control method of an explosion-proof lighting control box according to claim 7, wherein: the control type also comprises remote control; if the control mode selected by the user is remote control, the PLC controls the on-off of each lighting lamp group according to the on-off signal sent by the upper computer.
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