CN112135403A - Multi-criterion automatic switching emergency lighting system and method based on illumination intensity - Google Patents
Multi-criterion automatic switching emergency lighting system and method based on illumination intensity Download PDFInfo
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- CN112135403A CN112135403A CN202010848622.5A CN202010848622A CN112135403A CN 112135403 A CN112135403 A CN 112135403A CN 202010848622 A CN202010848622 A CN 202010848622A CN 112135403 A CN112135403 A CN 112135403A
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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
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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
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Abstract
The invention discloses a multi-criterion automatic switching emergency lighting system and a method based on illumination intensity, wherein the system comprises: the main control unit, mains supply state monitoring unit, the module of charging, the battery, emergency generator, illumination intensity detecting element, photoswitch device, emergency lighting lamp, the mains supply light, the input of the module of charging is connected to mains supply, the output of the module of charging is connected to the power incoming end of main control unit and the input of battery respectively, mains supply state monitoring unit's output is connected to main control unit's input, main control unit's control output end is connected to emergency generator's control input end, emergency lighting lamp is connected to emergency generator's power output end, illumination intensity detecting element's output is connected to photoswitch device's input, photoswitch device's output is connected to main control unit's input, mains supply is connected with the mains supply light. The invention improves the illumination switching efficiency, and has simple principle and convenient operation.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a multi-criterion automatic switching emergency lighting system and method based on illumination intensity.
Background
With the development of economic society, more and more important economic and social activities are performed, and emergency lighting power-saving and supplying devices are often needed to be arranged in places with important activities so as to deal with sudden and transient fault power failure accidents.
The existing emergency lighting mostly adopts the working mode of manually starting an emergency generator or using an Uninterruptible Power Supply (UPS) to provide temporary lighting. The working mode is long in time consumption, high in economic cost, intelligent and low in flexibility for processing emergency power failure accidents and recovering temporary power supply.
The existing emergency lighting technology is mainly a mode of manually starting an emergency generator or a working mode of providing temporary lighting by using an Uninterruptible Power Supply (UPS), and the defects of the existing emergency lighting technology are mainly summarized as the following points:
1. the manual starting mode has long starting time consumption, is difficult to meet the intelligent requirement of quick and non-inductive starting of emergency lighting, has backward technology and lower production efficiency;
2. the existing emergency lighting starting mode can only achieve the purpose of starting emergency lighting mostly, and cannot automatically stop emergency lighting according to an actual scene, so that the flexibility is lacked;
3. the existing emergency lighting starting mode can not realize the monitoring of the state of the mains supply and the damage judgment of the mains supply illuminating lamp, and has single function;
4. the existing emergency lighting starting mode adopting a UPS (uninterrupted power supply) to provide temporary power supply causes more economic resource waste due to higher cost;
5. the prior art adopts the mode of manual start emergency lighting, and intensity of labour is big, receives the human factor influence many, has the risk that causes the personal electric shock accident, consequently has great potential safety hazard.
Therefore, the research on an emergency lighting system which can be started quickly, has better economical efficiency, higher intelligent level and better flexibility meets the quick power restoration requirement of the modern power protection and supply task, and becomes a key to be broken through urgently.
In the prior art, a chinese patent publication No. CN111343763A discloses an elevator emergency lighting system in 26/6/2020, which includes: the system comprises a control chip, a car lighting source fault detection circuit module, a mains supply power failure detection circuit and a battery voltage and battery charging detection circuit; the car lighting source fault detection circuit module at least comprises: the LED illuminating lamp constant current driving circuit and the car illumination detection circuit are connected with the LED illuminating lamp constant current driving circuit; the car illumination detection circuit is used for acquiring illumination in the car, converting the illumination into an illumination signal which can be identified by the control chip, and judging whether to start the standby LED light source by driving the LED illuminating lamp constant-current driving circuit according to the acquired illumination intensity. Although the lighting control is performed based on the light intensity, the present invention does not involve power failure detection, determination of lighting switching time, and the like, and is not intelligent and flexible.
Disclosure of Invention
The invention provides a multi-criterion automatic switching emergency lighting system and method based on illumination intensity, aiming at overcoming the defects that the emergency lighting system in the prior art is not flexible and intelligent enough in lighting switching and low in lighting switching efficiency.
The primary objective of the present invention is to solve the above technical problems, and the technical solution of the present invention is as follows:
the invention provides a multi-criterion automatic switching emergency lighting system based on illumination intensity, which comprises: the emergency lighting system comprises a main control unit, a mains supply state monitoring unit, a charging module, a storage battery, an emergency generator, an illumination intensity detection unit, a photoswitch device, an emergency lighting lamp and a mains supply lighting lamp, wherein the input end of the charging module is connected to a mains supply, the output end of the charging module is respectively connected to the power input end of the main control unit and the input end of the storage battery, the output end of the storage battery is connected to the power input end of the main control unit, the acquisition end of the mains supply state monitoring unit is connected to the mains supply, the output end of the mains supply state monitoring unit is connected to the input end of the main control unit, the control output end of the main control unit is connected to the control input end of the emergency generator, the power output end of the emergency generator is connected with, the output end of the light-operated switch device is connected to the input end of the main control unit, and the mains supply is electrically connected with the mains supply illuminating lamp.
In this scheme, the input of the module of charging is connected to mains supply through first switch.
In this scheme, the collection end of mains supply state monitoring unit is connected to mains supply through the second switch.
In the scheme, the power output end of the emergency generator is connected with the emergency illuminating lamp through the third switch.
In the scheme, the main control unit is a programmable logic controller or a 51 single chip microcomputer.
In this scheme, mains supply state monitoring unit includes voltage transformer, current transformer.
In the scheme, the storage battery is a lead-acid storage battery or a lithium battery.
In this scheme, the light-operated switching device is a light-operated relay.
The invention provides a multi-criterion automatic switching emergency lighting method based on illumination intensity in a second aspect, which comprises the following steps:
s1: setting light-operated induction parameters for the illumination intensity detection unit, and determining the corresponding illumination intensity value when the emergency lighting is started or stopped;
s2: monitoring the voltage and the current of the mains supply by using a mains supply state monitoring unit to determine whether the voltage and the current of the mains supply are normal or not;
s3: when detecting that the mains supply has no voltage or current, starting an emergency illuminating lamp;
s4: when the voltage and the current of the mains supply are detected, the mains supply is normal;
s5: the illumination intensity of the commercial power illuminating lamp is detected through the illumination intensity detecting unit, the illumination intensity of the commercial power illuminating lamp is compared with preset light-operated induction parameters, the light-operated switch device is switched off or switched on according to a comparison result, and the main control unit controls the emergency generator to be paused or started according to the on-off state or the on-off state of the light-operated switch device so as to control the on-off state of the emergency illuminating lamp.
In this embodiment, the specific process of step S5 is:
s501, when the illumination intensity of the commercial power illuminating lamp is smaller than the set lower limit I of the light-operated induction parameter0When the emergency generator is started, the light control switch device is switched on, the main control unit receives a switching-on signal of the light control switch device to give a damage decision of the commercial power illuminating lamp, and controls the emergency generator to be started, and then the emergency illuminating lamp is switched on and lighted;
s502, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0Less than the upper limit I of the optically controlled induction parameter1And the duration of the illumination intensity is longer than the set time t0When the emergency lighting device is powered on, the light-operated switch device is switched on, the main control unit receives a switching-on signal of the light-operated switch device to give out a decision that the commercial power lighting lamp is low in continuous voltage and insufficient in illumination intensity, and controls the emergency generator to be started, so that the emergency lighting lamp is powered on;
s503, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0And is smaller than the upper limit I of the light-operated sensing parameter1And the duration of the illumination intensity is less than the set time t0When the emergency generator is powered off, the light-operated switch device is switched off, the main control unit receives a switching-off signal of the light-operated switch device to give a decision that the voltage of the commercial lighting lamp is short and low, the illumination intensity is short and weak, the emergency generator is controlled to pause, and the emergency lighting lamp is powered off;
s504: the illumination intensity of the commercial power illuminating lamp is greater than the upper limit I of the light-operated induction parameter1And if the light-operated switch device is switched off, the main control unit gives a normal decision of the commercial power illumination.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the invention, the multi-criterion automatic switching emergency lighting system based on the illumination intensity is constructed, the illumination intensity detection unit is used for detecting the illumination intensity of the commercial power illuminating lamp, and further judgment is carried out based on the detection result so as to control the on-off of the emergency illuminating lamp, so that the automation and the intellectualization of illumination switching are realized, the switching flexibility of the lighting system is improved, and the lighting switching efficiency is improved.
Drawings
Fig. 1 is a block diagram of a multi-criterion automatic switching emergency lighting system based on illumination intensity according to the present invention.
Fig. 2 is a flow chart of a multi-criterion automatic switching emergency lighting method based on illumination intensity according to the invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
As shown in fig. 1, a first aspect of the present invention provides a multi-criterion automatic switching emergency lighting system based on illumination intensity, including: the emergency lighting system comprises a main control unit, a mains supply state monitoring unit, a charging module, a storage battery, an emergency generator, an illumination intensity detection unit, a photoswitch device, an emergency lighting lamp and a mains supply lighting lamp, wherein the input end of the charging module is connected to a mains supply, the output end of the charging module is respectively connected to the power input end of the main control unit and the input end of the storage battery, the output end of the storage battery is connected to the power input end of the main control unit, the acquisition end of the mains supply state monitoring unit is connected to the mains supply, the output end of the mains supply state monitoring unit is connected to the input end of the main control unit, the control output end of the main control unit is connected to the control input end of the emergency generator, the power output end of the emergency generator is connected with, the output end of the light-operated switch device is connected to the input end of the main control unit, and the mains supply is electrically connected with the mains supply illuminating lamp.
In a specific embodiment, the illumination intensity detection unit is configured to detect an illumination intensity of a mains lighting lamp, compare the illumination intensity of the mains lighting lamp with a light-operated sensing parameter by setting the light-operated sensing parameter, and provide a criterion for turning on or off a light-operated switching device, where the illumination intensity detection unit may be implemented by a photo-resistor, a photodiode, and a photo-transistor. In this scheme, the light-operated switching device is a light-operated relay.
In this scheme, the input of the module of charging is connected to mains supply through first switch.
More specifically, the charging module converts an alternating current mains supply into a direct current power supply for the main control unit to operate, and meanwhile, carries out floating charging on the storage battery. The type of the charging module can be determined according to the mainboard voltage of the power supply equipment, and the specific type of the charging module is not limited in the invention.
In this scheme, the collection end of mains supply state monitoring unit is connected to mains supply through the second switch.
More specifically, the mains supply state monitoring unit may monitor the voltage and the current of the mains supply through a voltage transformer and a current transformer.
In the scheme, the power output end of the emergency generator is connected with the emergency illuminating lamp through the third switch.
More particularly, the emergency generator is used for providing power for an emergency lighting lamp.
In the scheme, the main control unit is a programmable logic controller or a 51 single chip microcomputer.
More specifically, the main control unit may adopt a programmable logic controller or a 51-chip microcomputer, and the main control unit receives a signal of turning on or off the photoswitch device and controls the emergency generator to be paused or started according to the turning on or off of the photoswitch device.
In the scheme, the storage battery is a lead-acid storage battery or a lithium battery.
More specifically, the storage battery is used as a backup direct-current working power supply for the operation of the main control unit, and when a power supply loop of the charging module is powered off, the storage battery provides temporary power supply for the main control unit. The capacity of the storage battery is determined according to the power of the power supply equipment, and the storage battery can adopt a lead-acid storage battery or a lithium battery.
As shown in fig. 2, a second aspect of the present invention provides a multi-criterion automatic switching emergency lighting method based on illumination intensity, comprising the following steps:
s1: setting light-operated induction parameters for the illumination intensity detection unit, and determining the corresponding illumination intensity value when the emergency lighting is started or stopped;
s2: monitoring the voltage and the current of the mains supply by using a mains supply state monitoring unit to determine whether the voltage and the current of the mains supply are normal or not;
s3: when detecting that the mains supply has no voltage or current, starting an emergency illuminating lamp;
s4: when the voltage and the current of the mains supply are detected, the mains supply is normal;
s5: the illumination intensity of the commercial power illuminating lamp is detected through the illumination intensity detecting unit, the illumination intensity of the commercial power illuminating lamp is compared with preset light-operated induction parameters, the light-operated switch device is switched off or switched on according to a comparison result, and the main control unit controls the emergency generator to be paused or started according to the on-off state or the on-off state of the light-operated switch device so as to control the on-off state of the emergency illuminating lamp.
In this embodiment, the specific process of step S5 is:
s501, when the illumination intensity of the commercial power illuminating lamp is smaller than the set lower limit I of the light-operated induction parameter0When the emergency generator is started, the light control switch device is switched on, the main control unit receives a switching-on signal of the light control switch device to give a damage decision of the commercial power illuminating lamp, and controls the emergency generator to be started, and then the emergency illuminating lamp is switched on and lighted;
s502, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0Less than the upper limit I of the optically controlled induction parameter1And the duration of the illumination intensity is longer than the set time t0When the emergency lighting device is powered on, the light-operated switch device is switched on, the main control unit receives a switching-on signal of the light-operated switch device to give out a decision that the commercial power lighting lamp is low in continuous voltage and insufficient in illumination intensity, and controls the emergency generator to be started, so that the emergency lighting lamp is powered on;
s503, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0And is smaller than the upper limit I of the light-operated sensing parameter1And the duration of the illumination intensity is less than the set time t0When the emergency generator is powered off, the light-operated switch device is switched off, the main control unit receives a switching-off signal of the light-operated switch device to give a decision that the voltage of the commercial lighting lamp is short and low, the illumination intensity is short and weak, the emergency generator is controlled to pause, and the emergency lighting lamp is powered off;
s504: the illumination intensity of the commercial power illuminating lamp is greater than the upper limit I of the light-operated induction parameter1And if the light-operated switch device is switched off, the main control unit gives a normal decision of the commercial power illumination.
The illumination intensity of the commercial power illuminating lamp is monitored in real time through the illumination intensity detection unit, and when the starting condition is met, the main control unit can quickly start emergency illumination; when the stop condition is met, the main control unit of the emergency lighting system can rapidly stop emergency lighting. And then realize quick response nature, flexibility and the intelligent requirement of quick noninductive start-stop emergency lighting, improve production efficiency.
According to the invention, the mains supply state monitoring and the damage judgment of the mains supply illuminating lamp are realized through the mains supply state monitoring unit, and the versatility of the illuminating system is realized.
The invention realizes the intelligent automatic start-stop judgment of emergency lighting, liberates the human capital for manually starting the emergency lighting and avoids the potential safety hazards of personal electric shock accidents and the like; meanwhile, a UPS (uninterrupted power supply) is not needed, so that the economic cost is reduced; the system device has simple structure, simple and convenient operation, low cost and convenient batch production.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a many criterions automatic switching emergency lighting system based on illumination intensity which characterized in that includes: the emergency lighting system comprises a main control unit, a mains supply state monitoring unit, a charging module, a storage battery, an emergency generator, an illumination intensity detection unit, a photoswitch device, an emergency lighting lamp and a mains supply lighting lamp, wherein the input end of the charging module is connected to a mains supply, the output end of the charging module is respectively connected to the power input end of the main control unit and the input end of the storage battery, the output end of the storage battery is connected to the power input end of the main control unit, the acquisition end of the mains supply state monitoring unit is connected to the mains supply, the output end of the mains supply state monitoring unit is connected to the input end of the main control unit, the control output end of the main control unit is connected to the control input end of the emergency generator, the power output end of the emergency generator is connected with, the output end of the light-operated switch device is connected to the input end of the main control unit, and the mains supply is electrically connected with the mains supply illuminating lamp.
2. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the input terminal of the charging module is connected to a mains power supply through a first switch.
3. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the collection end of the mains power state monitoring unit is connected to a mains power supply through a second switch.
4. The illumination intensity-based multi-criterion automatic-switching emergency lighting system according to claim 1, wherein the power output end of the emergency generator is connected with the emergency lighting lamp through a third switch.
5. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the main control unit is a programmable logic controller or a 51-chip microcomputer.
6. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the mains power state monitoring unit comprises a voltage transformer and a current transformer.
7. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the storage battery is a lead-acid storage battery or a lithium battery.
8. The illumination intensity-based multi-criterion automatic switching emergency lighting system according to claim 1, wherein the photoswitch device is a photoswitch relay.
9. A multi-criterion automatic switching emergency lighting method based on illumination intensity is characterized by comprising the following steps:
s1: setting light-operated induction parameters for the illumination intensity detection unit, and determining the corresponding illumination intensity value when the emergency lighting is started or stopped;
s2: monitoring the voltage and the current of the mains supply by using a mains supply state monitoring unit to determine whether the voltage and the current of the mains supply are normal or not;
s3: when detecting that the mains supply has no voltage or current, starting an emergency illuminating lamp;
s4: when the voltage and the current of the mains supply are detected, the mains supply is normal;
s5: the illumination intensity of the commercial light is detected through the illumination intensity detection unit, the illumination intensity of the commercial light is compared with preset light-operated induction parameters, the light-operated switch device is switched off or switched on according to a comparison result, the main control unit controls the emergency generator to be paused or started according to the on-off state or the on-off state of the light-operated switch device, and then the emergency light is controlled to be switched on or off.
10. The illumination intensity-based multi-criterion automatic switching emergency lighting method according to claim 9, wherein the specific process of step S5 is as follows:
s501, when the illumination intensity of the commercial power illuminating lamp is smaller than the set lower limit I of the light-operated induction parameter0When the emergency generator is started, the light control switch device is switched on, the main control unit receives a switching-on signal of the light control switch device to give a damage decision of the commercial power illuminating lamp, and controls the emergency generator to be started, and then the emergency illuminating lamp is switched on and lighted;
s502, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0Less than the upper limit I of the optically controlled induction parameter1And the duration of the illumination intensity is longer than the set time t0When the emergency lighting device is powered on, the light-operated switch device is switched on, the main control unit receives a switching-on signal of the light-operated switch device to give out a decision that the commercial power lighting lamp is low in continuous voltage and insufficient in illumination intensity, and controls the emergency generator to be started, so that the emergency lighting lamp is powered on;
s503, when the illumination intensity of the commercial power illuminating lamp is larger than the set lower limit I of the light-operated induction parameter0And is smaller than the upper limit I of the light-operated sensing parameter1And the duration of the illumination intensity is less than the set time t0When the emergency generator is powered off, the light-operated switch device is switched off, the main control unit receives a switching-off signal of the light-operated switch device to give a decision that the voltage of the commercial lighting lamp is short and low, the illumination intensity is short and weak, the emergency generator is controlled to pause, and the emergency lighting lamp is powered off;
s504: illumination intensity of commercial power illuminating lampDegree greater than the upper limit I of the optically controlled induction parameter1And if the light-operated switch device is switched off, the main control unit gives a normal decision of the commercial power illumination.
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