CN114071846A - Ad-hoc network type partition cooperative control underground garage illumination control system and method - Google Patents
Ad-hoc network type partition cooperative control underground garage illumination control system and method Download PDFInfo
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Abstract
The invention provides an ad hoc network type partition cooperative control underground garage illumination control system and method, which comprises the following steps: the system comprises a lighting lamp, an illumination detection unit, a traffic flow detection unit and an upper computer system which are arranged in an underground garage; the lighting lamps are connected to an upper computer system through an ad hoc network module and an ad hoc network through a wireless network; the illumination detection unit detects the illumination inside and outside the garage in real time, and the traffic flow detection unit detects the traffic flow in real time; the upper computer system outputs the illumination reference values of the garage entrance and exit, the garage inner lane, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and the control unit feeds the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp. By adopting the illumination closed-loop negative feedback control, the problem that illumination is influenced by light attenuation is well solved, and the lamp can dynamically detect illumination in real time, so that the output of the LED lamp is adjusted, and the illumination comfort is guaranteed.
Description
Technical Field
The invention belongs to the technical field of illumination control, and particularly relates to an ad hoc network type partition cooperative control underground garage illumination control system and method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The underground garage is used for lighting by large households, and lamps in the underground garage are turned on for 24 hours, so that a large amount of electric energy is consumed every moment.
The underground garage lighting technology transformation is developed in three stages: the LED is transformed to replace a fluorescent lamp, a microwave/human body infrared induction LED lamp tube and an Internet of things type lighting lamp.
The first stage is as follows: the LED is transformed to replace a fluorescent lamp, the 18W LED replaces a 36W fluorescent lamp, the total power is reduced on the premise of reaching the same brightness, but the LED lamp is continuously lightened, the power is consumed in a white mode, and the illumination according to requirements is not achieved.
And a second stage: a microwave/human body infrared induction detector is added on a single LED lamp, so that the lamp is turned on when a person comes, and the lamp is turned off when the person walks. Although the mode can save electricity, the mode is rough, the lamp in the local range can be lightened only when a person is close to the lamp, the lamp in the front of the traffic lane cannot be lightened, the visual field blind area is caused, the fear psychology is generated, and the collision accident is easily caused.
And a third stage: the Internet of things type LED illuminating lamp solves the problem that a single microwave/infrared LED lamp can only light a certain area, and the Internet of things type LED can control the whole lane to be on or off. The problem of the view blind area of the single-exhibition LED is solved by the mode, but the control mode is rough, and the lamps of the whole land are all lightened as long as one vehicle enters and exits the area.
Analysis of existing patents:
the invention patent application 201810420873.6 discloses an intelligent lighting circuit, system and lighting control method for an underground garage, wherein an infrared sensor is mounted on a single LED lamp, and when a human body enters a detection area, the lamp is lighted.
The invention patent application 201810481153.0 discloses an intelligent LED lighting control and energy consumption monitoring system for an underground garage. The invention solves the problem of the blind area of the visual field caused by the induction of a single LED lamp, but the invention does not take the indexes of the traffic flow and the pedestrian flow into consideration, and the illumination is consistent, and the illumination is fully turned on or fully turned off no matter how many vehicles are in the garage.
The utility model discloses a patent application 201420542095.5 discloses a garage access & exit intelligence lighting system, and this application has set up illuminance sensor outside the garage, detects the outer illuminance in garage, and according to the outer illuminance change in garage, the luminance output of adjustment illumination lamps and lanterns. The utility model tries to adjust the brightness of the lamp to reduce the glare interference caused by the brightness difference inside and outside the garage to human eyes, but the feedback control of the illumination output of the lamp is lacked, the brightness of the lamp is adjusted blindly, and the control is not accurate; the light attenuation effect of the lamp is not considered, and the illumination control effect is gradually reduced along with the time extension.
The utility model discloses a patent application 201620627422.6 discloses a garage system, and this application is based on wireless communication, carries out dimming control to every exhibition lamps and lanterns in the garage, and the system wiring has been practiced thrift to this mode, has reduced construction cost. However, the application does not further explain that an advanced intelligent control strategy is adopted to carry out the garage illumination energy-saving control, the influence of people flow and traffic flow is not considered, and the real illumination on demand is not realized.
In view of the above, the following problems exist in the prior art, and further improvements are needed:
1. the single microwave and infrared induction type LED lamp cannot realize group control, has a visual field blind area, is easy to have a collision accident, and in addition, an underground garage belongs to a closed space and is easy to cause panic psychology.
2. Although the existing networking type lamp can control the whole area, the factors such as traffic flow, people flow and the like are not considered, the control is simple and rough, the on-off is directly controlled as long as people enter and exit, and the illumination is not really provided according to the needs.
3. The illumination outside the entrance and exit of the underground garage is very strong, the illumination in the garage is darker, the bright and dark difference is strong, the eyes of people can not adapt in a short time when entering the dark place from the bright light or entering the bright light environment from the dark place, and a time delay exists, namely 'bright adaptation' and 'dark adaptation'. The delay can easily cause the collision accident at the entrance and exit of the garage.
4. In the prior art, places such as garage entrances and exits, lanes, parking spaces, intersection areas and the like are not divided, and illumination is carried out according to requirements.
5. The LED lighting lamp in the prior art cannot sense real output brightness, only outputs 10% -100% of preset power when leaving a factory, and cannot detect whether the brightness meets the standard requirement.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides an ad hoc network type partition cooperative control underground garage illumination control system, which realizes illumination of the underground garage according to requirements.
In order to achieve the above object, one or more embodiments of the present invention provide the following technical solutions:
in a first aspect, an ad hoc network type partition cooperative control underground garage illumination control system is disclosed, comprising:
the system comprises a lighting lamp, an illumination detection unit, a traffic flow detection unit and an upper computer system which are arranged in an underground garage; the lighting lamps are connected to an upper computer system through an ad hoc network module and an ad hoc network through a wireless network; the illumination detection unit detects the illumination inside and outside the garage in real time, and the traffic flow detection unit detects the traffic flow in real time;
the upper computer system outputs the illumination reference values of the garage entrance and exit, the garage inner lane, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and the control unit feeds the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp.
As an implementation example, the lighting fixture includes an automatic fault diagnosis module, which is used for detecting current, voltage and illumination, responding in two stages, and performing adaptive actions according to different degrees.
As an implementation example, the upper computer system comprises a two-input single-output fuzzy controller, the brightness difference inside and outside the garage is used as a first input quantity of the controller, the traffic flow is used as a second input quantity of the controller, and the entrance brightness reference value is used as an output quantity of the controller.
As a further embodiment, the fuzzy linguistic variables of the inside and outside brightness difference and the traffic flow of the garage are as follows: { NB, NM, NS, ZO, PS, PM, PB };
the linguistic variables for the output illumination are: { NB, NM, NS, ZO, PS, PM, PB };
the linguistic variables have the following meanings in sequence:
NB is large negative, NM is heavy, NS is small negative, ZO is zero, PS is small positive, PM is middle, PB is large positive.
As a further embodiment, a fuzzy rule table is built using the form "IF-THEN" based on fuzzy inference.
As a further embodiment, the blur is resolved by a weighted average method, and the output value of the entrance/exit illuminance E is:
in the formula ujFor fuzzy reasoning of the jth output quantity, mucj(uj) Is an output ujA membership value of.
As a further implementation manner, the illumination values of the garage entrance, the garage exit, the traffic lane and the intersection area parking space are respectively as follows:
illuminance value at the garage entrance and exit: lth1 ═ K × E; lth2 ═ 0.5K × E;
lane illumination value: lin ═ min (0.3K × E, 30);
intersection illumination value: lrch ═ max (0.3K × E, 35);
parking space illuminance value: lp is 5 lx.
As a further implementation manner, an illuminance detection circuit is arranged on the lighting fixture, after the lighting fixture receives the reference illuminance output by the upper computer system, the output of the LED driver is adjusted, and the illuminance detection circuit feeds back to the control circuit to adjust the illuminance value set by the upper computer system output by the lighting fixture.
As a further implementation mode, in a set period, the automatic fault diagnosis module collects the voltage, the current and the output illumination of the LED lamp in real time;
when the voltage exceeds the allowable value U1 of the LED lamp, actively alarming to prompt overvoltage; when the current exceeds the upper limit value, U2 is automatically shut down to protect the lamp, U1 is less than U2;
when the current exceeds an allowable value I1 of the LED lamp, actively alarming to prompt overcurrent; when the current exceeds the upper limit value I2, the lamp is automatically shut down to protect the lamp, I1 is less than I2;
and when the LED lamp is adjusted to the maximum output brightness Emax and the output illumination is lower than the rated illumination by a set threshold value, actively alarming.
In a second aspect, an ad hoc network type partition cooperative control underground garage illumination control method is disclosed, which comprises the following steps:
and outputting the illumination reference values of the garage entrance and exit, the traffic lane in the garage, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and feeding the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp.
The above one or more technical solutions have the following beneficial effects:
1. according to the invention, the garage is divided into an entrance area, a driveway area, a parking space area and a meeting area according to the operation characteristics of the garage, the characteristics and the operation characteristics of different areas are analyzed, different illumination setting methods are provided, on the premise of ensuring the driving safety and the driving comfort, the illumination on demand is realized, and the electric energy consumption is greatly reduced.
2. The method for setting the given illumination of the entrance area integrates double factors of traffic flow and outdoor illumination, and considers the outdoor illumination, thereby eliminating visual delay caused by light and shade adaptation of a driver and reducing the full occurrence of traffic collision accidents at the entrance and the exit of a garage; the traffic flow is considered, and the illumination is dynamically adjusted according to the traffic flow, so that the illumination according to the requirement is embodied, and the energy-saving green illumination is realized. The fuzzy controller is used to calculate the given illuminance of the entrance and the exit by taking the traffic flow and the outdoor illuminance as input. The fuzzy controller belongs to an intelligent controller, has the excellent characteristics of strong anti-interference capability, no need of an accurate mathematical model and strong adaptability, and is suitable for the complex environment of an underground garage.
3. The invention designs illumination closed-loop negative feedback, and overcomes the defect that the brightness of the LED is blindly adjusted without knowing the real output illumination in the prior art. And the LED has light attenuation in the using process, so that the output illumination is influenced, the illumination closed-loop negative feedback control method well solves the problem that the illumination is influenced by the light attenuation, and the lamp can dynamically detect the illumination in real time, so that the output of the LED lamp is adjusted, and the illumination comfort is guaranteed.
4. Lamps in the underground garage are large in installation quantity, maintenance and management are carried out manually, the efficiency is low, and the intensity of workers is increased. The invention develops a fault self-diagnosis module integrated in a lamp. The module consists of voltage detection, current detection and illumination detection. When the parameters such as voltage, current, illumination intensity exceed the set values, the alarm can be given in time to remind personnel to replace. The invention also adds an illumination detection module, and when the maximum output illumination of the lamp is lower than 50% of the output illumination of the factory, the light attenuation is considered to be serious, and the replacement is reminded. The problem of on-site lamp blind replacement is solved.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a general block diagram of an ad hoc network type partitioned cooperative control underground garage lighting system according to an embodiment of the present invention;
FIG. 2 is a frame diagram of an intelligent lighting fixture for an underground garage according to an embodiment of the invention;
FIG. 3 is a flowchart of the overall operation of an ad hoc network type zone cooperative control underground garage lighting system according to an embodiment of the present invention;
FIG. 4 is a block diagram of a fuzzy controller according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating an input variable membership function according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating an output variable membership function according to an embodiment of the present invention;
FIG. 7 is a plan view of a garage according to an embodiment of the present invention;
FIG. 8 is a chart of a zone illumination division for an underground garage according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of an illumination closed-loop control according to an embodiment of the present invention;
FIG. 10 is a flowchart illustrating an exemplary illumination closed-loop control method;
FIG. 11 is a voltage diagnostic flow chart according to an embodiment of the present invention;
FIG. 12 is a flow chart of current diagnostics according to an embodiment of the present invention;
FIG. 13 is a flowchart illustrating illumination diagnosis according to an embodiment of the present invention;
FIG. 14 is a schematic diagram of an LED dimming driving circuit according to an embodiment of the present invention;
FIG. 15 is a schematic diagram of an illuminance detection circuit according to an embodiment of the invention;
FIG. 16 is a schematic diagram of a voltage detection circuit according to an embodiment of the present invention;
FIG. 17 is a schematic diagram of a current detection circuit according to an embodiment of the invention.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
The general idea provided by the invention is as follows:
the invention provides an ad hoc network type partition cooperative control underground garage illumination control system which comprises an upper computer and an intelligent illumination lamp. The intelligent lighting lamp is composed of an LED driving module, a fault diagnosis module, an ad hoc network module, an illumination detection module and a traffic flow detection module. And the illumination sensors are arranged outside and in the garage, so that the brightness inside and outside the garage is detected in real time and uploaded to a background control system. And a traffic flow sensor is arranged on the lamp at the key point position, and is used for detecting the traffic flow and uploading the traffic flow to a control system. The control system calculates illumination reference values of the garage entrance and exit, the garage inner traffic lane, the intersection area and the parking space according to the brightness difference between the inside and the outside of the garage and the traffic flow (pedestrian flow). The illumination closed-loop negative feedback control unit can detect the luminous flux emitted by the lamp in real time and realize closed-loop automatic adjustment of output illumination. Thereby accurately giving the most suitable brightness. The fault diagnosis module disclosed by the invention can detect overvoltage, overcurrent and light attenuation conditions of the lamp in real time, early warn, improve the management efficiency and reduce the maintenance intensity. The invention solves the problems of providing illumination and energy-saving illumination according to the requirement, can ensure good illumination comfort and greatly saves electric energy. Meanwhile, the problem of human eye light and shade adaptation caused by the brightness difference outside the garage is solved, and accidents at the entrance and the exit are greatly reduced.
The underground garage control center is provided with an upper computer which is responsible for the operation interaction of users, the execution of the commands of the users and the real-time display of data to the users, and each set of lamps is internally provided with a controller which is responsible for the execution of the instructions of the upper computer (the users). See fig. 1, 2 for details.
A controller is installed in each set of lamps, and the controller has the main functions of completing field detection and control of ad hoc network control, illumination detection, LED lamp illumination closed-loop negative feedback control, traffic flow detection, fault diagnosis and the like.
Example one
Referring to the attached drawing 1, the embodiment discloses an ad hoc network type partition cooperative control underground garage illumination control system, and the whole system is composed of an upper computer and an intelligent illumination lamp.
Referring to fig. 2, the intelligent lighting lamp is composed of an LED driving module, a fault diagnosis module, an ad hoc network module, an illuminance detection module, and a traffic flow detection module.
The intelligent lighting lamps are connected to the upper computer management system through the ad hoc network module and the wireless network. The wireless network autonomous networking has the advantages that no weak current cable wiring is needed, the investment cost is reduced, the construction progress is improved, and the newly-built and improved construction strength is reduced.
The general work flow chart of the invention is shown in the attached figure 3, and the illumination sensors are arranged at the entrance and exit of the garage, the traffic lane, the vehicle intersection area and the parking space, and are used for detecting the illumination inside and outside the garage in real time and uploading the illumination to the background control system. Microwave sensors are arranged on lamps at the entrance and exit of the garage, the traffic lane and the vehicle intersection area, and are used for detecting the traffic flow and uploading to a control system. The control system gives out illumination reference values of the garage entrance and exit, the garage inner lane, the intersection area and the parking space according to the brightness difference between the inside and the outside of the garage and the traffic flow (pedestrian flow).
The intelligent lighting lamp adjusts the PWM dimming module of the LED lamp according to the given reference value, and the illuminance reference value is accurately given by utilizing the illuminance closed-loop negative feedback control of the invention. The illumination is provided according to actual needs.
The lamp automatic fault diagnosis module detects current, voltage and illumination, responds in two stages, and makes adaptive actions according to different degrees.
The following description is made of a specific circuit of the present application:
referring to fig. 14, the LED dimming driving circuit:
the driving circuit consists of overcurrent protection, overvoltage protection, current detection, voltage detection, PWM production and DC/DC driving.
A fuse F1 is added to protect against overload and short circuit.
A piezoresistor RV1 is added to protect overvoltage and surge.
A current detection interface and a voltage detection interface are reserved, and support is provided for a control system to acquire current and voltage of the LED lamp.
Referring to fig. 15, the illuminance detection circuit is composed of a bridge resistor network, a subtractor, and a driving amplifier circuit.
LDR is a photosensitive resistor, the LDR, an adjustable resistor VR1 and a fixed resistor R1R 2 form a bridge network, and the network is used for extracting external photosensitive strong and weak signal changes and sensing illumination intensity changes.
The operational amplifier OP1, RF3, and R4 constitute a subtractor that converts the illuminance change signal into a voltage signal.
The triode TR1, the resistors R4, R5, R6 and R7 form a common collector amplifying circuit, the circuit can improve input impedance, reduce output impedance and improve current amplification factor, and weak illumination signals can be further amplified and converted into current signals identified by the controller.
Referring to fig. 16, the voltage detection circuit is composed of a bridge network, a differential amplifier circuit, and an inverting amplifier circuit.
The resistors R9, R10, R11 and R12 form a bridge network circuit, and R11 is a high-precision resistor and is connected in parallel in the measured circuit. The bridge network circuit is used for recognizing the voltage change of the measured circuit.
The operational amplifier QA1 and the resistor R1R 2R 3R 4 constitute a differential amplifier circuit, which is used for differentially amplifying voltage changes of the bridge network circuit. Since the reference voltage is fixed, the measured voltage can be identified by a difference.
The operational amplifier QA2 and the resistor R5R 6R 7 form an inverting amplifier which is used for amplifying the measured weak voltage signal and adjusting the amplified weak voltage signal to a voltage range which can be identified by a controller in an equal proportion.
Referring to fig. 17, the current detection circuit U1 is an integrated current detection circuit chip, R1 is a high-precision resistor, and R1 is connected in series in the measured loop. Through the established current detection circuit, the accurate measurement of the current can be realized.
The invention provides the most appropriate illumination according to the requirement, thereby saving the electric energy, ensuring the illumination of the garage, ensuring the driving safety, eliminating the blind area of the visual field and improving the illumination comfort level.
According to the garage operation characteristics, the garage is divided into an entrance area, a driveway area, a parking space area and a meeting area, and different illuminations are provided according to different areas.
The invention integrates traffic flow factors, divides the traffic flow into different grades, provides corresponding illumination and really realizes energy conservation and comfort.
The invention integrates the condition of the brightness outside the garage, and adjusts the brightness at the entrance and exit in real time according to the brightness outside the garage, so that the illumination of the entrance and exit can be well adapted to the 'light adaptation' and 'dark adaptation' of human eyes, thereby solving the problem of frequent traffic collision at the entrance and exit.
The lamp has a fault diagnosis function, and can inform a background in time when the lamp is overloaded, undervoltage, overvoltage and luminous decay, so as to remind workers to replace the lamp in time. Greatly reduces the intensity of workers and improves the maintenance efficiency of the garage.
Example two
The embodiment aims to provide an ad hoc network type partition cooperative control underground garage illumination control method, which comprises the following steps:
and outputting the illumination reference values of the garage entrance and exit, the traffic lane in the garage, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and feeding the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp.
The fuzzy control strategy based on the brightness outside the garage and the traffic flow is introduced below, in order to solve the problems that human eyes are uncomfortable and traffic collision accidents are easy to happen due to large brightness difference inside and outside the garage, and meanwhile, the energy-saving illumination is realized by combining the traffic flow (the traffic flow), the invention utilizes a fuzzy controller with two inputs and one output, and the fuzzy controller is shown in attached figures 4 and 5.
1) Determining the input quantity:
taking the brightness difference between the inside and the outside of the garage as EC as a first input;
EC＝EO+EI
in the formula, EC is a luminance difference;
EO is the garage outside brightness;
EI is the brightness in the garage;
the vehicle flow F is used as a second input;
an entrance luminance reference E as output;
the language variables of the garage internal and external brightness difference EC and the traffic flow F are as follows: { NB, NM, NS, ZO, PS, PM, PB }, see FIG. 6.
The linguistic variables for output illumination E are: { NB, NM, NS, ZO, PS, PM, PB }, see FIG. 7.
The linguistic variables have the following meanings in sequence:
NB negative large NM load NS negative small ZO zero PS positive small PM positive large PB.
Fuzzy reasoning:
in the actual control, the following experience is considered,
(1) when the brightness difference EC inside and outside the garage is larger and the traffic flow is also larger, the brightness of the entrance and the exit should be larger.
(2) The brightness difference EC inside and outside the garage is moderate, and when the traffic flow is large, the brightness of the entrance and the exit should be large.
(3) The brightness difference EC inside and outside the garage is moderate, and when the traffic flow is moderate, the brightness of the entrance and the exit should be moderate. .
(4) The brightness difference EC inside and outside the garage is moderate, and when the traffic flow is small, the brightness of the entrance and the exit should be moderate. .
(5) The difference EC between the inside brightness and the outside brightness of the garage is small, and when the traffic flow is moderate, the brightness of the entrance and the exit is moderate.
The brightness difference EC inside and outside the garage is smaller, and when the traffic flow is smaller, the brightness of the entrance and the exit should be smaller.
Using the above experience, a fuzzy rule table, Table 1, was built using the form "IF-THEN".
TABLE 1 fuzzy control rules Table
The fuzzy inference adopts a MAMDANI minimum operation method:
μcj(uj)＝min(μE(E),μEC(EC))
determining an output quantity:
linguistic variables obtained by fuzzy inference need to be converted into accurate quantities to be applied to a controlled object. Weighted averaging is used herein to deblur. The output value of the entrance/exit illuminance E is:
in the formula ujFor fuzzy reasoning of the jth output quantity, mucj(uj) Is an output ujA membership value of.
And (3) carrying out partition cooperative control measurement, wherein the underground garage is subdivided into the following areas according to the property characteristics, and the areas are shown in a table 2:
TABLE 2
In order to reduce glare on human eyes caused by external strong light of the garage, the invention designs a garage illumination method with gradually changed illumination. The specific control flow is as follows, and the result is shown in fig. 8.
(1) Illumination value design of garage entrance and exit
Lth1＝K*E
Lth2＝0.5K*E
K is the reduction coefficient of the entrance illumination, and is detailed in the following table:
(2) lane illumination value design
Lin＝min(0.3K*E,30)
(3) Illumination value design of intersection area
Ltch＝max(0.3K*E,35)
(4) Parking space illuminance value design
Lp＝5(Lx)
Where LX is a name for illuminance unit lux.
The invention also discloses illumination closed-loop negative feedback control: referring to fig. 9 and 10, an illuminance detection circuit is arranged on each intelligent lighting fixture, and after the lighting fixture receives the reference illuminance given by the system, the output of the LED driver is adjusted, and the illuminance detection circuit feeds back the reference illuminance to the control circuit to adjust the output of the lighting fixture, so that the illuminance value set by the system can be accurately output.
The defect that the brightness of the LED is adjusted blindly without knowing the real output illumination in the prior art is overcome. And the LED has light attenuation in the using process, so that the output illumination is influenced, the illumination closed-loop negative feedback control method well solves the problem that the illumination is influenced by the light attenuation, and the lamp can dynamically detect the illumination in real time, so that the output of the LED lamp is adjusted, and the illumination comfort is guaranteed.
Based on underground garage lamps and lanterns installation quantity is huge, relies on the manual work to go to maintenance management, not only inefficiency has increased workman's intensity again. The invention develops a fault self-diagnosis module integrated in a lamp. The module consists of voltage detection, current detection and illumination detection.
And in a set period, the fault self-diagnosis module acquires the voltage, the current and the output illumination of the LED lamp in real time.
(1) Referring to fig. 11, when the voltage exceeds the LED lamp allowable value U1, an alarm is actively issued to prompt an overvoltage; and when the current exceeds the upper limit value, U2 is automatically shut down to protect the lamp. (U1< U2)
(2) Referring to fig. 12, when the current exceeds the LED lamp allowable value I1, an alarm is given actively to indicate an overcurrent; and when the current exceeds the upper limit value I2, the lamp is automatically shut down to protect the lamp. (I1< I2)
(3) Referring to fig. 13, when the LED lamp is adjusted to the maximum output brightness Emax, the output illuminance is decreased by 50% (the value can be set) from factory to alarm actively, which prompts that the LED lamp is seriously degraded and needs to be replaced.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. Ad-hoc network type partition cooperative control underground garage illumination control system is characterized by comprising:
the system comprises a lighting lamp, an illumination detection unit, a traffic flow detection unit and an upper computer system which are arranged in an underground garage; the lighting lamps are connected to an upper computer system through an ad hoc network module and an ad hoc network through a wireless network; the illumination detection unit detects the illumination inside and outside the garage in real time, and the traffic flow detection unit detects the traffic flow in real time;
the upper computer system outputs the illumination reference values of the garage entrance and exit, the garage inner lane, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and the control unit feeds the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp.
2. The ad hoc network type partition cooperative control underground garage lighting control system of claim 1, wherein the lighting fixture comprises an automatic fault diagnosis module for detecting current, voltage and illumination, responding in two stages, and performing adaptive actions according to different degrees.
3. The ad hoc network type partition cooperative control underground garage illumination control system of claim 1, wherein the upper computer system comprises a two-input single-output fuzzy controller, the brightness difference inside and outside the garage is used as the first input quantity of the controller, the traffic flow is used as the second input quantity of the controller, and the entrance brightness reference value is used as the output quantity of the controller.
4. The ad hoc network type partition cooperative control underground garage lighting control system of claim 1, wherein an illuminance detection circuit is arranged on the lighting fixture, the lighting fixture adjusts the output of the LED driver after receiving the reference illuminance output by the upper computer system, and the illuminance detection circuit feeds back the output of the LED driver to the control circuit to adjust the illuminance value set by the upper computer system output by the lighting fixture.
5. The ad hoc network type partition cooperative control underground garage illumination control method is characterized by comprising the following steps:
and outputting the illumination reference values of the garage entrance and exit, the traffic lane in the garage, the intersection area and the parking space according to the brightness difference and the traffic flow inside and outside the garage, and feeding the reference values back to the illumination lamp for adjusting the illumination of the illumination lamp.
6. The ad hoc network type partition cooperative control underground garage illumination control method as claimed in claim 5, wherein a brightness difference between inside and outside of the garage is used as a first input quantity of the controller, a traffic flow is used as a second input quantity of the controller, and an entrance brightness reference value is used as an output quantity of the controller.
7. The ad hoc network type partition cooperative control underground garage illumination control method of claim 6, wherein the fuzzy linguistic variables of the inside and outside brightness difference and the traffic flow of the garage are as follows: { NB, NM, NS, ZO, PS, PM, PB };
the linguistic variables for the output illumination are: { NB, NM, NS, ZO, PS, PM, PB };
the linguistic variables have the following meanings in sequence:
NB is large negative, NM is heavy, NS is small negative, ZO is zero, PS is small positive, PM is middle, PB is large positive.
8. The ad hoc network type partition cooperative control underground garage illumination control method of claim 5, wherein a fuzzy rule table is established based on fuzzy reasoning in an 'IF-THEN' form;
and resolving the blur by adopting a weighted average method, wherein the output value of the entrance and exit illuminance E is as follows:
in the formula ujFor fuzzy reasoning of the jth output quantity, mucj(uj) Is an output ujA membership value of.
9. The ad hoc network type partition cooperative control underground garage illumination control method of claim 8, wherein the garage entrance, the traffic lane and the intersection parking space illumination values are respectively:
illuminance value at the garage entrance and exit: lth1 ═ K × E; lth2 ═ 0.5K × E;
lane illumination value: lin ═ min (0.3K × E, 30);
intersection illumination value: lrch ═ max (0.3K × E, 35);
parking space illuminance value: lp is 5 lx.
10. The ad hoc network type partition cooperative control underground garage illumination control method of claim 5, further comprising: collecting the voltage, the current and the output illumination of the LED lamp in real time in a set period;
when the voltage exceeds the allowable value U1 of the LED lamp, actively alarming to prompt overvoltage; when the current exceeds the upper limit value, U2 is automatically shut down to protect the lamp, U1 is less than U2;
when the current exceeds an allowable value I1 of the LED lamp, actively alarming to prompt overcurrent; when the current exceeds the upper limit value I2, the lamp is automatically shut down to protect the lamp, I1 is less than I2;
and when the LED lamp is adjusted to the maximum output brightness Emax and the output illumination is lower than the rated illumination by a set threshold value, actively alarming.
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