CN116456536A - Stable work guaranteeing system and method under fault state of tunnel lighting equipment - Google Patents
Stable work guaranteeing system and method under fault state of tunnel lighting equipment Download PDFInfo
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- CN116456536A CN116456536A CN202310458502.8A CN202310458502A CN116456536A CN 116456536 A CN116456536 A CN 116456536A CN 202310458502 A CN202310458502 A CN 202310458502A CN 116456536 A CN116456536 A CN 116456536A
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/18—Controlling the intensity of the light using temperature feedback
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
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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
Abstract
The invention discloses a system and a method for guaranteeing stable operation of tunnel lighting equipment in a fault state, wherein the system comprises an outside-tunnel brightness sensor and an inside-tunnel illuminance sensor which are respectively used for detecting the brightness outside a tunnel and inside the tunnel; the vehicle flow sensor is used for detecting the vehicle flow and the vehicle speed; the temperature sensor is used for detecting the temperature of the LED lamp and the environment; the central industrial personal computer is used for calculating brightness set values of the LED lamps of each lighting section; the field controller is used for dimming the LED lamps of each lighting section according to the brightness set value; the internet of things device is used for transmitting the sensor data and the calculation data to the cloud platform; the field debugging device is used for manually adjusting the running state of the field device. The method comprises the fault diagnosis and maintenance process of each structure. The invention can ensure the stable work of the lighting system and avoid unnecessary safety accidents caused by system breakdown during the period from the occurrence of system equipment failure to the completion of maintenance.
Description
Technical Field
The invention belongs to the field of tunnel lighting equipment overhaul, and particularly relates to a system and a method for guaranteeing stable operation of tunnel lighting equipment in a fault state.
Background
In the aspect of monitoring a lighting system, intelligent lighting systems are actively developed in many high-speed railway tunnels, but besides daily monitoring functions, functions of fault diagnosis and prediction for operation data of the lighting system are relatively lacking; the existing lighting system cannot work normally when faults occur, can only run by means of on-site inspection personnel and after maintenance is completed, and can bring great potential safety hazards to vehicles and pedestrians when the lighting system cannot provide lighting service in the time between the occurrence of the faults and the completion of the maintenance.
Disclosure of Invention
The invention aims to provide a system and a method for guaranteeing stable operation of tunnel lighting equipment in a fault state, so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention provides a stable operation guarantee system under a fault state of tunnel lighting equipment, which comprises an off-hole brightness sensor, an on-hole illuminance sensor, a traffic flow sensor, a temperature sensor, an LED lamp, a driving power supply, a central industrial personal computer, a field controller, an Internet of things device and a field debugging device;
the outside-hole brightness sensor and the inside-hole illuminance sensor are respectively used for detecting the outside-hole brightness and the inside-hole brightness;
the vehicle flow sensor is used for detecting the vehicle flow and the vehicle speed;
the temperature sensor is used for detecting the temperature of the LED lamp and the temperature of the environment;
the central industrial personal computer is used for calculating brightness set values of the LED lamps of each lighting section and automatically adjusting the brightness of the LED lamps according to the brightness in the hole;
the field controller is used for dimming the LED lamps of each lighting section according to the brightness set value;
the internet of things device is used for transmitting the sensor data and the calculation data to the cloud platform;
the field debugging device is used for manually adjusting the running state of the field device.
Optionally, the central industrial personal computer calculates the brightness value of each LED lamp of the illumination section according to the traffic flow, the vehicle speed and the outside brightness measured by the sensor, and the field controller respectively transmits each dimming parameter data to the corresponding LED lamp power supply through the analog quantity output module according to the brightness value, and the power supply controls the LED lamps to dim.
Optionally, the temperature sensor is arranged at the center of the substrate of the LED lamp, and the driving power supply comprises a voltage and current signal feedback device;
the temperature sensor and the voltage and current signal feedback device are used for detecting whether the LED lamp and the driving power supply normally operate.
Optionally, the brightness adjustment mode of the central industrial personal computer to the LED lamp further comprises manual adjustment and time sequence adjustment;
the manual adjustment comprises a sunny day, a cloudy day/small rain/small fog, a medium rain/medium fog, a heavy rain/large fog and a night mode, and brightness standards of corresponding LED lamps are arranged in each mode;
the time sequence adjustment comprises four season modes of spring, summer, autumn and winter, wherein the brightness value of the LED lamp which is required to be configured in each time period in the day in the corresponding season is arranged in each season mode.
In order to achieve the above object, the present invention provides a method for guaranteeing stable operation in a fault state of a tunnel lighting device, including:
based on feedback time of a data receiving module of the field controller, fault judgment is carried out on the outside brightness sensor, the inside illuminance sensor and the traffic flow sensor, and maintenance is carried out when faults occur;
performing fault judgment on the temperature sensor based on the received signal state of the field controller, and maintaining when a fault occurs;
performing fault judgment on the driving power supply based on whether the current and the voltage of the driving power supply are normally output, performing fault judgment on the LED lamp based on the temperature change of the LED lamp under the normal working of the driving power supply, and maintaining when the fault occurs;
judging whether the field controller fails or not based on whether the central industrial personal computer and the Internet of things equipment normally receive signals, and maintaining when the field controller fails;
judging the faults of the central industrial personal computer based on whether the interface of the central industrial personal computer displays data or not, and maintaining when the faults occur;
and judging the fault of the Internet of things equipment based on whether the cloud platform interface displays data or not, and maintaining when the fault occurs.
Optionally, in the fault maintenance process of the outside-tunnel brightness sensor and the traffic flow sensor, acquiring historical data under normal working conditions through the internet of things equipment based on a weighted prediction algorithm, and predicting data during maintenance based on the historical data;
in the fault maintenance process of the outside-tunnel brightness sensor, if the Internet of things equipment and the outside-tunnel brightness sensor are simultaneously in fault, the control mode of the central industrial personal computer is adjusted to be time sequence control by automatic control.
Optionally, in the fault maintenance process of the LED lamp, the central industrial personal computer controls the field controller to slowly increase the brightness of the LED lamp at the left, right and opposite positions of the fault LED lamp;
when the driving power supply is normal, if the temperature of the LED lamp slowly rises to the overtemperature, the voltage of the corresponding driving power supply is reduced, and after the temperature of the LED lamp is stable, the brightness of the LED lamp at the left, right and opposite positions of the LED lamp is slowly improved.
Optionally, in the fault maintenance process of the field controller, starting a voltage generator connected in parallel with the field controller to replace the field controller, and adjusting the brightness of the LED lamps of each road section by adjusting the output voltage of the voltage generator.
Optionally, in the fault maintenance process of the central industrial personal computer, a system worker operates the brightness of the LED lamp through a field touch screen or a mobile phone or a computer end cloud platform;
in the fault maintenance process of the Internet of things equipment, system staff operates the brightness of the LED lamp through a field touch screen or a mobile phone and through a monitoring panel staff by using a central industrial personal computer.
The invention has the technical effects that:
according to the invention, the running states of all the devices are detected according to the temperature of the sensor, the temperature of the LED lamp and the voltage and the current of the power supply of the LED lamp in the real-time detection lighting system, the lighting state of the tunnel LED is fed back in real time, and the alarm is given in time to prompt maintenance; the system and the execution algorithm are perfected, and the stable work of the lighting system is ensured during the period from the occurrence of system equipment failure to the completion of maintenance, so that unnecessary safety accidents caused by system breakdown are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application. In the drawings:
FIG. 1 is a diagram of a system for guaranteeing stable operation in a fault state of tunnel lighting equipment in an embodiment of the present invention;
FIG. 2 is a system workflow of an embodiment of the present invention in a normal operating state of an off-hole brightness sensor;
FIG. 3 is a system workflow in the failure state of an extra-hole luminance sensor in an embodiment of the invention;
FIG. 4 is a system workflow of a traffic flow sensor in a normal operating state according to an embodiment of the present invention;
FIG. 5 is a system workflow in a traffic flow sensor failure condition in an embodiment of the present invention;
FIG. 6 is a schematic diagram of the positional relationship between an LED lamp and a driving power supply in an embodiment of the invention;
FIG. 7 is a schematic diagram of a process of a field controller according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowcharts, in some cases the steps illustrated or described may be performed in an order other than that illustrated herein.
As shown in fig. 1 to 7, a system and a method for guaranteeing stable operation in a fault state of a tunnel lighting device are provided in this embodiment.
The stable work guaranteeing system under the fault state of the tunnel lighting equipment comprises an outside-tunnel brightness sensor, an inside-tunnel illuminance sensor, a traffic flow sensor, a temperature sensor, an LED lamp, a driving power supply, a field controller, a central industrial personal computer, an Internet of things device and a field debugging device;
the system has an automatic adjusting function:
an outside brightness sensor (for detecting outside brightness value), a traffic flow sensor (for detecting traffic flow and speed) and an inside brightness sensor (for detecting inside brightness) arranged in the tunnel are respectively connected with a tunnel site controller (PLC) through optical fibers, so that outside brightness, traffic flow, speed and inside brightness parameters can be acquired, and data are transmitted to a central industrial personal computer through the optical fibers;
the central industrial personal computer can calculate the brightness value of each LED lamp of each lighting segment according to the measured traffic flow, the measured speed, the measured tunnel outside brightness L20 (S) and the measured tunnel outside brightness related parameters, and sends the brightness value to the site controller;
the on-site controller transmits the data of each dimming parameter of 0-10V to the corresponding LED lamp power supply through the analog quantity output module, and the power supply controls the lamp to realize dimming;
after dimming is finished, the brightness data in the hole is sent to a central industrial personal computer through a field controller, the brightness of each LED lamp is finely adjusted according to corresponding numerical values and fed back to the field controller until the LED lamps stably work, and therefore smooth transition adjustment work of the lighting system under the unattended automatic condition is achieved;
all data in the field controller and the central industrial personal computer are transmitted to the Internet of things module, and the Internet of things module transmits the data to the cloud platform, so that remote monitoring and control can be realized through a computer end and a mobile phone end;
the field debugging equipment can manually adjust the running state of the field equipment in the construction debugging stage and the field emergency treatment, so as to ensure the system running under debugging and emergency conditions.
The temperature sensor is arranged at the center of the LED lamp substrate, the driving power supply is provided with a voltage and current signal feedback device for detecting whether the LED lamp and the driving power supply are in normal operation, if the voltage and current feedback is normal, the driving power supply is normal, and when the driving power supply is in normal operation, the temperature sensor corresponding to the LED lamp gradually rises to a stable level along with the working time; if the feedback temperature is the ambient temperature, the LED lamp fails;
besides automatic adjustment, the system is provided with manual adjustment and time sequence adjustment functions in the central industrial personal computer;
manual adjustment: the LED lamp is divided into five modes of sunny days, overcast days/small rain/small fog, medium rain/medium fog, heavy rain/large fog and night, and the brightness requirements of the corresponding LED lamps are set in the modes;
timing adjustment: the method is characterized in that a year is divided into four seasons of spring, summer, autumn and winter, the brightness value of the LED lamp which is required to be configured in each time period in the day in the corresponding season is set in each season, and the mode is selected to realize the automatic brightness adjusting function of different seasons according to the set brightness value.
The invention mainly aims at the guarantee method for the stable operation of the main equipment in the system when the main equipment fails:
failure of the extracave luminance sensor:
the outdoor brightness sensor transmits data to a site controller (PLC) through a 485 signal (modbus-RTU protocol), the controller receives feedback of a data module and overturns to enable the outdoor brightness sensor to work abnormally, fault alarm information of the outdoor brightness sensor is sent to a central industrial personal computer to prompt monitoring staff to overhaul as soon as possible, fault information is sent to Internet of things equipment, and alarm information is sent to prompt overhaul as soon as possible through a set corresponding staff mailbox and a short message;
before maintenance is completed, the outside-tunnel brightness sensor cannot read out data, and a weighted prediction algorithm is adopted to predict brightness data in a maintenance period according to weather conditions given by the Internet of things equipment and brightness historical data under the weather conditions during normal operation;
L 20 (S 0 )|w p t＝α 1 ×L 20 (S 1 )|w p t+α 2 ×L 20 (S 2 )|w p t+…+α n ×L 20 (S n )|w p t
α 1 +α 2 +…+α n ＝1
wherein: l (L) 20 (S 0 )|w p t is the weather w at present p Predictive value of the brightness of the tunnel at the next time t, L 20 (S 1 )|w p t is the previous weather w p Actual brightness value at time t, alpha n ×L 20 (S n )|w p For the first n days w p The actual brightness value at the next time t;
α 1 +α 2 +…+α n ＝1；note that: when n is less than 10, according to actual numerical calculation, when n is more than or equal to 10, n=10 is taken. The data is collected by the controller in real time and uploaded to the main control computer for storage.
The outdoor brightness sensor and the Internet of things equipment simultaneously fail, the central industrial personal computer cannot receive outdoor brightness data and weather conditions, the predicted data have great deviation under the conditions, and in order to prevent the conditions of insufficient brightness in sunny days and too strong brightness in rainy days, the central industrial personal computer can adjust a control mode from automatic control to time sequence control, so that normal work is ensured;
in-hole illuminance sensor failure:
the in-hole illuminance sensor transmits data to a site controller (PLC) through a 485 signal (modbus-RTU protocol), the site controller receives feedback of a data module and overturns to enable the in-hole illuminance equipment to work abnormally, sends a fault alarm message of a luminance meter to a central industrial control computer to prompt monitoring staff to overhaul as soon as possible, sends fault information to the Internet of things equipment, and sends alarm information to prompt overhaul as soon as possible through a set corresponding staff mailbox and a short message;
in the overhaul process, the luminance in the hole cannot work and only affects the brightness fine adjustment, and the whole system cannot be impacted greatly, so that other works are not performed.
Traffic flow sensor failure:
the traffic flow sensor transmits data to a field controller (PLC) through an analog quantity signal, the controller receives feedback overtime of a data module to enable the traffic flow sensor to work abnormally, sends traffic flow sensor fault alarm information to a central industrial personal computer to prompt monitoring disc personnel to overhaul as soon as possible, sends fault information to Internet of things equipment, and sends alarm information to prompt overhaul as soon as possible through a set corresponding personnel mailbox and a short message;
before maintenance is completed, the traffic flow sensor cannot read out data, a weighted prediction algorithm is adopted, traffic flow data during maintenance are predicted according to traffic flow historical data of each time period every day in normal operation, and statistics is carried out;
Vec(F 0 )|W d t＝β 1 ×Vec(F 1 )|W d t+β 2 ×Vec(F 2 )|W d t+…+β n ×Vec(F n )|W d t
β 1 +β 2 +…+β n ＝1
d＝1～7
wherein:
Vec(F 0 )|W d w in t d Vec (F 1 )|W d t is the actual vehicle flow value at the time t of the day d of the previous week, vec (F n )|W d t is the actual value of the traffic flow at the time t of the d day of the previous n weeks;
β 1 +β 2 +…+β n ＝1；note that: when n is less than 10, according to actual numerical calculation, when n is more than or equal to 10, n=10 is taken. The data is collected by the controller in real time and uploaded to the main control computer for storage.
Temperature sensor failure:
the temperature sensor adopts an NTC module, temperature data of each lamp is transmitted to a field controller (PLC), the controller receives abnormal signals (the temperature is too low or too high) or dead spots, fault alarm information of the temperature sensor is sent to a central industrial personal computer to prompt monitoring disc personnel to overhaul as soon as possible, fault information is sent to Internet of things equipment, and alarm information is sent to prompt overhaul as soon as possible through a set corresponding personnel mailbox and a short message;
in the overhaul process, the LED lamp temperature sensor cannot work and only affects feedback data, and the whole system cannot be impacted, so that other works are not performed.
LED lamp, drive power supply trouble:
a temperature sensor is arranged at the center of the LED lamp core substrate, and a temperature signal is read into a central industrial personal computer through an analog quantity input module of a field controller (PLC); the power supply is provided with a voltage and current feedback device, and voltage and current signals are read into the central industrial personal computer through an analog quantity input module of the PLC;
judging whether the power supply fails, namely whether the power supply normally outputs voltage and current signals, if the system works normally but the power supply B n No voltage or current output signal, power supply B n Failure, corresponding to lamp d n Not bright;
if the system works normally, the power supply B n Output normal operating voltage and current, but lamp d n The temperature is slowly reduced to normal temperature at a certain moment, and then the power supply B n Normal, corresponding LED lamp d n Failure is not bright;
in the two working states, the power supply B is respectively sent to the central industrial personal computer n LED lamp d n The fault alarm information is sent to the Internet of things equipment at the same time, and the alarm information is sent through the set corresponding personnel mailbox and short message to prompt the maintenance as soon as possible;
before the maintenance is completed, due to the lamp d n The central industrial personal computer can not work, the surrounding brightness is reduced, and the central industrial personal computer issues a strategy to the PLC through a defined program, so that the lamp d is slowly lifted n The maximum brightness voltage of the corresponding PLC output adjustment of the left, right and opposite lamps is not more than 9V, so as to increase the brightness voltage to a value of … which is 1.5 times the original value; the illuminance in the hole is not lower than a normal value which is 0.5 times of the illuminance in the hole and is not higher than the normal value;
if the system works normally, the power supply B n Output normal operating voltage and current, but lamp d n The temperature slowly rises to over-temperature at a certain time, the power supply B n Normal, corresponding LED lamp d n The light efficiency and the service life are affected by the overhigh temperature, the brightness adjusting voltage is reduced to 90%, 80%, 70%, 60% and 50% in sequence, and whether the brightness adjusting voltage is within an allowable range or not is observed after the temperature is stable; after the temperature is stable and meets the requirements, slowly increasing the lamp d n The PLC corresponding to the left, right and opposite lamps outputs brightness regulating voltage until the brightness of the surrounding is normal;
site controller failure:
the field controller fails, and cannot send brightness signal values to the power supply, so that all LED lamps in the tunnel cannot work normally easily. The central industrial personal computer and the Internet of things equipment can not receive all signal values and can not complete control operation, the central industrial personal computer sends out a field controller fault to a field monitoring staff, and the Internet of things equipment sends out a field controller 7 fault alarm message through a set corresponding staff mailbox and a short message to prompt the maintenance as soon as possible;
in the period that the field controller fails and cannot work, a 24V direct current power supply converts a 220V power supply into a 24V direct current power supply, and the 24V direct current power supply is connected with a 0-10V voltage generator after passing through a relay, and the output of the voltage generator is connected with the signal output of the field controller in parallel;
the 0-10V knob of the voltage generator is adjustable, and the initial position is adjusted to the middle 5V;
the relay is normally closed, and in a normal working state of the field controller, the relay is in a suction opening state, the voltage generator does not work without voltage input, and the 0-10V dimming signal is provided by the field controller; when the field controller fails, the PLC does not output signals, the relay is in a closed state, the voltage generator starts to work, the 5V voltage signal in the original state is output, the LED lamp works normally at half brightness, and if an emergency exists in the overhaul process, the brightness can be adjusted in real time through the knob;
and (3) failure of the central industrial personal computer:
the central industrial personal computer fails, all interfaces in the centralized control room have no display data, the central industrial personal computer sends out the failure of the central industrial personal computer to the on-site monitoring staff, and the Internet of things equipment sends out the failure alarm information of the central industrial personal computer through the set corresponding staff mailbox and short message to prompt the maintenance as soon as possible;
during the period that the central industrial computer fails and cannot work, constructors in the system can operate the actual brightness by adopting a field touch screen or a mobile phone and a computer end cloud platform, and the field operation state is not influenced as a whole.
Internet of things equipment failure:
the method comprises the steps that the equipment of the Internet of things fails, all interfaces on the cloud platform have no display data, and a central industrial personal computer sends out the equipment failure of the Internet of things to site monitoring staff, and the site monitoring staff prompts corresponding staff to overhaul as soon as possible;
during the period that the equipment of the Internet of things fails and cannot work, constructors in the system can use a field touch screen or a mobile phone to operate the actual brightness through a monitoring disc worker by using a central industrial personal computer, and the field operation state is not influenced as a whole.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the technical scope of the present application should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. The system is characterized by comprising an off-hole brightness sensor, an on-hole illuminance sensor, a traffic flow sensor, a temperature sensor, an LED lamp, a driving power supply, a central industrial personal computer, a field controller, an Internet of things device and a field debugging device;
the outside-hole brightness sensor and the inside-hole illuminance sensor are respectively used for detecting the outside-hole brightness and the inside-hole brightness;
the vehicle flow sensor is used for detecting the vehicle flow and the vehicle speed;
the temperature sensor is used for detecting the temperature of the LED lamp and the temperature of the environment;
the central industrial personal computer is used for calculating brightness set values of the LED lamps of each lighting section and automatically adjusting the brightness of the LED lamps according to the brightness in the hole;
the field controller is used for dimming the LED lamps of each lighting section according to the brightness set value;
the internet of things device is used for transmitting the sensor data and the calculation data to the cloud platform;
the field debugging device is used for manually adjusting the running state of the field device.
2. The system for guaranteeing stable operation under a fault state of tunnel lighting equipment according to claim 1, wherein the central industrial personal computer calculates brightness values of the LED lamps of each lighting segment according to traffic flow, vehicle speed and off-hole brightness measured by the sensor, and the site controller respectively transmits dimming parameter data to corresponding LED lamp power supplies through analog quantity output modules according to the brightness values, and the power supplies control the LED lamps to perform dimming.
3. The system according to claim 1, wherein the temperature sensor is disposed at a central position of the substrate of the LED lamp, and the driving power supply includes a voltage and current signal feedback device;
the temperature sensor and the voltage and current signal feedback device are used for detecting whether the LED lamp and the driving power supply normally operate.
4. The system according to claim 1, wherein the brightness adjustment mode of the LED lamp by the central industrial personal computer further comprises manual adjustment and time sequence adjustment;
the manual adjustment comprises a sunny day, a cloudy day/small rain/small fog, a medium rain/medium fog, a heavy rain/large fog and a night mode, and brightness standards of corresponding LED lamps are arranged in each mode;
the time sequence adjustment comprises four season modes of spring, summer, autumn and winter, wherein the brightness value of the LED lamp which is required to be configured in each time period in the day in the corresponding season is arranged in each season mode.
5. A tunnel lighting equipment failure state stable operation guarantee method based on the tunnel lighting equipment failure state stable operation guarantee system according to any one of claims 1 to 4, characterized by comprising:
based on feedback time of a data receiving module of the field controller, fault judgment is carried out on the outside brightness sensor, the inside illuminance sensor and the traffic flow sensor, and maintenance is carried out when faults occur;
performing fault judgment on the temperature sensor based on the received signal state of the field controller, and maintaining when a fault occurs;
performing fault judgment on the driving power supply based on whether the current and the voltage of the driving power supply are normally output, performing fault judgment on the LED lamp based on the temperature change of the LED lamp under the normal working of the driving power supply, and maintaining when the fault occurs;
judging whether the field controller fails or not based on whether the central industrial personal computer and the Internet of things equipment normally receive signals, and maintaining when the field controller fails;
judging the faults of the central industrial personal computer based on whether the interface of the central industrial personal computer displays data or not, and maintaining when the faults occur;
and judging the fault of the Internet of things equipment based on whether the cloud platform interface displays data or not, and maintaining when the fault occurs.
6. The method for guaranteeing stable operation under a fault state of tunnel lighting equipment according to claim 5, wherein in the fault maintenance process of the outside-tunnel brightness sensor and the traffic flow sensor, historical data under normal working conditions is obtained through internet of things equipment based on a weighted prediction algorithm, and data during maintenance is predicted based on the historical data;
in the fault maintenance process of the outside-tunnel brightness sensor, if the Internet of things equipment and the outside-tunnel brightness sensor are simultaneously in fault, the control mode of the central industrial personal computer is adjusted to be time sequence control by automatic control.
7. The method for guaranteeing stable operation under a fault state of tunnel lighting equipment according to claim 5, wherein in the fault maintenance process of the LED lamp, the central industrial personal computer controls the field controller to slowly increase the brightness of the LED lamp at the left, right and opposite positions of the fault LED lamp;
when the driving power supply is normal, if the temperature of the LED lamp slowly rises to the overtemperature, the voltage of the corresponding driving power supply is reduced, and after the temperature of the LED lamp is stable, the brightness of the LED lamp at the left, right and opposite positions of the LED lamp is slowly improved.
8. The method for guaranteeing stable operation under a fault condition of tunnel lighting equipment according to claim 5, wherein a voltage generator connected in parallel with the field controller is started to replace the field controller in the fault maintenance process of the field controller, and brightness adjustment is performed on the LED lamps of each road section by adjusting output voltage of the voltage generator.
9. The method for guaranteeing stable operation under a fault state of tunnel lighting equipment according to claim 5, wherein in the fault maintenance process of the central industrial personal computer, system staff operates the brightness of the LED lamp through a field touch screen or a mobile phone and a computer end cloud platform;
in the fault maintenance process of the Internet of things equipment, system staff operates the brightness of the LED lamp through a field touch screen or a mobile phone and through a monitoring panel staff by using a central industrial personal computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310458502.8A CN116456536A (en) | 2023-04-26 | 2023-04-26 | Stable work guaranteeing system and method under fault state of tunnel lighting equipment |
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