CN110658764A - Intelligent safety electric instrument linkage management and control system for gas station and application method - Google Patents

Intelligent safety electric instrument linkage management and control system for gas station and application method Download PDF

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CN110658764A
CN110658764A CN201910965530.2A CN201910965530A CN110658764A CN 110658764 A CN110658764 A CN 110658764A CN 201910965530 A CN201910965530 A CN 201910965530A CN 110658764 A CN110658764 A CN 110658764A
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information
unit
monitoring unit
electric power
electric
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王干
冉兆东
韩勇
冉琪
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Hefei Sing In Control Technology Co Ltd
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Hefei Sing In Control Technology Co Ltd
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    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428Safety, monitoring
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00Program-control systems
    • G05B2219/20Pc systems
    • G05B2219/24Pc safety
    • G05B2219/24215Scada supervisory control and data acquisition

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

A linkage management and control system of a filling station intelligent safety electric instrument and an application method thereof comprise the following steps: the system comprises an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit, a lightning surge monitoring unit, a communication unit, an electric instrument linkage main control unit and a control platform; control platform, including the remote control host computer that is used for monitoring and control electric power system operation, the monitor, the control host computer passes through radio signal and links to each other with the communication unit, and acquire the control information of electricity appearance linkage main control unit through the communication unit, electricity appearance linkage main control unit passes through RS485 interface and electric power monitoring unit, oil gas monitoring unit, thunder and lightning surge monitoring unit, atmospheric environment monitoring unit homogeneous phase is connected, electricity appearance linkage main control unit uploads each above-mentioned unit information to remote control host server and saves in main memory through the communication unit, the control host computer shows above each information through the monitor, and show and report an emergency and ask for help or increased vigilance various condition.

Description

Intelligent safety electric instrument linkage management and control system for gas station and application method
Technical Field
The invention relates to the field of safety application of the Internet of things, in particular to an intelligent safety electric instrument linkage control system and an application method for a gas station.
Background
The gas station is operated continuously all weather, and the flammable and explosive material of storage is in large quantity, and the people and the car are mixed, and the potential risk of accident is high, and the consequence harm is serious, therefore, the normal operation of public safety and oil industry production and operation activity is directly influenced in the safe production work of gas station, and the meaning is significant. At present, a plurality of gas stations in China are all distributed construction, the gas stations are respectively arranged in regions such as urban areas, highways and the like according to the requirements of distance to roads so as to facilitate people to refuel when going out, each gas station is a subsystem for mixing oil and electricity, the oil storage region, the oil filling region and the office region are not separated from the power supply, such as oil pump power consumption, oiling machine power consumption, office power consumption, illumination safety warning power consumption and the like, and fire explosion accidents caused by oil tank leakage, automobile oil tank oil leakage, oiling machine leakage, circuit aging, electric appliance spark, static electricity, lightning stroke and open fire in the various accidents of the gas stations account for a large proportion. In recent years, the information construction of national gas stations has made a certain progress, some gas stations construct security protection oil gas monitoring systems, lightning protection systems and video monitoring systems, but the systems can only meet the anti-theft and anti-robbery requirements of the gas stations, the over-standard oil gas environment alarm and lightning protection of the gas stations, the monitoring conditions above the gas stations are more likely to cause the ignition of an electric or electric power loop, the gas stations do not monitor the electricity safety of the station area at present, the existing monitoring system and the electric power monitoring system are not linked together, and the safety monitoring and management of the gas stations are not realized from the accident source and the electric power loop aiming at the characteristics of the safety monitoring of the gas stations; relevant loop current is not cut off in time when a relevant monitoring system gives an alarm, loop load and loop cable temperature are not monitored and analyzed for a long-term running power loop, and the problems exist great potential safety hazards in safety production and running of the refueling station area to be solved urgently.
Disclosure of Invention
In order to overcome the defects of the existing gas station in electric power monitoring and the existing safety monitoring instrument system which has no independent early warning and is not linked with electric power monitoring, and avoid safety accidents in time, the invention discloses a gas station intelligent safety electric instrument linkage management and control system, which comprises: the system comprises an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit, a lightning surge monitoring unit, a communication unit, an electric instrument linkage main control unit and a control platform; the control platform comprises a remote control host and a monitor, wherein the remote control host is used for monitoring and controlling the operation of the power system, the control host is connected with the communication unit through a wireless signal and acquires control information of the electric instrument linkage main control unit through the communication unit, and the power monitoring unit is controlled by the electric instrument linkage main control unit; the electric instrument linkage main control unit is connected with the electric power monitoring unit through an RS485 interface, monitors the voltage, the current, the leakage current, the operation load and the cable temperature of each loop of each electric loop of the gas station, and uploads the information of each electric loop to the remote control host server through the communication unit and stores the information in the main memory; the electric instrument linkage main control unit is connected with the oil gas monitoring unit through an RS485 interface to acquire oil gas concentration information of a gas station space of the oil gas monitoring unit, and if the oil gas concentration data exceeds a set threshold value, the electric instrument linkage main control unit disconnects the linkage electric power monitoring unit from a power supply loop of a gas station area, and meanwhile, the information is uploaded to a remote control host server through a communication unit and stored in a main memory; the electric instrument linkage main control unit is connected with the lightning surge monitoring unit through an RS485 interface to acquire information of lightning intensity, surge current and voltage, and disconnects the linkage electric power monitoring unit from a power supply loop of the refueling station area if surge voltage and current data exceed a set threshold value, and simultaneously uploads the information to a remote control host server through a communication unit and stores the information in a main memory; the electric instrument linkage main control unit is connected with the atmospheric environment monitoring unit through a 485 interface to acquire atmospheric environment information of the refueling station area, and if extreme weather such as severe pollution, heavy fog, heavy rain, snow storm, icing and the like occurs in the environment, the electric instrument linkage main control unit disconnects the linkage electric power monitoring unit from a part of power supply loops of the refueling station area, and meanwhile, the information is uploaded to a remote control host server through a communication unit and stored in a main memory; the control host displays the information through a monitor, displays and alarms various conditions, and sends control signals to each unit data or alarm condition to carry out remote control.
The power monitoring unit, its characterized in that power monitoring unit includes: the system comprises an electric load loop, a current sensor, a voltage sensor, a temperature sensor, a microcontroller and a terminal data acquisition module; the electric power circuit comprises an oiling machine electric power circuit, an oiling pump electric power circuit, a lighting electric power circuit, a monitoring unit electric power circuit and an office electric power circuit, wherein each electric power circuit is provided with a loaded current sensor, a voltage sensor and a leakage current sensor, the sampling range of a current transformer of the loaded current sensor is 0-1000A, the current of each circuit load is provided with one current transformer, the working current and the lightning stroke surge current of the circuit are obtained, and a microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit; the sampling range of a voltage transformer of the voltage sensor is 0-20000V, the voltage of each loop load is provided with one voltage transformer, the voltage sensor acquires the working voltage and the lightning stroke induction voltage of the loop, and the microprocessor samples the current information and feeds the current information back to the electrical instrument linkage main control unit; the leakage current sensor is connected with the power supply line leakage protector of each loop load to acquire leakage current information and leakage protection information, and the microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit; a temperature acquisition thermocouple of the temperature sensor is fixed on a cable core at the end of the power loop to acquire the temperature of the cable core in real time, and the microprocessor samples the temperature information of the power loop and feeds back the voltage information, the current information, the leakage protection information and the cable temperature information to the electric instrument linkage main control unit through the terminal data acquisition unit.
Oil gas monitoring unit, its characterized in that oil gas monitoring unit includes: combustible gas detector, smoke alarm and terminal data acquisition module, combustible gas detector, smoke alarm all have RS485 interface and terminal data acquisition module communication, and terminal data acquisition module acquires combustible gas detector and smoke alarm's data information to feed back to electric appearance linkage main control unit.
Atmospheric environment monitoring unit, its characterized in that atmospheric environment monitoring unit includes: PM2.5 environment detection appearance, humiture detector, wind-force detector and terminal data acquisition module, PM2.5 environment detection appearance, humiture detector, wind-force detector all have RS485 interface and terminal data acquisition module communication, and terminal data acquisition module acquires PM2.5 concentration data, atmospheric temperature and humidity data and the wind-force intensity data of refueling station district in real time to feed back to the main control unit of electrical apparatus linkage.
The thunder and lightning surge monitoring unit, its characterized in that thunder and lightning surge monitoring unit includes: lightning protection device, lightning rod and terminal data acquisition module, lightning protection device, lightning rod all have RS485 interface and terminal data acquisition module communication, and terminal data acquisition module acquires the thunderbolt intensity in refueling station district, thunderbolt number of times data information in real time to feed back to the main control unit of electricity appearance linkage.
The main control unit is characterized in that the main control unit is composed of a main controller, a current sampling submodule, a voltage sampling submodule, a temperature sampling submodule, a lightning stroke sampling submodule, an oil gas component sampling submodule and an environment sampling submodule, the main controller also controls a power circuit breaker through a relay, the main controller samples real-time information of each functional module and sends the information to a remote control host server through a communication unit, the main controller compares the real-time information with a threshold value set by a body, if the real-time value exceeds the set threshold value, the main controller controls the relay to act, corresponding power circuit is disconnected, the safety of the circuit is ensured, and the information is sent to the remote control host server.
The communication unit comprises a GPS device used for providing GPS positioning information, the communication unit is at least one of an NB-IOT communication module, an LORA communication module and a 5G communication module, the communication unit is connected with the electric instrument linkage main controller, the communication unit sends and receives control instructions sent by the control platform and feeds the control instructions back to the electric instrument linkage main controller, and the electric instrument linkage main controller manages and controls the operation of the electric power load loop.
Preferably, when the communication unit is one of an NB-IOT communication module or a 5G communication module, the communication module is in circuit connection with an electric instrument linkage main controller, the electric instrument linkage main controller is respectively in signal communication with the electric power monitoring unit, the oil gas monitoring unit, the atmospheric environment monitoring unit and the lightning surge monitoring unit through RS485 interfaces, the electric instrument linkage main controller directly acquires the information of the functional units and stores the information in a local memory, and meanwhile, the electric instrument linkage main controller sends the information of the functional terminal information collectors to a remote monitoring platform through the NB-IOT communication module or the 5G communication module.
The communication system comprises a communication unit, a control module of an LORA gateway concentrator is connected with an electric instrument linkage main controller circuit, a terminal data collector of the LORA is respectively connected with an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit and a lightning surge monitoring unit through RS485 interface signals, the terminal data collector carries out data information feedback with the LORA gateway concentrator through a wireless radio frequency form, the gateway concentrator feeds acquired information of all terminal information collectors back to the electric instrument linkage main controller and stores the information in a local memory, and the electric instrument linkage main controller sends the acquired information of all the functional terminal information collectors to a remote monitoring platform through a wireless communication module of the LORA gateway concentrator.
A linkage control system and an application method of an intelligent safety electric instrument of a gas station comprise the following specific steps:
s1: starting each power loop, enabling each load to work normally, starting each monitoring unit system, enabling each functional unit and each sensor module to enter a working state, starting the remote monitoring platform and the communication unit, and enabling the whole system to enter the working state;
s2: the main controller of the electric instrument linkage main control unit records the starting time of each current functional unit, the communication unit receives the alarm threshold value of the electric power monitoring unit, the alarm threshold value of the oil gas monitoring unit and the alarm threshold value of the atmospheric environment monitoring unit which are set by the control host of the remote control platform, and the alarm threshold value of the lightning surge monitoring unit, and feeds the unit threshold values back to the electric instrument linkage main controller, and the main controller stores the information to a local memory;
s3: the electric instrument linkage main controller receives signal information of each functional unit at certain intervals, stores the information in a local memory, simultaneously sends the received information to a control host of the monitoring platform through a communication unit, stores the information in the main memory, simultaneously draws a real-time data curve of each functional unit, and displays the real-time data curve through a monitor;
s4: the electric instrument linkage main controller monitors and processes real-time data information of the electric power monitoring unit, the oil gas monitoring unit, the atmospheric environment monitoring unit and the lightning surge monitoring unit, when the real-time value of at least one functional unit exceeds a given threshold value, the electric instrument linkage main controller controls at least one electric power loop related to the alarm value, and a relay acts to disconnect a breaker of the electric power loop, so that the electricity utilization safety of the refueling station area is ensured;
s5, a control host of a monitoring platform receives real-time data information of an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit and a lightning surge monitoring unit sent by an electric instrument linkage main controller, processes alarm frequency, alarm parameter amplitude, alarm time and environment state of each functional unit, draws fault curves of each functional unit, establishes a fault point discrete mathematical model, draws a gas station electric power operation fault curve graph by adopting a linear fitting method, and pre-judges the operation state of an electric power loop and a fault curve which possibly occurs according to the curve graph;
and S6, the personnel at the gas station checks the operation fault curve of the electric power loop given by the control host of the management and control platform, and obtains the position of the gas station and the electric power loop node to perform advanced maintenance or treatment on the electric power loop of the gas station, so as to prevent the influence of the electric power loop fault on the safe operation of the gas station.
Significant effects of the invention
The invention adopts a distributed management and control system to realize remote operation and maintenance management and early warning analysis of a plurality of gas stations, and compared with the prior art, the invention has the following remarkable effects:
(1) and multi-circuit detection and all-dimensional control. The system adopts an original comprehensive intelligent sensing system, combines an advanced intelligent sensing and control module, senses the power utilization condition of each power circuit in a refueling station area in real time, acquires the current, voltage and other power utilization parameters of each power circuit and the temperature of each cable respectively, can independently set various open circuit thresholds, immediately alarms and opens circuits once the power utilization condition exceeds the threshold, avoids the risk caused by overload operation of the circuit due to aging or overload of the circuit, and uploads the acquired data to a safety power utilization monitoring platform through the wireless transmission technology of the internet of things.
(2) Large environment, microenvironment and double environment early warning. Monitoring and early warning aiming at the surrounding climate environment of a gas station and the microenvironment inside the gas station: the system detects the microenvironment of the refueling station area in real time through the tail end sensors such as oil gas component sensing and the like, controls the concentration of oil gas mixture in the air in the refueling station area, and immediately alarms and intelligently regulates and controls the work of a refueling gun so as to prevent safety problems once the concentration exceeds the standard. Combining real-time data of a local weather station and detection data of a lightning protection and surge system in the station, analyzing and predicting the probability of occurrence of the thunderstorm through big data of a cloud platform, and early warning and protecting the safety of the thunderstorm in the refueling station area; if meeting thunderstorm weather, the system monitors the number of times and intensity of surge of the weak current system while monitoring thunder and lightning, and if abnormal power-off protection exists, the safety of the electric power system and the power utilization facilities of the gas station is ensured.
The monitoring platform uninterruptedly stores, analyzes, excavates and utilizes big data, reduces monitoring energy consumption in the maximum range monitoring power consumption condition and on the basis of safety, saves energy and reduces cost for users, realizes description type-diagnosis type-prediction type-guidance type full-period power consumption safety supervision, and has strong practicability.
Drawings
FIG. 1 is a schematic diagram of a linkage control system for an intelligent safety electric instrument of a gas station according to the present invention;
FIG. 2 is a flow chart of an application method of the intelligent safety electric instrument linkage control system of the gas station;
in the figure: 1. the monitoring system comprises an electric power monitoring unit, 11, an electric power load loop, 12, a current sensor, 13, a voltage sensor, 14, a temperature sensor, 2, an oil gas monitoring unit, 21, a combustible gas detector, 22, a smoke alarm, 3, a lightning surge monitoring unit, 31, a lightning arrester, 32, a lightning rod, 4, an atmospheric environment monitoring unit, 41, a PM2.5 environment detector, 42, a temperature and humidity detector, 43, a wind power detector, 5, an electric instrument linkage main control unit, 51, an electric instrument linkage main control unit, 52, a local storage, 6, a communication unit, 61, a terminal information collector, 7, a control platform, 71, a control host, 72, a monitor, 73 and a main storage.
Detailed Description
An embodiment of the present invention will be described in detail with reference to fig. 1. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
The invention discloses a gas station intelligent safety electric instrument linkage management and control system, which comprises: the system comprises an electric power monitoring unit 1, an oil gas monitoring unit 2, an atmospheric environment monitoring unit 4, a lightning surge monitoring unit 3, a communication unit 6, an electric instrument linkage main control unit 5 and a control platform 7; the control platform 7 comprises a remote control host 71 and a monitor 72, wherein the remote control host 71 is used for monitoring and controlling the operation of the power system, the control host 71 is connected with the communication unit 6 through a wireless signal, control information of the electric instrument linkage main control unit 5 is acquired through the communication unit 6, and the power monitoring unit 1 is controlled by the electric instrument linkage main control unit 5; the electric instrument linkage main control unit 5 is connected with the electric power monitoring unit 1 through a 485 interface, monitors the voltage, the current, the leakage current, the operation load and the cable temperature of each loop of each electric loop of the gas station, and the electric instrument linkage main control unit 5 uploads the information of each electric loop to a remote control host 71 server through a communication unit 6 and stores the information in a main memory 73; the electric instrument linkage main control unit 5 is connected with the oil gas monitoring unit 2 through an RS485 interface to obtain the oil gas concentration information of a gas station space of the oil gas monitoring unit 2, if the oil gas concentration data exceeds a set threshold value, the electric instrument linkage main control unit 5 disconnects the linkage electric power monitoring unit 1 from a power supply loop of a refueling station area, and meanwhile, the information is uploaded to a remote control host 71 server through the communication unit 6 and stored in the main memory 73; the electric instrument linkage main control unit 5 is connected with the lightning surge monitoring unit 3 through an RS485 interface to acquire information of lightning intensity, surge current and voltage, if surge voltage and current data exceed a set threshold value, the electric instrument linkage main control unit 5 disconnects the linkage electric power monitoring unit 1 from a power supply loop of a refueling station area, and meanwhile, the information is uploaded to a remote control host 71 server through the communication unit 6 and stored in the main memory 73; the electronic instrument linkage main control unit 5 is connected with the atmospheric environment monitoring unit 4 through a 485 interface to acquire atmospheric environment information of the refueling station area, if extreme weather such as severe pollution, heavy fog, heavy rain, snow storm, icing and the like occurs in the environment, the electronic instrument linkage main control unit 5 disconnects the linkage power monitoring unit 1 from a part of power supply loops of the refueling station area, and meanwhile, the information is uploaded to a remote control host 71 server through a communication unit 6 unit and stored in a main memory 73; the control host 71 displays the above information through the monitor 72, and displays and alarms various conditions, and at the same time, the control host 71 issues control signals to each unit data or alarm condition for remote control.
The power monitoring unit, its characterized in that power monitoring unit 1 includes: the system comprises an electric load loop 11, a current sensor 12, a voltage sensor 13, a temperature sensor 14, a microcontroller and a terminal data acquisition module 61; the electric power loop comprises an oiling machine electric power loop, an oiling pump electric power loop, a lighting electric power loop, a monitoring unit electric power loop and an office electric power loop, each electric power loop is provided with a loaded current sensor 11, a voltage sensor 12 and a leakage current sensor 13, the sampling range of a current transformer of the loaded current sensor 11 is 0-1000A, the current of each loop load is provided with one current transformer, the working current and the lightning stroke surge current of the loop are obtained, and a microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit 5; the sampling range of a voltage transformer of the voltage sensor 12 is 0-20000V, the voltage of each loop load is provided with one voltage transformer, the voltage sensor 12 acquires the working voltage and the lightning stroke induction voltage of the loop, and the microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit 5; the leakage current sensor 13 is connected with a power supply line leakage protector of each loop load to acquire leakage current information and leakage protection information, and the microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit 5; the temperature acquisition thermocouple of the temperature sensor 14 is fixed on a cable core at the end of the power loop to acquire the temperature of the cable core in real time, and the microprocessor samples the temperature information of the power loop and feeds back the voltage information, the current information, the leakage protection information and the cable temperature information to the electric instrument linkage main control unit 5 through the terminal data acquisition unit 61.
Oil gas monitoring unit, its characterized in that oil gas monitoring unit 2 includes: combustible gas detector 21, smoke alarm 22 and terminal data acquisition module 61, combustible gas detector 21, smoke alarm 22 all have RS485 interface and terminal data acquisition module communication 61, and terminal data acquisition module 61 acquires combustible gas detector and smoke alarm's data information to feed back to electric appearance linkage main control unit 5.
Atmospheric environment monitoring unit, its characterized in that atmospheric environment monitoring unit 4 includes: the system comprises a PM2.5 environment detector 41, a temperature and humidity detector 42, a wind power detector 43 and a terminal data acquisition module 61, wherein the PM2.5 environment detector 41, the temperature and humidity detector 42 and the wind power detector 43 are all communicated with the terminal data acquisition module 61 through RS485 interfaces, and the terminal data acquisition module 61 acquires PM2.5 concentration data, atmospheric temperature and humidity data and wind power intensity data of an oil filling station area in real time and feeds the data back to the electric instrument linkage main control unit 5.
The thunder and lightning surge monitoring unit, its characterized in that thunder and lightning surge monitoring unit 3 includes: lightning protection device 31, lightning rod 32 and terminal data acquisition module 61, lightning protection device 31, lightning rod 32 all have RS485 interface and terminal data acquisition module 61 communication, and terminal data acquisition module 61 acquires the thunderbolt intensity in refueling station district, thunderbolt number of times data information in real time to feed back to electricity appearance linkage main control unit 5.
The electrical instrument linkage main control unit is characterized in that the electrical instrument linkage main control unit 5 consists of a main controller 51, wherein a main control chip module adopts an STM32F103RET6 type, and the chip module is based on an ARM high-density performance line 32-bit MCU, has 265-bit and 512-bit flash memories, USB, CAN,11 timers, 3 ADCs and 13 communication interfaces, and CAN meet the technical requirements of the main control unit; the electric current sampling submodule, the voltage sampling submodule, the temperature sampling submodule, the thunderbolt sampling submodule, oil gas composition sampling submodule and environment sampling submodule constitute, main control unit 51 is still through relay control electric power circuit breaker, main control unit 51 samples above-mentioned each function module real-time information and sends this information to remote control host 71 server through communication unit 6, simultaneously main control unit 51 compares this real-time information with the threshold value that the body set for, if the real-time value exceeds the threshold value of settlement, main control unit 51 controls the action of relay, break off corresponding electric power circuit, ensure this return circuit safety, send this information to remote control host 71 server simultaneously.
The communication unit comprises a GPS device used for providing GPS positioning information, the communication unit 6 is at least one of an NB-IOT communication module, an LORA communication module and a 5G communication module, the communication unit 6 is connected with an electric instrument linkage main controller 51, the communication unit 5 sends and receives control instructions sent by the control platform 7 and feeds the control instructions back to the electric instrument linkage main controller 51, and the electric instrument linkage main controller 51 manages and controls the operation of an electric load loop.
Preferably, when the communication unit 6 is one of NB-IOT communication module or 5G communication module, the communication module is in circuit connection with the electrical instrument linkage main controller 51, the electrical instrument linkage main controller 51 is in signal communication with the power monitoring unit, the oil and gas monitoring unit, the atmospheric environment monitoring unit and the lightning surge monitoring unit through RS485 interfaces, the electrical instrument linkage main controller 51 directly obtains the information of the above functional units and stores the information in the local memory 52, and meanwhile, the electrical instrument linkage main controller 51 sends the information of the above functional terminal information collectors to the remote monitoring platform 7 through the NB-IOT communication module or 5G communication module.
Preferably, the communication unit 6 is composed of an LORA communication module, a control module of the LORA gateway concentrator is in circuit connection with the electric instrument linkage main controller 51, wherein an LORA main chip adopts an M-GW1LORA data terminal chip module produced by Nanjing Ruijie electronic technology, Inc., the chip module has eight independent receiving channels and can simultaneously communicate with 8 SX1278/SX 1276; the receiving sensitivity of each receiving channel is up to-142 dBm; each receiving channel can fully solve SF 7-SF 12 without concerning spreading factors; independent transmitting channels, 20dBm of maximum power, full duplex transmitting and receiving without mutual influence. LORA's terminal data collection station 61 respectively with electric power monitoring unit 1, oil gas monitoring unit 2, atmospheric environment monitoring unit 4, lightning surge monitoring unit 3 unit is connected through RS485 interface or one of them mode of circuit, and carry out data information feedback through wireless radio frequency form and LORA gateway concentrator, the gateway concentrator feeds back the information feedback of each terminal information collection station who acquires to electric appearance linkage main control unit 51 and saves in local memory 52, electric appearance linkage main control unit 51 sends the information of each function terminal information collection station who acquires to remote monitoring platform 7 through the wireless communication module of LORA gateway concentrator.
A linkage control system and an application method of an intelligent safety electric instrument of a gas station comprise the following specific steps:
s1: starting each power loop, enabling each load to work normally, starting each monitoring unit system, enabling each functional unit and each sensor module to enter a working state, starting the remote monitoring platform 7 and the communication unit, and enabling the whole system to enter the working state;
s2: the main controller 51 of the electrical instrument linkage main control unit 5 records the starting time of each current functional unit, the communication unit 6 receives the alarm threshold value of the electrical monitoring unit 1, the alarm threshold value of the oil gas monitoring unit 2, the alarm threshold value of the atmospheric environment monitoring unit 4 and the alarm threshold value of the thunder and lightning surge monitoring unit 3 which are set by the control host 71 of the remote control platform 7, and feeds the threshold values of each unit back to the electrical instrument linkage main controller 51, and the main controller 51 stores the information into the local memory 52;
s3: the main controller 51 of the electronic instrument linkage receives the signal information of each functional unit at certain intervals, stores the information in the local memory 52, simultaneously sends the received information to the control host 71 of the monitoring platform 7 through the communication unit 6, the control host 71 stores the information in the main memory 73, and simultaneously draws the real-time data curve of each functional unit and displays the real-time data curve through the monitor 72;
s4: the electrical instrument linkage main controller 51 monitors and processes real-time data information of the electrical monitoring unit 1, the oil gas monitoring unit 2, the atmospheric environment monitoring unit 4 and the lightning surge monitoring unit 5, when the real-time value of at least one functional unit exceeds a given threshold value, the electrical instrument linkage main controller 51 controls at least one electrical loop related to the alarm value, a relay acts, a breaker of the electrical loop is disconnected, and the electricity utilization safety of a refueling station area is ensured;
s5, a control host 71 of a monitoring platform 7 receives real-time data information of the electric power monitoring unit 1, the oil and gas monitoring unit 2, the atmospheric environment monitoring unit 4 and the lightning surge monitoring unit 3 sent by the electric instrument linkage main controller 51, processes alarm frequency, alarm parameter amplitude, alarm time and environment state of each functional unit, draws fault curves of each functional unit, establishes a fault point discrete mathematical model, adopts a linear fitting method to draw an electric power operation fault curve diagram of a gas station, and pre-judges the operation state of an electric power loop and a fault curve which possibly occurs according to the curve diagram;
and S6, the personnel at the gas station checks the power circuit operation fault curve given by the control host 71 of the management and control platform 7, and obtains the position of the gas station and the power circuit node to perform advanced maintenance or treatment on the gas station power circuit, so as to prevent the influence of the power circuit fault on the safe operation of the gas station.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In this embodiment, a single petrochemical refueling station is taken as an example, and a LORA communication module is taken as a communication unit.
Starting each power loop, wherein the power loops of the embodiment are an oiling machine power loop and a refueling station area illumination power loop, each oiling machine and an illuminating lamp work normally, and a power monitoring unit 1 and an oil gas monitoring unit 2 are started, wherein an oil gas combustible gas detector uses a DR-TC300 combustible gas detector produced by electronic technology, Inc. of Dorus of Shandong, and the detector is in signal connection with a terminal information collector through an RS485 interface; the atmospheric environment monitoring unit 4, wherein, the atmospheric environment detector adopts the many meteorological environment detectors of TS WES-C of Beijing Tianxing intelligent federation science and technology ltd company, and this equipment system adopts the pumping formula sampling, disposes the cutting head and filters to be equipped with the constant temperature control system. The accuracy, stability, reliability and consistency of the monitoring data can be effectively guaranteed. The detector is in signal connection with the terminal information collector through an RS485 interface, and can be widely applied to air quality environment monitoring in places such as city streets, parks, petrochemical plant areas, residential quarters, ports and the like; the lightning surge monitoring unit 3 is characterized in that a lightning surge lightning arrester adopts class B power supply surge lightning protection OK-DY380/60/X produced by Reynaud electronics technology Limited company in Shenzhen, and an Euler (oule) class II power supply lightning protection box is suitable for lightning electromagnetic pulse (LEMP) protection of power supply line systems of 220, 380V (50 Hz/60 Hz) and TN-S, TN-C-S, TT, IT and the like below, is used for the junction of an LPZ OB region or an LPZ1 region and an LPZ2 region in a lightning stroke region, is designed according to the technical standards of GB18802.1 and IEC61643-1, and is in signal connection with a terminal information collector through an RS485 interface. And (4) enabling each functional unit and each sensor module to enter a working state, starting the remote monitoring platform 7 and the communication unit 6, and enabling the whole system to enter the working state.
The master controller 51 of the electronic instrument linkage master control unit 5 records the starting time of each current functional unit, the starting time of this embodiment is 2019, 8 months and 1 days, and the communication unit 6 receives the alarm threshold value of the power monitoring unit 1 set by the control host 71 of the remote control platform 7, wherein the threshold values of the oiling machine power circuit and the lighting power circuit of this embodiment are: the current early warning threshold value of the voltage at 220V is not more than 35A, and the voltage early warning threshold value is 220+40V, the early warning threshold value of the insulation grounding resistance is not lower than 4M omega, the early warning threshold value of the cable temperature is set according to the maximum allowable temperature of the power cable commonly used in China, and the upper limit of the temperature of the polyvinyl chloride insulation cable is 70 ℃ in the embodiment; the alarm threshold value of the oil gas monitoring unit is 1-25% LEL; the alarm threshold value of the atmospheric environment monitoring unit is as follows: the PM2.5 concentration is set according to PM10 and PM2.5 specific limit values in the environmental air quality Standard (GB 3095-2012); the alarm threshold value of the lightning surge monitoring unit is set according to the standard values of the national standard 50057-94 'lightning protection design specification for buildings', GB50174-93 'lightning protection design specification for computer rooms' and the international standard IEC61643 'lightning protection device for power supplies'. The communication unit transmits the unit threshold values to the electrical instrument linkage main controller 51, and the main controller 51 stores the information in the local memory 52.
The electrical instrument linkage main controller 51 receives signal information of each functional unit every 15 minutes, the received information is stored in the local memory 52, meanwhile, the data is compared with set thresholds of each functional unit, here, the instant value of the oiling machine loop is taken as a voltage value 224V, the current value is 15A, the insulation grounding resistance early warning threshold is not lower than 0.5M omega, the cable temperature is 72 ℃, the weather is sunny, the environment is good, the PM2.5 value is 41, the insulation resistance and the cable temperature of the oiling machine power loop exceed the standard, the electrical instrument linkage main controller 51 controls the oiling machine power loop, the relay acts, the power loop breaker is disconnected, and the electricity utilization safety of the oiling station area is ensured. Meanwhile, the electrical instrument linkage main controller 51 sends the received information to the control host 71 of the monitoring platform 7 through the communication unit 6, the control host 71 stores the information into the main memory 73, and sends out an alarm signal according to the overproof information value, and the alarm signal is displayed through the monitor 72.
The personnel of the gas station check the power circuit operation alarm information given by the control host 71 of the management and control platform 7, obtain the power circuit position of the alarm point of the gas station, and maintain or process the power circuit of the gas station, so as to prevent the power circuit fault from affecting the safe operation of the gas station.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims (9)

1. The utility model provides a filling station wisdom safety electric appearance linkage management and control system, includes: the system comprises an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit, a lightning surge monitoring unit, a communication unit, an electric instrument linkage main control unit and a control platform; the remote control system is characterized by comprising a remote control host and a monitor, wherein the remote control host is used for monitoring and controlling the operation of an electric power system, the control host is connected with a communication unit through a wireless signal, and acquires control information of an electricity instrument linkage main control unit through the communication unit, the electricity monitoring unit is controlled by the electricity instrument linkage main control unit, the electricity instrument linkage main control unit is connected with the electricity monitoring unit through an RS485 interface and monitors the voltage, the current, the leakage current, the operation load and the cable temperature of each loop of a gas station, and the electricity instrument linkage main control unit uploads the information of each electricity loop to a remote control host server through the communication unit and stores the information in a main memory;
the electric instrument linkage main control unit is connected with the oil gas monitoring unit through an RS485 interface to acquire oil gas concentration information of a gas station space of the oil gas monitoring unit, and if the oil gas concentration data exceeds a set threshold value, the electric instrument linkage main control unit disconnects the linkage electric power monitoring unit from a power supply loop of a gas station area, and meanwhile, the information is uploaded to a remote control host server through a communication unit and stored in a main memory;
the electric instrument linkage main control unit is connected with the lightning surge monitoring unit through an RS485 interface to acquire information of lightning intensity, surge current and voltage, and disconnects the linkage electric power monitoring unit from a power supply loop of the refueling station area if surge voltage and current data exceed a set threshold value, and simultaneously uploads the information to a remote control host server through a communication unit and stores the information in a main memory;
the electric instrument linkage main control unit is connected with the atmospheric environment monitoring unit through a 485 interface to acquire atmospheric environment information of the refueling station area, and if extreme weather such as severe pollution, heavy fog, heavy rain, snow storm, icing and the like occurs in the environment, the electric instrument linkage main control unit disconnects the linkage electric power monitoring unit from a part of power supply loops of the refueling station area, and meanwhile, the information is uploaded to a remote control host server through a communication unit and stored in a main memory;
the control host displays the information through a monitor, displays and alarms various conditions, and sends control signals to each unit data or alarm condition to carry out remote control.
2. The intelligent safety electric instrument linkage management and control system for the gas station as claimed in claim 1, wherein the electric power monitoring unit comprises: the system comprises an electric load loop, a current sensor, a voltage sensor, a temperature sensor, a microcontroller and a terminal data acquisition module; the electric power circuit comprises an oiling machine electric power circuit, an oiling pump electric power circuit, a lighting electric power circuit, a monitoring unit electric power circuit and an office electric power circuit, wherein each electric power circuit is provided with a current sensor, a voltage sensor and a leakage current sensor of a load.
3. The intelligent safety electric instrument linkage control system for the gas station as claimed in claim 1 or 2, wherein a current transformer of a load current sensor is sampled within a range of 0-1000A, a current transformer is provided for each loop load, a working current and a lightning stroke surge current of the loop are obtained, and the microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit; the sampling range of a voltage transformer of the voltage sensor is 0-20000V, the voltage of each loop load is provided with one voltage transformer, the voltage sensor acquires the working voltage and the lightning stroke induction voltage of the loop, and the microprocessor samples the current information and feeds the current information back to the electrical instrument linkage main control unit; the leakage current sensor is connected with the power supply line leakage protector of each loop load to acquire leakage current information and leakage protection information, and the microprocessor samples the current information and feeds the current information back to the electric instrument linkage main control unit.
4. The intelligent safety electric instrument linkage management and control system of the gas station as claimed in claim 1 or 2, wherein a temperature acquisition thermocouple of the temperature sensor is fixed on a cable core at the end of the electric power loop to acquire the temperature of the cable core in real time, and the microprocessor samples the temperature information of the electric power loop and feeds back the voltage information, the current information, the leakage protection information and the cable temperature information to the electric instrument linkage main control unit through the terminal data acquisition device.
5. The intelligent safety electric instrument linkage control system for the gas station as claimed in claim 1, wherein the electric instrument linkage main control unit is composed of a main controller, a current sampling submodule, a voltage sampling submodule, a temperature sampling submodule, a lightning stroke sampling submodule, an oil gas component sampling submodule and an environment sampling submodule, the main controller further controls a circuit breaker of the electric power circuit through a relay, the main controller samples real-time information of each function module and sends the information to the remote control host server through the communication unit, meanwhile, the main controller compares the real-time information with a threshold value set by the main body, if the real-time value exceeds the set threshold value, the main controller controls the relay to act, the corresponding electric power circuit is disconnected, the safety of the circuit is ensured, and meanwhile, the information is sent to the remote control host server.
6. The intelligent safety electric instrument linkage control system for the gas station as claimed in claim 1, wherein the communication unit comprises a GPS device for providing GPS positioning information, the communication unit is at least one of NB-IOT communication module, LORA communication module and 5G communication module, the communication unit is connected with the electric instrument linkage main controller, the communication unit sends and receives control commands sent by the control platform and feeds the control commands back to the electric instrument linkage main controller, and the electric instrument linkage main controller manages and controls the operation of the electric load loop.
7. The intelligent safety electric instrument linkage control system for the gas station as claimed in claims 1 and 6, wherein when the communication unit is one of NB-IOT communication module or 5G communication module, the communication module is connected with the electric instrument linkage main controller circuit, the electric instrument linkage main controller is respectively connected with the electric power monitoring unit, the oil gas monitoring unit, the atmospheric environment monitoring unit and the thunder and lightning surge monitoring unit through RS485 interface, the electric instrument linkage main controller directly obtains the information of the above function units and stores the information in the local memory, and simultaneously, the electric instrument linkage main controller sends the information of the above function terminal information collectors to the remote monitoring platform through NB-IOT communication module or 5G communication module.
8. The intelligent safety electric instrument linkage management and control system for the gas station as claimed in claims 1 and 6, wherein the communication unit is composed of a LORA communication module, a control module of a LORA gateway concentrator is connected with an electric instrument linkage main controller circuit, a terminal data collector of the LORA is respectively connected with a power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit and a lightning surge monitoring unit through RS485 interface signals, the terminal data collector feeds back data information with the LORA gateway concentrator in a wireless radio frequency form, the gateway concentrator feeds back the acquired information of each terminal information collector to the electric instrument linkage main controller and stores the information in a local memory, and the electric instrument linkage main controller sends the acquired information of each functional terminal information collector to a remote monitoring platform through a wireless communication module of the LORA gateway concentrator.
9. A linkage control system and an application method of an intelligent safety electric instrument of a gas station comprise the following specific steps:
s1: starting each power loop, enabling each load to work normally, starting each monitoring unit system, enabling each functional unit and each sensor module to enter a working state, starting the remote monitoring platform and the communication unit, and enabling the whole system to enter the working state;
s2: the main controller of the electric instrument linkage main control unit records the starting time of each current functional unit, the communication unit receives the alarm threshold value of the electric power monitoring unit, the alarm threshold value of the oil gas monitoring unit and the alarm threshold value of the atmospheric environment monitoring unit which are set by the control host of the remote control platform, and the alarm threshold value of the lightning surge monitoring unit, and feeds the unit threshold values back to the electric instrument linkage main controller, and the main controller stores the information to a local memory;
s3: the electric instrument linkage main controller receives signal information of each functional unit at certain intervals, stores the information in a local memory, simultaneously sends the received information to a control host of the monitoring platform through a communication unit, stores the information in the main memory, simultaneously draws a real-time data curve of each functional unit, and displays the real-time data curve through a monitor;
s4: the electric instrument linkage main controller monitors and processes real-time data information of the electric power monitoring unit, the oil gas monitoring unit, the atmospheric environment monitoring unit and the lightning surge monitoring unit, when the real-time value of at least one functional unit exceeds a given threshold value, the electric instrument linkage main controller controls at least one electric power loop related to the alarm value, and a relay acts to disconnect a breaker of the electric power loop, so that the electricity utilization safety of the refueling station area is ensured;
s5, a control host of a monitoring platform receives real-time data information of an electric power monitoring unit, an oil gas monitoring unit, an atmospheric environment monitoring unit and a lightning surge monitoring unit sent by an electric instrument linkage main controller, processes alarm frequency, alarm parameter amplitude, alarm time and environment state of each functional unit, draws fault curves of each functional unit, establishes a fault point discrete mathematical model, draws a gas station electric power operation fault curve graph by adopting a linear fitting method, and pre-judges the operation state of an electric power loop and a fault curve which possibly occurs according to the curve graph;
and S6, the personnel at the gas station checks the operation fault curve of the electric power loop given by the control host of the management and control platform, and obtains the position of the gas station and the electric power loop node to perform advanced maintenance or treatment on the electric power loop of the gas station, so as to prevent the influence of the electric power loop fault on the safe operation of the gas station.
CN201910965530.2A 2019-10-12 2019-10-12 Intelligent safety electric instrument linkage management and control system for gas station and application method Withdrawn CN110658764A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112079319A (en) * 2020-09-07 2020-12-15 中铁二局第三工程有限公司 Safe efficient diesel oil feeding system
CN113148936A (en) * 2021-04-02 2021-07-23 湖北新强信息技术工程有限公司 Gas station equipment integration safety management system
CN114162487A (en) * 2020-09-11 2022-03-11 中国石油天然气集团有限公司 Oil tank lightning data processing method and device
CN114200984A (en) * 2021-12-10 2022-03-18 黄山奥仪电器有限公司 15 way combination unification electric current type temperature controller
CN114243929A (en) * 2021-12-29 2022-03-25 广州市万保职业安全事务有限公司 Electric appliance management circuit for gas station safety

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112079319A (en) * 2020-09-07 2020-12-15 中铁二局第三工程有限公司 Safe efficient diesel oil feeding system
CN114162487A (en) * 2020-09-11 2022-03-11 中国石油天然气集团有限公司 Oil tank lightning data processing method and device
CN114162487B (en) * 2020-09-11 2023-06-30 中国石油天然气集团有限公司 Oil tank thunder and lightning data processing method and device
CN113148936A (en) * 2021-04-02 2021-07-23 湖北新强信息技术工程有限公司 Gas station equipment integration safety management system
CN114200984A (en) * 2021-12-10 2022-03-18 黄山奥仪电器有限公司 15 way combination unification electric current type temperature controller
CN114200984B (en) * 2021-12-10 2022-09-27 黄山奥仪电器有限公司 15 way combination unification electric current type temperature controller
CN114243929A (en) * 2021-12-29 2022-03-25 广州市万保职业安全事务有限公司 Electric appliance management circuit for gas station safety
CN114243929B (en) * 2021-12-29 2023-11-03 重庆磊博石化有限公司 Electrical appliance management circuit for gas station safety

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