CN111552219A - Coal bed gas storage and transportation whole-process monitoring system and method - Google Patents
Coal bed gas storage and transportation whole-process monitoring system and method Download PDFInfo
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- CN111552219A CN111552219A CN202010471328.7A CN202010471328A CN111552219A CN 111552219 A CN111552219 A CN 111552219A CN 202010471328 A CN202010471328 A CN 202010471328A CN 111552219 A CN111552219 A CN 111552219A
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
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Abstract
The invention provides a system and a method for monitoring the whole process of coal bed gas storage and transportation, belongs to the field of coal bed gas storage and transportation, and aims to provide a system and a method for monitoring the whole process of key environmental information, coal bed gas safety state and logistics information of the coal bed gas storage and transportation process. The system and the method for monitoring the whole storage and transportation process of the coal bed gas can accurately, reliably and safely monitor the whole storage and transportation process of the coal bed gas accurately and safely so as to ensure the safety of the coal bed gas storage and transportation process.
Description
Technical Field
The invention relates to the technical field of coal bed gas storage and transportation, in particular to a coal bed gas storage and transportation whole-process monitoring system and method.
Background
Coal bed gas, commonly known as "gas", is a hydrocarbon gas mainly containing methane, which is mainly adsorbed on the surface of coal matrix particles, and partially dissociated in coal pores or dissolved in a coal bed, is an associated mineral resource of coal, and belongs to unconventional natural gas. In the resource distribution of China, coal is rich in oil and little in gas, and for a long time, China has a huge demand for natural gas, but mainly depends on import. China has rich coal bed gas resources, and the reserves are ranked the first three in the world. The amount of shallow coal bed gas resources with the burial depth within 2000m is about 36 billion cubic meters, and the total amount of recoverable resources is about 10 trillion cubic meters. The coal bed gas is used as high-quality clean energy, and the heat value comparison is as follows: 1 cubic meter of pure coal bed gas is 1.13KG gasoline is 1.21KG standard coal is 9.5 degree electricity. The calorific value is equivalent to that of natural gas, and the natural gas can be mixed and transported and used, and is cleaner after combustion. The development and utilization of the coal bed gas have an important effect on reducing the dependence on natural gas in China, the demand of the natural gas in China can be effectively reduced, and the import dependence is reduced.
For some technical reasons, coal bed gas exploitation and utilization face a plurality of problems, wherein storage and transportation monitoring is monitoring of key environmental parameters, coal bed gas safety state and logistics information of coal bed gas in storage and transportation processes, and is a main problem which puzzles coal bed gas exploitation and utilization at present. Because the coal bed gas is colorless, tasteless and flammable, the coal bed gas is exploded by naked fire under certain concentration, and the characteristics of high pressure, low temperature and the like given to the coal bed gas in the storage and transportation process require a set of accurate, reliable, safe and high-real-time whole-process monitoring system to ensure the safety of the coal bed gas in the storage and transportation process. However, no monitoring system suitable for the whole process of coal bed gas storage and transportation exists up to now.
Disclosure of Invention
The invention aims to provide a system and a method capable of monitoring the whole process of coal bed gas storage and transportation.
In order to solve the technical problems, the invention adopts the technical scheme that:
in a first aspect, a coal bed gas storage and transportation whole-course monitoring system is provided, which comprises a main control device, an acquisition device and a remote monitoring device, wherein the main control device comprises a power supply unit, an early warning processing unit, a storage unit, an environment sensing unit, a control unit, an interaction unit and a communication unit, the acquisition device comprises an internal temperature and humidity sensor, an internal pressure sensor, an internal methane concentration sensor and a redundant sensor circuit, and the acquisition device comprises: the main control device is arranged outside the storage and transportation equipment through a connecting piece, the acquisition device is arranged inside the storage and transportation equipment, and the main control device and the acquisition device are inserted through a connector; the power supply unit comprises a main power supply, a standby power supply, a power supply conditioning circuit, a power supply switching circuit and a charging circuit; the early warning processing unit comprises an acousto-optic warning circuit and a self-checking switching circuit, and the self-checking switching circuit comprises a power supply detection circuit, a power supply switching circuit and a redundant sensor circuit; the environment sensing unit comprises a four-in-one weather station module of temperature, humidity, atmospheric pressure and illumination intensity sensors, a gas sensor, a three-axial acceleration sensor and a GPS positioning module; the control unit comprises a microprocessor and an FPGA control circuit; the communication unit comprises a 4G module and a WiFi module; the internal pressure sensor, the internal temperature and humidity sensor and the internal methane concentration sensor are connected with the main control device through connectors and are respectively used for acquiring the pressure, the temperature, the humidity and the methane concentration of the coal bed gas in the storage and transportation equipment to form internal coal bed gas data; the connector is connected with the microprocessor of the control unit and used for sending internal coalbed methane data to the microprocessor or receiving instructions of the microprocessor; the redundant sensor circuit is connected with the FPGA control circuit of the control unit and used for receiving a switching control instruction from the control unit; the connector is connected with the power supply unit, and the power supply unit is used for supplying power to the acquisition device through the connector; the environment sensing unit is connected with the control unit through an interface circuit and is used for transmitting external environment data formed by temperature, humidity, atmospheric pressure, illumination intensity, vibration and positioning data acquired by the four-in-one weather station module, the gas sensor, the three-axial acceleration sensor and the GPS positioning module to the microprocessor or receiving an instruction from the microprocessor; the control unit is connected with the communication unit, the communication unit is in wireless connection with the remote monitoring device, and the control unit uploads internal coalbed methane data and external environment data to the remote monitoring device or receives instructions from the remote monitoring device through the communication unit; the power supply detection circuit of the early warning processing unit is connected with both the main power supply and the standby power supply and is used for detecting the power supply states of the main power supply and the standby power supply; the power supply detection circuit is connected with the FPGA control circuit and is used for transmitting the power supply states of the main power supply and the standby power supply to the control unit in real time, and the control unit is used for selecting a power supply mode according to the power supply states; an acousto-optic alarm circuit, a power supply switching circuit and a redundant sensor circuit in the early warning processing unit are all connected with an FPGA control circuit of the control unit and are used for acting under the control of the FPGA control circuit; the storage unit is connected with the microprocessor of the control unit and the FPGA control circuit and is used for reading/writing data and instructions received and sent by the microprocessor and the FPGA control circuit; the power supply unit is connected with the control unit, the interaction unit, the environment sensing unit, the communication unit, the early warning processing unit and the storage unit and used for supplying power to the control unit, the interaction unit, the environment sensing unit, the communication unit, the early warning processing unit and the storage unit.
Optionally, the main control device and the collection device are sequentially coated with a pressure resistant layer, a waterproof layer, a heat insulating layer, an electromagnetic shielding layer and an internal protective layer from outside to inside.
Optionally, the control unit further comprises a clock circuit, and the clock circuit is connected with both the microprocessor of the control unit and the FPGA control circuit and is used for obtaining calendar time for storage and transportation of the coal bed gas.
Optionally, each type of sensor in the acquisition device includes a main sensor and a backup sensor, the main sensor and the backup sensor are respectively connected to two input ends of a multiplexer in the redundant sensor circuit, and a control end of the multiplexer is connected to a control port allocated by the FPGA control circuit.
Optionally, the storage unit includes a main storage, a standby storage, and a data read-write module, and the main storage and the standby storage are connected with the microprocessor and the FPGA control circuit through the data read-write module; the main storage is an SD card, the standby storage is a Flash card, and the Flash card is fixed in the main control device and cannot be detached; the SD card is pluggable in the main control device; the main storage and the standby storage are used for storing internal coal bed gas data, external environment data and logistics data.
Optionally, the interaction unit includes a manual wake-up circuit, an LCD touch screen, and a USB download circuit; the LCD touch screen is connected with the microprocessor, the manual wake-up circuit is connected with the FPGA control circuit, and the USB download circuit is connected with both the microprocessor and the FPGA control circuit; the manual wake-up circuit is used for waking up the control unit and the LCD touch screen, and the LCD touch screen is used for displaying and man-machine interaction; the USB downloading circuit is used for downloading data or instructions.
In a second aspect, a coal bed gas storage and transportation whole-process monitoring method is provided, and the coal bed gas storage and transportation whole-process monitoring method adopts the coal bed gas storage and transportation whole-process monitoring system of the first aspect, and includes the following steps:
s1, when the FPGA control circuit receives a wake-up signal of the manual wake-up circuit or a wake-up instruction sent by the remote monitoring device, the power supply unit is powered on and started, and the FPGA control circuit controls the power supply detection circuit to perform self-detection on the power supply unit;
s2, when the power supply detection circuit detects that the voltage of the main power supply is lower than a first preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform three-stage early warning, meanwhile, the FPGA control circuit sends a switching control instruction to the power supply switching circuit, and the power supply switching circuit controls the switching to the standby power supply to supply power; in the process of supplying power to the standby power supply, the power supply detection circuit detects the voltage of the standby power supply in real time, when the voltage of the standby power supply is greater than a second preset threshold voltage, the FPGA control circuit controls the standby power supply to supply power to each power utilization module and each chip of the system through the power supply conditioning circuit continuously, and controls the standby power supply to charge the main power supply through the charging circuit; when the power supply detection circuit detects that the voltage of the main power supply is increased to be higher than a first preset threshold voltage or the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the power supply switching circuit to switch the main power supply for supplying power;
and S3, when the voltage of the main power supply is lower than a first preset threshold voltage and the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform secondary early warning.
S4, when the voltage of the main power supply is higher than a first preset threshold voltage or the voltage of the standby power supply is higher than a second preset threshold voltage, the microprocessor tests whether the communication with the remote monitoring device can be established through the communication unit;
s4, after the communication unit establishes communication with the remote monitoring device, the microprocessor sends self-checking instructions to the environment sensing unit, the acquisition device and the storage unit, and determines respective self-checking results according to response data frames returned by the environment sensing unit, the acquisition device and the storage unit;
s5, when the microprocessor determines that the environment sensing unit, the collecting device and the storage unit are all self-checking normal, the microprocessor control system enters a normal working mode, an internal pressure sensor, an internal temperature and humidity sensor and an internal methane concentration sensor in the acquisition device respectively acquire pressure, temperature and humidity and methane concentration data inside the storage and transportation equipment to form internal coalbed methane data, a four-in-one weather station module, a gas sensor, a three-axial acceleration sensor and a GPS positioning module in the environment sensing unit respectively acquire temperature, humidity, atmospheric pressure, illumination intensity, gas composition and concentration of external environment, vibration acceleration and GPS positioning data of all directions to form external environment data, and sending the internal coalbed methane data and the external environment data to a microprocessor for data analysis and processing, writing into a storage unit and sending to a remote monitoring device.
S6, when the communication between the communication unit and the remote monitoring device is failed to establish, and any one of the storage unit, the environment sensing unit or the acquisition device finds a fault through self-detection, the FPGA control circuit controls the acousto-optic alarm circuit to perform secondary early warning.
Optionally, the coal bed methane storage and transportation full-process monitoring method further includes the following steps:
s7, when the microprocessor determines that the storage and transportation equipment is in a transportation stage through data analysis and processing, and the data acquired by all sensors in the acquisition device and the environment sensing unit meet the threshold requirement of the transportation stage, the microprocessor control system keeps a normal working mode and controls the 4G module to communicate with the remote monitoring device, and the FPGA control circuit controls the sensors in the acquisition device and the environment sensing unit to sample according to the sampling frequency set by the normal working mode;
s8, when the microprocessor determines that the storage and transportation equipment is in a storage stage through data analysis and processing, and the data acquired by all the sensors in the acquisition device and the environment sensing unit meet the threshold requirement of the storage stage, the microprocessor control system enters a low power consumption mode and controls the WiFi module to communicate with the remote monitoring device, the FPGA control circuit controls the sensors in the acquisition device and the environment sensing unit to sample according to the sampling frequency set in the low power consumption mode, and the FPGA control circuit controls the GPS positioning module, the four-in-one weather station module and the 4G module to stop working;
s9, when the microprocessor determines that the internal part of the storage and transportation equipment is idle and has no stored coal bed gas through data analysis and processing, and the data acquired by all the sensors in the environment sensing unit are within a set threshold range, the microprocessor control system enters a sleep mode, the FPGA control circuit controls the triaxial acceleration sensor to continue working, the other sensors or modules in the acquisition device and the environment sensing unit stop working, and the communication unit is controlled to keep receiving information so as to receive a wake-up instruction of the remote monitoring device;
s10, when the microprocessor determines that the storage and transportation equipment is in a dangerous situation through data analysis and processing, the FPGA control circuit controls the acousto-optic alarm circuit to perform primary early warning, controls the acquisition device and each sensor in the environment sensing unit to enter a high-speed sampling mode, enables each sensor to perform sampling at a sampling frequency set by the high-speed sampling mode, and uploads internal coal bed methane data and external environment data to the remote monitoring device in real time.
Optionally, the coal bed methane storage and transportation full-process monitoring method further includes the following steps:
s11, when the system is in the sleep mode, the microprocessor control system enters the normal working mode after the FPGA control circuit receives the manual wake-up signal from the manual wake-up circuit, or the microprocessor control system enters the normal working mode after the communication unit receives the wake-up instruction of the remote monitoring device;
and S12, when the system enters a normal working mode, the FPGA control circuit activates the LCD touch screen, and the LCD touch screen displays coal bed gas data and external environment data in real time in a data form of a table and a change curve.
Optionally, the coal bed methane storage and transportation full-process monitoring method further includes the following steps:
s13, after the LCD touch screen receives the inquiry or operation management signal or the inquiry or operation management signal from the remote monitoring device, the microprocessor acquires the synchronization time through the clock circuit, generates the operation log and writes the operation log into the standby memory through the data read-write module;
s14, the storage unit stores logistics data, internal coalbed methane data and external environment data of a coalbed methane transportation whole process at regular time, and when the logistics data, the internal coalbed methane data and the external environment data are updated each time, the updated data are sent to the remote monitoring device.
The invention has the beneficial effects that:
the system and the method for monitoring the whole storage and transportation process of the coal bed gas can accurately, reliably and safely monitor the whole storage and transportation process of the coal bed gas accurately and safely so as to ensure the safety of the coal bed gas storage and transportation process.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of the peripheral structure of the main control device and the acquisition device in fig. 1.
FIG. 3 is a schematic diagram of the connection of primary and backup sensors to redundant sensor circuits.
Fig. 4 is a schematic diagram of the power supply unit of fig. 1.
Fig. 5 is a schematic diagram of the switching between the operation modes of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the coal bed methane storage and transportation whole-process monitoring system in this embodiment includes a main control device 001, an acquisition device 002, and a remote monitoring device 003, where the main control device 001 includes a power supply unit 101, an early warning processing unit 102, a storage unit 103, an environment sensing unit 104, a control unit 105, an interaction unit 106, and a communication unit 107, and the acquisition device 002 includes an internal temperature and humidity sensor, an internal pressure sensor, an internal methane concentration sensor, and a redundant sensor circuit, where: the main control device 001 is arranged outside the storage and transportation equipment through a connecting piece, the acquisition device 002 is arranged inside the storage and transportation equipment, and the main control device 001 and the acquisition device 002 are inserted through a connector; as shown in fig. 4, the power supply unit 101 includes a main power supply, a standby power supply, a power supply conditioning circuit, a power supply switching circuit, and a charging circuit; the early warning processing unit 102 comprises an audible and visual alarm circuit and a self-checking switching circuit 121, wherein the self-checking switching circuit 121 comprises a power supply detection circuit, a power supply switching circuit and a redundant sensor circuit; the environment sensing unit 104 comprises a four-in-one weather station module of temperature, humidity, atmospheric pressure and illumination intensity sensors, a gas sensor, a three-axis acceleration sensor and a GPS positioning module; the control unit 105 comprises a microprocessor and an FPGA control circuit; the communication unit 107 comprises a 4G module and a WiFi module; the internal pressure sensor, the internal temperature and humidity sensor and the internal methane concentration sensor are connected with the main control device 1 through connectors and are respectively used for acquiring the pressure, the temperature, the humidity and the methane concentration of the coal bed gas in the storage and transportation equipment to form internal coal bed gas data; the connector is connected with the microprocessor of the control unit 105 and used for sending internal coalbed methane data to the microprocessor or receiving instructions of the microprocessor; the redundant sensor circuit is connected with the FPGA control circuit of the control unit 105 and is used for receiving a switching control instruction from the control unit 105; the connector is connected with the power supply unit 101, and the power supply unit 101 is used for supplying power to the acquisition device 2 through the connector; the environment sensing unit 104 is connected with the control unit 105 through an interface circuit, and the environment sensing unit 104 is used for transmitting external environment data formed by temperature, humidity, atmospheric pressure, illumination intensity, vibration and positioning data collected by the four-in-one weather station module, the gas sensor, the three-axial acceleration sensor and the GPS positioning module to the microprocessor or receiving an instruction from the microprocessor; the control unit 105 is connected with the communication unit 107, the communication unit 107 is wirelessly connected with the remote monitoring device 3, and the control unit 105 uploads internal coalbed methane data and external environment data to the remote monitoring device 3 or receives instructions from the remote monitoring device 3 through the communication unit 107; the power detection circuit of the early warning processing unit 102 is connected to both the main power supply and the standby power supply, and is used for detecting the power states of the main power supply and the standby power supply; the power supply detection circuit is connected with the FPGA control circuit and used for transmitting the power supply states of the main power supply and the standby power supply to the control unit 105 in real time, and the control unit 105 is used for selecting a power supply mode according to the power supply states; an acousto-optic alarm circuit, a power supply switching circuit and a redundant sensor circuit in the early warning processing unit 102 are all connected with an FPGA control circuit of the control unit 105 and are used for acting under the control of the FPGA control circuit; the storage unit 103 is connected with both the microprocessor and the FPGA control circuit of the control unit 105, and is used for reading/writing data and instructions received and sent by the microprocessor and the FPGA control circuit; the power supply unit 101 is connected to the control unit 105, the interaction unit 106, the environment sensing unit 104, the communication unit 107, the early warning processing unit 102 and the storage unit 103, and is configured to supply power to the control unit 105, the interaction unit 106, the environment sensing unit 104, the communication unit 107, the early warning processing unit 102 and the storage unit 103.
Through setting up main control device 001 and collection system 002 and pegging graft through the connector, make main control device 001 and collection system 002 adopt split type design to convenient to detach and installation.
The 4G module and WiFi module in the communication unit 107 may be used for different phases of warehousing and transportation. For example, when the warehousing equipment is in the warehousing stage, the communication unit 107 establishes communication through the WiFi module; when the storage and transportation device is in the transport phase, the communication unit 107 establishes communication via the 4G module. Wherein, the 4G module is downward compatible with GPRS.
The main power supply is a lithium battery, the standby power supply is a solar panel, the main power supply and the standby power supply are selected by a power supply switching circuit, and the power supply switching circuit and the standby power supply power for each module, each circuit and each chip after voltage reduction and voltage stabilization through the power supply conditioning circuit. When the power supply unit 101 supplies power, the main power supply supplies power, at this time, the control end of the power supply switching circuit is at a high level, and the PMOS transistor cuts off the power supply of the solar battery, and when the voltage of the main power supply is lower than a first preset threshold voltage, the control end of the power supply switching circuit is switched to a low level to supply power to the standby power supply under the control of the control unit 105. In the transportation stage, the solar panel can automatically charge the main power supply and temporarily supply power to the system under the condition of good weather condition so as to improve the cruising ability of the system.
Optionally, as shown in fig. 2, the main control device 001 and the collection device 002 are sequentially coated with a pressure resistant layer 05, a waterproof layer 04, a heat insulating layer 03, an electromagnetic shielding layer 02 and an inner protection layer 01 from outside to inside. Through setting up these layers, not only can play the effect of protection main control device 001 and collection system 002, can avoid main control device 001 and collection system 002's signal to receive the interference moreover. The main control device 001 and the collection device 002 are sealed with the storage and transportation equipment through epoxy resin or silicon rubber, so that the sealing performance between the main control device 001 and the collection device 002 is improved. Main control unit 001 and collection device 002 adopt solitary sealed mode, make main control unit 001 demolish can not destroy collection device 002 and whole warehousing and transportation equipment's leakproofness, have increased the security behind the warehousing and transportation equipment installation monitoring system, easy to maintain and overhaul. In conclusion, the main control device 001 and the acquisition device 002 are connected to form two layers, the first layer is connected through a connector to realize bidirectional signal connection, and the second layer is connected with the storage and transportation equipment through a connecting piece to realize connection and fixation with the storage and transportation equipment.
Optionally, the control unit 105 further includes a clock circuit, and the clock circuit is connected to both the microprocessor of the control unit 105 and the FPGA control circuit, and is configured to obtain the calendar time for storage and transportation of the coal bed methane. By arranging the clock circuit, information such as data recorded by the monitoring system can correspond to time.
Optionally, as shown in fig. 3, each type of sensor in the acquisition device 2 includes a main sensor and a backup sensor, the main sensor and the backup sensor are respectively connected to two input ends of a multiplexer in the redundant sensor circuit, and a control end of the multiplexer is connected to a control port allocated by the FPGA control circuit. When the main sensor breaks down, the FPGA control circuit controls and switches to the standby sensor to acquire data.
Optionally, the storage unit 103 includes a main storage, a standby storage, and a data read-write module, and the main storage and the standby storage are connected to the microprocessor and the FPGA control circuit through the data read-write module; the main storage is an SD card, the standby storage is a Flash card, and the Flash card is fixed in the main control device 001 and is not detachable; the SD card is pluggable in the main control device 001, so that data can be conveniently transferred and stored; the main storage and the standby storage are used for storing internal coal bed gas data, external environment data and logistics data. The logistics data comprises information of warehouse entry and exit, administrator information, transportation mode, batch, production place, production time, transportation time and the like. The data in the storage and transportation process are stored in the main storage, and meanwhile important data are backed up in Flash; when the system self-checks that the main storage SD card is not inserted, the SD card is damaged or the SD card is full and cannot be written, the system gives an alarm to the microprocessor, and simultaneously takes the Flash card as a data storage space in the whole storage and transportation process.
Optionally, the interaction unit 106 includes a manual wake-up circuit, an LCD touch screen, and a USB download circuit; the LCD touch screen is connected with the microprocessor, the manual wake-up circuit is connected with the FPGA control circuit, and the USB download circuit is connected with both the microprocessor and the FPGA control circuit; the manual wake-up circuit is used for waking up the control unit 105 and the LCD touch screen, and the LCD touch screen is used for displaying and man-machine interaction; the USB downloading circuit is used for downloading data or instructions.
The embodiment of the invention also provides a coal bed gas storage and transportation whole-process monitoring method, which adopts the coal bed gas storage and transportation whole-process monitoring system and comprises the following steps:
s1, when the FPGA control circuit receives the wake-up signal of the manual wake-up circuit or the wake-up command sent by the remote monitoring device 003, the power supply unit 101 is powered on and started, and the FPGA control circuit controls the power supply detection circuit to perform self-detection on the power supply unit 101.
The power supply unit 101 performs self-test mainly to detect whether the main power supply or the backup power supply has a fault and can supply the voltages required by the modules and chips.
S2, when the power supply detection circuit detects that the voltage of the main power supply is lower than a first preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform three-stage early warning (common early warning), meanwhile, the FPGA control circuit sends a switching control instruction to the power supply switching circuit, and the power supply switching circuit controls the switching to the standby power supply to supply power; in the process of supplying power to the standby power supply, the power supply detection circuit detects the voltage of the standby power supply in real time, when the voltage of the standby power supply is greater than a second preset threshold voltage, the FPGA control circuit controls the standby power supply to supply power to each power utilization module and each chip of the system through the power supply conditioning circuit continuously, and controls the standby power supply to charge the main power supply through the charging circuit; when the power supply detection circuit detects that the voltage of the main power supply is increased to be higher than a first preset threshold voltage or the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the power supply switching circuit to switch the main power supply to supply power.
When the voltage of the main power supply is lower than the first preset threshold voltage, the main power supply cannot meet the voltage required by each module and each chip, and therefore, the power supply needs to be switched. And when the voltage of the standby power supply is greater than the second preset threshold voltage, the standby power supply is proved to be capable of providing stable power supply voltage for each module and each chip.
In addition, the system also takes a three-level warning when: 1. main storage space is not sufficient or is not inserted, but spare storage is sufficient. 2. The sensor in the acquisition device 002 failed, but was cleared after switching to a backup sensor through a redundant sensor circuit. The third-level early warning is sent out under the condition that the normal operation of the system cannot be seriously influenced, and is used for reminding a driver or a manager to maintain and replace as soon as possible under the condition that the condition allows.
And S3, when the voltage of the main power supply is lower than a first preset threshold voltage and the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform secondary early warning (yellow early warning).
The system takes a secondary warning when: firstly, the voltage of a main power supply is lower than a first preset threshold voltage, and the voltage of a standby power supply is lower than a second preset threshold voltage; secondly, the sensor of the acquisition device 002 is damaged, and the redundant sensor circuit cannot be eliminated after being switched, or the circuit or module of the main control device 001 fails; thirdly, when the main storage is not inserted, the spare storage space is insufficient; and fourthly, the communication with the remote monitoring device 003 is cut off, and the data cannot be uploaded. The secondary early warning is that sound and light alarms with moderate frequency are sent out under the condition that the system is in failure and can not be eliminated through the system and the normal operation can be blocked, so as to remind a manager that the system needs to be maintained immediately.
S4, when the voltage of the main power supply is higher than the first preset threshold voltage or the voltage of the backup power supply is higher than the second preset threshold voltage, the microprocessor tests whether the communication with the remote monitoring device 003 is able to be established through the communication unit 107.
S4, after the communication unit 107 establishes communication with the remote monitoring device 003, the microprocessor sends self-test instructions to the environmental sensing unit 104, the collecting device 002 and the storage unit 103, and determines their respective self-test results according to the response data frames returned by them.
The self-test of the environment sensing unit 104, the acquisition device 002 and the storage unit 103 is mainly to detect whether they are malfunctioning.
S5, when the microprocessor determines that the environmental sensing unit 104, the collecting device 002 and the storage unit 103 are all self-checking normal, the microprocessor control system enters a normal working mode, an internal pressure sensor, an internal temperature and humidity sensor and an internal methane concentration sensor in the acquisition device 002 respectively acquire pressure, temperature and humidity and methane concentration data inside the storage and transportation equipment to form internal coalbed methane data, a four-in-one weather station module, a gas sensor, a three-axial acceleration sensor and a GPS positioning module in the environment sensing unit 104 respectively acquire temperature, humidity, atmospheric pressure, illumination intensity, gas composition and concentration of external environment, vibration acceleration and GPS positioning data in all directions to form external environment data, and sending the internal coalbed methane data and the external environment data to a microprocessor for data analysis and processing, writing into a storage unit 103 and sending to a remote monitoring device 003.
When the microprocessor analyzes and processes data, the microprocessor can adopt algorithm analysis, threshold comparison, data management, neural network algorithm and the like to judge the storage and transportation state and select the working mode. The specific algorithms and routines referred to herein are not overly descriptive in their embodiments.
S6, when the communication between the communication unit 107 and the remote monitoring device 003 is failed to establish, and any one of the memory list 103, the environment sensing unit 104 or the acquisition device 002 detects a fault by self-detection, the FPGA control circuit controls the sound-light alarm circuit to perform secondary early warning (yellow early warning).
Further, the coal bed gas storage and transportation whole-process monitoring method further comprises the following steps:
and S7, when the microprocessor determines that the storage and transportation equipment is in the transportation stage through data analysis and processing, and the data acquired by all the sensors in the acquisition device 002 and the environment sensing unit 104 meet the threshold requirement of the transportation stage, the microprocessor control system keeps the normal working mode and controls the 4G module to communicate with the remote monitoring device 003, and the FPGA control circuit controls the sensors in the acquisition device 002 and the environment sensing unit 104 to sample according to the sampling frequency set by the normal working mode.
The data collected by all the sensors in the collecting device 002 and the environmental sensing unit 104 meet the threshold requirement of the transportation stage because of the need of fast sampling if some emergency occurs during transportation. For example, in the transportation process, the vibration acceleration data collected by the triaxial acceleration sensor is in a continuous and disordered change due to the influence of the damping performance of the road surface and the transportation vehicle, however, when an accident occurs, the data collected by the triaxial acceleration sensor is suddenly changed, and thus the threshold requirement of the transportation stage may be exceeded or not be met, and at this time, the rapid sampling mode needs to be switched.
S8, when the microprocessor determines that the storage and transportation equipment is in the storage stage through data analysis and processing, and the data acquired by all the sensors in the acquisition device 002 and the environment sensing unit 104 meet the threshold requirement of the storage stage, the microprocessor control system enters a low power consumption mode and controls the WiFi module to communicate with the remote monitoring device 003, the FPGA control circuit controls the sensors in the acquisition device 002 and the environment sensing unit 104 to sample according to the sampling frequency set in the low power consumption mode, and the FPGA control circuit controls the GPS positioning module, the four-in-one weather station module and the 4G module to stop working.
Data collected by all sensors meet the threshold requirement of the storage stage, which shows that the environmental parameters are stable, and at the moment, a low power consumption mode is adopted for the energy-saving system.
S9, when the microprocessor determines through data analysis and processing that the coal bed gas is not stored in the storage and transportation equipment in an idle state, and the data acquired by all the sensors in the environment sensing unit 104 are within a set threshold range, the microprocessor control system enters a sleep mode, the FPGA control circuit controls the triaxial acceleration sensor to continue working, the other sensors or modules in the acquisition device 002 and the environment sensing unit 104 stop working, and the communication unit 107 is controlled to keep receiving information to receive a wake-up instruction of the remote monitoring device 003.
In the embodiment of the invention, the coal bed gas is not stored in the storage and transportation equipment in an idle state, and the data acquired by all the sensors are within the range of the set threshold value, which shows that the surrounding environment of the storage and transportation equipment is stable, and at the moment, all the sensors do not need to work, so that the system enters a sleep mode.
The coal bed gas storage and transportation whole-process monitoring system can intelligently switch working modes, when parameters are stable and have no dangerous case or fault in the storage and transportation process, too many modules need to acquire the parameters too frequently, and in order to reduce unnecessary power consumption of the system and ensure the reliability of the system and the effectiveness of monitoring data, the system has 4 working modes, namely a normal working mode, a high-speed sampling mode, a low-power consumption mode and a dormant mode. When the system is in the transportation stage and all data are normal, the system keeps a normal working mode, the 4G module is communicated with the remote monitoring device 003, and all sensors perform sampling according to a normal set rule. When the system is in a storage stage, and various parameters of the environment and the coal bed gas are stable, the system enters a low power consumption mode, the WiFi module is communicated with the remote monitoring device 003 through a route installed in a warehouse, each sensor performs low-speed sampling, and the GPS positioning module, the four-in-one weather station module and the 4G module stop working. When the coal bed gas is not stored in the storage and transportation facility in an idle state and various environmental parameters are normal, the system automatically enters a sleep mode, only the triaxial acceleration sensor works normally to monitor vibration so as to wake up the system in an emergency, and meanwhile, the temperature sensor samples and monitors the temperature at a low speed. When any environment or coal bed gas parameter passes a threshold value and is identified as a real dangerous case by the microprocessor, the system immediately enters a high-speed sampling mode, each module accelerates the sampling frequency, triggers acousto-optic early warning, and uploads data to the remote monitoring device 003 in real time, as shown in fig. 5, the system is a schematic diagram of switching between the working modes.
S10, when the microprocessor determines that the storage and transportation equipment is in a dangerous situation through data analysis and processing, the FPGA control circuit controls the acousto-optic alarm circuit to perform primary early warning (red early warning), controls the sensors in the acquisition device 002 and the environment sensing unit 104 to enter a high-speed sampling mode, enables the sensors to perform sampling at the sampling frequency set by the high-speed sampling mode, and uploads internal coal bed methane data and external environment data to the remote monitoring device 003 in real time.
The dangerous case occurs when the microprocessor finds out the conditions of abnormal vibration data and the like caused by the temperature and humidity parameter exceeding a threshold value, pressure reduction and concentration reduction caused by coal bed gas leakage, impact and the like through data analysis and processing. When the system sends out primary early warning, the microprocessor controls the acousto-optic early warning circuit to send out high-frequency acousto-optic early warning signals through the FPGA, each sensor collects various parameters in real time in a high-frequency mode, dangerous cases and real-time data are reported to the remote monitoring device 003 through the communication unit 107, and a processing method suggestion is given or the guidance of the remote monitoring device 003 is transmitted through a data analysis result searching database so as to help to eliminate the dangerous cases.
Further, the coal bed gas storage and transportation whole-process monitoring method further comprises the following steps:
s11, when the system is in the sleep mode, the microprocessor control system enters the normal operation mode after the FPGA control circuit receives the manual wake-up signal from the manual wake-up circuit, or the microprocessor control system enters the normal operation mode after the communication unit receives the wake-up command from the remote monitoring device 003.
And S12, when the system enters a normal working mode, the FPGA control circuit activates the LCD touch screen, and the LCD touch screen displays coal bed gas data and external environment data in real time in a data form of a table and a change curve.
The microprocessor displays various parameters on the LCD in the form of graphs and real-time curves, so that the data can be directly viewed. An administrator can check data through the LCD touch screen, set various parameters, input control instructions and the like; before interaction, the internal program makes login verification for the administrator, and compares the login verification with the administrator data in the database to obtain the authority.
And S13, after the LCD touch screen receives the inquiry or operation management signal or the inquiry or operation management signal from the remote monitoring device 003, the microprocessor acquires the synchronous time through the clock circuit, generates an operation log and writes the operation log into the spare memory through the data reading and writing module.
The data monitoring center 003 can remotely view data or remotely transmit control instructions through the communication unit 107.
S14, the storage unit 103 stores logistics data, internal coalbed methane data and external environment data of the whole coalbed methane transportation process, and sends the updated data to the remote monitoring device 003 in real time when the logistics data, the internal coalbed methane data and the external environment data are updated every time.
Specifically, the storage unit 103 has a function of storing logistics data, and specifically can store information such as a record origin, a concentration, a number, a driver, a belonging warehouse manager, a responsible person, a warehouse entry/exit time, a warehouse number, and historical logistics. Each time an information update is made, the information is sent to the remote monitoring device 003 and stored in a memory archive backup. When the monitoring system starts to perform a coal bed gas storage and transportation monitoring task, the production place, the concentration, the components, the warehousing information and the administrator information of the monitoring system are initialized by an administrator; when the vehicle leaves or enters the warehouse, the vibration information is obtained through the triaxial acceleration sensor, the GPS positioning module is awakened to obtain position change information, the change of the storage and transportation state is identified by the microprocessor, meanwhile, the starting time of the storage or transportation stage and the duration of the last storage and transportation stage are updated, the transportation path is recorded in the transportation stage, and the database is matched to obtain the information of the entering and leaving the warehouse of the current time; and in the transportation process, the position information acquired by the GPS positioning module is updated and recorded in the logistics information in real time, and the time of the logistics arriving at the destination is estimated.
It should be noted that, the steps involved in the coal bed methane storage and transportation whole-process monitoring method are mainly used for explaining the functions to be realized in the embodiment of the present invention, and there may not be a direct precedence relationship among the steps.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a coal bed gas warehousing and transportation whole journey monitoring system, its characterized in that includes main control device (001), collection system (002) and remote monitoring device (003), main control device (001) includes power supply unit (101), early warning processing unit (102), memory cell (103), environmental perception unit (104), control unit (105), interactive unit (106) and communication unit (107), collection system (002) includes inside temperature and humidity sensor, inside pressure sensor, inside methane concentration sensor and redundant sensor circuit, wherein:
the main control device (001) is arranged outside the storage and transportation equipment through a connecting piece, the acquisition device (002) is arranged inside the storage and transportation equipment, and the main control device (001) and the acquisition device (002) are inserted through a connector; the power supply unit (101) comprises a main power supply, a standby power supply, a power supply conditioning circuit, a power supply switching circuit and a charging circuit; the early warning processing unit (102) comprises an audible and visual alarm circuit and a self-checking switching circuit (121), wherein the self-checking switching circuit (121) comprises a power supply detection circuit, a power supply switching circuit and a redundant sensor circuit; the environment sensing unit (104) comprises a four-in-one weather station module of temperature, humidity, atmospheric pressure and illumination intensity sensors, a gas sensor, a three-axial acceleration sensor and a GPS positioning module; the control unit (105) comprises a microprocessor and an FPGA control circuit; the communication unit (107) comprises a 4G module and a WiFi module; the internal pressure sensor, the internal temperature and humidity sensor and the internal methane concentration sensor are connected with the main control device (1) through connectors and are respectively used for collecting the pressure, the temperature, the humidity and the methane concentration of the coal bed gas in the storage and transportation equipment to form internal coal bed gas data; the connector is connected with a microprocessor of the control unit (105) and used for sending internal coal bed gas data to the microprocessor or receiving instructions of the microprocessor; the redundant sensor circuit is connected with an FPGA control circuit of the control unit (105) and used for receiving a switching control instruction from the control unit (105); the connector is connected with the power supply unit (101), and the power supply unit (101) is used for supplying power to the acquisition device (2) through the connector; the environment sensing unit (104) is connected with the control unit (105) through an interface circuit, and the environment sensing unit (104) is used for transmitting external environment data formed by temperature, humidity, atmospheric pressure, illumination intensity, vibration and positioning data collected by the four-in-one weather station module, the gas sensor, the three-axial acceleration sensor and the GPS positioning module to the microprocessor or receiving an instruction from the microprocessor; the control unit (105) is connected with the communication unit (107), the communication unit (107) is wirelessly connected with the remote monitoring device (3), and the control unit (105) uploads internal coal bed gas data and external environment data to the remote monitoring device (3) or receives instructions from the remote monitoring device (3) through the communication unit (107); the power supply detection circuit of the early warning processing unit (102) is connected with both the main power supply and the standby power supply and is used for detecting the power supply states of the main power supply and the standby power supply; the power supply detection circuit is connected with the FPGA control circuit and used for transmitting the power supply states of the main power supply and the standby power supply to the control unit (105) in real time, and the control unit (105) is used for selecting a power supply mode according to the power supply states; an acousto-optic alarm circuit, a power supply switching circuit and a redundant sensor circuit in the early warning processing unit (102) are all connected with an FPGA control circuit of the control unit (105) and are used for acting under the control of the FPGA control circuit; the storage unit (103) is connected with the microprocessor and the FPGA control circuit of the control unit (105) and is used for reading/writing data and instructions received and sent by the microprocessor and the FPGA control circuit; the power supply unit (101) is connected with the control unit (105), the interaction unit (106), the environment sensing unit (104), the communication unit (107), the early warning processing unit (102) and the storage unit (103) and used for supplying power to the control unit (105), the interaction unit (106), the environment sensing unit (104), the communication unit (107), the early warning processing unit (102) and the storage unit (103).
2. The coal bed methane storage and transportation whole-process monitoring system according to claim 1, wherein the main control device (001) and the collection device (002) are sequentially coated with a pressure resistant layer (05), a waterproof layer (04), a heat insulating layer (03), an electromagnetic shielding layer (02) and an inner protective layer (01) from outside to inside.
3. The coal bed methane storage and transportation whole-process monitoring system according to claim 1, wherein the control unit (105) further comprises a clock circuit, and the clock circuit is connected with both the microprocessor and the FPGA control circuit of the control unit (105) and is used for obtaining calendar time for the storage and transportation of the coal bed methane.
4. The coal bed methane storage and transportation whole-process monitoring system according to claim 1, wherein each type of sensor in the collection device (2) comprises a main sensor and a spare sensor, the main sensor and the spare sensor are respectively connected with two input ends of a multiplexer in a redundant sensor circuit, and a control end of the multiplexer is connected to a control port distributed by the FPGA control circuit.
5. The coal bed methane storage and transportation whole-course monitoring system according to claim 1, wherein the storage unit (103) comprises a main storage module, a standby storage module and a data read-write module, and the main storage module and the standby storage module are connected with the microprocessor and the FPGA control circuit through the data read-write module; the main storage is an SD card, the standby storage is a Flash card, and the Flash card is fixed in the main control device (001) and cannot be detached; the SD card is pluggable in the main control device (001); the main storage and the standby storage are used for storing internal coal bed gas data, external environment data and logistics data.
6. The coal bed methane storage and transportation whole-process monitoring system of claim 1, wherein the interaction unit (106) comprises a manual wake-up circuit, an LCD touch screen and a USB download circuit; the LCD touch screen is connected with the microprocessor, the manual wake-up circuit is connected with the FPGA control circuit, and the USB download circuit is connected with both the microprocessor and the FPGA control circuit; the manual wake-up circuit is used for waking up the control unit (105) and the LCD touch screen, and the LCD touch screen is used for displaying and man-machine interaction; the USB downloading circuit is used for downloading data or instructions.
7. A coal bed gas storage and transportation whole-process monitoring method adopts the coal bed gas storage and transportation whole-process monitoring system of any one of claims 1 to 6, and is characterized by comprising the following steps of:
s1, when the FPGA control circuit receives a wake-up signal of the manual wake-up circuit or a wake-up instruction sent by the remote monitoring device (003), the power supply unit (101) is powered on and started, and the FPGA control circuit controls the power supply detection circuit to perform self-detection on the power supply unit (101);
s2, when the power supply detection circuit detects that the voltage of the main power supply is lower than a first preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform three-stage early warning, meanwhile, the FPGA control circuit sends a switching control instruction to the power supply switching circuit, and the power supply switching circuit controls the switching to the standby power supply to supply power; in the process of supplying power to the standby power supply, the power supply detection circuit detects the voltage of the standby power supply in real time, when the voltage of the standby power supply is greater than a second preset threshold voltage, the FPGA control circuit controls the standby power supply to supply power to each power utilization module and each chip of the system through the power supply conditioning circuit continuously, and controls the standby power supply to charge the main power supply through the charging circuit; when the power supply detection circuit detects that the voltage of the main power supply is increased to be higher than a first preset threshold voltage or the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the power supply switching circuit to switch the main power supply for supplying power;
and S3, when the voltage of the main power supply is lower than a first preset threshold voltage and the voltage of the standby power supply is lower than a second preset threshold voltage, the FPGA control circuit controls the acousto-optic alarm circuit to perform secondary early warning.
S4, when the voltage of the main power supply is higher than a first preset threshold voltage or the voltage of the standby power supply is higher than a second preset threshold voltage, the microprocessor tests whether the communication with the remote monitoring device (003) can be established through the communication unit (107);
s4, after the communication unit (107) establishes communication with the remote monitoring device (003), the microprocessor sends self-checking instructions to the environment sensing unit (104), the acquisition device (002) and the storage unit (103), and determines respective self-checking results according to response data frames returned by the environment sensing unit, the acquisition device and the storage unit;
s5, when the microprocessor determines that the environment sensing unit (104), the acquisition device (002) and the storage unit (103) are all self-checking normally, the microprocessor control system enters a normal working mode, the internal pressure sensor, the internal temperature and humidity sensor and the internal methane concentration sensor in the acquisition device (002) respectively acquire pressure, temperature and humidity and methane concentration data inside the storage and transportation equipment to form internal coalbed methane data, the four-in-one weather station module, the gas sensor, the three-axial acceleration sensor and the GPS positioning module in the environment sensing unit (104) respectively acquire temperature, humidity, atmospheric pressure, illumination intensity, gas composition and concentration of external environment, vibration acceleration and GPS positioning data of all directions to form external environment data, and the internal coalbed methane data and the external environment data are sent to the microprocessor for data analysis and processing, writing to the memory unit (103) and transmitting to the remote monitoring device (003).
S6, when the communication between the communication unit (107) and the remote monitoring device (003) is failed to establish, and any one of the storage unit (103), the environment sensing unit (104) or the acquisition device (002) finds a fault through self-detection, the FPGA control circuit controls the sound-light alarm circuit to perform secondary early warning.
8. The method for monitoring the whole process of coal bed methane storage and transportation according to claim 7, further comprising the following steps:
s7, when the microprocessor determines that the storage and transportation equipment is in a transportation stage through data analysis and processing, and data acquired by all sensors in the acquisition device (002) and the environment sensing unit (104) meet the threshold requirement of the transportation stage, the microprocessor control system keeps a normal working mode and controls the 4G module to communicate with the remote monitoring device (003), and the FPGA control circuit controls the sensors in the acquisition device (002) and the environment sensing unit (104) to sample according to the sampling frequency set by the normal working mode;
s8, when the microprocessor determines that the storage and transportation equipment is in a storage stage through data analysis and processing, and data acquired by all sensors in the acquisition device (002) and the environment sensing unit (104) meet the threshold requirement of the storage stage, the microprocessor control system enters a low power consumption mode and controls the WiFi module to communicate with the remote monitoring device (003), the FPGA control circuit controls the sensors in the acquisition device (002) and the environment sensing unit (104) to sample according to the sampling frequency set by the low power consumption mode, and the FPGA control circuit controls the GPS positioning module, the four-in-one weather station module and the 4G module to stop working;
s9, when the microprocessor determines that the coal bed gas is not stored in the storage and transportation equipment in an idle state through data analysis and processing, and the data acquired by all the sensors in the environment sensing unit (104) are within a set threshold range, the microprocessor control system enters a sleep mode, the FPGA control circuit controls the triaxial acceleration sensor to continue working, the other sensors or modules in the acquisition device (002) and the environment sensing unit (104) stop working, and the communication unit (107) is controlled to keep receiving information to receive a wake-up instruction of the remote monitoring device (003);
s10, when the microprocessor determines that the storage and transportation equipment is in a dangerous situation through data analysis and processing, the FPGA control circuit controls the acousto-optic alarm circuit to perform primary early warning, controls the sensors in the acquisition device (002) and the environment sensing unit (104) to enter a high-speed sampling mode, enables the sensors to perform sampling at the sampling frequency set by the high-speed sampling mode, and uploads internal coal bed gas data and external environment data to the remote monitoring device (003) in real time.
9. The method for monitoring the whole process of coal bed methane storage and transportation according to claim 8, further comprising the following steps:
s11, when the system is in the sleep mode, the microprocessor control system enters the normal working mode after the FPGA control circuit receives the manual wake-up signal from the manual wake-up circuit, or the microprocessor control system enters the normal working mode after the communication unit receives the wake-up command of the remote monitoring device (003);
and S12, when the system enters a normal working mode, the FPGA control circuit activates the LCD touch screen, and the LCD touch screen displays coal bed gas data and external environment data in real time in a data form of a table and a change curve.
10. The method for monitoring the whole process of coal bed methane storage and transportation according to claim 7, further comprising the following steps:
s13, after the LCD touch screen receives the inquiry or operation management signal or the inquiry or operation management signal from the remote monitoring device (003), the microprocessor obtains the synchronous time through the clock circuit, generates the operation log and writes the operation log into the spare memory through the data read-write module;
s14, the storage unit (103) stores logistics data, internal coalbed methane data and external environment data of the whole coalbed methane transportation process, and when the logistics data, the internal coalbed methane data and the external environment data are updated each time, the updated data are sent to the remote monitoring device (003) in real time.
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