CN107480797B - LNG dispenser fault diagnosis and elimination system and operation method thereof - Google Patents
LNG dispenser fault diagnosis and elimination system and operation method thereof Download PDFInfo
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Abstract
The invention discloses a fault diagnosis and elimination system of an LNG dispenser and an operation method thereof, the system comprises an electronic controller, a circuit board is arranged on the electronic controller, a main control board, an indicator light and more than three positioning identification points are arranged on the circuit board, the main control board is also respectively connected with a display screen and an intelligent terminal, the intelligent terminal comprises an image acquisition module, an image recognition module, a database module, a diagnosis module, an input module and a query module, and the diagnosis module is respectively connected with the image acquisition module, the database module, the wireless communication module, the input module and the query module. According to the LNG dispenser fault diagnosis and removal system, an operator can complete fault removal according to the prompt of the intelligent terminal under the condition of lack of operation experience, particularly, the installation position of the LNG dispenser is remote, and when follow-up service cannot be tracked, the operator can timely conduct fault diagnosis and removal on the LNG dispenser by adopting the mode, so that the LNG dispenser can be timely recovered to be produced.
Description
Technical Field
The invention belongs to the technical field of liquefied natural gas, and particularly relates to a fault diagnosis and elimination system of an LNG dispenser and an operation method thereof.
Background
The equipment such as the LNG gas filling machine, the CNG gas filling machine, the oiling machine and the like is special equipment for providing fuel filling service for the fuel automobile and has metering and pricing functions, and meanwhile, the equipment belongs to key equipment of a gas filling station, and is generally composed of an electronic meter controller, a metering flowmeter, a control valve and auxiliary devices thereof; the equipment is generally installed outdoors, has a severe environment, is usually electrified for 24 hours and has long running time; therefore, the equipment is easy to fail, particularly the electronic meter controller belongs to electronic products, the probability of failure is high, the function of the equipment is influenced once the failure occurs, even the operation of the gas filling station is stopped, and certain economic loss is caused; therefore, the equipment has high requirements on timeliness of fault diagnosis and maintenance service of the equipment, the equipment belongs to special professional equipment, the requirements on professional skills of equipment fault diagnosis and maintenance of the equipment are high, and general fueling and gas station staff cannot normally be qualified for the work, so that after-sales service work of the equipment is usually carried out by adopting a mode of on-site after-sales service or remote telephone guidance service or a combination of the two modes. The after-sales service needs to be set in the goods supply area, and in view of the fact that the arrangement of the gas filling stations and the gas filling stations is generally scattered, especially the LNG gas filling machine is generally arranged in a remote place and even exported to abroad, the factors bring great difficulty to the setting of the after-sales service network. The service network points are more, the after-sales service radius is small, the service timeliness is high, but the total after-sales service operation cost is correspondingly improved; the service network points are few, the after-sale service radius is large, the total after-sale service operation cost is low, but the service timeliness is poor; the remote telephone service mode is usually limited by the factors such as communication voice and professional skills of on-site operators, and the accuracy and timeliness of after-sale service are greatly affected. Low quality of service after sales of equipment will affect or even limit the sales of subsequent products by the provider in that area or other areas, and export abroad is even more unlikely.
Aiming at the factors, the LNG dispenser fault diagnosis and elimination system and the operation method thereof are provided.
Disclosure of Invention
The invention aims at: aiming at the technical problems that when the existing LNG gas dispenser and CNG gas dispenser are in fault, operators are difficult to maintain equipment due to lack of knowledge and maintenance experience of the equipment, so that normal use of the equipment is affected, and the like, the LNG gas dispenser fault diagnosis and elimination system is provided, the LNG gas dispenser and the intelligent terminal are combined, 3 identification points and indicator lamps are arranged on a circuit board of the LNG gas dispenser, the images of the circuit board are acquired and processed by an image recognition module of the intelligent terminal, so that the positioning fault point is determined, and the diagnosis module of the intelligent terminal invokes a fault elimination method and steps from a database module according to the positioning fault point, so that the technical problems that the normal use of the equipment is affected due to the fact that the installation position of the equipment is far are solved.
Another object of the invention is: the on-site staff inputs the fault code and equipment number information of the LNG dispenser into the intelligent terminal, the intelligent terminal invokes the functional diagnosis module corresponding to the model, the functional diagnosis module analyzes according to the acquired image of the circuit board, positions the fault point, and invokes the corresponding fault removal method according to the positioning fault point, so that the operator can operate according to the fault removal method to complete fault removal, the whole operation process is simple in structure, and the operator can complete corresponding operation according to prompts under the condition of lack of experience.
The invention is realized by the following technical scheme: the LNG dispenser fault diagnosis and elimination system comprises an electronic controller, wherein a circuit board is arranged on the electronic controller, a main control board, an indicator light and more than 3 positioning identification points are arranged on the circuit board, the main control board is also respectively connected with a display screen and an intelligent terminal, the intelligent terminal comprises an image acquisition module, an image recognition module, a database module, a diagnosis module, an input module and a query module, and the diagnosis module is respectively connected with the image acquisition module, the database module, a wireless communication module, the input module and the query module;
the display screen is used for displaying the information of the faults of the LNG dispenser;
the input module is used for inputting fault information and LNG equipment number information displayed on the LNG dispenser into the intelligent terminal;
the query module is used for sending a command for calling the hardware version number and the software version number of the LNG dispenser of the model to the database module according to the received fault and equipment information of the LNG dispenser;
the image acquisition module is used for shooting a main control board of the LNG dispenser with faults and transmitting the image to the image recognition module;
the image recognition module is used for recognizing the category of the main control board and the shooting direction of the image according to the positioning identification points on the main control board and transmitting the recognition result to the diagnosis module;
the diagnosis module is used for analyzing the working state of the indicator lamp according to the identification result of the image identification module and confirming and positioning fault points according to the working state of the indicator lamp;
and the database module is used for receiving the instruction of the diagnosis module and calling the fault elimination method and the step according to the positioning fault point.
The intelligent terminal is an APP with a fault diagnosis and elimination function and built in the LNG dispenser. The image acquisition membrane block in the intelligent terminal shoots the LNG dispenser part, and then transmits the shot image to the image recognition module; the image recognition module performs characterization processing on the image shot by the image acquisition module, recognizes according to the identifier or the positioning identification point or the valve rod action stroke, and transmits the recognition result to the diagnosis module; the diagnosis module extracts the feature data of the gas dispenser according to the fault phenomenon, the fault code and the equipment number, executes a corresponding preset diagnosis process, calls the image of the part to be diagnosed of the image acquisition module, carries out image recognition on the image recognition module, carries out fault diagnosis, analysis and fault point positioning according to the recognition result, inquires an expert suggestion database in the database module according to the fault point, and outputs a fault processing scheme, a fault removal step and a fault removal operation method thereof. The gas dispenser characteristic data can be LNG gas dispenser characteristic data, and refer to preparation information, assembly information, functional information and the like of the LNG gas dispenser, and the LNG gas dispenser characteristic data is used when a diagnosis module performs fault diagnosis.
The specific operation flow is as follows: after the LNG dispenser fails, the LNG dispenser will have abnormal functions or faults, and the display screen will automatically display fault codes or the components of the LNG dispenser will show certain fault phenomena. The on-site operator inputs the equipment number, the fault code or the fault phenomenon to the intelligent terminal, and the diagnosis module of the intelligent terminal invokes the hardware and software version numbers and the corresponding characteristic data of the LNG dispenser corresponding to the equipment number through the query module, and then automatically invokes the corresponding diagnosis flow to execute fault diagnosis according to the software and hardware version numbers and the fault code or the fault phenomenon. If the image information of the circuit board or the valve or the flowmeter to be diagnosed is sent to the image acquisition module, the image acquisition module can be a mobile phone or a camera with an image photographing function, the photographed image is transmitted to the image recognition module, the image recognition module performs image characterization processing, the photographing direction feature processing, the type of the photographing part is recognized, and the state of the indicator lamp or the action state of the valve rod is recognized; then, comparing and analyzing the identification result of the image identification module with characteristic data of the LNG dispenser, and if the state of the indicator light is inconsistent with the state indicated by the LNG dispenser when the LNG dispenser works normally, positioning the indicator light as a fault point, or if the valve rod action state is inconsistent with the normal working state, positioning the indicator light as a valve fault point; and finally outputting a corresponding prefabricated fault solution and a fault clearing operation method and a fault clearing operation step thereof according to the positioned fault point, and performing the fault clearing operation by field operators according to the fault solution.
Preferably, three or more positioning mark points are connected into two or more intersecting straight lines. The locating identification points are preset on the circuit board, and the number of the locating identification points is more than three.
Preferably, the electronic controller is provided with more than or equal to two circuit boards. Electronic controllers are conventional devices in LNG dispensers and are well known to those skilled in the art and will not be described in detail.
Preferably, the indicator light is a light-emitting indicator light, and the light-emitting indicator light is one or more of a commercial power indicator light, a flowmeter communication indicator light and a valve control indicator light.
The types of the luminous indicator lamps in the technical scheme are set according to the functional requirements of the circuit boards, and are used for carrying out functional indication on the working state or the running flow state of the circuit boards, such as one or more than two of a commercial power indicator lamp, a DC5V/DC3.3V/DC24V voltage indicator lamp, a flowmeter power supply voltage indicator lamp, a flowmeter communication indicator lamp, a processor running fault indicator lamp and a valve control indicator lamp.
Preferably, the intelligent terminal is a mobile phone.
Preferably, the database module comprises an LNG dispenser characteristic database, an expert advice database and an LNG dispenser maintenance protection information database;
the LNG dispenser characteristic database is used for storing LNG component information and fault characteristic information and has a query function;
the expert suggestion database is used for storing the expert suggestion for processing the LNG dispenser faults and has a query function;
and the LNG dispenser maintenance protection information database is used for storing and registering maintenance and repair record information of the LNG dispenser and has a query function.
Preferably, the main control board is also connected with a power supply for supplying electric energy to the main control board. The electronic controller is also connected with a power supply for supplying electric energy to the components of the gas filling machine such as the circuit boards, the flowmeter, the electromagnetic valve and the like.
Another object of the invention is: the operation method of the LNG dispenser fault diagnosis and elimination system comprises the following operation steps:
1) Displaying fault information on a display screen of the LNG dispenser;
2) Inputting equipment number information of the LNG dispenser on the intelligent terminal;
3) The diagnosis module of the intelligent terminal obtains software and hardware version information of the LNG dispenser through the query module;
4) The diagnosis module of the intelligent terminal starts a fault diagnosis function and sends an instruction for acquiring the image of the LNG dispenser circuit board to the image acquisition module;
5) Photographing the LNG dispenser circuit board, and transmitting the image to the image recognition module;
6) The image recognition module performs comparison analysis according to the positioning marking points of the circuit board rows in the image, the working state of the indicator lights and the reference circuit board images in the database module to obtain positioning fault points;
7) The diagnosis module of the intelligent terminal invokes a fault removal method according to the positioning fault points and displays the fault removal method;
8) And (3) performing operation according to the displayed fault removal method to complete fault removal.
Preferably, the display screen of the LNG dispenser in step 1) displays fault information as a fault code.
Preferably, in the step 2), the equipment number information in the equipment number information of the LNG dispenser is input on the intelligent terminal, and the equipment number information is LNG equipment number and fault code information.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) According to the technical scheme, according to the fault code displayed on the display screen of the LNG dispenser, the input module of the intelligent terminal inputs the fault code, the hardware version number and the software version number of the LNG dispenser are called from the database module, the image acquisition module can acquire the circuit board image corresponding to the LNG dispenser according to the version number of the LNG dispenser, the circuit board image is processed by the image recognition module to obtain the working state of the indicator lamp, and the fault point is determined according to the working state of the indicator lamp.
(2) In the technical scheme, the database module is arranged, and after confirming the positioning fault point, the diagnosis module can call the solution for solving the corresponding fault point, the operation steps and the operation method thereof from the database module.
(3) According to the LNG dispenser fault diagnosis and removal system, an operator can complete fault removal according to prompt of an intelligent terminal under the condition of lack of corresponding skills, and particularly when the installation position of the LNG dispenser is remote and timely after-sales service cannot be obtained, the operator can timely remove the fault condition of the LNG dispenser and guarantee normal operation of the dispenser by adopting the mode.
(4) According to the LNG fault diagnosis and elimination system and the operation method thereof, when the LNG fault diagnosis and elimination system is in actual use, after-sales service personnel do not need to be transferred to the site, equipment site operators can directly diagnose and eliminate faults of equipment by themselves under the condition that the equipment maintenance professional skills are not possessed, equipment fault time is shortened, and the equipment is put into production in time; meanwhile, the expense of after-sales service operation is saved, and the quality of after-sales service is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic block diagram of an electronic controller according to the present invention;
FIG. 2 is a schematic diagram of a circuit board according to the present invention;
FIG. 3 is a schematic block diagram of the structure of the present invention;
FIG. 4 is a flow chart of a method of operation described in the present invention;
FIG. 5 is a schematic diagram of an electronic control board and a flowmeter according to the present invention;
wherein: 1-positioning identification points, 2-circuit boards and 3-indicator lamps.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1:
as shown in fig. 1, fig. 2 and fig. 3, the fault diagnosis and elimination system of the LNG dispenser comprises an electronic controller, wherein a circuit board 2 is arranged on the electronic controller, a main control board, an indicator lamp 3 and more than 3 positioning identification points 1 are arranged on the circuit board 2, the main control board is also respectively connected with a display screen and an intelligent terminal, the intelligent terminal comprises an image acquisition module, an image recognition module, a database module, a diagnosis module, an input module and a query module, and the diagnosis module is respectively connected with the image acquisition module, the database module, the input module and the query module; the model of the main control board adopted in the embodiment is LCNG_MC V2.0, and the adopted intelligent terminal is arranged in the LNG dispenser and has a fault diagnosis and elimination function;
the display screen is used for displaying the information of the faults of the LNG dispenser;
the input module is used for inputting fault information and LNG equipment number information displayed on the LNG dispenser into the intelligent terminal;
the query module is used for sending a command for calling the hardware version number and the software version number of the LNG dispenser of the model to the database module according to the received fault and equipment information of the LNG dispenser;
the image acquisition module is used for shooting a main control board of the LNG dispenser with faults and transmitting the image to the image recognition module;
the image recognition module is used for recognizing the category of the main control board and the shooting direction of the image according to the positioning identification points on the main control board and transmitting the recognition result to the diagnosis module;
the diagnosis module is used for analyzing the working state of the indicator lamp according to the identification result of the image identification module and confirming and positioning fault points according to the working state of the indicator lamp;
and the database module is used for receiving the instruction of the diagnosis module and calling the fault elimination method and the step according to the positioning fault point.
The main control board is also connected with a power supply.
The LNG air entrainment machine includes electronic meter accuse ware, flowmeter, technology valve in this embodiment, and wherein electronic meter accuse ware includes circuit board 2, is equipped with main control board, location identification point 1, pilot lamp 3 on the circuit board 2, and wherein, the location identification point 1 that is greater than 3 that sets up on the circuit board, intelligent terminal will confirm circuit board pilot lamp position and pilot lamp correct indication state according to the information of circuit board, presets pilot lamp 3 to the function demand on each kind of circuit board.
Wherein, the main control board in the LNG air entrainment machine is connected with intelligent terminal, then concrete working process is: when the LNG dispenser fails, the main control board displays failure information through a display screen of the LNG dispenser, specifically, the two modes are adopted, 1) a failure code is displayed, an operator prompts to input the failure code into the APP corresponding to the intelligent terminal according to the displayed failure code, and specifically, the equipment number and the failure code information of the LNG dispenser can also be input; 2) And the operator correspondingly confirms possible fault phenomena of the LNG in the intelligent terminal according to the fault conditions displayed by the LNG dispenser, and inputs equipment number information of the LNG dispenser according to the prompt in the intelligent terminal. After the diagnosis module of the intelligent terminal receives corresponding number information, the diagnosis module sends and calls the hardware version number and the software version number of the LNG dispenser equipment to the query module according to the input equipment number information of the LNG dispenser, the query module feeds corresponding information back to the diagnosis module, the diagnosis module starts to process the faults according to the acquired equipment information of the LNG dispenser, firstly, an image acquisition instruction for the LNG dispenser is sent out, a circuit board image of a corresponding model can be acquired through a mobile phone or other photographing equipment, the image acquisition module transmits the acquired image to the image recognition module, the image recognition module carries out intelligent recognition and analysis on the image of the circuit board, the type of the circuit board, the image shooting direction and the state of the indicator lamp are recognized according to the positioning identification point on the image, the diagnosis module calls a solution for the corresponding fault problem to the database module according to the positioning fault point, the fault problem is displayed through a display screen, and an operator can operate according to the solution to complete fault elimination.
The diagnostic module in this embodiment functions like a processor, wherein the processor model is Pentium Extreme Edition. The image acquisition module can be a camera mobile phone, and the specific working mode of the image recognition module is as follows: and (3) carrying out scanning contrast analysis on the image acquired by the image acquisition module and the standard image stored by the database module, such as positioning the position of the identification point and indicating the working state of the lamp, and confirming the abnormal position after comparing, thereby confirming the problem. Wherein, input module is the keyboard.
Example 2:
this embodiment differs from embodiment 1 in that: more than three positioning mark points are connected into more than or equal to two crossed straight lines. The three preset positioning identification points on the circuit board are not arranged on the same straight line. In this embodiment, the positioning mark points are set according to the principle that a plane can be determined by three non-collinear points, and the three preset positioning mark points on the circuit board 2 are not set on a straight line. According to the fact that the indication points are located in the image, the names of the corresponding circuit boards in the image can be further determined, the quantity of the preset indication lamps and the position coordinate information of the indication lamps can be queried in the LNG dispenser feature database, the information corresponding to the states of the indication lamps is compared with the image information one by one, and if the indication states of the indication lamps are inconsistent, the fault points can be further located if the fault points exist in units or parts or functions corresponding to the indication lamps.
The positioning identification points 1 in this embodiment are disposed on the circuit board 2, copper dots with high contrast with the matrix material of the circuit board are adopted, the diameter of the positioning identification points 1 is greater than 2mm, the position coordinates of the positioning identification points 1 disposed on each circuit board 2 are different, the corresponding circuit boards 2 are different, and the position information of the positioning identification points 1 is stored in the feature database of the LNG dispenser for query and call by the diagnosis module.
Example 3:
the difference between this embodiment and the above embodiment is that: the electronic controller is provided with more than or equal to two circuit boards. The number of the circuit boards arranged on the electronic meter controller is more than or equal to two, and the circuit boards control various functions of the LNG dispenser. In the working process, after the diagnostic module of the intelligent terminal acquires the software and hardware version numbers of the LNG dispenser, the image acquisition module starts to acquire images of the circuit board corresponding to the image acquisition module, so that the acquired images of the circuit board correspond to the circuit board.
The indicator lamp is a luminous indicator lamp, and the luminous indicator lamp is one or more than two of a commercial power indicator lamp, a flow metering communication indicator lamp and a valve control indicator lamp.
The image acquisition module is used for acquiring images of the circuit board, and can also be used for simultaneously acquiring the working states of the indicator lights on the circuit board, and the image recognition module can be used for comparing and analyzing the working states of the indicator lights on the images with standard images stored in the database module to confirm the distinguishing points of the working states of the indicator lights, so that possible faults are recognized.
The database module comprises an LNG dispenser manual database, an expert advice database and an LNG dispenser maintenance protection information database;
the LNG dispenser manual database is used for storing the LNG dispenser manual and has a query function;
and the expert suggestion database is used for storing the expert suggestion for processing the LNG dispenser faults and has a query function.
The database module has the same function as the memory, and stores the working image of the circuit board and the corresponding fault solution of the LNG dispenser in the standard normal working state.
Example 4:
the difference between this embodiment and the above embodiment is that: the intelligent terminal is a mobile phone. The intelligent terminal can also be other intelligent devices such as IPAD, mobile phone and the like.
Example 5:
as shown in fig. 4, an operation method of the LNG dispenser fault diagnosis and removal system includes the following operation steps:
1) Displaying fault information on a display screen of the LNG dispenser;
2) Inputting equipment number information of the LNG dispenser on the intelligent terminal;
3) The diagnosis module of the intelligent terminal obtains software and hardware version information of the LNG dispenser through the query module;
4) The diagnosis module of the intelligent terminal starts a fault diagnosis function and sends an instruction for acquiring the image of the LNG dispenser circuit board to the image acquisition module;
5) Photographing the LNG dispenser circuit board, and transmitting the image to the image recognition module;
6) The image recognition module performs comparison analysis according to the positioning marking points of the circuit board rows in the image, the working state of the indicator lights and the reference circuit board images in the database module to obtain positioning fault points;
7) The diagnosis module of the intelligent terminal invokes a fault removal method according to the positioning fault points and displays the fault removal method;
8) And (3) performing operation according to the displayed fault removal method to complete fault removal.
The method comprises the steps that in the step 1), fault information is displayed on a display screen of an LNG dispenser, fault phenomena of the LNG dispenser with faults or fault codes displayed in the LNG dispenser are input into an APP corresponding to an intelligent terminal, a specific input mode is that the fault information is displayed on the display screen of the LNG dispenser, and communication interactive connection between the LNG dispenser and the intelligent terminal is achieved in the process through a keyboard or voice input.
In the step 2), equipment number information in the equipment number information of the LNG dispenser is input on the intelligent terminal and is LNG equipment number and fault code information.
According to the operating method of the LNG dispenser, the staff of the dispenser station uses the LNG dispenser equipment and the intelligent terminal in a combined mode according to the operating method, so that conventional faults of the LNG dispenser station can be removed for inexperienced staff, normal use of the LNG dispenser is not affected, and the service cycle of the LNG dispenser is prolonged to a certain extent.
Example 6:
taking a specific embodiment as an example, the diagnosis operation of the specific fault phenomenon is as follows, and during the air filling operation, the fault information displayed on the display screen of the electronic controller is a fault code "31", and the code characterizes that the electronic controller and the flowmeter RS485 have abnormal communication.
Fault analysis, aiming at the fault phenomenon, the fault probability is as follows:
1) The flowmeter interface board has power output failure, no output or low output voltage;
2) A flowmeter interface board RS485 communication fault;
3) A flow meter failure;
4) The meter interface board fails to connect with the meter cable or connection.
Aiming at the possible situations, the on-site operators adopt the following operations to complete fault diagnosis and elimination:
1) Inputting the equipment number of the gas dispenser with the fault on the APP of the intelligent terminal, and inputting a fault code 31;
2) The intelligent terminal APP extracts feature data of the dispenser corresponding to the equipment number from the LNG dispenser feature database according to the dispenser equipment number, wherein the feature data comprises configuration/assembly information of the dispenser and feature data information of an electronic meter controller, and can also inquire hardware version numbers, software version numbers, picture information of accessories, positioning identification point feature information of circuit boards, positioning identification point feature information of the circuit boards, the number of preset indication lamps on the circuit boards, position information, indication information and fault code information of the dispenser;
3) The intelligent terminal APP performs fault diagnosis on the flow interface board and the flowmeter in sequence according to the fault code 31 displayed by the display screen and the fault equipment related information of the equipment extracted in the step 2) and a preset diagnosis flow of the fault code;
the specific diagnostic flow of the diagnostic module is as follows:
3) Firstly, an intelligent terminal display screen prompts a tool list to be equipped;
3) Prompting the operation of stopping the gas filling machine and stopping the gas filling station in a text or picture mode and safety operation measures thereof;
3) Thirdly, prompting to open the explosion-proof box cover where the flowmeter interface board is positioned and the explosion-proof box cover of the flowmeter in the form of characters and pictures;
3) 4, prompting to operate a keyboard of the electronic meter controller in a text and picture mode to call and operate a flow meter test function preset by the electronic meter controller;
3) 5, carrying out 10s video shooting on the flowmeter interface board by text prompt;
3) A main control board of the intelligent terminal starts to call and start the image acquisition module to start video shooting;
3) 7, the text prompt carries out 10s video shooting on a main control board of the flow;
3) 8, a main control board of the intelligent terminal starts an image acquisition film block and starts video shooting;
3) 9, submitting the videos shot by the 3), the 6 and the 3), the 8 to an image recognition module;
4) The image recognition module recognizes the video image, and sequentially recognizes the positioning identification point, the position of an indicator lamp (PWR/RX/TX/LED) and the indication state of the flowmeter interface board;
5) Comparing the identification result with the flowmeter interface board and the flowmeter characteristic information to confirm whether the two video shooting objects are the flowmeter interface board, the flowmeter main control board and the indicator lamp states;
the comparison result is PWR: normally bright; an LED: normally bright; TX: flashing; RX: not bright;
according to the comparison result, diagnosing as follows: 1) The power output of the flowmeter interface is normal; 2) The main control board of the flowmeter is powered normally; 3) The flowmeter interface board transmits data normally; 4) The flowmeter main control board does not receive data; 5) The flowmeter interface board does not receive the data;
6) According to the diagnosis, the suspected flowmeter interface board and the flowmeter main control board are connected or a cable fails;
7) The intelligent terminal text and picture prompts to check and refasten the A+ and B-terminals of J1 and J2;
8) Step 3) is executed again;
the comparison result is PWR: normally bright; an LED: flashing; TX: flashing; RX: flashing;
according to the comparison result, diagnosing as follows: (1) the power output of the flowmeter interface is normal; (2) the main control board of the flowmeter is powered normally; (3) the flowmeter interface board transmits data normally; (4) the main control board of the flowmeter receives normal data; (5) the flowmeter interface board receives normal data;
9) The text and picture prompts are used for performing function verification, a 'gas filling' key of a keyboard of the electronic meter controller is operated, the gas filling machine executes a gas filling process, and a '31' fault code and other faults do not appear on a display screen of the electronic meter controller;
10 The text and the picture prompt the installation of an explosion-proof box cover, and the operation steps and the safe operation measures for restoring the production of the gas filling machine and the gas filling station;
11 Writing the starting time and ending time of the fault diagnosis, the fault code, the number of the dispenser and the fault point information into an LNG dispenser maintenance protection information database;
12 The fault diagnosis and elimination ends.
In the prompting step, an operator is required to confirm the prompting.
The interface diagram of the flowmeter and the electronic control board is shown in fig. 5, and in fig. 5, the LED lamp is normally in a normally-on or flashing state during data transmission; PWR is in a normally-on state when the power supply is output; an RX lamp that is in a bright state when receiving data; the TX lamp is in a bright state when transmitting data.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The LNG dispenser fault diagnosis and elimination system comprises an electronic controller and is characterized in that a circuit board (2) is arranged on the electronic controller, a main control board, an indicator lamp (3) and more than three positioning identification points (1) are arranged on the circuit board (2), the main control board is also respectively connected with a display screen and an intelligent terminal, the intelligent terminal comprises an image acquisition module, an image identification module, a database module, a diagnosis module, an input module and a query module, and the diagnosis module is respectively connected with the image acquisition module, the database module, the wireless communication module, the input module and the query module;
the display screen is used for displaying the information of the faults of the LNG dispenser;
the input module is used for inputting fault information and LNG equipment number information displayed on the LNG dispenser into the intelligent terminal;
the query module is used for sending a command for calling the hardware version number and the software version number of the LNG dispenser of the model to the database module according to the received fault and equipment information of the LNG dispenser;
the image acquisition module is used for shooting a main control board of the LNG dispenser with faults and transmitting the image to the image recognition module;
the image recognition module is used for recognizing the category of the main control board and the shooting direction of the image according to the positioning identification point (1) on the main control board and transmitting the recognition result to the diagnosis module;
the diagnosis module is used for analyzing the working state of the indicator lamp (3) according to the identification result of the image identification module and confirming the positioning fault point according to the working state of the positioning indicator lamp (3);
and the database module is used for receiving the instruction of the diagnosis module and calling the fault elimination method and the step according to the positioning fault point.
2. The LNG dispenser troubleshooting system of claim 1, wherein: more than 3 positioning identification points (1) are connected into more than or equal to two crossed straight lines.
3. The LNG dispenser troubleshooting system of claim 1, wherein: the electronic controller is provided with more than or equal to two circuit boards (2).
4. The LNG dispenser troubleshooting system of claim 2, wherein: the indicator lamp is a luminous indicator lamp, and the luminous indicator lamp is one or more than two of a commercial power indicator lamp, a flow metering communication indicator lamp and a valve control indicator lamp.
5. The LNG dispenser troubleshooting system of claim 1, wherein: the intelligent terminal is a mobile phone.
6. The LNG dispenser troubleshooting system of claim 1, wherein: the database module comprises an LNG dispenser characteristic database, an expert advice database and an LNG dispenser maintenance protection information database;
the LNG dispenser characteristic database is used for storing LNG dispenser part information and fault characteristic information and has a query function;
the expert suggestion database is used for storing the expert suggestion for processing the LNG dispenser faults and has a query function;
and the LNG dispenser maintenance protection information database is used for storing and registering maintenance and repair record information of the LNG dispenser and has a query function.
7. The LNG dispenser troubleshooting system of claim 1, wherein: the main control board is also connected with a power supply.
8. An operation method of an LNG dispenser fault diagnosis and elimination system is characterized in that: comprises the following steps of the operation,
1) Displaying fault information on a display screen of the LNG dispenser;
2) Inputting equipment number information of the LNG dispenser on the intelligent terminal;
3) The diagnosis module of the intelligent terminal obtains software and hardware version information of the LNG dispenser through the query module;
4) The diagnosis module of the intelligent terminal starts a fault diagnosis function and sends an instruction for acquiring the image of the LNG dispenser circuit board to the image acquisition module;
5) Photographing the LNG dispenser circuit board, and transmitting the image to the image recognition module;
6) The image recognition module performs comparison analysis according to the positioning marking points of the circuit board in the image, the working state of the indicator lamp and the reference circuit board image in the database module to obtain positioning fault points;
7) The diagnosis module of the intelligent terminal invokes a fault removal method according to the positioning fault points and displays the fault removal method;
8) And (3) performing operation according to the displayed fault removal method to complete fault removal.
9. The method of operating an LNG dispenser troubleshooting system of claim 8 wherein: and the display screen of the LNG dispenser in the step 1) displays fault information as a fault code.
10. The method of operation of an LNG dispenser troubleshooting system of claim 9 wherein: and in the step 2), equipment number information in the equipment number information of the LNG dispenser is input on the intelligent terminal and is LNG equipment number and fault code information.
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| CN109410085B (en) * | 2018-11-01 | 2021-06-29 | 日立楼宇技术（广州）有限公司 | Binding system and method for farm equipment |
| CN109945922A (en) * | 2019-03-15 | 2019-06-28 | 云桥智能科技有限公司 | A kind of intelligent robot system for computer room safety control |
| CN113191326B (en) * | 2021-06-15 | 2024-07-12 | 上海势炎信息科技有限公司 | Cross-platform remote assistance method, system, electronic equipment and storage medium |
| CN115448244A (en) * | 2022-08-22 | 2022-12-09 | 中润油联天下网络科技有限公司 | Oiling machine self-diagnosis network system and intelligent oiling machine |
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