CN110763295A - Remote intelligent collector and working method thereof - Google Patents
Remote intelligent collector and working method thereof Download PDFInfo
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- CN110763295A CN110763295A CN201911085719.9A CN201911085719A CN110763295A CN 110763295 A CN110763295 A CN 110763295A CN 201911085719 A CN201911085719 A CN 201911085719A CN 110763295 A CN110763295 A CN 110763295A
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- 238000000034 method Methods 0.000 title claims abstract description 114
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- 238000013500 data storage Methods 0.000 claims abstract description 64
- 230000003993 interaction Effects 0.000 claims abstract description 36
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- 238000001514 detection method Methods 0.000 claims description 79
- 239000004973 liquid crystal related substance Substances 0.000 claims description 40
- 238000006243 chemical reaction Methods 0.000 claims description 25
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- 230000002159 abnormal effect Effects 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 16
- 230000006870 function Effects 0.000 claims description 13
- 230000008014 freezing Effects 0.000 claims description 11
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
Abstract
The invention relates to a remote intelligent collector and a working method thereof. The intelligent control system is characterized by comprising a power supply management unit, a man-machine interaction unit, a process data storage unit, a microcontroller, a remote communication management unit, an infrared communication unit, a base table communication management unit and a valve management unit, wherein the microcontroller is connected with the power supply management unit, the man-machine interaction unit, the process data storage unit, the remote communication management unit, the infrared communication unit, the base table communication management unit and the valve management unit. The super-long standby lithium battery is used as a power supply battery, data of different base tables are collected at regular time through an RS485 bus and transmitted to a remote transmission device collector of a background server through a 4G network, and more than 10 base table protocols are built in the remote transmission device collector, so that a user can switch into different integrating instrument protocols and power supply voltages through infrared or remote; the collector also has a short message setting function and is provided with an infrared communication interface.
Description
Technical Field
The invention relates to a remote intelligent collector and a working method thereof.
Background
Firstly, the most part of traditional collector adopts the commercial power supply, to the commercial power supply, the collector is from taking 220V to changing 24V plug, and the user need with the plug put on the wiring board of oneself, convenient to use, but in case the commercial power stops supplying, the collector just can't normally work. The customer can not know the gas consumption condition of the user at the background, and at this time, if some lawbreakers carry out bad behaviors such as gas stealing, the bad behaviors are obviously unavoidable. Moreover, the power supply is not connected at all at ordinary times, and the power supply is connected after maintenance personnel get on the door, so that the maintenance personnel are not clear. There are also a few collectors that adopt battery power supply in the market, they generally adopt ordinary alkaline battery power supply, this can avoid the problem that the outage brought, but because the user oneself buys the battery, can dismantle the battery at will, this leads to some users to install when using gas, pulls out the battery when not using, this still can lead to the collector can't contact with the backstage in time, and in order to buy the battery of poor quality in low price sometimes, often need change the battery at intervals of several months, user's complaint is also many.
Secondly, the collector is a collection device which needs to be connected with the integrating instrument through a bus, one type of the traditional collector can only be connected with the integrating instrument of the same type of the same manufacturer, even if the communication voltage of the integrating instrument is improved, the collector needs to be developed again by research and development personnel, so that the collector is single in adaptation, the collector is not only rigid, but also consumes manpower, and the research and development of the collector which can be adapted to various integrating instruments are very necessary.
And thirdly, most of the collectors on the market do not interfere with the condition of gas consumption of the user, and only take charge of collecting the gas consumption of the user, so that the condition that the user is charged after using the gas occurs. Of course, with the improvement of the quality of people, the probability of the event is relatively low, but the event is necessary to timely acquire the gas consumption condition of the user, judge the abnormality according to the data, remind the user to recharge in time and make corresponding valve control, and obviously. Then, the traditional collector only has a few indicator lights without screens, when the indicator lights flicker, the user may be panic, and the condition may be unclear when reporting the repair, so that the maintenance personnel expend a lot of energy to explain the explanation. Therefore, a visual screen is provided, the user can conveniently distinguish, and no matter what phenomenon occurs, the user can save a lot of troubles when knowing the condition and then reporting and repairing.
And finally, the data of the totalizer is mostly transmitted to a background server through a TCP (transmission control protocol) after being collected by the collector, and gas companies in different regions can use SIM (subscriber identity module) cards of different operators to transmit the data. The GPRS communication module adopted by the traditional collector generally only supports the SIM card of the same operator, but the signal of the operator can be poor in some regions and data uploading is often not achieved. Therefore, the card is important.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a technical scheme of a remote intelligent collector and a working method thereof.
The remote intelligent collector is characterized by comprising a power management unit, a man-machine interaction unit, a process data storage unit, a microcontroller, a remote communication management unit, an infrared communication unit, a base table communication management unit and a valve management unit, wherein the microcontroller is connected with the power management unit, the man-machine interaction unit, the process data storage unit, the remote communication management unit, the infrared communication unit, the base table communication management unit and the valve management unit, and the power management unit supplies power to the microcontroller, the man-machine interaction unit, the process data storage unit, the remote communication management unit, the infrared communication unit, the base table communication management unit and the valve management unit.
A long-range intelligent acquisition ware, its characterized in that:
the power management unit provides power for the whole collector and is the basis for the work of other modules;
the man-machine interaction unit is used for providing interaction between a user and the collector;
the flow data storage unit stores the working flow and basic parameters required by the working of each module;
the microcontroller controls the operation of the whole collector;
the remote communication management unit is responsible for interaction between the collector and the background system and transmits the basic condition of the collector to the background system;
the infrared communication unit is responsible for communicating with the infrared tool, and parameters required by the operation of the collector are set in the collector and stored in the process data storage unit by the microcontroller;
the base table communication management unit is responsible for the communication between the microcontroller and an external integrating instrument to acquire required information;
and the valve management unit is responsible for managing the opening and closing of the valve and the detection work of the valve under the control of the microcontroller.
The remote intelligent collector is characterized in that the power management unit comprises a voltage-dividing power supply module and a power detection module, the voltage-dividing power supply module can output different power supply voltages through a plurality of voltage-stabilizing module circuits, and the voltages are respectively supplied to the human-computer interaction unit, the process data storage unit, the microcontroller, the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit;
the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit are internally provided with triode on-off circuits, the disconnection and the connection of the triodes are controlled by the microcontroller, and only after the microcontroller sends a power supply signal, the triodes are switched on, and the voltage division power supply module can really supply voltage to the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit; after the units complete the work, the microcontroller sends control signals to the modules, the triode is disconnected, and the power supply of the units is stopped;
the microcontroller is connected with the power detection module in a control mode, the power detection module is a detection unit which is composed of a triode and a bleeder circuit, the triode is mainly used for switching on and off the bleeder circuit, the bleeder circuit is used for modulating the battery voltage into a voltage range which can be detected by the microcontroller, so that the microcontroller can utilize internal AD sampling to obtain a quantized value of the battery voltage after multiple reduction, power detection is carried out at regular time, the microcontroller sends a control signal to the power detection module at fixed intervals, the power detection module receives the power detection signal and then switches on the triode, after the triode is switched on, the bleeder circuit plays a role, the microcontroller detects the detection end voltage of the bleeder circuit, and the quantized value of the corresponding battery voltage is obtained through the internal AD conversion circuit.
The remote intelligent collector is characterized in that the human-computer interaction unit comprises a key processing module, a visual liquid crystal display module, a buzzer circuit module and an indicator light circuit module;
the key processing module mainly comprises keys and a realization circuit thereof, and the circuit forms a passage after a user presses the keys; after popping up, the circuit is cut off; the user can trigger an event through a key, the key of the user is divided into two types, namely a short key and a long key, if the key is pressed for more than 3 seconds, the microcontroller considers that the user triggers the long key event, otherwise, the microcontroller considers that the user triggers the short key event, and the short key can trigger two events, namely, triggering base table communication to acquire the latest accumulated gas consumption and triggering a screen to display parameter information; the long key also triggers two events, namely triggering remote transmission reporting and triggering a screen to display reporting parameter information;
the visual liquid crystal display module is composed of a liquid crystal display screen display circuit, the liquid crystal display screen adopts an industrial large screen, and the displayable contents of the liquid crystal display screen comprise a user number, standard condition accumulated flow, a valve state, a battery state, a collector state, a reporting state and countdown time;
the buzzer circuit module comprises a buzzer and an implementation circuit thereof, and the microcontroller controls the buzzer to sound temporarily when the collector is abnormal, a user presses a short key and infrared communication is successful; when the collector has abnormal reporting, long key pressing by a user and the like, the microcontroller controls the collector to sound for a long time;
the indicating lamp circuit module comprises indicating lamps and a realization circuit thereof, the colors of the two indicating lamps are yellow and green, and the turning on and off of the two indicating lamps are respectively controlled by the microcontroller; the microcontroller sends a yellow light control signal to the indicating lamp circuit module, a yellow light in the indicating lamp circuit module realizes circuit conduction of the circuit, and the yellow light is lighted when current flows through the yellow light; the microcontroller sends a yellow lamp control signal to the indicating lamp circuit module again, a yellow lamp in the indicating lamp circuit module realizes the circuit conduction and the circuit cutoff, no current flows through the yellow lamp all the time, and the yellow lamp is turned off; the green light is controlled by the microcontroller in the same way; when the base meter is in communication, the yellow lamp is lightened, when the collector operates and operates successfully, the green lamp is lightened, otherwise, the green lamp is extinguished or not lightened;
the visual liquid crystal display module is mainly used for displaying the current state of the current collector, and after the battery is undervoltage, the liquid crystal display screen displays the battery replacement and the number of 1 cell of the battery; after the battery is decompressed, the liquid crystal display screen displays the grid number of the battery and the space battery; when the battery voltage is normal, the liquid crystal display screen displays the number of the two or three battery grids; if the collector is carrying out remote communication, the liquid crystal display screen can flash and display the signal identification;
the buzzer circuit module is characterized in that whether the buzzer sounds or not and how long the buzzer sounds are controlled by the microcontroller, the buzzer is in a silent state under a normal condition, and the buzzer sounds only when the collector is abnormal or a user presses a key to trigger; when a user presses a key for a short time, the buzzer rings for a short time, and then the base table communication process is executed; when a user presses a key for a long time, the buzzer buzzes for a long time, and then the remote communication flow is started; if the gas leakage occurs when the user uses the gas or the microcontroller detects abnormal conditions such as disconnection of the integrating instrument and the base meter communication management unit, the buzzer circuit module can also buzz for reminding temporarily; after the microcontroller detects that the battery is under-voltage or the battery loses voltage, the buzzer is required to sound for reminding for a short time.
The remote intelligent collector is characterized in that the base meter communication management unit comprises a variable voltage output module and a base meter communication module, wherein the variable voltage output module is electrically connected with an external power input port of an external integrating instrument and is electrically connected with a voltage division power supply module; the base meter communication module is in communication connection with a communication port of an external integrating instrument and is electrically connected with the voltage division power supply module; the variable voltage output module consists of a triode on-off circuit and a programmable logic device, the variable voltage output module provides basic voltage by a voltage division power supply module, the microcontroller controls whether the power supply is really realized, the power supply is not realized in a normal state, and the base meter is started when in communication; meanwhile, according to the base table communication voltage stored in the process data storage unit, the microcontroller can write the voltage into the programmable logic device, so that the programmable logic device outputs the set voltage; the base meter communication module mainly comprises a triode switch circuit, the on-off of the triode switch circuit is controlled by the microcontroller, and the base meter communication module controls the use and the closing of the base meter communication module according to the protocol type of the base meter; the base meter communication module consists of 2 485 communication chips and an implementation circuit thereof, when only one 485 communication chip works, the base meter communication mode is a half-duplex communication mode, and under the half-duplex working mode, the communication can not be simultaneously transmitted and received, and only data can be transmitted when a link is idle; when both the two modules are used, the two modules are in a full duplex communication mode, and the transmission and the reception can be synchronously carried out at the moment;
the base table communication process and the base table communication parameters are stored in the process data storage unit, the base table communication parameters can be set through infrared or remote, various totalizer protocols are built in the process data storage unit, the base table protocols and the base table communication voltage are set through infrared and remote according to different totalizer models before use, and the microcontroller is directly called when the base table communication process is executed next time.
The remote intelligent collector is characterized in that the valve management unit comprises a servo motor module and a valve detection module, the servo motor module is connected with the power management unit, and the on-off of the servo motor module is controlled by the microcontroller; the servo motor module is electrically connected with an external valve, consists of a valve driving chip and a realization circuit thereof, and has the main functions of outputting fixed voltage, outputting positive voltage at a valve opening level when the valve is opened and grounding a valve closing level; when the valve is closed, the valve closing level outputs positive voltage, and the valve opening level is grounded;
the valve detection module consists of a detection circuit, the microcontroller controls the on-off of the detection circuit, when the valve is opened, the microcontroller sends a control command to a valve driving chip of the valve control module, the valve chip outputs the opening level as high voltage, and outputs the closing level as low level; the external valve starts to execute valve opening operation after the level is switched on; the microcontroller starts the valve to detect after the valve is opened for a certain time, sends a valve detection signal to the valve detection module, and the circuit of the valve detection module is communicated, if the external valve is opened completely, two detection lines of the valve detection module become a passage.
The remote intelligent collector is characterized in that the infrared communication unit mainly comprises an infrared communication circuit, an infrared transmitting tube and an infrared receiving head, the infrared transmitting tube transmits data to an infrared tool, and the infrared receiving head receives the data of the infrared tool in a radio wave mode; the microcontroller controls the start and the end, the sending and the receiving of the infrared equipment, the microcontroller keeps the infrared receiving head and the circuit thereof in a working state, and keeps the infrared transmitting tube and the circuit thereof in a closed state, and the infrared can be started to work after being activated; the infrared communication unit is used for setting parameters into the collector and storing data in the process data storage unit through the microcontroller.
The remote intelligent collector is characterized in that the remote communication management unit comprises a power supply voltage conversion module, a remote communication module and an SIM card driving module, wherein the remote communication module is connected with the microcontroller in a UART mode, the power supply voltage conversion module is connected with the power supply management unit, and the SIM card driving module is connected with the remote communication module; the power supply voltage conversion module mainly comprises a triode on-off circuit, a level conversion chip and a realization circuit thereof, wherein a voltage division power supply module of the power supply management unit provides basic voltage for the power supply management unit, and the level conversion chip can convert the basic voltage into the voltage required by the remote communication module and the SIM card driving module; the remote communication module comprises a 4G full-network communication module and a realization circuit thereof, the module is mainly used for communicating with a background system, and the communication content comprises setting parameters, reading parameters and reporting freezing records; the SIM card driving module is composed of an SIM card and a realization circuit thereof, is attached to the remote communication module and is used for driving the loaded SIM card to work and communicating with a background system; the SIM card driving module is provided with a metal buckle, so that a user can select SIM cards of different operators according to requirements.
The working method of the remote intelligent collector is characterized in that:
after the collector is provided with a battery, a partial pressure power supply module of a power supply management unit starts working to respectively supply different voltage signals to a human-computer interaction unit, a process data storage unit, a microcontroller, a remote communication management unit, an infrared communication unit, a base table communication management unit and a valve management unit, the microcontroller performs initialization operation after being powered on and acquires data and processes required by normal operation from the process data storage unit, and after a circuit is stabilized, the microcontroller acquires a main circulation process to respectively execute a power supply detection process, a key scanning processing process, a display process, a base table communication process, a valve control process, a 4G communication process and an infrared communication process; the power supply detection process is always carried out, and other processes are only executed when external or internal triggering exists.
The invention has the advantages that:
1. the collector adopts a strength lithium battery capable of continuously outputting power for power supply, the singlechip adopts an ultra-low power consumption singlechip, the singlechip is always in a low power consumption mode under a static condition, meanwhile, the singlechip can be awakened at low power consumption, the power consumption is extremely low, and the power supply for each module completely adopts an interval power supply mode, so that the power consumption is reduced;
2. the problem that the parameters in the table can be set and initialized only by inserting the card is solved, whether the parameters in the table are correct or not is checked in a mode of manually inserting the card and reading the card, and the method can be directly realized by infrared equipment; the distance between the installation point of the collector and the infrared tool point is within an effective range, and parameters can be directly set through the infrared tool, so that convenience is provided for maintenance personnel, and the danger coefficient is reduced;
3. if the program of the traditional collector has a serious problem, the program must be rewritten, because the collector is assembled into a complete machine, the complete machine of the collector must be opened for rewriting the program, and the charge meter is taken out for programming, the method not only disturbs the normal use of a user, but also needs special technical personnel to help maintenance personnel to disassemble and assemble equipment, sometimes the safety of gas utilization is considered, the complete machine is generally directly replaced, and not only manpower, material resources and resources are wasted; the short message setting remote upgrading does not need to change hardware, can be automatically carried out after reporting, and is convenient and quick;
4. if a customer needs to interfere with a gas consumption passage of a user, the valve can be remotely controlled to be opened or closed, so that the meter can be remotely controlled, and people do not need to enter the house to deal with the problem of opening or closing the valve;
5. the 4G full-network communication module is adopted, SIM cards of three operators can be supported, different operators can be selected according to regions, signal strength is better ensured, and success rate of communication is ensured;
6. dozens of integrating instrument protocols are stored in the collector, and the collector covers most of the integrating instruments in the market; the voltage of the base meter can be set, so that the requirements of different integrating instruments are greatly met, and a user can adapt to various integrating instruments only by starting and setting the protocol through remote and infrared settings and what voltage is used, so that the problem of secondary development is avoided;
7. the collector is provided with large-screen display information, a user can pay attention to the gas consumption condition of the user at any time, the conditions of insufficient balance, arrearage and the like are also reminded, the user can be prevented from getting ill in the bud when using the collector, the user can recharge in time according to the information displayed by the collector and report for repair as soon as possible, and the situation that the use is seriously influenced is avoided; meanwhile, the collector has an abnormal event reporting function, and can timely master information change if an abnormal background occurs, so that the condition of loss of connection is avoided.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a buzzer and its implementation circuit;
FIG. 3 is an indicator light and its implementation circuit;
FIG. 4 is a key and its implementation circuit;
FIG. 5 is a flow chart of collector operation;
FIG. 6 is a valve control flow diagram;
FIG. 7 is a base table communication flow diagram;
in the figure: 21-a power management unit, 211-a voltage division power supply module, 212-a power detection module, 22-a human-computer interaction unit, 221-a key processing module, 222-a visual liquid crystal display module, 223-a buzzer circuit module, 224-an indicator light circuit module, 23-a process data storage unit, 24-a microcontroller, 25-a remote communication management unit, 251-a power supply voltage conversion module, 252-a remote communication module, 253-a SIM card driving module, 26-an infrared communication unit, 27-a meter communication management unit, 271-a variable voltage output module, 272-a base meter communication module, 28-a valve management unit, 281-a servo motor module and 282-a valve detection module.
Detailed Description
The invention will be further described with reference to the accompanying drawings in which:
a remote intelligent collector comprises a power supply management unit 21, a man-machine interaction unit 22, a process data storage unit 23, a microcontroller 24, a remote communication management unit 25, an infrared communication unit 26, a base table communication management unit 27 and a valve management unit 28. The microcontroller 24 is the core of the collector, and is a main processor, and is responsible for interacting with each module, and meanwhile, the microcontroller 24 can also be used as an intermediary to enable different modules to interact with each other.
The flow data storage unit 23 is important as the microcontroller 24, and stores parameters and data required by the operation of each module, and cooperates with the microcontroller 24 to complete the operation content of each module. The flow data storage unit 23 stores protocol information of base table communication and base table freezing interval information; the information such as communication IP, port number, etc. of remote communication stores the information such as reporting time, interval reporting, etc.; the actual value of the display information is stored. The stored data and parameters that any module needs to acquire are placed in the flow data storage unit 23. It is read by microcontroller 24 when it needs to be acquired, and data is stored by microcontroller 24 when it needs to be set.
The power management unit 21 is electrically connected to the microcontroller 24, and the power management unit 21 is electrically connected to other units. The remote communication management unit 25 is in communication connection with the microcontroller 24, the infrared communication unit 26 is in communication connection with the microcontroller 24, the base meter communication management unit 27 is in communication connection with the microcontroller 24, and the valve driving module 28 is in control connection with the microcontroller 24. The man-machine interaction unit 22 is in control connection with a microcontroller 24.
The power management unit 21 provides power for the whole collector, and is the basis for the work of other modules. The man-machine interaction unit 22 is used for providing the interaction of the user and the collector. The flow data storage unit 23 stores some flows and basic parameters required for the operation of each module. The microcontroller 24 controls the operation of the entire harvester and is the central system of the harvester. The remote communication management unit 25 is responsible for interaction between the collector and the background system, and transmits the basic situation of the collector to the background system. The infrared communication unit 26 is responsible for communication with the infrared tool, and parameters required by the operation of the collector are set in the collector and stored in the process data storage unit 23 by the microcontroller 24. The base table communication management unit 27 is responsible for the microcontroller 24 to communicate with an external integrating meter to acquire required information. The valve management unit 28 is responsible for managing the opening and closing of the valves, as well as the detection of the valve, under the control of the microcontroller 24.
The power management unit 21 includes a voltage division power supply module 211 and a power detection module 212. The voltage division power supply module 211 can output different power supply voltages through a plurality of voltage stabilization module circuits, and the voltages are respectively supplied to the human-computer interaction unit 22, the process data storage unit 23, the microcontroller 24, the remote communication management unit 25, the infrared communication unit 26, the base meter communication management unit 27 and the valve management unit 28. The voltage division power supply module 211 is directly electrically connected with the human-computer interaction unit 22, the process data storage unit 23 and the microcontroller 24, and is electrically connected with the remote communication management unit 25, the infrared communication unit 26, the base meter communication management unit 27 and the valve management unit 28, but the microcontroller 24 is required to control the actual electric conduction.
The remote communication management unit 25, the infrared communication unit 26, the base meter communication management unit 27 and the valve management unit 28 are internally provided with a triode on-off circuit, the disconnection and connection of the triode are controlled by the microcontroller 24, and only after the microcontroller 24 sends a power supply signal, the triode is switched on, and the voltage division power supply module 211 can really supply voltage to the remote communication management unit 25, the infrared communication unit 26, the base meter communication management unit 27 and the valve management unit 28. When the units are finished, the microcontroller 24 sends control signals to the modules, the triode is disconnected, and the power supply of each unit is stopped, so that the controllable power supply and disconnection reduce the power consumption to a certain extent.
The microcontroller 24 is in control connection with the power detection module 212. The power detection module 212 is a detection unit composed of some transistors and a voltage division circuit. The triode is mainly used for switching on and off of the voltage division circuit, the voltage division circuit is used for modulating the battery voltage to a voltage range which can be detected by the microcontroller 24, and therefore the microcontroller 24 can obtain a quantized value of the battery voltage after the multiple reduction by utilizing internal AD sampling. The power detection is performed at regular time intervals, the microcontroller 24 sends a control signal to the power detection module 212 at regular time intervals, the power detection module 212 receives the power detection signal and then switches on the triode, and the voltage division circuit is activated after the triode is switched on. The microcontroller 24 detects the detection terminal voltage of the voltage dividing circuit, and acquires a quantized value corresponding to the battery voltage through the internal AD conversion circuit. This value is not the actual value of the battery terminal voltage, but may represent the battery voltage value.
The microcontroller 24 obtains battery voltage comparison data from the process data storage unit 23, where the data includes a battery charge sufficient voltage determination point (hereinafter referred to as a battery sufficient point), a battery under-voltage minimum voltage determination point (hereinafter referred to as a battery under-voltage point), and a battery under-voltage minimum determination point (hereinafter referred to as a battery under-voltage point). If the quantized value is detected to be lower than the battery under-voltage point and higher than the battery voltage loss point, the micro-controller 24 will send a control signal to the visual lcd module 222 and the buzzer circuit module 223 of the human-computer interaction unit 22. The visual liquid crystal display module 222 displays the character of "battery change" and the battery only has one electric mark left on the liquid crystal screen, and the buzzer in the buzzer circuit module 223 sounds to remind the user of changing the new battery in time. If the detected quantized value is lower than the battery voltage loss point, the microcontroller 24 simultaneously sends a control signal to the human-computer interaction unit 22, so that the visual liquid crystal display module 222 displays the character of "battery change" and the space mark of the battery box on the liquid crystal display screen, and simultaneously, the buzzer in the buzzer circuit module 223 sounds a sound. Meanwhile, in order to avoid the battery depletion, the microcontroller 24 sends control signals to the remote communication management unit 25, the base meter communication management unit 27 and the valve management unit 28, so that the respective communication processes are ended as soon as possible, the valve closing process is executed, and after the operation of each module is finished, the power supply is closed, so that the operation stability inside the collector is maintained, and a maintenance worker is waited to replace the battery.
The man-machine interaction unit 22 comprises a key processing module 221, a visual liquid crystal display module 222, a buzzer circuit module 223 and an indicator light circuit module 224. The modules of the human-computer interaction unit 22 are respectively connected with the microcontroller 24 in a control mode.
The key processing module 221 mainly includes keys and its implementation circuit, as shown in fig. 4. After the user presses the key, the circuit forms a path. After ejection, the circuit is turned off. The time interval between pressing and popping by the user can be controlled. The user can trigger an event through keys, the keys of the user are divided into two types, namely a short key and a long key, if the key pressing time of the user lasts for more than 3 seconds, the microcontroller 24 considers that the user triggers the long key event, otherwise, the microcontroller 24 considers that the user triggers the short key event, and the short key can trigger two events, namely triggering base table communication to obtain the latest accumulated gas consumption and triggering a screen to display parameter information. The long key also triggers two events, namely triggering remote transmission reporting and triggering a screen to display reporting parameter information.
The visual liquid crystal display module 222 is composed of a liquid crystal display screen display circuit, the liquid crystal display screen is an industrial large screen, and the content which can be displayed by the liquid crystal display screen in a static state comprises information such as a user number, standard condition accumulated flow, a valve state, a battery state, a collector state, a reporting state, counting down time and the like. The valve state has two display states of 'open valve' and 'close valve'. The battery state comprises a battery changing word and a battery grid number, and the collector state mainly comprises information such as 'overflow amount', 'please charge up', 'broken line' and the like. The reported state is 'signal mark', and the collector can flash 'signal mark' when reporting. In the screen turning caused by the short keys and the long keys, the meter can sequentially display parameters which need to be observed by a user or a maintenance worker, wherein the short keys mainly display data needed by the user and comprise information such as accumulation, standard conditions and temperature, and the long keys mainly display parameters which need to be observed by the maintenance worker and are needed for reporting, and comprise information such as IP, ports and timed reporting time.
The buzzer circuit module 223 includes a buzzer and its implementation circuit, which is shown in fig. 2. In the figure, B1 is a buzzer, and Q13 is a triode, and can be operated in an off state or a saturation state by a level. The buzzer can sound when being conducted. The microcontroller 24 sends a control signal to the buzzer circuit module 223, a triode Q13 in the buzzer circuit module 223 is conducted and in a saturated state, VEE voltage and ground form a path, and the buzzer sounds when current flows through the buzzer. After the microcontroller 24 sends a control signal to the transistor Q13 of the buzzer circuit module 223 again, the transistor is in a cut-off state, the circuit cannot form a path, and the buzzer stops sounding. The long and short beeps of the buzzer are determined by the interval between two control signals of the microcontroller 24, which is longer, and we call long beeps, otherwise called short beeps. When the collector is abnormal, the user has short keys, the infrared communication is successful and the like, the microcontroller 24 generally makes the collector temporarily sound; when the collector reports abnormally, the user presses a key for a long time, and the like, the microcontroller 24 generally makes the collector sound for a long time.
The indicator light circuit module 224 includes 2 indicator lights and its implementation circuit, and the implementation circuit is shown in fig. 3. The color of the two indicator lights is yellow-green, and the turning on and off of the two indicator lights are respectively controlled by the microcontroller 24. Microcontroller 24 sends yellow light control signal to pilot lamp circuit module 224, and the circuit of yellow lamp realization circuit is switched on in pilot lamp circuit module 224, and yellow lamp has the electric current to flow through, and yellow lamp lights. The microcontroller 24 sends a yellow light control signal to the indicator light circuit module 224 again, the yellow light in the indicator light circuit module 224 realizes the circuit conduction and the circuit cutoff, no current flows through the yellow light all the time, and the yellow light is turned off. The green light is controlled in the same manner by microcontroller 24. Microcontroller 24 sends green lamp control signal to pilot lamp circuit module 224, and the circuit of green lamp realization circuit switches on in pilot lamp circuit module 224, and the green lamp has the electric current to flow, and the green lamp lights. Microcontroller 24 sends the green light control signal again to pilot lamp circuit module 224, and the green lamp realizes that the circuit switches on and cuts off in pilot lamp circuit module 224, and the green lamp does not have the electric current to flow all the time, and the green lamp extinguishes. When the base meter communicates, the yellow light is lighted. And when the collector operates and the operation is successful, the green lamp is lightened, otherwise, the collector is extinguished or not lightened.
The user can input control information to the microcontroller 24 through the key processing module 221, the control information including: short key, long key. The microcontroller 24 receives the control information and retrieves corresponding process information from the process data storage unit 23. When the key is pressed for a short time, the microcontroller 24 sends control signals to the visual liquid crystal display module 222, the base table communication management unit 27, and the indicator lamp circuit module 224, so that the display process, the base table communication process, and the indicator lamp lighting operation are respectively executed. When the key is pressed for a long time, the microcontroller 24 sends control signals to the visual liquid crystal display module 222, the remote communication management unit 27, the indicator lamp circuit module 224 and the buzzer circuit module 223 respectively to enable the display module to execute operations such as a display process, a GPRS communication process, an indicator lamp lighting operation and a buzzer sounding operation.
The visual lcd module 222 is mainly used for displaying the current status of the current collector. After the battery is under-voltage, the liquid crystal display screen displays 'battery replacement' and '1 grid battery grid number'. After the battery is in voltage loss, the liquid crystal display screen displays the battery replacement and the space battery grid number. When the battery voltage is normal, the liquid crystal display screen displays the number of the two or three battery grids. If the collector is carrying out remote communication, then liquid crystal display can flash "signal identification".
A long-range intelligent collection ware its characterized in that: two indicator lights of the indicator light circuit module 224, a yellow indicator light is turned on to indicate that the collector is executing the base table communication process, and turning off indicates that the base table communication process is finished, a green indicator light is turned on to indicate that the collector has a communication process completed and a communication result is successful, and a green indicator light is turned off or is not turned on to indicate that the collector has a communication process finished and a result is a failure or no communication event occurs. The function of the indicator light is used for providing fault prompt indication for maintenance personnel on one hand and is convenient for users to check repair.
The buzzer circuit module 223 is controlled by the microcontroller 24 whether it buzzes or not and for how long. The buzzer is in a silent state under normal conditions, and the buzzer can sound only when the collector is abnormal or the user presses a key to trigger. When a user presses a key for a short time, the buzzer rings for a short time, and then the base table communication process is executed. When the user presses the key for a long time, the buzzer buzzes for a long time, and then the remote communication flow is started. If the user leaks gas during gas consumption or the micro-controller 24 detects abnormal conditions such as disconnection between the integrating meter and the base meter communication management unit 27, the buzzer circuit module 223 will sound for a short time. After the microcontroller 24 detects that the battery is under-voltage or the battery is under-voltage, the buzzer is also required to sound for reminding for a short time.
The base table communication management unit 27 includes a variable voltage output module 271 and a base table communication module 272. The variable voltage output module 271 is electrically connected to an external power input port of the external integrator and is electrically connected to the voltage-dividing power supply module 211. The base meter communication module 272 is in communication connection with a communication port of an external integrating instrument and is electrically connected with the voltage division power supply module 211. The variable voltage output module 271 is in control connection with the microcontroller 24 and is also in communication connection with the microcontroller 24, and the base meter communication module 272 is in communication connection with and is in control connection with the microcontroller 24.
The variable voltage output module 271 is composed of a triode on-off circuit and a programmable logic device. The variable voltage output module 271 is provided with a basic voltage by the voltage division power supply module 211, the microcontroller 24 controls whether the power supply is really realized, the power supply is not supplied in a normal state, and the power supply is started when the base meter is communicated, so that the electric quantity is saved to a certain extent. Meanwhile, according to the base table communication voltage stored in the process data storage unit 23, the microcontroller 24 may write the voltage into the programmable logic device, so that the programmable logic device outputs the set voltage. The base meter communication module 272 is mainly composed of a triode switch circuit, and the on-off of the triode switch circuit is controlled by the microcontroller 24. The base table communication module 272 controls the use and shut down of the base table communication module 272 according to the base table protocol type. The base table communication module 272 consists of 2 485 communication chips and an implementation circuit thereof. When only one 485 communication chip works, the base table communication mode is a half-duplex communication mode, and under the half-duplex working mode, the communication can not be transmitted and received simultaneously, and data can be transmitted only when a link is idle. When both blocks are used, the full duplex communication mode is adopted, and the transmission and the reception can be synchronously carried out. At present, an external integrating instrument mainly adopts two modes of half-duplex communication and full-duplex communication.
The base table communication flow and the base table communication parameters are stored in the flow data storage unit 23, and the base table communication parameters can be set by infrared or remote. The flow data storage unit 23 is internally provided with more than ten totalizer protocols, which covers most of the totalizers in the market. Aiming at different types of integrating instruments, the base meter protocol and the base meter communication voltage are set well only through infrared and remote before use. The next time the base table communication process is executed, microcontroller 24 calls it directly. The triggering mode of the base table communication flow is various, and the base table communication flow can be triggered by external triggering or internal clock signals. The external trigger refers to key operation of a user, and the internal clock signal refers to the interval freezing signal. When one of the signals exists, the microcontroller 24 acquires the signal, and then acquires the base meter communication flow and the voltage and protocol information of the type of integrating instrument from the flow data storage unit 23, the base voltage of the variable voltage output module 271 is provided by the voltage division power supply module 211 of the power management unit 21, and when the microcontroller 24 executes the base meter communication flow, the microcontroller 24 sends a control signal to the variable voltage output module 271, the triode circuit is conducted, and the base meter communication power supply is turned on. After the variable voltage output module 271 is connected with the basic voltage provided by the voltage division power supply module 211, the microcontroller 24 sends the communication voltage information of the basic meter to the programmable logic unit of the variable voltage output module 271, and the programmable logic unit outputs the power supply voltage of the integrator after being written with the voltage data. The integrating instrument needs to be powered on for a certain time and then can be in a communication mode, at this time, the microcontroller 24 sends a base table data reading command to the base table communication module 272 according to the protocol type in the base table protocol parameters, and the base table communication module 272 converts the serial port data into an RS485 differential signal and transmits the RS485 differential signal to the integrating instrument. If the external totalizer is in the half-duplex mode, after the microcontroller 24 finishes sending data, it sends a control signal to the base table communication module 272 again to switch the mode from the sending mode to the receiving mode, and waits for the data returned by the totalizer. If the external totalizer is in full duplex mode, another 485 chips of the base table communication module 272 waits for receiving the reply data of the totalizer. After the data reception is completed or the reception is overtime, the microcontroller 24 sends a control signal to the base meter communication module 272 and the variable voltage output module 271 to terminate the communication, and cuts off the power supply.
The valve management unit 28 mainly includes a servo motor module 281 and a valve detection module 282. The servo motor module 281 is electrically connected to the power management unit 21, and is controlled to be turned on or off by the microcontroller 24. The servo motor module 281 is electrically connected with an external valve. The servo motor module 281 is composed of a valve driving chip and a realization circuit thereof, the main function of the servo motor module 281 is to output fixed voltage, when the valve is opened, the valve opening level is output to be high level, and the valve closing level is set to be low level; when the valve is closed, the valve closing level is set to a high level, and the valve opening level is set to a low level.
The valve detection module 282 is composed of a detection circuit, and the microcontroller 24 controls the on-off of the detection circuit. When the valve is opened, the microcontroller 24 sends a control command to the valve driver chip of the valve control module 283, and the valve driver chip outputs a valve-opening level as a high voltage and outputs a valve-closing level as a low level. The external valve starts to perform valve opening operation after the level is switched on. The microcontroller 24 starts the valve detection after the valve has been opened for a certain time. The microcontroller 24 sends a valve detection signal to the valve detection module 282, and the circuit of the valve detection module 282 is connected, so that if the external valve is opened, two detection lines of the valve detection module become a passage. Normally, the communication line between the valve detection module 282 and the microcontroller 24 is at a high level, but when the valve is fully opened, the communication line is conducted to ground and becomes a low level, and the microcontroller 24 detects the next low level and determines that the valve opening is completed. The microcontroller 24 sends a control signal to the servo motor module 281 to cut off the power supply and the valve opening process is finished. Similarly, when the valve is closed, the two detection lines of the external valve are in a disconnected state under the condition that the valve is closed, and if the microcontroller 24 detects the high level, the valve is considered to be in a closed state.
The microcontroller 24 monitors the valve state in real time, if the current state of the collector is an open valve state, but the valve in-place switch is still in an open circuit state or the current state of the valve is a closed valve state, but the valve in-place switch is in a closed state, under the two conditions, the microcontroller 24 considers that the valve is bad and sends control information to the visual liquid crystal display module 222 to display an abnormal state to prompt the valve fault.
The infrared communication unit 26 mainly comprises an infrared communication circuit, an infrared transmitting tube and an infrared receiving head. The infrared transmitting tube transmits data to the infrared tool, and the infrared receiving head receives the data of the infrared tool in a radio wave mode. The microcontroller 24 controls the turning on and off, transmission and reception of the infrared devices. The microcontroller 24 keeps the infrared receiver and its circuit in working state, and keeps the infrared transmitter and its circuit in off state, and the infrared can be activated to start working. The infrared communication unit 26 is used for setting some parameters into the collector and storing data in the process data storage unit 23 through the microcontroller 24.
The remote communication management unit 25 includes a power supply voltage conversion module 251, a remote communication module 252, and a SIM card driver module 253. The remote communication module 252 is connected to the microcontroller 24 in a communication manner through a UART, the power supply voltage conversion module 251 is electrically connected to the power management unit 21, and the SIM card driver module 253 is electrically connected to the remote communication module 252. The power supply voltage conversion module 251 mainly includes a triode on/off circuit, a level conversion chip and a realization circuit thereof, the voltage division power supply module 211 of the power management unit 21 provides a base voltage for the triode on/off circuit, and the level conversion chip can convert the base voltage into a voltage required by the remote communication module 252 and the SIM card driver module 253. The remote communication module 252 includes a 4G full network communication module and a circuit for implementing the same, the module is mainly used for communicating with a background system, and communication contents include setting parameters, reading parameters, reporting freezing records and the like. The SIM card driver 253 is composed of a SIM card and a circuit for implementing the SIM card, and the SIM card driver 253 is attached to the remote communication module 252, and functions to drive the loaded SIM card to operate, and can communicate with a background system. The SIM card driver 253 has metal buckles, so that the user can select SIM cards of different operators according to the requirements.
This patent is further described with reference to a typical collector implementation.
The collector is the power supply, and after the battery is installed, the voltage division power supply module 211 of the power management unit 21 starts to operate to supply different voltage signals to each module. After the microcontroller 24 is powered on, some initialization operations are performed to obtain data and processes required for normal operation from the process data storage unit 23. After the circuit is stabilized, the microcontroller 24 acquires the main cycle flow to respectively execute the power supply detection flow, the key scanning processing flow, the display flow, the base table communication flow, the valve control flow, the 4G communication flow and the infrared communication flow. The power supply detection process is carried out all the time, and other processes are only executed when external or internal triggering exists. The power supply detection process is in progress constantly, the power supply detection process is always in a working state, so that errors in collector processing caused by power failure of a power supply are avoided, and meanwhile, the valve is closed before the power supply is exhausted, so that accidents are prevented.
The user external trigger mechanism comprises two modes of key triggering and infrared tool triggering, and the internal trigger mechanism comprises hour signal triggering, day signal triggering, minute signal triggering and collector abnormal triggering. The key triggering mechanism comprises short key triggering and long key triggering. After the collector is powered on, a user firstly starts infrared triggering, parameters are stored in the process data storage unit 23, only after the parameters are set, the base table communication process, the remote communication process and the like can be normally carried out, otherwise, the collector can execute operation in a pile of invalid data, and the collector is meaningless.
And the short key triggers a screen-turning display flow and a base table communication flow. The microcontroller 24 monitors the level of the key processing module 221 in real time, and the voltage dividing power supply module 211 is electrically connected with the key processing module 221, but is actually turned on only after the key is pressed down. After the user presses the key, the microcontroller 24 starts timing after detecting the level change, and when the user releases the key, the determination is made according to the short key parameters stored in the flow data storage unit 23, and if the microcontroller 24 determines that the operation is the short key. At this time, the microcontroller 24 starts a screen-turning display process, obtains a numerical value from the process data storage unit 23, and sends the numerical value to the visual liquid crystal display module 222 to display parameters required by the user, data such as accumulated data, residual data in the table, current temperature and the like. While microcontroller 24 initiates the base meter communication process. The base table communication flow is the process in which the micro-controller 24 of the collector retrieves the latest base number of the base table from the external integrator.
And triggering a screen-turning display flow and a collector remote communication flow when the key is pressed for a long time. Similar to the short key, the micro-controller 24 compares the counted time number with the long key counting parameter in the process data storage unit 23, and if the counted time number is greater than the stored parameter, the user is determined to trigger the long key. When the key is pressed for a long time, the microcontroller 24 starts a display process and a remote communication process. The microcontroller 24 acquires the telecommunication parameters to be displayed from the process data storage unit 23 and sends the telecommunication parameters to the visual liquid crystal display module 222. The visual lcd module 222 is driven by the microcontroller 24 to illuminate the data fields to be displayed. The long key also starts a remote communication process, the remote communication process is to start the connection between the collector and an external background and feed data back to the background, and certainly, the most important function of the long key trigger is to issue a background command to the collector.
The internal clock signal can trigger the base table communication flow and the remote communication flow, when the freezing parameter of the collector is set to be minute freezing or hour freezing or day freezing, the base table communication flow is started after the clock signal arrives, and the collector acquires the latest base table number, deducts fees and stores data in time. When the set collector timing report parameter is just corresponding to the moment, the remote communication is started. When the meter has the abnormalities of leakage, disconnection, low battery voltage and the like, the collector can be triggered to report. Taking the battery voltage as an example, when the microcontroller 24 detects that the battery voltage is lower than the under-voltage point, the microcontroller 24 also starts the abnormal report, and uploads the abnormal information to the background to inform maintenance personnel to replace the battery in time, thereby avoiding the occurrence of the situation that the collector is disconnected.
The infrared tool triggers an infrared communication process, and the infrared communication mainly comprises initialization and setting work of some parameters after the collector is powered on. Of course, after the collector operates normally, a series of settings change can be performed. When a new collector is powered on, the internal parameters of the collector are blank, and at this time, the contents of the base table communication parameters, the remote communication parameters, and the like need to be set through infrared and stored in the flow data storage unit 23. After the infrared tool is opened, an activation command on the tool is clicked, and the tool can send an activation command data string. Because the receiving tube of the infrared communication management unit 26 is always in a working state, the infrared communication management unit 26 sends the received data back to the microcontroller 24, the microcontroller 24 compares the received activation data string with the storage parameter in the process data storage unit 23, and if the comparison result is successful, a control instruction is sent to the infrared communication management unit 26 to enable the infrared transmission function to be started. The infrared tool may then issue an infrared command to interact with the infrared communication management unit 26. And stores and reads data from the flow data storage unit 23 through the microcontroller 24. If the microcontroller 24 detects that the infrared communication management unit 26 has no data interaction within a certain time, the microcontroller 24 sends a control instruction to the infrared communication management unit 26, so that the infrared communication management unit 26 closes the sending port, closes the communication with an external infrared tool, and saves electric quantity.
The loop process starts with a charge detection process. In the power detection process, the power detection module 212 is turned on, and the microcontroller 24 monitors the power detection signal in real time. The microcontroller 24 obtains battery voltage comparison data from the process data storage unit 23, where the data includes a battery charge sufficient voltage determination point (hereinafter referred to as a battery sufficient point), a battery under-voltage minimum voltage determination point (hereinafter referred to as a battery under-voltage point), and a battery under-voltage minimum determination point (hereinafter referred to as a battery under-voltage point). If the quantization value is lower than the battery under-voltage point and higher than the battery voltage loss point, the microcontroller 24 displays a battery replacement character and a battery box blank mark in a subsequent screen-turning display process, and if the quantization value is lower than the battery voltage loss point, the battery replacement character and the battery box blank mark are displayed. At the same time, microcontroller 24 will store the battery charge for the following procedures.
After the user presses the key, the key scanning process is started. It is stated above that the user keys are divided into two types, one is a short key and the other is a long key, if the user presses the keys for more than 3S, the microcontroller 24 considers that the user triggers the long key event, otherwise, the microcontroller 24 considers that the user triggers the short key event, and the short key can trigger two events, one is triggering the base table communication to obtain the latest accumulated gas consumption, and the other is triggering the screen to display the parameter information. The long key also triggers two events, namely triggering remote transmission reporting and triggering a screen to display reporting parameter information. The short keys and the long keys can clear abnormal states, and if no abnormal state exists, the microcontroller 24 can store clearing information and triggering events, so that subsequent process judgment and use are facilitated.
And then the collector executes a screen turning display process. According to the key information of the user, turning screen display can be started, if the user is a short key, a short key turning screen process is started, and then the visual liquid crystal display screen can display base meter data information such as 'accumulation use', 'standard condition accumulated flow' and the like. If the user opens the long key, remote reporting information such as 'IP', 'port' and the like can be displayed. According to the battery electric quantity information, the current electric quantity information can be displayed by the screen turning display content. The collector is under-voltage and displays 'battery replacement' and 'one battery grid', and the collector is under-voltage and displays 'battery replacement' and 'battery grid'.
If the user carries out short key pressing, the base table data freezing process is triggered after the process is displayed by turning the screen. The base table data freezing process comprises two processes of base table power-on and base table communication. The power voltage of the base meter and the communication data flow of the base meter are determined according to the set voltage and protocol of the base meter. When the base table communication process is triggered, the microcontroller 24 first obtains the voltage and protocol type required for communication from the process data storage unit 23. Microcontroller 24 then communicates with the base meter communication module based on the protocol type and voltage. Firstly, after the communication flow of the base table is started, the power is supplied to the integrating instrument. Next, the microcontroller 24 sends the communication voltage parameter to the programmable logic chip of the variable voltage output module 271, and the programmable logic device outputs the specified voltage according to the basic voltage and the voltage parameter provided by the microcontroller 24, so that the integrating instrument realizes real power-on. After the base table is electrified for a period of time, the next step is to start the base table communication. The microcontroller 24 determines whether the base table is in the half-duplex mode or the full-duplex mode according to the protocol type and communicates data accordingly. After the data communication is finished, the microcontroller 24 stores the data in the flow data storage unit 23, and the microcontroller 24 controls to close the communication function. At the same time, the microprocessor 24 turns off the power supply of the integrating meter, and the communication flow of the base meter is completely finished.
After the base table communication process is finished, if the infrared tool is started, an activation command on the tool is clicked, and the tool can send an activation command data string. Because the receiving tube of the infrared communication management unit 26 is always in a working state, the infrared communication management unit 26 sends the received data back to the microcontroller 24, the microcontroller 24 compares the received activation data string with the storage parameter in the process data storage unit 23, and if the comparison result is successful, the infrared processing process is started. The infrared tool may then issue an infrared command to interact with the infrared communication management unit 26. And stores and reads data from the flow data storage unit 23 through the microcontroller 24. If the microcontroller 24 detects that the infrared communication management unit 26 has no data interaction within a certain time, the microcontroller 24 sends a control instruction to the infrared communication management unit 26 to close the sending port and close the communication with the external infrared tool, and the microcontroller 24 stores the data in the process data storage unit 23. And finishing the infrared communication flow.
After the user presses a key or triggers an internal signal to trigger the remote communication process, the microcontroller 24 sends a control command to the power supply voltage conversion module 251, so that the power supply voltage conversion module 251 is actually connected to the voltage division power supply module 211. The supply voltage conversion module 251 starts to operate and provides the remote communication module 252 with an operating voltage. After the remote communication module 252 is powered on, the microcontroller 24 sends a control signal to the remote communication module 252 to reset the remote communication module, and starts the operation mode after waiting for a certain time. Microcontroller 24 instructs telecommunications module 252 to test and determine whether it is operational. Meanwhile, the remote communication module 252 also sends a control command to the SIM card driver module 253 to enable the SIM card driver module 253 to be in a reset state, and after the SIM card is reset, the remote communication module 252 sends a command for reading the unique identifier of the SIM card to the SIM card driver module 253 to read information such as the ICCID, the IMSI and the like of the SIM card. The remote communication module 252 compares the read results to determine that the SIM card is a mobile, a universal, or a telecommunication SIM card among three operators. After the confirmation is completed, the remote communication module 252 quickly loads the network parameters of the operator and starts the network access operation. After the remote communication module 252 accesses the network, it connects to the background system according to the information such as IP and port number stored in the process data storage unit 23, and at this time, the microcontroller 24 sends a handshake instruction to the background to confirm the correctness of the connection. After the correct connection is confirmed, data communication can be carried out between the collector and the background system. In general, after the instruction interaction is completed, the background system sends a command to close the communication to the collector, and the micro controller 24 of the collector sends a control signal to the remote communication management unit 25 to cut off the power supply. And after the power supply is turned off, the remote communication process is ended.
The valve control flow path comprises three items of valve opening, valve closing and valve detection. The microcontroller 24 acquires a valve opening signal or a valve closing signal from the flow data storage unit 23. When the valve is opened, the microcontroller 24 sends a valve opening control signal to the valve driving chip of the servo motor module 281 again, and the valve driving chip is set to the valve opening mode, and sets the valve opening line level to the high level and the valve closing line level to the low level. Due to the direct electrical connection between the external valve and the valve chip, the external valve will perform a valve opening operation under voltage control, and after a period of valve opening, the microcontroller 24 will start to detect the valve opening and closing condition. If the external valve is opened completely, the microcontroller 24 also detects a valve opening completion signal, and the valve opening is considered to be stopped. The power supply is stopped and the valve is opened. When the valve of the collector needs to be closed, the microcontroller 24 sets the level of the valve closing line to be high level, and the level of the valve opening line to be low level, at this time, the external valve starts to close under the voltage control, because the valve closing time is short, generally after the valve closing time is up, the microcontroller 24 starts to detect the state of the valve, if the microcontroller 24 detects that the valve is closed, the power supply stops, and the valve closing process is ended. The signals for opening and closing the valve are transmitted step by the above process, for example, if there is a battery pressure loss signal, the process executes the valve closing process, and if the user makes a short key and the meter has no abnormality, the process executes the valve opening process.
In the next loop, the collector continues to execute the program according to the flow loop.
Example one: base table communication process
The base table communication process comprises two processes of base table power-on and base table communication. The power voltage of the base meter and the communication data flow of the base meter are determined according to the set voltage and protocol of the base meter. When the base table communication process is triggered, the microcontroller 24 first obtains the voltage and protocol type required for communication from the process data storage unit 23. The voltage and the protocol type may be set by infrared or remotely, and the setting range must be within all the protocol ranges stored in the flow data storage unit 23. At present, the protocol content is more than ten, and a user can select a corresponding protocol type according to the type of an integrating instrument in reality. Microcontroller 24 then communicates with the base meter communication module based on the protocol type and voltage. Firstly, after the communication flow of the base table is started, the power is supplied to the integrating instrument. The microcontroller 24 firstly sends a control signal to the indicator light circuit module 224 to turn on the yellow light, and then sends a control signal to the variable voltage output module 271 to conduct the triode communication circuit, so that the divided voltage power supply module 211 is really connected with the variable voltage output module 271, and the microcontroller 24 sends a communication voltage parameter to the programmable logic chip of the variable voltage output module 271, and the programmable logic device outputs a specified voltage according to the basic voltage and the voltage parameter given by the microcontroller 24, so that the integrator realizes real power-up. After the base table is electrified for a period of time, the next step is to start the base table communication. The microcontroller 24 determines whether the base table is in the half-duplex mode or the full-duplex mode according to the protocol type. If the mode is half duplex, the microcontroller 24 sends a control signal to the 485 communication chip 1, so that the 485 communication chip 1 is in a sending mode and does not process the 485 communication chip 2. Then the microcontroller 24 sends data stream to the 485 communication chip 1, and the 485 communication chip 1 processes signals by itself and then sends the signals to the integrating instrument. After the data transmission is finished, the microcontroller 24 immediately sends a control signal to the 485 communication chip 1, so that the 485 communication chip 1 is changed into a receiving state to wait for receiving the response of the integrating instrument. After the integrating instrument responds, the microprocessor 24 receives the returned data, records and analyzes the data, and if the data is found to be qualified, the microcontroller 24 sends a control command to the 485 communication chip 1 to close the communication function. Meanwhile, the microprocessor 24 sends a control signal to the variable voltage output module 271 to turn off the transistor on-off circuit, and power is not supplied. Finally, the microprocessor 24 sends a control signal to the indicator light circuit module 224 to turn off the yellow light, and the base meter communication process is completely ended. If the microcontroller 24 finds that the data is unqualified after processing the data, the microcontroller 24 repeats the above data sending operation until the redundancy times are reached, and the microcontroller 24 closes the communication, closes the flow and turns off the yellow light according to the same operation no matter whether the redundancy times are successful or not.
Example two: valve control process
The valve control flow path comprises three items of valve opening, valve closing and valve detection. When the valve is opened, the microcontroller 24 generates a power control signal to the servo motor module 281, the on-off circuit of the triode of the servo motor module 281 is opened, the voltage division power supply module 211 really starts to power on the valve driving chip of the servo motor module 281, the microcontroller 24 sends an opening control signal to the valve driving chip of the servo motor module 281 again, the valve driving chip is set in the opening mode, the level of the opening line is set to be high level, and the level of the closing line is set to be low level. Due to the direct electrical connection between the external valve and the valve chip, the external valve will perform a valve opening operation under voltage control, and after a period of valve opening, the microcontroller 24 will start to detect the valve opening and closing condition. The microcontroller 24 sends a control signal to the valve detection module 282 to set one end of the position switch to a high level, and then the microcontroller 24 detects the level of the other end of the position switch of the valve detection module 282, if the valve is not fully opened, the level detected by the microcontroller 24 is the high level, otherwise the high level is detected. If the external valve is opened, the microcontroller 24 detects a low level, and the opening is deemed to be stopped. The microcontroller 24 generates a power control signal to the servo motor module 281, the triode circuit of the servo motor module 281 is cut off, the power supply is stopped, and the valve opening is finished. When the valve needs to be closed for the collector, the microcontroller 24 generates a power control signal to the servo motor module 281, the triode on-off circuit of the servo motor module 281 is opened, the valve driving chip of the servo motor module 281 is powered on, the microcontroller 24 sends a valve closing control signal to the valve driving chip of the servo motor module 281 again, the valve driving chip is placed in a valve closing mode, the level of a valve closing line is set to be high, the level of a valve opening line is set to be low, at the moment, the external valve starts to close the valve under voltage control, generally, after the valve closing time is up, the microcontroller 24 starts to detect the state of the valve, and contrary to the valve opening, the microcontroller 24 sends a control signal to the valve detection module 282 to detect the level change of the other end. If the level is high level, the microcontroller 24 determines that the valve closing is correct, if the level is low level, the microcontroller 24 determines that the valve closing fails, and repeats the above process again until the valve closing redundancy times are reached, the microcontroller 24 generates a power control signal to the servo motor module 281, the triode circuit of the servo motor module 281 is cut off, the power supply stops supplying, and the valve closing process is ended.
Example three: remote communication process
The remote communication module 252 of the remote communication management unit 25 adopts a 4G full network communication module, and is compatible with 7 types of SIM cards of 2G, 3G, and 4G modes of telecommunications, mobility, and connectivity, and the SIM card is installed on the SIM card driver module 253, and is controlled by the remote communication module 252 to drive and exchange information. The power supply voltage conversion module 251 is responsible for converting the power supply provided by the voltage division power supply module 211 into the voltage required by the telecommunication module 252. After triggering the remote communication process internally or externally, the microcontroller 24 sends a control signal to the visual lcd module 222 to display the "signal identifier" and start the reporting countdown. The microcontroller 24 sends a control command to the power supply voltage conversion module 251 to make it really communicate with the voltage division power supply module 211. The supply voltage conversion module 251 starts to operate and provides the remote communication module 252 with an operating voltage. After the remote communication module 252 is powered on, the microcontroller 24 sends a control signal to the remote communication module 252 to reset the remote communication module, and starts the operation mode after waiting for a certain time. Microcontroller 24 instructs telecommunications module 252 to test and determine whether it is operational. Meanwhile, the remote communication module 252 also sends a control command to the SIM card driver module 253 to enable the SIM card driver module 253 to be in a reset state, and after the SIM card is reset, the remote communication module 252 sends a command for reading the unique identifier of the SIM card to the SIM card driver module 253 to read information such as the ICCID, the IMSI and the like of the SIM card. The remote communication module 252 compares the read results to determine that the SIM card is a mobile, a universal, or a telecommunication SIM card among three operators. After the confirmation is completed, the remote communication module 252 quickly loads the network parameters of the operator and starts the network access operation. The user can then freely select the SIM card type according to the local situation. After the remote communication module 252 accesses the network, it connects to the background system according to the information such as IP and port number stored in the process data storage unit 23, and at this time, the microcontroller 24 sends a handshake instruction to the background to confirm the correctness of the connection. After the correct connection is confirmed, data communication can be carried out between the collector and the background system. In general, after the instruction interaction is completed, the background system sends a command to close the communication to the collector, and the micro controller 24 of the collector sends a control signal to the remote communication management unit 25 to cut off the power supply. If the communication is abnormal, the microcontroller 24 will actively disconnect the background after the timeout period, and cut off the power supply of the remote communication management unit 25.
The short message support setting module reports the needed IP address and port number and starts the self-upgrade function. The staff can send fixed format command to the collector as long as they know the number of the SIM card of the collector. After the collector finishes reporting each time, the remote communication module 252 sends a query instruction to the SIM card, the SIM card returns data, if the remote communication module 252 queries that the SIM card has a short message, the content of the short message is returned to the microcontroller 24, the microcontroller 24 acquires relevant data from the flow data storage unit 23, judges whether the content of the short message is legal, if so, processes the data in pieces, covers and stores the parameters, and if not, discards the short message if not. After the short message is processed, the micro-controller 24 sends control information to the remote communication module 252 to send a control command to the SIM card driver 253 to delete the short message. If the short message content has a remote self-upgrade instruction, the microcontroller 24 immediately starts the module to perform ftp connection after the report is finished. The connection process is the same as the connection process when reporting. After the connection, the microcontroller 24 sends a query instruction to the remote communication module 252, and the remote communication module 252 sends the query instruction to the ftp background to query whether a new program is to be upgraded. If so, the remote communication module 252 downloads the latest program and places it in the process data storage unit 23 via the microcontroller 24. If not, microcontroller 24 is notified to immediately shut down the module. After the new program is downloaded, the microcontroller 24 automatically resets to start the new program.
Aiming at the defects in the prior art, the collector is a remote transmission device which takes an ultra-long standby lithium battery as a power supply battery, regularly collects data of different base tables through an RS485 bus and transmits the data to a background server by utilizing a 4G network. The collector adopts an MSP430F5438A single chip microcomputer with ultra-low power consumption as an inner core, adopts a large-capacity lithium battery for power supply, and implements a short power supply strategy inside the collector, thereby achieving the service life of more than 3 years. The collector communicates with the base meter in an RS485 bus mode with strong anti-interference performance, more than 10 base meter protocols are arranged in the collector, and the voltage of the base meter can be set. The user can switch to different integrator protocols and supply voltages by infrared or remotely. The collector can control the valve through infrared and remote control to open and close the valve. The collector adopts a 4G full-network communication module, and can be compatible with SIM cards of mobile operators, communication operators and telecommunication operators. Meanwhile, the collector has a remote self-upgrading function. In addition, the collector also has a short message setting function and is provided with an infrared communication interface.
Claims (9)
1. A remote intelligent collector is characterized by comprising a power management unit, a man-machine interaction unit, a process data storage unit, a microcontroller, a remote communication management unit, an infrared communication unit, a base table communication management unit and a valve management unit, wherein the microcontroller is connected with the power management unit, the man-machine interaction unit, the process data storage unit, the remote communication management unit, the infrared communication unit, the base table communication management unit and the valve management unit, and the power management unit supplies power to the microcontroller, the man-machine interaction unit, the process data storage unit, the remote communication management unit, the infrared communication unit, the base table communication management unit and the valve management unit.
2. The remote intelligent collector according to claim 1, characterized in that:
the power management unit provides power for the whole collector and is the basis for the work of other modules;
the man-machine interaction unit is used for providing interaction between a user and the collector;
the flow data storage unit stores the working flow and basic parameters required by the working of each module;
the microcontroller controls the operation of the whole collector;
the remote communication management unit is responsible for interaction between the collector and the background system and transmits the basic condition of the collector to the background system;
the infrared communication unit is responsible for communicating with the infrared tool, and parameters required by the operation of the collector are set in the collector and stored in the process data storage unit by the microcontroller;
the base table communication management unit is responsible for the communication between the microcontroller and an external integrating instrument to acquire required information;
and the valve management unit is responsible for managing the opening and closing of the valve and the detection work of the valve under the control of the microcontroller.
3. The remote intelligent collector according to claim 2, wherein the power management unit comprises a voltage-dividing power supply module and a power detection module, the voltage-dividing power supply module can output different power supply voltages through a plurality of voltage-stabilizing module circuits, and the voltages are respectively supplied to the human-computer interaction unit, the process data storage unit, the microcontroller, the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit;
the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit are internally provided with triode on-off circuits, the disconnection and the connection of the triodes are controlled by the microcontroller, and only after the microcontroller sends a power supply signal, the triodes are switched on, and the voltage division power supply module can really supply voltage to the remote communication management unit, the infrared communication unit, the base meter communication management unit and the valve management unit; after the units complete the work, the microcontroller sends control signals to the modules, the triode is disconnected, and the power supply of the units is stopped;
the microcontroller is connected with the power detection module in a control mode, the power detection module is a detection unit which is composed of a triode and a bleeder circuit, the triode is mainly used for switching on and off the bleeder circuit, the bleeder circuit is used for modulating the battery voltage into a voltage range which can be detected by the microcontroller, so that the microcontroller can utilize internal AD sampling to obtain a quantized value of the battery voltage after multiple reduction, power detection is carried out at regular time, the microcontroller sends a control signal to the power detection module at fixed intervals, the power detection module receives the power detection signal and then switches on the triode, after the triode is switched on, the bleeder circuit plays a role, the microcontroller detects the detection end voltage of the bleeder circuit, and the quantized value of the corresponding battery voltage is obtained through the internal AD conversion circuit.
4. The remote intelligent collector according to claim 2, wherein the human-computer interaction unit comprises a key processing module, a visual liquid crystal display module, a buzzer circuit module and an indicator light circuit module;
the key processing module mainly comprises keys and a realization circuit thereof, and the circuit forms a passage after a user presses the keys; after popping up, the circuit is cut off; the user can trigger an event through a key, the key of the user is divided into two types, namely a short key and a long key, if the key is pressed for more than 3 seconds, the microcontroller considers that the user triggers the long key event, otherwise, the microcontroller considers that the user triggers the short key event, and the short key can trigger two events, namely, triggering base table communication to acquire the latest accumulated gas consumption and triggering a screen to display parameter information; the long key also triggers two events, namely triggering remote transmission reporting and triggering a screen to display reporting parameter information;
the visual liquid crystal display module is composed of a liquid crystal display screen display circuit, the liquid crystal display screen adopts an industrial large screen, and the displayable contents of the liquid crystal display screen comprise a user number, standard condition accumulated flow, a valve state, a battery state, a collector state, a reporting state and countdown time;
the buzzer circuit module comprises a buzzer and an implementation circuit thereof, and the microcontroller controls the buzzer to sound temporarily when the collector is abnormal, a user presses a short key and infrared communication is successful; when the collector has abnormal reporting, long key pressing by a user and the like, the microcontroller controls the collector to sound for a long time;
the indicating lamp circuit module comprises indicating lamps and a realization circuit thereof, the colors of the two indicating lamps are yellow and green, and the turning on and off of the two indicating lamps are respectively controlled by the microcontroller; the microcontroller sends a yellow light control signal to the indicating lamp circuit module, a yellow light in the indicating lamp circuit module realizes circuit conduction of the circuit, and the yellow light is lighted when current flows through the yellow light; the microcontroller sends a yellow lamp control signal to the indicating lamp circuit module again, a yellow lamp in the indicating lamp circuit module realizes the circuit conduction and the circuit cutoff, no current flows through the yellow lamp all the time, and the yellow lamp is turned off; the green light is controlled by the microcontroller in the same way; when the base meter is in communication, the yellow lamp is lightened, when the collector operates and operates successfully, the green lamp is lightened, otherwise, the green lamp is extinguished or not lightened;
the visual liquid crystal display module is mainly used for displaying the current state of the current collector, and after the battery is undervoltage, the liquid crystal display screen displays the battery replacement and the number of 1 cell of the battery; after the battery is decompressed, the liquid crystal display screen displays the grid number of the battery and the space battery; when the battery voltage is normal, the liquid crystal display screen displays the number of the two or three battery grids; if the collector is carrying out remote communication, the liquid crystal display screen can flash and display the signal identification;
the buzzer circuit module is characterized in that whether the buzzer sounds or not and how long the buzzer sounds are controlled by the microcontroller, the buzzer is in a silent state under a normal condition, and the buzzer sounds only when the collector is abnormal or a user presses a key to trigger; when a user presses a key for a short time, the buzzer rings for a short time, and then the base table communication process is executed; when a user presses a key for a long time, the buzzer buzzes for a long time, and then the remote communication flow is started; if the gas leakage occurs when the user uses the gas or the microcontroller detects abnormal conditions such as disconnection of the integrating instrument and the base meter communication management unit, the buzzer circuit module can also buzz for reminding temporarily; after the microcontroller detects that the battery is under-voltage or the battery loses voltage, the buzzer is required to sound for reminding for a short time.
5. The remote intelligent collector according to claim 2, wherein the base meter communication management unit comprises a variable voltage output module and a base meter communication module, the variable voltage output module is electrically connected with an external power input port of an external integrating instrument and is electrically connected with a voltage division power supply module; the base meter communication module is in communication connection with a communication port of an external integrating instrument and is electrically connected with the voltage division power supply module; the variable voltage output module consists of a triode on-off circuit and a programmable logic device, the variable voltage output module provides basic voltage by a voltage division power supply module, the microcontroller controls whether the power supply is really realized, the power supply is not realized in a normal state, and the base meter is started when in communication; meanwhile, according to the base table communication voltage stored in the process data storage unit, the microcontroller can write the voltage into the programmable logic device, so that the programmable logic device outputs the set voltage; the base meter communication module mainly comprises a triode switch circuit, the on-off of the triode switch circuit is controlled by the microcontroller, and the base meter communication module controls the use and the closing of the base meter communication module according to the protocol type of the base meter; the base meter communication module consists of 2 485 communication chips and an implementation circuit thereof, when only one 485 communication chip works, the base meter communication mode is a half-duplex communication mode, and under the half-duplex working mode, the communication can not be simultaneously transmitted and received, and only data can be transmitted when a link is idle; when both the two modules are used, the two modules are in a full duplex communication mode, and the transmission and the reception can be synchronously carried out at the moment;
the base table communication process and the base table communication parameters are stored in the process data storage unit, the base table communication parameters can be set through infrared or remote, various totalizer protocols are built in the process data storage unit, the base table protocols and the base table communication voltage are set through infrared and remote according to different totalizer models before use, and the microcontroller is directly called when the base table communication process is executed next time.
6. The remote intelligent collector according to claim 2, wherein the valve management unit comprises a servo motor module and a valve detection module, the servo motor module is connected with the power management unit, and the on-off of the servo motor module is controlled by the microcontroller; the servo motor module is electrically connected with an external valve, consists of a valve driving chip and a realization circuit thereof, and has the main functions of outputting fixed voltage, outputting positive voltage at a valve opening level when the valve is opened and grounding a valve closing level; when the valve is closed, the valve closing level outputs positive voltage, and the valve opening level is grounded;
the valve detection module consists of a detection circuit, the microcontroller controls the on-off of the detection circuit, when the valve is opened, the microcontroller sends a control command to a valve driving chip of the valve control module, the valve chip outputs the opening level as high voltage, and outputs the closing level as low level; the external valve starts to execute valve opening operation after the level is switched on; the microcontroller starts the valve to detect after the valve is opened for a certain time, sends a valve detection signal to the valve detection module, and the circuit of the valve detection module is communicated, if the external valve is opened completely, two detection lines of the valve detection module become a passage.
7. The remote intelligent collector according to claim 2, wherein the infrared communication unit mainly comprises an infrared communication circuit, an infrared transmitting tube and an infrared receiving head, the infrared transmitting tube transmits data to the infrared tool, and the infrared receiving head receives the data of the infrared tool in radio wave mode; the microcontroller controls the start and the end, the sending and the receiving of the infrared equipment, the microcontroller keeps the infrared receiving head and the circuit thereof in a working state, and keeps the infrared transmitting tube and the circuit thereof in a closed state, and the infrared can be started to work after being activated; the infrared communication unit is used for setting parameters into the collector and storing data in the process data storage unit through the microcontroller.
8. The remote intelligent collector according to claim 2, wherein the remote communication management unit comprises a power supply voltage conversion module, a remote communication module and an SIM card driving module, the remote communication module is connected with the microcontroller in a UART mode, the power supply voltage conversion module is connected with the power supply management unit, and the SIM card driving module is connected with the remote communication module; the power supply voltage conversion module mainly comprises a triode on-off circuit, a level conversion chip and a realization circuit thereof, wherein a voltage division power supply module of the power supply management unit provides basic voltage for the power supply management unit, and the level conversion chip can convert the basic voltage into the voltage required by the remote communication module and the SIM card driving module; the remote communication module comprises a 4G full-network communication module and a realization circuit thereof, the module is mainly used for communicating with a background system, and the communication content comprises setting parameters, reading parameters and reporting freezing records; the SIM card driving module is composed of an SIM card and a realization circuit thereof, is attached to the remote communication module and is used for driving the loaded SIM card to work and communicating with a background system; the SIM card driving module is provided with a metal buckle, so that a user can select SIM cards of different operators according to requirements.
9. The working method of the remote intelligent collector according to claim 2, characterized in that:
after the collector is provided with a battery, a partial pressure power supply module of a power supply management unit starts working to respectively supply different voltage signals to a human-computer interaction unit, a process data storage unit, a microcontroller, a remote communication management unit, an infrared communication unit, a base table communication management unit and a valve management unit, the microcontroller performs initialization operation after being powered on and acquires data and processes required by normal operation from the process data storage unit, and after a circuit is stabilized, the microcontroller acquires a main circulation process to respectively execute a power supply detection process, a key scanning processing process, a display process, a base table communication process, a valve control process, a 4G communication process and an infrared communication process; the power supply detection process is always carried out, and other processes are only executed when external or internal triggering exists.
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