CN207439486U - A kind of low-power consumption gas meter, flow meter metering device - Google Patents
A kind of low-power consumption gas meter, flow meter metering device Download PDFInfo
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- CN207439486U CN207439486U CN201721471669.4U CN201721471669U CN207439486U CN 207439486 U CN207439486 U CN 207439486U CN 201721471669 U CN201721471669 U CN 201721471669U CN 207439486 U CN207439486 U CN 207439486U
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Abstract
A kind of low-power consumption gas meter, flow meter metering device is claimed in the utility model, including microcontroller, which is characterized in that further include respectively with the electromechanical transformation module of the monolithic mechatronics, button, motor valve drive module, memory and communication module；The microcontroller uses super low power consuming single chip processor, and the microcontroller has a variety of low power mode of operation；The motor valve drive module is connected to an accessory power supply by first switch, and the communication module connects accessory power supply by second switch, and the accessory power supply is connected by first switch and second switch with two ports of microcontroller respectively.The present apparatus reduces system power dissipation, improves efficiency of energy utilization.
Description
Technical field
The utility model belongs to gas meter, flow meter metering field, particularly belongs to a kind of low-power consumption gas meter, flow meter metering device.
Background technology
In existing gas meter, flow meter technical field, the power consumption of gas meter, flow meter metering system is very big, to solve gas meter, flow meter metering system
Power consumption is excessive, cause metering system with it is used for dry cell when it is shorter the problem of, in order to energy saving, the utility model provides one kind
Low-power consumption gas meter, flow meter metering device reduces system power dissipation, improves efficiency of energy utilization.
Utility model content
The utility model aims to solve the problem that more than problem of the prior art.Proposing one kind reduces system power dissipation, improves energy
The low-power consumption gas meter, flow meter metering device of source utilization ratio.The technical solution of the utility model is as follows：
A kind of low-power consumption gas meter, flow meter metering device, including microcontroller, further include respectively with the monolithic mechatronics
Electromechanical transformation module, button, motor valve drive module, memory and communication module；The microcontroller uses super low-power consumption monolithic
Machine, and the microcontroller has a variety of low power mode of operation；The motor valve drive module is connected to one by first switch
Accessory power supply, the communication module connect accessory power supply by second switch, and the accessory power supply passes through first switch and second
Switch is connected respectively with two ports of microcontroller, and the metering of gas meter, flow meter is carried out by electromechanical transformation module, by gas meter, flow meter end
The character wheel machinery signal that moves in turn in position is converted to electric impulse signal, and pulse signal is sent into microcontroller, and step-by-step counting is carried out by microcontroller, with
Umber of pulse metering gas flow.
Further, the microcontroller tool respectively waits WAIT, Low Power there are five types of low power mode of operation
Run Mode low batteries operating mode, Low Power Wait Mode low batteries standby mode, Active-Halt Mode dynamics
On-hook pattern, Halt Mode on-hook patterns, in different operating modes, crystal oscillator, CPU, peripheral hardware and the wake-up mode of microcontroller
It is different, so as to reduce operation power consumption.
Further, the microcontroller uses the microcontroller of STM8L serial model No.s using the microcontroller, based on combustion gas
The gas flow for measuring device counts and motor valve control and the protection alarm and human-computer interaction of system.
Further, the memory selects AT24C series EEPROM, and in 2.7V operating voltages, quiescent current is only
1.6uA configures parameter and real time measure data for save set.
Further, the motor valve drive module is connected the I/O port PD7 of microcontroller, is used for using push-and-pull driving circuit
Push and pull the control signal of driving.
Further, the communication module uses MAX485 model chips, and accessory power supply uses the micro- work(of MD5333 low voltage differences
Linear power supply is consumed, connects the UART ports of microcontroller, is received and dispatched for communication module.
It the advantages of the utility model and has the beneficial effect that：
The utility model is used for Intelligent gas meter metering device, and existing Intelligent gas meter metering device includes burnt gas valve
Control system, communication system, metering system and protection alarm system etc..Although quiescent current is smaller when each several part works,
Due to long-time on-line operation, and China's metering system substantial amounts, it is more than if the newly-increased sales volume of intelligent gas meter in 2016
20000000, energy consumption cumulative effect is surprising.It is 8-10 months to replace average period such as current intelligent gas meter dry cell, this practicality
The new average power consumption for reduction intelligent gas meter metering control system extends the service life of battery, Tthe utility model system
Average power consumption is 18uA, is the half or so of current metering control system power consumption, and electricity is done for annual more than 2,000 ten thousand groups of the saving of society
The consumption in pond generates huge social and economic effects.
Description of the drawings
Fig. 1 is that the utility model provides preferred embodiment low-power consumption gas meter, flow meter metering device schematic diagram figure；
Fig. 2 represents device software initialization flow；
Fig. 3 represents device interrupt processing flow；
Fig. 4 represents device timing wake-up process flow.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It is clear, describe in detail.Described embodiment is only the part of the embodiment of the utility model.
The utility model solve above-mentioned technical problem technical solution be：
A kind of low-power consumption gas meter, flow meter metering device, including microcontroller, further include respectively with the monolithic mechatronics
Electromechanical transformation module, button, motor valve drive module, memory and communication module；The microcontroller uses super low-power consumption monolithic
Machine, and the microcontroller has a variety of low power mode of operation；The motor valve drive module is connected to one by first switch
Accessory power supply, the communication module connect accessory power supply by second switch, and the accessory power supply passes through first switch and second
Switch is connected respectively with two ports of microcontroller, and the metering of gas meter, flow meter is carried out by electromechanical transformation module, by gas meter, flow meter end
The character wheel machinery signal that moves in turn in position is converted to electric impulse signal, and pulse signal is sent into microcontroller, and step-by-step counting is carried out by microcontroller, with
Umber of pulse metering gas flow.
Further, the microcontroller tool respectively waits WAIT, Low Power there are five types of low power mode of operation
Run Mode low batteries operating mode, Low Power Wait Mode low batteries standby mode, Active-Halt Mode dynamics
On-hook pattern, Halt Mode on-hook patterns, in different operating modes, crystal oscillator, CPU, peripheral hardware and the wake-up mode of microcontroller
It is different, so as to reduce operation power consumption.
Further, the microcontroller uses the microcontroller of STM8L serial model No.s using the microcontroller, based on combustion gas
The gas flow for measuring device counts and motor valve control and the protection alarm and human-computer interaction of system.
Further, the memory selects AT24C series EEPROM, and in 2.7V operating voltages, quiescent current is only
1.6uA configures parameter and real time measure data for save set.
Further, the motor valve drive module is connected the I/O port PD7 of microcontroller, is used for using push-and-pull driving circuit
Push and pull the control signal of driving.
Further, the communication module uses MAX485 model chips, and accessory power supply uses the micro- work(of MD5333 low voltage differences
Linear power supply is consumed, connects the UART ports of microcontroller, is received and dispatched for communication module.
In the utility model, related low-power consumption processing routine and its communication module on microcontroller processing are not this realities
It is that those skilled in the art need not make the creative labor just obtainable, this reality where the new emphasis to be protected
With it is new to be protected be its modules before connection relation and its use specific component, reach low-power consumption metering
Purpose.
Gas meter, flow meter operation principle：Gas meter, flow meter is metering for combustion gas, control and protection.Metering is to convert gas flow
For character wheel mechanical movement, the mechanical movement of last position character wheel is converted into Hall electric impulse signal, is gathered by microcontroller and calculates pulse letter
Number it is converted into combustion gas stream magnitude.
1) in the utility model, the microcontroller of super low-power consumption is selected, and with a variety of low power mode of operation, such as STM8L,
STM32L etc., have WAIT, Low Power Run Mode, Low Power Wait Mode, Active-Halt Mode,
5 kinds of low power mode of operation such as Halt Mode, in different operating modes, crystal oscillator, CPU, peripheral hardware and wake-up mode are not
Together, so as to reducing operation power consumption；
In Fig. 2-Fig. 4, the CMOS type device of super low-power consumption is selected, such as memory selects AT24C series EEPROM,
Quiescent current is only 1.6uA during 2.7V operating voltages；
3) all DI handle external signal using interrupting input mode in interrupt service routine；
4) confession of external equipment is electrically controllable, when MCU need to access external equipment, just powers to the equipment, after access
It stops power supply immediately；
5) operating voltage of system is reduced, the operating voltage of MCU and external device is reduced as far as possible, to reach reduction power consumption
Purpose.
2nd, low-power consumption software processing flow
1) in port initialization, all input ports are arranged to the input that suspends, output port is arranged to push-pull type output,
All unused ports are arranged to push-pull type output, and it is 0 to export signal；
2) in external DI signals, all using interrupt mode, when external signal is effective, CPU is waken up, is cut from HALT patterns
Change to operating mode, and clock be switched to high-frequency state, interrupt service routine has been handled within the shortest time, after immediately into
Enter HALT patterns；
3) RTC block is enabled, timing is long as far as possible, during each Interruption, wakes up CPU, is cut from HALT patterns
Change to operating mode, and clock be switched to high-frequency state, interrupt service routine has been handled within the shortest time, after immediately into
Enter HALT patterns.
The above embodiment is interpreted as being merely to illustrate the utility model rather than limits the guarantor of the utility model
Protect scope.After the content of record of the utility model has been read, technical staff can make the utility model various changes
Or modification, these equivalence changes and modification equally fall into the utility model claims limited range.
Claims (6)
1. a kind of low-power consumption gas meter, flow meter metering device, including microcontroller, which is characterized in that further include electromechanical with the monolithic respectively
Electromechanical transformation module, button, motor valve drive module, memory and the communication module of connection；The microcontroller uses ultralow work(
Microcontroller is consumed, and the microcontroller has a variety of low power mode of operation；The motor valve drive module is connected by first switch
Then an accessory power supply, the communication module connect accessory power supply by second switch, and the accessory power supply passes through first switch
It is connected respectively with two ports of microcontroller with second switch, the metering of gas meter, flow meter is carried out by electromechanical transformation module, will be fired
The character wheel machinery signal that moves in turn in gas meter end position is converted to electric impulse signal, and pulse signal is sent into microcontroller, and pulse is carried out by microcontroller
It counts, with umber of pulse metering gas flow.
2. low-power consumption gas meter, flow meter metering device according to claim 1, which is characterized in that there are five types of low for the microcontroller tool
Power consumption operating mode respectively waits WAIT, Low Power Run Mode low batteries operating mode, Low Power Wait
Mode low batteries standby mode, Active-Halt Mode dynamic on-hooks pattern, Halt Mode on-hook patterns, in different works
In operation mode, the crystal oscillator of microcontroller, CPU, peripheral hardware and wake-up mode are different, so as to reduce operation power consumption.
3. the low-power consumption gas meter, flow meter metering device according to one of claim 1-2, which is characterized in that the microcontroller uses
The microcontroller uses the microcontroller of STM8L serial model No.s, is counted and motor valve control for the gas flow of combustible gas metering arrangement
The protection alarm and human-computer interaction of system and system.
4. low-power consumption gas meter, flow meter metering device according to claim 3, which is characterized in that the memory selects AT24C
Serial EEPROM, in 2.7V operating voltages, quiescent current is only 1.6uA, and parameter and real time measure number are configured for save set
According to.
5. low-power consumption gas meter, flow meter metering device according to claim 3, which is characterized in that the motor valve drive module is adopted
With driving circuit is pushed and pulled, the I/O port PD7 of microcontroller is connected, for pushing and pulling the control signal of driving.
6. low-power consumption gas meter, flow meter metering device according to claim 3, which is characterized in that the communication module uses
MAX485 model chips, accessory power supply use MD5333 low voltage difference micro energy lose Linear power supplys, connect the UART ports of microcontroller,
It is received and dispatched for communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471669.4U CN207439486U (en) | 2017-11-07 | 2017-11-07 | A kind of low-power consumption gas meter, flow meter metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721471669.4U CN207439486U (en) | 2017-11-07 | 2017-11-07 | A kind of low-power consumption gas meter, flow meter metering device |
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| CN207439486U true CN207439486U (en) | 2018-06-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006733A (en) * | 2019-11-22 | 2020-04-14 | 杭州芯象半导体科技有限公司 | Metering device and meter |
-
2017
- 2017-11-07 CN CN201721471669.4U patent/CN207439486U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006733A (en) * | 2019-11-22 | 2020-04-14 | 杭州芯象半导体科技有限公司 | Metering device and meter |
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