CN103824435B - A kind of method for extending ammeter stand-by time during radio frequency is checked meter and the method that electricity consumption data is received and dispatched by RF-wise - Google Patents

Abstract

The invention discloses a kind of method for extending ammeter stand-by time during radio frequency is checked meter, realized based on kilowatt meter recorder, this kilowatt meter recorder includes ammeter and RF communication sections coupled thereto, and the handhold read-write equipment being connected with this RF communication section, MCU in the ammeter is set to into RXD pin wake-up states, which is made not to be timed wake-up and be continuously in resting state, while the RF communication sections being set as, the state of air-data is monitored in timing.The present invention in the case of battery powered checked meter by the communication modes of control RF modules, can effectively be extended the stand-by time and power consumption of ammeter equipment.The invention also discloses a kind of method for receiving and dispatching electricity consumption data by RF-wise.

Description

A kind of method for extending ammeter stand-by time during radio frequency is checked meter and by penetratingThe method that frequency mode receives and dispatches electricity consumption data

Technical field

The present invention relates to ammeter technology, extends during checking meter more particularly, to a kind of radio frequency when ammeter battery is poweredThe method of device standby time, and a kind of method that electricity consumption data is received and dispatched by RF-wise.

Background technology

Ammeter it is battery powered in the case of, need wirelessly, such as radio frequency（RF）Carry out wireless electricity consumption numberAccording to copy reading, the microprocessor unit of ammeter（MCU）The state for keeping persistently waking up is needed, while control RF modules to go persistently to connectWireless data is received, but is being not received by the time period of data（Possible distal end arranges timing receipt data, such as 3S or moreFor a long time）, the working condition at ammeter end remained in full speed running, can so cause the waste of more battery power consumptions, becauseThis is simultaneously inadvisable.

The content of the invention

Embodiments of the invention are solved or reduce the defect of prior art, in the case of battery powered, by controlling RFThe communication modes of module can effectively extend the stand-by time and power consumption of ammeter equipment being checked meter.The one of the present inventionThe monitoring of air-data in individual preferred embodiment, is only carried out by RF modules, and is carried out according to presetting communications protocol in early stageThe data filtering of prime is processed, and when data are designated as effective, directly wakes up line number of going forward side by side by downgoing communication mouth TXD portsAccording to process.

The advantage of this embodiment is that the MCU of ammeter equipment will not when aerial no data or when there is invalid dataIt is waken up and is constantly in resting state, average power consumption of the integral device under power down holding state can be effectively reduced, fromAnd effectively extend the service life of battery.

A kind of method for extending ammeter stand-by time during radio frequency is checked meter of the present invention, it is in addition real based on kilowatt meter recorderExisting, this kilowatt meter recorder includes ammeter and radio frequency coupled thereto（RF）Communication section, and it is hand-held with what this RF communication section was connectedRead-write equipment（HHU）, it is characterised in that：By the microprocessor in the ammeter（MCU）It is set to RXD pin wake-up states so as toIt is not timed wake-up and is continuously in resting state, while the RF communication sections is set as, the shape of air-data is monitored in timingState.

Further, the RF communication sections are set to carry out data below receiving step：

1）The RF communication sections are set as into a kind of low-power consumption standby state, the first of its monitoring air-data is then turned onIntervalometer；

2）Judge whether to reach a timing time limit by its data processing division, if so, then RF communication sections are waken up and go forward side by sideEnter full speed running state, now its RF module is unlocked and in receiving data state, if it is not, being then back to step 1）；

3）Monitored by the RF modules and whether there is in the air data is activation, if having, by its data processing division according toCommunications protocol carries out pretreatment to receiving data, judges that whether effectively data, if nothing, are back to step 1）；

4）If the receiving data is effectively, by the RF modules by ammeter wake-up signal and pretreated reception numberAccording to sending to ammeter, this ammeter is waken up by RXD pins, if the receiving data is invalid, be back to step 3）；

5）One the first time limit T1 is set by the data processing division, so that the RF modules judge whether ammeter hasFeedback data, if having not timed out, the feedback data for receiving is sent to HHU by the RF modules, if overtime, is back to step1）.

Further, the MCU is set to carry out data below transceiving step：1）MCU is set as into low-power consumption standby shapeState；2）Judge whether its RXD pin has wake-up signal, if having, MCU is waken up and enters full speed running state, if nothing, returnsIt is back to step 1）；3）Judge whether receiving data is valid data by the MCU, if so, then MCU send feedback data toRF modules, feedback data to the HHU to send this by the RF modules, if it is not, being then back to step 1）.

It is as preferred, of the invention that air-data monitoring action is carried out by the RF modules only.

As preferred, in step 3）In also include according to default communications protocol, carry out front stage network data filtration, withData type is labeled as " legal " or " illegal " type by this, only when data type is judged to " legal ", logical by the RFThe downgoing communication port TXD in news portion directly into the MCU RXD pins carrying out ammeter wake actions.

The invention also discloses a kind of method for receiving and dispatching electricity consumption data by RF-wise, in addition real based on kilowatt meter recorderExisting, this kilowatt meter recorder includes ammeter and RF communication sections coupled thereto, and the HHU being connected with this RF communication section, its featureIt is：MCU in the ammeter is set to into resting state, the second timer for monitoring air-data is opened, by its RXD pinCouple the RF modules in the RF communication sections.

Further, the MCU and RF modules coupled thereto are set to carry out data below transceiving step：

1）Judge whether to reach a timing time limit by MCU, if so, then MCU and RF communication sections are gone forward side by side by wake-up simultaneouslyEnter full speed running state, now RF modules are unlocked and in receiving data state；

2）Monitored by the RF modules and whether there is in the air data is activation, if having, by MCU according to communications protocol pairReceiving data carries out pretreatment, judges that whether effectively data, if nothing, are back to step 1）；

3）Send data and be back to step 1 to aerial by RF modules）.

Further, in step 2）In also include according to default communications protocol, carry out front stage network data filtration, with thisData type is labeled as into " legal " or " illegal " type.

Average current Is of the heretofore described MCU to RF modules_EVEControl meet relation：I_EVE= （U·T_A/T）/ 2R,Real work voltages of the wherein U for RF modules, T_A/ T is dutycycle, and R is impedance.

Specific embodiment

The method for extending ammeter stand-by time during radio frequency is checked meter of the embodiment of the present invention, based on kilowatt meter recorder in additionRealize, this kilowatt meter recorder includes ammeter and RF communication sections coupled thereto, and the handhold read-write being connected with this RF communication sectionEquipment（HHU）, the MCU in the ammeter is set to into RXD pin wake-up states so as to be not timed wake-up and be continuously in notDormancy state, while the RF communication sections being set as, the state of air-data is monitored in timing.

In another embodiment, the RF communication sections are set to carry out data below receiving step：1）The RF is led toNews portion is set as a kind of low-power consumption standby state, is then turned on its first timer for monitoring air-data；2）By its dataProcessing unit judge whether reach a timing time limit, if so, then RF communication sections are waken up and enter full speed running state, now itsRF modules are unlocked and in receiving data state, if it is not, being then back to step 1）；3）Being monitored by the RF modules is in the airIt is no to there is data is activation, if having, pretreatment is carried out to receiving data according to communications protocol by its data processing division, number is judgedAccording to whether effectively, if nothing, step 1 is back to）；4）If ammeter effectively, is called out by the receiving data by the RF modulesAwake signal and pretreated receiving data are sent to ammeter, to wake up this ammeter by RXD pins, if the receiving data withoutEffect, is back to step 3）；5）One the first time limit T1 is set by the data processing division（Such as 1S）, so that the RF mouldsBlock judges whether ammeter has feedback data, if having not timed out, the feedback data for receiving is sent to HHU by the RF modules, ifTime-out, is back to step 1）.

In another embodiment, the MCU is set to carry out data below transceiving step：1）MCU is set as into low work(Consumption holding state；2）Judge whether its RXD pin has wake-up signal, if having, MCU is waken up and enters full speed running state,If nothing, step 1 is back to）；3）Judge whether receiving data is valid data by the MCU, if so, then MCU sends anti-Feedback data give RF modules, feedback data to the HHU to send this by the RF modules, if it is not, being then back to step 1）.

In another embodiment, air-data monitoring action is carried out by the RF modules only.

In another embodiment, in step 3）Further include, according to default communications protocol, to carry out prime networkData type is labeled as " legal " or " illegal " type with this by data filtering, only when data type is judged to " legal ", is led toThe RXD pins that the downgoing communication port TXD of the RF communication sections is crossed directly into the MCU are to carry out ammeter wake actions.

In another embodiment, a kind of method that electricity consumption data is received and dispatched by RF-wise, based on kilowatt meter recorder in additionRealize, this kilowatt meter recorder includes ammeter and RF communication sections coupled thereto, and the HHU being connected with this RF communication section, by instituteState the MCU in ammeter and be set to resting state, open the second timer for monitoring air-data, it is described by its RXD pins couplingRF modules in RF communication sections.

The MCU and RF modules coupled thereto are set to carry out data below transceiving step：1）Judged whether by MCUA timing time limit is reached, if so, then MCU and RF communication sections are waken up simultaneously and enter full speed running state, now RF modulesIt is unlocked and in receiving data state；2）Monitored by the RF modules and whether there is in the air data is activation, if having, passed throughMCU carries out pretreatment to receiving data according to communications protocol, judges that whether effectively data, if nothing, are back to step 1）；3）It is logicalCross RF modules to send data and be back to step 1 to aerial）.

In step 2）Further include according to default communications protocol, carry out front stage network data filtration, with this by numberIt is " legal " or " illegal " type according to type mark.

Further：Average current Is of the MCU to RF modules_EVEControl meet relation：I_EVE=（U·T_A/T）/ 2R,Wherein U be RF module real work voltages, T_A/ T is dutycycle, and R is impedance.

The present invention is checked meter by the communication modes of control RF modules in the case of battery powered, can be effectiveGround extends the stand-by time and power consumption of ammeter equipment.The monitoring of air-data can be carried out by RF modules only in the present invention, andEarly stage is processed according to the data filtering that presetting communications protocol carries out prime, when data are designated as effective, by descendingCommunication port TXD ports directly wake up and carry out data processing.When it is advantageous that when aerial no data or there is invalid data,The MCU of ammeter equipment will not be waken up and be constantly in resting state, can be effectively reduced integral device in the standby shape of power downAverage power consumption under state, so as to effectively extend the service life of battery.

Industrial applicibility is analyzed

According to previous embodiment, it is compared with prior art, when the MCU of ammeter is standby in one embodiment, RF mouldsBlock is set to 3S and wakes up once monitoring air-data, the outfan of battery connect 100 Ω resistance as ammeterOne fictitious load of equipment, the voltage at load two ends of being sampled by oscillograph, according to previous embodiment come computing deviceAverage power consumption（In the ideal situation, the average power consumption of RF can only be considered）, according to I_EVE=（U·T_A/T）/ 2R, 1）Before improvementActual measurement average power consumption：

Y：200mV/div（Judged with the figure of the periodic serrations ripple shown on oscillograph, longitudinal axis Y represents actual workMake voltage U, transverse axis X is the operating mode time cycle）

X：1S/div

U=800mV, T_A=1S, T=3S, R=100 Ω（T_AWork when indicating that pulse signal obtains air-data signalCycle, and T is a working cycle）

Draw I_EVE≈2666μA

And 2）Actual measurement average power consumption after improvement：

Y：20mV/div

X：1S/div

U=40mV, T_A=1S, T=3S, R=100 Ω

Draw I_EVE66.7 μ A of ≈, much smaller than the power consumption of conventional method, therefore are worth adopting.

Claims (7)

1. a kind of method for extending ammeter stand-by time during radio frequency is checked meter, is realized based on kilowatt meter recorder, and this checks meterEquipment includes ammeter and radio frequency (RF) communication section coupled thereto, and the handhold read-write being connected with this radio frequency (RF) communication sectionEquipment (HHU), it is characterised in that：Microprocessor (MCU) in the ammeter is set to into RXD pin wake-up states so as to do not enterRow timing wake-up and be continuously in resting state, while the radio frequency (RF) communication section being set as, air-data is monitored in timingState；

Air-data monitoring action is carried out by the radio frequency (RF) communication section only；

Wherein, radio frequency (RF) communication section is set to carry out data below receiving step：

1) radio frequency (RF) communication section is set as into a kind of low-power consumption standby state, be then turned on its monitor air-data theOne intervalometer；

2) judge whether to reach a timing time limit by its data processing division, if so, then radio frequency (RF) communication section is waken up simultaneouslyInto full speed running state, now its radio frequency (RF) communication section is unlocked and in receiving data state, if it is not, being then back to stepIt is rapid 1)；

3) monitored by the radio frequency (RF) communication section and whether there is in the air data is activation, if having, by its data processing divisionPretreatment is carried out to receiving data according to communications protocol, judges that whether effectively data, if nothing, are back to step 1)；

If 4), the receiving data is effectively, by the radio frequency (RF) communication section is by ammeter wake-up signal and pretreated connectsData is activation is received to ammeter, this ammeter is waken up by RXD pins, if the receiving data is invalid, step 3 is back to)；

5) a first time limit T1 is set by the data processing division, so that the radio frequency (RF) communication section judges that ammeter isNo to have feedback data, if having not timed out, the feedback data for receiving is sent to handhold read-write and is set by radio frequency (RF) communication sectionIt is standby, if overtime, it is back to step 1).

2. it is according to claim 1 during radio frequency is checked meter extend ammeter stand-by time method, it is characterised in that setDetermine the microprocessor to carry out data below transceiving step：1) microprocessor is set as into low-power consumption standby state；2) judgeWhether its RXD pin has wake-up signal, if having, microprocessor is waken up and enters full speed running state, if nothing, is back toStep 1)；3) whether it is valid data by the microprocessor judges receiving data, if so, then microprocessor sends feedback coefficientAccording to radio frequency (RF) communication section, feedback data to the handhold read-write equipment this is sent by the radio frequency (RF) communication section,If it is not, being then back to step 1).

3. it is according to claim 1 during radio frequency is checked meter extend ammeter stand-by time method, it is characterised in that：Step 3) in also include according to default communications protocol, carry out front stage network data filtration, be labeled as data type " closing with thisMethod " or " illegal " type, only when data type is judged to " legal ", by the downgoing communication end of the radio frequency (RF) communication sectionMouthful TXD directly into the microprocessor RXD pins carrying out ammeter wake actions.

4. method as claimed in any of claims 1 to 3, it is characterised in that：The microprocessor is to radio frequency (RF)The average current I of communication section_EVEControl meet relation：I_EVE=(UT_A/ T)/2R, realities of the wherein U for radio frequency (RF) communication sectionBorder running voltage, T_A/ T is dutycycle, and R is impedance.

5. a kind of method for receiving and dispatching electricity consumption data by RF-wise, is realized based on kilowatt meter recorder, and this kilowatt meter recorder includesAmmeter and radio frequency (RF) communication section coupled thereto, and the handhold read-write equipment being connected with this radio frequency (RF) communication section, itsIt is characterised by：Microprocessor in the ammeter is set to into resting state, the second timer for monitoring air-data is opened, is passed throughIts RXD pin couples radio frequency (RF) communication section in radio frequency (RF) communication section；

The microprocessor and radio frequency (RF) communication section coupled thereto are set to carry out data below transceiving step：

1) a timing time limit whether is reached by microprocessor judges, if so, then microprocessor and radio frequency (RF) communication section quiltWake up simultaneously and enter full speed running state, now radio frequency (RF) communication section is unlocked and in receiving data state；

2) monitored by the radio frequency (RF) communication section and whether there is in the air data is activation, if having, by microprocessor according toCommunications protocol carries out pretreatment to receiving data, judges that whether effectively data, if nothing, are back to step 1)；

3) data are sent and step 1 is back to aerial by radio frequency (RF) communication section).

6. it is according to claim 5 by RF-wise receive and dispatch electricity consumption data method, it is characterised in that in step 2) inAlso include according to default communications protocol, carry out front stage network data filtration, data type is labeled as with this " legal " or " non-Method " type.

7. the method according to any one in claim 5 to 6, it is characterised in that：The microprocessor is to radio frequency (RF)The control of the average current IEVE of communication section meets relation：IEVE=(UTA/T)/2R, wherein U are radio frequency (RF) communication sectionReal work voltage, TA/T are dutycycle, and R is impedance.