CN109556667A - A kind of wireless remote transmission supersonic wave metering device that supporting http protocol and method - Google Patents
A kind of wireless remote transmission supersonic wave metering device that supporting http protocol and method Download PDFInfo
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- CN109556667A CN109556667A CN201811147353.9A CN201811147353A CN109556667A CN 109556667 A CN109556667 A CN 109556667A CN 201811147353 A CN201811147353 A CN 201811147353A CN 109556667 A CN109556667 A CN 109556667A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
Abstract
The invention discloses a kind of wireless remote transmission supersonic wave metering device for supporting http protocol and methods.The present invention includes supersonic wave metering module, communication module, the module of RTC and task mechanism realization business function, memory module and LCD MODULE.Supersonic wave metering module by way of ultrasonic wave for calculating gas flow rate, to obtain gas volume；Communication module is used for transfer data information；Memory module is used to store the parameter of gauge table, the data of user read with gas data information and gauge table；LCD MODULE is for showing continuous data；RTC and task mechanism realize the module of business function for setting mission mode.The present invention can provide big data and create data basis, and can save the time and efforts of mass communication exploitation for Internet of Things, wisdom life, do more accurate metering and more perfect wisdom life scheme.
Description
Technical field
The present invention proposes a kind of wireless remote transmission supersonic wave metering device for supporting http protocol and method.
Background technique
The measuring principle of ultrasonic flowmeter is " time difference method ", and all-electronin is realized.One probe transmitting signal pass through tube wall,
Medium is received by another probe after reaching other side tube wall, obtains first flight time tAB, equally, second probe
Same transmitting signal is received by first probe, obtains second flight time tBA.Due to the shadow by fluid media (medium) flow velocity
It rings, the two is there are time difference Δ t, according to calculating the conversion relation it can be concluded that between flow velocity V and time difference Δ t, and then can be with
Obtain flow value Q.It can calculate in unit time t in conjunction with volume flow rate calculation formula according to gas flow rate, pass through pipeline section
Gas volume, to obtain gas volume:
Q=π * (D/2)2*V*t
In Internet era, the highest network communication protocol of popularity is http protocol.Standard universal is strong, supports letter
Single, Server Extension is convenient, and cross-platform degree is high, portable strong.It, can be light when metering device is transmitted using HTTP
Pine completes every agreement of the network transmission protocol, so that engineering staff be made to focus more on measurement service itself, improves metering product
Accuracy and stability.
In gas meter field, existing unlimited remote installed meter tool is passed through on the basis of various traditional mechanical diaphragm gauges
The communication technologys such as RF, GPRS, LTE or newest Lora, NB-IOT realize the relevant data of remote transmission meter amount and ginseng
Number realizes automatic coppying meter.But still there are more defects:
Diaphragm gauge traditional first there are measuring accuracies it is poor, easy to aging the defects of, and because its state do not have linearly
Relationship, digitized degree is low, thus lack electron assistant function, it is increasing with the demand gap of digitlization wisdom function.
Therefore, the ultrasonic wave all electronic gas meter, flow meter for making way for can solve the above problem is a kind of inevitable trend.
Secondly, either LTE or Lora, NB-IOT, are a kind of transmission modes, it then follows specific channel is compiled
Code rule.And data content, that is, information source, what is often used is all the data format of self-defining, is that proprietary information is compiled
Code standard.Under normal conditions, a set of coding can be formulated in the market by enterprise or gas industry and advised voluntarily according to business demand
Then, as source coding standard.That is, we during wireless transmission, we transmit data and just need at least two
Cover coding standard.Table tool is different, and feature is different, and the data class of transmission is also different, and the data structure contents of definition also can
It is numerous, respectively there is difference.Even has no correlation each other.On the other hand, the database format of server is in order to support
Webpage, the JSON structure often defined again using general convenient http protocol.
Therefore, the new function of the ultrasonic wave table tool of new technology, if automatically with information source format, table has client and server
The data structure at end requires to reconstruct.And according to the standard newly formulated, need to develop an application and service again completely, ability
The data for meeting ultrasonic wave gas meter upload.In this way, wasting a large amount of manpower and time cost.Also result in promotion measurement technology
Demand make way for the exploitations of various Content of Communication.
Summary of the invention
In view of the deficiencies of the prior art, it is an object of the present invention to provide a kind of wireless remote transmission ultrasonic waves for supporting http protocol
Metering device and method.
The present invention can solve two big defects of above-mentioned technical proposal: 1) by supersonic wave metering technology, solving tradition
The metering of diaphragm gauge machinery a plurality of types of deficiencies such as precision, data type, actual parameter, additional function.2) HTTP association
The data type of view+Json style provides unified criterion to message sink coding, and new technology new traffic scheme just only need to do increment and repair
Change, has a possibility that infinite expanding for the communication technology.Both big data can be provided and create number for Internet of Things, wisdom life
According to basis, and the time and efforts of mass communication exploitation can be saved, do more accurate metering and more perfect wisdom life scheme.
The technical solution adopted by the present invention to solve the technical problems is as follows:
Apparatus of the present invention include supersonic wave metering module, communication module, the mould of RTC and task mechanism realization business function
Block, memory module and LCD MODULE.Supersonic wave metering module is used to calculate gas flow rate by way of ultrasonic wave, thus
Obtain gas volume；Communication module is used for transfer data information；Memory module is used to storing the parameter of gauge table, user uses gas
The data that data information and gauge table are read；LCD MODULE is for showing continuous data；RTC and task mechanism realize industry
The module of business function is for setting mission mode.
A kind of wireless remote transmission supersonic wave metering implementation method for supporting http protocol, the specific steps are as follows:
Step 1. initializes supersonic wave metering device；
Priority of the step 2. according to task, poll checking device current task；
Current task includes timed task, single task；Timed task includes RTC timing meter reading task, timing storage combustion
Gas task, timing wheel display information task, timing acquiring combustion gas enable communication module using data task and timing and upload data
Task；RTC timing meter reading task includes the serial communication of same supersonic wave metering module, obtains the stream that supersonic wave metering module obtains
Measure relevant information；Timing storage combustion gas task refers to being read with gas data information and gauge table for each set time storage user
The data taken；Timing wheel display information task, which refers to, is showing current gas consumption data every the fixed cycle；Timing acquiring combustion gas
Refer to the use data every combustion gas in the fixed cycle using data task；Timing enables communication module upload data task and refers to
The data of metering device are uploaded every the fixed cycle；Single task includes the task of key transmitting, controlled valve transmitting
Task and fault identification after report task；
The judgement of timed task, the single task is checked by communications status mark；
The priority of the task is using time order and function as standard；
The timing enables communication module upload data task and is implemented as follows:
Metering device activates communication module first, the upload data information obtained from memory module, according to the task of upload
It chooses whether to encrypt before upload it is required that uploading data information；Then the serializing to data information progress HTTP+Json is uploaded
Encapsulation, then connection is established by communication module and server, the upload data information after encapsulation is sent to server.
Task is reported to be implemented as follows after the fault identification:
Metering device activates communication module first, and the fault data information that will acquire is reported to service by communication module
Device；According to mission requirements, fault data information chooses whether to encrypt before upload；Then HTTP+ is carried out to fault data information
The serializing of Json encapsulates, then establishes connection by communication module and server, and the fault data information after encapsulation is sent to
Server.
The fault data information of the upload is as follows by HTTP+Json serializing encapsulation:
Defined nucleotide sequenceization encapsulation structural body form: for data content and structure feature according to a group packet scale (one
It is a to upload in packet containing the number for freezing continuous data) classify, and specific definition, the format of definition are made to each classification
Exist in a manner of chained list.
During being complained to after data-frozen: the space json sent first according to the creation of the classification of group packet scale, and
And creation sends data packet chained list；Then whole freezing data packets that corresponding number is obtained inside memory module, by every group of number
It is sent in data packet chained list according to copying to；Subsequently according to the classification number of data mode (frozen_key), it is sequentially filled key
Type；In key type, according to the value number (frozen_key_Num) of key, each value of embedded key.To completion pair
The serializing of the space json member encapsulates.
Apparatus of the present invention course of work is as follows:
Firstly, initialization metering device, configures initial parameter and network parameter；
Secondly, the timer of RTC is switched every cycle T timing pip, triggering letter is sent by supersonic wave metering module
Number, signal excites energy converter by the energizing circuit built in metering device, and the timing chip record in supersonic wave metering module swashs
Time point and receiving time point are sent out, obtains the TOF flight time, and calculate the flow every cycle T, while obtaining metering shape
State.Flow and metering state are combined into continuous data.
Then, the serial ports of the Master Communications circuit built in supersonic wave metering module triggering metering device receives continuous data.
Supersonic wave metering module will repeat to send multiple continuous data, inform the current continuous data of Master Communications circuit.
MCU in Master Communications circuit can also actively be worked as from the module that RTC and task mechanism realize business function
The preceding time, to be matched to freezing data interval time point, triggering supersonic wave metering module reads continuous data, and stores.
The freezing data interval refers to that the data of metering device, which are carried out storage, every the fixed cycle freezes；
Supersonic wave metering module is in addition to timing obtains continuous data and is sent to the main control MCU and response master control of system
Except the reading order of MCU, the dormant state of low-power consumption is entered.
If RTC and task mechanism realize that the module of business function is matched to the time point for uploading data, Master Communications electricity
Communications status will be arranged in road.
If RTC and task mechanism realize that the module of business function detects the abnormality of table tool, metering device will be right
Abnormality setting mark, is also provided with the communications status mark of abnormality alarming.
The present invention has the beneficial effect that:
By the present invention in that completing low power dissipation design, same lithium electricity with high-performance low-power-consumption cost performance MCU chip appropriate
On the basis of the energy of pond, extend the service life of table；And by the powerful operational capability of high performance chips kernel, we also added
The common Encryption Algorithm of HTTP, guarantees the safety of internet of things data.Biggish RAM and ROM cell space, make http protocol
The larger problem of data volume is no longer prominent, and power consumption and space problem influence to reduce.
The present invention realizes teletransmission supersonic wave metering system and device by support http protocol, can improve measuring accuracy, from
And the grade of metering product is promoted, can also it facilitate in the more gas company's servers of access, in terms of reducing data server
Development task.Moreover, the method for all electronic digital processing of supersonic wave metering device, can be more advantageous to and obtain more signals
For analyzing, test data is accumulated.Meanwhile also Products Digital degree will be made higher, be conducive to the comprehensive digitlization of product
Upgrading extension, lays good basis to provide the user with more wisdom services.
The present invention supports the low-power consumption ultrasonic wave metering device of http protocol, and device, which has, actively periodically complains to and send announcement
The function of alert information.LTE, Lora or NB are either used, is all a kind of communication channel mode of high speed.In addition there are also RF and
GPRS channel fashion can be completed to communicate, but since transmission speed is slow, the data volume after HTTP encapsulation is big, delivery time mistake
It is long, do not have the effect of low-power consumption.
Detailed description of the invention
Fig. 1 is flow chart of the present invention；
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
As shown in Figure 1, apparatus of the present invention include supersonic wave metering module, communication module, RTC and task mechanism realize business
The module of function, memory module and LCD MODULE.Supersonic wave metering module by way of ultrasonic wave for calculating gas
Flow velocity, to obtain gas volume；Communication module is used for transfer data information；Memory module be used for store gauge table parameter,
The data of user read with gas data information and gauge table；LCD MODULE is for showing continuous data；RTC and task
Mechanism realizes the module of business function for setting mission mode.
A kind of wireless remote transmission supersonic wave metering implementation method for supporting http protocol, the specific steps are as follows:
Step 1. initializes supersonic wave metering device；
Priority of the step 2. according to task, poll checking device current task；
Current task includes timed task, single task；Timed task includes RTC timing meter reading task, timing storage combustion
Gas task, timing wheel display information task, timing acquiring combustion gas enable communication module using data task and timing and upload data
Task；RTC timing meter reading task includes the serial communication of same supersonic wave metering module, obtains the stream that supersonic wave metering module obtains
Measure relevant information；Timing storage combustion gas task refers to being read with gas data information and gauge table for each set time storage user
The data taken；Timing wheel display information task, which refers to, is showing current gas consumption data every the fixed cycle；Timing acquiring combustion gas
Refer to the use data every combustion gas in the fixed cycle using data task；Timing enables communication module upload data task and refers to
The data of metering device are uploaded every the fixed cycle；Single task includes the task of key transmitting, controlled valve transmitting
Task and fault identification after report task；
The judgement of timed task, the single task is checked by communications status mark；
The priority of the task is using time order and function as standard；
The timing enables communication module upload data task and is implemented as follows:
Metering device activates communication module first, the upload data information obtained from memory module, according to the task of upload
It chooses whether to encrypt before upload it is required that uploading data information；Then the serializing to data information progress HTTP+Json is uploaded
Encapsulation, then connection is established by communication module and server, the upload data information after encapsulation is sent to server.
Task is reported to be implemented as follows after the fault identification:
Metering device activates communication module first, and the fault data information that will acquire is reported to service by communication module
Device；According to mission requirements, fault data information chooses whether to encrypt before upload；Then HTTP+ is carried out to fault data information
The serializing of Json encapsulates, then establishes connection by communication module and server, and the fault data information after encapsulation is sent to
Server.
The fault data information of the upload is as follows by HTTP+Json serializing encapsulation:
Defined nucleotide sequenceization encapsulation structural body form: for data content and structure feature according to a group packet scale (one
It is a to upload in packet containing the number for freezing continuous data) classify, and specific definition, the format of definition are made to each classification
Exist in a manner of chained list.
During being complained to after data-frozen: the space json sent first according to the creation of the classification of group packet scale, and
And creation sends data packet chained list；Then whole freezing data packets that corresponding number is obtained inside memory module, by every group of number
It is sent in data packet chained list according to copying to；Subsequently according to the classification number of data mode (frozen_key), it is sequentially filled key
Type；In key type, according to the value number (frozen_key_Num) of key, each value of embedded key.To completion pair
The serializing of the space json member encapsulates.
Apparatus of the present invention course of work is as follows:
Firstly, initialization metering device, configures initial parameter and network parameter；
Secondly, the timer of RTC is switched every cycle T timing pip, triggering letter is sent by supersonic wave metering module
Number, signal excites energy converter by the energizing circuit built in metering device, and the timing chip record in supersonic wave metering module swashs
Time point and receiving time point are sent out, obtains the TOF flight time, and calculate the flow every cycle T, while obtaining metering shape
State.Flow and metering state are combined into continuous data.
Then, the serial ports of the Master Communications circuit built in supersonic wave metering module triggering metering device receives continuous data.
Supersonic wave metering module will repeat to send multiple continuous data, inform the current continuous data of Master Communications circuit.
MCU in Master Communications circuit can also actively be worked as from the module that RTC and task mechanism realize business function
The preceding time, to be matched to freezing data interval time point, triggering supersonic wave metering module reads continuous data, and stores.
The freezing data interval refers to that the data of metering device, which are carried out storage, every the fixed cycle freezes；
Supersonic wave metering module is in addition to timing obtains continuous data and is sent to the main control MCU and response master control of system
Except the reading order of MCU, the dormant state of low-power consumption is entered.
If RTC and task mechanism realize that the module of business function is matched to the time point for uploading data, Master Communications electricity
Communications status will be arranged in road.
If RTC and task mechanism realize that the module of business function detects the abnormality of table tool, metering device will be right
Abnormality setting mark, is also provided with the communications status mark of abnormality alarming.
Claims (6)
1. a kind of wireless remote transmission supersonic wave metering device for supporting http protocol, it is characterised in that including supersonic wave metering module,
Communication module, RTC and task mechanism realize the module of business function, memory module and LCD MODULE；Supersonic wave metering mould
Block by way of ultrasonic wave for calculating gas flow rate, to obtain gas volume；Communication module is used for transfer data information；
Memory module is used to store the parameter of gauge table, the data of user read with gas data information and gauge table；Liquid crystal display
Module is for showing continuous data；RTC and task mechanism realize the module of business function for setting mission mode.
2. a kind of wireless remote transmission supersonic wave metering device for supporting http protocol according to claim 1, it is characterised in that
The device course of work is as follows:
Firstly, initialization metering device, configures initial parameter and network parameter；
Secondly, the timer of RTC is switched every cycle T timing pip, trigger signal, letter are sent by supersonic wave metering module
Number energy converter is excited by the energizing circuit built in metering device, the timing chip in supersonic wave metering module records firing time
Point and receiving time point obtain the TOF flight time, and calculate the flow every cycle T, while obtaining metering state；Flow
Continuous data is combined into metering state；
Then, the serial ports of the Master Communications circuit built in supersonic wave metering module triggering metering device receives continuous data；Ultrasound
Wave metering module will repeat to send multiple continuous data, inform the current continuous data of Master Communications circuit；
When MCU in Master Communications circuit also actively can obtain current from the module that RTC and task mechanism realize business function
Between, to be matched to freezing data interval time point, triggering supersonic wave metering module reads continuous data, and stores；
The freezing data interval refers to that the data of metering device, which are carried out storage, every the fixed cycle freezes；
Supersonic wave metering module is in addition to timing obtains continuous data and is sent to the main control MCU of system and responds main control MCU
Except reading order, the dormant state of low-power consumption is entered；
If RTC and task mechanism realize that the module of business function is matched to the time point for uploading data, Master Communications circuit will
Communications status is set；
If RTC and task mechanism realize that the module of business function detects the abnormality of table tool, metering device will be to exception
State setting mark, is also provided with the communications status mark of abnormality alarming.
3. a kind of realization side of wireless remote transmission supersonic wave metering device for supporting http protocol according to claim 1 or 2
Method, it is characterised in that specific step is as follows:
Step 1. initializes supersonic wave metering device；
Priority of the step 2. according to task, poll checking device current task；
Current task includes timed task, single task；Timed task includes RTC timing meter reading task, timing storage combustion gas times
Business, timing wheel display information task, timing acquiring combustion gas enable communication module using data task and timing and upload data task；
RTC timing meter reading task includes the serial communication of same supersonic wave metering module, obtains the flow phase that supersonic wave metering module obtains
Close information；Timing storage combustion gas task refers to being read with gas data information and gauge table for each set time storage user
Data；Timing wheel display information task, which refers to, is showing current gas consumption data every the fixed cycle；Timing acquiring combustion gas uses
Data task refers to the use data every combustion gas in the fixed cycle；Timing enable communication module upload data task refer to every
Fixed cycle uploads the data of metering device；Single task includes times of the task of key transmitting, controlled valve transmitting
Task is reported after business and fault identification；
The judgement of timed task, the single task is checked by communications status mark；
The priority of the task is using time order and function as standard.
4. a kind of implementation method of wireless remote transmission supersonic wave metering device for supporting http protocol according to claim 3,
It is implemented as follows it is characterized in that the timing enables communication module upload data task:
Metering device activates communication module first, the upload data information obtained from memory module, according to upload mission requirements,
Data information is uploaded to choose whether to encrypt before upload；Then the serializing for uploading data information progress HTTP+Json is encapsulated,
Connection is established by communication module and server again, the upload data information after encapsulation is sent to server.
5. a kind of implementation method of wireless remote transmission supersonic wave metering device for supporting http protocol according to claim 4,
It is characterized in that reporting task to be implemented as follows after the fault identification:
Metering device activates communication module first, and the fault data information that will acquire is reported to server by communication module；Root
According to mission requirements, fault data information chooses whether to encrypt before upload；Then HTTP+Json's is carried out to fault data information
Serializing encapsulation, then connection is established by communication module and server, the fault data information after encapsulation is sent to server.
6. a kind of implementation method of wireless remote transmission supersonic wave metering device for supporting http protocol according to claim 5,
It is characterized in that the fault data information of the upload is as follows by HTTP+Json serializing encapsulation:
The structural body form of defined nucleotide sequenceization encapsulation: the content and structure feature of data is divided according to a group packet scale
Class, and specific definition is made to each classification, the format of definition exists in a manner of chained list；
During being complained to after data-frozen: the space json sent first according to the creation of the classification of group packet scale, and create
It builds and sends data packet chained list；Then whole freezing data packets that corresponding number is obtained inside memory module, every group of data are copied
Shellfish is into transmission data packet chained list；Subsequently according to the classification number of data mode, it is sequentially filled key type；In key type,
According to the value number of key, each value of embedded key；To complete the serializing encapsulation to the space json member.
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Application publication date: 20190402 |