CN104574906A - Concentrator for remote meter reading and data acquiring system for remote meter reading - Google Patents
Concentrator for remote meter reading and data acquiring system for remote meter reading Download PDFInfo
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- CN104574906A CN104574906A CN201510038168.6A CN201510038168A CN104574906A CN 104574906 A CN104574906 A CN 104574906A CN 201510038168 A CN201510038168 A CN 201510038168A CN 104574906 A CN104574906 A CN 104574906A
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Abstract
The invention provides a concentrator for remote meter reading and a data acquiring system for the remote meter reading, and relates to the technical field of communication. The concentrator for the remote meter reading adopts a compound sending way, a wireless module and a bus module which are respectively connected with a master control module are arranged, the wireless module can be used for sending a wireless query instruction to acquirers installed in a distributed manner according to distribution states of the acquirers when the acquirers are required for use (the acquirers are used for querying meters), and the bus module can be used for sending a bus query instruction to the acquirers installed in centralization, and then the concentrator is capable of being contacted with the acquirers in a relatively suitable communication mode aiming at new modes; and the communication effect is guaranteed while the cost of the concentrator is controlled.
Description
Technical field
The present invention relates to communication technical field, in particular to the concentrator for remote meter reading and the data acquisition system (DAS) for remote meter reading.
Background technology
Be unable to do without the consumption to resources such as water, gas and electricity in daily life, the water meter in family and gas meter Auto-counting, to form water energy, the gas consumption total amount of this family in certain a period of time.The difference of the result that water conservancy company and natural gas companies were checked meter according to the last time and this result of checking meter calculates water energy, gas consumption in a period of time, and then determines charge according to unit price.
Current domestic residential quarter user's counting cost by gas meter mode mainly contain the person of checking meter visit manual to check meter, the person of checking meter hold POS visit check meter, IC-card table etc.Although IC-card table solves charging problem preferably, unresolved problem of checking meter, a lot of enterprise still has to, and arranging manually visits checks meter.The person of checking meter visits the cycle of checking meter be bimester or many months, need to drop into a large amount of human and material resources, and real-time property is poor, is difficult to the consumption Changing Pattern according to meter reading data analysis client and supply and marketing rate.Along with the growth of urban population, the increase of skyscraper, and the increase of housing vacancy rate, the workload of checking meter of manually visiting increases day by day, and operation management expense progressively increases, and is easy to occur that leakage is copied, estimate the problem of copying.In addition, resident's privacy aware is more and more stronger, checking meter and producing conflicts gradually, disliking visiting, also making visits check meter more and more difficult.Under this background, wireless long-distance meter-reading technology is arisen at the historic moment, and rises at home.
As shown in Figure 1, wireless long-distance meter-reading concentrator (abbreviation concentrator) is for multiple collector 12 (water yield that collector uses for gathering user in wireless long-distance meter-reading system (abbreviation remote transmitting system), or amount of natural gas) carry out data acquisition, storage, transmission, and forward the checking meter of remote transmitting system to collector, inquire about, the electronic installation of optimum configurations or control command signal, be made up of functional modules such as main control module 14, GPRS module 13, wireless modules 15.Wherein micro power radio module is used for communicating with the collector of telemetering meter, and acquisition tables counts, and arranges table meter parameter, the action of control table meter; Also for communicating with radio meter register POS, the table stored being counted be transferred to POS in concentrator.GPRS module connects the remote communication server in remote transmitting system by GPRS network, obtain that remote transmitting system is checked meter, inquired about, optimum configurations or control command, and collector data are transferred to remote transmitting system 11.
But in actual use, the installation site of collector is not fixing, and the dense degree of collector is different in other words, and then when causing using wireless module and collector to carry out communication, communication efficiency is very poor sometimes.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to be provided for the concentrator of remote meter reading and the data acquisition system (DAS) for remote meter reading, to strengthen the communication effect of concentrator and collector.
First aspect, embodiments provides the concentrator for remote meter reading, comprising: main control module, wireless module and bus module;
Main control module is electrically connected with wireless module and bus module respectively, for generating wireless poll instruction and bus query statement according to the collector distribution pattern obtained in advance;
Wireless module, sends wireless poll instruction for the collector installed to dispersion;
Bus module, for sending bus query statement to the collector installed concentratedly.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, data partitioning unit, data transmission unit, packet generation unit that described wireless module comprises transmission data length judging unit and is connected with transmission data length judging unit respectively, described data partitioning unit is connected with described data transmission unit;
Send data length judging unit, for judging whether wireless poll instruction or the data length to the image data of wireless POS module transmission are greater than default standard length;
Data partitioning unit, if data length judging unit is judged as YES, then according to the Data Segmentation mode preset, wireless poll instruction or image data are divided into multiple data to be sent, and the length of data to be sent is all no more than default standard length;
Multiple data encapsulation to be sent if data length judging unit is judged as NO, then for wireless poll instruction or image data are encapsulated as packet to be sent, or is packet to be sent by packet generation unit;
Data transmission unit, for by Packet Generation to be sent to wireless POS module or the collector of specifying.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, described wireless module also comprises reception data length judging unit and information feedback unit;
Receive data length judging unit, for judging whether the data length of the effective data packets that wireless POS module or collector send is greater than default standard length;
Information feedback unit, is judged as YES if receive data length judging unit, then sends the instruction again sending effective data packets to wireless POS module or collector.
In conjunction with first aspect, embodiments provide the third possible embodiment of first aspect, wherein, described main control module also comprises query statement generation unit, for checking meter the cycle every predetermined, generates wireless poll instruction and bus query statement.
In conjunction with first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, described main control module also comprises local parameter setting unit, adjusts local clock for the parameters sent according to host computer, checks meter the cycle.
Second aspect, the embodiment of the present invention additionally provides the data acquisition system (DAS) for remote meter reading, comprises the concentrator for remote meter reading, also comprises the webserver,
The described concentrator for remote meter reading also comprises the GPRS module be connected with main control module, the registration packet transmitting element that described GPRS module comprises timing unit and is connected with timing unit, and the described webserver comprises enquiry module and instruction issuing module;
Timing unit, for generating communication instruction every predetermined time;
Registration packet transmitting element, if get communication instruction, then sends the identity registration bag of local concentrator to the webserver;
Enquiry module, for inquiring about whether there be the instruction corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module, instruction corresponding with identity registration bag in instruction issue queue.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein,
The described webserver also comprises communication connection module, if enquiry module does not inquire the instruction corresponding with identity registration bag, or after instruction corresponding with identity registration bag in instruction issuing module instruction issue queue, disconnect the connection of the concentrator corresponding with identity registration bag.
In conjunction with second aspect, embodiments provide the embodiment that the second of second aspect is possible, wherein, the described webserver also comprises the first continuous data judge module, and described main control module also comprises alarm unit;
First continuous data judge module, for judging that table that collector sends counts whether lower than the first reference threshold preset;
Alarm module, if the first continuous data judge module is judged as YES, then sends the too low alerting signal of surplus to collector.
In conjunction with second aspect, embodiments provide the third possible embodiment of second aspect, wherein, the described webserver also comprises the second continuous data judge module, and described main control module also comprises valve closing unit;
Second continuous data judge module, for judging that table that collector sends counts whether lower than the second reference threshold preset;
Valve closing unit, if the second continuous data judging unit is judged as YES, then generates valve closing instruction, in the table valve making appointment collector institute close correspondence.
In conjunction with second aspect, embodiments provide the 4th kind of possible embodiment of second aspect, wherein, the described webserver also comprises threshold generation module, for generating the first reference threshold or the second reference threshold according to the remaining sum amount of the appointment collector obtained in advance.
The concentrator for remote meter reading that the embodiment of the present invention provides, adopt the send mode of compound, different from dense degree of installing due to only collector of the prior art, and then cause, sometimes wireless module is compared with the poor effect of collector communication, it is by being provided with the wireless module and bus module that are connected with main control module respectively, and according to the distribution of collector when needing to use collector (using collector to carry out showing the inquiry of meter), the collector can installed to dispersion by wireless module sends wireless poll instruction, and send bus query statement by bus module to the collector installed concentratedly, and then when making concentrator and collector carry out communication, can be contacted by more suitably communication modes for new, while controlling concentrator cost, ensure that communication effect.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows the structural representation of concentrator in correlation technique;
Fig. 2 show the embodiment of the present invention be provided for the basic structural relationships figure of the concentrator of remote meter reading;
Fig. 3 show the embodiment of the present invention be provided for the detailed structure graph of a relation of the concentrator of remote meter reading;
Fig. 4 show the embodiment of the present invention be provided for the basic structural relationships figure of the data acquisition system (DAS) of remote meter reading.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
The embodiment of the present invention 1 provides the concentrator for remote meter reading, as shown in Figures 2 and 3, comprising: main control module 101, wireless module 103 and bus module 102;
Main control module 101 is electrically connected with wireless module 103 and bus module 102 respectively, for generating wireless poll instruction and bus query statement according to collector 104 distribution pattern obtained in advance;
Wireless module 103, sends wireless poll instruction for the collector 104 installed to dispersion;
Bus module 102, for sending bus query statement to the collector 104 installed concentratedly.
It should be noted that, collector 104 is counted (ammeter, water meter or gas meter) with each table and is arranged, and usual each table meter needs to arrange a collector 104 and matches with it.When concentrator needs to carry out reading time (when namely needing to carry out tabling look-up), then generated by wireless module 103 or bus module 102, and send corresponding query statement to the collector 104 of specifying, its real-time reading just can be sent to concentrator by collector 104 after receiving query statement, certainly, also the identifying information of this collector 104 (identity information) can be sent to concentrator, so that concentrator carries out recording and reporting when transmission reading.
In correlation technique, the placement rule (distribution mode) of collector 104 is unfixed, is in the family of installation and the user disperseed sometimes, sometimes, is then concentrated putting together (using table case or table room).Can predict, wireless telecommunications be subject to signal disturbing, shielding situation comparatively serious, only when communication distance is nearer, its laser propagation effect can have certain guarantee, therefore the acquisition mode of simple wireless telecommunications is sometimes cannot the Obtaining Accurate data that provide to collector 104.Therefore, when concrete use, different communication modes can be selected according to the distribution situation of collector 104, carry out corresponding data interaction.During concrete use, as, can in advance by mode that bus connects, by shifting to an earlier date cable laying, connect main control module 101 and collector 104 (prerequisite being connected bus module 102 and collector 104 by cable laying is collector 104 is concentrate to be placed in table case or table room), and then the precision of Signal transmissions is ensure that by the mode using bus to connect, disperse the region of installing can use the mode of wireless telecommunications, to ensure lower communication cost and good communication quality at collector 104.
Concrete, bus module 102 can use M-BUS bus, or the bus of other types carries out the transmission of data and signal.Further, adopt 485 communication modes, communication efficiency is better, more reliable and more stable.
The communication module that wireless module 103 normally adopts wireless communication technology to develop, relative to the bus module 102 that bus must be used to carry out data transmission, its working method is more flexible, but when using wireless communication technology to carry out data and command, the loss of data is easily caused because of the external interference be subject to, or cannot transmit (usually transmitting terminal and receiving end apart from each other in, the situation of loss of data can be there is), therefore, transmitting terminal and receiving end apart from each other in, the mode of signal transfer can be adopted, adopt and repeatedly transmit, the data sent by transmitting terminal send receiving end to.
When use wireless module 103 carries out data transmission, because wireless module 103 determines the effective coverage range of radio communication, determine distribution range and the quantity of the table meter collector 104 that it can manage, and at wireless module 103, after collector 104 and wireless POS module (radio meter register POS) all determine riding position, time three carries out data communication, packet is longer, wherein one or more bytes occur that the probability of error code is higher, therefore, packet splitting and reorganizing algorithm can be adopted to carry out Wireless Data Transmission, improve the reliability of data communication, reduce whole bag packet loss.
Concrete, data partitioning unit 106, data transmission unit 108, packet generation unit 107 that wireless module 103 comprises transmission data length judging unit 105 and is connected with transmission data length judging unit 105 respectively, data partitioning unit 106 is connected with data transmission unit 108;
Send data length judging unit 105, for judging whether wireless poll instruction or the data length to the image data of wireless POS module transmission are greater than default standard length;
Data partitioning unit 106, if data length judging unit is judged as YES, then according to the Data Segmentation mode preset, wireless poll instruction or image data are divided into multiple data to be sent, and the length of data to be sent is all no more than default standard length;
Multiple data encapsulation to be sent if data length judging unit is judged as NO, then for wireless poll instruction or image data are encapsulated as packet to be sent, or is packet to be sent by packet generation unit 107;
Data transmission unit 108, for by Packet Generation to be sent to wireless POS module or the collector 104 of specifying.
By the judgement of transmission data length judging unit 105 and the work of data partitioning unit 106, can be enough little data segment by the data cutting do not sent, in the process that data send, even if certain partial data goes wrong, then retransmit this part data, can not impact data entirety.
Data (send the content of checking meter when sending to collector 104, or when checking meter to the transmission of wireless POS module the reading got), the whole bag packet loss of packet can be reduced by carrying out fractionation to data, improve the reliability of data communication.When splitting data, according to the standard length preset, statistics can be divided into multiple length and equal standard length part, or statistics is equally divided into many parts.As the statistics that length is 27 bytes, standard length is 10 bytes.Can divide according to the form of 10,10,7, also can divide according to the form of 9,9,9, the former is convenient to the segmentation of data, and the latter more lays particular emphasis on the lifting of data reliability.And by reducing the length of packet, penetration capacity and the communication distance of signal can be improved when using radio-frequency communication (RF).
More specifically, if what the length of the packet sent limited is too small at every turn, and cause needing repeatedly to send and can completing (as reporting a meter reading) with this complete data communication, then resource can be wasted equally, therefore, by arranging the size of standard length, the working method of the data partitioning unit 106 be operated in varying environment (distance of collector 104 and concentrator, or the distance of wireless POS module and concentrator) can be controlled.Also can be when wireless module 103 is with wireless POS module communication, and time wireless module 103 carries out communication with collector 104, be the divided data bag of different length by Data Segmentation, in each divided data bag, carry subpackage number and subpackage sequence number.
After receiving end receives data, can also verify whether the packet received is effective by the mode increasing verification, to prevent the maloperation of extraneous attack and transmitting terminal namely, wireless module 103 also comprises reception data length judging unit and information feedback unit;
Receive data length judging unit, for judging whether the data length of the effective data packets that wireless POS module or collector 104 send is greater than default standard length;
Information feedback unit, is judged as YES if receive data length judging unit, then sends to wireless POS module or collector 104 instruction again sending effective data packets.
Receive data length judging unit, judge whether this packet have passed through segmentation before sending according to the subpackage number of carrying in effective data packets after receiving the data, and according to subpackage sequence number, data are recombinated.If the length of effective data packets has exceeded restriction, then illustrate that this packet may be that malice sends or is interfered, then should notify that transmitting terminal sends again.
It should be noted that, if the data to be sent be through after segmentation of carrying in each packet to be sent, time then by data encapsulation compositional data bag to be sent, except carrying data to be sent in each divided data bag, also should carry subpackage sequence number, with when being combined by multiple divided data bag, directly built-up sequence can be determined.
Time main control module 101 generates table-look-up instruction at every turn, it can be the instruction according to host computer (webserver), and automatically generate, also can be each predetermined tabling look-up the cycle (one month, or several weeks) automatic generation table-look-up instruction, to make collector 104 can complete the work table of specifying being carried out to reading, and be convenient to the determination that wireless POS module carries out charging.
Main control module 101 also comprises query statement generation unit, for checking meter the cycle every predetermined, generates wireless poll instruction and bus query statement.
The canonical parameter that main control module 101 can send according to host computer adjusts local parameter, and concrete, main control module 101 also comprises local parameter setting unit, adjusts local clock for the parameters sent according to host computer, checks meter the cycle.
Certainly, main control module 101 according to the instruction of host computer, can also report local parameter, so that host computer carries out real-time detection and control to host computer.Concrete, the instruction that arranges that main control module 101 can send according to host computer arranges concentrator parameter, comprises clock, automatic data logging cycle etc.Wherein clock is used as timing initial value, and the automatic data logging cycle is used for automatic data logging according to plan.According to the query statement that host computer (remote transmitting system) sends, concentrator parameter, comprising clock, automatic data logging cycle etc. is uploaded to remote transmitting system, checks for remote transmitting system.Further, the steering order sent according to remote transmitting system, can think highly of in domination set open, empty collector 104 address code (replacement), clear history checks meter record etc.
The concentrator for remote meter reading that the embodiment of the present invention 1 provides sends data length judging unit 105 and data partitioning unit 106 by being provided with, can split sending to the data of wireless POS module and collector 104, less to ensure the length of the data subpackage sent, even if there is error code in certain data subpackage, also only this data subpackage need be retransmitted, also overall data bag can not be affected; Also by being provided with wireless module 103 and bus module 102, make selectively to improve communication security and communication effect by the send mode of compound.
The embodiment of the present invention 2 provides the data acquisition system (DAS) for remote meter reading, as in Figure 2-4, comprises the concentrator for remote meter reading that embodiment 1 provides, also comprises the webserver,
Concentrator 111 for remote meter reading also comprises the GPRS module be connected with main control module 101, the registration packet transmitting element 1112 that GPRS module comprises timing unit 1111 and is connected with timing unit 1111, the webserver 110 comprises enquiry module 1102 and instruction issuing module 1101;
Timing unit 1111, for generating communication instruction every predetermined time;
Registration packet transmitting element 1112, if get communication instruction, then sends the identity registration bag of local concentrator 111 to the webserver 110;
Enquiry module 1102, for inquiring about whether there be the instruction corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module 1101, instruction corresponding with identity registration bag in instruction issue queue.
The webserver 110 is manager provide network-side for managing concentrator 111 and collector 104.Wherein, GPRS module is the module that concentrator 111 is used for getting in touch with the webserver 110, and it is responsible for the task of carrying out data interaction with the webserver 110.
The webserver 110, after receiving the identity registration bag that GPRS module sends, needs to check the instruction whether having and need to assign, if had, then can pass on corresponding steering order by instruction issuing module 1101 to GPRS module.
During use, the quantity of concentrator 111 is quite huge, a large amount of concentrators 111 is distributed with as needed in each community, each city includes again a large amount of communities, therefore, when concentrator 111 carries out communication with the webserver 110, need the quantity by controlling the concentrator 111 being in connection status with the webserver 110 simultaneously, ensure that the webserver 110 needs the instruction of passing on to concentrator 111 to assign fast, and ensure that concentrator 111 needs the data uploaded to the webserver 110 to send timely.Therefore, any one concentrator 111 should not keep with the webserver 110 being connected (can delay other concentrators 111 like this and carry out data interaction with the webserver 110) for a long time.
Thus, the webserver 110 also comprises communication connection module, if enquiry module 1102 does not inquire the instruction corresponding with identity registration bag, or after instruction corresponding with identity registration bag in instruction issuing module 1101 instruction issue queue, disconnect the connection of the concentrator 111 corresponding with identity registration bag.
It should be noted that, the communication instruction that timing unit 1111 generated every predetermined time, control the frequency of interaction of GPRS module and the webserver 110, when the quantity of concentrator 111 is excessive, what can suitably be arranged this predetermined time is larger, also this predetermined time (frequency of utilization as certain concentrator 111 is higher, then should turn this predetermined time down) can be adjusted according to the frequency of utilization of the concentrator 111 of zones of different.
Concrete, the webserver 110 also comprises the first continuous data judge module, and main control module 101 also comprises alarm unit;
First continuous data judge module, for judging that table that collector 104 sends counts whether lower than the first reference threshold preset;
Alarm module, if the first continuous data judge module is judged as YES, then sends the too low alerting signal of surplus to collector 104.
Namely in time detecting that the table sent of collector 104 counts all the other quantity not sufficients of display, then user should be pointed out to supplement with money by alarm module, in order to avoid run into the problem that valve is closed in arrearage.On the other hand, except the alarm condition that surplus is too low, be exactly the actual situation that should stop supplying in addition, namely the webserver 110 also comprises the second continuous data judge module, and main control module 101 also comprises valve closing unit;
Second continuous data judge module, for judging that table that collector 104 sends counts whether lower than the second reference threshold preset;
Valve closing unit, if the second continuous data judging unit is judged as YES, then generates valve closing instruction, in make appointment collector 104 the table valve of closedowns correspondence.
It should be noted that, the numerical value of the second reference threshold should be greater than the numerical value of the first reference threshold.When the table that the collector 104 of certain user sends counts the second reference threshold lower than presetting, then illustrate that the consumption that this user buys depletes completely, now should control corresponding valve closing, to stop supply.
Further, the webserver 110 also comprises threshold generation module, for generating the first reference threshold or the second reference threshold according to the remaining sum amount of the appointment collector 104 obtained in advance.
What store each user in the database of the webserver 110 can the information such as use amount, reading.Therefore, the first reference threshold or the second reference threshold can be determined by the remaining sum amount of each table meter.
Except above-mentioned functions, concentrator 111 can also issue administrative table meter address code by the webserver 110 (remote transmitting system, host computer) to concentrator 111.Every platform concentrator 111 can only be corresponding with its administrative table meter table meter address code collector 104 communicate, so under deliver meter address code and determine the range of management (namely determining code, identity code that certain concentrator 111 can carry out the collector 104 of exchanges data) of concentrator 111.Can also be send concentrator 111 administrative table meter address code, so that remote transmitting system carries out managing, checking to remote transmitting system; The real-time batch meter reading instruction that concentrator 111 can also send according to remote transmitting system, or the plan of checking meter stored in advance, gather the data (comprising meter reading, parameter, state) of administrative table meter one by one, and preserve these data, carry out data interaction or data query so that follow-up.The meter reading instruction that concentrator 111 also can send according to remote transmitting system, gathers the data of specifying table meter (specifying by table address code).Concentrator 111 according to remote transmitting system meter reading instruction (batch is checked meter or specified and checks meter), can also count the table collected and is uploaded to remote transmitting system one by one.The instruction that arranges that also can send according to remote transmitting system arranges table meter parameter, comprises warning amount, supplements limitation etc. with money.Wherein warning amount is used for carrying out surplus deficiency and reports to the police, points out, and when surplus is measured lower than warning, table meter valve is closed automatically, and shows over the display; Supplement limitation with money for limiting maximum purchase volume.Meanwhile, the query statement that concentrator 111 can send according to remote transmitting system, each table meter parameter collected, comprises warning amount, supplements limitation etc. with money, be uploaded to remote transmitting system, so that remote transmitting system carries out checking and controlling.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. for the concentrator of remote meter reading, it is characterized in that, comprising: main control module, wireless module and bus module;
Main control module is electrically connected with wireless module and bus module respectively, for generating wireless poll instruction and bus query statement according to the collector distribution pattern obtained in advance;
Wireless module, sends wireless poll instruction for the collector installed to dispersion;
Bus module, for sending bus query statement to the collector installed concentratedly.
2. the concentrator for remote meter reading according to claim 1, it is characterized in that, data partitioning unit, data transmission unit, packet generation unit that described wireless module comprises transmission data length judging unit and is connected with transmission data length judging unit respectively, described data partitioning unit is connected with described data transmission unit;
Send data length judging unit, for judging whether wireless poll instruction or the data length to the image data of wireless POS module transmission are greater than default standard length;
Data partitioning unit, if data length judging unit is judged as YES, then according to the Data Segmentation mode preset, wireless poll instruction or image data are divided into multiple data to be sent, and the length of data to be sent is all no more than default standard length;
Multiple data encapsulation to be sent if data length judging unit is judged as NO, then for wireless poll instruction or image data are encapsulated as packet to be sent, or is packet to be sent by packet generation unit;
Data transmission unit, for by Packet Generation to be sent to wireless POS module or the collector of specifying.
3. the concentrator for remote meter reading according to claim 2, is characterized in that, described wireless module also comprises reception data length judging unit and information feedback unit;
Receive data length judging unit, for judging whether the data length of the effective data packets that wireless POS module or collector send is greater than default standard length;
Information feedback unit, is judged as YES if receive data length judging unit, then sends the instruction again sending effective data packets to wireless POS module or collector.
4. the concentrator for remote meter reading according to claim 1, is characterized in that, described main control module also comprises query statement generation unit, for checking meter the cycle every predetermined, generates wireless poll instruction and bus query statement.
5. the concentrator for remote meter reading according to claim 4, is characterized in that, described main control module also comprises local parameter setting unit, adjusts local clock for the parameters sent according to host computer, checks meter the cycle.
6., for the data acquisition system (DAS) of remote meter reading, comprise the concentrator for remote meter reading described in claim 1-5, it is characterized in that, also comprise the webserver,
The described concentrator for remote meter reading also comprises the GPRS module be connected with main control module, the registration packet transmitting element that described GPRS module comprises timing unit and is connected with timing unit, and the described webserver comprises enquiry module and instruction issuing module;
Timing unit, for generating communication instruction every predetermined time;
Registration packet transmitting element, if get communication instruction, then sends the identity registration bag of local concentrator to the webserver;
Enquiry module, for inquiring about whether there be the instruction corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module, instruction corresponding with identity registration bag in instruction issue queue.
7. the data acquisition system (DAS) for remote meter reading according to claim 6, is characterized in that,
The described webserver also comprises communication connection module, if enquiry module does not inquire the instruction corresponding with identity registration bag, or after instruction corresponding with identity registration bag in instruction issuing module instruction issue queue, disconnect the connection of the concentrator corresponding with identity registration bag.
8. the data acquisition system (DAS) for remote meter reading according to claim 6, is characterized in that, the described webserver also comprises the first continuous data judge module, and described main control module also comprises alarm unit;
First continuous data judge module, for judging that table that collector sends counts whether lower than the first reference threshold preset;
Alarm module, if the first continuous data judge module is judged as YES, then sends the too low alerting signal of surplus to collector.
9. the data acquisition system (DAS) for remote meter reading according to claim 8, is characterized in that, the described webserver also comprises the second continuous data judge module, and described main control module also comprises valve closing unit;
Second continuous data judge module, for judging that table that collector sends counts whether lower than the second reference threshold preset;
Valve closing unit, if the second continuous data judging unit is judged as YES, then generates valve closing instruction, in the table valve making appointment collector institute close correspondence.
10. the data acquisition system (DAS) for remote meter reading according to claim 9, it is characterized in that, the described webserver also comprises threshold generation module, for generating the first reference threshold or the second reference threshold according to the remaining sum amount of the appointment collector obtained in advance.
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| CN104954499A (en) * | 2015-07-28 | 2015-09-30 | 夏浩嘉 | Water meter monitoring method, device and system |
| CN105894774A (en) * | 2016-04-20 | 2016-08-24 | 蔡文果 | Meter reading method, device and system |
| CN108198341A (en) * | 2017-12-26 | 2018-06-22 | 金卡智能集团股份有限公司 | Internet of Things instrument settlement method and system based on table end, the double settlement modes in backstage |
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| CN112286962A (en) * | 2020-10-26 | 2021-01-29 | 积成电子股份有限公司 | Electricity consumption information acquisition terminal meter reading success rate statistical method and system |
| CN113810223A (en) * | 2021-08-20 | 2021-12-17 | 佳源科技股份有限公司 | Method for realizing remote collection of HPLC maintenance logs |
| CN114023060A (en) * | 2021-11-10 | 2022-02-08 | 国网江苏省电力有限公司营销服务中心 | Intelligent power consumption data acquisition and uploading method and system based on repeater |
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| CN104954499A (en) * | 2015-07-28 | 2015-09-30 | 夏浩嘉 | Water meter monitoring method, device and system |
| CN105894774A (en) * | 2016-04-20 | 2016-08-24 | 蔡文果 | Meter reading method, device and system |
| CN108198341A (en) * | 2017-12-26 | 2018-06-22 | 金卡智能集团股份有限公司 | Internet of Things instrument settlement method and system based on table end, the double settlement modes in backstage |
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| CN108198341B (en) * | 2017-12-26 | 2023-08-15 | 金卡智能集团股份有限公司 | Internet of things instrument settlement method and system based on meter end and background dual settlement modes |
| CN112286962A (en) * | 2020-10-26 | 2021-01-29 | 积成电子股份有限公司 | Electricity consumption information acquisition terminal meter reading success rate statistical method and system |
| CN112286962B (en) * | 2020-10-26 | 2023-06-02 | 积成电子股份有限公司 | Meter reading success rate statistics method and system for electricity consumption information acquisition terminal |
| CN113810223A (en) * | 2021-08-20 | 2021-12-17 | 佳源科技股份有限公司 | Method for realizing remote collection of HPLC maintenance logs |
| CN114023060A (en) * | 2021-11-10 | 2022-02-08 | 国网江苏省电力有限公司营销服务中心 | Intelligent power consumption data acquisition and uploading method and system based on repeater |
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