CN104574908A - Remote meter reading system - Google Patents
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- CN104574908A CN104574908A CN201510038253.2A CN201510038253A CN104574908A CN 104574908 A CN104574908 A CN 104574908A CN 201510038253 A CN201510038253 A CN 201510038253A CN 104574908 A CN104574908 A CN 104574908A
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Abstract
The invention provides a remote meter reading system, and relates to the technical field of communication. The remote meter reading system provided by the invention uses a Halle element and an acquirer matched with magnetic steel, the acquisition module is fixed on a mechanical character wheel through the magnetic steel to be matched with the Hall element (a sampling plate) so that the magnetic steel can rotate along with the rotation of the mechanical character wheel, and then a magnetic field emitted by the magnetic steel can be rotated; the sampling plate is capable of producing a sampling signal to finish the signal acquisition when the magnetic steel rotates to an appointed position. Compared with a reed switch, for the remote meter reading system, the Hall element is free of the mechanical failure, the reliability of the Hall element is higher than that of the reed switch, the service life is longer, the remote meter reading system is capable of accurately reading the scale of a meter, and the defect caused by the condition that the reed switch is used for signal acquiring in the prior art is solved.
Description
Technical field
The present invention relates to communication technique field, in particular to long-distance meter-reading system.
Background technology
Be unable to do without consumption to resources such as water, gas and electricity in daily life, the water yield that the water meter in family and gas meter consume family and tolerance 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.
Wireless long-distance meter-reading and payment system refer to the system wirelessly realizing subscriber's meter meter action control and information acquisition.As shown in Figure 1, system is by compositions such as remote meter reading and pre-payment management software (being called for short management system, the webserver 11), telecommunication middleware, wireless long-distance meter-reading collector (being called for short collector 14, for making a copy of the reading of table meter 15), wireless POS machine 13, wireless long-distance meter-reading concentrators (being called for short concentrator 12).
Wherein, remote meter reading and pre-payment management software are service management and the operating platform of wireless long-distance meter-reading and payment system, realize user management, the management of table tool, the various operation control functions such as management, toll administration, statistical study of checking meter; Wireless long-distance meter-reading collector, gather the metering signal of one or more telemetering meter, carry out data processing and transmission, receive host computer optimum configurations and control command, and according to the electronic installation of program setting logical OR PC control order control table meter valve event; Wireless long-distance meter-reading concentrator, carries out data acquisition, storage, transmission to multiple collector, and forwards the control command of host computer or the electronic installation of optimum configurations order to collector; Wireless POS machine, can count with remote meter reading and pre-payment management workstation, concentrator and showing the portable mobile wireless that collector carries out exchanges data and check meter and controlling equipment; Telecommunication middleware, is in charge of the signal procedure of GPRS telecommunication between the outer remote such as system and concentrator data terminal, and carried out isolation and bridge joint to front-end application and database, database security is high.
The wireless long-distance meter-reading of wireless long-distance meter-reading and payment system has two layers of meaning: (1) concentrator or table are counted and exchange data by GPRS radio communication between host computer, realize wireless long-distance meter-reading; (2) collector counted by POS of checking meter and table or concentrator exchanges data by short-distance wireless communication, realizes short-distance wireless and checks meter.
As shown in Figure 2, the wireless long-distance meter-reading collector in correlation technique is made up of functional modules such as main control module 101, sampling module 102, display module 103, wireless module 104, IC-card module for reading and writing 105 and action module 106.
Wherein, sampling module is used for acquisition tables meter continuous data, and common Sampling techniques comprise impulse sampling and direct-reading and to sample two classes.Normally fixedly mount a sensor on the character wheel side of table meter, with the rotation of character wheel, sensor just just can accumulate a reading whenever character wheel revolves to turn around, thus complete the counting of the character wheel number of turns, more just can draw by the character wheel number of turns and charging conversion the expense that the planted agent of user one end time pays.And by the control of other modules and host computer so that realize user supplement with money in advance after check meter, the behavior such as to withhold.
But in correlation technique, the sampling module of most of remote meter reading collector uses tongue tube to carry out impulse sampling, and tongue tube relies on the adhesive of reed to produce metrical pulse.Use tongue tube to carry out the collector of sampling, its reliability and following several respects about: tongue tube reed gradually lost its bounce cause reliability to reduce until lost efficacy, and then cannot impulse sampling be carried out; The spring strip contact outer layer protection because of metal multiple-contact of tongue tube and wear and tear and cause reliability to reduce until lost efficacy, and then impulse sampling cannot be carried out; The reed of tongue tube is aging because of repeatedly voltage and current effect causes reliability to reduce until lost efficacy, and then cannot carry out impulse sampling.
To sum up, the sampling module in existing collector is sampled owing to using tongue tube, and with the prolongation of tongue tube service time, tongue tube effectively cannot generate metering signal, and then causes cannot normally working of collector.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide long-distance meter-reading system, to improve the accuracy of remote meter reading.
First aspect, embodiments provides long-distance meter-reading system, comprising:
The webserver, concentrator and collector;
Described collector comprises and is arranged on magnet steel on mechanical character wheel and is arranged on mechanical character wheel outside, and the sampling plate matched with magnet steel, and the counting module be electrically connected with sampling plate, described sampling plate is Hall element;
Described magnet steel can rotate with the rotation of described mechanical character wheel, and when described magnet steel rotates to assigned address, described sampling plate produces sampled signal;
Counting module is used for generating statistics according to the sampled signal quantity got in the schedule time;
Concentrator is used for when getting meter reading instruction, and statistics is sent to the webserver.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, described sampling plate comprises the first sampling plate and the second sampling plate that are separately positioned on mechanical character wheel both sides, described counting module generates an actual count unit after getting the sampled signal that the first sampling plate and the second sampling plate send successively, and generating statistics according to described actual count unit, described actual count unit representation mechanical character wheel rotates predetermined radian.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, described collector also comprises the first sending module, and described first sending module comprises the first data length judging unit first data partitioning unit, the first packet generation unit;
First data length judging unit, for judging whether the length of described statistics is greater than default standard length;
First data partitioning unit, if the first data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described statistics is 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 to be sent if the first data length judging unit is judged as NO, then for described statistics being encapsulated, or are encapsulated by the first packet generation unit.
In conjunction with first aspect, embodiments provide the third possible embodiment of first aspect, wherein, also comprise: comparer, the first alarm and be arranged at the flux leakage detector of sampling plate peripheral part;
Described comparer is electrically connected with flux leakage detector and the first alarm respectively, and for generating the first alerting signal when the magnetic field intensity detected by described flux leakage detector is greater than preset value;
The first alerting signal that described first alarm is used for according to getting is reported to the police.
In conjunction with first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, also comprise counter and the second alarm, described counter is electrically connected with the first sampling plate and the second sampling plate respectively, and for after receiving the sampled signal that two the first sampling plates generate continuously, or after receiving the sampled signal that two the second sampling plates generate continuously, generate the second alerting signal
Described second alarm is electrically connected with counter, and for reporting to the police according to the second alerting signal got.
In conjunction with first aspect, embodiments provide the 5th kind of possible embodiment of first aspect, wherein, described collector is multiple, each collector is arranged on one and is provided with on the table meter of mechanical character wheel, statistics, respectively by the mode of bus transfer or wireless transmission, is sent to concentrator by the counting module of each collector.
In conjunction with first aspect, embodiments provide the 6th kind of possible embodiment of first aspect, wherein, settle if the multiple described collector in predetermined concentrated area is concentrated, statistics, all by the mode of bus transfer, is sent to concentrator by the whole collectors then in described concentrated area;
If the multiple described collector scattered resettlement in predetermined discrete areas, then statistics, all by the mode of wireless transmission, is sent to concentrator by the whole collectors in described discrete areas.
In conjunction with first aspect, embodiments provide the 7th kind of possible embodiment of first aspect, wherein, the registration packet sending module that described concentrator comprises time block and is connected with time block, the described webserver comprises enquiry module and instruction issuing module;
Time block, for generating communication instruction every predetermined time;
Registration packet sending module, 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 operational order corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module, operational order corresponding with identity registration bag in instruction issue queue.
In conjunction with first aspect, embodiments provide the 8th kind of possible embodiment of first aspect, wherein, described concentrator also comprises instruction acquisition module and the second sending module, and described second sending module comprises the second data length judging unit, the second data partitioning unit, the second packet generation unit and delivery unit;
Described instruction acquisition module, for obtaining the operational order that instruction issuing module sends, described operational order comprises collector code;
Second data length judging unit, for judging whether the length of described operational order is greater than default standard length;
Second data partitioning unit, if the second data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described operational order is 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 to be sent if the second data length judging unit is judged as NO, then for being encapsulated by described operational order, to generate transmission packet, or are encapsulated, to generate transmission packet by the second packet generation unit;
Delivery unit, for according to collector code entrained in operational order, by described transmission Packet Generation to the collector of specifying.
In conjunction with first aspect, embodiments provide the 9th kind of possible embodiment of first aspect, wherein, also comprise wireless POS machine, described wireless POS machine is connected with the webserver, collector and concentrator respectively by serial ports or RF wireless transmission method.
The long-distance meter-reading system that the embodiment of the present invention provides, adopt the collector that Hall element and magnet steel match, with use tongue tube of the prior art as main signal pickup assembly, due to the restriction of tongue tube physical characteristics, tongue tube is caused to be difficult to carry out normally the sampling of signal after a period of operation, and then normally cannot work and compare, it is by being fixed on mechanical character wheel by the magnet steel coordinated with Hall element (sampling plate), magnet steel is rotated with the rotation of mechanical character wheel, and then the magnetic field making magnet steel send rotates, thus when magnet steel rotates to certain assigned address, sampling plate is enable to produce sampled signal, with the collection of settling signal, compared to tongue tube, can not mechanical fault be there is in Hall element, reliability is higher than tongue tube, life-span is longer, and then the reading of long-distance meter-reading system his-and-hers watches meter is accurately read, solve in prior art the defect using tongue tube to carry out signals collecting to bring.
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 long-distance meter-reading system structural drawing in correlation technique;
Fig. 2 shows the logic connectivity diagram of collector in the long-distance meter-reading system structure in correlation technique;
Fig. 3 shows the structural representation of collector in the long-distance meter-reading system that the embodiment of the present invention provides;
Fig. 4 shows the elementary wiring diagram of the long-distance meter-reading system that the embodiment of the present invention provides;
Fig. 5 shows the local optimum connection layout of the long-distance meter-reading system that the embodiment of the present invention provides.
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.
Embodiments provide long-distance meter-reading system, as shown in Fig. 3, Fig. 4 and Fig. 5, comprising:
The webserver 114, concentrator 115 and collector 116;
Described collector 116 comprise be arranged on magnet steel on mechanical character wheel 110 111 and be arranged on mechanical character wheel 110 outside, and the sampling plate matched with magnet steel 111, and the counting module be electrically connected with sampling plate, described sampling plate is Hall element;
Described magnet steel 111 can rotate with the rotation of described mechanical character wheel 110, and when described magnet steel 111 rotates to assigned address, described sampling plate produces sampled signal;
Counting module is used for generating statistics according to the sampled signal quantity got in the schedule time;
Statistics, for when getting meter reading instruction, is sent to the webserver 114 by concentrator 115.
Mechanical character wheel 110 is on water meter, gas meter, and along with the use amount of water or rock gas increases and the device of the rotating disk dress of rotation, its number of turns of rotating is more, illustrates that the consumed resource that water meter or gas meter record is larger.In correlation technique, also just by drawing in certain hour to the confirmation of mechanical character wheel 110 rotating cycle the quantity using water or rock gas.What namely measure water or gas consumption is primarily the rotating cycle that will identify mechanical character wheel 110.Mechanical character wheel 110 also has multiple, same table is also exist simultaneously multiple, the character wheel of the hour hands of its function and quartz watch, minute hand, second hand is similar, is played the effect of record by the multiple character wheels (character wheel varied in size) be connected.Usually, magnet steel 111 to be arranged on minimum mechanical character wheel 110 (mechanical character wheel 110 as 1/1000 numerical digit or 1/100 numerical digit), to make the data recorded more accurate.
Concrete, Hall element is made up of semiconductor material, it has extremely strong susceptibility to magnetic field, therefore when the relative position of the magnetic field that magnet steel 111 sends and sampling plate changes time, sampling plate can according to the power in magnetic field (one end as magnet steel 111 faces/perpendicular to sampling plate time, magnetic field intensity received by sampling plate be maximum), when magnetic field intensity exceedes predetermined numerical value produce sampled signal.Magnet steel 111 rotates along with the autobiography of mechanical character wheel 110, thus the magnetic field driving magnet steel 111 to send is also in rotation, when the magnetic field intensity that sampling plate detects is excessive, then produce sampled signal, by the metering to sampled signal quantity in subsequent conditioning circuit, just can know the number of turns that magnet steel 111 rotates, also just can know the rotating cycle of mechanical character wheel 110.And then pass through the specification of the mechanical character wheel 110 recognized in advance, thus the use amount of conversion water outlet/rock gas.The use amount of water/rock gas i.e. statistics herein, concentrator 115 can be each predetermined time, from collector 116 collection of statistical data (namely, its inside generated every predetermined time during meter reading instruction now); Also can be after concentrator 115 receives the instruction of host computer (webserver 114), then come from collector 116 collection.Wherein, a concentrator 115 generally corresponds to multiple collector 116, collector 116 is provided with as in each user family in a community, but a concentrator 115 normally region (multiple user institutes compositing area) just arranges one, thus concentrator 115 with collector 116 communication in, need the code carrying collector 116.
Concrete, described sampling plate comprises the first sampling plate 112 and the second sampling plate 113 being separately positioned on mechanical character wheel 110 both sides, described counting module generates an actual count unit after getting the sampled signal that the first sampling plate 112 and the second sampling plate 113 send successively, and generating statistics according to described actual count unit, described actual count unit representation mechanical character wheel 110 rotates predetermined radian (a week).
The magnetic field rotating that first sampling plate 112 and the second sampling plate 113 all can produce at magnet steel 111 produces corresponding sampled signal in certain position.As the first collection plate and the second collection plate being listed in respectively the both sides (can be understood as the diameter of circular machinery character wheel 110 and the point of intersection at edge) of mechanical character wheel 110, then can ensure that the every half revolution of character wheel can make the first sampling plate 112 or the second sampling plate 113 produce sampled signal, thus by gathering the signal on the first sampling plate 112 and the second sampling plate 113, confirm the number of turns that mechanical character wheel 110 rotates.Certainly, the quantity of sampling plate can not be two, goes back three, four, or more, and multiple sampling plate can arrange along the edge of mechanical character wheel 110, and the distance that interval is identical.After each sampling plate all produces sampled signal, just can think mechanical character wheel 110 autobiography one week.If certain sampling plate does not send sampled signal always, and other sampling plate is sending sampled signal always, it may be then certain sampling plate fault, now should safeguard, also be likely user's malicious sabotage sampling plate and the improper counting that causes (only has all, or the several sampling plates at least specified all produce sampled signal can think that character wheel have rotated one week, only has one, or a small amount of sampling plate generation sampled signal can not be identified mechanical character wheel 110 and rotate a circle, user can stop collector 116 normally to work by the mode destroying fractional-sample plate, counting, and escape paying), acquisition module for remote meter reading provided by the present invention, by two, or the set-up mode of multiple sampling plate can avoid the generation of this kind of situation (to destroy part collection plate, the reading of the first sampling plate 112 and the second sampling plate 113 can be made to carry out not in accordance with the mode of regulation, thus trigger alarm).Namely actual count unit representation mechanical character wheel 110 have rotated one week, also only can confirm generation actual count unit after reading the signal that two sampling plates send successively.
Because packet is longer, wherein one or more bytes occur that the probability of error code is higher, therefore in order to avoid problem that the length of packet is long.Described collector 116 also comprises the first sending module, and described first sending module comprises the first data length judging unit first data partitioning unit, the first packet generation unit;
First data length judging unit, for judging whether the length of described statistics is greater than default standard length;
First data partitioning unit, if the first data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described statistics is 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 to be sent if the first data length judging unit is judged as NO, then for described statistics being encapsulated, or are encapsulated by the first packet generation unit.
Data (receive when tabling look-up information when sending, send local reading to concentrator 115), can reduce the whole bag packet loss of packet, improve the reliability of data communication by carrying out fractionation to data.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.Data transmission unit can use as M-BUS bus protocol carries out data communication.And by reducing the length of packet, the penetration capacity of signal and accessible communication distance can be improved when use radio-frequency communication (RF).
It should be noted that, time 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.
Further, long-distance meter-reading system, also comprises: comparer, the first alarm and be arranged at the flux leakage detector of sampling plate peripheral part;
Described comparer is electrically connected with flux leakage detector and the first alarm respectively, and for generating the first alerting signal when the magnetic field intensity detected by described flux leakage detector is greater than preset value;
The first alerting signal that described first alarm is used for according to getting is reported to the police.
Intensive magnetism attack is a kind of attack magnetic element, to a kind of means that it impacts.Therefore, in order to ensure that collector 116 can normally work, the magnetic field intensity around sampling plate is directly obtained by the flux leakage detector being arranged on sampling plate peripheral part.It should be noted that flux leakage detector can be directly connected on sampling plate, to obtain the magnetic field intensity accessed by sampling plate more accurately.Magnetic field intensity received by usual sampling plate is uniform (being regular change with the distance of sampling plate time magnet steel 111 carries out rotating with mechanical character wheel 110), therefore, also whether can be rule change by the magnetic field intensity detected received by sampling plate, or whether carry out according to predetermined Changing Pattern, and then judge whether sampling plate have received intensive magnetism attack.
On the other hand, long-distance meter-reading system, counter and the second alarm can also be comprised, described counter is electrically connected with the first sampling plate 112 and the second sampling plate 113 respectively, and for after receiving the sampled signal that two the first sampling plates 112 generate continuously, or after receiving the sampled signal that two the second sampling plates 113 generate continuously, generate the second alerting signal
Described second alarm is electrically connected with counter, and for reporting to the police according to the second alerting signal got.
Namely, using at least two sampling plates, time character wheel rotates a circle, should be that two sampling plates produce sampled signal successively, therefore, and can by judging whether two sampling plates are produce sampled signal successively to judge whether collector 116 normally works.
As mentioned before, usually this multiple collector 116 is there is in same community, multiple collector 116 correspond to same concentrator 115, namely described collector 116 is multiple, each collector 116 is arranged on one and is provided with on the table meter of mechanical character wheel 110, the counting module of each collector 116 transmits respectively by bus 117 or wireless 118 modes transmitted, and statistics is sent to concentrator 115.
In correlation technique, the placement rule (distribution mode) of collector 116 is unfixed, be sometimes dispersion be installed in the family of user, sometimes, be 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, the acquisition mode of wireless telecommunications time therefore simple is sometimes cannot the Obtaining Accurate data that provide to collector 116.Therefore, when concrete use, different communication modes can be selected according to the distribution situation of collector 116, carry out corresponding data interaction.During concrete use, as, the mode that connects can be carried out in advance by bus 117, by shifting to an earlier date cable laying, connect main control module and collector 116 (prerequisite being connected bus module and collector 116 by cable laying is collector 116 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 117 to carry out connecting, disperse the region of installing can use the mode of wireless telecommunications, to ensure lower communication cost and good communication quality at collector 116.
Concrete, if the multiple described collector in predetermined concentrated area 116 is concentrated settle, then statistics, all by the mode of bus transfer, is sent to concentrator 115 by the whole collectors 116 in described concentrated area;
If multiple described collector 116 scattered resettlement in predetermined discrete areas, then statistics, all by the mode of wireless transmission, is sent to concentrator 115 by the whole collectors 116 in described discrete areas.
8. long-distance meter-reading system according to claim 3, is characterized in that, the registration packet sending module that described concentrator 115 comprises time block and is connected with time block, and the described webserver 114 comprises enquiry module and instruction issuing module;
Time block, for generating communication instruction every predetermined time;
Registration packet sending module, if get communication instruction, then sends the identity registration bag of local concentrator 115 to the webserver 114;
Enquiry module, for inquiring about whether there be the operational order corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module, operational order corresponding with identity registration bag in instruction issue queue.
The webserver 114 is manager provide network-side for managing concentrator 115 and collector 116.Wherein, the very important function of concentrator 115 is got in touch with the webserver 114, and carry out data interaction (as above passing amr message, download instruction etc.) with the webserver 114.
The webserver 114, after receiving registration packet and sending the identity registration bag that sends of mould, needs to check the instruction whether having and need to assign, if had, then can pass on corresponding operational order by instruction issuing module to GPRS module.
During use, the quantity of concentrator 115 is quite huge, multiple concentrator 115 is distributed with as needed in each community, each city includes again a large amount of communities, therefore, when concentrator 115 carries out communication with the webserver 114, need the quantity by controlling the concentrator 115 being in connection status with the webserver 114 simultaneously, ensure that the webserver 114 needs the instruction of passing on to concentrator 115 to assign fast, and ensure that concentrator 115 needs the data uploaded to the webserver 114 to send timely.Therefore, any one concentrator 115 should not keep with the webserver 114 being connected (can delay other concentrators 115 like this and carry out data interaction with the webserver 114) for a long time.
Thus, the webserver 114 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, then should disconnect the connection of the concentrator 115 corresponding with identity registration bag.
Except collector 116 needs the length issue considering packet when sending data to concentrator 115, concentrator 115 also needs to consider this problem to collector 116 sends instruction or data time, therefore, described concentrator 115 also comprises instruction acquisition module and the second sending module, and described second sending module comprises the second data length judging unit, the second data partitioning unit, the second packet generation unit and delivery unit;
Described instruction acquisition module, for obtaining the operational order that instruction issuing module sends, described operational order comprises collector 116 code;
Second data length judging unit, for judging whether the length of described operational order is greater than default standard length;
Second data partitioning unit, if the second data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described operational order is 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 to be sent if the second data length judging unit is judged as NO, then for being encapsulated by described operational order, to generate transmission packet, or are encapsulated, to generate transmission packet by the second packet generation unit;
Delivery unit, for according to collector 116 code entrained in operational order, by described transmission Packet Generation to the collector 116 of specifying.
Meanwhile, long-distance meter-reading system provided by the present invention, also comprises wireless POS machine, and described wireless POS machine is connected with the webserver 114, collector 116 and concentrator 115 respectively by serial ports or RF wireless transmission method.
Wireless POS machine can count with remote meter reading and pre-payment management workstation, concentrator and showing the portable mobile wireless that collector carries out exchanges data to check meter and controlling equipment.
Wireless POS machine adopts pure serial ports full impregnated biography RF wireless module to carry out upgrading to the general POS of financial level, complete machine is made up of functional parts such as high-performance CPU, massive store unit, keyboard, display unit, IC-card read-write cell, magnetic card read-write cell, security control unit (SAM card module), print unit, usb interface unit, GPRS remote communication module, micropower RF wireless modules, support real-time multi-task operating system, support multiple application program is installed, support remote management of CPE, highly versatile, powerful, client's whole possessing cost is low.
This wireless POS machine design feature is as follows:
A) adopt pure serial ports, the transparent transmission micropower RF wireless module of independent research, the connection of wireless POS machine and other parts and control are simplified.
B) RF short-range wireless communication and GPRS remote radio communication are organically combined, make application program at use scene can with remote data base real-time exchange data, data are in time, accurately.
C) thermal printer is carried, can field print bill, convenient and swift.
D) financial certification authority is had, can brush bank card, on-the-spot payment can be realized.
E) massive store unit supports TF card, and transaction data of can backing up in realtime, recovers data when POS breaks down by backup card, avoids loss to greatest extent.
F) high-performance CPU runs real-time multi-task operating system, supports to install multiple utility program, can realize a tractor serves several purposes.
Long-distance meter-reading system provided by the present invention, by being provided with magnet steel on mechanical character wheel, and be provided with two sampling plates in mechanical character wheel both sides, when making to only have two sampling plates to produce sampled signal successively, just can think that mechanical character wheel have rotated one week, and then count again; Also by being provided with the mode of packet splitting and reorganizing, ensure that when to carry out data interaction between collector and concentrator, the data volume of at every turn putting is all less, ensure that the reliability of data communication; Also by being provided with the connected mode of the heartbeat mechanism of concentrator and the webserver, make each concentrator all can not take the webserver for a long time, make the webserver assign the speed of instruction sooner, efficiency is higher.
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. long-distance meter-reading system, is characterized in that, comprising:
The webserver, concentrator and collector;
Described collector comprises and is arranged on magnet steel on mechanical character wheel and is arranged on mechanical character wheel outside, and the sampling plate matched with magnet steel, and the counting module be electrically connected with sampling plate, described sampling plate is Hall element;
Described magnet steel can rotate with the rotation of described mechanical character wheel, and when described magnet steel rotates to assigned address, described sampling plate produces sampled signal;
Counting module is used for generating statistics according to the sampled signal quantity got in the schedule time;
Concentrator is used for when getting meter reading instruction, and statistics is sent to the webserver.
2. long-distance meter-reading system according to claim 1, it is characterized in that, described sampling plate comprises the first sampling plate and the second sampling plate that are separately positioned on mechanical character wheel both sides, described counting module generates an actual count unit after getting the sampled signal that the first sampling plate and the second sampling plate send successively, and generating statistics according to described actual count unit, described actual count unit representation mechanical character wheel rotates predetermined radian.
3. long-distance meter-reading system according to claim 2, is characterized in that, described collector also comprises the first sending module, and described first sending module comprises the first data length judging unit, the first data partitioning unit, the first packet generation unit;
First data length judging unit, for judging whether the length of described statistics is greater than default standard length;
First data partitioning unit, if the first data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described statistics is 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 to be sent if the first data length judging unit is judged as NO, then for described statistics being encapsulated, or are encapsulated by the first packet generation unit.
4. long-distance meter-reading system according to claim 1, is characterized in that, also comprises: comparer, the first alarm and be arranged at the flux leakage detector of sampling plate peripheral part;
Described comparer is electrically connected with flux leakage detector and the first alarm respectively, and for generating the first alerting signal when the magnetic field intensity detected by described flux leakage detector is greater than preset value;
The first alerting signal that described first alarm is used for according to getting is reported to the police.
5. long-distance meter-reading system according to claim 2, it is characterized in that, also comprise counter and the second alarm, described counter is electrically connected with the first sampling plate and the second sampling plate respectively, and for after receiving the sampled signal that two the first sampling plates generate continuously, or after receiving the sampled signal that two the second sampling plates generate continuously, generate the second alerting signal
Described second alarm is electrically connected with counter, and for reporting to the police according to the second alerting signal got.
6. long-distance meter-reading system according to claim 2, it is characterized in that, described collector is multiple, each collector is arranged on one and is provided with on the table meter of mechanical character wheel, statistics, respectively by the mode of bus transfer or wireless transmission, is sent to concentrator by the counting module of each collector.
7. long-distance meter-reading system according to claim 6, is characterized in that, settle if the multiple described collector in predetermined concentrated area is concentrated, then statistics, all by the mode of bus transfer, is sent to concentrator by the whole collectors in described concentrated area;
If the multiple described collector scattered resettlement in predetermined discrete areas, then statistics, all by the mode of wireless transmission, is sent to concentrator by the whole collectors in described discrete areas.
8. long-distance meter-reading system according to claim 3, is characterized in that, the registration packet sending module that described concentrator comprises time block and is connected with time block, and the described webserver comprises enquiry module and instruction issuing module;
Time block, for generating communication instruction every predetermined time;
Registration packet sending module, 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 operational order corresponding with identity registration bag in the instruction queue preset;
Instruction issuing module, operational order corresponding with identity registration bag in instruction issue queue.
9. long-distance meter-reading system according to claim 8, it is characterized in that, described concentrator also comprises instruction acquisition module and the second sending module, and described second sending module comprises the second data length judging unit, the second data partitioning unit, the second packet generation unit and delivery unit;
Described instruction acquisition module, for obtaining the operational order that instruction issuing module sends, described operational order comprises collector code;
Second data length judging unit, for judging whether the length of described operational order is greater than default standard length;
Second data partitioning unit, if the second data length judging unit is judged as YES, then according to the Data Segmentation mode preset, described operational order is 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 to be sent if the second data length judging unit is judged as NO, then for being encapsulated by described operational order, to generate transmission packet, or are encapsulated, to generate transmission packet by the second packet generation unit;
Delivery unit, for according to collector code entrained in operational order, by described transmission Packet Generation to the collector of specifying.
10. long-distance meter-reading system according to claim 1, is characterized in that, also comprises wireless POS machine, and described wireless POS machine is connected with the webserver, collector and concentrator respectively by serial ports or RF wireless transmission method.
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| CN201510038253.2A CN104574908A (en) | 2015-01-26 | 2015-01-26 | Remote meter reading system |
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| CN201510038253.2A CN104574908A (en) | 2015-01-26 | 2015-01-26 | Remote meter reading system |
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| CN104574908A true CN104574908A (en) | 2015-04-29 |
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| CN201510038253.2A Pending CN104574908A (en) | 2015-01-26 | 2015-01-26 | Remote meter reading system |
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Application publication date: 20150429 |