CN103247162A - Meter-reading system based on low-power-consumption wireless technology - Google Patents
Meter-reading system based on low-power-consumption wireless technology Download PDFInfo
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- CN103247162A CN103247162A CN2013101791496A CN201310179149A CN103247162A CN 103247162 A CN103247162 A CN 103247162A CN 2013101791496 A CN2013101791496 A CN 2013101791496A CN 201310179149 A CN201310179149 A CN 201310179149A CN 103247162 A CN103247162 A CN 103247162A
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Abstract
The invention discloses a meter-reading system based on a low-power-consumption wireless technology. The meter-reading system comprises a wireless meter-reading terminal and a plurality of pieces of wireless metering equipment corresponding to the wireless meter-reading terminal, wherein a first low-power wireless chip is arranged in each piece of wireless metering equipment; a second low-power wireless chip is arranged in the wireless meter-reading terminal; the first low-power wireless chips and the second low-power wireless chip are CC1100 chips adopting a 433MHz wireless frequency band or a 470MHz wireless frequency band; and a terminal wireless transmitting module is in wireless communication with a metering wireless transmitting module through the CC1100 chips, so that data communication, acquisition and recording between the wireless meter-reading terminal and each piece of wireless metering equipment are realized. The meter-reading system has the characteristics of low power consumption, high accuracy, high stability, small size and the like, has a wireless transmitting and receiving function, and is capable of being communicated with an upper computer system of a computer.
Description
Technical field
The present invention relates to field of wireless communication, particularly a kind of kilowatt meter reading-out system based on the low-consumption wireless technology.
Background technology
In the fast urbanization in current china process, building energy consumption and industrial energy consumption proportion are increasing, and the contradiction of the energy and development becomes increasingly conspicuous.For example, in order to excavate each building energy-saving potentiality substantially, in advance existing building is carried out the data acquisition of energy consumption and correlation parameter thereof with regard to needing, by the data that collect are analyzed, obtain optimized energy-saving scheme.
In the prior art, to carrying out in the energy auditing process such as building, the collection in worksite of the energy consumption of building and the data relevant with building energy consumption all is with the hand-held acquisition instrument, be main as cooperation hand-kepts such as hand-held humiture collection instrument, hand-held carbon dioxide Acquisition Instruments, though simple to operate, easy to carry, collection flexible characteristic that this handheld instrument has, but the parameter of certain time point of intelligent acquisition can't be finished the continuity data acquisition.Simple several field data and meter reading data obviously can't collect energy consumption point and the energy laws of use of this building.If before energy auditing, adopt wired mode then need comprehensive wiring, in long in time limit, the financial burden, for this be that the work of purpose is obviously unlikely with the audit.Simultaneously, the problems referred to above exist in industrial process too.
Therefore, be necessary to provide a kind of wireless energy consumption collecting device, to make things convenient for the energy consumption collection.
Summary of the invention
In order to overcome the defective of prior art, the invention discloses a kind of kilowatt meter reading-out system based on the low-consumption wireless technology, characteristics such as this kilowatt meter reading-out system has low-power consumption, precision height, stability is strong, volume is little have radio transmission-receiving function, can realize the communication capacity with the computing machine master system.
The invention discloses following technical scheme:
A kind of kilowatt meter reading-out system based on the low-consumption wireless technology comprises radio meter register terminal and the some wireless metering outfit corresponding with described radio meter register terminal; Wherein:
Described wireless metering outfit comprises first wireless transmitter module and the metering outfit that links to each other with described first wireless transmitter module;
Described radio meter register terminal and a PC communicate; Described radio meter register terminal comprises second wireless transmitter module and the data acquisition unit that links to each other with described second wireless transmitter module;
Carry out the wireless transmission of data between described first wireless transmitter module and described second wireless transmitter module, thereby realize data communication, collection and record between described radio meter register terminal and the described wireless metering outfit; And described radio meter register terminal handles to described PC the data upload that collects.
Preferably, described first wireless transmitter module comprises first micro-control unit and the first low-power wireless chip that links to each other with described first micro-control unit; Described second wireless transmitter module comprises second micro-control unit and the second low-power wireless chip that links to each other with described second micro-control unit; Carry out the wireless transmission of data between described first wireless transmitter module and described second wireless transmitter module by the described first low-power wireless chip and the described second low-power wireless chip.
Preferably, the described first low-power wireless chip and the described second low-power wireless chip are the CC1100 chip, and described first micro-control unit and described second micro-control unit are the MSP430 single-chip microcomputer.
Preferably, described CC1100 chip uses 433MHz radio band or 470MHz radio band.
Preferably, be connected by the SPI interface between described first micro-control unit and the described first low-power wireless chip.
Preferably, be connected by the SPI interface between described second micro-control unit and the described second low-power wireless chip.
Preferably, described metering outfit comprises a pair of pulse port, and described metering outfit is connected with the external interrupt port of described second micro-control unit by described dipulse port; Pointer rotation half-turn when described metering outfit then produces pulsatile once in the port in described dipulse port; Pointer rotation one circle when described metering outfit then produces pulsatile once in the another port in described dipulse port; Described second micro-control unit judges and records the data of described metering outfit according to the pulse number in the described dipulse port.
Preferably, described second wireless transmitter module and described data acquisition unit carry out exchanges data by the UART interface.
Compared with prior art, beneficial effect of the present invention is as follows:
1, has characteristics such as low-power consumption, precision height, stability is strong, volume is little;
2, has radio transmission-receiving function;
3, cost is lower.
Description of drawings
Fig. 1 is the structural representation of specific embodiment of the invention kilowatt meter reading-out system;
Fig. 2 is the structural representation of specific embodiment of the invention radio meter register terminal;
Fig. 3 A is the structural representation of the wireless metering outfit of the present invention's one specific embodiment;
Fig. 3 B is the structural representation of the wireless metering outfit of another specific embodiment of the present invention.
Embodiment:
The present invention will be further described with specific embodiment by reference to the accompanying drawings in the below.
Embodiment
As Fig. 1, a kind of kilowatt meter reading-out system based on the low-consumption wireless technology, radio meter register terminal 100 and the some wireless metering outfit 200 corresponding with radio meter register terminal 100, wherein, be provided with first wireless transmitter module 201 in the wireless metering outfit 200, be provided with second wireless transmitter module 101 in the radio meter register terminal 100, radio meter register terminal 100 and wireless metering outfit 200 be the wireless transmission of carrying out data of first wireless transmitter module 201 and second wireless transmitter module 101 by its inside separately, thereby realizes the data communication of radio meter register terminal and wireless metering outfit, the function of gathering and recording.
Below radio meter register terminal 100 and wireless metering outfit 200 are specifically described:
As Fig. 2, radio meter register terminal 100 comprises second wireless transmitter module 101, data acquisition unit 104 and UART interface, and second wireless transmitter module 101 and data acquisition unit 104 carry out exchanges data by the UART interface; Be provided with the second low-power wireless chip 102 and the second micro-control unit 103(MCU in second wireless transmitter module 101); The described second low-power wireless chip 102 is the CC1100 chip, and described CC1100 chip uses 433MHz radio band or 470MHz radio band; Described second micro-control unit 103 is the MSP430 single-chip microcomputer; Be connected by the SPI interface between described second micro-control unit 103 and the described second low-power wireless chip 102.Man-machine interface in the described data acquisition unit 104 is responsible for the function with data communication, collection and the record of all wireless metering outfits 200.Can communicate with PC machine 105 by serial ports in addition, the data upload that is recorded among the FLASH is further processed to PC, wherein FLASH arranges in data acquisition unit.
As Fig. 3 A to Fig. 3 B, the metering outfit with dipulse function 202 that described wireless metering outfit 200 comprises first wireless transmitter module 201, is connected with first wireless transmitter module 201 by the dipulse interface.Certainly described wireless metering outfit 200 can also be other form, for example comprises first wireless transmitter module 201, passes through other equipment 203 that 485 interfaces are connected with first wireless transmitter module 201; Be provided with the first low-power wireless chip 204 and the first micro-control unit 205(MCU in the described wireless transmitter module); The described first low-power wireless chip 102 is the CC1100 chip, and described CC1100 chip uses 433MHz radio band or 470MHz radio band; Described first micro-control unit is the MSP430 single-chip microcomputer.Be connected by the SPI interface between described first micro-control unit 205 and the described first low-power wireless chip 204.
Wherein, the 470MHz radio band belongs to the low-consumption wireless frequency range, and this radio band is widely used in the kilowatt meter reading-out system, no longer it is specifically described at this.The 433MHz radio band belongs to the ultra-low power consumption wireless frequency range, belongs near field communication (NFC) based on the low-consumption wireless technology of 433MHz, and all uses ISM(Industrial Scientific Medical) unlicensed band.The characteristics of 433MHz are low-power consumption, high reliability, strong anti-interference, arrange net easily, can easily network coverage be extended to several times by wireless repeater, therefore the occasion to the complex space environment can be used from little space to large space, from simple space environment.
Low-power Technology is used the 433MHz radio band, the significant advantage of 433MHz be the penetrability of wireless signal strong, can propagate fartherly.Therefore the 433MHz technology generally only is applicable to the application scenario that volume of transmitted data is less.From the angle of communication reliability, 433MHz can support the topological structure of Star Network, realizes the expansion in network coverage space by the mode of many base stations.
The normal mode of operation of 433HHz wireless technology is: only just can set up Radio Link in the moment that data transmit-receive is arranged, therefore greatly reduce the interference to miscellaneous equipment in the network, also reduce the power consumption of equipment itself simultaneously.Certainly, this technology also can become to be similar to the pattern of " always online " from the angle design of application layer, realizes the compromise between function, power consumption and the reliability by " refresh time at interval " parameter is set reasonably.
Wherein, wireless metering outfit 200 is set to such form, that is: the benefit of the metering outfit with dipulse function 202 that comprise first wireless transmitter module 201, is connected by the dipulse interface with first wireless transmitter module 201 is: the dipulse port of metering outfit 202 is received the external interrupt port of the MCU 205 on first wireless transmitter module 201, will produce pulsatile once in a port therein when the pointer on the metering outfit 202 rotates half-turn, rotate a circle and will in another port, produce pulsatile once.Such two subpulses just can make MCU205 be used for judging and record data, prevent false triggering and make error in data.
The working method of the kilowatt meter reading-out system based on the low-consumption wireless technology provided by the invention is:
Radio meter register terminal 100 is responsible for sending address, control command and the data of wireless metering outfit 200, and wireless metering outfit 200 is responsible for collecting field data, carries out certain data and handles, according to the return data that requires of radio meter register terminal.Wireless metering outfit 200 does not initiatively send order or data, and all are all by 100 controls of radio meter register terminal.Share same physical channel owing to send and receive, therefore only allow a wireless metering outfit 200 to be in the transmission state at any time.Have only the wireless metering outfit 200 ability busy channels of being called out by radio meter register terminal 100, radio meter register terminal 100 is made replied.Every wireless metering outfit 200 all is assigned a unique address.When radio meter register terminal 100 is communicated by letter with wireless metering outfit 200, radio meter register terminal 100 is called out certain wireless metering outfit 200 address earlier, after waking called wireless metering outfit 200 up, carry out exchanges data between radio meter register terminal 100 and the wireless metering outfit 200, not called wireless metering outfit 200 then keeps electromagnetic wave and wakes (WOR) state up; The information that radio meter register terminal 100 sends can pass to the wireless metering outfit 200 of a plurality of wireless metering outfits 200 or appointment, and the information that metering outfit that each is wireless 200 sends can only be received by radio meter register terminal 100.
Arousal function can guarantee the wireless chip reception packet of periodically waking up from sleep state under the intervention that does not have microprocessor.Wake-up period is by the control of WOR timer, and this timer clock derives from interior RC oscillator.When detecting synchronous vocabulary in the cycle in accepting state, then by configurable general digital output pin (GDO) MCU is waken up, carry out further data by MCU then and handle, if in this cycle, do not detect synchronous vocabulary, will get back to sleep state automatically.
The preferred embodiment of the present invention just is used for helping to set forth the present invention.Preferred embodiment does not have all details of detailed descriptionthe, does not limit this invention yet and only is described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain principle of the present invention and practical application better, thereby the technical field technician can utilize the present invention well under making.The present invention only is subjected to the restriction of claims and four corner and equivalent.
Claims (8)
1. the kilowatt meter reading-out system based on the low-consumption wireless technology is characterized in that, comprises radio meter register terminal and the some wireless metering outfit corresponding with described radio meter register terminal; Wherein:
Described wireless metering outfit comprises first wireless transmitter module and the metering outfit that links to each other with described first wireless transmitter module;
Described radio meter register terminal and a PC communicate; Described radio meter register terminal comprises second wireless transmitter module and the data acquisition unit that links to each other with described second wireless transmitter module;
Carry out the wireless transmission of data between described first wireless transmitter module and described second wireless transmitter module, thereby realize data communication, collection and record between described radio meter register terminal and the described wireless metering outfit; And described radio meter register terminal handles to described PC the data upload that collects.
2. the kilowatt meter reading-out system based on the low-consumption wireless technology according to claim 1 is characterized in that, described first wireless transmitter module comprises first micro-control unit and the first low-power wireless chip that links to each other with described first micro-control unit; Described second wireless transmitter module comprises second micro-control unit and the second low-power wireless chip that links to each other with described second micro-control unit; Carry out the wireless transmission of data between described first wireless transmitter module and described second wireless transmitter module by the described first low-power wireless chip and the described second low-power wireless chip.
3. the kilowatt meter reading-out system based on the low-consumption wireless technology according to claim 2, it is characterized in that, the described first low-power wireless chip and the described second low-power wireless chip are the CC1100 chip, and described first micro-control unit and described second micro-control unit are the MSP430 single-chip microcomputer.
4. the kilowatt meter reading-out system based on the low-consumption wireless technology according to claim 3 is characterized in that, described CC1100 chip uses 433MHz radio band or 470MHz radio band.
5. according to claim 2 or 3 described kilowatt meter reading-out systems based on the low-consumption wireless technology, it is characterized in that, be connected by the SPI interface between described first micro-control unit and the described first low-power wireless chip.
6. according to claim 2 or 3 described kilowatt meter reading-out systems based on the low-consumption wireless technology, it is characterized in that, be connected by the SPI interface between described second micro-control unit and the described second low-power wireless chip.
7. the kilowatt meter reading-out system based on the low-consumption wireless technology according to claim 2, it is characterized in that, described metering outfit comprises a pair of pulse port, and described metering outfit is connected with the external interrupt port of described second micro-control unit by described dipulse port; Pointer rotation half-turn when described metering outfit then produces pulsatile once in the port in described dipulse port; Pointer rotation one circle when described metering outfit then produces pulsatile once in the another port in described dipulse port; Described second micro-control unit judges and records the data of described metering outfit according to the pulse number in the described dipulse port.
8. the kilowatt meter reading-out system based on the low-consumption wireless technology according to claim 1 is characterized in that, described second wireless transmitter module and described data acquisition unit carry out exchanges data by the UART interface.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
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| CN102142188A (en) * | 2011-04-07 | 2011-08-03 | 深圳资江实业有限公司 | Gas wireless meter reading system |
| CN102402849A (en) * | 2011-11-12 | 2012-04-04 | 江苏兴航智控科技股份有限公司 | Wireless meter checking system based on FPGA and RF technology |
| CN102592424A (en) * | 2012-02-27 | 2012-07-18 | 苏州明上系统科技有限公司 | Wireless meter reading communication system |
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Patent Citations (5)
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| CN101996478A (en) * | 2009-08-27 | 2011-03-30 | 深圳达实智能股份有限公司 | Wireless network based energy consumption data acquisition system |
| CN102142188A (en) * | 2011-04-07 | 2011-08-03 | 深圳资江实业有限公司 | Gas wireless meter reading system |
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Cited By (1)
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| CN105225454A (en) * | 2015-09-29 | 2016-01-06 | 南京军理科技股份有限公司 | A kind of multi-object off-line data collecting method and system thereof |
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Application publication date: 20130814 |