CN104581907B - Wireless communication device, meter inquiry unit and meter inquiry system - Google Patents
Wireless communication device, meter inquiry unit and meter inquiry system Download PDFInfo
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- CN104581907B CN104581907B CN201510038522.5A CN201510038522A CN104581907B CN 104581907 B CN104581907 B CN 104581907B CN 201510038522 A CN201510038522 A CN 201510038522A CN 104581907 B CN104581907 B CN 104581907B
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- meter
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The present invention provides wireless communication device, meter inquiry unit and meter inquiry systems, are related to communication technique field.Wireless communication device provided by the invention, by the way of non-hardware wake-up, it judges that preset wake up of the data fit in the data packet transmitted by host computer requires by using instruction generation unit is waken up, only local wake up can be just generated when the data fit requirement in data packet to instruct, and then local data processing module is waken up, and it further generates for by the wake-up signal of opposite end data bits, the realizing the wake-up to local data processing module thereby using the mode of soft wake-up and end module being waken up of the task, the work of wake-up is completed in the case where not needing to additionally increase control line, solves deficiency of the prior art.
Description
Technical field
The present invention relates to communication technique fields, are inquired in particular to wireless communication device, meter inquiry unit and meter
System.
Background technology
It is unable to do without consumption to resources such as water, gas and electricity in daily life, what the water meter and gas meter in family consumed family
Water and tolerance count automatically, to form the water energy of the family, gas consumption total amount in certain a period of time.Water conservancy company and day
Ran Qi companies calculate water energy, the natural gas in a period of time according to the result of last meter reading and the difference of this meter reading result
Consumption, and then charge is determined according to unit price.Country's residential area user's counting cost by gas meter mode is mainly copied at present
Visit manual meter reading, meter reading person of table person holds POS and visits meter reading, IC card table etc..Although IC card table preferably solves charging problem,
But unresolved meter reading problem, many enterprises still have to arrange meter reading of manually visiting.Meter reading person visit the meter reading period for two months or
It more months, needs to put into a large amount of human and material resources, and real-time property is poor, it is difficult to analyze the dosage of client according to meter reading data
Changing rule and supply and marketing rate.With the growth of urban population, the increase of skyscraper and the increase of housing vacancy rate, people
Work meter reading workload of visiting increasingly increases, and operating management expenses are stepped up, it is easy to pretermission are occurred, be estimated the problem of copying.In addition, it occupies
People's privacy aware is more and more stronger, conflict, dislike is gradually generated to meter reading of visiting, but also meter reading of visiting is more and more difficult.At this
Under kind background, wireless long-distance meter-reading technology is come into being, and is being risen at home.
Wireless data transmission is the core content of radio meter register, and basic principle is that radio-frequency technique is utilized.Radio frequency
(Radio Frequency) refers to that frequency is higher, available for emitting the frequency of radio, generally often refers to tens to hundreds of megahertzs
Frequency range, i.e. VHF-UHF frequency ranges.
Since wireless communication has, need not to connect up outstanding advantages, the wireless data transmissions such as line, mobility be good more and more wider
Apply to generally cell radio meter register, district vehicles monitoring, remote control, telemetering, small wireless network, access control system, cell notify from a phone call,
Industrial data acquisition system, wireless tag, identification, non-contact RF smart card, micro radio data terminal, fire safety system
In the fields such as system, wireless remote-control system, biological signal collecting, hydrometeorology monitoring, robot control.But wireless communication also has
The shortcomings that prominent：Wireless signal is not bound in the air, can interfere with each other；Transmitting wireless signal will consume larger electric current etc..
For this purpose, China's publication in 1998《Micropower (short distance) wireless device manages temporary provisions》The product for civilian use is wirelessly communicated
Used frequency range and transmission power have stringent limitation, and general 10mW-50mW is interfered with each other, and reduce power consumption with reducing.Its
The transmission power limits value of middle 400-470MHz frequency ranges is 50mW, other frequency range transmission power limits values generally (are removed less than 50mW
Model toy is up to 1W).
The characteristics of cell radio meter register application environment is that (1) meter is interspersed among in complicated residential building, it is desirable that meter reading
Equipment and the communication module of meter have stronger penetration capacity；(2) meter generally samples dry cell power supply, and electricity is limited, again
Meter collector and its wireless module is asked to work in super low-power consumption pattern, i.e. suspend mode as possible.
As shown in Figure 1, wireless module is generally by main control unit 11 (optional), wireless data processing unit 12 and wireless module
13 composition, can high speed transmission data signal, generally all support transparent transmission pattern, i.e., from external equipment data as former state turn
It sends out or receives.In Embedded Application, to reduce power consumption, suspend mode can be entered when wireless data processing unit does not work
State, therefore the first wake on wireless data processing unit necessary before that communicates.
Wireless module in the relevant technologies is waken up using hardware awake by changing the level of certain control pin to send out
Signal is waken up to end module.This wake-up mode requirement host computer has an independent control except data line, power cord
Line, and common apparatus tends not to externally control line as offer, this just greatly limits the use scope of wireless module.
Invention content
In view of this, the embodiment of the present invention is designed to provide wireless communication device, to increase being applicable in for wireless communication device
Range.
In a first aspect, an embodiment of the present invention provides wireless communication device, including：
Main control module, data processing module and wireless module, the main control module include waking up instruction generation unit and call out
Awake unit；
Instruction generation unit is waken up, if the data fit in the data packet transmitted by host computer is preset to wake up requirement,
Generation is local to wake up instruction；
Wakeup unit instructs if receiving local wake up, wakes up data processing module；
Data processing module, for generating the wake-up signal of opposite end data bits；
Wireless module, for being sent to the wake-up signal to end module.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiment of first aspect, wherein, institute
It states main control module and further includes receiving unit, connect with host computer by serial mode, and for obtaining the number that host computer is sent out
According to packet.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiment of first aspect, wherein, institute
Main control module is stated as MCU.
With reference to first aspect, an embodiment of the present invention provides the third possible embodiment of first aspect, wherein, institute
It states main control module and further includes resolution unit and forwarding instruction generation unit,
Resolution unit, for the data packet acquired in receiving unit to be parsed；
Instruction generation unit is forwarded, it is pre- whether the data for judging in the data packet after resolution unit parses meet
If forwarding requirement；
The data processing module includes modulation unit, if forwarding instruction generation unit is judged as YES, modulation unit will
Data generation rf wireless signal in data packet after parsing；
Wireless module is additionally operable to rf wireless signal being sent to end module.
With reference to first aspect, an embodiment of the present invention provides the 4th kind of possible embodiment of first aspect, wherein, it is main
Control module further includes：
Frequency adjusted signal generation unit, if wireless module will not be received in the predetermined time after data packet to be sent transmission
To the replying instruction to end module, then centre frequency adjustment signal is generated.
With reference to first aspect, an embodiment of the present invention provides the 5th kind of possible embodiment of first aspect, wherein, institute
Wake-up instruction generation unit is stated to include：Decision circuitry is instructed, for judging the packet header of the data packet transmitted by host computer or packet tail
Whether preset coding is carried；
It is local to wake up command generating circuit, refer to for when described instruction decision circuitry is judged as YES, generating local wake up
It enables.
With reference to first aspect, an embodiment of the present invention provides the 6th kind of possible embodiment of first aspect, wherein, institute
State main control module include internal data processing unit, for when instruct decision circuitry be judged as NO when, according to host computer institute
The data packet generation local control signal of transmission.
Second aspect, the embodiment of the present invention additionally provide meter inquiry unit, including wireless communication device, further include：For
The ammeter collector or water meter acquiring device or gas meter collector to communicate with the wireless module.
With reference to second aspect, an embodiment of the present invention provides the first possible embodiment of second aspect, wherein, institute
It is multiple to state ammeter collector or the water meter acquiring device or gas meter collector.
The third aspect, an embodiment of the present invention provides meter inquiry systems, including meter inquiry unit, further include wireless
POS modules copy row instruction and meter control instruction, and it is anti-to receive the collector for passing through wireless module to collector transmission
The meter reading gathered data of feedback.
Wireless communication device provided in an embodiment of the present invention, by the way of non-hardware wake-up, with use of the prior art
The mode of hardware awake wakes up wireless module, i.e., sends out wake-up signal by changing the level of certain control pin, call out
It wakes up to end module, and results in the need for increasing an independent control line, and common apparatus is difficult to provide this control line, so as to
It causes the application of wireless module is significantly limited to compare, is judged transmitted by host computer by using instruction generation unit is waken up
Preset wake up of data fit in data packet requires, and only can just generate this when the data fit requirement in data packet
Ground wakes up instruction, and then local data processing module is waken up, and further generates for by the wake-up of opposite end data bits
Signal realizes the wake-up to local data processing module and end module will be called out thereby using the mode of soft wake-up
Awake task completes the work of wake-up in the case where not needing to additionally increase control line, solve it is of the prior art not
Foot.
For the above objects, features and advantages of the present invention is enable to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the general connection figure of wireless module in the relevant technologies；
Fig. 2 shows the elementary wiring diagrams for the wireless communication device that the embodiment of the present invention is provided；
Fig. 3 shows the refinement connection figure for the wireless communication device that the embodiment of the present invention is provided.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be configured to arrange and design with a variety of different herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Go out all other embodiments obtained under the premise of creative work, shall fall within the protection scope of the present invention.
The embodiment of the present invention 1 provides wireless communication device, as shown in Figures 2 and 3, including：
Main control module 101, data processing module 102 and wireless module 103, the main control module 101, which includes waking up, to be instructed
Generation unit 1011 and wakeup unit 1012；
Instruction generation unit 1011 is waken up, if the preset wake-up of data fit in the data packet transmitted by host computer will
It asks, then generates local wake up and instruct；
Wakeup unit 1012 instructs if receiving local wake up, wakes up data processing module 102；
Data processing module 102, for generating for by the wake-up signal of opposite end data bits；
Wireless module 103, for being sent to the wake-up signal to end module.
The use of wireless telecommunications is the technological means that progress remote meter reading must use, thus it is provided by the present invention wireless
Communicator is essential in the carrying out remote meter reading of the task.Relative to traditional technical solution, by hardware awake side
The limitation of formula needs to send out the trigger signal of high level using independent control line, to wake up just in the wireless of sleep stage
Module 103, this be for traditional host computer it is highly difficult, that is, this wireless module 103 be difficult to it is traditional upper
Position machine matches.
In view of this, wireless communication device provided by the present invention can be waken up by way of identification code.Wireless telecommunications
Wake-up instruction generation unit 1011 in device can be according to the data packet transmitted by host computer to determine whether needing to generate local
Wake up instruction.Instruction or data are carried in the data packet that host computer is sent, such as waking up instruction can be in the packet header of data packet
Go out the message code added with identification, so that waking up instruction generation unit 1011 more can quickly identify the instruction.
Data processing module 102 under sleep pattern is that energy consumption is relatively low, but is then said when needing to wake up the module
The bright transmitting-receiving that the module is needed to carry out data, therefore, then should be full when wakeup unit 1012 receives local wake-up instruction
Face log-on data processing module 102.Also, after the startup of data processing module 102, illustrate its needs and other opposite ends mould
Block carries out data interaction, therefore, it is also desirable to the wake-up signal pre-set are sent to opposite end mould by wireless module 103
Block, to end module in full according to acquisition module (collector), so that data acquisition module can acquire the meter number of user in real time
According to, and pass through the interaction of the progress data of wireless module 103 with wireless communication device.
By using the mode of soft wake-up, data processing module can be carried out under the premise of additional control line is not added
102 whole wake-up work can also play certain encryption and make by setting written in code mode or code arrangement mode
With so as to ensure that wireless communication device provided by the present invention can normally carry out data transmission work and be not at data to pass
Can normally enter when defeated work sleep stage (as within a certain period of time without data transmit-receive, then can be stopped,
Into sleep stage).
The mode of specifically used soft wake-up can illustrate the frame format used by the following table 1.Table 1：Communication frame format
As control code FC can specify that：
(1) " AT ", control instruction：Host computer issues the control instruction of RF wireless modules 103, without sending outward；
(2) other code-transparent transmissions：RF wireless modules 103 (wireless communication device) directly forward outward.
Specifically, the main control module 101 further includes receiving unit, it is connect with host computer by serial mode, and be used for
Obtain the data packet that host computer is sent out.
Serial communication can be relatively simple realization telecommunication, relevant communication protocol such as IEEE488.
Specifically, the main control module 101 is MCU.MCU (micro-control unit), can by CPU, RAM of computer,
ROM, timer conter and a variety of I/O Interface integrations on one chip, form the computer of chip-scale, so as to carry out data
Change its function according to the needs of different use environments when interaction and processing convenient for user.
As shown in figure 3, main control module further includes resolution unit 1013 and forwarding instruction generation unit 1014,
Resolution unit 1013, for the data packet acquired in receiving unit to be parsed；
Forward instruction generation unit 1014, for judge by resolution unit 1013 parsing after data packet in data be
It is no to meet preset forwarding requirement；
The data processing module includes modulation unit 1021, if forwarding instruction generation unit 1014 is judged as YES, adjusts
Data in data packet after parsing are generated rf wireless signal by unit 1021 processed；
Wireless module 103 is additionally operable to rf wireless signal being sent to end module.
The present invention can also be sent to reply mechanism to verify 103 institute of wireless module whether is received to end module by setting
The signal sent out, specifically, main control module 101 further includes frequency adjusted signal generation unit, if wireless module 103 will be to be sent
The replying instruction to end module is not received in predetermined time after data packet transmission, then generates antenna frequencies adjustment signal.
It needs to set to end module before use, end module is just needed to return at once after corresponding signal is received
It answers confirmation message or (correctness can be marked in the signal in transmission in the correctness that ensure that received signal
Check code) it replys again later.
Further, instruction generation unit 1011 is waken up to include：Decision circuitry is instructed, for judging the number transmitted by host computer
Preset coding whether is carried according to the packet header or packet tail of packet；
It is local to wake up command generating circuit, refer to for when described instruction decision circuitry is judged as YES, generating local wake up
It enables.
Namely can in data packet whether carry the coding specified (code) by way of, to judge host computer
Whether transmitted data packet needs to use data processing module 102 and wake up to end module.Specifically, data packet can be
Packet header, packet tail or other positions with apparent feature carry the code specified, so that instruction decision circuitry can be known
Not, and then control whether local wake-up command generating circuit works.Specific addition can be as in the code of packet header or packet tail
The code of the labeleds such as " A ", " T "
Specifically, the data packet transmitted by host computer can be divided into two kinds, the first is to wake up to instruct this kind of signal, is met
When to this type, need, by waking up local data processing module 102 and by wake instruction to end module, to make local
Data communication can be carried out with opposite end.Second is the instruction for needing inter-process, this kind of to instruct when being handled then
It does not need to include internal data processing unit using data processing module 102, that is, main control module 101, for when instruction sentencing
When deenergizing is judged as NO, the data packet generation local control signal according to transmitted by host computer.Local control signal is only
By being handled inside wireless communication device, that is, do not need to use data processing module 102 and wireless module 103.
Also there is no need to wake up data processing module 102 in this way.
The scope of application of wireless communication device provided by the present invention：
■ ammeters, the wireless of water meter gas meter are made a copy for.
The intelligent wireless terminal such as ■ wireless POS machines, PDA.
■ fire-fightings, security protection, calculator room equipment wireless monitor, access control system
■ traffic, meteorology, environmental data collecting.
■ intelligent residential districts, building automatic, parking lot vehicle management.
The wireless control of the industrial automations such as ■ intelligence instruments, PLC.
■ material flow trackings, warehouse inspection.
■ oil fields, gas field, the hydrology, mine data acquisition.
The performance indicator of wireless communication device provided by the present invention is as follows：
1, wide frequency ranges：240MHz~930MHz substantially meets the various communication frequency requirements of below 1G；
2, receiving sensitivity：-116dBm；
3, peak power output：+20dBm(100mW)；
4, low-power consumption：18.5mA is received, sends 25mA@+10dBm；65mA@+17dBm；
5, data rate：1200~38400Bit/s；
6, modulation system：GFSK；
7, low-work voltage：1.8~3.6V is very suitable for battery powered environment；
8, suspend mode operating mode：Super low-power consumption, less than 20 μ A；
9, frequency calibration function：Automatically；
10, data volume：Big data quantity is sent, unlimited data packet length；
11, wide temperature working range：- 40 DEG C~+85 DEG C.
The embodiment of the present invention 2 provides meter inquiry unit, as shown in Figure 2,3, is provided including such as embodiment 1 wireless
Communicator further includes ammeter collector for communicating with the wireless module 103 or water meter acquiring device or gas meter collector.
Wireless communication device can be applied in the relevant application environments such as ammeter inquiry, water meter inquiry or gas meter inquiry,
When meter inquiry is carried out, can acquisition instructions first be sent out to collector, after collector receives acquisition instructions, just
Can phase be sent to wireless communication device (the particularly wireless module 103 in wireless communication device) according to the reading of current meter
The data answered, wireless communication device and then can be by the data forwarding to host computer.
Specifically, a wireless communication device can be acquired with multiple ammeter collectors or the water meter acquiring device or gas meter
Device is corresponding, certainly, when sending or receiving data, needs to carry the identification code of upper each meter, it is, described
Ammeter collector or the water meter acquiring device or gas meter collector are multiple.
The embodiment of the present invention 3 provides meter inquiry system, including the meter inquiry unit that embodiment 2 is provided, also wraps
Wireless POS module is included, for the meter acquisition signal generation metering data according to transmitted by wireless module.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention described should be subject to the protection scope in claims.
Claims (8)
1. wireless communication device, which is characterized in that including：
Main control module, data processing module and wireless module, the main control module include waking up instruction generation unit and wake up single
Member；
Instruction generation unit is waken up, if the data fit in the data packet transmitted by host computer is preset to wake up requirement, is generated
It is local to wake up instruction；
Wakeup unit instructs if receiving local wake up, wakes up data processing module；
Data processing module, for generating the wake-up signal of opposite end data bits；
Wireless module, for being sent to the wake-up signal to end module；
The main control module further includes receiving unit, is connect with host computer by serial mode, and is sent out for obtaining host computer
The data packet gone out；
The main control module further includes resolution unit and forwarding instruction generation unit,
Resolution unit, for the data packet acquired in receiving unit to be parsed；
Instruction generation unit is forwarded, it is preset whether the data for judging in the data packet after resolution unit parses meet
Forwarding requirement；
The data processing module includes modulation unit, if forwarding instruction generation unit is judged as YES, modulation unit will parse
Data generation rf wireless signal in data packet afterwards；
Wireless module is additionally operable to rf wireless signal being sent to end module.
2. wireless communication device as described in claim 1, which is characterized in that the main control module is MCU.
3. wireless communication device as described in claim 1, which is characterized in that main control module further includes：
Frequency adjusted signal generation unit, if wireless module will data packet to be sent send after predetermined time in do not receive pair
The replying instruction of end module then generates centre frequency adjustment signal.
4. wireless communication device as described in claim 1, which is characterized in that the wake-up instruction generation unit includes：Instruction is sentenced
Deenergizing, for judging whether the packet header of the data packet transmitted by host computer or packet tail carry preset coding；
It is local to wake up command generating circuit, for when described instruction decision circuitry is judged as YES, generating local wake-up instruction.
5. wireless communication device as claimed in claim 4, which is characterized in that it is single that the main control module includes internal data processing
Member, for when decision circuitry is instructed to be judged as NO, the data packet according to transmitted by host computer to generate local control signal.
6. meter inquiry unit, including such as claim 1-5 any one of them wireless communication device, which is characterized in that further include：
For the ammeter collector or water meter acquiring device or gas meter collector to communicate with the wireless module.
7. meter inquiry unit as claimed in claim 6, which is characterized in that the ammeter collector or water meter acquisition
Device or gas meter collector are multiple.
8. meter inquiry system, including meter inquiry unit as claimed in claims 6 or 7, which is characterized in that further include wireless
POS modules copy row instruction and meter control instruction, and it is anti-to receive the collector for passing through wireless module to collector transmission
The meter reading gathered data of feedback.
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| CN201510038522.5A CN104581907B (en) | 2015-01-26 | 2015-01-26 | Wireless communication device, meter inquiry unit and meter inquiry system |
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| CN110382806B (en) | 2017-03-02 | 2022-06-07 | 开利公司 | Access control system with dynamic performance tuning |
| CN108088519A (en) * | 2017-12-28 | 2018-05-29 | 东本电气科技(苏州)有限公司 | A kind of wireless telemetering gas-meter Rouser and awakening method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204559893U (en) * | 2015-01-26 | 2015-08-12 | 北京迪创伟业科技有限公司 | Wireless communication device, table meter inquiry unit and table meter inquiry system |
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| US8824346B2 (en) * | 2011-02-23 | 2014-09-02 | Lg Electronics Inc. | Remote wakeup of application processor of mobile device |
| AU2012244170A1 (en) * | 2011-10-26 | 2013-05-09 | Elster Solutions, Llc | Meter data collection |
| CN103021154B (en) * | 2012-12-26 | 2014-08-06 | 西南大学 | Wireless meter reading system based on Ad Hoc |
| CN103702188A (en) * | 2013-12-06 | 2014-04-02 | 乐视致新电子科技（天津）有限公司 | Intelligent television and remote wakening method thereof |
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