CN104581907A - Wireless communicator, meter inquiry device and meter inquiry system - Google Patents
Wireless communicator, meter inquiry device and meter inquiry system Download PDFInfo
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- CN104581907A CN104581907A CN201510038522.5A CN201510038522A CN104581907A CN 104581907 A CN104581907 A CN 104581907A CN 201510038522 A CN201510038522 A CN 201510038522A CN 104581907 A CN104581907 A CN 104581907A
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- wireless
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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
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- 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
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- 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 invention provides a wireless communicator, a meter inquiry device and a meter inquiry system, and relates to the technical field of communication. A non-hardware wakeup mode is adopted for the wireless communicator, through using a wakeup instruction generating unit, whether data in a data packet transmitted by an upper computer meet a preset wakeup requirement is judged, a local wakeup instruction can be generated only when the data in the data packet meet the requirement, then a local data processing module is waken up, and a wakeup signal for waking up an opposite end module is generated; in this way, the soft wakeup mode is adopted for waking up the local data processing module and the opposite end module, wakeup is completed under the condition that control lines do not need to be additionally arranged, and the defects in the prior art are overcome.
Description
Technical field
The present invention relates to communication technique field, in particular to wireless communication device, table meter inquiry unit and table meter inquiry 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 Data Transmission is the core content of radio meter register, and its general principle make use of radio-frequency technique.Radio frequency (Radio Frequency) refers to that frequency is higher, can be used for launching wireless frequency, and general normal finger tens arrives the frequency range of hundreds of megahertz, i.e. VHF-UHF frequency range.
Because radio communication has without the need to outstanding advantages such as the line that connects up, mobility are good, Wireless Data Transmission applies in the field such as community radio meter register, district vehicles monitoring, remote control, remote measurement, small wireless network, gate control system, community call, industrial data acquisition system, wireless identification tag, identification, non-contact RF smart card, micro radio data terminal, fire safety system, wireless remote-control system, biological signal collecting, hydrometeorology monitoring, robot controlling more and more widely.But radio communication also has outstanding shortcoming: wireless signal does not aloft carry the baby, can interfere with each other; Wireless signal emission will consume larger electric current etc.For this reason, the frequency range that " micropower (short distance) wireless device management temporary provisions " that China 1998 issues use product for civilian use radio communication and transmitting power have strict restriction, general 10mW-50mW, to reduce mutual interference, and reduces power consumption.Wherein the transmitting power limits value of 400-470MHz frequency range is 50mW, and other band transmit power limit are generally lower than 50mW (except model toy can reach 1W).
The feature of community radio meter register applied environment is, (1) table meter intersperses among in baroque residential building, requires that the communication module of kilowatt meter recorder and table meter has stronger penetration capacity; (2) dry cell power supply of generally sampling counted by table, and electricity is limited, and requirement table meter collector and wireless module thereof work in super low-power consumption pattern as far as possible again, i.e. park mode.
As shown in Figure 1, wireless module is generally made up of main control unit 11 (optional), wireless data processing unit 12 and wireless module 13, can high speed transmission data signal, generally all support transparent transmission pattern, namely the data former state from external equipment is forwarded or received into.In Embedded Application, for reducing power consumption, when wireless data processing unit does not work, can resting state be entered, therefore must first wake on wireless data processing unit before communication.
Wireless module in correlation technique adopts hardware awake, and the level namely controlling pin by changing certain sends wake-up signal, wakes opposite end module up.This wake-up mode requires that host computer has an independently control line outside data wire, power line, and common apparatus often externally can not provide such control line, and this just greatly limit the scope of application of wireless module.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide wireless communication device, to increase the scope of application of wireless communication device.
First aspect, embodiments provides wireless communication device, comprising:
Main control module, data processing module and wireless module, described main control module comprises and wakes instruction generation unit and wakeup unit up;
Wake instruction generation unit up, if the data fit in the packet that sends of host computer preset wake requirement up, then generate this locality and wake instruction up;
Wakeup unit, if receive this locality to wake instruction up, then wakes data processing module up;
Data processing module, for generating the wake-up signal of opposite end data bits;
Wireless module, for being sent to opposite end module by described wake-up signal.
In conjunction with first aspect, embodiments provide the first possible execution mode of first aspect, wherein, described main control module also comprises receiving element, is connected by serial mode with host computer, and for obtaining the packet that host computer sends.
In conjunction with first aspect, embodiments provide the execution mode that the second of first aspect is possible, wherein, described main control module is MCU.
In conjunction with first aspect, embodiments provide the third possible execution mode of first aspect, wherein, described main control module also comprises resolution unit and forwards instruction generation unit,
Resolution unit, resolves for the packet obtained by receiving element;
Forward instruction generation unit, for judging whether the data in the packet after resolution unit is resolved meet default forwarding requirement;
Described data processing module comprises modulating unit, and be judged as YES if forward instruction generation unit, then modulating unit is by the data genaration rf wireless signal in the packet after parsing;
Wireless module, also for rf wireless signal is sent to opposite end module.
In conjunction with first aspect, embodiments provide the 4th kind of possible execution mode of first aspect, wherein, main control module also comprises:
Frequency adjusted signal generation unit, if wireless module will not receive the reply instruction of opposite end module in the scheduled time after Packet Generation to be sent, then generating center frequency adjusted signal.
In conjunction with first aspect, embodiments provide the 5th kind of possible execution mode of first aspect, wherein, wake instruction generation unit up described in comprise: whether instruction decision circuitry, carry default coding for the packet header or bag tail judging the packet that host computer sends;
This locality wakes command generating circuit up, for when described instruction decision circuitry is judged as YES, generates this locality and wakes instruction up.
In conjunction with first aspect, embodiments provide the 6th kind of possible execution mode of first aspect, wherein, described main control module comprises internal data processing unit, for when instruction decision circuitry is judged as NO time, generate local control signal according to the packet that host computer sends.
Second aspect, the embodiment of the present invention additionally provides table meter inquiry unit, comprises wireless communication device, also comprises: for the ammeter collector communicated with described wireless module, or water meter acquiring device, or gas meter collector.
In conjunction with second aspect, embodiments provide the first possible execution mode of second aspect, wherein, described ammeter collector, or described water meter acquiring device, or gas meter collector is multiple.
The third aspect, embodiments provide table meter inquiry system, comprise table meter inquiry unit, also comprise wireless POS module, for copying row instruction and table meter control command by wireless module to collector transmission, and receive the image data of checking meter of described collector feedback.
The wireless communication device that the embodiment of the present invention provides, adopt the mode that non-hardware is waken up, with the mode of use hardware awake of the prior art, wireless module is waken up, namely the level controlling pin by changing certain sends wake-up signal, wake opposite end module up, and cause needing increase by independently control line, and common apparatus is difficult to provide this control line, thus cause that the application of wireless module is greatly limited to be compared, its by use wake that instruction generation unit judges that data fit in the packet that host computer sends presets up wake requirement up, only have and just can generate this locality and wake instruction up when the data fit in packet requires time, and then the data processing module of this locality is waken up, and generation is used for the wake-up signal of opposite end data bits further, thus employ the soft mode waken up and achieve waking up and opposite end module being waken up of task to local data processing module, when not needing to complete the work waken up when additionally increasing control line, solve deficiency of the prior art.
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 general connection layout of wireless module in correlation technique;
Fig. 2 shows the elementary wiring diagram of the wireless communication device that the embodiment of the present invention provides;
Fig. 3 shows the refinement connection layout of the wireless communication device 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.
The embodiment of the present invention 1 provides wireless communication device, as shown in Figures 2 and 3, comprising:
Main control module 101, data processing module 102 and wireless module 103, described main control module 101 comprises and wakes instruction generation unit 1011 and wakeup unit 1012 up;
Wake instruction generation unit 1011 up, if the data fit in the packet that sends of host computer preset wake requirement up, then generate this locality and wake instruction up;
Wakeup unit 1012, if receive this locality to wake instruction up, then wakes data processing module 102 up;
Data processing module 102, for generating for the wake-up signal by opposite end data bits;
Wireless module 103, for being sent to opposite end module by described wake-up signal.
Use wireless telecommunications to be carry out the technological means that remote meter reading must use, thus wireless communication device provided by the present invention is absolutely necessary in the task of carrying out remote meter reading.Relative to traditional technical scheme, be subject to the restriction of hardware awake mode, need use independently control line to send the triggering signal of high level, to wake up just at the wireless module 103 of sleep stage, this is very difficult for traditional host computer, and namely this wireless module 103 is difficult to match with traditional host computer.
In view of this, wireless communication device provided by the present invention can be waken up by the mode of identification code.The packet that instruction generation unit 1011 can send according to host computer that wakes up in wireless communication device judges whether that needing to generate this locality wakes instruction up.Instruction is carried in the packet that host computer sends, or data, the message code of identification can be gone out be added with in the packet header of packet as waken instruction up, this instruction can be identified comparatively fast to make waking instruction generation unit 1011 up.
Data processing module 102 under sleep pattern is that energy consumption is lower, but when needing to wake this module up, the transmitting-receiving needing this module to carry out data is then described, therefore, when wakeup unit 1012 receive this locality wake instruction up time, then should log-on data processing module 102 comprehensively.And, after data processing module 102 starts, illustrate that it needs to carry out data interaction with other opposite end module, therefore, also need, by wireless module 103, the wake-up signal pre-set is sent to opposite end module, opposite end module, as data acquisition module (collector), counts with the table of the collection user enabling data acquisition module real-time, and carries out the mutual of data with wireless communication device by wireless module 103.
By using the soft mode waken up, the whole of data processing module 102 can be carried out under the prerequisite not adding extra control line and wake work up, mode can also be write by setting code, or code arrangement mode plays certain encryption effect, thus ensure that wireless communication device provided by the present invention can enter sleep stage normally (as not having data transmit-receive within a certain period of time when can carry out transfer of data work normally and not be in transfer of data work, then can quit work, enter sleep stage).
The soft mode waken up of concrete use can illustrate the frame format of use by following table 1.Table 1: communication frame format
As control code FC can specify:
(1) " AT ", control command: host computer issues the control command of RF wireless module 103, without the need to sending outward;
(2) other code-transparent transmissions: RF wireless module 103 (wireless communication device) directly forwards outward.
Concrete, described main control module 101 also comprises receiving element, is connected by serial mode with host computer, and for obtaining the packet that host computer sends.
Serial communication can be comparatively easy realize telecommunication, relevant communication protocol is as IEEE488.
Concrete, described main control module 101 is MCU.MCU (micro-control unit), can by the CPU of computer, RAM, ROM, timer conter and multiple I/O Interface integration on one chip, form the computer of chip-scale, thus be convenient to user when carrying out data interaction and process and change its function according to the needs of different environment for use.
As shown in Figure 3, main control module also comprises resolution unit 1013 and forwards instruction generation unit 1014,
Resolution unit 1013, resolves for the packet obtained by receiving element;
Forward instruction generation unit 1014, for judging whether the data in the packet after resolution unit 1013 is resolved meet default forwarding requirement;
Described data processing module comprises modulating unit 1021, and be judged as YES if forward instruction generation unit 1014, then modulating unit 1021 is by the data genaration rf wireless signal in the packet after parsing;
Wireless module 103, also for rf wireless signal is sent to opposite end module.
The present invention can also send to by setting the mechanism of reply and verify the signal whether opposite end module receives wireless module 103 and send, concrete, main control module 101 also comprises frequency adjusted signal generation unit, if wireless module 103 will not receive the reply instruction of opposite end module in the scheduled time after Packet Generation to be sent, then generate antenna frequencies adjustment signal.
Need before using to set in opposite end module, opposite end module just needs to reply confirmation after receiving corresponding signal at once, also can be to reply after the correctness that ensure that received signal (can mark correctness check code in the signal sent) again.
Further, wake instruction generation unit 1011 up and comprise: instruction decision circuitry, whether carry default coding for the packet header or bag tail judging the packet that host computer sends;
This locality wakes command generating circuit up, for when described instruction decision circuitry is judged as YES, generates this locality and wakes instruction up.
The mode of the coding (code) namely by whether carrying in packet can specified, judges that packet that host computer sends is the need of using data processing module 102 and waking opposite end module up.Concrete, packet can in packet header, bag tail or other positions with obvious feature carry the code of specifying, to enable instruction decision circuitry identify, and then control this locality and wake command generating circuit up and whether work.The code being specifically added on packet header or bag tail can as the code of the labeled such as " A ", " T "
Concrete, the packet that host computer sends can be divided into two kinds, and the first wakes this kind of signal of instruction up, when running into this type, need, by waking local data processing module 102 up and waking opposite end module up by instruction, to enable this locality carry out data communication with opposite end.The second is the instruction needing inter-process, this kind of instruction does not then need usage data processing module 102 when processing, namely main control module 101 comprises internal data processing unit, for when instruction decision circuitry is judged as NO time, generate local control signal according to the packet that host computer sends.Local control signal is only undertaken processing by wireless communication device inside, does not namely need to use data processing module 102 and wireless module 103.So just do not need to wake data processing module 102 up yet.
The scope of application of wireless communication device provided by the present invention:
■ ammeter, the wireless of water meter gas meter are made a copy for.
■ wireless POS machine, the intelligent wireless terminals such as PDA.
■ fire-fighting, security protection, calculator room equipment wireless monitor, gate control system
■ traffic, meteorology, environmental data collecting.
■ intelligent residential district, building automatic, parking lot vehicle management.
The controlled in wireless of the industrial automations such as ■ intelligent instrument, PLC.
■ material flow tracking, warehouse are patrolled and examined.
■ oil field, gas field, the hydrology, mine data collection.
The performance index of wireless communication device provided by the present invention are as follows:
1, wide frequency ranges: 240MHz ~ 930MHz, meets the various communication frequency requirement of below 1G substantially;
2, receiving sensitivity :-116dBm;
3, peak power output :+20dBm (100mW);
4, low-power consumption: receive 18.5mA, 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 powered battery environment;
8, dormancy mode of operation: super low-power consumption, is less than 20 μ A;
9, frequency calibration function: automatically;
10, data volume: big data quantity sends, and does not limit data packet length;
11, wide temperature working range :-40 DEG C ~+85 DEG C.
The embodiment of the present invention 2 provides table meter inquiry unit, as shown in Figure 2,3, comprise as embodiment 1 the wireless communication device that provides, also comprise the ammeter collector for communicating with described wireless module 103, or water meter acquiring device, or gas meter collector.
Wireless communication device can be applied in ammeter inquiry, water meter inquiry, or in the applied environment that gas meter inquiry etc. are relevant, when carrying out the inquiry of table meter, first can send acquisition instructions to collector, after collector receives acquisition instructions, just according to the reading of current table meter, corresponding data can be sent to wireless communication device (wireless module 103 particularly in wireless communication device), wireless communication device and then can by this data retransmission to host computer.
Concrete, wireless communication device can with multiple ammeter collector, or described water meter acquiring device, or gas meter collector is corresponding, certainly, in transmission or when accepting data, need the identification code of carrying each table meter, namely, described ammeter collector, or described water meter acquiring device, or gas meter collector is multiple.
The embodiment of the present invention 3 provides table meter inquiry system, comprises the table meter inquiry unit that embodiment 2 provides, also comprises wireless POS module, generates metering data for the table meter collection signal sent according to wireless module.
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 range of claim.
Claims (10)
1. wireless communication device, is characterized in that, comprising:
Main control module, data processing module and wireless module, described main control module comprises and wakes instruction generation unit and wakeup unit up;
Wake instruction generation unit up, if the data fit in the packet that sends of host computer preset wake requirement up, then generate this locality and wake instruction up;
Wakeup unit, if receive this locality to wake instruction up, then wakes data processing module up;
Data processing module, for generating the wake-up signal of opposite end data bits;
Wireless module, for being sent to opposite end module by described wake-up signal.
2. wireless communication device as claimed in claim 1, it is characterized in that, described main control module also comprises receiving element, is connected by serial mode with host computer, and for obtaining the packet that host computer sends.
3. wireless communication device as claimed in claim 1, it is characterized in that, described main control module is MCU.
4. wireless communication device as claimed in claim 2, is characterized in that, described main control module also comprises resolution unit and forwards instruction generation unit,
Resolution unit, resolves for the packet obtained by receiving element;
Forward instruction generation unit, for judging whether the data in the packet after resolution unit is resolved meet default forwarding requirement;
Described data processing module comprises modulating unit, and be judged as YES if forward instruction generation unit, then modulating unit is by the data genaration rf wireless signal in the packet after parsing;
Wireless module, also for rf wireless signal is sent to opposite end module.
5. wireless communication device as claimed in claim 4, it is characterized in that, main control module also comprises:
Frequency adjusted signal generation unit, if wireless module will not receive the reply instruction of opposite end module in the scheduled time after Packet Generation to be sent, then generating center frequency adjusted signal.
6. wireless communication device as claimed in claim 4, is characterized in that, described in wake instruction generation unit up and comprise: whether instruction decision circuitry, carry default coding for the packet header or bag tail judging the packet that host computer sends;
This locality wakes command generating circuit up, and for when described instruction decision circuitry is judged as YES, Shanghai wakes instruction up.
7. wireless communication device as claimed in claim 6, it is characterized in that, described main control module comprises internal data processing unit, for when instruction decision circuitry is judged as NO time, generates local control signal according to the packet that host computer sends.
8. table meter inquiry unit, comprises the wireless communication device as described in any one of claim 1-7, it is characterized in that, also comprise: for the ammeter collector communicated with described wireless module, or water meter acquiring device, or gas meter collector.
9. table meter inquiry unit as claimed in claim 8, it is characterized in that, described ammeter collector, or described water meter acquiring device, or gas meter collector is multiple.
10. table meter inquiry system, comprise table meter inquiry unit as claimed in claim 8 or 9, it is characterized in that, also comprise wireless POS module, for copying row instruction and table meter control command by wireless module to collector transmission, and receive the image data of checking meter of described collector 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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| CN201510038522.5A CN104581907B (en) | 2015-01-26 | 2015-01-26 | Wireless communication device, meter inquiry unit and meter inquiry system |
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| CN110382806A (en) * | 2017-03-02 | 2019-10-25 | 开利公司 | Access control system with dynamic property tuning |
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| Publication number | Publication date |
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| CN104581907B (en) | 2018-07-06 |
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