CN203313168U - Signal sending device and signal receiving device used for wireless communication - Google Patents
Signal sending device and signal receiving device used for wireless communication Download PDFInfo
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- CN203313168U CN203313168U CN2013201588844U CN201320158884U CN203313168U CN 203313168 U CN203313168 U CN 203313168U CN 2013201588844 U CN2013201588844 U CN 2013201588844U CN 201320158884 U CN201320158884 U CN 201320158884U CN 203313168 U CN203313168 U CN 203313168U
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Abstract
The invention relates to a signal sending device and a signal receiving device, which are used for wireless communication. The signal sending device includes: a Zigbee radio-frequency signal sender used for sending radio-frequency signals; a signal adjustment device which is configured to be electrically connected with the Zigbee radio-frequency signal sender and is used for adjusting output signals of the Zigbee radio-frequency signal sender; and an antenna which is configured to be electrically connected with the signal adjusting device and is used for receiving output signals of the signal adjusting device and sending the output signals of the signal adjusting device. The signal receiving device includes the antenna used for receiving signals from the signal sending device; the signal adjusting device which is configured to be electrically connected with the antenna and is used for receiving and adjusting output signals of the antenna; and a Zigbee radio-frequency signal receiver which is configured to be electrically connected with the signal adjusting device and is used for receiving the output signals of the signal adjusting device. The signal sending device and the signal receiving device, which are used for the wireless communication, enable communication distance and receiving sensitivity of a Zigbee network to be improved so that effective wireless communication is realized under a condition that power consumption is low.
Description
Technical field
The invention belongs to wireless communication field, especially a kind of signal receiving/transmission device for radio communication.
Background technology
Along with the development of Smart Home, can realize according to predetermined regular concentrated area, automatically controlling intelligent household appliances controlled.Zigbee is based on a low-power consumption territory fidonetFido of IEEE802.15.4 standard, is characterized in closely, low complex degree, self-organizing, low-power consumption, low data rate, low cost.Due to the characteristic of Zigbee agreement, be suitable for automatically controlling and remote control field, can embed various device, in particular for the Smart Home aspect.
For the household electrical appliance without any remote control (such as electric heater etc.), if need to carry out centralized control to these household electrical appliance, can only realize by the mode of direct connection and closed Power supply.Had at present a lot of household electrical appliance integrated interface such as USB, by this interface reading external data or reception control signal.
Because the factor that affects signal transmission is a lot, for example distance, position, barrier etc., traditional low-consumption wireless equipment, such as Zigbee equipment, when communication, often have transmit not strong, or the problem of received signal strength a little less than too.Traditional solution is to adopt ceramic antenna or the external antenna increase gain that transmits, but, because antenna polarization direction or coverage limit, is difficult to reach ideal effect.In addition, can promote transmitting power by the power consumption that improves communication equipment, and then guarantee efficient communication, but the increase of the power consumption of bringing also easily causes the waste of resource.
Therefore be badly in need of a kind of Zigbee communication equipment that can make under the prerequisite of low-power consumption, can realize long technology apart from efficient communication.
Summary of the invention
Based on above consideration, if propose the device of efficient communication between a kind of Zigbee communication module that can realize easily apart from each other, will be very favorable.
According to a first aspect of the invention, proposed a kind of sender unit for radio communication, having comprised: Zigbee radiofrequency signal transmitter, be used to sending radiofrequency signal; Sig-nal-conditioning unit, it is constructed to be electrically connected to described Zigbee radiofrequency signal transmitter, adjusts for the output signal to described Zigbee radiofrequency signal transmitter; Antenna, it is constructed to be electrically connected to described sig-nal-conditioning unit, be used to receiving the output signal of described sig-nal-conditioning unit, and sends subsequently the output signal of described sig-nal-conditioning unit.
According to the solution of the present invention, sig-nal-conditioning unit can carry out different signal works for the treatment of as required, makes antenna can export the signal that meets different demands.
According to one embodiment of present invention, sender unit is characterized in that, also comprise chromacoder, it is constructed to be connected between described Zigbee radiofrequency signal transmitter and described sig-nal-conditioning unit, for being converted to single-ended signal by the double-end signal of described Zigbee radiofrequency signal transmitter output or meeting the double-end signal of predetermined condition.
In foundation one embodiment of the present of invention, described predetermined condition comprises that the double-end signal of described chromacoder output and the double-end signal that described Zigbee radiofrequency signal transmitter is exported are predetermined ratio.
In foundation one embodiment of the present of invention, described chromacoder is the balance-to-nonbalance converter of reversible.
In foundation one embodiment of the present of invention, in described sig-nal-conditioning unit, be provided with Power Conditioning Unit, it is constructed to described chromacoder, be connected with described antenna electric respectively, for the output of described chromacoder is carried out to power adjustments, will export through the signal of power adjustments described antenna to subsequently.
Thus, the transmitting power of antenna can be adjusted as required, and the overall power of sender unit need not be obviously improved.
In foundation one embodiment of the present of invention, between described Power Conditioning Unit and described antenna, be provided with low-pass filter, it is constructed to transmit the signal of preset frequency, and with described Power Conditioning Unit, be connected with described antenna electric respectively, described low-pass filter is for carrying out low-pass filtering to the output signal that receives described Power Conditioning Unit, and export the signal after low-pass filtering to described antenna, so that described antenna can send the signal of described preset frequency.
Thus, the high order harmonic component can filtering produced because of environment or circuit self, reduced interference, makes the signal of communication that is sent to antenna more accurate.
In foundation one embodiment of the present of invention, described Power Conditioning Unit is power amplifier, with increase, is sent to the power of the signal of communication of described antenna.
So, can improve the power of signal of communication, promote the communication distance of sender unit, reduce the impact that environment brings signal of communication.
According to a further aspect in the invention, also proposed a kind of signal receiving device for radio communication, having comprised: antenna, for receiving the signal from sender unit; Sig-nal-conditioning unit, it is constructed to be connected with described antenna electric, adjusts for the output signal to described antenna; The Zigbee radio frequency signal receiver, it is constructed to be electrically connected to described sig-nal-conditioning unit, be used to receiving the output signal of described sig-nal-conditioning unit.
According to the solution of the present invention, sig-nal-conditioning unit can carry out different signal works for the treatment of as required, makes the Zigbee radio frequency signal receiver can export different signals.
In foundation one embodiment of the present of invention, described signal receiving device also comprises chromacoder, it is constructed to be electrically connected between described Zigbee radio frequency signal receiver and described sig-nal-conditioning unit, for being converted to the double-end signal that meets predetermined condition by the single-ended or double-end signal of described sig-nal-conditioning unit output.
In foundation one embodiment of the present of invention, described predetermined condition comprises that the double-end signal of described signal adjustment conversion equipment output and the double-end signal that described chromacoder is exported are predetermined ratio.
In foundation one embodiment of the present of invention, described chromacoder is the balance-to-nonbalance converter of reversible.
In foundation one embodiment of the present of invention, in described sig-nal-conditioning unit, be provided with signal amplifying apparatus, it is constructed to described chromacoder, be connected with described antenna electric respectively, for the output signal of described antenna is amplified, export the signal after amplifying to described chromacoder subsequently.
So can be convenient to application so that the small-signal that signal receiving device can receive correspondingly increases, also can correspondingly improve receiving sensitivity.
In foundation one embodiment of the present of invention, described signal amplifying apparatus is low noise amplifier.
So can make communication equipment in the situation that signal of communication is very faint, receiving communication signal accurately still, thus improved receiving sensitivity.
The present invention is by under different operating states, adopt corresponding Zigbee signal method of sending and receiving, communication equipment can promote the power output of signal, scope and the jamproof ability of communication have namely been increased, simultaneously, by adopting low noise amplifier, guaranteed that communication equipment has higher sensitivity.
Various aspects of the present invention are by the explanation of the specific embodiment by hereinafter and more clear.
The accompanying drawing explanation
By the reference accompanying drawing, read following detailed description to non-limiting example, other features, objects and advantages of the present invention will become more obvious.
Fig. 1 shows the communication equipment schematic diagram according to the first embodiment of the present invention;
Fig. 2 shows the communication equipment schematic diagram according to the second embodiment of the present invention.
In the drawings, run through different diagrams, same or similar Reference numeral means same or analogous device (module) or step.
Embodiment
In the specific descriptions of following preferred embodiment, with reference to the appended accompanying drawing that forms a part of the present invention.Appended accompanying drawing shows by way of example can realize specific embodiment of the present invention.The embodiment of example is not intended to limit according to all embodiment of the present invention.Be appreciated that and can utilize other embodiment under the prerequisite that does not depart from scope of the present invention, also can carry out the modification of structural or logicality.Therefore, following specific descriptions are also nonrestrictive, and scope of the present invention is limited by appended claim.
Fig. 1 shows the communication equipment schematic diagram according to one embodiment of the present of invention.
Communication equipment 10 shown in Figure 1 comprises radiofrequency signal R-T unit 11, sig-nal-conditioning unit 12 and antenna 13.Wherein, radiofrequency signal R-T unit 11 is for signal of communication being sent to sig-nal-conditioning unit 12, or receives by the signal of communication of antenna 13 from detecting wireless network, processed by sig-nal-conditioning unit 12.Sig-nal-conditioning unit 12 is according to the application demand of communication equipment 10, increases the power of the signal of communication that is sent to antenna 13, or increases by the amplitude of antenna 13 from the signal of communication that detects wireless network.
Those skilled in the art can be understood that, in Fig. 1, only show for the device of understanding necessity of the present invention, and communication equipment also may comprise other devices, such as central control unit, USB device etc.By central control unit, can produce corresponding control command according to the signal that receives or send, by the USB device, communication equipment 10 can be connected with corresponding equipment
Communication equipment 10 is connected to the equipment of required control by the USB device, for example be provided with the TV, air-conditioning of USB interface etc.With after this TV is connected, the user just can pass through equipment access and the corresponding Zigbee networks of communication equipment 10 such as mobile phone, computer, phone, personal digital assistant, remote controller when communication equipment 10, so with this TV and communication.
With under Zigbee network, user's wish is example by the state that mobile phone obtains this TV, sets forth the present embodiment.
The user utilizes mobile phone to send in network and obtains the tv state instruction, the antenna 13 of the communication equipment 10 be connected with this TV will receive the signal of communication that comprises this instruction by Zigbee network, and this signal of communication is sent to sig-nal-conditioning unit 12 processes, for example amplify, signal of communication after sig-nal-conditioning unit 12 will amplify transfers to radiofrequency signal R-T unit 11, and last communication equipment 10 obtains tv state according to this instruction.Now, antenna 13 should be and meets the interface of realizing according to the Zigbee network agreement.
After communication equipment 10 obtains tv state, need this state information is sent to the user by network.Detailed process is as follows: communication equipment 10 generates corresponding signal of communication according to the tv state obtained, by radiofrequency signal R-T unit 11, be sent to sig-nal-conditioning unit 12, after sig-nal-conditioning unit 12 is processed, such as power amplification, transfer to again antenna 13, and then be sent to user's mobile phone.
By said process, the user can obtain the state of TV by mobile phone, communication equipment 10 under Zigbee network, the like, by similar method, also can control this TV.
For setting forth in further detail the present invention, refer to Fig. 2.
Fig. 2 shows the communication equipment schematic diagram according to the second embodiment of the present invention
Communication equipment 10 shown in Figure 2 comprises radiofrequency signal R-T unit 11, sig-nal-conditioning unit 12, antenna 13, the first jockey 14, the second jockey 15 and chromacoder 19.The signal that radiofrequency signal R-T unit 11 sends chromacoder 19 to is double-end signal, chromacoder 19 is converted to single-ended signal by this double-end signal, and then be sent to the first jockey 14, in like manner, chromacoder 19 also can be converted to the single-ended signal from the first jockey 14 double-end signal that meets predetermined condition (being that the double-end signal that signal is adjusted the double-end signal of conversion equipment output and its input is certain ratio), and transfers to radiofrequency signal R-T unit 11.The first jockey 14, the second jockey 15 are controlled selective switch circuit, such as single-pole double-throw switch (SPDT) or have the circuit module that hilted broadsword is thrown function more.Those skilled in the art can be understood that, in Fig. 2, only show for the device of understanding necessity of the present invention, and communication equipment also may comprise other devices, such as central control unit, USB device etc.By central control unit, can produce corresponding control command according to the signal that receives or send, by the USB device, communication equipment 10 can be connected with corresponding equipment.
Above-mentioned chromacoder 19 can pass through balance-to-nonbalance converter (Balun) to be realized, when realizing single both-end switching signal, only need to Balun in the end of coil of output stage be set to fixed potential, can produce single-ended output signal.
Preferably, sig-nal-conditioning unit 12 comprises Power Conditioning Unit 17 and the signal amplifying apparatus 18 be used to amplifying signal of communication be used to adjusting signal of communication power.Wherein, Power Conditioning Unit 17 is for increasing the power that is sent to the signal of communication of antenna 13 by radiofrequency signal R-T unit 14, and signal amplifying apparatus 18 is for amplifying the amplitude that is sent to the signal of communication of radiofrequency signal R-T unit 11 by antenna 13.
The communication equipment 10 of below take respectively is example when emission state and accepting state, set forth the present embodiment.
During at emission state, radiofrequency signal R-T unit 11 is sent to chromacoder 19 by signal of communication, is about to initial double-end signal and is converted to single-ended signal when communication equipment 10, and then this single-ended signal is sent to the first jockey 14.Now, the first jockey 14 is communicated with the input of Power Conditioning Unit 17 by the control of software or hardware, and disconnects with the output of signal amplifying apparatus 18.In like manner, the second jockey 15 is communicated with the output of Power Conditioning Unit 17, and disconnect with the input of signal amplifying apparatus 18, thereby signal of communication can be sent to antenna 13 via the second jockey 15, and do not affect front stage circuits, finally, by antenna 13, this signal of communication is sent, user terminal or other communication equipments 10 be under same Zigbee network just can receive this signal of communication.
When communication equipment 10 during in accepting state, at first by antenna 13 by the Zigbee network receiving communication signal, now the second jockey 15 is communicated with signal amplifying apparatus 18 inputs by software or hardware controls, and with the output disconnection of Power Conditioning Unit 17.In like manner, the output of signal amplifying apparatus 18 is communicated with the first jockey 14, and disconnects with the input of Power Conditioning Unit 17, thereby can not affect the signal of communication received.Chromacoder 19 can receive the signal of communication of being processed by signal amplifying apparatus 18 from the first jockey 14, then this signal of communication is by the conversion of chromacoder 19, realization changes double-end signal into from single-ended signal, and read by radiofrequency signal R-T unit 11, finally feed back to communication equipment 10.Central control unit produces corresponding instruction according to this signal of communication, such as closing television.
In said process, those skilled in the art can be understood that, need only circuit is made to suitable modification, and chromacoder 19 also can be converted to satisfactory double-end signal by initial double-end signal.
Preferably, Power Conditioning Unit 17 is power amplifiers, and it can be by the power of the power ascension of signal of communication to user's appointment.So, can enlarge the scope of application of communication equipment 10, and reduce the requirement to antenna 13, also can further reduce power consumption.Adjustment by 17 pairs of signal of communication power of Power Conditioning Unit, communication equipment 10 can be in the situation that low-power consumption realizes larger transmitting power, thereby the signal emissivities of communication equipment 10 are strengthened, reduce the impact of surrounding environment, such as barrier, distance etc.
After signal of communication is adjusted by Power Conditioning Unit 17, due to circuit, easily be subjected to the impact of environment, self circuit or other factors when the operation, the output of Power Conditioning Unit 17 tends to occur high order harmonic component, these will become interference source.
Preferably, the output of Power Conditioning Unit 17 is connected to the second jockey 15 by the low-pass filter (not shown), so, just the high order harmonic component filtering can be reduced to the impact on signal of communication, guarantees accurately emission signal of communication of antenna 13.
In addition, because barrier, distance have a great impact the decay of wireless signal, when barrier is more or when distant, antenna 13 is generally all fainter from the signal of communication that Zigbee network receives, and the noise factor of common signal amplifier is higher, often can not meet the requirement of communication equipment 10 for sensitivity.
Preferably, signal amplifying apparatus 18 is the low noise amplifiers with low-noise factor, and under the condition of equal gain, the noise factor of signal amplifying apparatus 18 is lower, more accurate signal of communication can be detected, has namely improved the receiving sensitivity of communication equipment 10.
Those skilled in the art can be understood that, above-mentioned Zigbee network is only for example, and not is used for limiting the scope of the invention, and those skilled in the art can, based on thought of the present invention, apply the present invention to the networks such as Wifi, bluetooth.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and in the situation that do not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, in any case, all should regard embodiment as exemplary, and be nonrestrictive.In addition, significantly, " comprising ", other elements and step do not got rid of in a word, and wording " one " is not got rid of plural number.A plurality of elements of stating in the device claim also can be realized by an element.The first, the second word such as grade is used for meaning title, and does not mean any specific order.
Claims (13)
1. the sender unit for radio communication, is characterized in that, comprising:
Zigbee radiofrequency signal transmitter, be used to sending radiofrequency signal;
Sig-nal-conditioning unit, it is constructed to be electrically connected to described Zigbee radiofrequency signal transmitter, adjusts for the output signal to described Zigbee radiofrequency signal transmitter;
Antenna, it is constructed to be electrically connected to described sig-nal-conditioning unit, be used to receiving the output signal of described sig-nal-conditioning unit, sends subsequently the output signal of described sig-nal-conditioning unit.
2. sender unit according to claim 1, is characterized in that, also comprises:
Chromacoder, it is constructed to be connected between described Zigbee radiofrequency signal transmitter and described sig-nal-conditioning unit, for being converted to single-ended signal by the double-end signal of described Zigbee radiofrequency signal transmitter output or meeting the double-end signal of predetermined condition.
3. the double-end signal that the double-end signal that sender unit according to claim 2, described predetermined condition comprise described chromacoder output and described Zigbee radiofrequency signal transmitter are exported is predetermined ratio.
4. sender unit according to claim 2, described chromacoder is the balance-to-nonbalance converter of reversible.
5. sender unit according to claim 2, it is characterized in that, in described sig-nal-conditioning unit, be provided with Power Conditioning Unit, it is constructed to described chromacoder, be connected with described antenna electric respectively, for the output signal of described chromacoder is carried out to power adjustments, will export through the signal of power adjustments described antenna to subsequently.
6. sender unit according to claim 5, it is characterized in that, between described Power Conditioning Unit and described antenna, be provided with low-pass filter, it is constructed to transmit the signal of preset frequency, and with described Power Conditioning Unit, be connected with described antenna electric respectively, described low-pass filter is for carrying out low-pass filtering to the output signal of described Power Conditioning Unit, and export the signal after low-pass filtering to described antenna, so that described antenna can send the signal of described preset frequency.
7. sender unit according to claim 5, is characterized in that, described Power Conditioning Unit is power amplifier, with increase, exports the power of the signal of described antenna to.
8. the signal receiving device for radio communication, is characterized in that, comprising:
Antenna, for receiving the signal from sender unit;
Sig-nal-conditioning unit, it is constructed to be connected with described antenna electric, adjusts for the output signal to described antenna;
The Zigbee radio frequency signal receiver, it is constructed to be electrically connected to described sig-nal-conditioning unit, be used to receiving the output signal of described sig-nal-conditioning unit.
9. signal receiving device according to claim 8, is characterized in that, also comprises:
Chromacoder, it is constructed to be electrically connected between described Zigbee radio frequency signal receiver and described sig-nal-conditioning unit, is converted to for the single-ended or double-end signal by described sig-nal-conditioning unit output the double-end signal that meets predetermined condition.
10. signal receiving device according to claim 9, is characterized in that, described predetermined condition comprises that the double-end signal of described sig-nal-conditioning unit output and the double-end signal that described chromacoder is exported are predetermined ratio.
11. signal receiving device according to claim 9, is characterized in that, described chromacoder is the balance-to-nonbalance converter of reversible.
12. signal receiving device according to claim 9, it is characterized in that, in described sig-nal-conditioning unit, be provided with signal amplifying apparatus, it is constructed to described chromacoder, be connected with described antenna electric respectively, for the output signal of described antenna is amplified, export the signal after amplifying to described chromacoder subsequently.
13. signal receiving device according to claim 12, is characterized in that, described signal amplifying apparatus is low noise amplifier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013201588844U CN203313168U (en) | 2013-04-01 | 2013-04-01 | Signal sending device and signal receiving device used for wireless communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201588844U CN203313168U (en) | 2013-04-01 | 2013-04-01 | Signal sending device and signal receiving device used for wireless communication |
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| CN203313168U true CN203313168U (en) | 2013-11-27 |
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| CN2013201588844U Expired - Fee Related CN203313168U (en) | 2013-04-01 | 2013-04-01 | Signal sending device and signal receiving device used for wireless communication |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867316A (en) * | 2015-06-11 | 2015-08-26 | 青岛海信电器股份有限公司 | Infrared remote control method and device |
| CN111483538A (en) * | 2017-07-31 | 2020-08-04 | 株式会社岛野 | Bicycle electric component |
-
2013
- 2013-04-01 CN CN2013201588844U patent/CN203313168U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867316A (en) * | 2015-06-11 | 2015-08-26 | 青岛海信电器股份有限公司 | Infrared remote control method and device |
| CN111483538A (en) * | 2017-07-31 | 2020-08-04 | 株式会社岛野 | Bicycle electric component |
| US11052967B2 (en) | 2017-07-31 | 2021-07-06 | Shimano Inc. | Bicycle electric component |
| CN111483538B (en) * | 2017-07-31 | 2021-12-28 | 株式会社岛野 | Bicycle electric component |
| TWI776633B (en) * | 2017-07-31 | 2022-09-01 | 日商島野股份有限公司 | Bicycle electric component |
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Address after: Binjiang District West Street seven a gate village in Hangzhou City, Zhejiang province 310000 7-49 Building No. 1 room 1018 Patentee after: THE VANE TECHNOLOGY COMPANY LIMITED Address before: 5, building 1520, Yiu A Plaza, No. 314000 East Zhongshan Road, Jiaxing, Zhejiang Patentee before: THE VANE TECHNOLOGY COMPANY LIMITED |
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Granted publication date: 20131127 Termination date: 20190401 |
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| CF01 | Termination of patent right due to non-payment of annual fee |