CN207124621U - A kind of doorbell antenna - Google Patents
A kind of doorbell antenna Download PDFInfo
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- CN207124621U CN207124621U CN201720548763.9U CN201720548763U CN207124621U CN 207124621 U CN207124621 U CN 207124621U CN 201720548763 U CN201720548763 U CN 201720548763U CN 207124621 U CN207124621 U CN 207124621U
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- module
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- doorbell
- decoder
- superhet
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Abstract
This patent is related to a kind of doorbell antenna, including transmitter and receiver, the transmitter includes TV signal module, encoder and transmitter module, receiver includes reception antenna, frequency divider, television signal receiver module and doorbell signal receiving module, and doorbell signal receiving module includes amplifier tube, superhet decoder module, control module, decoder and audio-frequency module；The TV signal module and encoder are electrically connected transmitter module；The reception antenna electrically connects frequency divider, and frequency divider is electrically connected television signal receiver module and amplifier tube；Electrically connect between amplifier tube and superhet decoder module, and electrically connected respectively with control module, control module is also electrically connected decoder and audio-frequency module；Control module is used to control superhet decoder module interval dormancy.This patent reduces power consumption, improves cruising time by allowing superhet decoder module to make superhet decoder module interval dormancy in the case where not influenceing to realize reception signal function.
Description
Technical field
This patent is related to wireless communication field, and in particular to a kind of doorbell antenna.
Background technology
Existing household radio doorbell, is generally made up of transmitter and receiver two parts.Whether had according to receiver
Learn the function of pattern, wireless doorbell is generally divided into fixed code wireless doorbell and learning code wireless doorbell.Fixed code is wireless door
Bell transmitter one-to-one can only match with receiver, and learning code wireless doorbell can realize one-to-many pairing.Existing study
Code wireless doorbell must retain a study button on the receiver, the receiver that pressed switch to open in the study of triggering receiver
After practising function, then trigger transmitter and could complete the pairing of transmitter and receiver.After in user, oneself installs doorbell, if it is desired to
Change or increase transmitter, there will be inconvenience.And reception chip, audio chip and audio in existing receiver
Amplifier also consumes electric energy in the standby state, just needs to change if be powered wireless doorbell using battery, within one week
Battery, the problem of waste of energy be present.In addition, also need to set special oscillation resistance is corresponding to launch in existing wireless doorbell
The frequency of signal, to receive the transmission signal of transmitter, and the error of oscillation resistance is larger in practical operation, design difficulty
It is high, it is also possible to pay extra component cost.Furthermore when wireless doorbell battery electric quantity deficiency is stopped, due to normal
The antitheft door seen is thicker, and soundproof effect is good, may can't hear the cry or tap-tap of outside guest within doors, causes to delay with coming
The meet of visitor, causes necessarily to lose.
Utility model content
The defects of in order to solve in the prior art, this patent provide a kind of doorbell antenna, can be by intermittently receiving transmitting
Signal reduces stand-by power consumption, good reliability.
For above-mentioned technical problem, this patent is so solved：A kind of doorbell antenna, including transmitter and reception
Device, the transmitter include TV signal module, encoder and transmitter module, and receiver includes reception antenna, frequency divider, electricity
Depending on signal receiving module and doorbell signal receiving module, doorbell signal receiving module include amplifier tube, superhet decoder module,
Control module, decoder and audio-frequency module；
The TV signal module and encoder are electrically connected transmitter module；
The reception antenna electrically connects frequency divider, and frequency divider is electrically connected television signal receiver module and amplifier tube；Put
Electrically connect between big pipe and superhet decoder module, and electrically connected respectively with control module, control module is also electrically connected solution
Code device and audio-frequency module；
Control module also electrically connects the Enable Pin of superhet decoder module.
Compared to prior art, the difference of this patent is, because superhet decoder module needs to connect incessantly
The collection of letters number, but also the signal received is handled, so superhet decoder module is most important electricity in receiver
Source consumable part, the control module in this patent also electrically connect the Enable Pin of superhet decoder module, namely control module can be to
Enable Pin output pulse signal, superhet decoder module is allowed to make superhet solution in the case where not influenceing to realize reception signal function
Code module interval dormancy, and then the power consumption of receiver is reduced, improve the cruising time of receiver.
Further, the superhet decoder module includes signal reception pin ANT, signal output pin DO and piece choosing
Pin CE, signal receive pin ANT and electrically connected with amplifier tube, and signal output pin DO and chip select pin CE are electrically connected control
Module, control module are used to cause superhet decoder module interval dormancy to chip select pin CE input pulses signal.
The control module by chip select pin CE input pulses signal come superhet decoder module interval dormancy.
Further, the dutycycle of the pulse signal is 1/3 to 1/9.
The dutycycle is too high so that the superhet decoder module working time is long, it is impossible to receiver effect is effectively reduced,
Cruising time is reduced, the dutycycle is too low also make it that the superhet decoder module working time is too short, may influence to letter
Number reception, therefore, it is necessary to which dutycycle is set within certain limit, reduce the power consumption of receiver, while do not influence
Consumer's Experience, the effect of energy-conservation is reached.
Further, high level time is 100 to 300ms in the pulse signal, low level time be 500 to
1500ms。
The signal frequency of transmitting or the reception of general antenna is 315MHZ or 433MHz etc., and its order of magnitude is generally MHz, because
This, 100 to 300ms time enough superhet decoder modules receive the signal from antenna, while the setting of dormancy time
Can not be too short, energy-saving effect is influenceed, but can not be oversize so that superhet decoder module is difficult to receive the letter from antenna
Number, the interval time that general user operates transmitter is almost 1s, and 500 to 1500ms dormancy time being capable of maximum probability guarantee
For user with after transmitter transmitting two to signal three times, superhet decoder module can receive the signal from antenna, reduce work(
Also Consumer's Experience can be ensured while consumption to a certain extent.
Further, the audio-frequency module includes audio chip, amplifier and the loudspeaker being sequentially connected electrically in order, control
Molding block electrically connects with audio chip.
Further, audio chip also electrically connects with the enabled pin of amplifier.
When audio chip works, its to while amplifier exports audio signal also to enabled pin export high level,
Amplifier is set to be maintained at working condition；When audio chip is standby, audio chip exports low level to enabled pin, makes amplifier
It is stopped, reduces power consumption.
Further, the transmitter module includes oscillator, power amplifier and the transmitting being sequentially connected electrically in order
Antenna, oscillator are electrically connected TV signal module and encoder.
Further, the transmitting antenna is printed antenna, and power amplifier is low-noise high-frequency amplifier.
The printed antenna has the characteristics of small volume, simple in construction, although the gain to transmission signal is smaller, this
Patent also amplifies transmission signal using low-noise high-frequency amplifier, compensate for the less deficiency of printed antenna gain, reduces into
This, certain emission effciency is also assures that while reducing transmitter volume.
Further, the television signal receiver module includes low noise antenna amplifier antennafire and LTE wave filters, and low noise antenna is put
Big device is electrically connected frequency divider, LTE wave filters.
The TV signal of frequency dividing out passes sequentially through low noise antenna amplifier antennafire and LTE wave filters are exported.
A kind of control method of the receiver of doorbell antenna, comprises the following steps：
S1：The reception antenna is blind to sweep reception transmission signal；
S2：The transmission signal is divided into high-frequency TV signal and high frequency doorbell signal after frequency dividing；
S3：High frequency doorbell signal after amplification is decoded as low frequency doorbell signal by interval；
S4：The baud rate and corresponding coded system of self-adapting detecting low frequency doorbell signal, and it is received；
S5：Knowledge code is first carried out to the low frequency doorbell signal received, further decoding goes out specifying information；
S6：If can not find the information preserved to be matched with the decoded specifying information in previous step, need to carry
Show user again to code；If being matched in the presence of the information preserved with the decoded specifying information in previous step, send
Voice message.
The receiver is received using auto-baud adjustment, without external oscillation resistance, it is not required that with transmitter
Match somebody with somebody, reduce reception threshold so that receiving sensitivity reaches more than -80dBm；Because receiver is in most cases to be standby
State, in order to most probably reduce energy consumption, the operation interval that should make to receive high frequency doorbell signal in step S4 and decode is carried out, and is subtracted
Few working time, reduce power consumption.
Further, the step S4 is specially：Low frequency doorbell signal includes baud rate position and the data of regular coding
Frame, receiver detect low frequency door by identifying the high level lasting time of the baud rate position of regular coding in low frequency doorbell signal
The baud rate of bell signal, while according to the baud rate of the baud rate score synchronous receiver, low frequency doorbell signal and receiver
After baud rate synchronous, receiver is read out to data frame.
Further, if receiver re-powers, need to re-start to code.
This patent, to code learning key, can prompt user to carry out to code, operation letter without special when electric on the receiver
It is single, reduce cost.
Further, if receiver re-powered in 1 minute, need not re-start to code.
Facilitate user need not be again to code after changing battery in time.
Further, when receiver not enough power supply, user is prompted to change battery.
Compared to prior art, this patent has the beneficial effect that：
1st, by making superhet decoder module interval dormancy, the power consumption of receiver is reduced, improves the cruising time of receiver；
2nd, by the baud rate of self-adapting detecting low frequency doorbell signal, and the signal is received with the baud rate, dropped
The low threshold of cost and reception signal, improve receiving sensitivity；
3rd, adopt and have access to electricity the mode to code again rather than realize that transmitter and receiver are matched somebody with somebody by learning button to code
It is right, it is easy to operate, it is simple in construction；
4th, complementation is formed between the printed antenna and low-noise high-frequency amplifier, reduces cost, while reducing volume
It also assures that certain emission effciency.
Brief description of the drawings
Fig. 1 is the structure chart of transmitter.
Fig. 2 is the structure chart of receiver.
Fig. 3 is the physical circuit figure of this patent superhet decoder module.
Fig. 4 is the physical circuit figure of this patent control module and audio-frequency module.
Fig. 5 is the physical circuit of this patent mixing TV signal module output signal and encoder output.
Embodiment
This patent is described in detail with reference to embodiment and accompanying drawing.
Embodiment：
A kind of doorbell antenna as illustrated in fig. 1 and 2, including transmitter and receiver, the transmitter include TV signal
Module, encoder and transmitter module, receiver include reception antenna, frequency divider, television signal receiver module and doorbell letter
Number receiving module, doorbell signal receiving module include amplifier tube, superhet decoder module, control module, decoder and audio
Module；
The TV signal module and encoder are electrically connected transmitter module；
The reception antenna electrically connects frequency divider, and frequency divider is electrically connected television signal receiver module and amplifier tube；Put
Electrically connect between big pipe and superhet decoder module, and electrically connected respectively with control module, control module is also electrically connected solution
Code device and audio-frequency module；
Control module is used to control superhet decoder module interval dormancy.
Because superhet decoder module needs reception signal incessantly, but also will be at the signal that receives
Reason, so superhet decoder module is most important electrical source consumption part in receiver, this patent is by allowing superhet to decode mould
Block makes superhet decoder module interval dormancy in the case where not influenceing to realize reception signal function, and then reduces the work(of receiver
Consumption, improve the cruising time of receiver.
The superhet decoder module includes signal and receives pin ANT, signal output pin DO and chip select pin CE, letter
Number receive pin ANT electrically connected with amplifier tube, signal output pin DO and chip select pin CE are electrically connected control module, control
Module by chip select pin CE input pulses signal come superhet decoder module interval dormancy.
More than million groups of coded address is correspondingly provided with the encoder and decoder, transmitter module is at random from encoder
A kind of middle coded address of selection carries out launching the repetitive rate that can be reduced in real use with other transmitters, improves anti-interference energy
Power.
The audio-frequency module includes the audio chip, amplifier and the loudspeaker that are sequentially connected electrically in order, control module with
Audio chip electrically connects.
Audio chip also electrically connects with the enabled pin of amplifier, and when audio chip works, it exports sound to amplifier
High level also is exported to enabled pin while frequency signal, amplifier is maintained at working condition；When audio chip is standby, sound
Frequency chip exports low level to enabled pin, amplifier is stopped, and reduces power consumption.
The audio-frequency module includes audio chip, amplifier and loudspeaker, when the Signal Matching that control module receives into
After work(, control module starts audio chip work, and audio chip restarts amplifier and audio signal is amplified, eventually through
Audio signal after amplification is converted to suggestion voice by loudspeaker；36 chord music IC specifically can be selected in the audio chip.
The transmitter module includes oscillator, power amplifier and the transmitting antenna being sequentially connected electrically in order, vibration
Device is electrically connected TV signal module and encoder.
The transmitting antenna is printed antenna, and power amplifier is low-noise high-frequency amplifier, and concrete model can be
2SC3356。
The printed antenna has the characteristics of small volume, simple in construction, although the gain to transmission signal is smaller, this
Patent also amplifies transmission signal using low-noise high-frequency amplifier, compensate for the less deficiency of printed antenna gain, reduces into
This, certain emission effciency is also assures that while reducing transmitter volume, and having for 80 meters of circumference can be covered under spacious environment
Imitate scope.
The television signal receiver module includes low noise antenna amplifier antennafire and LTE wave filters, low noise antenna amplifier antennafire difference
Electrically connect frequency divider, LTE wave filters.
As shown in Figures 3 and 4, the superhet decoder module is used using PT4303-S as chip, control module
NT200M as chip, audio chip SXD033B, amplifier LN4890MMX, wherein PT4303-S chip select pin CE and
Output pin DO is coupled with NT200M two different pins, and signal receives pin ANT and connects amplifier tube；Audio chip
SXD033B has two pins to be accordingly connected on two different pins of LN4890MMX, and one of them is control
LN4890MMX switch, another is that audio signal is output in LN4890MMX to be amplified.
The audio chip SXD033B is connected to volume selection key SWB2.
User is controlled by volume selection key to the broadcast sound volume of suggestion voice, and can be according to indoor movable
Scope, surrounding enviroment noise and everyone acceptable volume select the broadcast sound volume of most suitable suggestion voice, if
Indoor mobilizable scope is big, surrounding enviroment noise is noisy or it is indoor the elderly be present, then volume is tuned up should as far as possible, it is ensured that
Doorbell is audible in indoor people；If indoor mobilizable scope is small, surrounding enviroment noise is small or indoor peace and quiet, then should be volume
Turn down, improve life comfort level, practical degree is high, and flexibility is good.
The audio chip is connected to voice selecting button SWB3.
Same suggestion voice is listened long, and user can produce boredom unavoidably, to improve life comfort level, the voice
Selection key is available for people to change different suggestion voices, and flexibility is good.
The NT200M is connected to code study button SWB1.
As shown in figure 5, the TV signal of TV signal module output enters VHF IN, and the signal of encoder enters UHF
IN, exported after the circuit shown in Fig. 5 is mixed from OUT terminal.
The operation principle of the present embodiment is as follows：
Transmitter：
1st, after the encoder is mixed the TV signal that the coded address set and TV signal module export
Be sent on oscillator and be modulated, the signal after modulation be amplified by power amplifier 2SC3356 after from transmitting antenna
Launch.
Wherein coded address includes the frame head of 1 byte, the baud rate of 1 byte, the address of 1 byte, the data of 2 bytes, 1 word
The verification of section and the postamble of 1 byte, it is as shown in the table：
Receiver：
1st, the signal received is first passed through frequency divider and divided by the reception antenna, and frequency dividing is TV signal all the way,
Exported by low noise antenna amplifier antennafire and LTE wave filters, another way doorbell signal, which is transferred in amplifier tube, to be amplified, and is put
Signal after big, which enters in superhet decoder module, to be demodulated, then the signal after demodulation is sent in control module, if signal
The input requirements of superhet decoder module are not met, then the signal after amplifier tube by being directly sent in control module；
2nd, the high level lasting time of the baud rate position of regular coding comes in the control module identification low frequency doorbell signal
The baud rate of low frequency doorbell signal is detected, while according to the baud rate of the baud rate score synchronous receiver, low frequency doorbell signal
After the baud rate synchronous of control module, control module is read out to data frame, and data frame is solved using decoder
Code obtains corresponding operational order, if if decoded operational order matches with the operational order preserved in advance to code, controls
Audio chip SXD033B processed sends audio signal to amplifier LN4890MMX and is amplified, and the audio signal after amplification is being raised one's voice
The audible suggestion voice of people is converted in device.
Carry out matching code between transmitter and receiver：
1st, power module re-powers after power-off was more than 1 minute or user presses and learns button SWB1 to code, controls mould
Block makes superhet decoder module continuously work by drawing high the CE pin several seconds, demodulates and sends a signal in control module, weight
Multiple above-mentioned receiving step, control module are read out to data frame, and data frame is decoded to obtain accordingly using decoder
Operational order, and the operational order is preserved.
2nd, in receiver operation principle 2, if control module can not find in advance to code preserve information carry out matching and decoding after
Information, then can carry out above-mentioned steps 2 by setting indicator lamp and making its flicker to prompt user to operate transmitter transmission signal
In to code operate.
In the operation principle 1 of above-mentioned receiver, the NT200M chips of control module pass through in superhet decoder module
The pin CE of PT4303-S chips sends pulse signal, makes its interval dormancy, reduces stand-by power consumption, if control module
When NT200M chips receive signal from the DATA pins of PT4303-S chips, then high level is sent to pin CE, made super outer
Poor decoder module keeps working condition, recovers to send pulse signal to pin CE again after Signal Matching success, makes superhet solution
Code module interval dormancy.
The receiver is additionally provided with low pressure and checks circuit, for checking the electricity of power module, when not enough power supply, and control
Module controls audio chip SXD033B to send audio signal to amplifier LN4890MMX and is amplified, the audio signal after amplification
Be converted to the audible suggestion voice of people in loudspeaker, prompt user's not enough power supply, and user changed in 1 minute power supply without
Need to be convenient and practical again to code.
Claims (8)
1. a kind of doorbell antenna, including transmitter and receiver, the transmitter includes TV signal module, encoder and hair
Module is penetrated, receiver includes reception antenna, frequency divider, television signal receiver module and doorbell signal receiving module, doorbell letter
Number receiving module includes amplifier tube, superhet decoder module, control module, decoder and audio-frequency module；
The TV signal module and encoder are electrically connected transmitter module；
The reception antenna electrically connects frequency divider, and frequency divider is electrically connected television signal receiver module and amplifier tube；Amplifier tube
Electrically connect between superhet decoder module, and electrically connected respectively with control module, control module is also electrically connected decoder
And audio-frequency module；
Characterized in that, control module also electrically connects the Enable Pin of superhet decoder module.
2. a kind of doorbell antenna according to claim 1, it is characterised in that the superhet decoder module connects including signal
Spasm pin ANT, signal output pin DO and chip select pin CE, signal receive pin ANT and electrically connected with amplifier tube, signal output
Pin DO and chip select pin CE is electrically connected control module, and control module is used to make to chip select pin CE input pulses signal
Obtain superhet decoder module interval dormancy.
A kind of 3. doorbell antenna according to claim 2, it is characterised in that the dutycycle of the pulse signal be 1/3 to
1/9。
4. a kind of doorbell antenna according to claim 2, it is characterised in that high level time is in the pulse signal
100 to 300ms, low level time is 500 to 1500ms.
5. a kind of doorbell antenna according to claim 1, it is characterised in that the audio-frequency module includes electric successively in order
Audio chip, amplifier and the loudspeaker of connection, control module electrically connect with audio chip.
A kind of 6. doorbell antenna according to claim 3, it is characterised in that enabled pin of the audio chip also with amplifier
Electrical connection.
7. a kind of doorbell antenna according to claim 1, it is characterised in that the transmitter module includes electric successively in order
Oscillator, power amplifier and the transmitting antenna of connection, oscillator are electrically connected TV signal module and encoder.
A kind of 8. doorbell antenna according to any one of claim 1 to 7, it is characterised in that the radio TV signals receiving mould
Block includes low noise antenna amplifier antennafire and LTE wave filters, and low noise antenna amplifier antennafire is electrically connected frequency divider, LTE wave filters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548763.9U CN207124621U (en) | 2017-05-17 | 2017-05-17 | A kind of doorbell antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720548763.9U CN207124621U (en) | 2017-05-17 | 2017-05-17 | A kind of doorbell antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124621U true CN207124621U (en) | 2018-03-20 |
Family
ID=61613887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720548763.9U Active CN207124621U (en) | 2017-05-17 | 2017-05-17 | A kind of doorbell antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124621U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264649A (en) * | 2019-06-26 | 2019-09-20 | 佛山市顺德区海得曼电器有限公司 | The electricity saving method of wireless doorbell |
| CN110853263A (en) * | 2019-11-15 | 2020-02-28 | 宁波兴为汽车电子有限公司 | Vehicle-mounted wireless doorbell pairing method |
-
2017
- 2017-05-17 CN CN201720548763.9U patent/CN207124621U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110264649A (en) * | 2019-06-26 | 2019-09-20 | 佛山市顺德区海得曼电器有限公司 | The electricity saving method of wireless doorbell |
| CN110264649B (en) * | 2019-06-26 | 2022-10-14 | 佛山市顺德区海得曼电器有限公司 | Power saving method of wireless doorbell |
| CN110853263A (en) * | 2019-11-15 | 2020-02-28 | 宁波兴为汽车电子有限公司 | Vehicle-mounted wireless doorbell pairing method |
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