CN204089795U - The learning-oriented superhet band decoding receiver of built-in aerial - Google Patents
The learning-oriented superhet band decoding receiver of built-in aerial Download PDFInfo
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- CN204089795U CN204089795U CN201420478396.6U CN201420478396U CN204089795U CN 204089795 U CN204089795 U CN 204089795U CN 201420478396 U CN201420478396 U CN 201420478396U CN 204089795 U CN204089795 U CN 204089795U
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Abstract
The utility model relates to a kind of learning-oriented superhet band decoding receiver of built-in aerial, and feature comprises built-in aerial, bandwidth-limited circuit, signal receiving circuit, decoding circuit and filter circuit; Described built-in aerial is printed on control circuit board; The input of described bandwidth-limited circuit is electrically connected with the output of built-in aerial; The input of described signal receiving circuit is electrically connected with the output of bandwidth-limited circuit; The input of described decoding circuit is electrically connected with the output of signal receiving circuit; The input of described filter circuit is electrically connected with the output of DC supply, and the output of filter circuit provides direct-current working volts for signal receiving circuit, and DC supply provides direct-current working volts for decoding circuit.Its advantage is: volume is little, and cost is low, and communication distance is far away, and matching is good, can mate multiple remote controller and easy to use.
Description
Technical field
The utility model relates to a kind of learning-oriented superhet band decoding receiver of built-in aerial, and it is widely used in the middle of wireless lighting control, wireless industrial control, toy controlled in wireless and Smart Home etc.
Background technology
The learning-oriented superhet band decoding receiver generally used in the market is the decoder module of wire jumper geocoding; Its shortcoming existed has: one is pairing trouble, need transmitting terminal ability the same as the geocoding of receiving terminal normally to work, and transmitting terminal and receiving terminal rate resistor must mate, otherwise also illegal normal decoder; Two is cannot mate multiple remote controller to control, and is inconvenient to use; Three is need external reception antenna, is inconvenient to install.
Summary of the invention
The purpose of this utility model overcomes the deficiencies in the prior art and provides a kind of volume little, and cost is low, and communication distance is far away, and matching is good, can mate the learning-oriented superhet band decoding receiver of multiple remote controller and built-in aerial easy to use.
In order to achieve the above object, the utility model is achieved in that it is a kind of learning-oriented superhet band decoding receiver of built-in aerial, it is characterized in that comprising:
Built-in aerial; Described built-in aerial is printed on control circuit board;
Bandwidth-limited circuit; The input of described bandwidth-limited circuit is electrically connected with the output of built-in aerial;
The input of signal receiving circuit described in signal receiving circuit is electrically connected with the output of bandwidth-limited circuit;
Decoding circuit; The input of described decoding circuit is electrically connected with the output of signal receiving circuit; And filter circuit; The input of described filter circuit is electrically connected with the output of DC supply, and the output of filter circuit provides direct-current working volts for signal receiving circuit, and DC supply provides direct-current working volts for decoding circuit.
Described bandwidth-limited circuit comprises the first inductance, the second inductance, the first electric capacity and the second electric capacity; Described first inductance and one end after the second Capacitance parallel connection are electrically connected with the output of built-in aerial and one end of the first electric capacity respectively, other end ground connection; The other end of the first electric capacity is the output of bandwidth-limited circuit, and this end is also electrically connected with one end of the second inductance, the other end ground connection of the second inductance.
Described signal receiving circuit comprises reception of wireless signals chip, crystal, the 3rd electric capacity and the 4th electric capacity; Described decoding circuit comprises decoding chip, the 6th electric capacity, resistance, light-emitting diode and key switch; The model of described reception of wireless signals chip is SYN480R, has eight pins; The model of described decoding chip is SK212, has 14 pins; The pin one ground connection of reception of wireless signals chip, its pin two is electrically connected with the output of bandwidth-limited circuit, its pin 3 is electrically connected with filter circuit output, its pin 4 is by the 4th capacity earth, its pin 5 is electrically connected with decoding chip pin 13, its pin 6 ground connection, its pin 7 is by the 3rd capacity earth, and its pin 8 is by crystal ground connection; The pin one ground connection of decoding chip, the two ends of the 6th electric capacity are electrically connected with the pin one of decoding chip and pin one 4 respectively, its pin one 4 also connects DC supply, the pin two of decoding chip is by key switch ground connection, the instruction of its pin 3 output signal, pin 4 to 7 exports control signal, and resistance is connected with light-emitting diode afterwards one end ground connection, and the other end is electrically connected with the pin one 0 of decoding chip.
The utility model advantage is compared with prior art: volume is little, and cost is low, and communication distance is far away, and matching is good, can mate multiple remote controller and easy to use.
accompanying drawing explanation
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model;
Fig. 3 is mode chart of the present utility model.
embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.It should be noted that at this, the explanation for these execution modes understands the utility model for helping, but does not form restriction of the present utility model.In addition, if below in described each execution mode of the utility model involved technical characteristic do not form conflict each other and just can be combined with each other.
In description of the present utility model, term " first " and " the 6th " only for describing object, and can not be interpreted as instruction or hint relative importance.
As shown in Figure 1, it is a kind of learning-oriented superhet band decoding receiver of built-in aerial, comprising:
Built-in aerial 1; Described built-in aerial 1 is printed on control circuit board;
Bandwidth-limited circuit 2; The input of described bandwidth-limited circuit 2 is electrically connected with the output of built-in aerial 1;
Signal receiving circuit 3; The input of described signal receiving circuit 3 is electrically connected with the output of bandwidth-limited circuit 2;
Decoding circuit 4; The input of described decoding circuit 4 is electrically connected with the output of signal receiving circuit 3; And filter circuit 5; The described input of filter circuit 5 is electrically connected with the output of DC supply, and the output of filter circuit 5 provides direct-current working volts for signal receiving circuit 3, and DC supply provides direct-current working volts for decoding circuit 4.
In the present embodiment, described bandwidth-limited circuit 2 comprises the first inductance L 1, second inductance L 2, first electric capacity C1 and the second electric capacity C2; Described first inductance L 1 is electrically connected with the output of built-in aerial 1 and one end of the first electric capacity C1 respectively with one end after the second electric capacity C2 parallel connection, other end ground connection; The other end of the first electric capacity C1 is the output of bandwidth-limited circuit 2, and this end is also electrically connected with one end of the second inductance L 2, the other end ground connection of the second inductance L 2.
Described signal receiving circuit 3 comprises reception of wireless signals chip U1, crystal Y1, the 3rd electric capacity C3 and the 4th electric capacity C4; The model of described reception of wireless signals chip U1 is SYN480R, has eight pins; The pin one ground connection of reception of wireless signals chip U1, its pin two is electrically connected with the output of bandwidth-limited circuit 2, its pin 3 is electrically connected with filter circuit 5 output, its pin 4 is by the 4th electric capacity C4 ground connection, its pin 5 is electrically connected with following decoding chip U2 pin 13, its pin 6 ground connection, its pin 7 is by the 3rd electric capacity C3 ground connection, and its pin 8 is by crystal Y1 ground connection.Described filter circuit 5 comprises the 3rd inductance L 3 and the 5th electric capacity C5, a termination DC supply of described 3rd inductance L 3, and the other end is electrically connected with one end of the 5th electric capacity C5 and the pin 3 of receiving chip U1 respectively, the other end ground connection of the 5th electric capacity C5.
Described decoding circuit 4 comprises decoding chip U2, the 6th electric capacity C5, resistance R1, LED 1 and key switch S1; The model of described decoding chip U2 is SK212, has 14 pins.The pin one ground connection of decoding chip U2, the two ends of the 6th electric capacity C5 are electrically connected with the pin one of decoding chip U2 and pin one 4 respectively, its pin one 4 also connects DC supply, the pin two of decoding chip U2 is by key switch S1 ground connection, the instruction of its pin 3 output signal, pin 4 to 7 exports control signal, and one end ground connection after resistance R1 connects with LED 1, the other end is electrically connected with the pin one 0 of decoding chip U2.
During work, DC supply provides the operating voltage of 3.5-5.5V, this operating voltage supplies reception of wireless signals chip U1 after the RC filtering that the 3rd inductance L 3 and the 5th electric capacity C5 form, and ensures that power quality is stablized noiseless, improves the sensitivity of reception of wireless signals chip U1; First inductance L 1, second inductance L 2, first electric capacity C1 and the second electric capacity C2 forms the band pass filter of wireless signal input, needs to adjust different parameters under different operating frequency; Wireless signal receives after amplification modulation through reception of wireless signals chip U1, export at the pin 5 of reception of wireless signals chip U1, supply decoding chip U2 decodes, decoding chip U2 is to signal decoding, if mate the coding learnt, then on pin 4 to the pin 7 of decoding chip U2, export control signal, the pin 3 of decoding chip U2 outputs signal instruction.
As shown in Figure 3, wireless signal transmitter transmits and comprises a synchronous code and 24 bit data codes, and can see from the graph that synchronous code high level is 4LCK, low level is 124LCK, namely represents high level and low level ratio is 1:31.High level and the low level ratio of data 1 are 3:1, and high level and the low level ratio of data 0 are 1:3.Judge the baud rate change of encoder thus, just affect high level and low level width, but do not affect high level and low level ratio.Wireless signal is after reception of wireless signals chip U1 modulates, above-mentioned waveform is exported at No. 5 pin of reception of wireless signals chip U1, send into No. 13 pin of decoding chip U2, decoding chip U2 measures the high level of wireless signal and low level pulse duration respectively, then the ratio value both calculating, when ratio value is about 31, confirm as synchronous code; When ratio data is about 3:1, confirm as data 1; When ratio data is about 1:3, confirm as data 0.For ensureing data reliability and accuracy smoothly, high level and low level ratio allow ± error of 20%.Only have and first acknowledge receipt of synchronous code, just allow to receive numeric data code, after receiving 24 bit data codes, namely complete the reception of whole data.After data receiver completes, the coding preserved with chip is compared, if comparison success, represents the coding carrying out learning, and will export corresponding control signal at output.
Below by reference to the accompanying drawings detailed description is made to execution mode of the present utility model, but the utility model is not limited to described execution mode.For the ordinary skill in the art, carry out multiple change, amendment, replacement and distortion when not departing from principle of the present utility model and aim to these execution modes still to fall within protection range of the present utility model.
Claims (2)
1. a learning-oriented superhet band decoding receiver for built-in aerial, is characterized in that comprising:
Built-in aerial (1); Described built-in aerial (1) is printed on control circuit board;
Bandwidth-limited circuit (2); The input of described bandwidth-limited circuit (2) is electrically connected with the output of built-in aerial (1);
Signal receiving circuit (3); The input of described signal receiving circuit (3) is electrically connected with the output of bandwidth-limited circuit (2);
Decoding circuit (4); The input of described decoding circuit (4) is electrically connected with the output of signal receiving circuit (3); And
Filter circuit (5); The input of described filter circuit (5) is electrically connected with the output of DC supply, the output of filter circuit (5) is that signal receiving circuit (3) provides direct-current working volts, and DC supply is that decoding circuit (4) provides direct-current working volts.
2. the learning-oriented superhet band decoding receiver of built-in aerial according to claim 1, is characterized in that described bandwidth-limited circuit (2) comprises the first inductance (L1), the second inductance (L2), the first electric capacity (C1) and the second electric capacity (C2); After described first inductance (L1) is in parallel with the second electric capacity (C2), one end is electrically connected with the output of built-in aerial (1) and one end of the first electric capacity (C1) respectively, other end ground connection; The other end of the first electric capacity (C1) is the output of bandwidth-limited circuit (2), and this end is also electrically connected with one end of the second inductance (L2), the other end ground connection of the second inductance (L2).
3, the learning-oriented superhet band decoding receiver of built-in aerial according to claim 1, is characterized in that described signal receiving circuit (3) comprises reception of wireless signals chip (U1), crystal (Y1), the 3rd electric capacity (C3) and the 4th electric capacity (C4); Described decoding circuit (4) comprises decoding chip (U2), the 6th electric capacity (C5), resistance (R1), light-emitting diode (LED1) and key switch (S1); The model of described reception of wireless signals chip (U1) is SYN480R, has eight pins; The model of described decoding chip (U2) is SK212, has 14 pins; The pin one ground connection of reception of wireless signals chip (U1), its pin two is electrically connected with the output of bandwidth-limited circuit (2), its pin 3 is electrically connected with filter circuit (5) output, its pin 4 is by the 4th electric capacity (C4) ground connection, its pin 5 is electrically connected with decoding chip (U2) pin 13, its pin 6 ground connection, its pin 7 is by the 3rd electric capacity (C3) ground connection, and its pin 8 is by crystal (Y1) ground connection; The pin one ground connection of decoding chip (U2), the two ends of the 6th electric capacity (C5) are electrically connected with the pin one of decoding chip (U2) and pin one 4 respectively, its pin one 4 also connects DC supply, the pin two of decoding chip (U2) is by key switch (S1) ground connection, the instruction of its pin 3 output signal, pin 4 to 7 exports control signal, and resistance (R1) is connected with light-emitting diode (LED1) afterwards one end ground connection, and the other end is electrically connected with the pin one 0 of decoding chip (U2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478396.6U CN204089795U (en) | 2014-08-25 | 2014-08-25 | The learning-oriented superhet band decoding receiver of built-in aerial |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420478396.6U CN204089795U (en) | 2014-08-25 | 2014-08-25 | The learning-oriented superhet band decoding receiver of built-in aerial |
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| CN204089795U true CN204089795U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420478396.6U Expired - Fee Related CN204089795U (en) | 2014-08-25 | 2014-08-25 | The learning-oriented superhet band decoding receiver of built-in aerial |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845245A (en) * | 2017-09-01 | 2018-03-27 | 江西盈克电子科技有限公司 | A kind of wireless control system of frequency converter |
| CN113706851A (en) * | 2021-08-13 | 2021-11-26 | 珠海格力智能装备有限公司 | Remote controller infrared signal decoding method and device and remote controller |
-
2014
- 2014-08-25 CN CN201420478396.6U patent/CN204089795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845245A (en) * | 2017-09-01 | 2018-03-27 | 江西盈克电子科技有限公司 | A kind of wireless control system of frequency converter |
| CN113706851A (en) * | 2021-08-13 | 2021-11-26 | 珠海格力智能装备有限公司 | Remote controller infrared signal decoding method and device and remote controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |