CN203984403U - The reflector that ring oscillation is controlled - Google Patents
The reflector that ring oscillation is controlled Download PDFInfo
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- CN203984403U CN203984403U CN201420462096.9U CN201420462096U CN203984403U CN 203984403 U CN203984403 U CN 203984403U CN 201420462096 U CN201420462096 U CN 201420462096U CN 203984403 U CN203984403 U CN 203984403U
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Abstract
The reflector that ring oscillation is controlled, belongs to electronic technology field, by or door annular oscillation circuit, coding integrated circuit, radio circuit jointly form; After reflector switches on power, annular oscillation circuit starting oscillation, due to coding integrated circuit change code end connected in the output of annular oscillation circuit, therefore radiating circuit has become dicode transmitting by simple solid size transmitting, possessed conversion, there is the very high anti-ability of cracking, because rudimentary coding integrated circuit has cheap advantage, so its product has very strong competitiveness.
Description
Technical field
Belong to electronic technology field.
Background technology
How to allow ordinary people also use high-end electronic product, this is an important goal of development in science and technology.
Telecontrol engineering is far distance controlled technology conventional in electronic product, and high-end remote control product, has the problem that cost is too high, also therefore high-end remote control product can not be spread in general population always.
Telecontrol engineering, all can encode, and the reason of coding prevents that other people from cracking exactly, if it is too simple to encode, as whole yards of lines are all 1 or are all 0, be just easy to be cracked by people, if anti-theft product, those security personnel are just performed practically no function, thereby the level of confidentiality of coding is directly connected to the quality of product.With present market, if be thought of as lowly, be exactly the coding that is encoded to three kinds of states so, take 2262 as representative, this integrated circuit cost is low, making product has very large price advantage, but coding is simple, and level of confidentiality is not high enough, so can not use widely in high-end product, how to use the integrated circuit of encoding cheaply to produce the product of High Security Level degree, allow remote control product use more widely, this is a good problem to study.
Summary of the invention
The main purpose of this patent is to allow remote control product obtain popularizing widely utilization, and a kind of new measure proposing, this measure is to use the coding of tri-state cheaply integrated circuit to produce the product of High Security Level degree, reduce product cost, and with other higher level code integrated circuit combination after, level of confidentiality is higher, prevents cracking ability stronger.
The measure that this patent proposes is:
1, the reflector that ring oscillation is controlled consists of jointly annular oscillation circuit, coding integrated circuit, radio circuit.
Wherein: annular oscillation circuit is comprised of inverter, commissure electric capacity.
The input that connects second inverter after adjustable resistance of output termination of first inverter, the input of the output of second inverter and the 3rd inverter joins, after the input connection commissure electric capacity of second inverter, receive the input of first inverter, the output of the 3rd inverter becomes the output of annular oscillation circuit, is connected to the input of first inverter simultaneously.
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube.
The change code end of coding integrated circuit connects the output of annular oscillation circuit, the fixed code earth connection of coding integrated circuit.
Radio frequency electrical routing controling switch, indicating circuit, copper foil antenna, transmitting tube, frequency modulation inductance, tunable capacitor form.
One termination battery supply of control switch, the control switch other end becomes the power supply of the dicode radiating circuit of vibration control.
Indicating circuit is comprised of protective resistance and indicator light: a termination power of protective resistance, arrives ground after other end indicating lights connected in series.
Frequency modulation inductance one end in frequency-modulation element links together to connect with the power end of weaving into integrated circuit and after control switch, connects power supply, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage and collector electrode of transmitting tube, between the base stage of transmitting tube and emitter, connect a resistance, the emitter of transmitting tube has also connected the other end of modulated resistance, one end of another termination tunable capacitor of copper antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, tunable capacitor parallel connection a shunt capacitance, the copper foil antenna other end has also connect an electric capacity to the emitter of transmitting tube.
2, the fixed code line of starting to exchange fire of coding integrated circuit.
3, two or three code bit earth connections of coding integrated circuit fixed code, all the other lines of starting to exchange fire.
This measure is further explained as follows:
When transmitting switches on power,, after control switch closure, annular oscillation circuit starts rapidly, because the change code of coding integrated circuit has terminated in the output of annular oscillation circuit, therefore, can send the code of conversion.
1, the principle of its vibration is: if in accompanying drawing 2 in power on circuitry in a flash, the input of first inverter (301 in Fig. 2) is high-order, because of commissure electric capacity (305 in Fig. 2) can not transition in transition reason, the input that will a high position be delivered to rapidly second inverter (303 in Fig. 2), thereby make the output of second inverter (303 in Fig. 2) for high, the output of the 3rd inverter (304 in Fig. 2) is low, thereby the input of first inverter (301 in Fig. 2) continues as low and keeps a period of time, within this time, the output of the 3rd inverter (304 in Fig. 2) is by commissure electric capacity (305 in Fig. 2) the output charging to first inverter (301 in Fig. 2) through adjustable resistance (302 in Fig. 2) again, (because this inverter output is low level), after commissure capacitor charging, electric capacity becomes off-position, second inverter input becomes low level from a high position, at this moment the state between each inverter takes a turn for the worse, state is now that second inverter output is for high-order, the 3rd inverter output is low level, first inverter output is high-order, also because of commissure electric capacity can not transition principle, this state will keep a period of time, the physical process of this period is that the output of first inverter can carry out reciprocal charging to commissure electric capacity by mistake adjustable resistance, form the later half cycle of vibration.So principle is carried out the cycle for the second time, and the later cycle.
In foregoing circuit, for the starting of oscillation that makes to vibrate easy, make vibrational stabilization reliable, designer has done following adjustment and has changed, the one, by the commissure capacitor design in circuit, be electrodeless, the electric leakage composition that has reduced electric capacity, has improved Q value, and the 2nd, the time constant of vibration has been increased to adjustable composition and be beneficial to adjust.Test shows that this circuit and whole circuit work good, have very strong can implementation type.
2, in measure 1, annular oscillation circuit has formed such annexation with coding integrated circuit, the coded portion of coding integrated circuit has been divided into two parts, a part is the fixed code having connected in advance, this fixed code can ground connection, also can connect power supply, flexible and changeable, another part is the variation code being connected with annular oscillation circuit.When manual operation is launched, annular oscillation circuit vibration, the change code end of coding integrated circuit has just become 0 and 1 two states, and the integrated circuit of at this moment encoding just can only a kind of solid size transmitting become two kinds of outputs of dicode from former.By the excitation to modulating tube, reached the object of dicode modulate emission.
3, because the frequency agile of annular oscillation circuit is adjustable, completely can the such ideal situation of furnishing when producing, at operation push-button in the needed time, (as 0.5 second), has completed the necessary condition of twice variation code.Because only need not two with a coding integrated circuit, coding integrated circuit chip select end ground connection, circuit is reliable.
4, except annular oscillation circuit and fgs encoder peripheral element and element, formed radio frequency and produced and launch necessary part, transmitting tube wherein and modulating tube are shared, simple and convenient.
5, at annular oscillation circuit, be welded with luminous indication, its object one is whether not only to find out the situation of circuit in opening, and the more important thing is that this measure is the special transmitting that adopts dicode, thereby when work shape, the indicator light being connected with annular oscillation circuit, in flashing state, can find out that whether its operating conditions is correct fully aware ofly.
6,, in radio frequency, this patent one is to adopt induction-regulated circuit, reduces volume, the 2nd, and the generation of radio frequency adopts a pipe with modulation simultaneously, has increased like this reliability of circuit.Because triode belongs to consumable accessory, above 2 points, have reduced whole space face simultaneously and have occupied situation.
7, in radio frequency, this patent adopts induction-regulated circuit, and its benefit is that induction regulation coil is little, and than fixedly crystal oscillator volume is little, its antenna adopts copper platinum in printed panel to apply into certain switch, and whole volume is little, can be contained in less launch-box.
Enforcement is rear or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, promoted the character of coding integrated circuit, what send is no longer the solid size being easily cracked, but has had conversion, has the very high anti-ability of cracking, because rudimentary coding integrated circuit has cheap advantage, so its product has very strong competitiveness.
If 2 with the coordinating of rolling code circuit, it decodes difficulty is superpower, because rolling code is the coding of a class character, and in this measure, dicode transmitting is the coding of a class character, two kinds of coded combinations of different nature, crack difficulty than a kind of coding of character larger.
3, reliably, its reason is while launching the change code of dicode generation to the transmitting of the dicode of this measure, can be disorderly, only can repeat, and two kinds of change yard states are obvious, offer a clear explanation, and the receiving unit designing with inventor extremely mates.
4, circuit is reliable, and the one, circuit is simplified, and the 2nd, easy failed part triode only has one, and the 3rd, after induction regulation coil envelope is filled with, inductance value is difficult for changing.Four, be that antenna is applied into by printed panel, do not produce variation in shape, do not affect radio frequency, adopted the elite of universal design.
5, the vibration being formed by ring oscillator, good stability, load capacity is strong, thereby has strengthened the reliable ability of product.
6, produce easily, the one, equipment that need not be valuable and instrument, the 2nd, technology is simple, the 3rd, circuit simplify and element requirement used low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of this measure.
Wherein: 1, annular oscillation circuit; 2, the output of the annular oscillation circuit change code end of integrated circuit of encoding; 3, coding integrated circuit; 4, the fixed code of coding integrated circuit; 5, weave into integrated circuit signal output; 6, modulated resistance; 7, radio circuit.
Fig. 2 is annular oscillation circuit figure.
In figure: 2, the output of the annular oscillation circuit change code end of integrated circuit of encoding; 301, first inverter; 302, adjustable resistance; 303, second inverter; 304, the 3rd inverter; 305, commissure electric capacity.
Fig. 3 is radio circuit figure.
In figure: 3, weave into integrated circuit; 5, weave into integrated circuit signal output; 6, modulated resistance; 30, weave into integrated circuit earth terminal; 31, weave into ic power end; 32, transmitting tube; 33, transmitting tube base resistance; 34, circuit controling switch; 35, frequency modulation inductance; 36, copper foil antenna; 37, the electric capacity that the copper foil antenna other end and transmitting tube emitter connect; 38, the shunt capacitance in parallel with tunable capacitor; 39, tunable capacitor.
concrete embodiment
Fig. 1,2,3 represents concrete a kind of mode of implementing.
1, select element: the integrated circuit of wherein encoding selects 2262, and transmitting tube is selected high-frequency tube, also can select 8050 triodes.
2, welding: radio circuit welds as shown in Figure 3, and annular oscillation circuit welds as shown in Figure 2.
3, modulation: adjust oscillating unit relevant parameters:
Adjust duration of oscillation: with oscillographic red pen, be connected on the output of oscillating circuit, black meter pen ground connection, observes vibration situation, makes it frequency and meets the requirements.If frequency is undesirable, adjusts commissure capacitance size, or adjust inverter output connected resistance; If frequency is too fast, two values is increased, otherwise reduce its value.
Adjust radio frequency and modulation operating state:
If make receiver with oscilloscope, be not directly connected with reflector, at this moment, when pressing reflector, oscilloscope can respond, and represents that radio frequency is working properly with modulation.Otherwise should adjust the sense value of induction regulation coil, or the resistance value of coding ic output, until sensitivity meets the requirements.
With common solid size receiver, make receiver, now receiving unit can not be received signal.If with the specific dicode signal receiver of inventor's design, dicode receiver can be received signal.
Claims (3)
1. the reflector that ring oscillation is controlled, consists of jointly annular oscillation circuit, coding integrated circuit, radio circuit;
Wherein: annular oscillation circuit is comprised of inverter, commissure electric capacity;
The input that connects second inverter after adjustable resistance of output termination of first inverter, the input of the output of second inverter and the 3rd inverter joins, after the input connection commissure electric capacity of second inverter, receive the input of first inverter, the output of the 3rd inverter becomes the output of annular oscillation circuit, is connected to the input of first inverter simultaneously;
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube;
The change code end of coding integrated circuit connects the output of annular oscillation circuit, the fixed code earth connection of coding integrated circuit;
Radio frequency electrical routing controling switch, indicating circuit, copper foil antenna, transmitting tube, frequency modulation inductance, tunable capacitor form;
One termination battery supply of control switch, the control switch other end becomes the power supply of the dicode radiating circuit of vibration control;
Indicating circuit is comprised of protective resistance and indicator light: a termination power of protective resistance, arrives ground after other end indicating lights connected in series;
Frequency modulation inductance one end in frequency-modulation element links together to connect with the power end of weaving into integrated circuit and after control switch, connects power supply, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage and collector electrode of transmitting tube, between the base stage of transmitting tube and emitter, connect a resistance, the emitter of transmitting tube has also connected the other end of modulated resistance, one end of another termination tunable capacitor of copper antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, tunable capacitor parallel connection a shunt capacitance, the copper foil antenna other end has also connect an electric capacity to the emitter of transmitting tube.
2. the reflector that ring oscillation according to claim 1 is controlled, is characterized in that: the fixed code of the coding integrated circuit line of starting to exchange fire.
3. the reflector that ring oscillation according to claim 1 is controlled, is characterized in that: two or three code bit earth connections of coding integrated circuit fixed code, all the other lines of starting to exchange fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462096.9U CN203984403U (en) | 2014-08-16 | 2014-08-16 | The reflector that ring oscillation is controlled |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420462096.9U CN203984403U (en) | 2014-08-16 | 2014-08-16 | The reflector that ring oscillation is controlled |
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| CN203984403U true CN203984403U (en) | 2014-12-03 |
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| CN201420462096.9U Expired - Fee Related CN203984403U (en) | 2014-08-16 | 2014-08-16 | The reflector that ring oscillation is controlled |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549014A (en) * | 2018-03-02 | 2018-09-18 | 广东电网有限责任公司佛山供电局 | A kind of DC electrical switching safety detection device |
-
2014
- 2014-08-16 CN CN201420462096.9U patent/CN203984403U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108549014A (en) * | 2018-03-02 | 2018-09-18 | 广东电网有限责任公司佛山供电局 | A kind of DC electrical switching safety detection device |
| CN108549014B (en) * | 2018-03-02 | 2024-04-12 | 广东电网有限责任公司佛山供电局 | Safety detection device for direct-current electrical switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20160816 |