CN203984409U - Adapt to strong change code reflector - Google Patents
Adapt to strong change code reflector Download PDFInfo
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- CN203984409U CN203984409U CN201420480615.4U CN201420480615U CN203984409U CN 203984409 U CN203984409 U CN 203984409U CN 201420480615 U CN201420480615 U CN 201420480615U CN 203984409 U CN203984409 U CN 203984409U
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Abstract
Adapt to strong change code reflector, belong to communication technique field, it is a kind of new measure proposing, by commissure condenser type complementary type oscillating circuit, coding integrated circuit, radiating circuit, control switch, indicating circuit forms jointly, form and adapt to strong change code transmitting, control switch connects battery supply, control switch is connected, for each several part power supply, indicating circuit is the circuit whether reflection control switch connects energy, two outputs of commissure condenser type complementary type oscillating circuit, a change code end that connects coding integrated circuit, one of them bit line that connects coding integrated circuit, the output of coding integrated circuit connects modulated resistance in radiating circuit, therefore, when control switch is connected, commissure condenser type complementary type vibration vibration immediately, make to encode integrated circuit one of them bit line with become the also vibration accordingly of code end, allow the common coding integrated circuit be no longer single code bit, and possessed conversion, improved coding level of confidentiality degree, remote control product can be used widely.
Description
Technical field
Belong to communication technique field.
Background technology
The quality of remote control product quality, to be determined by the level of confidentiality degree of encoding, coding level of confidentiality degree is high, crack difficulty, remote control product quality is all right, otherwise remote control poor product quality, and its level of confidentiality degree of not only encoding of good remote control product is high, and signal transmission is accurate, but cost is also high simultaneously, only pipe so, good remote control product but still cannot apply in the important security personnel's equipment in family, as anti-theft safety door, this is because remote control also fails to reach higher aspect level of confidentiality, at least fail higher than mechanical key, thereby just caused remote control product not use widely, how to improve remote control level of confidentiality degree, this is problem the most in the urgent need to address, from present technical merit, present coding integrated circuit, a kind of is the kind that rolling code is representative of take of higher gears, the advantage of this adhesive integrated circuit is that coding is complicated, crack difficulty, but price, technical difficulty is large simultaneously.Another kind of is the coding that is encoded to three kinds of states, as the 2262 coding integrated circuit kinds with representative, the integrated advantage of this class is that price is low, so the product of making has very large price competitiveness, market prospects are wide, but shortcoming due to coding the simple close utmost point not high, so can not be widely used in the product of having relatively high expectations.
If imagination can be produced with cheap coding integrated circuit the coding circuit of the highly dense utmost point, obviously to improving the competitiveness of product, have a very big significance.
Summary of the invention
Main purpose of the present utility model is to propose a kind of new measure, form and adapt to strong change code transmitting, it will promote the level of confidentiality degree of the integrated circuit of tri-state coding class energetically, reduce product cost, after other senior class coding integrated circuit combination, can realize superpower disintegration effect, remote control product can be used widely.
The measure that this patent proposes is:
1, adapting to strong change code reflector consists of jointly commissure condenser type complementary type oscillating circuit, coding integrated circuit, radiating circuit, control switch, indicating circuit.
Wherein: one end of control switch connects anode, and the other end is power line, the power end that connects commissure condenser type complementary type oscillating circuit, coding integrated circuit, radiating circuit, indicating circuit.
Commissure condenser type complementary type oscillating circuit is comprised of the prime triode that vibrates, vibration rear class triode, commissure electric capacity, adjustment element, inverter.
Adjusting element is adjustable resistance and fixed resistance.
One end of adjustable resistance connects power supply, the base stage that connects vibration prime triode after a fixed resistance of other end series connection, the grounded emitter of vibration prime triode, the collector electrode of vibration prime triode is connected together with the base stage of vibration rear class triode, the emitter of vibration rear class triode connects power supply, the collector electrode of vibration rear class triode connects a resistance to ground, commissure electric capacity is connected between the base stage of vibration prime triode and the collector electrode of vibration rear class triode, the collector electrode of vibration rear class triode becomes the first output of commissure electric capacity complementary type oscillating circuit, inverter input connects the first output of commissure electric capacity complementary type oscillating circuit, the output of inverter becomes the second output of commissure electric capacity complementary type oscillating circuit.
The change code end of coding integrated circuit connects the first output of commissure electric capacity complementary type oscillating circuit, and one of them bit line of coding integrated circuit connects the second output of commissure electric capacity complementary type oscillating circuit.
Radiating circuit is comprised of radio circuit and copper foil antenna.
The positive pole of battery supply becomes power line after connecting control switch, and protective resistance is connected between power line and indicator light, the other end ground connection of indicator light.
Copper foil antenna is specific english lowercase English alphabet n shape, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, and the spacing of two vertical Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm.
Radio circuit: one end of copper foil antenna is input, i.e. power line, the live wire of coding integrated circuit is connected on power line.
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulating tube of modulated resistance, the grounded emitter of modulation triode, modulation transistor collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input of another termination copper foil antenna of this electric capacity.
Another two terminations of crystal oscillator, the termination line input of starting to exchange fire, another termination connects the base stage of vapotron.
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input.
The input of copper foil antenna has also connect a tunable capacitor, the output of the other end connection copper foil antenna of tunable capacitor, the i.e. collector electrode of vapotron.
Tunable capacitor is an also in parallel electric capacity.
2, vapotron and modulating tube can be used the triode of same type.
3, inverter is a NPN triode, base stage becomes input after connecing a resistance, connect the first output of commissure electric capacity complementary type oscillating circuit, the grounded emitter of NPN triode, collector electrode connects another resistance to power line, and the current collection of NPN triode is the second output of commissure electric capacity complementary type oscillating circuit very.
4, vibration rear class triode is PNP triode.
This measure is further explained as follows:
1, in this measure, the oscillating unit of realizing change code is a very important part, designer has designed interlock circuit and has coordinated with it, the feature of this circuit is in complementary type triode, front is NPN triode, be PNP triode afterwards, the principle that forms vibration is: after opening power supply, vibration prime triode (104 in Fig. 1) has minute quantity electric current, the gesture that formation is opened, at this moment larger collector electrode becomes the base current of vibration rear class triode (103 in Fig. 1), cause the open-minded of vibration rear class triode, the lifting of its collector voltage, its commissure electric capacity (105 in Fig. 1) shape is given vibration prime triode by strong positive feedback, its result causes vibration prime triode and the open-minded rapidly of rear class triode two pipes of vibrating, present saturated trend, when commissure electric capacity electricity is full of, feedback finishes, commissure electric capacity becomes off state, the prime of vibrating triode starts to change to cut-off direction, commissure electric capacity starts electric discharge in the other direction, the prime triode bias current that makes to vibrate of its result more reduces, and then the rear class triode bias current that causes vibrating reduces, owing to producing the reason of strong feedback, the cut-off simultaneously of two pipes, form first cycle of vibration, when the reciprocal current discharge of commissure electric capacity discharges, at this moment the gesture that becomes to open again because of front NPN pipe, in like manner produce second period, the 3rd cycle etc., thereby alternately changing of output generation 1 and 0.
Commissure condenser type complementary type oscillating circuit simple in circuits, less demanding to triode, because inclined to one side resistance on vibration prime triode has adopted the connect form of fixed resistance (102 in Fig. 1) with adjustable resistance (101 in Fig. 1), so be very easily adjusted into the desired frequency of the person of establishing, and mate with whole circuit.Another feature of this circuit is that withstand voltage can being used in of triode requires high circuit, and (while producing very strong transmitting power, voltage can be improved) thereby adaptive surface are very wide, have expanded transmitting field.
2, in measure 1, commissure condenser type complementary type oscillating circuit has formed two kinds of relations with coding integrated circuit, a kind of relation is coding integrated circuit to be become to the conversion of code end, the coded portion of coding integrated circuit has been divided into two parts, a part is the fixed code having connected in advance, and another part is the change code being connected with the first output of commissure condenser type complementary type oscillating circuit.When manual operation is launched, oscillating unit vibration, the change code 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.
Another kind of relation is the conversion to one of them bit line of coding integrated circuit, the effect of inverter in Fig. 1, it is anti-phase all the time, if be input as height, output is just low, if be input as low, output is just high, therefore, when first of integration type complementary type oscillating circuit is output as a high position, the second output of integration type complementary type oscillating circuit is just low level, one of them bit line of integrated circuit of encoding is so just low level, 0, if first of integration type complementary type oscillating circuit is output as low level, the second output of integration type complementary type oscillating circuit is just high-order, encode one of them bit line of integrated circuit so just for high-order, 1, therefore formed the conversion of one of them bit line of coding integrated circuit.
3, in measure 1, its feature one is, adjustable at the frequency agile due to oscillating unit, completely can the such ideal situation of furnishing when producing, and at operation push-button in the needed time, (as 0.5 second), has completed the necessary condition of twice variation code.Its feature two is, because only need not two with a coding integrated circuit, and this integrated circuit chip select end ground connection, circuit is reliable.
4, the distance of transmitting is that sensitivity and weather have a significant impact, and high-end remote control product is very high to the requirement of sensitivity, if by traditional method for designing, be difficult to guarantee to meet the requirement of adjusting the distance, its reason is, general transmitting can Iterim Change position and the distance of transmitting, as long as can meet at that time reception, can receive that signal just could.If special product, the requirement of adjusting the distance is strict, once at bad weather, is just difficult to guarantee the performance of product, increases necessary measure so essential.And this transmitting can largely improve sensitivity, this is because specific a kind of copper foil antenna is specific english lowercase English alphabet n shape, article two, vertical Copper Foil top connects with arc Copper Foil kissing, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, article two, the spacing of vertical Copper Foil is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm.Strict formulation, allows transmitting have better coupling with reception, experiment showed, that such being transmitted in reduced weather and surrounding environment to a great extent on the impact transmitting.
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 level of confidentiality degree of coding integrated circuit, by solid size transmitting, become dicode transmitting, not only make a yard line have conversion, and make bit line also have conversion, after coordinating by the reception with supporting, strengthened and prevented cracking ability, because the integrated circuit cost of common coding is low, thereby make after product, there is 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, commissure condenser type complementary type oscillating circuit simple in circuits, withstand voltage can being used in of triode requires high circuit, and while producing very strong transmitting power, thereby adaptive surface is very wide, has expanded transmitting field.
5, 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.
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 commissure condenser type complementary type oscillating circuit figure.
In figure: 1-1, power line; 2, the encode change code end of integrated circuit of first of commissure condenser type complementary type oscillating circuit the output; 10, second of commissure condenser type complementary type oscillating circuit the output, one of them bit line of the integrated circuit of encoding; 101, adjustable resistance; 102, fixed resistance; 103, vibration rear class triode; 104, vibration prime triode; 105, commissure electric capacity; 106, the collector electrode resistance to earth of vibration rear class triode; 107, inverter.
Fig. 2 is radiating circuit figure.
In figure: 1-1, power line; 3, coding integrated circuit; 5, coding integrated circuit signal output; 6, modulated resistance; 7, modulation triode; 30, battery supply; 31, protective resistance; 32, indicator light; 34, control switch; 35, crystal oscillator; 36, the base resistance of vapotron; 37, shunt capacitance; 38, vapotron; 39, the electric capacity in parallel with tunable capacitor; 40, tunable capacitor; 41, copper foil antenna.
Fig. 3 is that each several part is related to schematic diagram.
In figure: 1-1, power line; 1, commissure condenser type complementary type oscillating circuit; 2, the encode change code end of integrated circuit of first of commissure condenser type complementary type oscillating circuit the output; 3, coding integrated circuit; 4, the fixed code of coding integrated circuit; 5, coding integrated circuit signal output; 6, modulated resistance; 7, modulation triode; 8, radiating circuit; 9, all the other bit lines of coding integrated circuit; 10, second of commissure condenser type complementary type oscillating circuit the output, one of them bit line of the integrated circuit of encoding.
Embodiment
Fig. 1 to Fig. 3 has described the concrete a kind of mode implemented of the present invention jointly.
1, select element: the integrated circuit of wherein encoding selects 2262, and triode is selected high-frequency tube, also can select 8050 triodes.
2, welding: radiating circuit welds as shown in Figure 2, and commissure condenser type complementary type oscillating circuit welds as shown in Figure 1.
3, modulation:
(1), adjust the vibration of commissure condenser type complementary type:
Adjust duration of oscillation: with oscillographic red pen, be connected on the output of oscillating circuit black meter pen ground connection.
Observe vibration situation, make it frequency and meet the requirements.If frequency is undesirable, adjust commissure capacitance size, if frequency is too fast, capacitance is increased, otherwise reduce its value.
(2) 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.
4, 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 (4)
1. adapt to strong change code reflector, it is characterized in that: by commissure condenser type complementary type oscillating circuit, coding integrated circuit, radiating circuit, control switch, indicating circuit, jointly formed:
Wherein: one end of control switch connects anode, and the other end is power line, the power end that connects commissure condenser type complementary type oscillating circuit, coding integrated circuit, radiating circuit, indicating circuit;
Commissure condenser type complementary type oscillating circuit is comprised of the prime triode that vibrates, vibration rear class triode, commissure electric capacity, adjustment element, inverter:
Adjusting element is adjustable resistance and fixed resistance;
One end of adjustable resistance connects power supply, the base stage that connects vibration prime triode after a fixed resistance of other end series connection, the grounded emitter of vibration prime triode, the collector electrode of vibration prime triode is connected together with the base stage of vibration rear class triode, the emitter of vibration rear class triode connects power supply, the collector electrode of vibration rear class triode connects a resistance to ground, commissure electric capacity is connected between the base stage of vibration prime triode and the collector electrode of vibration rear class triode, the collector electrode of vibration rear class triode becomes the first output of commissure electric capacity complementary type oscillating circuit, inverter input connects the first output of commissure electric capacity complementary type oscillating circuit, the output of inverter becomes the second output of commissure electric capacity complementary type oscillating circuit,
The change code end of coding integrated circuit connects the first output of commissure electric capacity complementary type oscillating circuit, and one of them bit line of coding integrated circuit connects the second output of commissure electric capacity complementary type oscillating circuit;
Radiating circuit is comprised of radio circuit and copper foil antenna:
The positive pole of battery supply becomes power line after connecting control switch, and protective resistance is connected between power line and indicator light, the other end ground connection of indicator light;
Copper foil antenna is specific english lowercase English alphabet n shape, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, and the spacing of two vertical Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm;
Radio circuit: one end of copper foil antenna is input, i.e. power line, the live wire of coding integrated circuit is connected on power line;
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulating tube of modulated resistance, the grounded emitter of modulation triode, modulation transistor collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input of another termination copper foil antenna of this electric capacity;
Another two terminations of crystal oscillator, the termination line input of starting to exchange fire, another termination connects the base stage of vapotron;
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input;
The input of copper foil antenna has also connect a tunable capacitor, the output of the other end connection copper foil antenna of tunable capacitor, the i.e. collector electrode of vapotron;
Tunable capacitor is an also in parallel electric capacity.
2. the strong change code reflector of adaptation according to claim 1, is characterized in that: vapotron and modulating tube can be used the triode of same type.
3. the strong change code reflector of adaptation according to claim 1, it is characterized in that: inverter is a NPN triode, base stage becomes input after connecing a resistance, connect the first output of commissure electric capacity complementary type oscillating circuit, the grounded emitter of NPN triode, collector electrode connects another resistance to power line, and the current collection of NPN triode is the second output of commissure electric capacity complementary type oscillating circuit very.
4. the strong change code reflector of adaptation according to claim 1, is characterized in that: vibration rear class triode is PNP triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480615.4U CN203984409U (en) | 2014-08-25 | 2014-08-25 | Adapt to strong change code reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420480615.4U CN203984409U (en) | 2014-08-25 | 2014-08-25 | Adapt to strong change code reflector |
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| Publication Number | Publication Date |
|---|---|
| CN203984409U true CN203984409U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420480615.4U Expired - Fee Related CN203984409U (en) | 2014-08-25 | 2014-08-25 | Adapt to strong change code reflector |
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| Country | Link |
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| CN (1) | CN203984409U (en) |
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2014
- 2014-08-25 CN CN201420480615.4U patent/CN203984409U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
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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 |
Granted publication date: 20141203 Termination date: 20160825 |
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| CF01 | Termination of patent right due to non-payment of annual fee |