CN204652360U - Increase the frequency-selecting type vibration reflector of sensitivity - Google Patents
Increase the frequency-selecting type vibration reflector of sensitivity Download PDFInfo
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- CN204652360U CN204652360U CN201520341316.7U CN201520341316U CN204652360U CN 204652360 U CN204652360 U CN 204652360U CN 201520341316 U CN201520341316 U CN 201520341316U CN 204652360 U CN204652360 U CN 204652360U
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Abstract
Increase the frequency-selecting type vibration reflector of sensitivity, belong to telecontrol engineering field.Jointly be made up of frequency-selecting type oscillating circuit, not circuit, coding integrated package, radio circuit, indicating circuit.Frequency-selecting type oscillating circuit connects the first variation code of coding integrated package, the input of the first movable bit line NAND gate circuit, second variation code of coding integrated package is connected the output of not circuit with the second movable bit line, the output of coding integrated package connects radio circuit, and indicating circuit is connected between power supply and ground wire.When launching energising, frequency-selecting type oscillating circuit starts, first variation code and the first movable bit line are the output transforms along with frequency-selecting type oscillating circuit, obtain synchronous coded signal, and the second variation code and the second movable bit line are the output transforms along with not circuit, what obtain is change the code coded signal contrary with the first movable bit line with first.In radio frequency, formulate a kind of copper foil antenna and coordinated with it, launching and receiving has better been mated, improves the sensitivity of transmitting.
Description
Technical field
Belong to telecontrol engineering field.
Background technology
Radio coding technology is this business research key project, is also a kind of series of studies.Why become series of studies, reason one is, application is very wide, and it two is, from the angle of maintaining secrecy, existing coding techniques is a kind of research of direction, and this project is the research of other direction, thus can have better secret effect, it three is, the fixed code with three kinds of states is upgraded to a kind of highly dense encoding state, and because this coding has the change of a variety of form, and each version all has great importance.
The distance that radio can transmit in transmittance process, be an important indicator in radio transmission, the distance obviously can transmitted is far away, and its performance is also advanced, otherwise performance is lower.
Theory and description of test, the distance of transmitting and extraneous factor have very large relation, as the environment with surrounding, all have very large relation with weather.Particularly weather, under same extraneous circumstance, the launch and accept common when weather is good all often can reach tens meters, but when bad weather, its distance can be reduced to only several meters suddenly.How to promote the sensitivity of transmitting, make to be transmitted in the guarantee that can obtain performance in extraneous severe factor, key subjects of scientific research personnel's thinking that Here it is are also key subjects of this enterprise scientific research personnel.
Summary of the invention
The utility model proposes a kind of New Measure, wherein contain the frequency-selective network making frequency stabilization, the conversion realizing common tri-state coding is launched, in radio frequency, use a kind of novel copper foil antenna, realize the matched well of launching and receiving, reduce extraneous bad weather and surrounding environment to the impact of launching, the performance of transmitting can be guaranteed.
The measure that the utility model adopts is:
1, the frequency-selecting type vibration reflector increasing sensitivity is made up of jointly frequency-selecting type oscillating circuit, not circuit, coding integrated package, radio circuit, indicating circuit.
Wherein: frequency-selecting type oscillating circuit connects the first variation code of coding integrated package, the input of the first movable bit line NAND gate circuit, second variation code of coding integrated package is connected the output of not circuit with the second movable bit line, the output of coding integrated package connects radio circuit, and indicating circuit is connected between power supply and ground wire.
Coding integrated package has 8 bit address codes, 4 bit data codes, wherein 6 bit address codes connect as fixed code, in all the other two bit address codes, one to connect with the output of frequency-selecting type oscillating circuit and becomes the first variation code, and the output of another one NAND gate circuit connects becomes the second variation code; 4 bit data codes i.e. 4 bit lines, two earth connections wherein, and what connect with the output of frequency-selecting type oscillating circuit in another two is the first movable bit line, and what the output of NAND gate circuit connected is the second movable bit line.
The output of frequency-selecting type oscillating circuit connects the change code end of coding integrated package, and connect radio circuit after the output connection modulated resistance of coding integrated package, indicating circuit is connected between power supply and ground wire.
Frequency-selecting type oscillating circuit is made up of frequency-selective network, output triode, collector resistance.
Frequency-selective network is made up of the base resistance of the parallel circuits of coil and electric capacity, RC parallel circuits, frequency-selecting triode, frequency-selecting triode.
Coil is connected power supply with one end of the parallel circuits of electric capacity, the other end connects the collector electrode of frequency-selecting triode, the emitter of frequency-selecting triode connects one end of RC parallel circuits, the other end earth connection of RC parallel circuits, the base resistance of frequency-selecting triode is made up of two resistance, one termination power of a resistance, the base stage of other end selecting frequency triode, the base stage of one end selecting frequency triode of second resistor, the other end earth connection of second resistor, the output of the current collection of frequency-selecting triode very frequency-selective network, connect the base stage of output triode, the collector electrode of output triode connects a collector resistance to power supply, namely the emitter of output triode is the output of frequency-selecting type oscillating circuit.
Radio circuit is made up of modulation circuit, radiating circuit, copper foil antenna.
Modulation circuit is made up of modulated resistance and modulation triode, the output of coding integrated package connects one end of modulated resistance, the base stage of another termination modulation triode of modulated resistance, the grounded emitter line of modulation triode, the collector electrode of modulation triode connects the emitter of radiating circuit medium-high frequency transmitting tube.
Copper foil antenna is small English alphabet n shape, connects above two vertical Copper Foils with arc Copper Foil kissing.Its size is, Copper Foil width is 2 millimeters, and the vertical Copper Foil length in two, left and right is 30 millimeters, and the spacing of two vertical Copper Foils is 20 millimeters, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5 millimeters.
Radiating circuit: the collector electrode of vapotron connects the output of copper foil antenna, the base resistance of vapotron is connected between the input of copper foil antenna and the base stage of vapotron, three terminations of crystal oscillator, a termination connects the input of copper foil antenna, another termination connects the base stage of vapotron, 3rd termination connects the emitter of vapotron, the input of copper foil antenna and an indirect tunable capacitor of output, a tunable capacitor fixed capacity in parallel, decoupling capacitor is connected between the output of copper foil antenna and ground, an indirect shunt capacitance of the input of copper foil antenna and the emitter of vapotron.
Indicating circuit is connected into by indicator light and protective resistance, a termination power of protective resistance, ground connection after other end indicating lights connected in series.
2, base stage two bit lines of coding integrated package connect power supply.
3, indicator light is luminous tube.
4, the fixed code of coding integrated package is both earth-free does not also connect power supply.
5, the electric capacity in the parallel circuits of coil and electric capacity, RC parallel circuits is electrodeless electric capacity.
Measure summation
The utility model is to one of series of studies that common coding integrated package is done, the reason why becoming series of studies is, this achievement is that the fixed code with tri-state state is upgraded to a kind of highly dense encoding state, because this coding has the change of a variety of form, and each version all has great importance, for promoting the level of confidentiality degree of coding, it uses a kind of novel oscillating circuit, wherein contain frequency-selective network, make frequency stabilization, the conversion realizing common tri-state coding is launched, increase the level of confidentiality degree of solid-state coded class, for reducing extraneous bad weather and surrounding environment to the impact of launching, formulate a kind of copper foil antenna of English lower case n shape, realize the matched well of launching and receiving, improve the performance of transmitting further.
This measure is explained as follows further:
One, the reason of the conversion of code is realized:
1, oscillating circuit is used to be a kind of well measure as the circuit controlling dicode, also be the main part in this measure, the base resistance of the parallel circuits of coil and electric capacity, RC parallel circuits, frequency-selecting triode, frequency-selecting triode forms frequency-selecting type oscillating circuit, has good performance.
The principle of its vibration is: in measure, frequency-selecting triode is the supplementary amplifier tube of energy.The parallel circuits of coil and electric capacity, RC parallel circuits constitute a frequency-selective network respectively, network both end voltage is added to the emitter of triode through the dividing potential drop of electric capacity, thus strong positive feedback is defined, with the process of the capacitor charging in parallel circuits formed vibrate before the half period, become after the electric capacity in parallel circuits is full of electricity every straight state, feedback terminates, and the capacitor discharge in parallel circuits, becomes the later half cycle of vibration.The collector electrode of output triode exports corresponding magnitude of voltage, the change code end of control coding integrated package.
Define a kind of frequency-selective network by coil and electric capacity, its principle is, when frequency is too high, by the capacitance short-circuit that coil is in parallel, and when underfrequency, by the short circuit of RC parallel circuits, so can only be that a kind of frequency could form vibration.Wherein adjustment coil or the worth of electric capacity are worked as, and just can adjust to the frequency values needed for us.
Electric capacity in the parallel circuits of coil and electric capacity, RC parallel circuits adopts electrodeless electric capacity, can not produce electric leakage behavior, make frequency more stable, forms the unification of the vibration same period.
In measure 1, its feature one is, adjustable at the frequency agile due to oscillating circuit, completely can the such ideal situation of furnishing when producing, and within the time required for operation push-button, (as 0.5 second), completes the necessary condition of twice change code.Its feature two is, need not two pieces because only using a block forecast integrated package, and this integrated circuit chip select end ground connection, circuit is reliable.
Two, the principle of code is become:
Coding integrated package has 8 bit address codes, 4 bit data codes, wherein 6 bit address codes connect as fixed code, in all the other two bit address codes, one to connect with the output of frequency-selecting type oscillating circuit and becomes the first variation code, and the output of another one NAND gate circuit connects becomes the second variation code; 4 bit data codes i.e. 4 bit lines, two earth connections wherein, and what connect with the output of frequency-selecting type oscillating circuit in another two is the first movable bit line, and what the output of NAND gate circuit connected is the second movable bit line.
Because frequency-selecting type oscillating circuit connects the first variation code of coding integrated package, the input of the first movable bit line NAND gate circuit, second variation code of coding integrated package is connected the output of not circuit with the second movable bit line, therefore, start at frequency-selecting type oscillating circuit, when the output of frequency-selecting type oscillating circuit is high-order, the the first variation code connected and the first movable bit line are also thereupon for high-order, and not circuit is now because be input as height, so export as low, the second variation code that it connects and the second movable bit line are also low level thereupon, when the output of frequency-selecting type oscillating circuit is low level, first variation code and the first movable bit line are also low thereupon, not circuit is now because be input as low, therefore defeated is high-order, the second variation code that it connects and the second movable bit line are also thereupon for high, so the first variation code and the first movable bit line are the output transforms along with frequency-selecting type oscillating circuit, and the second variation code and the second movable bit line are the output transforms along with not circuit, what obtain is change the code coded signal contrary with the first movable bit line with first.By the excitation to modulating tube, reach the object of dicode modulate emission.
Transform data code while the code of address substitute, further improves the level of confidentiality of coding.
Three, the explanation of radio circuit:
The distance of 1, launching and sensitivity and weather have a significant impact, if by traditional method for designing, very difficult guarantee meets the designing requirement about remote control electrical appliance, its reason is, general transmitting can the Iterim Change position of launching and distance, can receive signal just can as long as can meet reception at that time.But the remote control product had, but this position of launching can not be changed and distance reaches the object of Received signal strength, therefore, in radio circuit, for reducing extraneous bad weather and surrounding environment to the impact of launching, once at bad weather, be just difficult to the performance ensureing product, so necessary measure must be increased.And this measure is exactly the copper foil antenna formulating a kind of English lower case n shape for this situation, connect with arc Copper Foil kissing above two vertical Copper Foils.The width of its Copper Foil is 2 millimeters, and the vertical Copper Foil length in two, left and right is 30 millimeters, and the spacing of two vertical Copper Foils is 20 millimeters, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5 millimeters.The better coupling that allowed launching and receiving have.Experiment proves, such enforcement, is conducive to promoting the sensitivity of launching, to reduce extraneous bad weather and environment to the impact of launching.
2, in radiating circuit, adopt crystal oscillator type circuit, its benefit is that radio frequency is stablized, and characteristic is good, so may be used for the place needing remote control distance far away.
Four, the effect of indicating circuit is, can conclude whether reflector normally works with checking that whether indicator light is bright, conveniently reliable.
After implementing or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, oscillating circuit is formed with coding integrated package and coordinates, and the regular coding form of coding integrated package has been become movable oscillation form, has reached the object of variation code, therefore, greatly improve the level of confidentiality of coding, have the very high anti-ability of cracking.
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 are larger than a kind of code breaks difficulty of character.
3, the dicode of this measure is launched reliable, when its reason is the change code of transmitting dicode generation, can not be disorderly, and only can repeat, two kinds become code state obviously, and offer a clear explanation, the receiving unit designed with inventor extremely mates.
4, circuit is reliable, and one is that oscillating circuit is reliable, adds frequency-selective network, so frequency is more stable, two are copper foil antennas is English lower case n shape, and launching and receiving more mates.
5, produce easily, one be need not be valuable equipment and instrument, two is that technology is simple, and three are that circuit is simplified and component requirements used is low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
Accompanying drawing explanation
Fig. 1 is this measure each several part schematic diagram.
In figure: 1, frequency-selecting type oscillating circuit; 2, the output of frequency-selecting type oscillating circuit; 3, coding integrated package; 4, first of integrated package of encoding changes code; 5, the first movable bit line of coding integrated package; 6, not circuit; 7, second of integrated package of encoding changes code; 8, the fixed code of coding integrated package; 9, the second movable bit line of coding integrated package; 10, all the other bit lines of coding integrated package; 11, the output of coding integrated package; 12, radio circuit.
Fig. 2 is frequency-selecting type oscillating circuit figure.
In figure: 101, the base resistance of frequency-selecting triode; 102, the parallel circuits of coil and electric capacity; 103, RC parallel circuits; 105, frequency-selecting triode; 106, output triode; 107, collector resistance; 2, the output of frequency-selecting type oscillating circuit.
Fig. 3 is radio circuit figure.
In figure: integrated package of 3, encoding; 11, the output of coding integrated package; 13, modulated resistance; 15, triode is modulated; 16, indicating circuit; 18, crystal oscillator; 22, the base resistance of vapotron; 23, shunt capacitance; 25, vapotron; 26, tunable capacitor; 27, fixed capacity in parallel with tunable capacitor; 28, decoupling capacitor; 30, copper foil antenna.
concrete embodiment
Fig. 1, Fig. 2, Fig. 3 describe the concrete a kind of mode implemented jointly.
1, element is selected: integrated package of wherein encoding selects 2262, and transmitting tube selects high-frequency tube, also can select 8050 triodes.
2, weld: radio circuit welds as shown in Figure 3, and frequency-selecting type oscillating circuit welds as shown in Figure 2.
3, modulate.
Adjustment oscillating circuit.
Adjustment duration of oscillation: be connected on the output of oscillating circuit with oscillographic red bar pen, black meter pen ground connection.
Observe oscillatory condition, make it frequency and meet the requirements.If frequency is undesirable, first adjust frequency-selecting, the value of adjustment two electric capacity, or the size of coil, adjust to required frequency values.
Adjustment 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 tunable capacitor be adjusted, or the resistance value of coding chip output, until sensitivity meets the requirements.
Make receiver with common single code reception device, now receiving unit can not receive signal.If with the specific dicode signal receiver of inventor's design, then dicode receiver can receive signal.
Claims (5)
1. increase the frequency-selecting type vibration reflector of sensitivity, it is characterized in that: be jointly made up of frequency-selecting type oscillating circuit, not circuit, coding integrated package, radio circuit, indicating circuit;
Wherein: frequency-selecting type oscillating circuit connects the first variation code of coding integrated package, the input of the first movable bit line NAND gate circuit, second variation code of coding integrated package is connected the output of not circuit with the second movable bit line, the output of coding integrated package connects radio circuit, and indicating circuit is connected between power supply and ground wire;
Coding integrated package has 8 bit address codes, 4 bit data codes, wherein 6 bit address codes connect as fixed code, in all the other two bit address codes, one to connect with the output of frequency-selecting type oscillating circuit and becomes the first variation code, and the output of another one NAND gate circuit connects becomes the second variation code; 4 bit data codes i.e. 4 bit lines, two earth connections wherein, and what connect with the output of frequency-selecting type oscillating circuit in another two is the first movable bit line, and what the output of NAND gate circuit connected is the second movable bit line;
The output of frequency-selecting type oscillating circuit connects the change code end of coding integrated package, and connect radio circuit after the output connection modulated resistance of coding integrated package, indicating circuit is connected between power supply and ground wire;
Frequency-selecting type oscillating circuit is made up of frequency-selective network, output triode, collector resistance;
Frequency-selective network is made up of the base resistance of the parallel circuits of coil and electric capacity, RC parallel circuits, frequency-selecting triode, frequency-selecting triode;
Coil is connected power supply with one end of the parallel circuits of electric capacity, the other end connects the collector electrode of frequency-selecting triode, the emitter of frequency-selecting triode connects one end of RC parallel circuits, the other end earth connection of RC parallel circuits, the base resistance of frequency-selecting triode is made up of two resistance, one termination power of a resistance, the base stage of other end selecting frequency triode, the base stage of one end selecting frequency triode of second resistor, the other end earth connection of second resistor, the output of the current collection of frequency-selecting triode very frequency-selective network, connect the base stage of output triode, the collector electrode of output triode connects a collector resistance to power supply, namely the emitter of output triode is the output of frequency-selecting type oscillating circuit,
Radio circuit is made up of modulation circuit, radiating circuit, copper foil antenna:
Modulation circuit is made up of modulated resistance and modulation triode, the output of coding integrated package connects one end of modulated resistance, the base stage of another termination modulation triode of modulated resistance, the grounded emitter line of modulation triode, the collector electrode of modulation triode connects the emitter of radiating circuit medium-high frequency transmitting tube;
Copper foil antenna is small English alphabet n shape, connects above two vertical Copper Foils with arc Copper Foil kissing;
Its size is, Copper Foil width is 2 millimeters, and the vertical Copper Foil length in two, left and right is 30 millimeters, and the spacing of two vertical Copper Foils is 20 millimeters, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5 millimeters;
Radiating circuit: the collector electrode of vapotron connects the output of copper foil antenna, the base resistance of vapotron is connected between the input of copper foil antenna and the base stage of vapotron, three terminations of crystal oscillator, a termination connects the input of copper foil antenna, another termination connects the base stage of vapotron, 3rd termination connects the emitter of vapotron, the input of copper foil antenna and an indirect tunable capacitor of output, a tunable capacitor fixed capacity in parallel, decoupling capacitor is connected between the output of copper foil antenna and ground, an indirect shunt capacitance of the input of copper foil antenna and the emitter of vapotron,
Indicating circuit is connected into by indicator light and protective resistance, a termination power of protective resistance, ground connection after other end indicating lights connected in series.
2. the frequency-selecting type vibration reflector of increase sensitivity according to claim 1, is characterized in that: base stage two bit lines of coding integrated package connect power supply.
3. the frequency-selecting type vibration reflector of increase sensitivity according to claim 1, is characterized in that: indicator light is luminous tube.
4. the frequency-selecting type vibration reflector of increase sensitivity according to claim 1, is characterized in that: the fixed code of coding integrated package is both earth-free does not also connect power supply.
5. the frequency-selecting type vibration reflector of increase sensitivity according to claim 1, is characterized in that: the electric capacity in the parallel circuits of coil and electric capacity, RC parallel circuits is electrodeless electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520341316.7U CN204652360U (en) | 2015-05-25 | 2015-05-25 | Increase the frequency-selecting type vibration reflector of sensitivity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520341316.7U CN204652360U (en) | 2015-05-25 | 2015-05-25 | Increase the frequency-selecting type vibration reflector of sensitivity |
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| CN204652360U true CN204652360U (en) | 2015-09-16 |
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| CN201520341316.7U Expired - Fee Related CN204652360U (en) | 2015-05-25 | 2015-05-25 | Increase the frequency-selecting type vibration reflector of sensitivity |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20170525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |