CN204013492U - Dual-code dual-bit radiating circuit - Google Patents
Dual-code dual-bit radiating circuit Download PDFInfo
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- CN204013492U CN204013492U CN201420466486.3U CN201420466486U CN204013492U CN 204013492 U CN204013492 U CN 204013492U CN 201420466486 U CN201420466486 U CN 201420466486U CN 204013492 U CN204013492 U CN 204013492U
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Abstract
Dual-code dual-bit radiating circuit, belong to automatic control technology field, by two NPN triode oscillating circuits, bidirectional analog switch circuit, coding integrated circuit, high frequency transmission circuit, indicating circuit, control switch forms jointly, indicating circuit is the circuit whether indicating control switch connects, two outputs of two NPN triode oscillating circuits connect respectively two bidirectional analog switch circuits, the output of two bidirectional analog switch circuits connects respectively change code end and one of them bit line end of the integrated circuit of encoding, when control switch is connected, the starting of oscillation immediately of operation amplifier oscillator, possess 1 and X or 0 and the cyclical-transformation of X through bidirectional analog switch circuit make to encode change code end and the bit line of integrated circuit, what now radio circuit sent is no longer solid size, and possesses conversion, realize the radiating circuit of single ripple dual-code dual-bit, reduce the price of product, remote control product can be used widely.
Description
Technical field
Belong to automatic control technology field.
Background technology
Realize the another kind of mode of dibit dicode launching code invention, allow a yard line realize 1 with X code, or 0 and the conversion of X code, the integrated bit line of encoding also possesses 1 and X, or 0 and the conversion of X.
Present remote control product, because coding is single, level of confidentiality is inadequate, causes applying in high-grade products, if applied on anti-theft safety door, that anti-theft safety door is just no longer antitheft, perform practically no function, well-known, application remoting technology, first just must encode, the major significance of its coding is to avoid being cracked by other people.So the quality of coding level of confidentiality, is directly connected to the quality of product quality.From present technical merit, present coding integrated circuit, a kind of is the kind taking rolling code as representative of higher gears, the advantage of this adhesive integrated circuit is that coding is complicated, cracks 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.
Solve such problem, also require further study, need the technological means of innovation, therefore, telecontrol engineering also needs further raising, could really allow people use relievedly.
Summary of the invention
Main purpose of the present utility model is to propose the dual-code dual-bit radiating circuit that a kind of computing vibration is controlled, it is taking the 2262 coding integrated circuits as representative as auxiliary, operation amplifier integrated circuit vibrates, realize the radiating circuit of single ripple dual-code dual-bit, the price that reduces product, remote control product can be used widely.
The measure that this patent proposes is:
1, dual-code dual-bit radiating circuit is made up of jointly two NPN triode oscillating circuits, bidirectional analog switch circuit, coding integrated circuit, high frequency transmission circuit, indicating circuit, control switch.
Wherein: one end of control switch connects battery supply, the other end of control switch is the power supply of two NPN triode oscillating circuits, coding radio circuit, indicating circuit.
Indicating circuit is made up of protective resistance and indicator light.
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance.
Two NPN triode type oscillating circuits: connect the first commissure electric capacity between the collector electrode of a NPN triode and the base stage of the 2nd NPN triode, the first collector resistance one termination power, the collector electrode of another termination the one NPN triode, the base stage of the 2nd NPN triode connects the first luminous discharge tube over the ground, the base stage of the one NPN discharge diode connects the second luminous discharge tube over the ground, between the base stage of the collector electrode of the 2nd NPN triode and a NPN triode, connect the second commissure electric capacity, the base resistance of two NPN triodes all connects power supply, the collector electrode of the one NPN triode is as the first output of two NPN triode type oscillating circuits, the collector electrode of the 2nd NPN triode is as the second output of two NPN triode type oscillating circuits.
Bidirectional analog switch circuit becomes code switch circuit and control bit wiretap the electric circuit constitute by controlling.
Control the first output of the two NPN triode type oscillating circuits of control end connection that become code switch circuit, control the change code end of the output connection coding integrated circuit that becomes code switch circuit, control the input ground that becomes code switch circuit.
The control end of control bit wiretap circuit connects the second output of two NPN triode type oscillating circuits, and the output of control bit wiretap circuit connects a bit line end in coding integrated circuit, and resistance of input termination of control bit wiretap circuit is to power supply.
High frequency transmission circuit is made up of radiating circuit and copper foil antenna.
Copper foil antenna is specific English lower case N-shaped, article two, vertical Copper Foil top connects with arc Copper Foil kissing, antenna Copper Foil width is 2mm, the Copper Foil length of two vertical parallel in left and right is 30mm, article two, the spacing of vertical parallel Copper Foil is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm.
Radiating circuit: one end of copper foil antenna is input, i.e. power firestreak end, the live wire of coding integrated circuit is connected on power firestreak end.
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 modulating tube, modulating tube collector electrode 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, two commissure electric capacity in two NPN triode type oscillating circuits are electrodeless electric capacities.
3, the second connection of the input of control change code switch circuit is to connect a resistance to power supply.
4, the second connection of the input of control bit wiretap circuit is ground connection.
5, antenna Copper Foil width is 2mm, and the Copper Foil length of two vertical parallel in left and right is 30mm, and the spacing of two vertical parallel Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm.
This measure is further explained as follows:
When transmitting switches on power,, after control switch closure, two NPN triode oscillating circuits start rapidly, upper because the change code of coding integrated circuit has terminated at the first output of two NPN triode oscillating circuits, therefore, can send the code of conversion.
1,, in this measure 1, first formed the mapping mode of a kind of yard.Designer has designed interlock circuit and has coordinated with it, and this oscillating circuit is to be mutually connected commissure electric capacity in base stage at the corresponding levels with the other side's collector electrode with two NPN triodes to form.The principle that forms vibration is: when opening after power supply, in the time that a certain pipe collector is a high position, charge to the other side's base stage by commissure electric capacity, make square tube base stage obtain larger base flow, thereby accelerate to change to saturated trend, the logical collector voltage of triode that simultaneously saturated trend changes reduces, transmit the signal of saturated feedback low level to the other side's triode by commissure electric capacity, strong positive feedback impels the blanking tube originally changing to cut-off direction again to tend to cut-off, blanking tube makes saturated pipe more saturated by commissure electric capacity conversely, strong positive feedback completes the front half period of vibration for the first time, after commissure capacitor charging, former saturated pipe will change to exit axis, thereby the commissure electric capacity of two pipes transmits saturated and pick-off signal again, form before the half period identical feedback change procedure, just the state variation of two pipes is different from the front half period, the saturated pipe of front half period transfers cut-off to, blanking tube becomes saturated, so principle produces the cycle for the second time, cycle for the third time------etc.
In foregoing circuit simple in circuits, less demanding to triode, is easy to be adjusted into the desired frequency of the person of establishing, and mates with whole circuit.Be a kind of outstanding circuit, the feature of this circuit is that the withstand voltage height of triode can be used in and requires high circuit, thereby adaptive surface is very wide, has expanded transmitting field.
The bit line of coding integrated circuit or code line, if a high position is 1, if low level is 0, if suspend, are X.
2, in measure 1, oscillating unit has formed such annexation with coding integrated circuit, and the coded portion of coding integrated circuit has been divided into two parts, and a part is the fixed code having connected in advance, and another part is the variation code being connected with oscillating unit.In the time that manual operation is launched, oscillating unit vibration, the movable 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, reach the object of dicode modulate emission.
3, can become code in realize can realize 1 with X code, or 0 and the principle of the conversion of X code be: in measure 1, control and become code switch circuit, in the time that vibration is output as a high position, the control connecting becomes the control end of code switch circuit into high-order, at this moment switch connection, so becoming code end connects with ground wire, be 0, in the time that vibration is output as low level, the control end that the control connecting becomes code switch circuit is low level, at this moment switch disconnects, do not connect energy with ground wire so become code end, be suspended state, thereby realize be 0 with the cyclical-transformation of X, as Fig. 1 describes, if connected by measure 3, can obtain 1 with the change code of X.
4, with above-mentioned change coding mode the same be the conversion of bit line of coding integrated circuit, in the time that vibration is output as a high position, the control end of the control bit wiretap circuit connecting is for high-order, at this moment switch connection, because the input termination of control bit wiretap circuit is high-order, so bit line is high-order, i.e. said 1 state; If when the control end of control bit wiretap circuit is low level, control bit wiretap circuit disconnects, bitline state does not now have and ground wire joins, the output that is control bit wiretap circuit does not join with input, for suspended state, this bit line is also suspended state, so this bit line when vibration become all the time 1 with the variation suspending, figure mono-in the accompanying drawings, described be realize 1 with the cyclical-transformation of X, as connected control bit wiretap circuit by measure 4, can realize 0 with the cyclical-transformation of X.
The bit line of the reception of institute's adapted will pass through special connection, and not make it to produce when the bit line receiving does not mate with the bit line of transmitting affects distance and do not receive the effect of signal accurately, is so more conducive to increase level of confidentiality.
5, the bidirectional analog switch using in measure 1 is CD4066, in the time that control end adds high level, and switch conduction, conduction impedance is lower, and in addition, conduction impedance is substantially constant in whole input reference signal.Eliminated the variation of switching transistor threshold voltage with input signal, therefore within the scope of whole working signal, conduction impedance is lower.Compared with single channel switch, have that input signal peak voltage ranges equals supply voltage and the advantage such as conduction impedance is more stable in input reference signal.Switch cut-off in the time that control end adds low level.When analog switch conducting, conducting resistance is tens ohm; When analog switch cut-off, present very high impedance, can become open circuit.Analog switch can transmission of digital signals and analog signal, and the upper limiting frequency of the analog signal that can transmit is 40MHz.That analog switch has possessed is low in energy consumption, speed fast, machinery-free contact, volume are little and the advantage such as long service life.
6, because the frequency agile of two NPN triode oscillating circuits is adjustable, completely can the such ideal situation of furnishing in the time producing, within the needed time of operation push-button, (as 0.5 second), has completed the necessary condition of twice variation code.
7 transmit is easily disturbed by other remote control product, therefore select two coding integrated circuits, greatly reduce the impact of other remote control product, transmitting is no longer single code bit, therefore greatly promoted the accuracy of transmitting, and specific a kind of copper foil antenna of English lower case n shape, allow transmitting have better coupling with reception.
8, in radiating circuit, adopt crystal oscillator formula circuit, its benefit is that radio frequency is stable, characteristic is good, so can be for needing remote control distance place far away.
Enforcement is rear or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, realized the conversion of single ripple dual-code dual-bit, 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.
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, the conversion of code line and bit line is more flexible, can be welded as 1 with the change code of X, also can be welded as 0 and the change code of X, increased level of confidentiality.
4, 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.
5, operation amplifier oscillating circuit circuit is simple, easily oscillates, and vibrational stabilization, is easy to coordinate with overall circuit.
6, the benefit of bit line generation conversion is, in the time coordinating with reception, the bit line of reception connects by special mode, produces when the bit line receiving does not mate with the bit line of transmitting and affects distance and do not receive the effect of signal accurately, is conducive to increase level of confidentiality.
7, 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.
8, 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.
Brief description of the drawings
Fig. 1 is total measure schematic diagram of the dibit reflector of computing vibration control.
In figure: 1, control switch; 1-1, power line; 2, protective resistance; 3, indicator light; 4, crystal oscillator; 5, the base resistance of vapotron; 6, shunt capacitance; 7, tunable capacitor; 8, the electric capacity in parallel with tunable capacitor; 9, vapotron; 10, coding integrated circuit; 11, the output of coding integrated circuit; 12, modulated resistance; 13, modulation triode; 14, modulation triode resistance to earth; 15, coding integrated circuit because of fixed code; 16, two NPN triode oscillating circuits; 17, control and become code switch circuit; 18, control the control end that becomes code switch circuit, i.e. first of two NPN triode oscillating circuits the output; 20, control the output that becomes code switch circuit; 21, control the input that becomes code switch circuit; 22, control bit wiretap circuit; 23, the control end of control bit wiretap circuit, i.e. second of two NPN triode oscillating circuits the output; 24, the input of control bit wiretap circuit; 25, the output of control bit wiretap circuit; 26, the resistance between output and the power supply of control bit wiretap circuit; 27, the other bit line of coding integrated circuit; 28, copper foil antenna.
Fig. 2 is copper foil antenna schematic diagram.
In figure: 28, copper foil antenna; 30, the spacing of two vertical Copper Foils; 31, the Copper Foil width of copper foil antenna; 32, the height of vertical Copper Foil; 33, kiss connects the height of the arc Copper Foil of two vertical Copper Foils.
Fig. 3 is two NPN triode oscillating circuit figure.
In figure: 1-1, power line; 18, control the control end that becomes code switch circuit, i.e. first of two NPN triode oscillating circuits the output; 23, the control end of control bit wiretap circuit, i.e. second of two NPN triode oscillating circuits the output; 01, a NPN triode; 02, the 2nd NPN triode; 03, the first commissure electric capacity; 04, the first luminous discharge tube; 05, the second commissure electric capacity; 06, the second luminous discharge tube; 07, the collector resistance of a NPN triode; 08, a NPN transistor base resistance; 09, the 2nd NPN transistor base resistance; 010, the collector resistance of the 2nd NPN triode.
embodiment
Fig. 1, Fig. 2, Fig. 3 have described a kind of mode of concrete enforcement jointly.
Two NPN triode oscillating circuits are pressed the welding shown in Fig. 3.
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, modulation:
Adjust two NPN triode oscillating circuit relevant parameters.
Adjust duration of oscillation: adjust duration of oscillation: be connected on the output of oscillating circuit black meter pen ground connection with oscillographic red pen.
Observe vibration situation, make it frequency and meet the requirements.If frequency is undesirable, adjust commissure electric capacity and collector resistance value size, if frequency is too fast, capacitance or resistance value increase, otherwise reduce its value.
Adjust radio frequency and modulation operating state:
If become code into 0 and X, when the situation that oscilloscope shows is aobvious low level, signal is bright line, and when aobvious X signal, due bright line be the signal of " flower shields ".
If become code into 1 and X, the situation that oscilloscope shows is high-order bright line while being aobvious 0 signal, and when aobvious X signal, due bright line be the signal of " flower shields ".
Adjust radio frequency and modulation operating state.
If make receiver with oscilloscope, be not directly connected with reflector, at this moment, in the time 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.
Make receiver with common solid size 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 (5)
1. dual-code dual-bit radiating circuit, is characterized in that: be jointly made up of two NPN triode oscillating circuits, bidirectional analog switch circuit, coding integrated circuit, high frequency transmission circuit, indicating circuit, control switch:
Wherein: one end of control switch connects battery supply, the other end of control switch is the power supply of two NPN triode oscillating circuits, coding radio circuit, indicating circuit;
Indicating circuit is made up of protective resistance and indicator light:
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance;
Two NPN triode type oscillating circuits: connect the first commissure electric capacity between the collector electrode of a NPN triode and the base stage of the 2nd NPN triode, the first collector resistance one termination power, the collector electrode of another termination the one NPN triode, the base stage of the 2nd NPN triode connects the first luminous discharge tube over the ground, the base stage of the one NPN discharge diode connects the second luminous discharge tube over the ground, between the base stage of the collector electrode of the 2nd NPN triode and a NPN triode, connect the second commissure electric capacity, the base resistance of two NPN triodes all connects power supply, the collector electrode of the one NPN triode is as the first output of two NPN triode type oscillating circuits, the collector electrode of the 2nd NPN triode is as the second output of two NPN triode type oscillating circuits,
Bidirectional analog switch circuit becomes code switch circuit and control bit wiretap the electric circuit constitute by controlling:
Control the first output of the two NPN triode type oscillating circuits of control end connection that become code switch circuit, control the change code end of the output connection coding integrated circuit that becomes code switch circuit, control the input ground that becomes code switch circuit;
The control end of control bit wiretap circuit connects the second output of two NPN triode type oscillating circuits, and the output of control bit wiretap circuit connects a bit line end in coding integrated circuit, and resistance of input termination of control bit wiretap circuit is to power supply;
High frequency transmission circuit is made up of radiating circuit and copper foil antenna:
Copper foil antenna is specific English lower case N-shaped, article two, vertical Copper Foil top connects with arc Copper Foil kissing, antenna Copper Foil width is 2mm, the Copper Foil length of two vertical parallel in left and right is 30mm, article two, the spacing of vertical parallel Copper Foil is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm;
Radiating circuit: one end of copper foil antenna is input, i.e. power firestreak end, the live wire of coding integrated circuit is connected on power firestreak end;
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 modulating tube, modulating tube collector electrode 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. dual-code dual-bit radiating circuit according to claim 1, is characterized in that: two commissure electric capacity in two NPN triode type oscillating circuits are electrodeless electric capacities.
3. dual-code dual-bit radiating circuit according to claim 1, is characterized in that: the second connection of controlling the input that becomes code switch circuit is to connect a resistance to power supply.
4. dual-code dual-bit radiating circuit according to claim 1, is characterized in that: the second connection of the input of control bit wiretap circuit is ground connection.
5. dual-code dual-bit radiating circuit according to claim 1, it is characterized in that: antenna Copper Foil width is 2mm, the Copper Foil length of two vertical parallel in left and right is 30mm, and the spacing of two vertical parallel Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical parallel Copper Foils is 4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466486.3U CN204013492U (en) | 2014-08-19 | 2014-08-19 | Dual-code dual-bit radiating circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420466486.3U CN204013492U (en) | 2014-08-19 | 2014-08-19 | Dual-code dual-bit radiating circuit |
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| CN204013492U true CN204013492U (en) | 2014-12-10 |
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| CN201420466486.3U Expired - Fee Related CN204013492U (en) | 2014-08-19 | 2014-08-19 | Dual-code dual-bit radiating circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106815999A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of double wave dicode launches design |
| CN106935010A (en) * | 2015-12-31 | 2017-07-07 | 重庆宁来科贸有限公司 | A kind of digital secrecy remote control transmitter |
-
2014
- 2014-08-19 CN CN201420466486.3U patent/CN204013492U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106815999A (en) * | 2015-11-29 | 2017-06-09 | 重庆尊来科技有限责任公司 | A kind of double wave dicode launches design |
| CN106935010A (en) * | 2015-12-31 | 2017-07-07 | 重庆宁来科贸有限公司 | A kind of digital secrecy remote control transmitter |
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Granted publication date: 20141210 Termination date: 20150819 |
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