CN204068944U - A kind of sequential type integrated change code radiating circuit - Google Patents
A kind of sequential type integrated change code radiating circuit Download PDFInfo
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- CN204068944U CN204068944U CN201420563985.4U CN201420563985U CN204068944U CN 204068944 U CN204068944 U CN 204068944U CN 201420563985 U CN201420563985 U CN 201420563985U CN 204068944 U CN204068944 U CN 204068944U
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Abstract
A kind of sequential type integrated change code radiating circuit, belong to telecontrol engineering field, by encoding block, automatic changing code circuit, start-up circuit, radio frequency unit, battery supply, control switch forms the radiating circuit having multiple conversion factor jointly, battery supply connects one end of control switch, the control switch other end becomes circuit power, encoding block has 8 bit code lines, wherein two connect for changing code with automatic changing code circuit, there are four bit line output, wherein two accesses variation circuit one-tenth automatically, convert along with automatically changing the conversion of circuit, after battery supply connected by control switch, a start-up circuit operating instant, automatic changing code circuit forms vibration after start-up circuit cuts out, two of encoding block variation codes and two bit lines are also vibrated thereupon, form conversion, the dicode of conversion is sent by radio frequency unit, improve level of confidentiality widely, there is the very high anti-ability of cracking.
Description
Technical field
Belong to telecontrol engineering field.
Background technology
Telecontrol engineering, coding is an important link, this is the key increasing level of confidentiality degree, that how to improve encoding block cracks ability, present technology, mainly rest in two kinds of thinkings, a kind of thinking be from improve encoding block code number improve the ability of cracking, if code is more, obviously prevent cracking ability larger, the transmitting of coding is in change by another kind of thinking, obviously too increase and prevent cracking ability, such thinking just creates rolling code with the kind of representative, its advantage cracks difficulty, but technical difficulty is large, cost is high, be not suitable for middle-size and small-size minuscule-type-enterprise, thinking of the present invention does not go research with above-mentioned two kinds of thinkings, but from the research of other thinking.But by other what thinking, this just needs innovation, this is one, its two be macroscopic view innovative approach decide after, which type of by technological means realize, does so also will do second time innovation, and the technological means adopted have good operability? etc. all can become variety of problems in research.
Due to will very large meaning be had after the enforcement of the scheme of this Thinking Creation.So our unit has applied for the launching and receiving line circuit of some these thinkings for the previous period; but because the arrangement mode of this fixed code has various ways; far can not complete and can not contain one by one; so our unit makes system innovation to this scheme; the scheme of the invention of proposition system, becomes the protect system of series.
Summary of the invention
Main purpose of the present utility model proposes a kind of New Measure, this measure is the integrated circuit by the low regular coding form of cost, increase the conversion factor of launching, thus launch a kind of code thread having multiple conversion factor, thus large improve this class coding crack ability, have great significance, one is that the invention applied for our unit is supporting, and two is for society provides the technical staff of same thinking research to provide wide space.Three is to become a kind of novel High Security Level encoding block after being produced into integrated circuit.
The measure that this patent proposes is:
1, sequential type integrated change code radiating circuit is by an encoding block, automatic changing code circuit, start-up circuit, radio frequency unit, and battery supply, control switch forms jointly.
Battery supply connects one end of control switch, and the control switch other end becomes circuit power, and in the power end of encoding block, the power end of ic 555, start-up circuit, the positive pole of differential capacitance, is all connected on circuit power.
Encoding block has 8 bit code lines, four output bit-lines, 6 in 8 bit code lines connect as fixed code, the output of ic 555 in automatic changing code circuit is connect with a bit line in four output bit-lines after a bit code line in all the other two bit code lines connects the control diode of the first variation code, become the first variation code and the first bit line output, the output being connected inverter in automatic changing code circuit after another bit code line connects the control diode of the second variation code with another one bit line becomes the second variation code and second line output terminal.
Automatic changing code circuit is made up of jointly ic 555, peripheral element, inverter, two control diodes.
Peripheral element is made up of the first oscillation resistance, the second oscillation resistance, isolation resistance, duration of oscillation constant capacitance.
The output of ic 555 connects three tunnels, the first via connects the input of inverter, second tunnel connects the first bit line output of encoding block, 3rd tunnel connects the control diode cathode of the first variation code, the control diode cathode of the first variation code connects the first variation code, the output of inverter connects two-way, and the first via connects the second line output terminal of encoding block; Second tunnel connects the control diode cathode of the second variation code, and the control diode cathode of the second variation code connects the second variation end, a termination power of the first oscillation resistance, the discharge end of another termination ic 555; The end that second oscillation resistance is done is connected on the discharge end of ic 555, and the other end is connected on the low valve end of ic 555, and the low valve end of ic 555 has also connect the positive pole of duration of oscillation constant capacitance, the minus earth of duration of oscillation constant capacitance; One end of isolation resistance is connected to the high threshold end of ic 555, and the other end is connected on the low valve end of ic 555.
Start-up circuit is made up of differential capacitance, discharge resistance, discharge diode, diac: a termination circuit power supply of differential capacitance, discharge resistance is connected between circuit power and ground wire, another termination two-way of differential capacitance, the first via connects discharge diode to ground wire, second tunnel connects the positive pole of diac, and the negative pole of diac connects the high threshold end of ic 555.
Radio frequency unit is made up of modulation circuit and radio circuit: modulation circuit is made up of modulated resistance and modulation triode.
Receive the base stage of modulation triode after the output termination modulated resistance of encoding block, the grounded emitter line of modulation triode, the collector electrode of modulation triode connects radio circuit.
2, any two bit code lines of 8 bit codes of encoding block connect two respectively and control diode, and this two bit codes line is variation code.
3, be with integrated form made by the technical program.
4, control switch is key switch.
5, differential capacitance is electrodeless electric capacity.
6, modulating triode is NPN triode.
This measure is explained as follows further:
This measure implement after can produce following emission function be one group conversion principle, one be launch time can launch multiple signal.Two are and are two kinds of different coded signals all the time.Three is have timing, namely be after opening power supply, what first send is the subcategory number that fixed code, first changes code, one subcategory number of the second variation code, what then send is the quadratic code that fixed code, first changes code, the quadratic code of the second variation code, and four is the time of at every turn launching is an individual transient state, five is the bit lines sent out for the first time can only be that a corresponding bit line can receive, and is namely have the corresponding uniqueness received.Therefore corresponding reception also must have five heavily to convert, so change the integrated performance of original coding completely.
1, repeatedly emission principle is formed:
After transmitting switches on power, ic 555 is started working, and what the peripheral element due to ic 555 was connected into is an oscillating circuit, the principle of its vibration.
Because low valve end is connected by isolation resistance (211 in Fig. 2) with high threshold end, so at the beginning of energising, duration of oscillation constant capacitance (213 in Fig. 2) voltage that this end connects is 0, lower than its low valve terminal voltage, so output exports high-order, its output connect encoding block the first bit line output end (104 in Fig. 2) be also high-order, comprise the first variation code (102 in Fig. 2) of connection also in high-end trim, at this moment power end is charged to duration of oscillation constant capacitance by the second oscillation resistance (212 in Fig. 2), form the front half period of vibration, when the front half period, because the output of ic 555 is high-order, the output of the inverter (214 in Fig. 2) that it connects must be low level, so now inverter exports the encoding block second line end (105 in Fig. 2) that connects for low, and the second variation code (103 in Fig. 2) is also low.When voltage is charged to the threshold values of high threshold end, its output is low for becoming, internal discharge pipe ground connection simultaneously, duration of oscillation constant capacitance is discharged from internal discharge pipe over the ground by the second oscillation resistance, thus the later half cycle of vibration is formed, the output of ic 555 now changes low level into by a high position, therefore the first bit line output end that it connects also becomes low level, and the effect that the first variation code controls diode (215 in Fig. 2) makes the first variation code be suspended state, both access failure power supply also access failure ground wire, the output of inverter becomes a high position from low, the second line end connected also is uprised by low, second variation code controls diode (216 in Fig. 2) and works, voltage can not flow to positive pole by diode cathode, so the second variation code is also suspension.
2, the principle of two kinds of codes is sent: because 8 bit codes of coded set divide into two groups, wherein 6 bit codes have become one group of fixed code, and another two bit code lines become variation code, so when first time launches, what send is one group of fixed code becoming of 6 bit codes and two the first subcategory numbers changing code, otherwise what ought send for the second time is the code that one group of fixed code of 6 bit codes one-tenth is different from the second time that two change code.
3, form sequential effect and principle: the meaning of sequential is, after power supply is opened, the output of ic 555 is 1, the output of inverter is 0, a coded signal of the first variation code is 1, a coded signal of the second variation code is 0, and after starting vibration, the output of ic 555 becomes 0 from 1, the output of inverter becomes 1 from 0, circulation like this, variation code is and then circulation also, because control the relation of diode, play buffer action, the quadratic code signal of the first variation code is caused to become suspension from 1, the quadratic code signal of the second variation code becomes suspension from 0, the utility model has carried out 2 innovations:
One is the innovation to differential line, connects general differential circuit, is all employing differential capacitance, one is differential resistance, and with such circuit, deposits shortcoming both ways, one is that differential speed reaches requirement, and two is can not realize good isolation with the circuit of differential.Invention increases diac (303 in Fig. 2), discharge diode (304 in Fig. 2) for this reason, and add discharge resistance (301 in Fig. 2) and tightly coordinate with it, therefore solve the problems referred to above well.
Two is in the design breaching custom integrated circuit 555 oscillating circuit, design routinely, and its low valve end is connected by isolation resistance with high threshold end, if processed like this, cannot add codifferential, because become contradiction with the low valve end of triggering.Invention has been innovation for this reason, between the low valve end of triggering and high threshold end, add isolation resistance (in Fig. 2 211).Namely meet the object of differential, meet again logic and meet the requirements.
4, can form the innovation becoming code: by a kind of simple interface conversion, be difficult to be competent at if do not innovated, two variation codes all have employed control diode, control diode and play buffer action.
What 5, send is the reason of transient signal at every turn: because vibration is adjustable can recall the required time on request, and namely this time can receive reliably, has transient state again.
6, when twice signal is launched, the reason of encoding block bit line only corresponding wherein unique bit line: can find out in the structure of this measure, in change code character, when the change code sent for the first time, in four bit lines of encoding block, only a corresponding bit line is wherein high-order, remaining bit line is low level, otherwise when launching second time coded signal, only have a corresponding bit line for high-order, remaining bit line is low level.As found out in fig. 2, when first time transmitter code in encoding block, ic 555 output is high-order, and this thus connected bit line is that a high position works, and this bit line that inverter connects to be low level do not act on.Otherwise when second time signal, and exports the bit line that is connected because of low level with ic 555, therefore inoperative.And inverter exports as high-order, the flexure curve connected, for high-order, works.
After implementing or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
The effect of 1, launching due to the encoding block of existing product is, Received signal strength part only exists the one constraint of coded signal, so density is low.And the present signal that have issued by five kinds of constraints, so improve level of confidentiality widely.From certain meaning, this level of confidentiality is higher than rolling code class, its reason is, the hot reason of rolling code is because the state information of code is large, and is variation, so it is minimum to crack probability, and result of the invention process, crack the single factors of not only moving and relating to coded signal, and move back and relate to other multiple factors, so this probability is just more difficult.There is 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, produce easily, one be need not be valuable equipment and instrument, two is that technology is simple, and three is that circuit is simplified, and component requirements used is low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
If this measure is made integrated circuit by 5, the simpler mode of production will be had.Be particularly suitable for popularizing.
6, crack the strong research of ability and provide one for providing atypical anti-and open one's minds and direction.
Accompanying drawing explanation
Fig. 1 is the block diagram of circuit theory.
In figure: 1, encoding block; 2, automatic changing code circuit; 3, start-up circuit; 101, the fixed code that connects of encoding block; 102, the first variation code of encoding block; 103, the second variation code of encoding block; 104, the first bit line output of encoding block; 105, the second bit line of encoding block exports; 106, the output of encoding block; 401, modulated resistance; 402, triode is modulated; 403, modulation circuit.
Fig. 2 is the concrete line map of automatic changing code radiating portion.
In figure: 1, encoding block; 101, the fixed code that connects of encoding block; 102, the first variation code of encoding block; 103, the second variation code of encoding block; 104, the first bit line output of encoding block; 105, the second bit line of encoding block exports; 106, the output of encoding block; 201, ic 555; 202, the low valve end of ic 555; 203, the output of ic 555; 206, the high threshold end of ic 555; 207, the discharge end of ic 555; 208, ic 555 is line end; 210, the first oscillation resistance; 211, the second isolation resistance; 212, the second oscillation resistance; 213, duration of oscillation constant capacitance; 214, inverter; 215, the control diode of the first variation code; 216, the control diode of the second variation code; 301, discharge resistance; 302, differential capacitance; 303, diac; 304, discharge diode; 401, modulated resistance; 402, triode is modulated; 403, modulation circuit; 501, battery supply; 502, control switch.
Embodiment
Fig. 1, Fig. 2, jointly describe the concrete a kind of mode implemented.
One, select element: wherein encoding block selects 2262, the integrated circuit in automatic changing code circuit selects ic 555, and inverter adopts 4069, and its radio frequency unit adopts adjusts sense, capacity transfer or crystal oscillator.
Two, by figure welding: weld by shown in Fig. 2.
Three, debugging and inspection:
(1), duration of oscillation is adjusted: the output being connected on ic 555 with oscillographic red bar pen, black meter pen ground connection.
Adjust the size of the first oscillation resistance (210 in Fig. 2) or duration of oscillation constant capacitance (213 in Fig. 2), observe oscillatory condition, make it frequency and meet the requirements.If frequency is too fast add bulky capacitor or resistance value, otherwise reduces its value.
(2), change code timing is checked, and the correctness changed: the subcategory number being the first variation code is 1, and quadratic code is for suspending, and a subcategory number of the second variation code is 0, and quadratic code is suspension.
The first variation code is connect, black meter pen ground connection, the observable when frequency is very slow with oscillographic red test pencil, when energising just starts, screen is expressed as 1, and phenomenon is that Y-axis cursor has high-order reaction, this cursor becomes " flower-shaped " afterwards, and (neither a bright line) is then expressed as suspension.Becoming again 1 afterwards, is in addition " flower-shaped " afterwards.
Connect the second variation code with oscillographic red test pencil, black meter pen ground connection, the observable when frequency is very slow, energising is when just starting, and screen cursor becomes 0 reactionless, is flower-shaped afterwards.Be again 0 afterwards, in addition become flower-shaped afterwards.
(3) uniqueness that encoding block exports is checked:
A, check the uniqueness of the first bit line output.
Connect the first bit line output of encoding block circuit with the red pen of universal instrument, black meter pen ground connection, the observable when frequency is very slow, when energising just starts, be shown as a high position, be shown as low level afterwards, and then be high-order.Survey other output with universal instrument, when becoming code output into time high-order, other end is low level simultaneously.If incorrect, may be that element weldering is wrong, or counter element be damaged.
The uniqueness of B, detection coding second line output terminal.
Connect encoding block second line output terminal with the red pen of universal instrument, black meter pen ground connection, the observable when frequency is very slow, when energising just starts, be shown as low level, be shown as a high position afterwards, and then be low level.Survey other output with universal instrument, when being high-order to rear class output, other end is low level simultaneously.
If incorrect, may be that element weldering is wrong, or counter element be damaged.
(4) the time-bounded of emission state is checked
Connect the first bit line output of encoding block circuit with the red pen of universal instrument, black meter pen ground connection, the observable when frequency is very slow, when energising just starts, be shown as a high position, be high-order when the shorter time, become low level afterwards.Use the same method the output checked to rear class, also should have same phenomenon.Belong to encoding block if not so to damage, or model is not right.
Claims (6)
1. a sequential type integrated change code radiating circuit, is characterized in that: by encoding block, automatic changing code circuit, start-up circuit, radio frequency unit, battery supply, and control switch forms jointly;
Battery supply connects one end of control switch, and the control switch other end becomes circuit power, and in the power end of encoding block, the power end of ic 555, start-up circuit, the positive pole of differential capacitance, is all connected on circuit power;
Encoding block has 8 bit code lines, four output bit-lines, 6 in 8 bit code lines connect as fixed code, the output of ic 555 in automatic changing code circuit is connect with a bit line in four output bit-lines after a bit code line in all the other two bit code lines connects the control diode of the first variation code, become the first variation code and the first bit line output, the output being connected inverter in automatic changing code circuit after another bit code line connects the control diode of the second variation code with another one bit line becomes the second variation code and second line output terminal;
Automatic changing code circuit is made up of jointly ic 555, peripheral element, inverter, two control diodes;
Peripheral element is made up of the first oscillation resistance, the second oscillation resistance, isolation resistance, duration of oscillation constant capacitance;
The output of ic 555 connects three tunnels, the first via connects the input of inverter, second tunnel connects the first bit line output of encoding block, 3rd tunnel connects the control diode cathode of the first variation code, the control diode cathode of the first variation code connects the first variation code, the output of inverter connects two-way, and the first via connects the second line output terminal of encoding block; Second tunnel connects the control diode cathode of the second variation code, and the control diode cathode of the second variation code connects the second variation end, a termination power of the first oscillation resistance, the discharge end of another termination ic 555; The end that second oscillation resistance is done is connected on the discharge end of ic 555, and the other end is connected on the low valve end of ic 555, and the low valve end of ic 555 has also connect the positive pole of duration of oscillation constant capacitance, the minus earth of duration of oscillation constant capacitance; One end of isolation resistance is connected to the high threshold end of ic 555, and the other end is connected on the low valve end of ic 555;
Start-up circuit is made up of differential capacitance, discharge resistance, discharge diode, diac: a termination circuit power supply of differential capacitance, discharge resistance is connected between circuit power and ground wire, another termination two-way of differential capacitance, the first via connects discharge diode to ground wire, second tunnel connects the positive pole of diac, and the negative pole of diac connects the high threshold end of ic 555;
Radio frequency unit is made up of modulation circuit and radio circuit: modulation circuit is made up of modulated resistance and modulation triode;
Receive the base stage of modulation triode after the output termination modulated resistance of encoding block, the grounded emitter line of modulation triode, the collector electrode of modulation triode connects radio circuit.
2. a kind of sequential type according to claim 1 integrated change code radiating circuit, is characterized in that: any two bit code lines of 8 bit codes of encoding block connect two respectively and control diode, and this two bit codes line is variation code.
3. a kind of sequential type according to claim 1 integrated change code radiating circuit, is characterized in that: be with integrated form made by the technical program.
4. a kind of sequential type according to claim 1 integrated change code radiating circuit, is characterized in that: control switch is key switch.
5. a kind of sequential type according to claim 1 integrated change code radiating circuit, is characterized in that: differential capacitance is electrodeless electric capacity.
6. one one kinds of sequential type integrated change code radiating circuits according to claim 1, is characterized in that: modulation triode is NPN triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420563985.4U CN204068944U (en) | 2014-09-28 | 2014-09-28 | A kind of sequential type integrated change code radiating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420563985.4U CN204068944U (en) | 2014-09-28 | 2014-09-28 | A kind of sequential type integrated change code radiating circuit |
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| Publication Number | Publication Date |
|---|---|
| CN204068944U true CN204068944U (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420563985.4U Expired - Fee Related CN204068944U (en) | 2014-09-28 | 2014-09-28 | A kind of sequential type integrated change code radiating circuit |
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| Country | Link |
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| CN (1) | CN204068944U (en) |
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2014
- 2014-09-28 CN CN201420563985.4U patent/CN204068944U/en not_active Expired - Fee Related
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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: 20141231 Termination date: 20160928 |