CN113841929A - Circuit and method capable of realizing single-line authentication of master and slave components of electronic cigarette - Google Patents
Circuit and method capable of realizing single-line authentication of master and slave components of electronic cigarette Download PDFInfo
- Publication number
- CN113841929A CN113841929A CN202111197294.8A CN202111197294A CN113841929A CN 113841929 A CN113841929 A CN 113841929A CN 202111197294 A CN202111197294 A CN 202111197294A CN 113841929 A CN113841929 A CN 113841929A
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- Prior art keywords
- circuit
- authentication
- slave
- master
- switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000003571 electronic cigarette Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 13
- 230000007175 bidirectional communication Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims abstract description 4
- 230000006854 communication Effects 0.000 claims description 15
- 210000001503 joint Anatomy 0.000 claims 2
- 230000003993 interaction Effects 0.000 claims 1
- 241000208125 Nicotiana Species 0.000 description 2
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a circuit and a method for realizing single-line authentication of a master component and a slave component of an electronic cigarette, wherein the master component and the slave component are butted through respective contacts 103, 104, 203 and 204; the contact 104 is connected with the negative electrode of the lithium battery 101 and the power ground of the main control circuit 100, the contact 103 is connected with the bidirectional communication port D of the main control circuit 100, the contact 103 is simultaneously connected with one end of a switch 102, the other end of the switch 102 is connected with the positive electrode of the lithium battery 101 and the positive electrode of the power supply of the main control circuit 100, and the grid of the switch 102 is connected with the output end K1 of the main control circuit 100; the contact 204 is respectively connected with a power supply end on one side of the authentication circuit 200 and one end of the heating wire 202, the other end of the heating wire 202 is connected with one end of a switch 201, the other end of the switch 201 is simultaneously connected with a power supply end on the other side of the authentication circuit 200 and the contact 203, the grid of the switch 201 is connected with an output end K2 of the authentication circuit 200, and the authentication circuit 200 is externally connected with a filter capacitor 205.
Description
Technical Field
The invention relates to the field of single-line authentication circuits, in particular to a circuit and a method for realizing single-line authentication of a master component and a slave component of an electronic cigarette.
Background
Most of the conventional electronic cigarettes do not authenticate the master and slave components, and the circuit of the slave component is only a heating wire which is connected with the master component through two contacts, as shown in fig. 2. When the lithium battery heating device works, when the main control circuit of the main component senses the smoking action, the PWM signal is output to control the switch, so that the lithium battery supplies power and heats the heating wire, and the average time of the conduction of the PWM signal control switch is used for adjusting the temperature.
Along with the continuous popularization of electronic cigarettes, tobacco tar varieties with different tastes appear, and the requirements on the atomization temperature are different. For this case, the master part needs to distinguish the kind of the tobacco tar on the slave part so as to perform precise control with the temperature corresponding to the master part. Therefore, authentication of the master and slave parts becomes inevitable.
From the technical realization, if a three-contact two-wire communication scheme is adopted, the master and slave authentication can be easily realized, but the two-contact two-wire communication scheme is incompatible with the two-contact docking mode of the traditional electronic cigarette. Moreover, for the electronic cigarette, the cost is increased by adding the contact points, and the space structure needs to be changed greatly. Therefore, it is preferable to maintain the connection between the master and slave contacts and adopt the authentication method of single-wire communication.
There are various methods for implementing single-wire communication, for example, CN113438065A discloses a single-wire communication circuit capable of supporting forward and backward connections and its application, and in practical applications, other suitable single-wire communication methods can be easily found. However, the single-wire communication authentication mode of the master and slave connection of the two contacts is adopted, when the authentication is realized on the electronic cigarette, the heating wire and the authentication circuit are required to be connected in parallel, and the authentication circuit can not influence the work of the heating wire after the authentication is finished. Because the resistance value of the heating wire is small, unless the lithium battery is directly powered, enough high voltage is difficult to form at two ends of the heating wire, and if the voltage is not enough, the authentication circuit connected in parallel to the heating wire is difficult to ensure to normally work. If adopt the direct power supply of lithium cell can obtain enough high voltage, the lithium cell anodal direct and the communication line of single-line communication link to each other this moment, and because its driving capability is too strong, can make the signal modulation of single-line communication realize hardly.
In order to effectively solve the problems, the invention discloses a circuit and a method for realizing single-line authentication of a master component and a slave component of an electronic cigarette.
Disclosure of Invention
The invention adopts the following technical scheme:
a circuit and method for realizing single-wire authentication of master and slave components of an electronic cigarette are disclosed, wherein the master and slave components are butted through respective contacts 103, 104 and 203, 204; the contact 104 is connected with the negative electrode of the lithium battery 101 and the power ground of the main control circuit 100, the contact 103 is connected with the bidirectional communication port D of the main control circuit 100, the contact 103 is simultaneously connected with one end of a switch 102, the other end of the switch 102 is connected with the positive electrode of the lithium battery 101 and the positive electrode of the power supply of the main control circuit 100, and the grid of the switch 102 is connected with the output end K1 of the main control circuit 100; the contact 204 is respectively connected with a power supply end on one side of the authentication circuit 200 and one end of the heating wire 202, the other end of the heating wire 202 is connected with one end of a switch 201, the other end of the switch 201 is simultaneously connected with a power supply end on the other side of the authentication circuit 200 and the contact 203, the grid of the switch 201 is connected with an output end K2 of the authentication circuit 200, and the authentication circuit 200 is externally connected with a filter capacitor 205.
Preferably, the switches 102 and 201 in the master and slave components are both PMOS transistors.
Preferably, the main control circuit 100 adopts an MCU.
The technical scheme has the following beneficial effects:
the electronic cigarette circuit is specially constructed for electronic cigarette application, namely on the basis of the traditional electronic cigarette circuit shown in figure 2, a switch is added to a branch where a heating wire at a slave component end is located, then the branch is connected with an authentication circuit in parallel, a single-wire communication branch is added to a master component end, and the like. Therefore, by combining a specific time sequence control mode, such as the sequence of switching on a main component switch, electrifying the authentication circuit to work, switching off a slave component switch, switching off the main component switch, authenticating a single wire of the master component and the slave component, switching on the slave component switch and the like, the problem of reliable power supply of the authentication circuit at the slave component end when the authentication circuit is connected with the low-impedance heating wire in parallel can be effectively solved, and the difficult problems of modulation of master and slave signals and the like under the strong driving of the positive pole of the connected lithium battery by adopting single wire communication can be solved.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a conventional electronic cigarette.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In operation, as shown in fig. 1, the master and slave components are mated via the respective contacts 103 and 203, 104 and 204, or 103 and 204, 104 and 203, respectively. When the master control circuit 100 is awakened by smoking, the output terminal K1 is pulled low to turn on the master component switch 102, so that the lithium battery 101 directly supplies power to the slave component circuit; at this time, the branch circuits of the authentication circuit 200 and the heating wire 202 on the components obtain high enough voltage, so that the filter capacitor 205 connected in parallel with the power supply inside the authentication circuit 200 is charged and stores energy; after the authentication circuit 200 is powered on to operate, the output terminal K2 outputs a high level to the gate of the switch 201, and the switch 201 is turned off; then, the output terminal K1 of the main control circuit is pulled high to turn off the main component switch 102, and at the same time, the bidirectional communication port D is communicated with the positive electrode side of the authentication circuit 200 through the data line, and the single-wire communication mode is started; after the master and slave components are in interactive communication and finish authentication, if the master and slave components are confirmed to be matched with each other, the authentication circuit 200 pulls the output end K2 low, so that the switch 201 switches on the branch of the heating wire 202, and if the master and slave components are not matched with each other, the branch is kept switched off; the main control circuit 100 selects a corresponding PWM signal for controlling the main unit switch 102 according to the authenticated variety information, thereby implementing corresponding temperature control.
The circuit and the method for realizing single-line authentication of the master component and the slave component of the electronic cigarette provided by the embodiment of the present invention are described in detail above, and a person skilled in the art may change the specific implementation and application scope according to the idea of the embodiment of the present invention.
Claims (6)
1. A circuit and method for realizing single-wire authentication of master and slave components of an electronic cigarette are disclosed, wherein the master and slave components are butted through respective contacts 103, 104 and 203, 204; the contact 104 is connected with the negative electrode of the lithium battery 101 and the power ground of the main control circuit 100, the contact 103 is connected with the bidirectional communication port D of the main control circuit 100, the contact 103 is simultaneously connected with one end of a switch 102, the other end of the switch 102 is connected with the positive electrode of the lithium battery 101 and the positive electrode of the power supply of the main control circuit 100, and the grid of the switch 102 is connected with the output end K1 of the main control circuit 100; the contact 204 is respectively connected with a power supply end on one side of the authentication circuit 200 and one end of the heating wire 202, the other end of the heating wire 202 is connected with one end of a switch 201, the other end of the switch 201 is simultaneously connected with a power supply end on the other side of the authentication circuit 200 and the contact 203, the grid of the switch 201 is connected with an output end K2 of the authentication circuit 200, and the authentication circuit 200 is externally connected with a filter capacitor 205.
2. The circuit and the method for realizing single-wire authentication of the master component and the slave component of the electronic cigarette according to claim 1 are characterized in that: the master component and the slave component are respectively provided with two butt joint ports and support any positive and negative butt joint of the slave end.
3. The circuit and the method for realizing single-wire authentication of the master component and the slave component of the electronic cigarette according to claim 1 are characterized in that: the main part and the auxiliary part are respectively provided with a switch, and the main part and the auxiliary part are simultaneously switched on to heat.
4. The circuit and the method for realizing single-wire authentication of the master component and the slave component of the electronic cigarette according to claim 1 are characterized in that: the master component and the slave component carry out information interaction and authentication through single-wire communication.
5. The circuit and the method for realizing single-wire authentication of the master component and the slave component of the electronic cigarette according to claim 1 are characterized in that: the master and slave authentication needs to be implemented in a specific order.
6. The circuit and the method for realizing single-wire authentication of the master component and the slave component of the electronic cigarette according to claim 1 are characterized in that: the switches in the master part and the slave part adopt PMOS tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197294.8A CN113841929A (en) | 2021-10-14 | 2021-10-14 | Circuit and method capable of realizing single-line authentication of master and slave components of electronic cigarette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111197294.8A CN113841929A (en) | 2021-10-14 | 2021-10-14 | Circuit and method capable of realizing single-line authentication of master and slave components of electronic cigarette |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113841929A true CN113841929A (en) | 2021-12-28 |
Family
ID=78978399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111197294.8A Pending CN113841929A (en) | 2021-10-14 | 2021-10-14 | Circuit and method capable of realizing single-line authentication of master and slave components of electronic cigarette |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113841929A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083171A (en) * | 2019-12-31 | 2020-04-28 | 深圳市沁园春科技有限公司 | Electronic atomizer communication and heating system and related products |
| CN111109657A (en) * | 2020-02-06 | 2020-05-08 | 广芯微电子（广州）股份有限公司 | Electronic cigarette and encryption and decryption authentication method thereof |
| CN112075667A (en) * | 2020-10-09 | 2020-12-15 | 西安稳先半导体科技有限责任公司 | Electronic cigarette, cigarette cartridge for electronic cigarette and safety circuit |
| CN112369703A (en) * | 2020-11-23 | 2021-02-19 | 武汉瑞纳捷电子技术有限公司 | Two-contact electronic cigarette and authentication method thereof |
| CN112656047A (en) * | 2021-01-27 | 2021-04-16 | 深圳市瑞之辰科技有限公司 | Electronic cigarette with encryption chip |
| US20210258043A1 (en) * | 2020-02-14 | 2021-08-19 | Microchip Technology Incorporated | Low cost power line modem |
-
2021
- 2021-10-14 CN CN202111197294.8A patent/CN113841929A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111083171A (en) * | 2019-12-31 | 2020-04-28 | 深圳市沁园春科技有限公司 | Electronic atomizer communication and heating system and related products |
| CN111109657A (en) * | 2020-02-06 | 2020-05-08 | 广芯微电子（广州）股份有限公司 | Electronic cigarette and encryption and decryption authentication method thereof |
| US20210258043A1 (en) * | 2020-02-14 | 2021-08-19 | Microchip Technology Incorporated | Low cost power line modem |
| CN112075667A (en) * | 2020-10-09 | 2020-12-15 | 西安稳先半导体科技有限责任公司 | Electronic cigarette, cigarette cartridge for electronic cigarette and safety circuit |
| CN112369703A (en) * | 2020-11-23 | 2021-02-19 | 武汉瑞纳捷电子技术有限公司 | Two-contact electronic cigarette and authentication method thereof |
| CN112656047A (en) * | 2021-01-27 | 2021-04-16 | 深圳市瑞之辰科技有限公司 | Electronic cigarette with encryption chip |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20211228 |