CN211008031U - Passive electronic lock connecting wire based on password chip - Google Patents
Passive electronic lock connecting wire based on password chip Download PDFInfo
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- CN211008031U CN211008031U CN201921588349.6U CN201921588349U CN211008031U CN 211008031 U CN211008031 U CN 211008031U CN 201921588349 U CN201921588349 U CN 201921588349U CN 211008031 U CN211008031 U CN 211008031U
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Abstract
The utility model discloses a passive electronic lock connecting wire based on crypto chip, including mobile terminal interface, the line body, main control board and passive lock interface, mobile terminal interface and main control board are located the both sides of the line body respectively, the main control board includes crypto chip and POWERBUS power carrier supply circuit, mobile terminal interface and POWERBUS power carrier supply circuit all are connected with the crypto chip, POWERBUS bus connection passive lock interface is passed through to POWERBUS power carrier supply circuit's output. The utility model realizes the communication between the mobile terminal and the passive lock through the connecting line comprising the mobile terminal interface, the line body, the main control board and the passive lock interface, which is more convenient; data of the password chip is loaded to the POWERBUS through the POWERBUS power supply carrier power supply circuit, and therefore communication stability is improved. The utility model discloses but wide application in tool to lock field.
Description
Technical Field
The utility model belongs to the technical field of the tool to lock and specifically relates to a passive electronic lock connecting wire based on password chip.
Background
With the continuous development of the technology, the intelligent electronic lock gradually obtains the traditional mechanical lock to become the mainstream of the lock, and the electronic lock with rich shapes, colors and functions is continuously emerged. The passive electronic lock is a new important branch in the field of electronic locks, and is a lock which is intelligently controlled by a modern network communication technology without a power supply. The passive electronic lock does not need to be provided with a power supply, so that the operations of maintenance, replacement and the like of the power supply are omitted, the maintenance cost and the failure rate are reduced, the convenience is high, and the passive electronic lock is widely applied.
The current passive electronic lock mainly comprises an electronic key and a lock body arranged in a door and the like, wherein a control unit, a motor and a lock cylinder are arranged in the lock body, when the electronic key is inserted into the lock cylinder of the lock body, the lock body is powered by the electronic key, the electronic key and the lock body are subjected to information verification and password matching, and after the verification and the matching are successful, the control unit controls the motor to drive a lock tongue of the lock cylinder to move to unlock. This unlocking method, which is usually a separation of the power line for supplying power to the lock body and the data line for transmitting data (e.g., control signals) to the control unit, may result in unstable communication between the electronic key and the lock body; and the electronic key is easy to be forgotten or lost by the user, which may bring inconvenience to the user.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims to provide a: the passive electronic lock connecting wire based on the password chip is convenient and stable.
The utility model adopts the technical proposal that:
the utility model provides a passive electronic lock connecting wire based on crypto chip, includes mobile terminal interface, the line body, main control board and passive lock interface, mobile terminal interface and main control board are located the both sides of the line body respectively, the main control board includes crypto chip and POWERBUS power carrier supply circuit, mobile terminal interface and POWERBUS power carrier supply circuit all are connected with the crypto chip, POWERBUS bus connection passive lock interface is passed through to POWERBUS power carrier supply circuit's output.
Further, still include the shell, the main control board is located the inside of shell, passive lock interface is located the shell terminal surface outside.
Further, the mobile terminal interface comprises a first capacitor, a fuse, a 5V power output end and first to fourth pins, the first pin is connected with the 5V power output end through the fuse, one end of the first capacitor is connected with the 5V power output end, the second pin is connected with the negative data end of the password chip, the third pin is connected with the positive data end of the password chip, and the fourth pin and the other end of the first capacitor are both connected with a digital ground.
Further, the main control board further comprises a power conversion circuit, the power conversion circuit comprises a linear voltage stabilizer and a DC-DC converter, the input end of the linear voltage stabilizer and the input end of the DC-DC converter are both connected with a 5V power output end, the 3.3V output end of the linear voltage stabilizer is respectively connected with the input end of the POWERBUS power carrier power supply circuit and the power end of the password chip, and the 12V output end of the DC-DC converter is connected with the input end of the POWERBUS power carrier power supply circuit.
Further, the linear voltage regulator adopts an SC662K chip, and the DC-DC converter adopts a L M27313XMF chip.
Further, the code chip adopts an HSC32K1 chip.
Further, the POWERBUS power supply carrier power supply circuit is composed of a PB620 direct current carrier control chip and a peripheral circuit.
The utility model has the advantages that: the communication between the mobile terminal and the passive lock is realized through the connecting line comprising the mobile terminal interface, the line body, the main control board and the passive lock interface, an electronic key is not needed any more, and the mobile terminal and the passive lock are more convenient; the main control board comprises a password chip and a POWERBUS power supply carrier power supply circuit, data of the password chip can be loaded onto a POWERBUS through the POWERBUS power supply carrier power supply circuit, a control signal is modulated on a power supply line of the POWERBUS, an existing separated power line and a data line are replaced, and the communication stability is improved.
Drawings
Fig. 1 is a block diagram of a circuit structure of a passive electronic lock connecting wire based on a cryptographic chip;
fig. 2 is a schematic structural diagram of the passive electronic lock connecting wire based on the cryptographic chip of the present invention;
fig. 3 is a connection relationship diagram of the mobile terminal interface of the present invention;
fig. 4 is a schematic circuit diagram of the power conversion circuit of the present invention;
fig. 5 is a specific circuit schematic diagram of the cryptographic chip of the present invention;
fig. 6 is a pin diagram of the PB620 dc carrier control chip of the present invention;
fig. 7 is a schematic diagram of a signal conversion circuit between the PB620 dc carrier control chip and the passive lock interface of the present invention;
fig. 8 is a circuit connection diagram of the CONH pin of the PB620 dc carrier control chip of the present invention;
fig. 9 is a circuit connection diagram of pin CONM and pin CON L of the PB620 dc carrier control chip of the present invention.
Detailed Description
The invention will be further explained and explained with reference to the drawings and the embodiments in the following description.
Referring to fig. 1 and 2, the utility model relates to a passive electronic lock connecting wire based on crypto chip, including mobile terminal interface 1, the line body 2, main control board 3 and passive lock interface 4, mobile terminal interface 1 and main control board 3 are located the both sides of the line body 2 respectively, main control board 3 includes crypto chip and POWERBUS power carrier supply circuit, mobile terminal interface 1 and POWERBUS power carrier supply circuit all are connected with the crypto chip, POWERBUS bus 5 is passed through to POWERBUS power carrier supply circuit's output and is connected passive lock interface 4.
Specifically, the mobile terminal interface 1 is used for connecting a mobile terminal such as a mobile phone and a tablet computer. The mobile terminal interface 1 may be a common USB interface such as a TYPE-C interface. The wire body 2 is used for transmitting signals and can be realized by adopting common conductors such as copper and the like. The main control board 3 is used for realizing safe communication and loading the communicated data to the POWERBUS, so as to achieve the purpose of loading the signal of the interface of the mobile terminal to the power line. POWERBUS belongs to the low-voltage power supply bus technology, and replaces the traditional separated control cable and power supply cable by modulating a control signal on the power supply cable, thereby greatly improving the communication stability. POWERBUS adopts a mode of sending full-amplitude voltage and returning current signals, and provides high communication anti-interference capability.
The main control board 3 mainly comprises a password chip and a POWERBUS power supply carrier power supply circuit. And the password chip is used for realizing secure communication and can be realized by adopting the existing national secret encryption chip. The POWERBUS power supply carrier power supply circuit is used for loading data of the password chip to the POWERBUS bus through a POWERBUS power supply carrier technology, so that communication with the passive lock is achieved through the POWERBUS bus in a power supply carrier mode, and power is supplied to the passive lock. Different from the prior art that power is supplied and communication data transmission is performed through a separated power line and a separated data line, the present embodiment modulates a control signal on the power supply line of the POWERBUS by the POWERBUS power carrier technology, so as to replace the prior separated power line and data line, and greatly improve the stability of communication. The passive lock interface 4 is used for supplying power to the passive lock and communicating with the passive lock, so that the purpose of unlocking or locking is achieved.
Referring to fig. 2, further as a preferred embodiment, the lock further includes a housing 6, the main control board 3 is located inside the housing 6, and the passive lock interface 4 is located outside an end face of the housing 6. Specifically, the housing 6 is used to protect the main control board 3, and prolong the service life of the main control board 3. The housing 6 may be made of plastic or the like, and the shape thereof may be adapted to the shape of the main control board 3, for example, an annular boss or the like is used to cover the outer side of the main control board 3.
Referring to fig. 3, as a further preferred embodiment, the mobile terminal interface includes a first capacitor C15, a FUSE, a 5V power output terminal 5V, and first to fourth pins P1 to P4, the first pin P1 is further connected to the 5V power output terminal 5V through the FUSE, one end of the first capacitor C15 is connected to the 5V power output terminal 5V, the second pin P2 is connected to a negative data terminal USB0DM of the cryptographic chip, the third pin P3 is connected to a positive data terminal USB0DP of the cryptographic chip, and the other ends of the fourth pin P4 and the first capacitor C15 are both connected to a digital ground D.
Specifically, the first to fourth pins P1 to P4 are provided on the pad PA1 to facilitate connection with a cryptographic chip. The FUSE functions as overcurrent protection.
Referring to fig. 4, further as a preferred embodiment, the main control board further includes a power conversion circuit, the power conversion circuit includes a linear regulator U4 and a DC-DC converter U6, an input terminal of the linear regulator U4 and an input terminal of the DC-DC converter U6 are both connected to a 5V power output terminal 5V, a 3.3V output terminal 3.3V of the linear regulator U4 is respectively connected to an input terminal of the POWERBUS power carrier supply circuit and a power supply terminal of the cryptographic chip, and a 12V output terminal +12V of the DC-DC converter is connected to an input terminal of the POWERBUS power carrier supply circuit.
Specifically, the linear voltage regulator U4 is used to convert a 5V power supply provided by a mobile terminal or the like into a 3.3V power supply to supply power to the cryptographic chip and the POWERBUS power supply carrier power supply circuit. The DC-DC converter U6 is used to convert a 5V power supply provided by a mobile terminal or the like to a 12V power supply to power the POWERBUS power supply carrier supply circuit.
Further as a preferred embodiment, the linear regulator adopts an SC662K chip U4, and the DC-DC converter adopts a L M27313XMF chip U6.
Specifically, as shown in fig. 4, the linear regulator may be composed of an SC662K chip U4 and capacitors C6 and C5, and the DC-DC converter may be composed of a L M27313XMF chip U6, resistors R19, R25, R27, capacitors C12, C17, C22, an inductor L1, and a diode D1.
Referring to fig. 5, as a further preferred embodiment, the cryptographic chip employs a HSC32K1 chip U2.
Specifically, as shown in fig. 5, the cryptographic chip may be composed of a HSC32K1 chip U2 and peripheral circuits, where the peripheral circuits include a reset circuit composed of a resistor R20 and a capacitor C25, a crystal oscillator Y1, resistors R1 and R13, capacitors C9, C10, C19 and C20, and the like. The HSC32K1 chip of Beijing Hongsi technology Limited liability company is a low-power consumption, low-cost, high-security and multifunctional password security chip applied to scenes such as USB KEY and personal financial terminal, and the main functions of the chip comprise: the on-chip RSA and ECC (SM2) coprocessor is used for realizing digital signature and identity authentication; on-chip SM3, SHA hardware algorithm core, etc. Compared with the traditional software encryption mode, the HSC32K1 chip which is a national secret hardware encryption chip is adopted in the embodiment, and the method has the advantages of being fast in speed, safer (having physical protection and being capable of preventing cracking) and the like.
Referring to fig. 6, 7, 8 and 9, as a further preferred embodiment, the POWERBUS power supply circuit is composed of a PB620 dc carrier control chip U1 and peripheral circuits.
Specifically, the POWERBUS power supply carrier power supply circuit can be implemented by a PB620 direct current carrier control chip U1 shown in fig. 6, PB620 belongs to a control IC of the POWERBUS technology, PB620 can adapt to various wires used in the field and realize the function of remote communication, a cable thereof can be laid in any way of a bus type, a tree type or a star type, etc., which greatly facilitates construction wiring and can prevent misconnection, and simplify construction maintenance, PB620 can provide a power management function for the POWERBUS bus to realize power supply, communication and fault monitoring for the bus, PB620 direct current carrier control chip U1 is used for loading data of a cipher chip onto the power line of the POWERBUS bus, and fig. 7 to 9 are peripheral circuits of the PB620 direct current carrier control chip U1 (belonging to a basic application circuit of PB 620) which are used for performing a series of signal conversion after a signal formed after being loaded by U1 is connected to a passive lock interface J2 for communication and for supplying power to a lock, and for a lock supplying power, specifically, after being processed by a series of a dc voltage output by a dc link circuits of a dc link resistors 7, a resistor, a + 9, a resistor B, a resistor B, a + 9, a resistor, a + 9, a resistor, a + 9, a resistor, a 9.
The utility model discloses when using, at first pass through mobile terminal interface 1 with mobile terminal such as cell-phone and be connected with mobile terminal, and the mobile terminal interface passes through the line body 2 and is connected with the crypto chip of main control board, and POWERBUS power carrier supply circuit is with the data loading of crypto chip to this power cord of POWERBUS, and the lock body of passive lock passes through this power cord of POWERBUS with this connecting wire like this and realizes the communication and for the lock body power supply of passive lock.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.
Claims (7)
1. The utility model provides a passive electronic lock connecting wire based on crypto chip which characterized in that: the portable power supply device comprises a mobile terminal interface, a line body, a main control board and a passive lock interface, wherein the mobile terminal interface and the main control board are respectively positioned on two sides of the line body, the main control board comprises a password chip and a POWERBUS power supply carrier power supply circuit, the mobile terminal interface and the POWERBUS power supply carrier power supply circuit are both connected with the password chip, and the output end of the POWERBUS power supply carrier power supply circuit is connected with the passive lock interface through a POWERBUS.
2. The passive electronic lock connecting wire based on the password chip as claimed in claim 1, wherein: the passive lock is characterized by further comprising a shell, the main control board is located inside the shell, and the passive lock interface is located on the outer side of the end face of the shell.
3. The passive electronic lock connecting wire based on the password chip as claimed in claim 1, wherein: the mobile terminal interface comprises a first capacitor, a fuse, a 5V power output end and first to fourth pins, the first pin is connected with the 5V power output end through the fuse, one end of the first capacitor is connected with the 5V power output end, the second pin is connected with the negative data end of the password chip, the third pin is connected with the positive data end of the password chip, and the fourth pin and the other end of the first capacitor are connected with a digital ground.
4. The passive electronic lock connecting wire based on the password chip as claimed in claim 3, wherein: the main control board further comprises a power supply conversion circuit, the power supply conversion circuit comprises a linear voltage stabilizer and a DC-DC converter, the input end of the linear voltage stabilizer and the input end of the DC-DC converter are both connected with a 5V power supply output end, the 3.3V output end of the linear voltage stabilizer is respectively connected with the input end of the POWERBUS power supply carrier power supply circuit and the power end of the password chip, and the 12V output end of the DC-DC converter is connected with the input end of the POWERBUS power supply carrier power supply circuit.
5. The connection wire of claim 4, wherein the linear voltage regulator uses SC662K chip, and the DC-DC converter uses L M27313XMF chip.
6. The passive electronic lock connecting wire based on the password chip as claimed in claim 1, wherein: the password chip adopts an HSC32K1 chip.
7. A passive electronic lock connecting wire based on a cryptographic chip as in any of claims 1-6, characterized in that: the POWERBUS power supply carrier power supply circuit is composed of a PB620 direct current carrier control chip and a peripheral circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588349.6U CN211008031U (en) | 2019-09-23 | 2019-09-23 | Passive electronic lock connecting wire based on password chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921588349.6U CN211008031U (en) | 2019-09-23 | 2019-09-23 | Passive electronic lock connecting wire based on password chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008031U true CN211008031U (en) | 2020-07-14 |
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ID=71474906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921588349.6U Active CN211008031U (en) | 2019-09-23 | 2019-09-23 | Passive electronic lock connecting wire based on password chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211008031U (en) |
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2019
- 2019-09-23 CN CN201921588349.6U patent/CN211008031U/en active Active
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Address after: 510670 Room 401, C1 Building, 182 Science Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangdong Weide Information Technology Co.,Ltd. Address before: 510670 Room 401, C1 Building, 182 Science Avenue, Huangpu District, Guangzhou City, Guangdong Province Patentee before: GUANGDONG WEIDE INFORMATION TECHNOLOGY Co.,Ltd. |