CN203422736U - Electronic access controller and implementation device for interaction between electronic access controller and general electronic equipment - Google Patents

Electronic access controller and implementation device for interaction between electronic access controller and general electronic equipment Download PDF

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Publication number
CN203422736U
CN203422736U CN201320441854.4U CN201320441854U CN203422736U CN 203422736 U CN203422736 U CN 203422736U CN 201320441854 U CN201320441854 U CN 201320441854U CN 203422736 U CN203422736 U CN 203422736U
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China
Prior art keywords
access controller
information
audio interface
electronic access
electronic device
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Expired - Fee Related
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CN201320441854.4U
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Chinese (zh)
Inventor
聂宏
聂琨琨
Original Assignee
陈志璋
杨群峰
聂宏
李须真
吴涛
聂琨琨
许志猛
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Priority to CN201320441854.4U priority Critical patent/CN203422736U/en
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Abstract

The utility model relates to an electronic access controller and an implementation device for interaction between the electronic access controller and general electronic equipment. The electronic access controller comprises an audio plug, an information detector, an energy collector, an encryption engine and an information modulator. The audio plug is used for being inserted into an audio interface of the general electronic equipment. The information detector is used for detecting information sent by the audio interface. The energy collector is used for converting a signal output by the audio interface into a direct current voltage which is used as a working power supply of the electronic access controller. The encryption engine is used for receiving the information detected by the information detector for encryption and generating an access control certificate. The information modulator modulates the access control certificate and then sends the modulated access control certificate to the general electronic equipment through the audio interface. Since all types of general electronic equipment are respectively provided with at least one audio interface, the electronic access controller can be combined with most general electronic equipment for use, and a new solution is provided for reducing the cost and size of the electronic access controller and enhancing the performance and safety of the electronic access controller.

Description

A kind of electronic access controller and with the mutual implement device of universal electronic device
Technical field
The utility model relates to power taking, the communication technical field based on audio port, particularly a kind of electronic access controller and with the mutual implement device of universal electronic device.
Background technology
Development along with hyundai electronics and infotech, electronic access controller is widely used in " physics " access control, as the access control to building and some place, and " logic " or " numeral " access control, as served by the long-range acquisition of computer network.
Generally, a remote access controller comprises following functional module:
Crypto engine: this engine contains the identifying information setting in advance, comprise an identifier setting in advance and encryption key, use relevant identification and authentication protocol, as one-time password (otp), challenge response or other bidirectional identification protocols generate access control certificate.
Communication module: by wired or wireless link, this module receives and produces the required external information of access control certificate and send the access control certificate being generated by crypto engine.
Human-machine interface module: this module comprises that display screen is to show the access control certificate being generated by crypto engine, buttons/keys dish or other human interface devices of input manual command.
Clock and timing module: when adopting time-based authentication protocol (as time-based disposal password agreement), this module provides accurate clock and clocking information to generate access control certificate for crypto engine.
Supply module: this module provides power supply for electronic access controller, and keeps clock and the continual work of timing module.
In order to realize above-mentioned functions module, independently electronic access controller conventionally there is higher system cost and volume larger.Higher system cost and larger volume have seriously restricted the widespread use of free-standing electronics access controller.And on the other hand, universal electronic device, as more and more universal in our daily life in desk-top computer, notebook computer, panel computer (PAD) and smart mobile phone, these universal electronic devices all have powerful wired and/or radio communication function, hommization operation interface easily, accurate clock and timekeeping system and powerful power supply capacity.Therefore, in conjunction with universal electronic device, realize complexity that electronic access controller is remarkable reduction system and cost and the volume of electronic access controller opened up new direction.
The development of the electronic access controller based on software is a successful case utilizing universal electronic device exploitation electronic access controller.Electronic access controller based on software is realized all functional modules by the application program that can move on universal electronic device.User only need these application programs of installation and operation can use the electronic access controller based on software on universal electronic device.The major advantage of the electronic access controller based on software is there is no hardware cost.And the major defect of electronic access control device based on software is that level of security is lower: because crypto engine is also to be realized by application program, predefined identifying information, comprises that the identifier and the encryption key that set in advance have to be stored on the readable memory of universal electronic device.Therefore, if the identifying information that universal electronic device, by assault, sets in advance may be stolen, thereby may there is the access control certificate forged.
In order to guarantee the level of security of electronic access controller and to reduce its cost and volume, the another kind of scheme that realizes electronic access controller on universal electronic device is set up independently hardware cryptographic engine and other functional module is realized as much as possible on universal electronic device.Consequently, the identifying information setting in advance is stored in the ROM (read-only memory) in separate hardware, even if also can not revealed during by assault at universal electronic device.Meanwhile, because other functional modules of major part of electronic access control device all realize on universal electronic device, its complexity, cost and volume will significantly reduce.Yubico company (www.yubico.com) has released YubiKey Standard and two kinds of electronic access controllers of YubiKey NEO based on this system scheme.These two kinds of devices all adopt independently hardware cryptographic engine, and the identifying information setting in advance is stored in independently in ROM (read-only memory) hardware.By being connected to USB (universal serial bus) (USB) interface of universal electronic device, YubiKey Standard obtains the message exchange of electric energy realization and universal electronic device by USB interface.YubiKey NEO obtains the message exchange of electric energy realization and universal electronic device by USB interface or near-field communication (NFC).
Yet, only have sub-fraction universal electronic device to there is NFC function.Meanwhile, USB interface also has multiple connection type: desk-top computer and notebook computer use the USB connector of standard conventionally; Panel computer and smart mobile phone are mainly used micro USB connector.More complicated is iPad and iPhone do not used USB interface but used special-purpose power supply and data-interface.Therefore, YubiKey Standard can only be used on desk-top computer and notebook computer, and YubiKey NEO has only expanded to the range of application of YubiKey Standard in some high-end smartphones.In sum, there is no ready-made product or solution can provide electric energy and data communication interface to make it can be applied to most of universal electronic devices for electronic access control device.
All universal electronic devices all at least have an audio interface (socket), conventionally can be for two-way audio signal communication is provided between universal electronic device and external unit.Mobile phone socket/the jack of 3.5 millimeters of take is example, and as shown in Figure 1, audio frequency interface has four connectors: 1 is left headset connector (core end), and 2 is right earphone connector (ring), and 3 is common port/ground (ring), and 4 is Mike connector (sleeve).Our invention is that the audio interface by universal electronic device gathers electric energy and powers for electronic access control device, and realizes the message exchange between electronic access control device and universal electronic device by audio interface.
Summary of the invention
The purpose of this utility model is to provide a kind of electronic access controller, can rely on the realization of universal electronic device audio interface and combine use with universal electronic device.
The utility model adopts following scheme to realize: a kind of electronic access controller, is characterized in that comprising:
One audio jack is in order to insert the audio interface of a universal electronic device;
One information detector, the information of sending in order to detect described audio interface;
One energy collecting device, in order to convert the signal of described audio interface output to DC voltage as the working power of this electronic access controller;
One crypto engine, the information that receives described information detector detection is encrypted generation access control certificate; And
One information modulator, modulates described access control certificate by described audio interface and sends to described universal electronic device.
Another object of the present utility model is to provide a kind of electronic access controller and the mutual implement device of universal electronic device, it is characterized in that comprising: provide above-mentioned electronic access controller, the first headset connector by described audio interface is converted to the time varying signal of universal electronic device generation the power supply of described electronic access controller, described information detector detects by the second headset connector of described audio interface the information that universal electronic device sends, and the headset connector by described audio interface after modulation sends to described universal electronic device.
An object more of the present utility model is to provide a kind of electronic access controller and the mutual implement device of universal electronic device, it is characterized in that comprising: provide above-mentioned electronic access controller, described universal electronic device utilizes constant envelope modulation to modulate the information that sends to described electronic access controller through described audio interface the first headset connector and the second headset connector, and it is described electronic access controller power supply that described energy collecting device extracts electric energy from described information; Described information detector detects described information, and the headset connector by described audio interface after modulation sends to described universal electronic device.
Preferably, the first described headset connector and the second headset connector are electrical connected.
An object more of the present utility model is to provide a kind of electronic access controller and the mutual implement device of universal electronic device, it is characterized in that comprising: above-mentioned electronic access controller is provided, and described universal electronic device utilizes constant envelope modulation to modulate the information that sends to described electronic access controller through the headset connector of described audio interface; Described audio interface only has a headset connector; It is described electronic access controller power supply that described energy collecting device extracts electric energy from described information; Described information detector detects described information, and the headset connector by described audio interface after modulation sends to described universal electronic device.
The beneficial effects of the utility model are: provide one to utilize audio interface as the method and apparatus of the power supply between electronic access controller and universal electronic device and data communication interface.Due to all universal electronic devices, as desk-top computer, notebook computer, panel computer (PAD) and smart mobile phone, all has an audio interface at least, this invention makes electronic access controller to combine use with most of universal electronic devices, thereby provides a kind of new solution reduce cost and the volume of electronic access controller and strengthen its performance and security.According to different audio interface type, the utility model has been developed the electronic access controller of Four types to adapt to different system applies demands.In order to allow those skilled in the art better understand the utility model, below in conjunction with drawings and Examples contrast invention, be described further.
Accompanying drawing explanation
Fig. 1 is conventional audio plug construction schematic diagram.
Fig. 2 is the connection diagram of the utility model embodiment mono-electronic access controller and universal electronic device.
Fig. 3 is the connection diagram of the utility model embodiment bis-electronic access controllers and universal electronic device.
Fig. 4 is the connection diagram of the utility model embodiment tri-electronic access controllers and universal electronic device.
Fig. 5 is the connection diagram of the utility model embodiment quadrielectron access controller and universal electronic device.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
The present embodiment provides a kind of electronic access controller, it is characterized in that comprising: an audio jack is in order to insert the audio interface of a universal electronic device; One information detector, the information of sending in order to detect described audio interface; One energy collecting device, in order to convert the signal of described audio interface output to DC voltage as the working power of this electronic access controller; One crypto engine, the information that receives described information detector detection is encrypted generation access control certificate; And an information modulator, described access control certificate is modulated by described audio interface and sent to described universal electronic device.The universal electronic device audio interface that can rely on this electronic access controller realizes combines use with universal electronic device.
Briefly, the utility model is used electronic access controller that power supply and data communication interface are provided for combining with universal electronic device.The utility model by the following method electronic access controller and universal electronic device mutual.
Concrete, shown in Figure 2, for the ease of difference, in the present embodiment, we are called I type electronic access controller by this electronic access controller, following examples are analogized, and this I type electronic access controller gathers electric energy from a headset connector of universal electronic device.More specifically, universal electronic device produces a time varying signal, as sinusoidal signal also sends to electronic access controller by headset connector (as the left headset connector in Fig. 2).By adopting conventional ac/dc conversion method, it is crypto engine, information detector and information modulator power supply that the energy collecting device in electronic access controller converts time varying signal to DC voltage.Simultaneously, the external information that crypto engine is required, as the challenge information in the clock in time-based disposal password agreement and timing information and challenge-response authentication agreement, by universal electronic device, modulated and pass through another headset connector (as the right earphone connector in Fig. 2) and send to electronic access controller.Information detector is responsible for detection information and is sent it to crypto engine.The access control certificate that crypto engine produces is modulated and is sent to universal electronic device by Mike connector by information modulation module.Traditional coding/decoding and modulating/demodulating technology, as Manchester Code/decode, the modulating/demodulating technology of amplitude shift keying (ASK), frequency shift keying (FSK) and phase-shift keying (PSK) (PSK), can be used to the information exchanging between modulation and detected electrons access controller and general electronic installation.
Consider above-mentioned I type electronic access controller only can be from an earphone collecting energy, possibly cannot from some universal electronic devices, collect enough electric energy.Refer to Fig. 3, at example II type electronic access controller, can while collecting energy and detection information from the left and right headset connector of universal electronic device.In order to realize this goal, the utility model is used constant envelope modulation scheme by universal electronic device, as frequency shift keying (FSK) and phase-shift keying (PSK) (PSK) modulation, modulates the information that is sent to II type electronic access controller.Because modulation signal has constant envelope, the energy collecting device in II type electronic access controller can gather electric energy from signal.Therefore, II type electronic access control device can gather electric energy when receiving signal from two headset connectors, and unlike I type equipment, from a headset connector, gather electric energy and from another headset connector reception information.Therefore, II type electronic access control device can double from the electric energy of audio interface collection.Adopt conventional ac/dc conversion method, energy collecting device can gather direct current energy from two headset connectors.Described in the present embodiment, through the first headset connector and the second headset connector, sending to the information of described electronic access controller is different information.
Because the energy collecting device of II type electronic access controller need to extract DC voltage from two-way time varying signal, than the energy collecting device of I type electronic access controller, there is more complicated circuit.In order to reduce system complexity and cost, the present embodiment has also proposed III type electronic access controller, can adopt the energy collecting device that I type electronic access controller is identical to gather electric energy from two earphone passages.In the utility model, universal electronic device is still used constant envelope modulation to modulate being transferred to the information of III type electronic access opertaing device.In addition, universal electronic device transmits identical signal in two headset connectors.Therefore, as shown in Figure 4, two headset connectors can be shorted to together to produce a signal with twice energy, thereby realized, use the energy collecting device of I type electronic access controller to gather electric energy from two headset connectors.Described in the present embodiment, through the first headset connector and the second headset connector, sending to the information of described electronic access controller is identical information.
In the audio interface of some universal electronic devices, may only have a headset connector.For the audio interface by such is connected to universal electronic device, refer to Fig. 5, the present embodiment IV type electronic access controller can gather electric energy and detection information from same headset connector simultaneously.More particularly, universal electronic device is used constant envelope modulation to modulate being transferred to the information of IV type electronic access control device.Therefore, adopt the identical energy collecting device of I type electronic access controller from earphone passage, to gather electric energy, and adopt the identical information detector of III type electronic access controller can detect the information being sent by universal electronic device.
In sum, the disclosed Method and circuits of the utility model has the following advantages:
1. by utilizing the audio interface of universal electronic device as the power supply between electronic access controller and universal electronic device and data communication interface, the utility model can be realized the electronic access controller for most of universal electronic devices.
2. for some universal electronic devices, a headset connector cannot provide enough electric energy for electronic access control device.The utility model make electronic access controller can from two headset connectors, gather electric energy and can be from identical headset connector reception information.
3. by allowing universal electronic device transmit identical modulation signal in two headset connectors and by its short circuit, the utility model can be so that external unit, comprise and be not limited only to electronic access control device, with a simple energy collecting device, obtaining higher electric energy.
4. for the audio interface of only having a headset connector, the utility model can be realized electronic access opertaing device and from same headset connector, gather electric energy simultaneously and detect the information that universal electronic device sends.
The foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims (5)

1. an electronic access controller, is characterized in that comprising:
One audio jack is in order to insert the audio interface of a universal electronic device;
One information detector, the information of sending in order to detect described audio interface;
One energy collecting device, in order to convert the signal of described audio interface output to DC voltage as the working power of this electronic access controller;
One crypto engine, the information that receives described information detector detection is encrypted generation access control certificate; And
One information modulator, modulates described access control certificate by described audio interface and sends to described universal electronic device.
2. the mutual implement device of an electronic access controller and universal electronic device, it is characterized in that comprising: provide electronic access controller as claimed in claim 1, the first headset connector by described audio interface is converted to the time varying signal of universal electronic device generation the power supply of described electronic access controller, described information detector detects by the second headset connector of described audio interface the information that universal electronic device sends, and the headset connector by described audio interface after modulation sends to described universal electronic device.
3. the mutual implement device of an electronic access controller and universal electronic device, it is characterized in that comprising: provide electronic access controller as claimed in claim 1, described universal electronic device utilizes constant envelope modulation to modulate the information that sends to described electronic access controller through described audio interface the first headset connector and the second headset connector, and it is described electronic access controller power supply that described energy collecting device extracts electric energy from described information; Described information detector detects described information, and the headset connector by described audio interface after modulation sends to described universal electronic device.
4. the mutual implement device of electronic access controller according to claim 3 and universal electronic device, is characterized in that: described the first headset connector and the second headset connector are electrical connected.
5. the mutual implement device of an electronic access controller and universal electronic device, it is characterized in that comprising: electronic access controller as claimed in claim 1 is provided, and described universal electronic device utilizes constant envelope modulation to modulate the information that sends to described electronic access controller through the headset connector of described audio interface; Described audio interface only has a headset connector; It is described electronic access controller power supply that described energy collecting device extracts electric energy from described information; Described information detector detects described information, and the headset connector by described audio interface after modulation sends to described universal electronic device.
CN201320441854.4U 2013-07-24 2013-07-24 Electronic access controller and implementation device for interaction between electronic access controller and general electronic equipment Expired - Fee Related CN203422736U (en)

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CN201320441854.4U CN203422736U (en) 2013-07-24 2013-07-24 Electronic access controller and implementation device for interaction between electronic access controller and general electronic equipment

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Application Number Priority Date Filing Date Title
CN201320441854.4U CN203422736U (en) 2013-07-24 2013-07-24 Electronic access controller and implementation device for interaction between electronic access controller and general electronic equipment

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103412735A (en) * 2013-07-24 2013-11-27 陈志璋 Electronic access controller and realizing method of interaction of electronic access controller and general electronic equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103412735A (en) * 2013-07-24 2013-11-27 陈志璋 Electronic access controller and realizing method of interaction of electronic access controller and general electronic equipment
CN103412735B (en) * 2013-07-24 2016-05-18 陈志璋 A kind of electronic access controller and with the mutual implementation method of universal electronic device

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140205

Termination date: 20200724

CF01 Termination of patent right due to non-payment of annual fee