CN111798604A - Card reader and access control system - Google Patents

Abstract

Translated fromChinese

一种读卡装置，用于对一门禁卡进行身份认证，其包括：一供电模块、一无线卷标读取器、一开关模块及一传感器。所述开关模块电性连接或断开连接所述供电模块与所述无线卷标读取器。所述传感器电性连接至所述开关模块，用于侦测所述门禁卡的磁场变化。所述读卡装置闲置时，所述开关模块处于打开状态，所述供电模块不向所述无线标签读取器供电；当所述传感器侦测到磁场变化时，输出一侦测讯号至所述开关模块以关闭所述开关模块，所述供电模块向所述无线卷标读取器供电。还提供一种包括所述读卡装置的门禁系统。

A card reader device is used to authenticate an access card, comprising: a power supply module, a wireless tag reader, a switch module and a sensor. The switch module electrically connects or disconnects the power supply module and the wireless tag reader. The sensor is electrically connected to the switch module and is used to detect changes in the magnetic field of the access card. When the card reader device is idle, the switch module is in an open state, and the power supply module does not supply power to the wireless tag reader; when the sensor detects changes in the magnetic field, it outputs a detection signal to the switch module to turn off the switch module, and the power supply module supplies power to the wireless tag reader. A door access control system including the card reader device is also provided.

Description

Translated fromChinese

读卡装置及门禁系统Card reader and access control system

技术领域technical field

本发明涉及一种节能的读卡装置及门禁系统。The invention relates to an energy-saving card reading device and an access control system.

背景技术Background technique

传统的门禁系统主要采用无线电射频识别技术，由读卡器发射、接收及解调门禁卡中的标识符，并通过读取的标识符判断所述门禁卡的合法性及有效性。然而，传统的门禁系统需要持续地对读卡器进行供电，才足以保证对门禁卡的实时感应识别，由于在大多数的空余时间也持续地供电，因此造成了很大程度上的电力消耗，成本较高，且不符合绿色环保的需要。The traditional access control system mainly uses radio frequency identification technology. The card reader transmits, receives and demodulates the identifier in the access control card, and judges the legitimacy and validity of the access control card through the read identifier. However, the traditional access control system needs to continuously supply power to the card reader, which is enough to ensure the real-time induction recognition of the access control card. Since the power supply is also continuously supplied in most of the spare time, it causes a large amount of power consumption. The cost is high, and it does not meet the needs of green environmental protection.

发明内容SUMMARY OF THE INVENTION

有鉴于此，有必要提供一种节能的读卡装置及门禁系统。In view of this, it is necessary to provide an energy-saving card reading device and an access control system.

一种读卡装置，用于对一门禁卡进行身份认证，其包括：A card reading device used for identity authentication of an access control card, comprising:

一供电模块；a power supply module;

一无线标签读取器；a wireless tag reader;

一开关模块，所述开关模块电性连接或断开连接所述供电模块与所述无线卷标读取器；及a switch module that electrically connects or disconnects the power supply module and the wireless tag reader; and

一传感器，电性连接至所述开关模块，用于侦测所述门禁卡的磁场变化；a sensor, electrically connected to the switch module, for detecting changes in the magnetic field of the access card;

所述读卡装置闲置时，所述开关模块处于打开状态，所述供电模块不向所述无线标签读取器供电；当所述传感器侦测到磁场变化时，输出一侦测讯号至所述开关模块以关闭所述开关模块，所述供电模块向所述无线卷标读取器When the card reader is idle, the switch module is in an open state, and the power supply module does not supply power to the wireless tag reader; when the sensor detects a change in the magnetic field, it outputs a detection signal to the wireless tag reader. a switch module to turn off the switch module, the power supply module supplies the wireless tag reader

一种门禁系统，其包括：所述的读卡装置，所述门禁系统还包括一门禁卡，所述门禁卡包括一磁性件，所述传感器侦测所述磁性件而侦测到所述磁场变化。An access control system, comprising: the card reading device, the access control system further comprising an access control card, the access control card comprising a magnetic piece, the sensor detects the magnetic piece and detects the magnetic field Variety.

所述读卡装置在闲置时，即所述传感器未侦测到磁场变化时，所述供电模块不供电，因此而有效地节约了电能。当所述门禁卡靠近所述读卡装置时，透过所述传感器侦测磁场变化以接通所述供电模块供电，使得所述读卡装置对门禁卡进行身份认证。因此，所述读卡装置暨可保障正常工作，也可有效地节约电能，降低了成本，符合绿色环保的需要。When the card reader device is idle, that is, when the sensor does not detect a change in the magnetic field, the power supply module does not supply power, thus effectively saving power. When the access control card is close to the card reading device, the sensor detects changes in the magnetic field to turn on the power supply of the power supply module, so that the card reading device authenticates the access control card. Therefore, the card reading device can ensure normal operation, and can also effectively save electric energy, reduce costs, and meet the needs of green environmental protection.

附图说明Description of drawings

图1为本发明的门禁系统的较佳实施例的功能模块示意图。FIG. 1 is a schematic diagram of functional modules of a preferred embodiment of the access control system of the present invention.

主要元件符号说明Description of main component symbols

门禁系统 1Access Control System 1

读卡装置 100Card Reader 100

供电模块 10Power supply module 10

开关模块 20switch module 20

RFID读取器 30RFID reader 30

天线模块 40Antenna Module 40

传感器 50Sensor 50

处理器 60Processor 60

门禁卡 200Access card 200

存储器 220Memory 220

驱动模块 240drivemodule 240

磁性件 260Magnetics 260

如下具体实施方式将结合上述附图进一步说明本发明。The following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

具体实施方式Detailed ways

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

需要说明的是，当一个组件被称为“电性连接”另一个组件，它可以直接在另一个组件上或者也可以存在居中的组件。当一个组件被认为是“电性连接”另一个组件，它可以是接触连接，例如，可以是导线连接的方式，也可以是非接触式连接，例如，可以是非接触式耦合的方式。It should be noted that when a component is said to be "electrically connected" to another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "electrically connected" to another component, it can be a contact connection, eg, a wire connection, or a contactless connection, eg, a contactless coupling.

除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

下面结合附图，对本发明的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and features in the embodiments may be combined with each other without conflict.

请参阅图1，本发明较佳示例实施方式提供一种门禁系统1，包括一读卡装置100及一门禁卡200。所述门禁卡200具有标识符。本实施例中，所述标识符为无线电射频识别(Radio Frequency Identification，RFID)技术的标识符。所述读卡装置100采用RFID技术藉由发射射频讯号、接收及解调所述门禁卡200中的标识符，并判断此门禁卡200的标识符的合法性及有效性。Referring to FIG. 1 , a preferred exemplary embodiment of the present invention provides an access control system 1 , including acard reading device 100 and anaccess control card 200 . Theaccess control card 200 has an identifier. In this embodiment, the identifier is an identifier of a radio frequency identification (Radio Frequency Identification, RFID) technology. Thecard reader device 100 uses RFID technology to transmit radio frequency signals, receive and demodulate the identifier in theaccess control card 200, and judge the validity and validity of the identifier of theaccess control card 200.

在至少一示例性的实施例中，所述门禁系统1可为应用于一通道口，所述读卡装置100可安装于所述通道口的门上或墙面上，所述门禁卡200由用户携带，所述读卡装置100用于判断所述门禁卡200的标识符的合法性及有效性，以决定是否开启通道口。In at least one exemplary embodiment, the access control system 1 can be applied to a passageway, thecard reading device 100 can be installed on a door or a wall of the passageway, and theaccess control card 200 is composed of It is carried by the user, and thecard reading device 100 is used to judge the validity and validity of the identifier of theaccess control card 200 to decide whether to open the access port.

在至少一示例性的实施例中，所述供电模块10透过所述开关模块20电性连接至所述RFID读取器30。所述RFID读取器30电性连接至所述天线模块40。当所述开关模块20闭合时，所述供电模块10透过所述开关模块20连通至所述RFID读取器30及所述天线模块40，以向所述读卡装置100供电。当所述开关模块20打开时，所述供电模块10与所述RFID读取器30及所述天线模块40断开连接，所述供电模块10停止向所述读卡装置100供电。在至少一示例性的实施例中，所述供电模块10可耦接一交流电源(图未示出)，以提供所述读卡装置100运作所需的电力需求。在另一示例性的实施例中，所述供电模块10装设电池或内建超级电容，以提供所述读卡装置100运作所需的电力需求。至少一示例性的实施例中，所述供电模块10可为任一形式的电源输出装置，以稳定地提供所述读卡装置100运作所需的电力需求。In at least one exemplary embodiment, thepower supply module 10 is electrically connected to theRFID reader 30 through theswitch module 20 . TheRFID reader 30 is electrically connected to theantenna module 40 . When theswitch module 20 is closed, thepower supply module 10 is connected to theRFID reader 30 and theantenna module 40 through theswitch module 20 to supply power to thecard reading device 100 . When theswitch module 20 is turned on, thepower supply module 10 is disconnected from theRFID reader 30 and theantenna module 40 , and thepower supply module 10 stops supplying power to thecard reading device 100 . In at least one exemplary embodiment, thepower supply module 10 can be coupled to an AC power source (not shown in the figure) to provide the power required for the operation of thecard reading device 100 . In another exemplary embodiment, thepower supply module 10 is equipped with a battery or a built-in super capacitor, so as to provide the power required for the operation of thecard reading device 100 . In at least one exemplary embodiment, thepower supply module 10 can be any form of power output device, so as to stably provide the power required for the operation of thecard reading device 100 .

在至少一示例性的实施例中，所述开关模块20可为一受控于逻辑电压的开关。当所述开关模块20在低电压保持打开状态；当所述开关模块20接收到一高电压时，切换为闭合状态。In at least one exemplary embodiment, theswitch module 20 may be a switch controlled by a logic voltage. When theswitch module 20 is kept in an open state at a low voltage; when theswitch module 20 receives a high voltage, it switches to a closed state.

在至少一示例性的实施例中，所述RFID读取器30接收到所述供电模块10的供电时，透过所述天线模块40发射射频讯号，以驱动所述门禁卡200发射所述标识符。所述RFID读取器30还透过所述天线模块40接收所述门禁卡200发射的所述标识符，并对所述标识符进行解调。可以理解，所述天线模块40具有一辐射范围，当所述门禁卡200进入所述辐射范围内时，所述天线模块40发射的射频讯号可传达所述门禁卡200，以及可接收到所述门禁卡200发射的所述标识符，也即在所述辐射范围内时，所述读卡装置100可与所述门禁卡200可建立无线通信连接。In at least one exemplary embodiment, when theRFID reader 30 receives power from thepower supply module 10, it transmits a radio frequency signal through theantenna module 40 to drive theaccess control card 200 to transmit the identification symbol. TheRFID reader 30 also receives the identifier transmitted by theaccess control card 200 through theantenna module 40, and demodulates the identifier. It can be understood that theantenna module 40 has a radiation range. When theaccess control card 200 enters the radiation range, the radio frequency signal emitted by theantenna module 40 can transmit theaccess control card 200 and receive theaccess control card 200. When the identifier transmitted by theaccess control card 200 is within the radiation range, thecard reading device 100 can establish a wireless communication connection with theaccess control card 200 .

在另一示例性的实施例中，所述RFID读取器30可为其他类型的无线标签读取器，所述无线标签读取器透过其他的通讯方式，例如WIFI、蓝牙(BLUETOOTH)等，来读取所述门禁卡200的所述标识符。In another exemplary embodiment, theRFID reader 30 can be other types of wireless tag readers, and the wireless tag reader can communicate through other communication methods, such as WIFI, BLUETOOTH, etc. , to read the identifier of theaccess control card 200 .

在至少一示例性的实施例中，所述传感器50用于侦测磁性物质(如：一磁性件)，并藉此传送一侦测讯号。在至少一示例性的实施例中，所述传感器50可以为但不限于为一霍尔传感器(HallSensor)，当一磁性物质靠近所述传感器50，所述传感器50侦测到一磁场的变化，即侦测到的磁通量增大，并藉此传送一侦测讯号。在此实施例中，所述侦测讯号为一逻辑高电压讯号。可以理解，所述传感器50具有一侦测范围，当所述磁性物质进入所述侦测范围内时，所述传感器50侦测到磁场的变化。In at least one exemplary embodiment, thesensor 50 is used to detect a magnetic substance (eg, a magnetic element), and thereby transmit a detection signal. In at least one exemplary embodiment, thesensor 50 can be, but is not limited to, a Hall sensor. When a magnetic substance approaches thesensor 50, thesensor 50 detects a change in the magnetic field, That is, the detected magnetic flux increases, and thereby a detection signal is sent. In this embodiment, the detection signal is a logic high voltage signal. It can be understood that thesensor 50 has a detection range, and when the magnetic substance enters the detection range, thesensor 50 detects the change of the magnetic field.

在至少一示例性的实施例中，所述传感器50分别电性连接至所述开关模块20及所述处理器60，并将所述侦测讯号分别传送至所述开关模块20及所述处理器60。In at least one exemplary embodiment, thesensor 50 is electrically connected to theswitch module 20 and theprocessor 60, respectively, and transmits the detection signal to theswitch module 20 and the processor, respectivelydevice 60.

在至少一示例性的实施例中，所述处理器60电性连接至所述RFID读取器30，用于判断所述RFID读取器30接收的标识符的合法性及有效性。所述读卡装置100可储存有默认值。在至少一示例性的实施例中，所述处理器60为微控制单元(Microcontroller Unit，MCU)，所述处理器60比对所述标识符与所述默认值，当两者匹配时，则判断所述标识符为合法的。可以理解，当所述处理器60判断所述标识符为合法时，即确认所述门禁卡200的身份，以进一步控制通道口的动作，如开启通道口的门。在至少一示例性的实施例中，所述处理器60具有一使能端(图未示)，当接收到一逻辑高电压时，所述处理器60被唤醒以进入工作状态。在所述处理器60的使能端未收到逻辑高电压时，可处于休眠状态。In at least one exemplary embodiment, theprocessor 60 is electrically connected to theRFID reader 30 for judging the validity and validity of the identifier received by theRFID reader 30 . Thecard reader 100 may store default values. In at least one exemplary embodiment, theprocessor 60 is a Microcontroller Unit (MCU), theprocessor 60 compares the identifier with the default value, and when the two match, then The identifier is judged to be valid. It can be understood that when theprocessor 60 determines that the identifier is valid, it confirms the identity of theaccess control card 200 to further control the action of the passage, such as opening the door of the passage. In at least one exemplary embodiment, theprocessor 60 has an enable terminal (not shown), and when a logic high voltage is received, theprocessor 60 is woken up to enter a working state. When the enable terminal of theprocessor 60 does not receive a logic high voltage, it can be in a sleep state.

所述门禁卡200包括一存储器220、一驱动模块240及一磁性件260。Theaccess control card 200 includes amemory 220 , adriving module 240 and amagnetic element 260 .

所述存储器220储存有所述标识符。在至少一示例性的实施例中，所述标识符是唯一的，标记着所述门禁卡的身份。Thememory 220 stores the identifier. In at least one exemplary embodiment, the identifier is unique and marks the identity of the access control card.

所述驱动模块240用于当接收到所述读卡装置100发射的射频讯号时被驱动，并发射所述标识符至所述读卡装置100。Thedriving module 240 is driven when receiving the radio frequency signal transmitted by thecard reading device 100 , and transmits the identifier to thecard reading device 100 .

所述磁性件260可内置于所述门禁卡200的壳体中。另外，也可露出于所述门禁卡200的壳体外。Themagnetic member 260 can be built in the casing of theaccess control card 200 . In addition, it can also be exposed outside the casing of theaccess control card 200 .

在至少一示例性的实施例中，当所述读卡装置100在静置时，所述开关模块20处于打开状态，所述供电模块10与所述RFID读取器30断开连接，而所述供电模块10不供电。因此，所述读卡装置100达到了节省电能的效果。In at least one exemplary embodiment, when thecard reading device 100 is at rest, theswitch module 20 is in an open state, thepower supply module 10 is disconnected from theRFID reader 30, and all Thepower supply module 10 does not supply power. Therefore, thecard reading device 100 achieves the effect of saving power.

在至少一示例性的实施例中，当用户使用所述门禁卡200进行身份验证时，所述门禁卡200靠近所述读卡装置100，所述门禁卡200的磁性件260进入所述读卡装置100的传感器50的侦测范围。所述传感器50侦测到磁场的变化(即磁通量增大)，并分别传送一侦测讯号至所述开关模块20及所述处理器60。本实施例中，所述侦测讯号为一逻辑高电压讯号。所述开关模块20接收到所述逻辑高电压讯号，切换为闭合状态，所述供电模块10透过所述开关模块20电性连接至所述RFID读取器30，以供电至所述RFID读取器30工作。所述RFID读取器30透过所述天线模块40发射射频讯号，所述门禁卡200的驱动模块240接收所述射频讯号并被驱动，并发射所述标识符至所述读卡装置100。所述RFID读取器30透过所述天线模块40接收所述门禁卡200发射的所述标识符，并对所述标识符进行解调后传送至所述处理器60。所述处理器60接收到所述逻辑高电压讯号后被唤醒以进入工作状态。所述处理器60比对所述标识符与所述默认值，以判断所述标识符的合法性，从而对所述门禁卡200进行身份认证。In at least one exemplary embodiment, when a user uses theaccess control card 200 for identity verification, theaccess control card 200 is close to thecard reading device 100, and themagnetic element 260 of theaccess control card 200 enters the card reading device The detection range of thesensor 50 of thedevice 100 . Thesensor 50 detects the change of the magnetic field (ie, the magnetic flux increases), and transmits a detection signal to theswitch module 20 and theprocessor 60 respectively. In this embodiment, the detection signal is a logic high voltage signal. Theswitch module 20 receives the logic high voltage signal and switches to a closed state. Thepower supply module 10 is electrically connected to theRFID reader 30 through theswitch module 20 to supply power to the RFID reader.Taker 30 works. TheRFID reader 30 transmits a radio frequency signal through theantenna module 40 , and thedriving module 240 of theaccess control card 200 receives the radio frequency signal and is driven, and transmits the identifier to thecard reading device 100 . TheRFID reader 30 receives the identifier transmitted by theaccess control card 200 through theantenna module 40 , demodulates the identifier and transmits it to theprocessor 60 . Theprocessor 60 is woken up to enter a working state after receiving the logic high voltage signal. Theprocessor 60 compares the identifier with the default value to judge the validity of the identifier, so as to perform identity authentication on theaccess control card 200 .

所述读卡装置100在闲置时，即所述传感器50未侦测到磁场变化时，所述供电模块10不供电，因此而有效地节约了电能。当所述门禁卡200靠近所述读卡装置100时，透过所述传感器50侦测磁场变化以接通所述供电模块10供电，使得所述读卡装置100对门禁卡200进行身份认证。因此，所述读卡装置100暨可保障正常工作，也可有效地节约电能，降低了成本，符合绿色环保的需要。When thecard reader 100 is idle, that is, when thesensor 50 does not detect a change in the magnetic field, thepower supply module 10 does not supply power, thus effectively saving power. When theaccess control card 200 is close to thecard reading device 100 , thesensor 50 detects changes in the magnetic field to turn on thepower supply module 10 , so that thecard reading device 100 authenticates theaccess control card 200 . Therefore, thecard reading device 100 can ensure normal operation, and can also effectively save electric energy, reduce costs, and meet the needs of green environmental protection.

以上实施方式仅用以说明本发明的技术方案而非限制，尽管参照以上较佳实施方式对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换都不应脱离本发明技术方案的精神和范围。本领域技术人员还可在本发明精神内做其它变化等用在本发明的设计，只要其不偏离本发明的技术效果均可。这些依据本发明精神所做的变化，都应包含在本发明所要求保护的范围之内。The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. Neither should depart from the spirit and scope of the technical solutions of the present invention. Those skilled in the art can also make other changes within the spirit of the present invention to be used in the design of the present invention, as long as they do not deviate from the technical effects of the present invention. These changes made according to the spirit of the present invention should all be included within the scope of the claimed protection of the present invention.

Claims (10)

1. The utility model provides a card reading device for carry out authentication to an entrance guard's card, its characterized in that: the card reading device comprises:

a power supply module;

a wireless tag reader;

the switch module is electrically connected or disconnected with the power supply module and the wireless volume label reader; and

the sensor is electrically connected to the switch module and used for detecting the magnetic field change of the access card;

when the card reading device is idle, the switch module is in an open state, and the power supply module does not supply power to the wireless tag reader; when the sensor detects the change of the magnetic field, a detection signal is output to the switch module to close the switch module, and the power supply module supplies power to the wireless volume label reader.

2. The card reading apparatus according to claim 1, wherein: when the switch module is opened, the power supply module is disconnected with the wireless volume label reader, and the power supply module does not supply power to the wireless label reader; when the switch module is closed, the power supply module is electrically connected with the wireless volume label reader, and the power supply module supplies power to the wireless volume label reader.

3. The card reading apparatus according to claim 2, wherein: the switch module is a switch controlled by logic voltage, and when the switch module is kept in an open state at low voltage; when the switch module receives a high voltage, the switch module is switched to a closed state.

4. A card reading apparatus according to claim 3, wherein: the card reading device further comprises an antenna module, the wireless volume label reader is electrically connected to the antenna module, and when the wireless volume label reader receives power supply of the power supply module, the wireless volume label reader transmits a radio frequency signal through the antenna module and receives an identifier of the entrance guard card through the antenna module.

5. The card reading apparatus according to claim 4, wherein: the sensor is used for detecting magnetic substances, when a magnetic substance approaches the sensor, the sensor detects the increase of magnetic flux and transmits the detection signal, and the detection signal is a logic high voltage signal.

6. The card reading apparatus according to claim 5, wherein: the sensor is a Hall sensor.

7. The card reading apparatus of claim 6, wherein: the card reading device further comprises a processor, the processor is electrically connected to the wireless tag reader and the sensor respectively, and the processor judges the legality of the identifier received by the wireless tag reader.

8. The card reading apparatus of claim 7, wherein: the processor is awakened to enter a working state when receiving the detection signal, the card reading device stores a default value, the processor compares the identifier with the default value, and when the identifier is matched with the default value, the identifier is judged to be legal so as to authenticate the identity of the access control card.

9. The card reading apparatus according to claim 4, wherein: the wireless tag reader is a Radio Frequency Identification (RFID) reader, and the wireless tag reader reads the identifier of the access card through a radio frequency identification technology.

10. An access control system, comprising: the access control system comprises the card reading device according to any one of claims 1 to 9, and further comprises an access control card, wherein the access control card comprises a magnetic member, and the sensor detects the magnetic member and the magnetic field change.

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