Access control server

Abstract

The utility model relates to the technical field of entrance guard control, in particular to an entrance guard control server, which comprises a central controller electrically connected with a barrier gate controller, an entrance and exit barrier gate card reader and a personnel entrance guard card reader. The barrier gate controller is electrically connected with a vehicle entrance and exit barrier gate and a personnel access control electromagnetic lock, and the personnel access control card reader comprises a card reading head circuit. According to the utility model, the circuit mechanism is simple, the manufacturing cost and the maintenance cost are greatly reduced, the reaction efficiency of the self-detection function is high, and the digital signals are decoded and processed through the internal processor and the interface so as to extract the information stored on the radio frequency card; therefore, the radio frequency card reading head circuit becomes a bridge for connecting the radio frequency card and a computer system, the phenomenon of smashing a vehicle is avoided, and the use convenience is improved.

Description

Technical Field

[0001] This utility model relates to a server, and more particularly to an access control server, belonging to the field of access control technology. Background Technology

[0002] Access control server, often simply called access control server, is the core component of access control system. It undertakes the critical task of managing and controlling access control system. Barrier gate, also known as vehicle barrier, is a channel access management device specifically used to restrict the movement of motor vehicles on roads. Barrier gates are widely used in places such as highway toll stations, parking lots, residential areas, and enterprise entrances to manage vehicle access and ensure traffic order and pedestrian safety.

[0003] However, existing access control servers are expensive to manufacture, complex in structure, require a lot of manpower to maintain, which increases maintenance costs. They also lack self-detection functions, resulting in low response efficiency. When they are damaged, they cannot provide timely feedback to users, leading to incidents such as cars being damaged. Therefore, they cannot meet the needs of users.

[0004] Therefore, it is urgent to improve the access control server to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide an access control server. The circuit structure is simple, which greatly reduces the manufacturing and maintenance costs. The self-testing function has high response efficiency. The internal processor and interface decode and process these digital signals to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system, preventing damage to vehicles and improving ease of use.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An access control server includes a central controller, which is electrically connected to a barrier gate controller, an entrance / exit barrier gate card reader, and a personnel access control card reader.

[0008] The barrier gate controller is electrically connected to a vehicle entrance / exit barrier gate and a personnel access control electromagnetic lock. The personnel access control card reader includes a card reader head circuit, which includes a chip U1. The chip U1 is electrically connected to an operational amplifier chip U2A through transistors Q1 and Q2. The operational amplifier chip U2A is electrically connected to a card reader head PT through an operational amplifier chip U2B. Resistors R14 and R15 are connected in parallel to pin 3 of the card reader head PT. A transistor Q3 is electrically connected to resistor R15. A buzzer LS1 is electrically connected to transistor Q3. The other end of the buzzer LS1 is electrically connected to resistor R14.

[0009] Preferably, the chip U1 is model 74HC4060. One end of the transistor Q1 and transistor Q2 connected in parallel is electrically connected to pin 4 of the chip U1. The other end of the transistor Q1 and transistor Q2 connected in parallel is electrically connected to an inductor L1. The inductor L1 is electrically connected to a diode VD1 through a resistor R4. The diode VD1 is electrically connected to the operational amplifier chip U2A through a capacitor C5.

[0010] Preferably, a resistor R4 and a capacitor C4 are connected in parallel on the inductor L1, and the resistor R4 is connected in series with the diode VD1;

[0011] A resistor R5 and a capacitor C6 are connected in parallel between the diode VD1 and the capacitor C5, and a capacitor C7 is connected in parallel with the capacitor C6.

[0012] Preferably, a resistor R8 and a capacitor C9 are electrically connected between the operational amplifier chip U2A and the operational amplifier chip U2B, and the resistor R8 is electrically connected to the operational amplifier chip U2B.

[0013] Preferably, the input terminal of the operational amplifier chip U2B is electrically connected to resistors R10, R11 and R12, and the input and output terminals of the operational amplifier chip U2B are electrically connected to resistor R13.

[0014] Preferably, capacitors C11 and C12 are connected in parallel on pin 1 of the card reader PT, and an electromagnetic switch S is electrically connected to pins 4 and 5 of the card reader PT;

[0015] Resistors R1 and R2 are connected in parallel on pins 10 and 11 of the chip U1, and capacitors C2 and C3 are connected in parallel on resistor R1.

[0016] Preferably, a license plate recognition device is electrically connected to the central controller, and a camera is electrically connected to the license plate recognition device.

[0017] Preferably, the gate controller is electrically connected to a supplementary light.

[0018] This utility model has at least the following beneficial effects:

[0019] 1. This circuit has a simple structure, which greatly reduces manufacturing and maintenance costs. The self-test function has high response efficiency. It decodes and processes these digital signals through the internal processor and interface to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system, preventing damage and improving ease of use.

[0020] 2. By connecting hardware devices such as gate controllers, entrance and exit gate card readers, and personnel access control card readers, access control access control and identity authentication can be achieved. The access control server can control the access control card readers to manage personnel entering and exiting the premises. When a user swipes a card or enters the correct password or other identity verification methods, the access control server will verify the user information and control the opening or closing of the access control equipment according to the user's permissions.

[0021] 3. The card reader circuit can receive and interpret signals returned from the RFID card. When the RFID card is activated, it sends a feedback signal containing the information stored on the card to the reader. After receiving the signal returned by the RFID card, the RFID card reader circuit converts it into a digital signal. Then, it decodes and processes these digital signals through the internal processor and interface to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 This is the electrical schematic diagram of this utility model;

[0024] Figure 2 This is the circuit diagram of this utility model.

[0025] In the diagram, 1 is the central controller; 2 is the barrier gate controller; 201 is the vehicle entrance / exit barrier gate; 202 is the personnel access control electromagnetic lock; 3 is the entrance / exit barrier gate card reader; 4 is the personnel access control card reader; 401 is the card reader head circuit; 5 is the license plate recognition device; and 6 is the supplementary light. Detailed Implementation

[0026] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0027] like Figures 1-2 As shown, the access control server provided in this embodiment includes a central controller 1. The central controller 1 is electrically connected to a barrier gate controller 2, an entrance / exit barrier gate card reader 3, and a personnel access control card reader 4. The access control server is a device used to manage and control the access control system. It is usually composed of a dedicated server and corresponding software. By connecting hardware devices such as the barrier gate controller 2, the entrance / exit barrier gate card reader 3, and the personnel access control card reader 4, it realizes access control and identity authentication of the access control channel. The access control server can control the access control card reader to manage the entry and exit of personnel. When a user swipes a card or enters the correct password or other identity authentication method, the access control server will verify the user information and control the opening or closing of the access control device according to the user's permissions.

[0028] The barrier gate controller 2 is electrically connected to the vehicle entrance / exit barrier gate 201 and the personnel access control electromagnetic lock 202. The personnel access control card reader 4 includes a card reader head circuit 401, which includes a chip U1. Chip U1 is electrically connected to an operational amplifier chip U2A through transistors Q1 and Q2. Operational amplifier chip U2A is electrically connected to a card reader head PT through operational amplifier chip U2B. Resistors R14 and R15 are connected in parallel to pin 3 of the card reader head PT. Transistor Q3 is electrically connected to resistor R15, and buzzer LS1 is electrically connected to transistor Q3. The other end of buzzer LS1 is electrically connected to resistor R14. The specific design of the card reader head circuit 401 varies depending on the type, function, and requirements of the access control system. It mainly consists of a signal detection circuit, a signal amplification circuit, a trigger blocking circuit, an output delay circuit, and a relay control circuit. Chip U1... The model number is 74HC4060. One end of the parallel connection of transistors Q1 and Q2 is electrically connected to pin 4 of chip U1. The other end of the parallel connection of transistors Q1 and Q2 is electrically connected to inductor L1. Inductor L1 is electrically connected to diode VD1 through resistor R4. Diode VD1 is electrically connected to operational amplifier chip U2A through capacitor C5. Operational amplifier chips U2A and U2B are used to amplify the weak electrical signal output by the sensor for subsequent circuit processing, improving the accuracy of signal processing. This circuit has a simple structure, significantly reducing manufacturing and maintenance costs. The self-test function has high response efficiency. Through the internal processor and interface, these digital signals are decoded and processed to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system, preventing damage and improving ease of use.

[0029] Furthermore, such as Figure 2 As shown, a resistor R4 and a capacitor C4 are connected in parallel with inductor L1. Resistor R4 is connected in series with diode VD1. A resistor R5 and a capacitor C6 are connected in parallel between diode VD1 and capacitor C5. A capacitor C7 is connected in parallel with capacitor C6. A resistor R8 and a capacitor C9 are electrically connected between operational amplifier chips U2A and U2B. Resistor R8 is electrically connected to operational amplifier chip U2B. Resistors R10, R11, and R12 are electrically connected to the input terminals of operational amplifier chip U2B. Resistor R13 is electrically connected to both the input and output terminals of operational amplifier chip U2B. Based on the amplified signal, it is determined whether to trigger the access control system. A certain delay time is provided before triggering the access control system to prevent false triggering. Card reading... Capacitors C11 and C12 are connected in parallel on pin 1 of the card reader PT. Electromagnetic switches S are electrically connected to pins 4 and 5 of the card reader PT. Resistors R1 and R2 are connected in parallel on pins 10 and 11 of the chip U1. Capacitors C2 and C3 are connected in parallel on resistor R1. The card reader circuit 401 can receive and interpret signals returned from the RFID card. When the RFID card is activated, it sends a feedback signal containing the information stored on the card to the reader. After receiving the signal returned by the RFID card, the RFID card reader circuit converts it into a digital signal. Then, it decodes and processes these digital signals through the internal processor and interface to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system.

[0030] Furthermore, such as Figure 1 As shown, the central controller is electrically connected to a license plate recognition device 5. The license plate recognition device 5 supports video devices based on Microsoft's DirectShow technology, as well as various mainstream video capture cards. It supports most WDM driver video capture cards currently on the market, 1394 and USB connected DV devices, and supports multiple cards in one device. It supports the recognition of bitmaps in memory; supports the recognition and storage of BMP, JPG, and other image formats; supports the recognition of AVI, MPG, WMV, and other video recording formats. It supports video detection, capture, and recognition, and has its own road segment checkpoint, red-light violation electronic police, and wrong-way driving detection functions. After capturing images of passing or illegal vehicles, it can automatically identify them. The license plate recognition device 5 is electrically connected to a camera, using an SCB-3000 color camera equipped with an explosion-proof cover. It has a wide dynamic range and can be used as a high-definition color camera under various special lighting conditions. The barrier gate controller 2 is electrically connected to a supplementary light 6, which provides sufficient illumination to improve practicality.

[0031] like Figures 1-2As shown, the principle of the access control server provided in this embodiment is as follows:

[0032] The barrier gate controller 2 is electrically connected to the vehicle entrance / exit barrier gate 201 and the personnel access control electromagnetic lock 202. The personnel access control card reader 4 includes a card reader head circuit 401, which includes a chip U1. Chip U1 is electrically connected to an operational amplifier chip U2A through transistors Q1 and Q2. Operational amplifier chip U2A is electrically connected to a card reader head PT through operational amplifier chip U2B. Resistors R14 and R15 are connected in parallel to pin 3 of the card reader head PT. Transistor Q3 is electrically connected to resistor R15, and buzzer LS1 is electrically connected to transistor Q3. The other end of buzzer LS1 is electrically connected to resistor R14. The specific design of the card reader head circuit 401 varies depending on the type, function, and requirements of the access control system. It mainly consists of a signal detection circuit, a signal amplification circuit, a trigger blocking circuit, an output delay circuit, and a relay control circuit. Chip U1... The model number is 74HC4060. One end of the parallel connection of transistors Q1 and Q2 is electrically connected to pin 4 of chip U1. The other end of the parallel connection of transistors Q1 and Q2 is electrically connected to inductor L1. Inductor L1 is electrically connected to diode VD1 through resistor R4. Diode VD1 is electrically connected to operational amplifier chip U2A through capacitor C5. Operational amplifier chips U2A and U2B are used to amplify the weak electrical signal output by the sensor for subsequent circuit processing, improving the accuracy of signal processing. This circuit has a simple structure, significantly reducing manufacturing and maintenance costs. The self-test function has high response efficiency. Through the internal processor and interface, these digital signals are decoded and processed to extract the information stored on the RFID card. This makes the RFID card reader circuit a bridge connecting the RFID card and the computer system, preventing damage and improving ease of use.

[0033] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0034] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An access control server, comprising a central controller (1), characterized in that, The central controller (1) is electrically connected to the barrier gate controller (2), the entrance and exit barrier gate card reader (3), and the personnel access control card reader (4). The barrier gate controller (2) is electrically connected to a vehicle entrance / exit barrier gate (201) and a personnel access control electromagnetic lock (202). The personnel access control card reader (4) includes a card reader head circuit (401). The card reader head circuit (401) includes a chip U1. The chip U1 is electrically connected to an operational amplifier chip U2A through transistors Q1 and Q2. The operational amplifier chip U2A is electrically connected to a card reader head PT through an operational amplifier chip U2B. Resistors R14 and R15 are connected in parallel on pin 3 of the card reader head PT. A transistor Q3 is electrically connected to resistor R15. A buzzer LS1 is electrically connected to transistor Q3. The other end of the buzzer LS1 is electrically connected to resistor R14.

2. The access control server according to claim 1, characterized in that: The chip U1 is model number 74HC4060. One end of the parallel connection of transistors Q1 and Q2 is electrically connected to pin 4 of the chip U1. The other end of the parallel connection of transistors Q1 and Q2 is electrically connected to inductor L1. Inductor L1 is electrically connected to diode VD1 through resistor R4. Diode VD1 is electrically connected to operational amplifier chip U2A through capacitor C5.

3. The access control server according to claim 2, characterized in that: A resistor R4 and a capacitor C4 are connected in parallel on the inductor L1, and the resistor R4 is connected in series with the diode VD1. A resistor R5 and a capacitor C6 are connected in parallel between the diode VD1 and the capacitor C5, and a capacitor C7 is connected in parallel with the capacitor C6.

4. The access control server according to claim 1, characterized in that: A resistor R8 and a capacitor C9 are electrically connected between the operational amplifier chip U2A and the operational amplifier chip U2B, with the resistor R8 being electrically connected to the operational amplifier chip U2B.

5. The access control server according to claim 1, characterized in that: The input terminal of the operational amplifier chip U2B is electrically connected to resistors R10, R11, and R12, and the input and output terminals of the operational amplifier chip U2B are electrically connected to resistor R13.

6. The access control server according to claim 1, characterized in that: Capacitors C11 and C12 are connected in parallel on pin 1 of the card reader PT, and an electromagnetic switch S is electrically connected to pins 4 and 5 of the card reader PT. Resistors R1 and R2 are connected in parallel on pins 10 and 11 of the chip U1, and capacitors C2 and C3 are connected in parallel on resistor R1.

7. The access control server according to claim 1, characterized in that: The central controller is electrically connected to a license plate recognition device (5), and the license plate recognition device (5) is electrically connected to a camera.

8. The access control server according to claim 1, characterized in that: The gate controller (2) is electrically connected to a supplementary light (6).

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