CN211956164U - Public entrance guard - Google Patents

Abstract

The utility model discloses a public entrance guard, including entrance guard's end, customer end and management service end, entrance guard's end includes the control unit, communication unit and steering wheel, the control unit includes microcontroller and a plurality of peripheral module, and peripheral module is connected to microcontroller respectively, and communication unit includes bluetooth communication module, bluetooth communication module is connected to the signal reception port of controller, customer end and management service end all are provided with bluetooth transceiver port, bluetooth communication module is connected to bluetooth transceiver port through wireless transmission. The utility model discloses increase bluetooth transceiver port at customer end and management service end, utilize bluetooth communication module with customer end, management service end and AND gate inhibition end wireless connection, make the customer end pass through bluetooth communication signal direct control entrance guard end switching, practiced thrift manpower, material resources, promoted work efficiency, avoided the complicacy and the inconvenience of traditional artifical charge completely, easy operation is swift, has promoted parking user's experience and has felt.

Description

Public entrance guard

Technical Field

The utility model relates to a set up the manufacturing field altogether, in particular to public entrance guard.

Background

Chinese economy develops rapidly, and the income dominated by everyone is greatly increased, so that the automobile consumption market in China is rapidly increased, and China becomes a big automobile country. The quantity of possession of private car increases suddenly, has brought bigger consumption for the parking area, and the parking area management mode commonly used generally adopts artifical charge and opens entrance guard, and manpower, financial resources are consumed to this kind of mode, and work efficiency is very low. In the manual charging process, a driver needs to arrive at a large charging window in advance, the driving window is in butt joint with the charging window, and the experience of a parking user is influenced due to the inconvenience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the problem that appears in the above-mentioned technique, provide a public entrance guard, this entrance guard can realize the parking charge automatically, has avoided traditional artifical charge to consume manpower, financial resources, and work efficiency hangs down the scheduling problem, fine promotion parking user's experience sense.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a public entrance guard, includes entrance guard's end, customer end and management service end, entrance guard's end includes the control unit, communication unit and steering wheel, the control unit includes microcontroller and a plurality of peripheral module, and peripheral module is connected to microcontroller respectively, and communication unit includes bluetooth communication module, bluetooth communication module is connected to the signal reception port of controller, customer end and management service end all are provided with bluetooth transceiver port, bluetooth communication module is connected to bluetooth transceiver port through wireless transmission.

Further, as a preferred technical scheme, the microcontroller is provided with a manual reset circuit, and a reset chip for monitoring low power consumption of the power supply is arranged in the reset circuit.

Further, as a preferred technical scheme, the peripheral module includes a power supply and anti-reverse connection circuit, an RTC clock circuit, a storage circuit and a program programming circuit, and the power supply and anti-reverse connection circuit, the RTC clock circuit, the storage circuit and the program programming circuit are respectively connected to corresponding ports of the microcontroller.

Further, as a preferred technical scheme, the power supply and reverse connection prevention circuit comprises a power supply circuit and a reverse connection prevention circuit.

Further, as a preferred technical solution, the RTC clock circuit includes a time management chip, and a serial interface of the time management chip is connected to the micro controller.

Further, as a preferred technical solution, the memory circuit includes a memory chip, the memory chip supports an SPI clock frequency of 104MHz, and the microcontroller reads and stores data using the SPI interface and the memory chip.

Further, as a preferred technical solution, the program programming circuit is a JTAG standard program programming circuit having 4 pins.

Further, as an optimal technical scheme, the microcontroller is further connected with a function module, the function module comprises a sound indicating circuit and a steering engine control circuit, the sound indicating circuit is connected with a buzzer, and the steering engine control circuit is connected to a steering engine.

The utility model discloses the beneficial effect who has:

the utility model discloses increase bluetooth transceiver port at customer end and management service end, utilize bluetooth communication module with customer end, management service end and AND gate inhibition end wireless connection, make the customer end pass through bluetooth communication signal direct control entrance guard end switching, practiced thrift manpower, material resources, promoted work efficiency, avoided the complicacy and the inconvenience of traditional artifical charge completely, easy operation is swift, has promoted parking user's experience and has felt.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a control unit of the present invention;

fig. 3 is a minimum system diagram of the microcontroller according to the present invention;

FIG. 4 is a circuit diagram of the power supply and reverse connection prevention circuit of the present invention;

fig. 5 is a circuit diagram of an RTC clock of the present invention;

fig. 6 is a memory circuit diagram of the present invention;

FIG. 7 is a JTAG circuit diagram of the present invention;

FIG. 8 is a control diagram of the steering engine circuit of the present invention;

in the figure: the system comprises a client, a management server, a 3-steering engine, a 4-Bluetooth communication module and a 5-control unit.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

Examples

The public access control system comprises an access control end, a client and a management service end, wherein the access control end comprises a control unit, a communication unit and a steering engine, the control unit comprises a microcontroller and a plurality of peripheral modules, the peripheral modules are respectively connected to the microcontroller, the communication unit comprises a Bluetooth communication module, the Bluetooth communication module is connected to a signal receiving port of a controller, the client and the management service end are both provided with Bluetooth receiving and transmitting ports, and the Bluetooth module is communicated and connected to the Bluetooth receiving and transmitting ports through wireless transmission. The entrance guard control unit realizes the function of entrance guard system access control, and the bluetooth communication module realizes the serial communication and the client data interaction with the entrance guard control unit. In this embodiment, the client is a mobile phone application developed based on an Android system, the audience plane is an application developed for a user, and a core part of the application includes a client function module, a built-in sensor, and mobile phone bluetooth. Through the payment option of the application program, the entrance guard can be automatically opened after payment. The utility model discloses well management server includes server function module, database and bluetooth of mobile phone, realizes setting up functions such as entrance guard's password, administrative user authority. In the whole access control system, data interaction between the access control end and the smart phone end is realized through a Bluetooth wireless communication technology.

As shown in fig. 3, the microcontroller adopts an MSP430F5529 single-chip microcomputer as a main control chip, and is provided with a manual reset circuit, and a reset chip for monitoring low power consumption of the power supply is arranged in the reset circuit. In this embodiment, a reset chip is further arranged in the reset circuit and used for monitoring the low power consumption monitoring device STM811 of the power supply. The STM811 reset circuit can supervise and manage the power supply voltage, and when the power supply voltage is lower than the required voltage, the RST pin pulls down the output value through two pull-down resistors R17 and R18, so that the main control chip is kept reset until the power supply voltage returns to normal. And as can be seen from the figure, a 0.1uF capacitor is connected between the MR pin of the key reset input and GND, so that the noise reduction effect is provided for the device. And a crystal oscillator circuit is connected outside the microprocessor, and a 4MHZ crystal oscillator clock source is used for providing stable and accurate clock frequency for the system.

As shown in fig. 4, 5, 6 and 7, the peripheral module includes a power supply and anti-reverse connection circuit, an RTC clock circuit, a storage circuit and a program writing circuit, and the power supply and anti-reverse connection circuit, the RTC clock circuit, the storage circuit and the program writing circuit are respectively connected to corresponding ports of the microcontroller. As shown in fig. 4, the power supply and reverse connection prevention circuit includes a power supply circuit and a reverse connection prevention circuit, and is used for providing a stable and safe power supply and maintaining the normal operation of the whole door control device. In this embodiment, the power supply circuit and the anti-reverse connection circuit are formed by the LM2596 power converter, the field-effect transistor SI2302, and the resistance-capacitance single element. The power supply circuit mainly provides stable power supply voltage for the access controller. LM2596 is a switching voltage regulator of a step-down power management monolithic integrated circuit having excellent linearity and load regulation characteristics and capable of outputting a drive current of 3A. The fixed output versions are 3.3V, 5V and 12V, the adjustable output versions can output various voltages less than 37V, the working frequency of the adjustable output versions is 150KHZ, and a frequency compensation oscillator and a fixed frequency oscillator are integrated inside the adjustable output versions. The LM2596 can use a smaller size filter element than the low frequency switching regulator. The LM2569 greatly simplifies the design of the switching power supply circuit by using the characteristics of a universal standard inductor and only needing a small number of external elements. Because the working voltage of the microcontroller is 1.8V-3.6V, the LM2569 power converter is used to convert the external input voltage of 12V into the working voltage of 3.3V. D6 is transient voltage suppression diode in the circuit, as surge protector, prevents that the circuit is damaged to the high voltage in the twinkling of an eye, and the clamping voltage is in safe voltage simultaneously. The capacitor C14 and the inductor L1 form an LC filter network, and the ripple of the output end is removed. D5 is a diode used in conjunction with an inductive load, and when the current of the inductor changes suddenly or decreases, a surge voltage is generated across the inductor, which may damage other components. The diode D5 is connected in parallel, so that the current can change more gently, and the influence on the back-end circuit caused by the generation of surge voltage is avoided. The reverse connection preventing circuit is mainly composed of a field effect tube SI2302 and voltage dividing resistors R19 and R21. Before the door controller is powered on, the D-S pole of the field effect transistor is in an off state, and after the D-S pole is powered on, the G-S pole voltage is equal to 0.1 Vcc. Under the premise that 12V power voltage is stably input from the outside, the D-S pole conduction condition of the field effect transistor can be met. When the positive electrode and the negative electrode of the power supply are reversely connected, the voltage of the field effect tube G-S is at negative voltage, and no conductor exists in the period, so that an important chip of the circuit is protected, and the reverse connection prevention protection circuit is realized.

As shown in FIG. 5, the RTC clock circuit includes a time management chip that is serially interfaced to the micro controller. The RTC clock circuit is used for providing accurate time information for the microcontroller, in the embodiment, the DS1302 is selected as a time pipeline chip of the RTC clock circuit, and the DS1302 is connected with the smart card through synchronous serial communication and can work under low power consumption. The DS1302 chip is matched with X1 and X2 crystal oscillator pins to be externally connected with a 32.768KHZ crystal oscillator to form a clock circuit. VCC2 is the main power supply, and VCC1 is the backup power supply, and the accuracy of system clock is guaranteed to the cooperation use of the two. When the main power supply is powered off, the backup power supply can continuously supply power to the circuit to ensure the normal work of the clock. The DS1302 communicates with the master control chip MSP430F5529 through a simple serial interface, through which the master control chip can set time or obtain time information.

The storage circuit comprises a storage chip, the storage chip supports an SPI clock frequency of 104MHz, and the microcontroller reads and stores data with the storage chip by using an SPI interface. The storage circuit is used for storing relevant data when the control unit and the client or the management server perform data interaction through the Bluetooth communication module, so that data can be conveniently read by subsequent functions. In the embodiment, a W25Q128 chip is used as a memory chip, which indicates a standard interface and an SPI clock frequency, and the master control chip MSP430F5529 and the W25Q128 chip can read or store data by using the SPI interface. As can be seen from fig. 6, the SPI occupies only four wires on the chip pins, which not only saves the pins of the chip, but also saves space on the layout of the PCB, thereby providing convenience. The 4 lines of the SPI are three data lines of MISO, MOSI and SCLK, and a chip select line CS.

As shown in fig. 7, the program programming circuit is a JTAG standard program programming circuit with 4 pins, and functions that the micro controller can test the inside of the master control chip MSP430F5529 through the JTAG standard program programming circuit.

The microcontroller is further connected with a function module, the function module comprises a sound indicating circuit and a steering engine control circuit, the sound indicating circuit is connected with the buzzer, and the steering engine control circuit is connected to a steering engine. The buzzer is used for giving out indication sound after receiving the information of payment of the client, and prompting that the access control is opened successfully after the payment is given out. The steering engine control circuit is used for realizing the function of the parking lot entrance guard lifting rail by connecting the entrance guard controller with the steering engine interface to drive the steering engine rocker arm to rotate. As shown in fig. 8, the front end of the steering engine control circuit of this embodiment adopts an EL357 photocoupler, which plays an isolation protection role to prevent the signal at the rear end from affecting the front end signal and the important components in the reverse breakdown circuit. The light emitting diode D22 is illuminated to indicate that the door controller is in the open state. When the entrance guard controller receives a door opening instruction, an entrance guard equipment I/O interface corresponding to the controller can output a low level, a conduction channel is established at two ends of the optocoupler, photoelectric signal conversion is completed, the triode Q12 is conducted, the relay coil is driven to be electrified, the D22 is lightened when the contact is attracted, and the I/O port of the steering engine sends a PWM signal with the duty ratio of 12.5% to drive the swing arm of the steering engine to rotate for 90 degrees. When a door closing instruction is received, a high level is output, the two ends of the optocoupler are cut off, the triode Q12 is cut off, the coil of the relay is powered off, the contact is disconnected, and the D22 stops working. And an I/O port of the steering engine sends out a PWM signal with the duty ratio of 7.5% to drive a swing arm of the steering engine to return to the original point. As can be seen, a reverse diode D26 is connected in parallel with the relay, and the function of D26 is to prevent the driver or other elements from being damaged by the induced potential when the coil of the relay is powered on and off.

The present invention is not limited to the above description and drawings, but should be understood as being illustrative and not restrictive, and the technical features can be replaced and modified without creative efforts by those skilled in the art according to the technical content disclosed, all falling within the scope of the present invention.

Claims (8)

1. The utility model provides a public entrance guard, includes entrance guard's end, customer end and management service end, its characterized in that, entrance guard's end includes the control unit, communication unit and steering wheel, the control unit includes microcontroller and a plurality of peripheral module, and peripheral module is connected to microcontroller respectively, and communication unit includes bluetooth communication module, bluetooth communication module is connected to microcontroller's signal reception port, customer end and management service end all are provided with bluetooth transceiver port, bluetooth communication module is connected to bluetooth transceiver port through wireless transmission.

2. The public access control of claim 1, wherein the microcontroller is provided with a manual reset circuit, and a reset chip for monitoring low power consumption of a power supply is arranged in the reset circuit.

3. The public access control of claim 1, wherein the peripheral module comprises a power supply and anti-reverse connection circuit, an RTC clock circuit, a storage circuit and a program programming circuit, and the power supply and anti-reverse connection circuit, the RTC clock circuit, the storage circuit and the program programming circuit are respectively connected to corresponding ports of the microcontroller.

4. A public access control as claimed in claim 3, wherein the power supply and anti-reverse circuit comprises a power supply circuit and an anti-reverse circuit.

5. A public access control as claimed in claim 3, wherein the RTC clock circuit comprises a time management chip, the time management chip being serially interfaced to the microcontroller.

6. A public access control as claimed in claim 3, wherein the memory circuit comprises a memory chip, the memory chip supports an SPI clock frequency of 104MHz, and the microcontroller reads and stores data with the memory chip using the SPI interface.

7. A public access control as claimed in claim 3, wherein the programming circuit is a 4 pin JTAG standard programming circuit.

8. The public access control of claim 1, wherein the microcontroller is further connected with a function module, the function module comprises a sound indicating circuit and a steering engine control circuit, the sound indicating circuit is connected with a control buzzer, and the steering engine control circuit is connected with a steering engine.

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