Intelligent access control system of cab based on RFID (Radio Frequency Identification Device) technology

Abstract

The utility model relates to an intelligent access control system, in particular to a driver's cab intelligent access control system based on a radio frequency identification (RFID) technology and a control method of the driver's cab intelligent access control system. The driver's cab intelligent access control system based on the RFID technology comprises an intelligent controller, the intelligent controller is connected with a central control touch screen, a reader-writer, an illuminance sensor, a temperature sensor, a heating system relay, an air conditioning system relay, a door lock motor relay, an illumination driving loop and an intelligent seat relay, and the heating system relay is connected with a heating system. The air-conditioning system relay is connected with an air-conditioning system, the door lock motor relay is connected with a door lock motor, the illumination driving loop is connected with cab illumination, the intelligent seat relay is connected with an intelligent seat, and the reader-writer is connected with an electronic key provided with an RFID chip. According to the structure, the door lock is automatically opened in advance before a driver enters a cab, the workload of the driver is reduced, and the intelligence and automation level of the locomotive cab door is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a door access system, especially a driver room intelligent door access system based on RFID technology. BACKGROUND

[0002] In the traditional locomotive operation, most of the operations still adopt manual means, the lighting, air conditioning system, heater, seat and driver room door opening and closing operation of the driver room all adopt manual means. Long time manual operation can easily lead to high work intensity of the driver, low efficiency, potential safety hazards, poor driver room driving experience and other problems. UTILITY MODEL CONTENT

[0003] The utility model aims at solving the above-mentioned defects, and provides a driver room intelligent door access system based on RFID technology.

[0004] In order to overcome the defects in the background art, the utility model solves the technical problems by adopting the technical scheme that the driver room intelligent door access system based on RFID technology comprises an intelligent controller, the intelligent controller is connected with a central control touch screen, a reader / writer, an illumination sensor, a temperature sensor, a heating system relay, an air conditioning system relay, a door lock motor relay, an illumination driving circuit and an intelligent seat relay, the heating system relay is connected with a heating system, the air conditioning system relay is connected with an air conditioning system, the door lock motor relay is connected with a door lock motor, the illumination driving circuit is connected with driver room illumination, the intelligent seat relay is connected with an intelligent seat, and the reader / writer is connected with an electronic key provided with an RFID chip.

[0005] According to another embodiment of the utility model, the central control touch screen further comprises a remote / just-in-place state indicating lamp, a remote / just-in-place touch switch, a door opening / closing touch switch, an air conditioning opening / closing touch switch, a heater opening / closing touch switch, an illumination opening / closing touch switch and a seat heater / fan touch switch.

[0006] According to another embodiment of the utility model, the electronic key records personal information of the driver, and sends the personal information of the driver to the reader / writer in the form of a radio frequency signal.

[0007] According to another embodiment of the utility model, the reader / writer is used for receiving the personal information of the driver sent by the electronic key, and uploads data to the intelligent controller in a wired or wireless mode, and the distance of receiving the radio frequency signal is adjusted by adjusting the power of the reader / writer.

[0008] According to another embodiment of the utility model, further include the intelligent controller adopts the form of PLC or singlechip, receive the upload signal of read-write device, central control touch screen, illumination sensor and temperature sensor, process these information, then send control instruction to outside, execute relevant action, the intelligent controller can receive the signal of read-write device, send output signal to door lock motor relay, control the door of driver room to open, the intelligent controller can receive the signal of read-write device and illumination sensor, send PWM signal to lighting drive circuit, control the lighting lamp of driver room to open and adjust the brightness of the lighting lamp, the intelligent controller can receive the signal of temperature sensor and read-write device, send control instruction to air conditioning system switch, control the air conditioning system of driver room to run.

[0009] According to another embodiment of the utility model, further include the intelligent controller is microcomputer system or PLC system.

[0010] The utility model has the advantages of:

[0011] 1, introduce RFID technology, realize the identification, authentication of the driver personal information through RFID technology, and automatically upload to the intelligent controller, realize the identity authentication of the driver;

[0012] 2, realize the driver to enter the driver room in advance, automatically open the door lock, reduce the workload of the driver, improve the intelligent and automation level of the locomotive driver room door;

[0013] 3, realize the driver to enter the driver room in advance, automatically open the driver room lighting and door lamp, and automatically adjust the brightness of the lighting lamp according to the brightness in the driver room, improve the intelligent level of the lighting system, and further improve the experience of the driver;

[0014] 4, realize the driver to enter the driver room in advance, control the air conditioner or heater in the locomotive driver room, so that the temperature in the driver room is kept at the set value, realize the intelligent control of the temperature of the locomotive driver room, improve the comfort of the locomotive.

[0015] 5, according to the driver identity collected by RFID technology, adjust the driver room seat to the appropriate form and temperature in advance, for example, the height of shoulder support, the inclination angle of copy, etc., improve the comfort of the locomotive driver. DRAWINGS

[0016] The utility model is further illustrated below in combination with the drawings and examples.

[0017] Figure 1 It is the structure schematic diagram of the utility model;

[0018] Figure 2 It is the structure schematic diagram of the lighting lamp control system;

[0019] Figure 3 Fig. 1 is a structural schematic diagram of a door lock motor control circuit. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] The intelligent access control system of the intelligent cab of the locomotive adopts the RFID technology, realizes the identity authentication of the driver in the cab through the non-contact mode, and completes the input of the personal information of the driver and transmits the personal information to the intelligent controller. The intelligent controller sends the control instructions to realize the power-on and logical control of the lighting, air conditioner, heater, seat and cab door of the cab of the locomotive.

[0022] As shown in Figure 1 Fig. 1, the intelligent controller is connected with the central control touch screen, the reader-writer, the illumination sensor, the temperature sensor, the heating system relay, the air conditioning system relay, the door lock motor relay, the lighting driving circuit and the intelligent seat relay. The heating system relay is connected with the heating system, the air conditioning system relay is connected with the air conditioning system, the door lock motor relay is connected with the door lock motor, the lighting driving circuit is connected with the cab lighting, the intelligent seat relay is connected with the intelligent seat, and the reader-writer is connected with the electronic key provided with the RFID chip.

[0023] The central control touch screen includes the remote / local state indicating lamp, the remote / local touch switch, the door opening / closing touch switch, the air conditioning opening / closing touch switch, the heater opening / closing touch switch, the lighting opening / closing touch switch and the seat heater / fan touch switch.

[0024] The electronic key records the personal information of the driver and sends the personal information of the driver to the reader-writer in the form of the radio frequency signal. The RFID chip in the electronic key can adopt three schemes.

[0025] Scheme 1: the RFID adopts the passive chip. The chip can receive the radio frequency signal sent by the reader-writer. When the electronic key enters the effective identification range of the reader-writer, the RFID chip receives the radio frequency signal and senses the energy to send the information stored in the RFID chip. The scheme is relatively mature and is applied most widely.

[0026] Scheme 2: RFID adopts active chip, which has the characteristics of long-distance automatic identification, so it is applied to some large environment accordingly. The disadvantage is that it needs external power supply for power supply.

[0027] Scheme 3: RFID technology in electronic key can use low-power technologies such as Bluetooth and Zigbee instead, only need to increase the battery as the power supply on the basis of the original scheme.

[0028] Figure 1 The hardware composition diagram of the intelligent locomotive intelligent access control system, the role of each part is:

[0029] The electronic key is used to record the personal information of the driver, and sends the driver's personal information to the reader in the form of radio frequency signal;

[0030] The reader is used to receive the driver's personal information sent by the electronic key, and upload data to the intelligent controller through wired (Ethernet or serial communication) or wireless (4G / 5G) mode. The distance of receiving radio frequency signal of the reader can be adjusted by adjusting the power of the reader;

[0031] The intelligent controller can adopt the form of PLC or single-chip microcomputer, can receive the upload signals of the reader, touch screen, illuminance sensor and temperature sensor, process these information, and then send control instructions to the outside to execute related actions.

[0032] The intelligent controller can receive the signal of the reader, send output signal to the door lock motor relay, and control the opening of the door of the driver's room.

[0033] The intelligent controller can receive the signals of the reader and the illuminance sensor, send PWM signal to the lighting drive circuit, control the opening of the lighting lamp in the driver's room and adjust the brightness of the lighting lamp.

[0034] The intelligent controller can receive the signals of the temperature sensor and the reader, send control instructions to the air conditioning system switch, and control the operation of the air conditioning system in the driver's room.

[0035] The illuminance sensor is mainly used to detect the light intensity of the driver's room in real time, which is used as the basis for adjusting the brightness of the driver's room lighting.

[0036] The temperature sensor is mainly used to detect the temperature of the driver's room in real time, which is used as the basis for controlling the air conditioning system, heater and intelligent seat heater, fan in the driver's room.

[0037] The lighting drive circuit is mainly used to realize the control of power supply, brightness and color temperature of the lighting in the driver's room.

[0038] The door lock motor relay is mainly used to supply power for the door lock motor. Through the relay, the door lock motor can be reversed, thereby controlling the opening and closing of the cab door. In addition, the door can be manually controlled through the door opening button in the cab.

[0039] The air conditioning system relay is mainly used to realize the power supply, mode and temperature value control of the air conditioning system.

[0040] The heater system relay is mainly used to realize the power supply and control of the heating system.

[0041] The intelligent seat relay is mainly used to control the shape and temperature of the intelligent seat.

[0042] The selection switch on the operation table is mainly used to switch between remote and local modes to realize manual control of the door, air conditioner and heater.

[0043] 2. Hardware system design:

[0044] 1) Power system design:

[0045] The power system is mainly used to supply power to the reader, intelligent controller, door lock motor, lighting, air conditioning system, heater and intelligent seat. The respective power supply voltages are shown in Table 1:

[0046]

[0047] RFID circuit:

[0048] The RFID circuit mainly includes two parts of RFID chip and reader. Considering the actual working condition, we choose to fix the reader on the locomotive and install the RFID chip inside the electronic key, which is carried by the driver.

[0049] The reader output power is adjustable, with an independent antenna. The detection distance of the reader can be changed by adjusting the output power of the reader.

[0050] We choose passive mode for the RFID chip, which does not have its own power supply. The power supply is triggered by the pulse signal emitted by the reader. When the driver wears the electronic key and enters the effective detection range of the reader, the electromagnetic wave emitted by the reader charges the RFID chip, and the RFID chip transmits information by emitting a signal.

[0051] Lighting circuit design:

[0052] As shown in Figure 2 The lighting circuit includes three parts, namely the intelligent controller, PWM controller and LED driver.

[0053] The intelligent controller is mainly used for receiving the illumination sensor signal and the touch screen instruction, and sending the illumination and color temperature control signal to the lighting system; the PWM controller receives the intelligent controller signal, and sends the voltage signal and the power supply voltage to the LED driver; and the LED driver directly controls the lighting lamp.

[0054] The door lock motor control circuit:

[0055] The door lock motor control circuit is composed of two relays, which are respectively used for controlling the forward and reverse rotation of the door lock motor to open and close the cab door, as shown in Figure 3 The K1 and K2 are both two relays of the door lock motor, when the K1 is attracted, the motor rotates forward, and when the K2 is attracted, the motor rotates reversely, in order to prevent accidents in the control process, the K1 relay and the K2 relay are interlocked.

[0056] The central control touch screen:

[0057] The central control touch screen is located on the operation table in the cab, and integrates the virtual operation buttons and state indications of various components.

[0058] A control method of a cab intelligent access control system based on RFID technology, the method comprises:

[0059] In the first step, the driver carries the electronic key close to the locomotive, enters the setting range of the reader-writer, the reader-writer receives the personal signal of the driver sent by the RFID chip in the electronic key, the reader-writer sends the signal to the intelligent controller, judges whether the driver is normally authorized, and stores the judgment result in the database, if the judgment is normal authorization, judges the operation table mode switch is in the manual state, at this time, the cab lighting, air conditioner, heater, intelligent seat can be manually controlled through the operation table touch screen; if the operation table mode switch is in the automatic state, the system automatically collects the illumination signal, and automatically adjusts the brightness and color temperature of the lighting system; the system automatically collects the temperature signal inside and outside the cab, and automatically controls the air conditioning system, the heater and the intelligent seat, so that the temperature in the cab is controlled within the range of 18-23 DEG C.

[0060] In the second step, the cab automatically opens the door, and automatically closes the door after detecting that the driver enters.

[0061] The above only describes the preferred embodiments of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A driver's cabin intelligent access control system based on RFID technology, characterized in that: The intelligent controller is connected with the central control touch screen, the read-write device, the illumination sensor, the temperature sensor, the heating system relay, the air conditioning system relay, the door lock motor relay, the lighting driving circuit and the intelligent seat relay.

2. The driver's cabin intelligent access control system based on RFID technology according to claim 1, characterized in that: The central control touch screen is provided with remote / local state indicating lamps, remote / local touch switches, door opening / closing touch switches, air conditioning opening / closing touch switches, heater opening / closing touch switches, lighting opening / closing touch switches and seat heater / fan touch switches.

3. The driver's cabin intelligent access control system based on RFID technology according to claim 1, characterized in that: The electronic key is provided with an RFID chip, and the personal information of the driver is recorded in the electronic key and transmitted to the read-write device in the form of a radio frequency signal.

4. The intelligent door access system for a driver's cabin based on RFID technology according to claim 1, characterized in that: The read-write device is used for receiving the personal information of the driver transmitted by the electronic key and uploading data to the intelligent controller in a wired or wireless mode, and the distance for receiving the radio frequency signal is adjusted by adjusting the power of the read-write device.

5. The intelligent driver's cab access control system based on RFID technology as claimed in claim 1, wherein: The intelligent controller is in the form of a PLC or a single-chip microcomputer, receives the uploaded signals of the read-write device, the central control touch screen, the illumination sensor and the temperature sensor, processes these information, and then sends control instructions to the outside to perform relevant actions; the intelligent controller can receive the signal of the read-write device, send an output signal to the door lock motor relay to control the opening of the door of the driver's room; the intelligent controller can receive the signals of the read-write device and the illumination sensor, send a PWM signal to the lighting driving circuit to control the opening of the lighting lamp of the driver's room and adjust the brightness of the lighting lamp; the intelligent controller can receive the signals of the temperature sensor and the read-write device, send a control instruction to the air conditioning system switch to control the operation of the air conditioning system of the driver's room.

6. The intelligent driver's cab access control system based on RFID technology as claimed in claim 1, wherein: The intelligent controller is a microcomputer system or a PLC system.

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