CN201891311U

CN201891311U - Magnetically controlled computer key

Info

Publication number: CN201891311U
Application number: CN2010202571349U
Authority: CN
Inventors: 谢小渭; 汪平; 刘亚峰; 吴化洪
Original assignee: Zhuhai Contron Power Safety Technology Co Ltd
Current assignee: Zhuhai Contron Power Safety Technology Co Ltd
Priority date: 2010-07-13
Filing date: 2010-07-13
Publication date: 2011-07-06
Anticipated expiration: 2020-07-13

Abstract

The utility model discloses a magnetically controlled computer key which comprises an MCU core control module, a communication module, an LCD display module, a clock module, a button input module, a FLASH storage module, a power supply management module, a voice module and a motor driving module. The MCU core control module is connected with a wireless RFID radio frequency module which has magnetic coding and magnetic position state detection. The wireless RFID radio frequency module collects the coding information in a radio frequency IC card chip of a coding lock equipped on field equipment for determination by the MCU core control module. Furthermore the coding information to be corrected is written on the radio frequency IC card chip on the RFID radio frequency module. The unlocking of an electric coding lock and a mechanical coding lock is automatically realized through magnetic control for eliminating operation unsmoothness of the mechanism and interference to the computer key.

Description

Magnet controlled computer key

Technical field

The utility model relates to the computer key in the field shutting device to prevent mistakes in microcomputer such as transformer station, power plant, especially a kind of magnet controlled computer key.

Background technology

At present, shutting device to prevent mistakes in microcomputer and error proof locking system of microcomputer, in dispensing power plant stations such as transformer station or power plant, use very extensive, shutting device to prevent mistakes in microcomputer is to be nucleus equipment with five protection computers and computer key, during operation, the staff at first on computers, carry out simulated operation according to " five is anti-" principle, correct operation order is transferred to computer key, the staff just can hold computer key, and it is adopted in the corresponding encoded lock of harbour insertion equipment, and whether the detecting operation object is correct, if it is correct, according to the operating sequence that shows on the computer key, to the line breaker at scene, isolating switch, equipment such as cabinet door carry out grid switching operation, finish the back computer key and show the next item down content of operation automatically, if operating mistake or go to the wrong way at interval just can not unblank to operate; The coding lock that uses at present mostly is mechanical coding lock and electric coding lock greatly, and mechanical coding lock adopts frame for movement, the contact coding, it is unreliable to adopt sign indicating number, make mistakes easily, mechanical unlocking mechanism easily gets rusty, the long-term use, open difficulty, problems such as card relates to occur easily, mechanical coding lock does not have sensing device simultaneously, virtual condition that can not decision operation equipment, easily cause " dummy routine " and cause maloperation, cause serious accidents such as power station power failure, tripping operation; In the electric coding lock because lockset seals in once, in the secondary control loop, when opening, dividing operation, be easy to generate the stability of interference effect computer key work, simultaneously also because different switch manufacturer switching current parameter is also different, the electric coding lock processing ease is being appearred for automatic leapfrog or not leapfrog problem, cause operating mistake maybe may cause on-load drawing disconnecting link, thereby cause operating accident.

Summary of the invention

The utility model provides a kind of employing magnetic coding and magnetic potential configuration state detection technique, the virtual condition of accurate detecting operation equipment, automatically realize release, elimination mechanism operation bite and the magnet controlled computer key that computer key is disturbed of electric coding lock, mechanical coding lock by magnetic control.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of magnet controlled computer key comprises the MCU kernel control module, communication module, the LCD display module, clock module, keyboard input module, the FLASH memory module, power management module, voice module and motor drive module; Described MCU kernel control module connects the wireless RF ID radio-frequency module with magnetic coding and the detection of magnetic potential configuration state, the coded message that the collection of described wireless RF ID radio-frequency module is contained on the site plant in the RF IC card chip of coding lock judged by the MCU kernel control module, and the coded message that will need to revise writes on the RF IC card chip on the RFID radio-frequency module.

The beneficial effects of the utility model are: the unreliable problem that has solved mechanical coding lock " sign indicating number is adopted in the contact; manually unblank; the artificial inspection ", solving electric coding lock is opening, easy interference effect computer key job stability problem when dividing operation, cause leapfrog or not leapfrog and operating mistake maybe may cause problems such as on-load drawing disconnecting link, realize " less radio-frequency is adopted sign indicating number; auto-unlocking; the automatic checkout equipment state ", have and adopt sign indicating number accurately, fast, the reliability height, simple to operation, good seal performance, be difficult for getting rusty, characteristics such as long service life, power supply circuits are prevented maloperation, prevent the sky walking program, stop accident potential, be the safe operation in the power station condition of giving security.

Description of drawings

Fig. 1 is a control circuit block diagram in the utility model.

Fig. 2 is RFID radio frequency module circuit figure in the utility model.

Fig. 3 is a clock module circuit diagram in the utility model.

Fig. 4 is a FLASH memory module circuit diagram in the utility model.

Fig. 5 is a voice module circuit diagram in the utility model.

Fig. 6 is a motor terminal wiring diagram in the utility model.

Fig. 7 is a motor drive module circuit diagram in the utility model.

Fig. 8 is MCU kernel control module figure in the utility model.

The specific embodiment

The magnet controlled computer key that present embodiment provides, extremely shown in Figure 8 as Fig. 1, comprise the MCU kernel control module, communication module, the LCD display module, clock module, keyboard input module, the FLASH memory module, power management module, voice module and motor drive module, described MCU kernel control module connect the wireless RF ID radio-frequency module with magnetic coding and the detection of magnetic potential configuration state, the coded message that the collection of described wireless RF ID radio-frequency module is contained on the site plant in the RF IC card chip of coding lock judged by the MCU kernel control module, and the coded message that will need to revise writes on the RF IC card chip on the RFID radio-frequency module.

Wireless RF ID radio-frequency module is the IC-card chip (EM4095) by contactless read-write, signal transmission circuit, and signal receiving circuit and transmit receive antenna are formed, and pin SDA, the SCL of clock module U102 is connected with pin SDA, the SCL of MCU kernel control module U0.Pin MOSI, the MISO of voice module U104, SCK are connected with pin MOSI, MISO, the SCK of MCU kernel control module U0.Pin SI, the SO of FLASH memory module U103, SCK are connected with pin MOSI, MISO, the SCK of MCU kernel control module U0, the pin 2 of the chip U1 (BA6846FV) of motor drive module and stepper motor

End connects, the pin 6 of the chip U1 (BA6846FV) of motor drive module is connected with the A of stepper motor end, the pin 13 of the chip U1 (BA6846FV) of motor drive module is connected with the B of stepper motor end, the pin 8 of the chip U1 (BA6846FV) of motor drive module and stepper motor

End connects.

During use, after computer key receives self-study information and operational order from computer, by MCU kernel control module chip from FLASH memory module read operation information and send the LCD display module to show, while wireless RF ID radio-frequency module acquisition operations signal, and analyze, relatively, judge, control motor drive module then, carry out corresponding unlocking operation, the voice suggestion of voice module output simultaneously, by line RFID radio-frequency module acquisition operations signal, solving electric coding lock is opening, easy interference effect computer key job stability problem when dividing operation, cause leapfrog or not leapfrog and operating mistake or go to the wrong way problem such as interval, realize " less radio-frequency is adopted sign indicating number; auto-unlocking; the automatic checkout equipment state " having and adopt sign indicating number accurately, fast, the reliability height, simple to operation, power supply circuits are prevented maloperation, prevent the sky walking program, stop accident potential, be the safe operation in the power station condition of giving security.

The above embodiment for preferred embodiment of the present utility model, is not to limit practical range of the present utility model with this just, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the exposure scope of the present utility model.

Claims

1. a magnet controlled computer key is characterized in that: comprise the MCU kernel control module, communication module, LCD display module, clock module, keyboard input module, FLASH memory module, power management module, voice module and motor drive module; Described MCU kernel control module connects the wireless RF ID radio-frequency module with magnetic coding and the detection of magnetic potential configuration state, the coded message that the collection of described wireless RF ID radio-frequency module is contained on the site plant in the RF IC card chip of coding lock judged by the MCU kernel control module, and the coded message that will need to revise writes on the RF IC card chip on the RFID radio-frequency module.

2. magnet controlled computer key according to claim 1 is characterized in that: described wireless RF ID radio-frequency module is the IC-card chip by contactless read-write, signal transmission circuit, and signal receiving circuit and transmit receive antenna are formed.

3. magnet controlled computer key according to claim 1 is characterized in that: pin SDA, the SCL of described clock module U102 is connected with pin SDA, the SCL of MCU kernel control module U0.

4. magnet controlled computer key according to claim 1 is characterized in that: pin MOSI, the MISO of described voice module U104, SCK are connected with pin MOSI, MISO, the SCK of MCU kernel control module U0.

5. magnet controlled computer key according to claim 1 is characterized in that: pin SI, the SO of described FLASH memory module U103, SCK are connected with pin MOSI, MISO, the SCK of MCU kernel control module U0.

6. magnet controlled computer key according to claim 1 is characterized in that: the pin 2 of the chip U1 of described motor drive module and stepper motor

End connects, and the pin 6 of the chip U1 of motor drive module is connected with the A of stepper motor end, and the pin 13 of the chip U1 of motor drive module is connected with the B of stepper motor end, the pin 8 of the chip U1 of motor drive module and stepper motor

End connects.