CN104282068A - Permission device for error prevention locks of substation - Google Patents

Abstract

The invention relates to a permission device for anti-mistake locks in a substation, which includes each lock in the substation and a computer key for opening each lock, and each lock is attached with its corresponding radio frequency identification tag, and each radio frequency identification electronic Tags have their own individual lock codes; computer keys include batteries, ARM processors for identifying, comparing and controlling input signals, card reading modules, real-time clock modules, LCD display modules, information storage modules, communication modules and lock drivers module, the card reading module communicates with the radio frequency identification electronic tag through the antenna, the communication module connected to the communication port of the ARM processor is connected with the host computer, the LCD display module, the information storage module, the real-time clock module and the locking drive module are respectively connected with the ARM Processor input/output port connections. The invention has reasonable structure, convenient operation and can improve safety and reliability.

Description

Licensing device for anti-misoperation locks in substations

This application is a divisional application of the invention patent application with the application number: 201210068203.5, the invention name is "Remote Licensing Device for Substation Misoperation Prevention Lockset", and the application date is: March 15, 2012.

technical field

The invention relates to a remote permitting device for an anti-misoperation lockset of a substation, and belongs to the technical field of five-proof microcomputer locks for a substation.

Background technique

With the rapid development of the power grid, a large number of equipment in the substation has increased. Although the operation and maintenance personnel can identify various equipment by marking double names, it still happens from time to time to enter the charged interval by mistake and misoperate the grid equipment.

In order to avoid these accidents more reliably, the anti-misoperation locking method of "measurement and control interlock + electrical interlock" is currently adopted. However, effective anti-misoperation locking technical means have not yet been adopted for the operating handles of various mechanism boxes, terminal box doors and manual operation equipment in the substation.

Although the five-proof microcomputer lock can effectively avoid the occurrence of equipment misoperation accidents, 10-digit codes are used for lock management, so there are only 1024 permutations and combinations, so there are currently two disadvantages: 1. The number of equipment in the substation is limited. restricted. When the number of devices in a substation exceeds 1024, the codes of the locks will be repeated, which will bring great safety hazards to the operation safety; 2. Only one substation can be controlled. Since only one substation can be controlled, different devices in different substations produce the same code. If maintenance personnel want to perform batch work such as patrolling and eliminating defects in multiple substations in sequence, the operating personnel must always follow the maintenance personnel and perform computer key authorization on site, which greatly wastes the time and energy of the operating personnel.

Contents of the invention

The object of the present invention is to provide a remote permission device for a substation anti-misoperation lock with reasonable structure, convenient operation and improved safety and reliability.

The technical solution of the present invention to achieve the above object is: a permission device for anti-mistaken locks in a substation, including each lock in the substation and a computer key for opening each lock, characterized in that: each lock is attached There are corresponding radio frequency identification electronic tags, and each radio frequency identification electronic tag has its own separate lock code; the computer key includes a battery for providing working power, and an ARM processor for identifying, comparing and controlling input signals , card reader module, real-time clock module, LCD display module, information storage module, communication module and lock drive module for reading the code of the lock on the electronic tag, and the battery is respectively connected with the card reader module, real-time clock module, LCD display module, information The storage module and the communication module are connected with the locking drive module, the card reading module communicates with the radio frequency identification electronic tag through the antenna, the communication module connected to the communication port of the ARM processor is connected with the host computer, the LCD display module, the information storage module and the real-time The clock module and the latch drive module are respectively connected to the input/output ports of the ARM processor.

The licensing device of the present invention adopts radio frequency technology, and each lockset is attached with a corresponding radio frequency identification electronic tag, so that each radio frequency identification electronic tag has its own separate code for the lock, and the computer key includes an ARM processor, a card reading module, and a real-time clock module. , LCD display module, information storage module, communication module and lock drive module, through the card reading module to read the lock code uniquely compiled on the radio frequency identification electronic tag, and the ARM processor is connected with the host computer through the communication module, and can be obtained through the host computer License unlocking information, so that the information storage module stores the license unlocking information, and at the same time, the license unlocking information is displayed instantly through the LCD display module, and the ARM processor compares the obtained license unlocking information with the lock code information on the radio frequency identification electronic tag and judges the unlocking Whether the license information is valid, only when the unlock license information is valid, the ARM processor inputs the control signal to make the lock drive module work, and the mechanical lock of the lock is used to unlock and unlock the device, and unlock the five-proof lock. The information storage module of the present invention can record the unlocking time of each step of the licensed unlocking information, key information such as unlocking personnel and licensed personnel, and power-off information, and at the same time display the licensed unlocking information in real time through the LCD display module, which is convenient for reminders and traceability. The present invention adopts the radio frequency identification electronic tag, and establishes a unique corresponding relationship between the code of the lock and the actual installation position of the lock, realizes the unique code in a wide range through electronic coding, and solves the great potential safety hazard caused by the duplication of the code of the lock. It is a license to perform key decoding on any equipment in the substation at the same time. The invention has perfect functions and strong expandability, and can allow operating personnel to perform remote permitting to open a certain anti-mistake lock in a certain substation, or allow to open multiple sets of anti-mistake locks in multiple substations, ensuring safety and correctness. On the basis of reducing the labor intensity of the operating personnel, the function is complete, the safety and reliability are good, and the integration is high, which meets the needs of on-site use.

Description of drawings

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Fig. 1 is a structural block diagram of the permission device of the substation anti-misoperation lock of the present invention.

Fig. 2 is a structural block diagram of the computer key of the present invention.

Detailed ways

As shown in Figures 1 and 2, the permission device of the substation anti-mistake lockset of the present invention includes each lockset in the substation to have a computer key for opening each lockset, and each lockset of the present invention is attached with a corresponding radio frequency identification (RFID) key. Electronic tags, and each radio frequency identification electronic tag has its own separate lock code, the radio frequency identification electronic tag of the present invention includes a crystal rubber layer, an anti-metal material layer, a radio frequency antenna and a radio frequency chip packaged as one, and the rubber layer is fixed on the anti-metal material On one side of the layer, the radio frequency identification antenna and the radio frequency identification chip are fixed on the other side of the anti-metal material layer. The anti-metal material layer adopts magnetic cloth to ensure accurate reading of data. Between the computer key and the radio frequency identification electronic tag of the present invention The card reading distance is less than 0.05m, and the radio frequency identification electronic tag can use a 915MHz radio frequency identification chip. Used in large-scale open-air power equipment inspection, large-scale iron tower pole inspection, large and medium-sized elevator inspection, factory equipment management, line inspection, metal bridge quality inspection, tunnel inspection, machine identification, vehicle license plate, metal container management, various electric power In terms of household equipment, etc., it solves the problem that the radio frequency identification electronic tag cannot be attached to the metal surface for use, and realizes a large number of non-repeated lock codes in a wide range of equipment.

As shown in Figures 1 and 2, the computer key of the present invention includes a battery for providing working power, an ARM processor for identifying, comparing and controlling input signals, and a card reader module for reading lock codes on electronic tags , real-time clock module, LCD display module, information storage module, communication module and locking drive module, as shown in Fig. Lock the drive module connection, and provide working power for each module through the battery. The battery can be a rechargeable lithium battery, which can be charged after being connected to the mains. The lithium battery has a long service life, light weight, and can be used at -20°C- It is used in the environment of -60 ℃, and has strong adaptability to high and low temperature. As shown in Figures 1 and 2, the card reading module of the present invention communicates with the radio frequency identification electronic tag through the radio frequency identification antenna, obtains the lock code of the radio frequency identification electronic tag through the card reading module, transmits the lock code information to the ARM processor, and connects the The communication module on the communication port of the ARM processor is connected to the upper computer. The communication module can be a wireless pass-through module or a wired communication module. The lock codes stored in the authorization management software in the upper computer and the server are uniquely corresponding to the locks of each device. At the same time, the authorization management software can count and maintain the lock code of the substation equipment, and can also establish the security criterion of the lock code when transmitting the unlock code to determine whether the lock can be opened. The personnel issue the unlocking request, and the operating personnel approve the work after reviewing the maintenance work, and transmit the lock code, lock decoding and security criteria corresponding to the required unlocking to the ARM processor from the server and the host computer. The ARM processor compares the lock code of the read RFID electronic tag with the received license unlocking information, and judges whether the license unlocking information is valid, so it can avoid accidental opening and accidental touch on the basis of operating equipment and reduce repeated operations. Improve the work efficiency and safety and reliability of operating personnel. The LCD display module, the information storage module, the real-time clock module and the locking drive module of the present invention are respectively connected with the input/output ports of the ARM processor, and the real-time clock module can provide the computer key with seconds, minutes, hours, days, weeks, months and years and other information, the LCD display module can display the license information in time, the time of each step in the process of unlocking the license, the person who unlocks the lock and the licensee, and the information storage module can store the unlocking information of the license. When the permission information is valid, the locking drive module is controlled to output the unlocking signal. At this time, the lock is unlocked and unlocked by manually operating the mechanical locking mechanism of the lock. The computer key of the present invention is a hand-held device, which is convenient for the staff to carry and operate.

The card reading module of the present invention is an ultra-high frequency RFID reader, such as the RMU900+ module. The RMU900+ module is a core component of an ultra-miniature UHF RFID reader, which integrates PLL, transmission, reception, radio frequency coupling devices, and MCU. Components, users only need to provide power supply and communication interface on the basis of the module, and then they can easily control the module to work through the API function library. The RMU900+ module works at low voltage +3.3V, which is suitable for the development of handheld users.

The ARM processor of the present invention adopts an ARM9 processor or an ARM7 processor, and the ARM processor is also provided with a serial interface, which is connected to a local USB interface through the serial interface to realize local data reading. If the ARM processor of the present invention adopts the LPC2220 microprocessor of Phillips, the LPC2220 microcontroller is a 32/16-bit ARM7TDMI-S CPU that supports real-time simulation and embedded tracking, 144-pin packaging, extremely low power consumption, and multiple 32-bit Timer, 8-channel 10-bit ADC, PWM output and up to 9 external interrupt pins make them especially suitable for industrial control. With low power consumption design, the computer key can stand by for a long time and can be woken up by pressing the button.

As shown in Figures 1 and 2, when the permission device of the substation anti-mistake lockset of the present invention is working, when the maintenance personnel need to unlock, the computer key is connected to the host computer through the communication module, and the key to be unlocked is clicked on the simulated five-defense map. The device sends unlock request information to remote operators. After receiving the unlocking demand information, the operating personnel review the maintenance work, agree to the work, and transmit the unlocking information of the lock code, lock decoding and safety criteria to the computer key through the host computer, and the information storage module records the remote license of the anti-mistake lock. The time, staff and authorized personnel information in each step of the process, insert the computer key into the lock, and then control the card reader module to read the code information of the lock, the read information will be displayed immediately through the LCD module, and the computer key will read the code of the lock Compare the authorization information, if the authorization information is valid, output the control signal, so that the lock drive module outputs the unlock signal and unlock the five-proof lock, the operator can press the unlock button at this time, the lock is unlocked and opened, and the information is stored The module records the unlocking time, unlocking personnel and other unlocking information and power-off information, and the present invention can also connect the local USB interface through the serial port interface to realize local data reading.

Claims (1)

1. the approval apparatus of electric substation's anti-error lock, comprise each lockset in electric substation and the computer key for opening each lockset, it is characterized in that: described each lockset is attached with each self-corresponding radio frequency recognizing electronic label, and each radio frequency recognizing electronic label has lockset coding independent separately, described computer key comprises the battery for providing working power, for the arm processor to input signal identification contrast and control, the card reading module of lockset coding on reading electronic labels, real-time clock module, LCD display module, information storage module, communication module and latch actuation module, battery respectively with card reading module, real-time clock module, LCD display module, information storage module, communication module and latch actuation model calling, card reading module is by radio-frequency antenna and radio frequency recognizing electronic label communication, the communication module be connected in arm processor PORT COM is connected with host computer, LCD display module, information storage module, real-time clock module is connected with the input/output end port of arm processor respectively with latch actuation module,

When the approval apparatus of described electric substation anti-error lock works, card reading module is by radio-frequency antenna and radio frequency recognizing electronic label communication, the lockset coded message of radio frequency recognizing electronic label is obtained by card reading module, and lockset coded message is transferred in arm processor, the communication module be connected in arm processor PORT COM is connected with host computer; License is unblanked after in information transmission to arm processor by host computer, the lockset coded message of the radio frequency recognizing electronic label read and the license information of unblanking received contrast by arm processor, and carry out judging that whether license information of unblanking is effective, if authorization information effectively, export control signal, make latch actuation module export unlocking signal and unlock five anti-locksets;

Described card reading module is super high frequency radio frequency recognition read-write machine;

Described arm processor adopts ARM9 processor or ARM7 processor, and arm processor is also provided with serial interface.