CN100452263C - Portable monitor for electrical system five-protection using - Google Patents
Portable monitor for electrical system five-protection using Download PDFInfo
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- CN100452263C CN100452263C CNB2006100170690A CN200610017069A CN100452263C CN 100452263 C CN100452263 C CN 100452263C CN B2006100170690 A CNB2006100170690 A CN B2006100170690A CN 200610017069 A CN200610017069 A CN 200610017069A CN 100452263 C CN100452263 C CN 100452263C
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- monitor
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- card
- protection
- electrical system
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Abstract
This invention discloses a portable monitor of a power system for preventing error open and close breakers characterizing in: setting a card-read component, an electricity verifying component, a CPU, an operation key, a LCD display screen, a sound and optical warning signal and RS 232 interface exchanging data with the primary computer, before operation, the set state software writes the operation content in the monitor, reads content recorded in the monitor, stores data in the data base, sets up files to be managed and enquired, which can prevent error operation.
Description
Technical field
The present invention relates to a kind of electric power system operation safety device.
Background technology
Can safety in production be self-evident for the importance of electric power system, guarantee power grid security, and " five is anti-" is extremely crucial.So-called " five is anti-" is meant: 1, prevent the wrong circuit breaker that divides, closes; 2, prevent that on-load from drawing, closing isolating switch; 3, prevent charged hanging ground-wire; 4, prevent to be with ground wire to close circuit breaker; 5, prevent mistakenly entering charged chamber.For a long time, " five anti-" rely on artificial subjective factors such as the working experience of operating personnel in the electric power system and sense of responsibility to guarantee, lacking corresponding techniques equipment means guarantees, on objective condition, the electric power system device therefor is of a great variety, operation item is numerous and diverse, the job site is widely distributed, condition of work differs, thereby cause artificial faulty operation, serious accident occurs repeatedly, and causes significant damage for production and people life, and its social influence, economic loss are difficult to calculate.
Summary of the invention
The objective of the invention is to solve above-mentioned " five is anti-" problem, provide a kind of electric power system " five is anti-" to use portable monitor.
The present invention realizes by the following technical solutions:
1, the security official uses computer to monitor write operation content---one group of sequential information that is operated the Radio Frequency ID card of equipment;
2, the electric power system operation is generally finished jointly by guardian and operator, and before the staff held monitor and comes the equipment of pre-operation, the guardian opened monitor.Monitor prompting " reading guardian ID card ", the guardian according to prompting with the nearly monitor of guardian ID sticker, read successfully after, monitor prompting " reading the ID card of pre-operation equipment ".The guardian reads ID card on the pre-operation equipment according to prompting with monitor, if pre-operation equipment and target device that the guardian checked do not meet, then monitor sends sound, light is reported to the police, and the text prompt of " pre-operation Device Errors " is arranged on the screen of monitor; If the device id card of pre-operation is consistent with target device ID card, then provide the text prompt of " allowing operation " on the display screen of monitor.Behind the monitor correct judgment, the operator operates this equipment, and behind the end of operation, operator's the nearly monitor of ID sticker, monitor reads successfully has " this handling safety finishes " literal to show on the display screen of back.Be equipped with the induction type electroscopic device, detect on the pre-operation equipment whether electricity is arranged, its result is presented on the display of monitor;
3, monitor is provided with the induction type electroscopic device, detects on the pre-operation equipment whether electricity is arranged, and its result is presented on the display screen of monitor;
4, monitor is provided with CPU, LCD, the data that storage, record, demonstration are correlated with;
5, monitor is provided with operation push-button, can finish the switch monitor, carries out self check, operation such as reset, empties;
6, monitor is provided with the RS232 interface, can link to each other with computer, carries out exchanges data, increases its unified centralized management function, makes the relevant operation orderly management of electric power system.
A kind of portable monitor for electrical system five-protection using comprises housing, charger, it is characterized in that:
A, be provided with Card Reader Unit, identification staff's ID card; The target device of identification beamhouse operation, the i.e. information button of pre-operation equipment;
Whether B, be provided with the electrical verification assembly, it is charged to predict pre-operation equipment;
C, be provided with CPU, gather, storage Card Reader Unit and electrical verification module data;
D, be provided with operation push-button, realize starting/close the monitor working power, operation such as carry out self check, reset, empty;
E, be provided with LCDs, display reminding information, recognition result, electrical verification result, operation result;
F, be provided with sound, visual alarm assembly, show whether the electrical verification result has electricity, whether the ID card discerns mistake;
G, be provided with the RS232 interface,, carry out exchanges data, utilize software that target device ID card is write monitor in order, read the content of monitor record, data are saved in database, build with the computer communication
Upright archives make operation note concentrated, clear, with convenient management and inquiry;
H, be provided with self-checking function, guarantee that monitor self operating state is good, the effect of playing supervision that can be correct.
Described Card Reader Unit is made up of RFID chip and antenna;
The used operating frequency of the present invention is 125kHZ;
The used working power of the present invention is direct current 12V.
Advantage of the present invention: portable monitor for electrical system five-protection using sophistication means, prevent misoperation, the present invention monitors accurately, the reliability height, processing ease, easy to use; Image data deposits computer in can set up database, convenient centralized management; Adopt the present invention, solved the operational issue because artificial factor may make the mistake from technical equipment, guarantee operating personnel according to corresponding rules executable operations, the accident of can fundamentally stopping takes place.The present invention can be widely used in power plant, electric substation, power supply administration and the staff of electricity consumption department and use, and the present invention has good market prospects, has good society and economic benefit.
Description of drawings
Fig. 1 is an outline drawing of the present invention.
Fig. 2 is a working procedure brief block diagram of the present invention.
Fig. 3 is that system of the present invention constitutes block diagram.
Fig. 4 is a high voltage electroscope assembly schematic block diagram of the present invention.
Fig. 5 is an electrical verification assembly voltage amplification circuit diagram.
Fig. 6 is a Radio Frequency ID card demodulator block diagram.
Fig. 7 is the information button internal frame diagram.
Fig. 8 is an information button demodulator work schematic diagram.
Fig. 9 is the Card Reader Unit circuit theory diagrams.
Figure 10 is the serial interface circuit schematic diagram.
Figure 11 is the typical data communication structure of RS-232.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is made and to further describe.
Portable monitor for electrical system five-protection using below also claims portable monitor or monitor.
1, Fig. 1 is an outline drawing of the present invention, antenna 2, operation push-button 3, measuring head 5, display screen 9, liquid-crystal display information 10, RS232 interface socket 11, charger socket 12 are arranged, described electrical verification assembly is a prior art, it constitutes as shown in Figure 4, the small-signal that measuring head 5 input circuits obtain, after voltage multiplying rectifier, voltage amplification and filtering, deliver to comparison circuit.The output control oscillation circuit of comparison circuit.The output pulse of oscillating circuit is delivered to sound, light crossing-signal through CPU, and alarm sends buzzing and flash signal by certain frequency and wavelength.Consider that tested electric field signal is little in the spacing in space, thereby the resulting field energy of input circuit is also little, and comparison circuit need be under the signal of certain amplitude could operate as normal, so after voltage doubling rectifing circuit, be provided with the one-level voltage amplifier circuit, as shown in Figure 5, advance the CPU8 collection plate in the hope of obtaining bigger signal component output contact signal; The electrical verification result is presented on the display screen of monitor, and promptly the literal of " not charged, as can to operate " or " equipment has electricity to operate " shows; Described high voltage electroscope assembly constitutes schematic diagram such as Fig. 4, by the ID card 1 of measuring head 3 near target device or operating personnel, it is information button, by demodulator 4 signal is delivered to CPU, carrying out relevant data handles, monitor adopts RFID chip and antenna 2, the RFID chip is to adopt the read/write mode, antenna 2 couplings between Radio Frequency ID card 1 and the monitor are inductance coupling high patterns, transformer model, the coupling that Radio Frequency ID card 1 antenna 2 and monitor antenna are 2 adopts the close coupling assembly system, and described information button is a kind of passive stainless packaging part, has waterproof, antimagnetic, shockproof, the device of high temperature resistant and low temperature, its type is an EM the core of the card sheet.Portable monitor working procedure brief block diagram is that portable monitor is assigned operational order by master computer as shown in Figure 2; Monitor at first will be checked operating personnel ID card, monitor prompting " reading guardian ID card ", and checked result is not inconsistent, and " cannot on dutyly operate " text prompt is then arranged on display screen, and confirmation then has " allowing operation " text prompt; Next check target device ID card, monitor prompting " reading pre-operation device id card ", checked result is not inconsistent, " pre-operation Device Errors " text prompt is then arranged on display screen, sound, visual alarm of while, confirmation then has " allow operation, finish read operation device id card " text prompt; Next whether test-target equipment is charged, and " equipment has electricity, cannot operate " text prompt as charged, is arranged, and sound, visual alarm is not charged simultaneously, and " equipment is not charged can be operated " text prompt is then arranged; Next instruct project operation, as using mobile phone, adopt operation keys input operation content and operating result, for strengthening management, this content and result will import master computer; Portable monitor is started working power and is carried out software configuration by operation keys 3, carries out associative operation, and the display employing is labeled as 10 liquid crystal LCD numeral, literal demonstration.System of the present invention constitutes calcspar such as Fig. 3, is provided with RS232 interface socket 11, charger socket 12, and related device includes:
Radio Frequency ID card 1
By the inverse signal that is coupled to antenna, through impedance matching, diode detection, obtain the 847kHz subcarrier, pass through shaping, filtering and amplification again after, insert the PSK demodulation module, demodulate the digital signal of 106Kbit/8, send into single-chip microcomputer and handle.Figure 6 shows that the demodulation block diagram.The purpose of PsK demodulation has two: one, and speed is changed into 106Kbit/s by 847kHz, and the 2nd, the PsK signal of phase overturn is converted into 0,1 digital signal.
Information button
Operation principle is: the radio wave reception reading of data that plug-in reader sends by receiving label.Radio system has active system and passive system.Modal is Passive RFID system, and plug-in reader outwards sends the enciphered data carrier signal through transmitting antenna, forms electromagnetic field around it; Electronic tag enters the microchip circuit that obtains behind the transmitting antenna working region in the energy activated label from electromagnetic field, chip is changed electromagnetic wave, sends to plug-in reader then, and plug-in reader converts it to related data.Thereby the control calculator just can be handled these data and manage control.And in the active rfid system, the electronic tag that battery is housed can only be movable in effective range.The radio circuit that the internal circuit of information button is made up of the radio communication IC and the antenna 2 of sesame seed size, and with resin, paper even textile with its encapsulation and print and form, as Fig. 7.It is exchange message between media and the read-write equipment with the electromagnetic wave.The numbering of each information button is unique, can't imitate or forge; Need not contact.
Plug-in reader 4
It is by transmitter, and receiving instrument, control module and transceiver are formed.Its operation sequence mainly sends subprogram, Data Receiving interrupt service subroutine, decoding error correction subprogram, RS one 232 communicator programs and EEPROM read data subprogram by communication handshake subprogram, data and forms.Major function is the foundation and the inquiry of the reading of data, database and function is set.By reading of data module, deal with data module, inquire about and be provided with module and form.And require good fault-tolerance and repetitive operation.
(1) reading of data module.It is finished by background thread, and thread is created when program running.It is made up of initialization and reading of data two parts.During read data, check the serial ports buffering area at regular intervals, the non-timed reading of data also leaves in the program buffer, and this buffering area distributes when program initialization.
(2) deal with data module.Timing trace routine buffering area, the non-timed read data is after treatment in the real time input data storehouse.Information button and plug-in reader work schematic diagram such as Fig. 8.
1D card Card Reader circuit
Native system adopts the U2270B base station ic U2270B right and wrong contact ID card of Atmel company to realize the nucleus module of radio communication, also is the key interface chip of card reader read-write ID card.It is modulated the data in the transmission buffer area according to the setting of the register in the transponder and obtains sending signal, and by Coil1, Coil2 pin driven antenna sends with form of electromagnetic wave.During read data.Signal is sent into the Input pin by antenna-matching circuit, and U2270B sends into signal microcontroller again and carries out demodulation process.Fig. 9 is the Card Reader circuit theory diagrams.Wherein resistance 470K and electric capacity 1.5nF form frequency selection circuit.Remove high frequency and low frequency, allow 100～125KHz frequency pass through, constitute demodulator circuit jointly with the U2270B internal circuit; Antenna and internal drive circuits constitute 125KHz electromagnetic field emissions circuit, transmission of power: 4 IN4148 diodes are formed feedback circuit and are come stabilized frequency; Single IN4148 diode carries out signal shaping: resistance 43K and 68K regulate tranmitting frequency.
Man-machine interface is communicated by letter with the system machine, and being used for transmitting data to system's machine provides convenience for the centralized management of equipment.Typical data communication structure such as Figure 11 of RS-232.Because this communication line is longer, therefore be necessary to adopt photoelectricity to isolate, with anti-tampering.When system's machine have the communication information reach when protection DSR end one state level by light every the INT0 end application serial break in service that connects CPU, receiving system machine information or transmit protection information during respective interrupt to system's machine.For anti-interference, the man-machine interface of serial communication is communicated by letter with the system machine, is used for transmitting data to system's machine, for the centralized management of equipment provides convenience, and matches with the integrated automation of transformation stations.Its hardware circuit as shown in figure 11.
Software section:
Write for user's operation interface program with VB because can make so simple to operate, friendly interface. be convenient to data query and use the MSComm control.
The data-interface part:
Software uses the MSComm control, realizes serial communication, and it provides the short-cut method of USB (universal serial bus) transceive data for application program, supports event-driven method and querying method.Write the OnComm incident of MSComm control, realize seizure serial data.Mistake or incident reflect serial ports by the CommEvent property value in this incident before, as CommEvent=2, expression receives data.Utilize Input, the Output method of MSComm control, character string or binary data are read and write.Work as sign off, the attribute of MSComm.portopen is put vacation, close serial ports.
Hardware: monitor is furnished with the RS232 interface, can be connected with computer, carries out exchanges data.By software systems content of operation is write monitor.
Monitor is furnished with and is labeled as 11 RS232 interface, can be connected with master computer, carries out exchanges data, and system writes monitor to content of operation by configuration software.
The used power supply of portable monitor for electrical system five-protection using is a direct current 12V powered battery, and battery adopts the high-performance lithium battery, can be charged by charger, as the cell-phone charging mode.When power shortage, provide " power shortage " text prompt on the display screen.
Claims (3)
1, a kind of portable monitor for electrical system five-protection using comprises housing, charger, it is characterized in that:
A, be provided with Card Reader Unit, identification staff ID card, the ID card of the target device of identification beamhouse operation;
B, be provided with the electrical verification assembly, predict must operating equipment whether charged;
C, be provided with CPU (8), gather and storage Card Reader Unit data and electrical verification module data;
D, be provided with operation push-button (3), associating CPU realizes starting/close the monitor working power, carries out self check, resets and empties operation;
E, be provided with LCD display (9), display reminding information, recognition result, electrical verification result and operation result;
F, be provided with sound, visual alarm, show that the electrical verification result is whether charged and whether the identification of ID card is wrong;
G, be provided with the RS232 interface,, carry out exchanges data, utilize configuration software that content of operation is write monitor, read the content of monitor record, data are saved in database, set up archives with the master computer communication.
According to the described portable monitor for electrical system five-protection using of claim 1, it is characterized in that 2, described Card Reader Unit is made up of RFID chip and antenna (2), and comprises demodulator (4).
According to the described portable monitor for electrical system five-protection using of claim 1, it is characterized in that 3, the used power supply of portable monitor for electrical system five-protection using is direct current 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100170690A CN100452263C (en) | 2006-07-30 | 2006-07-30 | Portable monitor for electrical system five-protection using |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100170690A CN100452263C (en) | 2006-07-30 | 2006-07-30 | Portable monitor for electrical system five-protection using |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101022059A CN101022059A (en) | 2007-08-22 |
| CN100452263C true CN100452263C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100170690A Expired - Fee Related CN100452263C (en) | 2006-07-30 | 2006-07-30 | Portable monitor for electrical system five-protection using |
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| Country | Link |
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| CN (1) | CN100452263C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195246B (en) * | 2010-03-18 | 2013-11-06 | 海盐县供电局 | Controller for using site grounding wire and method for controlling site grounding wire |
| CN112055047B (en) * | 2020-07-29 | 2021-07-13 | 西安交通大学 | Data communication method based on publishing and subscribing for intelligent coal-fired power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034734U (en) * | 1988-03-31 | 1989-03-22 | 张维清 | Five accidents prevention locking device for power switch box |
| EP1382973A1 (en) * | 2002-07-19 | 2004-01-21 | Thomson Licensing S.A. | Method and test adapter for testing an appliance having a smart card reader |
| CN2615672Y (en) * | 2003-04-15 | 2004-05-12 | 张文 | Hand-held graphic digital universal meter |
| CN1553867A (en) * | 2001-10-31 | 2004-12-08 | ��������ķ������ | Tire pressure monitoring system |
-
2006
- 2006-07-30 CN CNB2006100170690A patent/CN100452263C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2034734U (en) * | 1988-03-31 | 1989-03-22 | 张维清 | Five accidents prevention locking device for power switch box |
| CN1553867A (en) * | 2001-10-31 | 2004-12-08 | ��������ķ������ | Tire pressure monitoring system |
| EP1382973A1 (en) * | 2002-07-19 | 2004-01-21 | Thomson Licensing S.A. | Method and test adapter for testing an appliance having a smart card reader |
| CN2615672Y (en) * | 2003-04-15 | 2004-05-12 | 张文 | Hand-held graphic digital universal meter |
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|---|---|
| CN101022059A (en) | 2007-08-22 |
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Granted publication date: 20090114 Termination date: 20120730 |