Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of control instruction transmission methods for dispatching of power netwoks.
The present invention is achieved by the following technical programs.
A kind of control instruction transmission method for dispatching of power netwoks provided by the invention, it is characterised in that including following stepSuddenly：
Step 1, instruction send staff and control instruction are carried out text input formation text in power grid control terminalInstruction, and des encryption is carried out to the text inputted by power grid control terminal, it then carries out CRC check and forms CRC data packet；
Step 2, power grid control terminal forms digital and analogue signals after CRC data packet is carried out digital-to-analogue conversion, and passes through RS232Serial ports will be formed by digital and analogue signals and be converted to voice signal；
Step 3 will be formed by voice signal by cable modem and be sent to communication base station by cable, thenReceived voice signal is sent on the hand-held intelligent terminal of site operation personnel by communication base station；
Step 4, the hand-held intelligent terminal of site operation personnel turn voice signal progress digital-to-analogue after receiving voice signalIt changes, is decrypted after being reduced to CRC data packet, then convert thereof into text information and shown, finally by site operation personnelThe operation at scene is completed according to text instruction.
Further, in the step 2, after power grid control terminal forms digital and analogue signals, by RJ-11 interface by digital-to-analogueSignal is converted to voice signal.
Further, the hand-held intelligent terminal of site operation personnel is equipped with unique communicating number, communication base station carry out soundSound signal is sent when sending according to unique communicating number.
Further, in the step 1, power grid control terminal carries out forming unique key when des encryption, and with addIt is fitted into CRC data packet after close one promoting menstruation CRC check of text information.
Further, in the step 4, when voice signal is decrypted in the hand-held intelligent terminal of site operation personnelVoice signal is first reduced to CRC data packet, then key is extracted from CRC data packet, then to being passed through in CRC data packetThe text information for crossing des encryption is decrypted, and obtains final text control instruction.
Further, the power grid control terminal is PC machine.
Further, the power grid control terminal, cable modem, communication base station and hand-held intelligent terminal connectionFor internal network, it is not connect with external interconnections network.
Further, in the step 3, voice signal is sent to communication base station by cable by voice scheduling platform.
The beneficial effects of the present invention are：Implementation through the invention turns voice signal to dispatching of power netwoks instruction textMode is transmitted, and the mode of text instruction is reduced at operator, is avoided power grid tradition and is referred to by voice deliveryThe risk for causing information to misinformate is enabled, the generation of accident is avoided, meanwhile, in the transmittance process of text instruction, text is addedClose, digital-to-analogue conversion is transmitted by cable, the exclusive contact method of base station and handheld device, hand-held intelligent terminal ciphertext data, andScheduling controlling instruction is presented to staff in a manner of text information, has both met the spy that dispatching of power netwoks cannot rely on outer netPoint in turn ensures the safety of dispatching of power netwoks instruction transmission, prevents Transmission system from being attacked by external network and instruction is caused to transmitThe generation of the problems such as mistake can need to use in the occasion using dispatch command, have good popularizing value various.
Specific embodiment
Be described further below technical solution of the present invention, but claimed range be not limited to it is described.
As shown in Figs. 1-2, a kind of control instruction transmission method for dispatching of power netwoks, it is characterised in that including following stepSuddenly：
Step 1, instruction send staff and control instruction are carried out text input formation text in power grid control terminalInstruction, and des encryption is carried out to the text inputted by power grid control terminal, it then carries out CRC check and forms CRC data packet；
Step 2, power grid control terminal forms digital and analogue signals after CRC data packet is carried out digital-to-analogue conversion, and passes through RS232Serial ports will be formed by digital and analogue signals and be converted to voice signal；
Step 3 will be formed by voice signal by cable modem and be sent to communication base station by cable, thenReceived voice signal is sent on the hand-held intelligent terminal of site operation personnel by communication base station；
Step 4, the hand-held intelligent terminal of site operation personnel turn voice signal progress digital-to-analogue after receiving voice signalIt changes, is decrypted after being reduced to CRC data packet, then convert thereof into text information and shown, finally by site operation personnelThe operation at scene is completed according to text instruction.
Further, in the step 2, after power grid control terminal forms digital and analogue signals, by RJ-11 interface by digital-to-analogueSignal is converted to voice signal.
Further, the hand-held intelligent terminal of site operation personnel is equipped with unique communicating number, communication base station carry out soundSound signal is sent when sending according to unique communicating number.
Further, in the step 1, power grid control terminal carries out forming unique key when des encryption, and with addIt is fitted into CRC data packet after close one promoting menstruation CRC check of text information.
Further, in the step 4, when voice signal is decrypted in the hand-held intelligent terminal of site operation personnelVoice signal is first reduced to CRC data packet, then key is extracted from CRC data packet, then to being passed through in CRC data packetThe text information for crossing des encryption is decrypted, and obtains final text control instruction.
Further, the power grid control terminal is PC machine.
Further, the power grid control terminal, cable modem, communication base station and hand-held intelligent terminal connectionFor internal network, it is not connect with external interconnections network.
Further, in the step 3, voice signal is sent to communication base station by cable by voice scheduling platform.
The present invention is based on power grid OMS system in the case where not accessing external network, realizes the accurate transmitting-receiving of dispatching of power netwoks instruction,Specific implementation process is as follows：
When sending instruction, instruction input terminal computer (i.e. power grid control terminal) will be implemented by artificial mode,CRC data packet is generated by des encryption by computer, digital and analogue signals are converted to by language by RS232 serial ports or RJ-11 interfaceSound signal.
In dispatch command encryption, in the way of DES symmetric cryptography, the characteristics of cipher mode is that enciphering rate is fast,The composition of password adds sending time minute to form by receiving device sequence number, generates CRC (cyclic redundancy check) check code, withGuarantee the integrality of transmitted data packet, to determine that data will not lose, then passes through RS232 serial ports or RJ-11 interfaceDigital and analogue signals are converted into voice signal, then carry out the transmission process of voice signal.
It instructs in transmission process, the transmitting voice signal that dispatching of power netwoks terminal issues to cable modem or voiceDispatching desk is sent to communication base station by cable run mode, and is sent in handheld device by exclusive number.OperatorHand-held intelligent terminal can be mobile phone or tablet computer.
Instruction with transmitting voice signal during transmitting voice signal to cable modem or voice scheduling platformIn, pulse signal is converted to digital signal, is transferred in communication base station by communication cable, communication base station and staff's handIn handheld device contacted using exclusive number, pass through the special biography between communication cable and communication base station and handheld deviceMode is passed, the requirement of outer net cannot be connected by meeting dispatching of power netwoks, meet the safety of instruction transmitting.
The reception of instruction is that uniquely corresponding communicating number carries out transmission reception with hand-held intelligent terminal by communication base station,The object for guaranteeing information transmission is not in mistake.
Conversion display can be decrypted in instruction decryption acquisition process by the decryption system built in hand-held intelligent terminal.
Further, it is also possible to install a corresponding software, the instruction for will receive in hand-held intelligent terminalDecryption conversion, the hand-held intelligent terminal machine code that each operator uses be it is unique, when hand-held intelligent terminal receive fromAfter the instruction of base station transmission, software obtains the voice signal of encryption automatically, and opposite with encryption to speech signal progress is decryptedJourney, the instruction text after decryption show operator in a manner of short message, and operator requires implementation according to instruction.
In entirely instruction transmission process, text instruction, by pulse encrypted transmission, is met by being converted to phonetic orderThe security requirements of power grid built-in command transmission meet the requirement of power grid instruction transmission intermediate equipment and medium, in transmission processIn, the danger lost and stolen by people will not can occur as File Transfer for instruction, and simple File Transfer is in transmission speedIt is had certain disadvantages in encryption, is not suitable for the efficient of electrical grid transmission requirement, safety.
The present invention is transmitted by way of turning voice signal to dispatching of power netwoks instruction text, and at operator alsoOriginally it was the mode of text instruction, and avoided the risk that power grid tradition causes information to misinformate by voice delivery instruction, avoid accidentGeneration, meanwhile, in the transmittance process of text instruction, text is encrypted, digital-to-analogue conversion is transmitted by cable, base stationWith the exclusive contact method of handheld device, hand-held intelligent terminal ciphertext data, and scheduling controlling is referred in a manner of text informationOrder is presented to staff, both meets the characteristics of dispatching of power netwoks cannot rely on outer net, in turn ensures dispatching of power netwoks instruction transmissionSafety prevents Transmission system from being attacked and being caused the generation for the problems such as instructing error of transmission by external network, can be in various needsUsing using in the occasion of dispatch command, has good popularizing value.