CN109639316A - A kind of network communicating system of nonpolarity energy and information transmitting multiplexing - Google Patents

A kind of network communicating system of nonpolarity energy and information transmitting multiplexing Download PDF

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Publication number
CN109639316A
CN109639316A CN201811598686.3A CN201811598686A CN109639316A CN 109639316 A CN109639316 A CN 109639316A CN 201811598686 A CN201811598686 A CN 201811598686A CN 109639316 A CN109639316 A CN 109639316A
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CN
China
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unit
signal
energy
transmission
nonpolarity
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CN201811598686.3A
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Chinese (zh)
Inventor
张金生
吴勇
杨阳
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西安朗山电子科技有限公司
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Priority to CN201811598686.3A priority Critical patent/CN109639316A/en
Publication of CN109639316A publication Critical patent/CN109639316A/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69Spread spectrum techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B3/00Line transmission systems
    • H04B3/54Systems for transmission via power distribution lines
    • H04B3/544Setting up communications; Call and signalling arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload

Abstract

The present invention relates to the network communicating systems of a kind of nonpolarity energy and information transmitting multiplexing, it is made of cable, bus control device and end user communication device, bus control device includes the first transmission unit, the first receiving unit, the first signal modulation unit, the first signal demodulation unit, the first spectrum-spreading unit, the first despread unit, the first encryption unit, the first decryption unit, feedback error checking unit, first control unit and power supply;End user communication device includes the second transmission unit, the second receiving unit, second signal modulation unit, second signal demodulating unit, the second spectrum-spreading unit, the second despread unit, the second encryption unit, the second decryption unit, the second control unit, impedance matching unit, feedback unit and energy acceptance unit;Solves the safety of the reliability, traffic rate and information transmission of priming system large-scale network-estabilishing.It is suitble to communicate and need the electric initiating explosive device network communication of high-speed response in the large-scale network-estabilishing of digital and electronic detonator field medium-length hole blasting.

Description

A kind of network communicating system of nonpolarity energy and information transmitting multiplexing

Technical field

The present invention relates to priming system and use the security protection technology field of priming system, such as digital electric detonator, substitute Capsule and aircraft rail control system, and in particular to a kind of network communicating system of nonpolarity energy and information transmitting multiplexing.

Background technique

Priming system is the driving source of various explosive wastewater systems, the performance and success or failure of its direct decision systems of control, electronics Qualitative leap occurs for change, its performance of the priming system of networking and safety, is the mainstream of novel priming system.

Currently, the programmable digital and electronic detonator electrically connected, has essential safety, facilitates network detection and scene editor The advantage of blasting parameter can be realized accurate explosion.However, existing network system, is communicated using single-ended signal, signal distortion Seriously, be easy to be interfered, be not suitable with large-scale network-estabilishing or high-speed transfer data, specific manifestation in the following areas:

1, some researchs also use differential received on electric detonator and electric current loop is sent, but differential received route is multiple It is miscellaneous, it simple electric current loop the problems such as signal conformance is poor in a network, also needs to be further improved.

2, the networking of digital and electronic detonator needs relatively high efficiency, and the impedance matching of network wishes to adaptively solve.

3, many information of digital and electronic detonator can not repeat to send in transmitting, for example, fuzing information is because there is synchronization It is required that information is the forms of broadcasting, corresponding number of nodes is huge, hundreds of or even up to ten thousand, does not allow a reception occur Mistake, single cyclic code error control mechanism are unable to satisfy requirement.

4, digital and electronic detonator requires user to be had to when in use with the legitimacy used, and illegal use has not allowed Quick-fried, single cipher mechanism has security breaches in the transmission.

5, colliding part Impact energy can be effectively absorbed using the various air bags of priming system, as protection requires to mention Height needs the air bag array constituted using multiple air bags, realizes disposition.But each air bag is required to a pair Control line, when needing dozens of air bag module, numerous control lines can control to system and bring problem.Therefore, this kind of system It needs to couple using bus mode, to facilitate wiring.Meanwhile the bidirectional transfer of information of high speed is needed, to meet real-time response It needs.Similar problem also appear in it is other need on the priming system array apparatus that control, as aircraft rail control system, Various array protection air bags etc..

6, this kind of system also needs the reliable downlink command transmission of high speed, it is especially desirable to the information that end-on is received by There is self-reparing capability when interference.

7, intrinsically safe explosion proof occasion, the occasion of the limited space of many terminals, many inconvenient uses are needed many Battery powered occasion needs efficient energy transmission and information to transmit multiplexing.

8, special, polar requirement is not allow in the input of many occasion terminals, such as digital and electronic detonator and some Use environment has intrinsic safety requirements, needs long-range plug-in equipment.

Therefore, a kind of full duplex communication system of simple and reliable nonpolarity energy information multiplexing is studied, it appears particularly important.

Summary of the invention

Present invention aims at provide the network communicating system of a kind of nonpolarity energy and information transmitting multiplexing, the system Only the nonpolarity connection of each terminal is constituted network communicating system, highly reliable full duplex both may be implemented with two connecting lines Communication and energy transmission.

In order to realize that above-mentioned task, the present invention take following technical solution:

A kind of network communicating system of nonpolarity energy and information transmitting multiplexing, which is characterized in that by cable, bus marco Device and end user communication device composition, in which:

The bus control device includes the first transmission unit, the first receiving unit, the first signal modulation unit, One signal demodulation unit, the first spectrum-spreading unit, the first despread unit, the first encryption unit, the first decryption unit, feedback error detection list Member, first control unit and power supply;Wherein:

First control unit is connected with power supply, and first control unit is sequentially connected the first spread spectrum list by the first encryption unit Member, the first signal modulation unit, the first transmission unit, and be connected by the first transmission unit with cable;

First transmission unit also pass through the first receiving unit be sequentially connected the first signal demodulation unit, the first despread unit and First decryption unit, and be connected by the first decryption unit with first control unit;

First signal modulation unit connection feedback error checking unit, the first signal demodulation unit also with feedback error checking unit phase Even, feedback error checking unit is connected with first control unit, and first control unit is also connected with the first signal modulation unit;

The end user communication device includes the second transmission unit, the second receiving unit, second signal modulation unit, Binary signal demodulating unit, the second spectrum-spreading unit, the second despread unit, the second encryption unit, the second decryption unit, the second control are single Member, impedance matching unit, feedback unit and energy acceptance unit, in which:

Cable is connected with the second receiving unit, and the second receiving unit is sequentially connected second signal demodulating unit, the second solution Expand unit, the second decryption unit, and is connected by the second decryption unit with the second control unit;Second control unit also passes through Second encryption unit is sequentially connected the second spectrum-spreading unit, second signal modulation unit, the second transmission unit and energy acceptance unit, And it is connected by energy acceptance unit with cable;

Second control unit also passes through matching unit and is connected with energy acceptance unit;

The second signal demodulating unit also passes through feedback unit and is connected with the second transmission unit, and feedback unit is also with Two control units are connected.

According to the present invention, the cable is two any one parallel conducting wires.

Further, in bus control device, first transmission unit is a H bridge or differential driver, institute The first receiving unit stated is any current sense circuit.

Preferably, in end user communication device, second transmission unit is a constant-current pulse generator, described Second receiving unit can be polarity identification circuit, difference channel isoequilibrium receives circuit.

Preferably, the impedance matching unit described in end user communication device can adaptively be adjusted according to network size.

Preferably, in end user communication device, the energy acceptance unit is a bridge switching circuit, energy transmission By the continually changing signal of polarity DC power supply can be transformed into energy acceptance unit.

Preferably, first spectrum-spreading unit and the second spectrum-spreading unit are all made of forward error correction mode or information redundancy side Formula spread spectrum, first despread unit and the second despread unit are all made of decoding or voting formula restores information.

Preferably, first encryption unit and the second encryption unit are using any cipher key pair information encryption;It is described First decryption unit and the second decryption unit are using any cipher key pair information decryption.

Preferably, the first signal modulation unit uses pulse width modulation mode to send the code of " 0 " and " 1 ", and second Signal demodulation unit demodulates the code of " 0 " and " 1 " by the identification to pulsewidth;The second signal modulation unit uses electric current Ring mode sends the code of " 0 " and " 1 ", and first signal demodulation unit is by demodulating " 0 " and " 1 " to current signal identification Code.

During first transmission unit sends information, the second transmission unit sends return path signal, Mei Gezhou simultaneously Different electric current loop pulsewidths indicates the code of " 0 " and " 1 " in phase.

The network communicating system of nonpolarity energy of the invention and information transmitting multiplexing, bring technological innovation are:

(1) circuit and bus marco dress are received by the polarity identification circuit of end user communication device or difference channel isoequilibrium The H-bridge drive circuit or differential driver set are realized full balance mode transmission of downlink signal, are transmitted by constant current pulse mode Uplink signal, circuit structure are simpler than general full balance mode, have better transmission characteristic than general electric current loop.

(2) network size, communication distance, transmission rate and signal anti-interference ability, improve 1 to 2 than single-ended signal mode A order of magnitude.

(3) uplink and downlink signals simultaneous transmission mechanism makes system full-duplex communication rate improve nearly 1 times.

(4) transmission error complex controll mechanism improves the signal-to-noise ratio of signal transmission and the robustness of data link, than list Single kind of cyclic code error-detection mechanism communication errors control ability improves decades of times.

(5) by adaptive network impedance matching, network EMI Electromagnetic Compatibility is improved.

(6) data encryption mechanism ensure that the information security of network transmission.

(7) the energy transmission mechanism in complete period, improves the power supply capacity to terminal.

(8) OSI Reference Model simplified constructs information architecture good compatibility.

The network communicating system of nonpolarity energy of the invention and information transmitting multiplexing, improves the net of electric initiating explosive device network The safety of network scale, traffic rate, communication reliability and information transmission.It is suitble to number detonator field medium-length hole Large-scale blasting Network communication and high speed priming system antenna array control.

Detailed description of the invention

Fig. 1 is the theory structure block diagram of the network communicating system of nonpolarity energy and information transmitting multiplexing of the invention;

Fig. 2 is the signal graph of the network communicating system of nonpolarity energy and information transmitting multiplexing of the invention;

Fig. 3 is the message structure schematic diagram in the present invention;

Fig. 4 is application example block diagram of the invention;

Fig. 5 is bus control device program flow diagram of the invention;

Fig. 6 is end user communication device program flow diagram of the invention.

Label therein respectively indicates: 0, bus control device, 1, cable, 2, end user communication device;

01, the first transmission unit, the 02, first receiving unit, the 03, first signal modulation unit, the demodulation of the 04, first signal are single Member, the 05, first spectrum-spreading unit, the 06, first despread unit, the 07, first encryption unit, the 08, first decryption unit, 09, feedback inspection Wrong unit, 010, first control unit, 011, power supply;

21, the second transmission unit, the 22, second receiving unit, 23, second signal modulation unit, 24, second signal demodulation list Member, the 25, second spectrum-spreading unit, the 26, second despread unit, the 27, second encryption unit, the 28, second decryption unit, the 29, second control Unit processed, 210, impedance matching unit, 211, feedback unit, 212, energy acceptance unit.

X in Fig. 2 indicates no data.

Label in Fig. 4 respectively indicates: 3, Blasting Control device (or safe automobile air bag control unit ACU), 31, encoder (sensing control unit), 4, intelligent electric detonator (or air bag module), 41, electric igniter intelligence interface, 42, detonator (or gas Capsule).

To make technological means of the invention, feature, reaching purpose and effect is easy to understand, with reference to the accompanying drawing and tool The present invention is described in further detail for the embodiment of body.

Specific embodiment

As shown in Figure 1, the present embodiment provides the network communicating system of a kind of nonpolarity energy and information transmitting multiplexing, by electricity Cable 1, bus control device 0 and end user communication device 2 form, in which:

The bus control device 0 includes the first transmission unit 01, the first receiving unit 02, the first signal modulation list First 03, first signal demodulation unit 04, the first spectrum-spreading unit 05, the first despread unit 06, the decryption of the first encryption unit 07, first Unit 08, feedback error checking unit 09, first control unit 010 and power supply 011;Wherein:

First control unit 010 connects power supply 011, and first control unit 010 is sequentially connected by the first encryption unit 07 First spectrum-spreading unit 05, the first signal modulation unit 03, the first transmission unit 01, and pass through the first transmission unit 01 and cable 1 It is connected;

First transmission unit 01 is also sequentially connected the despreading of the first signal demodulation unit 04, first by the first receiving unit 02 Unit 06 and the first decryption unit 08, and be connected by the first decryption unit 08 with first control unit 010;

First signal modulation unit 03 connection feedback error checking unit 09, the first signal demodulation unit 04 also with feedback error detection list Member 09 is connected, and feedback error checking unit 09 is connected with first control unit 010,

First control unit 010 is also connected with the first signal modulation unit 03;

The cable 1 can be two any one parallel conducting wires, such as twisted pair, twin-core parallel line;The cable 1 will be total Thread control device 0 links together with multiple terminal units 2.

The end user communication device 2 includes the second transmission unit 21, the second receiving unit 22, second signal modulation list First 23, second signal demodulating unit 24, the second spectrum-spreading unit 25, the second despread unit 26, the decryption of the second encryption unit 27, second Unit 28, the second control unit 29, impedance matching unit 210, feedback unit 211 and energy acceptance unit 212, in which:

Cable 1 is connected with the second receiving unit 22, the second receiving unit 22 be sequentially connected second signal demodulating unit 24, Second despread unit 26, the second decryption unit 28, and be connected by the second decryption unit 28 with the second control unit 29;Second Control unit 29 is also sequentially connected the second spectrum-spreading unit 25, second signal modulation unit 23, second by the second encryption unit 27 Transmission unit 21 and energy acceptance unit 212, and be connected by energy acceptance unit 212 with cable 1;

Second control unit 29 is also connected by matching unit 210 with energy acceptance unit 212;

Second signal demodulating unit 24 is also connected by feedback unit 211 with the second transmission unit 21, feedback unit 211 Also it is connected with the second control unit 29.

In the present embodiment, the cable 1 is two any one parallel conducting wires, such as twisted pair.The connection side of cable 1 Formula can be daisy chain type or bus type, and the bus type is by the on line of bus control device 0 and end user communication device 2 with simultaneously Connection mode connects in the both threads of cable 1.

In bus control device 0, first transmission unit 01 is a H bridge or differential driver, described One receiving unit 02 is any current sense circuit.

In end user communication device 2, second transmission unit 21 is a constant-current pulse generator, described second Receiving unit 22 is polarity identification circuit or any balance reception circuit of difference channel.

The impedance matching unit 210 described in end user communication device 2 can adaptively be adjusted according to network size.

In end user communication device 2, the energy acceptance unit 212 is a bridge switching circuit, and energy transmission is logical DC power supply can be transformed into energy acceptance unit 212 by crossing the continually changing signal of polarity.

First spectrum-spreading unit 05 and the second spectrum-spreading unit 25 are all made of forward error correction mode or information redundancy mode Spread spectrum, first despread unit 06 and the second despread unit 26 are all made of decoding or voting formula restores information.

First encryption unit 07 and the second encryption unit 27 are using any cipher key pair information encryption;Described first Decryption unit 08 and the second decryption unit 28 are using any cipher key pair information decryption.

The first signal modulation unit 03 uses pulse width modulation mode to send the code of " 0 " and " 1 ", second signal solution Unit 24 is adjusted to demodulate the code of " 0 " and " 1 " by the identification to pulsewidth;The second signal modulation unit 23 uses electric current loop Mode sends the code of " 0 " and " 1 ", and first signal demodulation unit 04 is by demodulating " 0 " and " 1 " to current signal identification Code.

In the present embodiment, in bus control device 0, the first transmission unit 01 is a H bridge or differential driver, described The first receiving unit 02 be preferably any current sense circuit.

Second transmission unit 21 can be any one constant-current pulse generator, has than general electric current loop and preferably passes Defeated characteristic;

Second receiving unit 22 is polarity identification circuit, receives the signal of downlink by experiencing the change in polarity of bus, Complicated difference amplifier can be saved;

The feedback unit 211 be one can be by the bit signal of downlink, uplink returns after feedback processing unit;

The impedance matching unit 210 is a controllable impedance unit, can be with dynamic regulation impedance loop.

In the inside of the first, second control unit (010,29), it is provided with the information control and information of full-duplex communication With the transfer program of energy, which is that a kind of energy in complete period sends mechanism, and the bipolarity alternating way of output does not have pulse Energy blackout in period.Wherein:

The program circuit of bus control device 0 is as shown in Figure 5:

For downlink signal, processing data are carried out first, and by data preparation at data frame, then the data of processing are added It is close, spreading code is added, cyclic redundancy check is added, frame head and mark is added, carries out the modulation of signal, then sends bit, carries out It sends.

Feedback model is option, for certain special occasions, first by whether selecting the judgement of feedback model, such as Fruit is then to be stored in the bit that this period sent out, in next bit sending cycle, by the response bit received, into The whether equal judgement of row bit is stored in error log if bit is unequal, and a frame data, which have sent rear judgement, is No there are reception errors, if so, returning to the modulated signal stage, then retransmit bit, if it is not, being free from mistakes, send out Send EP (end of program).

Bit is received into program is received for uplink signal, demodulated signal is carried out, removes frame head and mark, carry out CRC check is de-spread, and decryption handles data, receives EP (end of program).

The program circuit of end user communication device 2 is as shown in Figure 6:

It for downlink signal, is received first, receives bit, demodulated signal removes frame head and mark, carries out CRC Verification is de-spread, and decryption handles data, is terminated.Wherein, the judgement of selection feedback model is made whether to demodulated signal, if It is, to the bit received, to be modulated signal, receives the period in next bit, send back the bit answered.

For uplink signal, by data preparation at data frame, then to data encryption, spread spectrum is added in first processing data Cyclic redundancy check is added in code, and frame head and mark is added, carries out the modulation of signal, then sends bit, sent.

In the information control of the full-duplex communication and information and the transfer program of energy, the letter of full balance mode is utilized Number realize downlink signal transmission, utilize electric current ring signal realize uplink signal transmission.

Using downlink signal transmission mode, than conventional single ended voltage mode on communication distance and traffic rate, improve Tens to hundred times.The uplink signal transmissions mode, the circuit than conventional full balance mode are simple and reliable.

Uplink and downlink signals transmission carries out simultaneously, simultaneously with upper in each downstream bits signal in the cable of connection Capable bit signal.As a result, the traffic rate of the nonpolarity energy and the network communicating system of information transmitting multiplexing obtains Promotion by about one time.

The information control of the full-duplex communication and information and the transfer program of energy also contain using spread spectrum, forward error correction With the multiplexing of transmission error control mechanism of feedback error detection, error control capability is the decades of times of general simple cyclic code mechanism.

It is additionally provided with and ensures information security in the information control of the full-duplex communication and information and the transfer program of energy Control, encryption mechanism is used to the information of transmission, than using cipher control safer merely.

Network impedance is additionally provided in the information control of the full-duplex communication and information and the transfer program of energy to match Method realizes that the Adaptive impedance matching of network, the back wave of uptake pathway improve network EMI Electro Magnetic Compatibility.

The nonpolarity energy of the present embodiment and the signal graph of the network communicating system of information transmitting multiplexing are as shown in Figure 2.

As shown in figure 3, the information control of the full-duplex communication and information and the transfer program of energy are using simplification OSI Reference Model, architecture are three layers: application layer, data link layer and physical layer, in which:

Application layer: application layer has carried out encryption or decryption process to the information of transmission, ensure that the safety of information;

Data link layer: including frame head, spread spectrum, error correction, encryption, data and postamble, using a kind of spread spectrum mode with before To the method for error correction (FEC), the ability of channel control error is improved, increases some redundancies letters by giving in transmission data sequence It ceases, the wrong symbol injected in data-transfer process, by timely correction, improves the robustness of data link, can expire in receiving end The important information reliable transmission of the one-to-many broadcast mode of foot needs.

Spread spectrum mode can be it is any, such as Direct-Spread.

Code system used in forward error correction (FEC) can be any one, as Hamming code, BCH code, convolutional code, Turbo code, RS code, triple module redundancy codes.

The data link layer solves the collision problem of multiple terminal upload datas, each terminal using bit-by-bit arbitration method There is a network ID, the smaller priority of network ID is higher, and the terminal for needing to upload data sends application, bus control device hair Out network ID inquire, inquire confirm by turn by turn, the terminal for issuing application is checked by turn to be responded, bus control device according to As a result, the application of sending receiving terminal allows to instruct, it is connected to the terminal upload information of instruction.

The frame head of data link layer can use the synchronous protocol of HDLC Bit Oriented, and postamble is added using (CRC) cyclic code Mark.

Physical layer: the mpsk signal transmission mechanism adaptively adjusted using transmission frequency, to adapt to heterogeneous networks scale It needs.The transmission of logical zero, " 1 " and " sky " is realized by different pulsewidths, such as: " 0 ", duty are indicated with duty ratio 30% " 1 " is indicated than 70%, and duty ratio 90% indicates " sky " no signal.

Different pulsewidths can use the edge of different signal level variations, such as: rising edge indicates frequency, failing edge It indicates pulsewidth, is also possible to the edge of identical signal level variation, such as: frequency or arteries and veins are indicated with rising edge or failing edge It is wide.

The mpsk signal transmission mechanism that transmission frequency adaptively adjusts is the pulsewidth modulation side that transmission frequency can be set Formula can be reduced in the remote transmission frequency of large scale network, and small-scale short-distance transmission frequency can be improved, can to obtain height Maximum communication rate under property.

The physical layer can feed back error detection mode using downstream signal reception side by turn in real time, for each of downlink signal Bit recipient responds in real time, in the signal that next bit downlink signal periodic feedback tieback receives, feedback signal and It is related to receive signal, bus control unit judges to transmit result based on the feedback signal.

Concrete application embodiment 1:

Referring to Fig. 1, Fig. 4, Fig. 5 and Fig. 6, using the network communicating system of nonpolarity energy and information transmitting multiplexing, connection One intelligent electric detonator system, the intelligent electric detonator system include Blasting Control device 3, intelligent electric detonator 4.

The Blasting Control device 3 passes through the network communication of nonpolarity energy and information transmitting multiplexing with intelligent electric detonator 4 The bus control device 0 of system couples with cable 1, and the Blasting Control device 3 includes encoder 31, encoder 31 and bus marco The first control unit 010 of device 0 couples;The intelligent electric detonator 4 includes Chinese patent (ZL201410009486.5) The electric igniter intelligence interface 41 and detonator 42, the intelligent electric detonator 4 can have n.

Electric igniter intelligence interface 41 is communicated with nonpolarity energy with the terminal of the network communicating system of information transmitting multiplexing Second control unit 210 of device 2 couples, and electric igniter intelligence interface 41 couples with detonator 42.

Downlink signal: encoder 31 edits the parameter of each detonator in blasting network, is sent to using relevant parameter as source code First control unit 010 enters application layer, and first control unit 010 encrypts source code by the first encryption unit 07, adds Code after close enters data link layer, and error correcting code and spreading code is added by the first spectrum-spreading unit 05, forms information frame and enters Frame head and postamble is added to information frame in first modulation unit 03, the first modulation unit 03, enters object by the first transmission unit 01 Layer is managed, the voltage signal of distinct pulse widths is converted into, voltage signal is passed into the second receiving unit 22 through cable 1, second receives list Enter data link layer after first 22 pairs of signal identifications, is sent into second signal demodulating unit 24, is gone through second signal demodulating unit 24 Fall frame head and postamble, demodulate information frame be sent into second signal despread unit 26, through the second despread unit 26 parse code into Enter application layer, be sent into the second decryption unit 28, the second decryption unit 28 solves source code, is sent into the second control unit 210, the second control Source code is sent into electric igniter intelligence interface 41 by unit 210 processed, and electric igniter intelligence interface 41 controls detonator 42.

Uplink signal: source code is sent into the second control unit 210 and enters application layer by electric igniter intelligence interface 41, and second adds Close unit 27 encrypts source code, and encrypted code enters data link layer, and error correction is added by the second spectrum-spreading unit 25 Code and spreading code form information frame and enter second signal modulation unit 23, and second signal modulation unit 23 adds frame to information frame Head and postamble enter the current signal that physical layer issues distinct pulse widths by the second transmission unit 21, energy acceptance unit 212, Cable 1 transmits signals to the first receiving unit 02 after first receiving unit 02 is to signal identification through the first transmission unit 01 and send Enter data road the first signal demodulation unit of floor 04, removes frame head postamble through the first signal demodulation unit 04 and demodulate information frame, send Enter the first despread unit 06, parse code through the first despread unit 06, into the first decryption unit of application layer 08, the first decryption Unit 08 solves source code and is sent into first control unit, and first control unit sends source code to encoder 31.

Uplink signal for feedback: after the second receiving unit 22 receives voltage signal, through second signal demodulating unit 24 demodulate bit, and bit is converted into current signal by second signal modulation unit 23, are passed through by the second transmission unit 21 Energy acceptance unit 212 issues, and cable 1 transmits a signal to the first transmission unit 01, and the first receiving unit 02 is to signal identification After be sent into the first signal demodulation unit 04, with the bit bit comparison that sends before after demodulation, error message is sent into the first control Unit 010,010 retransmission of information of first control unit.

Impedance matching: bus control device 0 determines match parameter according to network parameter, such as network size, communication distance, and Parameter is sent to detonator by downlink signal, starts impedance matching unit 210.

Transmission error control: for the fuzing information of transmission under conditions of being interfered, the information that detonator receives is wrong, always Thread control device 0 enables detonator to repair mistake, guarantees to execute in real time by the way that forward error correction technology is added.

Control to illegally using: the information by encryption transmitted on bus control device 0 improves and cracks difficulty.

Concrete application embodiment 2:

Continuing with referring to Fig. 1, Fig. 4, Fig. 5 and Fig. 6, encrypting and decrypting processing is not done in an application cut out.Using nonpolarity The network communicating system of energy and information transmitting multiplexing, connects an air bag start control device of vehicle, the automotive safety gas Capsule control system includes safe automobile air bag control unit 3 (ACU), air bag module 4, the safe automobile air bag control unit 3 Coupled with the bus control device 0 of the network communicating system of information transmitting multiplexing with cable 1 by nonpolarity energy, the automobile Air bag control unit 3 includes sensing control unit 31, and the first control of sensing control unit 31 and bus control device 0 is single Member 010 couples;The air bag module 4 includes electric igniter intelligence interface 41 described in Chinese patent (ZL201410009486.5) With air bag 42, the air bag module 4 can have n;

Electric igniter intelligence interface 41 is communicated with nonpolarity energy with the terminal of the network communicating system of information transmitting multiplexing Second control unit 210 of device 2 couples, and electric igniter intelligence interface 41 couples with air bag 42.

The air bag opened to needs sends the parameter opened, and air bag module 4 opens air bag 42 by required dynamics.Air bag mould Block 4 passes through return path signal, the result of passback 4 inspection of air bag module diagnosis.

Downlink signal: in the event of a collision accident, 31 sensing collision event of sensor control unit is sentenced by algorithm Source code, is sent to first control unit 010, source code is directly entered data link layer, passes through first by disconnected institute position to be protected Error correcting code is added in spectrum-spreading unit 05 and spreading code forms information frame, and frame head and postamble is added into the first modulation unit 03, passes through The voltage signal that information frame is converted into distinct pulse widths is entered physical layer by the first transmission unit 02, and cable 1 transmits voltage signal To the second receiving unit 22, enter data link layer to second signal demodulating unit 24 is sent into after signal identification, remove frame head and Postamble demodulates information frame, is sent into the second despread unit 26 and parses source code, is sent into the second control unit 210, and the second control is single Member 210 judges whether to issue the information of this module, if so, information, which is sent into electric igniter intelligence interface 41, controls air bag 42.

Similar example application is there are also very much, such as the electric initiating explosive device of rocket posture tracking controller, various high-speed responses Etc., it is numerous to list herein.

As known by the technical knowledge, the network communicating system of nonpolarity energy of the invention and information transmitting multiplexing, Ke Yitong The embodiment of other essence without departing from its spirit or essential feature is crossed to realize.Therefore, it embodiment disclosed above and answers With example, in all respects are merely illustrative, and are not limitation of the invention, all in technical side of the invention Made addition or amendment, are within the scope of protection of the invention on the basis of case.

Claims (10)

1. the network communicating system of a kind of nonpolarity energy and information transmitting multiplexing, which is characterized in that by cable (1), total line traffic control Device (0) processed and end user communication device (2) composition, in which:
The bus control device (0) includes the first transmission unit (01), the first receiving unit (02), the first signal modulation Unit (03), the first signal demodulation unit (04), the first spectrum-spreading unit (05), the first despread unit (06), the first encryption unit (07), the first decryption unit (08), feedback error checking unit (09), first control unit (010) and power supply (011);Wherein:
First control unit (010) is connected with power supply (011), first control unit (010) by the first encryption unit (07) according to The first spectrum-spreading unit of secondary connection (05), the first signal modulation unit (03), the first transmission unit (01), and list is sent by first First (01) is connected with cable (1);
First transmission unit (01) is also sequentially connected the first signal demodulation unit (04), the first solution by the first receiving unit (02) Expand unit (06) and the first decryption unit (08), and is connected by the first decryption unit (08) with first control unit (010);
First signal modulation unit (03) connection feedback error checking unit (09), the first signal demodulation unit (04) also with feedback error detection Unit (09) be connected, feedback error checking unit (09) be connected with first control unit (010), first control unit (010) also with First signal modulation unit (03) is connected;
The end user communication device (2) includes the second transmission unit (21), the second receiving unit (22), second signal modulation Unit (23), second signal demodulating unit (24), the second spectrum-spreading unit (25), the second despread unit (26), the second encryption unit (27), the second decryption unit (28), the second control unit (29), impedance matching unit (210), feedback unit (211) and energy Receiving unit (212), in which:
Cable (1) is connected with the second receiving unit (22), and the second receiving unit (22) is sequentially connected second signal demodulating unit (24), the second despread unit (26), the second decryption unit (28), and pass through the second decryption unit (28) and the second control unit (29) it is connected;Second control unit (29) is also sequentially connected the second spectrum-spreading unit (25), the by the second encryption unit (27) Binary signal modulation unit (23), the second transmission unit (21) and energy acceptance unit (212), and pass through energy acceptance unit (212) it is connected with cable (1);
Second control unit (29) is also connected by matching unit (210) with energy acceptance unit (212);
The second signal demodulating unit (24) is also connected by feedback unit (211) with the second transmission unit (21), is fed back Unit (211) is also connected with the second control unit (29).
2. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that described Cable (1) is two any one parallel conducting wires.
3. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that total In thread control device (0), first transmission unit (01) is a H bridge or differential driver, and described first receives list First (02) is any current sense circuit.
4. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that at end It holds in communication device (2), second transmission unit (21) is a constant-current pulse generator, second receiving unit It (22) is that polarity identification circuit or difference channel receive circuit.
5. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that at end Impedance matching unit (210) described in communication device (2) is held, can adaptively be adjusted according to network size.
6. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that at end It holds in communication device (2), the energy acceptance unit (212) is a bridge switching circuit, and energy transmission passes through polarity not The signal of disconnected variation can be transformed into DC power supply in energy acceptance unit (212).
7. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that described First spectrum-spreading unit (05) and the second spectrum-spreading unit (25) are all made of forward error correction mode or information redundancy mode is spread, described First despread unit (06) and the second despread unit (26) are all made of decoding or voting formula restores information.
8. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that described First encryption unit (07) and the second encryption unit (27) are using any cipher key pair information encryption;First decryption unit (08) and the second decryption unit (28) is using any cipher key pair information decryption.
9. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that described First signal modulation unit (03) uses pulse width modulation mode to send the code of " 0 " and " 1 ", second signal demodulating unit (24) The code of " 0 " and " 1 " is demodulated by the identification to pulsewidth;The second signal modulation unit (23) is sent out using electric current loop mode The code of " 0 " and " 1 " is sent, first signal demodulation unit (04) demodulates the generation of " 0 " and " 1 " by identifying to current signal Code.
10. the network communicating system of nonpolarity energy as described in claim 1 and information transmitting multiplexing, which is characterized in that institute During stating the first transmission unit (01) transmission information, the second transmission unit (21) sends return path signal, each period simultaneously Interior different electric current loop pulsewidth indicates the code of " 0 " and " 1 ".
CN201811598686.3A 2018-12-26 2018-12-26 A kind of network communicating system of nonpolarity energy and information transmitting multiplexing CN109639316A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2482454A1 (en) * 2011-01-28 2012-08-01 Niko NV Measuring device for detecting a modulation signal on a bus with unknown polarity and bus device
CN104572337A (en) * 2015-01-26 2015-04-29 中国航天科技集团公司第九研究院第七七一研究所 Inter-chip data transmission method
CN106528481A (en) * 2016-12-29 2017-03-22 无锡华润矽科微电子有限公司 Discharge circuit integrated behind bus rectifier bridge at interior of slave chip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2482454A1 (en) * 2011-01-28 2012-08-01 Niko NV Measuring device for detecting a modulation signal on a bus with unknown polarity and bus device
CN104572337A (en) * 2015-01-26 2015-04-29 中国航天科技集团公司第九研究院第七七一研究所 Inter-chip data transmission method
CN106528481A (en) * 2016-12-29 2017-03-22 无锡华润矽科微电子有限公司 Discharge circuit integrated behind bus rectifier bridge at interior of slave chip

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