CN219164571U

CN219164571U - Power signal integrated transmission device and airborne suspended object system

Info

Publication number: CN219164571U
Application number: CN202320042991.4U
Authority: CN
Inventors: 范大勇; 仇三东
Original assignee: Avic Avionics Corp ltd
Current assignee: Avic Avionics Corp ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-09
Anticipated expiration: 2033-01-06

Abstract

The utility model discloses an integrated transmission device for power signals, which relates to the field of photoelectric transmission, and comprises: the first isolation network module is used for decomposing an input signal into an internal uplink optical fiber channel signal, a working power supply and a working power supply return signal; the second isolation network module is used for decomposing an input signal into an internal downlink optical fiber channel signal, a safety-enabled power supply and a safety-enabled power supply return signal; compared with the prior art, the utility model has the beneficial effects that the first isolation network module and the second isolation network module are isolated and not connected, and the utility model has the following advantages: aiming at the problem of complex structure such as independent transmission of an onboard suspension interface signal and a power line at present, the utility model realizes an onboard suspension interface standard for integrated transmission of an onboard suspension interface power supply and a 1760 signal.

Description

Power signal integrated transmission device and airborne suspended object system

Technical Field

The utility model relates to the field of photoelectric transmission, in particular to a power signal integrated transmission device and an onboard suspension system.

Background

A device capable of transmitting signals through positive and negative lines of a power supply is described in a patent of a device manufacturing method capable of transmitting signals through positive and negative lines of a power supply and a drawing (grant publication number CN 209767563U). The device comprises a power switch tube, a power-on starting circuit formed by a current sampling resistor, a high-level locking circuit and a low-level locking circuit, and comprises three ports. The system design is built by circuits such as a field effect transistor, a diode, a resistor and the like, and has complex design and higher cost.

A T-type bias device design of a medium-microstrip circuit and coaxial line mixture is introduced in conference paper 0.7-6 GHz medium-power and high-current T-type bias device design (conference paper of 2019 national microwave millimeter wave conference paper (the following book) 2019 end Hao Qing and Zhang Liping), and the T-type bias device design is realized through microstrip multistage step impedance transformation and open-circuit branch transmission circuit design. Meets the indexes of 100W, 10A transmission power, 0.7-6 GHz transmission frequency setting and the like.

Because the MIL-STD-1760 protocol and research are less in China at present, the existing bias device design-based power supply and signal integrated transmission scheme design is difficult to meet the requirements of the frequency range and the transmission power at the same time, and the airborne environment is special and the signal attenuation requirement is high, so that the use requirements in the aspects of input and output impedance matching and the like cannot be met.

Disclosure of Invention

The utility model aims to provide a power signal integrated transmission device and an onboard suspension system so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a power signal integral transmission device, comprising:

the first isolation network module is used for decomposing an input signal into an internal uplink optical fiber channel signal, a working power supply and a working power supply return signal;

the second isolation network module is used for decomposing an input signal into an internal downlink optical fiber channel signal, a safety-enabled power supply and a safety-enabled power supply return signal;

the first isolation network module and the second isolation network module are isolated and disconnected.

As still further aspects of the utility model: the first isolation network module comprises a first biaser and a second biaser, wherein a first end of the first biaser is connected with an input signal, a second end of the first biaser outputs an uplink optical fiber channel signal, a third end of the first biaser is connected with a negative electrode of a working power supply, a first end of the second biaser is connected with the input signal, a second end of the second biaser outputs the uplink optical fiber channel signal, and a third end of the second biaser is connected with a positive electrode of the working power supply.

As still further aspects of the utility model: the second isolation network module comprises a third biaser and a fourth biaser, wherein the second end of the third biaser is connected with an input signal, the first end of the third biaser outputs a downlink optical fiber channel signal, the third end of the third biaser is connected with the negative electrode of the safety enabling power supply, the second end of the fourth biaser is connected with the input signal, the first end of the fourth biaser outputs the downlink optical fiber channel signal, and the third end of the fourth biaser is connected with the positive electrode of the safety enabling power supply.

As still further aspects of the utility model: the biaser includes 3 ports, is radio frequency port RF, direct current offset port DC, radio frequency and direct current port DC+RF respectively, and radio frequency and direct current port DC+RF connect capacitor C1's one end, inductance L's other end is connected direct current offset port DC, and capacitor C1's the other end is connected radio frequency port RF.

An onboard suspension system employs a power signal integral transmission device as described above.

Compared with the prior art, the utility model has the beneficial effects that: aiming at the problem of complex structure such as independent transmission of an onboard suspension interface signal and a power line at present, the utility model realizes an onboard suspension interface standard for integrated transmission of an onboard suspension interface power supply and a 1760 signal.

Drawings

Fig. 1 is a schematic diagram of an integrated power signal transmission device.

Fig. 2 is a schematic diagram of a biaser.

Fig. 3 is a schematic diagram of a prior art on-board suspension system.

Fig. 4 is a schematic diagram of an interface of a prior art on-board suspension system.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1, a power signal integrated transmission device includes:

In particular embodiments: referring to fig. 1, the design concept is:

1) The MILs-STD-1760 protocol is first analyzed to transmit signal frequency ranges at the physical layer.

2) And selecting filter software to simulate and design the biaser according to the frequency range of the signal.

3) Parameters such as input impedance, output impedance and the like are added in the simulation, and parameters and models of the biaser are finally determined.

The device design implementation steps are as follows:

1) The MIL-STD-1760 protocol signal receiving and transmitting frequency is 1.0625GHz, and the bandwidth of the transmission signal is 106.25 MHz-531 MHz because the protocol is transmitted by using an 8B/10B coding mode.

2) The bias device is designed by using radio frequency software Genesys of De-technology, S/Filter is used, the Filter type is selected to be Highpass, and the cut-off frequency is selected to be 10MHz. The radio frequency software and the filter type are not unique, and other software or models can be selected according to the actual conditions.

3) Selecting a differential microstrip line, adding the impedance of a differential interface of an inner channel of the front-end optical fiber, selecting 150 omega for output impedance, and designing an isolation network module, namely a bias device. And finally designing the circuit board, wherein the overcurrent capacity of the external port and the internal direct current power supply interface meets the interface standard of the airborne suspended object, the input and output impedance, the inductance overcurrent capacity and the impedance. Finally, the power signal integrated transmission device shown in fig. 1 is obtained, the input signal is converted into a working power supply and a 1760 signal through the first isolation network module, and the working power supply is used for maintaining the working of the first isolation network module; the 1760 signal (upstream fibre channel signal) is output and sent to other devices for information transfer. Likewise 1760 signals (corresponding to the input signals of the second isolated network module) are input to the second isolated network module, the output 1760 signals are output to the signal receiving device, and the security-enabled power supply needs to be additionally provided.

In this embodiment: referring to fig. 1, the first isolation network module includes a first biaser and a second biaser, wherein a first end of the first biaser is connected with an input signal, a second end of the first biaser outputs an uplink optical fiber channel signal, a third end of the first biaser is connected with a negative electrode of a working power supply, a first end of the second biaser is connected with the input signal, a second end of the second biaser outputs the uplink optical fiber channel signal, and a third end of the second biaser is connected with a positive electrode of the working power supply.

The first and second biasers cooperate to convert an input signal into a working power supply and an upstream optical fiber signal (1760 signal).

In this embodiment: referring to fig. 1, the second isolation network module includes a third biaser and a fourth biaser, wherein a second end of the third biaser is connected with an input signal, a first end of the third biaser outputs a downlink optical fiber channel signal, a third end of the third biaser is connected with a safety enabling power supply cathode, a second end of the fourth biaser is connected with the input signal, a first end of the fourth biaser outputs the downlink optical fiber channel signal, and a third end of the fourth biaser is connected with a safety enabling power supply anode.

The third and fourth biasers cooperate to convert the input signal into a security-enabled power supply and a downstream optical fiber signal (1760 signal), and the security-enabled power supply needs to be additionally provided because the input signal is composed of the 1760 signal.

In this embodiment: referring to fig. 1 and 2, the bias device includes 3 ports, which are a radio frequency port RF, a direct current bias port DC, and a radio frequency and direct current port dc+rf, wherein the radio frequency and direct current port dc+rf is connected to one end of the capacitor C1 and one end of the inductor L, the other end of the inductor L is connected to the direct current bias port DC, and the other end of the capacitor C1 is connected to the radio frequency port RF.

When the input signal is input from the radio frequency and direct current port DC+RF, the input signal is provided with a direct current signal and a radio frequency signal, and the direct current signal supplies power for the direct current bias port DC through an inductor L (isolating alternating current information and preventing high frequency information from leaking to the direct current bias port DC); the radio frequency signal is output to the radio frequency port RF through a capacitor C1 (dc blocking, preventing leakage of the dc signal to subsequent circuits).

The method is applied to a first isolation network module to divide an input signal (carrying a power supply signal) into a working power supply and an uplink optical fiber signal (1760 signal); the second isolation network module is used for dividing an input signal (which does not carry a power signal and is only 1760 signal) into a safety enabling power supply and a downlink optical fiber signal (1760 signal), and the safety enabling signal needs to be additionally provided because of no power signal.

In this embodiment: referring to fig. 3 and 4, an on-board suspended object system employs the integrated power signal transmission device as described above.

Fig. 3 shows a host aircraft/carrier platform that may include a number of internal electronics for interfacing with the small scale hangers, through which electrical connection is made to the small scale ammunition/hangers. The suspension is connected to the carrying system either in a direct blind-mate manner or via a fixed (re-threaded) umbilical cable through the carrying system. One small suspension interface comprises two parts, one part is a small suspension carrier interface (MSCI) on the carrier system structure and the other part is a small task suspension interface (MMSI) on the suspension structure.

Referring to fig. 4, a small suspended object interface includes the interface signal set shown in fig. 4, if each power source and signal line are routed separately, the cable structure at the interface portion is complex, and if the distance between the carrying platform and the mounting portion is far, the carrying system is reduced in airborne security, and resources are wasted.

The platform uses MIL-STD-1760 protocol, and the power signal integrated transmission device is used for modifying the carrying platform and the suspended object interface, multiplexing the uplink optical fiber with the working power supply cable and multiplexing the downlink optical fiber with the safety enabling power supply cable, so that the number of cables of each carrying platform and suspended object interface is greatly reduced.

The working principle of the utility model is as follows: the first isolated network module decomposes the input signal into an internal upstream fibre channel signal, and working power return signals, and the second isolated network module decomposes the input signal into an internal downstream fibre channel signal, and safety-enabling power return signals.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. An integrative transmission device of power signal, its characterized in that:

the power signal integrated transmission device comprises:

2. The integrated power signal transmission device according to claim 1, wherein the first isolation network module comprises a first biaser and a second biaser, a first end of the first biaser is connected with an input signal, a second end of the first biaser outputs an uplink optical fiber channel signal, a third end of the first biaser is connected with a negative electrode of the working power supply, a first end of the second biaser is connected with the input signal, a second end of the second biaser outputs the uplink optical fiber channel signal, and a third end of the second biaser is connected with a positive electrode of the working power supply.

3. The integrated power signal transmission device according to claim 1, wherein the second isolation network module includes a third biaser, a fourth biaser, a second end of the third biaser is connected to the input signal, a first end of the third biaser outputs a downstream fibre channel signal, a third end of the third biaser is connected to a safety enable power supply negative electrode, a second end of the fourth biaser is connected to the input signal, a first end of the fourth biaser outputs a downstream fibre channel signal, and a third end of the fourth biaser is connected to a safety enable power supply positive electrode.

4. A power signal integrated transmission device according to claim 2 or 3, wherein the bias device comprises 3 ports, namely a radio frequency port RF, a direct current bias port DC, and a radio frequency and direct current port dc+rf, the radio frequency and direct current port dc+rf is connected to one end of the capacitor C1 and one end of the inductor L, the other end of the inductor L is connected to the direct current bias port DC, and the other end of the capacitor C1 is connected to the radio frequency port RF.

5. An on-board suspension system employing a power signal integral transmission device as claimed in any one of claims 1 to 4.