CN207490918U - A kind of optical fiber for carrier rocket is used to a group communication interface circuit - Google Patents
A kind of optical fiber for carrier rocket is used to a group communication interface circuit Download PDFInfo
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- CN207490918U CN207490918U CN201721401687.5U CN201721401687U CN207490918U CN 207490918 U CN207490918 U CN 207490918U CN 201721401687 U CN201721401687 U CN 201721401687U CN 207490918 U CN207490918 U CN 207490918U
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Abstract
The utility model discloses a kind of optical fiber for carrier rocket to be used to a group communication interface circuit, including：Gyro communication module plus table pulse collection module, secondary power supply acquisition module, temperature control communication module and correspondence with foreign country module；Wherein, gyro communication module receives the angular velocity signal that gyro is sent and obtains angular velocity information after being handled；Table pulse collection module is added to acquire acceleration information；Secondary power supply voltage value is converted into voltage digital signal by secondary power supply acquisition module；Temperature control communication module receives the temperature signal that temperature control circuit sends over and processing obtains the temperature value of gyro, Jia Biao and enclosure interior；Received angular velocity information, acceleration information, interior point temperature information and voltage digital signal are transferred to arrow and carry computer by correspondence with foreign country module.The utility model solves few transmission information content, average information conversion and improvement difficult problem, has achieved the effect that abundant transmission information, has simplified product category and upgrade convenient for improving.
Description
Technical field
The utility model belongs to that optical fiber is used to group internal circuit field more particularly to a kind of optical fiber for carrier rocket is used to group
Communication interface circuit.
Background technology
Existing used group interface circuit output uses multiplex pulse pattern, is handled by strapdown computer, is converted to 422
Arrow is inputted after signal and carries computer.
It is limited by space, used group interface circuit output way is limited, can not reflect a used group internal operating condition comprehensively.And
The product that arrow carries computer connection is more, receives each road pulse without redundant space, strapdown computer is needed to turn each road pulse
422 signals are melted into, therefore increase product category, improve rocket cost.Another existing interface circuit is limited by impulse circuit,
It needs to restructure when design improves to realize with circuit board.
Utility model content
The utility model solve the technical issues of be：It has overcome the deficiencies of the prior art and provide a kind of for carrier rocket
Optical fiber be used to a group communication interface circuit, solve transmission information content be few, average information conversion and improvement difficult problem, reach
Abundant transmission information simplifies product category and the effect convenient for improving upgrading.
The utility model aim is achieved by the following technical programs：A kind of optical fiber for carrier rocket is used to a group communication
Interface circuit, including：Gyro communication module plus table pulse collection module, secondary power supply acquisition module, temperature control communication module and right
Outer communication module；Wherein, the gyro communication module receives the angular velocity signal that gyro is sent and angle speed is obtained after being handled
Spend information；Described plus table pulse collection module acquisition acceleration information；The secondary power supply acquisition module is by secondary power supply voltage
Value is converted into voltage digital signal；The temperature control communication module receives the temperature signal that temperature control circuit sends over and processing obtains
The temperature value of gyro, Jia Biao and enclosure interior；The correspondence with foreign country module believes received angular velocity information, acceleration
Breath, interior point temperature information and voltage digital signal are transferred to arrow and carry computer.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the gyro communication module includes receiving core
Piece, the first electrical level transferring chip and FPGA；Wherein, the reception chip and electrical level transferring chip series connection, first electricity
Flat conversion chip is connected with the FPGA；The chip that receives receives the angle rate signal that gyro is sent；Angle rate signal leads to
The FPGA is sent to after crossing the first electrical level transferring chip conversion voltage；The angle rate signal that the FPGA will convert voltage
It is decoded and angular velocity information is calculated.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and described plus table pulse collection module includes second
Electrical level transferring chip and FPGA；Wherein, the second electrical level conversion chip is connected with the FPGA；Table pulse is added to pass through described
The FPGA is sent to after second electrical level conversion chip conversion voltage；Convert voltage plus table pulse is decoded by the FPGA
Acceleration information is calculated.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the secondary power supply acquisition module includes amplifier
Circuit, modulus conversion chip, third electrical level transferring chip and FPGA；Wherein, the operational amplifier circuit passes through secondary power supply voltage
Amplification is converted into unified level and is sent to the modulus conversion chip；The modulus conversion chip is by unified level conversion
The third electrical level transferring chip is sent into digital quantity, and by digital quantity；Digital quantity passes through the third electrical level transferring chip
The FPGA is sent to after conversion voltage；Digital quantity parsing is converted into the voltage digital signal of each road power supply by the FPGA.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the temperature control communication module includes second and receives
Chip, the 4th electrical level transferring chip and FPGA；Wherein, the second reception chip receives the temperature signal that temperature control circuit sends over；
Temperature signal is sent to the FPGA after converting voltage by the 4th electrical level transferring chip；The temperature that the FPGA will be received
Degree signal resolution is converted into the temperature value of gyro, Jia Biao and enclosure interior.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the correspondence with foreign country module includes transmission chip
And FPGA, wherein, the FPGA is by received angular velocity information, acceleration information, interior point temperature information and voltage
Digital signal by preset communication format, is transferred to arrow through transmission chip and carries computer, for rocket trajectory gesture stability.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the reception chip receives chip, institute for 422
The first electrical level transferring chip is stated as SNJ54LVTH16245 electrical level transferring chips.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the second electrical level conversion chip is
SNJ54LVTH16245 electrical level transferring chips.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and the modulus conversion chip is AD7824 moduluses
Conversion chip, the third electrical level transferring chip are SNJ54LVTH16245 electrical level transferring chips.
The above-mentioned optical fiber for carrier rocket is used in group communication interface circuit, and described second receives chip receives core for 422
Piece, the 4th electrical level transferring chip are SNJ54LVTH16245 electrical level transferring chips.
The utility model has the advantages that compared with prior art：
(1) the utility model can be more convenient to used group internal information acquisition, increases to secondary power supply and temperature control point
Monitoring, and 422 communication interfaces are used, carrying computer with arrow matches conveniently, can transmit more information；
(2) data processing packing function is integrated into used group inside by the utility model, instead of strapdown of the prior art
Computer economically reduces product, has saved funds, and the safety and reliability of rocket is improved from design angle；
(3) the utility model uses modularized design, and separate modular can be changed in subsequent design development
Changes of function can be realized, be applicable in different requirements.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to this practicality
Novel limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the signal that the optical fiber for carrier rocket that the utility model embodiment provides is used to group communication interface circuit
Figure；
Fig. 2 is the connection diagram of the reception chip for the gyro communication module that the utility model embodiment provides；
Fig. 3 is the schematic diagram of the operational amplifier circuit for the secondary power supply acquisition module that the utility model embodiment provides；
Fig. 4 is the connection diagram of the transmission chip for the correspondence with foreign country module that the utility model embodiment provides.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although the disclosure is shown in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Completely it is communicated to those skilled in the art.It should be noted that in the absence of conflict, the implementation in the utility model
Feature in example and embodiment can be combined with each other.It is below with reference to the accompanying drawings and in conjunction with the embodiments new this practicality is described in detail
Type.
Fig. 1 is the signal that the optical fiber for carrier rocket that the utility model embodiment provides is used to group communication interface circuit
Figure.Include as shown in Figure 1, the optical fiber for being used for carrier rocket is used to a group communication interface circuit：Gyro communication module plus table pulse are adopted
Collect module, secondary power supply acquisition module, temperature control communication module and correspondence with foreign country module；Wherein, gyro communication module receives gyro
The angular velocity information of transmission；Table pulse collection module is added to acquire acceleration information；Secondary power supply acquisition module is electric by secondary power supply
Pressure value is converted into voltage digital signal；Temperature control communication module receives gyro, Jia Biao and case temperature information；Correspondence with foreign country module will
Received angular velocity information, acceleration information, interior point temperature information and voltage digital signal is transferred to arrow and carries calculating
Machine.
In above-described embodiment, gyro communication module includes receiving chip, the first electrical level transferring chip and the first FPGA；Its
In, chip and electrical level transferring chip series connection are received, the first electrical level transferring chip is connected with FPGA；It receives chip and receives top
The angle rate signal that spiral shell is sent；Angle rate signal is sent to FPGA after converting voltage by the first electrical level transferring chip；FPGA will
The angle rate signal of conversion voltage, which is decoded, is calculated angular velocity information.When it is implemented, gyro communication module includes 422
Chip, SNJ54LVTH16245 electrical level transferring chips, FPGA are received, the connection relation between each chip is series connection, and 422 connect
422 differential signals that chip sends over gyro are received to convert, and pass through SNJ54LVTH16245 electrical level transferring chips by 5V's
Transistor-Transistor Logic level, which is converted into I/O mouthfuls of FPGA, can receive 3.3V signals, into FPGA inside be decoded calculating.
In above-described embodiment, table pulse collection module is added to include second electrical level conversion chip and FPGA；Wherein, second electrical level
Conversion chip is connected with FPGA；Table pulse is added to be sent to FPGA after converting voltage by second electrical level conversion chip；FPGA will
Conversion voltage plus table pulse be decoded acceleration information be calculated.When it is implemented, plus table pulse collection module include
SNJ54LVTH16245 electrical level transferring chips, FPGA, the connection relation between each chip is series connection, and table pulse is added to pass through
The Transistor-Transistor Logic level of 5V is converted into I/O mouthfuls of FPGA by SNJ54LVTH16245 electrical level transferring chips can receive 3.3V signals, enter
FPGA inside pair plus table signal add up.
In above-described embodiment, secondary power supply acquisition module includes operational amplifier circuit, modulus conversion chip, third level conversion core
Piece and FPGA；Wherein, secondary power supply voltage is converted into unified level by amplification and is sent to analog-to-digital conversion by operational amplifier circuit
Chip；Unified level conversion is sent to third electrical level transferring chip by modulus conversion chip into digital quantity, and by digital quantity；Number
FPGA is sent to after the conversion voltage that word amount passes through third electrical level transferring chip；Digital quantity parsing is converted into each road power supply by FPGA
Voltage digital signal.When it is implemented, secondary power supply acquisition module include OP200 amplifiers, AD7824 modulus conversion chips,
SNJ54LVTH16245 electrical level transferring chips, FPGA, the connection relation between each chip is series connection, and OP200 amplifiers will be secondary
Supply voltage is converted into unified level, and pass through AD7824 modulus conversion chips and be converted into number by a certain proportion of amplification
Amount, the Transistor-Transistor Logic level of 5V is converted into I/O mouthfuls of FPGA by transformed digital quantity by SNJ54LVTH16245 electrical level transferring chips can
To receive 3.3V signals, into FPGA inside carry out parsing and be converted into the voltage value of each road power supply.
In above-described embodiment, temperature control communication module includes second and receives chip, the 4th electrical level transferring chip and the 4th FPGA；
Wherein, the second reception chip receives the temperature signal that temperature control circuit sends over；Temperature signal passes through the 4th electrical level transferring chip
Conversion voltage after be sent to FPGA；Temperature signal parsing is converted into the temperature value of gyro, Jia Biao and housing by FPGA.Specifically
During implementation, temperature control communication module include 422 receive chips, SNJ54LVTH16245 electrical level transferring chips, FPGA, each chip it
Between connection relation be series connection, 422 differential signals that 422 reception chips send over gyro are converted, and pass through
The Transistor-Transistor Logic level of 5V is converted into I/O mouthfuls of FPGA by SNJ54LVTH16245 electrical level transferring chips can receive 3.3V signals, enter
The temperature value that parsing is converted into each road temperature control point is carried out inside FPGA.
In above-described embodiment, correspondence with foreign country module includes transmission chip and FPGA, wherein, FPGA is fast by received angle
Information, acceleration information, interior point temperature information and voltage digital signal are spent, by preset communication format, through sending core
Piece is transferred to arrow and carries computer, for rocket trajectory gesture stability.When it is implemented, correspondence with foreign country module, which includes 422, sends core
Piece, FPGA, the connection relation between each chip are series connection, FPGA by received angular velocity information, acceleration information,
Internal temperature and information of voltage are packaged, and by the communication format appointed, are transferred to arrow through 422 communication interfaces and are carried computer, use
In rocket trajectory gesture stability.
Specifically, gyro communication module receives chips by 422, receive the angular velocity information that No. 4 gyros are sent, and after pass through
Over level is converted, and the Transistor-Transistor Logic level of the 5V of 422 reception chips is converted into I/O mouthfuls of FPGA can receive 3.3V signals, last 4 tunnel
The angular velocity information that gyro is sent enters FPGA storages processing；Add table pulse collection module to 4 Lu Jiabiao pulses using same
After level conversion, collected acceleration information is transmitted to FPGA storages processing；Secondary power supply acquisition module is used to group to optical fiber
Internal all secondary power supplies adjust amplification factor by OP200 amplifiers, are converted into unified specification and AD7824 is facilitated to acquire, equally
The signal of AD7824 outputs is transmitted to FPGA storages processing after level conversion, by collected secondary power supply information；Temperature control
Communication module appoints formatted data packet by 422 reception chip receptions, after level conversion, by collected each point temperature
Information is transmitted to FPGA storages processing；Correspondence with foreign country module includes carrying arrow computer communication, surveys port communication and telemetering with ground
Port communication, wherein major function are that computer communication is carried to arrow, and FPGA believes received angular velocity information, acceleration
After breath, internal temperature and information of voltage are packaged, according to agreement formatted data packet, it is transferred to arrow by 422 communication interfaces and carries calculating
Machine is used for rocket trajectory gesture stability, with ground survey port communication and telemetering port communication be then optical fiber is used to the working condition of group into
Row monitoring, on major function without influence.
Gyro communication module receives chip by one piece of DS26C32 422 and receives 4 road gyro signals simultaneously, and receiving circuit is adopted
The connection mode of chip recommendation is received with DS26C32, as shown in Fig. 2, connecting 120 Ω matching electricity between anode and negative terminal receiving
Resistance, and driving force is increased using the pull-up and pull down resistor of 2.4k Ω.Since DS26C32 receives chip output as 5V's
Transistor-Transistor Logic level, and I/O mouthfuls of acceptable level of FPGA are 3.3V, so needing SNJ54LVTH16245 electrical level transferring chip tune
Whole DS26C32 receives the level of chip signal output, is matched for I/O mouthfuls with FPGA.FPGA meetings after 4 road gyro signals are received
It is stored according to defined Data Format Transform, periodically sends and update.
Add the Transistor-Transistor Logic level pulse signal that the collected signal of table pulse collection module is 5V, also due to level mismatches,
3.3V signals can be received by needing SNJ54LVTH16245 electrical level transferring chips that the Transistor-Transistor Logic level of 5V is converted into I/O mouthfuls of FPGA,
It adds up into FPGA inside pair plus table signal, periodically sends and update.
Secondary power supply acquisition module is used to optical fiber all secondary power supplies in group inside and is acquired, due to secondary power supply include ±
So needing to adjust amplification factor by OP200 amplifiers, it is convenient to be converted into unified specification for the voltage of the different sizes such as 15V, ± 5V
A/D is acquired, and Fig. 3 is amplifying circuit circuit diagram, as shown in figure 3, resistance R2 is identical with resistance R8 resistance values, resistance R13 is balance electricity
Resistance, so amplifier ratio is 1:1, -5V voltage (about 1/3rd of -5V voltages) after resistance R5, resistance R11 partial pressure,
Amplifier output -5JK_O is given to AD7824 acquisitions.By choosing different resistances, adjustment amplification factor is (during final decoding again
Divided by each road amplification factor) so that amplifier output voltage can be in acquisition voltage range in AD7824, AD7824 modulus conversion chips
Collected analog quantity is converted into digital quantity, transformed digital quantity is by SNJ54LVTH16245 electrical level transferring chips by 5V's
Transistor-Transistor Logic level, which is converted into I/O mouthfuls of FPGA, can receive 3.3V signals, into FPGA inside carry out parsing be converted into each road power supply
Voltage value.Fig. 3's is described as：R2, R8 resistance value are identical in figure, and R13 is balance resistance, so amplifier ratio is 1:1, -5V electricity
(about 1/3rd of -5V voltages) are pressed after R5, R11 partial pressure, and amplifier output -5JK_O is given to AD7824 acquisitions.
Temperature control communication module receives chip by one piece of DS26C32 422 and receives temperature signal simultaneously, and receiving circuit uses
DS26C32 receives the connection mode that chip is recommended, as shown in Figure 2.Also due to DS26C32 receives TTL of the chip output for 5V
Level, and I/O mouthfuls of acceptable level of FPGA are 3.3V, so SNJ54LVTH16245 electrical level transferring chips is needed to adjust
DS26C32 receives the level of chip signal output, is matched for I/O mouthfuls with FPGA.FPGA can be according to after 4 road gyro signals are received
It is stored according to defined Data Format Transform, periodically sends and update.
Correspondence with foreign country module includes carrying arrow computer communication, surveys port communication and telemetering port communication with ground, wherein main
It is to carry computer communication to arrow to want function, and FPGA is by received angular velocity information, acceleration information, internal temperature and voltage
After information package, according to agreement formatted data packet, periodically arrow is transferred to by 422 communication interfaces and carries computer, for rocket rail
Road gesture stability.The connection mode recommended using DS26C31 transmission chips is sent, as shown in figure 4, simultaneously in DS26C31 difference
The positive and negative road of output signal seals in 10 Ω resistance respectively, carries out current limliting, and used group internal short circuit fault is prevented to carry computer production to arrow
It is raw to influence.It is then that the working condition for being used to organize to optical fiber is monitored to survey port communication and telemetering port communication with ground, to main work(
It can be without influence.
Embodiment described above is the utility model more preferably specific embodiment, and those skilled in the art exists
The usual variations and alternatives carried out in the range of technical solutions of the utility model should all include within the protection scope of the present utility model.
Claims (10)
1. a kind of optical fiber for carrier rocket is used to a group communication interface circuit, it is characterised in that including：Gyro communication module plus table
Pulse collection module, secondary power supply acquisition module, temperature control communication module and correspondence with foreign country module；Wherein,
The gyro communication module receives the angular velocity signal that gyro is sent and obtains angular velocity information after being handled；
Described plus table pulse collection module acquisition acceleration information；
Secondary power supply voltage value is converted into voltage digital signal by the secondary power supply acquisition module；
The temperature control communication module receives the temperature signal that temperature control circuit sends over and processing is obtained in gyro, Jia Biao and housing
The temperature value in portion；
The correspondence with foreign country module is by received angular velocity information, acceleration information, interior point temperature information and voltage
Digital data transmission carries computer to arrow.
2. the optical fiber according to claim 1 for carrier rocket is used to a group communication interface circuit, it is characterised in that：The top
Spiral shell communication module includes receiving chip, the first electrical level transferring chip and FPGA；Wherein,
The reception chip and electrical level transferring chip series connection, first electrical level transferring chip are connected with the FPGA；
The chip that receives receives the angle rate signal that gyro is sent；
Angle rate signal is sent to the FPGA after converting voltage by first electrical level transferring chip；
The angle rate signal for converting voltage is decoded and angular velocity information is calculated by the FPGA.
3. the optical fiber according to claim 1 for carrier rocket is used to a group communication interface circuit, it is characterised in that：It is described to add
Table pulse collection module includes second electrical level conversion chip and FPGA；Wherein,
The second electrical level conversion chip is connected with the FPGA；
Table pulse is added to be sent to the FPGA after converting voltage by the second electrical level conversion chip；
Convert voltage plus table pulse is decoded and acceleration information is calculated by the FPGA.
4. the optical fiber according to claim 1 for carrier rocket is used to a group communication interface circuit, it is characterised in that：Described two
Secondary source acquisition module includes operational amplifier circuit, modulus conversion chip, third electrical level transferring chip and FPGA；Wherein,
Secondary power supply voltage is converted into unified level by amplification and is sent to the analog-to-digital conversion core by the operational amplifier circuit
Piece；
Unified level conversion is sent to the third level conversion by the modulus conversion chip into digital quantity, and by digital quantity
Chip；
Digital quantity is sent to the FPGA after converting voltage by the third electrical level transferring chip；
Digital quantity parsing is converted into the voltage digital signal of each road power supply by the FPGA.
5. the optical fiber according to claim 1 for carrier rocket is used to a group communication interface circuit, it is characterised in that：The temperature
It controls communication module and includes the second reception chip, the 4th electrical level transferring chip and FPGA；Wherein,
Second reception chip receives the temperature signal that temperature control circuit sends over；
Temperature signal is sent to the FPGA after converting voltage by the 4th electrical level transferring chip；
The temperature signal received parsing is converted into the temperature value of gyro, Jia Biao and enclosure interior by the FPGA.
6. the optical fiber according to claim 1 for carrier rocket is used to a group communication interface circuit, it is characterised in that：It is described right
Outer communication module includes transmission chip and FPGA, wherein,
The FPGA by received angular velocity information, acceleration information, interior point temperature information and voltage digital signal,
By preset communication format, it is transferred to arrow through transmission chip and carries computer, for rocket trajectory gesture stability.
7. the optical fiber according to claim 2 for carrier rocket is used to a group communication interface circuit, it is characterised in that：It is described to connect
It receives chip and receives chip for 422, first electrical level transferring chip is SNJ54LVTH16245 electrical level transferring chips.
8. the optical fiber according to claim 3 for carrier rocket is used to a group communication interface circuit, it is characterised in that：Described
Two electrical level transferring chips are SNJ54LVTH16245 electrical level transferring chips.
9. the optical fiber according to claim 4 for carrier rocket is used to a group communication interface circuit, it is characterised in that：The mould
Number conversion chip is AD7824 modulus conversion chips, and the third electrical level transferring chip is SNJ54LVTH16245 level conversion cores
Piece.
10. the optical fiber according to claim 5 for carrier rocket is used to a group communication interface circuit, it is characterised in that：It is described
Second receives chip receives chip for 422, and the 4th electrical level transferring chip is SNJ54LVTH16245 electrical level transferring chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401687.5U CN207490918U (en) | 2017-10-27 | 2017-10-27 | A kind of optical fiber for carrier rocket is used to a group communication interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721401687.5U CN207490918U (en) | 2017-10-27 | 2017-10-27 | A kind of optical fiber for carrier rocket is used to a group communication interface circuit |
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| CN207490918U true CN207490918U (en) | 2018-06-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682367A (en) * | 2018-12-14 | 2019-04-26 | 上海航天控制技术研究所 | A kind of carrier rocket used group full redundancy circuit of five axis optical fiber |
| CN110850112A (en) * | 2019-11-22 | 2020-02-28 | 上海航天控制技术研究所 | Carrier rocket carries with miniaturized high accuracy acceleration measuring device that subtracts |
-
2017
- 2017-10-27 CN CN201721401687.5U patent/CN207490918U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682367A (en) * | 2018-12-14 | 2019-04-26 | 上海航天控制技术研究所 | A kind of carrier rocket used group full redundancy circuit of five axis optical fiber |
| CN110850112A (en) * | 2019-11-22 | 2020-02-28 | 上海航天控制技术研究所 | Carrier rocket carries with miniaturized high accuracy acceleration measuring device that subtracts |
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