CN104698266A - Ground electrical power source parameter sampling equipment of carrier rocket - Google Patents
Ground electrical power source parameter sampling equipment of carrier rocket Download PDFInfo
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- CN104698266A CN104698266A CN201510156550.7A CN201510156550A CN104698266A CN 104698266 A CN104698266 A CN 104698266A CN 201510156550 A CN201510156550 A CN 201510156550A CN 104698266 A CN104698266 A CN 104698266A
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- power supply
- acquisition module
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Abstract
The invention provides ground electrical power source parameter sampling equipment of a carrier rocket. The ground electrical power source parameter sampling equipment comprises a ground electrical power source, a host computer and a RS485 communication cable, wherein the ground electrical power source internally integrates an electrical power source sampling module, the electrical power source sampling module is connected with the host computer through the RS485 communication cable, electrical power source operating parameters (voltage, current) are transmitted in real time, and the ground electrical power source parameter sampling equipment has the advantages that the transmission is stable and the respond is fast. The ground electrical power source parameter sampling equipment of the carrier rocket sends a ground electrical power source parameter to the host computer through a RS485 serial port of the ground electrical power source, the host computer carries out analytical processing on the received ground electrical power source parameter and then displays the ground electrical power source parameter; compared with the prior art, according to the ground electrical power source parameter sampling equipment, the sampling error of the ground electrical power source parameter can be reduced, meanwhile, ground cable nets and PLC sampling modules are reduced, and the reliability and the advancement of a system are improved.
Description
Technical field
The present invention relates to the sampling of carrier rocket power supply equipment technical field, particularly a kind of carrier rocket ground power supply parameter sampling equipment.
Background technology
Existing carrier rocket ground power supply is mainly used in surveying send out control combination, distribution platform and simulator system power supply equipment to unit, ground on arrow, is the important component part of equipment on checking arrow, arrow ground path and uphole equipment validity.Therefore ground power supply power supply reliability directly determine on arrow and uphole equipment whether working properly.Ground power supply parameter is the Main Basis directly showing ground power work state, and therefore the sampling of ground power supply parameter is the important component part of uphole equipment.As shown in Figure 1, in the past for gathering the equipment mainly PLC sampling module of ground power parameter, PLC sampling module to be sampled power parameter by land cable, usually only carried out collection voltage, electric current.And in this acquisition mode, need that power supply output is inputted PLC sampling module after divider resistance process to sample, the actual output of the sampled point distance power supply selected by this gatherer process has certain error, thus makes gathered power parameter value there is certain difference with the actual power parameter exported.In addition, along with technical development and the new demand to equipment, existing power parameter acquisition mode (arranging independently PLC acquisition module) cannot meet the requirement of existing uphole equipment miniaturization, high reliability and advance.
Therefore, how to provide a kind of ground power supply parameter sampling technology, it had both reduced part uphole equipment composition, met the requirement of system compact, the object of high reliability and accuracy can be reached again, become the major issue that current carrier rocket power parameter collecting device needs to solve.
Summary of the invention
The object of the present invention is to provide a kind of carrier rocket ground power supply parameter sampling equipment, with solve existing carrier rocket ground power supply to be sampled by PLC sampling module existing for the accurate not problem of larger the caused power supply operational factor accuracy rate gathered of sampled point distance real difference.
The invention provides a kind of carrier rocket ground power supply parameter sampling equipment, comprise ground power supply, host computer and communication cable, power supply acquisition module is integrated with in described ground power supply, the input end of described power supply acquisition module is connected with the power output end of described ground power supply, and the output terminal of described power supply acquisition module is connected with described host computer by described communication cable.
Preferably, described power supply acquisition module comprises interchange acquisition module and direct current acquisition module, the alternating voltage that described ground power supply exports inputs the parameter acquisition that described interchange acquisition module carries out alternating voltage, and the DC voltage that described ground power supply exports inputs the parameter acquisition that described direct current acquisition module carries out DC voltage.
Preferably, the input end of described interchange acquisition module also with exchange modulate circuit and be connected, described alternating voltage inputs described interchange acquisition module through described interchange modulate circuit; The input end of described direct current acquisition module is also connected with direct current modulate circuit, and described DC voltage inputs described direct current acquisition module through described direct current modulate circuit.
Preferably, described interchange acquisition module and direct current acquisition module comprise an analog-to-digital conversion module respectively, and described analog-to-digital conversion module is used for the digital quantity signal gathered analog signals being converted to RS232 standard.
Preferably, described communication cable is RS485 communication cable, described power supply acquisition module also comprises a RS232 and turns RS485 modular converter, and described RS232 turns RS485 modular converter for the digital quantity signal of described RS232 standard being converted to the digital quantity signal of RS485 standard.
Preferably, described ground power supply is provided with a communication serial port, and described communication serial port gathers the data of module acquires for obtaining described power supply and carries out data interaction by described communication cable and described host computer.
Preferably, described interchange modulate circuit comprises rectification circuit and filtering circuit, described rectification unit comprises 3 groups and connects between two and the consistent diode in direction, the rectification circuit that described alternating voltage is formed through 3 described 3 groups of diodes of reactor input respectively carries out rectification, then after filtering circuit filtering, export the direct current signal after conditioning.
Preferably, described direct current modulate circuit comprises bleeder circuit and buffer circuit, described bleeder circuit comprises the first resistance and second resistance of series connection mutually, the positive and negative electrode signal of direct current signal is carried in the two ends of described bleeder circuit respectively, described buffer circuit comprises an isolating chip and peripheral circuit thereof, and described first resistance and the second resistance carry out dividing potential drop and exports voltage division signal to isolating chip to carry out the direct current signal after isolation and amplifier conditioning.
Compared with prior art, carrier rocket ground power supply parameter sampling equipment provided by the invention adopts in power source internal sampling, and the sampled point that this sample mode makes sampled point distance practical power export is comparatively near, makes power parameter distortion less.Employing equipment of the present invention is adopted can effectively to reduce the sampling error caused owing to being introduced by land cable, reduce the sampling error of ground power supply parameter, also reduce Ground cable net and PLC sampling module simultaneously, meet the requirement of system compact, improve reliability and the advance of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of carrier rocket ground power supply parameter sampling in prior art;
Fig. 2 is the structural representation of carrier rocket ground power supply parameter sampling equipment provided by the present invention;
Fig. 3 is the inner comprising modules schematic diagram of ground power supply provided by the present invention;
Fig. 4 is the interchange modulate circuit structural representation of the preferred embodiment of the present invention;
Fig. 5 is the direct current modulate circuit structural representation of the preferred embodiment of the present invention;
Fig. 6 is the direct current acquisition module structural representation of the preferred embodiment of the present invention.
Label declaration: 1-ground power supply; 2-communication cable; 3-host computer; 4-communication serial ports.
Embodiment
For better the present invention being described, hereby with a preferred embodiment, and accompanying drawing is coordinated to elaborate to the present invention, specific as follows:
As shown in Figure 2, carrier rocket ground power supply parameter sampling equipment provided by the invention, comprise ground power supply 1, host computer 3 and communication cable 2, wherein, power supply acquisition module is integrated with in ground power supply, the input end of power supply acquisition module is connected with the power output end of ground power supply 1, and power supply acquisition module is for gathering the operational factor of ground power supply.In addition, ground power supply is also provided with a communication serial port 4, and communication serial port 4 is for the data that obtain power supply acquisition module and gather and carry out data interaction by communication cable 2 and host computer 3.
As shown in Figure 3, ground power supply operational factor comprises ac analog and DC analogue quantity, AC voltage range (0 ~ 380V), DC voltage range (0 ~ 40V).Thus the power supply acquisition module in the present embodiment comprises and exchanges acquisition module and direct current acquisition module two parts, and wherein, in order to realize the smooth collection of ac analog and DC analogue quantity, the input end exchanging acquisition module is also with to exchange modulate circuit connected; The input end of direct current acquisition module is also connected with direct current modulate circuit.Input to again after ground power supply alternating voltage input modulate circuit and exchange the parameter acquisition that acquisition module carries out alternating voltage.
As shown in Figure 4, exchanging modulate circuit major function is isolated by constrained input signal, and input signal is converted to the scope DC voltage being applicable to exchanging acquisition module permission input.The current rectifying and wave filtering circuit that modulate circuit forms primarily of diode A1 ~ A6, reactor L1 ~ L3, electric capacity C1 ~ C2, its principle is that 220V alternating current is converted to 0 ~ 30V DC voltage, inputs to interchange acquisition module.This circuit adopts reactor and filter capacitor, effectively can suppress common mode interference, improves of ac acquisition precision, by this design by original interchange acquisition precision from ± 1% being increased to ± 0.5%.
As shown in Figure 5, direct current modulate circuit major function is range data-signal DC analogue quantity being modulated to the collection of applicable direct current acquisition module, and carry out the process of signal modulus by direct current acquisition module, in the present embodiment, modulate circuit is dividing potential drop buffer circuit.Analog quantity channel isolation adopts bleeder circuit and isolating chip AD202 to realize.IN1+, IN1-are the positive negative wire of analog input; What R1, R7 realized input analog amount is divided to 0 ~ 30V, can adopt corresponding resistance according to actual input voltage.This circuit is simple and reliable, and Shi Mei road acquisition channel is isolated, and avoids interference between signal to cause Acquisition Error.
Interchange acquisition module model in the present embodiment is CE-VJ03-34MS2-0.5/300V and direct current acquisition module model is RSM3802.Two kinds of module principles are basically identical, major function is that DC quantity simulating signal is carried out A/D conversion, and exports in RS232 communications protocol mode, illustrates for RSM3802 principle, RSM3802 has 8 tunnels analogy amount inputs, and its constrained input adopts optocoupler completely isolated.Module adopts 32 ARM to be core processor, and run real time operating system software on a processor, have data-handling capacity very fast, response external analog input that can be real-time, carries out reliable data communication with communication module.Picking rate reaches 10ms/ time.RSM3802 acquisition module hardware circuit comprises several parts such as 8 tunnel analog quantity Isolation input power supplys, CPU minimum system, telecommunication circuit, inside modules structure as shown in Figure 6:
Communication cable 2 in the present embodiment is RS485 communication cable, also comprise a RS232 in power supply acquisition module and turn RS485 modular converter, the output terminal exchanging acquisition module and direct current acquisition module turns RS485 modular converter respectively and is connected with RS232, RS232 turns the digital quantity signal that the digital quantity signal of the RS232 standard obtained in analog-to-digital conversion module is converted to RS485 standard by RS485 modular converter.Correspondingly, communication serial ports 4 is RS485 communication serial ports.The analog signals collected is passed through analog to digital conversion by this interchange acquisition module and direct current acquisition module, by acquisition module, analog signals conversion is turned to the digital quantity signal of RS232 standard, through RS485 communication cable, carry out data interaction with the host computer that RS485 Communication Card is housed.
By the RS485 communication serial ports of ground power supply 1, RS485 communication cable 2, the parameters such as the voltage of ground power supply, electric current, frequency are sent to host computer 3 by carrier rocket ground power supply parameter sampling equipment of the present invention, host computer 3 shows after the ground power supply parameter received is carried out dissection process, namely achieves the direct collection of ground voltage output voltage parameter.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art is in the technical scope that the present invention discloses; the distortion do the present invention or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. a carrier rocket ground power supply parameter sampling equipment, it is characterized in that, comprise ground power supply, host computer and communication cable, power supply acquisition module is integrated with in described ground power supply, the input end of described power supply acquisition module is connected with the power output end of described ground power supply, and the output terminal of described power supply acquisition module is connected with described host computer by described communication cable.
2. carrier rocket ground power supply parameter sampling equipment according to claim 1, it is characterized in that, described power supply acquisition module comprises interchange acquisition module and direct current acquisition module, the alternating voltage that described ground power supply exports inputs the parameter acquisition that described interchange acquisition module carries out alternating voltage, and the DC voltage that described ground power supply exports inputs the parameter acquisition that described direct current acquisition module carries out DC voltage.
3. carrier rocket ground power supply parameter sampling equipment according to claim 2, is characterized in that, the input end of described interchange acquisition module also with exchange modulate circuit and be connected, described alternating voltage inputs described interchange acquisition module through described interchange modulate circuit; The input end of described direct current acquisition module is also connected with direct current modulate circuit, and described DC voltage inputs described direct current acquisition module through described direct current modulate circuit.
4. the carrier rocket ground power supply parameter sampling equipment according to Claims 2 or 3, it is characterized in that, described interchange acquisition module and direct current acquisition module comprise an analog-to-digital conversion module respectively, and described analog-to-digital conversion module is used for the digital quantity signal gathered analog signals being converted to RS232 standard.
5. carrier rocket ground power supply parameter sampling equipment according to claim 4, it is characterized in that, described communication cable is RS485 communication cable, described power supply acquisition module also comprises a RS232 and turns RS485 modular converter, and described RS232 turns RS485 modular converter for the digital quantity signal of described RS232 standard being converted to the digital quantity signal of RS485 standard.
6. carrier rocket ground power supply parameter sampling equipment according to claim 1, it is characterized in that, described ground power supply is provided with a communication serial port, and described communication serial port gathers the data of module acquires for obtaining described power supply and carries out data interaction by described communication cable and described host computer.
7. carrier rocket ground power supply parameter sampling equipment according to claim 3, it is characterized in that, described interchange modulate circuit comprises rectification circuit and filtering circuit, described rectification unit comprises 3 groups and connects between two and the consistent diode in direction, the rectification circuit that described alternating voltage is formed through 3 described 3 groups of diodes of reactor input respectively carries out rectification, then after filtering circuit filtering, export the direct current signal after conditioning.
8. carrier rocket ground power supply parameter sampling equipment according to claim 3, it is characterized in that, described direct current modulate circuit comprises bleeder circuit and buffer circuit, described bleeder circuit comprises the first resistance and second resistance of series connection mutually, the positive and negative electrode signal of direct current signal is carried in the two ends of described bleeder circuit respectively, described buffer circuit comprises an isolating chip and peripheral circuit thereof, and described first resistance and the second resistance carry out dividing potential drop and exports voltage division signal to isolating chip to carry out the direct current signal after isolation and amplifier conditioning.
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| CN201510156550.7A CN104698266A (en) | 2015-04-03 | 2015-04-03 | Ground electrical power source parameter sampling equipment of carrier rocket |
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| CN201510156550.7A CN104698266A (en) | 2015-04-03 | 2015-04-03 | Ground electrical power source parameter sampling equipment of carrier rocket |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112067081A (en) * | 2020-07-14 | 2020-12-11 | 上海宇航***工程研究所 | Method for monitoring additional parameters before launching of carrier rocket |
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Cited By (2)
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| CN112067081A (en) * | 2020-07-14 | 2020-12-11 | 上海宇航***工程研究所 | Method for monitoring additional parameters before launching of carrier rocket |
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Application publication date: 20150610 |