CN109391286A - Bid and purchase process information management system - Google Patents
Bid and purchase process information management system Download PDFInfo
- Publication number
- CN109391286A CN109391286A CN201811453450.0A CN201811453450A CN109391286A CN 109391286 A CN109391286 A CN 109391286A CN 201811453450 A CN201811453450 A CN 201811453450A CN 109391286 A CN109391286 A CN 109391286A
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- triode
- placing device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H1/00—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network
- H03H1/02—Constructional details of impedance networks whose electrical mode of operation is not specified or applicable to more than one type of network of RC networks, e.g. integrated networks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H5/00—One-port networks comprising only passive electrical elements as network components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Networks Using Active Elements (AREA)
Abstract
The invention discloses bid and purchase process information management systems, including signal input circuit, frequency modulation rectification circuit and filtering output circuit, the signal input circuit receives the signal that controlling terminal in bid and purchase process information management system receives input terminal in data-signal signal transmission passage, the frequency modulation rectification circuit receives the signal of signal input circuit output, and with transport and placing device AR1 and triode Q1 ~ triode Q4 composition FM circuit to signal frequency modulation, transport and placing device AR2 is used simultaneously, transport and placing device AR3 and transport and placing device AR4 and capacitor C4, resistance R9 forms rectification circuit to signal rectification processing, and use triode Q5, triode Q6 feedback regulation rectification circuit output amplitude, the last filtering output circuit is with transport and placing device AR5 with phase amplified signal, transport and placing device is used simultaneously It is exported after AR6 and capacitor C5, resistance R14 composition filter circuit filtering, realizes and signal is calibrated automatically, improve the stability of signal, it is therefore prevented that signal frequency modulation and distortion.
Description
Technical field
The present invention relates to information management system technical fields, more particularly to bid and purchase process information management system.
Background technique
21 century is the era of knowledge-driven economy characterized by " informationization ", is related to all trades and professions, and process of bidding and purchasing
Information is also handled by " informationization ", and process information management system of bidding and purchasing is instead of traditional artificial or Simple Calculation machine information
Processing method, realize bid and purchase procedural information unify intelligent processing, improve information safety and confidentiality and
The treatment effeciency of data, however in practice, since bid and purchase procedural information data are more and more lengthy and jumbled, cause to bid and purchase
It is more lengthy and jumbled to receive data-signal simultaneously for controlling terminal in journey information management system, and procedural information pipe of bidding and purchasing can occur often
The data-signal that controlling terminal receives in reason system will appear frequency hopping, or even the phenomenon that distortion, bid and purchase process be caused to be believed
The disorder for ceasing management system, brings serious error to entire bid and purchase process, or even will cause the loss of project for bidding.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide bid and purchase process letters
Cease management system, have be skillfully constructed, the characteristic of human oriented design, effectively to bid and purchase process information management system in control
Terminal processed receives data-signal and is calibrated automatically with the signal in signal transmission passage, improves the stability of signal, it is therefore prevented that letter
Number frequency hopping and distortion.
Its technical solution solved is process information management system of bidding and purchasing, including the rectification of signal input circuit, frequency modulation
Circuit and filtering output circuit, the signal input circuit receive controlling terminal in bid and purchase process information management system and receive
The signal of input terminal in data-signal signal transmission passage forms π type filter circuit with inductance L1 and capacitor C1, capacitor C2
Filtering, the frequency modulation rectification circuit receives the signal of signal input circuit output, and uses transport and placing device AR1 and triode Q1 ~ tri-
Pole pipe Q4 forms FM circuit to signal frequency modulation, while with transport and placing device AR2, transport and placing device AR3 and transport and placing device AR4 and capacitor
C4, resistance R9 form rectification circuit to signal rectification processing, and use triode Q5, triode Q6 feedback regulation rectification circuit
Output amplitude, the last filtering output circuit uses transport and placing device AR5 with phase amplified signal, while using transport and placing device AR6
It is exported with after capacitor C5, resistance R14 composition filter circuit filtering, that is to say and controlled in input bid and purchase process information management system
Terminal processed receives in data-signal signal transmission passage；
The frequency modulation rectification circuit includes transport and placing device AR1, one end of the anti-phase input terminating resistor R2 of transport and placing device AR1, resistance R2
Other end ground connection, one end of the homophase input terminating resistor R1 of transport and placing device AR1, the output of transport and placing device AR1 terminates triode Q2
Base stage and resistance R3 one end, the other end and resistance R4 of another terminating resistor R3 of resistance R1, one end of resistance R5 and
The emitter of the collector of triode Q1, triode Q5, the other end and triode Q1 of the collector connecting resistance R4 of triode Q2
Base stage, the base stage of triode Q4, triode Q6 collector, the emitter of triode Q2 connects the collector and two of triode Q4
The anode of pole pipe D3, the grounded collector of triode Q4, the emitter of triode Q4 connect the emitter and capacitor C3 of triode Q3
One end, the other end of the collector connecting resistance R5 of triode Q3, the emitter of triode Q1 connects the base stage of triode Q3, capacitor
The non-inverting input terminal of another termination transport and placing device AR2 of C3, one end anti-phase input terminating resistor R6 ~ resistance R8 of transport and placing device AR2
It is grounded with the other end of the base stage of triode Q6, resistance R6, the non-inverting input terminal and three of another termination transport and placing device AR3 of resistance R7
The base stage of pole pipe Q5, the output end of anti-phase input termination transport and placing device AR3, the collector of triode Q5 and three poles of transport and placing device AR3
One end of the emitter of pipe Q6, the output end of transport and placing device AR4 and resistance R11, resistance R9, capacitor C4, the other end of resistance R8
Meet the non-inverting input terminal of transport and placing device AR4 and the other end of resistance R9, capacitor C4, the anti-phase input terminating resistor R10 of transport and placing device AR4
One end and resistance R11 the other end, the cathode of another terminating diode D3 of resistance R10.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, with transport and placing device AR1 and triode Q1 ~ triode Q4 composition FM circuit to signal frequency modulation, transport and placing device AR1 is to signal
Power amplification, amplified signal frequency improve triode Q1 ~ triode Q4 frequency modulation precision, and triode Q1, triode Q3 inhibit high frequency
Signal, triode Q2, triode Q4 filter out low frequency signal, play the effect of frequency modulation, while using transport and placing device AR2, transport and placing device AR3
Signal rectification is handled with transport and placing device AR4 and capacitor C4, resistance R9 composition rectification circuit, transport and placing device AR2 amplified signal power,
The conduction loss of thermal compensation signal, transport and placing device AR4 and capacitor C4, resistance R9 improve the stability of signal to signal rectification.
2. triode Q5, triode Q6 feedback regulation rectification circuit output amplitude are used, when frequency modulation rectification circuit is defeated
When signal is abnormal high level signal out, triode Q5 conducting, feedback signal to triode Q1, triode Q3 base potential, drop
The conducting current potential of low triode Q1, triode Q3, when frequency modulation rectification circuit output signal is abnormal low level signal, triode
Q6 is connected, and at feedback signal to triode Q4 base potential, improves triode Q4 and current potential is connected, play further calibration signal
Effect realizes the automatic calibration to signal of signal, improves the stability of signal, it is therefore prevented that the shape of signal frequency hopping and distortion
Condition.
Detailed description of the invention
Fig. 1 is the module map of present invention bid and purchase process information management system.
Fig. 2 is the schematic diagram of present invention bid and purchase process information management system.
Fig. 3 is the schematic diagram of frequency modulation rectification circuit in present invention bid and purchase process information management system.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 3
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Embodiment one, process information management system of bidding and purchasing, including signal input circuit, frequency modulation rectification circuit and filtering
Output circuit, the signal input circuit receive controlling terminal in bid and purchase process information management system and receive data-signal use
The signal of input terminal in signal transmission passage, it is described with inductance L1 and capacitor C1, capacitor C2 composition π type filter circuit filtering
Frequency modulation rectification circuit receives the signal of signal input circuit output, and with transport and placing device AR1 and triode Q1 ~ triode Q4 composition
FM circuit uses transport and placing device AR2, transport and placing device AR3 and transport and placing device AR4 and capacitor C4, resistance R9 group to signal frequency modulation
At rectification circuit to signal rectification processing, and shake with triode Q5, triode Q6 feedback regulation rectification circuit output signal
Width, the last filtering output circuit uses transport and placing device AR5 with phase amplified signal, while using transport and placing device AR6 and capacitor C5, electricity
It is exported after resistance R14 composition filter circuit filtering, that is to say that controlling terminal receives in input bid and purchase process information management system
In data-signal signal transmission passage；
The frequency modulation rectification circuit is with transport and placing device AR1 and triode Q1 ~ triode Q4 composition FM circuit to signal frequency modulation, fortune
It puts device AR1 to amplify signal power, amplified signal frequency improves triode Q1 ~ triode Q4 frequency modulation precision, triode Q1, three
Pole pipe Q3 inhibits high-frequency signal, and triode Q2, triode Q4 filter out low frequency signal, plays the effect of frequency modulation, while using amplifier
Device AR2, transport and placing device AR3 and transport and placing device AR4 and capacitor C4, resistance R9 composition rectification circuit are to signal rectification processing, transport and placing device
AR2 amplified signal power, the conduction loss of thermal compensation signal, transport and placing device AR4 and capacitor C4, resistance R9 improve letter to signal rectification
Number stability, and use triode Q5, triode Q6 feedback regulation rectification circuit output amplitude, when frequency modulation rectified current
When road output signal is abnormal high level signal, triode Q5 conducting, feedback signal to triode Q1, triode Q3 base stage electricity
Position reduces the conducting current potential of triode Q1, triode Q3, when frequency modulation rectification circuit output signal is abnormal low level signal,
Triode Q6 is connected, and at feedback signal to triode Q4 base potential, improves triode Q4 and current potential is connected, play further calibration
The effect of signal realizes the automatic calibration to signal of signal, improves the stability of signal, it is therefore prevented that signal frequency hopping and mistake
Genuine situation, one end of the anti-phase input terminating resistor R2 of transport and placing device AR1, the other end ground connection of resistance R2, transport and placing device AR1's is same
Mutually input one end of terminating resistor R1, the base stage of the output termination triode Q2 of transport and placing device AR1 and one end of resistance R3, resistance R1
Another terminating resistor R3 the other end and resistance R4, the collector of one end of resistance R5 and triode Q1, triode Q5
Emitter, the other end and the base stage of triode Q1, the base stage of triode Q4, triode of the collector connecting resistance R4 of triode Q2
The collector of Q6, the emitter of triode Q2 connect the collector of triode Q4 and the anode of diode D3, the current collection of triode Q4
Pole ground connection, the emitter of triode Q4 connect the emitter of triode Q3 and one end of capacitor C3, and the collector of triode Q3 connects electricity
The other end of R5 is hindered, the emitter of triode Q1 connects the base stage of triode Q3, the same phase of another termination transport and placing device AR2 of capacitor C3
Input terminal, anti-phase input terminating resistor R6 ~ one end of resistance R8 of transport and placing device AR2 and the base stage of triode Q6, resistance R6's is another
One end ground connection, the non-inverting input terminal of another termination transport and placing device AR3 of resistance R7 and the base stage of triode Q5, transport and placing device AR3's is anti-
Mutually the input termination output end of transport and placing device AR3, the emitter of the collector of triode Q5 and triode Q6, transport and placing device AR4 it is defeated
One end of outlet and resistance R11, resistance R9, capacitor C4, the non-inverting input terminal and electricity of another termination transport and placing device AR4 of resistance R8
Hinder the other end of R9, capacitor C4, one end of the anti-phase input terminating resistor R10 of transport and placing device AR4 and the other end of resistance R11, electricity
Hinder the cathode of another terminating diode D3 of R10.
Embodiment two, on the basis of example 1, the filtering output circuit is with transport and placing device AR5 with mutually amplification letter
Number, while with being exported after transport and placing device AR6 and capacitor C5, resistance R14 composition filter circuit filtering, improve the anti-interference of signal
Property, it that is to say that controlling terminal receives in data-signal signal transmission passage in input bid and purchase process information management system,
The output end of the homophase input termination transport and placing device AR4 of transport and placing device AR5, anti-phase input terminating resistor R12, the resistance of transport and placing device AR5
One end of R13 and the output end of transport and placing device AR5, the other end ground connection of resistance R12, another terminating resistor R14, the electricity of resistance R13
One end of R15, one end of another termination capacitor C5 of resistance R15 and the non-inverting input terminal of transport and placing device AR6 are hindered, capacitor C5's is another
End ground connection, one end of the anti-phase input terminating resistor R16 of transport and placing device AR6, resistance R17, the other end ground connection of resistance R16, resistance
The output end of another termination transport and placing device AR6 of R17 and the other end and signal output port of resistance R14.
Implement three, on the basis of example 1, the signal input circuit receives bid and purchase process information management system
Controlling terminal receives the signal of input terminal in data-signal signal transmission passage in system, with inductance L1 and capacitor C1, capacitor
C2 forms the filtering of π type filter circuit, improves the anti-interference of signal, the cathode and signal of a termination voltage-stabiliser tube D1 of inductance L1
One end of input terminal and capacitor C1, the plus earth of voltage-stabiliser tube D1, the other end ground connection of capacitor C1, another termination of inductance L1
The anode of diode D2 and one end of capacitor C2, the other end ground connection of capacitor C2, the cathode of diode D2 connect the same of transport and placing device AR1
Phase input terminal.
When the present invention is specifically used, process information management system of bidding and purchasing, including signal input circuit, frequency modulation rectified current
Road and filtering output circuit, the signal input circuit receive controlling terminal in bid and purchase process information management system and receive number
It is believed that number with the signal of input terminal in signal transmission passage, with inductance L1 and capacitor C1, capacitor C2 composition π type filter circuit filter
Wave, the frequency modulation rectification circuit is with transport and placing device AR1 and triode Q1 ~ triode Q4 composition FM circuit to signal frequency modulation, fortune
It puts device AR1 to amplify signal power, amplified signal frequency improves triode Q1 ~ triode Q4 frequency modulation precision, triode Q1, three
Pole pipe Q3 inhibits high-frequency signal, and triode Q2, triode Q4 filter out low frequency signal, plays the effect of frequency modulation, while using amplifier
Device AR2, transport and placing device AR3 and transport and placing device AR4 and capacitor C4, resistance R9 composition rectification circuit are to signal rectification processing, transport and placing device
AR2 amplified signal power, the conduction loss of thermal compensation signal, transport and placing device AR4 and capacitor C4, resistance R9 improve letter to signal rectification
Number stability, and use triode Q5, triode Q6 feedback regulation rectification circuit output amplitude, when frequency modulation rectified current
When road output signal is abnormal high level signal, triode Q5 conducting, feedback signal to triode Q1, triode Q3 base stage electricity
Position reduces the conducting current potential of triode Q1, triode Q3, when frequency modulation rectification circuit output signal is abnormal low level signal,
Triode Q6 is connected, and at feedback signal to triode Q4 base potential, improves triode Q4 and current potential is connected, play further calibration
The effect of signal realizes the automatic calibration to signal of signal, improves the stability of signal, it is therefore prevented that signal frequency hopping and mistake
Genuine situation, the last filtering output circuit uses transport and placing device AR5 with phase amplified signal, while using transport and placing device AR6 and electricity
It is exported after holding C5, resistance R14 composition filter circuit filtering, that is to say and controlled eventually in input bid and purchase process information management system
End receives in data-signal signal transmission passage.
The above is that further detailed description of the invention, and it cannot be said that the present invention in conjunction with specific embodiment
Specific implementation is limited only to this；Belonging to the present invention and for those skilled in the technology concerned, it is being based on skill of the present invention
Under the premise of art scheme thinking, it is made expansion and operating method, data replacement, should all fall in the scope of the present invention it
It is interior.
Claims (3)
1. process information management system of bidding and purchasing, including signal input circuit, frequency modulation rectification circuit and filtering output circuit,
It is characterized in that, the signal input circuit receives controlling terminal in bid and purchase process information management system and receives data-signal use
The signal of input terminal in signal transmission passage, it is described with inductance L1 and capacitor C1, capacitor C2 composition π type filter circuit filtering
Frequency modulation rectification circuit receives the signal of signal input circuit output, and with transport and placing device AR1 and triode Q1 ~ triode Q4 composition
FM circuit uses transport and placing device AR2, transport and placing device AR3 and transport and placing device AR4 and capacitor C4, resistance R9 group to signal frequency modulation
At rectification circuit to signal rectification processing, and shake with triode Q5, triode Q6 feedback regulation rectification circuit output signal
Width, the last filtering output circuit uses transport and placing device AR5 with phase amplified signal, while using transport and placing device AR6 and capacitor C5, electricity
It is exported after resistance R14 composition filter circuit filtering, that is to say that controlling terminal receives in input bid and purchase process information management system
In data-signal signal transmission passage；
The frequency modulation rectification circuit includes transport and placing device AR1, one end of the anti-phase input terminating resistor R2 of transport and placing device AR1, resistance R2
Other end ground connection, one end of the homophase input terminating resistor R1 of transport and placing device AR1, the output of transport and placing device AR1 terminates triode Q2
Base stage and resistance R3 one end, the other end and resistance R4 of another terminating resistor R3 of resistance R1, one end of resistance R5 and
The emitter of the collector of triode Q1, triode Q5, the other end and triode Q1 of the collector connecting resistance R4 of triode Q2
Base stage, the base stage of triode Q4, triode Q6 collector, the emitter of triode Q2 connects the collector and two of triode Q4
The anode of pole pipe D3, the grounded collector of triode Q4, the emitter of triode Q4 connect the emitter and capacitor C3 of triode Q3
One end, the other end of the collector connecting resistance R5 of triode Q3, the emitter of triode Q1 connects the base stage of triode Q3, capacitor
The non-inverting input terminal of another termination transport and placing device AR2 of C3, one end anti-phase input terminating resistor R6 ~ resistance R8 of transport and placing device AR2
It is grounded with the other end of the base stage of triode Q6, resistance R6, the non-inverting input terminal and three of another termination transport and placing device AR3 of resistance R7
The base stage of pole pipe Q5, the output end of anti-phase input termination transport and placing device AR3, the collector of triode Q5 and three poles of transport and placing device AR3
One end of the emitter of pipe Q6, the output end of transport and placing device AR4 and resistance R11, resistance R9, capacitor C4, the other end of resistance R8
Meet the non-inverting input terminal of transport and placing device AR4 and the other end of resistance R9, capacitor C4, the anti-phase input terminating resistor R10 of transport and placing device AR4
One end and resistance R11 the other end, the cathode of another terminating diode D3 of resistance R10.
2. bid and purchase process information management system as described in claim 1, which is characterized in that the filtering output circuit includes
The output end of the homophase input termination transport and placing device AR4 of transport and placing device AR5, transport and placing device AR5, the anti-phase input of transport and placing device AR5 terminate electricity
Hinder R12, one end of resistance R13 and the output end of transport and placing device AR5, the other end ground connection of resistance R12, another termination of resistance R13
One end of resistance R14, resistance R15, one end of another termination capacitor C5 of resistance R15 and the non-inverting input terminal of transport and placing device AR6, electricity
Hold the other end ground connection of C5, one end of the anti-phase input terminating resistor R16 of transport and placing device AR6, resistance R17, the other end of resistance R16
Ground connection, the output end of another termination transport and placing device AR6 of resistance R17 and the other end and signal output port of resistance R14.
3. bid and purchase process information management system as described in claim 1, which is characterized in that the signal input circuit includes
The cathode of a termination voltage-stabiliser tube D1 of inductance L1, inductance L1 and one end of signal input part and capacitor C1, voltage-stabiliser tube D1 is just
Pole ground connection, the other end ground connection of capacitor C1, the anode of another terminating diode D2 of inductance L1 and one end of capacitor C2, capacitor C2
Other end ground connection, the cathode of diode D2 connects the non-inverting input terminal of transport and placing device AR1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453450.0A CN109391286B (en) | 2018-11-30 | 2018-11-30 | Bidding purchasing process information management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811453450.0A CN109391286B (en) | 2018-11-30 | 2018-11-30 | Bidding purchasing process information management system |
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| Publication Number | Publication Date |
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| CN109391286A true CN109391286A (en) | 2019-02-26 |
| CN109391286B CN109391286B (en) | 2019-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811453450.0A Active CN109391286B (en) | 2018-11-30 | 2018-11-30 | Bidding purchasing process information management system |
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| Country | Link |
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| CN (1) | CN109391286B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110946572A (en) * | 2019-12-18 | 2020-04-03 | 郑州轻工业大学 | Wireless Electrocardiogram (ECG) acquisition monitoring device |
| CN111953433A (en) * | 2020-08-31 | 2020-11-17 | 郑州铁路职业技术学院 | Railway interlocking signal management system |
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| CN101345487A (en) * | 2008-05-21 | 2009-01-14 | 英飞特电子（杭州）有限公司 | Primary sampling current controlled synchronous commutation driving circuit |
| CN101867365A (en) * | 2010-04-28 | 2010-10-20 | 广州金升阳科技有限公司 | Circuit for converting direct-current positive and negative bipolar signal into unipolar signal through isolation |
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| CN111953433B (en) * | 2020-08-31 | 2021-06-08 | 郑州铁路职业技术学院 | Railway interlocking signal management system |
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| Publication number | Publication date |
|---|---|
| CN109391286B (en) | 2019-12-20 |
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