CN203414149U - Power supply circuit for flowmeter online detection data collection and transmission device - Google Patents
Power supply circuit for flowmeter online detection data collection and transmission device Download PDFInfo
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- CN203414149U CN203414149U CN201320540362.0U CN201320540362U CN203414149U CN 203414149 U CN203414149 U CN 203414149U CN 201320540362 U CN201320540362 U CN 201320540362U CN 203414149 U CN203414149 U CN 203414149U
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Abstract
The utility model discloses a power supply circuit for a flowmeter online detection data collection and transmission device. The power supply circuit comprises an alternating-current and direct-current conversion circuit module, and a DTU (data transfer unit) power supply circuit module, a microprocessor power supply circuit module, a density gauge signal collection power supply circuit module, a flowmeter signal collection power supply circuit module, a transmitter signal collection power supply circuit module and a volume pipe signal collection power supply circuit module which are connected with the alternating-current and direct-current conversion circuit module, wherein the alternating-current and direct-current conversion circuit module is used for converting the alternating-current power outputted by an alternating-current power supply into direct-current power, the output end of the DTU power supply circuit module is connected with a COM power supply circuit module, and the output end of the COM power supply circuit module is connected with a WIFI (wireless fidelity) power supply circuit module. The power supply circuit is simple in structure, reasonable in design, convenient to realize, strong in surge shock resistance, strong in high-frequency ripple wave interference resistance, convenient to repair, capable of improving the detection efficiency of a flowmeter, consumes less labor and material resource, and has strong practicability, good application effect and convenience in popularization and use.
Description
Technical field
The utility model relates to meter proof technical field, especially relates to the data acquisition of a kind of flowmeter in-line calibration and transmitting device power circuit.
Background technology
In the measurement verification system of oil field, chemical plant, harbour and R&D institution, the flowmeter measuring instrument that is absolutely necessary, in order to guarantee the accuracy of metering, to flowmeter, to carry out regular calibration, piston type standard volume pipe is the most frequently used calibration reference device, and it has, and measuring accuracy is high, range ability is wide, volume is little, place takies the plurality of advantages such as few.But, when available technology adopting piston type standard volume pipe carries out meter proof, also needing people is the data that read instrument (such as volume pipe intake pressure measuring instrument, volume pipe inlet temperature measuring instrument, distance rod temperature instrument, nitrogen pressure transmitter and the hydraulic fluid pressure measuring instrument etc.) demonstration being arranged on piston type standard volume pipe, there is reading error, and need repeatedly duplicate reading, labor intensive material resources are large, and meter proof efficiency is low; In addition, flowmeter in-line calibration of the prior art data acquisition and the transmission modes that adopt wire communication more, need to connect the communications cable, after repeatedly repeating to connect, easily there is the potential faults that connects unreliable or loose contact, reduced site operation personnel's work efficiency, and Mobile portable is poor, data transmission credibility is poor.In order to overcome the above problems, someone has developed the data acquisition of flowmeter in-line calibration and transmitting device, this device is by density of setting meter signal acquisition circuit module, flow meter signal Acquisition Circuit module, transducer signal gathers power circuit module and volume pipe signal acquisition circuit module, can be to densitometer signal, flow meter signal, the signal of the signal of each transmitter arranging in volume pipe and volume pipe calibrating flowmeter gathers and exports to microprocessor module, the signal that micro controller module can also be received is by WIFI wireless transport module, DTU wireless transport module or COM serial interface circuit module are sent on computing machine or server, for staff at the scene or long-rangely check intuitively, no longer need artificially repeatedly to repeat to read the data of the instrument demonstration being arranged on piston type standard volume pipe, avoided the error of artificial reading, manpower and materials have been saved, and improved meter proof efficiency, WIFI wireless transport module and DTU wireless transport module that this device arranges, can utilize existing maturation and stable GPRS or CDMA mobile network, without laying complicated communication line, not only can realize data wireless transmission, can also realize remote data transmission, for realizing the strange land monitoring management of volume pipe equipment, provide possibility, data rate is fast and reliability is high, can reduce attended operation on site operation personnel's cable, reduce the potential faults avoided the unreliable or loose contact of the connection that exists in repeatedly repeating to connect due to the cable connector of passing by the past, thereby site operation personnel's work efficiency and Mobile portable and handling have been improved.But, in prior art, the structure of the power supply of the data acquisition of flowmeter in-line calibration and transmitting device is also unreasonable, employing is powered to the mode of the unified power supply of each electricity consumption module in device, once power circuit breaks down, the data acquisition of whole flowmeter in-line calibration and transmitting device just can not normally use, and maintenance difficulty, can not find easily rapidly trouble spot and keep in repair, reduced work efficiency, and maintenance takes time and effort.
Utility model content
Technical problem to be solved in the utility model is, for above-mentioned deficiency of the prior art, to provide the data acquisition of a kind of flowmeter in-line calibration and transmitting device power circuit, and it is simple in structure, reasonable in design, it is convenient to realize, and antisurge impact capacity is strong, and ripple high frequency interference adaptibility to response is strong, be convenient to maintenance, can improve meter proof efficiency, expend less manpower and materials, practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the data acquisition of a kind of flowmeter in-line calibration and transmitting device power circuit, the data acquisition of described flowmeter in-line calibration and transmitting device comprise microprocessor module and the data storage circuitry module of joining with described microprocessor module, WIFI wireless transport module, DTU wireless transport module and COM serial interface circuit module, the input end of described microprocessor module is connected to densitometer signal acquisition circuit module, flow meter signal Acquisition Circuit module, transducer signal Acquisition Circuit module and the volume pipe signal acquisition circuit module for the signal of piston type liquid standard pipe prover calibrating flowmeter is gathered, on described piston type liquid standard pipe prover, be provided with the first photoelectric detection switch for the initial position of metering piston is detected, for the second photoelectric detection switch that the calibrating starting position of metering piston is detected and the 3rd photoelectric detection switch detecting for the calibrating end position to metering piston, described the first photoelectric detection switch, the second photoelectric detection switch and the 3rd photoelectric detection switch all join with described volume pipe signal acquisition circuit module, it is characterized in that: described power circuit comprises for the alternating current of AC power output is converted to galvanic ac-dc converter circuit module, and the DTU power circuit module of joining with ac-dc converter circuit module, power supply of microprocessor circuit module, densitometer signals collecting power circuit module, flow meter signal gathers power circuit module, transducer signal gathers power circuit module and volume pipe signals collecting power circuit module, the output terminal of described DTU power circuit module is connected to COM power circuit module, the output terminal of described COM power circuit module is connected to WIFI power circuit module.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described ac-dc converter circuit module comprises AC/DC power module DFA30-S24N, fuse FS1 and thermistor RH1, and polar capacitor C3 and C4, the pin 1 of described AC/DC power module DFA30-S24N joins by the second alternating current output terminals A C2 of fuse FS1 and AC power, described thermistor RH1 is connected between the pin 1 and pin 2 of described AC/DC power module DFA30-S24N, the equal ground connection of earth terminal FG of the pin 3 of described AC/DC power module DFA30-S24N and AC power, the pin 4 of described AC/DC power module DFA30-S24N joins for the output terminal+24V of described ac-dc converter circuit module and with the positive pole of polar capacitor C3 and the positive pole of polar capacitor C4, the pin 6 of described AC/DC power module DFA30-S24N, the equal ground connection of negative pole of the negative pole of polar capacitor C3 and polar capacitor C4.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, it is characterized in that: described DTU power circuit module comprises chip DFB12-24S12, distributed capacitance CD1, nonpolar capacitor C 11 and C12, and polar capacitor C1, C2, C29 and C30, the pin 1 of described chip DFB12-24S12, one end of nonpolar capacitor C 11, the positive pole of the positive pole of polar capacitor C1 and polar capacitor C2 all joins with the output terminal+24V of described ac-dc converter circuit module, the other end of the pin 2 of described chip DFB12-24S12 and pin 4 and nonpolar capacitor C 11, the equal ground connection of negative pole of the negative pole of polar capacitor C1 and polar capacitor C2, described distributed capacitance CD1 is connected between the pin 2 and pin 4 of described chip DFB12-24S12, the pin 5 of described chip DFB12-24S12 be described DTU power circuit module output terminal DTU+12V and with one end of nonpolar capacitor C 12, the positive pole of the positive pole of polar capacitor C29 and polar capacitor C30 joins, the other end of described nonpolar capacitor C 12, the equal ground connection of negative pole of the negative pole of polar capacitor C29 and polar capacitor C30.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, it is characterized in that: described power supply of microprocessor circuit module comprises chip AX3007, the first chip AS1117-3.3V, schottky diode D1, inductance L 1, polar capacitor C5, C6, C32, C34, C35 and C36, nonpolar capacitor C 18, C20, C21 and C22, and resistance R F1 and resistance R S1, the pin 1 of described chip AX3007, one end of nonpolar capacitor C 18, the positive pole of the positive pole of polar capacitor C6 and polar capacitor C5 all joins with the output terminal+24V of described ac-dc converter circuit module, the pin 4 of described chip AX3007, pin 5, pin 6, pin 7 and pin 8 and nonpolar capacitor C 18 other ends, polar capacitor C6 negative pole and the equal ground connection of polar capacitor C5 negative pole, pin 2 and the negative pole of schottky diode D1 and one end of inductance L 1 of described chip AX3007 join, the positive pole of the other end of described inductance L 1 and polar capacitor C32, the positive pole of polar capacitor C34, one end of one end of nonpolar capacitor C 20 and resistance R F1 joins, the pin 3 of the other end of described resistance R F1 and described chip AX3007 and one end of resistance R S1 join, the positive pole of described schottky diode D1, the negative pole of polar capacitor C32, the negative pole of polar capacitor C34, the equal ground connection of the other end of the other end of nonpolar capacitor C 20 and resistance R S1, pin 3 and one end of nonpolar capacitor C 21 and the positive pole of polar capacitor C35 of described the first chip AS1117-3.3V join, the equal ground connection of negative pole of the pin 1 of described the first chip AS1117-3.3V, the other end of nonpolar capacitor C 21 and polar capacitor C35, the pin 2 of described the first chip AS1117-3.3V joins for the output terminals A VCC+3.3V of described power supply of microprocessor circuit module and with the positive pole of polar capacitor C36 and one end of nonpolar capacitor C 22, the equal ground connection of the other end of the negative pole of described polar capacitor C36 and nonpolar capacitor C 22.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described densitometer signals collecting power circuit module comprises the first chip DFA5-24S24 and polar capacitor C7, and nonpolar capacitor C 17 and C19; The pin 1 of described the first chip DFA5-24S24 and one end of nonpolar capacitor C 17 all join with the output terminal+24V of described ac-dc converter circuit module, the equal ground connection of the other end of the pin 2 of described the first chip DFA5-24S24 and pin 4 and nonpolar capacitor C 17, the pin 5 of described the first chip DFA5-24S24 joins for the output terminal VOA+24V of described densitometer signals collecting power circuit module and with one end of nonpolar capacitor C 19 and the positive pole of polar capacitor C7, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 19 and polar capacitor C7.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described flow meter signal gathers power circuit module and comprises the second chip DFA5-24S24 and polar capacitor C8, and nonpolar capacitor C 23 and C25; The pin 1 of described the second chip DFA5-24S24 and one end of nonpolar capacitor C 23 all join with the output terminal+24V of described ac-dc converter circuit module, the equal ground connection of the other end of the pin 2 of described the second chip DFA5-24S24 and pin 4 and nonpolar capacitor C 23, the pin 5 of described the second chip DFA5-24S24 is that described flow meter signal gathers the output terminal VOB+24V of power circuit module and joins with one end of nonpolar capacitor C 25 and the positive pole of polar capacitor C8, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 25 and polar capacitor C8.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described transducer signal gathers power circuit module and comprises the 3rd chip DFA5-24S24 and polar capacitor C9, and nonpolar capacitor C 24 and C26; The pin 1 of described the 3rd chip DFA5-24S24 and one end of nonpolar capacitor C 24 all join with the output terminal+24V of described ac-dc converter circuit module, the equal ground connection of the other end of the pin 2 of described the 3rd chip DFA5-24S24 and pin 4 and nonpolar capacitor C 24, the pin 5 of described the 3rd chip DFA5-24S24 is that described transducer signal gathers the output terminal VOC+24V of power circuit module and joins with one end of nonpolar capacitor C 26 and the positive pole of polar capacitor C9, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 26 and polar capacitor C9.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described volume pipe signals collecting power circuit module comprises four-core sheet DFA5-24S24 and polar capacitor C10, and nonpolar capacitor C 27 and C28; The pin 1 of described four-core sheet DFA5-24S24 and one end of nonpolar capacitor C 27 all join with the output terminal+24V of described ac-dc converter circuit module, the equal ground connection of the other end of the pin 2 of described four-core sheet DFA5-24S24 and pin 4 and nonpolar capacitor C 27, the pin 5 of described four-core sheet DFA5-24S24 joins for the output terminal VOD+24V of described volume pipe signals collecting power circuit module and with one end of nonpolar capacitor C 28 and the positive pole of polar capacitor C10, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 28 and polar capacitor C10.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, is characterized in that: described COM power circuit module comprises chip 7805 and nonpolar capacitor C 31, and polar capacitor C13 and C14; The pin 1 of described chip 7805 and one end of nonpolar capacitor C 13 all join with the output terminal DTU+12V of described DTU power circuit module, the equal ground connection of the other end of the pin 2 of described chip 7805 and nonpolar capacitor C 13, the pin 3 of described chip 7805 joins for the output terminal COM+5V of described COM power circuit module and with the positive pole of polar capacitor C31 and one end of nonpolar capacitor C 14, the equal ground connection of the other end of the negative pole of described polar capacitor C31 and nonpolar capacitor C 14.
Above-mentioned a kind of flowmeter in-line calibration data acquisition and transmitting device power circuit, it is characterized in that: described WIFI power circuit module comprises the second chip AS1117-3.3V, nonpolar capacitor C 15 and polar capacitor C33, the pin 3 of described the second chip AS1117-3.3V joins with the output terminal COM+5V of described COM power circuit module, the pin 2 of described the second chip AS1117-3.3V joins for the output terminal WIFI+3.3V of described WIFI power circuit module and with one end of nonpolar capacitor C 15 and the positive pole of polar capacitor C33, the pin 1 of described the second chip AS1117-3.3V, the equal ground connection of negative pole of the other end of nonpolar capacitor C 15 and polar capacitor C33.
The utility model compared with prior art has the following advantages:
1, the utility model circuit structure is simple, reasonable in design, and it is convenient to realize.
2, the output of the Power supply of each circuit module between the utility model and microprocessor module is relatively independent, so there is short circuit and fault regardless of the power supply that is which module, all do not affect the steady operation of the data acquisition of flowmeter in-line calibration and transmitting device, and in power circuit, also designed isolation, make the antisurge impact capacity of this power circuit strong, ripple high frequency interference adaptibility to response is strong.
3, in the utility model power supply of microprocessor circuit module, adopted asynchronous DC decompression converter chip AX3007; this chip internal has complete system protection function and comprises short-circuit protection (SCP), over-temperature protection and excess current protective function; and original frequency can be reduced when short-circuit protection; while reducing short circuit, chip institute consumed energy, has avoided chip overheating.
4, of the present utility model easy to use, once there is fault in power circuit, the data that show, just can judge is that fault has appearred in which part power circuit, maintenance is convenient, can find easily rapidly trouble spot and keep in repair, maintenance efficiency is high, and can improve meter proof efficiency, expends less manpower and materials.
5, of the present utility model practical, result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, reasonable in design, and it is convenient to realize, antisurge impact capacity is strong, and ripple high frequency interference adaptibility to response is strong, is convenient to maintenance, can improve meter proof efficiency, expend less manpower and materials, practical, result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Fig. 3 is that the utility model is the schematic block circuit diagram of the data acquisition of flowmeter in-line calibration and transmitting device power supply.
Description of reference numerals:
1-microprocessor module; 2-AC power;
3-COM serial interface circuit module; 4-densitometer signal acquisition circuit module;
5-flow meter signal Acquisition Circuit module; 6-transducer signal Acquisition Circuit module;
7-volume pipe signal acquisition circuit module; The 8-the first photoelectric detection switch;
The 9-the second photoelectric detection switch; The 10-the three photoelectric detection switch;
11-data storage circuitry module; 12-WIFI wireless transport module;
13-DTU wireless transport module; 14-ac-dc converter circuit module;
15-DTU power circuit module; 16-power supply of microprocessor circuit module;
17-densitometer signals collecting power circuit module; 18-flow meter signal gathers power circuit module;
19-transducer signal gathers power circuit module; 20-volume pipe signals collecting power circuit module;
21-COM power circuit module; 22-WIFI power circuit module.
Embodiment
As shown in figures 1 and 3, flowmeter in-line calibration described in the utility model data acquisition and transmitting device power circuit, the data acquisition of described flowmeter in-line calibration and transmitting device comprise microprocessor module 1 and the data storage circuitry module 11 of joining with described microprocessor module 1, WIFI wireless transport module 12, DTU wireless transport module 13 and COM serial interface circuit module 3, the input end of described microprocessor module 1 is connected to densitometer signal acquisition circuit module 4, flow meter signal Acquisition Circuit module 5, transducer signal gathers power circuit module 6 and the volume pipe signal acquisition circuit module 7 for the signal of piston type liquid standard pipe prover calibrating flowmeter is gathered, on described piston type liquid standard pipe prover, be provided with the first photoelectric detection switch 8 for the initial position of metering piston is detected, for the second photoelectric detection switch 9 that the calibrating starting position of metering piston is detected and the 3rd photoelectric detection switch 10 detecting for the calibrating end position to metering piston, described the first photoelectric detection switch 8, the second photoelectric detection switch 9 and the 3rd photoelectric detection switch 10 all join with described volume pipe signal acquisition circuit module 7, described power circuit comprises for the alternating current of AC power 2 outputs is converted to galvanic ac-dc converter circuit module 14, and the DTU power circuit module 15 of joining with ac-dc converter circuit module 14, power supply of microprocessor circuit module 16, densitometer signals collecting power circuit module 17, flow meter signal gathers power circuit module 18, transducer signal gathers power circuit module 19 and volume pipe signals collecting power circuit module 20, the output terminal of described DTU power circuit module 15 is connected to COM power circuit module 21, the output terminal of described COM power circuit module 21 is connected to WIFI power circuit module 22.
As shown in Figure 2, in the present embodiment, described ac-dc converter circuit module 14 comprises AC/DC power module DFA30-S24N, fuse FS1 and thermistor RH1, and polar capacitor C3 and C4, the pin 1 of described AC/DC power module DFA30-S24N joins by the second alternating current output terminals A C2 of fuse FS1 and AC power 2, described thermistor RH1 is connected between the pin 1 and pin 2 of described AC/DC power module DFA30-S24N, the equal ground connection of earth terminal FG of the pin 3 of described AC/DC power module DFA30-S24N and AC power 2, the pin 4 of described AC/DC power module DFA30-S24N joins for the output terminal+24V of described ac-dc converter circuit module 14 and with the positive pole of polar capacitor C3 and the positive pole of polar capacitor C4, the pin 6 of described AC/DC power module DFA30-S24N, the equal ground connection of negative pole of the negative pole of polar capacitor C3 and polar capacitor C4.The AC/DC power module DFA30-S24N that Beijing Xin Dafei electronic technology development corporation, Ltd. produces can convert the 220V alternating current of AC power 2 outputs to the primary power of direct current 24V, 1.25A.
As shown in Figure 2, in the present embodiment, described DTU power circuit module 15 comprises chip DFB12-24S12, distributed capacitance CD1, nonpolar capacitor C 11 and C12, and polar capacitor C1, C2, C29 and C30, the pin 1 of described chip DFB12-24S12, one end of nonpolar capacitor C 11, the positive pole of the positive pole of polar capacitor C1 and polar capacitor C2 all joins with the output terminal+24V of described ac-dc converter circuit module 14, the other end of the pin 2 of described chip DFB12-24S12 and pin 4 and nonpolar capacitor C 11, the equal ground connection of negative pole of the negative pole of polar capacitor C1 and polar capacitor C2, described distributed capacitance CD1 is connected between the pin 2 and pin 4 of described chip DFB12-24S12, the pin 5 of described chip DFB12-24S12 be described DTU power circuit module 15 output terminal DTU+12V and with one end of nonpolar capacitor C 12, the positive pole of the positive pole of polar capacitor C29 and polar capacitor C30 joins, the other end of described nonpolar capacitor C 12, the equal ground connection of negative pole of the negative pole of polar capacitor C29 and polar capacitor C30.
As shown in Figure 2, in the present embodiment, described power supply of microprocessor circuit module 16 comprises chip AX3007, the first chip AS1117-3.3V, schottky diode D1, inductance L 1, polar capacitor C5, C6, C32, C34, C35 and C36, nonpolar capacitor C 18, C20, C21 and C22, and resistance R F1 and resistance R S1, the pin 1 of described chip AX3007, one end of nonpolar capacitor C 18, the positive pole of the positive pole of polar capacitor C6 and polar capacitor C5 all joins with the output terminal+24V of described ac-dc converter circuit module 14, the pin 4 of described chip AX3007, pin 5, pin 6, pin 7 and pin 8 and nonpolar capacitor C 18 other ends, polar capacitor C6 negative pole and the equal ground connection of polar capacitor C5 negative pole, pin 2 and the negative pole of schottky diode D1 and one end of inductance L 1 of described chip AX3007 join, the positive pole of the other end of described inductance L 1 and polar capacitor C32, the positive pole of polar capacitor C34, one end of one end of nonpolar capacitor C 20 and resistance R F1 joins, the pin 3 of the other end of described resistance R F1 and described chip AX3007 and one end of resistance R S1 join, the positive pole of described schottky diode D1, the negative pole of polar capacitor C32, the negative pole of polar capacitor C34, the equal ground connection of the other end of the other end of nonpolar capacitor C 20 and resistance R S1, pin 3 and one end of nonpolar capacitor C 21 and the positive pole of polar capacitor C35 of described the first chip AS1117-3.3V join, the equal ground connection of negative pole of the pin 1 of described the first chip AS1117-3.3V, the other end of nonpolar capacitor C 21 and polar capacitor C35, the pin 2 of described the first chip AS1117-3.3V joins for the output terminals A VCC+3.3V of described power supply of microprocessor circuit module 16 and with the positive pole of polar capacitor C36 and one end of nonpolar capacitor C 22, the equal ground connection of the other end of the negative pole of described polar capacitor C36 and nonpolar capacitor C 22.Chip AX3007 is the asynchronous DC decompression converter of pulse-width modulation output, input voltage ranges up to 40 volts, output voltage can be adjusted according to need minimum 1.23 volts and arrive the highest 38.5 volts, high conversion usefulness (can reach 90%) and stable operating voltage can be provided, the transient response of output voltage is fast, and output capacitance is applicable to electrochemical capacitor, its inside has complete system protection function and comprises short-circuit protection (SCP), over-temperature protection and excess current protective function, and original frequency can be reduced when short-circuit protection, chip institute consumed energy while reducing short circuit, avoid chip overheating, described ac-dc converter circuit module 14 can be exported+24V voltage transitions of chip AX3007 is+5V output, then carries out secondary pressure generation 3.3V voltage as the power circuit of microprocessor module 1 by the first chip AS1117-3.3V.
As shown in Figure 2, in the present embodiment, described densitometer signals collecting power circuit module 17 comprises the first chip DFA5-24S24 and polar capacitor C7, and nonpolar capacitor C 17 and C19; The pin 1 of described the first chip DFA5-24S24 and one end of nonpolar capacitor C 17 all join with the output terminal+24V of described ac-dc converter circuit module 14, the equal ground connection of the other end of the pin 2 of described the first chip DFA5-24S24 and pin 4 and nonpolar capacitor C 17, the pin 5 of described the first chip DFA5-24S24 joins for the output terminal VOA+24V of described densitometer signals collecting power circuit module 17 and with one end of nonpolar capacitor C 19 and the positive pole of polar capacitor C7, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 19 and polar capacitor C7.
As shown in Figure 2, in the present embodiment, described flow meter signal gathers power circuit module 18 and comprises the second chip DFA5-24S24 and polar capacitor C8, and nonpolar capacitor C 23 and C25; The pin 1 of described the second chip DFA5-24S24 and one end of nonpolar capacitor C 23 all join with the output terminal+24V of described ac-dc converter circuit module 14, the equal ground connection of the other end of the pin 2 of described the second chip DFA5-24S24 and pin 4 and nonpolar capacitor C 23, the pin 5 of described the second chip DFA5-24S24 is that described flow meter signal gathers the output terminal VOB+24V of power circuit module 18 and joins with one end of nonpolar capacitor C 25 and the positive pole of polar capacitor C8, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 25 and polar capacitor C8.
As shown in Figure 2, in the present embodiment, described transducer signal gathers power circuit module 19 and comprises the 3rd chip DFA5-24S24 and polar capacitor C9, and nonpolar capacitor C 24 and C26; The pin 1 of described the 3rd chip DFA5-24S24 and one end of nonpolar capacitor C 24 all join with the output terminal+24V of described ac-dc converter circuit module 14, the equal ground connection of the other end of the pin 2 of described the 3rd chip DFA5-24S24 and pin 4 and nonpolar capacitor C 24, the pin 5 of described the 3rd chip DFA5-24S24 is that described transducer signal gathers the output terminal VOC+24V of power circuit module 19 and joins with one end of nonpolar capacitor C 26 and the positive pole of polar capacitor C9, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 26 and polar capacitor C9.
As shown in Figure 2, in the present embodiment, described volume pipe signals collecting power circuit module 20 comprises four-core sheet DFA5-24S24 and polar capacitor C10, and nonpolar capacitor C 27 and C28; The pin 1 of described four-core sheet DFA5-24S24 and one end of nonpolar capacitor C 27 all join with the output terminal+24V of described ac-dc converter circuit module 14, the equal ground connection of the other end of the pin 2 of described four-core sheet DFA5-24S24 and pin 4 and nonpolar capacitor C 27, the pin 5 of described four-core sheet DFA5-24S24 joins for the output terminal VOD+24V of described volume pipe signals collecting power circuit module 20 and with one end of nonpolar capacitor C 28 and the positive pole of polar capacitor C10, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 28 and polar capacitor C10.
As shown in Figure 2, in the present embodiment, described COM power circuit module 21 comprises chip 7805 and nonpolar capacitor C 31, and polar capacitor C13 and C14; The pin 1 of described chip 7805 and one end of nonpolar capacitor C 13 all join with the output terminal DTU+12V of described DTU power circuit module 15, the equal ground connection of the other end of the pin 2 of described chip 7805 and nonpolar capacitor C 13, the pin 3 of described chip 7805 joins for the output terminal COM+5V of described COM power circuit module 21 and with the positive pole of polar capacitor C31 and one end of nonpolar capacitor C 14, the equal ground connection of the other end of the negative pole of described polar capacitor C31 and nonpolar capacitor C 14.
As shown in Figure 2, in the present embodiment, described WIFI power circuit module 22 comprises the second chip AS1117-3.3V, nonpolar capacitor C 15 and polar capacitor C33, the pin 3 of described the second chip AS1117-3.3V joins with the output terminal COM+5V of described COM power circuit module 21, the pin 2 of described the second chip AS1117-3.3V joins for the output terminal WIFI+3.3V of described WIFI power circuit module 22 and with one end of nonpolar capacitor C 15 and the positive pole of polar capacitor C33, the pin 1 of described the second chip AS1117-3.3V, the equal ground connection of negative pole of the other end of nonpolar capacitor C 15 and polar capacitor C33.
During concrete enforcement, described microprocessor module 1 mainly consists of single-chip microcomputer MSP430F5438.Described data storage circuitry module 11 is by Flash data storage circuitry module and EEPROM data storage circuitry module composition.Described densitometer signal acquisition circuit module 4 comprise for gather densitometer output 4mA-20mA current signal current signal Acquisition Circuit module 4-1 and for gathering the first frequency pulse signal acquisition circuit module 4-2 of the frequency pulse signal of densitometer output, described current signal Acquisition Circuit module 4-1 and first frequency pulse signal acquisition circuit module 4-2 all join with described microprocessor module 1.Described flow meter signal Acquisition Circuit module 5 is for gathering the second frequency pulse signal acquisition circuit module of the frequency pulse signal of flowmeter output.It is RS-485 communication interface circuit module that described transducer signal gathers power circuit module 6.Described volume pipe signal acquisition circuit module 7 is carried out the Schmitt trigger circuit 7-1 of filter shape and is formed with the photoelectric isolating circuit 7-2 that Schmitt trigger circuit 7-1 joins by the signal for a plurality of photoelectric detection switch are exported.
When the utility model is used, ac-dc converter circuit module 52-2 converts the 220V alternating current of AC power output to the primary power of direct current 24V, 1.25A, by primary power, be dispensed to DTU power circuit module 15, microcontroller power circuit module 16, densitometer signals collecting power circuit module 17, flow meter signal collection power circuit module 18, transducer signal collection power circuit module 19 and volume pipe signals collecting power circuit module 20 again, 15 reallocation of DTU power circuit module are to COM power circuit module 21, and 21 reallocation of COM power circuit module are to WIFI power circuit module 22, by DTU power circuit module 15, be 13 power supplies of DTU wireless transport module, by power supply of microprocessor circuit module 16, it is microprocessor module 1 power supply, by densitometer signals collecting power circuit module 17, be 4 power supplies of densitometer signal acquisition circuit module, by flow meter signal, gathering power circuit module 18 is 5 power supplies of flow meter signal Acquisition Circuit module, by transducer signal, gathering power circuit module 19 powers for transducer signal gathers power circuit module 6, by volume pipe signals collecting power circuit module 20, be 7 power supplies of volume pipe signal acquisition circuit module, by COM power circuit module 21, be 3 power supplies of COM serial interface circuit module, by WIFI power circuit module 22, be 12 power supplies of WIFI wireless transport module.Due to and microprocessor module 1 between the Power supply output of each circuit module be relatively independent, so there is short circuit and fault regardless of the power supply that is which module, all do not affect the steady operation of the data acquisition of flowmeter in-line calibration and transmitting device, and in power circuit, also designed isolation, make the antisurge impact capacity of this power circuit strong, ripple high frequency interference adaptibility to response is strong.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. flowmeter in-line calibration data acquisition and transmitting device power circuit, the data acquisition of described flowmeter in-line calibration and transmitting device comprise microprocessor module (1) and the data storage circuitry module (11) of joining with described microprocessor module (1), WIFI wireless transport module (12), DTU wireless transport module (13) and COM serial interface circuit module (3), the input end of described microprocessor module (1) is connected to densitometer signal acquisition circuit module (4), flow meter signal Acquisition Circuit module (5), transducer signal gathers power circuit module (6) and the volume pipe signal acquisition circuit module (7) for the signal of piston type liquid standard pipe prover calibrating flowmeter is gathered, on described piston type liquid standard pipe prover, be provided with the first photoelectric detection switch (8) for the initial position of metering piston is detected, for the second photoelectric detection switch (9) that the calibrating starting position of metering piston is detected and the 3rd photoelectric detection switch (10) detecting for the calibrating end position to metering piston, described the first photoelectric detection switch (8), the second photoelectric detection switch (9) and the 3rd photoelectric detection switch (10) all join with described volume pipe signal acquisition circuit module (7), it is characterized in that: described power circuit comprises for the alternating current of AC power (2) output is converted to galvanic ac-dc converter circuit module (14), and the DTU power circuit module (15) of joining with ac-dc converter circuit module (14), power supply of microprocessor circuit module (16), densitometer signals collecting power circuit module (17), flow meter signal gathers power circuit module (18), transducer signal gathers power circuit module (19) and volume pipe signals collecting power circuit module (20), the output terminal of described DTU power circuit module (15) is connected to COM power circuit module (21), the output terminal of described COM power circuit module (21) is connected to WIFI power circuit module (22).
2. according to a kind of flowmeter in-line calibration claimed in claim 1 data acquisition and transmitting device power circuit, it is characterized in that: described ac-dc converter circuit module (14) comprises AC/DC power module DFA30-S24N, fuse FS1 and thermistor RH1, and polar capacitor C3 and C4, the pin 1 of described AC/DC power module DFA30-S24N joins by the second alternating current output terminals A C2 of fuse FS1 and AC power (2), described thermistor RH1 is connected between the pin 1 and pin 2 of described AC/DC power module DFA30-S24N, the equal ground connection of earth terminal FG of the pin 3 of described AC/DC power module DFA30-S24N and AC power (2), the pin 4 of described AC/DC power module DFA30-S24N joins for the output terminal+24V of described ac-dc converter circuit module (14) and with the positive pole of polar capacitor C3 and the positive pole of polar capacitor C4, the pin 6 of described AC/DC power module DFA30-S24N, the equal ground connection of negative pole of the negative pole of polar capacitor C3 and polar capacitor C4.
3. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described DTU power circuit module (15) comprises chip DFB12-24S12, distributed capacitance CD1, nonpolar capacitor C 11 and C12, and polar capacitor C1, C2, C29 and C30, the pin 1 of described chip DFB12-24S12, one end of nonpolar capacitor C 11, the positive pole of the positive pole of polar capacitor C1 and polar capacitor C2 all joins with the output terminal+24V of described ac-dc converter circuit module (14), the other end of the pin 2 of described chip DFB12-24S12 and pin 4 and nonpolar capacitor C 11, the equal ground connection of negative pole of the negative pole of polar capacitor C1 and polar capacitor C2, described distributed capacitance CD1 is connected between the pin 2 and pin 4 of described chip DFB12-24S12, the pin 5 of described chip DFB12-24S12 be described DTU power circuit module (15) output terminal DTU+12V and with one end of nonpolar capacitor C 12, the positive pole of the positive pole of polar capacitor C29 and polar capacitor C30 joins, the other end of described nonpolar capacitor C 12, the equal ground connection of negative pole of the negative pole of polar capacitor C29 and polar capacitor C30.
4. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described power supply of microprocessor circuit module (16) comprises chip AX3007, the first chip AS1117-3.3V, schottky diode D1, inductance L 1, polar capacitor C5, C6, C32, C34, C35 and C36, nonpolar capacitor C 18, C20, C21 and C22, and resistance R F1 and resistance R S1, the pin 1 of described chip AX3007, one end of nonpolar capacitor C 18, the positive pole of the positive pole of polar capacitor C6 and polar capacitor C5 all joins with the output terminal+24V of described ac-dc converter circuit module (14), the pin 4 of described chip AX3007, pin 5, pin 6, pin 7 and pin 8 and nonpolar capacitor C 18 other ends, polar capacitor C6 negative pole and the equal ground connection of polar capacitor C5 negative pole, pin 2 and the negative pole of schottky diode D1 and one end of inductance L 1 of described chip AX3007 join, the positive pole of the other end of described inductance L 1 and polar capacitor C32, the positive pole of polar capacitor C34, one end of one end of nonpolar capacitor C 20 and resistance R F1 joins, the pin 3 of the other end of described resistance R F1 and described chip AX3007 and one end of resistance R S1 join, the positive pole of described schottky diode D1, the negative pole of polar capacitor C32, the negative pole of polar capacitor C34, the equal ground connection of the other end of the other end of nonpolar capacitor C 20 and resistance R S1, pin 3 and one end of nonpolar capacitor C 21 and the positive pole of polar capacitor C35 of described the first chip AS1117-3.3V join, the equal ground connection of negative pole of the pin 1 of described the first chip AS1117-3.3V, the other end of nonpolar capacitor C 21 and polar capacitor C35, the pin 2 of described the first chip AS1117-3.3V joins for the output terminals A VCC+3.3V of described power supply of microprocessor circuit module (16) and with the positive pole of polar capacitor C36 and one end of nonpolar capacitor C 22, the equal ground connection of the other end of the negative pole of described polar capacitor C36 and nonpolar capacitor C 22.
5. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described densitometer signals collecting power circuit module (17) comprises the first chip DFA5-24S24 and polar capacitor C7, and nonpolar capacitor C 17 and C19; The pin 1 of described the first chip DFA5-24S24 and one end of nonpolar capacitor C 17 all join with the output terminal+24V of described ac-dc converter circuit module (14), the equal ground connection of the other end of the pin 2 of described the first chip DFA5-24S24 and pin 4 and nonpolar capacitor C 17, the pin 5 of described the first chip DFA5-24S24 joins for the output terminal VOA+24V of described densitometer signals collecting power circuit module (17) and with one end of nonpolar capacitor C 19 and the positive pole of polar capacitor C7, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 19 and polar capacitor C7.
6. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described flow meter signal gathers power circuit module (18) and comprises the second chip DFA5-24S24 and polar capacitor C8, and nonpolar capacitor C 23 and C25; The pin 1 of described the second chip DFA5-24S24 and one end of nonpolar capacitor C 23 all join with the output terminal+24V of described ac-dc converter circuit module (14), the equal ground connection of the other end of the pin 2 of described the second chip DFA5-24S24 and pin 4 and nonpolar capacitor C 23, the pin 5 of described the second chip DFA5-24S24 is that described flow meter signal gathers the output terminal VOB+24V of power circuit module (18) and joins with one end of nonpolar capacitor C 25 and the positive pole of polar capacitor C8, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 25 and polar capacitor C8.
7. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described transducer signal gathers power circuit module (19) and comprises the 3rd chip DFA5-24S24 and polar capacitor C9, and nonpolar capacitor C 24 and C26; The pin 1 of described the 3rd chip DFA5-24S24 and one end of nonpolar capacitor C 24 all join with the output terminal+24V of described ac-dc converter circuit module (14), the equal ground connection of the other end of the pin 2 of described the 3rd chip DFA5-24S24 and pin 4 and nonpolar capacitor C 24, the pin 5 of described the 3rd chip DFA5-24S24 is that described transducer signal gathers the output terminal VOC+24V of power circuit module (19) and joins with one end of nonpolar capacitor C 26 and the positive pole of polar capacitor C9, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 26 and polar capacitor C9.
8. according to a kind of flowmeter in-line calibration claimed in claim 2 data acquisition and transmitting device power circuit, it is characterized in that: described volume pipe signals collecting power circuit module (20) comprises four-core sheet DFA5-24S24 and polar capacitor C10, and nonpolar capacitor C 27 and C28, the pin 1 of described four-core sheet DFA5-24S24 and one end of nonpolar capacitor C 27 all join with the output terminal+24V of described ac-dc converter circuit module (14), the equal ground connection of the other end of the pin 2 of described four-core sheet DFA5-24S24 and pin 4 and nonpolar capacitor C 27, the pin 5 of described four-core sheet DFA5-24S24 joins for the output terminal VOD+24V of described volume pipe signals collecting power circuit module (20) and with one end of nonpolar capacitor C 28 and the positive pole of polar capacitor C10, the equal ground connection of negative pole of the other end of described nonpolar capacitor C 28 and polar capacitor C10.
9. according to a kind of flowmeter in-line calibration claimed in claim 3 data acquisition and transmitting device power circuit, it is characterized in that: described COM power circuit module (21) comprises chip 7805 and nonpolar capacitor C 31, and polar capacitor C13 and C14; The pin 1 of described chip 7805 and one end of nonpolar capacitor C 13 all join with the output terminal DTU+12V of described DTU power circuit module (15), the equal ground connection of the other end of the pin 2 of described chip 7805 and nonpolar capacitor C 13, the pin 3 of described chip 7805 joins for the output terminal COM+5V of described COM power circuit module (21) and with the positive pole of polar capacitor C31 and one end of nonpolar capacitor C 14, the equal ground connection of the other end of the negative pole of described polar capacitor C31 and nonpolar capacitor C 14.
10. according to a kind of flowmeter in-line calibration claimed in claim 9 data acquisition and transmitting device power circuit, it is characterized in that: described WIFI power circuit module (22) comprises the second chip AS1117-3.3V, nonpolar capacitor C 15 and polar capacitor C33, the pin 3 of described the second chip AS1117-3.3V joins with the output terminal COM+5V of described COM power circuit module (21), the pin 2 of described the second chip AS1117-3.3V joins for the output terminal WIFI+3.3V of described WIFI power circuit module (22) and with one end of nonpolar capacitor C 15 and the positive pole of polar capacitor C33, the pin 1 of described the second chip AS1117-3.3V, the equal ground connection of negative pole of the other end of nonpolar capacitor C 15 and polar capacitor C33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540362.0U CN203414149U (en) | 2013-08-31 | 2013-08-31 | Power supply circuit for flowmeter online detection data collection and transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540362.0U CN203414149U (en) | 2013-08-31 | 2013-08-31 | Power supply circuit for flowmeter online detection data collection and transmission device |
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| CN203414149U true CN203414149U (en) | 2014-01-29 |
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| CN201320540362.0U Expired - Fee Related CN203414149U (en) | 2013-08-31 | 2013-08-31 | Power supply circuit for flowmeter online detection data collection and transmission device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238689A (en) * | 2017-07-24 | 2017-10-10 | 重庆环投生态环境监测网络与工程治理有限公司 | Wireless detecting system is used in sewage treatment process |
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2013
- 2013-08-31 CN CN201320540362.0U patent/CN203414149U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238689A (en) * | 2017-07-24 | 2017-10-10 | 重庆环投生态环境监测网络与工程治理有限公司 | Wireless detecting system is used in sewage treatment process |
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