Online odorization concentration detection device

Abstract

The utility model provides an on-line odorization concentration detection device, which adopts a multi-circuit connection mode, and carries out voltage boosting or voltage reduction on an external power supply through a power supply management circuit so as to meet the use requirements of other circuits. Data detected by the odorization detection circuit is acquired and processed through the main controller, and the valve control circuit is controlled to switch on and off the external valve according to a detection result; besides, the data remote transmission circuit can summarize and store various data information and upload data and state information in real time, integrates and packs the data obtained and processed by the main controller and uploads the data to the cloud, so that the detection efficiency is improved, meanwhile, an operator can remotely monitor related data, and the system is suitable for industrial large-scale use and popularization.

Description

Technical Field

[0001] The utility model belongs to the field of gas detection, and particularly relates to an online odorization concentration detection device. Background Art

[0002] According to the relevant provisions of the Chinese standard "Technical Specifications for Odorization Treatment in the Gas Industry" (GB / T 16809-2008), odorants need to be added to the gas at the source so that gas leaks can be discovered in a short time. However, during the pipeline transportation process, odorants will be attached to the pipe wall. As time changes and the distance from the odorization point increases, the odorant concentration will gradually decay, resulting in a difference between the terminal odorization concentration and the upstream gate station.

[0003] In the prior art, when detecting the concentration of odorizers, operators usually use portable equipment to conduct on-site testing once a month or every two months. This detection method is inefficient, time-consuming and labor-intensive, and it is difficult to reflect the status of natural gas in the pipeline in real time. Utility Model Content

[0004] The utility model aims to provide an online odorization concentration detection device to solve the problem that the prior art is inefficient in detecting the gas odorization concentration and is difficult to reflect the natural gas situation in the pipeline in real time.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An online odorizing concentration detection device comprises a power management circuit, a main control circuit, a remote transmission function circuit, a valve control circuit and an odorizing concentration detection circuit.

[0007] The main control circuit is connected to the power management circuit, the remote transmission function circuit, the valve control circuit and the odorizing concentration detection circuit respectively.

[0008] The power management circuit is also connected to the remote transmission function circuit and the valve control circuit respectively.

[0009] The utility model also has the following features:

[0010] Furthermore, the main control circuit includes a main control chip U1 and a peripheral circuit, wherein: the model of the main control chip U1 is MSP430F2418; and the peripheral circuit includes capacitor C25, capacitor C24, capacitor C28 and capacitor C29.

[0011] Pin 8 of the main control chip U1 and one end of capacitor C24 are grounded together, and the other end of capacitor C24 is connected to pin 11 of the main control chip U1; pin 4 of the main control chip U1 is connected to one end of capacitor C25, and the other end of capacitor C25 is grounded.

[0012] The pin 39 of the main control chip U1 is connected to one end of the capacitor C28, and the other end of the capacitor C28 and the pin 40 of the main control chip U1 are grounded together.

[0013] Pin 57 of the main control chip U1 and one end of the capacitor C29 are grounded together; the other end of the capacitor C29 is connected to pin 56 of the main control chip U1.

[0014] Pin 58 of the main control chip U1 is grounded.

[0015] Furthermore, the power management circuit includes a power chip A3 and a power chip U6, whose models are ME6210A and SY7072 respectively.

[0016] The power management circuit further includes a diode D9, a capacitor E1, an inductor L1, a diode D3, a diode D4, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R10, a resistor R11, a resistor R12 and a resistor R13.

[0017] The anode of the diode D9 is connected to the cathode of the external power supply as the input terminal of the power management circuit, and the cathode of the diode D9 is connected to the VDD terminal of the power chip A3.

[0018] The OUT terminal of the power chip A3 is connected to the positive electrode of the capacitor E1, and the connection point is connected to the 56th pin of the main control chip U1 as the first output terminal of the power management circuit; the GND terminal of the power chip A3 and the negative electrode of the capacitor E1 are grounded together.

[0019] One end of the inductor L1 is connected to pin 6 of the power chip U6, one end of the resistor R13, one end of the capacitor C6 and pin 56 of the main control chip U1; the other end of the inductor L1 is connected to pin 1 of the power chip U6.

[0020] The other end of the resistor R13 is connected to the pin 4 of the power chip U6 and the pin 30 of the main control chip U1.

[0021] The other end of the capacitor C6 is grounded together with the 2nd pin of the power chip U6, one end of the resistor R12, the negative electrode of the capacitor C7 and one end of the capacitor C8.

[0022] Pin 5 of the power chip U6 is commonly connected to one end of the resistor R10, the anode of the capacitor C7, the anode of the diode D3, the anode of the diode D4 and the other end of the capacitor C8.

[0023] The resistor R10 is connected in series with the resistor R11, and the other end of the resistor R11 is connected to the 3rd pin of the power chip U6 and the other end of the resistor R12.

[0024] The cathode of the diode D3 is connected to the input end of the valve control circuit as the second output end of the power management circuit.

[0025] The cathode of the diode D4 is connected to the input end of the remote transmission function circuit as the third output end of the power management circuit.

[0026] Furthermore, the valve control circuit includes resistor R11, resistor R13, resistor R18, resistor R19, resistor R24, resistor R30, resistor R31, resistor R32, resistor R33, diode D24, transistor P1, transistor P2, transistor P3, transistor P4, transistor Q6 and transistor Q7.

[0027] The anode of the diode D24 is connected to the second output terminal of the power management circuit as the input terminal of the valve control circuit.

[0028] The cathode of the diode D24 is connected to one end of the resistor R24; the other end of the resistor R24 ​​is connected to one end of the resistor R13, the emitter of the transistor P1, the emitter of the transistor P2 and one end of the resistor R11.

[0029] One end of the resistor R18 is connected to pin 31 of the main control chip U1, and the other end is connected to the base of the transistor Q6; the emitter of the transistor Q6 is connected to one end of the resistor R31, and the collector is connected to one end of the resistor R30; the other end of the resistor R31 is connected to the base of the transistor P3; the collector of the transistor P3 is connected to the collector of the transistor P2, and this connection point serves as the output end of the valve control circuit and can be connected to the negative pole of the external valve.

[0030] The other end of the resistor R30 is connected to the other end of the resistor R13 and the base of the transistor P1; the collector of the transistor P1 is connected to the collector of the transistor P4; the base of the transistor P4 is connected to one end of the resistor R32, and the emitter of the transistor P4 and the emitter of the transistor P3 can be connected to the positive electrode of the external valve and are grounded together with the positive electrode of the external valve.

[0031] The other end of the resistor R32 is connected to the emitter of the transistor Q7, and the collector of the transistor Q7 is connected to the resistor R33; the other end of the resistor R33 is commonly connected to the other end of the resistor R11 and the base of the transistor P2.

[0032] The base of the transistor Q7 is connected to one end of the resistor R19, and the other end of the resistor R19 is connected to the pin 32 of the main control chip U1.

[0033] Furthermore, the odorizing concentration detection circuit includes an operational amplifier UA1, an operational amplifier UA2, an electrochemical detection probe ME3, an NMOS tube Q1, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a capacitor C3, a capacitor C4 and a capacitor C5.

[0034] The model of the electrochemical detection probe ME3 is ME3-ETO; the models of the operational amplifier UA1 and the operational amplifier UA2 are both AD8572.

[0035] Pin 3 of the electrochemical detection probe ME3 is commonly connected to one end of the capacitor C4 and pin 5 of the operational amplifier UA2; pin 1 of the electrochemical detection probe ME3 is commonly connected to one end of the resistor R3 and the source of the NMOS tube Q1, and pin 2 of the electrochemical detection probe ME3, the drain of the NMOS tube Q1 and one end of the resistor R6 are commonly connected; the gate of the NMOS tube Q1 is connected to pin 56 of the main control chip U1; the other end of the resistor R6 is connected to pin 2 of the operational amplifier UA1.

[0036] One end of the resistor R8 is connected to pin 1 of the operational amplifier UA1; the other end of the resistor R3 is connected to the other end of the capacitor C4 and one end of the resistor R4; the resistor R4 is connected in series with the resistor R5, and the other end of the resistor R5 is connected to pin 2 of the operational amplifier UA2; pin 1 of the operational amplifier UA2 is connected to one end of the resistor R7, and the other end of the resistor R8 is connected to pin 26 of the main control chip U1; the other end of the resistor R7 is connected to pin 27 of the main control chip U1.

[0037] Pin 4 of the operational amplifier UA2 is grounded; pin 3 of the operational amplifier UA2 is connected to pin 56 of the main control chip U1 and one end of the capacitor C3; the other end of the capacitor C3 is grounded.

[0038] Pin 3 of the operational amplifier UA1 is connected to one end of the resistor R9, and the other end of the resistor R9 is connected to one end of the capacitor C5 and pin 24 of the main control chip U1; the other end of the capacitor C5 is grounded.

[0039] Furthermore, the odorizing concentration detection circuit includes a PID sensor probe P1, a capacitor C1, a capacitor C2 and a resistor R1.

[0040] The model of the PID sensor probe P1 is 4R-PID.

[0041] One end of the capacitor C1 is grounded, and the other end of the capacitor C1 is connected to the 56th pin of the main control chip U1 and the 3rd pin of the PID sensor probe P1; the 2nd pin of the PID sensor probe P1 is grounded.

[0042] Pin 1 of the PID sensor probe P1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to pin 23 of the main control chip U1 and one end of the capacitor C2, and the other end of the capacitor C2 is grounded.

[0043] Furthermore, the remote transmission function circuit includes a remote transmission chip U11, a resistor R48, a resistor R49, a transistor Q12, a resistor R50, a phone card J11, a capacitor C37, a resistor R57, a resistor R58, a resistor R59, a capacitor C38, a capacitor C39, a capacitor C40 and an antenna JP2.

[0044] The model of the remote transmission chip U11 is MIC615.

[0045] The model of the telephone card J11 is MOLEX-91128-SIM508C.

[0046] The model of the antenna JP2 is TQX-900.

[0047] One end of the resistor R48 is connected to the pin 28 of the main control chip U1; the other end of the resistor R48 is connected to one end of the resistor R49 and the pin 18 of the remote transmission chip U11; the other end of the resistor R49 is grounded.

[0048] The base of the transistor Q12 is connected to the 13th pin of the remote transmission chip U11, and the emitter of the transistor Q12 is connected to the 19th pin of the remote transmission chip U11; the collector of the transistor Q12 is connected to one end of the resistor R50 and the 29th pin of the main control chip U1; the other end of the resistor R50 is connected to the 72nd pin of the remote transmission chip U11.

[0049] Pin 1 of the telephone card J11 is connected to one end of the capacitor C37; Pin 2 of the telephone card J11 is connected to one end of the resistor R57, and the other end of the resistor R57 is connected to one end of the capacitor C40 and the 25th pin of the teletransmission chip U11; Pin 3 of the telephone card J11 is connected to one end of the resistor R58, and the other end of the resistor R58 is connected to one end of the capacitor C39 and the 24th pin of the teletransmission chip U11; Pin 4 of the telephone card J11 is connected to the other end of the capacitor C37; Pin 5 of the telephone card J11 is left floating; Pin 6 of the telephone card J11 is connected to one end of the resistor R59, and the other end of the resistor R59 is connected to the capacitor C38 and the 23rd pin of the teletransmission chip U11.

[0050] The other ends of the capacitors C38, C39 and C40 are all grounded.

[0051] Pins 9 and 10 of the remote transmission chip U11 are connected to one point, and the connection point is connected to the third output terminal of the power management circuit.

[0052] Pin 1, pin 2, pin 4, pin 5, pin 7 and pin 8 of the remote transmission chip U11 are grounded together.

[0053] Pins 32, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 55, 57 and 60 of the remote transmission chip U11 are commonly grounded.

[0054] Pins 63, 65, 68, 70 and 86 of the remote transmission chip U11 are commonly grounded.

[0055] The pin 96 of the remote transmission chip U11 is connected to the pin 2 of the antenna JP2, and the pin 1 of the antenna JP2 is grounded.

[0056] Compared with the prior art, the utility model has the following technical effects:

[0057] The utility model adopts the form of multi-circuit connection, and the power management circuit is used to boost or reduce the voltage of the external power supply to meet the use requirements of the other circuits. The main controller obtains and processes the data measured by the odor detection circuit, and controls the action of the valve control circuit to switch the external valve according to the detection results; in addition, the data remote transmission circuit can summarize and store various types of data information and upload real-time data and status information, integrate and package the data obtained and processed by the main controller, and upload it to the cloud, which improves the detection efficiency and allows operators to remotely monitor related data, which is suitable for large-scale use and promotion in industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the overall process of the online odorization concentration detection device of the utility model;

[0059] Figure 2 This is a schematic diagram of the main control chip U1 in the utility model;

[0060] Figure 3 It is a schematic diagram of the power management circuit in the utility model;

[0061] Figure 4 It is a schematic diagram of the valve control circuit in the utility model;

[0062] Figure 5 It is a schematic diagram of an odorizing concentration detection circuit in an example of the utility model;

[0063] Figure 6It is a schematic diagram of an odorizing concentration detection circuit in another example of the utility model;

[0064] Figure 7 It is a schematic diagram of the remote transmission function circuit in the utility model. DETAILED DESCRIPTION

[0065] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of the present application fall within the protection scope of the present invention.

[0066] like Figure 1 As shown, an online odorizing concentration detection device includes a power management circuit, a main control circuit, a remote transmission function circuit, a valve control circuit and an odorizing concentration detection circuit.

[0067] The main control circuit is connected with the power management circuit, the remote transmission function circuit, the valve control circuit and the odorizing concentration detection circuit respectively.

[0068] The power management circuit is also connected to the remote transmission function circuit and the valve control circuit respectively.

[0069] The odorizing concentration detection circuit should include a sensor capable of detecting the odorizing concentration of the gas in the pipeline. The valve control circuit is connected to an external valve (usually a deodorant adding valve) that needs to be controlled.

[0070] The main control chip U1 is used to collect the odorizing concentration data measured by the odorizing concentration detection circuit and process the collected data in a conventional manner.

[0071] The conventional method is adopted to drive and control the external valve in the valve control circuit according to the processed odorizing concentration data to change its opening and closing.

[0072] The processed data is transmitted to the remote transmission function circuit.

[0073] The upload cycle is preset to control the remote transmission function circuit to transmit data according to the preset cycle.

[0074] The odorizing concentration detection circuit is used to detect the odorizing concentration data in the pipeline through the sensor in the circuit, and provide the data to the main control chip U1.

[0075] The power management circuit is used to process the voltage of the external power supply so that its operating voltage meets the voltage requirements of the remote transmission function circuit and the valve control circuit.

[0076] The valve control circuit is used to receive the signal from the main control chip U1 and change the opening and closing of the external valve.

[0077] The remote transmission function circuit is used to: receive and store data transmitted by the main control chip U1;

[0078] Data is transmitted according to the preset upload cycle.

[0079] The specific working process of the device is as follows: the operator installs the device at the site to be tested and supplies power to the entire device through an external power supply; the power management circuit is used to convert the voltage to meet the requirements of the main controller and the remote transmission function circuit;

[0080] Next, the main control chip U1 controls the external valve connected to the valve control circuit to open, and the gas to be tested flows to the odorizing concentration detection circuit. The main control chip U1 and the odorizing concentration detection circuit exchange data according to conventional methods, obtain all monitoring data during the detection and process them. The data is stored and uploaded to the cloud through the remote transmission function circuit, and then the valve circuit is closed and the detection is ended through the main control chip U1.

[0081] As a specific implementation, the main control circuit includes a main control chip U1 and a peripheral circuit, wherein: the model of the main control chip U1 is MSP430F2418; the peripheral circuit includes a capacitor C25, a capacitor C24, a capacitor C28 and a capacitor C29.

[0082] Pin 8 of the main control chip U1 and one end of capacitor C24 are grounded together, and the other end of capacitor C24 is connected to pin 11 of the main control chip U1; pin 4 of the main control chip U1 is connected to one end of capacitor C25, and the other end of capacitor C25 is grounded.

[0083] Pin 39 of the main control chip U1 is connected to one end of the capacitor C28, and the other end of the capacitor C28 and pin 40 of the main control chip U1 are grounded together.

[0084] Pin 57 of the main control chip U1 and one end of the capacitor C29 are grounded together; the other end of the capacitor C29 is connected to pin 56 of the main control chip U1.

[0085] Pin 58 of the main control chip U1 is grounded.

[0086] Among them, the capacitance values ​​of capacitor C24, capacitor C25, capacitor C28 and capacitor C29 are 0.1UF, 4.7UF, 0.1UF and 0.1UF respectively.

[0087] As a specific implementation, the power management circuit includes a power chip A3 and a power chip U6, whose models are ME6210A and SY7072 respectively.

[0088] The power management circuit further includes a diode D9, a capacitor E1, an inductor L1, a diode D3, a diode D4, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R10, a resistor R11, a resistor R12 and a resistor R13.

[0089] The anode of the diode D9 is connected to the cathode of the external power supply as the input terminal of the power management circuit, and the cathode of the diode D9 is connected to the VDD terminal of the power chip A3.

[0090] The OUT terminal of the power chip A3 is connected to the positive electrode of the capacitor E1, and the connection point is connected to the 56th pin of the main control chip U1 as the first output terminal of the power management circuit; the GND terminal of the power chip A3 and the negative electrode of the capacitor E1 are grounded together.

[0091] One end of the inductor L1 is connected to pin 6 of the power chip U6, one end of the resistor R13, one end of the capacitor C6 and pin 56 of the main control chip U1; the other end of the inductor L1 is connected to pin 1 of the power chip U6.

[0092] The other end of the resistor R13 is connected to the pin 4 of the power chip U6 and the pin 30 of the main control chip U1.

[0093] The other end of the capacitor C6 is grounded together with the pin 2 of the power chip U6, one end of the resistor R12, the negative electrode of the capacitor C7 and one end of the capacitor C8.

[0094] Pin 5 of the power chip U6 is commonly connected to one end of the resistor R10, the anode of the capacitor C7, the anode of the diode D3, the anode of the diode D4 and the other end of the capacitor C8.

[0095] The resistor R10 is connected in series with the resistor R11, and the other end of the resistor R11 is connected to the pin 3 of the power chip U6 and the other end of the resistor R12.

[0096] The cathode of the diode D3 is connected to the input end of the valve control circuit as the second output end of the power management circuit. The cathode of the diode D4 is connected to the input end of the remote transmission function circuit as the third output end of the power management circuit.

[0097] In actual use, since the voltage required by the main control chip U1 is different from the voltage required by the valve control circuit and the remote transmission function circuit, the external power supply 6V is reduced to the voltage required by the main controller, and another circuit in the power management circuit boosts the main controller power supply to the voltage required by the valve control circuit and the remote transmission function circuit.

[0098] Specifically, the values ​​of inductor L1, capacitor E1, capacitor C6, capacitor C7, capacitor C8, resistor R10, resistor R11, resistor R12 and resistor R13 are 4.7UH, 100UF, 0.1UF, 100UF / 10v, 0.1UF, 510K, 3M, 1M, 2M respectively. The model of diode D9 is M7; the capacitance value of capacitor E1 is 100UF.

[0099] As a specific implementation, the valve control circuit includes resistor R11, resistor R13, resistor R18, resistor R19, resistor R24, resistor R30, resistor R31, resistor R32, resistor R33, diode D24, transistor P1, transistor P2, transistor P3, transistor P4, transistor Q6 and transistor Q7.

[0100] The anode of the diode D24 is connected to the second output terminal of the power management circuit as the input terminal of the valve control circuit.

[0101] The cathode of the diode D24 is connected to one end of the resistor R24; the other end of the resistor R24 ​​is commonly connected to one end of the resistor R13, the emitter of the transistor P1, the emitter of the transistor P2 and one end of the resistor R11.

[0102] One end of resistor R18 is connected to pin 31 of the main control chip U1, and the other end is connected to the base of transistor Q6; the emitter of transistor Q6 is connected to one end of resistor R31, and the collector is connected to one end of resistor R30; the other end of resistor R31 is connected to the base of transistor P3; the collector of transistor P3 is connected to the collector of transistor P2, and this connection point serves as the output end of the valve control circuit and can be connected to the negative pole of the external valve.

[0103] The other end of resistor R30 is connected to the other end of resistor R13 and the base of transistor P1; the collector of transistor P1 is connected to the collector of transistor P4; the base of transistor P4 is connected to one end of resistor R32, and the emitter of transistor P4 and the emitter of transistor P3 can be connected to the positive electrode of the external valve and are grounded together with the positive electrode of the external valve.

[0104] The other end of the resistor R32 is connected to the emitter of the transistor Q7, and the collector of the transistor Q7 is connected to the resistor R33; the other end of the resistor R33 is commonly connected to the other end of the resistor R11 and the base of the transistor P2.

[0105] The base of the transistor Q7 is connected to one end of the resistor R19, and the other end of the resistor R19 is connected to the pin 32 of the main control chip U1.

[0106] It should be noted that those skilled in the art are capable of selecting a suitable external valve based on conventional knowledge in the field, and connecting the external valve to the valve control circuit of the present invention using the above method.

[0107] Specifically, the models of transistor Q6, transistor P1, transistor P2, transistor P3, transistor P4 and transistor Q7 are 8050, 2SA966, 2SA9662, SC2236, SC2236 and 8050 respectively.

[0108] The resistance values ​​of resistor R18, resistor R24, resistor R30, resistor R31, resistor R32, resistor R33, resistor R11, resistor R19 and resistor R13 are 5.1KΩ, 10Ω, 510Ω, 510Ω, 510Ω, 100KΩ, 5.1KΩ and 100KΩ respectively.

[0109] As a specific implementation, the odorizing concentration detection circuit adopts an electrochemical method.

[0110] When the electrochemical method is adopted, the odor concentration detection circuit includes an operational amplifier UA1, an operational amplifier UA2, an electrochemical detection probe ME3, an NMOS tube Q1, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a capacitor C3, a capacitor C4 and a capacitor C5;

[0111] The model of the electrochemical detection probe ME3 is ME3-ETO; the models of the operational amplifier UA1 and the operational amplifier UA2 are both AD8572.

[0112] Pin 3 of the electrochemical detection probe ME3 is connected to one end of the capacitor C4 and pin 5 of the operational amplifier UA2; pin 1 of the electrochemical detection probe ME3 is connected to one end of the resistor R3 and the source of the NMOS tube Q1, and pin 2 of the electrochemical detection probe ME3, the drain of the NMOS tube Q1 and one end of the resistor R6 are connected; the gate of the NMOS tube Q1 is connected to pin 56 of the main control chip U1; the other end of the resistor R6 is connected to pin 2 of the operational amplifier UA1.

[0113] One end of resistor R8 is connected to pin 1 of operational amplifier UA1; the other end of resistor R3 is connected to the other end of capacitor C4 and one end of resistor R4; resistor R4 is connected in series with resistor R5, and the other end of resistor R5 is connected to pin 2 of operational amplifier UA2; pin 1 of operational amplifier UA2 is connected to one end of resistor R7, and the other end of resistor R8 is connected to pin 26 of main control chip U1; the other end of resistor R7 is connected to pin 27 of main control chip U1.

[0114] Pin 4 of the operational amplifier UA2 is grounded; pin 3 of the operational amplifier UA2 is connected to pin 56 of the main control chip U1 and one end of the capacitor C3; the other end of the capacitor C3 is grounded.

[0115] Pin 3 of the operational amplifier UA1 is connected to one end of the resistor R9, and the other end of the resistor R9 is connected to one end of the capacitor C5 and pin 24 of the main control chip U1; the other end of the capacitor C5 is grounded.

[0116] Specifically, the models of the electrochemical odorization concentration detection sensor ME3, the PID odorization concentration detection sensor P1, the operational amplifier UA1, the operational amplifier UA2 and the NMOS tube are ME3-ETO, 4R-PID, AD8572, AD8572 and 3404 respectively.

[0117] The values ​​of resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, capacitor C3, capacitor C4 and capacitor C5 are 10K, 10K, 10K, 10R, 10K, 10R, 10R, 0.1UF, 0.1UF and 0.1UF respectively.

[0118] As another optional implementation, the odorizing concentration detection circuit may also adopt a PID method.

[0119] When the PID method is adopted, the odorizing concentration detection circuit includes a PID sensor probe P1, a capacitor C1, a capacitor C2 and a resistor R1.

[0120] The model of PID sensor probe P1 is 4R-PID.

[0121] One end of the capacitor C1 is grounded, and the other end of the capacitor C1 is connected to the 56th pin of the main control chip U1 and the 3rd pin of the PID sensor probe P1; the 2nd pin of the PID sensor probe P1 is grounded.

[0122] Pin 1 of the PID sensor probe P1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to pin 23 of the main control chip U1 and one end of the capacitor C2, and the other end of the capacitor C2 is grounded.

[0123] Specifically, the values ​​of capacitor C1, capacitor C2, and resistor R1 are 10UF / 16V, 0.1UF, and 1K, respectively.

[0124] As a specific implementation, the remote transmission function circuit includes a remote transmission chip U11, a resistor R48, a resistor R49, a transistor Q12, a resistor R50, a phone card J11, a capacitor C37, a resistor R57, a resistor R58, a resistor R59, a capacitor C38, a capacitor C39, a capacitor C40 and an antenna JP2.

[0125] The model of the FarEasTone chip U11 is MIC615.

[0126] The model of phone card J11 is MOLEX-91128-SIM508C.

[0127] The model of antenna JP2 is TQX-900.

[0128] One end of the resistor R48 is connected to the pin 28 of the main control chip U1; the other end of the resistor R48 is connected to one end of the resistor R49 and the pin 18 of the remote transmission chip U11; the other end of the resistor R49 is grounded.

[0129] The base of transistor Q12 is connected to pin 13 of remote transmission chip U11, and the emitter of transistor Q12 is connected to pin 19 of remote transmission chip U11; the collector of transistor Q12 is connected to one end of resistor R50 and pin 29 of main control chip U1; the other end of resistor R50 is connected to pin 72 of remote transmission chip U11.

[0130] Pin 1 of the phone card J11 is connected to one end of the capacitor C37; Pin 2 of the phone card J11 is connected to one end of the resistor R57, and the other end of the resistor R57 is connected to one end of the capacitor C40 and pin 25 of the teletransmission chip U11; Pin 3 of the phone card J11 is connected to one end of the resistor R58, and the other end of the resistor R58 and one end of the capacitor C39 and pin 24 of the teletransmission chip U11 are connected together; Pin 4 of the phone card J11 is connected to the other end of the capacitor C37; Pin 5 of the phone card J11 is left floating; Pin 6 of the phone card J11 is connected to one end of the resistor R59, and the other end of the resistor R59 is connected to capacitor C38 and pin 23 of the teletransmission chip U11.

[0131] The other ends of the capacitors C38 , C39 and C40 are all grounded.

[0132] Pins 9 and 10 of the remote transmission chip U11 are connected to one point, and the connection point is connected to the third output terminal of the power management circuit.

[0133] Pins 1, 2, 4, 5, 7 and 8 of the remote transmission chip U11 are grounded in common.

[0134] Pins 32, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 55, 57 and 60 of the remote transmission chip U11 are commonly grounded.

[0135] Pins 63, 65, 68, 70 and 86 of the remote transmission chip U11 are commonly grounded.

[0136] Pin 96 of the remote transmission chip U11 is connected to pin 2 of the antenna JP2, and pin 1 of the antenna JP2 is grounded.

[0137] Specifically, the models of transistor Q12, teleconductor chip U11, phone card J11 and antenna JP2 are C86932, MIC615, MOLEX-91128-SIM508C and TQX-900 respectively.

[0138] The values ​​of capacitor C37, capacitor C38, capacitor C39, capacitor C40, resistor R48, resistor R49, resistor R50, resistor R57, resistor R58 and resistor R59 are 100nF, 33pF, 33pF, 33pF, 1K, 1K, 10K, 22Ω, 22Ω and 22Ω respectively.

Claims

1. An online odorization concentration detection device, characterized in that: It includes power management circuit, main control circuit, remote transmission function circuit, valve control circuit and odorization concentration detection circuit; The main control circuit is connected to the power management circuit, the remote transmission function circuit, the valve control circuit and the odorization concentration detection circuit respectively; The power management circuit is also connected to the remote transmission function circuit and the valve control circuit respectively.

2. The online odorization concentration detection device according to claim 1, characterized in that: The main control circuit includes a main control chip U1 and a peripheral circuit, wherein: the model of the main control chip U1 is MSP430F2418; the peripheral circuit includes a capacitor C25, a capacitor C24, a capacitor C28 and a capacitor C29; Pin 8 of the main control chip U1 and one end of the capacitor C24 are grounded together, and the other end of the capacitor C24 is connected to pin 11 of the main control chip U1; Pin 4 of the main control chip U1 is connected to one end of the capacitor C25, and the other end of the capacitor C25 is grounded; The pin 39 of the main control chip U1 is connected to one end of the capacitor C28, and the other end of the capacitor C28 and the pin 40 of the main control chip U1 are grounded together; Pin 57 of the main control chip U1 and one end of the capacitor C29 are grounded together; the other end of the capacitor C29 is connected to pin 56 of the main control chip U1; Pin 58 of the main control chip U1 is grounded.

3. The online odorization concentration detection device according to claim 2, characterized in that: The power management circuit includes a power chip A3 and a power chip U6, whose models are ME6210A and SY7072 respectively; The power management circuit further includes a diode D9, a capacitor E1, an inductor L1, a diode D3, a diode D4, a capacitor C6, a capacitor C7, a capacitor C8, a resistor R10, a resistor R11, a resistor R12 and a resistor R13; The anode of the diode D9 is connected to the cathode of the external power supply as the input terminal of the power management circuit, and the cathode of the diode D9 is connected to the VDD terminal of the power chip A3; The OUT terminal of the power chip A3 is connected to the positive electrode of the capacitor E1, and the connection point is connected to the 56th pin of the main control chip U1 as the first output terminal of the power management circuit; the GND terminal of the power chip A3 and the negative electrode of the capacitor E1 are grounded together; One end of the inductor L1 is connected to pin 6 of the power chip U6, one end of the resistor R13, one end of the capacitor C6 and pin 56 of the main control chip U1; the other end of the inductor L1 is connected to pin 1 of the power chip U6; The other end of the resistor R13 is connected to the pin 4 of the power chip U6 and the pin 30 of the main control chip U1; The other end of the capacitor C6 is grounded together with the 2nd pin of the power chip U6, one end of the resistor R12, the negative electrode of the capacitor C7 and one end of the capacitor C8; Pin 5 of the power chip U6 is connected to one end of the resistor R10, the positive electrode of the capacitor C7, the positive electrode of the diode D3, the positive electrode of the diode D4 and the other end of the capacitor C8; The resistor R10 is connected in series with the resistor R11, and the other end of the resistor R11 is connected to the 3rd pin of the power chip U6 and the other end of the resistor R12; The cathode of the diode D3 is connected to the input end of the valve control circuit as the second output end of the power management circuit; The cathode of the diode D4 is connected to the input end of the remote transmission function circuit as the third output end of the power management circuit.

4. The on-line odorization concentration detection device according to claim 3, characterized in that: The valve control circuit includes a resistor R11, a resistor R13, a resistor R18, a resistor R19, a resistor R24, a resistor R30, a resistor R31, a resistor R32, a resistor R33, a diode D24, a transistor P1, a transistor P2, a transistor P3, a transistor P4, a transistor Q6 and a transistor Q7; The anode of the diode D24 is connected to the second output terminal of the power management circuit as the input terminal of the valve control circuit; The cathode of the diode D24 is connected to one end of the resistor R24; the other end of the resistor R24 ​​is connected to one end of the resistor R13, the emitter of the transistor P1, the emitter of the transistor P2 and one end of the resistor R11; One end of the resistor R18 is connected to the 31 pin of the main control chip U1, and the other end is connected to the base of the transistor Q6; the emitter of the transistor Q6 is connected to one end of the resistor R31, and the collector is connected to one end of the resistor R30; the other end of the resistor R31 is connected to the base of the transistor P3; the collector of the transistor P3 is connected to the collector of the transistor P2, and this connection point serves as the output end of the valve control circuit and can be connected to the negative electrode of the external valve; The other end of the resistor R30 is connected to the other end of the resistor R13 and the base of the transistor P1; the collector of the transistor P1 is connected to the collector of the transistor P4; the base of the transistor P4 is connected to one end of the resistor R32, and the emitter of the transistor P4 and the emitter of the transistor P3 can be connected to the positive electrode of the external valve and are grounded together with the positive electrode of the external valve; The other end of the resistor R32 is connected to the emitter of the transistor Q7, and the collector of the transistor Q7 is connected to the resistor R33; the other end of the resistor R33 is connected to the other end of the resistor R11 and the base of the transistor P2; The base of the transistor Q7 is connected to one end of the resistor R19, and the other end of the resistor R19 is connected to the pin 32 of the main control chip U1.

5. The on-line odorization concentration detection device according to claim 4, characterized in that: The odorizing concentration detection circuit includes an operational amplifier UA1, an operational amplifier UA2, an electrochemical detection probe ME3, an NMOS tube Q1, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a capacitor C3, a capacitor C4 and a capacitor C5; The model of the electrochemical detection probe ME3 is ME3-ETO; the models of the operational amplifier UA1 and the operational amplifier UA2 are both AD8572; Pin 3 of the electrochemical detection probe ME3 is commonly connected to one end of the capacitor C4 and pin 5 of the operational amplifier UA2; pin 1 of the electrochemical detection probe ME3 is commonly connected to one end of the resistor R3 and the source of the NMOS tube Q1, and pin 2 of the electrochemical detection probe ME3, the drain of the NMOS tube Q1 and one end of the resistor R6 are commonly connected; the gate of the NMOS tube Q1 is connected to pin 56 of the main control chip U1; the other end of the resistor R6 is connected to pin 2 of the operational amplifier UA1; One end of the resistor R8 is connected to pin 1 of the operational amplifier UA1; the other end of the resistor R3 is commonly connected to the other end of the capacitor C4 and one end of the resistor R4; the resistor R4 is connected in series with the resistor R5, and the other end of the resistor R5 is connected to pin 2 of the operational amplifier UA2; pin 1 of the operational amplifier UA2 is connected to one end of the resistor R7, and the other end of the resistor R8 is connected to pin 26 of the main control chip U1; the other end of the resistor R7 is connected to pin 27 of the main control chip U1; Pin 4 of the operational amplifier UA2 is grounded; Pin 3 of the operational amplifier UA2 is connected to Pin 56 of the main control chip U1 and one end of the capacitor C3; the other end of the capacitor C3 is grounded; Pin 3 of the operational amplifier UA1 is connected to one end of the resistor R9, and the other end of the resistor R9 is connected to one end of the capacitor C5 and pin 24 of the main control chip U1; the other end of the capacitor C5 is grounded.

6. The on-line odorization concentration detection device according to claim 4, characterized in that: The odorizing concentration detection circuit comprises a PID sensor probe P1, a capacitor C1, a capacitor C2 and a resistor R1; The model of the PID sensor probe P1 is 4R-PID; One end of the capacitor C1 is grounded, and the other end of the capacitor C1 is connected to the 56th pin of the main control chip U1 and the 3rd pin of the PID sensor probe P1; the 2nd pin of the PID sensor probe P1 is grounded; Pin 1 of the PID sensor probe P1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to pin 23 of the main control chip U1 and one end of the capacitor C2, and the other end of the capacitor C2 is grounded.

7. The on-line odorization concentration detection device according to claim 4, characterized in that: The remote transmission function circuit includes a remote transmission chip U11, a resistor R48, a resistor R49, a transistor Q12, a resistor R50, a phone card J11, a capacitor C37, a resistor R57, a resistor R58, a resistor R59, a capacitor C38, a capacitor C39, a capacitor C40 and an antenna JP2; The model of the remote transmission chip U11 is MIC615; The model of the telephone card J11 is MOLEX-91128-SIM508C; The model of the antenna JP2 is TQX-900; One end of the resistor R48 is connected to the 28th pin of the main control chip U1; the other end of the resistor R48 is connected to one end of the resistor R49 and the 18th pin of the remote transmission chip U11; the other end of the resistor R49 is grounded; The base of the transistor Q12 is connected to the 13th pin of the remote transmission chip U11, and the emitter of the transistor Q12 is connected to the 19th pin of the remote transmission chip U11; the collector of the transistor Q12 is connected to one end of the resistor R50 and the 29th pin of the main control chip U1; the other end of the resistor R50 is connected to the 72nd pin of the remote transmission chip U11; Pin 1 of the telephone card J11 is connected to one end of the capacitor C37; Pin 2 of the telephone card J11 is connected to one end of the resistor R57, and the other end of the resistor R57 is connected to one end of the capacitor C40 and the 25th pin of the teletransmission chip U11; Pin 3 of the telephone card J11 is connected to one end of the resistor R58, and the other end of the resistor R58 is connected to one end of the capacitor C39 and the 24th pin of the teletransmission chip U11; Pin 4 of the telephone card J11 is connected to the other end of the capacitor C37; Pin 5 of the telephone card J11 is left floating; Pin 6 of the telephone card J11 is connected to one end of the resistor R59, and the other end of the resistor R59 is connected to the capacitor C38 and the 23rd pin of the teletransmission chip U11; The other ends of the capacitors C38, C39 and C40 are all grounded; Pins 9 and 10 of the remote transmission chip U11 are connected to one point, and the connection point is connected to the third output terminal of the power management circuit; Pin 1, pin 2, pin 4, pin 5, pin 7 and pin 8 of the remote transmission chip U11 are grounded together; Pins 32, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 55, 57 and 60 of the remote transmission chip U11 are grounded in common; Pins 63, 65, 68, 70 and 86 of the remote transmission chip U11 are grounded together; The pin 96 of the remote transmission chip U11 is connected to the pin 2 of the antenna JP2, and the pin 1 of the antenna JP2 is grounded.

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