Oil consumption controller detection circuit
By designing a fuel consumption controller detection circuit and using specific chips and circuit components to process signals, the problems of low efficiency and human factor influence in existing detection methods have been solved, thereby improving the accuracy and efficiency of detection results.
Patent Information
- Application Number
- CN202520674784.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-10
AI Technical Summary
Existing fuel consumption controller testing methods are inefficient and easily affected by human factors, leading to inaccurate test results.
A fuel consumption controller detection circuit was designed, including a first processing module, a second processing module, a third processing module, and a power supply module. It utilizes specific chips and circuit components for signal processing and transmission to ensure the accuracy and efficiency of the detection results.
It significantly improves detection efficiency, reduces the impact of human error, and ensures the accuracy of test results.
Smart Images
Figure CN223883941U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oil consumption controller detection technical field, concretely relates to an oil consumption controller detection circuit. BACKGROUND
[0002] In the field of aviation, especially for large transport aircraft like Y-8 / C, automatic fuel consumption controller is the key component to ensure the efficient and safe operation of the fuel system.
[0003] The existing fuel consumption controller detection method is mostly that the technical personnel checks the working state of the fuel consumption controller through manual operation. It is not only inefficient, but also easily affected by human factors, resulting in inaccurate detection results. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing an oil consumption controller detection circuit, solving the problem of the existing fuel consumption controller detection method, low efficiency, and easily affected by human factors, resulting in inaccurate detection results.
[0005] To solve the above technical problems, the utility model adopts the following technical scheme:
[0006] An oil consumption controller detection circuit, comprising a first processing module, a second processing module, a third processing module and a power module, the input end of the first processing module is used for being connected with the oil consumption controller;The input end of the second processing module is connected with the first output end of the first processing module;The input end of the third processing module is connected with the output end of the second processing module, and the output end of the third processing module is used for being connected with the oil consumption controller;The power module is connected with the first processing module, the second processing module and the third processing module.
[0007] A further technical solution is: the power module includes a first power unit; the first power unit includes a first power chip U4, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, an inductor L1 and a diode D1; the first power chip U4 is TPS54331 DR; the 2nd pin of the first power chip U4, one end of the capacitor C13, one end of the capacitor C16, one end of the capacitor C18, one end of the resistor R22 are all used for connecting VCC; the 3rd pin of the first power chip U4 and the other end of the resistor R22 and one end of the resistor R24 are all connected; the 4th pin of the first power chip U4 is connected with one end of the capacitor C14; the other end of the capacitor C13, the other end of the capacitor C16, the other end of the capacitor C18, the other end of the resistor R24 and the other end of the capacitor C14 are all connected with GND; the 1st pin of the first power chip U4 is connected with one end of the capacitor C10; the 8th pin of the first power chip U4 is connected with the other end of the capacitor C10, the negative electrode of the diode D1 and one end of the inductor L1; the 7th pin of the first power chip U4, the positive electrode of the diode D1, one end of the capacitor C12, one end of the capacitor C11, one end of the capacitor C15, one end of the resistor R25 and one end of the resistor R23 are all connected with GND; the 6th pin of the first power chip U4 is connected with the other end of the capacitor C15 and one end of the capacitor C17; the other end of the capacitor C17 is connected with the other end of the resistor R25; the 5th pin of the first power chip U4 is connected with one end of the resistor R21 and the other end of the resistor R23; the other end of the inductor L1 is connected with the other end of the capacitor C12, the other end of the capacitor C11 and the other end of the resistor R21, and the first processing module, the second processing module and the third processing module are all connected.
[0008] Further technical solutions are as follows: the power module further comprises a second power unit; the second power unit comprises a second power chip U5, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25, a capacitor C26, a capacitor C27, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, an inductor L2 and a diode D2; the first power chip U5 is TPS54331 DR; a No. 2 pin of the first power chip U5, one end of the capacitor C22, one end of the capacitor C25, one end of the capacitor C27 and one end of the resistor R27 are all used for connecting VCC; a No. 3 pin of the first power chip U5 is connected with the other end of the resistor R27 and one end of the resistor R29; a No. 4 pin of the first power chip U5 is connected with one end of the capacitor C23; the other end of the capacitor C22, the other end of the capacitor C25, the other end of the capacitor C27, the other end of the resistor R29 and the other end of the capacitor C23 are all connected with GND; a No. 1 pin of the first power chip U5 is connected with one end of the capacitor C19; a No. 8 pin of the first power chip U5 is connected with the other end of the capacitor C19, a negative electrode of the diode D2 and one end of the inductor L2; a No. 7 pin of the first power chip U5, a positive electrode of the diode D5, one end of the capacitor C21, one end of the capacitor C20, one end of the capacitor C24, one end of the resistor R30 and one end of the resistor R28 are all connected with GND; a No. 6 pin of the first power chip U5 is connected with the other end of the capacitor C24 and one end of the capacitor C26; the other end of the capacitor C26 is connected with the other end of the resistor R30; a No. 5 pin of the first power chip U5 is connected with one end of the resistor R26 and the other end of the resistor R28; the other end of the inductor L2 is connected with the other end of the capacitor C21, the other end of the capacitor C20 and the other end of the resistor R26, and is connected with the second processing module.
[0009] Further technical solutions are as follows: the first processing module comprises a first expansion unit and a first processing unit; the first expansion unit comprises a first expansion chip U8, a capacitor C31, a resistor R60 and a resistor R53; the first expansion chip U8 is PCA9555PW,118; a No. 1 pin of the first expansion chip U8 is connected with one end of the resistor R53; a No. 21 pin of the first expansion chip U8 is connected with one end of the resistor R60; a No. 24 pin of the first expansion chip U8, the other end of the resistor R53, one end of the capacitor C31 and the other end of the resistor R60 are all connected with the other end of the inductor L1; the other end of the capacitor C31 is connected with GND; a No. 22 pin and a No. 23 pin of the first expansion chip U8 are both connected with an input end of the second processing module; a first input end of the first processing unit is used for being connected with the oil consumption controller; a second input end of the first processing unit is connected with the other end of the inductor L1; an output end of the first processing unit is connected with the first expansion chip U8.
[0010] Further, the first processing unit comprises a first operational amplifier and a first sub-input unit; the first operational amplifier is LM324DT, and the first operational amplifier comprises a first sub-operational amplification unit U9A; the first sub-input unit comprises a stabilizing diode Z1, a resistor R54, a resistor R62, a resistor R43, a resistor R40 and a resistor R41; one end of the resistor R54 is used for connecting with the oil consumption controller; the other end of the resistor R54, the negative electrode of the stabilizing diode Z1 and one end of the resistor R62 are all connected with the No.2 pin of the first sub-operational amplification unit U9A; the positive electrode of the stabilizing diode Z1 is connected with the other end of the resistor R62; one end of the resistor R40 and the No.4 pin of the first sub-operational amplification unit U9A are all connected with the other end of the inductor L1; the other end of the resistor R40 and one end of the resistor R43 are all connected with the No.3 pin of the first sub-operational amplification unit U9A; the other end of the resistor R43 and the No.11 pin of the first sub-operational amplification unit U9A are all connected with GND; the No.1 pin of the first sub-operational amplification unit U9A is connected with one end of the resistor R41; the other end of the resistor R41 is connected with the No.4 pin of the first expansion chip U8.
[0011] Further, the first processing unit further comprises a second sub-input unit; the first operational amplifier comprises a second sub-operational amplification unit U9B; the second sub-input unit comprises a stabilizing diode Z2, a resistor R58, a resistor R66, a resistor R50, a resistor R44 and a resistor R47; one end of the resistor R58 is used for connecting with the oil consumption controller; the other end of the resistor R58, the negative electrode of the stabilizing diode Z2 and one end of the resistor R66 are all connected with the No.5 pin of the second sub-operational amplification unit U9B; the positive electrode of the stabilizing diode Z2 is connected with the other end of the resistor R66; one end of the resistor R44 and the No.4 pin of the second sub-operational amplification unit U9B are all connected with the other end of the inductor L1; the other end of the resistor R44 and one end of the resistor R50 are all connected with the No.6 pin of the second sub-operational amplification unit U9B; the other end of the resistor R50 and the No.11 pin of the second sub-operational amplification unit U9B are all connected with GND; the No.7 pin of the second sub-operational amplification unit U9B is connected with one end of the resistor R47; the other end of the resistor R47 is connected with the No.5 pin of the first expansion chip U8.
[0012] Further technical solutions are: the second processing module includes a processing chip U2, a resistor R17 and a resistor R19, the processing chip U2 is MT7688-Smt, the No.
[0013] Further technical solutions are: the second processing module further includes a receiving chip U3, a capacitor C5, a capacitor C7, a resistor R10 and a resistor R11, the receiving chip U3 is MAX232ESE, the No.
[0014] Further technical solutions are: the third processing module includes a second expansion unit and a second processing unit, the second expansion unit includes a second expansion chip U1, a capacitor C2 and a resistor R1, the second expansion chip U1 is PCA9555PW,118, the No.
[0015] Further technical solutions are: the second processing unit includes a first sub-output unit, the first sub-output unit includes a MOS transistor Q1 and a resistor R2, the gate of the MOS transistor Q1 and one end of the resistor R2 are connected with the No.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] In order to improve the detection efficiency and reduce the influence of human error, and to ensure the accuracy of the detection results. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 An electrical block diagram of a kind to be spent oil controller detection circuit in this embodiment;
[0019] Figure 2 The circuit structure topological map of the second processing module in a kind to be spent oil controller detection circuit in this embodiment;
[0020] Figure 3 The circuit structure topological map of the first power supply unit in a kind to be spent oil controller detection circuit in this embodiment;
[0021] Figure 4 The circuit structure topological map of the second power supply unit in a kind to be spent oil controller detection circuit in this embodiment;
[0022] Figure 5 The circuit structure topological map of the first extension unit in a kind to be spent oil controller detection circuit in this embodiment;
[0023] Figure 6 The circuit structure topological map of the first sub input unit in a kind to be spent oil controller detection circuit in this embodiment;
[0024] Figure 7 The circuit structure topological map of the second sub input unit in a kind to be spent oil controller detection circuit in this embodiment;
[0025] Figure 8 The circuit structure topological map of the second extension unit in a kind to be spent oil controller detection circuit in this embodiment;
[0026] Figure 9 The circuit structure topological map of the first sub output unit in a kind to be spent oil controller detection circuit in this embodiment. DETAILED DESCRIPTION
[0027] The utility model will be further described below in conjunction with the drawings.
[0028] EMBODIMENT
[0029] The embodiment provides a kind to be spent oil controller detection circuit, such as Figure 1As shown, the first processing module, the second processing module, the third processing module and the power module, the input end of the first processing module is used for connecting with the oil consumption controller; the input end of the second processing module is connected with the first output end of the first processing module; the input end of the third processing module is connected with the output end of the second processing module, and the output end of the third processing module is used for connecting with the oil consumption controller; the power module is connected with the first processing module, the second processing module and the third processing module.
[0030] In the embodiment, the power module comprises a first power unit; as Figure 2 As shown, the first power unit comprises a first power chip U4, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, an inductor L1 and a diode D1; the first power chip U4 is TPS54331 DR; the No. 2 pin of the first power chip U4, one end of the capacitor C13, one end of the capacitor C16, one end of the capacitor C18 and one end of the resistor R22 are all used for connecting VCC; the No. 3 pin of the first power chip U4 is connected with the other end of the resistor R22 and one end of the resistor R24; the No. 4 pin of the first power chip U4 is connected with one end of the capacitor C14; the other end of the capacitor C13, the other end of the capacitor C16, the other end of the capacitor C18, the other end of the resistor R24 and the other end of the capacitor C14 are all connected with GND; the No. 1 pin of the first power chip U4 is connected with one end of the capacitor C10; the No. 8 pin of the first power chip U4 is connected with the other end of the capacitor C10, the negative electrode of the diode D1 and one end of the inductor L1; the No. 7 pin of the first power chip U4, the positive electrode of the diode D1, one end of the capacitor C12, one end of the capacitor C11, one end of the capacitor C15, one end of the resistor R25 and one end of the resistor R23 are all connected with GND; the No. 6 pin of the first power chip U4 is connected with the other end of the capacitor C15 and one end of the capacitor C17; the other end of the capacitor C17 is connected with the other end of the resistor R25; the No. 5 pin of the first power chip U4 is connected with one end of the resistor R21 and the other end of the resistor R23; the other end of the inductor L1 is connected with the other end of the capacitor C12, the other end of the capacitor C11 and the other end of the resistor R21, and the first processing module, the second processing module and the third processing module are all connected.
[0031] In the embodiment, the power module further comprises a second power unit; as Figure 3As shown, the second power supply unit includes a second power supply chip U5, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25, a capacitor C26, a capacitor C27, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, an inductor L2 and a diode D2; the first power supply chip U5 is TPS54331 DR; the pin 2 of the first power supply chip U5, one end of the capacitor C22, one end of the capacitor C25, one end of the capacitor C27 and one end of the resistor R27 are all used for connecting VCC; the pin 3 of the first power supply chip U5 and one end of the resistor R27 and one end of the resistor R29 are all connected; the pin 4 of the first power supply chip U5 is connected with one end of the capacitor C23; the other end of the capacitor C22, the other end of the capacitor C25, the other end of the capacitor C27, the other end of the resistor R29 and the other end of the capacitor C23 are all connected with GND; the pin 1 of the first power supply chip U5 is connected with one end of the capacitor C19; the pin 8 of the first power supply chip U5 is connected with the other end of the capacitor C19, the negative electrode of the diode D2 and one end of the inductor L2; the pin 7 of the first power supply chip U5, the positive electrode of the diode D5, one end of the capacitor C21, one end of the capacitor C20, one end of the capacitor C24, one end of the resistor R30 and one end of the resistor R28 are all connected with GND; the pin 6 of the first power supply chip U5 is connected with the other end of the capacitor C24 and one end of the capacitor C26; the other end of the capacitor C26 is connected with the other end of the resistor R30; the pin 5 of the first power supply chip U5 is connected with one end of the resistor R26 and the other end of the resistor R28; the other end of the inductor L2 is connected with the other end of the capacitor C21, the other end of the capacitor C20 and the other end of the resistor R26, and the second processing module.
[0032] Wherein, VCC is 12V.
[0033] In the embodiment, the first processing module includes a first expansion unit and a first processing unit; as Figure 5As shown, the first extension unit includes a first extension chip U8, a capacitor C31, a resistor R60 and a resistor R53; the first extension chip U8 is PCA9555PW,118; the No.1 pin of the first extension chip U8 is connected with one end of the resistor R53; the No.21 pin of the first extension chip U8 is connected with one end of the resistor R60; the No.24 pin of the first extension chip U8, the other end of the resistor R53, one end of the capacitor C31, the other end of the resistor R60 are all connected with the other end of the inductor L1; the other end of the capacitor C31 is connected with GND; the No.22 pin and the No.23 pin of the first extension chip U8 are all connected with the input end of the second processing module; the first input end of the first processing unit is used for connecting with the oil consumption controller; the second input end of the first processing unit and the other end of the inductor L1 are all connected; and the output end of the first processing unit is connected with the first extension chip U8.
[0034] In the embodiment, the first processing unit includes a first operational amplifier and a first sub-input unit; as shown, Figure 6 the first operational amplifier is LM324DT, and the first operational amplifier includes a first sub-operational amplification unit U9A; the first sub-input unit includes a stabilizing diode Z1, a resistor R54, a resistor R62, a resistor R43, a resistor R40 and a resistor R41; one end of the resistor R54 is used for connecting with the oil consumption controller; the other end of the resistor R54, the negative electrode of the stabilizing diode Z1 and one end of the resistor R62 are all connected with the No.2 pin of the first sub-operational amplification unit U9A; the positive electrode of the stabilizing diode Z1 is connected with the other end of the resistor R62; one end of the resistor R40 and the No.4 pin of the first sub-operational amplification unit U9A are all connected with the other end of the inductor L1; the other end of the resistor R40 and one end of the resistor R43 are all connected with the No.3 pin of the first sub-operational amplification unit U9A; the other end of the resistor R43 and the No.11 pin of the first sub-operational amplification unit U9A are all connected with GND; the No.1 pin of the first sub-operational amplification unit U9A is connected with one end of the resistor R41; and the other end of the resistor R41 is connected with the No.4 pin of the first extension chip U8.
[0035] The first sub-input unit further includes a MOS tube Q16, a resistor R39 and a resistor R56; the gate of the MOS tube Q16 and one end of the resistor R56 are all connected with the No.7 pin of the first sub-operational amplification unit U9A, the source of the MOS tube Q16 and the other end of the resistor R56 are all connected with GND, one end of the resistor R39 is connected with the drain of the MOS tube Q16, and the other end of the resistor R39 is used for connecting with the indicator lamp.
[0036] In the embodiment, the first processing unit further includes a second sub-input unit; as shown, Figure 7As shown, the first operational amplifier includes a second sub-operational amplifier unit U9B; the second sub-input unit includes a Zener diode Z2, resistors R58, R66, R50, R44, and R47; one end of resistor R58 is connected to the fuel consumption controller; the other end of resistor R58, the cathode of Zener diode Z2, and one end of resistor R66 are all connected to pin 5 of the second sub-operational amplifier unit U9B; the anode of Zener diode Z2 is connected to the other end of resistor R66. One end of resistor R44 and pin 4 of the second sub-operational amplifier unit U9B are both connected to the other end of inductor L1; the other end of resistor R44 and one end of resistor R50 are both connected to pin 6 of the second sub-operational amplifier unit U9B; the other end of resistor R50 and pin 11 of the second sub-operational amplifier unit U9B are both connected to GND; pin 7 of the second sub-operational amplifier unit U9B is connected to one end of resistor R47; the other end of resistor R47 is connected to pin 5 of the first expansion chip U8.
[0037] The second sub-input unit also includes a MOSFET Q17, a resistor R42, and a resistor R61. The gate of the MOSFET Q17 and one end of the resistor R61 are both connected to pin 7 of the second sub-operational amplifier unit U9B. The source of the MOSFET Q17 and the other end of the resistor R61 are both connected to GND. One end of the resistor R42 is connected to the drain of the MOSFET Q17, and the other end of the resistor R42 is used to connect an indicator light.
[0038] In one optional implementation, the first processing unit further includes a third sub-input unit and a fourth sub-input unit. The structures of the third sub-input unit and the fourth sub-input unit are the same as those of the first sub-operational amplifier unit / second sub-operational amplifier unit, and the third sub-input unit and the fourth sub-input unit are respectively connected to pin 6 and pin 7 of the first expansion chip U8.
[0039] In one optional implementation, the number of first processing units is set to several, and the several first processing units are connected sequentially from pin 4 to pin 20 of the first expansion chip U8.
[0040] In this embodiment, as Figure 2 As shown, the second processing module includes a processing chip U2, resistors R17 and R19; the processing chip U2 is an MT7688-Smt; pins 3 and 4 of the processing chip U2, one end of resistor R17, and one end of resistor R19 are all connected to the other end of inductor L1; pin 25 of the processing chip U2 is connected to the other end of resistor R17 and pin 22 of the first expansion chip U8; pin 26 of the processing chip U2 is connected to the other end of resistor R19 and pin 23 of the first expansion chip U8.
[0041] In the embodiment, as shown in Figure 2 The second processing module further comprises a receiving chip U3, a capacitor C5, a capacitor C7, a resistor R10 and a resistor R11; the receiving chip U3 is MAX232ESE; the No. 2 pin of the receiving chip U3 is connected with one end of the capacitor C5; the No. 16 pin of the receiving chip U3, the other end of the capacitor C5 and one end of the capacitor C7 are all connected with the other end of the inductor L2; the other end of the capacitor C7 is connected with GND; the No. 11 pin of the receiving chip U3 is connected with one end of the resistor R10; the other end of the resistor R10 is connected with the No. 16 pin of the processing chip U2; the No. 12 pin of the receiving chip U3 is connected with one end of the resistor R11; the other end of the resistor R11 is connected with the No. 17 pin of the processing chip U2.
[0042] In the embodiment, the third processing module comprises a second expansion unit and a second processing unit; as shown in Figure 8 The second expansion unit comprises a second expansion chip U1, a capacitor C2 and a resistor R1; the second expansion chip U1 is PCA9555PW,118; the No. 1 pin of the second expansion chip U1 is connected with one end of the resistor R1; the No. 24 pin of the second expansion chip U8, the other end of the resistor R1 and one end of the capacitor C2 are all connected with the other end of the inductor L1; the other end of the capacitor C2 is connected with GND; the No. 22 pin of the second expansion chip U1 is connected with the No. 25 pin of the processing chip U2; the No. 23 pin of the second expansion chip U1 is connected with the No. 26 pin of the processing chip U2; the input end of the second processing unit is connected with the second expansion chip U1; the output end of the second processing unit is used for being connected with the oil consumption controller.
[0043] In the embodiment, the second processing unit comprises a first sub-output unit; as shown in Figure 9 The first sub-output unit comprises a MOS transistor Q1 and a resistor R2; the gate of the MOS transistor Q1 and one end of the resistor R2 are both connected with the No. 4 pin of the second expansion chip U1; the source of the MOS transistor Q1 and the other end of the resistor R2 are both connected with GND; the drain of the MOS transistor Q1 is used for being connected with the oil consumption controller.
[0044] In an optional embodiment, a plurality of first sub-output units are provided, and the plurality of first sub-output units are sequentially connected from the No. 4 pin of the second expansion chip U1 to the No. 20 pin of the second expansion chip U1.
[0045] The working principle of the oil consumption controller detection circuit in the embodiment is as follows:
[0046] Input signal: the input end of the operational amplifier is connected with the oil consumption controller, the operational amplifier receives and processes the output signal of the oil consumption controller, so that the output signal meets the TTL level standard, the output signal processed by the operational amplifier is transmitted to the processing chip U2 for processing through the first expansion chip U8, and is transmitted to the indicator light for state display at the same time.
[0047] Output signal: the processing chip U2 generates corresponding output signals according to the received commands, and transmits the output signals to the oil consumption controller after the output signals pass through the second expansion chip U1 and the first sub-output unit, so as to improve the detection efficiency, reduce the influence of human errors, and ensure the accuracy of the detection results.
[0048] Although the utility model has been described herein with reference to a number of explanatory embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope of the present application, drawings and claims, various modifications and improvements can be made to the constituent components and / or layout of the subject combination layout. In addition to the modifications and improvements to the constituent components and / or layout, other uses will also be apparent to those skilled in the art.
Claims
1. A fuel consumption controller detection circuit, characterized by, The detection circuit comprises: a first processing module, an input end of the first processing module being connected with the oil consumption controller; a second processing module, an input end of the second processing module being connected with a first output end of the first processing module; a third processing module, an input end of the third processing module being connected with an output end of the second processing module, and an output end of the third processing module being connected with the oil consumption controller; a power module, the power module being connected with the first processing module, the second processing module and the third processing module.
2. The detection circuit according to claim 1, wherein: the power module comprises a first power unit; the first power unit comprises a first power chip U4, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, a capacitor C14, a capacitor C15, a capacitor C16, a capacitor C17, a resistor R21, a resistor R22, a resistor R23, a resistor R24, a resistor R25, an inductor L1 and a diode D1; the first power chip U4 is TPS54331 DR; a No. 2 pin of the first power chip U4, one end of the capacitor C13, one end of the capacitor C16, one end of the capacitor C18, one end of the resistor R22 are all connected with VCC; a No. 3 pin of the first power chip U4 and one end of the resistor R24 are all connected; a No. 4 pin of the first power chip U4 is connected with one end of the capacitor C14; the other end of the capacitor C13, the other end of the capacitor C16, the other end of the capacitor C18, the other end of the resistor R24, the other end of the capacitor C14 are all connected with GND; a No. 1 pin of the first power chip U4 is connected with one end of the capacitor C10; a No. 8 pin of the first power chip U4 is connected with the other end of the capacitor C10, a negative electrode of the diode D1 and one end of the inductor L1; a No. 7 pin of the first power chip U4, a positive electrode of the diode D1, one end of the capacitor C12, one end of the capacitor C11, one end of the capacitor C15, one end of the resistor R25 and one end of the resistor R23 are all connected with GND; a No. 6 pin of the first power chip U4 is connected with the other end of the capacitor C15 and one end of the capacitor C17; the other end of the capacitor C17 is connected with the other end of the resistor R25; a No. 5 pin of the first power chip U4 is connected with one end of the resistor R21 and the other end of the resistor R23; the other end of the inductor L1 is connected with the other end of the capacitor C12, the other end of the capacitor C11 and the other end of the resistor R21, and the first processing module, the second processing module and the third processing module are all connected.
3. The detection circuit according to claim 2, wherein: the power module further comprises a second power unit; the second power unit comprises a second power chip U5, a capacitor C19, a capacitor C20, a capacitor C21, a capacitor C22, a capacitor C23, a capacitor C24, a capacitor C25, a capacitor C26, a capacitor C27, a resistor R26, a resistor R27, a resistor R28, a resistor R29, a resistor R30, an inductor L2 and a diode D2. The first power chip U5 is TPS54331 DR; The No. 2 pin of the first power chip U5, one end of the capacitor C22, one end of the capacitor C25, one end of the capacitor C27 and one end of the resistor R27 are all connected with VCC; The No. 3 pin of the first power chip U5 and one end of the resistor R27 and one end of the resistor R29 are all connected; The No. 4 pin of the first power chip U5 is connected with one end of the capacitor C23; The other end of the capacitor C22, the other end of the capacitor C25, the other end of the capacitor C27, the other end of the resistor R29 and the other end of the capacitor C23 are all connected with GND; The No. 1 pin of the first power chip U5 is connected with one end of the capacitor C19; The No. 8 pin of the first power chip U5, the other end of the capacitor C19, the negative electrode of the diode D2 and one end of the inductor L2 are all connected; The No. 7 pin of the first power chip U5, the positive electrode of the diode D5, one end of the capacitor C21, one end of the capacitor C20, one end of the capacitor C24, one end of the resistor R30 and one end of the resistor R28 are all connected with GND; The No. 6 pin of the first power chip U5 is connected with the other end of the capacitor C24 and one end of the capacitor C26; The other end of the capacitor C26 is connected with the other end of the resistor R30; The No. 5 pin of the first power chip U5 is connected with one end of the resistor R26 and the other end of the resistor R28; The other end of the inductor L2 is connected with the other end of the capacitor C21, the other end of the capacitor C20 and the other end of the resistor R26, and is also connected with the second processing module.
4. The detection circuit according to claim 3, characterized in that: The first processing module comprises a first expansion unit and a first processing unit; The first expansion unit comprises a first expansion chip U8, a capacitor C31, a resistor R60 and a resistor R53; The first expansion chip U8 is PCA9555PW,118; The No. 1 pin of the first expansion chip U8 is connected with one end of the resistor R53; The No. 21 pin of the first expansion chip U8 is connected with one end of the resistor R60; The No. 24 pin of the first expansion chip U8, the other end of the resistor R53, one end of the capacitor C31 and the other end of the resistor R60 are all connected with the other end of the inductor L1; The other end of the capacitor C31 is connected with GND; The No. 22 pin and the No. 23 pin of the first expansion chip U8 are both connected with the input end of the second processing module; The first input end of the first processing unit is used for being connected with the oil consumption controller; The other end of the inductor L1 and the second input end of the first processing unit are both connected; The output end of the first processing unit is connected with the first expansion chip U8.
5. The detection circuit according to claim 4, characterized in that: The first processing unit comprises a first operational amplifier and a first sub-input unit; The first operational amplifier is LM324DT, and the first operational amplifier comprises a first sub-operational amplification unit U9A; The first sub-input unit comprises a stabilizing diode Z1, a resistor R54, a resistor R62, a resistor R43, a resistor R40 and a resistor R41; One end of the resistor R54 is used for connecting with the oil consumption controller; The other end of the resistor R54, the negative electrode of the voltage stabilizing diode Z1 and one end of the resistor R62 are all connected with the No. 2 pin of the first sub operational amplifier unit U9A; The positive electrode of the voltage stabilizing diode Z1 is connected with the other end of the resistor R62; One end of the resistor R40 and the No. 4 pin of the first sub operational amplifier unit U9A are all connected with the other end of the inductor L1; The other end of the resistor R40 and one end of the resistor R43 are all connected with the No. 3 pin of the first sub operational amplifier unit U9A; The other end of the resistor R43 and the No. 11 pin of the first sub operational amplifier unit U9A are all connected with GND; The No. 1 pin of the first sub operational amplifier unit U9A is connected with one end of the resistor R41; The other end of the resistor R41 is connected with the No. 4 pin of the first expansion chip U8.
6. The detection circuit according to claim 5, characterized in that: The first processing unit further comprises a second sub input unit; The first operational amplifier comprises a second sub operational amplifier unit U9B; The second sub input unit comprises a voltage stabilizing diode Z2, a resistor R58, a resistor R66, a resistor R50, a resistor R44 and a resistor R47; One end of the resistor R58 is used for connecting with the oil consumption controller; The other end of the resistor R58, the negative electrode of the voltage stabilizing diode Z2 and one end of the resistor R66 are all connected with the No. 5 pin of the second sub operational amplifier unit U9B; The positive electrode of the voltage stabilizing diode Z2 is connected with the other end of the resistor R66; One end of the resistor R44 and the No. 4 pin of the second sub operational amplifier unit U9B are all connected with the other end of the inductor L1; The other end of the resistor R44 and one end of the resistor R50 are all connected with the No. 6 pin of the second sub operational amplifier unit U9B; The other end of the resistor R50 and the No. 11 pin of the second sub operational amplifier unit U9B are all connected with GND; The No. 7 pin of the second sub operational amplifier unit U9B is connected with one end of the resistor R47; The other end of the resistor R47 is connected with the No. 5 pin of the first expansion chip U8.
7. The detection circuit according to claim 6, characterized in that: The second processing module comprises a processing chip U2, a resistor R17 and a resistor R19; The processing chip U2 is MT7688-Smt; The No. 3 pin, the No. 4 pin of the processing chip U2, one end of the resistor R17 and one end of the resistor R19 are all connected with the other end of the inductor L1; The No. 25 pin of the processing chip U2 is connected with the other end of the resistor R17 and the No. 22 pin of the first expansion chip U8; The No. 26 pin of the processing chip U2 is connected with the other end of the resistor R19 and the No. 23 pin of the first expansion chip U8.
8. The detection circuit according to claim 7, characterized in that: The second processing module further comprises a receiving chip U3, a capacitor C5, a capacitor C7, a resistor R10 and a resistor R11; The receiving chip U3 is MAX232ESE; The No. 2 pin of the receiving chip U3 is connected with one end of the capacitor C5; The pin 16 of the receiving chip U3, the other end of the capacitor C5 and the one end of the capacitor C7 are connected with the other end of the inductor L2; The other end of the capacitor C7 is connected with GND; The pin 11 of the receiving chip U3 is connected with the one end of the resistor R10; The other end of the resistor R10 is connected with the pin 16 of the processing chip U2; The pin 12 of the receiving chip U3 is connected with the one end of the resistor R11; The other end of the resistor R11 is connected with the pin 17 of the processing chip U2.
9. The detection circuit according to claim 7, characterized in that: The third processing module comprises a second expansion unit and a second processing unit; The second expansion unit comprises a second expansion chip U1, a capacitor C2 and a resistor R1; The second expansion chip U1 is PCA9555PW,118; The pin 1 of the second expansion chip U1 is connected with the one end of the resistor R1; The pin 24 of the second expansion chip U8, the other end of the resistor R1 and the one end of the capacitor C2 are connected with the other end of the inductor L1; The other end of the capacitor C2 is connected with GND; The pin 22 of the second expansion chip U1 is connected with the pin 25 of the processing chip U2; The pin 23 of the second expansion chip U1 is connected with the pin 26 of the processing chip U2; The input end of the second processing unit is connected with the second expansion chip U1; The output end of the second processing unit is used for being connected with the oil consumption controller.
10. The detection circuit according to claim 9, characterized in that: The second processing unit comprises a first sub-output unit; The first sub-output unit comprises a MOS tube Q1 and a resistor R2; The gate of the MOS tube Q1 and the one end of the resistor R2 are connected with the pin 4 of the second expansion chip U1; The source of the MOS tube Q1 and the other end of the resistor R2 are connected with GND; The drain of the MOS tube Q1 is used for being connected with the oil consumption controller.