Integrated oil supply self-control storage and transportation system

Abstract

The utility model discloses an integrated oil supply self-control storage and transportation system, and belongs to the technical field of oil supply storage and transportation systems. The input end of the state indication module is electrically connected with the output end of the control module; the input end of the optocoupler isolation module is electrically connected with the output end of the control module; and the output end of the sensor interface module is electrically connected with the input end of the control module. An analog signal of oil leakage of an oil pump is received through the sensor interface module and converted into a digital signal, the control module receives the digital signal and controls a switch of the oil pump through the optical coupler isolation module, and the state indication module is used for fault alarm and oil leakage state prompt, so that the function of integrated automatic control over oil supply, storage and transportation is achieved. And the problems of delay and inaccuracy in display are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil supply storage and transportation systems, in particular to an integrated oil supply automatic storage and transportation system. Background Art

[0002] The automatic fuel supply storage and transportation system is a control system designed for the fuel supply system of the generator. It is a system for controlling the entire process of transporting diesel from the fuel tank to the fuel tank and then from the fuel tank to the generator.

[0003] However, the structure of the existing oil supply automatic storage and transportation system is complex and not integrated enough; and the existing fault alarm and oil leakage status display have delay and inaccuracy problems; this is mainly due to the problem of signal interference in the conversion between analog signals and digital signals, which leads to delays; and the circuit displaying the oil leakage status also has the problem of current interference, which leads to inaccurate display. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems and / or the problems existing in the prior art, the present utility model is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to solve the problem of not being able to quickly and accurately display the oil leakage status.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: an integrated oil supply automatic storage and transportation system, which includes a control module; a status indication module, whose input end is electrically connected to the output end of the control module; an optical coupling isolation module, whose input end is electrically connected to the output end of the control module; and a sensor interface module, whose output end is electrically connected to the input end of the control module.

[0008] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, the state indication module includes resistors VR1~VR4, recovery diodes VD1~VD2, capacitors VC1~VC3, transistors VQ1~VQ2, light-emitting diodes HLED4 and selection switches VL1~VL2; one end of the capacitor VC1 is connected to pin 15 of the control module, the other end of the capacitor VC1 is connected to the base of the transistor VQ1, the collector of the transistor VQ1 is connected to one end of the resistor VR2 and the base of the transistor VQ2, the other end of the resistor VR2 is connected to pin 1 of the selection switch VL1 and pin 1 of the selection switch VL2, the collector of the transistor VQ2 is connected to pin 2 of the selection switch VL1 and pin 2 of the selection switch VL2, the light-emitting diode HLED4 is connected in parallel between the selection switch VL1 and the selection switch VL2, and the emitter of the transistor VQ1 and the emitter of the transistor VQ2 are both connected to the capacitor VC1.

[0009] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, the recovery diode VD1 and the resistor VR1 are connected in series, and the recovery diode VD1 and the resistor VR1 connected in series are arranged in the path between the capacitor VC1 and the base of the transistor VQ1; the recovery diode VD2 is arranged in the path between the emitter of the transistor VQ2 and the capacitor VC1.

[0010] As a preferred solution of the utility model integrated oil supply automatic storage and transportation system, wherein: capacitor VC2 is connected between the recovery diode VD1 and the recovery diode VD2; capacitor VC3 and resistor VR3 are both connected between the collector of transistor VQ1 and the emitter of transistor VQ1, and capacitor VC3 and resistor VR3 are connected in parallel; resistor VR4 is connected in parallel between the selection switch VL1 and the selection switch VL2, and resistor VR4 is connected in series with light-emitting diode HLED4.

[0011] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, wherein: the optical coupling isolation module includes an optical coupler AIC1 and an optical coupler AIC2, the 4th pin of the optical coupler AIC1 is connected to the 51st pin of the control module, and the 4th pin of the optical coupler AIC2 is connected to the 52th pin of the control module; the 3rd pin of the optical coupler AIC1 is grounded, the 3rd pin of the optical coupler AIC2 is grounded, a capacitor AC1 is provided between the 3rd pin and the 2nd pin of the optical coupler AIC1, a capacitor AC2 is provided between the 3rd pin and the 2nd pin of the optical coupler AIC2, a resistor AR1 and a resistor AR2 are bridged between the 4th pin of the optical coupler AIC1 and the 4th pin of the optical coupler AIC2, the resistor AR1 and the resistor AR2 are connected in series, and the series-connected resistor AR1 and the resistor AR2 are connected to a 3.3V voltage.

[0012] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, wherein: the optical coupling isolation module also includes an open state indication connector, an interface connector and a closed state indication connector; pin 1 of the optical coupler AIC1 is connected to pin 2 of the state indication connector, pin 2 of the optical coupler AIC1 is connected to pin 1 of the state indication connector and pin 3 of the interface connector, pin 2 of the interface connector is grounded, pin 2 of the optical coupler AIC2 is connected to pin 1 of the interface connector and pin 1 of the closed state indication connector, and pin 1 of the optical coupler AIC2 is connected to pin 2 of the closed state indication connector.

[0013] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, wherein: a diode ALED1 and a resistor AR3 are provided on the path between pin 1 of the optical coupler AIC1 and pin 2 of the status indication connector, and the diode ALED1 and the resistor AR3 are connected in series; a diode ALED2 and a resistor AR4 are provided on the path between pin 1 of the optical coupler AIC2 and pin 2 of the closed status indication connector, and the diode ALED2 and the resistor AR4 are connected in series; pin 2 of the open status indication connector is also connected to a 24V voltage, and pin 2 of the closed status indication connector is also connected to a 24V voltage.

[0014] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, the sensor interface module includes a signal amplifier and an analog input port, the output end of the signal amplifier is connected to pin 24 of the control module, the positive input end of the signal amplifier is connected to pin 1 of the analog input port, the negative input end of the signal amplifier is connected to pin 2 of the analog input port, and pin 3 of the analog input port is connected to a 24V voltage.

[0015] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, wherein: a resistor NR2 is provided on the path between the negative input terminal of the signal amplifier and the 2nd pin of the analog input port, a resistor NR3 is provided on the path between the positive input terminal of the signal amplifier and the 1st pin of the analog input port, a capacitor NC1 and a resistor NR1 are bridged between the resistor NR2 and the resistor NR3, and the capacitor NC1 and the resistor NR1 are connected in parallel.

[0016] As a preferred solution of the integrated oil supply automatic storage and transportation system of the utility model, wherein: a resistor NR4 is connected across the negative input terminal and the output terminal of the signal amplifier, the positive electrode of the signal amplifier is connected to a 5V voltage, the negative electrode of the signal amplifier is grounded, the positive electrode of the signal amplifier is connected to a capacitor NC3, and the capacitor NC3 is grounded, the positive input terminal of the signal amplifier is connected to a resistor NR5, and the resistor NR5 is grounded, and the output terminal of the signal amplifier is connected to a capacitor NC2, and the capacitor NC2 is grounded.

[0017] The beneficial effects of the utility model are as follows: the analog signal of oil pump leakage is received through the sensor interface module and converted into a digital signal, and this conversion process can reduce signal interference and delay; the control module receives the digital signal and controls the switch of the oil pump through the optical coupling isolation module, and the status indication module is used for fault alarm and oil leakage status prompt, and the status indication module can reduce the problem of current interference and avoid inaccurate display; and finally realizes the function of integrated automatic control of oil supply, storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a connection diagram of the integrated oil supply automatic storage and transportation system of the utility model.

[0020] Figure 2 It is a circuit diagram of the integrated oil supply automatic storage and transportation system of the utility model.

[0021] Figure 3 The circuit diagram is a sensor interface module of the integrated oil supply automatic storage and transportation system of the utility model.

[0022] Figure 4 The utility model is a circuit diagram of the optocoupler isolation module of the integrated oil supply automatic storage and transportation system.

[0023] Figure 5 The utility model is a circuit diagram of a status indication module of an integrated oil supply automatic control storage and transportation system. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1

[0028] Reference Figure 1 , which is the first embodiment of the utility model, provides an integrated oil supply automatic storage and transportation system, including a control module 100, a sensor interface module 400, an optical coupling isolation module 300 and a status indication module 200.

[0029] Specifically, the output end of the sensor interface module 400 is electrically connected to the input end of the control module 100; the input end of the optocoupler isolation module 300 is electrically connected to the output end of the control module 100; the input end of the status indication module 200 is electrically connected to the output end of the control module 100; the control module 100 is the core control unit of the entire circuit, responsible for processing the input of the sensor interface module 400 and controlling the output of the optocoupler isolation module 300 and the status indication module 200; the model of the control module 100 in this embodiment is STM32F103R.

[0030] When in use, the sensor interface module 400 is used to collect the analog signal of oil pump leakage and convert the analog signal into a digital signal. The control module 100 is used to receive the digital signal output by the sensor interface module 400, and the control module 100 controls the switch of the oil pump through the optocoupler isolation module 300. The status indication module 200 is used for fault alarm and oil leakage status prompt, thereby realizing the function of integrated automatic control of oil supply, storage and transportation.

[0031] Example 2

[0032] Reference Figure 1 to Figure 5 , which is the second embodiment of the utility model, and this embodiment is based on embodiment 1.

[0033] Specifically, the state indicating module 200 includes resistors VR1-VR4, recovery diodes VD1-VD2, capacitors VC1-VC3, transistors VQ1-VQ2, light emitting diodes HLED4 and selection switches VL1-VL2;

[0034] One end of capacitor VC1 is connected to pin 15 of the control module 100, the other end of capacitor VC1 is connected to the base of transistor VQ1, the collector of transistor VQ1 is connected to one end of resistor VR2 and the base of transistor VQ2, the other end of resistor VR2 is connected to pin 1 of selection switch VL1 and pin 1 of selection switch VL2, the collector of transistor VQ2 is connected to pin 2 of selection switch VL1 and pin 2 of selection switch VL2, the light emitting diode HLED4 is connected in parallel between selection switch VL1 and selection switch VL2, and the emitter of transistor VQ1 and the emitter of transistor VQ2 are both connected to capacitor VC1.

[0035] Preferably, the recovery diode VD1 and the resistor VR1 are connected in series, and the series recovery diode VD1 and the resistor VR1 are arranged in the path between the capacitor VC1 and the base of the transistor VQ1; the recovery diode VD2 is arranged in the path between the emitter of the transistor VQ2 and the capacitor VC1.

[0036] Preferably, capacitor VC2 is connected between recovery diode VD1 and recovery diode VD2; capacitor VC3 and resistor VR3 are both connected between the collector of transistor VQ1 and the emitter of transistor VQ1, and capacitor VC3 and resistor VR3 are connected in parallel; resistor VR4 is connected in parallel between selection switch VL1 and selection switch VL2, and resistor VR4 is connected in series with light-emitting diode HLED4.

[0037] Resistor VR2 is used as a current limiting resistor to control the current entering the voltage stabilizing part; recovery diodes VD1~VD2 are used to prevent reverse current and protect circuit components; capacitors VC1 and VC2 are used as decoupling capacitors to filter out high-frequency noise; resistor VR1 is used for voltage division and works with transistor VQ1 to adjust the voltage; transistors VQ1~VQ2 are used for voltage regulation and current amplification; capacitor VC3 is used as a filter capacitor to smooth the voltage after voltage stabilization; resistor VR3 is used to adjust the output voltage and works with transistor VQ2 as a feedback resistor; resistor VR4 is used as a current limiting resistor to limit the current passing through light-emitting diode HLED4 and protect light-emitting diode HLED4; light-emitting diode HLED4 is used to indicate the working status of the circuit; selection switches VL1~VL2 are used to configure different working modes of the circuit.

[0038] Preferably, the optocoupler isolation module 300 includes an optocoupler AIC1 and an optocoupler AIC2, pin 4 of the optocoupler AIC1 is connected to pin 51 of the control module 100, and pin 4 of the optocoupler AIC2 is connected to pin 52 of the control module 100; pin 3 of the optocoupler AIC1 is grounded, and pin 3 of the optocoupler AIC2 is grounded, a capacitor AC1 is provided between pin 3 and pin 2 of the optocoupler AIC1, a capacitor AC2 is provided between pin 3 and pin 2 of the optocoupler AIC2, a resistor AR1 and a resistor AR2 are bridged between pin 4 of the optocoupler AIC1 and pin 4 of the optocoupler AIC2, the resistor AR1 and the resistor AR2 are connected in series, and the series-connected resistor AR1 and resistor AR2 are connected to a 3.3V voltage.

[0039] Preferably, the optocoupler isolation module 300 also includes an open state indication connector 301, an interface connector 302 and a closed state indication connector 303; pin 1 of the optocoupler AIC1 is connected to pin 2 of the state indication connector 301, pin 2 of the optocoupler AIC1 is connected to pin 1 of the state indication connector 301 and pin 3 of the interface connector 302, pin 2 of the interface connector 302 is grounded, pin 2 of the optocoupler AIC2 is connected to pin 1 of the interface connector 302 and pin 1 of the closed state indication connector 303, and pin 1 of the optocoupler AIC2 is connected to pin 2 of the closed state indication connector 303.

[0040] Furthermore, a diode ALED1 and a resistor AR3 are provided on the path between pin 1 of the optocoupler AIC1 and pin 2 of the status indication connector 301, and the diode ALED1 and the resistor AR3 are connected in series; a diode ALED2 and a resistor AR4 are provided on the path between pin 1 of the optocoupler AIC2 and pin 2 of the closed status indication connector 303, and the diode ALED2 and the resistor AR4 are connected in series; pin 2 of the open status indication connector 301 is also connected to a 24V voltage, and pin 2 of the closed status indication connector 303 is also connected to a 24V voltage.

[0041] The model of the optocoupler AIC1 and the optocoupler AIC2 of this embodiment is PC817; the optocoupler AIC1 and the optocoupler AIC2 are used for electrical isolation and signal transmission; the resistors AR1 and AR2 are used for current limiting to ensure the normal operation of the optocoupler AIC1 and the optocoupler AIC2; the resistors AR3 and AR4 are used to limit the current of the diodes ALED1 and ALED2 to protect the diodes ALED1 and ALED2; the diode ALED1 is a green light emitting diode for indicating the open state; the diode ALED1 is a red light emitting diode for indicating the closed state; the capacitors AC1 and AC2 are used for filtering and stabilizing the voltage; this circuit uses the optocoupler AIC1 and the optocoupler AIC2 for signal isolation, and uses the diodes ALED1 and ALED2 to indicate the switch state. The resistors AR1 to AR4 are used for current limiting to ensure the safe operation of each device, and the capacitors AC1 and AC2 are used for filtering and stabilizing the voltage. The 24V power supply is controlled by BV1-Open1 and BV1-Closed1, and its status is indicated by optocoupler AIC1\optocoupler AIC2 and diodes ALED1 and ALED2.

[0042] Furthermore, the sensor interface module 400 includes a signal amplifier 401 and an analog input port 402, the output end of the signal amplifier 401 is connected to pin 24 of the control module 100, the positive input end of the signal amplifier 401 is connected to pin 1 of the analog input port 402, the negative input end of the signal amplifier 401 is connected to pin 2 of the analog input port 402, and pin 3 of the analog input port 402 is connected to a 24V voltage.

[0043] Furthermore, a resistor NR2 is provided on the path between the negative input terminal of the signal amplifier 401 and pin 2 of the analog input port 402, a resistor NR3 is provided on the path between the positive input terminal of the signal amplifier 401 and pin 1 of the analog input port 402, a capacitor NC1 and a resistor NR1 are bridged between resistor NR2 and resistor NR3, and capacitor NC1 and resistor NR1 are connected in parallel.

[0044] Furthermore, a resistor NR4 is connected between the negative input terminal and the output terminal of the signal amplifier 401, the positive terminal of the signal amplifier 401 is connected to a 5V voltage, the negative terminal of the signal amplifier 401 is grounded, the positive terminal of the signal amplifier 401 is connected to a capacitor NC3, and the capacitor NC3 is grounded, the positive input terminal of the signal amplifier 401 is connected to a resistor NR5, and the resistor NR5 is grounded, the output terminal of the signal amplifier 401 is connected to a capacitor NC2, and the capacitor NC2 is grounded; the output terminal of the signal amplifier 401 is also connected to a diode NVD, and the 3-pin of the analog input port 402 is also connected to a NF fuse.

[0045] Capacitor NC1 is used as a filter capacitor to eliminate high-frequency noise in the input signal; resistor NR1 is used as a current limiting resistor to control the input current; resistors NR2 to NR4 are used to set the gain and stability of the operational amplifier; capacitor NC2 is used as a compensation capacitor to improve the stability of the signal amplifier 401 and prevent oscillation; capacitor NC3 is used as a filter capacitor to stabilize the 5V voltage; diode NVD is a protection diode to prevent reverse current from damaging the operational amplifier.

[0046] In order to facilitate understanding of the technical solution of the utility model, a brief description of its working process is given below:

[0047] First, the analog signal is input from the 2nd pin of the analog input port 402 (AnalogInput1), and the overcurrent protection is performed through the NF fuse. The signal is filtered through the NC1 capacitor to remove high-frequency noise, and then the current is limited through the NR1 resistor; the filtered and current-limited signal enters the negative input terminal of the signal amplifier 401, and the resistors NR2 and NR4 form a feedback network to set the gain of the signal amplifier 401; the resistors NR3 and NR5 form a voltage divider network to set the reference voltage of the non-reverse input terminal; the signal amplifier 401 amplifies the input signal, and the output signal is output from the output terminal; the amplified signal is output to AD_Current1 through the diode NVD, and the diode NVD provides reverse protection; the AD_Current1 node is grounded through the capacitor NC2 to stabilize the output signal; and the signal enters the control module 100 through the AD_Current1 and the 24th pin of the control module 100;

[0048] Then the control module 100 conveniently connects and controls with external devices through the open state indication connector 301, the interface connector 302 and the closed state indication connector 303, so as to monitor and indicate the system state;

[0049] At the same time, the control module 100 is used to configure different working modes of the circuit through the selection switches VL1-VL2, and is used to indicate the working state of the circuit through the light emitting diode HLED4, which is used for fault alarm and oil leakage status prompt.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An integrated oil supply automatic storage and transportation system, characterized in that: include, Control module (100); A sensor interface module (400), an output end of which is electrically connected to an input end of the control module (100); An optical coupling isolation module (300), the input end of which is electrically connected to the output end of the control module (100); The state indicating module (200) has an input end electrically connected to the output end of the control module (100).

2. The integrated oil supply automatic storage and transportation system according to claim 1, characterized in that: A state indicating module (200), comprising a resistor VR1, a resistor VR2, a resistor VR3, a resistor VR4, a recovery diode VD1, a recovery diode VD2, a capacitor VC1, a capacitor VC2, a capacitor VC3, a transistor VQ1, a transistor VQ2, a light emitting diode HLED4, a selection switch VL1, and a selection switch VL2; One end of the capacitor VC1 is connected to the 15th pin of the control module (100), the other end of the capacitor VC1 is connected to the base of the transistor VQ1, the collector of the transistor VQ1 is connected to one end of the resistor VR2 and the base of the transistor VQ2, the other end of the resistor VR2 is connected to the 1st pin of the selection switch VL1 and the 1st pin of the selection switch VL2, the collector of the transistor VQ2 is connected to the 2nd pin of the selection switch VL1 and the 2nd pin of the selection switch VL2, the light emitting diode HLED4 is connected in parallel between the selection switch VL1 and the selection switch VL2, and the emitter of the transistor VQ1 and the emitter of the transistor VQ2 are both connected to the capacitor VC1.

3. The integrated oil supply automatic storage and transportation system according to claim 2, characterized in that: The recovery diode VD1 and the resistor VR1 are connected in series, and the series recovery diode VD1 and the resistor VR1 are arranged in a path between the capacitor VC1 and the base of the transistor VQ1; the recovery diode VD2 is arranged in a path between the emitter of the transistor VQ2 and the capacitor VC1.

4. The integrated oil supply automatic storage and transportation system according to claim 2, characterized in that: Capacitor VC2 is connected between recovery diode VD1 and recovery diode VD2; capacitor VC3 and resistor VR3 are both connected between the collector of transistor VQ1 and the emitter of transistor VQ1, and capacitor VC3 and resistor VR3 are connected in parallel; resistor VR4 is connected in parallel between selection switch VL1 and selection switch VL2, and resistor VR4 is connected in series with light emitting diode HLED4.

5. The integrated oil supply automatic storage and transportation system according to claim 1 or 4, characterized in that: The optical coupling isolation module (300) comprises an optical coupler AIC1 and an optical coupler AIC2, wherein the 4th pin of the optical coupler AIC1 is connected to the 51th pin of the control module (100), and the 4th pin of the optical coupler AIC2 is connected to the 52th pin of the control module (100); the 3rd pin of the optical coupler AIC1 is grounded, and the 3rd pin of the optical coupler AIC2 is grounded; a capacitor AC1 is provided between the 3rd pin and the 2nd pin of the optical coupler AIC1, and a capacitor AC2 is provided between the 3rd pin and the 2nd pin of the optical coupler AIC2; a resistor AR1 and a resistor AR2 are bridged between the 4th pin of the optical coupler AIC1 and the 4th pin of the optical coupler AIC2, the resistor AR1 and the resistor AR2 are connected in series, and the series-connected resistor AR1 and the resistor AR2 are connected to a 3.3V voltage.

6. The integrated oil supply automatic storage and transportation system according to claim 5, characterized in that: The optical coupling isolation module (300) further comprises an open state indication connector (301), an interface connector (302) and a closed state indication connector (303); pin 1 of the optical coupler AIC1 is connected to pin 2 of the state indication connector (301), pin 2 of the optical coupler AIC1 is connected to pin 1 of the state indication connector (301) and pin 3 of the interface connector (302), pin 2 of the interface connector (302) is grounded, pin 2 of the optical coupler AIC2 is connected to pin 1 of the interface connector (302) and pin 1 of the closed state indication connector (303), and pin 1 of the optical coupler AIC2 is connected to pin 2 of the closed state indication connector (303).

7. The integrated oil supply automatic storage and transportation system as claimed in claim 6, characterized in that: A diode ALED1 and a resistor AR3 are provided on the path between pin 1 of the optical coupler AIC1 and pin 2 of the state indication connector (301), and the diode ALED1 and the resistor AR3 are connected in series; a diode ALED2 and a resistor AR4 are provided on the path between pin 1 of the optical coupler AIC2 and pin 2 of the closed state indication connector (303), and the diode ALED2 and the resistor AR4 are connected in series; pin 2 of the open state indication connector (301) is also connected to a 24V voltage, and pin 2 of the closed state indication connector (303) is also connected to a 24V voltage.

8. The integrated oil supply automatic storage and transportation system according to claim 1, characterized in that: The sensor interface module (400) comprises a signal amplifier (401) and an analog input port (402), wherein the output end of the signal amplifier (401) is connected to pin 24 of the control module (100), the positive input end of the signal amplifier (401) is connected to pin 1 of the analog input port (402), the negative input end of the signal amplifier (401) is connected to pin 2 of the analog input port (402), and pin 3 of the analog input port (402) is connected to a 24V voltage.

9. The integrated oil supply automatic storage and transportation system according to claim 8, characterized in that: A resistor NR2 is provided on the path between the negative input terminal of the signal amplifier (401) and the 2nd pin of the analog input port (402), a resistor NR3 is provided on the path between the positive input terminal of the signal amplifier (401) and the 1st pin of the analog input port (402), a capacitor NC1 and a resistor NR1 are bridged between the resistors NR2 and NR3, and the capacitor NC1 and the resistor NR1 are connected in parallel.

10. The integrated oil supply automatic storage and transportation system according to claim 9, characterized in that: A resistor NR4 is connected between the negative input terminal and the output terminal of the signal amplifier (401); the positive terminal of the signal amplifier (401) is connected to a 5V voltage; the negative terminal of the signal amplifier (401) is grounded; the positive terminal of the signal amplifier (401) is connected to a capacitor NC3, and the capacitor NC3 is grounded; the positive input terminal of the signal amplifier (401) is connected to a resistor NR5, and the resistor NR5 is grounded; the output terminal of the signal amplifier (401) is connected to a capacitor NC2, and the capacitor NC2 is grounded.

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