Power supply simulation device, detection system and detection method

Abstract

The invention discloses a power supply simulation device, a detection system and a detection method, and belongs to the field of power supplies and tests. The power supply simulation device comprises a power supply simulation module, a first control switch, a voltage detection module, a first connection contact and a second connection contact. The first end of the power supply simulation module is electrically connected with the first end of the first control switch, the second end of the first control switch is electrically connected with the first connecting contact, the second connecting contact is electrically connected with the second end of the power supply simulation module, and the first end of the power supply simulation module is electrically connected with the voltage detection module; wherein the first connection contact and the second connection contact are used for being connected with a target power receiving device, the power supply simulation module comprises a direct-current power supply and a parameter simulator which are connected, the parameter simulator is used for being matched with the direct-current power supply to simulate various parameters of a target power supply, and the parameters of the target power supply comprise at least one of equivalent internal resistance and equivalent capacitance. And the negative electrode end of the direct-current power supply is electrically connected with the second connecting contact.

Description

Technical Field

[0001] The present application belongs to the field of power supply and testing, and specifically relates to a power supply simulation device, a detection system and a detection method. Background Art

[0002] The use of fluid flow meters is becoming more and more widespread. A large number of fluid flow meters have built-in batteries, which provide electrical energy for the fluid flow meters to operate. Usually, fluid flow meters are statutory measuring instruments and require type evaluation and approval testing and factory inspection. At present, when performing type evaluation testing on fluid flow meters with built-in batteries, the batteries in the fluid flow meters are removed, and then the fluid flow meters are installed on the detection system. However, the detection system does not have a dedicated power supply for the fluid flow meter. Instead, an independent DC power supply is connected to the fluid flow meter, and the fluid flow meter is powered by an external DC power supply. After that, the detection system detects whether the flow value measured by the fluid flow meter is accurate when the DC power supply provides different voltages to the fluid flow meter. However, the DC power supply used in the detection system usually provides a current of several amperes, while the current provided by the battery in the fluid flow meter is usually several milliamperes to tens of milliamperes. The power supply capacity of the battery in the fluid flow meter and the DC power supply in the detection system can differ by 1 to 2 orders of magnitude. For fluid flow meters that rely on energy consumption conversion to achieve measurement and metering, such as ultrasonic water meters, even if the DC power supply simulates the minimum voltage of the battery, the power supply capacity of the DC power supply at this time is far greater than the power supply capacity of the battery's maximum operating voltage, resulting in the test being unable to simulate the actual effect of the battery power supply, resulting in the test results not being able to reflect the actual working conditions of the built-in battery power supply of the fluid flow meter, and even resulting in errors in the measurement results and conclusions. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a power supply simulation device, a detection system and a detection method to simulate the actual power supply condition of the object under test as much as possible, especially the actual power supply condition of the object under test with built-in battery power supply, at least to solve the problem that even if the existing DC power supply simulates the minimum voltage of the battery power supply, the power supply capacity of the DC power supply at this time is far greater than the power supply capacity of the maximum working voltage of the battery, resulting in the test results not being able to reflect the actual working condition of the built-in battery power supply of the fluid flow meter, and even causing errors in the measurement results and conclusions.

[0004] In a first aspect, an embodiment of the present application provides a power supply simulation device, the power supply simulation device comprising: a power supply simulation module, a first control switch, a voltage detection module, a first connection contact, and a second connection contact;

[0005] The first end of the power supply simulation module is electrically connected to the first end of the first control switch. The second end of the first control switch is electrically connected to the first connection contact. The second connection contact is electrically connected to the second end of the power supply simulation module. The first end of the power supply simulation module is electrically connected to the voltage detection module;

[0006] Wherein, the first connection contact and the second connection contact are used to connect a target power receiving device. The power supply simulation module includes a connected DC power supply and a parameter simulator. The parameter simulator is used to cooperate with the DC power supply to simulate various parameters of a target power supply. The parameters of the target power supply include at least one of an equivalent internal resistance and an equivalent capacitance. The negative terminal of the DC power supply is electrically connected to the second connection contact.

[0007] Optionally, the parameter simulator includes a variable resistor;

[0008] The first end of the variable resistor is electrically connected to the first end of the first control switch and the voltage detection module respectively. The second end of the variable resistor is electrically connected to the positive terminal of the DC power supply.

[0009] Optionally, the parameter simulator further includes a variable capacitor;

[0010] The first end of the variable capacitor is electrically connected to the first end of the power supply simulation module and the first end of the first control switch respectively. The second end of the variable capacitor is electrically connected to the negative terminal of the DC power supply and the second connection contact respectively.

[0011] Optionally, the power supply simulation device further includes a second control switch and a first current detection module;

[0012] The first end of the second control switch is electrically connected to the first end of the first control switch. The first end of the first current detection module is electrically connected to the second end of the second control switch and the second connection contact respectively. The second end of the first current detection module is electrically connected to the negative terminal of the DC power supply.

[0013] Optionally, the parameter simulator includes a variable capacitor;

[0014] The first end of the variable capacitor is electrically connected to the positive terminal of the DC power supply and the first end of the first control switch respectively. The second end of the variable capacitor is electrically connected to the negative terminal of the DC power supply and the second connection contact respectively.

[0015] Optionally, the positive terminal of the DC power supply is electrically connected to the voltage detection module.

[0016] Optionally, the power supply simulation device further includes an equivalent load and a third control switch;

[0017] The first end of the third control switch is electrically connected to the first end of the first control switch. The second end of the third control switch is electrically connected to the first end of the equivalent load. The second end of the equivalent load is electrically connected to the negative terminal of the DC power supply and the second connection contact.

[0018] Wherein, the load value of the equivalent load is adjustable, and the equivalent load is used to simulate the rated value of the equivalent load parameters of the target power receiving device.

[0019] Optionally, the power supply simulation device further includes a signal generation module.

[0020] The first end of the first control switch and the first end of the third control switch are electrically connected to the first end of the power supply simulation module through a wire. The signal generation module is coupled to the wire, and the signal generation module is used to generate and emit a target signal so that the target signal is coupled to the wire.

[0021] Optionally, the signal generation module includes a target signal generation unit and a signal coupling unit.

[0022] The target signal generation unit is electrically connected to the signal coupling unit, and the signal coupling unit is coupled to the wire.

[0023] The target signal generation unit is used to generate and emit a target signal, and the signal coupling unit is used to couple the target signal to the wire.

[0024] Optionally, the second end of the equivalent load is electrically connected to the voltage detection module.

[0025] Optionally, the first end of the first control switch is electrically connected to the voltage detection module.

[0026] Optionally, the power supply simulation device further includes a second current detection module.

[0027] The first end of the second current detection module is electrically connected to the second end of the equivalent load, and the second end of the second current detection module is electrically connected to the negative terminal of the DC power supply.

[0028] Optionally, the power supply simulation device further includes a third current detection module.

[0029] The first end of the third current detection module is respectively electrically connected to the second end of the equivalent load and the second connection contact, and the second end of the third current detection module is electrically connected to the negative terminal of the DC power supply.

[0030] Optionally, the power supply simulation device further includes a controller.

[0031] The DC power supply, the parameter simulator, the voltage detection module, the first control switch, the third control switch, and the equivalent load are all electrically connected to the controller. The controller is configured to control the configuration of the DC power supply and the parameter simulator to simulate various parameters and their values of the target power supply, and is also configured to control the first control switch and the third control switch to be turned on or off, and is further configured to adjust the load parameter value of the equivalent load, and is also configured to obtain the measurement value of the voltage detection module.

[0032] Optionally, the power supply simulation device further includes a display module;

[0033] The display module is electrically connected to the controller, and the display module is configured to display various information transmitted by the controller.

[0034] Optionally, the power supply simulation device further includes an input module;

[0035] The input module is electrically connected to the controller, and the input module is configured to transmit instructions and / or various parameter values to the controller.

[0036] Optionally, the power supply simulation device further includes a communication module;

[0037] The communication module is electrically connected to the controller, and the communication module is configured to communicate with a host computer, so that the host computer transmits instructions and / or various parameter values to the controller through the communication module.

[0038] Optionally, the power supply simulation device has a first mode and a second mode;

[0039] When the power supply simulation device is in the first mode, the first control switch is turned on and the third control switch is turned off;

[0040] When the power supply simulation device is in the second mode, the first control switch is turned off and the third control switch is turned on.

[0041] Optionally, the first control switch and the third control switch are at least one of a MOS transistor and a relay switch.

[0042] In a second aspect, an embodiment of the present application provides a detection system, and the detection system includes the power supply simulation device according to any one of the first aspects above.

[0043] Optionally, the detection system further includes: a control component, an excitation generation component, a measurement fixture component, a fluid supply component, and a measurement component;

[0044] The fluid supply component is connected to the measurement fixture component. The measurement fixture component includes one or more series meter modules for serially connecting and clamping a fluid flow meter. The fluid supply component is used to supply fluid to the fluid flow meter, and the measurement component is used to receive and measure the fluid flowing out of the fluid flow meter, so as to measure and compare the fluid flow meter;

[0045] The excitation generation component is connected to the control component, and the excitation generation component is used to output an excitation signal to the fluid flow meter. The excitation signal includes at least one of a power supply with adjustable characteristics and ultrasonic waves with adjustable characteristics;

[0046] Wherein, the power supply simulation device is electrically connected to the fluid flow meter clamped and fixed by the series meter module.

[0047] In a third aspect, an embodiment of the present application provides a detection method, which is applied to the power supply simulation device described in any one of the first aspects above. The detection method includes:

[0048] Connect the positive power supply contact and the negative power supply contact of the power supply input contact of the target power receiving device to the first connection contact and the second connection contact respectively, and control the first control switch to conduct;

[0049] Configure the parameter values of the various parameters of the parameter simulator to simulate the rated values of the various parameters of the target power supply, obtain the measured value of the voltage detection module, and adjust the output voltage of the DC power supply according to the measured value of the voltage detection module until the measured value of the voltage detection module meets the preset requirements.

[0050] In a fourth aspect, an embodiment of the present application provides a detection method, which is applied to the power supply simulation device described in any one of the first aspects above. The detection method includes:

[0051] Configure the parameter values of the various parameters of the parameter simulator to simulate the rated values of the various parameters of the target power supply;

[0052] Obtain the measured value of the voltage detection module. If the measured value of the voltage detection module meets the requirements, control the first control switch to conduct, and connect the positive power supply contact and the negative power supply contact of the power supply input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

[0053] Optionally, the power supply simulation device includes a third control switch and an equivalent load; obtaining the measurement value of the voltage detection module, if the measurement value of the voltage detection module meets the requirements, then controlling the first control switch to conduct, and connecting the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively, includes:

[0054] Obtaining the rated equivalent load value of the target power receiving device under the test target voltage, controlling the first control switch to disconnect, and controlling the third control switch to conduct, and adjusting the equivalent load value of the equivalent load according to the rated equivalent load value of the target power receiving device until the equivalent load value of the equivalent load is equal to the rated equivalent load value of the target power receiving device;

[0055] Obtaining the detection value of the voltage detection module, and determining whether the detection value meets the requirements, and when the detection value meets the requirements, controlling the first control switch to conduct, and controlling the third control switch to disconnect, and connecting the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

[0056] In the embodiment of the present application, since the first end of the power supply simulation module is electrically connected to the first end of the first control switch, the second end of the first control switch is electrically connected to the first connection contact, and the second connection contact is electrically connected to the second end of the power supply simulation module. Therefore, after the first connection contact and the second connection contact are electrically connected to the target power receiving device, once the first control switch is turned on, the current flowing out of the power supply simulation module can flow to the target power receiving device, and the current flows from the target power receiving device to the power supply simulation module, so that the target power receiving device will be supplied with voltage. Since the power supply simulation module includes a connected DC power supply and a parameter simulator, the current flows out of the positive terminal of the DC power supply, and this current can flow to the first control switch and then to the target power receiving device. Moreover, the parameter simulator can simulate various parameters of the target power supply, so that the voltage and / or current provided to the target power receiving device is close to the voltage and / or current provided by the battery of the target power receiving device itself. In addition, the first end of the power supply simulation module is electrically connected to the voltage detection module, so that the voltage detection module can detect the voltage at the first end of the power supply simulation module. Since the first end of the power supply simulation module is electrically connected to the first end of the first control switch, the voltage at the first end of the power supply simulation module is equal to the voltage at the first end of the first control switch. The voltage value detected by the voltage detection module is the voltage value loaded on the target power receiving device, so that the voltage value loaded on the target power receiving device can be determined, ensuring that the voltage loaded on the target power receiving device is an appropriate voltage. That is to say, in the embodiment of the present application, by electrically connecting the first end of the power supply simulation module to the first end of the first control switch, the second end of the first control switch to the first connection contact, and the second connection contact to the second end of the power supply simulation module. Thus, when the target power receiving device is connected to the first connection contact and the second connection contact, the parameter simulator can equivalently simulate various parameters of the battery in the target power receiving device, that is, the parameter simulator simulates various parameters of the target power supply, so that the voltage and / or current loaded on the target power receiving device is close to the voltage and / or current of the battery in the target power receiving device. As a result, the subsequent test results of the target power receiving device by the detection system are more accurate, and the test results of the target power receiving device can more truly reflect the working conditions of the built-in battery of the target power receiving device. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 FIG. 1 is a schematic diagram showing one of the parameter simulators including adjustable resistors in a power supply simulation device provided by an embodiment of the present application;

[0058] Figure 2 FIG. 2 is a schematic diagram showing another of the parameter simulators including adjustable resistors in a power supply simulation device provided by an embodiment of the present application;

[0059] Figure 3 FIG. 3 is a schematic diagram showing the parameter simulator including adjustable capacitors in a power supply simulation device provided by an embodiment of the present application;

[0060] Figure 4 One of the schematic diagrams showing that the parameter simulator in a power supply simulation device provided by an embodiment of the present application includes a variable resistor and a variable capacitor;

[0061] Figure 5 Another schematic diagram showing that the parameter simulator in a power supply simulation device provided by an embodiment of the present application includes a variable resistor and a variable capacitor;

[0062] Figure 6 Another schematic diagram showing that the parameter simulator in a power supply simulation device provided by an embodiment of the present application includes a variable resistor and a variable capacitor;

[0063] Figure 7 Another schematic diagram showing that the parameter simulator in a power supply simulation device provided by an embodiment of the present application includes a variable resistor and a variable capacitor;

[0064] Figure 8 Another schematic diagram showing that the parameter simulator in a power supply simulation device provided by an embodiment of the present application includes a variable resistor and a variable capacitor;

[0065] Figure 9 Schematic diagram of a detection system provided by an embodiment of the present application;

[0066] Figure 10 Schematic diagram of another detection system provided by an embodiment of the present application;

[0067] Figure 11 One of the flowcharts of another detection method provided by an embodiment of the present application;

[0068] Figure 12 Another flowchart of another detection method provided by an embodiment of the present application;

[0069] Figure 13 Another flowchart of another detection method provided by an embodiment of the present application.

[0070] Reference numerals:

[0071] 1000: Power simulation device; 10: Power simulation module; 11: DC power supply; 12: Parameter simulator; 21: First control switch; 22: Second control switch; 23: Third control switch; 30: Voltage detection module; 40: First connection contact; 50: Second connection contact; 60: Equivalent load; 80: Signal generation module; 81: Target signal generation unit; 82: Signal coupling unit; 91: First current detection module; 92: Second current detection module; 93: Third current detection module; 110: Controller; 120: Display module; 130: Input module; 140: Communication module; 150: Wireless communication module; 200: Control component; 300: Excitation generation component; 400: Measurement fixture component; 410: Ammeter module; 500: Fluid supply component; 600: Measurement component. Detailed implementation manners

[0072] The terms "first" and "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0073] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0074] In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0075] Such as Figures 1 to 6As shown in the figure, the power supply simulation device 1000 includes: a power supply simulation module 10, a first control switch 21, a voltage detection module 30, a first connection contact 40, and a second connection contact 50; the first end of the power supply simulation module 10 is electrically connected to the first end of the first control switch 21, the second end of the first control switch 21 is electrically connected to the first connection contact 40, the second connection contact 50 is electrically connected to the second end of the power supply simulation module 20, and the first end of the power supply simulation module 10 is electrically connected to the voltage detection module 30; wherein, the first connection contact 40 and the second connection contact 50 are used to connect the target power receiving device, the power supply simulation module 10 includes a connected DC power supply 11 and a parameter simulator 12, the parameter simulator 12 is used to cooperate with the DC power supply 11 to simulate various parameters of the target power supply, the parameters of the target power supply include at least one of an equivalent internal resistance and an equivalent capacitance, and the negative terminal of the DC power supply 11 is electrically connected to the second connection contact 50.

[0076] In the embodiment of the present application, since the first end of the power supply simulation module 10 is electrically connected to the first end of the first control switch 21, the second end of the first control switch 21 is electrically connected to the first connection contact 40, and the second connection contact 50 is electrically connected to the second end of the power supply simulation module 20. Therefore, after the first connection contact 40 and the second connection contact 50 are electrically connected to the target power receiving device, once the first control switch 21 is turned on, the current flowing out of the power supply simulation module 10 can flow to the target power receiving device, and the current flows from the target power receiving device to the power supply simulation module 10, so that the target power receiving device will be supplied with voltage. Since the power supply simulation module 10 includes a connected DC power supply 11 and a parameter simulator 12, the current flows out from the positive terminal of the DC power supply 11, and this current can flow to the first control switch 21 and then to the target power receiving device. Moreover, the parameter simulator can simulate various parameters of the target power supply, so that the voltage and / or current provided to the target power receiving device is close to the voltage and / or current provided by the power supply (such as a battery) used by the target power receiving device during its daily operation. In addition, the first end of the power supply simulation module 10 is electrically connected to the voltage detection module 30, so that the voltage detection module 30 can detect the voltage at the first end of the power supply simulation module 10. Since the first end of the power supply simulation module 10 is electrically connected to the first end of the first control switch 21, the voltage at the first end of the power supply simulation module 10 is equal to the voltage at the first end of the first control switch 21. The voltage value detected by the voltage detection module 30 is the voltage value loaded on the target power receiving device, so that the voltage value loaded on the target power receiving device can be determined, ensuring that the voltage loaded on the target power receiving device is the appropriate target voltage. That is to say, in the embodiment of the present application, by electrically connecting the first end of the power supply simulation module 10 to the first end of the first control switch 21, the second end of the first control switch 21 to the first connection contact 40, and the second connection contact 50 to the second end of the power supply simulation module 20. Thus, when the target power receiving device is connected to the first connection contact 40 and the second connection contact 50, the parameter simulator 12 can equivalently simulate various parameters of the battery in the target power receiving device, that is, the parameter simulator 12 simulates various parameters of the target power supply, making the voltage and / or current loaded on the target power receiving device close to the voltage and / or current provided by the power supply (such as a battery) used by the target power receiving device during its daily operation. As a result, the test result of the target power receiving device by the subsequent detection system is more accurate and reliable, and the test result of the target power receiving device more truly reflects the working condition of the power supply (such as a battery) used by the target power receiving device during its daily operation.

[0077] It should be noted that in the embodiments of the present application, the target power receiving device may be a fluid flow meter, and the target power source may be a battery in the fluid flow meter. Specifically, when testing the target power receiving device, the battery in the target power receiving device is taken out or disconnected, and then the positive and negative poles of the power input of the target power receiving device are respectively connected to the first connection contact 40 and the second connection contact 50, and the target power receiving device is powered by the DC power supply 11. The parameter simulator 12 can simulate various parameters of the battery in the target power receiving device, so that the voltage and / or current applied to the target power receiving device is close to the voltage and / or current provided by the battery in the target power receiving device, ensuring that the test result of the target power receiving device is relatively accurate and reliable. For example, the parameter simulator 12 simulates the equivalent internal resistance of the battery in the target power receiving device. For another example, the parameter simulator 12 simulates the equivalent capacitance of the battery in the target power receiving device.

[0078] In addition, in some embodiments, as Figure 1 or Figure 2 shown, the parameter simulator 12 includes a variable resistor; the first end of the variable resistor is electrically connected to the first end of the first control switch 21 and the voltage detection module 30 respectively, and the second end of the variable resistor is electrically connected to the positive extreme of the DC power supply 11. With such a setting, it is equivalent to simulating the equivalent resistance of the target power source through the parameter simulator 12, and by adjusting the resistance value of the variable resistor, the resistance value of the variable resistor is made equal to the equivalent resistance of the target power source.

[0079] In addition, in some embodiments, as Figure 5 or Figure 7 shown, when the parameter simulator 12 includes a variable resistor, the parameter simulator 12 may further include a variable capacitor. The first end of the variable capacitor is electrically connected to the first end of the variable resistor and the first end of the first control switch 21 respectively, and the second end of the variable capacitor is electrically connected to the negative extreme of the DC power supply 11 and the second connection contact 50 respectively. It is equivalent to that the parameter simulator 12 can simulate the equivalent resistance and equivalent capacitance of the target power source simultaneously.

[0080] In addition, in some embodiments, as Figure 4As shown, the power supply simulation device 1000 may further include a second control switch 22 and a first current detection module 91. The first end of the second control switch 22 is electrically connected to the first end of the first control switch 21. The first end of the first current detection module 91 is electrically connected to the second end of the second control switch 22 and the second connection contact 50 respectively. The second end of the first current detection module 91 is electrically connected to the negative terminal of the DC power supply 11. Through such a setting, when adjusting the adjustable resistor, the first control switch 21 can be disconnected and the second control switch 22 can be turned on, so that the current flowing through the adjustable resistor can be determined by the first current detection module 91, and then whether the resistance value of the adjustable resistor is adjusted to the required resistance value can be determined, thereby calibrating the adjustable resistor. And when the first control switch 21 is turned on, the second control switch 22 is turned off, and the target power receiving device is respectively connected to the first connection contact 40 and the second connection contact 50, the first current detection module 91 can determine the current flowing through the target power receiving device, which is convenient for determining the power of the target power receiving device.

[0081] In addition, in some embodiments, as Figure 3 shown, the parameter simulator 12 includes an adjustable capacitor. The first end of the adjustable capacitor is electrically connected to the positive terminal of the DC power supply 11 and the first end of the first control switch 21 respectively. The second end of the adjustable capacitor is electrically connected to the negative terminal of the DC power supply 11 and the second connection contact 50 respectively. Through such a setting, it is equivalent to simulating the equivalent capacitance of the target power supply through the parameter simulator 12, and by adjusting the capacitance value of the adjustable capacitor, the capacitance value of the adjustable capacitor is made equal to the equivalent capacitance of the target power supply. Among them, the target power supply has capacitance or capacitance effect. By simulating the equivalent capacitance of the target power supply through the parameter simulator 12, the simulation power supply 10 can be made as close as possible to the target power supply, so that the voltage and / or current provided to the target power receiving device is as close as possible to the voltage and / or current provided by the target power supply to the target power receiving device.

[0082] Of course, in the embodiments of the present application, as Figure 6 or Figure 8 shown, the parameter simulator 12 may further include an adjustable resistor and an adjustable capacitor. At this time, the positive terminal of the DC power supply 11 is electrically connected to the second end of the adjustable resistor and the first end of the adjustable capacitor respectively. The first end of the adjustable resistor is electrically connected to the first end of the first control switch 21 and the voltage detection module 30 respectively. The second end of the adjustable capacitor is electrically connected to the negative terminal of the DC power supply 11. It is equivalent to that the parameter simulator 12 can simulate the equivalent resistance and equivalent capacitance of the target power supply at the same time.

[0083] In addition, when the parameter simulator 12 is an adjustable resistor, at this time, the parameter simulator 12 can play a role in current limiting, that is, limiting the current flowing to the first control switch 21 to avoid excessive current.

[0084] In addition, in some embodiments, the positive terminal of the DC power supply 11 is electrically connected to the voltage detection module 30.

[0085] In addition, in some embodiments, the power supply simulation device 1000 may further include an equivalent load 60 and a third control switch 23; a first end of the third control switch 23 is electrically connected to a first end of the first control switch 21, a second end of the third control switch 23 is electrically connected to a first end of the equivalent load 60, and a second end of the equivalent load 60 is electrically connected to the negative terminal of the DC power supply 11 and the second connection contact 50; wherein, the load value of the equivalent load 60 is adjustable, and the equivalent load 60 can be used to simulate the rated value of the equivalent load parameter of the target power receiving device.

[0086] Since the first end of the third control switch 23 is electrically connected to the first end of the first control switch 21, the second end of the third control switch 23 is electrically connected to the first end of the equivalent load 60, and the second end of the equivalent load 60 is electrically connected to the negative terminal of the DC power supply 11 and the second connection contact 50, therefore, it is equivalent to the third control switch 23 being connected in parallel with the first control switch 21, and by setting the equivalent load 60, the rated value of the equivalent load parameter of the target power receiving device can be simulated through the equivalent load 60. Thus, before testing the target power receiving device, that is, when the target power receiving device is not connected to the first connection contact 40 and the second connection contact 50, the first control switch 21 can be disconnected and the third control switch 23 can be turned on. At this time, the current flowing out of the DC power supply 11 can flow to the equivalent load 60, and the equivalent load 60 simulates the rated value of the target power receiving device. Then, it can be determined whether the equivalent load 60 is simulated appropriately according to the result detected by the voltage detection module 30, and the load value of the equivalent load 60 can be adjusted to simulate the actual scenario of the target power receiving device as realistically as possible, so that the test result is more accurate and reliable when the target power receiving device is tested subsequently.

[0087] Among them, disconnecting the first control switch 21 and turning on the third control switch 23 is also equivalent to calibrating the voltage output by the power supply simulation device 1000.

[0088] In addition, in the embodiments of the present application, the power supply simulation device 1000 has a first mode and a second mode; when the power supply simulation device 1000 is in the first mode, the first control switch 21 is turned on and the third control switch 23 is turned off; when the power supply simulation device 1000 is in the second mode, the first control switch 21 is turned off and the third control switch 23 is turned on. Through such a setting, when it is necessary to test the target power receiving device, the power supply simulation device 1000 can be first set to the second mode, that is, the first control switch 21 is turned off and the third control switch 23 is turned on. By using the equivalent load 60 to simulate the rated value of the equivalent load parameters of the target power receiving device, it is equivalent to calibrating the voltage output by the power supply simulation device 1000. Then, the power supply simulation device 1000 is switched from the second mode to the first mode, that is, the first control switch 21 is turned on and the third control switch 23 is turned off, so as to test the target power receiving device. After self-calibration, the test result of the target power receiving device is more accurate and reliable.

[0089] It should be noted that when it is necessary to test the target power receiving device, the power supply simulation device 1000 can be first set to the second mode. At this time, by adjusting the equivalent load 60, the equivalent load 60 is made to simulate the rated value of the equivalent load parameters of the target power receiving device, and the parameter simulator 12 can be adjusted so that the parameter simulator 12 simulates various parameters of the target power supply, so that the voltage at the first end of the first control switch 21 is equal to the voltage that needs to be loaded on the target power receiving device. That is, by setting the power supply simulation device 1000 to the second mode, the voltage at the first end of the first control switch 21 can be adjusted so that this voltage is the target voltage value that needs to be loaded on the target power receiving device. Then, the power supply simulation device 1000 is switched to the first mode, and the positive and negative terminals of the power input of the target power receiving device are respectively connected to the first connection contact 40 and the second connection contact 50 to ensure that the voltage loaded on the target power receiving device is the required target voltage value, ensuring that the test of the target power receiving device is relatively accurate and reliable.

[0090] In addition, in the embodiments of the present application, the first control switch 21 and the third control switch 23 can be at least one of a MOS transistor and a relay switch. The cost of the MOS transistor and the relay switch is relatively low. Therefore, by setting the first control switch 21 and the third control switch 23 as at least one of a MOS transistor and a relay switch, the cost of the power supply simulation device 1000 can be effectively reduced.

[0091] Among them, the first control switch 21 and the third control switch 23 can be only MOS transistors. Of course, the first control switch 21 and the third control switch 23 can also be only relay switches. The first control switch 21 and the third control switch 23 can also be a combination of a MOS transistor and a relay switch, that is, the first control switch 21 is a MOS transistor and the third control switch 23 is a relay switch, or the first control switch 21 is a relay switch and the third control switch 23 is a MOS transistor.

[0092] In addition, the second control switch 22 can be a MOS switch or a relay switch.

[0093] In addition, in some embodiments, the power supply simulation device 1000 may further include a signal generation module 80; the first ends of the first control switch 21 and the third control switch 23 are electrically connected to the first end of the power supply simulation module 10 through wires, the signal generation module 80 is coupled to the wires, and the signal generation module 80 is used to generate and send a target signal so that the target signal is coupled to the wires.

[0094] Since the first ends of the first control switch 21 and the third control switch 23 are electrically connected to the first end of the power supply simulation module 10 through wires and the signal generation module 80 is coupled to the wires, when the signal generation module 80 operates, the signal generation module 80 can generate and send a target signal, and the target signal is coupled into the wires. Furthermore, when the first control switch 21 is turned on, the third control switch 23 is turned off, and the positive and negative terminals of the power input of the target power receiving device are respectively connected to the first connection contact 40 and the second connection contact 50, the target signal can be transmitted to the target power receiving device through the first control switch 21, and the target signal can simulate the power noise interference received by the target power receiving device in actual applications, so that when testing the target power receiving device, the test results are more accurate and reliable, and the test process is more in line with the actual use process of the target power receiving device. In addition, when the first control switch 21 is turned off and the third control switch 23 is turned on, at this time, the target signal can be transmitted to the equivalent load 60. When the equivalent load 60 simulates the rated value of the equivalent load parameters of the target power receiving device, the equivalent load parameter value of the target power receiving device simulated by the equivalent load 60 can be closer to the actual rated value of the target power receiving device in the actual use scenario.

[0095] In addition, in some embodiments, the signal generation module 80 may include a signal generation unit 81 and a signal coupling unit 82; the signal generation unit 81 is electrically connected to the signal coupling unit 82, and the signal coupling unit 82 is coupled to the wires; the signal generation unit 81 is used to generate and send a target signal, and the signal coupling unit 82 is used to couple the target signal to the wires.

[0096] Since the signal generating unit 81 is electrically connected to the signal coupling unit 82, and the signal coupling unit 82 is coupled to the wire, once the signal generating unit 81 operates, the signal generating unit 81 can emit a target signal, the target signal can be transmitted to the signal coupling unit 82, the signal coupling unit 82 can couple noise to the wire, and the wire can transmit the target signal to the first control switch 21 or the third control switch 23. Specifically, when the first control switch 21 is off and the third control switch 23 is on, the target signal can be transmitted to the equivalent load 60. When the first control switch 21 is on and the third control switch 23 is off, the target signal can be transmitted to the target power receiving device. That is, by providing the signal generating unit 81 and the target signal coupling unit, it is convenient to couple the target signal to the wire and then transmit it to the equivalent load 60 or the target power receiving device.

[0097] It should be noted that the signal coupling unit 82 can be an inductive coupling circuit, a capacitive coupling circuit, or a combination of an inductive coupling circuit and a capacitive coupling circuit. Of course, the signal coupling unit 82 can also be other components capable of coupling signals. The specific type of the signal coupling unit 82 is not limited in the embodiments of the present application.

[0098] In addition, in some embodiments, the positive terminal of the DC power supply 11 is electrically connected to the voltage detection module 30. With this arrangement, the voltage detection module 30 can detect the voltage at the positive terminal of the DC power supply 11. In addition, when the parameter simulator 12 includes a variable resistor and the voltage detection module 30 is electrically connected to the first end of the variable resistor, the voltage detection module 30 can detect the voltage at the first end of the variable resistor and the voltage at the second end of the variable resistor. After determining the internal resistance of the variable resistor, the current value flowing through the parameter simulator 12 can be determined. That is, by electrically connecting the second end of the parameter simulator 12 to the voltage detection module 30, it is convenient to determine the current value flowing through the parameter simulator 12.

[0099] It should be noted that when determining the current value flowing through the parameter simulator 12, the voltage difference can be obtained by subtracting the voltage value at the second end of the parameter simulator 12 from the voltage value at the first end of the parameter simulator 12. This voltage difference is the voltage drop value across the parameter simulator 12. Then, dividing the voltage drop value across the parameter simulator 12 by the internal resistance of the parameter simulator 12 gives the current value flowing through the parameter simulator 12.

[0100] In addition, in some embodiments, the second end of the equivalent load 60 is electrically connected to the voltage detection module 30. With this arrangement, the voltage detection module 30 can detect the voltage at the second end of the equivalent load 60, and it is relatively convenient to determine the voltage drop value across the equivalent load 60, which is convenient for subsequent determination of parameters such as the internal resistance of the equivalent load 60.

[0101] The voltage at the second end of the equivalent load 60 can be subtracted from the voltage at the first end of the equivalent load 60, so as to obtain the voltage drop value of the voltage across the equivalent load 60. For example, after determining the voltage drop value of the voltage of the equivalent load 60, once the current value of the current flowing through the equivalent load 60 is determined, the current equivalent resistance value of the equivalent load 60 can be determined.

[0102] In addition, in some embodiments, the first end of the first control switch 21 is electrically connected to the voltage detection module 30. With such an arrangement, the voltage detection module 30 can detect the voltage at the first end of the first control switch 21. Among them, if the signal generation module 80 operates, at this time, the target signal can be transmitted to the first end of the first control switch 21, and the voltage detection module 30 is equivalent to detecting the voltage with the target signal, so as to facilitate the analysis and determination of whether the voltage at the first end of the first control switch 21 meets the target requirements after the target signal is applied.

[0103] It should be noted that in the embodiments of the present application, the voltage detection module 30 can be a voltage detection module 30 for detecting the DC voltage at a certain transient moment, and the voltage detection module 30 can also be a voltage detection module 30 for detecting the DC voltages at multiple time points within a certain time period, so as to further analyze the detected signal.

[0104] In addition, in some embodiments, as Figure 1 shown, the power supply simulation device 1000 may further include a second current detection module 92; the first end of the second current detection module 92 is electrically connected to the second end of the equivalent load 60, and the second end of the second current detection module 92 is electrically connected to the negative terminal of the DC power supply 11. With such an arrangement, the second current detection module 92 can detect the current value flowing through the equivalent load 60 in real time, that is, when the third control switch 23 is turned on and the first control switch 21 is turned off, the equivalent load 60 simulates the rated value of the equivalent load parameters of the target power receiving device, and the second current detection module 92 detects the current value flowing through the equivalent load 60 in real time. Thus, in combination with the voltage value detected by the voltage detection module 30, the equivalent resistance value of the equivalent load 60 can be determined more accurately, so as to determine whether the rated internal resistance of the equivalent load 60 simulating the target power receiving device is appropriate.

[0105] It should be noted that in the embodiments of the present application, the second current detection module 92 can be an ammeter.

[0106] In addition, in some embodiments, as Figure 2As shown, the power supply simulation device 1000 may further include a third current detection module 93; the first end of the third current detection module 93 is electrically connected to the second end of the equivalent load 60 and the second connection contact 50 respectively, and the second end of the third current detection module 93 is electrically connected to the negative terminal of the DC power supply 11. Through such a setting, when the third control switch 23 is turned on and the first control switch 21 is turned off, the third current detection module 93 can detect the current value flowing through the equivalent load 60. When the third control switch 23 module is turned off and the first control switch 21 module is turned on, the third current detection module 93 can detect the current value flowing through the target power receiving device. Thus, by providing the third current detection module 93, the current of the equivalent load 60 and the current of the target power receiving device can be detected, and it is possible to avoid using current detection components separately to detect the current flowing through the target power receiving device and the current flowing through the equivalent load 60, which is beneficial to cost reduction.

[0107] It should be noted that, in the embodiments of the present application, the third current detection module 93 may be an ammeter.

[0108] In addition, in some embodiments, the power supply simulation device 1000 may further include a controller 110; the DC power supply 11, the parameter simulator 12, the voltage detection module 30, the first control switch 21, the third control switch 23, and the equivalent load 60 are all electrically connected to the controller 110. The controller 110 is used to control the configuration of the DC power supply 11 and the parameter simulator 12 to simulate various parameters and their parameter values of the target power supply, and is used to control the first control switch 21 and the third control switch 23 to be turned on or off, and is also used to adjust the load parameter value of the equivalent load 60, and is further used to obtain the measurement value of the voltage detection module 30. By providing the controller 110, the controller 110 can control each component connected thereto, so that the automation degree of the power supply simulation device 1000 can be relatively high.

[0109] It should be noted that the controller 110 may be a circuit board with control functions. Of course, the controller 110 may also be a chip with control functions. The specific type of the controller 110 is not limited in the embodiments of the present application.

[0110] In addition, in some embodiments, the power supply simulation device 1000 may further include a display module 120; the display module 120 is electrically connected to the controller 110, and the display module 120 is used to display various information transmitted by the controller 110. Through such a setting, the display module 120 can display various information transmitted by the controller 110 in real time, and the display module 120 displays the various information, which helps the staff to know various information during the test through the display module 120 when testing the target power receiving device.

[0111] It should be noted that the display module 120 may be a display screen, and the display screen may be an LCD display screen. Of course, the display screen may also be an OLED display screen. The specific type of the display screen is not limited in the embodiments of the present application.

[0112] In addition, in some embodiments, the power supply simulation device 1000 may further include an input module 130; the input module 130 is electrically connected to the controller 110, and the input module 130 is used to transmit instructions and / or various parameter values to the controller 110. Through such a setting, the staff can input instructions and / or various parameter values through the input module 130, so that the controller 110 can control each component connected thereto. That is, by setting the input module 130, it is convenient for the staff to set various parameter values to test the target power receiving device.

[0113] It should be noted that in the embodiments of the present application, the input module 130 may be a keyboard. Of course, the input module 130 may also be other components with input functions. For example, the input module 130 is a touch screen, and the staff inputs instructions and / or various parameter values to the controller 110 by performing click or touch operations on the touch screen.

[0114] In addition, in some embodiments, the power supply simulation device 1000 may further include a communication module 140; the communication module 140 is electrically connected to the controller 110, and the communication module 140 is used to communicate with a host computer, so that the host computer transmits instructions and / or various parameter values to the controller 110 through the communication module 140. Through such a setting, it is convenient for the host computer to be electrically connected to the controller 110, that is, communication can be performed between the host computer and the controller 110 through the communication module 140. Thus, the host computer can transmit instructions and / or various parameter values to the controller 110, so that the controller 110 controls each component connected thereto.

[0115] In addition, in the embodiments of the present application, the power supply simulation device 1000 may further include a wireless communication module 150. The wireless communication module 150 is electrically connected to the controller 110, and the wireless communication module 150 is used to connect to an electronic device. Through such a setting, when it is necessary to test the target power receiving device, the staff can communicate the electronic device with the wireless communication module 150. The staff sets test parameters on the electronic device, and transmits the test parameters to the controller 110 through the wireless communication module 150, so that the controller 110 controls each component connected thereto.

[0116] It should be noted that the wireless communication module 150 may be a Bluetooth module. The electronic device includes but is not limited to mobile phones, tablet computers, laptop computers, etc.

[0117] In addition, in the embodiments of the present application, the voltage detection module 30 includes a single measurement input terminal, and the power supply simulation device 1000 includes a multiplexer. The multiplexer is electrically connected to the test input terminal. The first end of the parameter simulator 12, the first end of the first control switch 21, and the second end of the parameter simulator 12 are all electrically connected to the multiplexer. The multiplexer is switchable, so that the voltage detection module 30 can perform a polling detection on the first end of the parameter simulator 12, the first end of the first control switch 21, and the second end of the parameter simulator 12.

[0118] Wherein, when the second end of the equivalent load 60 is electrically connected to the voltage detection module 30, the second end of the equivalent load 60 is also electrically connected to the multiplexer.

[0119] It should be noted that the voltage detection module 30 can be a voltmeter. When the voltage detection module 30 includes a single measurement input terminal, it is equivalent to the voltmeter being connected to a single output terminal.

[0120] In addition, in some embodiments, the voltage detection module 30 includes a first measurement input terminal, a second measurement input terminal, and a third measurement input terminal. The first end of the parameter simulator 12 is electrically connected to the first measurement input terminal, the first end of the first control switch 21 is electrically connected to the second measurement input terminal, and the second end of the parameter simulator 12 is electrically connected to the third measurement input terminal. Among them, the voltage detection module 30 can simultaneously detect the first end of the parameter simulator 12, the first end of the first control switch 21, and the second end of the parameter simulator 12.

[0121] Wherein, when the second end of the equivalent load 60 is electrically connected to the voltage detection module 30, the voltage detection module 30 may further include a fourth measurement input terminal, and the second end of the equivalent load 60 is electrically connected to the fourth measurement input terminal, so that the voltage detection module 30 can simultaneously detect the voltages of the respective components connected thereto.

[0122] It should be noted that the voltage detection module 30 can include multiple voltmeters, and one voltmeter is connected to one measurement input terminal, so that multiple voltmeters are respectively electrically connected to multiple components, so that the voltage detection module 30 can simultaneously detect the voltages of the respective components connected thereto.

[0123] The embodiments of the present application provide a detection system, as Figure 9 or Figure 10 shown. The detection system includes the power supply simulation device 1000 in any one of the above embodiments.

[0124] In addition, in some embodiments, the detection system may further include: a control component 200, an excitation generation component 300, a measurement fixture component 400, a fluid supply component 500, and a measurement component 600; the fluid supply component 500 is connected to the measurement fixture component 400, and the measurement fixture component 400 includes one or more series meter modules 410, and the series meter modules 410 are used to connect in series and clamp and fix fluid flow meters. The fluid supply component 500 is used to supply fluid to the fluid flow meters, and the measurement component 600 is used to receive and measure the fluid flowing out of the fluid flow meters, so as to measure and compare the fluid flow meters; the excitation generation component 300 is connected to the control component 200, and the excitation generation component 300 is used to output an excitation signal to the fluid flow meters; wherein, the power supply simulation device 1000 is electrically connected to the fluid flow meters clamped and fixed by the series meter modules 410.

[0125] It should be noted that the number of the power supply simulation devices 1000 can be set according to actual needs. For example, as Figure 8 shown, when the number of the power supply simulation devices 1000 is one, at this time, multiple fluid flow meters fixed by multiple series meter modules 410 can all be electrically connected to a single power supply simulation device 1000; for another example, as Figure 9 shown, when the number of the power supply simulation devices 1000 is multiple, at this time, one fluid flow meter can be electrically connected to one power supply simulation device 1000.

[0126] The embodiment of the present application provides a detection method, which is applied to the power supply simulation device in any one of the above embodiments. As Figure 11 shown, the detection method includes:

[0127] Step 501: Connect the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively, and control the first control switch to conduct.

[0128] Step 502: Configure the parameter values of the various parameters of the parameter simulator to simulate the rated values of the various parameters of the target power supply, obtain the measured value of the voltage detection module, and adjust the output voltage of the DC power supply according to the measured value of the voltage detection module until the measured value of the voltage detection module meets the preset requirements.

[0129] Among them, the parameter values of each parameter of the parameter simulator can be configured first to simulate the rated values of each parameter of the target power supply. In addition, the voltage detection module can detect the voltage value of the component connected to it in real time, so that the measured value of the voltage detection module can be obtained. If the measured value of the voltage detection module does not meet the preset requirements, it is necessary to adjust the output voltage of the DC power supply, so as to adjust the voltage at the first end of the parameter simulator. And the voltage detection module detects the voltage value at the first end of the parameter simulator in real time. During the adjustment process, once the measured value of the voltage detection module meets the preset requirements, the adjustment can be stopped, so that the target power receiving device is loaded with the target voltage that meets the preset requirements, and then the target power receiving device is tested.

[0130] It should be noted that the rated values of each parameter of the target power supply include at least one of the rated capacitance and the rated resistance.

[0131] An embodiment of the present application provides a detection method, which is applied to the power supply simulation device in any one of the above embodiments, as Figure 12 shown, the detection method includes:

[0132] Step 601: Configure the parameter values of each parameter of the parameter simulator to simulate the rated values of each parameter of the target power supply.

[0133] Step 602: Obtain the measured value of the voltage detection module. If the measured value of the voltage detection module meets the requirements, control the first control switch to conduct, and connect the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

[0134] In addition, in some implementation manners, the voltage detection module can detect the voltage value of the component connected to it in real time, so that the measured value of the voltage detection module can be obtained. If the measured value of the voltage detection module does not meet the requirements, adjust the output voltage of the DC power supply until the measured value of the voltage detection module meets the requirements. At this time, control the first control switch to conduct, and then connect the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively, which is equivalent to loading the target power receiving device with a voltage that meets the requirements.

[0135] In addition, in some implementation manners, the power supply simulation device includes a third control switch and an equivalent load; the implementation manner of step 602 can be: obtaining the rated equivalent load value of the target power receiving device under the target voltage, controlling the first control switch to disconnect, and controlling the third control switch to conduct, and adjusting the equivalent load value of the equivalent load according to the rated equivalent load value of the target power receiving device until the equivalent load value of the equivalent load is equal to the rated equivalent load value of the target power receiving device; obtaining the detection value of the voltage detection module, and determining whether the detection value meets the requirements. When the detection value meets the requirements, controlling the first control switch to conduct, and controlling the third control switch to disconnect, and connecting the power positive contact and the power negative contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

[0136] Among them, once the first control switch is controlled to disconnect and the third control switch is controlled to conduct, the equivalent load value of the equivalent load can be adjusted according to the rated equivalent load value of the target power receiving device under the target voltage, so that the equivalent load value of the equivalent load is close to the rated equivalent load value of the target power receiving device, which is equivalent to making the equivalent load simulate the rated equivalent load value of the target power receiving device. Then, the detection value of the voltage detection module is obtained, and it is determined whether the detection value meets the requirements. If the detection value does not meet the requirements, the output voltage of the DC power supply is adjusted until the detection value meets the requirements. Then, the first control switch is conducted, the third control switch is disconnected, and the power positive contact and the power negative contact of the power input contact of the target power receiving device are respectively connected to the first connection contact and the second connection contact, which is equivalent to applying a target voltage that meets the requirements to the target power receiving device, making the test of the target power receiving device more accurate and reliable.

[0137] In addition, as Figure 13 shown, in the embodiments of the present application, the power supply simulation device includes a third control switch and an equivalent load. When testing the target power receiving device, the following steps can be performed:

[0138] Step 701: Configure the parameter values of the various parameters of the parameter simulator to simulate the rated values of the various parameters of the target power supply.

[0139] Step 702: Obtain the rated equivalent load value of the target power receiving device under the target voltage, control the first control switch to disconnect, and control the third control switch to conduct. According to the rated equivalent load value of the target power receiving device, adjust the equivalent load value of the equivalent load until the equivalent load value of the equivalent load is equal to the rated equivalent load value of the target power receiving device.

[0140] Step 703: Obtain the detection value of the voltage detection module, and determine whether the detection of the voltage detection module meets the requirements;

[0141] Step 704: If the detection value of the voltage detection module meets the requirements, control the first control switch to turn on, control the third control switch to turn off, and connect the positive power contact and the negative power contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

[0142] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0143] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the claims and their equivalents.

Claims

1. A power supply simulation device, characterized in that: The power supply simulation device comprises: a power supply simulation module, a first control switch, a voltage detection module, a first connection contact and a second connection contact; The first end of the power simulation module is electrically connected to the first end of the first control switch, the second end of the first control switch is electrically connected to the first connection contact, the second connection contact is electrically connected to the second end of the power simulation module, and the first end of the power simulation module is electrically connected to the voltage detection module; Among them, the first connection contact and the second connection contact are used to connect to the target power receiving device, the power supply simulation module includes a connected DC power supply and a parameter simulator, the parameter simulator is used to cooperate with the DC power supply to simulate various parameters of the target power supply, the parameters of the target power supply include at least one of equivalent internal resistance and equivalent capacitance, and the negative terminal of the DC power supply is electrically connected to the second connection contact.

2. The power supply simulation device according to claim 1, characterized in that: The parameter simulator includes an adjustable resistor; The first end of the adjustable resistor is electrically connected to the first end of the first control switch and the voltage detection module respectively, and the second end of the adjustable resistor is electrically connected to the positive terminal of the DC power supply.

3. The power supply simulation device according to claim 2, characterized in that: The parameter simulator also includes an adjustable capacitor; The first end of the adjustable capacitor is electrically connected to the first end of the adjustable resistor and the first end of the first control switch respectively, and the second end of the adjustable capacitor is electrically connected to the negative terminal of the DC power supply and the second connection contact respectively.

4. The power supply simulation device according to claim 2, characterized in that: The power supply simulation device also includes a second control switch and a first current detection module; The first end of the second control switch is electrically connected to the first end of the first control switch, the first end of the first current detection module is electrically connected to the second end of the second control switch and the second connection contact respectively, and the second end of the first current detection module is electrically connected to the negative end of the DC power supply.

5. The power simulation device according to claim 1, characterized in that: The parameter simulator includes an adjustable capacitor; The first end of the adjustable capacitor is electrically connected to the positive terminal of the DC power supply and the first end of the first control switch respectively, and the second end of the adjustable capacitor is electrically connected to the negative terminal of the DC power supply and the second connection contact respectively.

6. The power supply simulation device according to claim 1, characterized in that: The positive terminal of the DC power supply is electrically connected to the voltage detection module.

7. The power supply simulation device according to claim 1, characterized in that: The power supply simulation device also includes an equivalent load and a third control switch; The first end of the third control switch is electrically connected to the first end of the first control switch, the second end of the third control switch is electrically connected to the first end of the equivalent load, and the second end of the equivalent load is electrically connected to the negative end of the DC power supply and the second connection contact; The load value of the equivalent load is adjustable, and the equivalent load is used to simulate the rated value of the equivalent load parameter of the target power receiving device.

8. The power supply simulation device according to claim 7, characterized in that: The power supply simulation device also includes a signal generating module; The first end of the first control switch and the first end of the third control switch are electrically connected to the first end of the power simulation module through a wire, and the signal generating module is coupled to the wire. The signal generating module is used to generate and send a target signal so that the target signal is coupled to the wire.

9. The power supply simulation device according to claim 8, characterized in that: The signal generating module comprises a signal generating unit and a signal coupling unit; The signal generating unit is electrically connected to the signal coupling unit, and the signal coupling unit is coupled to the wire; The signal generating unit is used to generate and send out a target signal, and the signal coupling unit is used to couple the signal to the wire.

10. The power supply simulation device according to claim 7, characterized in that: The second end of the equivalent load is electrically connected to the voltage detection module.

11. The power supply simulation device according to claim 8, characterized in that: The first end of the first control switch is electrically connected to the voltage detection module.

12. The power supply simulation device according to any one of claims 7 to 11, characterized in that: The power supply simulation device also includes a second current detection module; The first end of the second current detection module is electrically connected to the second end of the equivalent load, and the second end of the second current detection module is electrically connected to the negative terminal of the DC power supply.

13. The power supply simulation device according to any one of claims 7 to 11, characterized in that: The power supply simulation device also includes a third current detection module; The first end of the third current detection module is electrically connected to the second end of the equivalent load and the second connection contact respectively, and the second end of the third current detection module is electrically connected to the negative terminal of the DC power supply.

14. The power supply simulation device according to any one of claims 7 to 11, characterized in that: The power supply simulation device also includes a controller; The DC power supply, parameter simulator, voltage detection module, the first control switch, the third control switch, and the equivalent load are all electrically connected to the controller. The controller is used to control the configuration of the DC power supply and the parameter simulator to simulate various parameters of the target power supply and their parameter values, and to control the first control switch and the third control switch to be turned on or off, and is also used to adjust the load parameter value of the equivalent load, and is also used to obtain the measurement value of the voltage detection module.

15. The power supply simulation device according to claim 14, characterized in that: The power supply simulation device also includes a display module; The display module is electrically connected to the controller, and is used to display various information transmitted by the controller.

16. The power supply simulation device according to claim 14, characterized in that: The power supply simulation device also includes an input module; The input module is electrically connected to the controller, and is used to transmit instructions and / or various parameter values ​​to the controller.

17. The power supply simulation device according to claim 14, characterized in that: The power supply simulation device also includes a communication module; The communication module is electrically connected to the controller, and is used for communication connection with a host computer, so that the host computer transmits instructions and / or various parameter values ​​to the controller through the communication module.

18. The power supply simulation device according to any one of claims 7 to 11, characterized in that: The power simulation device has a first mode and a second mode; When the power simulation device is in the first mode, the first control switch is turned on and the third control switch is turned off; When the power simulation device is in the second mode, the first control switch is turned off and the third control switch is turned on.

19. The power simulation device according to any one of claims 7 to 11, characterized in that: The first control switch and the third control switch are at least one of a MOS tube and a relay switch.

20. A detection system, characterized in that: The detection system comprises at least one power supply simulation device according to any one of claims 1-19.

21. The detection system according to claim 20, characterized in that: The detection system further comprises: a control component, an excitation generating component, a measuring fixture component, a fluid supply component and a measuring component; The fluid supply assembly is connected to the measuring fixture assembly, the measuring fixture assembly includes one or more meter series modules, the meter series modules are used to connect in series and clamp a fixed fluid flow meter, the fluid supply assembly is used to supply fluid to the fluid flow meter, and the measuring assembly is used to receive and measure the fluid flowing out of the fluid flow meter, so as to measure and compare the fluid flow meter; The excitation generating component is connected to the control component, and the excitation generating component is used to output an excitation signal to the fluid flow meter; Wherein, the power supply simulation device is electrically connected to the fluid flow meter clamped and fixed by the series meter module.

22. A detection method, characterized in that: Applied to the power supply simulation device according to any one of claims 1 to 19, the detection method comprises: Connecting the positive power contact and the negative power contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively, and controlling the first control switch to be turned on; Configure the parameter values ​​of various parameters of the parameter simulator to simulate the rated values ​​of various parameters of the target power supply, obtain the measurement value of the voltage detection module, and adjust the output voltage of the DC power supply according to the measurement value of the voltage detection module until the measurement value of the voltage detection module meets the preset requirements.

23. A detection method, characterized in that: Applied to the power supply simulation device according to any one of claims 1 to 19, the detection method comprises: Configuring parameter values ​​of various parameters of the parameter simulator to simulate rated values ​​of various parameters of the target power supply; Obtain the measurement value of the voltage detection module. If the measurement value of the voltage detection module meets the requirements, control the first control switch to be turned on, and connect the positive power contact and the negative power contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

24. The detection method according to claim 23, characterized in that: The power supply simulation device includes a third control switch and an equivalent load; obtaining a measurement value of the voltage detection module, and if the measurement value of the voltage detection module meets the requirement, controlling the first control switch to be turned on, and connecting the positive power contact and the negative power contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively, including: Obtaining a rated equivalent load value of a target power receiving device under a test target voltage, controlling the first control switch to be disconnected, and controlling the third control switch to be turned on, and adjusting the equivalent load value of the equivalent load according to the rated equivalent load value of the target power receiving device until the equivalent load value of the equivalent load is equal to the rated equivalent load value of the target power receiving device; Obtain the detection value of the voltage detection module, and determine whether the detection value meets the requirements. If the detection value meets the requirements, control the first control switch to be turned on, and control the third control switch to be turned off, and connect the positive power contact and the negative power contact of the power input contact of the target power receiving device to the first connection contact and the second connection contact respectively.

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