Method and system for testing waterproof performance of watch

Abstract

The invention discloses a waterproof performance test method and system for a watch, and the method comprises the steps: measuring the quality of a to-be-tested watch in a dry state, and obtaining the initial quality; a to-be-tested watch is fixed on a fixing block in the test cavity; a water tank is arranged in the testing cavity, and the fixing block is arranged in the water tank; test parameters are set through the upper computer; the test parameters comprise at least one of a target air pressure value of the cavity, test duration, an action mode for a movable part on the to-be-tested watch, action interval frequency and action times; adjusting the air pressure in the test cavity to a target air pressure value and keeping the air pressure stable; driving the test execution mechanism to act on a movable part of the to-be-tested watch according to a set mode; after the test is finished, taking out the to-be-tested watch, removing external moisture of the to-be-tested watch, and weighing the to-be-tested watch to obtain the final mass; and determining the waterproof performance of the to-be-tested watch according to the initial quality and the final quality of the to-be-tested watch. Therefore, the waterproof performance of the movable part of the to-be-tested watch can be tested.

Description

Technical Field

[0001] This invention relates to the field of waterproof performance testing technology, and in particular to a method and system for testing the waterproof performance of a watch. Background Technology

[0002] As a crucial foundation of the information society, the electronics industry has flourished and become an indispensable component alongside basic necessities like clothing, food, housing, and transportation. This industry encompasses fields such as communication equipment, computers, and other electronic equipment manufacturing. Through the research, development, and production of various electronic devices, precision components, and instruments, it continuously meets market demands, driving industrial upgrading and rapid economic growth.

[0003] At the same time, with the increasing awareness of health among the public, water sports such as swimming and diving, which can effectively improve the function of the respiratory and cardiovascular systems, are rapidly becoming popular across the country. In these sports, users often wear wearable devices such as smartwatches and operate buttons or adjust knobs underwater. Therefore, during the product research, design, and production stages, it is essential to thoroughly simulate and test the waterproof performance and operational reliability of the buttons and knobs of watches and other devices under different water depths and pressures.

[0004] Currently, some technical solutions exist for waterproofing or stress testing of electronic devices, but significant limitations remain:

[0005] Chinese patent document CN202411188471.X discloses a simulated scuba diving testing device. This device simulates the liquid pressure environment at a corresponding water depth by injecting liquid (such as water) into a pressure vessel, immersing the product under test, and then applying gas pressure to the vessel. However, this device mainly focuses on the sealing test under static pressure and does not cover the dynamic testing capability of whether the product's button and knob functions work normally under water pressure.

[0006] Chinese patent document CN201820273613.6 discloses a waterproof testing fixture and system for electronic products, which uses a detachable sealing cover combined with a pressure-holding container, and achieves a pressure seal through a pressurizing component. This fixture is mainly used to create a sealed and pressurized environment for waterproof testing, but it cannot perform functional operation and reliability verification on physical buttons, knobs, etc. of the equipment under pressurized or immersion conditions.

[0007] In summary, existing simulated underwater pressure testing devices or waterproof testing fixtures mostly focus on static sealing verification, generally lacking the ability to simultaneously test the functional pressing and rotating actions of movable parts (such as buttons and knobs) under simulated underwater pressure. This deficiency makes it difficult to accurately assess the long-term reliability and responsiveness of buttons and knobs, as well as the effectiveness of waterproof structures under dynamic operation in real underwater usage scenarios, thus affecting the quality assurance and user experience of related electronic devices, especially wearable sports devices, in underwater environments. Therefore, there is an urgent need for a method and device that can simultaneously perform static waterproofing and dynamic operational function testing under simulated water pressure. Summary of the Invention

[0008] This invention provides a method and system for testing the waterproof performance of a watch, so as to test the waterproof performance of the moving parts of the watch under test.

[0009] According to one aspect of the present invention, a method for testing the water resistance of a watch is provided, comprising:

[0010] The mass of the watch under test is measured in a dry state to obtain the initial mass;

[0011] The watch to be tested is fixed to a fixing block inside the test chamber; a water tank is provided inside the test chamber, and the fixing block is placed in the water tank;

[0012] Test parameters are set via a host computer; the test parameters include at least one of the following: target air pressure value of the cavity, test duration, movement mode of the movable part on the watch under test, movement interval frequency, and number of movements;

[0013] Adjust the air pressure inside the test chamber to the target air pressure value and keep it stable;

[0014] The drive test execution mechanism acts on the movable parts of the watch under test according to the set mode;

[0015] After the test, the watch was removed, its external moisture was removed, and it was weighed to obtain the final mass.

[0016] The water resistance of the watch under test is determined based on its initial and final mass.

[0017] Optionally, the movable part includes at least one of a button and a knob; the driving test execution mechanism acts on the movable part of the watch under test according to a set mode, including:

[0018] The drive mechanism presses the button on the watch under test according to the press setting mode;

[0019] And / or, drive the rotary actuator to rotate the knob of the watch under test according to the rotation setting mode.

[0020] Optionally, adjusting the air pressure in the test chamber to the target air pressure value and maintaining it stable includes:

[0021] Collect the real-time pressure value of the test chamber;

[0022] The real-time pressure value is compared with the target air pressure value of the cavity, and the difference between the two is analyzed based on the preset air pressure control algorithm to generate corresponding control commands.

[0023] The control command is sent to the pressure regulating actuator to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber;

[0024] Repeat the above steps to dynamically adjust the pressure inside the test chamber in a closed loop until the real-time pressure value reaches and stabilizes within the allowable error range of the target air pressure value.

[0025] Optionally, the gas pressure within the test chamber is controlled by a multi-source gas pressure control system; wherein the multi-source gas pressure control system includes: a gas source device capable of providing gas at a pressure higher than the maximum pressure required by the test chamber; a multi-channel gas supply device, the inlet of which is connected to the output of the gas source device, the multi-channel gas supply device including at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve, each branch constant pressure valve being configured to output a preset, different, stable gas pressure; an exhaust device including an exhaust valve connected to the test chamber; and a controller electrically connected to each solenoid valve in the multi-channel gas supply device and the exhaust valve in the exhaust device.

[0026] The step involves comparing the real-time pressure value with the target air pressure value of the cavity, analyzing the difference between the two based on a preset air pressure control algorithm, and generating corresponding control commands, including:

[0027] The controller compares the real-time pressure value with the target air pressure value of the cavity, and analyzes the difference between the two based on a preset air pressure control algorithm to generate corresponding control commands.

[0028] Sending the control command to the pressure regulating actuator to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber includes:

[0029] The controller sends the control command to at least one solenoid valve in the multi-channel gas supply device and / or the exhaust valve in the exhaust device to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber.

[0030] Optionally, the air pressure control algorithm is implemented by a pre-trained deep neural network;

[0031] The inputs of the deep neural network include at least: the target air pressure value of the cavity, the real-time pressure value, the output air pressure of each branch constant pressure valve in the multi-channel air supply device, the switching frequency and operating time of the solenoid valve corresponding to each branch constant pressure valve, and the switching frequency and operating time of the exhaust valve in the exhaust device; its output is a control pulse signal of at least one of the solenoid valves corresponding to the branch constant pressure valves and the exhaust valve.

[0032] Optionally, the controller is also connected to the test execution mechanism, which drives the test execution mechanism to act on the movable parts of the watch under test according to a set mode, including:

[0033] The controller drives the test execution mechanism to act on the movable parts of the watch under test according to the set mode.

[0034] Optionally, determining the water resistance of the watch under test based on its initial and final mass includes:

[0035] Calculate the change in mass based on the initial and final mass of the watch under test;

[0036] Determine whether the change in mass exceeds a preset threshold. If it does, then the watch under test is determined to have unqualified waterproof performance.

[0037] According to another aspect of the present invention, a watch water resistance testing system is provided for implementing the watch water resistance testing method as described in any embodiment of the present invention, comprising:

[0038] The weighing unit is used to measure the mass of the watch under test in a dry state to obtain its initial mass.

[0039] The test chamber unit includes a test chamber with an opening and a semi-circular lid for sealing the opening. The semi-circular lid is fixed to the test chamber by fasteners and is provided with a sealing ring. A water tank is provided inside the test chamber, and a fixing block is provided in the water tank. The fixing block is used to fix the watch under test.

[0040] The host computer is used to set test parameters; the test parameters include at least one of the following: target air pressure value of the cavity, test duration, action mode of the movable part on the watch under test, action interval frequency, and number of actions;

[0041] A multi-source pressure control system is used to adjust the air pressure in the test chamber to the target air pressure value and keep it stable;

[0042] A test execution mechanism is used to act on the movable parts of the watch under test according to a set mode;

[0043] The weighing unit is also used to weigh the watch after the test is completed and the external moisture of the watch is removed to obtain the final mass.

[0044] Optionally, the multi-source pressure control system includes:

[0045] The gas supply device is capable of providing gas at a pressure higher than the maximum pressure required by the test chamber;

[0046] A multi-channel gas supply device, the gas inlet of which is connected to the output of the gas supply device, the multi-channel gas supply device includes at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve, each branch constant pressure valve being configured to output a preset, different stable gas pressure.

[0047] An exhaust device, including an exhaust valve connected to the test chamber;

[0048] The controller is electrically connected to each solenoid valve in the multi-channel gas supply device and the exhaust valve in the exhaust device. The controller is used to generate corresponding control commands based on the real-time pressure in the test chamber and the target gas pressure value of the chamber according to a preset gas pressure control algorithm. The controller sends the control commands to at least one solenoid valve in the multi-channel gas supply device and / or the exhaust valve in the exhaust device to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber.

[0049] Optionally, the controller is also connected to the test execution mechanism, and the controller is further configured to drive the test execution mechanism to act on the movable parts of the watch under test according to the action mode, action interval frequency and action number.

[0050] The technical solution provided by this invention involves measuring the mass of the watch under test in a dry state to obtain an initial mass; then fixing the watch under test onto a fixed block inside a test chamber, wherein a water tank is provided inside the test chamber, and the fixed block is placed inside the water tank; setting test parameters via a host computer, including at least one of the following: target air pressure value of the chamber, test duration, action mode for the movable parts of the watch under test, action interval frequency, and number of actions; adjusting the air pressure inside the test chamber to the target air pressure value and maintaining it stable, then driving the test execution mechanism to act on the movable parts of the watch under test according to the set mode, thereby simulating the operation of the movable parts of the watch under test under a preset water pressure environment; after the test, removing the watch under test, removing its external moisture, and weighing it to obtain the final mass; based on the initial mass and the final mass of the watch under test, determining the waterproof performance of the watch under test, thus realizing the test of the waterproof performance of the movable parts of the watch under test.

[0051] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0053] Figure 1 This is a flowchart of a method for testing the waterproof performance of a watch according to an embodiment of the present invention;

[0054] Figure 2 This is a schematic diagram of the structure of a test chamber and a test execution mechanism provided in an embodiment of the present invention;

[0055] Figure 3 This is a schematic diagram of the structure of a watch under test provided in an embodiment of the present invention;

[0056] Figure 4 This is a flowchart of another method for testing the waterproof performance of a watch provided in an embodiment of the present invention;

[0057] Figure 5 This is a partial structural schematic diagram of a watch waterproof performance testing system provided in an embodiment of the present invention;

[0058] Figure 6 This is a schematic diagram of a three-layer neural network including one hidden layer provided by an embodiment of the present invention;

[0059] Figure 7 This is a schematic diagram of a controller structure based on a neural network provided in an embodiment of the present invention. Detailed Implementation

[0060] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0061] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0062] This invention provides a method for testing the water resistance of a watch. Figure 1 This is a flowchart of a method for testing the water resistance of a watch according to an embodiment of the present invention, see reference. Figure 1 The methods for testing the water resistance of watches include:

[0063] S110. Measure the mass of the watch under test in a dry state to obtain the initial mass.

[0064] Specifically, the watch under test is measured in a dry state to obtain accurate initial mass data. This initial mass will serve as a baseline value for comparative analysis after subsequent immersion and pressure tests. The watch under test can be placed in an environment with constant temperature (e.g., 25℃±2℃) and low humidity (e.g., relative humidity <30%) for at least 2 hours to ensure that any moisture on its surface and inside evaporates sufficiently, reaching a stable dry state. A high-precision electronic analytical balance can be used. Before measurement, the balance is placed on a stable platform free from vibration and strong airflow, and zeroed and calibrated according to its operating procedures to ensure the accuracy of the measurement data.

[0065] S120. Fix the watch to be tested onto the fixing block inside the test chamber; the test chamber is equipped with a water tank, and the fixing block is placed inside the water tank.

[0066] Specifically, in order to achieve stable and reliable testing of the watch 300 under test, it must first be correctly installed and fixed inside the test chamber 100. Figure 2 This is a schematic diagram of the structure of a test chamber and a test execution mechanism provided in an embodiment of the present invention. Figure 3 This is a structural schematic diagram of a watch under test provided in an embodiment of the present invention, for reference. Figure 2 and Figure 3 The test chamber 100 contains a water tank 110 for holding the test liquid (e.g., water or a specific solution). Within the water tank 110, one or more fixing blocks 120 are specifically designed to support and secure the watch 300 under test. These fixing blocks 120 are preferably made of corrosion-resistant, high-strength materials (e.g., stainless steel, engineering plastics), and their shape and size can be designed to match the contours of the watch case or strap of the watch 300 under test. The watch 300 under test is placed on the fixing block 120 in a preset test posture (e.g., dial up, sideways, or simulating a wearing angle). The watch 300 is secured by a fastening mechanism configured on the fixing block 120. This fastening mechanism may include, but is not limited to, adjustable buckles, flexible clamps, Velcro straps, or curved slots simulating the wrist. Its tightness should ensure that the watch does not shift or loosen in the subsequent pressurized liquid environment, while avoiding excessive pressure or scratches on the watch body. After fixing, it is necessary to ensure that the test components of the watch 300 (such as movable parts such as buttons 301 and knobs 302) are completely exposed in the liquid, and their orientation is convenient for subsequent external driving mechanisms (such as robotic arms) to perform pressing or rotation operations on them. The fixing block 120 and the watch under test fixed on it should be completely submerged below the liquid level contained in the water tank 110.

[0067] S130. Set test parameters via host computer; test parameters include at least one of the following: target air pressure value of the cavity, test duration, action mode of the movable parts on the watch under test, action interval frequency, and number of actions.

[0068] Specifically, before the test begins, the test process needs to be precisely parameterized using a host computer (such as a computer, industrial touchscreen, or dedicated control terminal). The host computer connects to the controller 40 via a wired or wireless communication interface to enable command and data interaction. On the host computer's human-machine interface, the target air pressure value of the cavity is set, calculated and set according to the simulated diving depth; the total test duration is set to control the complete cycle from the start of pressurization to the end of the test; and the motion parameters of movable parts are set. For example, for a certain button 301, the action mode is a pressing operation of button 301; the action interval frequency is set: the time interval between two consecutive pressing actions is set (e.g., once every 10 seconds), or the action frequency is directly set (e.g., 1 Hz); the number of actions is set: the total number of times the button 301 needs to be pressed during the test is set. For a certain knob 302, the action mode is the rotation operation of the knob 302; action interval frequency setting: set the time interval between two consecutive rotation actions (such as once every 10 seconds), or directly set the action frequency (such as 1 Hz); action count setting: set the total number of times the knob 302 needs to be rotated during the test.

[0069] Centralized and digital parameter setting via a host computer enables a high degree of programmability and precise reproducibility of the testing process. Operators no longer need to manually adjust complex mechanical or electrical settings; they can quickly configure complex multi-parameter test procedures simply through the interface. This greatly improves testing efficiency, avoids human error, and ensures consistency of conditions between different batches of tests, meeting standardized testing requirements.

[0070] S140. Adjust the air pressure in the test chamber to the target air pressure value and keep it stable.

[0071] Specifically, after the target air pressure value is set via the host computer, the pressure control system will automatically execute the process of precise adjustment and stable maintenance of the chamber air pressure. The host computer sends an instruction containing the target air pressure value of the chamber to the controller 40 in the pressure control system. The controller 40 controls the opening of the valve on the air pressure pipeline connected to the test chamber 100 and activates the high-precision pressure sensor 50 to monitor the current air pressure in the test chamber 100 in real time. The process of adjusting the air pressure in the test chamber 100 can be based on a preset air pressure control algorithm, achieving closed-loop automatic control based on the target air pressure value and the real-time pressure value of the chamber. This algorithm can calculate the optimal valve opening or air pump power in real time based on the magnitude and trend of the pressure difference, so as to quickly approach the target value and avoid overshoot.

[0072] S150, the drive test execution mechanism acts on the movable parts of the watch under test according to the set mode.

[0073] Specifically, the test actuator is configured to simulate human operation in real-world use, applying a constant and repeatable force to the moving parts of the watch 300 under test. Optionally, refer to... Figure 2 and Figure 3 The movable parts include at least one of a button 301 and a knob 302; the test execution mechanism includes at least: a pressing execution mechanism 401 for testing the button 301; and a rotating execution mechanism 402 for testing the knob 302. The step of driving the test execution mechanism to act on the movable parts of the watch under test 300 according to a set mode includes: driving the pressing execution mechanism 401 to press the button 301 of the watch under test 300 according to the pressing set mode; and / or driving the rotating execution mechanism 402 to rotate the knob 302 of the watch under test 300 according to the rotating set mode. The above mechanisms can be precisely driven and controlled by the main controller 40 and the movable part test module 400 according to the action mode, interval frequency, and number of actions set by the host computer.

[0074] In the test implementation method for button 301, the end of the pressing actuator 401 is equipped with a watch silicone pressing head 4011. This pressing head 4011 is connected to a weight rod via a guide structure, and standard weights of different masses can be loaded onto the weight rod. When a pressing test is required on button 301, the controller 40 controls the pneumatic valve to actuate, driving the pneumatic telescopic rod downwards. This pushes the weight rod with the weights and the silicone pressing head 4011 downwards as a whole until the silicone pressing head 4011 contacts the button 301 of the watch 300 under test and continues to apply pressure. During the pressing contact, the final pressure applied to button 301 is mainly provided by the gravity of the loaded weights themselves. This design ensures that the pressure acting on button 301 remains constant throughout the pressing stroke and holding phase, unaffected by air source fluctuations or system errors, accurately simulating finger pressing pressure.

[0075] In the test implementation method for knob 302, the rotary actuator 402 is equipped with a knob pressing head, which is also connected to a weight rod capable of loading weights. The front end of the knob pressing head is designed with a specific shape (such as a roller or friction plate) that can engage or rub against the side of the watch knob 302. The controller 40 controls another set of pneumatic valves and a pneumatic telescopic rod to drive the weight rod to move, so that the knob pressing head contacts the side of the knob 302 of the watch under test 300, thereby driving the knob 302 to rotate by friction. The rotation angle, speed, and number of rotations are all controlled by the controller 40 according to set parameters.

[0076] S160. After the test, remove the watch from the test, remove any external moisture, weigh it, and obtain the final mass.

[0077] Specifically, after completing the preset water depth and pressure test and the movable part movement test, the watch 300 under test needs to be processed and its final mass weighed for comparison and analysis with the initial dried mass. The tested watch 300 is removed from the water tank 110 of the test chamber 100, and water adhering to the outer surface of the watch can be removed using a soft, absorbent cloth. The watch 300 can also be further transferred to a clean environment with a constant temperature (e.g., 25℃±2℃) and controllable humidity (e.g., relative humidity <30%) and left horizontally for a preset period of time. This process aims to allow any small amount of water that has seeped into non-sealed parts of the watch body (such as the strap connection) to fully drain and evaporate, avoiding residual moisture affecting weighing accuracy. A high-precision electronic analytical balance can be used to obtain the final mass.

[0078] S170. Determine the water resistance of the watch under test based on its initial and final mass.

[0079] Specifically, the water resistance performance of the watch 300 under test can be determined based on the magnitude of the mass change between its initial and final mass. Optionally, the specific steps for determining the water resistance performance of the watch 300 under test based on its initial and final mass may include: calculating the mass change based on the initial and final mass of the watch 300 under test; determining whether the mass change exceeds a preset threshold; if it does, then determining that the water resistance performance of the watch 300 under test is unqualified. In other embodiments of the present invention, the water resistance performance level can also be determined based on the range of the mass change.

[0080] The water resistance testing method for watches provided in this embodiment of the invention obtains an initial mass by measuring the mass of the watch 300 under dry conditions; then, the watch 300 is fixed on a fixing block 120 inside a test chamber 100, wherein a water tank 110 is provided inside the test chamber 100, and the fixing block 120 is placed in the water tank 110; test parameters are set by a host computer, including at least one of the following: target air pressure value of the chamber, test duration, action mode for movable parts of the watch 300 under test, action interval frequency, and number of actions; after adjusting the air pressure inside the test chamber 100 to the target air pressure value and keeping it stable, the test execution mechanism is driven to act on the movable parts of the watch 300 under the set mode, thereby simulating the operation of the movable parts of the watch 300 under a preset water pressure environment. After the test, the watch 300 under test was removed, its external moisture was removed, and it was weighed to obtain the final mass. Based on the initial mass and the final mass of the watch 300 under test, the waterproof performance of the watch 300 under test was determined, thus realizing the test of the waterproof performance of the moving parts of the watch 300 under test.

[0081] Figure 4This is a flowchart of another method for testing the water resistance of a watch according to an embodiment of the present invention, see reference. Figure 4 The methods for testing the water resistance of watches include:

[0082] S210. Measure the mass of the watch under test in a dry state to obtain the initial mass.

[0083] S220. Fix the watch to be tested onto the fixing block inside the test chamber; the test chamber is equipped with a water tank, and the fixing block is placed inside the water tank.

[0084] S230. Set test parameters via host computer; test parameters include at least one of the following: target air pressure value of the cavity, test duration, action mode of the movable parts on the watch under test, action interval frequency, and number of actions.

[0085] S240, Controls the opening of the main valve on the pneumatic pipeline connected to the test chamber.

[0086] S250. Collect the real-time pressure value of the test chamber, compare the real-time pressure value with the target air pressure value of the chamber, and determine whether the real-time pressure value is stable within the allowable error range of the target air pressure value; if yes, proceed to step S280; if no, proceed to step S260.

[0087] S260: Based on a preset air pressure control algorithm, analyze the difference between the two and generate corresponding control commands.

[0088] S270. Send control commands to the pressure regulating actuator to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber, and return to the execution step S250.

[0089] S280, the drive test execution mechanism acts on the movable parts of the watch under test according to the set mode.

[0090] S290. After the test, remove the watch under test, remove any external moisture, weigh it, and obtain the final mass.

[0091] S2100. Determine the water resistance of the watch under test based on its initial and final mass.

[0092] The water resistance testing method for watches provided in this embodiment of the invention includes the following steps: adjusting the air pressure inside the test chamber 100 to a target air pressure value and maintaining its stability; acquiring the real-time pressure value of the test chamber 100; comparing the real-time pressure value with the target air pressure value of the chamber, and analyzing the difference between the two based on a preset air pressure control algorithm to generate a corresponding control command; sending the control command to a pressure regulating actuator to adjust the gas flow rate input to the test chamber 100 and / or the gas flow rate discharged from the test chamber 100; repeating the above steps to dynamically and in a closed loop adjust the pressure inside the test chamber 100 until the real-time pressure value reaches and stabilizes within the allowable error range of the target air pressure value. This embodiment achieves high precision, automated adjustment, and long-term stability of the test air pressure through the application of closed-loop automatic control and a preset air pressure control algorithm. This ensures that the watch under test 300 withstands a precise and constant water pressure environment throughout the entire test cycle, completely simulating the static pressure conditions at a specific real water depth, providing a reliable and repeatable pressure benchmark for evaluating water resistance performance, and eliminating test errors caused by pressure fluctuations.

[0093] Based on the above embodiments, the air pressure inside the test chamber 100 is controlled by a multi-source pressure control system. Figure 5 This is a partial structural schematic diagram of a watch waterproof performance testing system provided in an embodiment of the present invention, for reference. Figure 5 The multi-source pressure control system includes: a gas source device 10, capable of providing gas at a pressure higher than the maximum pressure required by the test chamber 100; a multi-channel gas supply device 20, the inlet of which is connected to the output of the gas source device 10, the multi-channel gas supply device 20 including at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve, each branch constant pressure valve being configured to output a preset, different, stable gas pressure; an exhaust device 30, including an exhaust valve 6 connected to the test chamber 100; and a controller 40, electrically connected to each solenoid valve in the multi-channel gas supply device 20 and the exhaust valve in the exhaust device 30.

[0094] Specifically, the gas source device 10 includes a booster pump 01, capable of providing gas at a pressure higher than the maximum pressure required by the test chamber 100. The inlet of the multi-channel gas source supply device 20 is connected to the output of the gas source device 10 via a first gas transmission main pipeline. The multi-channel gas source device 10 includes multiple parallel gas transmission branch pipelines, each gas transmission branch pipeline being connected to the inlet of the multi-channel gas source supply device 20, and at least a portion of the gas transmission branch pipelines are equipped with a branch constant pressure valve and a solenoid valve controlling the conduction state of the gas transmission branch pipeline. Figure 5In the structure shown, the multi-channel gas supply device 10 includes four parallel gas transmission branch lines, namely the first transmission branch line, the second transmission branch line, the third transmission branch line, and the fourth transmission branch line. The first transmission branch line is equipped with a branch constant pressure valve a and a solenoid valve 1; the second transmission branch line is equipped with a branch constant pressure valve b and a solenoid valve 2; the third transmission branch line is equipped with a branch constant pressure valve c and a solenoid valve 3; and the fourth transmission branch line is equipped with a solenoid valve 4. Optionally, a filter 8, a safety valve 9, and a pressure regulating valve d are also installed on the first gas transmission main line between the booster pump 01 and the multi-channel gas supply device 20. The gas outlet of the multi-channel gas supply device 20 is connected to the test chamber 100 through the second gas transmission main line; a solenoid valve 5 can be installed on the second gas transmission main line to control its conduction state. Furthermore, the multi-source pressure control system may also include a backup transmission main pipeline connected in parallel with the second gas transmission main pipeline, and a manual valve 7 is installed on the backup transmission main pipeline to control its on / off state. The multi-source pressure control system also includes a pressure sensor 50 electrically connected to the controller 40 for detecting the pressure inside the test chamber 100. A pressure gauge 60 is installed outside the test chamber to display the pressure value inside the test chamber.

[0095] Based on this, step S260 compares the real-time pressure value with the target air pressure value of the cavity, and analyzes the difference between the two based on a preset air pressure control algorithm to generate a corresponding control command. Specifically, step S270 sends the control command to the pressure regulating actuator to adjust the gas flow rate input to the test cavity and / or the gas flow rate discharged from the test cavity. Specifically, step S270 sends the control command to at least one solenoid valve in the multi-source gas supply device 20 and / or the exhaust valve 6 in the exhaust device 30 to adjust the gas flow rate input to the test cavity 100 and / or the gas flow rate discharged from the test cavity 100.

[0096] For example, refer to Figure 5The air pressure control mechanism is as follows: Controller 40 drives booster pump 01 to operate. Gas is filtered by filter 8 and supplied to the front end of pressure regulating valve d. After passing through pressure regulating valve d, the gas is split into four paths and connected to test chamber 100. Solenoid valve 1 is connected to constant pressure valve a, solenoid valve 2 is connected to constant pressure valve b, and solenoid valve 3 is connected to constant pressure valve c, forming multiple air pressure output sources. When all solenoid valves 1 to 4 are open, the air intake speed into the chamber is the fastest. In this embodiment, the air pressure output by constant pressure valve 3 is set to > the air pressure output by constant pressure valve 2 > the air pressure output by constant pressure valve 1, thus classifying the pressure into high, medium, and low levels. The internal pressure signal of test chamber 100 is fed back to controller 40 by high-precision air pressure sensor 50. The controller compares the set pressure with the real-time pressure, analyzes the data according to the air pressure control algorithm, and issues corresponding commands for adjustment. This controls the opening and closing states of solenoid valves 1 to 5 and exhaust valve 6, regulating the air pressure changes inside the chamber. The pressure is repeatedly adjusted until the real-time pressure reaches the calibration point pressure, forming a closed loop and achieving a stable and high-precision pressure supply required for the testing process.

[0097] Furthermore, the air pressure control algorithm is implemented by a pre-trained deep neural network, meaning that the gas pressure inside the cavity can be controlled using a neural network algorithm. The input control factors of the deep neural network include at least: the target air pressure value of the cavity, the real-time pressure value, the output air pressure of each branch constant pressure valve in the multi-channel air supply device 20, the switching frequency and operating time of the solenoid valve corresponding to each branch constant pressure valve, and the switching frequency and operating time of the exhaust valve 6 in the exhaust device 30; its output is a control pulse signal of at least one of the solenoid valves corresponding to the branch constant pressure valves and the exhaust valve 6.

[0098] Specifically, an autoencoder in deep learning is an artificial neural network with a specific structure. Its core objective is to enable the network's output layer to reconstruct the input layer's data with high accuracy through unsupervised learning. The following is an explanation of this technology:

[0099] Basic structure and working principle: An autoencoder is essentially an artificial neural network that attempts to make the output as equal to the input as possible. For example... Figure 6 As shown, a typical basic autoencoder consists of an input layer, an intermediate hidden layer, and an output layer, forming a three-layer structure. Its unique feature is that the number of nodes in the output layer is exactly the same as the number of nodes in the input layer, allowing the output layer to reconstruct the data from each node in the input layer one by one. The network maps the input data to a low-dimensional or equal-dimensional representation in the hidden layer through an encoding process, and then reconstructs the output from this representation through a decoding process. The goal of training is to minimize the error between the reconstructed output and the original input, thereby forcing the hidden layers to learn the most representative features of the input data.

[0100] Training and Feature Learning: During training, the network does not require the output to be absolutely equal to the input. Instead, it minimizes the reconstruction error by continuously adjusting the connection weights between layers. This optimization process drives the autoencoder to automatically analyze and extract effective features from the hidden layers of the input data. In particular, when the dimension of the hidden layer is lower than that of the input layer (i.e., a bottleneck structure is formed), the autoencoder is forced to learn the most important and highly relevant features in the data and discard redundant information, thereby achieving dimensionality reduction and feature extraction.

[0101] Self-Supervised Learning and Hierarchical Feature Extraction: The training of autoencoders is a typical self-supervised learning paradigm, where the learning signal originates from the data itself (i.e., the input data is used as the reconstruction target). By setting appropriate hidden layer dimensions and loss functions, the network can automatically discover and extract the inherent structure and features from the input data without manual annotation. Furthermore, the features extracted from the hidden layers of the trained autoencoder can be used as new input to train another autoencoder. Through this stacked structure, deep stacked autoencoders can be constructed, thereby achieving layer-by-layer extraction and representation of data from low-level features to high-level abstract features.

[0102] In this embodiment of the invention, the system gas pressure conforms to the gas state equation. The gas flow rate equation is determined based on the following:

[0103] ;

[0104] in,

[0105] ;

[0106] Q is the gas flow rate; R is the adiabatic coefficient of the gas, usually taken as 1.4; C is the flow coefficient, usually 0.8~0.9; T is the gas temperature; P1 is the outlet gas pressure of branch constant pressure valve a, P2 is the outlet gas pressure of branch constant pressure valve b, P3 is the outlet gas pressure of branch constant pressure valve c, P4 is the outlet gas pressure of solenoid valve 4, P5 is the real-time gas pressure in test chamber 100; S1 is the equivalent cross-sectional area of ​​the outlet of solenoid valve 1, S2 is the equivalent cross-sectional area of ​​the outlet of solenoid valve 2, S3 is the equivalent cross-sectional area of ​​the outlet of solenoid valve 3, and S4 is the equivalent cross-sectional area of ​​the outlet of solenoid valve 4.

[0107] in,

[0108] ;

[0109] , , Similarly, I will not go into details here.

[0110] The acquired cavity gas pressure signal was normalized using deep learning methods and then directly used as the input vector for training a stacked autoencoder (SAE). The input signal x1(k)~x n (k), that is, the input control factors may include: the air pressure sensor at the end of constant pressure valve a collects the air pressure value P1 at frequency f1, the air pressure sensor at the end of constant pressure valve b collects the air pressure value P2 at frequency f2, the air pressure sensor at the end of constant pressure valve c collects the air pressure value P3 at frequency f3, the air pressure sensor at the end of solenoid valve 4 collects the air pressure value P4 at frequency f4, the action time T1 of solenoid valve 1 at switching frequency f5, the action time T2 of solenoid valve 2 at switching frequency f6, the action time T3 of solenoid valve 3 at switching frequency f7, the action time T4 of solenoid valve 4 at switching frequency f8, the action time T5 of exhaust valve at switching frequency f9, and the air pressure sensor P in the cavity measures the air pressure value P5 in real time. This value is the target output signal. The output signals y1(k)~y6(k) are the output control signals of solenoid valves 1~5 and exhaust valve 6 at the kth time. The gas temperature T, the outlet pressure P1 of branch constant pressure valve a, the outlet pressure P2 of branch constant pressure valve b, the outlet pressure P3 of branch constant pressure valve c, the outlet pressure P4 of solenoid valve 4, the real-time gas pressure P5 in test chamber 100, and the equivalent cross-sectional area S1 of solenoid valve 1, the equivalent cross-sectional area S2 of solenoid valve 2, the equivalent cross-sectional area S3 of solenoid valve 3, and the equivalent cross-sectional area S4 of solenoid valve 4 are substituted into the calculation formula for Q. The gas flow rate in the chamber changes with the change in the action time of each solenoid valve, and the gas pressure value also changes accordingly, i.e., x n (k) Affects output Yd n (k) is substituted into the neural network encoding formula to gradually reduce the error between the air pressure value and the required value.

[0111] The structure of the autoencoder neural network is shown in Figure 7. The stacked autoencoder processor uses the output and feature signals of the sparse autoencoder neural network as inputs to subsequent layers of the autoencoder network, and performs unsupervised layer-by-layer encoding training on these subsequent layers. Each time, the network can be considered a subsequent layer of the sparse autoencoder. When the layer can reconstruct the previous layer and the reconstruction error is minimized, the next layer can be trained. After training each hidden layer, the next step is to perform supervised fine-tuning, adding a logistic regression layer to the last hidden layer of the stacked autoencoder and performing targeted training to train the entire deep learning network. To prevent local optima in function fine-tuning, global function fine-tuning is only allowed when a global function converges quickly. The stacked autoencoder is based on a stacked autoneural network with multiple different hidden layers, and its structure is similar. The controlled object refers to the control of the solenoid valve's action, thereby controlling the air pressure inside the cavity, i.e., y(k). In the application scenario of this application, y(k) refers to the control of the solenoid valve's action, thereby controlling the air pressure inside the cavity. Yd(k) is the error function; Z... -1 This is a commonly used transfer function in mathematics; x1(k)~x n (k) represents the various input control factors mentioned above. w1(k) ~ w n (k) represents the connection weights of various input control factors.

[0112] The encoding is defined to express x by defining the effective encoding of each input control factor in the hidden layer. n (k), which is the process of defining the encoding;

[0113] ;in, w represents the sigmoid function. n (k) represents the weights, and u represents the offset vector;

[0114] Output layer for x n The reconstruction process is the same as the decoding process.

[0115] E n For deviation, These are the weighting coefficients.

[0116] In the technical solution provided by the embodiments of the present invention, the air pressure control algorithm is implemented by a pre-trained deep neural network. That is, the gas pressure inside the cavity can be controlled by the neural network algorithm. Compared with the traditional PID (proportional-integral-derivative) control algorithm, the intelligent control algorithm based on artificial intelligence (deep learning) shows significant advantages in terms of control accuracy, dynamic performance and system adaptability.

[0117] refer to Figure 5This invention also provides a water resistance testing system for watches, comprising:

[0118] The weighing unit is used to measure the mass of the watch 300 under test in a dry state to obtain the initial mass.

[0119] The test chamber unit includes a test chamber 100 with an opening and a semi-circular pot lid for sealing the opening. The semi-circular pot lid is fixed to the test chamber 100 by fasteners and is provided with a sealing ring. The test chamber 1100 is provided with a water tank 110, and a fixing block 120 is provided in the water tank 110. The fixing block 120 is used to fix the watch 300 under test.

[0120] The host computer is used to set the test parameters; the test parameters include at least one of the following: the target air pressure value of the cavity, the test duration, the action mode of the movable parts on the watch under test 300, the action interval frequency, and the number of actions.

[0121] A multi-source pressure control system is used to adjust the air pressure in the test chamber 100 to the target air pressure value and keep it stable.

[0122] The test execution mechanism is used to act on the movable parts of the watch under test 300 according to a set mode;

[0123] The weighing unit is also used to weigh the watch 300 after the test is completed and the external moisture of the watch 300 is removed, so as to obtain the final mass.

[0124] The watch waterproof performance testing system provided in this embodiment of the invention is used to implement the watch waterproof performance testing method described in any of the above embodiments, and has the same technical effect.

[0125] Optional, the multi-source pressure control system includes:

[0126] The gas source device 10 is capable of providing gas at a pressure higher than the maximum pressure required by the test chamber 100;

[0127] The multi-channel gas supply device 20 has its inlet end connected to the output end of the gas supply device 10. The multi-channel gas supply device 20 includes at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve. Each branch constant pressure valve is configured to output a preset, different stable gas pressure.

[0128] The exhaust device 30 includes an exhaust valve connected to the test chamber 100;

[0129] The controller 40 is electrically connected to each solenoid valve in the multi-source gas supply device 20 and the exhaust valve in the exhaust device 30. The controller 40 is used to generate corresponding control commands based on the real-time pressure in the test chamber 100 and the target gas pressure value of the chamber according to a preset gas pressure control algorithm. The controller 40 sends the control commands to at least one solenoid valve in the multi-source gas supply device 20 and / or the exhaust valve in the exhaust device 30 to adjust the gas flow rate input to the test chamber 100 and / or the gas flow rate discharged from the test chamber 100.

[0130] Specifically, the gas source device 10 includes a booster pump 01, capable of providing gas at a pressure higher than the maximum pressure required by the test chamber 100. The inlet of the multi-channel gas source supply device 20 is connected to the output of the gas source device 10 via a first gas transmission main pipeline. The multi-channel gas source device 10 includes multiple parallel gas transmission branch pipelines, each gas transmission branch pipeline being connected to the inlet of the multi-channel gas source supply device 20, and at least a portion of the gas transmission branch pipelines are equipped with a branch constant pressure valve and a solenoid valve controlling the conduction state of the gas transmission branch pipeline. Figure 5 In the structure shown, the multi-channel gas supply device 10 includes four parallel gas transmission branch lines, namely the first transmission branch line, the second transmission branch line, the third transmission branch line, and the fourth transmission branch line. The first transmission branch line is equipped with a branch constant pressure valve a and a solenoid valve 1; the second transmission branch line is equipped with a branch constant pressure valve b and a solenoid valve 2; the third transmission branch line is equipped with a branch constant pressure valve c and a solenoid valve 3; and the fourth transmission branch line is equipped with a solenoid valve 4. Optionally, a filter 8, a safety valve 9, and a pressure regulating valve d are also installed on the first gas transmission main line between the booster pump 01 and the multi-channel gas supply device 20. The gas outlet of the multi-channel gas supply device 20 is connected to the test chamber 100 through the second gas transmission main line; a solenoid valve 5 can be installed on the second gas transmission main line to control its conduction state. Furthermore, the multi-source pressure control system may also include a backup transmission main pipeline connected in parallel with the second gas transmission main pipeline, and a manual valve 7 is installed on the backup transmission main pipeline to control its on / off state. The multi-source pressure control system also includes a pressure sensor 50 electrically connected to the controller 40 for detecting the pressure inside the test chamber 100. A pressure gauge 60 is installed outside the test chamber to display the pressure value inside the test chamber.

[0131] The air pressure control mechanism is as follows: Controller 40 drives booster pump 01 to operate. Gas is filtered by filter 8 and supplied to the front end of pressure regulating valve d. After passing through pressure regulating valve d, the gas is split into four paths and connected to test chamber 100. Solenoid valve 1 is connected to constant pressure valve a, solenoid valve 2 is connected to constant pressure valve b, and solenoid valve 3 is connected to constant pressure valve c, forming multiple air pressure output sources. When all solenoid valves 1 to 4 are open, the air intake speed into the chamber is the fastest. In this embodiment, the air pressure output by constant pressure valve 3 is set to > the air pressure output by constant pressure valve 2 > the air pressure output by constant pressure valve 1, thus classifying the pressure into high, medium, and low levels. The internal pressure signal of test chamber 100 is fed back to controller 40 by high-precision air pressure sensor 50. The controller compares the set pressure with the real-time pressure, analyzes the data according to the air pressure control algorithm, and issues corresponding commands for adjustment. This controls the opening and closing states of solenoid valves 1 to 5 and exhaust valve 6, regulating the air pressure changes inside the chamber. The pressure is repeatedly adjusted until the real-time pressure reaches the calibration point pressure, forming a closed loop and achieving a stable and high-precision pressure supply required for the testing process.

[0132] Pressure control plays a crucial role in simulating the environment during watch diving. For pressure control systems designed for specific conditions, the pressure generator is a key component in simulating different water depths, its function being to provide the necessary pressure for the watch during diving depth testing. During testing, the gas pressure supply needs to be precisely and evenly applied to the designated test pressure setpoint. Therefore, the pressure generation performance of the pressure generator directly affects the accuracy, stability, and convenience of watch waterproof testing and calibration. Traditional pressure generators are prone to over-pressurization, thereby compromising the watch's waterproof seal.

[0133] In this embodiment of the invention, constant pressure valves a, b, and c, and solenoid valve 4 provide four different gas sources with varying pressures. In addition, the cavity has a pressure relief valve 6 to control the pressure inside the cavity. The significant effect is that when the system sets the required gas pressure, the time from the current cavity pressure to the required gas pressure is shorter, the overshoot and fluctuation are smaller, and the gas pressure accuracy is higher.

[0134] Furthermore, the controller 40 can also be connected to the test execution mechanism, and the controller 40 is also used to drive the test execution mechanism to act on the movable parts of the watch under test according to the action mode, action interval frequency and action number.

[0135] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for testing the water resistance of a watch, characterized in that, include: The mass of the watch under test is measured in a dry state to obtain the initial mass; The watch to be tested is fixed on the fixing block inside the test chamber; The test chamber is equipped with a water tank, and the fixing block is installed in the water tank; Test parameters are set via a host computer. The test parameters include at least one of the following: target air pressure value of the cavity, test duration, movement pattern of the movable part on the watch under test, movement interval frequency, and number of movements; Adjust the air pressure inside the test chamber to the target air pressure value and keep it stable; The drive test execution mechanism acts on the movable parts of the watch under test according to the set mode; After the test, the watch was removed, its external moisture was removed, and it was weighed to obtain the final mass. The water resistance of the watch under test is determined based on its initial and final mass.

2. The method for testing the waterproof performance of a watch according to claim 1, characterized in that, The movable component includes at least one of a button and a knob; the driving test execution mechanism acts on the movable component of the watch under test according to a set mode, including: The drive mechanism presses the button on the watch under test according to the press setting mode; And / or, drive the rotary actuator to rotate the knob of the watch under test according to the rotation setting mode.

3. The method for testing the waterproof performance of a watch according to claim 1, characterized in that, Adjusting the air pressure inside the test chamber to the target air pressure value and maintaining it stable includes: Collect the real-time pressure value of the test chamber; The real-time pressure value is compared with the target air pressure value of the cavity, and the difference between the two is analyzed based on the preset air pressure control algorithm to generate corresponding control commands. The control command is sent to the pressure regulating actuator to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber; Repeat the above steps to dynamically adjust the pressure inside the test chamber in a closed loop until the real-time pressure value reaches and stabilizes within the allowable error range of the target air pressure value.

4. The method for testing the waterproof performance of a watch according to claim 3, characterized in that, The gas pressure within the test chamber is controlled by a multi-source gas pressure control system. This system includes: a gas source device capable of providing gas at a pressure higher than the maximum pressure required by the test chamber; a multi-channel gas supply device, its inlet connected to the output of the gas source device, the multi-channel gas supply device including at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve, each branch constant pressure valve configured to output a preset, distinct, stable gas pressure; an exhaust device including an exhaust valve connected to the test chamber; and a controller electrically connected to each solenoid valve in the multi-channel gas supply device and the exhaust valve in the exhaust device. The step involves comparing the real-time pressure value with the target air pressure value of the cavity, analyzing the difference between the two based on a preset air pressure control algorithm, and generating corresponding control commands, including: The controller compares the real-time pressure value with the target air pressure value of the cavity, and analyzes the difference between the two based on a preset air pressure control algorithm to generate corresponding control commands. Sending the control command to the pressure regulating actuator to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber includes: The controller sends the control command to at least one solenoid valve in the multi-channel gas supply device and / or the exhaust valve in the exhaust device to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber.

5. The method for testing the waterproof performance of a watch according to claim 4, characterized in that, The air pressure control algorithm is implemented by a pre-trained deep neural network; The inputs of the deep neural network include at least: the target air pressure value of the cavity, the real-time pressure value, the output air pressure of each branch constant pressure valve in the multi-channel air supply device, the switching frequency and operating time of the solenoid valve corresponding to each branch constant pressure valve, and the switching frequency and operating time of the exhaust valve in the exhaust device; its output is a control pulse signal of at least one of the solenoid valves corresponding to the branch constant pressure valves and the exhaust valve.

6. The method for testing the waterproof performance of a watch according to claim 4, characterized in that, The controller is also connected to the test execution mechanism, which drives the test execution mechanism to act on the movable parts of the watch under test according to a set mode, including: The controller drives the test execution mechanism to act on the movable parts of the watch under test according to the set mode.

7. The method for testing the water resistance of a watch according to claim 1, characterized in that, The step of determining the water resistance of the watch under test based on its initial and final mass includes: Calculate the change in mass based on the initial and final mass of the watch under test; Determine whether the change in mass exceeds a preset threshold. If it does, then the watch under test is determined to have unqualified waterproof performance.

8. A water resistance testing system for watches, characterized in that, A method for testing the water resistance of a watch as described in any one of claims 1 to 7, comprising: The weighing unit is used to measure the mass of the watch under test in a dry state to obtain its initial mass. The test chamber unit includes a test chamber with an opening and a semi-circular lid for sealing the opening. The semi-circular lid is fixed to the test chamber by fasteners and is provided with a sealing ring. A water tank is provided inside the test chamber, and a fixing block is provided in the water tank. The fixing block is used to fix the watch under test. The host computer is used to set test parameters; the test parameters include at least one of the following: target air pressure value of the cavity, test duration, action mode of the movable part on the watch under test, action interval frequency, and number of actions; A multi-source pressure control system is used to adjust the air pressure in the test chamber to the target air pressure value and keep it stable; A test execution mechanism is used to act on the movable parts of the watch under test according to a set mode; The weighing unit is also used to weigh the watch after the test is completed and the external moisture of the watch is removed to obtain the final mass.

9. The watch waterproof performance testing system according to claim 8, characterized in that, The multi-source pressure control system includes: The gas supply device is capable of providing gas at a pressure higher than the maximum pressure required by the test chamber; A multi-channel gas supply device, the gas inlet of which is connected to the output of the gas supply device, the multi-channel gas supply device includes at least two parallel branch constant pressure valves and a solenoid valve located on one side of each branch constant pressure valve, each branch constant pressure valve being configured to output a preset, different stable gas pressure. An exhaust device, including an exhaust valve connected to the test chamber; The controller is electrically connected to each solenoid valve in the multi-channel gas supply device and the exhaust valve in the exhaust device. The controller is used to generate corresponding control commands based on the real-time pressure in the test chamber and the target gas pressure value of the chamber according to a preset gas pressure control algorithm. The controller sends the control commands to at least one solenoid valve in the multi-channel gas supply device and / or the exhaust valve in the exhaust device to adjust the gas flow rate input to the test chamber and / or the gas flow rate discharged from the test chamber.

10. The watch waterproof performance testing system according to claim 9, characterized in that, The controller is also connected to the test execution mechanism, and the controller is also used to drive the test execution mechanism to act on the movable parts of the watch under test according to the action mode, action interval frequency and action number.

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