Sensor data acquisition device and method

Abstract

The invention belongs to the technical field of sensor detection, and particularly discloses a sensor data acquisition device and method.The sensor data acquisition device comprises a base, and a sensor is detachably connected to the base; the fixing seat is arranged on the base, at least one placing groove used for placing a sensor wire is formed in the fixing seat, a positioning assembly is arranged on the fixing seat, and the positioning assembly is used for fixing the sensor wire into the placing groove; the fixing plate is provided with a conductive terminal corresponding to the wire, the conductive terminal is electrically connected with the channel switcher, the channel switcher is electrically connected with the collector, the base is provided with a driving mechanism, the driving mechanism comprises a mounting plate and a driver arranged on the mounting plate, the output end of the driver is connected with the fixing plate, and the output end of the driver is connected with the collector. And the conductive terminals are driven to get close to or away from the positioning assembly. Under the driving of the driving mechanism, the conductive terminal can automatically electrify the wire of the sensor, corresponding detection is carried out after a power supply is connected, and the detection efficiency of the sensor is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor detection, and particularly to a sensor data acquisition device and method. Background Art

[0002] A sensor is a detection device that can sense the information to be measured and transform the sensed information into an electrical signal or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording, and control.

[0003] Before leaving the factory, a series of detections need to be carried out on the sensor to ensure the quality of the sensor leaving the factory. Among them, the basic data detection of the sensor is crucial, mainly including the detection of zero voltage, input impedance, output impedance, and insulation resistance. In the prior art, a multimeter is mainly used for the basic data detection of the sensor. The wires of the sensor are respectively connected to each function gear of the multimeter for detection. During the detection process, the wires need to be frequently switched and clamped, resulting in low detection efficiency of the sensor. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a sensor data acquisition device and method for solving the problem of low detection efficiency of sensors in the prior art.

[0005] To achieve the above object and other related objects, the present invention provides a sensor data acquisition device and method, including: a base, the sensor is detachably connected to the base; A fixing seat is arranged on the base. At least one placement groove for placing the wires of the sensor is opened on the fixing seat. A positioning component is arranged on the fixing seat, and the positioning component is used to fix the wires of the sensor into the placement groove; A fixing plate is provided with conductive terminals corresponding to the wires. The conductive terminals are electrically connected to a channel switcher, and the channel switcher is electrically connected to a collector. A driving mechanism is arranged on the base. The driving mechanism includes a mounting plate and a driver arranged on the mounting plate. The output end of the driver is connected to the fixing plate and is used to drive the conductive terminals to approach or move away from the positioning component.

[0006] Optionally, the positioning component includes a positioning plate and a positioning mechanism arranged on the positioning plate. The positioning plate is detachably connected to the fixing seat. A positioning hole corresponding to the placement groove is opened on the positioning plate. The positioning hole communicates with the placement groove. A positioning groove corresponding to the placement groove is arranged on the positioning plate, and the positioning groove is located on one side of the positioning hole.

[0007] Optionally, the positioning mechanism includes a driving rod and an execution plate. The driving rod is rotatably connected to the positioning plate, the execution plate is threadedly connected to the driving rod, a connecting rod corresponding to the positioning groove is provided on the execution plate, a fixing rod slidably connected to the positioning groove is provided at the free end of the connecting rod, and a pressing block for pressing the wire is provided on one side of the fixing rod away from the connecting rod.

[0008] Optionally, a sliding groove for the fixing rod to slide is provided on the positioning groove, and a plurality of guide rods slidably connected to the positioning plate are provided on the execution plate.

[0009] Optionally, the driving mechanism includes a mounting plate and a driver provided on the mounting plate. A push block is provided at the output end of the driver. The push block is detachably connected to the fixing plate. A reinforcing plate is detachably connected to the mounting plate. A positioning rod is provided on the base. The fixing plate is slidably connected to the positioning rod.

[0010] Optionally, a connecting plate is provided at the bottom of the fixing plate. The conductive terminal passes through the fixing plate and the connecting plate. One end of the conductive terminal is used to connect to the channel switch, and the other end can be used to contact the wire of the sensor.

[0011] Optionally, the conductive terminal includes a housing and a bottom rod. The bottom rod is slidably connected inside the housing. A spring is provided between the inner bottom of the housing and the bottom rod. A contact head is provided at one end of the bottom rod away from the spring. The contact head can be used to pass through the positioning hole and enter the placement groove to contact the wire of the sensor.

[0012] Optionally, the sensor data acquisition device further includes a power supply. The power supply is arranged inside the base. The power supply is electrically connected to the channel switch.

[0013] The present invention also provides a sensor data acquisition method, which uses the sensor data acquisition device as described in any one of claims 1-8, and includes: Fix the wire of the sensor in the placement groove and fix it through the positioning component; Control the power supply to turn on, power on the channel switch and the conductive terminal, and control the driving mechanism to drive the conductive terminal to contact the wire of the sensor; According to a preset program, energize the wire of the sensor, measure the basic data of the sensor respectively and output them. The basic data includes zero-point voltage, input impedance, output impedance and insulation resistance.

[0014] Optionally, the step of energizing the wire of the sensor according to a preset program, measuring the basic data of the sensor respectively and outputting them includes: The channel switch includes a plurality of communication terminals, and each communication terminal includes a power interface terminal and a plurality of wire access terminals for accessing the wires of the sensor. Each communication terminal includes a normally open terminal and a normally closed terminal; The collector includes a plurality of first collection terminals, second collection terminals, and third collection terminals; When both the power interface terminal and the wire access terminal are normally closed terminals, the first collection terminal collects the input impedance of the sensor, and the second collection terminal collects the output impedance of the sensor; When the power interface terminal is a normally open terminal and the wire access terminal is a normally closed terminal, the second collection terminal collects the zero-point voltage of the sensor; When the power interface terminal is a normally closed terminal and the wire access terminal is a normally open terminal, the third collection terminal collects the insulation impedance of the sensor; Convert the collected basic data and display it on the interaction interface.

[0015] As described above, the sensor data acquisition device and method proposed by the present invention have the following beneficial effects: In the present invention, through the provided fixing seat and the positioning components on the fixing seat, the wires of the sensor can be fixed. Then, through the conductive terminals arranged on the fixing plate, driven by the driving mechanism, the conductive terminals can automatically energize the wires of the sensor, and after accessing the power supply, corresponding detections are carried out. Compared with the prior art, the present invention does not need to clamp the wires of the sensor multiple times during the detection process, improving the detection efficiency of the sensor. Description of the Drawings

[0016] Figure 1 Shown is a schematic structural diagram of an embodiment of the present invention; Figure 2 Shown is a schematic structural diagram of the driving mechanism in an embodiment of the present invention; Figure 3 Shown is a cross-sectional view of the conductive terminal in an embodiment of the present invention; Figure 4 Shown is a schematic structural diagram of the positioning component in an embodiment of the present invention; Figure 5 Shown is a schematic structural diagram of the fixing seat in an embodiment of the present invention; Figure 6 Shown is a schematic structural diagram of the positioning plate in an embodiment of the present invention; Figure 7 Shown is a schematic structural diagram of the positioning mechanism in an embodiment of the present invention; Figure 8 Shown is a circuit diagram of an embodiment of the present invention.

[0017] Description of the Reference Numerals: Base 1, switch 101, drive mechanism 2, mounting plate 201, driver 202, push block 203, fixing plate 204, positioning rod 205, reinforcing plate 206, connecting plate 207, conductive terminal 208, housing 2081, bottom rod 2082, spring 2083, contact head 2084, positioning assembly 3, fixing seat 301, placement groove 302, positioning plate 303, positioning hole 304, positioning groove 305, sliding groove 306, fixing rod 307, pressing block 308, connecting rod 309, actuating plate 310, drive rod 311, guide rod 312, set screw 313, sensor 4, wire 401, channel switcher 5, collector 6. Detailed implementation mode

[0018] The following uses specific specific examples to illustrate the implementation mode of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0019] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the diagrams, rather than being drawn according to the number, shape, and size of the components during actual implementation. The type, quantity, and ratio of each component during its actual implementation can be arbitrarily changed, and the layout type of its components may also be more complex. The structures, ratios, sizes, etc. shown in the diagrams of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substance significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope under which the present invention can be implemented.

[0020] During the detection process of the traditional sensor 4, the operation mode of manually switching the wire 401 to access different functional gears of the multimeter makes the detection process time-consuming and poses a risk of contact stability. Since the basic data detection of the sensor 4 involves continuous tests of zero-point voltage, input impedance, output impedance, and insulation resistance, the operator needs to repeatedly disassemble and assemble the wire 401 and adjust the clamping position. The mechanical contact interface is prone to wear, and the contact resistance fluctuation of the signal transmission path will directly affect the test accuracy. The cumulative operation error caused by multi-channel switching will reduce the consistency of test data, and the physical intervention of manual operation may also cause deformation of the end of the wire 401 or damage to the insulation layer, increasing the equipment maintenance frequency.

[0021] For example, in the scenario of batch detection of sensors 4 on an industrial production line, the test bench needs to complete the basic parameter detection of 200 sensors 4 in each batch. Each sensor 4 contains 4 groups of independent test items, and the operator needs to sequentially contact the power terminal, signal output terminal, and ground terminal with the red and black test leads respectively. When testing the zero-point voltage, the wire 401 needs to be connected to the voltage gear interface of the multimeter, and when testing the input impedance, it needs to be reinstalled to the ohm gear interface. To complete all tests for a single sensor 4, 6 plugging and unplugging operations of the wire 401 are required. The frequent mechanical contact causes an oxide layer to form on the metal contacts of the connector, and the contact resistance increases from the initial 0.5 Ω to 1.2 Ω, and the signal attenuation rate reaches 8%. The test station generates 1,200 manual intervention actions per day on average, and the misconnection probability caused by operation fatigue reaches 0.3%.

[0022] If the above problems are not solved, the detection efficiency of the production line will be limited to less than 65% of the theoretical value, and the test process will become a bottleneck for productivity improvement. The impedance change of the contact interface will cause the zero-point voltage measurement error to exceed ±0.5 mV, exceeding the ±0.2 mV threshold required by the sensor 4 factory accuracy standard. The service life cycle of the connector is shortened to 3,000 plugging and unplugging operations and then needs to be replaced, increasing the equipment maintenance cost by 25%. The error superposition effect formed by multi-process manual operations will expand the fluctuation range of the pass rate of batch products to ±5%, directly affecting the reliability of the quality traceability system. The hidden danger of internal fracture caused by repeated bending of the wire 401 will also cause 2% of the latent defective products to flow into the market.

[0023] When facing the above problems, this application first considers adopting a multi-station synchronous detection architecture, and parallelly processes different parameter detection requirements by setting up independent test units. However, this scheme will greatly increase the equipment volume and manufacturing cost, and there is a risk of signal cross-interference. Then, it turns to study the automated implementation path of the positioning and electrical contact of the wire 401, and analyzes that there is a coupling relationship between the fixed accuracy of the wire 401 and the electrical contact stability, and it is difficult to ensure their coordination by manual operation. Therefore, an attempt is made to integrally design the wire 401 constraint mechanism and the contact driving mechanism 2, and control the contact action timing through mechanical linkage.

[0024] Further exploration reveals that if a pneumatic push rod is simply used to directly press and connect the wire 401, although automatic contact can be achieved, it lacks the ability to compensate for the position of the wire 401 and is prone to poor contact due to positioning deviation. Therefore, the structure of the floating conductive terminal 208 is introduced to compensate for the axial position error by using an elastic element. However, this solution still cannot solve the problem of repeated positioning of the wire 401 during multi-channel switching. Finally, by constructing a cooperative mechanism between the movable conductive terminal 208 group and the fixed wire 401 constraint assembly, precise alignment and stable conduction of the contact interface are achieved under the control of the driver 202.

[0025] As Figures 1 - 8 shown, the present invention proposes a sensor 4 data acquisition device.

[0026] In an exemplary embodiment, the sensor 4 data acquisition device includes: A base 1, to which the sensor 4 is detachably connected; A fixed seat 301, provided on the base 1, and a positioning component 3 is provided on the fixed seat 301 for fixing the wire 401 of the sensor 4; A fixing plate 204, on which a conductive terminal 208 is provided. The conductive terminal 208 is electrically connected to a channel switch 5, and the channel switch 5 is electrically connected to a collector 6. A driving mechanism 2 is provided on the base 1, and the output end of the driving mechanism 2 is connected to the fixing plate 204 and is used to drive the conductive terminal 208 to approach or move away from the positioning component 3.

[0027] Among them, the base 1 refers to the support structure for installing the sensor 4, which can be specifically implemented using a metal material or an engineering plastic material, and is detachably connected to the sensor 4 through a snap or threaded connection method, providing a stable installation foundation for the sensor 4 and facilitating disassembly and maintenance. Among them, the fixed seat 301 refers to the bearing structure installed on the base 1, which can be specifically implemented by bolt fixation or clamping, and is used to bear the positioning component 3 and provide fixed support for the wire 401, preventing poor contact caused by the movement of the wire 401 during the detection process by restricting the position of the wire 401. Among them, the positioning component 3 refers to the constraint mechanism provided on the fixed seat 301, which can be specifically implemented by a gripper or a limit card slot, and fixes the spatial position of the wire 401 of the sensor 4 through a mechanical limit method, ensuring an accurate alignment relationship between the wire 401 and the conductive terminal 208, and reducing manual adjustment operations. Among them, the conductive terminal 208 refers to the conductive component connected to the power supply, which can be specifically implemented by a copper alloy elastic sheet or a probe structure, and forms an electrical connection loop with the external power supply through welding or plugging, and establishes a conduction state with the wire 401 through elastic contact or sliding contact, realizing the automatic transmission of detection signals. Among them, the driving mechanism 2 refers to the power device that controls the movement of the conductive terminal 208, which can be specifically implemented by a linear motor or a cylinder structure, and is detachably connected to the fixed plate 204 through a push rod or a slider, driving the conductive terminal 208 to generate a linear displacement to contact or disengage from the wire 401, and replacing manual operation to complete the switching of the conduction path.

[0028] The present invention realizes the positioning and fixation of the wire 401 of the sensor 4 and the automatic electrical contact through the combined structure of the base 1, the fixed seat 301 and the fixed plate 204. The design of the driving mechanism 2 driving the conductive terminal 208 to move enables the wire 401 to automatically switch a batch of detection signals in a positioned and constrained state, replacing the traditional manual plugging and unplugging operation through mechanical motion control, and effectively solving the problem of low efficiency caused by frequent clamping of the wire 401 during the detection process.

[0029] The working process and principle of this application are as follows: The data acquisition device of the sensor 4 realizes the rapid positioning and automatic electrical contact of the wire 401 of the sensor 4 through an integrated structure design. The base 1 provides basic support, and the sensor 4 is detachably connected to the base 1, facilitating the installation and replacement of the sensor 4. The fixed seat 301 is arranged on the base 1, and the positioning component 3 on the fixed seat 301 is used to fix the wire 401 of the sensor 4, avoiding poor contact caused by the movement of the wire 401 during the detection process. The conductive terminal 208 is provided on the fixed plate 204, and the conductive terminal 208 is electrically connected to the external power supply and is used to transmit electrical signals. The driving mechanism 2 on the base 1 is connected to the fixed plate 204 to control the movement of the conductive terminal 208 relative to the positioning component 3.

[0030] The driving mechanism 2 drives the fixed plate 204 to move, so that the conductive terminal 208 can automatically approach or move away from the positioning component 3. When electrical connection is required, the driving mechanism 2 pushes the fixed plate 204 to make the conductive terminal 208 approach the positioning component 3 and contact the sensor 4 wire 401 fixed on the positioning component 3 to achieve electrical connection. When disconnection or switching to other wires 401 is required, the driving mechanism 2 drives the fixed plate 204 away from the positioning component 3 to separate the conductive terminal 208 from the wire 401. This linkage design of mechanical movement and electrical contact control ensures that the switching process of the wire 401 does not require manual intervention.

[0031] The synergy between the positioning component 3 and the conductive terminal 208 ensures the fixing accuracy of the wire 401 and realizes the reliable transmission of the detection signal through the integrated design of physical constraint and electrical connection. The positioning component 3 fixes the position of the wire 401, while the movement of the conductive terminal 208 provides precise electrical contact. This design eliminates the uncertainty in the traditional manual plug-in operation and improves the stability and reliability of the contact.

[0032] The working process of the whole device embodies the characteristics of automation and precise control. Through the precise control of the driving mechanism 2, the conductive terminal 208 can accurately establish or disconnect the electrical connection with the wire 401 fixed on the positioning component 3, which not only improves the detection efficiency, but also reduces the error and damage risk caused by human operation.

[0033] In an exemplary embodiment, at least one placement slot 302 for placing the wire 401 of the sensor 4 is formed on the fixing seat 301 .

[0034] In this embodiment, the shape of the placement groove 302 is configured to adapt to the outer contour of the wire 401 of the sensor 4, for example, a U-shaped or V-shaped groove structure is adopted, and its width is designed to be slightly larger than the diameter of the wire 401 to allow the wire 401 to be embedded, while limiting the lateral movement of the wire 401 in the groove. The depth of the placement groove 302 is set to be larger than the radius of the wire 401, thereby constraining the freedom of the wire 401 to escape from the groove body in the vertical direction. The number of placement grooves 302 corresponds to the position of the conductive terminal 208, so that the wire 401 corresponding to each conductive terminal 208 can be independently accommodated in its own groove, avoiding interference between multiple wires 401.

[0035] Illustratively, in this embodiment, the number of the wires 401 of the sensor 4 is four, and accordingly, the number of the placement slots 302 is also four, and the four wires 401 are respectively located in the corresponding placement slots 302 .

[0036] Specifically, when the wire 401 of the sensor 4 is placed in the placement groove 302, the side wall and bottom of the groove body form physical limits by contacting the surface of the wire 401, preventing the wire 401 from moving horizontally along the surface of the fixed seat 301. When the driving mechanism 2 pushes the fixing plate 204 to make the conductive terminal 208 approach the wire 401, the position of the wire 401 remains fixed due to the constraint of the groove body, and the contact area of the conductive terminal 208 can always be aligned with the preset contact point on the surface of the wire 401. For example, when the width of the placement groove 302 is 1.1 - 1.3 times the diameter of the wire 401, the wire 401 can slightly adjust its posture in the groove, but cannot produce an offset exceeding the contact range of the conductive terminal 208. Through this structure, the contact pressure distribution between the wire 401 and the conductive terminal 208 tends to be uniform, avoiding fluctuations in contact resistance caused by the sliding of the wire 401, thus ensuring the stability of the detection signal transmission.

[0037] Exemplarily, in this embodiment, the positioning plate 303 can be made of an insulating material to prevent a short circuit between the wire 401 and the positioning plate 303.

[0038] Exemplarily, the positioning plate 303 is detachably connected to the fixed seat 301 by a set screw 313.

[0039] It is worth noting that through the above technical solution, the present application provides a stable physical limiting space for the wire 401 of the sensor 4. The structure of the placement groove 302 effectively restricts the lateral movement of the wire 401, enabling the wire 401 to maintain a predetermined arrangement path on the surface of the fixing plate 204. When the conductive terminal 208 approaches the wire 401, the wire 401 cannot deviate from the predetermined position due to the limitation of the placement groove 302, thereby ensuring the precise alignment of the contact area between the conductive terminal 208 and the wire 401. It solves the problem of unstable contact caused by the free placement of the wire 401, improves the reliability of the electrical signal transmission, and further enhances the accuracy and stability of the data acquisition of the sensor 4.

[0040] In an exemplary embodiment, the positioning assembly 3 includes a positioning plate 303 and a positioning mechanism provided on the positioning plate 303. The positioning plate 303 is detachably connected to the fixed seat 301. A positioning hole 304 corresponding to the placement groove 302 is formed on the positioning plate 303. The positioning hole 304 communicates with the placement groove 302. A positioning groove 305 corresponding to the placement groove 302 is provided on the positioning plate 303, and the positioning groove 305 is located on one side of the positioning hole 304.

[0041] The positioning plate 303 and the fixed seat 301 are detachably connected by buckles or bolts, allowing the replacement of the positioning plate 303 with different hole diameters according to the diameter of the wire 401. The axis of the positioning hole 304 is aligned with that of the placement groove 302, and the hole diameter can be set to be 0.1 - 0.3 millimeters larger than the diameter of the wire 401. For example, when the diameter of the wire 401 is 2 millimeters, the positioning hole 304 can be designed to be 2.2 millimeters. The positioning groove 305 is set to a U-shaped structure. The positioning mechanism can include a screw drive structure, and its compression stroke range is set to 3 - 5 millimeters to adapt to the compression requirements of different specifications of wires 401. When the positioning plate 303 is installed on the fixed seat 301, the positioning groove 305 and the placement groove 302 form a continuous guiding channel, and the axis of the positioning hole 304 coincides with the moving track of the conductive terminal 208.

[0042] Exemplarily, the positioning assembly 3 includes a positioning plate 303 and a positioning mechanism provided on the positioning plate 303. The positioning plate 303 is detachably connected to the fixed seat 301. A positioning hole 304 corresponding to the placement groove 302 is formed on the positioning plate 303. The positioning hole 304 communicates with the placement groove 302. A positioning groove 305 corresponding to the placement groove 302 is provided on the positioning plate 303, and the positioning groove 305 is located on one side of the positioning hole 304. Specifically, the wire 401 is first placed in the placement groove 302 of the fixed seat 301. Due to the U-shaped structure of the placement groove 302 for laterally limiting the wire 401, the offset of the wire 401 is constrained to not exceed 0.5 millimeters before entering the positioning hole 304. When the conductive terminal 208 moves towards the positioning hole 304 under the push of the driving mechanism 2, the contact head 2084 passes through the positioning hole 304 and enters the area of the placement groove 302. At this time, the longitudinal position of the wire 401 is precisely defined by the inner walls of the placement groove 302 and the positioning hole 304. And before the conductive terminal 208 contacts the wire 401, the positioning mechanism drives the actuating plate 310 to move by rotating the driving rod 311, so that the pressing block 308 applies a pressing force in the vertical direction to the wire 401 that has been positioned. The pressing force range is controlled between 2 - 5 N, so that the wire 401 is further fixed in the placement groove 302, avoiding position deviation during the detection process, thus ensuring both contact stability and avoiding damage to the insulation layer of the wire 401. The detachable characteristic of the positioning plate 303 enables that when the sensor 4 model needs to be replaced, only the corresponding specification positioning plate 303 assembly needs to be replaced, without replacing the entire fixed seat 301. Through the hierarchical positioning of the positioning groove 305 and the positioning hole 304 and the dynamic pressing cooperation of the positioning mechanism, the lateral offset of the wire 401 is controlled within ±0.2 millimeters, and the fluctuation range of the contact resistance is reduced to less than 5%, effectively improving the stability of data acquisition.

[0043] Exemplarily, the positioning mechanism includes a driving rod 311 and an actuating plate 310. The driving rod 311 is rotatably connected to the positioning plate 303, and the actuating plate 310 is threadedly connected to the driving rod 311. The actuating plate 310 is provided with a connecting rod 309 corresponding to the positioning groove 305. The free end of the connecting rod 309 is provided with a fixing rod 307 slidably connected to the positioning groove 305. On the side of the fixing rod 307 away from the connecting rod 309, there is a pressing block 308 for pressing the wire 401. Specifically, when the driving rod 311 is rotated, its threaded drive pushes the actuating plate 310 to translate along the axial direction. The displacement of the actuating plate 310 is synchronously transmitted to a plurality of fixing rods 307 through the connecting rod 309, so that the fixing rods 307 move synchronously along the sliding groove 306 direction of the positioning groove 305. The pressing block 308 at the end of the fixing rod 307 generates a linear displacement accordingly, pressing the surface of the wire 401 in the vertical direction. Due to the self-locking characteristic of the threaded drive, the actuating plate 310 can maintain a stable position after moving, avoiding loosening caused by vibration. The guiding rod 312 restricts the actuating plate 310 to move only along the axial direction of the driving rod 311, ensuring uniform force on each connecting rod 309. The elastic material of the pressing block 308 deforms when contacting the wire 401, converting the linear displacement into a uniformly distributed contact pressure, and the contact pressure range can be controlled between 0.5 - 3 N. This mechanical linkage structure can achieve synchronous pressing at multiple points by rotating a single driving rod 311, and the pressing force deviation can be controlled within ±5%, significantly better than the ±20% deviation range of manual operation. In a specific embodiment, the bottom surface of the pressing block 308 can be designed to be arc-shaped to increase the contact area with the wire 401. The bottom of the pressing block 308 is also provided with an avoidance groove, and the avoidance groove can fit the outer wall of the wire 401 to improve the positioning ability of the wire 401. In a specific embodiment, the pressing block 308 is made of a material with extensibility such as rubber to ensure that the wire 401 is not damaged.

[0044] Exemplarily, the driving rod 311 and the positioning plate 303 are rotatably connected through a bearing, and the actuating plate 310 and the driving rod 311 are threadedly connected. The actuating plate 310 is provided with a connecting rod 309 corresponding to the positioning groove 305. The free end of the connecting rod 309 is provided with a fixing rod 307 slidably connected to the positioning groove 305. On the side of the fixing rod 307 away from the connecting rod 309, there is a pressing block 308 for pressing the wire 401.

[0045] Exemplarily, the positioning groove 305 is provided with a sliding groove 306 for the fixing rod 307 to slide, and the actuating plate 310 is provided with a plurality of guiding rods 312 slidably connected to the positioning plate 303. Through the provided sliding groove 306, the fixing rod 307 can slide up and down in the positioning groove 305, thereby precisely guiding the fixing rod 307.

[0046] It should be noted that in this embodiment, multi-level positioning control of the wire 401 of the sensor 4 during the fixing process is achieved. The detachable connection design between the positioning plate 303 and the fixing base 301 allows for flexible replacement of the adapted positioning components according to different types of sensors 4 or wire 401 specifications, improving the versatility of the device. The communication structure between the positioning hole 304 and the placement groove 302 ensures the uniqueness of the path for the wire 401 to extend from the placement groove 302 to the positioning hole 304, preventing the wire 401 from being misaligned due to excessive freedom during the fixing process. The setting of the positioning mechanism further strengthens the dynamic fixing ability of the wire 401. Through the coordinated action of the mechanical structure, an additional pressing force is applied after the initial positioning of the wire 401, thereby improving the contact stability while ensuring the position accuracy of the wire 401. This multi-level positioning control mechanism significantly reduces the possibility of the wire 401 shifting or loosening in the placement groove 302, thereby improving the reliable contact between the conductive terminal 208 and the wire 401 and enhancing the stability of data acquisition.

[0047] In an exemplary embodiment, the driving mechanism 2 includes a mounting plate 201 and a driver 202 disposed on the mounting plate 201. A push block 203 is provided at the output end of the driver 202. The push block 203 is detachably connected to the fixing plate 204, and a reinforcing plate 206 is detachably connected to the mounting plate 201.

[0048] In this embodiment, when the driver 202 is started, the output shaft drives the push block 203 to push the fixing plate 204 in a linear direction. The push block 203 drives the fixing plate 204 to move synchronously, driving the conductive terminal 208 on the fixing plate 204 to move to the position of the wire 401 and contact the wire 401 to conduct electricity.

[0049] Exemplarily, the driving mechanism 2 includes a mounting plate 201 and a driver 202 disposed on the mounting plate 201. The driver 202 can be an electric push rod or a cylinder. A push block 203 is provided at the output end of the driver 202. The push block 203 is detachably connected to the fixing plate 204 by bolts. A reinforcing plate 206 is detachably connected to the mounting plate 201. The reinforcing plate 206 is fixed to the mounting plate 201 by a plurality of screws. The reinforcing plate 206 can be made of a metal material, such as stainless steel or aluminum alloy. The shape of the reinforcing plate 206 can be designed as an L shape or a U shape to enhance the supporting effect on the mounting plate 201.

[0050] Exemplarily, a positioning rod 205 is provided on the base 1, and the fixing plate 204 is slidably connected to the positioning rod 205. In this embodiment, the positioning rod 205 can be vertically fixed to the edge regions on both sides of the base 1. The number can be two and they are parallelly distributed. The diameter range of the rod body can be 5 - 15 mm, and stainless steel or aluminum alloy materials are used to ensure rigidity. The sliding connection can be achieved by arranging sliding sleeves matching the positioning rod 205 on both sides of the fixing plate 204. A polytetrafluoroethylene coating can be added to the inner wall of the sliding sleeve to reduce the friction coefficient. For example, the friction coefficient is controlled within the range of 0.05 - 0.15. When the driving mechanism 2 pushes the fixing plate 204 to move, the cooperation between the positioning rod 205 and the sliding sleeve forms an axial constraint, so that the fixing plate 204 can only linearly translate along the extending direction of the positioning rod 205. This guiding structure can form a spatial complementarity with the push block 203 of the driving mechanism 2. The driving force direction applied by the push block 203 coincides with the axis direction of the positioning rod 205, thus avoiding the torque effect caused by the eccentricity of the driving force.

[0051] It should also be noted that the positioning rod 205 provided on the base 1 can be a cylindrical metal rod with a diameter of 5 mm. A through hole matching the positioning rod 205 is opened on the fixing plate 204, and the inner diameter of the through hole is slightly larger than the outer diameter of the positioning rod 205, for example, it can be 5.1 mm. The fixing plate 204 is slidably connected to the positioning rod 205 through the through hole to achieve precise guiding in the vertical direction. The positioning rod 205 can be made of stainless steel material to improve wear resistance and service life. The fixing plate 204 can be made of engineering plastic material to reduce weight while ensuring sufficient strength. The length of the positioning rod 205 can be designed according to the moving stroke of the fixing plate 204. For example, it can be 20 mm longer than the maximum moving distance of the fixing plate 204. The bottom end of the positioning rod 205 can be fixed to the base 1 by means of threaded connection or welding, etc., and a limiting structure can be provided at the top end to prevent the fixing plate 204 from detaching.

[0052] In an exemplary embodiment, a connecting plate 207 is provided at the bottom of the fixing plate 204. The conductive terminal 208 passes through the fixing plate 204 and the connecting plate 207. One end of the conductive terminal 208 is used to connect to the channel switch 5, and the other end can be used to contact the wire 401 of the sensor 4.

[0053] In this embodiment, when the driving mechanism 2 pushes the fixing plate 204 towards the positioning component 3, the double-support structure formed by the connecting plate 207 and the fixing plate 204 restricts the degree of freedom of the conductive terminal 208 in the vertical direction, and controls the offset within ±0.2 mm. The conductive terminal 208 is assembled by interference fit through two layers of plate bodies, and its fit tolerance is controlled at the H7 / h6 level to eliminate the lateral play clearance. During the movement, the fixing plate 204 slides along the positioning rod 205, forming a three-dimensional constraint with the double-fixed structure, so that the straightness error of the movement trajectory of the conductive terminal 208 is less than 0.05 mm / m. When the contact head 2084 contacts the wire 401 of the sensor 4, the internal buffer spring 2083 generates a contact pressure of 10-15 N, and the spring 2083 compresses to improve the contact stability, and the pressure fluctuation range is maintained within ±1 N by the rigid support of the connecting plate 207. The connection point between the connecting plate 207 and the push block 203 of the driving mechanism 2 is set at the geometric center position of the plate body, so that the driving force is symmetrically distributed, reducing the risk of deflection caused by torque.

[0054] Exemplarily, the connecting plate 207 and the fixing plate 204 can be assembled by welding or bolt combination, and the distance between the two is kept within the range of 2-5 mm. The conductive terminal 208 is made of copper alloy material, and its diameter tolerance is controlled within ±0.05 mm. The parallelism error between the length direction and the axis of the positioning rod 205 does not exceed 0.1 mm. The end of the conductive terminal 208 can be configured with a hemispherical contact head 2084, and the silver plating thickness on the surface of the contact head 2084 is 3-5 μm. A guiding boss can be provided at the bottom of the connecting plate 207 to form a clearance fit with the positioning rod 205 of the base 1, and the clearance size is controlled between 0.05-0.1 mm. A buffer spring 2083 can be provided inside the conductive terminal 208, and the elastic coefficient range of the spring 2083 is 5-8 N / mm, and the pre-compression amount is set to 30% of the total stroke.

[0055] Exemplarily, the conductive terminal 208 includes a housing 2081 and a bottom rod 2082. The bottom rod 2082 is slidably connected within the housing 2081. A spring 2083 is provided between the inner bottom of the housing 2081 and the bottom rod 2082. At one end of the bottom rod 2082 away from the spring 2083, there is a contact head 2084, which can be used to pass through the positioning hole 304 and enter the placement groove 302 to contact the wire 401 of the sensor 4. The housing 2081 is configured as a cylindrical cavity structure. The bottom rod 2082 is set as a rod-shaped component that can slide axially along the housing 2081. The spring 2083 is used to achieve adaptive adjustment of the contact pressure. The contact head 2084 is designed with a cylindrical copper alloy material and is surface silver-plated to enhance conductivity. The sliding connection between the bottom rod 2082 and the housing 2081 is achieved by the cooperation of a guide groove and a limit protrusion to ensure the linearity of the sliding path. An installation groove for the spring 2083 is provided between the inner bottom of the housing 2081 and the bottom rod 2082. Both ends of the spring 2083 are respectively embedded in the groove and fixed by a buckle to prevent the spring 2083 from shifting. In a specific embodiment, when the conductive terminal 208 moves towards the wire 401, the contact head 2084 passes through the positioning hole 304 and enters the placement groove 302 to contact the surface of the wire 401. During the contact process, if there are dimensional deviations or installation offsets in the wire 401, the contact head 2084 is pushed by the reaction force of the wire 401 to slide the bottom rod 2082 along the inner wall of the housing 2081, and the spring 2083 is compressed and deformed accordingly. Through the elastic deformation of the spring 2083, the pressure applied by the contact head 2084 to the wire 401 is dynamically adjusted: when the diameter of the wire 401 is too small, the spring 2083 pushes the bottom rod 2082 to extend the contact stroke to compensate for the gap; when the diameter of the wire 401 is too large, the spring 2083 compresses to absorb the excessive displacement to avoid damaging the wire 401. The hemispherical end of the contact head 2084 forms a point contact with the surface of the wire 401 during the sliding process, reducing the frictional resistance and improving the contact stability. The sliding fit between the housing 2081 and the bottom rod 2082 restricts the movement trajectory of the contact head 2084, making it always move in a direction perpendicular to the axis of the wire 401, avoiding poor contact caused by lateral offset. The preset compression amount of the spring 2083 is controlled within the range of 3 - 5 mm, for example, 4 mm, to ensure that the contact pressure is maintained within the range of 0.8 - 1.5 N, which can not only achieve reliable electrical conduction but also not damage the insulation layer of the wire 401. After the contact head 2084 enters the placement groove 302, the continuous elastic force of the spring 2083 forms a constant contact resistance between the contact head 2084 and the wire 401, ensuring the stability of the detection signal.

[0056] In one exemplary embodiment, the sensor 4 data acquisition device further includes a power supply, which is arranged within the base 1 and electrically connected to the channel switch 5.

[0057] In this embodiment, through the provided power supply, it can supply power to the channel switch 5, enabling the channel switch 5 to be electrically connected to the wire 401 of the sensor 4 through the conductive terminal 208, and then controlling the corresponding connector to be powered on and off through a preset program, thereby detecting the basic data of the sensor 4.

[0058] Exemplarily, the power supply in this embodiment is integrated inside the base 1, and a switch 101 for controlling the power supply is provided outside the base 1, so that power supply to the channel controller can be achieved synchronously.

[0059] The present invention also proposes a method for collecting sensor 4 data, which adopts the above-mentioned sensor 4 data collection device, and includes the following steps: Fix the wire 401 of the sensor 4 in the placement groove 302 and fix it through the positioning component 3; Control the power supply to turn on, power on the channel switch 5 and the conductive terminal 208, and control the driving mechanism 2 to drive the conductive terminal 208 to contact the wire 401 of the sensor 4; According to a preset program, power on the wire 401 of the sensor 4, respectively measure the basic data of the sensor 4 and output it. The basic data includes zero-point voltage, input impedance, output impedance, and insulation resistance.

[0060] As Figure 8 As shown, in an exemplary embodiment, the step of powering on the wire 401 of the sensor 4 according to a preset program, respectively measuring the basic data of the sensor 4 and outputting it includes: The channel switch 5 includes a plurality of communication terminals. The communication terminals include a power supply interface terminal and a plurality of wire 401 access terminals. The wire 401 access terminals are used to access the wire 401 of the sensor 4. The communication terminals all include a normally open terminal (NO terminal) and a normally closed terminal (NC terminal); The collector 6 includes a plurality of first collection terminals, second collection terminals, and third collection terminals; When both the power supply interface terminal and the wire 401 access terminal are normally closed terminals, the first collection terminal collects the input impedance of the sensor 4, and the second collection terminal collects the output impedance of the sensor 4; When the power supply interface terminal is a normally open terminal and the wire 401 access terminal is a normally closed terminal, the second collection terminal collects the zero-point voltage of the sensor 4; When the power supply interface terminal is a normally closed terminal and the wire 401 access terminal is a normally open terminal, the third collection terminal collects the insulation impedance of the sensor 4; Convert the collected basic data and display it on the interaction interface.

[0061] It should be noted that in this embodiment, the number of power interface ends is two, namely COM1 and COM2, which are respectively connected to the positive and negative poles of the power supply. The number of access ends of the wire 401 is four, namely COM3, COM4, COM5 and COM6, which are respectively connected to the positive and negative input ends and the positive and negative output ends of the sensor 4.

[0062] It should also be noted that in this embodiment, the four wires 401 of the sensor 4 are of different colors, and corresponding marks can be set on the fixing seat 301 to quickly clamp the wires 401.

[0063] In summary, under the drive of the drive mechanism 2, the conductive terminal 208 can automatically energize the wire 401 of the sensor 4, and perform corresponding detections after accessing the channel switch, improving the detection efficiency of the sensor 4.

[0064] The above embodiments are only illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. Sensor data acquisition device, characterized in that, Comprising: A base, the sensor being detachably connected to the base; A fixing base, arranged on the base, at least one placement groove for placing the sensor wires being formed in the fixing base, a positioning assembly being provided on the fixing base, and the positioning assembly being used for fixing the sensor wires into the placement groove; A fixing plate, conductive terminals corresponding to the wires being provided on the fixing plate, the conductive terminals being electrically connected to a channel switcher, the channel switcher being electrically connected to a collector, a driving mechanism being provided on the base, the driving mechanism including a mounting plate and a driver arranged on the mounting plate, an output end of the driver being connected to the fixing plate and being used for driving the conductive terminals to approach or move away from the positioning assembly.

2. The sensor data acquisition device according to claim 1, wherein: The positioning assembly includes a positioning plate and a positioning mechanism arranged on the positioning plate, the positioning plate being detachably connected to the fixing base, a positioning hole corresponding to the placement groove being formed in the positioning plate, the positioning hole being communicated with the placement groove, a positioning groove corresponding to the placement groove being provided on the positioning plate, and the positioning groove being located on one side of the positioning hole.

3. The sensor data acquisition device according to claim 2, characterized in that: The positioning mechanism includes a driving rod and an execution plate, the driving rod being rotatably connected to the positioning plate, the execution plate being threadedly connected to the driving rod, a connecting rod corresponding to the positioning groove being provided on the execution plate, a fixing rod slidably connected to the positioning groove being provided at a free end of the connecting rod, and a pressing block for pressing the wire being provided on a side of the fixing rod away from the connecting rod.

4. The sensor data acquisition device according to claim 3, wherein: A sliding groove for the fixing rod to slide is provided on the positioning groove, and a plurality of guiding rods slidably connected to the positioning plate are provided on the execution plate.

5. The sensor data acquisition device according to claim 1, wherein: The driving mechanism includes a mounting plate and a driver arranged on the mounting plate, a pushing block being provided at an output end of the driver, the pushing block being detachably connected to the fixing plate, a reinforcing plate being detachably connected to the mounting plate, and a positioning rod being provided on the base, the fixing plate being slidably connected to the positioning rod.

6. The sensor data acquisition device according to claim 1, characterized in that: A connecting plate is provided at the bottom of the fixing plate, the conductive terminal passes through the fixing plate and the connecting plate, one end of the conductive terminal is used for connecting to the channel switcher, and the other end can be used for contacting the wire of the sensor.

7. The sensor data acquisition device according to claim 1, characterized in that: The conductive terminal includes a housing and a bottom rod, the bottom rod being slidably connected in the housing, a spring being provided between an inner bottom of the housing and the bottom rod, a contact head being provided at an end of the bottom rod away from the spring, and the contact head being able to pass through the positioning hole and enter the placement groove to contact the wire of the sensor.

8. The sensor data acquisition device according to claim 1, characterized in that: The sensor data acquisition device further includes a power supply, the power supply being arranged in the base, and the power supply being electrically connected to the channel switcher.

9. A sensor data acquisition and method, using the sensor data acquisition device according to any one of claims 1-8, characterized in that, Comprising: Fix the wires of the sensor in the placement groove and fix them through the positioning assembly; Control the power supply to be turned on to energize the channel switcher and the conductive terminals, and control the driving mechanism to drive the conductive terminals to contact the wires of the sensor; Energize the wires of the sensor according to a preset program, respectively measure the basic data of the sensor and output it, and the basic data includes zero-point voltage, input impedance, output impedance and insulation resistance.

10. The sensor data acquisition method according to claim 9, wherein: According to a preset program, the wires of the sensor are energized, and the basic data of the sensor are measured and output respectively, including: The channel switcher includes a plurality of communication terminals, and the communication terminals include a power interface terminal and a plurality of wire access terminals. The wire access terminals are used to access the wires of the sensor, and each communication terminal includes a normally open end and a normally closed end; The collector includes a plurality of first collection terminals, second collection terminals and third collection terminals; When both the power interface terminal and the wire access terminal are normally closed ends, the first collection terminal collects the input impedance of the sensor, and the second collection terminal collects the output impedance of the sensor; When the power interface terminal is a normally open end and the wire access terminal is a normally closed end, the second collection terminal collects the zero-point voltage of the sensor; When the power interface terminal is a normally closed end and the wire access terminal is a normally open end, the third collection terminal collects the insulation impedance of the sensor; The collected basic data are converted and displayed on the interaction interface.

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