Detachable hardware type multifunctional electrostatic comprehensive detection equipment and detection system

Abstract

The invention discloses a detachable hardware type multifunctional electrostatic comprehensive detection device and detection system, and belongs to the technical field of electrostatic detection, the detachable hardware type multifunctional electrostatic comprehensive detection device comprises a host, the host is a handheld device, and the host is provided with a display screen, an entity key area and a code scanning module; a wireless transmission module is integrated in the host and is used for realizing communication connection with a background management system so as to support real-time data uploading and paperless management functions, and the host is compatible with a plurality of hot plug hardware probe modules including a module A, a module B, a module C, a module D and a module E; wherein the module A is a non-contact electrostatic voltage measuring module, the module B is an ion fan balance degree testing module, the module C is a human body walking voltage and electrostatic potential testing module, and the module D is a resistance testing module. The invention provides the comprehensive electrostatic detection equipment which integrates multiple detection functions, has intelligent data management, and can effectively prevent data counterfeiting and reduce the operation cost.

Description

Technical Field

[0001] This invention relates to the field of electrostatic detection technology, and in particular to a detachable hardware-type multifunctional electrostatic integrated detection device and system. Background Technology

[0002] With the rapid development of high-tech manufacturing industries such as electronics, semiconductors, 3C communications, and new energy, electrostatic discharge (ESD) protection has become a critical and indispensable part of the production process. During personnel operation, product flow, and transportation, sensitive components are easily affected by ESD breakdown or ESD adsorption, leading to device damage or potential failure. Therefore, in order to ensure product yield and reliability, enterprises must regularly conduct strict testing and verification of various anti-static facilities and items in the production environment. However, current ESD testing technologies and management models have many problems.

[0003] First, existing electrostatic discharge (ESD) testing typically involves configuring separate, dedicated instruments for different testing objects. To meet comprehensive testing needs, factories must purchase and maintain multiple types of equipment, which not only significantly increases equipment procurement and maintenance costs but also adds complexity to on-site management.

[0004] Secondly, current testing processes typically employ manual reading and paper-based recording. After completing the tests, testing personnel must enter the data into documents item by item. This method is resource-intensive and prone to inaccuracies and lack of credibility due to errors, data loss, or human tampering, making it difficult to meet the stringent data traceability requirements of high-end clients.

[0005] Furthermore, the traditional offline testing management model makes it difficult to effectively monitor the testing cycle. When equipment calibration expires or the testing cycle ends, managers cannot obtain information in a timely manner, resulting in untested or expired protective facilities still being used on the production line, which greatly threatens product quality and safety. Summary of the Invention

[0006] The purpose of this invention is to provide a comprehensive electrostatic testing device that integrates multiple detection functions, possesses intelligent data management, effectively prevents data fraud, and reduces operating costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a detachable hardware-type multifunctional electrostatic comprehensive detection device, including a main unit, which is a handheld device, and the main unit is equipped with a display screen, a physical button area and a barcode scanning module; The host integrates a wireless transmission module to enable communication with the back-end management system, thereby supporting real-time data upload and paperless management functions. The host is compatible with multiple hot-swappable hardware probe modules, including module A, module B, module C, module D, and module E. Among them, module A is a non-contact electrostatic voltage measurement module, module B is an ion fan balance test module, module C is a human walking voltage and electrostatic potential test module, module D is a resistance test module, and module E is a leakage voltage test module.

[0008] As a further description of the above technical solution: the display screen of the host is a color LCD or OLED screen, used to display the test menu and the results during the measurement process. The test menu includes function options such as high resistance test, low resistance test, leakage voltage test and static voltage test.

[0009] As a further description of the above technical solution: the physical button area of ​​the host includes a power button, a test button, a save button, a cancel button, a mode switch button, and a scan button.

[0010] As a further description of the above technical solution: the host is equipped with a buzzer to sound an alarm when the detection result exceeds the standard range.

[0011] As a further description of the above technical solution: the side wall of the host is equipped with a multi-pin quick-release interface and a banana plug. The quick-release interface includes a power pin, an analog signal input pin, and a digital communication pin.

[0012] As a further description of the above technical solution: various hardware probe modules are connected to the host via quick-release interfaces. The host can automatically identify the type of the connected module and quickly switch to the corresponding test interface.

[0013] As a further description of the above technical solution: the wireless transmission module embedded in the host uses Wi-Fi or Bluetooth technology, which can realize the real-time transmission of test data and upload it to the background system.

[0014] As a further description of the above technical solution: Module A includes an electrostatic field sensor and a ranging LED light; Module B integrates a miniature metal plate capacitor assembly; Module C is equipped with a high-sensitivity potentiometer interface; Module D includes a test fixture and a weighted electrode; Module E is configured with a contact probe head.

[0015] The detection system workflow includes the following steps: a. The host identifies the type of the connected hardware probe module through the digital communication pin of the quick-release interface and automatically switches to the corresponding dedicated test interface; b. Scan the unique identifier of the object to be tested using the barcode scanning module, and query the backend server through the wireless transmission module to obtain the corresponding preset electrostatic discharge judgment threshold; c. After positioning and focusing, the host collects test data and uses an analog-to-digital converter to sample the received signal multiple times and calculate the average value; d. The host compares the collected values ​​with the preset threshold obtained in step b. If the test result is qualified, it displays PASS and emits a short prompt tone. If it is unqualified, it displays NG and emits an urgent alarm by a buzzer. e. The host will upload data packets containing information such as timestamps, operator IDs, measured values, and judgment results to the back-end management system in real time via the wireless transmission module.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The equipment breaks through the limitations of traditional single instruments dedicated to a single function. It adopts an architecture of main unit plus detachable hardware modules. By changing different test kits, a single main unit can perform tests for seven functions, including electrostatic voltage, human walking voltage, surface resistance, leakage voltage, contact low resistance, ion fan balance, and contact low voltage. This multi-functional integrated design significantly reduces the factory's need to purchase multiple instruments, lowers equipment calibration and maintenance costs, and simplifies the management process of on-site equipment.

[0017] 2. In addition, the instrument integrates infrared barcode scanning and wireless transmission modules to build a closed-loop workflow of "scan-test-upload". Before testing, the barcode of the workstation or personnel needs to be scanned. The test data is transmitted in real time through the wireless network and stored in the background system. There is no need for manual recording, which effectively solves the problems of low efficiency and easy data loss of traditional recording methods. At the same time, it fundamentally eliminates the possibility of data fraud and ensures the authenticity and traceability of the data.

[0018] 3. The instrument has a built-in buzzer that automatically alarms when test data exceeds the preset standard, providing a direct reminder to operators to prevent defective products from flowing into subsequent processes. In terms of software, the back-end system has functions for missed test reminders and expiration notifications, and supports email notification mechanisms to ensure that all protective items are re-inspected within their validity period, effectively eliminating the risk of product damage that may be caused by expired or missed inspections of equipment. Attached Figure Description

[0019] Figure 1 A top view of the main unit of the present invention is shown; Figure 2 A front view of the host computer of the present invention is shown; Figure 3 A side view of the host computer of the present invention is shown; Figure 4 A cross-sectional view of the host computer of the present invention is shown; Figure 5 A schematic diagram of the hardware probe module of the present invention is shown; Figure 6 A schematic diagram of the workflow of the present invention is shown.

[0020] Legend: 10. Main unit; 11. Display screen; 12. Power button; 13. Test button; 14. Save button; 15. Cancel button; 16. Mode switch button; 17. Scan button; 18. Barcode scanning module; 19. Wireless transmission module; 20. Buzzer; 21. Quick-release interface; 211. Power pin; 212. Analog signal input pin; 213. Digital communication pin; 22. Banana socket; 23. Electrostatic field sensor; 24. Distance measuring LED; 25. Miniature metal plate capacitor assembly; 26. Potentiometer interface; 27. Test fixture; 28. Weighted electrode; 29. ​​Contact probe head. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0022] Please see Figures 1-6 The present invention provides a technical solution: a detachable hardware-type multifunctional electrostatic comprehensive detection device, including a main unit 10. The main unit 10 adopts a handheld structure and the shell design conforms to ergonomics, making it easy to operate with one hand.

[0023] The host 10 is equipped with a display screen 11, preferably a color LCD or OLED screen, to display the human-machine interface and various test menus. These test menus cover function options such as high resistance test, low resistance test, leakage voltage test and static voltage test, and the specific contents are not limited to those listed above.

[0024] Given the complex factory operating environment and the fact that operators may need to wear anti-static gloves, single touchscreen operation may malfunction or result in accidental touches. To improve the operational reliability of the equipment, this embodiment provides a physical button area below the display screen 11, including the following buttons: power button 12, used to control the power on / off of the equipment; test button 13, used to start the current measurement function; save button 14, used to confirm and save the current test data; cancel button 15, used to exit the operation interface or discard test data; mode switch button 16, used to quickly switch between high resistance, low resistance, or other functional states in manual mode; and scan button 17, used to activate the barcode scanning function.

[0025] To achieve intelligent data management and error prevention control, the host 10 integrates a barcode scanning module 18 and a wireless transmission module 19.

[0026] The barcode scanning module 18 is installed on the top of the host 10 and is responsible for scanning barcodes or QR codes to quickly identify production line workstation numbers, operator numbers, or the unique identifier of the product being tested.

[0027] The wireless transmission module 19 is a Wi-Fi or Bluetooth module. The wireless transmission module 19 realizes the communication connection between the host 10 and the background management system, and is used to upload test data in real time, thereby realizing paperless data recording and traceable management.

[0028] In addition, the inner wall of the main unit 10 is equipped with a buzzer 20. The system has preset standard thresholds for each test item. When the test result exceeds the standard range and is judged to be unqualified, the buzzer 20 will automatically alarm to remind the operator to pay attention in time.

[0029] A multi-pin quick-release interface 21 is provided on the side wall of the host 10. The quick-release interface 21 not only serves as a physical connection port, but also acts as a hub for electrical transmission and communication functions. Specifically, the quick-release interface 21 includes a power pin 211, an analog signal input pin 212, and a digital communication pin 213.

[0030] Power pin 211 is responsible for providing power support to external hardware modules; analog signal input pin 212 is used to receive analog voltage or current signals collected by external sensors; digital communication pin 213 is based on I2C, UART or GPIO level logic technology and is used by the host 10 to automatically identify the function type of the access module.

[0031] In addition, to ensure compatibility with traditional testing methods, the bottom of the main unit 10 still retains the standard banana socket 22, which typically includes HR, LR, and LV interfaces, to connect universal test leads and simple contact electrodes.

[0032] Based on the quick-release interface 21, this device is equipped with a series of hot-swappable hardware probe modules. Users only need to insert the corresponding module into the quick-release interface 21, and the host 10 can automatically activate the corresponding function. The hardware probe modules include module A, module B, module C, module D and module E.

[0033] Module A is a non-contact electrostatic voltage measurement module, which mainly includes an electrostatic field sensor 23 and a distance measuring LED light 24.

[0034] Module A adopts an integrated probe design. Its shell is made of antistatic ABS material and is internally electromagnetically shielded to optimize anti-interference performance. The electrostatic field sensor 23 equipped at the front end of Module A is preferably a MEMS vibration capacitive sensor or a chopper zero-stabilized sensor. This sensor is encapsulated in a grounded metal shielding ring and senses the external electric field through the precision measurement hole at the front end, which can effectively reduce the interference of stray electric fields in the surrounding environment.

[0035] The ranging LED light 24 consists of two high-brightness red LED light sources installed at an angle. Their optical axes intersect at a distance of about 25 mm from the front end of the distance sensor. During operation, when the user moves the host 10 so that the two red light spots on the surface of the object being measured coincide into a clear circular light spot, it indicates that the standard test distance has been reached. At this time, the analog voltage signal output of the electrostatic field sensor 23 reaches the optimal accuracy.

[0036] Module A integrates a preamplifier circuit to convert weak induced charge signals into standard analog voltage signals of 0-3 volts, and transmits them to the host 10 through the analog signal input pin 212 of the quick-release interface 21, ensuring stable and efficient signal transmission.

[0037] Module B is an ion fan balance test module, mainly used to evaluate the performance of the ion eliminator. This module integrates a miniature metal plate capacitor assembly 25, which consists of a suspended stainless steel induction plate and a grounded shield plate. The two are isolated by a polytetrafluoroethylene high-insulation support, which has extremely low leakage current characteristics to ensure high accuracy of test data.

[0038] Module B contains a miniature high-voltage generator that can boost the low-voltage power supplied by power pin 211 to generate a standard test voltage of ±1000V. The module operates in two modes.

[0039] Attenuation time test mode: The host 10 controls the high voltage generator to instantly charge the induction plate to 1000V, and then cuts off the high voltage. By monitoring the time required for the voltage of the induction plate to decay from 1000V to 100V, the static elimination time is calculated. Balance test mode: The high voltage generator is turned off, and the residual voltage value blown out by the ion fan is directly measured by the induction plate to evaluate the voltage balance performance of the ion fan.

[0040] Module C is a human walking voltage / human electrostatic potential testing module. Module C is used to assess the static electricity generated by human movement. Module C includes a high-sensitivity potentiometer interface 26. Module C is specifically designed to capture dynamic static electricity changes of the human body during movement.

[0041] Specifically, the high-sensitivity potentiometer interface 26 is connected to a stainless steel cylindrical handle via a low-noise coaxial cable. The handle conforms to the IEC61340-4-5 standard, has a diameter of approximately 25 mm, a length of approximately 150 mm, and a finely polished surface to ensure good contact with the human hand.

[0042] Given that human walking may generate electrostatic voltages of up to several thousand volts, but accompanied by extremely weak currents, module C is equipped with an electrostatic meter operational amplifier circuit with ultra-high input impedance and a voltage divider network. This circuit can proportionally reduce the human body's electrostatic potential within a range of up to ±5000V and transmit it to the host 10 through analog signal input pin 212.

[0043] The host 10 uses high-speed sampling technology to record data in real time, thereby generating a dynamic waveform diagram of electrostatic voltage changing over time.

[0044] Module D is a resistance / high resistance / low resistance test kit. Module D is mainly used to test the surface resistance or point-to-point resistance of materials. Module D is connected to the host 10 through test fixture 27 and is used in conjunction with the weight electrode 28.

[0045] Specifically, module D integrates a programmable boost circuit that automatically switches between low-impedance and high-impedance testing according to instructions from host 10 to meet different testing requirements.

[0046] The test fixture 27 adopts a branched shielded cable design and is connected to two weighted electrodes 28. The weighted electrodes 28 are made of stainless steel bodies with a weight of 5kg, and their bottoms are attached with conductive rubber pads to ensure a stable contact area and uniform pressure with the surface of the material being tested during the test.

[0047] Module E is a leakage voltage / contact type low voltage module. Module E is specifically designed for testing power tools on the production line, such as soldering irons and electric screwdrivers. Module E is a dedicated contact probe head 29. After being inserted into the host 10, it measures the leakage voltage to ground by contacting the metal part of the tool.

[0048] Specifically, module E is equipped with a contact probe head 29, made of beryllium copper plated with gold. The tip is sharp and can effectively penetrate the oxide layer or flux residue on the surface of the power tool to achieve stable electrical contact. The probe tail is equipped with a telescopic protective sleeve to prevent accidental contact or short circuit when not in operation.

[0049] An auxiliary grounding wire is led out from the side of module E, with an alligator clip at the end, which can be connected to the common grounding point of the production line to ensure the formation of a complete test circuit.

[0050] Module E incorporates a low-pass filter and a true RMS converter chip to accurately distinguish between true leakage voltage and high-frequency noise. Its design effectively captures millivolt-level weak leakage voltages and filters out high-frequency interference, preventing misjudgments caused by high-frequency noise, while protecting sensitive components from electrical overstress damage.

[0051] The specific workflow of the multi-functional electrostatic comprehensive detection system: S1: System Initialization S101 Power-on Self-Test: When the operator presses the power button 12, the main control chip in the host 10 will start and execute the self-test program, sequentially checking the battery level, memory status, connection status of the wireless transmission module 19, and whether the buzzer 20 is functioning properly. If the self-test result shows that the system status is normal, the display screen 11 will enter the standby main interface; if an abnormality is detected, the display screen 11 will display the corresponding error code prompt information.

[0052] S102 Module Identification: According to the test task of the shift, the operator inserts the corresponding hardware probe into the multi-pin quick-release interface 21.

[0053] S103 Protocol Adaptation: The host 10 reads the ID chip inside the module through the digital communication pin 213, or detects specific level logic, to determine that the connected module is a non-contact electrostatic voltage measurement module.

[0054] S104 Interface Reconstruction: After confirming the module type, the host 10 automatically calls the corresponding driver from the memory and quickly switches the UI interface of the display screen 11 from the "Main Menu" to the "Electrostatic Voltage Test Dedicated Interface". This interface displays the voltage value, test distance indicator icon and the currently set safety threshold in real time.

[0055] S2: Object Recognition and Standard Dynamic Matching S201 Identity and Object Binding: The operator activates the barcode scanning module 18 by pressing the scan button 17, first scanning the employee card QR code to complete the login verification, and then scanning the unique serial number barcode of the workstation or product to be tested.

[0056] S202 Threshold Invocation: After obtaining the barcode information, host 10 sends a query request to the backend server through wireless transmission module 19. The server transmits the corresponding judgment criteria to host 10 in real time based on the process requirements of the workstation or product. For example, some sensitive workstations need to meet the condition that the electrostatic voltage is below 100V, while ordinary workstations need to meet the condition that the electrostatic voltage is below 500V. If the network is abnormal or communication is interrupted, host 10 will automatically use the most recently updated general standard in the local database for matching.

[0057] S3: Standardized test execution, taking electrostatic voltage test as an example. S301 Positioning and Focusing: The operator holds the main unit 10 and aligns it with the surface of the object being measured. At this time, the two distance measuring LEDs 24 on module A emit red beams. The operator adjusts the distance between the main unit 10 and the surface of the object being measured so that the two separate red light spots on the surface being measured gradually converge into a clear concentric circle, thereby confirming that the current measurement distance is the standard value of 25 mm.

[0058] S302 Trigger Acquisition: At the moment the light spots overlap, the operator presses the test button 13.

[0059] S303 Signal Processing: The electrostatic field sensor 23 is responsible for collecting surface electrostatic field signals and generating analog voltage signals through the internal circuit of the sensor, which are then transmitted to the host 10.

[0060] The analog-to-digital converter of host 10 samples the received signal multiple times and calculates the average value to effectively reduce random noise interference, thereby obtaining the final test value.

[0061] S4: Judgment and Feedback S401 Logic Comparison: The microprocessor of the host 10 compares the final acquired value with the preset threshold obtained in step S202.

[0062] S402 Pass / Fail Feedback: When the test value is within the allowable range, such as <100V, the background of the display screen 11 will turn green and a prominent "PASS" message will pop up. At the same time, the buzzer 20 will emit a short "beep" sound to indicate that the test has passed.

[0063] S403 Abnormal Alarm: When the test value exceeds the specified range, such as ≥100V, the background of the display screen 11 will immediately turn into a bright red and display the "NG" mark and the specific value that exceeds the range; at the same time, the buzzer 20 will emit a rapid intermittent alarm sound or a continuous long sound to strongly remind the operator to pay attention.

[0064] S5: Data Closed Loop and Traceability S501 Data Packet: Regardless of whether the test result is PASS or NG, the host 10 will automatically generate a data packet in the following format: timestamp + operator ID + workstation or product serial number + test module type + measured value + judgment result + device serial number.

[0065] S502 Real-time Upload: Data packets are sent in real-time to the enterprise MES system or a dedicated electrostatic monitoring backend via the wireless transmission module 19.

[0066] S503 offline caching mechanism: When the on-site wireless network signal is unstable and the upload fails, the host 10 will automatically store the data in the internal non-volatile memory and display the message "Offline data not transmitted" in the screen status bar.

[0067] Once the network connection is restored, the system will automatically enable the resume upload function, uploading the cached data to the server in batches to ensure data integrity and no loss.

[0068] S504 Backend Linkage: After receiving "NG" data, the server automatically triggers an email notification according to the preset strategy, which is promptly sent to the production line manager or quality engineer to achieve risk warning and closed-loop management.

[0069] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A detachable hardware multifunctional electrostatic comprehensive detection device, characterized in that, The application relates to a handheld static electricity testing device, which comprises a host (10), wherein the host (10) is provided with a display screen (11), a physical button area and a code scanning module (18); the host (10) is internally integrated with a wireless transmission module (19) for realizing communication connection with a background management system, thereby supporting real-time data uploading and paperless management functions; the host (10) is compatible with multiple hot-plug hardware probe modules, including a module A, a module B, a module C, a module D and a module E; the module A is a non-contact static voltage measurement module, the module B is an ion fan balance degree test module, the module C is a human body walking voltage and static potential test module, the module D is a resistance test module, and the module E is a leakage voltage test module. The display screen (11) of the host (10) adopts a color LCD or OLED screen and is used for displaying a test menu and a result in a measurement process; the test menu comprises function options of high resistance test, low resistance test, leakage voltage test and static voltage test. The physical button area of the host (10) comprises a power button (12), a test button (13), a save button (14), a cancel button (15), a mode switching button (16) and a scanning button (17).

2. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, wherein, The host (10) is provided with a buzzer (20) for emitting an alarm sound when a detection result exceeds a standard range.

3. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, wherein, The sidewall of the host (10) is provided with a multi-pin quick-release interface (21) and a banana socket (22); the quick-release interface (21) comprises a power pin (211), an analog signal input pin (212) and a digital communication pin (213).

4. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, characterized in that, Various hardware probe modules are connected with the host (10) through the quick-release interface (21); the host (10) can automatically identify the type of the connected module and rapidly switch to a corresponding test interface.

5. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, characterized in that, The wireless transmission module (19) embedded in the host (10) adopts Wi-Fi or Bluetooth technology and can realize real-time transmission of test data and uploading of the test data to a background system.

6. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 5, characterized in that, The module A comprises an electrostatic field sensor (23) and a ranging LED lamp (24); the module B is integrated with a micro metal plate capacitor assembly (25); the module C is provided with a high-sensitivity potentiometer interface (26); the module D comprises a test clamp (27) and a heavy hammer electrode (28); and the module E is provided with a contact probe head (29).

7. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, characterized in that, The application further discloses a static electricity testing method, which comprises the following steps:

8. The detachable hardware multi-functional electrostatic comprehensive detection device according to claim 1, characterized in that, a. the host (10) identifies the type of the connected hardware probe module through the digital communication pin (213) of the quick-release interface (21) and automatically switches to a corresponding test interface; 9. A detection system workflow based on the detection device of any one of claims 1-8, characterized in that, b. the unique identification of a to-be-tested object is scanned through the code scanning module (18), and preset static electricity determination threshold values corresponding to the object are inquired and acquired from a background server through the wireless transmission module (19); c. after positioning and focusing, the host (10) collects test data and utilizes an analog-digital converter to sample and average the received signals multiple times; d. the host (10) compares the collected values with the preset threshold values acquired in step b; when the test result is qualified, PASS is displayed and a short prompt sound is emitted; when the test result is unqualified, NG is displayed and an urgent alarm sound is emitted by the buzzer (20). ​ ​ e.The host (10) uploads data packets containing information such as time stamp, operator ID, measured value and determination result to the background management system in real time through the wireless transmission module (19).

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