An adaptive channel station monitor
By automatically identifying product categories and selecting test modules through the adaptive channel recognition module, the idle problem caused by fixed channels of the workstation monitoring instrument is solved, achieving efficient and flexible monitoring and reducing implementation complexity and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU TA&A ULTRA CLEAN TECH CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-02
AI Technical Summary
The existing workstation monitoring instruments have fixed channel settings that cannot be flexibly adjusted, resulting in insufficient channels for those with many monitoring objects and idle channels for those with few monitoring objects. Furthermore, replacement is costly and complex.
The workstation monitoring instrument with adaptive channels automatically identifies product categories through the channel identification module and selects either a high-resistance test module or a low-resistance test module for monitoring, thereby achieving adaptive switching of channels, avoiding channel idleness, and reducing the frequency of hardware module replacement.
It improves monitoring efficiency, reduces the complexity and cost of on-site implementation, and allows for flexible adjustment of monitoring targets according to actual needs, adapting to changing production environments.
Smart Images
Figure CN224317710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic equipment protection technology, and in particular to an adaptive channel workstation monitoring instrument. Background Technology
[0002] In industrial production, workstation monitoring instruments are used to ensure operational safety and product quality. The main monitoring targets include wrist strap grounding, table mat grounding, machine tool grounding, and soldering iron / screwdriver grounding. Existing monitoring instruments typically have a fixed number of channels, each dedicated to monitoring a specific type of grounding status. However, this fixed channel setup has the following problems: First, at different production stages, the number of some monitoring targets may exceed that of others, resulting in channels with more monitoring targets being insufficient, while some channels with fewer monitoring targets are idle. Second, the fixed channel setup cannot be flexibly adjusted according to actual needs, reducing monitoring efficiency. Existing technologies typically address these problems using two methods: the first method allows certain channels to switch between different monitoring targets to improve channel utilization; the second method integrates different functional modules into the workstation monitoring instrument to achieve multi-purpose monitoring. The first method has the disadvantage that it can only switch between set monitoring targets for certain channels, not all channels; the second method has the disadvantages of complex on-site implementation and high replacement costs. Therefore, improvements to the control methods of existing workstation monitoring instruments are needed. Utility Model Content
[0003] The purpose of this invention is to solve the problems of the first type of workstation monitoring instrument in the prior art, which can only switch between the monitoring objects set for certain channels and cannot achieve this switching for all channels, and the second type of workstation monitoring instrument, which is complicated to implement on site and has high replacement costs. The invention provides a workstation monitoring instrument with adaptive channels.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] An adaptive channel workstation monitor includes a main body with an external product interface. The main body contains a controller, a high-resistance test module, a low-resistance test module, and a switching circuit. The external product interface and the switching circuit are electrically connected to the controller. The controller has a channel identification module for identifying the type of product connected to the external product interface. The high-resistance and low-resistance test modules monitor the ground resistance of the connected product. The switching circuit selects whether to use the high-resistance or low-resistance test module to monitor the ground resistance of the product based on the identified product type.
[0006] In the above solution, the external interface of the product includes several of the following: wrist strap grounding module, equipment grounding module, table mat grounding module, and soldering iron / electric screwdriver module.
[0007] In the above scheme, the channel identification module includes multiple sets of channel connection ports set on the controller. Each set of channel connection ports includes three write pins. The controller determines the product category connected to the external interface based on the signals input by each write pin.
[0008] In the above scheme, the switching circuit includes a circuit switching chip, which is provided with signal input interfaces and corresponding output interfaces corresponding to different channels.
[0009] It should be noted that the channel identification module built into the controller in this utility model determines the type of product connected to the external interface based on the duration of the high and low level of the pin access signal corresponding to different channels. This determination method requires a corresponding program to be built into the controller, but the program only needs to determine the duration of the high and low level, and existing determination software can be used. Therefore, this utility model does not involve the improvement of the program method.
[0010] This invention has the following advantages: The adaptive channel workstation monitor automatically identifies the interface type of the products connected to the channel and automatically identifies the product type. It can also adaptively monitor the products using either a high-resistance test module or a low-resistance test module, effectively avoiding channel idleness and improving monitoring efficiency. It eliminates the need for frequent hardware module replacements, reducing the complexity and cost of on-site implementation. The monitor can flexibly adjust the monitoring objects according to actual production needs, adapting to changing production environments. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the adaptive channel workstation monitoring instrument of this utility model.
[0012] Figure 2 This is the channel identification module of this utility model.
[0013] Figure 3 This is the switching circuit for the high-resistance test module and the low-resistance test module of this utility model.
[0014] Figure 4 This is the circuit diagram of the high-resistance testing module of this utility model.
[0015] Figure 5 This is a circuit diagram of the low-resistance test module of this utility model.
[0016] Figure 6 The interface hardware circuit for the first product to be connected.
[0017] Figure 7 The interface hardware circuit for the second type of product to be connected.
[0018] Figure 8 The interface hardware circuit for the third type of product to be connected.
[0019] The attached diagram is labeled as follows: Controller 1, External interface of product 2, Channel identification module 3, Switching circuit 4, High resistance test module 5, Low resistance test module 6. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below through embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0021] The adaptive channel workstation monitoring instrument of this utility model includes a main body, on which an external interface 2 is provided, and a controller 1, a high resistance test module 5, a low resistance test module 6 and a switching circuit 4 are provided inside the main body.
[0022] External interface 2 of the product may include a wrist strap grounding module, an equipment grounding module, and a table mat grounding module; the corresponding hardware circuitry is as follows: Figures 6-8 As shown, different interface circuits have different grounding pins, such as... Figure 6 As shown, the grounding pin of the wristband grounding module is pin 7, as... Figure 7 As shown, the grounding pin of the table mat grounding module is pin 5, and a 10K resistor is connected to pin 5, as follows. Figure 8 As shown, the grounding pin of the equipment grounding module is pin 2, and a 10K resistor is connected to pin 2.
[0023] Controller 1 is used to automatically identify the interface type of external products connected to each channel, automatically select test modules, and automatically record data.
[0024] A channel identification module 3 is provided on the controller 1. The channel identification module 3 is used to identify the type of product connected to the external interface of the product. The channel identification module 3 includes multiple sets of channel connection ports on the controller. Each set of channel connection ports includes three write pins. The controller 1 determines the type of product connected to the external interface 2 of the product based on the signals input to each write pin.
[0025] Controller 1 can adopt Figure 2The control chip shown is 64 pins. Four channels are connected to these pins, each channel consisting of three write pins: Channel 1 includes WR1_1, WR1_2, and WAG1; Channel 2 includes WR2_1, WR2_2, and WAG2; Channel 3 includes WR3_1, WR3_2, and WAG3; and Channel 4 includes WR4_1, WR4_2, and WAG4. Each channel also has corresponding power and ground terminals. The controller determines the product category connected to the external interface based on the duration of the high and low levels of the signals input to the three write pins of the four channels.
[0026] The switching circuit 4 includes a circuit switching chip. The switching circuit 4 is electrically connected to the controller 1. The circuit switching chip is provided with signal input interfaces corresponding to different channels, for example, Figure 2 The WR1, WR2, WR3, WR4, and OP1 pins shown are input interfaces, while the S0, S1, and S2 pins are output interfaces. The signals output from the S0, S1, and S2 pins, through changes in their high and low levels, can be used with existing switching circuitry to switch between the high-impedance test module 5 and the low-impedance test module 6. Figure 4 and Figure 5 The switching circuit is not shown, but this does not affect the understanding of the present invention by those skilled in the art.
[0027] High-resistance test module 5 and low-resistance test module 6 are used to monitor the resistance to ground of the connected products. High-resistance test module 5 and low-resistance test module 6 can use existing test circuits, or they can use... Figure 4 The high-resistance test module shown and Figure 5 The low-resistance test module is shown. The high-resistance or low-resistance test module can detect the ground resistance of the connected product. The controller can read the test results and save the test data in the controller's memory.
[0028] The adaptive channel workstation monitoring instrument control method of this utility model includes the following steps:
[0029] S1. Various external product interfaces are provided on each channel of the monitor to connect to different types of objects being monitored; these external product interfaces may include a wrist strap grounding module, an equipment grounding module, and a table mat grounding module; the corresponding hardware circuitry is as follows: Figures 6-8 As shown, different interface circuits have different grounding pins, such as... Figure 6 As shown, the grounding pin of the wristband grounding module is pin 7, as... Figure 7As shown, the grounding pin of the table mat grounding module is pin 5, and a 10K resistor is connected to pin 5, as follows. Figure 8 As shown, the grounding pin of the equipment grounding module is pin 2, and a 10K resistor is connected to pin 2.
[0030] S2. The controller of the monitor has a built-in channel identification module. When a product is connected to the external interface, it automatically identifies the product category based on the interface signal. Specifically, the channel identification module can determine the product category connected to the external interface based on the duration of the high and low levels of the interface signal. Figure 2 As shown, the product category connected to the external interface can be determined by observing the duration of the high and low signals input from the three write pins of channel 1 (including WR1_1, WR1_2, and WAG1), channel 2 (including WR2_1, WR2_2, and WAG2), channel 3 (including WR3_1, WR3_2, and WAG3), or channel 4 (including WR4_1, WR4_2, and WAG4). The corresponding signal is then output to the test channel circuit.
[0031] S3. The monitor integrates a high-resistance test module and a low-resistance test module. Based on the product category detected by the channel identification module, it... Figure 3 The switching circuit shown automatically selects whether to use a high-resistance test module or a low-resistance test module to monitor the product. The circuit switching chip of the switching circuit determines whether to use a high-resistance test module or a low-resistance test module to test the product based on the signals transmitted from the channel identification chip of the channel identification module received by the WR1, WR2, WR3 or WR4 pins, and causes the S0, S1 and S2 of the circuit switching chip to output corresponding signals, so that the product connected to the external interface is connected to the corresponding high-resistance test module or low-resistance test module.
[0032] The high-impedance test module can be used as follows: Figure 4 The circuit diagram shown indicates that the low-impedance test module can be used. Figure 5 The circuit diagram shown; the high-resistance test module is used to test the resistance to ground of the wristband module and the table mat, thereby monitoring their electrostatic discharge performance; the low-resistance test module is used to test the resistance to ground of the equipment grounding, thereby monitoring its electrostatic discharge performance. During testing, it is only necessary to... Figure 4 or Figure 5 The controller can automatically read and store the test data to detect the ground resistance of the product connected to the J1 interface.
[0033] Application Example 1
[0034] If a wristband is connected to a channel, the wristband grounding module interface is used. After the wristband is connected, the monitor receives a low-level signal from the product interface. The channel identification module analyzes the signal and determines that the connected product is a wristband based on the duration of the low level. Since wristband monitoring requires the use of a high-resistance test module, the automatic control software in the monitor selects the corresponding test module to test the wristband, obtains the wristband's resistance parameter, and automatically saves the parameter.
[0035] Application Example 2
[0036] If a machine is connected to a certain channel, the equipment grounding module interface is used. After the machine is connected, the monitor receives a low-level signal from the product interface. The channel identification module analyzes the signal and determines that the connected product is a machine based on the duration of the low level. Since the monitoring of the machine requires the use of a low-resistance test module, the automatic control software in the monitor selects the corresponding test module to test the machine, obtains the resistance parameter of the machine, and automatically saves the parameter.
[0037] Application Example 3
[0038] If a mat is connected to a channel, the mat grounding module interface is used. After the mat is connected, the monitor receives a low-level signal from the product interface. The channel identification module analyzes the signal and determines that the connected product is a mat based on the duration of the low level. Since mat monitoring requires the use of a high-resistance test module, the automatic control software in the monitor selects the corresponding test module to test the mat, obtains the mat's resistance parameter, and automatically saves the parameter.
[0039] Application Example 4
[0040] If a soldering iron is connected to a channel, the device grounding module interface is used. After the soldering iron is connected, the monitor receives a low-level signal from the product interface. The channel identification module analyzes the signal and determines that the connected product is a soldering iron based on the duration of the low level. Since the soldering iron monitoring requires the use of a low-resistance test module, the automatic control software in the monitor selects the corresponding test module to test the soldering iron, obtains the soldering iron's resistance to ground parameter, and automatically saves the parameter.
[0041] Through the four application examples above, it can be seen that the adaptive channel workstation monitoring control method of this utility model can automatically identify the interface category used by the products connected to the channel, automatically identify the product type, and can use high-resistance test modules or low-resistance test modules to adaptively monitor the products, which can effectively avoid channel idleness and improve monitoring efficiency; it does not require frequent replacement of hardware modules, which can reduce the complexity and cost of on-site implementation; the monitoring instrument can flexibly adjust the monitoring object according to actual production needs and adapt to the changing production environment.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A workstation monitoring instrument with an adaptive channel, characterized in that, The device includes a main body with an external product interface. Inside the main body are a controller, a high-resistance test module, a low-resistance test module, and a switching circuit. The external product interface and the switching circuit are electrically connected to the controller. The controller has a channel identification module, which is used to identify the type of product connected to the external product interface. The high-resistance and low-resistance test modules are used to monitor the ground resistance of the connected product. The switching circuit is used to select whether to monitor the ground resistance of the product through the high-resistance or low-resistance test module based on the identified product type.
2. The adaptive channel workstation monitoring instrument according to claim 1, characterized in that: The product's external interfaces include several types of wrist strap grounding modules, equipment grounding modules, table mat grounding modules, and soldering iron / electric screwdriver modules.
3. The adaptive channel workstation monitoring instrument according to claim 1, characterized in that: The channel identification module includes multiple sets of channel connection ports on the controller. Each set of channel connection ports includes three write pins. The controller determines the product category connected to the external interface based on the signals input to each write pin.
4. The adaptive channel workstation monitoring instrument according to claim 1, characterized in that: The switching circuit includes a circuit switching chip, which has signal input interfaces and corresponding output interfaces for different channels.