Modular circuit board, non-contact switch system, and switch detection method

Abstract

To provide a modularization circuit board, a non-contact type switching system, and a switching detection method.SOLUTION: A non-contact type switching system comprises a plurality of modularization circuit boards. A modularization circuit board comprises: a non-contact type switching group that is for receiving a detection signal of a detection object; and a processing part that is for executing a general procedure. The processing part contains a detection part, and the detection part contains a first common lead wire. In the general procedure, a single substrate detection process and a plurality of substrate detection processes are contained. In the single substrate detection process, a step of proceeding to the plurality of substrate detection processes if the determination result is "Yes" when it is determined whether or not the non-contact type switching that receives the detection signal is only one, and a step of providing a marking potential by the detection part if the determination result is "No" are contained. The plurality of substrate detection processes contain a step of determining whether or not a first linkage potential of the first common lead wire is the marking potential.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a modularized circuit board, a non-contact switch system, and a switch detection method, and more particularly to a modularized circuit board, a non-contact switch system, and a switch detection method, which are provided in a non-contact switch system and include a plurality of modularized circuit boards connected to each other by common lead wires of a detection unit, and which apply the switch detection method to the plurality of modularized circuit boards as a general procedure. [Background technology]

[0002] Non-contact switches are commonly used in various control panels. Because non-contact switches can be triggered to activate a system without contact, multiple non-contact switches may be accidentally triggered due to excessive movement to operate the non-contact switch or a relatively large cross-sectional area of ​​the object.

[0003] Furthermore, according to different requirements (e.g., the number of switches, their positions, the dimensions of the circuit boards, etc.), the control panel is usually constructed by combining multiple circuit boards having the same or similar circuit functions. In the current technology, when a control panel is constructed by combining multiple identical (or similar) circuit boards, each circuit board needs to be adjusted in hardware or firmware (software) so that the controller of the control panel (e.g., a central processing unit, which is mounted on an operation panel different from the above-mentioned circuit boards) can identify the circuit boards and accurately perform the operations corresponding to each circuit board.

[0004] For example, if the firmware (software) of a circuit board is fixed, the circuit board can be distinguished by the voltage signal of the dip switch by artificially moving the dip switch to the corresponding switch position.

[0005] For example, if the circuit board hardware is fixed, the circuit boards can be differentiated by firmware by writing different versions of firmware onto each circuit board.

[0006] To summarize, when the control panel of a non-contact switch system is combined with multiple circuit boards, if the hardware or firmware (software) of the circuit boards is not adjusted, it will be difficult to determine whether the non-contact switch has been accidentally triggered. If the hardware or firmware (software) of the circuit boards is adjusted, the interchangeability between the circuit boards will be low, and it will be necessary to prepare many spare circuit boards for replacement or to rewrite the corresponding firmware (software) to the circuit boards. Summary of the Invention

[0007] For this reason, the present invention provides a modularized circuit board, a non-contact switch system, and a switch detection method. The switch detection method is applicable to a non-contact switch system, which includes multiple modularized circuit boards. A processing unit of the modularized circuit board executes a general procedure, and the processing unit includes a detection unit. The detection unit includes a first common lead, and the general procedure includes a single-board detection process and a multiple-board detection process. In the single-board detection process, the modularized circuit board of the present invention determines whether multiple non-contact switches in the non-contact switch group of the single modularized circuit board itself have been triggered (falsely triggered). If it is determined that the non-contact switch group has been falsely triggered, the detection unit provides a mark signal (for example, the detection unit can mark the occurrence of the false trigger with the mark signal, such as by setting the first interlocking potential of the first common lead to a marking potential). If it is determined that the non-contact switch group has not been falsely triggered, the method proceeds to a multiple-board detection process, in which the first interlocking potential of the first common lead interconnected between multiple processing units is used to determine whether multiple non-contact switches in other modularized circuit boards have been triggered (falsely triggered). As a result, the modularized circuit board of the present invention does not require adjustment of hardware or firmware (software), and the replaceability of the modularized circuit board can be significantly improved.

[0008] The modularized circuit board provided by the present invention includes a non-contact switch group including a plurality of non-contact switches for receiving a detection signal from a detection target, a memory unit for storing a general procedure, and a processing unit connected to the non-contact switch group and the memory unit for executing the general procedure, the processing unit including a detection unit including a first common lead, and the general procedure includes a single-board detection process and a multiple-board detection process. The single-board detection process includes a step of determining whether only one non-contact switch has received the detection signal and, if the determination result is "yes," proceeding to a multiple-board detection process. If the determination result is "no," the detection unit provides a mark signal, the mark signal including a marking potential, and the multiple-board detection process includes a step of determining whether the first interlocking potential of the first common lead is the marking potential.

[0009] In one embodiment of the present invention, in the modularized circuit board, the detection unit has a second common lead, and the single board detection process includes a step of setting the first interlocking potential of the first common lead or the second interlocking potential of the second common lead to a marking potential.

[0010] In one embodiment of the present invention, in the modularized circuit board, the single board detection process includes disabling the non-contact switches.

[0011] In one embodiment of the present invention, for the modularized circuit board, the single board detection process includes the step of enabling a prompt unit.

[0012] In one embodiment of the present invention, in the modular circuit board, the single board detection process includes the step of setting the first interlocking potential of the first common lead to a preset potential.

[0013] In one embodiment of the present invention, in the modularized circuit board, the single board detection process includes a step of setting the first interlocking potential of the first common lead wire or the second interlocking potential of the second common lead wire to a preset potential.

[0014] In one embodiment of the present invention, in the modularized circuit board, the multiple board detection process includes disabling a group of non-contact switches.

[0015] The non-contact switch system provided by the present invention includes a plurality of the modularized circuit boards, the first common lead wires of the plurality of modularized circuit boards being connected to each other, and the main control unit being connected to a plurality of processing units.

[0016] The switch detection method provided by the present invention is applicable to the aforementioned non-contact switch system, and the switch detection method includes a single substrate detection process and a multiple substrate detection process. The single substrate detection process includes a step of determining whether there is only one non-contact switch that has received the detection signal of the detection target, and if the determination result is "yes", proceeding to the multiple substrate detection process. If the determination result is "no", the detection unit provides a mark signal including a marking potential. The multiple substrate detection process includes a step of the processing unit determining whether the first interlocking potential of the first common lead wire is the marking potential.

[0017] In summary, the modularized circuit board, non-contact switch system, and switch detection method of the present invention interconnect multiple modularized circuit boards via a common lead wire of the detection unit, and determine whether the modularized circuit board itself is erroneously triggered in a single board detection process and whether other modularized circuit boards are erroneously triggered in multiple board detection processes. With the above-described structure, the present invention eliminates the need to distinguish between the master and slave relationships of circuit boards when multiple modularized circuit boards are combined and applied, eliminating the need to write different software / firmware for each modularized circuit board. Instead, the same software / firmware can be used to combine and apply multiple circuit boards. As a technical advantage, in a control system that requires multiple circuit boards to form a large-area control panel, such as an elevator control system, customers do not need to update or select software / firmware versions when combining and configuring the circuit boards. The modularized circuit boards of the present invention can be installed and operated as desired. Furthermore, technical advantages include quick replacement and reduced maintenance time during maintenance, significantly reducing the amount of spare circuit board inventory, and improving the interchangeability of modularized circuit boards.

[0018] In order to make the above and other objects, features and advantages of the present invention more clearly understandable, the following embodiments are given in detail with reference to the accompanying drawings. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a block diagram of a non-contact switch system provided by an embodiment of the present invention. [Figure 2] 1 is a schematic diagram of a switch of a floating touch display provided by an embodiment of the present invention; [Figure 3] 2 is a flowchart of a switch detection method (general procedure) provided by an embodiment of the present invention. [Figure 4]1 is a schematic diagram illustrating a non-contact switch system according to an embodiment of the present invention applied to an elevator system. [Figure 5] 1 is a schematic diagram illustrating a non-contact switch system according to an embodiment of the present invention applied to an elevator system. [Figure 6] 1 is a schematic diagram illustrating a non-contact switch system according to an embodiment of the present invention applied to an elevator system. DETAILED DESCRIPTION OF THE INVENTION

[0020] Please refer to FIG. 1, which is a block diagram of a non-contact switch system provided by one embodiment of the present invention.

[0021] In this embodiment, the non-contact switch system of the present invention includes a plurality of modularized circuit boards MB. Each modularized circuit board MB includes a processing unit PU, a non-contact switch group NCSWS, a prompt unit PSU, and a memory unit SU. The processing unit PU includes a detection unit DU, which includes a first common lead wire CP1 and a second common lead wire CP2. The non-contact switch group NCSWS includes a plurality of non-contact switches NCSW (not shown). The processing unit PU is connected to the non-contact switch group NCSWS, the prompt unit PSU, and the memory unit SU, and the first common lead wire CP1 and the second common lead wire CP2 are connected between the plurality of processing units PU.

[0022] In this embodiment, the non-contact switch system of the present invention receives a detection signal from a detection target ST via a non-contact switch group NCSWS. The processing unit PU executes a general procedure program (switch detection method) stored in the memory unit SU, thereby preventing the multiple non-contact switches NCSW from being erroneously triggered. When multiple modular circuit boards MB are combined and arranged, there is no need to modify the hardware or firmware (software) configuration due to circuit board identification issues. (In other words, the dimensions of the circuit board, some components of the circuit board, etc. can be adjusted according to the implementation situation, and can be applied to the technical structure of the present invention as long as no inconsistencies arise.) The general procedure program includes a single-board detection process and a multiple-board detection process. The single-board detection process includes determining whether only one non-contact switch receives the detection signal and, if the determination result is "yes," proceeding to a multiple-board detection process. If the determination result is "no," the detection unit provides a marking signal including a marking potential. The multiple-board detection process includes determining whether the first interlocking potential of the first common lead wire is the marking potential. The non-contact switch system of the present invention can determine, through a single board detection process, that the non-contact switch group NCSWS has been erroneously triggered for the modularized circuit board MB itself, and can determine, through multiple board detection processes, that the non-contact switch group NCSWS has been erroneously triggered for another modularized circuit board MB based on the first interlocking potential of the first common lead wire CP1. This makes it possible to avoid a situation in which multiple non-contact switches NCSW are erroneously triggered in the non-contact switch system, even when multiple modularized circuit boards MB are combined and arranged, without changing the arrangement of hardware or firmware (software).

[0023] In each embodiment of the present invention, components / devices using the same reference numerals can be rearranged and combined and applied to each embodiment as long as the functions of the components / devices are the same as those in other embodiments and there is no contradiction in the matters, steps, and process flows mentioned in each embodiment. The present invention is not limited to the enumerated embodiments.

[0024] To avoid any ambiguity in the definition of nouns, the following provides an explanation of some technical terms used in the embodiments of the present invention.

[0025] In the present invention, the non-contact switch NCSW refers to a device for receiving a detection signal from a detection target ST. For example, the non-contact switch NCSW may include a detection module, which may be a capacitance-type detection module. If the detection module is a capacitance-type detection module, the detection target ST may be a human body, a part of a human body, or an object whose capacitance value detected by the detection module can be changed as desired. The capacitance-type detection module can detect the capacitance value of the human body, and the processing unit PU can send a control signal based on the change in capacitance value to control the non-contact switch group NCSWS.

[0026] For example, the detection module may be an infrared light detection module, which may include a transmitter and a receiver. The transmitter is used to transmit a wireless signal to the detection target ST, and the receiver is used to receive the detection signal. When the detection module is an infrared light detection module, the detection target ST may be a human body, a part of a human body, or an object that reflects the infrared light (i.e., the reflected signal of the wireless signal) emitted from the transmitter for irradiating the infrared light. The receiver of the detection module can receive the infrared light emitted from the transmitter and reflected by the object. In this embodiment, the detection signal is a reflected signal of the wireless signal, and the processing unit PU can transmit a control signal to control the non-contact switch group NCSWS based on the detection signal of the detection target received by the receiver (i.e., the reflected signal of the wireless signal).

[0027] For example, the detection module may be an ultrasonic detection module, which may include a transmitter and a receiver. When the detection module is an ultrasonic detection module, the detection target ST may be a human body, a part of a human body, or an object that reflects an ultrasonic wireless signal (i.e., a reflected signal of the wireless signal) emitted from a transmitter for transmitting an ultrasonic wireless signal. The receiver of the detection module can receive the ultrasonic wireless signal emitted from the transmitter and reflected by the object. The processing unit PU can transmit a control signal based on the detection signal of the detection target (i.e., a reflected signal of the wireless signal) received by the receiver to control the non-contact switch group NCSWS.

[0028] The above examples are merely illustrative embodiments of the non-contact switch NCSW of the present invention. The present invention is not limited to the listed embodiments, and any device that can receive a detection signal of a detection target and control the switch states of the non-contact switch group NCSWS using a processing unit PU can be used as the non-contact switch NCSW of the present invention.

[0029] Referring to FIG. 2, in one embodiment, the non-contact switch NCSW of the non-contact switch group NCSWS is implemented as a switch of a floating touch display. FIG. 2 is a schematic diagram of a switch of a floating touch display provided by one embodiment of the present invention. The switch of the floating touch display includes a floating display module FDM and a floating touch module FTM. The floating display module FDM includes a microlens array MLA, an imaging plate IP, a flat lens Plate, a circuit board PCBA, a light-emitting diode LED, and a connector C. The switch of the floating touch display of this embodiment can receive a detection signal of a detection target ST in a floating touch area FTR by the floating touch module FTM (which includes a sensing module). The floating touch area can include a detection distance and a detection angle. The detection distance is the distance from the sensing surface of the sensing module to the detection target ST and can vary, for example, within a range of 0 to 10 cm. The detection angle is the angle formed by contracting inward from any point on the outer edge of the detection surface of the detection module (e.g., 0 cm) to the detection failure point (i.e., the distance at which it no longer reacts to the detection target ST, e.g., 10 cm), and can vary, for example, within a range from 80 degrees to 45 degrees.

[0030] The non-contact switch control system 1 of the present invention includes a storage unit SU. The storage unit SU is connected to the processing unit PU and refers to a device for storing a general procedure. For example, the storage unit SU may be a non-volatile memory, a memory card, a register, or another device with similar functionality. The listed types of storage devices are merely examples, and the present invention is not limited thereto. Any storage device with similar functionality can be used as the storage unit SU of the present invention. The general procedure is a program common to multiple modularized circuit boards MB and does not necessarily include a program for distinguishing between multiple modularized circuit boards MB. In other words, multiple modularized circuit boards MB can be combined and configured using the same general procedure (firmware / software).

[0031] In this embodiment, the non-contact switch system of the present invention includes a processing unit PU, which is used to execute general procedures and includes a detection unit DU. For example, the processing unit PU may be a single-chip microcontroller unit (MCU), a central processing unit (CPU), or other devices with similar functions. The listed types of processing units are merely examples, and the present invention is not limited thereto. The detection unit DU may be, for example, a logic circuit within the processing unit PU. The detection unit may include a first common lead CP1 and a second common lead CP2, and the processing unit PU may configure potentials for the first common lead CP1 and the second common lead CP2. The preset output potential is referred to as a preset potential in this invention, and the output potential when it is determined that the non-contact switch NCSW has been falsely triggered is referred to as a marking potential. The first interlocking potentials of the multiple first common leads CP1 are interlocked. That is, when any processing unit PU sets the first interlocking potential of any first common lead CP1 to the marking potential, the first interlocking potentials of all first common leads CP1 are interlocked and set to the marking potential. Similarly, the second interlocking potentials of the multiple second common leads CP2 are interlocked. That is, when any processing unit PU sets the second interlocking potential of any second common lead CP2 to the marking potential, the second interlocking potentials of all second common leads CP2 are interlocked and set to the marking potential. The marking potential takes precedence over the preset potential. That is, when all first interlocking potentials or second interlocking potentials are set to the preset potential, the first interlocking potential or second interlocking potential is indicated as the preset potential. When any first interlocking potential or second interlocking potential is set to the marking potential, the first interlocking potential or second interlocking potential is indicated as the marking potential. The preset potential and marking potential are each represented as a logic potential, and the present invention does not limit their voltage ranges.

[0032] In the present invention, "disabling" refers to an operation of causing a component to lose its original function within the system. For example, disabling the non-contact switch group NCSWS refers to an operation of causing the processing unit PU to ignore signals from the non-contact switch group NCSWS, or an operation of the processing unit PU sending a control signal to the non-contact switch group NCSWS to temporarily ignore commands. In one embodiment, the processing unit PU sends a stop command to the transmitter of the non-contact switch group NCSWS to stop transmitting wireless signals, thereby preventing the non-contact switch group NCSWS from receiving reflected signals of the wireless signals (i.e., detection signals from the detection target ST). This disables the non-contact switch group NCSWS and provides the technical effect of preventing erroneous triggering. Note that "disabling" refers to an operation of causing a component to lose its original function within the system (e.g., causing a switch to lose its trigger function), and the present invention is not limited in this respect.

[0033] In this embodiment, the non-contact switch system of the present invention includes a prompt unit PSU for providing operational prompts. For example, if a detection signal of a detection target ST is simultaneously detected within the floating touch areas of multiple non-contact switches NCSW, the processing unit PU can send a command to disable the non-contact switch group NCSWS to prevent it from being erroneously triggered. The operational prompt, for example, is intended to notify the user that the non-contact switch group NCSWS has been disabled. In this embodiment, the prompt unit PSU is an independent device and is independently connected to the processing unit PU. The prompt unit PSU may be a buzzer, a light-emitting diode, a liquid crystal display, or other device. The prompt unit PSU can transmit prompt information (audio information, text information, color information, etc.), such as sound, lighting up different colored light-emitting diodes, or displaying text, to notify the user that multiple non-contact switches NCSW in the non-contact switch system have been erroneously triggered. When the malfunction of the non-contact switch NCSW is resolved (for example, when all the non-contact switches NCSW are not receiving the detection signal of the detection object ST), the non-contact switch system releases the disabled state and returns to the normal operating mode.

[0034] Next, referring to Figure 3, Figure 3 is a flowchart of a switch detection method (general procedure) provided by an embodiment of the present invention, the process flow includes a single substrate detection process (steps S201 to S216) and a multiple substrate detection process (steps S301 to S321), the details of which are described as follows:

[0035] The switch detection method (general procedure) includes the following processes:

[0036] Step S100: The process flow starts and proceeds to step S101.

[0037] Step S101: Determine whether the non-contact switch group NCSWS receives a detection signal from the detection target ST. If the result of the determination is "yes," proceed to step S201, and the general procedure enters the single board detection process. If the result of the determination is "no," return to step S100, and repeat until the non-contact switch group NCSWS receives a detection signal from the detection target ST.

[0038] Step S201: Determine whether only one non-contact switch NCSW receives a detection signal. If the result is "yes," proceed to step S301, and the general procedure enters the multiple board detection process. If the result is "no," this indicates that multiple non-contact switches NCSW are triggered (or erroneously triggered) in the modularized circuit board MB, and proceed to step S211.

[0039] Step S211: The detection unit DU provides a mark signal, and then proceeds to step S212. Step S211 further includes step S2111 and / or step S2112.

[0040] Step S2111: The processing unit PU sets the first interlocking potential of the first common lead CP1 to the marking potential.

[0041] Step S2112: The processing unit PU sets the first interlocking potential of the first common lead CP1 or the second interlocking potential of the second common lead CP2 to a marking potential. By setting the second interlocking potential of the second common lead CP2, the present invention can further reduce the number of commands sent and more quickly determine whether a false trigger has occurred, compared to using only the first interlocking potential of the first common lead CP1.

[0042] Step S212: The processing unit PU disables the non-contact switch group NCSWS, and proceeds to step S213.

[0043] Step S213: The processing unit PU enables the prompt unit PSU, and then proceeds to step S214. The processing unit PU can enable the prompt unit PSU to inform the user that the non-contact switch system is currently in an inactive state.

[0044] Step S214: The processing unit PU determines whether the plurality of non-contact switches NCSW have received a detection signal. If the determination result is "Yes", it indicates that the erroneous triggering of the non-contact switches NCSW has not yet been resolved, and the process returns to step S212 at this point. If the determination result is "No", it indicates that the erroneous triggering of the non-contact switches NCSW has already been resolved, and the process proceeds to step S215.

[0045] Step S215: The processing unit PU sets the first interlocking potential of the first common lead CP1 to a preset potential, and then proceeds to step S216. Step S215 may further include step S2151.

[0046] Step S2151: The first interlocking potential of the first common lead wire CP1 or the second interlocking potential of the second common lead wire CP2 is set to a preset potential.

[0047] Step S216: The processing unit PU disables the prompt unit PSU, and returns to step S100.

[0048] Step S301: The processing unit PU determines whether the interlocking potential of the first common lead wire CP1 is the marking potential. If the determination result is "Yes", it indicates that multiple non-contact switches NCSW have been triggered (falsely triggered) in another modularized circuit board MB, and proceeds to step S321. If the determination result is "No", it indicates that multiple non-contact switches NCSW have not been falsely triggered in another modularized circuit board MB. Step S301 may further include step S3011.

[0049] Step S3011: The processing unit PU determines whether the first interlocking potential of the first common lead wire CP1 and the second interlocking potential of the second common lead wire CP2 are marking potentials.

[0050] Step S311: The processing unit PU performs a corresponding operation based on the switch signal of the triggered non-contact switch NCSW, and then returns to step S100. Since the modularized circuit board MB is not erroneously triggered compared to other modularized circuit boards MB, the processing unit PU can perform a corresponding operation based on the switch signal (command information) of the triggered non-contact switch NCSW.

[0051] Step S321: Disable the non-contact switch group NCSWS, and return to step S100. Because it is erroneously triggered on another modularized circuit board MB, the processing unit PU disables the non-contact switch group NCSWS, and can send the corresponding switch signal after the erroneously triggered state is resolved.

[0052] 4 to 6, which are schematic diagrams illustrating the application of a non-contact switch system in an elevator system according to one embodiment of the present invention.

[0053] FIG. 4 shows an elevator system control panel. Referring to FIG. 5, the control panel is composed of three modularized circuit boards MB, each with slightly different circuit board sizes and component layouts. Based on the above embodiment of the present invention, in this embodiment, two different spare circuit boards are provided for the modularized circuit board MB. By simply writing the same firmware (software) to the modularized circuit boards MB, even if a detection target ST with a large cross-sectional area erroneously triggers multiple non-contact switches NCSW simultaneously, as shown in FIG. 6, the non-contact switch system can execute the switch detection method (general procedure) of FIG. 3, thereby preventing multiple non-contact switches NCSW from being erroneously triggered within the non-contact switch system.

[0054] In summary, the modularized circuit board, non-contact switch system, and switch detection method of the present invention interconnect multiple processing units via a common lead wire of the detection unit, and determine whether the modularized circuit board itself is erroneously triggered in a single-board detection process, and whether other modularized circuit boards are erroneously triggered in a multiple-board detection process. Due to the above-described structure, the present invention eliminates the need to distinguish between the master and slave relationships of multiple modularized circuit boards when combining and applying multiple modularized circuit boards, and eliminates the need to write different software / firmware for each modularized circuit board. The same software / firmware can be used to configure multiple circuit boards in a corresponding combination, thereby achieving technical effects such as quick replacement and reduced maintenance time, reduced inventory of spare circuit boards, and increased interchangeability between modularized circuit boards.

[0055] Although the present invention has been disclosed using examples, the present invention is not limited thereto. Those skilled in the art may make some modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention is limited by the appended claims. [Explanation of symbols]

[0056] MB: Modular circuit board NCSWS: Non-contact switch group PU: Processing unit SU: Storage section PSU: Prompt Unit DU: Detection unit CP1: 1st common lead wire CP2: Second common lead ST: Detection target FDM: Floating Display Module FTM: Floating Touch Module FTR: Floating Touch Area FI: Floating Image MLA: Microlens array IP: Imaging plate Plate: Flat lens PCBA: Circuit Board C: Connector LED: Light-emitting diode NCSW: Non-contact switch S100~S101: Step S201~S216: Step S301~S321: Step

Claims

1. A contactless switch system including a plurality of modularized circuit boards, Each of the plurality of modularized circuit boards includes: a non-contact switch group including a plurality of non-contact switches for receiving a detection signal of the detection target; a storage unit for storing a general procedure; a processing unit connected to the non-contact switch group and the memory unit for executing the general procedure, the processing unit including a detection unit including a first common lead; The general procedure includes a single substrate detection process and a multiple substrate detection process; the first common lead wires of the plurality of modularized circuit boards are connected to each other; The single substrate detection process comprises: determining whether the non-contact switch that received the detection signal is only one; If the determination result is "yes", proceed to the multiple substrate detection process; If the determination result is "No", the detection unit provides a mark signal including a first interlocking potential of the first common lead wire as a marking potential. including the steps the plurality of substrate detection processes, determining whether the first interlocking potential of the first common lead is the marking potential; When it is determined that the non-contact switch is erroneously triggered, the output potential of the first interlocking potential of the first common lead wire is the marking potential. A non-contact switch system.

2. the detection portion includes a second common lead; 2. The contactless switch system of claim 1, wherein the single substrate detection process includes a step of setting the first interlocking potential of the first common lead wire or the second interlocking potential of the second common lead wire to the marking potential.

3. 2. The contactless switch system of claim 1, wherein the single substrate detection process includes disabling the contactless switches.

4. 4. The contactless switch system of claim 3, wherein the single board detection process includes the step of enabling a prompt unit.

5. 2. The contactless switch system of claim 1, wherein the single substrate detection process includes placing the first interlocking potential of the first common lead at a preset potential.

6. 3. The contactless switch system of claim 2, wherein the single substrate detection process includes placing the first interlocking potential of the first common lead or the second interlocking potential of the second common lead at a preset potential.

7. 2. The contactless switch system of claim 1, wherein the plurality of substrate detection process includes disabling the contactless switches.

8. A switch detection method applied to the non-contact switch system of claim 1, wherein the non-contact switch system includes a plurality of modularized circuit boards, each of the plurality of modularized circuit boards includes a group of non-contact switches and a processing unit, the processing unit includes a detection unit, the detection unit includes a first common lead wire, the plurality of modularized circuit boards are connected to each other via the first common lead wire, and the method for preventing erroneous operation includes a single board detection process and a plurality of board detection processes, The single substrate detection process comprises: The processing unit determines whether the non-contact switch that receives the detection signal of the detection target is only one, and if the determination result is "yes," proceeds to a multiple substrate detection process; If the determination result is "No", the detection unit provides a mark signal including a marking potential; the plurality of substrate detection processes, The switch detection method includes a step in which the processing unit determines whether a first interlocking potential of the first common lead is the marking potential.

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