Modularization circuit board, non-contact type switching system, and switching 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 with a plurality of modularized circuit boards in a non-contact switch system, the plurality of modularized circuit boards being connected to each other by a common lead wire 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. Since 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 the relatively large cross-sectional area of ​​the object during use.

[0003] Furthermore, according to different requirements (e.g., the number of switches, their arrangement positions, the dimensions of the circuit boards, etc.), the control panel is usually constructed by combining multiple circuit boards with the same or similar circuit functions. In the current technology, when the 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 respectively.

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

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

[0006] To sum up, when the control panel of the 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 is triggered by mistake. If the hardware or firmware (software) of the circuit boards is adjusted, the interchangeability between the circuit boards is low, and it is 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 applied to a non-contact switch system, which includes a plurality of 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 a plurality of non-contact switches are triggered (falsely triggered) in a non-contact switch group of the single modularized circuit board itself, and if it is determined that the non-contact switch group is falsely triggered, the detection unit provides a mark signal (for example, the detection unit can mark the occurrence of false triggering by the mark signal, such as placing the first interlocking potential of the first common lead at a marking potential). If it is determined that the non-contact switch group is not falsely triggered, the process proceeds to a multiple board detection process, and in the multiple board detection process, it determines whether a plurality of non-contact switches in another modularized circuit board are triggered (falsely triggered) using the first interlocking potential of the first common lead interconnected between the plurality of processing units. 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 of 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, the 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 there is only one non-contact switch that receives a detection signal, and if the determination result is "yes", proceeding to the multiple board detection process, and if the determination result is "no", the detection unit provides a mark signal, and the mark signal includes 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 placing the first interlocking potential of the first common lead or the second interlocking potential of the second common lead at 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 validating 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 placing the first interlocking potential of the first common lead at 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 placing a first interlocking potential of the first common lead or a second interlocking potential of the second common lead at 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 step of including 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 a main control unit being connected to a plurality of processing units.

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

[0017] In summary, the modularized circuit board, non-contact switch system, and switch detection method of the present invention connect multiple modularized circuit boards to each other through 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. With the above-mentioned structure, the present invention does not require the distinction of the master-slave relationship of circuit boards when multiple modularized circuit boards are combined and applied, and does not require the writing of different software / firmware for each modularized circuit board individually, and can accommodate the combined application of multiple circuit boards with the same software / firmware. As a technical effect, in a control system that requires multiple circuit boards to configure a large-area control panel, such as an elevator control system, the customer does not need to update / select the software / firmware version when combining and arranging the circuit boards, and can arbitrarily install and operate the modularized circuit board of the present invention, and can also achieve the technical effect of quick replacement and shortening the maintenance time during maintenance, greatly reducing the amount of spare circuit board inventory, and improving the interchangeability between modularized circuit boards.

[0018] In order to make the above and other objects, features and advantages of the present invention more clearly comprehensible, the following detailed description is given with reference to the accompanying drawings in which: [Brief description of the drawings]

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

[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 CP1 and a second common lead 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 CP1 is connected to each other between the plurality of processing units PU, and the second common lead CP2 is connected to each other between the plurality of processing units PU.

[0022] In this embodiment, the non-contact switch system of the present invention receives a detection signal of the detection target ST through the non-contact switch group NCSWS, and the processing unit PU executes a general procedure program (switch detection method) stored in the memory unit SU, thereby avoiding the false triggering of multiple non-contact switches NCSW, and eliminating the need to change the installation of hardware or firmware (software) due to the identification problem of the circuit board when combining and arranging multiple modularized circuit boards MB (that is, 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 contradiction occurs). The general procedure program includes a single board detection process and a multiple board detection process. The single board detection process includes a step of determining whether there is only one non-contact switch that 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 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 wire is a marking potential. The non-contact switch system of the present invention can determine, in 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, in a multiple board detection process, 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 the hardware or firmware (software).

[0023] In each embodiment of the present invention, the components / devices using the same reference numerals can be rearranged and combined to be 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 embodiments listed.

[0024] In order 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 of a detection object ST. For example, the non-contact switch NCSW may include a detection module, and the detection module may be a capacitance type detection module. When the detection module is a capacitance type detection module, the detection object ST may be a human body, a part of a human body, or an object that can arbitrarily change the capacitance value detected by the detection module. The capacitance type detection module can detect the capacitance value of the human body, and the processing unit PU can transmit a control signal based on the change in the capacitance value to control the non-contact switch group NCSWS.

[0026] For example, the detection module may be an infrared light detection module, and the detection module 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 infrared light (i.e., a reflected signal of a wireless signal) emitted from a transmitter for irradiating 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 a wireless signal, and the processing unit PU can transmit a control signal based on the detection signal of the detection target received by the receiver (i.e., a reflected signal of a wireless signal) to control the non-contact switch group NCSWS.

[0027] For example, the detection module may be an ultrasonic detection module, and the detection module may include a transmitting unit and a receiving unit. 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 a wireless signal) emitted from a transmitting unit for transmitting an ultrasonic wireless signal. The receiving unit of the detection module can receive the ultrasonic wireless signal emitted from the transmitting unit and reflected by the object. The processing unit PU can transmit a control signal based on the detection signal of the detection target received by the receiving unit (i.e., a reflected signal of a wireless signal) to control the non-contact switch group NCSWS.

[0028] The above examples are merely illustrative examples of the non-contact switch NCSW of the present invention. The present invention is not limited to the listed examples, and any device that can receive a detection signal of a detection target and control the switch state of the non-contact switch group NCSWS with 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, and 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 a floating touch module FTM (the floating touch module FTM includes a detection module). The floating touch area can include a detection distance and a detection angle. The detection distance is the distance from the detection surface of the detection module to the detection target ST, and can vary within a range of 0 to 10 cm, for example. 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 other device having a similar function. The listed types of storage devices are merely examples, and the present invention is not limited thereto, and all storage devices having similar functions can be used as the storage unit SU of the present invention. The general procedure is a common program among multiple modularized circuit boards MB, and does not need to include a program for distinguishing multiple modularized circuit boards MB. In other words, multiple modularized circuit boards MB can be combined and arranged using completely the same general procedure (firmware / software).

[0031] In this embodiment, the non-contact switch system of the present invention comprises a processing unit PU, which is used to execute a general procedure and includes a detection unit DU. For example, the processing unit PU may be a one-chip microcomputer (MCU, MicroController Unit), a central processing unit (CPU, Central Processing Unit), etc., or may be other devices having 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 part of a logic circuit in 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 perform potential configuration for the first common lead CP1 and the second common lead CP2. The preset output potential is referred to as a preset potential in the present invention, and the output potential when it is determined that the non-contact switch NCSW is erroneously 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 places the first interlocking potential of any first common lead CP1 at the marking potential, the first interlocking potentials of all the first common leads CP1 are interlocked and placed at the marking potential. Similarly, the second interlocking potentials of the multiple second common leads CP2 are interlocked, that is, when any processing unit PU places the second interlocking potential of any second common lead CP2 at the marking potential, the second interlocking potentials of all the second common leads CP2 are interlocked and placed at the marking potential. The marking potential has priority over the preset potential, that is, when all the first interlocking potentials or the second interlocking potentials are placed at the preset potential, the first interlocking potential or the second interlocking potential is shown as the preset potential. When any first interlocking potential or the second interlocking potential is placed at the marking potential, the first interlocking potential or the second interlocking potential is shown as the marking potential. The preset potential and the marking potential are each represented as a logic potential, and the present invention does not limit their voltage ranges.

[0032] In the present invention, "disable" refers to an operation of causing a member to lose a function that it originally had in the system. For example, disabling the non-contact switch group NCSWS refers to an operation of making the processing unit PU ignore a signal from the non-contact switch group NCSWS, or an operation of the processing unit PU sending a control signal to make the non-contact switch group NCSWS temporarily ignore a command. In one embodiment, the processing unit PU sends a stop command to stop the transmission of a wireless signal to the transmitting unit of the non-contact switch group NCSWS, thereby making it impossible for the non-contact switch group NCSWS to receive a reflected signal of the wireless signal (i.e., a detection signal of the detection target ST), thereby making it possible to disable the non-contact switch group NCSWS and obtain a technical effect of avoiding erroneous triggering. Note that "disable" refers to an operation of causing a member to lose a function that it originally had in the system (for example, causing a switch to lose a trigger function), and the present invention does not limit the embodiment in this respect.

[0033] In this embodiment, the non-contact switch system of the present invention includes a prompt unit PSU for providing an operation prompt. For example, when a detection signal of a detection target ST is detected simultaneously within the floating touch area of ​​multiple non-contact switches NCSW, the processing unit PU can send a command to disable the non-contact switch group NCSWS so that it is not erroneously triggered. The operation prompt is, for example, to inform the user that the non-contact switch group NCSWS is 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 device such as a buzzer, a light-emitting diode, or a liquid crystal display device. The prompt unit PSU can transmit prompt information (such as voice information, text information, color information, etc.), and inform the user that multiple non-contact switches NCSW of the non-contact switch system are in a state of being erroneously triggered by such methods as making a sound, turning on light-emitting diodes of different colors, and displaying text. When the malfunction of the non-contact switch NCSW is resolved (for example, when all of the non-contact switches NCSW are not receiving a detection signal from the detection target ST), the non-contact switch system releases the disabled state and returns to the normal operating mode.

[0034] Next, refer to Fig. 3, which is a flow chart of a switch detection method (general procedure) provided by an embodiment of the present invention, in which the process flow includes a single board detection process (steps S201-S216) and a multiple board detection process (steps S301-S321). The detailed description is 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 of 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 of the detection target ST.

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

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

[0040] In 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 sending of commands and more quickly determine whether a false trigger has occurred than if only the first interlocking potential of the first common lead CP1 was used.

[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 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 judges whether the non-contact switches NCSW have received a detection signal. If the judgement result is "Yes", it indicates that the non-contact switches NCSW have not yet been cleared from being erroneously triggered, and the process returns to step S212 at this point. If the judgement result is "No", it indicates that the non-contact switches NCSW have already been cleared from being erroneously triggered, 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 judges whether the interlocking potential of the first common lead wire CP1 is a marking potential. If the judgment result is "Yes", it indicates that multiple non-contact switches NCSW are triggered (falsely triggered) in the other modularized circuit board MB, and proceeds to step S321. If the judgment result is "No", it indicates that multiple non-contact switches NCSW are not falsely triggered in the other modularized circuit board MB. Step S301 may further include step S3011.

[0049] In 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 executes 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 and the other modularized circuit boards MB are not erroneously triggered, the processing unit PU can execute 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 the corresponding switch signal can be sent after the erroneously triggered state is eliminated.

[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] In Fig. 4, an operation panel of an elevator system is shown. Referring to Fig. 5, the operation panel is composed of three modularized circuit boards MB, each of which has a slightly different circuit board size and component arrangement. Based on the above embodiment of the present invention, in this embodiment, the modularized circuit board MB is provided with two different spare circuit boards, and the same firmware (software) is written into the modularized circuit board MB. Even if a detection target ST with a large cross-sectional area erroneously triggers multiple non-contact switches NCSW at the same time as shown in Fig. 6, the non-contact switch system can execute the switch detection method (general procedure) of Fig. 3 to avoid multiple non-contact switches NCSW being erroneously triggered in the non-contact switch system.

[0054] In summary, the modularized circuit board, non-contact switch system and switch detection method of the present invention allow multiple processing units to be connected to each other through 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. With the above-mentioned structure, the present invention does not require distinction between the master and slave relationships of circuit boards when multiple modularized circuit boards are combined and applied, and does not require writing different software / firmware for each modularized circuit board individually, but allows multiple circuit boards to be combined and configured to correspond with the same software / firmware, thereby achieving technical effects such as quick replacement, shortening maintenance time, reducing the amount of spare circuit board inventory, and increasing the interchangeability between modularized circuit boards.

[0055] The present invention has been disclosed above using examples, but the present invention is not limited thereto. Those skilled in the art can make some modifications without departing from the spirit 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 switches PU: Processing unit SU: Storage section PSU: Prompt Unit DU: Detection unit CP1: First common lead 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 non-contact switch group including a plurality of non-contact switches for receiving a detection signal of a 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 single substrate detection process comprises: determining whether the non-contact switch receives the detection signal from only one non-contact switch, and if the determination result is "yes", proceeding to the multiple board detection process; If the result of the determination is "no", the detection unit provides a mark signal including a marking potential; The plurality of substrate detection processes include:

2. A modular circuit board comprising: a step of determining whether a first interlocking potential of the first common lead wire is the marking potential.

2. the detection portion includes a second common lead; 2. The modularized circuit board of claim 1, wherein 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 the marking potential.

3. 2. The modular circuit board of claim 1, wherein the single board detection process includes disabling the non-contact switches.

4. 4. The modular circuit board of claim 3, wherein the single board detection process includes a step of enabling a prompt unit.

5. 2. The modular circuit board of claim 1, wherein the single board detection process includes placing the first interlocking potential of the first common lead at a preset potential.

6. 3. The modularized circuit board of claim 2, wherein the single board detection process includes a step of 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 modular circuit board of claim 1, wherein the plurality of board detection processes includes disabling the non-contact switches.

8. A non-contact switch system comprising a plurality of modularized circuit boards according to claim 1, wherein a plurality of the first common lead wires are connected to each other.

9. A switch detection method applied to a non-contact switch system, the non-contact switch system including a plurality of modularized circuit boards, each of the plurality of modularized circuit boards including a non-contact switch group and a processing unit, the processing unit including a detection unit, the detection unit including a first common lead wire, the plurality of modularized circuit boards being connected to each other via the first common lead wire, and a method for preventing erroneous operation including a single board detection process and a multiple board detection process; The single substrate detection process comprises: The processing unit judges whether the non-contact switch that receives the detection signal of the detection target is only one, and if the judgment result is "yes", proceeds to a multiple board detection process; If the result of the determination is "no", the detection unit provides a mark signal including a marking potential; The plurality of substrate detection processes include: The method of claim 1, further comprising a step of the processor determining whether a first interlocking potential of the first common lead is the marking potential.

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