Contactless Switch Control System
The contactless switch control system addresses false triggering by designating a first switch as active and disabling others, enhancing efficiency and preventing simultaneous activation in non-contact switch systems.
Patent Information
- Application Number
- JP2023209522
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-12-23
- Filing Date
- 2023-12-12
- Publication Date
- 2025-11-10
- Estimated Expiration
- 2043-12-12
AI Technical Summary
Non-contact switches are prone to false triggering due to the large cross-sectional area of objects, leading to inefficient operation and accidental activation of multiple switches, especially in crowded environments like elevator control panels.
A contactless switch control system that designates a first switch as active and disables subsequent switches if they receive detection signals within a short period, using a processing unit to determine and manage detection signals from multiple switches.
Prevents multiple non-contact switches from erroneously triggering by ensuring only the first activated switch functions, improving system efficiency and preventing simultaneous activation.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a non-contact switch control system, and more particularly to a non-contact switch control system for preventing false triggering of a non-contact switch by an object having a relatively large cross-sectional area. [Background technology]
[0002] Non-contact switches are often used in various control panels. Non-contact switches can trigger the switch to start the system without touching it, which can avoid virus infection caused by touching the switch.
[0003] However, although contactless switches can reduce the risk of spreading viruses, their non-contact nature means that multiple contactless switches may be accidentally triggered during use due to excessive movement required to operate the contactless switches or the relatively large cross-sectional area of the object.
[0004] For example, when a contactless switch is applied to an elevator control panel, multiple contactless switches may be accidentally triggered by luggage (such as a handbag, backpack, or furniture) carried by elevator passengers. Also, multiple contactless switches may be accidentally triggered by the action of lifting one's arm to press a contactless switch (i.e., contactless switches on multiple floors may be accidentally triggered). Furthermore, multiple contactless switches may be accidentally triggered if there are many passengers in the elevator at the same time. Summary of the Invention
[0005] To this end, the present invention provides a contactless switch control system. The contactless switch control system includes a group of switches, a memory unit, and a processing unit. The group of switches includes a first contactless switch and a second contactless switch (i.e., the group of switches includes a plurality of contactless switches). The group of switches can receive a detection signal of a detection target. The memory unit is used to store a control program. The processing unit is used to execute the control program. When a non-contact switch control system receives a detection signal of an object in the detection area of a switch group, the non-contact switch that first receives the detection signal is designated as the first non-contact switch, and the other non-contact switches are designated as second non-contact switches. The system determines whether the first non-contact switch receives the first detection signal (i.e., the detection signal of the object received by the first non-contact switch), and then determines whether the second non-contact switch receives the second detection signal (i.e., the detection signal of the object received by the second non-contact switch). If both switches are determined to have received the first detection signal, the system determines that multiple non-contact switches in the switch group have been erroneously triggered by an object with a large cross-sectional area within a short period of time, and disables the second non-contact switch. Due to the above-described functional structure, even if multiple non-contact switches are erroneously triggered by an object with a relatively large cross-sectional area within a short period of time, only the non-contact switch that first receives the detection signal of the object (i.e., the first non-contact switch) will trigger. This improves the utilization efficiency of the non-contact switch control system and prevents multiple non-contact switches from erroneously triggering within a short period of time.
[0006] The non-contact switch control system provided by the present invention includes a group of switches for receiving a detection signal of a detection target. The group of switches includes a first non-contact switch and a second non-contact switch. The detection signals include a first detection signal and a second detection signal. The memory unit is used to store a control program, and the processing unit is connected to the group of switches and the memory unit and is used to execute the control program and control the group of switches based on the detection signals. The control program includes a step of determining whether the first non-contact switch has received the first detection signal and acquiring a first determination result; if the first determination result is "yes," a step of determining whether the second non-contact switch has received the second detection signal and acquiring a second determination result; and if the second determination result is "yes," a step of disabling the second non-contact switch.
[0007] In one embodiment of the present invention, the control program of the non-contact switch control system further includes a step of determining whether the group of switches has received a detection signal after disabling the second non-contact switch and obtaining a third determination result; and a step of disabling the group of switches if the third determination result is "yes."
[0008] In one embodiment of the present invention, the control program of the contactless switch control system further comprises the step of triggering the first contactless switch when the second determination result is "yes".
[0009] In one embodiment of the present invention, the control program of the non-contact switch control system further comprises the step of not triggering the first non-contact switch if the second determination result is "yes".
[0010] In one embodiment of the present invention, the non-contact switch control system further comprises a timing unit connected to the processing unit for calculating a time segment, and the control program further comprises the steps of: when the first determination result is "yes", starting to calculate a time segment; and determining whether the second non-contact switch receives a second detection signal within the time segment.
[0011] In one embodiment of the present invention, the non-contact switch control system further comprises a prompt unit connected to the processing unit for providing an operation prompt.
[0012] In one embodiment of the present invention, the group of switches of the non-contact switch control system further comprises an irradiator for transmitting a wireless signal to a detection target, and the detection signal is a reflected signal of the wireless signal.
[0013] In summary, when a non-contact switch control system of the present invention receives a detection signal of a detection target in the detection area of multiple non-contact switches, the non-contact switch that first receives the detection signal is designated as the first non-contact switch, and the non-contact switches other than the first non-contact switch are designated as the second non-contact switches. The system determines whether the first non-contact switch receives the first detection signal, and then determines whether the second non-contact switch receives the second detection signal. If both determination results are "yes," the system determines that multiple non-contact switches in the switch group have been erroneously triggered by an object with a large cross-sectional area within a short period of time, and disables the second non-contact switch. Due to the above-described functional structure, even if multiple non-contact switches are erroneously triggered by an object with a relatively large cross-sectional area within a short period of time, only the non-contact switch that first receives the detection signal of the detection target (i.e., the first non-contact switch) is activated. The present invention improves the utilization efficiency of the non-contact switch control system and prevents multiple non-contact switches from erroneously triggering within a short period of time.
[0014] In order to make the above and other objects, features and advantages of the present invention more clearly understandable, the following detailed description will be given with reference to the accompanying drawings, in which: [Brief explanation of the drawings]
[0015] [Figure 1] FIG. 1 is a block diagram of a contactless switch control system provided by an embodiment of the present invention. [Figure 2]FIG. 1 is a block diagram of a non-contact switch provided by an embodiment of the present invention. [Figure 3] 1 is a schematic diagram of a switch of a floating touch display provided by an embodiment of the present invention; [Figure 4] 1 is a flowchart provided by an embodiment of the present invention. [Figure 5] 1 is a schematic diagram of an embodiment of the present invention applied to an elevator system; [Figure 6] FIG. 2 is a schematic diagram of receiving a detection signal of a detection object provided by an embodiment of the present invention; [Figure 7] 1 is a schematic diagram illustrating a range corresponding to a detection range of a detection object provided by an embodiment of the present invention; [Figure 8] FIG. 2 is a block diagram of a non-contact switch control system provided by another embodiment of the present invention. [Figure 9] 4 is a flowchart provided by another embodiment of the present invention. [Figure 10] FIG. 2 is a block diagram of a contactless switch control system provided by a further embodiment of the present invention. [Figure 11] FIG. 2 is a block diagram of a contactless switch control system provided by a further embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION
[0016] Referring to Figures 1 and 2, Figure 1 is a block diagram of a non-contact switch control system 1 provided in one embodiment of the present invention, and Figure 2 is a block diagram of a non-contact switch NCSW provided in one embodiment of the present invention.
[0017] In this embodiment, the non-contact switch control system 1 of the present invention includes a switch group SWS, a processing unit PU, and a memory unit SU. The switch group SWS includes a plurality of non-contact switches NCSW, and the processing unit PU is connected to the plurality of non-contact switches NCSW and the memory unit SU.
[0018] In this embodiment, the switch group SWS includes multiple non-contact switches NCSW. Among the multiple non-contact switches NCSW, the non-contact switch NCSW that first receives a detection signal from the detection target ST (i.e., the first detection signal, the detection signal at the first time point) is designated as the first non-contact switch NCSW1. The non-contact switch NCSW that subsequently receives a detection signal from the detection target ST (i.e., the second detection signal, the detection signal at the second time point) or a non-contact switch NCSW other than the first non-contact switch NCSW1 is designated as the second non-contact switch NCSW2. In other words, the switch group includes a first non-contact switch and a second non-contact switch, and the detection signals include a first detection signal and a second detection signal. Each non-contact switch NCSW receives the detection signal from the detection target ST in its detection area via the detection module SM. Each non-contact switch NCSW includes a switch module SWM, and each switch module SWM has a first switch state and a second switch state. The storage unit SU stores a control program, and the processing unit PU is used to execute the control program. The control program includes the steps of: determining whether the first non-contact switch NCSW1 has received a first detection signal and acquiring a first determination result; determining whether the second non-contact switch NCSW2 has received a second detection signal and acquiring a second determination result if the first determination result is "yes"; and disabling the second non-contact switch NCSW2 if the second determination result is "yes."
[0019] To avoid any ambiguity in the definition of nouns, the following first describes specific nouns used in the embodiments of the present invention.
[0020] In the present invention, the first non-contact switch NCSW1 refers to the non-contact switch NCSW that first (i.e., at the first time point) receives a detection signal from the detection object ST according to the flow process of the present invention; that is, the first non-contact switch NCSW1 is selected from one non-contact switch NCSW among the multiple non-contact switches NCSW in the switch group SWS, and all of the non-contact switches NCSW in the switch group SWS may be designated as the first non-contact switch NCSW1.
[0021] In the present invention, the second non-contact switch NCSW2 refers to the non-contact switch NCSW that receives the detection signal of the detection object ST after the first non-contact switch NCSW1 (i.e., at the second time point) according to the process of the present invention. That is, the second non-contact switch NCSW2 is selected from the multiple non-contact switches NCSW in the switch group SWS. Also, there may be one or more second non-contact switches NCSW2. In one embodiment, all non-contact switches NCSW in the switch group SWS other than the first non-contact switch NCSW1 are designated as the second non-contact switches NCSW2. All non-contact switches NCSW in the switch group SWS may be designated as the second non-contact switches NCSW2.
[0022] In the present invention, the detection signal includes a first detection signal and a second detection signal. The first detection signal is a detection signal received by the first non-contact switch NCSW1 and refers to a detection signal of the detection target ST received at a first time point. The second detection signal is a detection signal received by the second non-contact switch NCSW2 and refers to a detection signal of the detection target ST received at a second time point, i.e., a time point after the first time point. The first and second time points are used to determine whether multiple non-contact switches NCSW in the switch group SWS have been triggered by the detection target ST within a short period of time. The present invention can determine whether multiple non-contact switches NCSW have been erroneously triggered by the detection target ST within a short period of time by determining whether the first non-contact switch NCSW1 has received the first detection signal and whether the second non-contact switch NCSW2 has received the second detection signal.
[0023] In the present invention, "disabling" refers to the operation of causing a component to lose its original function within a system. For example, disabling the second non-contact switch NCSW2 refers to the operation of causing the processing unit PU to ignore signals from the second non-contact switch NCSW2, or the operation of the processing unit PU sending a control signal to the second non-contact switch NCSW2 to temporarily ignore commands. In one embodiment, the processing unit PU sends a stop command to the irradiation unit EU of the second non-contact switch NCSW2 to stop transmitting wireless signals, thereby preventing the second non-contact switch NCSW2 from receiving reflected signals of the wireless signals (i.e., detection signals from the detection target ST). This disables the second non-contact switch NCSW2 and achieves the technical effect of preventing malfunction. Note that "disabling" refers to the operation of causing a component to lose its original function within a system (e.g., causing a switch to lose its trigger function), and the present invention is not limited to this embodiment.
[0024] Next, the functional structure of the present invention will be described below.
[0025] For example, the processing unit PU can determine whether the first non-contact switch NCSW1 has received a first detection signal and obtain a first determination result (yes / no). If the first determination result is "yes," the processing unit PU can further determine whether the second non-contact switch NCSW2 has received a second detection signal and obtain a second determination result (yes / no). If the second determination result is "yes," the processing unit PU can disable the second non-contact switch NCSW2 by sending a disable command to the second non-contact switch NCSW2 or ignoring a return signal from the second non-contact switch NCSW2. By doing so, when the detection target ST enters the detection area of the switch group SWS or even when multiple non-contact switches NCSW simultaneously detect the detection signal of the detection target ST, only the first non-contact switch NCSW1 is triggered, and the second non-contact switch NCSW2 is not triggered even when the detection target ST enters the detection area of the second non-contact switch NCSW2. As a result, the present invention improves the usage efficiency of the non-contact switch control system 1, avoids the possibility of multiple non-contact switches NCSW being erroneously triggered within a short period of time, and also prevents multiple non-contact switches NCSW from being triggered simultaneously by the detection object ST.
[0026] In this embodiment, the non-contact switch control system 1 of the present invention includes a switch group SWS. The switch group SWS includes a plurality of non-contact switches NCSW. Referring to Figure 2, in one embodiment of the present invention, the non-contact switch NCSW includes a detection module SM and a switch module SWM. The detection module SM may further include an illumination unit EU and a reception unit RU.
[0027] Referring now to FIG. 3, in one embodiment, the non-contact switch NCSW is implemented as a switch of a floating touch display. FIG. 3 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 detection area FTR by the floating touch module FTM (the floating touch module FTM includes a sensing module SM). The detection area can include a detection distance and a detection angle. The detection distance is the distance from the sensing surface of the sensing module SM to the detection target ST, and may vary, for example, within a range of 0 to 10 cm. The detection angle may vary, for example, within a range from 80 degrees to 45 degrees, as the angle formed from any point on the outer edge of the detection surface of the detection module SM (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) as it contracts inward.
[0028] Next, the detection module SM of the non-contact switch NCSW will be described below.
[0029] For example, the sensing module SM may be a capacitive sensing module. When the sensing module SM is a capacitive sensing module, the sensing target ST may be a human body, a part of a human body, or an object whose capacitance value detected by the sensing module SM can be changed as desired. The capacitive sensing module can detect the capacitance value of the human body, and the processing unit PU can send a control signal to control the switch module SWM based on the change in capacitance value.
[0030] For example, the detection module SM may be an infrared light detection module. The detection module SM may include an irradiator EU and a receiver RU. The irradiator EU is used to transmit a wireless signal to the detection target ST, and the receiver RU is used to receive the detection signal. When the detection module SM 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 the irradiator EU for irradiating infrared light. The receiver RU of the detection module SM can receive the infrared light irradiated by the irradiator EU 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 to control the switch module SWM based on the detection signal of the detection target (i.e., a reflected signal of the wireless signal) received by the receiver RU.
[0031] For example, the detection module SM may be an ultrasonic detection module, and the detection module SM may include an emitter EU and a receiver RU. When the detection module SM 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 the ultrasonic radio signal (i.e., the reflected signal of the radio signal) transmitted from the emitter EU for transmitting the ultrasonic radio signal. The receiver RU of the detection module SM can receive the ultrasonic radio signal emitted by the emitter EU and reflected by the object. The processing unit PU can transmit a control signal to control the switch module SWM based on the detection signal (i.e., the reflected signal of the radio signal) of the detection target received by the receiver RU.
[0032] The above examples are merely illustrative embodiments of the non-contact switch NCSW of the present invention, and the present invention is not limited to the listed embodiments. Any non-contact switch NCSW can provide a sensing area for receiving a sensing signal of a sensing object, and any device that controls the switch state of the switch module SWM by a processing unit PU can be used as the non-contact switch NCSW of the present invention.
[0033] In this embodiment, the switch module SWM of the non-contact switch NCSW of the present invention refers to a device used as a switch in a circuit. The switch module SWM has a first switch state and a second switch state. The first switch state and the second switch state refer to the switch states of the switch module SWM in the circuit. The first switch state can include, for example, an open state and a short state. The second switch state can include, for example, a short state and an open state. In other words, the first switch state and the second switch state refer to different switch states in the circuit. The processing unit PU can send a control signal to switch the switch state of the switch module SWM. The switch module SWM can be connected to another external circuit, and the processing unit PU can control the external circuit according to the switch state of the switch module SWM. For example, the switch module SWM may be a multi-stage change-over switch (which opens or shorts a circuit), a transistor switch (which controls the voltage or current to cause the transistor to operate in the cutoff region or saturation region, and when the transistor operates in the cutoff region, the switch state is considered to be the open state of the present invention, and when the transistor operates in the saturation region, the switch state is considered to be the short state of the present invention), or a logic circuit. However, the present invention is not limited to these, and any device that can control an external circuit by switching the switch state can be used as the switch module SWM of the present invention.
[0034] The non-contact switch control system 1 of the present invention includes a storage unit SU. The storage unit SU is a device connected to the processing unit PU for storing a control program. For example, the storage unit SU may be a non-volatile memory, a memory card, a register, or other 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 may be used as the storage unit SU of the present invention.
[0035] Next, referring to FIG. 4, FIG. 4 is a flowchart provided by an embodiment of the present invention. In this embodiment, the processing unit PU can execute a control program. The control program includes the following steps: Step S100: Start of process, proceed to step S101. Step S101: Determine whether the first non-contact switch NCSW1 has received a first detection signal and obtain a first determination result (yes / no). If the first determination result is "no", return to step S100 again to repeatedly determine whether the first non-contact switch NCSW1 has received a first detection signal. If the first determination result is "yes", proceed to step S103. Step S103: If the first determination result is "yes", determine whether the second non-contact switch NCSW2 has received a second detection signal and obtain a second determination result (yes / no). If the second determination result is "no", proceed to step S104; if the second determination result is "yes", proceed to step S1051 or step S1052. Step S104: Since it is determined that only a single non-contact switch NCSW has been triggered, there is no need to disable the second non-contact switch NCSW2, and the first non-contact switch NCSW1 is triggered. Step S1051: If it is determined that multiple non-contact switches NCSW have been triggered, some of the non-contact switches NCSW are not triggered, so the first non-contact switch NCSW1 is triggered, the second non-contact switch NCSW2 is disabled, and the process proceeds to step S107. Step S1052: If it is determined that multiple non-contact switches NCSW have been triggered, all of the non-contact switches NCSW are not triggered, so the first non-contact switch NCSW1 is not triggered, the second non-contact switch NCSW2 is disabled, and the process proceeds to step S107. Step S107: It is determined whether the switch group SWS has received a detection signal, and a third determination result (yes / no) is obtained. If the third determination result is "yes," the process proceeds to step S109. If the third determination result is "no," the process returns to step S100 and the system is restored to its initial state. Step S109: The present invention disables the switch group SWS, allowing the system to be initialized after removing the detection target ST with a large cross-sectional area.That is, the non-contact switch NCSW can be triggered again after the detection target ST with a large cross-sectional area is removed.
[0036] In this embodiment, the non-contact switch control system 1 of the present invention includes a processing unit PU. The processing unit PU is used as a processing core of a device connected to multiple non-contact switches NCSW and a storage unit SU, and executes a control program stored in the storage unit SU to control the switch states of the switch module SWM. For example, the processing unit PU may be a one-chip microcomputer (MCU, Microcontroller Unit), a central processing unit (CPU), or other device with similar functions. The listed types of processing units are merely examples, and the present invention is not limited thereto. Any device capable of transmitting control signals to control the switch states of the switch module SWM may be used as the processing unit PU of the present invention.
[0037] Next, referring to Figures 5 to 7, an elevator system is taken as an example. As shown in Figure 5, the elevator operation panel includes multiple non-contact switches NCSW. As shown in Figure 6, when a detection target ST with a large cross-sectional area enters the detection area of the multiple non-contact switches NCSW, without the application of the non-contact switch control system 1 of the present invention, six non-contact switches NCSW are triggered by the detection target ST within the dashed-line frame as shown in Figure 7. However, as shown in Figure 7, compared to the known technology, the non-contact switch control system 1 of the present invention prevents multiple non-contact switches NCSW from being triggered at once by the detection target ST, allowing the elevator system to operate normally without affecting normal elevator users (i.e., users who only trigger the first non-contact switch NCSW1 corresponding to one floor at a time). The number of non-contact switches NCSW that would normally be triggered is reduced to one. Therefore, only the first non-contact switch NCSW1 is triggered by the detection target ST, and the remaining second non-contact switch NCSW2 within the dashed-line frame is not triggered by the detection target ST.
[0038] Referring now to FIG. 8, FIG. 8 is a block diagram of a contactless switch control system 1' provided by one embodiment of the present invention.
[0039] The present invention provides multiple embodiments. In each embodiment of the present invention, components or devices using the same reference numerals indicate that the functions of the components or devices are the same as those in other embodiments. Therefore, in each embodiment of the present invention, the same functions will not be described repeatedly, and only the differences from other embodiments will be described. Furthermore, the matters mentioned in each embodiment can be rearranged and combined as long as they are not overlapping, and can be applied to each embodiment. The present invention is not limited to the listed embodiments.
[0040] In this embodiment, the non-contact switch control system 1' of the present invention includes a switch group SWS, a processing unit PU, a memory unit SU, and a timing unit TU. The switch group SWS includes a plurality of non-contact switches NCSW, and the processing unit PU is connected to the plurality of non-contact switches NCSW, the memory unit SU, and the timing unit TU.
[0041] Next, refer to FIG. 9, which is a flowchart provided by another embodiment of the present invention. In this embodiment, the non-contact switch control system 1' of the present invention further includes a timing unit TU. The control program includes the following steps: Step S200: Start the process, and proceed to step S201. Step S201: Determine whether the first non-contact switch NCSW1 receives a first detection signal, and obtain a first determination result (yes / no). If the first determination result is "no", return to step S200 again to repeatedly determine whether the first non-contact switch NCSW1 receives the first detection signal. If the first determination result is "yes", proceed to step S202. Step S202: The timing unit TU starts calculating the time segment. Step S203: Determine whether the second non-contact switch NCSW2 receives a second detection signal within the time segment, and obtain a second determination result (yes / no). If the second determination result is "No," the process proceeds to step S204. If the second determination result is "Yes," the process proceeds to step S2051 or step S2052. Step S204: Since it is determined that only a single non-contact switch NCSW has been triggered within the time segment, there is no need to disable the second non-contact switch NCSW2, and the first non-contact switch NCSW1 is triggered. Step S2051: If it is determined that multiple non-contact switches NCSW have been triggered within the time segment, some of the non-contact switches NCSW are not triggered, so the first non-contact switch NCSW1 is triggered and the second non-contact switch NCSW2 is disabled, and the process proceeds to step S207. Step S2052: If it is determined that multiple non-contact switches NCSW have been triggered within the time segment, all of the non-contact switches NCSW are not triggered, so the first non-contact switch NCSW1 is not triggered and the second non-contact switch NCSW2 is disabled, and the process proceeds to step S207. Step S207: Determine whether the switch group SWS has received a detection signal, and obtain a third determination result (yes / no). If the third determination result is "yes", proceed to step S209, and if the third determination result is "no", return to step S200 and return the system to its initial state. Step S209: Disable the switch group SWS.In this embodiment, the non-contact switch control system 1 of the present invention can further provide a specific time segment using the timing unit TU. For example, in an elevator system, if an elevator passenger makes a large hand movement, their hand may enter the detection area of multiple non-contact switches NCSW, which may trigger multiple non-contact switches NCSW. The timing unit TU of this embodiment can provide a specific time segment, and in one embodiment, the time segment is preferably 0.1 seconds. Setting the time segment prevents multiple non-contact switches NCSW from being accidentally triggered when a passenger makes a large hand movement. The timing unit TU is a timing device that repeatedly turns on and off using components such as a motor or coil, and calculates time units by counting the number of open or short contacts to prevent the non-contact switches NCSW from being accidentally triggered. However, the present invention does not impose any restrictions on the type of timing unit TU or the length of the time segment. Any timing device that can count time to prevent the non-contact switches NCSW from being accidentally triggered can be used as the timing unit TU of the present invention.
[0042] Referring now to FIG. 10, FIG. 10 is a block diagram of a non-contact switch control system 1'' provided by one embodiment of the present invention.
[0043] In this embodiment, the non-contact switch control system 1'' of the present invention includes a switch group SWS, a processing unit PU, a memory unit SU, a timing unit TU, and a prompt unit PSU. The switch group SWS includes a plurality of non-contact switches NCSW, and the processing unit PU is connected to the plurality of non-contact switches NCSW, the memory unit SU, the timing unit TU, and the prompt unit PSU.
[0044] In this embodiment, the non-contact switch control system 1'' of the present invention further includes a prompt unit PSU for providing an operation prompt. For example, if a detection signal of a detection target ST is detected within the detection areas of multiple non-contact switches NCSW at the same time, the processing unit PU can disable the second non-contact switch NCSW2 so that it is not triggered. The operation prompt refers, for example, to a prompt for notifying the user that the second non-contact switch NCSW2 has been disabled. In this embodiment, the prompt unit PSU may be 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. The prompt unit PSU can transmit prompt information (audio information, text information, color information, etc.) and can notify the user that a detection signal of a detection object ST (i.e., when the non-contact switch control system 1 detects a detection object ST with a large cross-sectional area or excessive movement of the user, etc.) has been detected in the detection area of the multiple non-contact switches NCSW when the processing unit PU has stopped sending the second control signal to the control program of the second non-contact switch by methods such as emitting a sound, lighting up a light-emitting diode of a different color, or displaying text.
[0045] Next, referring to FIG. 11, FIG. 11 is a block diagram of a non-contact switch control system 1''' provided by an embodiment of the present invention. In addition to the above embodiment, the present invention provides another embodiment. In this embodiment, a prompt unit PSU may also be included in the non-contact switch NCSW.
[0046] In summary, when a non-contact switch control system of the present invention receives a detection signal of a detection target in the detection area of multiple non-contact switches, the non-contact switch that first receives the detection signal is designated as the first non-contact switch, and the non-contact switches other than the first non-contact switch are designated as the second non-contact switches. The system determines whether the first non-contact switch receives the first detection signal, and then determines whether the second non-contact switch receives the second detection signal. If the determination result is "yes," the system determines that multiple non-contact switches in the switch group have been erroneously triggered by an object with a large cross-sectional area within a short period of time, and disables the second non-contact switch. Due to the above-described functional structure, even if multiple non-contact switches are erroneously triggered by an object with a relatively large cross-sectional area within a short period of time, only the non-contact switch that first receives the detection signal of the detection target (i.e., the first non-contact switch) is activated. The present invention improves the utilization efficiency of the non-contact switch control system and prevents multiple non-contact switches from being erroneously triggered within a short period of time.
[0047] Although the present invention has been disclosed using examples, the present invention is not limited thereto. Those skilled in the art can 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]
[0048] 1, 1', 1'', 1': Non-contact switch control system SWS: Switches NCSW: Non-contact switch NCSW1: 1st non-contact switch NCSW2: Second non-contact switch PU: Processing unit SU: Storage section TU: Timing unit PSU: Prompt Unit ST: Detection target SM: Detection Module EU: Irradiation section RU: Receiver SWM: Switch Module FDM: Floating Display Module FTM: Floating Touch Module FTR: Floating Touch Range FI: Floating Image MLA: Microlens array IP: Imaging plate Plate: Flat lens PCBA: Circuit Board C: Connector LED: Light-emitting diode S100~S109: Step S1051, S1052: Step S200~S209: Step S2051, S2052: Steps
Claims
1. a group of switches including a first non-contact switch and a second non-contact switch, the group being used to receive a detection signal including a first detection signal and a second detection signal of a detection target; a storage unit for storing a control program; a processing unit connected to the group of switches and the storage unit, for executing the control program and controlling the group of switches based on the detection signal; A non-contact switch control system comprising: The control program determining whether the first non-contact switch receives the first detection signal and obtaining a first determination result; If the first determination result is "yes", determining whether the second non-contact switch receives the second detection signal and obtaining a second determination result; If the second determination result is "yes", transmitting a control signal from the processing unit to the second non-contact switch to cause the second non-contact switch to temporarily ignore a command; A non-contact switch control system comprising:
2. The control program After causing the second non-contact switch to temporarily ignore the command, determining whether the group of switches has received the detection signal and obtaining a third determination result; If the third determination result is "yes", disabling the group of switches; 2. The non-contact switch control system according to claim 1, further comprising:
3. The control program 2. The non-contact switch control system according to claim 1, further comprising the step of triggering the first non-contact switch if the second determination result is "yes."
4. The control program 2. The non-contact switch control system according to claim 1, further comprising the step of not triggering the first non-contact switch if the second determination result is "yes."
5. a timing unit connected to the processing unit for calculating time segments; The control program 2. The non-contact switch control system of claim 1, further comprising the step of: starting calculation of the time segment when the first determination result is "yes"; and determining whether the second non-contact switch receives the second detection signal within the time segment.
6. The non-contact switch control system according to claim 1 , further comprising a prompt unit connected to the processing unit for providing an operation prompt.
7. 2. The non-contact switch control system according to claim 1, wherein the group of switches includes an irradiation unit for transmitting a wireless signal to the detection object, and the detection signal is a reflected signal of the wireless signal.
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