Lighting device equipped with self-inspection function and loop control function, and method for self-inspection thereof.

Abstract

A lighting device with a self-inspection function and a group control function, and a self-inspection method thereof, are provided. [Solution] The lighting device includes a communication module, a memory module, a microwave sensor module, a control module, and a light-emitting module. The memory module is connected to the communication module and stores an aging table or a suspicion count. The microwave sensor module detects a moving object and generates a detection signal. The control module is connected to the communication module, the microwave sensor module, and the memory module. The light-emitting module is connected to the control module. When the microwave sensor module generates a detection signal, the control module consults the aging table, and if it determines that there are a preset number of trigger records within a time window, it sets the suspicion count to an initial value, generates an activation signal in response to the detection signal to activate the light-emitting module, and broadcasts the activation signal via the communication module.

Description

Technical Field

[0001] The present invention relates to a lighting device, and particularly to a lighting device having a self-diagnosis function and a group control function. The present invention further relates to a method for self-checking a lighting device.

Background Art

[0002] A lighting device having a group sensor function or an object sensor function (such as a microwave sensor function) can detect a moving object (such as a person or a vehicle) in a target area (such as a parking lot, a factory, a production line, a stadium, etc.) and turn on, and issue a detection signal. Thereafter, the lighting device can generate an activation signal according to the detection signal and transmit the activation signal to other lighting devices in the same group to turn on these lighting devices. In this way, these lighting devices can illuminate the target area.

[0003] However, the microwave sensor module of the lighting device is prone to self-excitation due to the influence of ripple and the environment, generating an incorrect detection signal and causing the object detection function to malfunction. Thus, the lighting device may turn on even when no moving object is detected.

[0004] Both Chinese Utility Model Publication No. 201601871 and Chinese Patent Application Publication No. 108575040 disclose lighting devices having a microwave sensor function, but still cannot effectively solve the above problems.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] The object of the present invention is to provide a lighting device equipped with a self-checking function and a group control function, and a method for self-checking the same. [Means for solving the problem]

[0007] The present invention provides a lighting device equipped with self-checking and group control functions, including a communication module, a storage module, a microwave sensor module, a control module, and a light-emitting module. The storage module is connected to the communication module and is used to store an aging table or a count of suspected triggers. The aging table records a plurality of trigger records, the times when the communication module receives an activation signal transmitted from another lighting device within a preset time interval. The microwave sensor module detects moving objects and generates a detection signal. The control module is connected to the communication module, the microwave sensor module, and the storage module. The light-emitting module is connected to the control module. When the microwave sensor module generates a detection signal, the control module queries the aging table and, if it determines that there are a preset number of trigger records within the time window, sets the count of suspected triggers to an initial value. The control module generates an activation signal in response to the detection signal to activate the light-emitting module and broadcasts the activation signal via the communication module.

[0008] As an improvement to the present invention, the time window is centered on the time when the detection signal was generated.

[0009] As an improvement to the present invention, the control module queries the aging table when the microwave sensor module generates a detection signal, and if it determines that there are no preset trigger records within the time window, it adds 1 to the count of doubt and reduces the sensitivity of the microwave sensor module. The control module generates a start signal in response to the detection signal to start the light-emitting module and broadcasts the start signal via the communication module.

[0010] As an improvement to the present invention, the control module queries the aging table when the microwave sensor module generates a detection signal, and if it determines that there are no preset number of trigger records within the time window, it adds 1 to the number of suspected events. If the number of suspected events exceeds the preset upper limit, the control module sets the microwave sensor module to an abnormal state. After setting the microwave sensor module to an abnormal state, the control module turns off the microwave sensor module.

[0011] As an improvement to the present invention, the end of the preset time interval in the aging table is the time when the trigger record was most recently generated.

[0012] The present invention provides a self-inspection method for a lighting device equipped with a group control function, which includes: storing an aging table and a number of suspected cases in a memory module; recording a plurality of trigger records in the aging table, the plurality of trigger records being the times when a communication module receives an activation signal transmitted from another lighting device within a preset time interval; detecting a moving object with a microwave sensor module and generating a detection signal; querying the aging table with a control module when the microwave sensor module generates a detection signal and setting the number of suspected cases to an initial value if there are a preset number of trigger records within the time window; generating an activation signal in response to the detection signal with the control module and activating the light-emitting module; and broadcasting the activation signal via the communication module with the control module.

[0013] As an improvement to the present invention, the time window is centered on the time when the detection signal was generated.

[0014] As an improvement to the present invention, this method further includes: adding one count of suspicion and reducing the sensitivity of the microwave sensor module when the control module determines that there are no preset number of trigger records within the time window; generating an activation signal in response to the detection signal and activating the light-emitting module; and broadcasting the activation signal via the communication module by the control module.

[0015] As an improvement to the present invention, the method further includes: adding 1 to the number of suspects when it is determined via the control module that there are no preset number of trigger records within a time window; setting the microwave sensor module to an abnormal state when the number of suspects exceeds the preset upper limit; and turning off the microwave sensor module after it has been set to an abnormal state via the control module.

[0016] As an improvement to the present invention, the end of the preset time interval in the aging table is the time when the trigger record was most recently generated. [Effects of the Invention]

[0017] Based on the above, a lighting device equipped with a self-check function and a group control function according to an embodiment of the present invention may have one or more of the following advantages. (1) According to the disclosures of the present invention, the lighting device includes a communication module, a storage module, a microwave sensor module, a control module, and a light-emitting module. The storage module is connected to the communication module and is used to store an aging table or a count of suspected triggers. The aging table records a plurality of trigger records, the plurality of trigger records being the times when the communication module receives an activation signal transmitted from another lighting device within a preset time interval. The microwave sensor module detects moving objects and generates a detection signal. The control module is connected to the communication module, the microwave sensor module, and the storage module. The light-emitting module is connected to the control module. When the microwave sensor module generates a detection signal, the control module queries the aging table and sets the count of suspected triggers to an initial value if it determines that there are a preset number of trigger records within the time window. The control module generates an activation signal in response to the detection signal to activate the light-emitting module and broadcasts the activation signal via the communication module. When the microwave sensor module generates a detection signal, the control module queries the aging table and adds 1 to the count of suspected triggers and reduces the sensitivity of the microwave sensor module if it determines that there are not a preset number of trigger records within the time window. The control module generates a start signal in response to the detection signal to activate the light-emitting module and broadcasts the start signal via the communication module. When the microwave sensor module generates a detection signal, the control module queries the aging table and, if it determines that there are no preset trigger records within the time window, adds 1 to the suspicion count. If the suspicion count exceeds the preset upper limit, the control module sets the microwave sensor module to an abnormal state. After setting the microwave sensor module to an abnormal state, the control module turns off the microwave sensor module.The self-check function described above allows the lighting device to self-detect self-excitation and, when self-excitation occurs repeatedly, to spontaneously reduce the sensitivity of the microwave sensor module or turn off the microwave sensor module, thereby preventing the faulty lighting device from affecting the group sensor function of other lighting devices and meeting the requirements of practical applications. (2) Based on the disclosure of the present invention, the control module of the lighting device queries the aging table when the microwave sensor module generates a detection signal and adjusts the number of suspected triggers according to whether there are a preset number of trigger records within the time window. The time window is centered on the time when the detection signal is generated. With the above time window mechanism, the lighting device can accurately determine whether other lighting devices have also detected a moving object and generated a detection signal within a certain period before and after the time the detection signal is generated, and the control module is used as a criterion for determining whether the microwave sensor module is generating self-excitation. Therefore, the above time window mechanism effectively enhances the self-check function described above and makes the self-check function more accurate. (3) Based on the disclosures of the present invention, the control module of the lighting device can perform a self-check function according to a specially designed aging table, the end of the preset time interval of the aging table being the time when the most recent trigger record was generated. Thus, the aging table is aged in the time dimension. That is, the control module can continuously update the aging table, thereby improving the accuracy of the self-check function described above and preventing the lighting device from generating erroneous detection signals. In this way, the self-check mechanism described above can ensure that the lighting system operates normally. (4) Based on the disclosures of the present invention, the self-check function of the lighting device can guarantee that the lighting system operates normally, so the lighting device can be effectively applied to various intelligent systems such as smart home systems and smart parking systems. Therefore, the lighting device can be used more widely and can adapt to future development trends. (5) Based on the disclosure of the present invention, the design of the lighting device is simple, and the self-check function can be realized by a simple and efficient mechanism. As a result, the lighting device can achieve the desired effect without significantly increasing the cost, and the practicality of the lighting device is improved. Therefore, the lighting device can surely meet the requirements of different applications.

Brief Description of the Drawings

[0018] [Figure 1] It is a block diagram of the circuit structure of the lighting device according to the first embodiment of the present invention. [Figure 2] It is a block diagram of the circuit structure of the lighting device according to the second embodiment of the present invention. [Figure 3] It is a block diagram of the circuit structure of the lighting device according to the third embodiment of the present invention. [Figure 4] It is the first flowchart of the self-check method of the lighting device with the group control function according to the fourth embodiment of the present invention. [Figure 5] It is the second flowchart of the self-check method of the lighting device with the group control function according to the fourth embodiment of the present invention. [Figure 6] It is the third flowchart of the self-check method of the lighting device with the group control function according to the fourth embodiment of the present invention.

Modes for Carrying Out the Invention

[0019] In the following embodiments, the detailed features and advantages of the present invention are described, and the content is sufficient for those skilled in the art to understand the technical content of the present invention and to enable them to implement it accordingly. Moreover, based on the disclosure content, claims and drawings of this specification, those skilled in the art can easily understand the objectives and advantages of the present invention.

[0020] The following describes embodiments of the lighting device and its self-inspection method, which include a self-inspection function and a group control function, with reference to the relevant drawings. For clarity and ease of explanation in the drawings, the dimensions and proportions of the components in the drawings may be exaggerated or reduced. In the following description and / or claims, when a component is described as “connected” or “joined” to another component, it may be a direct connection or joining to that other component, or there may be an intermediary component. When a component is described as “directly connected” or “directly joined” to another component, there is no intermediary component, and other terms used to describe relationships between components or layers should be interpreted similarly. For ease of understanding, the same components in the following embodiments are denoted by the same reference numerals.

[0021] Figure 1 is a block diagram of the circuit structure of a lighting device according to a first embodiment of the present invention. As shown in the figure, the lighting device 1 includes a communication module 11, a memory module 12, a microwave sensor module 13, a control module 14, and a light-emitting module 15. The lighting system may include a plurality of lighting devices 1, which have the same structure. Any one lighting device 1 has a microwave sensor function and can generate an activation signal to activate the light-emitting module 15 when it detects a moving object, and simultaneously generate and broadcast an activation signal to activate other lighting devices 1. The lighting system is used to provide lighting functionality to a target area (parking lot, factory, production line, sports field, etc.).

[0022] The communication module 11 can perform wireless communication functions. In one embodiment, the communication module 11 may be an antenna. In another embodiment, the communication module 11 may be various communication circuits.

[0023] The memory module 12 is connected to the communication module 11 and is used to store the aging table and the number of suspected activations. The aging table contains multiple trigger records, which are the times when the communication module 11 receives activation signals transmitted by other lighting devices within a preset time interval. For example, the preset time interval may be 10 seconds and can be adjusted as needed. The number of trigger records may be four and can be adjusted as needed. Furthermore, these trigger records may further include a sequence number and an identifier for these lighting devices. In one embodiment, the memory module 12 is, for example, flash memory. In another embodiment, the memory module 12 may be any conventional memory. For example, the aging table is shown in Table 1 below. [Table 1]

[0024] The end of each preset time interval in the aging table is the time of the most recent trigger record. Therefore, the aging table can be aged in the time dimension and continuously updated.

[0025] The microwave sensor module 13 can detect a moving object and generate a detection signal Ds. In one embodiment, the microwave sensor module 13 may be a microwave sensor.

[0026] The control module 14 is connected to the communication module 11, the microwave sensor module 13, and the memory module 12. In one embodiment, the control module 14 may be a microcontroller unit (MCU). In another embodiment, the control module 14 may be a central processing unit (CPU), an application-specific integrated circuit chip (ASIC), a field-programmable gate array (FPGA), or other similar component.

[0027] The light-emitting module 15 is connected to the control module 14. In one embodiment, the light-emitting module 15 may be a light-emitting diode (LED). In another embodiment, the light-emitting module 15 may be a light-emitting diode array, a light bulb, or other similar light source.

[0028] When the microwave sensor module 13 generates a detection signal Ds, the control module 14 queries the aging table and sets the number of suspected cases to an initial value (for example, the initial value may be 0. This initial value can be adjusted according to actual needs. For example, the number of presets may be 2. This number of presets can be adjusted according to actual needs). Subsequently, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11. For example, the length of the time window may be 2 seconds (in another embodiment, the length of the time window may be 3 seconds or more and can be increased or decreased according to actual needs). The above time window has the time when the microwave sensor module 13 generates the detection signal Ds as its center time. That is, the control module 14 determines through the time window whether other lighting devices 1 also detect moving objects and generate detection signals Ds within a certain period of time before and after the time when the microwave sensor module 13 generates the detection signal Ds. For example, the fixed period may be 0.7 seconds (in another embodiment, the length of the fixed period may be 1 second or more and can be increased or decreased according to actual needs). The preset time interval is more than twice the fixed period. If this is the case, the control module 14 determines that the detection signal Ds from the microwave sensor module 13 is correct, and therefore the microwave sensor module 13 operates normally. At this time, the control module 14 does not adjust the number of doubts and broadcasts a start signal As to the other lighting device 1 via the communication module 11 to start the other lighting device 1.

[0029] On the other hand, if the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, the control module 14 increases the number of doubts by 1 and reduces the sensitivity of the microwave sensor module 13. Then, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11. In other words, the control module 14 determines, through the time window, whether other lighting devices 1 also detect moving objects and generate detection signals Ds within a certain time period before and after the microwave sensor module 13 generates the detection signal Ds. If not, the control module 14 is temporarily unable to determine whether the detection signal Ds of the microwave sensor module 13 is correct. At this time, the control module 14 increases the number of doubts by 1 and reduces the sensitivity of the microwave sensor module 13 to prevent the microwave sensor module 13 from generating an incorrect detection signal Ds. Furthermore, the control module 14 broadcasts a start signal As to other lighting devices 1 via the communication module 11, causing the other lighting devices 1 to start up.

[0030] If the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, it adds 1 to the count of doubt, and if the count of doubt becomes greater than the preset upper limit, it sets the microwave sensor module 13 to an abnormal state. For example, the preset upper limit may be 3 and can be adjusted as needed. After setting the microwave sensor module 13 to an abnormal state, the control module 14 either turns off the microwave sensor module 13 or ignores the detection signal Ds when it is next received from the microwave sensor module 13. That is, the control module 14 determines through the time window whether other lighting devices 1 also detect a moving object and generate a detection signal Ds within a certain time period before and after the microwave sensor module 13 generates the detection signal Ds. If not, and if the count of doubt becomes greater than the preset upper limit, the control module 14 determines that the detection signal Ds from the microwave sensor module 13 is incorrect and that the microwave sensor module 13 has experienced repeated self-excitation. At this point, the control module 14 no longer trusts the detection signal Ds from the microwave sensor module 13 and either turns off the microwave sensor module 13 or, the next time it receives the detection signal Ds from the microwave sensor module 13, it directly ignores the detection signal Ds.

[0031] As can be seen from the above, the self-check function of this embodiment allows the lighting device 1 to self-detect self-excitation and, when self-excitation occurs repeatedly, to spontaneously reduce the sensitivity of the microwave sensor module 13 or turn off the microwave sensor module 13, so that a faulty lighting device 1 does not affect the group sensor function of other lighting devices 1. In this way, the lighting system can automatically ignore the microwave sensor function of a faulty lighting device 1, allowing the lighting system to operate normally and meet the requirements of actual applications.

[0032] Furthermore, in this embodiment, the control module 14 of the lighting device 1 queries the aging table when the microwave sensor module 13 generates a detection signal Ds and adjusts the number of suspected triggers depending on whether there are a preset number of trigger records within the time window. The time window is centered on the time when the detection signal Ds is generated. With the above-described time window mechanism, the lighting device 1 can accurately determine whether other lighting devices 1 have also detected a moving object and generated a detection signal Ds within a certain period before and after the generation of the detection signal Ds, and the control module 14 can be used as a criterion for determining whether the microwave sensor module 13 is generating self-excitation. Therefore, the above-described time window mechanism effectively enhances the self-check function and makes the self-check function more accurate.

[0033] Furthermore, in this embodiment, the control module 14 of the lighting device 1 can perform a self-check function according to a specially designed aging table, where the end of the preset time interval of the aging table is the time when the most recent trigger record was generated. Therefore, the aging table is aged in the time dimension. That is, the control module 14 can continuously update the aging table, thereby improving the accuracy of the aforementioned self-check function and preventing the lighting device from generating erroneous detection signals. In this way, the aforementioned self-check mechanism can ensure that the lighting system operates normally.

[0034] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the lighting device 1 with self-checking and loop control functions of this embodiment should still be within the scope of protection of the present invention.

[0035] Conventional lighting devices' microwave sensor modules are prone to self-excitation due to ripple and environmental influences, resulting in the generation of erroneous detection signals and preventing the object detection function from working correctly. Thus, lighting devices may turn on even when no moving object is detected. In contrast, according to the present invention, the lighting device includes a communication module, a storage module, a microwave sensor module, a control module, and a light-emitting module. The storage module is connected to the communication module and is used to store an aging table or a count of suspected activations. The aging table records a plurality of trigger records, the times when the communication module receives an activation signal transmitted from another lighting device within a preset time interval. The microwave sensor module detects a moving object and generates a detection signal. The control module is connected to the communication module, microwave sensor module, and storage module. The light-emitting module is connected to the control module. When the microwave sensor module generates a detection signal, the control module queries the aging table and sets the count of suspected activations to an initial value if it determines that there are a preset number of trigger records within the time window. The control module generates an activation signal in response to the detection signal to activate the light-emitting module and broadcasts the activation signal via the communication module. The control module queries the aging table when the microwave sensor module generates a detection signal. If it determines that there are no preset trigger records within the time window, it adds 1 to the suspicion count and reduces the sensitivity of the microwave sensor module. The control module generates an activation signal in response to the detection signal to activate the light-emitting module and broadcasts the activation signal via the communication module. The control module queries the aging table when the microwave sensor module generates a detection signal. If it determines that there are no preset trigger records within the time window, it adds 1 to the suspicion count. If the suspicion count exceeds the preset upper limit, it sets the microwave sensor module to an abnormal state. After setting the microwave sensor module to an abnormal state, the control module turns off the microwave sensor module.The self-check function described above allows the lighting device to self-detect self-excitation and, when self-excitation occurs repeatedly, to spontaneously reduce the sensitivity of the microwave sensor module or turn off the microwave sensor module, thereby preventing the faulty lighting device from affecting the group sensor function of other lighting devices and meeting the requirements of practical applications.

[0036] Furthermore, according to the first embodiment of the present invention, the control module of the lighting device queries an aging table when the microwave sensor module generates a detection signal and adjusts the number of suspected triggers according to whether there are a preset number of trigger records within the time window. The time window is centered on the time when the detection signal is generated. With the above time window mechanism, the lighting device can accurately determine whether other lighting devices have also detected a moving object and generated a detection signal within a certain period before and after the time the detection signal is generated, and the control module is used as a criterion for determining whether the microwave sensor module is generating self-excitation. Therefore, the above time window mechanism effectively enhances the self-check function described above and makes the self-check function more accurate.

[0037] Furthermore, according to the first embodiment of the present invention, the control module of the lighting device can perform a self-check function according to a specially designed aging table, where the end of the preset time interval of the aging table is the time when the most recent trigger record was generated. Thus, the aging table is aged in the time dimension. That is, the control module can continuously update the aging table, thereby improving the accuracy of the aforementioned self-check function and preventing the lighting device from generating erroneous detection signals. In this way, the aforementioned self-check mechanism can ensure that the lighting system operates normally.

[0038] Furthermore, according to the first embodiment of the present invention, the self-check function of the lighting device ensures that the lighting system operates normally, so the lighting device can be effectively applied to various intelligent systems such as smart home systems and smart parking systems. Therefore, the lighting device can be used more widely and can adapt to future development trends.

[0039] Furthermore, according to the first embodiment of the present invention, the design of the lighting device is simple, and the self-checking function can be realized by a simple and efficient mechanism. As a result, the lighting device can achieve the desired effect without significantly increasing costs, and the practicality of the lighting device is improved. Therefore, the lighting device can certainly meet the requirements of different applications. From the above, it can be seen that the lighting device equipped with a self-checking function and a group control function according to the embodiment of the present invention can certainly achieve excellent technical effects.

[0040] Figure 2 is a block of the circuit structure of a lighting device according to a second embodiment of the present invention. As shown in the figure, the lighting device 1 includes a communication module 11, a memory module 12, a microwave sensor module 13, a control module 14, and a light-emitting module 15. The lighting system may include a plurality of lighting devices 1, which have the same structure. Any one lighting device 1 has a microwave sensor function and can generate an activation signal to activate the light-emitting module 15 when it detects a moving object, and simultaneously generate and broadcast an activation signal to activate other lighting devices 1. The lighting system is used to provide lighting functionality to a target area (parking lot, factory, production line, sports field, etc.).

[0041] The memory module 12 is connected to the communication module 11. The control module 14 is connected to the communication module 11, the microwave sensor module 13, the memory module 12, and the light-emitting module 15.

[0042] Since the components described above are the same as those in the previously described embodiments, a detailed explanation is omitted here. Unlike the previously described embodiments, the lighting device 1 of this embodiment further includes a warning module 16. The warning module 16 is connected to the control module 14. In one embodiment, the warning module 16 may be a warning light. In another embodiment, the warning module 16 may be a buzzer or other similar component.

[0043] Similarly, when the microwave sensor module 13 generates a detection signal Ds, the control module 14 queries the aging table and sets the number of suspected triggers to an initial value if there are a preset number of trigger records within the judgment time window. Then, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11.

[0044] When the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, the control module 14 adds 1 to the count of doubt and reduces the sensitivity of the microwave sensor module 13. Subsequently, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11.

[0045] As described above, when the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, it adds 1 to the suspicion count. If the suspicion count is greater than the preset upper limit, the microwave sensor module 13 is set to an abnormal state. After setting the microwave sensor module 13 to an abnormal state, the control module 14 either turns off the microwave sensor module 13 or ignores the detection signal Ds the next time it is received from the microwave sensor module 13. At the same time, the control module 14 controls the warning module 16 to generate a warning signal Ws, prompting the user to repair the lighting device 1.

[0046] In this embodiment, the control module 14 of the lighting device 1 queries an aging table when the microwave sensor module 13 generates a detection signal Ds and adjusts the number of suspected triggers depending on whether there are a preset number of trigger records within the time window. The time window is centered on the time when the detection signal Ds was generated. With the above-described time window mechanism, the lighting device 1 can accurately determine whether other lighting devices 1 have also detected a moving object and generated a detection signal Ds within a certain period before and after the time when the detection signal Ds was generated, and the control module 14 can be used as a criterion for determining whether the microwave sensor module 13 is generating self-excitation. Therefore, the above-described time window mechanism effectively enhances the self-check function and makes the self-check function more accurate.

[0047] Furthermore, in this embodiment, the self-diagnostic function of the lighting device 1 ensures that the lighting system operates normally, so the lighting device 1 can be effectively applied to various intelligent systems such as smart home systems and smart parking systems. Therefore, the lighting device can be used more widely and can adapt to future development trends.

[0048] Furthermore, in this embodiment, the design of the lighting device 1 is simple, and the self-check function can be realized by a simple and efficient mechanism. As a result, the lighting device 1 can achieve the desired effect without significantly increasing costs, and the practicality of the lighting device is improved. Therefore, the lighting device can certainly meet the requirements of different applications.

[0049] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the lighting device 1 with self-checking and loop control functions of this embodiment should still be within the scope of protection of the present invention.

[0050] Figure 3 is a block diagram of the circuit structure of a lighting device according to a third embodiment of the present invention. As shown in the figure, the lighting device 1 includes a communication module 11, a memory module 12, a microwave sensor module 13, a control module 14, a light-emitting module 15, and a warning module 16. The lighting system may include a plurality of lighting devices 1, each having the same structure. Any one lighting device 1 has a microwave sensor function and can generate an activation signal to activate the light-emitting module 15 when it detects a moving object, and simultaneously generate and broadcast an activation signal to activate other lighting devices 1. The lighting system is used to provide lighting functionality to a target area (such as a parking lot, factory, production line, or sports field).

[0051] The memory module 12 is connected to the communication module 11. The control module 14 is connected to the communication module 11, the microwave sensor module 13, the memory module 12, the light-emitting module 15, and the warning module 16.

[0052] Since the above components are the same as those in the previously described embodiment, a detailed explanation is omitted here. Unlike the previously described embodiment, the lighting device 1 of this embodiment further includes a switch module 17. The switch module 17 is connected to the control module 14. In one embodiment, the switch module 17 may be a DIP switch. In another embodiment, the switch module 17 may be a button, a knob, or other similar component.

[0053] Similarly, when the microwave sensor module 13 generates a detection signal Ds, the control module 14 queries the aging table and sets the number of suspected triggers to an initial value if there are a preset number of trigger records within the judgment time window. Then, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11.

[0054] When the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, the control module 14 adds 1 to the count of doubt and reduces the sensitivity of the microwave sensor module 13. Subsequently, the control module 14 generates an activation signal As based on the detection signal Ds to activate the light-emitting module 15 and broadcasts the activation signal As via the communication module 11.

[0055] As described above, when the microwave sensor module 13 generates a detection signal Ds and the control module 14 determines that there are no preset trigger records within the time window, it adds 1 to the number of suspected cases. If the number of suspected cases is greater than the preset upper limit, the microwave sensor module 13 is set to an abnormal state. Subsequently, the control module 14 sets the microwave sensor module 13 to an abnormal state and either turns off the microwave sensor module 13, or ignores the detection signal Ds the next time it is received from the microwave sensor module 13. At the same time, the control module 14 controls the warning module 16 to generate a warning signal Ws, prompting the user to repair the lighting device 1.

[0056] The user can turn off the self-check function by operating the switch module 17. The user can also turn the self-check function back on by operating the switch module 17. When the user turns the self-check function back on by operating the switch module 17, the control module 14 clears all abnormal information and returns the lighting device 1 to its initial operating state.

[0057] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the lighting device 1 with self-checking and loop control functions of this embodiment should still be within the scope of protection of the present invention.

[0058] Figure 4 is a first flowchart of a self-inspection method for a lighting device with a group control function according to a fourth embodiment of the present invention. As shown in the figure, the method includes the following steps. Step S41: Store the aging table and the number of suspected triggers via the memory module. The aging table records multiple trigger records, where the communication module is the time when it receives an activation signal transmitted from another lighting device within a preset time interval. Step S42: The microwave sensor module detects the moving object and generates a detection signal. Step S43: The control module queries the aging table when the microwave sensor module generates a detection signal, and sets the number of suspected cases to an initial value if there are a preset number of trigger records within the judgment time window. Step S44: The control module generates a start signal in response to the detection signal and activates the light-emitting module. Step S45: The control module broadcasts a startup signal via the communication module.

[0059] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the self-inspection method for a lighting device having a group control function of this embodiment should still be included within the scope of protection of the present invention.

[0060] Figure 5 is a second flowchart of a self-inspection method for a lighting device with group control functionality according to a fourth embodiment of the present invention. As shown in the figure, the method further includes the following steps. Step S51: When the control module determines that there are no preset trigger records within the time window, it adds 1 to the count of doubt and reduces the sensitivity of the microwave sensor module. Step S52: The control module generates a start signal in response to the detection signal and activates the light-emitting module. Step S53: The control module broadcasts a startup signal via the communication module.

[0061] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the self-inspection method for a lighting device having a group control function of this embodiment should still be included within the scope of protection of the present invention.

[0062] Figure 6 is a third flowchart of a self-inspection method for a lighting device with a group control function according to a fourth embodiment of the present invention. As shown in the figure, the method further includes the following steps. Step S61: When the control module determines that there are no preset number of trigger records within the time window, it adds 1 to the number of suspects. When the number of suspects exceeds the preset upper limit, it sets the microwave sensor module to an abnormal state. Step S62: After setting the microwave sensor module to an abnormal state via the control module, the microwave sensor module is turned off.

[0063] Naturally, this embodiment is for illustrative purposes only and does not limit the scope of the present invention, and equivalent modifications or changes made based on the self-inspection method for a lighting device having a group control function of this embodiment should still be included within the scope of protection of the present invention.

[0064] Although the steps of the method described in this invention are shown and explained in a specific order, the order of operations of each method may be changed, some steps may be performed in reverse order, or simultaneously with other steps. In another embodiment, different steps may be performed intermittently and / or alternately.

[0065] In summary, according to the first to fourth embodiments of the present invention, the lighting device includes a communication module, a storage module, a microwave sensor module, a control module, and a light-emitting module. The storage module is connected to the communication module and is used to store an aging table or a count of suspected triggers. The aging table records a plurality of trigger records, the plurality of trigger records being the times when the communication module receives an activation signal transmitted from another lighting device within a preset time interval. The microwave sensor module detects moving objects and generates a detection signal. The control module is connected to the communication module, the microwave sensor module, and the storage module. The light-emitting module is connected to the control module. When the microwave sensor module generates a detection signal, the control module queries the aging table and sets the count of suspected triggers to an initial value if it determines that there are a preset number of trigger records within the time window. The control module generates an activation signal in response to the detection signal to activate the light-emitting module and broadcasts the activation signal via the communication module. When the microwave sensor module generates a detection signal, the control module queries the aging table and adds 1 to the count of suspected triggers and reduces the sensitivity of the microwave sensor module if it determines that there are not a preset number of trigger records within the time window. The control module generates a start signal in response to the detection signal to activate the light-emitting module and broadcasts the start signal via the communication module. When the microwave sensor module generates a detection signal, the control module queries the aging table and, if it determines that there are no preset trigger records within the time window, adds 1 to the suspicion count. If the suspicion count exceeds the preset upper limit, the control module sets the microwave sensor module to an abnormal state. After setting the microwave sensor module to an abnormal state, the control module turns off the microwave sensor module.The self-check function described above allows the lighting device to self-detect self-excitation and, when self-excitation occurs repeatedly, to spontaneously reduce the sensitivity of the microwave sensor module or turn off the microwave sensor module, thereby preventing the faulty lighting device from affecting the group sensor function of other lighting devices and meeting the requirements of practical applications.

[0066] Furthermore, according to the first to fourth embodiments of the present invention, the control module of the lighting device queries an aging table when the microwave sensor module generates a detection signal and adjusts the number of suspected triggers according to whether there are a preset number of trigger records within the time window. The time window is centered on the time when the detection signal is generated. With the above time window mechanism, the lighting device can accurately determine whether other lighting devices have also detected a moving object and generated a detection signal within a certain period before and after the time the detection signal is generated, and the control module is used as a criterion for determining whether the microwave sensor module is generating self-excitation. Therefore, the above time window mechanism effectively enhances the self-check function described above and makes the self-check function more accurate.

[0067] Furthermore, according to the first to fourth embodiments of the present invention, the control module of the lighting device can perform a self-check function according to a specially designed aging table, where the end of the preset time interval of the aging table is the time when the most recent trigger record was generated. Thus, the aging table is aged in the time dimension. That is, the control module can continuously update the aging table, thereby improving the accuracy of the aforementioned self-check function and preventing the lighting device from generating erroneous detection signals. In this way, the aforementioned self-check mechanism can ensure that the lighting system operates normally.

[0068] Furthermore, according to the first to fourth embodiments of the present invention, the self-check function of the lighting device ensures that the lighting system operates normally, so the lighting device can be effectively applied to various intelligent systems such as smart home systems and smart parking systems. Therefore, the lighting device can be used more widely and can adapt to future development trends.

[0069] Furthermore, according to the first to fourth embodiments of the present invention, the design of the lighting device is simple, and the self-checking function can be realized by a simple and efficient mechanism. As a result, the lighting device can achieve the desired effect without significantly increasing costs, and the practicality of the lighting device is improved. Therefore, the lighting device can certainly meet the requirements of different applications.

[0070] While the embodiments described herein are explained, it should be noted that this does not limit the scope of the claims of the present invention. Therefore, any changes and modifications to the embodiments described herein, or substitution of equivalent structures or processes using the contents of the specification and drawings of the present invention, or direct or indirect application of the above-described technology to other related technical fields, based on the innovative concept of the present invention, are all included within the scope of the claims of the present invention. [Explanation of Symbols]

[0071] 1. Lighting device 11. Communication Module 12 memory modules 13 Microwave Sensor Module 14 Control Module 15 Light-emitting modules 16 Warning Modules 17 Switch Modules Ds detection signal As start signal WS warning signal S41 Step S42 Step S43 Step S44 Step S45 Step S51 Step S52 Step S53 Step S61 Step S62 Step

Claims

1. Communication module and A storage module connected to the communication module and used to store an aging table and a count of suspected counts, wherein the aging table records a plurality of trigger records, the plurality of trigger records recording the time when the communication module received an activation signal transmitted from another lighting device within a preset time interval, A microwave sensor module used to detect moving objects and generate detection signals, A control module connected to the communication module, the microwave sensor module, and the storage module, A light-emitting module connected to the control module, Includes, The lighting device is characterized in that the control module queries the aging table when the microwave sensor module generates the detection signal, and sets the number of suspected cases to an initial value if it determines that there are a preset number of trigger records within the time window, generates the start signal in response to the detection signal to start the light-emitting module, and broadcasts the start signal via the communication module.

2. The lighting device with a self-check function and a group control function according to claim 1, characterized in that the time window has the time at which the detection signal was generated as its central time.

3. The lighting device equipped with a self-check function and a group control function according to claim 1, characterized in that the control module queries the aging table when the microwave sensor module generates the detection signal, and if it determines that there are no preset trigger records within the time window, it adds 1 to the number of suspected cases and reduces the sensitivity of the microwave sensor module, and generates the start signal in response to the detection signal to start the light-emitting module, and broadcasts the start signal via the communication module.

4. The lighting device with a self-check function and group control function according to claim 3, characterized in that the control module queries the aging table when the microwave sensor module generates the detection signal, and if it determines that there are no preset trigger records within the time window, it adds 1 to the number of suspects, and if the number of suspects becomes greater than the preset upper limit, it sets the microwave sensor module to an abnormal state, and after setting the microwave sensor module to an abnormal state, it turns off the microwave sensor module.

5. The lighting device equipped with a self-check function and a group control function according to claim 1, characterized in that the end of the preset time interval of the aging table is the time when the trigger record was most recently generated.

6. The memory module stores the aging table and the number of suspected occurrences, the aging table records multiple trigger records, and the multiple trigger records record the time when the communication module received an activation signal transmitted from another lighting device within a preset time interval. The microwave sensor module detects moving objects and generates a detection signal, The control module queries the aging table when the microwave sensor module generates the detection signal, and sets the number of suspected cases to an initial value if there are a preset number of trigger records within the time window. The control module generates the activation signal in response to the detection signal and activates the light-emitting module. The control module broadcasts the startup signal via the communication module, A self-inspection method for a lighting device equipped with a group control function, characterized by including the following:

7. The self-inspection method for a lighting device equipped with a group control function according to claim 6, characterized in that the time window is centered on the time when the detection signal was generated.

8. If the control module determines that there are no preset trigger records within the time window, it adds one to the number of suspected cases and reduces the sensitivity of the microwave sensor module. The control module generates the activation signal in response to the detection signal and activates the light-emitting module. A self-inspection method for a lighting device with a group control function according to claim 6, further comprising broadcasting the activation signal via the communication module by the control module.

9. If the control module determines that there are no preset trigger records within the time window, the number of suspected cases is increased by 1, and when the number of suspected cases exceeds the preset upper limit, the microwave sensor module is set to an abnormal state. The microwave sensor module is turned off after it has been set to an abnormal state via the control module. A self-inspection method for a lighting device equipped with a group control function according to claim 8, further comprising the above.

10. The self-inspection method for a lighting device equipped with a group control function according to claim 6, characterized in that the end of the preset time interval of the aging table is the time when the trigger record was most recently generated.

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