Traffic signal system, traffic signal lamp and state detection method thereof

Abstract

A traffic signal system, a traffic signal lamp and a state detection method thereof are disclosed. The traffic signal lamp includes a plurality of light emitting devices. Each light emitting device includes a light emitting element, a power distribution module, a power module, a controller and a measurer. The power module is used to convert alternating current into direct current and provide the direct current to the light emitting element and the power distribution module. The measurer is electrically coupled to the power distribution module and the light emitting element. The controller is electrically coupled to the power distribution module and the measurer. When a selected one of the light emitting devices receives the alternating current, the power distribution module of the selected one provides the direct current to the controller and the measurer of the selected one and the power distribution modules of the rest of the light emitting devices.

Description

Technical Field

[0001] This invention relates to a traffic signal light fixture, a traffic signal system, and a method for detecting the status of the traffic signal light fixture using the same. Background Technology

[0002] Currently, when traffic lights malfunction, road users notify the relevant authorities, who then dispatch maintenance personnel for on-site inspection and repair. However, the time between traffic light malfunction and repair completion can cause numerous traffic management problems. Therefore, developing an efficient method for detecting the status of traffic signal lights is one of the ongoing efforts of professionals in this field. Summary of the Invention

[0003] Therefore, the present invention proposes a traffic signal system, traffic signal lights and their status detection method, which can improve the aforementioned existing problems.

[0004] One embodiment of the present invention provides a traffic signal light fixture. The traffic signal light fixture includes several light-emitting devices. Each light-emitting device includes a light-emitting element, a power distribution module, a power module, a controller, and a measuring device. The power module is used to convert alternating current (AC) into direct current (DC) and supply DC power to the light-emitting element and the power distribution module. The measuring device is electrically coupled to the power distribution module and the light-emitting element. The controller is electrically coupled to the power distribution module and the measuring device. When one of the light-emitting devices receives AC power, the selected device's power distribution module supplies DC power to the selected device's controller and measuring device, as well as to the power distribution modules of the remaining light-emitting devices.

[0005] The power distribution module of each light-emitting device is electrically coupled to a power stabilization module; the power distribution module of the selected device is used to provide the DC power to the power stabilization module for storage.

[0006] The power distribution module of each light-emitting device is electrically coupled to a power stabilization module; when all the light-emitting devices are not receiving AC power, the power stabilization module provides a stored power to the power distribution module of all the light-emitting devices.

[0007] The controller of each light-emitting device is used to: receive driving information detected by the corresponding measuring device; obtain a difference between the driving information and a driving default value; determine whether the difference exceeds a driving tolerance range; and generate a driving abnormality signal when the difference exceeds the tolerance range.

[0008] The controller of each light-emitting device is used to: receive light-emitting brightness information of the corresponding light-emitting element; obtain a difference between the light-emitting brightness information and a default light-emitting brightness value; determine whether the difference exceeds an allowable range of light-emitting brightness; and generate a light-emitting brightness abnormality signal when the difference exceeds the allowable range of light-emitting brightness.

[0009] It further includes: a wireless communication module electrically coupled to the power distribution module and a power stabilization module of each of the light-emitting devices; when the selected light-emitting device receives the AC power, the selected device's power distribution module provides the DC power to the wireless communication module; when none of the light-emitting devices receive the AC power, the power stabilization module provides a stored power to the wireless communication module.

[0010] Another embodiment of the present invention provides a traffic signal light fixture. The traffic signal light fixture includes several light-emitting devices. Each light-emitting device includes a light-emitting element, a power module, a measuring device, and a controller. The power module converts alternating current (AC) into a first direct current (DC) and supplies the first DC to the light-emitting element. The measuring device is electrically coupled to the light-emitting element and the power module. The controller is electrically coupled to the measuring device. A power distribution module receives AC and converts it into a second DC, which is then supplied to a power stabilization module. The power stabilization module stores the second DC as a stored energy source and supplies the stored energy to the controller and the measuring device of each light-emitting device.

[0011] It further includes: a wireless communication module electrically coupled to the power stabilization module; wherein the power stabilization module is further used to provide the stored energy to the wireless communication module.

[0012] The controller of each light-emitting device is used to: receive driving information detected by the corresponding measuring device; obtain a difference between the driving information and a driving default value; determine whether the difference exceeds a driving tolerance range; and generate a driving abnormality signal when the difference exceeds the tolerance range.

[0013] The controller of each light-emitting device is used to: receive light-emitting brightness information of the corresponding light-emitting element; obtain a difference between the light-emitting brightness information and a default light-emitting brightness value; determine whether the difference exceeds an allowable range of light-emitting brightness; and generate a light-emitting brightness abnormality signal when the difference exceeds the allowable range of light-emitting brightness.

[0014] Another embodiment of the present invention provides a traffic signal system. The traffic signal system includes a traffic light controller and the aforementioned traffic signal lights. The traffic light controller is used to provide alternating current to the traffic signal lights.

[0015] Another embodiment of the present invention provides a method for detecting the status of traffic signal lights. The method includes the following steps: a power module converts an alternating current (AC) into a direct current (DC) and supplies the DC to the light-emitting elements and a power distribution module; a measuring device measures the DC; and when a selected light-emitting device receives AC, the selected device's power distribution module supplies the DC to the selected device's controller and the measuring device, as well as to the power distribution modules of the remaining light-emitting devices.

[0016] This includes: the power distribution module of the selected candidate provides the DC power to the power stabilization module for storage.

[0017] Furthermore, it includes: when all the light-emitting devices are not receiving AC power, a power stabilization module provides a power distribution module that stores power to all the light-emitting devices.

[0018] This further includes: receiving a driving information detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; determining whether the difference exceeds a driving tolerance range; and generating a driving abnormality signal when the difference exceeds the tolerance range.

[0019] This further includes: receiving luminance information of the corresponding light-emitting element; obtaining a difference between the luminance information and a default luminance value; determining whether the difference exceeds an allowable range of luminance; and generating an abnormal luminance signal when the difference exceeds the allowable range of luminance.

[0020] Furthermore, it includes: when the selected light-emitting device receives the AC power, the power distribution module of the selected device provides the DC power to a wireless communication module; and when none of the light-emitting devices receive the AC power, a power stabilization module provides a stored power to the wireless communication module; wherein the wireless communication module is electrically coupled to the power distribution module and the power stabilization module of each light-emitting device.

[0021] Another embodiment of the present invention provides a method for detecting the status of traffic signal lights. The method includes the following steps: when a selected device receives alternating current (AC), a power module of the selected device converts the AC into a first direct current (DC); the power module provides the first DC to the selected device's light-emitting element; a power distribution module converts the AC into a second DC; the power distribution module provides the second DC to a power stabilization module; the power stabilization module stores the second DC as a stored energy; and the power stabilization module provides the stored energy to the controller and measuring device of each light-emitting device.

[0022] This includes: the power stabilization module providing the stored energy to the wireless communication module.

[0023] This further includes: receiving a driving information detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; determining whether the difference exceeds a driving tolerance range; and generating a driving abnormality signal when the difference exceeds the tolerance range.

[0024] This further includes: receiving luminance information of the corresponding light-emitting element; obtaining a difference between the luminance information and a default luminance value; determining whether the difference exceeds an allowable range of luminance; and generating an abnormal luminance signal when the difference exceeds the allowable range of luminance.

[0025] To provide a better understanding of the above and other aspects of the present invention, specific embodiments are described below in conjunction with the accompanying drawings: Attached Figure Description

[0026] Figure 1A A schematic diagram illustrating the power supply of a traffic light controller to a light-emitting device 111 in a traffic signal system according to an embodiment of the present invention.

[0027] Figure 1B Draw Figure 1A A schematic diagram showing the power supply of the traffic light controller to the light-emitting device 112.

[0028] Figure 1C Draw Figure 1A A schematic diagram showing the power supply of the traffic light controller to the light-emitting device 113.

[0029] Figure 1D Draw Figure 1A A schematic diagram showing how the power stabilization module supplies power to several light-emitting devices of the traffic signal lights.

[0030] Figure 1E Draw Figure 1A The timing diagram of the traffic light controller controlling the traffic signal lights.

[0031] Figure 2A A schematic diagram illustrating the power supply of a traffic light controller to a light-emitting device 211 in a traffic signal system according to another embodiment of the present invention.

[0032] Figure 2B Draw Figure 2A A schematic diagram of the traffic light controller supplying power to the light-emitting device 212.

[0033] Figure 2C Draw Figure 2A A schematic diagram showing the power supply of the traffic light controller to the light-emitting device 213.

[0034] Figure 3 Its illustration Figures 1A to 1DA flowchart of a method for detecting the status of traffic signal lights in a traffic signal system.

[0035] Figure 4 Its illustration Figures 2A to 2C A flowchart of a method for detecting the status of traffic signal lights in a traffic signal system.

[0036] In the attached figures, the following labels are used:

[0037] 100, 200: Traffic signal system

[0038] 110, 210: Traffic signal lights

[0039] 120: Traffic light controller

[0040] 130: Power Stabilizer Module

[0041] 111~113, 211~213: Light-emitting device

[0042] 111A, 112A, 113A: Power supply modules

[0043] 111B, 112B, 113B: Power distribution modules

[0044] 111C, 112CA, 112C: Light-emitting components

[0045] 111D, 112DA, 113D: Controller

[0046] 111E, 112EA, 113E: Measuring instruments

[0047] 114: Wireless communication module

[0048] 131: Power Output Unit

[0049] 132: Energy storage unit

[0050] 215: Power Distribution Module

[0051] D: Drive signal

[0052] I1: Alternating current

[0053] I2: DC power

[0054] I21: First DC power

[0055] I22: Second DC power supply

[0056] I3: Energy Storage

[0057] S1, S2: Drive information

[0058] S3: Luminous intensity information

[0059] S4: Driver error signal

[0060] S5: Abnormal light intensity signal

[0061] S110~S130, S210~S260: Steps

[0062] T: Drive cycle

[0063] T 111 ,T 112 ,T 113 : Driving range

[0064] T S Power supply interval Detailed Implementation

[0065] Please refer to Figures 1A to 1E , Figure 1A A schematic diagram illustrating the power supply of a traffic light controller 120 to a light-emitting device 111 in a traffic signal system 100 according to an embodiment of the present invention is shown. Figure 1B Draw Figure 1A A schematic diagram showing the power supply of the traffic light controller 120 to the light-emitting device 112. Figure 1C Draw Figure 1A A schematic diagram showing the power supply of the traffic light controller 120 to the light-emitting device 113. Figure 1D Draw Figure 1A A schematic diagram showing the power supply module 130 supplying power to several light-emitting devices 111-113 of the traffic signal light fixture 110, and... Figure 1E Draw Figure 1A The timing diagram of the control of traffic light controller 120 to traffic signal lights 110.

[0066] like Figures 1A to 1C As shown, the traffic signal system 100 includes a traffic signal light fixture 110, a traffic light controller 120, and a power stabilization module 130. The traffic signal light fixture 110 includes several light-emitting devices 111-113 and a wireless communication module 114. Each light-emitting device 111-113 includes a light-emitting element, a power distribution module, a power module, a controller, and a measuring device. In each light-emitting device, the power module converts alternating current I1 (e.g., AC mains power) into direct current I2 and supplies the direct current I2 to the light-emitting element and the power distribution module. The controller is electrically coupled to the power distribution module. The measuring device is electrically coupled to the power distribution module and the power module. When a selected light-emitting device receives alternating current I1, its power distribution module supplies direct current I2 to the selected device's controller and measuring device, as well as to the power distribution modules of the other light-emitting devices. Thus, as long as any of the light-emitting devices 111-113 receives alternating current I1 (is powered), the controllers and measuring devices of the other light-emitting devices can be powered and operate normally.

[0067] Taking the light-emitting device 111 as an example, such as Figure 1A As shown, the light-emitting device 111 includes a power module 111A, a power distribution module 111B, a light-emitting element 111C, a controller 111D, and a measuring device 111E. When the light-emitting device 111 (the selected device) receives AC power I1 (corresponding to...) Figure 1E driving range T 111 The power module 111A converts AC power I1 into DC power I2 and supplies DC power I2 to the light-emitting device 111C and the power distribution module 111B. The controller 111D is electrically coupled to the power distribution module 111B and the measuring device 111E. The measuring device 111E is electrically coupled to the power distribution module 111B and the power module 111A. When the light-emitting device 111 (the selected device) receives AC power I1, the power distribution module 111B of the light-emitting device 111 supplies DC power I2 to the controller 111D, the measuring device 111E, and the power distribution modules 112B and 113B of the other light-emitting devices 112-113. Thus, as long as the light-emitting device 111 is powered, the controllers 112D-113D and the measuring devices 112E-113E of the other light-emitting devices 112-113 can also be powered and operate normally.

[0068] The measuring device 111E can measure drive information S1 and S2. Drive information S1 includes, for example, the current data of AC power I1 received by the power module 111A, while drive information S2 includes, for example, the voltage and / or current data of DC power I2 driving the light-emitting element 111C.

[0069] like Figure 1B As shown, the light-emitting device 112 includes a power module 112A, a power distribution module 112B, a light-emitting element 112C, a controller 112D, and a measuring device 112E. The light-emitting device 112 receives AC power I1 (corresponding to...). Figure 1E driving range T 112 Afterwards, the flow of AC current I1 through the light-emitting device 112 is similar to that of the aforementioned light-emitting device 111, and will not be repeated here. Thus, as long as the light-emitting device 112 is powered, the controllers 111D and 113D and the measuring devices 111E and 113E of the other light-emitting devices 111 and 113 can also be powered and operate normally. Similarly, the measuring device 112E can measure drive information S1 and S2. Drive information S2, for example, includes current data of AC current I1 received by the power module 112A, and drive information S2, for example, includes voltage and / or current data of DC current I2 driving the light-emitting element 112C.

[0070] like Figure 1CAs shown, the light-emitting device 113 includes a power module 113A, a power distribution module 113B, a light-emitting element 113C, a controller 113D, and a measuring device 113E. The light-emitting device 113 receives AC power I1 (corresponding to...) Figure 1E driving range T 113 Afterwards, the flow of AC current I1 through the light-emitting device 113 is similar to that of the aforementioned light-emitting device 111, and will not be repeated here. Thus, as long as the light-emitting device 113 is powered, the controllers 111D and 112D and the measuring devices 111E and 112E of the other light-emitting devices 111 and 112 can also be powered and operate normally. Similarly, the measuring device 113E can measure drive information S1 and S2. Drive information S2, for example, includes current data of AC current I1 received by the power module 113A, and drive information S2, for example, includes voltage and / or current data of DC current I2 driving the light-emitting element 113C.

[0071] The aforementioned controller is, for example, a physical circuit formed using semiconductor manufacturing processes. The aforementioned measuring device is, for example, a sensor that can acquire or detect drive information S1 and S2, etc.

[0072] In one embodiment, the light-emitting elements of each light-emitting device can emit different colors of light. For example, the light-emitting element 111C of light-emitting device 111 can emit one of red, orange, and green light; the light-emitting element 112C of light-emitting device 112 can emit another of red, orange, and green light; and the light-emitting element 113C of light-emitting device 113 can emit the remaining colors of red, orange, and green light. Furthermore, the embodiments of the present invention do not limit the number of light-emitting devices; they can be fewer than three or more than three. In another embodiment, the color of light emitted by the light-emitting element can be a color other than red, orange, and green light.

[0073] like Figure 1A As shown, in each light-emitting device, the light-emitting element is electrically coupled to the controller, which can transmit the light-emitting brightness information of the light-emitting element to the controller.

[0074] Taking the light-emitting device 111 as an example, such as Figure 1A As shown, the light-emitting element 111C is electrically coupled to the controller 111D, and can transmit the light emission brightness information S3 of the light-emitting element 111C to the controller 111D. Taking the light-emitting device 112 as an example, as... Figure 1B As shown, the light-emitting element 112C is electrically coupled to the controller 112D, and can transmit the light emission brightness information S3 of the light-emitting element 112C to the controller 112D. Taking the light-emitting device 113 as an example, such as Figure 1C As shown, the light-emitting element 113C is electrically coupled to the controller 113D, and can transmit the light emission brightness information S3 of the light-emitting element 113C to the controller 113D.

[0075] The controller can transmit the received information to the wireless communication module 114. Taking the light-emitting device 111 as an example, such as... Figure 1A As shown, after receiving the driving information S1, S2 and the luminance information S3 from the light-emitting device 111, the controller 111D can transmit this information to the wireless communication module 114. Taking the light-emitting device 112 as an example, such as... Figure 1B As shown, after receiving the driving information S1, S2 and the luminance information S3 from the light-emitting device 112, the controller 112D can transmit this information to the wireless communication module 114. Taking the light-emitting device 113 as an example, such as... Figure 1C As shown, after receiving the driving information S1, S2 and the light emission brightness information S3 from the light-emitting device 113, the controller 113D can transmit this information to the wireless communication module 114.

[0076] In each light-emitting device, the controller is used to: receive driving information detected by the corresponding measuring device; obtain the difference between the driving information and the driving default value; determine whether the difference exceeds a driving tolerance range; and generate an abnormal signal when the difference exceeds the driving tolerance range. The aforementioned driving default value can be pre-stored in the controller, or the driving default value can be stored in a memory, and the controller can access the driving default value in the memory. Embodiments of the present invention do not limit the driving default value; the driving tolerance range is, for example, a proportion of the driving default value, such as a real number between 1% and 10%.

[0077] Taking the light-emitting device 111 as an example, such as Figure 1A As shown, the controller 111D of the light-emitting device 111 is used to: receive the driving information (S1 and / or S2) detected by the measuring device 111E; obtain the difference between the driving information (S1 and / or S2) and the driving default value; determine whether the difference exceeds the driving tolerance range; and generate a driving abnormality signal S4 when the difference exceeds the driving tolerance range. When the difference does not exceed the driving tolerance range, the controller 111D may not issue a driving abnormality signal S4. In another embodiment, regardless of whether the difference exceeds the driving tolerance range, the controller 111D can transmit the driving information (S1 and / or S2) to the wireless communication module 114. Figure 1B As shown, the controller 112D of the light-emitting device 112 can perform the same or similar actions, which will not be described in detail here. Figure 1C As shown, the controller 113D of the light-emitting device 113 can perform the same or similar actions, which will not be described in detail here.

[0078] In each light-emitting device, the controller is further configured to: receive luminance information of the corresponding light-emitting element; obtain a difference between the luminance information and a default luminance value; determine whether the difference exceeds an allowable luminance range; and, when the difference exceeds the allowable luminance range, generate a luminance abnormality signal. The aforementioned default luminance value may be pre-stored in the controller, or the default luminance value may be stored in memory, and the controller may access the default value in the memory. This embodiment of the invention does not limit the default luminance value; the allowable luminance range is, for example, a proportion of the default luminance value, such a proportion being, for example, a real number between 1% and 10%.

[0079] Taking the light-emitting device 111 as an example, such as Figure 1A As shown, the controller 111D of the light-emitting device 111 is further configured to: receive the light emission brightness information S3 of the light-emitting element 111C; obtain the difference between the light emission brightness information S3 and the default light emission brightness value; determine whether the difference exceeds the allowable range of light emission brightness; and, when the difference exceeds the allowable range of light emission brightness, generate a light emission brightness abnormality signal S5. When the difference does not exceed the allowable range of light emission brightness, the controller 111D may not issue a light emission brightness abnormality signal S5. The controller 111D can transmit the light emission brightness abnormality signal S5 to the wireless communication module 114. In another embodiment, regardless of whether the difference exceeds the allowable range of light emission brightness, the controller 111D can transmit the light emission brightness information S3 to the wireless communication module 114. Figure 1B As shown, the controller 112D of the light-emitting device 112 can perform the same or similar actions, which will not be described in detail here. Figure 1C As shown, the controller 113D of the light-emitting device 113 can perform the same or similar actions, which will not be described in detail here.

[0080] In addition to the aforementioned information, the controller of each light-emitting device can obtain information such as the light-emitting time, number of damaged components and / or damage ratio from the measuring device, the light-emitting component, the driving information S1, S2 and / or the light-emitting brightness information S3, and transmit such information to the wireless communication module 114.

[0081] In summary, as long as the selected light-emitting devices are powered, the controllers and measuring instruments of the other light-emitting devices can also be powered. Therefore, within the driving range (powered range) of the selected light-emitting devices, the controllers and measuring instruments of each light-emitting device can normally and frequently obtain information from the light-emitting components and power modules.

[0082] like Figures 1A to 1CAs shown, the wireless communication module 114 can employ wireless communication technology to communicate with a management platform or an external electronic device (not shown), such as a server, computer, or smartphone. The wireless communication module 114 can transmit received signals from various light-emitting devices (e.g., drive information S1, S2, light intensity information S3, drive abnormality signal S4, and / or light intensity abnormality signal S5) to the external electronic device. Operators can monitor the actual status of the traffic signal lights 110 through the server.

[0083] like Figures 1A to 1C As shown, in each light-emitting device, when the light-emitting device (selected device) receives AC current I1 (corresponding to...) Figure 1E driving range T 113 The power module can provide DC power I2 to the wireless communication module 114 so that the wireless communication module 114 can operate normally, for example, to transmit the received signals from each light-emitting device (e.g., drive information S1, S2, light emission brightness information S3, drive abnormal signal S4 and / or light emission brightness abnormal signal S5) to external electronic devices.

[0084] like Figure 1E As shown, the traffic light controller 120 can output a drive signal D, so that the light-emitting elements of each light-emitting device of the traffic signal light fixture 110 emit light in the corresponding drive range (the drive range of the selected device) (and do not emit light in non-corresponding drive ranges). Figure 1C Only one drive cycle T is shown, but the drive signal D can have multiple consecutive drive cycles T or multiple drive cycles T of different lengths. In one drive cycle T of the drive signal D, the drive interval T... 111 This indicates the driving time T of the traffic light controller 120 to the light-emitting device 111. 112 This indicates the driving time of the traffic light controller 120 on the light-emitting device 112, and the driving interval T 113 This indicates the driving time of the traffic light controller 120 for the light-emitting device 113. Although not shown, there is also a short power supply interval T between two adjacent driving intervals. S In power supply interval T S Inside, the light-emitting device is not powered. However, during power supply interval T... S Inside, the power stabilization module 130 can supply power to each light-emitting device to maintain its normal operation. Further examples are given below.

[0085] like Figures 1A to 1CAs shown, the power distribution modules of each light-emitting device are electrically coupled to the power stabilization module 130. For example, the power distribution module 111B of light-emitting device 111, the power distribution module 112B of light-emitting device 112, and the power distribution module 113B of light-emitting device 113 are electrically coupled to the power stabilization module 130. The power distribution modules can provide DC power I2 to the power stabilization module 130 for storage. For example, when the traffic light controller 120 provides AC power I1 to the light-emitting device 111 (e.g.... Figure 1A As shown), the power distribution module 111B of the light-emitting device 111 can provide DC power I2 to the power stabilization module 130 for storage. When the traffic light controller 120 provides AC power I1 to the light-emitting device 112 (as shown), Figure 1B As shown), the power distribution module 112B of the light-emitting device 112 can provide DC power I2 to the power stabilization module 130 for storage. When the traffic light controller 120 provides AC power I1 to the light-emitting device 113 (as shown), Figure 1C As shown, the power distribution module 113B of the light-emitting device 113 can provide DC power I2 to the power stabilization module 130 for storage.

[0086] like Figures 1A to 1C As shown, the power stabilization module 130 includes a power output unit 131 and an energy storage unit 132. The power output unit 131 is electrically coupled to the energy storage unit 132. The power output unit 131 can provide DC power I2 to the energy storage unit 132 for storage (energy storage I3). The power output unit 131 is, for example, a physical circuit formed using a semiconductor process, while the energy storage unit 132 is, for example, a battery.

[0087] like Figure 1D As shown, when all light-emitting devices 111-113 do not receive AC power I1 (for example, in the state of...), Figure 1E Power supply interval T S When the power supply stabilization module 130 is in operation, it can provide stored energy I3 (e.g., DC power) to the power distribution modules 111B-113B of all light-emitting devices 111-113. Thus, even during power supply interval T... S All the internal light-emitting devices 111 to 113 are not driven by AC power I1, but are still powered by the power stabilization module 130 and can operate normally.

[0088] like Figure 1D As shown, after receiving the stored energy I3, the power distribution modules 111B to 113B can use similar or identical methods as described above. Figures 1A to 1C In this manner, power is supplied to the controller, measuring device, and wireless communication module. Taking the light-emitting device 111 as an example, such as... Figure 1AAs shown, after receiving the stored energy I3, the power distribution module 111B can provide the stored energy I3 to the controller 111D and the measuring instrument 111E. The controller 111D and the measuring instrument 111E can perform the same actions as... Figure 1A The action. Taking the light-emitting device 112 as an example, such as Figure 1B As shown, after receiving the stored energy I3, the power distribution module 112B can provide the stored energy I3 to the controller 112D and the measuring instrument 112E. The controller 112D and the measuring instrument 112E can perform the same actions as... Figure 1A The action. Taking the light-emitting device 113 as an example, such as Figure 1C As shown, after receiving the stored energy I3, the power distribution module 113B can provide the stored energy I3 to the controller 113D and the measuring instrument 113E. The controller 113D and the measuring instrument 113E can perform the same actions as... Figure 1A The action.

[0089] like Figure 1D As shown, when all light-emitting devices 111-113 do not receive AC power I1 (for example, in the state of...), Figure 1E Power supply interval T S When power supply is interrupted, the power stabilization module 130 can provide stored power I3 (e.g., DC power) to the wireless communication module 114 to enable the wireless communication module 114 to operate normally, for example, to transmit received signals from various light-emitting devices (e.g., drive information S1, S2, light emission brightness information S3, drive abnormal signal S4, and / or light emission brightness abnormal signal S5) to external electronic devices. Thus, even during power supply interval T... S Even though all the internal light-emitting devices 111 to 113 are not driven by AC power I1, the power stabilization module 130 still supplies power to the wireless communication module 114, enabling the wireless communication module 114 to operate normally.

[0090] In summary, regardless of whether the traffic signal light 110 is driven by AC power I1, the measuring devices and controllers of each light-emitting device of the traffic signal light 110 are always in a powered state. Furthermore, when one of the selected light-emitting devices of the traffic signal light 110 is driven by AC power I1, the selected device supplies power to its own controller and measuring device, as well as the controllers and measuring devices of other light-emitting devices. When the traffic signal light 110 is not driven by AC power I1, the power stabilization module 130 supplies power to the controllers and measuring devices of each light-emitting device.

[0091] In detail, the measuring device and controller require a certain amount of time to start up from an unpowered state and reach a normal operating state, creating a detection gap. Since the measuring device and controller of each light-emitting device in this embodiment of the invention can be frequently powered, they can be frequently in a normal operating state, avoiding detection gaps. Furthermore, existing measuring devices and controllers require sufficient power to start from an unpowered state and reach a normal operating state; if the power supply time is very short (e.g., see...),... Figure 1E driving range T 112 If the controller fails to operate, it will not function. However, since the measuring instrument and controller of this embodiment are frequently powered, there is no need to consider whether the activation time is sufficient.

[0092] Please refer to Figures 2A to 2C , Figure 2A A schematic diagram illustrating the power supply of a traffic light controller 120 to a light-emitting device 211 in a traffic signal system 200 according to another embodiment of the present invention is shown. Figure 2B Draw Figure 2A A schematic diagram showing the power supply of the traffic light controller 120 to the light-emitting device 212, and... Figure 2C Draw Figure 2A A schematic diagram showing the traffic light controller 120 supplying power to the light-emitting devices 213. The traffic signal system 200 includes traffic signal lights 210, a traffic light controller 120, and a power stabilization module 130. The traffic signal lights 210 include several light-emitting devices 211-213, a wireless communication module 114, and a power distribution module 215. The power distribution module 215 is, for example, a physical circuit formed using a semiconductor manufacturing process.

[0093] Unlike the aforementioned traffic signal system 100, the controllers and measuring devices of each light-emitting device in the traffic signal system 200 of this embodiment are all powered by the power stabilization module 130, as further illustrated below.

[0094] like Figures 2A to 2C As shown, each of the light-emitting devices 211-213 includes a light-emitting element, a power module, a controller, and a measuring device. The power module converts AC power I1 into a first DC power I21 and supplies the first DC power I21 to the light-emitting element. The measuring device is electrically coupled to the light-emitting element and the power module. The power distribution module 215 converts AC power I1 into a second DC power I22 and supplies the second DC power I22 to the power stabilization module 130. The power stabilization module 130 stores the second DC power I22 as a stored charge I3 and supplies the stored charge I3 to the controller and measuring device of each light-emitting device. Thus, the controller and measuring device of each light-emitting device can continuously receive power from the power stabilization module 130 and operate normally.

[0095] Taking the light-emitting device 211 as an example, such as Figure 2AAs shown, the light-emitting device 211 includes a power module 111A, a light-emitting element 111C, a controller 111D, and a measuring device 111E. The power module 111A converts AC power I1 into a first DC power I21 and supplies the first DC power I21 to the light-emitting element 111C. The measuring device 111E is electrically coupled to the power module 111A and the light-emitting element 111C. The power distribution module 215 converts AC power I1 into a second DC power I22 and supplies the second DC power I22 to the power stabilization module 130. The power stabilization module 130 stores the second DC power I22 as stored energy I3 and supplies the stored energy I3 to the controllers 111D-113D and the measuring devices 111E-113E of the light-emitting devices 211-213. In this way, the controllers 111D to 113D and the measuring instruments 111E to 113E of the light-emitting devices 111 to 113 can receive power from the power stabilization module 130 regularly and can operate normally regularly.

[0096] Taking the light-emitting device 212 as an example, such as Figure 2B As shown, the light-emitting device 212 includes a power module 112A, a light-emitting element 112C, a controller 112D, and a measuring device 112E. The measuring device 112E is electrically coupled to the power module 112A and the light-emitting element 112C. The power module 112A, the measuring device 112E, and the light-emitting element 112C can perform similar or identical operations, which will not be described in detail here. In this way, the controllers 111D to 113D and the measuring devices 111E to 113E of the light-emitting devices 211 to 213 can receive power from the power stabilization module 130 regularly and can operate normally regularly.

[0097] Taking the light-emitting device 213 as an example, such as Figure 2C As shown, the light-emitting device 213 includes a power module 113A, a light-emitting element 113C, a controller 113D, and a measuring device 113E. The measuring device 113E is electrically coupled to the power module 113A and the light-emitting element 113C. The power module 113A, the measuring device 113E, and the light-emitting element 113C can perform similar or identical operations, which will not be described in detail here. In this way, the controllers 111D-113D and the measuring devices 111E-113E of the light-emitting devices 211-213 can receive power from the power stabilization module 130 regularly and can operate normally regularly.

[0098] In this embodiment, the power distribution module 215 can convert AC power I1 into a second DC power I22. However, in another embodiment, the power distribution module 215 may not have an AC-to-DC function; correspondingly, the traffic signal system 200 further includes a power module (not shown), which is connected to the power distribution module 215 and the traffic light controller 120, and is used to convert the AC power I1 provided by the traffic light controller 120 into the second DC power I22, and provide the second DC power I22 to the power stabilization module 130.

[0099] In addition to providing unified power to the controllers and measuring devices of the various light-emitting devices in the traffic signal system 200, the power stabilization module 130 can also provide energy storage I3 to the wireless communication module 114.

[0100] Please refer to Figure 3 Its illustration Figures 1A to 1D A flowchart of a traffic signal lighting status detection method for a traffic signal system 100.

[0101] In step S110, when the selected devices 111 to 113 receive AC power I1, the power module of the selected device converts AC power I1 into DC power I2.

[0102] In step S120, the selected candidate's power module supplies DC power I2 to the selected candidate's light-emitting device and power distribution module.

[0103] In step S130, the power distribution module of the selected entity provides DC power I2 to the power distribution modules of the selected entity's controller and measuring instruments and the remaining light-emitting devices 111-113.

[0104] Other embodiments of the traffic signal lighting status detection method of the traffic signal system 100 of the present invention have been described above and will not be repeated here.

[0105] Please refer to Figure 4 Its illustration Figures 2A to 2C A flowchart of a traffic signal system 200 for detecting the status of traffic signal lights.

[0106] In step S210, when the selected devices 211 to 213 receive AC power I1, the power module of the selected device converts AC power I1 into first DC power I21.

[0107] In step S220, the power module of the selected candidate supplies the first DC power I21 to the light-emitting component of the selected candidate.

[0108] In step S230, the power distribution module 215 converts the AC power I1 into the second DC power I22.

[0109] In step S240, the power distribution module 215 provides the second DC power I22 to the power stabilization module 130.

[0110] In step S250, the power stabilization module 130 stores the second DC power I22 as stored power I3.

[0111] In step S260, the power stabilization module 130 provides the stored power I3 to the controllers 111D to 113D and the measuring instruments 111E to 113E of each light-emitting device 211 to 213.

[0112] Other embodiments of the traffic signal lighting status detection method of the traffic signal system 200 of the present invention have been described above and will not be repeated here.

[0113] In summary, this invention provides a traffic signal light fixture, a traffic signal system, and a method for detecting the status of the traffic signal light fixture using the same. The controllers and / or measuring devices of each light-emitting device in the traffic signal light fixture can be continuously powered (received power) and operate normally without needing to consider whether the enable time is sufficient. In one embodiment, when a selected light-emitting device receives AC power, it supplies power to the controllers and / or measuring devices of all light-emitting devices and simultaneously charges the power stabilization module. When no light-emitting device receives AC power, the power stabilization module supplies power (stores energy) to the controllers and / or measuring devices of all light-emitting devices. In another embodiment, when a selected light-emitting device receives AC power, it charges the power stabilization module, which then supplies power (stores energy) to the controllers and / or measuring devices of all light-emitting devices. Thus, all light-emitting devices can be continuously powered, ensuring that their components (e.g., measuring devices and / or controllers) operate normally.

[0114] In summary, although the present invention has been disclosed above with reference to embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

[0115] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the claims of the present invention.

Claims

1. A traffic signal light, characterized in that, include: Multiple light-emitting devices, each light-emitting device comprising: One light-emitting component; A power distribution module; A power module for converting alternating current into direct current and supplying the direct current to the light-emitting element and the power distribution module; A measuring instrument, electrically coupled to the power distribution module and the light-emitting element; and A controller electrically coupled to the power distribution module and the measuring instrument; When a selected device of the light-emitting device receives the alternating current, the power distribution module of the selected device provides the direct current to the controller and the measuring device of the selected device and the power distribution modules of the rest of the light-emitting device; In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. The controller of each light-emitting device is used to: receive driving information detected by the corresponding measuring device; obtain a difference between the driving information and a driving default value; determine whether the difference exceeds a driving tolerance range; and generate a driving abnormality signal when the difference exceeds the tolerance range.

2. The traffic signal light fixture according to claim 1, characterized in that, The power distribution module of each light-emitting device is electrically coupled to a power stabilization module; the power distribution module of the selected device is used to provide the DC power to the power stabilization module for storage.

3. The traffic signal light fixture according to claim 1, characterized in that, Each of the light-emitting devices has its power distribution module electrically coupled to a power stabilization module; when none of the light-emitting devices receive the AC power, the power stabilization module provides a stored power to the power distribution modules of all the light-emitting devices.

4. The traffic signal light fixture according to claim 1, characterized in that, Including: A wireless communication module is electrically coupled to the power distribution module and a power stabilization module of each of the light-emitting devices; When the selected device receives the alternating current, the power distribution module of the selected device provides the direct current to the wireless communication module; When none of the light-emitting devices receive the AC power, the power stabilization module provides a stored power to the wireless communication module.

5. A traffic signal light, characterized in that, include: Multiple light-emitting devices, each light-emitting device comprising: One light-emitting component; A power distribution module; A power module for converting alternating current into direct current and supplying the direct current to the light-emitting element and the power distribution module; A measuring instrument, electrically coupled to the power distribution module and the light-emitting element; and A controller electrically coupled to the power distribution module and the measuring instrument; When a selected device of the light-emitting device receives the alternating current, the power distribution module of the selected device provides the direct current to the controller and the measuring device of the selected device and the power distribution modules of the rest of the light-emitting device; In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. The controller of each light-emitting device is used to: receive light-emitting brightness information of the corresponding light-emitting element; obtain a difference between the light-emitting brightness information and a default light-emitting brightness value; determine whether the difference exceeds an allowable range of light-emitting brightness; and generate a light-emitting brightness abnormality signal when the difference exceeds the allowable range of light-emitting brightness.

6. The traffic signal light fixture according to claim 5, characterized in that, The power distribution module of each light-emitting device is electrically coupled to a power stabilization module; the power distribution module of the selected device is used to provide the DC power to the power stabilization module for storage.

7. The traffic signal light fixture according to claim 5, characterized in that, Each of the light-emitting devices has its power distribution module electrically coupled to a power stabilization module; when none of the light-emitting devices receive the AC power, the power stabilization module provides a stored power to the power distribution modules of all the light-emitting devices.

8. The traffic signal light fixture according to claim 5, characterized in that, Including: A wireless communication module is electrically coupled to the power distribution module and a power stabilization module of each of the light-emitting devices; When the selected device receives the alternating current, the power distribution module of the selected device provides the direct current to the wireless communication module; When none of the light-emitting devices receive the AC power, the power stabilization module provides a stored power to the wireless communication module.

9. A traffic signal light fixture, characterized in that, include: Multiple light-emitting devices, each light-emitting device comprising: One light-emitting component; A power module for converting an alternating current into a first direct current and supplying the first direct current to the light-emitting element; A measuring instrument, electrically coupled to the light-emitting element and the power module; and A controller, electrically coupled to the measuring instrument; A power distribution module is used to receive the AC power and convert it into a second DC power before supplying it to a power stabilization module; The power stabilization module is used to store the second DC power as a storage energy and to supply the storage energy to the controller and the measuring device of each of the light-emitting devices. In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices is selected in each driving interval. The controller of each light-emitting device is used to: receive driving information detected by the corresponding measuring device; obtain a difference between the driving information and a driving default value; determine whether the difference exceeds a driving tolerance range; and generate a driving abnormality signal when the difference exceeds the tolerance range.

10. The traffic signal light fixture according to claim 9, characterized in that, Including: A wireless communication module is electrically coupled to the power stabilization module; The power stabilization module is further used to provide the stored energy to the wireless communication module.

11. A traffic signal light fixture, characterized in that, include: Multiple light-emitting devices, each light-emitting device comprising: One light-emitting component; A power module for converting an alternating current into a first direct current and supplying the first direct current to the light-emitting element; A measuring instrument, electrically coupled to the light-emitting element and the power module; and A controller, electrically coupled to the measuring instrument; A power distribution module is used to receive the AC power and convert it into a second DC power before supplying it to a power stabilization module; The power stabilization module is used to store the second DC power as a storage energy and to supply the storage energy to the controller and the measuring device of each of the light-emitting devices. In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices is selected in each driving interval. The controller of each light-emitting device is used to: receive light-emitting brightness information of the corresponding light-emitting element; obtain a difference between the light-emitting brightness information and a default light-emitting brightness value; determine whether the difference exceeds an allowable range of light-emitting brightness; and generate a light-emitting brightness abnormality signal when the difference exceeds the allowable range of light-emitting brightness.

12. The traffic signal light fixture according to claim 11, characterized in that, Including: A wireless communication module is electrically coupled to the power stabilization module; The power stabilization module is used to supply the stored energy to the wireless communication module.

13. A traffic signal system, characterized in that, include: A traffic signal light as described in any one of claims 1 to 12; and A traffic light controller is used to provide the alternating current to the traffic signal light.

14. A method for detecting the status of traffic signal lights, characterized in that, include: When one of the selected multiple light-emitting devices receives an alternating current, a power module of that selected device converts the alternating current into a direct current. The power module of the selected candidate provides DC power to a light-emitting element and a power distribution module of the selected candidate; The power distribution module of the selected candidate provides DC power to a controller and a measuring device of the selected candidate, as well as the power distribution module of the remaining multiple light-emitting devices; In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. This further includes: receiving a driving information detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; determining whether the difference exceeds a driving tolerance range; and generating a driving abnormality signal when the difference exceeds the tolerance range.

15. The traffic signal light status detection method according to claim 14, characterized in that, Including: The selected power distribution module provides the DC power to the power stabilization module for storage.

16. The traffic signal light status detection method according to claim 14, characterized in that, Including: When none of the light-emitting devices receive the AC power, a power stabilization module provides a stored power to the power distribution module of all the light-emitting devices.

17. The traffic signal light status detection method according to claim 14, characterized in that, Including: When the selected device receives the alternating current, the power distribution module of the selected device provides the direct current to a wireless communication module; as well as When all the light-emitting devices fail to receive the AC power, a power stabilization module provides a stored power to the wireless communication module; The wireless communication module is electrically coupled to the power distribution module and the power stabilization module of each of the light-emitting devices.

18. A method for detecting the status of traffic signal lights, characterized in that, include: When one of the selected multiple light-emitting devices receives an alternating current, a power module of that selected device converts the alternating current into a direct current. The power module of the selected candidate provides DC power to a light-emitting element and a power distribution module of the selected candidate; The power distribution module of the selected candidate provides DC power to a controller and a measuring device of the selected candidate, as well as the power distribution module of the remaining multiple light-emitting devices; In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. This further includes: receiving luminance information of the corresponding light-emitting element; obtaining a difference between the luminance information and a default luminance value; determining whether the difference exceeds an allowable range of luminance; and generating an abnormal luminance signal when the difference exceeds the allowable range of luminance.

19. The traffic signal light status detection method according to claim 18, characterized in that, Including: The selected power distribution module provides the DC power to the power stabilization module for storage.

20. The traffic signal light status detection method according to claim 18, characterized in that, Including: When none of the light-emitting devices receive the AC power, a power stabilization module provides a stored power to the power distribution module of all the light-emitting devices.

21. The traffic signal light status detection method according to claim 18, characterized in that, Including: When the selected device receives the alternating current, the power distribution module of the selected device provides the direct current to a wireless communication module; as well as When all the light-emitting devices fail to receive the AC power, a power stabilization module provides a stored power to the wireless communication module; The wireless communication module is electrically coupled to the power distribution module and the power stabilization module of each of the light-emitting devices.

22. A method for detecting the status of traffic signal lights, characterized in that, include: When a candidate of multiple light-emitting devices receives an alternating current, a power module of the candidate converts the alternating current into a first direct current. The power module of the selected candidate supplies the first DC power to a light-emitting component of the selected candidate; A power distribution module converts the AC power into a second DC power. The power distribution module provides the second DC power to a power stabilization module. The power stabilization module stores the second DC power as a stored energy source; and The power stabilization module provides the stored energy to a controller and a measuring device for each of the light-emitting devices. In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. This further includes: receiving a driving information detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; determining whether the difference exceeds a driving tolerance range; and generating a driving abnormality signal when the difference exceeds the tolerance range.

23. The traffic signal light status detection method according to claim 22, characterized in that, Including: The power stabilization module supplies the stored energy to the wireless communication module.

24. A method for detecting the status of traffic signal lights, characterized in that, include: When a candidate of multiple light-emitting devices receives an alternating current, a power module of the candidate converts the alternating current into a first direct current. The power module of the selected candidate supplies the first DC power to a light-emitting component of the selected candidate; A power distribution module converts the AC power into a second DC power. The power distribution module provides the second DC power to a power stabilization module. The power stabilization module stores the second DC power as a stored energy source; and The power stabilization module provides the stored energy to a controller and a measuring device for each of the light-emitting devices. In this driving cycle, the plurality of light-emitting devices receive the alternating current in different driving intervals, such that only one of the plurality of light-emitting devices in each driving interval is selected. This further includes: receiving luminance information of the corresponding light-emitting element; obtaining a difference between the luminance information and a default luminance value; determining whether the difference exceeds an allowable range of luminance; and generating an abnormal luminance signal when the difference exceeds the allowable range of luminance.

25. The traffic signal light status detection method according to claim 24, characterized in that, Including: The power stabilization module supplies the stored energy to the wireless communication module.

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