CN117202452A - Traffic signal system, traffic signal lamp and state detection method thereof - Google Patents
Traffic signal system, traffic signal lamp and state detection method thereof Download PDFInfo
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Abstract
The invention discloses a traffic signal system, a traffic signal lamp and a state detection method thereof. Each light-emitting device comprises a light-emitting piece, a power distribution module, a power module, a controller and a measuring device. The power module is used for converting alternating current into direct current and providing the direct current for the luminous element and the power distribution module. The measuring device is electrically coupled with the power distribution module and the light emitting piece. The controller is electrically coupled to the power distribution module and the measuring device. When the selected person of the light emitting devices receives the alternating current, the power distribution module of the selected person provides the direct current to the controller and the measuring device of the selected person and the power distribution modules of the rest of the light emitting devices.
Description
Technical Field
The invention relates to a traffic signal lamp, a traffic signal system and a traffic signal lamp state detection method applying the traffic signal lamp.
Background
Currently, when a traffic light is damaged, a passer-by is used for notifying related units of the damage message, and then the related units are used for notifying maintenance personnel to perform on-site inspection and maintenance. However, the time from the failure of the traffic light to the completion of the repair may cause problems in traffic management. Therefore, providing an efficient method for detecting the status of traffic signal lamps is one of the continuous efforts of the industry.
Disclosure of Invention
Therefore, the present invention provides a traffic signal system, a traffic signal lamp and a status detection method thereof, which can improve the above-mentioned existing problems.
An embodiment of the invention provides a traffic signal lamp. The traffic signal lamp comprises a plurality of light emitting devices. Each light-emitting device comprises a light-emitting part, a power distribution module, a power module, a controller and a measuring device. The power module is used for converting alternating current into direct current and providing the direct current for the luminous element and the power distribution module. The measuring device is electrically coupled with the power distribution module and the light emitting piece. The controller is electrically coupled to the power distribution module and the measuring device. 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 measuring device of the selected one and the power distribution modules of the rest of the light emitting devices.
The power distribution module of each light-emitting device is electrically coupled with a power stabilizing module; the power distribution module of the selected person is used for providing the direct current to the power stabilization module for storage.
The power distribution module of each light-emitting device is electrically coupled with a power stabilizing module; when all the light emitting devices do not receive alternating current, the power supply stabilizing module provides power storage for the power supply distributing modules of all the light emitting devices.
Wherein the controller of each light emitting device is configured to: receiving a driving message detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; judging whether the difference exceeds a driving tolerance range; and generating a driving exception signal when the difference exceeds the allowable range.
Wherein the controller of each light emitting device is configured to: receiving a corresponding luminous brightness information of the luminous piece; obtaining a difference between the luminance information and a luminance default value; judging whether the difference exceeds a luminance tolerance range; and generating a luminance abnormality signal when the difference exceeds the allowable range of the luminance.
Wherein, further include: a wireless communication module electrically coupled to the power distribution module and a power stabilizing module of each light emitting device; when the selected person of the light-emitting device receives the alternating current, the power distribution module of the selected person provides the direct current to the wireless communication module; when all the light emitting devices do not receive alternating current, the power supply stabilizing module provides electricity for the wireless communication module.
Another embodiment of the present invention provides a traffic signal lamp. The traffic signal lamp comprises a plurality of light emitting devices. Each light-emitting device comprises a light-emitting piece, a power module, a measuring device and a controller. The power module is used for converting an alternating current into a first direct current and providing the first direct current for the luminous element. The measuring device is electrically coupled with the light emitting piece and the power module. The controller is electrically coupled to the measuring device. The power distribution module is used for receiving alternating current and converting the alternating current into a second direct current to be provided for a power stabilizing module. The power stabilizing module is used for storing the second direct current into a stored power and providing the stored power for the controller and the measuring device of each light-emitting device.
Wherein, further include: a wireless communication module electrically coupled to the power stabilizing module; the power stabilizing module is further used for providing the power storage to the wireless communication module.
Wherein the controller of each light emitting device is configured to: receiving a driving message detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; judging whether the difference exceeds a driving tolerance range; and generating a driving exception signal when the difference exceeds the allowable range.
Wherein the controller of each light emitting device is configured to: receiving a corresponding luminous brightness information of the luminous piece; obtaining a difference between the luminance information and a luminance default value; judging whether the difference exceeds a luminance tolerance range; and generating a luminance abnormality signal when the difference exceeds the allowable range of the luminance.
Another embodiment of the present invention provides a traffic signal system. The traffic signal system comprises a traffic light controller and the traffic signal lamp. The traffic light controller is used for providing alternating current to the traffic signal lamp.
Another embodiment of the present invention provides a method for detecting a status of a traffic signal lamp. The traffic signal lamp state detection method comprises the following steps: the power supply module converts alternating current into direct current and provides the direct current for the luminous element and the power supply distribution module; a measuring device for measuring the DC power; and 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 measuring device of the selected one and the power distribution modules of the rest of the light emitting devices.
Wherein, further include: the power distribution module of the selected person provides the direct current to the power stabilization module for storage.
Wherein, further include: when all the light emitting devices do not receive alternating current, a power supply stabilizing module provides power storage for the power supply distributing modules of all the light emitting devices.
Wherein, further include: receiving a driving message detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; judging whether the difference exceeds a driving tolerance range; and generating a driving exception signal when the difference exceeds the allowable range.
Wherein, further include: receiving a corresponding luminous brightness information of the luminous piece; obtaining a difference between the luminance information and a luminance default value; judging whether the difference exceeds a luminance tolerance range; and generating a luminance abnormality signal when the difference exceeds the allowable range of the luminance.
Wherein, further include: when the selected person of the light-emitting device receives the alternating current, the power distribution module of the selected person provides the direct current to a wireless communication module; and when all the light emitting devices do not receive alternating current, a power supply stabilizing module provides power for the wireless communication module; the wireless communication module is electrically coupled to the power distribution module and the power stabilizing module of each light emitting device.
Another embodiment of the present invention provides a method for detecting a status of a traffic signal lamp. The traffic signal lamp state detection method comprises the following steps: when a selected person of the light-emitting devices receives alternating current, a power module of the selected person converts the alternating current into first direct current; the power module of the selected person provides the first direct current to the luminous element of the selected person; a power distribution module for alternating current conversion into a second direct current; the power distribution module provides a second direct current to a power stabilization module; the power stabilizing module stores the second direct current into a power store; and the power supply stabilizing module provides the stored power to the controller and the measuring device of each light-emitting device.
Wherein, further include: the power stabilizing module provides the power to the wireless communication module.
Wherein, further include: receiving a driving message detected by the corresponding measuring device; obtaining a difference between the driving information and a driving default value; judging whether the difference exceeds a driving tolerance range; and generating a driving exception signal when the difference exceeds the allowable range.
Wherein, further include: receiving a corresponding luminous brightness information of the luminous piece; obtaining a difference between the luminance information and a luminance default value; judging whether the difference exceeds a luminance tolerance range; and generating a luminance abnormality signal when the difference exceeds the allowable range of the luminance.
For a better understanding of the above and other aspects of the invention, reference will now be made in detail to the following examples, examples of which are illustrated in the accompanying drawings.
Drawings
Fig. 1A is a schematic diagram of a traffic light controller of a traffic signal system for powering a light emitting device 111 according to an embodiment of the invention.
Fig. 1B is a schematic diagram illustrating the traffic light controller of fig. 1A supplying power to the light emitting device 112.
Fig. 1C is a schematic diagram illustrating the traffic light controller of fig. 1A supplying power to the light emitting device 113.
FIG. 1D is a schematic diagram of the power stabilizing module of FIG. 1A supplying power to a plurality of lighting devices of the traffic signal lamp.
FIG. 1E is a timing diagram illustrating the control of traffic signal lamps by the traffic light controller of FIG. 1A.
Fig. 2A is a schematic diagram showing a traffic light controller of a traffic signal system according to another embodiment of the invention for powering the light emitting device 211.
Fig. 2B is a schematic diagram of the traffic light controller of fig. 2A for powering the light emitting device 212.
Fig. 2C is a schematic diagram illustrating the traffic light controller of fig. 2A supplying power to the light emitting device 213.
Fig. 3 is a flowchart illustrating a traffic signal light status detection method of the traffic signal system of fig. 1A to 1D.
Fig. 4 is a flowchart illustrating a traffic signal light status detection method of the traffic signal system of fig. 2A-2C.
Wherein, the reference numerals:
100,200 traffic signal system
110,210 traffic signal lamp
120 traffic light controller
130 Power stabilization Module
111 ～ 113,211 ～ 213 luminous device
111A,112A,113A Power supply Module
111B,112B,113B Power distribution Module
111C,112CA,112C luminous element
111D,112DA,113D controllers
111E,112EA,113E, measuring device
114 wireless communication module
131 power supply output unit
132 electricity storage unit
215 power distribution module
D, driving signal
I1 alternating current
I2 direct current
I21:
i22:second direct current
I3 electricity storage
S1, S2 drive information
S3, luminous brightness information
S4, driving the abnormal signal
S5, abnormal signal of luminous brightness
S110-S130, S210-S260 steps
T: drive period
T 111 ,T 112 ,T 113 Drive interval
T S Interval of power supply
Detailed Description
Referring to fig. 1A to 1E, fig. 1A is a schematic diagram illustrating a traffic light controller 120 of a traffic signal system 100 powering a light emitting device 111 according to an embodiment of the invention, fig. 1B is a schematic diagram illustrating a traffic light controller 120 powering a light emitting device 112 of fig. 1A, fig. 1C is a schematic diagram illustrating a traffic light controller 120 powering a light emitting device 113 of fig. 1A, fig. 1D is a schematic diagram illustrating a power stabilizing module 130 powering a plurality of light emitting devices 111 to 113 of a traffic signal lamp 110 of fig. 1A, and fig. 1E is a timing chart illustrating a control of the traffic signal lamp 110 by the traffic light controller 120 of fig. 1A.
As shown in fig. 1A to 1C, the traffic signal system 100 includes a traffic signal lamp 110, a traffic light controller 120, and a power stabilization module 130. The traffic signal lamp 110 includes a plurality of light emitting devices 111-113 and a wireless communication module 114. The light emitting devices 111 to 113 each include a light emitting element, a power distribution module, a power module, a controller, and a measuring device. In each lighting device, the power module is used for converting alternating current I1 (such as commercial power) into direct current I2 and providing the direct current I2 to the lighting element and the power distribution module. The controller is electrically coupled to the power distribution module. The measuring device is electrically coupled with the power distribution module and the power module. When the selected person of the light emitting devices receives the alternating current I1, the power distribution module of the selected person provides the direct current I2 to the controller and the measuring device of the selected person and the power distribution modules of the rest of the light emitting devices. Thus, as long as any one of the light emitting devices 111-113 receives the alternating current I1 (is powered), the controllers and the measuring devices of the other light emitting devices can be powered, and can operate normally.
For example, as shown in fig. 1A, 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 subject) receives the alternating current I1 (corresponding to the driving section T of fig. 1E 111 ) The power module 111A can convert the alternating current I1 into the direct current I2 and provide the direct current I2 to the light emitting part 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 person) receives the alternating current I1, the power distribution module 111B of the light emitting device 111 provides the direct current I2 to the controller 111D and the measuring device 111E and the power distribution modules 112B and 113B of the remaining light emitting devices 112 to 113. Thus, as long as the light emitting device 111 is powered, the controllers 112D-113D and the measuring devices 112E-113E of the remaining light emitting devices 112-113 can be powered, and can operate normally.
The sensor 111E can measure the driving information S1 and S2. The driving information S1 is, for example, current data including the alternating current I1 received by the power module 111A, and the driving information S2 is, for example, voltage and/or current data including the direct current I2 driving the light emitting element 111C.
As shown in fig. 1B, 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 the alternating current I1 (corresponding to the driving interval T of fig. 1E 112 ) After that, the flow direction of the alternating current I1 passing through the light emitting device 112 is similar to that of the light emitting device 111, and will not be described again. 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 remaining light emitting devices 111 and 113 can be powered, so as to operate normally. Similarly, the sensor 112E can measure the driving information S1 and S2. The driving information S2 is, for example, current data including the alternating current I1 received by the power module 112A, and the driving information S2 is, for example, voltage and/or current data including the direct current I2 driving the light emitting device 112C.
As shown in fig. 1C, 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 the alternating current I1 (corresponding to the driving interval T of fig. 1E 113 ) After that, the flow direction of the alternating current I1 passing through the light emitting device 113 is similar to that of the light emitting device 111, and will not be described again. 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 remaining light emitting devices 111 and 112 can be powered, so as to operate normally. Similarly, the sensor 113E can measure the driving information S1 and S2. The driving information S2 is, for example, current data including the alternating current I1 received by the power module 113A, and the driving information S2 is, for example, voltage and/or current data including the direct current I2 driving the light emitting element 113C.
The controller is, for example, a physical circuit formed by a semiconductor process. The sensor may be, for example, a sensor (sensor) that may acquire or detect the driving information S1 and S2.
In one embodiment, the light emitting elements of each light emitting device can emit different color lights. For example, the light emitting element 111C of the light emitting device 111 may emit one of red light, orange light and green light, the light emitting element 112C of the light emitting device 112 may emit the other of red light, orange light and green light, and the light emitting element 113C of the light emitting device 113 may emit the rest of red light, orange light and green light. In addition, the embodiments of the present invention do not limit the number of light emitting devices, and may be less than 3 or more than 3. In another embodiment, the light emitted by the light emitting element may be other than red light, orange light and green light.
As shown in fig. 1A, in each light emitting device, the light emitting element is electrically coupled to the controller, and the light emitting brightness information of the light emitting element can be transmitted to the controller.
For example, as shown in fig. 1A, the light emitting device 111C is electrically coupled to the controller 111D, and the light emitting brightness information S3 of the light emitting device 111C can be transmitted to the controller 111D. For example, as shown in fig. 1B, the light emitting device 112C is electrically coupled to the controller 112D, and the light emitting brightness information S3 of the light emitting device 112C can be transmitted to the controller 112D. For example, as shown in fig. 1C, the light emitting device 113C is electrically coupled to the controller 113D, and the light emitting brightness information S3 of the light emitting device 113C can be transmitted to the controller 113D.
The controller may communicate the received information to the wireless communication module 114. For example, as shown in fig. 1A, after receiving the driving information S1 and S2 and the light emitting brightness information S3 of the light emitting device 111, the controller 111D can transmit the information to the wireless communication module 114. For example, as shown in fig. 1B, after receiving the driving information S1 and S2 and the light emitting brightness information S3 of the light emitting device 112, the controller 112D can transmit the information to the wireless communication module 114. For example, as shown in fig. 1C, after receiving the driving information S1 and S2 and the light emitting brightness information S3 of the light emitting device 113, the controller 113D may transmit the information to the wireless communication module 114.
In each light emitting device, the controller is configured to: receiving driving information detected by a corresponding measuring device; obtaining the difference between the driving information and the driving default value; judging whether the difference exceeds a driving tolerance range; and generating an abnormal signal when the difference exceeds the driving tolerance range. The driving default value may be stored in the controller in advance, or the driving default value may be stored in a memory, and the controller may access the driving default value of the memory. The driving default value is not limited in the embodiments of the present invention, and the driving tolerance range is, for example, a ratio of the driving default value, for example, a real number between 1% and 10%.
For example, as shown in fig. 1A, the controller 111D of the light emitting device 111 is configured to: receiving the driving information (S1 and/or S2) detected by the sensor 111E; obtaining the difference between the driving information (S1 and/or S2) and the driving default value; judging whether the difference exceeds a driving tolerance range; when the difference exceeds the driving tolerance range, a driving abnormality signal S4 is generated. When the difference does not exceed the driving tolerance range, the controller 111D may not issue the driving abnormality signal S4. In another embodiment, the controller 111D may transmit the driving information (S1 and/or S2) to the wireless communication module 114, whether the difference exceeds the driving tolerance range or not. As shown in fig. 1B, the controller 112D of the light emitting device 112 can perform the same or similar actions, which are not described herein. As shown in fig. 1C, the controller 113D of the light emitting device 113 can perform the same or similar actions, which are not described herein.
In each light emitting device, the controller is further configured to: receiving the luminance information of the corresponding luminous piece; obtaining a difference between the luminous brightness information and a luminous brightness default value; judging whether the difference exceeds a brightness allowable range; and generating an abnormal signal of the light-emitting brightness when the difference exceeds the allowable range of the light-emitting brightness. The default value of the light emitting brightness may be stored in the controller in advance, or the default value of the light emitting brightness may be stored in a memory, and the controller may access the driving default value of the memory. The embodiment of the invention is not limited to the default value of the light-emitting brightness, and the allowable range of the light-emitting brightness is a proportion of the default value of the light-emitting brightness, for example, a real number between 1% and 10%.
For example, as shown in fig. 1A, the controller 111D of the light emitting device 111 is further configured to: receiving the light emission luminance information S3 of the light emitting element 111C; obtaining the difference between the light-emitting brightness information S3 and a light-emitting brightness default value; judging whether the difference exceeds the allowable range of the light-emitting brightness; and generating a light-emitting brightness abnormality signal S5 when the difference exceeds the light-emitting brightness tolerance range. When the difference does not exceed the allowable range of the light-emitting brightness, the controller 111D may not emit the light-emitting brightness abnormality signal S5. The controller 111D may transmit the abnormal light emitting brightness signal S5 to the wireless communication module 114. In another embodiment, the controller 111D may transmit the light emitting luminance information S3 to the wireless communication module 114 regardless of whether the difference exceeds the light emitting luminance allowable range. As shown in fig. 1B, the controller 112D of the light emitting device 112 can perform the same or similar actions, which are not described herein. As shown in fig. 1C, the controller 113D of the light emitting device 113 can perform the same or similar actions, which are not described herein.
In addition to the above information, the controller of each lighting device may further obtain information such as lighting time, damage number and/or damage ratio of the lighting device from the measuring device, the lighting device, the driving information S1, S2 and/or the lighting brightness information S3, and transmit the information to the wireless communication module 114.
In summary, as long as the selected one of the light emitting devices is powered, the controller and the measuring device of the remaining light emitting devices can be powered. Therefore, the controller and the measuring device of each light emitting device can normally and frequently acquire the information of the light emitting element and the power module in the driving interval (powered) of the selected person of the light emitting devices.
As shown in fig. 1A to 1C, the wireless communication module 114 may use a wireless communication technology to communicate with a management platform or an external electronic device (not shown), such as a server, a computer, a smart phone, or the like. The wireless communication module 114 may transmit the received signals (e.g., the driving information S1, S2, the light-emitting luminance information S3, the driving abnormality signal S4 and/or the light-emitting luminance abnormality signal S5) of the respective light-emitting devices to the external electronic device. An operator may monitor the actual condition of the traffic signal light 110 through the server.
As shown in fig. 1A to 1C, in each light emitting device, when the light emitting device (the subject) receives the alternating current I1 (corresponding to the driving section T of fig. 1E 113 ) The power module may provide the direct current I2 to the wireless communication module 114 for the wireless communication module 114 to operate normally, for example, transmit the received signals (e.g., the driving information S1, S2, the light-emitting brightness information S3, the driving anomaly signal S4 and/or the light-emitting brightness anomaly signal S5) of each light-emitting device to the external electronic device.
As shown in fig. 1E, the traffic light controller 120 can output a driving signal D to enable the light emitting elements of the light emitting devices of the traffic signal lamp 110 to emit light in the corresponding driving interval (the driving interval of the selected person) (the non-corresponding driving interval does not emit light)). Fig. 1C shows only one driving period T, but the driving signal D may have a plurality of consecutive driving periods T or a plurality of driving periods T with different lengths. In a driving period T of the driving signal D, a driving interval T 111 Indicating the driving time of the light emitting device 111 by the traffic light controller 120, the driving interval T 112 The driving time of the traffic light controller 120 to the light emitting device 112 is shown, and the driving interval T 113 The driving time of the light emitting device 113 by the traffic light controller 120 is shown. Although not shown, there is a small power supply interval T between two adjacent driving intervals S At the power supply interval T S In this case, the light-emitting device is not powered. However, at the power supply interval T S In this case, the power stabilizing module 130 can supply power to each light emitting device to maintain its normal operation. Further examples are set forth below.
As shown in fig. 1A to 1C, the power distribution module of each light emitting device is electrically coupled to the power stabilizing module 130. For example, the power distribution module 111B of the light emitting device 111, the power distribution module 112B of the light emitting device 112, and the power distribution module 113B of the light emitting device 113 are electrically coupled to the power stabilizing module 130. The power distribution module may provide the direct current I2 to the power stabilization module 130 for storage. For example, when the traffic light controller 120 provides the alternating current I1 to the light emitting device 111 (as shown in fig. 1A), the power distribution module 111B of the light emitting device 111 may provide the direct current I2 to the power stabilization module 130 for storage. When the traffic light controller 120 provides the alternating current I1 to the light emitting device 112 (as shown in fig. 1B), the power distribution module 112B of the light emitting device 112 may provide the direct current I2 to the power stabilization module 130 for storage. When the traffic light controller 120 provides the alternating current I1 to the light emitting device 113 (as shown in fig. 1C), the power distribution module 113B of the light emitting device 113 may provide the direct current I2 to the power stabilization module 130 for storage.
As shown in fig. 1A to 1C, the power stabilizing module 130 includes a power output unit 131 and a power storage unit 132. The power output unit 131 is electrically coupled to the power storage unit 132. The power output unit 131 may provide the direct current I2 to the power storage unit 132 for storage (power storage I3). The power output unit 131 is, for example, a physical circuit formed by a semiconductor process, and the power storage unit 132 is, for example, a battery.
As shown in fig. 1D, when all the light emitting devices 111-113 do not receive the alternating current I1 (e.g. at the power supply interval T of fig. 1E) S ) The power stabilization module 130 may provide the stored power I3 (e.g., direct current) to such power distribution modules 111B-113B of all light emitting devices 111-113. Thus, even at the power supply interval T S All the light emitting devices 111-113 are not driven by the alternating current I1, and the power stabilizing module 130 still supplies power to operate normally.
As shown in fig. 1D, after receiving the electricity storage I3, the power distribution modules 111B-113B may supply power to the controller, the measuring device and the wireless communication module in a similar or identical manner to the foregoing fig. 1A-1C. For example, as shown in fig. 1A, after the power distribution module 111B receives the electricity storage I3, the power distribution module 111B may provide the electricity storage I3 to the controller 111D and the measuring device 111E, and the controller 111D and the measuring device 111E may perform the same actions as those of fig. 1A. For example, as shown in fig. 1B, after the power distribution module 112B receives the electricity storage I3, the power distribution module 112B may provide the electricity storage I3 to the controller 112D and the measuring device 112E, and the controller 112D and the measuring device 112E may perform the same actions as in fig. 1A. For example, as shown in fig. 1C, after the power distribution module 113B receives the electricity storage I3, the power distribution module 113B may provide the electricity storage I3 to the controller 113D and the measuring device 113E, and the controller 113D and the measuring device 113E may perform the same actions as in fig. 1A.
As shown in fig. 1D, when all the light emitting devices 111-113 do not receive the alternating current I1 (e.g. at the power supply interval T of fig. 1E) S ) In this case, the power stabilizing module 130 may provide the power storage I3 (e.g., direct current) to the wireless communication module 114 for the wireless communication module 114 to operate normally, for example, to transmit the received signals (e.g., the driving information S1, S2, the light-emitting brightness information S3, the driving anomaly signal S4 and/or the light-emitting brightness anomaly signal S5) of each light-emitting device to the external electronic device. Thus, even at the power supply interval T S All the light emitting devices 111-113 are not driven by the alternating current I1, and the power stabilizing module 130 supplies power to the wireless communication module 114 to enable wireless communicationThe module 114 can function normally.
In summary, the measuring device and the controller of each lighting device of the traffic signal lamp 110 can be constantly in the power-on state no matter whether the traffic signal lamp 110 receives the ac I1 drive. In addition, when the selected person of the light emitting devices of the traffic signal lamp 110 is driven by the alternating current I1, the selected person supplies power to the controller and the measuring device of the selected person and the controllers and the measuring devices of the other light emitting devices. When the traffic signal lamp 110 is not driven by the alternating current I1, the power stabilizing module 130 supplies power to the controller and the measuring device of each lighting device.
In particular, the sensor and controller require a period of time from an unpowered state to a normal operational state, which causes a detection window. Because the measuring device and the controller of each light-emitting device can be constantly in the power-driven state, the measuring device and the controller of each light-emitting device can be constantly in the normal operation state, and empty windows can be prevented from being detected. In addition, the conventional sensor and controller need to be sufficiently powered from the unpowered state to the normal operation state if the power supply time is very short (see, for example, the driving interval T of fig. 1E 112 ) The controller is disabled. However, since the measuring device and the controller according to the embodiments of the present invention can be constantly in the power-on state, there is no need to consider whether the time required for enabling is enough.
Referring to fig. 2A to 2C, fig. 2A is a schematic diagram illustrating a traffic light controller 120 of a traffic signal system 200 according to another embodiment of the invention for powering a light emitting device 211, fig. 2B is a schematic diagram illustrating the traffic light controller 120 of fig. 2A for powering a light emitting device 212, and fig. 2C is a schematic diagram illustrating the traffic light controller 120 of fig. 2A for powering a light emitting device 213. The traffic signal system 200 includes a traffic signal light 210, a traffic light controller 120, and a power stabilization module 130. The traffic signal lamp 210 includes a plurality of light emitting devices 211 to 213, a wireless communication module 114, and a power distribution module 215. The power distribution module 215 is, for example, a physical circuit formed by a semiconductor process.
Unlike the traffic signal system 100 described above, the controller and the measuring device of each lighting device of the traffic signal system 200 according to the embodiment of the invention are uniformly powered by the power stabilizing module 130, which is further illustrated below.
As shown in fig. 2A to 2C, each of the light emitting devices 211 to 213 includes a light emitting element, a power module, a controller and a measuring device, wherein the power module can convert the alternating current I1 into the first direct current I21 and provide the first direct current I21 to the light emitting element, and the measuring device is electrically coupled to the light emitting element and the power module. The power distribution module 215 is configured to convert the ac power I1 into the second dc power I22, and provide the second dc power I22 to the power stabilizing module 130. The power stabilizing module 130 is configured to store the second direct current I22 as a stored power I3, and provide the stored power I3 to the controller and the measuring device of each light emitting device. Thus, the controller and the measuring device of each light emitting device can constantly receive the power supply of the power stabilizing module 130, and can constantly and normally operate.
For example, as shown in fig. 2A, 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 may convert the alternating current I1 into a first direct current I21 and provide the first direct current I21 to the light emitting part 111C. The measuring device 111E is electrically coupled to the power module 111A and the light emitting device 111C. The power distribution module 215 is configured to convert the ac power I1 into the second dc power I22, and provide the second dc power I22 to the power stabilizing module 130. The power stabilizing module 130 is used for storing the second direct current I22 as a stored power I3, and providing the stored power I3 to the controllers 111D-113D and the measuring devices 111E-113E of the light emitting devices 211-213. Thus, the controllers 111D-113D and the measurers 111E-113E of the light emitting devices 111-113 can constantly receive the power of the power stabilizing module 130, and constantly and normally operate.
For example, as shown in fig. 2B, 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 device 112C. The power module 112A, the measuring device 112E and the light emitting device 112C can perform similar or identical actions, which will not be described herein. Thus, the controllers 111D-113D and the measurers 111E-113E of the light emitting devices 211-213 can constantly receive the power of the power stabilizing module 130, and constantly operate normally.
For example, as shown in fig. 2C, 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 device 113C. The power module 113A, the measuring device 113E and the light emitting device 113C can perform similar or identical actions, which are not described herein. Thus, the controllers 111D-113D and the measurers 111E-113E of the light emitting devices 211-213 can constantly receive the power of the power stabilizing module 130, and constantly operate normally.
In this embodiment, the power distribution module 215 may convert the ac power I1 into the second dc power I22. However, in another embodiment, the power distribution module 215 may not have ac-dc conversion function; correspondingly, the traffic signal system 200 further includes a power module (not shown) connected to the power distribution module 215 and the traffic light controller 120, and configured 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 stabilizing module 130.
In addition, the power stabilizing module 130 can provide the power storage I3 to the wireless communication module 114 in addition to the controller and the measuring device for uniformly supplying power to each lighting device of the traffic signal system 200.
Referring to fig. 3, a flow chart of a traffic signal light status detection method of the traffic signal system 100 of fig. 1A-1D is shown.
In step S110, when the selected one of the light emitting devices 111-113 receives the ac power I1, the power module of the selected one converts the ac power I1 into the dc power I2.
In step S120, the power module of the subject supplies the direct current I2 to the light emitting element and the power distribution module of the subject.
In step S130, the power distribution module of the selected subject provides the direct current I2 to the controller and the measuring device of the selected subject and the power distribution modules of the rest of the light emitting devices 111-113.
Other embodiments of the traffic signal lamp status detection method of the traffic signal system 100 according to the embodiment of the invention are described above and will not be repeated here.
Referring to fig. 4, a flow chart of a traffic signal light status detection method of the traffic signal system 200 of fig. 2A-2C is shown.
In step S210, when the selected one of the light emitting devices 211 to 213 receives the alternating current I1, the power module of the selected one converts the alternating current I1 into the first direct current I21.
In step S220, the power module of the subject supplies the first direct current I21 to the light emitting element of the subject.
In step S230, the ac power I1 of the power distribution module 215 is converted into the second dc power I22.
In step S240, the power distribution module 215 provides the second direct current I22 to the power stabilization module 130.
In step S250, the power stabilizing module 130 stores the second dc power I22 as the stored power I3.
In step S260, the power stabilizing module 130 provides the power storage I3 to the controllers 111D to 113D and the measurers 111E to 113E of the respective light emitting devices 211 to 213.
Other embodiments of the traffic signal lamp status detection method of the traffic signal system 200 according to the embodiment of the invention are described above and will not be repeated here.
In summary, embodiments of the present invention provide a traffic signal lamp, a traffic signal system, and a method for detecting a status of a traffic signal lamp using the same, where a controller and/or a measuring device of each lighting device of the traffic signal lamp can be constantly powered (powered) to operate normally, regardless of whether the enabling time is enough. In one embodiment, when the selected person of the light emitting devices receives the alternating current, the selected person supplies power to the controllers and/or the measurers of all the light emitting devices, and simultaneously charges the power stabilizing module; when all the light emitting devices do not receive the alternating current, the power supply stabilizing module supplies power (electricity storage) to the controllers and/or the measurers of all the light emitting devices. In another embodiment, when the selected person of the light emitting devices receives the alternating current, the selected person charges the power stabilizing module, and the power stabilizing module uniformly supplies power (stores power) to the controllers and/or the measurers of all the light emitting devices. In this way, all of the light emitting devices can be constantly powered so that their components (e.g., the gauges and/or controllers, etc.) can constantly function properly.
In summary, although the present invention has been described in terms of the above embodiments, it is not limited thereto. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present invention. Accordingly, the scope of the invention is defined by the appended claims.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (21)
1. A traffic signal light, comprising:
a plurality of light emitting devices, each of the light emitting devices comprising:
a light-emitting member;
a power distribution module;
the power supply module is used for converting alternating current into direct current and providing the direct current for the luminous piece and the power supply distribution module;
a measuring device electrically coupled to the power distribution module and the light emitting element; a kind of electronic device with high-pressure air-conditioning system
A controller electrically coupled to the power distribution module and the measuring device;
when a selected person of the light-emitting device receives the alternating current, the power distribution module of the selected person provides the direct current to the controller of the selected person and the power distribution module of the rest of the measuring device and the light-emitting device.
2. The traffic signal lamp of claim 1, wherein the power distribution module of each lighting device is electrically coupled to a power stabilization module; the power distribution module of the selected person is used for providing the direct current to the power stabilization module for storage.
3. The traffic signal lamp of claim 1, wherein the power distribution module of each lighting device is electrically coupled to a power stabilization module; when all the light emitting devices do not receive alternating current, the power supply stabilizing module provides power storage for the power supply distributing modules of all the light emitting devices.
4. The traffic signal lamp of claim 1, wherein the controller of each light emitting device is configured to:
receiving a driving message detected by the corresponding measuring device;
obtaining a difference between the driving information and a driving default value;
judging whether the difference exceeds a driving tolerance range; and
when the difference exceeds the allowable range, a driving abnormality signal is generated.
5. The traffic signal lamp of claim 1, wherein the controller of each light emitting device is configured to:
receiving a corresponding luminous brightness information of the luminous piece;
obtaining a difference between the luminance information and a luminance default value;
judging whether the difference exceeds a luminance tolerance range; and
when the difference exceeds the allowable range of the light-emitting brightness, a light-emitting brightness abnormal signal is generated.
6. The traffic signal lamp of claim 1, further comprising:
a wireless communication module electrically coupled to the power distribution module and a power stabilizing module of each light emitting device;
when the selected person of the light-emitting device receives the alternating current, the power distribution module of the selected person provides the direct current to the wireless communication module;
when all the light emitting devices do not receive alternating current, the power supply stabilizing module provides electricity for the wireless communication module.
7. A traffic signal light, comprising:
a plurality of light emitting devices, each of the light emitting devices comprising:
a light-emitting member;
the power supply module is used for converting alternating current into first direct current and providing the first direct current for the luminous element;
a measuring device electrically coupled to the light emitting device and the power module; a kind of electronic device with high-pressure air-conditioning system
A controller electrically coupled to the sensor;
the power distribution module is used for receiving the alternating current and converting the alternating current into a second direct current to be provided for a power stabilization module;
the power stabilizing module is used for storing the second direct current into a power store and providing the power store for the controller and the measuring device of each light-emitting device.
8. The traffic signal lamp of claim 7, further comprising:
a wireless communication module electrically coupled to the power stabilizing module;
the power stabilizing module is further used for providing the power storage to the wireless communication module.
9. The traffic signal lamp of claim 7, wherein the controller of each lighting device is configured to:
receiving a driving message detected by the corresponding measuring device;
obtaining a difference between the driving information and a driving default value;
judging whether the difference exceeds a driving tolerance range; and
when the difference exceeds the allowable range, a driving abnormality signal is generated.
10. The traffic signal lamp of claim 7, wherein the controller of each lighting device is configured to:
receiving a corresponding luminous brightness information of the luminous piece;
obtaining a difference between the luminance information and a luminance default value;
judging whether the difference exceeds a luminance tolerance range; and
when the difference exceeds the allowable range of the light-emitting brightness, a light-emitting brightness abnormal signal is generated.
11. A traffic signal system, comprising:
a traffic signal light as claimed in any one of claims 1 to 10; and
a traffic light controller for providing the alternating current to the traffic signal lamp.
12. The traffic signal lamp state detection method is characterized by comprising the following steps:
when a selected person of the light-emitting device receives alternating current, a power module of the selected person converts the alternating current into direct current;
the power module of the selected person supplies the direct current to a light emitting piece and a power distribution module of the selected person;
the power distribution module of the selected person provides the direct current to the controller of the selected person and the power distribution module of the rest of the measuring device and the light emitting device.
13. The traffic signal lamp status detection method according to claim 12, further comprising:
the power distribution module of the selected person provides the direct current to the power stabilization module for storage.
14. The traffic signal lamp status detection method according to claim 12, further comprising:
when all the light emitting devices do not receive alternating current, a power supply stabilizing module provides power storage for the power supply distributing modules of all the light emitting devices.
15. The traffic signal lamp status detection method according to claim 12, further comprising:
receiving a driving message detected by the corresponding measuring device;
obtaining a difference between the driving information and a driving default value;
judging whether the difference exceeds a driving tolerance range; and
when the difference exceeds the allowable range, a driving abnormality signal is generated.
16. The traffic signal lamp status detection method according to claim 12, further comprising:
receiving a corresponding luminous brightness information of the luminous piece;
obtaining a difference between the luminance information and a luminance default value;
judging whether the difference exceeds a luminance tolerance range; and
when the difference exceeds the allowable range of the light-emitting brightness, a light-emitting brightness abnormal signal is generated.
17. The traffic signal lamp status detection method according to claim 12, further comprising:
when the selected person of the light-emitting device receives the alternating current, the power distribution module of the selected person provides the direct current to a wireless communication module; and
when all the light emitting devices do not receive alternating current, a power supply stabilizing module provides power for the wireless communication module;
the wireless communication module is electrically coupled to the power distribution module and the power stabilizing module of each light emitting device.
18. The traffic signal lamp state detection method is characterized by comprising the following steps:
when a selected person of the light-emitting device receives alternating current, a power module of the selected person converts the alternating current into first direct current;
the power module of the selected person provides the first direct current to the light emitting piece of the selected person;
the power distribution module converts the alternating current into a second direct current;
the power distribution module provides the second direct current to a power stabilization module;
the power stabilizing module stores the second direct current into a power storage; and
the power stabilizing module provides the stored power to the controller and the measuring device of each lighting device.
19. The method of claim 18, further comprising:
the power stabilizing module provides the power to the wireless communication module.
20. The method of claim 18, further comprising:
receiving a driving message detected by the corresponding measuring device;
obtaining a difference between the driving information and a driving default value;
judging whether the difference exceeds a driving tolerance range; and
when the difference exceeds the allowable range, a driving abnormality signal is generated.
21. The method of claim 18, further comprising:
receiving a corresponding luminous brightness information of the luminous piece;
obtaining a difference between the luminance information and a luminance default value;
judging whether the difference exceeds a luminance tolerance range; and
when the difference exceeds the allowable range of the light-emitting brightness, a light-emitting brightness abnormal signal is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/111,289 US20230397321A1 (en) | 2022-06-06 | 2023-02-17 | Traffic signal lamp, traffic signal system and lamp-state detection method using the same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202263349167P | 2022-06-06 | 2022-06-06 | |
| US63/349,167 | 2022-06-06 |
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| CN117202452A true CN117202452A (en) | 2023-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211550600.6A Pending CN117202452A (en) | 2022-06-06 | 2022-12-05 | Traffic signal system, traffic signal lamp and state detection method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117202452A (en) |
| TW (1) | TW202349355A (en) |
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2022
- 2022-12-05 CN CN202211550600.6A patent/CN117202452A/en active Pending
- 2022-12-05 TW TW111146537A patent/TW202349355A/en unknown
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| TW202349355A (en) | 2023-12-16 |
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