TWM595300U - Traffic signal with error detection and backup transfer system - Google Patents

Abstract

This creation discloses a traffic signal with error detection and backup transfer system, which includes: a signal unit with at least one LED signal light; at least one power supply module, and at least one power supply module connected to the station The LED signal lamp is used to supply power to the LED signal lamp; the first signal lamp failure detection device is connected to at least one of the power supply modules to detect whether at least one of the power supply modules occurs Failure; wherein, at least one of the power supply modules has a first power supply, a second power supply, and a switching device, the initial state of the power supply module is supplied by the first power supply to at least one LED signal lamp power, and when the signal lamp failure detection device detects a failure of the first power supply, the LED signal supplied by the second power supply is switched through the switching device Lamp power.

Description

Traffic signal with error detection and backup transfer system

This creation relates to a traffic sign with a fault detection and backup and transfer system, and in particular to a traffic sign with a fault detection and backup and transfer system installed on a road to indicate the traffic conditions of vehicles or pedestrians.

Generally, traffic signs are set up at urban roads or traffic gates to control the traffic status of roads or traffic gates, and remind vehicles or pedestrians to follow the directions of traffic signs.

Because the traffic signs must continue to operate for 24 hours, and the traffic signs are installed outdoors to withstand the sun, wind, and rain, they often fail. When the traffic signal fails, it not only makes the traffic at the intersection where the traffic signal is located chaotic, but also because in the current road traffic signal system, the traffic signals located at different intersections on the road are interlocked with each other to improve the road traffic. Smoothness, so the failure of a single sign may cause the chaos of the traffic sign system of the entire road.

According to past experience, the most common cause of traffic signal failure is damage to the power supply module. However, the existing traffic signal is usually only powered by a single power supply module, so when the power supply module fails, the traffic signal will immediately The operation is stopped. Therefore, when the traffic signal fails, the maintenance personnel of the control center must carry out emergency repairs within the shortest time, otherwise it will cause road traffic chaos.

In addition, most of the existing traffic signs do not have fault detection or fault reporting functions. It is necessary to rely on passerby reporting or road monitoring systems to find faults in light signals before they can learn about the faults in the traffic signs, which often delays the timing of maintenance. , And caused traffic chaos.

Due to the above reasons, the existing traffic signals have obvious shortcomings. Therefore, how to overcome the above-mentioned defects through the improvement of structural design has become one of the important issues that this business wants to solve.

The technical problem to be solved in this creation is to solve the shortcomings of the current traffic signal that when the power supply module fails, it will immediately stop operating and need to be repaired immediately. Another problem to be solved by this creation is to solve the shortcomings of the existing traffic signs that do not have fault detection and fault reporting, and cannot report the faults of the traffic signs in real time, nor can they notify maintenance arrangements.

In order to solve the above technical problems, this creative embodiment provides a traffic signal with a debugging and backup transfer system, which includes: a signal unit with at least one LED signal light; at least one power supply module, at least A power supply module is connected to the LED signal lamp to supply power to the LED signal lamp; a fault detection module is connected to at least one power supply module to detect at least one Whether the power supply module fails; wherein at least one of the power supply modules has a first power supply, a second power supply, and a switching device, and the initial state of the power supply module is determined by the first The power supply supplies at least one power of the LED signal lamp, and when the signal lamp failure detection device detects a failure of the first power supply, the second power supply is switched by the switching device The supplier supplies power to the LED signal lamp.

A preferred embodiment of the present invention, wherein the fault detection module further includes at least one voltage/current detection device, at least one of the voltage/current detection device is electrically connected to at least one of the power supply module, for Detecting the current consumed by at least one of the power supply modules to determine whether the power supply module is malfunctioning.

A preferred embodiment of the present invention, wherein at least one of the voltage/current detection devices has a voltage detection module and a current detection module; wherein the voltage detection module is used to detect a connection to the A signal controller of the signal unit, and detects the power supply voltage delivered by the signal controller to at least one of the LED signal lights; wherein the current detection module is used to detect at least one of the power supply The current consumed by the module, and determine whether the power supply module is faulty by comparing the current consumption with the initial current consumption of the power supply module, when comparing the current consumption with respect to the initial current consumption The decreased value reaches a predetermined percentage, based on which it is determined that at least one of the power supply modules is faulty.

A preferred embodiment of the present invention, wherein the signal unit further has a signal lamp fault detection device, the signal lamp fault detection device is electrically connected to at least one of the voltage/current detection devices, and when at least When the voltage/current detection device detects that the current consumed by at least one of the power supply modules is abnormal, it determines that at least one of the power supply modules is faulty and generates a fault message.

A preferred embodiment of the present invention, wherein the signal lamp failure detection device is also connected to a communication unit, and the signal lamp failure detection device is connected to a control center through the communication unit, and detects at least one When the power supply module fails, a failure message is generated, and the failure message is transmitted to the control center.

The beneficial effect of this creation is that when the signal unit fails, the power of the LED signal lamp can be supplied by transferring the backup power supply to maintain the normal operation of the signal unit, and at the same time notify the control center to arrange personnel for repair.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings of this creation. However, the drawings provided are for reference and explanation only, and are not intended to limit this creation.

The following is a specific specific example to illustrate the implementation of the "traffic sign with error detection and backup transfer system" disclosed by this creation. Those skilled in the art can understand the advantages and advantages of this creation by the content disclosed in this specification. effect. This creation can be implemented or applied through other different specific embodiments. The details in this specification can also be based on different views and applications, and various modifications and changes can be made without departing from the concept of this creation. In addition, the drawings in this creation are only a schematic illustration, not based on actual size, and are declared in advance. The following embodiments will further describe the relevant technical content of the creation, but the disclosed content is not intended to limit the protection scope of the creation.

It should be understood that although terms such as “first”, “second”, and “third” may be used herein to describe various elements or signals, these elements or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" as used herein may include any combination of any one or more of the associated listed items, depending on the actual situation.

Referring to Figures 1 to 3, this creation provides a traffic signal with a fault detection and backup transfer system, which is an LED signal light that is installed on the road or pedestrian crossing to display the status of different peers to indicate the vehicle Or pedestrians can pass according to the instructions of LED signs.

As shown in FIG. 1 to FIG. 4, it is a traffic signal system 1 adopting the authoring technology, which mainly includes: a signal unit 10, a signal controller 20, and a fault detection module 30. The signal units 10 are respectively installed at different traffic gates of the road, and each signal unit 10 has a signal pole 11 and a plurality of LED signal lights 12 for displaying different light signals (for example: red Lights, green lights, flashing yellow lights, turn right and turn left lights, etc.). And each signal unit 10 is connected to the signal controller 20, and the signal controller 20 is connected to a control center 40, and the plurality of LED signal lights 12 of each signal unit 10 are controlled by the signal controller 20 Display state.

As shown in FIG. 2, the signal unit 10 of the present invention has multiple sets of power supply modules 14 for providing the power required by the LED signal lamp 12. The fault detection module 30 connects the signal unit 10 and the signal The controller 20 is used to detect the failure of the signal unit 10 or the signal controller 20.

The fault detection module 30 has a plurality of sets of voltage/current detection devices 13, each voltage/current detection device 13 is connected between the signal controller 20 and the LED signal lamp 12, and a signal lamp fault detection The device 15 is connected to a plurality of voltage/current detection devices 13 for receiving detection signals of each voltage/current detection device 13 to determine whether the signal unit 10 and the signal controller 20 are malfunctioning. The signal lamp fault detection device 15 is also connected to a communication unit 16, when the signal controller 20 or the LED signal lamp 12 of the signal unit 10 fails, the communication unit 16 can communicate with the control center 40 through the gateway, or The control center 40 is connected through the sign controller 20, and the fault signal is transmitted to the control center 40.

The power supply module 14 has a switching device 141, a first power supply 142, and a second power supply module 143. The switching device 141 is connected to a power source, and the switching device 141 can selectively supply power to the LED signal lamp 12 from the first power supply 142 or the second power supply mold 143. In the initial state, the power supply module 14 of the present invention is powered by the first power supply 142 to supply power to the LED signal lamp 12, and when the voltage/current detection device 13 detects that the first power supply 142 has failed The switch device 141 can be used to switch the power supplied by the second power supply module 143 to the LED signal lamp 12 to maintain the normal operation of the signal unit 10.

The voltage/current detection device 13 has a voltage detection module 131 and a current detection module 142 respectively, wherein the voltage detection module 131 is used to detect the output of the signal controller 20 to each LED The power supply voltage of the signal lamp 12 is used to detect whether the signal controller 20 is operating normally. The current detection module 132 is used to detect the current consumed by the power supply module 14 and determine whether the power supply module 14 is faulty by comparing the current consumed by the power supply module 14 and the initial value of the current consumption, for example In other words, if the allowable current drop is 30%, if the current detection module 132 detects that the current consumption of the first power supply 142 corresponds to a value of 50 mA (milliampere), and its corresponding current consumption The initial value is 100 mA (milliampere), so when it is compared that the current consumed by the first power supply 142 decreases by 50% compared with the initial current consumption, the first power supply 142 can be judged to be faulty accordingly.

In more detail, the voltage detection module 131 of the voltage/current detection device 13 may be a voltage detector, a voltage comparator, a voltage detection circuit or a corresponding circuit, or an electric meter to detect the voltage. The current detection module 132 may be a current-transformer, a current-shunt, a Hall effect current sensor, a current detector, a current detection circuit, or a corresponding circuit.

The signal lamp fault detection device 15 is connected to a plurality of detection power supply modules 14 and a voltage/current detection device 13, when the voltage/current detection device 13 detects that the power supply voltage of the signal controller 20 is abnormal, or When the current consumption of the power supply module 14 is abnormal, the signal lamp failure detection device 15 can determine that the signal unit 10 is malfunctioning. And when it is detected that the current consumption of the power supply module 14 is abnormal, the power supply module 14 can switch to the second power supply 143 to supply power to the LED signal lamp 12 through the switching device 141. And when the signal unit 10 fails, the signal lamp failure detection device 15 can generate a failure message, and send the failure message to the control center 40 via the gateway or the signal controller 20 through the communication unit 16.

As shown in FIGS. 2 and 3, after receiving the fault message of the sign unit 10, the control center 40 can display the fault message of the sign unit 10 through a display unit 41, and the control center 40 accordingly sends the sign unit 10 The status of is changed to the status to be repaired, and a dispatch message is further generated to designate the maintenance personnel to arrange the repair operation.

In more detail, the fault message output by the signal lamp fault detection device 15 includes the address information of the signal unit 10, such as the MAC address. Therefore, the control center 40 can identify which signal unit 10 is faulty according to the address information in the fault message, and further query the installation location of the signal unit 10 according to the address information of the signal unit 10. As shown in FIG. 3, the control center 40 can be provided with a display unit 41, and a map screen 42 can be displayed on the display unit 41. The map screen 42 displays the geographic location set by each of the log units 10, and is used as a log unit 10 When a failure occurs, a signal failure image 43 can be used to mark the location of the failed signal unit 10 to facilitate the operator of the control center 40 to quickly know the location of the failed signal unit 10 And assign personnel to the site for maintenance.

In summary, the traffic signal system 1 of this creation can quickly switch to the backup power supply when any main power supply module of any signal unit 10 is abnormal, and send a fault message to notify the control center 40 to arrange service. This creation because the redundant power supply maintains the normal operation of the signal unit 10, so on the one hand, it can avoid the situation that the signal unit 10 cannot be operated due to the failure of the power supply module 14, on the other hand, because the signal unit 10 It can continue to operate through the backup system, so that maintenance personnel can obtain buffer time, and there is no need to arrange emergency repair operations immediately when a fault occurs, making the maintenance work more flexible.

The content disclosed above is only a preferred and feasible embodiment of this creation, and does not limit the scope of the patent application for this creation, so any equivalent technical changes made by using this creation specification and graphic content are included in this creation application Within the scope of the patent.

1: traffic signal system 10: Signal unit 11: Signal pole 12: LED signal light 13: Voltage/current detection device 131: Voltage detection module 132: Current detection module 14: Power supply module 141: Switching device 142: The first power supply 143: Electric second power supply 15: Signal lamp fault detection device 16: Communication unit 20: Signal Controller 30: Fault detection module 40: Control Center 41: display unit 42: Map screen 43: Fault image 50: Internet

FIG. 1 is a schematic diagram of a specific embodiment of creation.

Figure 2 is a block diagram of the authoring system.

Fig. 3 is a schematic diagram of the operation method of failure reporting for this creation.

10: Signal unit

12: LED signal light

13: Voltage/current detection device

131: Voltage detection module

132: Current detection module

14: Power supply module

141: Switching device

142: The first power supply

143: Electric second power supply

15: Signal lamp fault detection device

16: Communication unit

20: Signal Controller

30: Fault detection module

Claims (7)

A traffic signal with error detection and backup transfer system, including: a signal unit with at least one LED signal light; at least one power supply module, at least one of the power supply modules connected to at least one LED signal lamp for supplying power to the LED signal lamp; a fault detection module connected to at least one of the power supply modules for detecting whether at least one of the power supply modules is faulty; wherein, At least one of the power supply modules has a first power supply, a second power supply, and a switching device. The initial state of the power supply module is that the first power supply supplies at least one of the LED signal lights Power, and when the failure detection module detects a failure of the first power supply, the power supplied by the second power supply to the LED signal lamp is switched through the switching device. The traffic signal with error detection and backup transfer system as described in item 1 of the patent scope, wherein the fault detection module further includes at least one voltage/current detection device, at least one of the voltage/current detection The measuring device is electrically connected to at least one of the power supply modules to detect the current consumed by at least one of the power supply modules, so as to determine whether the power supply module is malfunctioning. The traffic signal with error detection and backup transfer system as described in item 2 of the patent scope, wherein at least one of the voltage/current detection devices has a voltage detection module and a current detection module; The voltage detection module is used to detect a sign controller connected to the sign unit and detect the power supply voltage of the sign controller to at least one LED sign lamp; The current detection module is used to detect at least one current consumed by the power supply module, and determine whether the power supply module is faulty by comparing the current consumed by the power supply module with the initial current consumption, When comparing the value of the current consumption of the power supply module with respect to the initial current consumption by a predetermined percentage, at least one of the power Power supply module failure. The traffic signal with error detection and backup transfer system as described in item 3 of the patent application scope, wherein the fault detection module also has a signal light fault detection device, the signal light fault detection The device is electrically connected to at least one of the voltage/current detection devices, and when at least one of the voltage/current detection devices detects that the current consumption of at least one of the power supply modules is abnormal, it determines at least one of the power supply The module is faulty and generates a fault message. The traffic signal with error detection and backup transfer system as described in item 4 of the patent application scope, wherein the signal lamp failure detection device is also connected to a communication unit, and the signal lamp failure detection device passes through The communication unit is connected to a control center, and when a fault of at least one of the power supply modules is detected, a fault message is generated and the fault message is transmitted to the control center. The traffic signal with error detection and backup transfer system as described in item 5 of the patent application scope, wherein the fault message includes the address information of the faulty signal unit, and the control center is based on the address The information identifies the malfunctioning sign unit, and inquires of the installation position of the malfunctioning sign unit. The traffic signal with error detection and backup transfer system as described in item 6 of the patent scope, wherein the control center displays a map screen through a display device, and the map screen corresponds to the location where the fault occurred The location of the log unit displays a fault image to indicate the location of the faulty unit.

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