CN115604885A - A method and system for real-time monitoring of signal light brightness - Google Patents

Abstract

The invention belongs to the technical field of signal lamp monitoring, and specifically relates to a method and system for real-time monitoring of signal lamp brightness, including a signal lamp board, a number of lamp beads are evenly distributed on the signal lamp board, and a plurality of lamp beads perpendicular to the signal lamp board are arranged on the signal lamp board. a pole, the top of the pole is provided with a hood, and the bottom of the hood is provided with a light detector; the electric signal of the light detector is connected to the signal acquisition and processing module; the signal acquisition and processing module collects the data of the light detector in real time, And judge whether it is within the preset range, if it exceeds the preset range, an early warning signal will be sent to the computer center. Compared with the prior art, the present invention has the following advantages: the overall device is simple, it is convenient to transform existing traffic lights, the cost of transformation is low, it is suitable for popularization, and it can accurately judge the insufficient luminous intensity of the lamp bead, and find and deal with it in time , to avoid traffic accidents caused by insufficient luminous intensity of traffic lights.

Description

A method and system for real-time monitoring of signal light brightness

technical field

The invention belongs to the technical field of signal lamp monitoring, and in particular relates to a method and system for real-time monitoring of signal lamp brightness.

Background technique

According to the national standard GB 14887-2011 "Road Traffic Signal Lights", there are clear regulations on the various light sources and luminous intensity of traffic signal lights, that is, Candela. Traffic lights are an important part of traffic safety, so the monitoring of signal lights has this mandatory inspection standard.

The current signal light only monitors the luminous intensity when it leaves the factory, and only monitors the voltage and current of the signal light in the actual use process. However, the current light-emitting diode technology has light decay during use, and the luminous intensity will change with time. The use of time growth is getting weaker and weaker. Only monitoring the voltage and current can only reflect the quality of the signal lamp, and it is impossible to obtain the luminous intensity information of the signal lamp. Because the luminous intensity of the signal light is not enough, the people participating in the traffic cannot clearly observe the indication of the signal light, which may lead to serious traffic accidents.

Real-time monitoring of the luminous intensity of signal lights can effectively determine the abnormality of signal lights, which is of great help to traffic safety.

Contents of the invention

The object of the present invention is to provide a real-time monitoring method and system for the brightness of signal lamps in order to solve the problem that the existing signal lamps cannot be monitored by a circuit for the normal working state of signal lamps after long-term use and light decay.

The present invention is achieved through the following technical solutions: a real-time monitoring system for the brightness of signal lamps, where signal lamps mainly refer to traffic signal lamps, including signal lamp lamp boards, and a number of lamp beads are evenly distributed on the signal lamp lamp boards, the lamp beads are LED lamps, and the lamp beads The outer diameter of the signal lamp is 5mm, and the height higher than the signal lamp board is about 8.7mm. The signal lamp board is provided with a plurality of poles perpendicular to the signal lamp board, and the top of the pole is provided with a hood. An illumination detector is provided; the electrical signal of the illumination detector is connected to the signal acquisition and processing module;

The signal acquisition and processing module collects the data of the light detector in real time, and judges whether it is within the preset range, and sends an early warning signal to the computer center if it exceeds the preset range.

In order to monitor the brightness of the lamp beads in real time, the pole is arranged between a plurality of adjacent lamp beads, usually at the center between three adjacent lamp beads; the lamp beads are located at the same level, and the light The distance between the bottom of the detector and the plane where the top of the lamp bead is located is 5-10mm; in order to avoid the interference of external light, the light hood completely covers the light detector; the light detector is used to monitor the intensity of light, specifically to monitor the average LED light intensity, The main body is a bare photodiode. The specific model can be selected from one of FDS1010, FDS02, FD05D, and FDSP625. The unit of measurement for the output value is Lux. In specific use, it can be used in conjunction with the AMP140 amplifier; The visible light from the filter is irradiated to the photosensitive diode, and the photosensitive diode is converted into an electrical signal according to the visible light;

The specific signal acquisition and processing module is installed behind the light board of the signal light, and can be connected to the light detector by setting wires in the pole.

Specifically, the signal acquisition and processing module sends electrical signals to the computer center through the communication network, and the electrical signals include GPRS, GSM, CDMA and other networks.

Specifically, it also includes a control module, the light detector is electrically connected to the control module, and the control module monitors the working state of the lamp bead and controls the working state of the light detector at the same time.

A monitoring method for a signal lamp brightness real-time monitoring system, comprising the following content:

(1) The control module monitors the working status of the lamp bead. When the lamp bead is in the normal working state, the light detector is controlled to start working. If the lamp bead is in the abnormal working state, an early warning signal is sent to the computer center;

The lamp bead is connected to the lamp bead controller, the signal output terminal of the lamp bead controller is connected to the electric signal of the control module, and the control module judges that the control signal of the lamp bead controller is not within the normal range, then the lamp bead is in an abnormal working state;

(2) The signal acquisition and processing module receives the real-time data of the light detector, judges whether it is within the preset range after processing, and sends an early warning signal to the computer center if it exceeds the preset range.

Install a monitor for monitoring the real-time illuminance of the lamp bead on the existing signal light board, and monitor it when the lamp bead is working normally. If the lamp bead has light decay and the judgment exceeds the preset range, an early warning signal will be sent to the computer center, which is convenient. The staff finds and handles it in time; at the same time, the control module monitors the output power of the lamp bead controller. When the output power is not within the normal range, it may be a line fault, and it will directly give an early warning to the computer center to avoid damage caused by the lamp bead line failure. The abnormality of the light detector monitoring data interferes with the judgment result.

Compared with the prior art, the present invention has the following advantages: the overall device is simple, it is convenient to carry out transformation on the existing traffic signal lights, the transformation cost is low, and it is suitable for popularization; when the light beads are working normally, the light detector is used to monitor the light of the corresponding light beads The real-time light intensity can accurately judge the insufficient luminous intensity of the lamp beads, detect and deal with it in time, and avoid traffic accidents caused by insufficient luminous intensity of traffic lights.

Description of drawings

Figure 1 is a top view of the signal light panel.

Fig. 2 is a side view of the signal light panel.

Fig. 3 is a flow chart of a method for real-time monitoring of signal light brightness.

Among them, 1-signal light board, 2-lamp bead, 3-shroud, 4-light detector.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Example 1

As shown in Figure 1-2, a signal light brightness real-time monitoring system, where the signal light mainly refers to the traffic signal light, including the signal light board 1, a number of lamp beads 2 are evenly distributed on the signal light board 1, and the lamp beads 2 are LED lights , the outer diameter of the lamp bead 2 is 5 mm, and the height of the top of the lamp bead 2 higher than the upper surface of the signal lamp panel 1 is 8.7 mm. The signal lamp panel 1 is provided with a plurality of poles perpendicular to the signal lamp panel 1. The top of the rod is provided with a light shield 3, and the bottom of the light shield 3 is provided with a light detector 4; the electric signal of the light detector 4 is connected to a signal acquisition and processing module, and the signal acquisition and processing module is a DSP processor module, and the main body is a chip ADSP-TS201S;

In the present invention, the pole is arranged at the central position between three adjacent lamp beads 2, and the distance between the bottom of the light detection 4 and the plane where the top of the lamp bead 2 is located is 6mm; in order to avoid the interference of external light, the The hood 3 completely covers the photodetector 4; the photodetector 4 is selected as FDS1010, which is used in conjunction with the AMP140 amplifier; the signal acquisition and processing module is installed behind the signal light panel 1, and can be connected to the photodetector by setting wires in the pole; The signal collection and processing module sends electrical signals to the computer center through the GPRS communication network.

As shown in Figure 3, a monitoring method of a signal light brightness real-time monitoring system includes the following contents:

(1) The control module monitors the working status of the lamp bead. When the lamp bead is in the normal working state, the light detector is controlled to start working. If the lamp bead is in the abnormal working state, an early warning signal is sent to the computer center;

The lamp bead is connected to the lamp bead controller SL4115, the signal output terminal of the lamp bead controller is connected to the electric signal of the control module, and the control module judges that the control signal of the lamp bead controller is not within the normal range, and the lamp bead is in an abnormal working state; It is also possible to use a current and voltage detection module for detection, which is a conventional technology in the art;

(2) The signal acquisition and processing module receives the real-time data of the light detector, judges whether it is within the preset range after processing, and sends an early warning signal to the computer center if it exceeds the preset range.

Install a monitor for monitoring the real-time illuminance of the lamp bead on the existing signal light board, and monitor it when the lamp bead is working normally. If the lamp bead has light decay and the judgment exceeds the preset range, an early warning signal will be sent to the computer center, which is convenient. The staff finds and handles it in time; at the same time, the control module monitors the output power of the lamp bead controller. When the output power is not within the normal range, it may be a line fault, and it will directly give an early warning to the computer center to avoid damage caused by the lamp bead line failure. The abnormality of the light detector monitoring data interferes with the judgment result.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic principles of the present invention. The present invention can be implemented in other specific forms without any specific features. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only includes an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (9)

1. A signal light brightness real-time monitoring system, comprising a signal light board, a number of lamp beads evenly distributed on the signal light board, characterized in that, the signal light board is provided with a plurality of poles perpendicular to the signal light board, the poles The top is provided with a light shield, and the bottom of the light shield is provided with a light detector; the electric signal of the light detector is connected to the signal acquisition and processing module; The signal acquisition and processing module collects the data of the light detector in real time, and judges whether it is within the preset range, and sends an early warning signal to the computer center if it exceeds the preset range. 2. A real-time monitoring system for signal light brightness according to claim 1, characterized in that the support rod is arranged between a plurality of adjacent lamp beads. 3. A real-time monitoring system for the brightness of signal lamps according to claim 1, wherein the lamp beads are located at the same level, wherein the distance between the bottom of the light detector and the plane where the top of the lamp beads is located is 5-10 mm. 4. A real-time monitoring system for signal light brightness according to claim 1, characterized in that the light shield completely covers the light detector. 5. A real-time monitoring system for signal lamp brightness according to claim 1, wherein the light detector is used to monitor the intensity of light. 6. A real-time monitoring system for signal light brightness as claimed in claim 1, wherein the signal acquisition and processing module sends electrical signals to the computer center through a communication network. 7. A real-time monitoring system for signal lamp brightness according to any one of claims 1-6, further comprising a control module, the light detector is connected to the control module with electrical signals, and the control module monitors the lamp bead working state, and control the working state of the light detector at the same time. 8. A monitoring method of the signal lamp brightness real-time monitoring system as claimed in claim 7, characterized in that, comprising the following content: (1) The control module monitors the working status of the lamp bead. When the lamp bead is in the normal working state, the light detector is controlled to start working. If the lamp bead is in the abnormal working state, an early warning signal is sent to the computer center; (2) The signal acquisition and processing module receives the real-time data of the light detector, judges whether it is within the preset range after processing, and sends an early warning signal to the computer center if it exceeds the preset range. 9. A monitoring method for a signal lamp brightness real-time monitoring system as claimed in claim 8, wherein the lamp bead is connected to a lamp bead controller, and the signal output terminal of the lamp bead controller is connected to the control module with an electrical signal, and the control module Judging that the control signal of the lamp bead controller is not within the normal range, the lamp bead is in an abnormal working state.

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