CN112085957A - Multifunctional traffic signal lamp - Google Patents
Multifunctional traffic signal lamp Download PDFInfo
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- CN112085957A CN112085957A CN201910447469.2A CN201910447469A CN112085957A CN 112085957 A CN112085957 A CN 112085957A CN 201910447469 A CN201910447469 A CN 201910447469A CN 112085957 A CN112085957 A CN 112085957A
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- signal lamp
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
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Abstract
The invention relates to a multifunctional traffic signal lamp, which is applied to the field of road traffic communication control and comprises a signal lamp display and brightness control technology, a light illumination detection technology and a temperature detection technology. The invention can adjust the brightness of the signal lamp according to the intensity of the environment light, the signal lamp can adjust the brightness of the signal lamp according to the change of the intensity of the environment light, the brightness of the signal lamp is correspondingly increased when the environment light is brighter, and the brightness of the signal lamp is correspondingly decreased when the environment light is darker, thereby overcoming the problem that the current signal lamp with constant brightness easily causes discomfort to eyes of people. For the intersection with the traffic electronic police, the invention solves the situation that the red light is displayed as the yellow light on the snapshot image and the video recording caused by the over-lighting of the red light of the signal lamp at night, and avoids the dispute problem of the signal lamp during law enforcement. The signal lamp display of the invention adopts the direct current power supply to drive and emit light, and the situation that the signal lamp on the image is not lighted when the vehicle makes a snapshot of illegal red light running does not exist.
Description
Technical Field
The invention relates to a light illumination detection technology, a temperature detection technology and a road traffic signal lamp technology.
Background
The existing road traffic signal lamp has higher brightness because the signal lamp can be seen clearly by people in the sunshine, but the brightness of the signal lamp is unchanged, so that the requirement of the signal lamp in the sunshine in the daytime is met, but the signal lamp has higher brightness and is dazzling to people in the cloudy day and at night, and the problem of discomfort of eyes of people is easily caused.
The invention relates to a multifunctional traffic signal lamp, which can adjust the brightness of the signal lamp according to the intensity of ambient light, wherein the signal lamp can adjust the brightness of the signal lamp according to the change of the intensity of the ambient light, the brightness of the signal lamp is correspondingly increased when the ambient light is brighter, and the brightness of the signal lamp is correspondingly decreased when the ambient light is darker, so that the problem that the eye discomfort of people is easily caused by the existing signal lamp with constant brightness is solved.
For the intersection with the traffic electronic police, the invention solves the situation that the red light is displayed as the yellow light on the snapshot image and the video recording caused by the over-lighting of the red light of the signal lamp at night, and avoids the dispute problem of the signal lamp during law enforcement.
The signal lamp display of the invention adopts a direct current power supply to drive light, has stable brightness in the light emitting process, can well overcome the evidence obtaining requirement of traffic electronic police video equipment, and does not have the condition that the signal lamp on the image is not bright when the vehicle makes a snapshot of illegal red light running (because human eyes see that the signal lamp is bright when the vehicle is driven by alternating current, but the signal lamp is just captured when the signal lamp is dark when the vehicle makes a snapshot at high speed).
The intelligent traffic monitoring system can collect the working voltage and the ambient temperature of the signal lamp and provide environmental data for the intelligent traffic management platform.
Disclosure of Invention
The invention relates to a multifunctional traffic signal lamp which comprises a control unit U1, an ambient temperature detection unit U2, an ambient light detection unit U3, a voltage detection unit U4, an external power supply interface U5, a DC/DC power supply U6 (note: DC/DC means a direct current power supply-to-direct current power supply, the same below), a traffic signal lamp set U7, an external communication interface U8, a resistor R1, a resistor R2 and a resistor R3.
In the present invention, an external power interface U5 of the system is connected to a power input pin of a DC/DC power U6 and a voltage input pin of a voltage detection unit U4, an analog voltage output pin of the voltage detection unit U4 is connected to an ADC input 1 pin of a control unit U1 (note: ADC indicates analog value to digital value, the same applies below), a DC power output pin of a DC/DC power U6 is connected to a DC power input pin of a traffic signal light group U7 and a 1 pin of a resistor R1, a 2 pin of a resistor R1 is connected to a feedback voltage input pin of the DC/DC power U6, 1 pins of resistors R2 and R3, a 2 pin of a resistor R2 is connected to ground, a 2 pin of a resistor R3 is connected to a DAC output pin of a control unit U1 (note: DAC index value to analog value, the same applies below), an analog signal output pin of an ambient light detection unit U3 is connected to an ADC input 2 pin of a control unit U1, an analog signal output pin of the ambient temperature detection unit U2 is connected with an ADC input 3 pin of the control unit U1, and a communication interface of the control unit U1 is connected with an external communication interface U8.
In the invention, the voltage value output by the direct current power supply output pin of the DC/DC power supply U6 is realized by changing the voltage at two ends of the feedback resistor through the DAC output pin by the control unit U1.
In the invention, a voltage detection unit U4 collects the input voltage value of an external power interface U5 and transmits the input voltage value to an ADC input 1 pin of a control unit U1 through an analog voltage output pin; after obtaining a voltage analog signal corresponding to the ambient light intensity, the ambient light detection unit U3 transmits the voltage analog signal to the ADC input 2 pin of the control unit U1 through the analog signal output pin thereof, and the control unit U1 changes the output voltage of the DAC output pin according to the ambient light intensity, thereby changing the voltage at both ends of the feedback resistor R1; the environment temperature detection unit U2 obtains the environment temperature analog signal, and transmits the environment temperature analog signal to the ADC input 3 pin of the control unit U1 through the analog signal output pin.
The brightness of the traffic signal lamp group U7 is related to the ambient light illumination, the brightness of the signal lamp is correspondingly increased when the ambient light is brighter, and the brightness of the signal lamp is correspondingly decreased when the ambient light is darker.
The invention can transmit the voltage value of the power supply, the current illumination value, the temperature value and the current signal lamp voltage value to an external system through the external communication interface U8.
Drawings
Fig. 1 is a circuit schematic of the present invention.
Examples
In fig. 1, the invention is composed of a control unit U1, an ambient temperature detection unit U2, an ambient light detection unit U3, a voltage detection unit U4, an external power interface U5, a DC/DC power supply U6, a traffic signal lamp set U7, an external communication interface U8, resistors R1, R2 and R3.
In fig. 1, an external power interface U5 of the system is connected to a power input pin of a DC/DC power supply U6 and a voltage input pin of a voltage detection unit U4, an analog voltage output pin of the voltage detection unit U4 is connected to an ADC input 1 pin of a control unit U1, a DC power output pin of the DC/DC power supply U6 is connected to a DC power input pin of a traffic signal light group U7 and a 1 pin of a resistor R1, a 2 pin of the resistor R1 is connected to a feedback voltage input pin of a DC/DC power supply U6 and 1 pins of resistors R2 and R3, a 2 pin of the resistor R2 is connected to ground, a 2 pin of a resistor R3 is connected to a DAC output pin of the control unit U1, an analog signal output pin of an ambient light detection unit U3 is connected to an ADC input 2 pin of the control unit U1, an analog signal output pin of the ambient temperature detection unit U2 is connected to an ADC input 3 pin of the control unit U1, the communication interface of the control unit U1 is connected with an external communication interface U8.
In fig. 1, the voltage value output from the DC power output pin of the DC/DC power supply U6 is implemented by the control unit U1 changing the voltage across the feedback resistor via the DAC output pin.
In fig. 1, the voltage detection unit U4 collects the input voltage value of the external power interface U5 and transmits the collected value to the ADC input 1 pin of the control unit U1 via the analog voltage output pin; after obtaining a voltage analog signal corresponding to the ambient light intensity, the ambient light detection unit U3 transmits the voltage analog signal to the ADC input 2 pin of the control unit U1 through the analog signal output pin thereof, and the control unit U1 changes the output voltage of the DAC output pin according to the ambient light intensity, thereby changing the voltage at both ends of the feedback resistor R1; the environment temperature detection unit U2 obtains the environment temperature analog signal, and transmits the environment temperature analog signal to the ADC input 3 pin of the control unit U1 through the analog signal output pin.
In fig. 1, the brightness of the traffic signal light group U7 is related to the illuminance of ambient light, and the brightness of the traffic signal light is correspondingly increased when the ambient light is brighter, and is correspondingly decreased when the ambient light is darker.
In fig. 1, the system can transmit the power supply voltage value, the current illumination value, the temperature value and the current signal lamp voltage value to the external system through the external communication interface U8.
Claims (4)
1. The invention relates to a multifunctional traffic signal lamp which comprises a control unit U1, an ambient temperature detection unit U2, an ambient light detection unit U3, a voltage detection unit U4, an external power supply interface U5, a DC/DC power supply U6 (note: DC/DC means a direct current power supply-to-direct current power supply, the same below), a traffic signal lamp set U7, an external communication interface U8, a resistor R1, a resistor R2 and a resistor R3.
2. The signal lamp according to claim 1, wherein an external power interface U5 of the system is connected with a power input pin of a DC/DC power supply U6 and a voltage input pin of a voltage detection unit U4, an analog voltage output pin of the voltage detection unit U4 is connected with an ADC (note: ADC indicates analog value to convert into digital value, the same is applied below) input 1 pin of a control unit U1, a DC power output pin of the DC/DC power supply U6 is connected with a DC power input pin of a traffic signal lamp group U7 and a 1 pin of a resistor R1, a 2 pin of the resistor R1 is connected with a feedback voltage input pin of the DC/DC power supply U6 and 1 pins of resistors R2 and R3, a 2 pin of a resistor R2 is connected to ground, a 2 pin of the resistor R3 is connected with a DAC (note: DAC indicates digital value to convert into analog value, the same is applied below) output pin of the control unit U1, an analog signal output pin of an ambient light detection unit U3 is connected with an ADC input 2 pin of an ADC control unit, an analog signal output pin of the ambient temperature detection unit U2 is connected with an ADC input 3 pin of the control unit U1, and a communication interface of the control unit U1 is connected with an external communication interface U8.
3. The signal lamp of claim 1, wherein the ambient light detecting unit U3 obtains an analog voltage signal corresponding to the ambient light intensity, and then transmits the analog voltage signal to the ADC input 2 pin of the control unit U1 via the analog signal output pin for analog-to-digital conversion, and the control unit U1 changes the output voltage of the DAC output pin according to the analog-to-digital conversion value, so as to change the output voltage value of the DC power output pin of the DC/DC power supply U6.
4. The signal lamp of claim 1, the voltage detection unit U4 collects the input voltage value of the external power interface U5 and transmits the collected voltage value to the ADC input 1 pin of the control unit U1 through the analog voltage output pin for analog-to-digital conversion, and the environment temperature detection unit U2 obtains the environment temperature analog signal and transmits the obtained signal to the ADC input 3 pin of the control unit U1 through the analog signal output pin for analog-to-digital conversion; the control unit U1 sends out the values obtained by the analog-to-digital conversion through the external system interface U8 for use by the external system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910447469.2A CN112085957A (en) | 2019-05-27 | 2019-05-27 | Multifunctional traffic signal lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910447469.2A CN112085957A (en) | 2019-05-27 | 2019-05-27 | Multifunctional traffic signal lamp |
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| CN112085957A true CN112085957A (en) | 2020-12-15 |
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Citations (6)
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|---|---|---|---|---|
| CN101896951A (en) * | 2007-12-03 | 2010-11-24 | 奥尔德里奇交通系统私人有限公司 | An LED driver method for traffic lanterns |
| CN102054360A (en) * | 2009-11-05 | 2011-05-11 | 胡雪飞 | Intelligent energy-saving traffic signal lamp device and control method thereof |
| KR20160079952A (en) * | 2014-12-26 | 2016-07-07 | 경북대학교 산학협력단 | System for Driving Control of LED signal lamp |
| CN206115707U (en) * | 2016-10-20 | 2017-04-19 | 南京交通职业技术学院 | Solar energy LED traffic light of adjustable luminance |
| CN207182676U (en) * | 2017-08-30 | 2018-04-03 | 北京利君瑞通智能设备有限公司 | A kind of traffic lights of automatic brightness adjustment |
| CN108172001A (en) * | 2018-02-18 | 2018-06-15 | 周云侠 | Become LED traffic signal lamp according to ambient light |
-
2019
- 2019-05-27 CN CN201910447469.2A patent/CN112085957A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896951A (en) * | 2007-12-03 | 2010-11-24 | 奥尔德里奇交通系统私人有限公司 | An LED driver method for traffic lanterns |
| CN102054360A (en) * | 2009-11-05 | 2011-05-11 | 胡雪飞 | Intelligent energy-saving traffic signal lamp device and control method thereof |
| KR20160079952A (en) * | 2014-12-26 | 2016-07-07 | 경북대학교 산학협력단 | System for Driving Control of LED signal lamp |
| CN206115707U (en) * | 2016-10-20 | 2017-04-19 | 南京交通职业技术学院 | Solar energy LED traffic light of adjustable luminance |
| CN207182676U (en) * | 2017-08-30 | 2018-04-03 | 北京利君瑞通智能设备有限公司 | A kind of traffic lights of automatic brightness adjustment |
| CN108172001A (en) * | 2018-02-18 | 2018-06-15 | 周云侠 | Become LED traffic signal lamp according to ambient light |
Non-Patent Citations (1)
| Title |
|---|
| 高利芬等: "自适应信号灯亮度控制系统研究", 《交通标准化》 * |
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Application publication date: 20201215 |