CN100373419C - Power supply method for traffic light inverted timing device - Google Patents
Power supply method for traffic light inverted timing device Download PDFInfo
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- CN100373419C CN100373419C CNB2005100449172A CN200510044917A CN100373419C CN 100373419 C CN100373419 C CN 100373419C CN B2005100449172 A CNB2005100449172 A CN B2005100449172A CN 200510044917 A CN200510044917 A CN 200510044917A CN 100373419 C CN100373419 C CN 100373419C
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Abstract
The present invention discloses a power supply method of a traffic light inverted timer, which is characterized in that the present invention comprises the following steps: power is supplied firstly; a first power supply control circuit controls a green light solid-state switch to be switched on, power required by the inverted timer is generated, and a microprocessor of the inverted timer starts working when a green light is lighted by a signal machine; power is obtained in the circulation mode; the green light solid-state switch is switched off, the microprocessor emits signals to switch on a yellow light solid-state switch, and a transformer T obtains power when the green light is switched off and a yellow light is lighted by the signal machine; signals are emitted to switch on a red light solid-state switch, and the transformer T obtains power when a red light is lighted by the signal machine, and meanwhile, the yellow light solid-state switch is switched off. The red light is switched off, the green light is lighted, and the first power supply control circuit controls the green light solid-state switch to be switched on, and meanwhile, the red light solid-state switch is switched off, and the processes are circulated. The present invention has the advantages of resource saving, light weight of the equipment, small size, and convenient installation and construction, and furthermore, the manufacture cost of the equipment is reduced, the electromagnetic noise is reduced, the maintenance quantity of the equipment is reduced, and the service life of the equipment is increased.
Description
(1) technical field: the present invention relates to a kind of method of supplying power to, relate in particular to a kind of method of supplying power to of traffic light inverted timing device.
(2) background technology:, the traffic light inverted timing device that traffic is used is installed all generally speaking at various grade crossings that the red and green signals lamp is housed such as city, rural areas.The effect of count-down device mainly is to provide current traffic behavior (being phase place) the remaining time to pedestrian, automobile driver, bicycle driver etc., ensures the safety of traffic and unimpeded more.At present, the method for supplying power to of traffic light inverted timing device has:
1) directly power supply: directly power supply is meant directly alternating current 220V or 110V power supply is flowed to count-down device by couple of conductor with electric power.
2) power supply indirectly: power supply is meant from one group of red light, green light, amber light, control signal and obtains electric power and flow to count-down device with lead indirectly.
Both compare, can find the shortcoming of direct power supply: directly the count-down device of power supply must can provide the count-down device difference route wires of the terminal box of power supply to all directions from traffic signaling equipment or other in the process of installing, because traffic signaling equipment and count-down device apart from each other, this just needs to lay very long copper conductor, causes the inconvenience of construction and the waste of resource.And in the process of actual installation, general and the signal lamp of count-down device all is installed on the same lamp stand, and close together, therefore the count-down device of power supply only links to each other signal lamp with very short lead with count-down device indirectly, not only make things convenient for construction but also saved resource, therefore adopted the count-down device of power supply indirectly commonplace.The count-down device of indirect power supply, the method difference that is transformed into the workable low tension of count-down device according to alternating current 220V or 110V with high pressure can be divided into following two classes:
1) transformer type: at present, adopt method of supplying power to that transformer type realizes count-down device as shown in Figure 1: mainly adopt three transformers that power ratio is bigger, obtain electric power from red light, amber light, green light control line respectively, they are independent of each other simultaneously.Then transformer secondary carried out rectification respectively, merge, through the needed direct current of output count-down device after the voltage stabilizing.Since adopt three powerful transformers, the Heavy Weight of equipment, volume is big, and installation is inconvenience very; And because a certain moment has only a transformer job, do not work for other two, so not only increased the cost of manufacture of equipment, also caused the unnecessary wasting of resources.
2) switch power supply type: at present, adopt method of supplying power to that switch power supply type realizes count-down device as shown in Figure 2: to adopt three high-voltage rectifying bridges that alternating current is at first carried out rectification, and after diode-isolated, send into high-voltage switch power supply, high-voltage switch power supply is exported the needed direct supply of count-down device.In the actual use, owing to adopt high-voltage rectifying, humidity resistance to control circuit board and equipment requires higher, during simultaneously owing to green light flicker and amber light flicker, dash current is very big, seriously shortened the serviceable life of high-voltage switch power supply, and increased rush of current greatly traffic signaling equipment; Owing to be directly to the rectification of taking a sample of the high-tension electricity of control signal, in case rectifying part breaks down, will directly have influence on traffic signaling equipment, even have influence on the traffic signals at whole crossing.Therefore, adopt this method power supply, though obtained power supply service efficiency preferably, increased the electromagnetic noise of equipment, also increased the maintenance capacity of equipment simultaneously greatly, the reliability of equipment also greatly reduces.
(3) summary of the invention: the objective of the invention is to overcome the deficiency of above-mentioned prior art and provide a kind of and economize on resources, equipment in light weight, volume is little, installation is convenient, the cost of manufacture of minimizing equipment, reduce electromagnetic noise, reduce the maintenance capacity of equipment, increased the method for supplying power to of the traffic light inverted timing device of service life of equipment.
Purpose of the present invention can reach by following measure: a kind of method of supplying power to of traffic light inverted timing device is characterized in that it comprises the steps:
A, first power supply: when the teleseme point gives a green light, first power-supplying circuit control green light solid-state switch, make its conducting, after being the current limliting of voltage signal through resistance R 1 and resistance R 2, pass through diode D1-D4 rectification again, capacitor C 1 is carried out filtering, after stabilized voltage supply Z1 carries out voltage stabilizing, electric current flows through the green light solid-state switch, make its conducting, the elementary acquisition voltage of transformer T, to secondary voltage through overcommutation, filtering, voltage stabilizing, produce the needed electric power of count-down device, the microprocessor of count-down device is started working;
B, circulation obtain: when green light finishes, when teleseme was lighted amber light, the green light solid-state switch cut out, and the microprocessor of count-down device passes through signal sample circuit, send the signal of control amber light solid-state switch, make the conducting of amber light solid-state switch, transformer T also obtains electric power, when the teleseme point sends out a warning, the microprocessor of count-down device passes through signal sample circuit, send the signal of control red light solid-state switch, make the conducting of red light solid-state switch, transformer T obtains electric power; Cancel the signal of control amber light solid-state switch simultaneously, make the amber light solid-state switch close.Red light finishes, and green light is lighted, the conducting again of first power-supplying circuit control green light solid-state switch, and microprocessor is cancelled the signal of control red light solid-state switch simultaneously, makes the red light solid-state switch close, so circulation;
In order further to realize purpose of the present invention, described solid-state switch is a solid-state relay.
The present invention can produce following good effect compared with the prior art: the present invention adopts indirect power supply mode, only adopts a transformer, has increased by three solid state switches, therefore,
1. reduce unnecessary lead laying work, made things convenient for construction, also saved copper conductor;
2. volume weight all reduces than high-power transformer to have reduced two, has also reduced cost.
3. reduced rush of current, reduced electromagnetic noise teleseme.
4. increase the stability of equipment, reduced maintenance capacity, improved the serviceable life of equipment.
(4) accompanying drawing:
Fig. 1 is the synoptic diagram of the power supply mode of transformer type traffic light inverted timing device;
Fig. 2 is the synoptic diagram of the power supply mode of switch power supply type traffic light inverted timing device;
Fig. 3 is the synoptic diagram of the power supply mode of traffic light inverted timing device of the present invention;
Fig. 4 is the electrical schematic diagram of first power-supplying circuit of the present invention.
(5) embodiment: the specific embodiment of the present invention is elaborated below in conjunction with accompanying drawing:
Embodiment: a kind of method of supplying power to of traffic light inverted timing device is (referring to Fig. 3, Fig. 4), first power supply: in Fig. 3, when being added with the 220V alternating current between green light control line G and the concentric line C, be that green light is when bright, adopt G+ and G-in the circuit controling drawing 3 among Fig. 4, after the current limliting of 220V voltage signal (or 110V) through resistance R 1 and resistance R 2, pass through diode D1-D4 rectification again, capacitor C 1 is carried out filtering, after stabilized voltage supply Z1 carries out voltage stabilizing, produce pressure reduction between G+ and G-, electric current flows through the controlled stage of green light solid-state relay SSR-G, make the SSR-G conducting, elementary acquisition 220V (or 110V) voltage of transformer T, through after the transformer conversion, to secondary voltage through overcommutation, filtering, voltage stabilizing, produce the needed electric power of count-down device, the microprocessor of count-down device is started working.Circulation obtains: when green light finishes, when teleseme is lighted amber light, owing to the pressure reduction between G+ and the G-is followed extinguishing of green light and is disappeared, at this moment the signal that sends of the count-down device microprocessor analysis signal sample circuit of having worked, produce the voltage of control Y+ and Y-, make amber light solid-state relay SSR-Y conducting, transformer T also obtains electric power.When the teleseme point sent out a warning, the signal that the microprocessor analysis signal sample circuit of count-down device sends produced the voltage of controlling R+ and R-, make red light solid-state relay SSR-R conducting, transformer T obtains electric power, and the voltage of cancelling control Y+ and Y-simultaneously makes SSR-Y end, and does not influence amber light.Red light finishes, and green light is lighted, and the first power-supplying circuit of Fig. 4 is started working again, and the signal that while microprocessor analysis signal sample circuit sends is cancelled the R+ of control SSR-R and the voltage of R-, does not influence red light like this.Along with cyclical variation green, yellow, red light, transformer T has obtained to be interrupted very little at interval electric power like this, and by increasing the capacity of count-down device storage capacitor, can fully guarantee the operate as normal of count-down device.
Claims (2)
1. the method for supplying power to of a traffic light inverted timing device is characterized in that comprising the steps:
A, first power supply: when the teleseme point gives a green light, first power-supplying circuit control green light solid-state switch, make its conducting, after being the current limliting of voltage signal through resistance R 1 and resistance R 2, pass through diode D1-D4 rectification again, capacitor C 1 is carried out filtering, after stabilized voltage supply Z1 carries out voltage stabilizing, electric current flows through the green light solid-state switch, make its conducting, the elementary acquisition voltage of transformer T carries out rectification, filtering, voltage stabilizing to secondary voltage, produce the needed electric power of count-down device, the microprocessor of count-down device is started working;
B, circulation obtain: when green light finishes, when teleseme was lighted amber light, the green light solid-state switch cut out, and the microprocessor of count-down device passes through signal sample circuit, send the signal of control amber light solid-state switch, make the conducting of amber light solid-state switch, transformer T also obtains electric power, when the teleseme point sends out a warning, the microprocessor of count-down device passes through signal sample circuit, send the signal of control red light solid-state switch, make the conducting of red light solid-state switch, transformer T obtains electric power; Cancel the signal of control amber light solid-state switch simultaneously, make the amber light solid-state switch close, red light finishes, green light is lighted, the conducting again of first power-supplying circuit control green light solid-state switch, and microprocessor is cancelled the signal of control red light solid-state switch simultaneously, make the red light solid-state switch close, so circulation.
2. the method for supplying power to of a kind of traffic light inverted timing device according to claim 1 is characterized in that described solid-state switch is a solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100449172A CN100373419C (en) | 2005-10-19 | 2005-10-19 | Power supply method for traffic light inverted timing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100449172A CN100373419C (en) | 2005-10-19 | 2005-10-19 | Power supply method for traffic light inverted timing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1773567A CN1773567A (en) | 2006-05-17 |
| CN100373419C true CN100373419C (en) | 2008-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100449172A Expired - Fee Related CN100373419C (en) | 2005-10-19 | 2005-10-19 | Power supply method for traffic light inverted timing device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680174B (en) * | 2013-12-04 | 2015-10-28 | 无锡安邦电气有限公司 | Low dash current high power factor energy storage type countdown display circuit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248136A (en) * | 1990-09-18 | 1992-03-25 | Hassan Siddique | Display timer traffic signal |
| CN2100669U (en) * | 1990-02-28 | 1992-04-01 | 郝雷 | Back timing means added to the traffic signal light |
| KR930011731B1 (en) * | 1991-01-12 | 1993-12-18 | 주식회사 화인정보시스템 | Left time display system of traffic light signal |
| US5519390A (en) * | 1995-02-02 | 1996-05-21 | Casini; Peter | Traffic light timer |
| US6268805B1 (en) * | 1999-12-01 | 2001-07-31 | Damon Undrell Simon | Traffic light |
| US20030137428A1 (en) * | 2002-01-08 | 2003-07-24 | Hutchison Michael C. | Solid state traffic light apparatus having suspended particle |
| CN1474367A (en) * | 2002-08-07 | 2004-02-11 | 沈福根 | Traffic sigual lamp |
| WO2004109620A1 (en) * | 2003-06-10 | 2004-12-16 | Ortana Elektronik Yazilim Taah. Sanayi Ve Tic. Ltd. Sti. | Traffic signal lamp or counter which counts down or displays messages using different alphabets |
-
2005
- 2005-10-19 CN CNB2005100449172A patent/CN100373419C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2100669U (en) * | 1990-02-28 | 1992-04-01 | 郝雷 | Back timing means added to the traffic signal light |
| GB2248136A (en) * | 1990-09-18 | 1992-03-25 | Hassan Siddique | Display timer traffic signal |
| KR930011731B1 (en) * | 1991-01-12 | 1993-12-18 | 주식회사 화인정보시스템 | Left time display system of traffic light signal |
| US5519390A (en) * | 1995-02-02 | 1996-05-21 | Casini; Peter | Traffic light timer |
| US6268805B1 (en) * | 1999-12-01 | 2001-07-31 | Damon Undrell Simon | Traffic light |
| US20030137428A1 (en) * | 2002-01-08 | 2003-07-24 | Hutchison Michael C. | Solid state traffic light apparatus having suspended particle |
| CN1474367A (en) * | 2002-08-07 | 2004-02-11 | 沈福根 | Traffic sigual lamp |
| WO2004109620A1 (en) * | 2003-06-10 | 2004-12-16 | Ortana Elektronik Yazilim Taah. Sanayi Ve Tic. Ltd. Sti. | Traffic signal lamp or counter which counts down or displays messages using different alphabets |
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| Publication number | Publication date |
|---|---|
| CN1773567A (en) | 2006-05-17 |
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