CN2731809Y - Taxi system power controller - Google Patents
Taxi system power controller Download PDFInfo
- Publication number
- CN2731809Y CN2731809Y CN 200420092741 CN200420092741U CN2731809Y CN 2731809 Y CN2731809 Y CN 2731809Y CN 200420092741 CN200420092741 CN 200420092741 CN 200420092741 U CN200420092741 U CN 200420092741U CN 2731809 Y CN2731809 Y CN 2731809Y
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- CN
- China
- Prior art keywords
- taxi
- circuit
- voltage
- power
- onboard system
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- Expired - Fee Related
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Abstract
The utility model relates to a taxi system power controller, comprising an input end, a switch circuit, and an output end of a direct current power supply. The signal control wire of the switch circuit is connected with an empty return wire provided between the taxi empty-plate and the taximeter through the input end, and is controlled by the signal condition of the empty return wire. The output end of the switch circuit is connected with the power input end of the taxi system power to supply power. The switch circuit comprises a delay circuit, a regulation circuit, and a level detecting circuit. The delay circuit realizes the delay of the power on and off, and the control end of the regulation circuit is connected with the level detecting circuit. When the DC12V direct current power supply of the taxi has a voltage below level, the regulation circuit provides no output. The controller can realize the synchronous control of the taxi system and the taxi empty-plate, and has convenient use and electric source saving. After the passengers get in the taxi, the empty plate is put down and the taximeter starts working. The switch circuit of the controller starts working to provide power supply for the taxi system, and after the passengers get off the taxis, the power of the taxi system is cut off out of operation.
Description
Technical field
The utility model relates to a kind of power control of taxi onboard system.
Background technology
The power supply that motor vehicle uses all is the DC12V DC power supply, and onboard system needs to use this power supply sometimes.On taxi, onboard system can carry out the travel information inquiry or watch the multimedia movie data such as vehicle carried multimedia information inquiry system, need use with taximeter or empty wagons board Synchronization Control, system comes into operation behind the passenger loading, turns off system after the passenger gets off.At present existing onboard system working power is not accomplished and taxi empty wagons board or meter Synchronization Control.
The utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of taxi onboard system power control, realizes the Synchronization Control of onboard system and taxi empty wagons board or meter.
In order to address the above problem, according to the technical solution of the utility model, a kind of taxi onboard system power control is provided, comprise the dc supply input mouth, switching circuit and the dc power output end mouth that connect successively, its power input mouth connects taxi DC12V battery feed and is the switching circuit power supply; The signal control line of switching circuit be connected empty wagons board between taxi empty wagons board and the meter line that makes the return trip empty and be connected, and controlled by it; Output port is connected with the power input of onboard system, and is its power supply.
As a preferred version of the present utility model, described switching circuit comprises delay circuit part, voltage stabilizing circuit part and level sensitive circuit part, and delay circuit partly connects the voltage stabilizing circuit part, realizes the on/off time-delay; The voltage stabilizing circuit part is exported to the taxi onboard system with burning voltage, and control end connects level sensitive circuit, and testing circuit detects the DC12V DC power supply of hiring a car, and during brownout, makes voltage stabilizing circuit part no-output.
Compared with prior art, the power control that the utility model provides can be realized onboard system and taxi empty wagons board Synchronization Control, convenient use, conserver power source.The switching circuit signal control line of power control is connected with the line that makes the return trip empty between taxi empty wagons board and the meter, and controlled by its connection status, and the output of switching circuit is connected with the power input of onboard system and is its power supply.Behind the passenger loading, put down the empty wagons board, meter is started working, the switching circuit work of power control, and be the onboard system power supply; After the passenger gets off, the switching circuit no-output of power control, the Synchronization Control of realization onboard system and meter and empty wagons board.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model taxi onboard system power control.
Fig. 2 is the schematic block circuit diagram of an embodiment of the utility model taxi onboard system power control.
Fig. 3 is the electrical schematic diagram of an embodiment of the utility model taxi onboard system power control.
Fig. 4 is the utility model taxi onboard system power control and empty wagons board and meter connection diagram.
Embodiment
Referring to Fig. 1, shown in Figure 4, Fig. 1 and Fig. 4 have represented the annexation of taxi onboard system power control and taxi power-supply system, the dc supply input mouth of power control 30 connects taxi DC12V battery feed and is the switching circuit power supply; The switching circuit signal control line of power control 30 be connected empty wagons board between taxi empty wagons board 10 and the meter 20 line that makes the return trip empty and be connected, and controlled by it; Output port is connected with the power input of onboard system, and is its power supply.
Referring to shown in Figure 2, Fig. 2 has represented a most preferred embodiment of this power control, the switching circuit of power control comprises delay circuit, two groups of voltage stabilizing circuits and level sensitive circuit, the delay circuit part links to each other by the signal control line of crystal switch pipe with input power supply and switching circuit, realizes the on/off time-delay simultaneously; Be connected by switch triode between delay circuit and the voltage stabilizing circuit.The voltage stabilizing circuit part is exported to the taxi onboard system with burning voltage, and its control end connects level sensitive circuit, and testing circuit detects the DC12V DC power supply of hiring a car, during brownout, and voltage stabilizing circuit part no-output.Voltage stabilizing circuit is connected in parallel by two voltage-stabiliser tubes and constitutes, the input of first voltage-stabiliser tube is connected with the output of delay circuit, the output of first voltage-stabiliser tube links to each other with the power input of onboard system by connector J6, constitute the dc power output end mouth, the control end of first voltage-stabiliser tube connects level sensitive circuit and controlled by it; The output of second voltage-stabiliser tube connects described level sensitive circuit, for it provides working power.The reference voltage end of level sensitive circuit connects storage batteries D C12V power supply, detects the supply voltage of storage battery.
Referring to shown in Figure 3, Fig. 3 is the electrical schematic diagram of the utility model most preferred embodiment, the battery feed line EXTPWR of taxi, for the switching circuit of whole power control provides DC12V working power, signal EXTSW control switch triode Q3 makes the return trip empty, the break-make of Q2, and output forms the PWROPEN control signal thus, PWROPEN is through delay circuit U13 time-delay output time delayed signal PWRCTRL, again by behind the switch triode Q1, export to two groups of voltage stabilizing circuit U6 simultaneously, U7, low pressure voltage stabilizing circuit formation+5V burning voltage, for level sensitive circuit U12 provides+the 5V dc supply, the reference voltage end TRG of level sensitive circuit U12 is connected with taxi battery feed voltage DC12V signal EXTPWR, and carry out synchronous detecting, when taxi power supply EXTPWR＜10.5V, non-output signal LCDCTRL, during EXTPWR＞11.5V, output voltage signal LCDCTRL, make level sensitive circuit U12 work, output voltage signal LCDCTRL triggers the control end ON of high voltage stabilizer U6, make voltage stabilizing circuit work, export the 12V D.C. regulated power supply simultaneously, the loading system work of buying car in installments.
By above circuit as seen, be connected the taxi EXTSW control signal on the line that makes the return trip empty between taxi empty wagons board and the meter, control the operating state of whole switching circuit, realize the power supply of onboard system and the Synchronization Control of empty wagons board.
Claims (6)
1, a kind of taxi onboard system power control is characterized in that, this power control comprises input port, switching circuit and dc power output end mouth, and its input port and taxi DC12V battery feed also are the switching circuit power supply; The signal control line of switching circuit by input port be connected empty wagons board between taxi empty wagons board and the meter line that makes the return trip empty and link to each other, and controlled by it; Output port is connected with the power input of onboard system, and is its power supply.
2, taxi onboard system power control as claimed in claim 1, it is characterized in that: described switching circuit comprises delay circuit part, voltage stabilizing circuit part and level sensitive circuit part, delay circuit partly connects the voltage stabilizing circuit part, realizes the on/off time-delay; The voltage stabilizing circuit part is exported to the taxi onboard system with burning voltage, and its control end connects level sensitive circuit, and testing circuit detects the DC12V DC power supply of hiring a car, during brownout, and voltage stabilizing circuit part no-output.
3, taxi onboard system power control as claimed in claim 2, it is characterized in that: described voltage stabilizing circuit is connected in parallel by two voltage-stabiliser tubes and constitutes, the input of first voltage-stabiliser tube is connected with the output of described delay circuit, the output of first voltage-stabiliser tube links to each other by the power input of connector (J6) with onboard system, constitute the dc power output end mouth, the control end of first voltage-stabiliser tube connects level sensitive circuit and controlled by it; The output of second voltage-stabiliser tube connects described level sensitive circuit, for it provides working power.
4, taxi onboard system power control as claimed in claim 2 is characterized in that: the reference voltage end of described level sensitive circuit connects the described DC12V of hiring a car battery feed, detects the voltage of battery feed.
5, taxi onboard system power control as claimed in claim 2, it is characterized in that: be connected with the crystal switch pipe between the signal control line of described delay circuit and dc supply input mouth and described switching circuit, the crystal switch pipe is connected with the line that makes the return trip empty and controlled by its supply voltage.
6, taxi onboard system power control as claimed in claim 2 is characterized in that: be connected by switch triode between described delay circuit and the voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092741 CN2731809Y (en) | 2004-09-16 | 2004-09-16 | Taxi system power controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092741 CN2731809Y (en) | 2004-09-16 | 2004-09-16 | Taxi system power controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2731809Y true CN2731809Y (en) | 2005-10-05 |
Family
ID=35052123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092741 Expired - Fee Related CN2731809Y (en) | 2004-09-16 | 2004-09-16 | Taxi system power controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2731809Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833067A (en) * | 2009-03-09 | 2010-09-15 | 唐晓泉 | Power supply control unit of distributed storage battery monitoring device |
-
2004
- 2004-09-16 CN CN 200420092741 patent/CN2731809Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833067A (en) * | 2009-03-09 | 2010-09-15 | 唐晓泉 | Power supply control unit of distributed storage battery monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |