CN209593844U - Emergent identification lamp and lamps and lanterns management system - Google Patents
Emergent identification lamp and lamps and lanterns management system Download PDFInfo
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- CN209593844U CN209593844U CN201822193252.7U CN201822193252U CN209593844U CN 209593844 U CN209593844 U CN 209593844U CN 201822193252 U CN201822193252 U CN 201822193252U CN 209593844 U CN209593844 U CN 209593844U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
This application involves a kind of emergent identification lamps and lamps and lanterns management system.Emergent identification lamp includes switching circuit, charge-discharge circuit, luminescence unit and the control device for the adjustable pwm signal of output duty cycle to switching circuit；The input terminal of switching circuit accesses supply voltage, and the control terminal of switching circuit connects control device, and the output end of switching circuit connects charge-discharge circuit, and charge-discharge circuit connects luminescence unit one end, luminescence unit other end ground connection.Using the application, the adjusting of brightness may be implemented, mark indicating effect is good.
Description
Technical field
This application involves lighting technical fields, more particularly to a kind of emergent identification lamp and lamps and lanterns management system.
Background technique
Generally in places such as factory, hotel, school, unit and cell staircases, emergent identification lamp can be all set, in case
Fire-fighting emergent exit signs are used.In order to guarantee exit signs effect, what emergent identification lamp was usually always on, and traditional emergency
Identification light is to maintain constant brightness mostly, and mark indicating effect is poor.
Utility model content
Based on this, it is necessary in view of the above-mentioned problems, provide a kind of emergent identification lamp that can optimize mark indicating effect and
Lamps and lanterns management system.
A kind of emergent identification lamp, including switching circuit, charge-discharge circuit, luminescence unit and for output duty cycle it is adjustable
Pwm signal to the switching circuit control device；
The input terminal of the switching circuit accesses supply voltage, and the control terminal of the switching circuit connects the control dress
It sets, the output end of the switching circuit connects the charge-discharge circuit, and the charge-discharge circuit connects described luminescence unit one end,
The luminescence unit other end ground connection.
A kind of lamps and lanterns management system, including host computer and above-mentioned emergent identification lamp, the host computer and the control are filled
Set communication connection.
Above-mentioned emergent identification lamp and lamps and lanterns management system, switching circuit, charge-discharge circuit and luminescence unit are sequentially connected, control
Device output pwm signal processed is to switching circuit, the turn-on time of controllable switch circuit.Within the time of switching circuit conducting,
Luminescence unit power supply, while charge-discharge circuit energy storage are supplied voltage to by switching circuit access；When switching circuit ends
In, charge-discharge circuit discharges to power to luminescence unit, and the voltage that charge-discharge circuit provides is less than defeated when switching circuit is connected
Out to the voltage of luminescence unit.Control device adjusts the output to the duty ratio of the pwm signal of switching circuit, i.e. adjusting a cycle
The turn-on time of interior switching circuit to adjust the voltage swing at luminescence unit both ends, and then adjusts the luminance of luminescence unit
Degree, realizes the adjustment to brightness, and mark indicating effect is good.
Detailed description of the invention
Fig. 1 is the electrical block diagram of emergent identification lamp in one embodiment；
Fig. 2 is the electrical block diagram of emergent identification lamp in another embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
In one embodiment, with reference to Fig. 1, a kind of emergent identification lamp, including switching circuit 110, charge and discharge electricity are provided
Road 120, luminescence unit 130 and be used for the adjustable PWM of output duty cycle (Pulse Width Modulation pulse width tune
System) signal to switching circuit 110 control device 140；The input terminal of switching circuit 110 accesses supply voltage VCC, switching circuit
110 control terminal connects control device 140, and the output end of switching circuit 110 connects charge-discharge circuit 120；Charge-discharge circuit 120
Connect 130 one end of luminescence unit, 130 other end of luminescence unit ground connection.In Fig. 1, PWM_VOLTAGE indicates that control device 140 is defeated
Pwm signal out.
Wherein, the input terminal of switching circuit 110 accesses supply voltage VCC, specifically can be and connects electricity by power port
For source module to access supply voltage VCC, i.e. power module exports supply voltage VCC to switching circuit 110 by power port
Input terminal.Wherein, luminescence unit 130 is the device that evacuation information is shown by shining.The working condition of switching circuit 110 can
To control the working condition of charge-discharge circuit 120: when switching circuit 110 is connected, charge-discharge circuit 120 can charge to store up
Can, when switching circuit 110 ends, charge-discharge circuit 120 can discharge, to power to luminescence unit 130.
Duty ratio refers in a cycle of pwm signal, the time of the level signal of the conducting of switching circuit 110 is made to account for one
The ratio of a total time in period.For example, duty ratio is equal to a cycle so that switching circuit 110 is connected in high level signal as an example
The time of middle high level signal accounts for the ratio of total time.The change in duty cycle of pwm signal, so as to switch electricity in a cycle
The conducting duration on road 110 changes.Specifically, control device 140 can be the duty that instruction based on the received adjusts pwm signal
Than being also possible to the period according to setting, the regulative mode of setting recycles the duty ratio for adjusting pwm signal.
In above-mentioned emergent identification lamp, switching circuit 110, charge-discharge circuit 120 and luminescence unit 130 are sequentially connected, control
140 output pwm signal of device is to switching circuit 110, the turn-on time of controllable switch circuit 110.It is connected in switching circuit 110
Time in, the supply voltage VCC accessed by switching circuit 110 powers to luminescence unit 130, at the same charge-discharge circuit 120 store up
Energy；Within the time that switching circuit 110 ends, the electric discharge of charge-discharge circuit 120 to luminescence unit 130 to power, charge-discharge circuit
120 voltages provided, which are less than when switching circuit 110 is connected, to be exported to the voltage of luminescence unit 130.That is, as shown in figure 1, in switch electricity
In the case of two kinds of 110 on and off of road, the voltage swing at ADC_VOLTAGE is unequal, and be connected when be greater than cut-off when.
Control device 140 adjusts the output to the duty ratio of the pwm signal of switching circuit 110, i.e. switching circuit 110 in adjusting a cycle
Turn-on time, to adjust the voltage swing at 130 both ends of luminescence unit, and then adjust the light emission luminance of luminescence unit 130, it is real
Now to the adjustment of brightness, indicate that indicating effect is good.
In one embodiment, switching circuit 110 includes MOS (Metal Oxide Semiconductor metal-oxide
Object-semiconductor) pipe, the input terminal of metal-oxide-semiconductor accesses supply voltage, and the control terminal of metal-oxide-semiconductor connects control device 140, metal-oxide-semiconductor it is defeated
Outlet connects charge-discharge circuit 120.The input of the input, output end of metal-oxide-semiconductor and control terminal respectively as switching circuit 110
End, output end and control terminal, metal-oxide-semiconductor conducting, then switching circuit 110 is connected；Metal-oxide-semiconductor cut-off, then switching circuit 110 ends.It can
To understand, switching circuit 110 be can also be using other kinds of switch, such as triode.
In one embodiment, with reference to Fig. 2, charge-discharge circuit 120 includes inductance L1, capacitor C1 and diode D, inductance L1
The output end of one end connection switch circuit 110, the other end connect luminescence unit 130；One end after capacitor C1 and diode D series connection
The other end after the output end of connection switch circuit 110, series connection connects luminescence unit 130, i.e. capacitor C1 and diode D series connection
Afterwards, diode D connection switch circuit 110, capacitor C1 connection luminescence unit 130 be can be, be also possible to diode D connection and shine
Unit 130, capacitor C1 connection switch circuit 110.The common end grounding of capacitor C1 and diode D.
Charge-discharge circuit 120 is formed by using inductance L1, capacitor C1 and diode D, when switching circuit 110 is connected
In, inductance L1 stores electric energy, and within the time that switching circuit 110 ends, inductance L1 charges to capacitor C1, capacitor C1 is discharged to
Luminescence unit 130.So, it can be achieved that charge and discharge, structure are simple.
In one embodiment, luminescence unit 130 includes the luminescence component of multiple parallel connections, and luminescence component includes multiple series connection
Photophore, photophore series connection after one end connect charge-discharge circuit 120, the other end ground connection.Using including multiple series connection photophores
Luminescence component carry out in parallel, then luminescence unit 130 includes the photophore of multiple rows and multiple column, light-emitting area can be increased,
It is more convenient to use.Specifically, photophore can be LED (Light Emitting Diode light emitting diode).Using LED, hair
Light effect is good, and brightness is high.
It should be noted that only depicting the two of them LED component in a luminescence unit 130, one in Fig. 1
Two LED in LED component, in an actually luminescence unit 130 in the quantity and a LED component of LED component LED number
Amount can be other, and the ellipsis in Fig. 1 between LED component indicates the omission that can also have between other LED components, LED
Number expression can also have other LED.It is appreciated that in other embodiments, luminescence unit 130 can also be other structures,
For example luminescence component can also be multiple photophore strings and mix the component of composition, for example, it may be multiple photophore series connection groups
At a unit, multiple units carry out parallel connections and obtain luminescence component again.
In one embodiment, with reference to Fig. 2, above-mentioned emergent identification lamp further includes divider resistance R and luminous for detecting
The electric current of unit 130 simultaneously exports the first adjustment signal to control device when the electric current of luminescence unit 130 is greater than predetermined current
140, the current detecting of the second adjustment signal to control device 140 is exported when the electric current of luminescence unit 130 is less than predetermined current
Circuit 150.Luminescence unit 130 is grounded by divider resistance R；Current detection circuit 150 connects luminescence unit 130 and control device
140.First adjustment signal is used to indicate the duty ratio for reducing pwm signal, and the second adjustment signal, which is used to indicate, increases pwm signal
Duty ratio.
Since the brightness of luminescence unit 130 is influenced by the electric current of luminescence unit 130, electric current is bigger, and brightness is bigger；If shining
The electric current of unit 130 is greater than predetermined current, then it represents that the electric current of luminescence unit 130 is excessive, it is excessively high to will lead to brightness, at this point, defeated
First adjustment signal out, control device 140 receive the first adjustment signal and reduce the duty ratio of pwm signal, shine to reduce
The electric current of unit 130, to reduce brightness.If the electric current of luminescence unit 130 is less than predetermined current, then it represents that luminescence unit 130
Electric current is too small, it is too low to will lead to brightness, at this point, the second adjustment signal of output, control device 140 receives the second adjustment signal and increases
The duty ratio of big pwm signal, to increase the electric current of luminescence unit 130, to improve brightness.In this way, can be according to luminescence unit
130 actual electric currents adjust the brightness of luminescence unit 130, and validity is high.Moreover, because being easy after 130 aging of luminescence unit
The brightness under same electric current is caused to reduce, by adjusting brightness according to the actual current of luminescence unit 130, even if luminescence unit
130 there is aging, there will not be apparent brightness change, and indicating effect is good.
Specifically, the range that may belong to 20KHz-200KHz using frequency of current detection circuit 150.In this range
Frequency carry out current detecting and brightness adjustment, will not cause visual flashing occur because of the duty cycle adjustment of pwm signal,
Good visual effect.
In one embodiment, the first adjustment signal and the second adjustment signal are in high level signal and low level signal
It is a kind of.Current detection circuit 150 includes current sampling circuit and comparator, and current sampling circuit connects luminescence unit 130 and ratio
Compared with device, comparator connects control device 140.Current sampling circuit acquires the electric current of luminescence unit 130 and exports to comparator, than
Compared with the electric current and predetermined current that device compares luminescence unit 130, and the corresponding level signal of comparison result is exported to control device
140.For example, it may be exporting high level signal when the electric current of luminescence unit 130 is greater than predetermined current, in luminescence unit 130
Electric current be less than predetermined current when export low level signal, be also possible to luminescence unit 130 electric current be greater than predetermined current when
Output low level signal exports high level signal when the electric current of luminescence unit 130 is less than predetermined current.
In one embodiment, above-mentioned emergent identification lamp further includes that the communication device for communicating with host computer (is schemed not
Show), 140 connection communication device of control device.Wherein, host computer is the terminal for sending instruction.
Control device 140 can receive the instruction that host computer is sent by communication device.Instruction, which can be, is used to indicate control
Device 140 processed carries out the instruction of duty cycle adjustment, such as emergency evacuation instruction, can also be other kinds of instruction.By adopting
With communication device, so that emergent identification lamp can be communicated with other equipment, use is more convenient.Specifically, control device 140 can be
When receiving the emergency evacuation instruction of host computer transmission, increase the duty ratio of pwm signal, to increase brightness.In this way, can control
The brightness of emergent identification lamp processed switches.Specifically, communication device can be wire communication device, and control device 140 passes through wired
Communication device and host computer wire communication.It is appreciated that in other embodiments, communication device is also possible to wireless communication dress
It sets, device and host computer wirelessly communicate control device 140 by wireless communication.
In one embodiment, above-mentioned emergent identification lamp further includes that the voice guard of connection control device 140 (is schemed not
Show).Specifically, report can be transmitted when the emergency evacuation for receiving host computer transmission by communication device instructs in control device 140
Signal is warned to voice guard.
Emergency evacuation instruction is received, expression needs to carry out emergency evacuation instruction.By using voice guard, receiving
It to when emergency evacuation instruction, is alarmed by voice guard, to attract user to check, the evacuation information of instruction, emergency are reminded
It becomes apparent from.
In one embodiment, above-mentioned emergent identification lamp further includes voltage regulator circuit (not shown), the input terminal of voltage regulator circuit
Access supply voltage VCC, the input terminal of the output end connection switch circuit 110 of voltage regulator circuit.That is, switching circuit 110 passes through surely
Volt circuit accesses supply voltage VCC.Supply voltage VCC carries out steady pressure treatment by voltage regulator circuit, after voltage regulator circuit exports pressure stabilizing
Supply voltage to switching circuit 110.By using voltage regulator circuit, the stability of power supply can be improved, so that it is aobvious to improve brightness
The stability shown.
In one embodiment, above-mentioned emergent identification lamp further includes filter circuit (not shown), the input terminal of filter circuit
Access supply voltage VCC, the input terminal of the output end connection switch circuit 110 of filter circuit.That is, switching circuit 110 passes through filter
Wave circuit accesses supply voltage VCC.Supply voltage VCC is filtered by filter circuit, after filter circuit output filtering
Supply voltage to switching circuit 110.By using filter circuit, electric current can be made smoother, improve the service life of device.
Specifically, above-mentioned emergent identification lamp can use voltage regulator circuit and filter circuit, voltage regulator circuit, filter circuit together
It is linked in sequence with switching circuit 110 or filter circuit, voltage regulator circuit and switching circuit 110 is linked in sequence.That is, for access
Supply voltage VCC, can first pass through to be filtered after pressure stabilizing and exported again to switching circuit 110, after filtering can also being first passed through
Pressure stabilizing is carried out to be exported again to switching circuit 110.In this way, the job stability of device can be improved and make by pressure stabilizing and filtering
Use the service life.
In one embodiment, above-mentioned emergent identification lamp further includes voltage conversion circuit (not shown), voltage conversion circuit
Voltage is accessed in one end, and the other end connects control device 140.Wherein, the voltage of voltage conversion circuit one end access can be alternating current,
It is also possible to the voltage of other power modules output.The voltage of access is converted to control device 140 and worked by voltage conversion circuit
Required voltage is simultaneously exported to control device 140, so, it can be ensured that the normal work of control device 140, it is easy to use.
In one embodiment, above-mentioned emergent identification lamp further includes that the variable resistor device of connection control device 140 (is schemed not
Show), variable resistor device is serially connected in the circuit at 130 place of luminescence unit.That is, variable resistor device, which can be, is connected to switch
Between circuit 110 and charge-discharge circuit 120, it is also possible to be connected between charge-discharge circuit 120 and luminescence unit 130, may be used also
It is grounded with luminescence unit 130 by variable resistor device.
Specifically, control device 140 can control variable resistor device with output resistance regulating command to variable resistor device
Adjust resistance value.Wherein, variable resistor device is the device of adjustable whole resistance value.It is used for by the output of control device 140
It indicates that the resistance adjustment for adjusting resistance value instructs, adjusts resistance value to control variable resistor device, so that the resistance value of circuit entirety changes,
The electric current for passing through luminescence unit 130 changes, to adjust luminous brightness.In this way, can further pass through whole resistance value
The adjusting for carrying out further progress difference brightness is adjusted, the grade of brightness regulation can be increased, brightness regulation effect is more preferable.
For example, variable resistor device can be including total electric-controlled switch, resistance and divide electric-controlled switch, resistance and point automatically controlled open
The quantity of pass is multiple and equal；One resistance, one point of electric-controlled switch of corresponding series connection, and after connecting with total electric-controlled switch into
Row is in parallel, is serially connected in the circuit at 130 place of luminescence unit after in parallel.When not needing by adjusting resistance value to adjust brightness,
Control device 140, which can control total electric-controlled switch and close splitting or integrating electric-controlled switch, to be disconnected；It is bright to adjust by adjusting resistance value in needs
When spending, a control device 140 can control total electric-controlled switch and disconnect and adjust the quantity for dividing electric-controlled switch to be closed, to adjust
The resistance value of variable resistor device, and then the brightness for adjusting luminescence unit 130 is shown.
In one embodiment, a kind of lamps and lanterns management system, including host computer and emergent identification lamp above-mentioned are provided, on
Position machine and control device 140 communicate to connect.Wherein, the operation that host computer can execute is in preceding explanation, and this will not be repeated here.
Above-mentioned lamps and lanterns management system, due to using aforementioned emergent identification lamp, similarly, mark indicating effect is excellent.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (8)
1. a kind of emergent identification lamp, which is characterized in that including switching circuit, charge-discharge circuit, luminescence unit and for export account for
Sky is than adjustable pwm signal to the control device of the switching circuit；
The input terminal of the switching circuit accesses supply voltage, and the control terminal of the switching circuit connects the control device, institute
The output end for stating switching circuit connects the charge-discharge circuit, and the charge-discharge circuit connects described luminescence unit one end, described
Luminescence unit other end ground connection.
2. emergent identification lamp according to claim 1, which is characterized in that the charge-discharge circuit include inductance, capacitor and
Diode, described inductance one end connect the output end of the switching circuit, and the other end connects the luminescence unit, the capacitor and
One end after the Diode series connects the other end after the output end of the switching circuit, series connection and connects the luminous list
Member, and the common end grounding of the capacitor and the diode.
3. emergent identification lamp according to claim 1, which is characterized in that the luminescence unit includes multiple in parallel shines
Component, the luminescence component include multiple concatenated photophores, and one end connects the charge-discharge circuit after the photophore series connection,
Other end ground connection.
4. emergent identification lamp according to claim 1, which is characterized in that further include divider resistance and described for detecting
The electric current of luminescence unit simultaneously exports the first adjustment signal to the control when the electric current of the luminescence unit is greater than predetermined current
Device, the electricity that the second adjustment signal to the control device is exported when the electric current of the luminescence unit is less than the predetermined current
Current detection circuit；The luminescence unit is grounded by the divider resistance, and the current detection circuit connects the luminescence unit
With the control device, first adjustment signal is used to indicate the duty ratio for reducing the pwm signal, and described second adjusts letter
Number it is used to indicate the duty ratio for increasing the pwm signal.
5. emergent identification lamp according to claim 1, which is characterized in that further include the communication dress for being communicated with host computer
It sets, the control device connects the communication device.
6. emergent identification lamp according to claim 5, which is characterized in that further include the sound report for connecting the control device
Alert device.
7. emergent identification lamp described in any one of -6 according to claim 1, which is characterized in that further include connecting the control
The variable resistor device of device, the variable resistor device are serially connected in the circuit where the luminescence unit.
8. a kind of lamps and lanterns management system, which is characterized in that including emergency described in any one of host computer and claim 1-7
Identification light, the host computer and the control device communicate to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822193252.7U CN209593844U (en) | 2018-12-26 | 2018-12-26 | Emergent identification lamp and lamps and lanterns management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822193252.7U CN209593844U (en) | 2018-12-26 | 2018-12-26 | Emergent identification lamp and lamps and lanterns management system |
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| Publication Number | Publication Date |
|---|---|
| CN209593844U true CN209593844U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822193252.7U Active CN209593844U (en) | 2018-12-26 | 2018-12-26 | Emergent identification lamp and lamps and lanterns management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436175A (en) * | 2018-12-26 | 2020-07-21 | 湖南汇博电子科技股份有限公司 | Emergency marker lamp and lamp management system |
-
2018
- 2018-12-26 CN CN201822193252.7U patent/CN209593844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111436175A (en) * | 2018-12-26 | 2020-07-21 | 湖南汇博电子科技股份有限公司 | Emergency marker lamp and lamp management system |
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