CN111436176B - Emergency marker light and lamp management system - Google Patents
Emergency marker light and lamp management system Download PDFInfo
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- CN111436176B CN111436176B CN201811597504.0A CN201811597504A CN111436176B CN 111436176 B CN111436176 B CN 111436176B CN 201811597504 A CN201811597504 A CN 201811597504A CN 111436176 B CN111436176 B CN 111436176B
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Abstract
The application relates to an emergency marker light and an equal management system. The emergency marker lamp comprises a light-emitting unit, a control device, a resistor unit and a switch circuit, wherein the number of the resistor unit and the number of the switch circuit are multiple and equal, and one resistor unit corresponds to one switch circuit; one end of the light-emitting unit is connected with the power supply voltage, the other end of the light-emitting unit is connected with one end of each resistor unit, the other end of each resistor unit is connected with the input end of a corresponding switch circuit, the control end of each switch circuit is connected with the control device, and the output end of each switch circuit is grounded; the control device outputs a first level signal to the control end of each switch circuit in a first working mode; the control device outputs a first level signal to the control end of the switching circuit of the first part and outputs a second level signal to the control end of the switching circuit of the second part except the first part in the second working mode, and the switching circuit of the first part is controlled to be turned on and the switching circuit of the second part is controlled to be turned off. By adopting the application, the emergency indication effect is good.
Description
Technical Field
The application relates to the technical field of illumination, in particular to an emergency marker lamp and lamp management system.
Background
Emergency marker lamps are generally arranged in factories, hotels, schools, units, district staircases and other places so as to be used for firefighting emergency evacuation indication. In order to ensure the evacuation indication effect, the emergency sign lamp is normally bright, and most of the traditional emergency sign lamps keep fixed brightness, so that people are easy to get used to the brightness visually, and the emergency sign lamp is difficult to attach importance and has poor sign indication effect.
Disclosure of Invention
In view of the foregoing, it is desirable to provide an emergency sign lamp and a luminaire management system that can optimize the sign indicating effect.
The emergency marker lamp comprises a light-emitting unit, a control device, a resistor unit and a switch circuit, wherein the number of the resistor unit and the number of the switch circuit are multiple and equal, and one resistor unit corresponds to one switch circuit; one end of the light-emitting unit is connected with the power supply voltage, the other end of the light-emitting unit is connected with one end of each resistor unit, the other end of each resistor unit is connected with the input end of a corresponding switch circuit, the control end of each switch circuit is connected with the control device, and the output end of each switch circuit is grounded;
The control device outputs a first level signal to the control end of each switching circuit in a first working mode, and controls each switching circuit to be conducted; the control device outputs the first level signal to the control end of the switching circuit of the first part and outputs the second level signal to the control end of the switching circuit of the second part except the first part in the second working mode, and the switching circuit of the first part is controlled to be turned on and the switching circuit of the second part is controlled to be turned off.
The lamp management system comprises an upper computer and the emergency marker lamp, wherein the upper computer is in communication connection with the control device.
According to the emergency marker lamp and lamp management system, the luminous units are connected with the resistor units and are grounded through the corresponding switch circuits, so that one resistor unit and the corresponding switch circuit are located on the same branch, and different resistor units are located on different branches. The control device outputs a first level signal or a second level signal to control the switching circuit to be switched on or off, so as to control the branch circuit where the switching circuit is located to be switched on or off, and the corresponding resistance unit is connected with or not connected with the circuit, thereby adjusting the resistance value of the whole circuit, adjusting the current flowing through the light-emitting unit, and further adjusting the whole brightness of the emergency marker lamp. Therefore, brightness adjustment is achieved by controlling the current of the light source, the user can be attracted by adjusting the brightness, and the emergency indication effect is good.
Drawings
FIG. 1 is a schematic circuit diagram of an emergency indicator light according to an embodiment;
Fig. 2 is a schematic circuit diagram of an emergency indicator lamp according to another embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In one embodiment, referring to fig. 1, there is provided an emergency marker light including a light emitting unit 110, a control device 120, a resistance unit, and a switching circuit; the number of the resistor units and the switch circuits are multiple and equal, and one resistor unit corresponds to one switch circuit. One end of the light-emitting unit 110 is connected with a power supply voltage VCC, the other end of the light-emitting unit is connected with one end of each resistor unit, and the other end of each resistor unit is connected with the input end of a corresponding switch circuit; the control end of each switch circuit is connected with the control device 120, and the output end of each switch circuit is grounded.
The resistor unit may be a single resistor or may include a plurality of resistors. The power supply voltage VCC is a voltage required for the light emitting unit 110 to operate normally. One end of the light emitting unit 110 is connected to the power supply voltage VCC, specifically, the power supply module is connected to the power supply voltage VCC through a power port, that is, the power supply module outputs the power supply voltage VCC to the light emitting unit 110 through the power port. The light emitting unit 110 is a device for displaying evacuation information by emitting light. The switching circuit at least comprises a switching tube, wherein the input end, the output end and the control end of the switching tube are respectively used as the input end, the output end and the control end of the switching circuit, and when the switching tube is conducted, the switching circuit is conducted, and when the switching tube is cut off, the switching circuit is cut off; it will be appreciated that the switching circuit may comprise other devices in addition to the switching tubes. The resistance unit and the corresponding switch circuit are positioned on the same branch, and different resistance units are positioned on different branches; the switching circuit controls the current on-off of the branch circuit. It should be noted that, in fig. 1, only two resistor units and two switching circuits are shown, and in fact, the number of resistor units and switching circuits may be other, and the ellipses between the switching circuits in fig. 1 indicate that other resistor units and corresponding switching circuits may also be present.
The control device 120 outputs a first level signal to the control end of each switch circuit in the first working mode to control each switch circuit to be conducted; the control device 120 outputs a first level signal to the control end of the switching circuit of the first part and outputs a second level signal to the control end of the switching circuit of the second part except the first part in the second working mode, so as to control the switching circuit of the first part to be turned on and the switching circuit of the second part to be turned off. Wherein the sum of the number of switching circuits of the first part and the second part is equal to the total number of switching circuits. In fig. 1, Q1 represents a switching tube of the switching circuit of the first part, Q2 represents a switching tube of the switching circuit of the second part, R1 is a resistor unit connected to the switching tube of the first part, and R2 is a resistor unit connected to the switching tube of the second part. The switching circuits of the first and second sections may be non-fixed, selected from a total number of switching circuits as desired.
The first level signal is a high level signal for turning on the switching circuit, and the second level signal is a low level signal for turning off the switching circuit. The control device 120 outputs a first level signal to the control end of the switch circuit, so as to control the switch circuit to be turned on; the control device 120 outputs a second level signal to the control terminal of the switching circuit, so as to control the switching circuit to be turned off. Specifically, the control device 120 controls each switch circuit to be turned on in the first working mode, at this time, the branch where each resistor unit is located is turned on, and each resistor unit is connected to the circuit; the control device 120 controls the switch circuit of the first part to be turned on and the switch circuit of the second part to be turned off in the second working mode, at this time, the branch where the switch circuit of the first part is turned on and the corresponding resistor unit is connected to the circuit, and the branch where the switch circuit of the second part is turned off and the corresponding resistor unit is not connected to the circuit. Therefore, the number of the resistor units connected in the first working mode is different from that connected in the second working mode, so that the resistance values of the whole circuit are different, the current flowing through the light-emitting units 110 is different, and the brightness of the whole display is different. Specifically, the brightness in the first operation mode is greater than the brightness in the second operation mode.
Further, the control device 120 may also output a second level signal to the control terminal of each switching circuit in the third working mode, so as to control each switching circuit to be turned off. At this time, the branches where the respective resistance units are located are all turned off, so that the light emitting unit 110 is in a turned-off state due to no power. Specifically, the control device 120 may include a controller, where each switch circuit is connected to the same controller; the control device 120 may include a plurality of controllers, and each switch circuit may correspond to a different controller.
In the emergency marker lamp, the light emitting unit 110 is connected to each resistor unit, and each resistor unit is connected to one resistor unit and the corresponding switch circuit through the corresponding switch circuit, so that one resistor unit and the corresponding switch circuit are located in the same branch, and different resistor units are located in different branches. The control device 120 outputs the first level signal or the second level signal to control the on or off of the switch circuit, so as to control the on or off of the branch where the switch circuit is located, and enable the corresponding resistance unit to be connected or not connected to the circuit, thereby adjusting the resistance value of the whole circuit, adjusting the current flowing through the light emitting unit 110, and further adjusting the whole brightness of the emergency marker lamp. Therefore, brightness adjustment is achieved by controlling the current of the light source, the user can be attracted by adjusting the brightness, and the emergency indication effect is good.
For example, two resistor units and two switch circuits are used, the first resistor unit being connected to the first switch circuit and the second resistor unit being connected to the second switch circuit. The control device 120 outputs a first level signal to the control terminals of the first switch circuit and the second switch circuit in the first operation mode, and controls the first switch circuit and the second switch circuit to be turned on. The control device 120 outputs a first level signal/a second level signal to the control terminal of the first switch circuit in the second operation mode, and correspondingly outputs a second level signal/the first level signal to the control terminal of the second switch circuit, so as to control the on/off of the first switch circuit and the on/off of the second switch circuit.
Specifically, the control device 120 may switch to the first operation mode when the emergency condition is satisfied; and when the emergency condition is not met, switching to a second working mode. The emergency condition refers to a condition requiring emergency evacuation, and may include receiving an emergency evacuation instruction, the current time belongs to a preset time period, and the like. Through switching to first mode when meeting emergent condition, switch to second mode when not meeting emergent condition for carry out the improvement luminance under emergent state, can attract the user to notice, and reduce luminance under non-emergent state, save the electric energy, can realize energy-conservation when guaranteeing that emergent instruction effect is good.
Specifically, the division of the switching circuit of the first portion and the switching circuit of the second portion may be set according to actual needs. For example, in one embodiment, the second operation mode includes a plurality of operation levels, and the number of switching circuits of the first portion corresponding to each operation level is different. Thus, the number of the resistor units connected to the whole circuit is different under different operation grades, so that the resistance values of the whole circuit are different, and the currents flowing through the light emitting units 110 are different, so that the brightness of the display is different. In this way, various brightness levels can be adjusted in the second mode of operation.
In one embodiment, please continue to refer to fig. 1, the light emitting unit 110 includes a plurality of parallel light emitting components, the light emitting components include a plurality of serially connected light emitters, one end of each serially connected light emitter is connected to the power supply voltage VCC, and the other end of each serially connected light emitter is connected to each resistor unit. By adopting the light emitting assembly including a plurality of serial light emitters for parallel connection, the light emitting unit 110 includes a plurality of rows and a plurality of columns of light emitters, which can increase the light emitting area and is more convenient to use. In particular, the light emitter may be an LED (LIGHT EMITTING Diode light emitting Diode). The LED is adopted, so that the luminous effect is good and the brightness is high. It is understood that in other embodiments, the light emitting unit 110 may have other structures, for example, the light emitting assembly may be a plurality of light emitting device strings and a mixed assembly, for example, a plurality of light emitting devices may be connected in series to form a unit, and then a plurality of units are connected in parallel to obtain the light emitting assembly.
In one embodiment, the resistance values of the respective resistance units are not equal. In the second working mode, the switch circuit of the first part is one of the resistor units, and multiple conditions can exist, and each condition corresponds to a different resistor unit to be connected with a resistor; at this time, since the resistance values of the resistor units are not equal, when the resistor units are connected to the circuit individually, the resistance values of the whole circuit are also different, so that the control device 120 can realize multi-level brightness adjustment when the switch circuit corresponding to one resistor unit is turned on, and the indication effect is better.
For example, two resistor units and two switching transistors are used. The resistance of the first resistor unit is not equal to the resistance of the second resistor unit. If the resistance of the first resistor unit is greater than the resistance of the second resistor unit, it is assumed that the control device 120 outputs a first level signal to the switching circuit connected to the first resistor unit and outputs a second level signal to the switching circuit connected to the second resistor unit in the first working state of the second working mode, and at this time, the brightness correspondingly adjusted is 1; in a second operating state of the second operating mode, the control device 120 outputs a second level signal to the switching circuit connected to the first resistor unit and outputs a first level signal to the switching circuit connected to the second resistor unit, and at this time, the luminance 2 is greater than the luminance 1 if the luminance correspondingly adjusted is luminance 2.
In one embodiment, the emergency sign further includes an ambient light sensor (not shown) coupled to the control device 120. The ambient light sensor senses ambient brightness to obtain a brightness value and sends the brightness value to the control device 120, the control device 120 switches to the second working mode when the brightness value is smaller than a preset value, and switches to the first working mode when the brightness value is larger than or equal to the preset value.
The preset value can be specifically set according to actual needs, for example, the preset value can be set as an environment brightness value when entering the night under a scene that the emergency marker lamp needs to be applied. Generally, when the ambient brightness is low, the brightness display of the emergency marker light is obvious, and when the ambient brightness is high, the brightness display of the emergency marker light is not obvious. Detecting ambient brightness by adopting an ambient light sensor, comparing a brightness value of the ambient brightness with a preset value, and switching to a second working mode at the moment if the brightness value is smaller than the preset value, which indicates that the brightness is lower in the current environment; the brightness value is larger than or equal to the preset value, which indicates that the brightness is higher in the current environment, and the emergency marker lamp is switched to the first working mode at the moment, so that the brightness is high, and the brightness of the emergency marker lamp in the current environment can be enhanced. Therefore, the brightness level is adjusted according to the requirement by combining the ambient brightness, and the use effect is good.
Further, the second mode of operation includes a plurality of operating levels. The control device 120 may further search the working level corresponding to the brightness value and switch to the corresponding working level when the brightness value is greater than or equal to the preset value. Different working grades correspond to different brightnesses, so that brightness adjustment of display can be achieved according to the brightness of the environment, and the indication effect is better. Specifically, the control device may store the working levels corresponding to the plurality of brightness ranges in advance, determine the brightness range to which the brightness value belongs when detecting that the brightness value is greater than or equal to the preset value, and find the working level corresponding to the determined brightness range as the working level corresponding to the brightness value, so as to work at the found working level.
In one embodiment, the emergency sign further includes a communication device (not shown) for communicating with the host computer, and the control device 120 is connected to the communication device. The upper computer is a terminal for sending instructions.
The control device 120 may receive the instruction sent by the upper computer through the communication device. The instruction may be an instruction for instructing the control device 120 to switch the operation mode, such as an emergency evacuation instruction, or may be another type of instruction. By adopting the communication device, the emergency sign lamp can communicate with other equipment, and the use is more convenient. Specifically, the control device 120 may operate in the second operation mode when the emergency evacuation instruction sent by the upper computer is not received, and operate in the first operation mode when the emergency evacuation instruction sent by the upper computer is received. In this way, the brightness switching of the emergency marker light can be controlled. Specifically, the communication device may be a wired communication device, through which the control device 120 communicates with the host computer by wire. It will be appreciated that in other embodiments, the communication device may also be a wireless communication device, through which the control device 120 communicates wirelessly with the host computer.
In one embodiment, the emergency sign further includes an audible alarm (not shown) connected to the control device 120, and when the control device 120 receives the emergency evacuation instruction sent by the host computer through the communication device, it switches to the first operation mode and sends an alarm signal to the audible alarm.
And receiving an emergency evacuation instruction, and indicating that emergency evacuation instruction is required. Through adopting audible alarm, when receiving emergent evacuation instruction, thereby except switch to the evacuation information that first mode in order to increase the luminance of display and highlight the instruction, still report to the police through audible alarm to the user is looked over the evacuation information of instruction, and emergent warning is more obvious.
In one embodiment, the emergency sign lamp further includes a voltage stabilizing circuit (not shown), an input terminal of the voltage stabilizing circuit is connected to the power supply voltage VCC, and an output terminal of the voltage stabilizing circuit is connected to the light emitting unit 110. That is, the light emitting unit 110 is connected to the power supply voltage VCC through a voltage stabilizing circuit. The supply voltage VCC is stabilized by a voltage stabilizing circuit, and the voltage stabilizing circuit outputs the stabilized supply voltage to the light emitting unit 110. By adopting the voltage stabilizing circuit, the stability of supplying power to the light emitting unit 110 can be improved, thereby improving the stability of luminance display.
In one embodiment, the emergency sign lamp further includes a filter circuit (not shown), an input terminal of the filter circuit is connected to the power supply voltage VCC, and an output terminal of the filter circuit is connected to the light emitting unit 110. That is, the light emitting unit 110 is connected to the power supply voltage VCC through a filter circuit. The power supply voltage VCC is filtered by a filter circuit, and the filter circuit outputs the filtered power supply voltage to the light emitting unit 110. By adopting the filter circuit, the current output to the light emitting unit 110 can be smoother, and the service life of the light emitting unit 110 can be improved.
Specifically, the emergency marker light may employ a voltage stabilizing circuit and a filtering circuit, where the voltage stabilizing circuit, the filtering circuit and the light emitting unit 110 are sequentially connected, or the filtering circuit, the voltage stabilizing circuit and the light emitting unit 110 are sequentially connected. That is, the power supply voltage VCC may be regulated and then filtered and then output to the light emitting unit 110, or may be regulated and then output to the light emitting unit 110. In this way, the operation stability and the service life of the light emitting unit 110 can be improved through voltage stabilization and filtering.
In one embodiment, the emergency sign lamp further includes a voltage conversion circuit (not shown), where one end of the voltage conversion circuit is connected to the voltage, and the other end of the voltage conversion circuit is connected to the control device 120. The voltage connected to one end of the voltage conversion circuit can be the mains supply or the voltage output by other power supply modules. The voltage conversion circuit converts the accessed voltage into the voltage required by the operation of the control device 120 and outputs the voltage to the control device 120, so that the normal operation of the control device 120 can be ensured, and the use is convenient.
In one embodiment, the emergency marker light further includes a current limiting resistor, the number of the current limiting resistors is equal to the number of the switch circuits, and one switch circuit corresponds to one current limiting resistor; the control end of each switch circuit is connected with the control device 120 through a corresponding current limiting resistor. The current limiting resistor is used for limiting the current of the branch, so that the device can be prevented from being burnt out due to overlarge current, and the use safety of the emergency marker lamp is improved. For example, referring to fig. 2, the control terminal of the first switching circuit is connected to the control device 120 through a first current limiting resistor R3, and the control terminal of the second switching circuit is connected to the control device 120 through a second current limiting resistor R4.
In one embodiment, referring to fig. 2, the switching transistors of each switching circuit may be S8050 transistors. The S8050 triode has small power, and the power consumption can be reduced by adopting the low-power S8050 triode.
In one embodiment, a lamp management system is provided, which includes an upper computer and the emergency sign lamp, and the upper computer is in communication connection with the control device 120. The operations that the upper computer can execute are described above, and are not described herein.
The lamp management system adopts the emergency marker lamp, and has excellent emergency indication effect.
As will be described in detail below with reference to fig. 2, the light emitting unit 110 includes two parallel light emitting components, the light emitting components include a plurality of LEDs connected in series, the resistance of the first resistor unit R1 is greater than that of the second resistor unit R2, and the two transistors operate in a saturated state. As shown in table 1 below, a 4-level brightness adjustment may be achieved, wherein brightness 2 is brighter than brightness 1. Wherein, LED1_on_off is the level signal output by the control device 120 to the first transistor, and LED2_on_off is the level signal output by the control device 120 to the second transistor.
TABLE 1
| LED1_ON_OFF | LED2_ON_OFF | Brightness of light |
| Low level | Low level | 0 Extinguish |
| High level | Low level | 1 |
| Low level | High level | 2 |
| High level | High level | 3 |
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. The emergency marker lamp is characterized by comprising a light-emitting unit, a control device, a resistor unit and a switch circuit, wherein the number of the resistor unit and the number of the switch circuit are multiple and equal, and one resistor unit corresponds to one switch circuit; one end of the light-emitting unit is connected with a power supply voltage, the other end of the light-emitting unit is connected with one end of each resistor unit, one ends of the resistor units connected with the light-emitting units are connected with each other, the other ends of the resistor units are connected with the input ends of corresponding switch circuits, the control ends of the switch circuits are connected with the control device, and the output ends of the switch circuits are grounded;
The control device outputs a first level signal to the control end of each switching circuit in a first working mode, and controls each switching circuit to be conducted; the control device outputs the first level signal to the control end of the switching circuit of the first part and outputs the second level signal to the control end of the switching circuit of the second part except the first part in the second working mode, the switching circuit of the first part is controlled to be on, the switching circuit of the second part is controlled to be off, wherein the resistance values of the resistance units are different, the first level signal and the second level signal control the corresponding resistance units to be connected or not connected to the circuit, and therefore the resistance value of the whole circuit is adjusted, and the brightness of the whole emergency marker lamp is adjusted.
2. The emergency sign lamp of claim 1, wherein the light-emitting unit comprises a plurality of parallel light-emitting components, the light-emitting components comprise a plurality of serially connected light emitters, one ends of the serially connected light emitters are connected with the power supply voltage, and the other ends of the serially connected light emitters are connected with each resistor unit.
3. The emergency sign of claim 1, further comprising an ambient light sensor coupled to the control device;
the ambient light sensor senses ambient brightness to obtain a brightness value and sends the brightness value to the control device, the control device is switched to the second working mode when the brightness value is smaller than a preset value, and is switched to the first working mode when the brightness value is larger than or equal to the preset value.
4. The emergency sign of claim 1, further comprising a communication device for communicating with an upper computer, the control device being coupled to the communication device.
5. The emergency sign of claim 4, further comprising an audible alarm coupled to the control device, wherein the control device switches to the first mode of operation and sends an alarm signal to the audible alarm when receiving the emergency evacuation instruction sent by the host computer via the communication device.
6. The emergency sign of claim 1, further comprising a filter circuit having an input connected to the supply voltage and an output connected to the light emitting unit.
7. The emergency sign lamp of claim 1, further comprising a voltage conversion circuit having one end connected to a voltage and the other end connected to the control device.
8. The emergency sign of claim 1, wherein the switching tubes of each switching circuit are triodes.
9. The emergency sign of any one of claims 1-8, further comprising a number of current limiting resistors equal to the number of switching circuits, one switching circuit corresponding to each current limiting resistor; the control end of each switch circuit is connected with the control device through a corresponding current limiting resistor.
10. A light management system, comprising an upper computer and the emergency marker light of any one of claims 1-9, wherein the upper computer is in communication connection with the control device.
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| CN201811597504.0A CN111436176B (en) | 2018-12-26 | 2018-12-26 | Emergency marker light and lamp management system |
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| CN201811597504.0A CN111436176B (en) | 2018-12-26 | 2018-12-26 | Emergency marker light and lamp management system |
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| CN209497658U (en) * | 2018-12-26 | 2019-10-15 | 湖南汇博电子科技股份有限公司 | Emergent identification lamp and lamps and lanterns management system |
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| AU2012100729A4 (en) * | 2011-05-25 | 2012-06-28 | QU, Feng | LED Decorative Light |
| CN104969663B (en) * | 2013-02-05 | 2017-06-23 | 株式会社流明斯 | LED light device |
| CN104252847B (en) * | 2013-06-25 | 2016-12-07 | 施耐德电器工业公司 | Light emitting module and control method thereof |
| KR101556724B1 (en) * | 2013-12-03 | 2015-10-02 | 에스엘 주식회사 | Apparatus for displaying shift of vehicle |
| CN204119593U (en) * | 2014-08-06 | 2015-01-21 | 康佳集团股份有限公司 | Realize the single channel BOOST constant-current drive circuit that two-way LED drives |
| JP2016225208A (en) * | 2015-06-02 | 2016-12-28 | ローム株式会社 | Light emitting element drive device and switch drive device |
| JP6650238B2 (en) * | 2015-10-02 | 2020-02-19 | ローム株式会社 | LED light emitting device and LED light emitting system |
| CN207820275U (en) * | 2018-01-18 | 2018-09-04 | 浙江绍兴苏泊尔生活电器有限公司 | LED control circuit, cooking utensils |
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| CN2796297Y (en) * | 2005-05-30 | 2006-07-12 | 郑清吉 | Lamp series controller |
| JP2014241202A (en) * | 2013-06-11 | 2014-12-25 | スタンレー電気株式会社 | Led lighting device for vehicular lamp fitting |
| CN209497658U (en) * | 2018-12-26 | 2019-10-15 | 湖南汇博电子科技股份有限公司 | Emergent identification lamp and lamps and lanterns management system |
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