CN111436176A - Emergency marker lamp and lamp management system - Google Patents
Emergency marker lamp and lamp management system Download PDFInfo
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- CN111436176A CN111436176A CN201811597504.0A CN201811597504A CN111436176A CN 111436176 A CN111436176 A CN 111436176A CN 201811597504 A CN201811597504 A CN 201811597504A CN 111436176 A CN111436176 A CN 111436176A
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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 plurality of resistor units and a plurality of switch circuits, wherein the number of the resistor units is equal to that of the switch circuits, 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 resistance unit, the other end of each resistance unit is connected with the input end of the 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 switch circuit of the first part and outputs a second level signal to the control end of the switch circuit of the second part except the first part under the second working mode, and the switch circuit of the first part is controlled to be switched on and the switch circuit of the second part is controlled to be switched off. By adopting the method and the device, 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 a lamp management system.
Background
Generally, emergency marker lights are arranged in places such as factories, hotels, schools, units, residential quarters, staircases and the like for emergency evacuation indication in fire fighting. In order to ensure the evacuation indication effect, the emergency marker lamp is generally normally on, while the traditional emergency marker lamp mostly keeps fixed brightness, people are easily used to the brightness visually, so that the attention is difficult to be paid, and the sign indication effect is poor.
Disclosure of Invention
In view of the above, it is necessary to provide an emergency marker lamp and a lamp management system capable of optimizing the indication effect of the sign.
An emergency marker lamp comprises a light-emitting unit, a control device, a plurality of resistor units and a plurality of switch circuits, wherein the number of the resistor units is equal to that of the switch circuits, 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 resistance unit, the other end of each resistance unit is connected with the input end of the 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 to control each switch circuit to be conducted; and the control device outputs the first level signal to the control end of the switch circuit of the first part and outputs the second level signal to the control end of the switch circuit of the second part except the first part under the second working mode, and controls the switch circuit of the first part to be switched on and the switch circuit of the second part to be switched off.
A lamp management system comprises an upper computer and the emergency marker lamp, wherein the upper computer is in communication connection with a control device.
In the emergency marker lamp and lamp management system, the light-emitting unit is connected with each resistance unit, and each resistance unit is grounded through the corresponding switch circuit, so that one resistance unit and the corresponding switch circuit are in the same branch circuit, and different resistance units are in different branch circuits. The control device outputs the first level signal or the second level signal to control the switching circuit to be switched on or switched off so as to control the branch circuit where the switching circuit is located to be switched on or switched off and enable the corresponding resistance unit to be switched in or not to be switched in the circuit, so that the resistance value of the whole circuit is adjusted to adjust the current flowing through the light-emitting unit, and the brightness of the whole emergency marker lamp is adjusted. Therefore, brightness adjustment is achieved by controlling the current of the light source, attention of a user can be brought to by adjusting the brightness, and the emergency indication effect is good.
Drawings
FIG. 1 is a schematic diagram of an exemplary emergency light circuit;
fig. 2 is a schematic circuit diagram of an emergency indicator light in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, referring to fig. 1, there is provided an emergency marker lamp including a light emitting unit 110, a control device 120, a resistance unit, and a switching circuit; the number of the resistance units and the number of the switch circuits are multiple and equal, and one resistance unit corresponds to one switch circuit. One end of the light emitting unit 110 is connected to a power supply voltage VCC, the other end of the light emitting unit is connected to one end of each resistance unit, and the other end of each resistance unit is connected to the input end of the corresponding switch circuit; the control end of each switch circuit is connected to the control device 120, and the output end of each switch circuit is grounded.
The resistance unit may be a single resistance or may include a plurality of resistances. The 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, and specifically, the power supply module is connected to the power supply voltage VCC through the power port, that is, the power supply module outputs the power supply voltage VCC to the light emitting unit 110 through the power port. Among them, the light emitting unit 110 is a device that displays 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 switched on, the switching circuit is switched on, the switching tube is switched off, and the switching circuit is switched off; it will be appreciated that the switching circuit may include other devices in addition to the switching tubes. The resistance units and the corresponding switch circuits are positioned in the same branch circuit, and different resistance units are positioned in different branch circuits; the switch circuit controls the on-off of the current of the branch. It should be noted that fig. 1 only shows two resistor units and two switching tubes of the switching circuit, and actually, the number of the resistor units and the switching circuits may be other, and the ellipses between the switching tubes in fig. 1 indicate that there may be other resistor units and corresponding switching tubes.
The control device 120 outputs a first level signal to the control end of each switch circuit in the first operating mode to control each switch circuit to be turned on; the control device 120 outputs the first level signal to the control terminal of the first part of the switch circuits and outputs the second level signal to the control terminal of the second part of the switch circuits except the first part in the second operation mode, so as to control the switch circuits of the first part to be turned on and the switch circuits of the second part to be turned off. Wherein the sum of the number of switching circuits of the first part and the number of switching circuits of the second part is equal to the total number of switching circuits. In fig. 1, Q1 denotes a switching tube of the switching circuit of the first part, Q2 denotes a switching tube of the switching circuit of the second part, R1 denotes a resistance unit to which the switching tube of the first part is connected, and R2 denotes a resistance unit to which the switching tube of the second part is connected. The switching circuits of the first and second portions may not be fixed, and may be selected from the total number of switching circuits as needed.
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 terminal of the switch circuit, so as to control the switch circuit to be turned on; the control device 120 outputs the second level signal to the control terminal of the switch circuit, so as to control the switch circuit to be turned off. Specifically, the control device 120 controls each switch circuit to be turned on in the first operating mode, at this time, the branch where each resistance unit is located is turned on, and each resistance unit is connected to the circuit; the control device 120 controls the switching circuits of the first part to be turned on and the switching circuits of the second part to be turned off in the second operation mode, at this time, the branch where the switching circuit of the first part is located is turned on and the corresponding resistance unit is connected to the circuit, and the branch where the switching circuit of the second part is located is turned off and the corresponding resistance unit is not connected to the circuit. Therefore, the number of the resistor units connected in the first working mode is different from that in the second working mode, so that the overall resistance of the circuit is different, and thus the current flowing through the light emitting unit 110 is different, and the overall display brightness is different. Specifically, the luminance in the first operation mode is larger than the luminance in the second operation mode.
Further, the control device 120 may further output a second level signal to the control terminal of each switch circuit in the third operating mode, so as to control each switch circuit to be turned off. At this time, the branch circuit where each resistance unit is located is turned off, so that the light emitting unit 110 is in a turned-off state due to non-conduction. Specifically, the control device 120 may include one controller, and each switch circuit is connected to the same controller; the control device 120 may include a plurality of controllers, and each switching circuit may correspond to a different controller.
In the emergency marker lamp, the light emitting unit 110 is connected to each resistance unit, and each resistance unit is connected to each resistance unit through a corresponding switch circuit, so that one resistance unit and the corresponding switch circuit are in the same branch, and different resistance units are in different branches. The control device 120 outputs the first level signal or the second level signal to control the on/off of the switch circuit, so as to control the on/off of the branch circuit where the switch circuit is located, and to make the corresponding resistance unit access or not access the circuit, thereby adjusting the resistance value of the whole circuit, so as to adjust the current flowing through the light emitting unit 110, and further adjust the brightness of the whole emergency marker lamp. Therefore, brightness adjustment is achieved by controlling the current of the light source, attention of a user can be brought to by adjusting the brightness, and the emergency indication effect is good.
For example, taking two resistor units and two switch circuits as an example, the first resistor unit is connected to the first switch circuit, and the second resistor unit is 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 both the first switch circuit and the second switch circuit to be turned on. The control device 120 outputs the first level signal/the second level signal to the control terminal of the first switch circuit in the second operation mode, and correspondingly outputs the second level signal/the first level signal to the control terminal of the second switch circuit, so as to control the first switch circuit to be turned on/off and the second switch circuit to be turned off/on.
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 that emergency evacuation is required, and may include that an emergency evacuation instruction is received, and the current time belongs to a preset time period. Through switching to first mode, switching to the second mode when unsatisfying emergency condition when satisfying emergency condition for carry out the improvement luminance under emergency state, can attract the user to notice, and reduce luminance at non-emergency state, save the electric energy, can realize energy-conservingly when guaranteeing that emergency indication effect is good.
Specifically, the division of the switching circuit of the first part and the switching circuit of the second part 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 the 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 working grades, so that the resistance value of the whole circuit is different, the current flowing through the light emitting unit 110 is different, and the displayed brightness is different. In this way, various brightness level adjustments can be made in the second mode of operation.
In one embodiment, with reference to fig. 1, the light Emitting unit 110 includes a plurality of light Emitting elements connected in parallel, where the light Emitting elements include a plurality of serially connected light emitters, and one end of each of the serially connected light emitters is connected to a power supply voltage VCC, and the other end of each of the serially connected light emitters is connected to each of the resistor units.
In one embodiment, the resistance values of the resistor units are not equal. In the second working mode, the switching circuit of the first part is one of the resistance units, and multiple conditions can be provided, wherein each condition corresponds to a different resistance unit access resistance; at this time, since the resistance values of the resistor units are not equal, the resistance value of the whole circuit is different when different resistor units are connected to the circuit individually, 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 indicating effect is better.
For example, two resistance units and two switching tubes are used as an example. The resistance value of the first resistance unit is not equal to the resistance value of the second resistance unit. If the resistance value of the first resistance unit is greater than that of the second resistance unit, it is assumed that the control device 120 outputs the first level signal to the switch circuit connected to the first resistance unit and outputs the second level signal to the switch circuit connected to the second resistance unit in the first working state of the second working mode, and the brightness adjusted correspondingly at this time is brightness 1; in a second operating state of the second operating mode, the control device 120 outputs a second level signal to the switch circuit connected to the first resistor unit, and outputs a first level signal to the switch circuit connected to the second resistor unit, where the brightness adjusted correspondingly at this time is brightness 2, and the brightness 2 is greater than brightness 1.
In one embodiment, the emergency marker light further comprises an ambient light sensor (not shown) connected 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 greater 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 the emergency marker lamp enters night in a scene needing to be applied. Generally, when the ambient brightness is relatively low, the brightness display of the emergency marker lamp is relatively obvious, and when the ambient brightness is relatively high, the brightness display of the emergency marker lamp is not obvious. Detecting the ambient brightness by adopting an ambient light sensor, comparing the brightness value of the ambient brightness with a preset value, if the brightness value is smaller than the preset value, indicating that the brightness is lower in the current environment, and switching to a second working mode; the brightness value is larger than or equal to the preset value, which indicates that the brightness is higher in the current environment, and at the moment, the first working mode is switched to, the brightness is high, and the brightness of the emergency marker lamp in the current environment can be enhanced. Therefore, the brightness grade is adjusted according to the requirement by combining the ambient brightness, and the using effect is good.
Further, the second operating mode includes a plurality of operating levels. The control device 120 may further search for a working level corresponding to the brightness value when the brightness value is greater than or equal to the preset value, and switch to the corresponding working level. Different work grades correspond different luminance, so, can realize carrying out the regulation of the luminance that shows according to the luminance of the environment that is located, the indicating effect is better. Specifically, the control device may store in advance working levels corresponding to a plurality of luminance ranges, determine a luminance range to which the luminance value belongs when it is detected that the luminance value is greater than or equal to a preset value, and search for the working level corresponding to the determined luminance range as the working level corresponding to the luminance value to work at the searched working level.
In one embodiment, the emergency marker light further comprises a communication device (not shown) for communicating with the upper 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 transmitted from the upper computer via the communication device. The command may be a command for instructing the control device 120 to switch the operation mode, such as an emergency evacuation command, or may be another type of command. By adopting the communication device, the emergency marker lamp can be communicated with other equipment, and the use is more convenient. Specifically, the control device 120 may operate in the second operating mode when the emergency evacuation instruction sent by the upper computer is not received, and operate in the first operating mode when the emergency evacuation instruction sent by the upper computer is received. Therefore, the brightness switching of the emergency marker lamp can be controlled. Specifically, the communication device may be a wired communication device, and the control device 120 is in wired communication with the upper computer through the wired communication device. It is understood that in other embodiments, the communication device may also be a wireless communication device, and the control device 120 wirelessly communicates with the upper computer through the wireless communication device.
In one embodiment, the emergency marker light further includes an audible alarm (not shown) connected to the control device 120, and the control device 120 switches to the first operation mode and sends an alarm signal to the audible alarm when receiving an emergency evacuation command sent by the upper computer through the communication device.
And receiving an emergency evacuation instruction, which indicates that emergency evacuation instruction needs to be carried out. Through adopting audible alarm, when receiving emergent evacuation instruction, thereby except switching over to the evacuation information that first mode is in order to increase the luminance of demonstration and outstanding instruction, still report to the police through audible alarm to attract the user to look over the evacuation information of instruction, emergent warning is more obvious.
In one embodiment, the emergency marker lamp further includes a voltage stabilizing circuit (not shown), an input end of the voltage stabilizing circuit is connected to the power supply voltage VCC, and an output end 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 using 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 marker 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 supply voltage VCC through a filter circuit. The supply voltage VCC is filtered by the filter circuit, and the filter circuit outputs the filtered supply voltage to the light emitting unit 110. By using 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 lamp may adopt a voltage stabilizing circuit and a filter circuit, where the voltage stabilizing circuit and the filter circuit are sequentially connected to the light emitting unit 110, or the filter circuit, the voltage stabilizing circuit and the light emitting unit 110 are sequentially connected. That is, the input power supply voltage VCC may be first regulated, then filtered, and then output to the light emitting unit 110, or may be first filtered, then regulated, and then output to the light emitting unit 110. Thus, through voltage stabilization and filtering, the working stability and the service life of the light emitting unit 110 can be improved.
In one embodiment, the emergency marker lamp further includes a voltage conversion circuit (not shown), one end of the voltage conversion circuit is connected to a 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 may be mains supply or voltage output by other power 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 lamp further comprises current-limiting resistors, the number of the current-limiting resistors is equal to the number of the switching circuits, and one switching circuit corresponds to one current-limiting resistor; the control terminal of each switching circuit is connected to the control device 120 through a corresponding current limiting resistor. The current limiting resistor limits the current of the branch circuit, and can avoid burning out the device due to overlarge current, thereby improving the use safety of the emergency marker lamp. For example, referring to fig. 2, the control terminal of the first switch circuit is connected to the control device 120 through a first current limiting resistor R3, and the control terminal of the second switch circuit is connected to the control device 120 through a second current limiting resistor R4.
In an embodiment, referring to fig. 2, the switch tube of each switch circuit may be an S8050 transistor. The power of the S8050 triode is low, 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 marker light, wherein the upper computer is in communication connection with the control device 120. The operations that the upper computer can perform have been described previously, and are not described herein again.
The lamp management system adopts the emergency marker lamp, and similarly, the emergency indication effect is excellent.
In the following description of a detailed embodiment, referring to fig. 2, the light emitting unit 110 includes two light emitting devices connected in parallel, the light emitting devices include a plurality of L EDs connected in series, the resistance of the first resistor unit R1 is greater than the resistance of the second resistor unit R2, and the two transistors operate in saturation state, as shown in table 1 below, a 4-level brightness adjustment can be implemented, where the brightness 2 is brighter than the brightness 1, L ED1_ ON _ OFF is a level signal output by the control device 120 to the first transistor, and L ED2_ ON _ OFF is a 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 of electricity | Low level of electricity | 0 extinguishment |
| High level | Low level of electricity | 1 |
| Low level of electricity | High level | 2 |
| High level | High level | 3 |
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An emergency marker lamp is characterized by comprising a light-emitting unit, a control device, a plurality of resistor units and a plurality of switch circuits, wherein the number of the resistor units is equal to that of the switch circuits, 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 resistance unit, the other end of each resistance unit is connected with the input end of the 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 to control each switch circuit to be conducted; and the control device outputs the first level signal to the control end of the switch circuit of the first part and outputs the second level signal to the control end of the switch circuit of the second part except the first part under the second working mode, and controls the switch circuit of the first part to be switched on and the switch circuit of the second part to be switched off.
2. An emergency marker light as claimed in claim 1, wherein the light emitting unit comprises a plurality of parallel light emitting elements, the light emitting elements comprise a plurality of series connected light emitters, one end of the series connected light emitters is connected to the supply voltage, and the other end of the series connected light emitters is connected to each resistor unit.
3. An emergency marker light according to claim 1, wherein the resistance values of the resistor units are not equal.
4. An emergency marker light as claimed in claim 1, further comprising an ambient light sensor connected to the control means;
the control device 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.
5. An emergency marker light as claimed in claim 1, further comprising communication means for communicating with an upper computer, the control means being connected to the communication means.
6. An emergency marker light as claimed in claim 5, further comprising an audible alarm connected to the control device, wherein the control device switches to the first operating mode and sends an alarm signal to the audible alarm when receiving an emergency evacuation command from the upper computer through the communication device.
7. An emergency marker light according to claim 1, further comprising a filter circuit, wherein an input end of the filter circuit is connected to the supply voltage, and an output end of the filter circuit is connected to the light emitting unit.
8. An emergency marker light as claimed in claim 1, further comprising a voltage conversion circuit, wherein one end of the voltage conversion circuit is connected to a voltage and the other end of the voltage conversion circuit is connected to the control device.
9. An emergency marker light as claimed in any one of claims 1 to 8 further comprising current limiting resistors, the number of which is equal to the number of said switching circuits, one switching circuit for each current limiting resistor; and 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 to 9, the upper computer being in communication connection with the control device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811597504.0A CN111436176A (en) | 2018-12-26 | 2018-12-26 | Emergency marker lamp and lamp management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811597504.0A CN111436176A (en) | 2018-12-26 | 2018-12-26 | Emergency marker lamp 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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| CN2796297Y (en) * | 2005-05-30 | 2006-07-12 | 郑清吉 | Lamp series controller |
| US20120299488A1 (en) * | 2011-05-25 | 2012-11-29 | Feng Qu | Led decorative light |
| 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 |
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