CN111262332A - Emergency lighting system and single chip microcomputer thereof - Google Patents
Emergency lighting system and single chip microcomputer thereof Download PDFInfo
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- CN111262332A CN111262332A CN202010137399.3A CN202010137399A CN111262332A CN 111262332 A CN111262332 A CN 111262332A CN 202010137399 A CN202010137399 A CN 202010137399A CN 111262332 A CN111262332 A CN 111262332A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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Abstract
The invention is suitable for the technical field of illumination, in particular to an emergency illumination system and a singlechip thereof, wherein the system is connected with a power supply for use and comprises: the transmitting module is connected with the power supply and used for providing electric energy for the emergency module; the emergency module is connected with the transmitting module through the detachable component module; the battery management unit and the light source unit are arranged in the emergency module, wherein the battery management unit is used for receiving and storing the electric energy transmitted by the transmitting module and supplying power to the light source unit and the control unit; and the control unit is arranged in the emergency module, is connected with the battery management unit, the light source unit and the transmitting module, and is used for controlling the working mode of the light source unit according to the connection state between the transmitting module and the emergency module, the voltage of the battery in the battery management unit and whether the emergency lighting system has electric energy input. This emergency lighting system can dismantle the use and can predetermine different mode according to the scene of difference, compares and has more the practicality in ordinary emergency lighting fixtures.
Description
Technical Field
The invention belongs to the technical field of illumination, and particularly relates to an emergency illumination system and a single chip microcomputer thereof.
Background
The emergency lamp used in China at present is mainly of an independent control type with a power supply, a normal power supply is connected with a common lighting power supply loop and charges a storage battery of the emergency lamp at ordinary times, and when the normal power supply is cut off, a standby power supply (the storage battery) automatically supplies power. The installation of emergency light on the existing market is comparatively fixed, can't dismantle the use, and in some emergency occasions, if the emergency light can dismantle the use will have better emergent effect.
Disclosure of Invention
In view of this, the embodiment of the invention provides an emergency lighting system and a single chip microcomputer thereof, so as to solve the problem that an emergency lamp cannot be detached for use in the prior art.
A first aspect of an embodiment of the present invention provides an emergency lighting system, including: a transmitting module, an emergency module, a detachable member module, a battery management unit, a light source unit, and a control unit;
the transmitting module is connected with a power supply and used for providing electric energy for the emergency module;
the emergency module is connected with the transmitting module through a detachable component module;
the battery management unit and the light source unit are arranged in the emergency module, wherein the battery management unit is used for receiving and storing the electric energy transmitted by the transmitting module and supplying power to the light source unit and the control unit;
the control unit is arranged in the emergency module, connected with the battery management unit, the light source unit and the transmitting module and used for controlling the working mode of the light source unit according to the connection state between the transmitting module and the emergency module, the voltage of a battery in the battery management unit and whether electric energy is input into the emergency lighting system.
Optionally, the emergency lighting system further includes a charging reception control unit;
the charging control unit is arranged in the emergency module, the input end of the charging control unit is electrically connected with the transmitting module, and the output end of the charging control unit is electrically connected with the battery management unit and the control unit, and is used for receiving electric energy transmitted by the transmitting module through the input end, converting the electric energy into direct current and stabilizing the voltage, and then outputting the direct current and the stabilized voltage to the battery management unit through the output end;
and the control unit judges whether the electric energy is input into the emergency lighting system or not according to the voltage of the output end of the charging receiving control unit.
Optionally, the detachable member module comprises:
the emergency module comprises a first magnetic part fixed on the transmitting module and a second magnetic part which is arranged opposite to the first magnetic part and fixed on the emergency module; when the first magnetic part and the second magnetic part are mutually attracted through a magnetic field, the first magnetic part and the second magnetic part are used for fixedly connecting the transmitting module and the emergency module.
Optionally, the emergency lighting system further comprises: a Hall sensing unit;
the Hall sensing unit is arranged in the emergency module, is electrically connected with the battery management unit and the control unit, and is used for detecting a magnetic field signal generated when the first magnetic piece and the second magnetic piece are mutually attracted and outputting different level signals to the control unit according to whether the magnetic field signal is detected;
and the control unit determines the connection state between the transmitting module and the emergency module according to the level signal output by the Hall sensing unit.
Optionally, the emergency lighting system further comprises: a booster circuit unit;
the booster circuit unit is arranged in the emergency module, is electrically connected with the battery management unit, the control unit and the light source unit, and is used for controlling the working mode of the light source unit according to the control signal output by the control unit;
correspondingly, the control unit is further configured to output a control signal to the boost circuit unit according to the level signal output by the hall sensing unit, the voltage of the battery in the battery management unit, and the voltage at the output end of the charging reception control unit.
Optionally, the controlling the operating mode of the light source unit according to the connection state between the transmitting module and the emergency module, the voltage of the battery in the battery management unit, and whether the emergency lighting system has power input includes:
when the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a first preset voltage range, outputting a first preset control signal to the booster circuit unit so as to enable the light source unit to work in a first preset mode; the first preset mode comprises a whole lamp lighting mode that the voltage of a battery in the battery management unit is within a first preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a second preset control signal is output to the booster circuit unit, so that the light source unit works in a second preset mode; wherein the second preset mode comprises a whole lamp non-lighting mode;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a third control preset signal is output to the booster circuit unit, so that the light source unit works in a third preset mode; wherein the third preset mode comprises a disassembled emergency lighting mode;
when the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a second preset voltage range, outputting a fourth preset control signal to the booster circuit unit so as to enable the light source unit to work in a fourth preset mode; the fourth preset mode comprises a whole lamp lighting mode that the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a fifth preset control signal is output to the booster circuit unit, so that the light source unit works in a fifth preset mode; the fifth preset mode comprises a detachable breathing illumination mode in which the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a sixth preset control signal is output to the booster circuit unit, so that the light source unit works in a sixth preset mode; the sixth preset mode comprises a whole lamp breathing illumination mode that the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage of the battery in the battery management unit is within a third preset voltage range, a seventh preset control signal is output to the booster circuit unit, so that the light source unit works in a seventh preset mode; wherein the seventh preset mode includes a no-lighting mode in which the voltage of the battery in the battery management unit is within a third preset voltage range.
Optionally, the control unit includes: the single chip microcomputer, the second resistor and the third resistor;
the singlechip includes: a P00 pin, a P01 pin, a P21 pin, a P05 pin, a P20 pin, a P17 pin, a GND pin and a VDD pin; the pin P00 is used for detecting a level signal output by the Hall sensing unit; the pin P01 is used for detecting the output end voltage of the charging receiving control unit; the P20 pin is used for detecting the voltage of the battery in the battery management unit; the P17 pin is used for outputting control signals; the GND pin is grounded; the VDD pin is connected with the battery management unit; the P17 pin is sequentially connected with the second resistor and the third resistor and then grounded, and is connected with the booster circuit unit through the second resistor; the P05 pin and the P21 pin are connected in an air-connecting mode.
Optionally, the transmitting module and the emergency module are both closed shells, the transmitting module is provided with a transmitting coil, and the emergency module is provided with a receiving coil;
the transmitting coil is used for receiving electric energy of a power supply and transmitting the electric energy to the receiving coil in a wireless charging mode; the receiving coil is electrically connected with the charging receiving control unit.
Optionally, the emergency lighting system further includes: the charging emission control unit is used for controlling the charging emission of the auxiliary power supply unit;
the power supply, the auxiliary power supply unit, the charging emission control unit and the emission coil are electrically connected in sequence;
the auxiliary power supply unit is used for converting the electric energy of the power supply into voltage-stabilizing direct current;
and the charging and transmitting control unit is used for inverting the voltage-stabilizing direct current output by the auxiliary power supply unit into high-frequency alternating current and outputting the high-frequency alternating current to the transmitting coil.
A second aspect of the embodiments of the present invention provides a single chip microcomputer, which is applied to the emergency lighting system according to any one of the first aspect, wherein the single chip microcomputer is disposed in the emergency module, connected to the battery management unit, the light source unit and the transmitting module, and configured to control a working mode of the light source unit according to a connection state between the transmitting module and the emergency module, a voltage of a battery in the battery management unit and whether electric energy is input to the emergency lighting system.
The emergency lighting system provided by the embodiment of the invention comprises a transmitting module, an emergency module, a detachable component module, a battery management unit, a light source unit and a control unit, wherein the transmitting module is connected with a power supply and can provide electric energy to the emergency module, and the battery management unit is arranged in the emergency module and is used for receiving the electric energy of the transmitting module and supplying power to the light source unit and the control unit which are arranged in the emergency module. The emergency lighting system is detachable and usable by dividing the lamp body into the emission module and the emergency module which are connected through the detachable component module and arranging the power management unit; through setting up the control unit, whether have the electric energy input among the voltage of battery and the emergency lighting system among the connection state, the battery management unit between detection emission module and the emergency module to the work of light source unit can reach better emergent result of use in the operating mode of difference according to the state control of difference.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an emergency lighting system provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an emergency lighting system including a charging reception control unit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an emergency lighting system including a hall sensing unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an emergency lighting system including a boost circuit unit according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a control unit according to an embodiment of the present invention;
fig. 6 is a schematic view of a program flow corresponding to a structure of a single chip microcomputer according to an embodiment of the present invention;
fig. 7 is a schematic physical structure diagram of an emergency lighting system including a transmitting coil and a receiving coil provided by an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an emergency lighting system including an auxiliary power supply unit and a charging emission control unit according to an embodiment of the present invention;
fig. 9 is a schematic circuit diagram of an auxiliary power supply unit according to an embodiment of the present invention;
fig. 10 is a schematic circuit diagram of a battery management unit according to an embodiment of the present invention;
fig. 11 is a schematic circuit diagram of a booster circuit unit according to an embodiment of the present invention;
fig. 12 is a schematic circuit structure diagram of a hall sensing unit according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Fig. 1 is a block diagram of an emergency lighting system provided in this embodiment, and referring to fig. 1, the emergency lighting system is connected to a power supply for use, and includes: a transmission module 100, an emergency module 200, a detachable member module 300, a battery management unit 210, a light source unit 220, and a control unit 230.
The transmitting module 100 is connected to a power supply for supplying power to the emergency module 200.
In an embodiment of the present invention, the emergency lighting system may be a lamp having two parts, a transmitting module 100 and an emergency module 200, wherein the first part, i.e. the transmitting module 100, is connected to a power source and transmits power to the second part, i.e. the emergency module 200. The emergency module 200 is provided with a light source unit 220, and the light source unit 220 may be selected according to actual requirements, may be an LED light string, and performs illumination after receiving the electric energy transmitted by the transmitting module 100.
The emergency module 200 is connected to the transmitter module 100 through a detachable member module 300.
The battery management unit 210 and the light source unit 220 are disposed in the emergency module 200, wherein the battery management unit 210 is configured to receive and store the electric energy transmitted by the transmitting module 100, and supply power to the light source unit 220 and the control unit 230.
In the embodiment of the present invention, the emergency lighting use of the lamp can be realized by providing the detachable member module 300 and the battery management unit 210. The battery management unit 210 may include a battery, which may be a rechargeable lithium battery, and a management circuit for controlling and managing the charging and discharging of the lithium battery. That is, the battery management unit 210 may store power when a power supply is connected, and may provide power to the light source unit 220 for illumination when the power supply is not connected. The battery management unit 210 and the light source unit 220 are both disposed in the emergency module 200, and the transmitting module 100 and the emergency module 200 can be detached through the detachable member module 300, so that the emergency module 200 can be detached for lighting use in some situations, such as sudden power failure, but no other light source is available around the emergency module. The setting can promote the effect of emergency lighting for the fixed illumination of ordinary emergency light.
The control unit 230 is disposed in the emergency module 200, connected to the battery management unit 210, the light source unit 220 and the emission module 100, and configured to control a working mode of the light source unit 220 according to a connection state of the emission module 100 and the emergency module 200, a voltage of the battery management unit 210 and whether an electric energy is input to the emergency lighting system.
In the embodiment of the present invention, the control unit 230 is disposed in the emergency module 200, and the control unit 230 detects whether the transmitting module 100 and the emergency module 200 are in the connected state or the disconnected state, detects the power storage condition of the battery management unit 210, detects that the lamp is currently powered on, and switches the light source unit 200 to operate in different lighting modes according to the different states. For example, in order to fit some application scenarios, the control unit 230 may set the lamp to emit light when the lamp is in an undetached state without power being connected, and not to emit light when the lamp is detached. Alternatively, no power is applied, the non-detached battery cells are set to emit light, but not emit light when the voltage of the battery management unit 210 is detected to be below a threshold, and so on. By arranging the control unit 230, a multi-scene user-defined lighting mode can be realized, the applicable scenes of the lamp are increased, and meanwhile, the applicability under certain scenes is improved.
Above-mentioned emergency lighting system, including emission module, emergency module, detachable member module, battery management unit, light source unit and the control unit, wherein emission module is connected with the power, can provide the electric energy extremely emergency module, battery management unit set up in the emergency module, be used for receiving emission module's electric energy, and for setting up in the emergency module light source unit with the control unit power supply. The emergency lighting system is detachable and usable by dividing the lamp body into the emission module and the emergency module which are connected through the detachable component module and arranging the power management unit; through setting up the control unit, whether have the electric energy input among the voltage of battery and the emergency lighting system among the connection state, the battery management unit between detection emission module and the emergency module to the work of light source unit can reach better emergent result of use in the operating mode of difference according to the state control of difference.
In some embodiments, the emergency lighting system may further include a charge-receiving control unit. The charging control unit is arranged in the emergency module, the input end of the charging control unit is electrically connected with the transmitting module, and the output end of the charging control unit is electrically connected with the battery management unit and the control unit, and is used for receiving electric energy transmitted by the transmitting module through the input end, converting the electric energy into direct current and stabilizing the voltage, and then outputting the direct current and the stabilized voltage to the battery management unit through the output end; and the control unit judges whether the electric energy is input into the emergency lighting system or not according to the voltage of the output end of the charging receiving control unit.
In the embodiment of the present invention, referring to fig. 2, the emergency lighting system may further include a charging receiving control unit 240 disposed in the emergency module 200, an input end of the charging control unit 240 is electrically connected to the transmitting module 100, and an output end of the charging control unit 240 is electrically connected to the battery management unit 210 and the control unit 230, and is configured to receive the electric energy transmitted by the transmitting module 100 through the input end, convert the electric energy into a direct current, perform voltage stabilization, and output the direct current to the battery management unit 210 through the output end. The charging control unit 240 is disposed in front of the control unit 230, and the control unit 230 may determine whether the power supply is connected by detecting the voltage of the output terminal of the charging control unit 240. When the power supply is accessed and supplied, the output end of the charging control unit 240 can detect a direct current voltage signal, otherwise, the direct current voltage signal is not detected, and the output end voltage of the charging control unit 240 can control the voltage of the output end of the charging control unit 240 when the power supply is accessed through setting the parameters of the specific components of the charging control unit 240, so that the control unit 230 can detect the power supply state and set the detection voltage, and the safety and stability of the system are also improved.
In some embodiments, the detachable member module may include: the emergency module comprises a first magnetic part fixed on the transmitting module and a second magnetic part which is arranged opposite to the first magnetic part and fixed on the emergency module; when the first magnetic part and the second magnetic part are mutually attracted through a magnetic field, the first magnetic part and the second magnetic part are used for fixedly connecting the transmitting module and the emergency module.
In the embodiment of the invention, the detachable function of the transmitting module and the emergency module is realized by adopting a magnetic part structure. Specifically, the first magnetic member and the second magnetic member may be configured to have specific positions according to the form of the emergency lighting system, so that when the first magnetic member and the second magnetic member are attracted to each other through a magnetic field, the transmitting module is fixedly connected to the emergency module. The magnetic force between the first magnetic part and the second magnetic part can be set according to the requirements of the emergency lighting system. In an embodiment of the present invention, the first magnetic member may be a magnet, and the second magnetic member may be pig iron.
In some embodiments, the emergency lighting system may further comprise a hall sensing unit. The Hall sensing unit is arranged in the emergency module, is electrically connected with the battery management unit and the control unit, and is used for detecting a magnetic field signal generated when the first magnetic piece and the second magnetic piece are mutually attracted and outputting different level signals to the control unit according to whether the magnetic field signal is detected; and the control unit determines the connection state between the transmitting module and the emergency module according to the level signal output by the Hall sensing unit.
In the embodiment of the present invention, referring to fig. 3, the emergency lighting system may further include a hall sensing unit 250 disposed in the emergency module 200, where the hall sensing unit 250 is electrically connected to the battery management unit 210 and the control unit 230. The battery management unit 210 supplies power to the hall sensing unit 250, and the control unit 230 determines the connection state between the emission module 100 and the emergency module 200 by detecting a level signal output by the hall sensing unit 250. Specifically, when the emergency lighting system adopts a magnetic structure (the magnet 110 and the pig iron 260) to realize the detachable function of the transmitting module 100 and the emergency module 200, and when the transmitting module 100 and the emergency module 200 are in a fixed connection state, the hall sensing unit 250 can detect a corresponding magnetic field signal and output a level signal to the control unit 230; on the contrary, when the transmitter module 100 and the emergency module 200 are in the detached state, the hall sensing unit 250 does not detect the corresponding magnetic field signal, and outputs another level signal to the control unit 230. The control unit 230 may determine the connection state between the transmitting module 100 and the emergency module 200 according to the difference of the received level signals sent by the hall sensing unit 250. Wherein the magnetic member may include a magnet 110 disposed in the transmitter module 100 and a pig iron 260 disposed in the emergency module 200. The above arrangement facilitates the detection of the connection state between the control unit 230 and the corresponding module 100 and 200, and the magnetic member structure is electrically connected to other units, thereby reducing the complexity of the system circuit.
In some embodiments, the emergency lighting system may further include a boost circuit unit. The booster circuit unit is arranged in the emergency module, is electrically connected with the battery management unit, the control unit and the light source unit, and is used for controlling the working mode of the light source unit according to the control signal output by the control unit; correspondingly, the control unit is further configured to output a control signal to the boost circuit unit according to the level signal output by the hall sensing unit, the voltage of the battery in the battery management unit, and the voltage at the output end of the charging reception control unit.
In the embodiment of the present invention, referring to fig. 4, the emergency lighting system may further include a boost circuit unit 270 disposed in the emergency module 200. The booster circuit 270 is electrically connected to the battery management unit 210, the control unit 230, and the light source unit 220. When the lighting system includes the voltage boost circuit 270, the control unit 230 outputs a control signal to the voltage boost circuit unit 230 according to the level signal output by the hall sensing unit 250, the voltage of the battery management unit 210, and the voltage of the output terminal of the charging reception control unit 240, and the voltage boost circuit 270 controls the operation mode of the light source unit 220 according to the control signal output by the control unit. The boost circuit 270 is more beneficial for the control unit 230 to regulate and control the light source unit 220.
In some embodiments, the controlling of the operation mode of the light source unit according to the connection state between the transmission module and the emergency module, the voltage of the battery in the battery management unit, and whether the emergency lighting system has power input includes:
when the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a first preset voltage range, outputting a first preset control signal to the booster circuit unit so as to enable the light source unit to work in a first preset mode; the first preset mode comprises a whole lamp lighting mode that the voltage of a battery in the battery management unit is within a first preset voltage range.
When the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a second preset control signal is output to the booster circuit unit, so that the light source unit works in a second preset mode; wherein the second preset mode comprises a whole lamp non-lighting mode.
When the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a third control preset signal is output to the booster circuit unit, so that the light source unit works in a third preset mode; wherein the third preset mode comprises a disassembled emergency lighting mode.
When the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a second preset voltage range, outputting a fourth preset control signal to the booster circuit unit so as to enable the light source unit to work in a fourth preset mode; the fourth preset mode comprises a whole lamp lighting mode that the voltage of the battery in the battery management unit is within a second preset voltage range.
When the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a fifth preset control signal is output to the booster circuit unit, so that the light source unit works in a fifth preset mode; the fifth preset mode comprises a breath lighting mode of a disassembly state that the voltage of a battery in the battery management unit is within a second preset voltage range.
When the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a sixth preset control signal is output to the booster circuit unit, so that the light source unit works in a sixth preset mode; and the sixth preset mode comprises a whole lamp breathing illumination mode that the voltage of a battery in the battery management unit is within a second preset voltage range.
When the control unit detects that the voltage of the battery in the battery management unit is within a third preset voltage range, a seventh preset control signal is output to the booster circuit unit, so that the light source unit works in a seventh preset mode; wherein the seventh preset mode includes a no-lighting mode in which the voltage of the battery in the battery management unit is within a third preset voltage range.
In the embodiment of the present invention, for convenience of description, the first preset voltage is set to be 5V, the second preset voltage is set to be 0V, the first preset level signal is at a high level, and the second preset level signal is at a low level. In this case, the first preset voltage range can be divided into 2.8V-3.7V, the second preset voltage range is 2.6V-2.8V, and the third preset voltage range is 2.4V-2.6V, and then:
when the control unit detects that the voltage of the output end of the charging receiving control unit is 5V and the voltage of the battery in the battery management unit is within 2.8V-3.7V, namely a power supply is connected (the power supply is connected, the battery management unit is in a disassembly state certainly), the electric energy stored by the battery management unit is sufficient, a high-level PWM signal is output to the booster circuit unit, and the light source unit is controlled to work in a whole lamp lighting mode that the voltage of the battery in the battery management unit is within 2.8V-3.7V.
When the control unit detects that the voltage of the output end of the charging receiving control unit is 0V, the level signal output by the Hall sensing unit is high level, and the voltage of the battery in the battery management unit is 2.8V-3.7V, namely no power supply is connected and not detached at the moment, the electric energy stored by the battery management unit is sufficient, a low level PWM signal is output to the booster circuit unit, and the light source unit is controlled to work in a whole lamp non-lighting mode.
When the control unit detects that the voltage of the output end of the charging receiving control unit is 0V, the level signal output by the Hall sensing unit is low level, and the voltage of the battery in the battery management unit is 2.8V-3.7V, namely no power supply is connected and the battery management unit is detached, the electric energy stored by the battery management unit is sufficient, 30% of PWM signals are output to the voltage boosting circuit unit, and the light source unit is controlled to work in an emergency lighting mode in a detached state.
When the control unit detects that the voltage of the output end of the charging receiving control unit is 5V and the voltage of the battery in the battery management unit is between 2.6V and 2.8V, namely a power supply is connected and not detached at the moment, and the electric energy stored in the battery management unit is half sufficient, a high-level PWM signal is output to the booster circuit unit, and the light source unit is controlled to work in a whole lamp lighting mode that the voltage of the battery in the battery management unit is between 2.6V and 2.8V.
When the control unit detects that the voltage of the output end of the charging receiving control unit is 0V, the level signal output by the Hall sensing unit is low level, and the voltage of the battery in the battery management unit is between 2.6V and 2.8V, namely no power supply is connected and the battery management unit is detached at the moment, the electric energy stored in the battery management unit is half-sufficient, a specific PWM signal is output to the voltage boosting circuit unit, and the light source unit is controlled to work in a breathing illumination mode in which the voltage of the battery in the battery management unit is between 2.6V and 2.8V and the battery is detached.
When the control unit detects that the voltage of the output end of the charging receiving control unit is 0V, the level signal output by the Hall sensing unit is high level, and the voltage of the battery in the battery management unit is between 2.6V and 2.8V, namely no power supply is connected and not detached at the moment, the electric energy stored by the battery management unit is half-sufficient, a specific PWM signal is output to the booster circuit unit, and the light source unit is controlled to work in a whole lamp breathing illumination mode that the voltage of the battery in the battery management unit is between 2.6V and 2.8V.
When the control unit detects that the voltage of the battery in the battery management unit is between 2.4 and 2.6V, a low-level PWM signal is output to the booster circuit unit, and the light source unit is controlled to work in a non-lighting mode that the voltage of the battery in the battery management unit is between 2.4 and 2.6V.
According to the emergency lighting system with the preset modes, the whole lamp is used for main lighting, the emergency lamp is used after the emergency lighting system is detached, the emergency lamp brightness is set to be smaller than that of the main lighting, and the service time of the emergency lighting is prolonged. When the electricity storage is insufficient after the disassembly, the electricity storage condition can be prompted in a breathing illumination mode, and the early warning effect is achieved. When the stored electricity is too low, the lighting is not carried out, and the battery is protected.
In some embodiments, the control unit may include: the single chip microcomputer, the second resistor and the third resistor;
the singlechip includes: a P00 pin, a P01 pin, a P21 pin, a P05 pin, a P20 pin, a P17 pin, a GND pin and a VDD pin; the pin P00 is used for detecting a level signal output by the Hall sensing unit; the pin P01 is used for detecting the output end voltage of the charging receiving control unit; the P20 pin is used for detecting the voltage of the battery in the battery management unit; the P17 pin is used for outputting control signals; the GND pin is grounded; the VDD pin is connected with the battery management unit; the P17 pin is sequentially connected with the second resistor and the third resistor and then grounded, and is connected with the booster circuit unit through the second resistor; the P05 pin and the P21 pin are connected in an air-connecting mode.
In the embodiment of the present invention, connection relations between each pin of the single chip, the second resistor R2, and the third resistor R3, and the rest of the units are shown in fig. 5, and the control signal in the embodiment of the present invention may be a PWM signal. Fig. 6 shows a flowchart of a program corresponding to the structure of the single chip microcomputer, and the specific detection conditions are described above and are not described herein again.
In some embodiments, the transmitting module and the emergency module are both closed housings, and the transmitting module is provided with a transmitting coil and the emergency module is provided with a receiving coil; the transmitting coil is used for receiving electric energy of a power supply and transmitting the electric energy to the receiving coil in a wireless charging mode; the receiving coil is electrically connected with the charging receiving control unit.
In the embodiment of the present invention, as shown in fig. 7, the transmitting module 100 and the emergency module 200 are both closed housings, the transmitting module 100 is provided with a transmitting coil 120, and the emergency module 200 is provided with a receiving coil 280; the transmitting coil 120 is used for receiving power from a power source and transmitting the power to the receiving coil 280 in a wireless charging manner; the receiving coil 280 is electrically connected to the charge receiving control unit (not shown in fig. 7). In the above arrangement, since the wireless charging method is used for charging, when the detachable component module is used for connection, the transmission of electric energy can be completed without exposing a circuit outside the housing, as shown in fig. 7, the detachable component module may include a magnet 110 and a pig iron 260, the magnet 110 may be located at the bottom inside the housing of the transmitting module 100, the pig iron 260 may be located at the top inside the housing of the emergency module 200, and the rest of the circuit units are located in the respective modules, so that a waterproof effect can be achieved.
In some embodiments, the emergency lighting system further comprises an auxiliary power supply unit and a charging emission control unit; the power supply, the auxiliary power supply unit, the charging emission control unit and the emission coil are electrically connected in sequence; the auxiliary power supply unit is used for converting the electric energy of the power supply into voltage-stabilizing direct current; and the charging and transmitting control unit is used for inverting the voltage-stabilizing direct current output by the auxiliary power supply unit into high-frequency alternating current and outputting the high-frequency alternating current to the transmitting coil.
In the embodiment of the present invention, referring to fig. 8, the emergency lighting system may further include an auxiliary power supply unit 140 and a charging emission control unit 130 disposed in the emission module 100, wherein the power supply, the auxiliary power supply unit 140, the charging emission control unit 130, and the emission coil 120 are electrically connected in sequence. With the above arrangement, when the power supply is a wide-voltage 100V-240V mains supply, the auxiliary power supply unit 140 can convert the wide-voltage mains supply into a regulated dc power, and the charging and transmitting control unit 130 can invert the regulated dc power output by the auxiliary power supply unit 140 into a high-frequency ac power, which is output to the transmitting coil 120, thereby improving the stability and the practicability of the system.
In some embodiments, the auxiliary power supply unit is shown in fig. 9 and includes a bridge rectifier circuit, a first inductor L1, a second inductor L2, a third inductor L3, a first resistor R1, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first capacitor C1, a first capacitor C2, a first capacitor C3, a first capacitor C4, a first diode D1, a second diode D2, and an auxiliary power supply IC (U1). The live wire of the commercial power is connected with the third end of the bridge rectifier circuit, the zero wire is connected with the first end of the bridge rectifier circuit, and the second end of the bridge rectifier circuit is connected with the first inductor L1 and the first resistor R1 respectively, and is grounded after being connected with the first capacitor C1. The first inductor L1 and the first resistor R1 are respectively connected to the second capacitor C2 and then grounded. The first pin to the fourth pin of the auxiliary power supply IC are all connected to the first inductor L1, the first resistor R1 and the second capacitor C2. And an eighth pin of the auxiliary power supply IC is connected with the charging emission control module after being sequentially connected with the fifth resistor R5, the sixth resistor R6 and the second inductor L2. And a seventh pin of the auxiliary power supply IC is connected with the sixth resistor R6 and the second inductor L2 in sequence and then is connected to the charging emission control module. And the sixth pin of the auxiliary power supply IC is connected with the fourth resistor R4 and then grounded. And a fifth pin of the auxiliary power supply IC is grounded. The third capacitor C3 is connected in parallel with the fifth resistor R5 and the sixth resistor R6, and is connected to the first diode and then grounded. The fourth capacitor C4 is connected in parallel with the first diode, and the seventh resistor R7 is connected in parallel with the fourth capacitor C4. The second diode is connected in parallel with the third capacitor C3.
In some embodiments, the battery management unit is shown in fig. 10 and includes: a seventh capacitor C7, an eighth capacitor C8, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an LED2, an LED3, a battery BAT1, and a battery management IC (U4), the connection relationship of which is shown in fig. 10. The battery management unit has the functions of trickle charge protection, overshoot protection, over-discharge protection and over-temperature protection.
In some embodiments, the boost circuit unit is shown in fig. 11, and includes: a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a third inductor L3, an LED1, a third diode, a fourth diode, and a boost circuit IC (U3), and their connection relationships are as shown in fig. 11.
In some embodiments, the hall sensing unit is shown in fig. 12, and includes: a fifth capacitor C5, a fifteenth resistor R15 and a Hall sensing IC (U2). The first pin of the Hall sensing IC is connected with the power management unit, the second pin of the Hall sensing IC is connected with the control unit, the third pin of the Hall sensing IC is grounded, a fifth capacitor C5 is connected between the first pin of the Hall sensing IC and the third pin of the Hall sensing IC, and a fifteenth resistor R15 is connected between the first pin of the Hall sensing IC and the second pin of the Hall sensing IC.
It should be understood by those skilled in the art that the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
The embodiment further provides a single chip microcomputer, which is applied to the emergency lighting system provided by the embodiment, wherein the single chip microcomputer is arranged in the emergency module, connected with the battery management unit, the light source unit and the transmitting module, and used for controlling the working mode of the light source unit according to the connection state between the transmitting module and the emergency module, the voltage of the battery in the battery management unit and whether the emergency lighting system has electric energy input.
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing functional units and models are merely illustrated as being divided, and in practical applications, the foregoing functional allocations may be performed by different functional units and modules as needed, that is, the internal structure of the device may be divided into different functional units or modules to perform all or part of the above described functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process and function of the single chip microcomputer can refer to the corresponding process in the system embodiment, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (10)
1. An emergency lighting system for use in connection with a power source, comprising: a transmitting module, an emergency module, a detachable member module, a battery management unit, a light source unit, and a control unit;
the transmitting module is connected with a power supply and used for providing electric energy for the emergency module;
the emergency module is connected with the transmitting module through a detachable component module;
the battery management unit and the light source unit are arranged in the emergency module, wherein the battery management unit is used for receiving and storing the electric energy transmitted by the transmitting module and supplying power to the light source unit and the control unit;
the control unit is arranged in the emergency module, connected with the battery management unit, the light source unit and the transmitting module and used for controlling the working mode of the light source unit according to the connection state between the transmitting module and the emergency module, the voltage of a battery in the battery management unit and whether electric energy is input into the emergency lighting system.
2. The emergency lighting system of claim 1, further comprising a charge-receiving control unit;
the charging control unit is arranged in the emergency module, the input end of the charging control unit is electrically connected with the transmitting module, and the output end of the charging control unit is electrically connected with the battery management unit and the control unit, and is used for receiving electric energy transmitted by the transmitting module through the input end, converting the electric energy into direct current and stabilizing the voltage, and then outputting the direct current and the stabilized voltage to the battery management unit through the output end;
and the control unit judges whether the electric energy is input into the emergency lighting system or not according to the voltage of the output end of the charging receiving control unit.
3. The emergency lighting system of claim 2, wherein the removable member module comprises:
the emergency module comprises a first magnetic part fixed on the transmitting module and a second magnetic part which is arranged opposite to the first magnetic part and fixed on the emergency module; when the first magnetic part and the second magnetic part are mutually attracted through a magnetic field, the first magnetic part and the second magnetic part are used for fixedly connecting the transmitting module and the emergency module.
4. The emergency lighting system of claim 3, further comprising: a Hall sensing unit;
the Hall sensing unit is arranged in the emergency module, is electrically connected with the battery management unit and the control unit, and is used for detecting a magnetic field signal generated when the first magnetic piece and the second magnetic piece are mutually attracted and outputting different level signals to the control unit according to whether the magnetic field signal is detected;
and the control unit determines the connection state between the transmitting module and the emergency module according to the level signal output by the Hall sensing unit.
5. The emergency lighting system of claim 4, further comprising: a booster circuit unit;
the booster circuit unit is arranged in the emergency module, is electrically connected with the battery management unit, the control unit and the light source unit, and is used for controlling the working mode of the light source unit according to the control signal output by the control unit;
correspondingly, the control unit is further configured to output a control signal to the boost circuit unit according to the level signal output by the hall sensing unit, the voltage of the battery in the battery management unit, and the voltage at the output end of the charging reception control unit.
6. An emergency lighting system according to claim 5, wherein said controlling the operation mode of said light source unit according to the connection state between said transmitting module and said emergency module, the voltage of the battery in said battery management unit and whether said emergency lighting system has power input comprises:
when the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a first preset voltage range, outputting a first preset control signal to the booster circuit unit so as to enable the light source unit to work in a first preset mode; the first preset mode comprises a whole lamp lighting mode that the voltage of a battery in the battery management unit is within a first preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a second preset control signal is output to the booster circuit unit, so that the light source unit works in a second preset mode; wherein the second preset mode comprises a whole lamp non-lighting mode;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a first preset voltage range, a third control preset signal is output to the booster circuit unit, so that the light source unit works in a third preset mode; wherein the third preset mode comprises a disassembled emergency lighting mode;
when the control unit detects that the voltage of the output end of the charging receiving control unit is a first preset voltage and the voltage of a battery in the battery management unit is within a second preset voltage range, outputting a fourth preset control signal to the booster circuit unit so as to enable the light source unit to work in a fourth preset mode; the fourth preset mode comprises a whole lamp lighting mode that the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a second preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a fifth preset control signal is output to the booster circuit unit, so that the light source unit works in a fifth preset mode; the fifth preset mode comprises a detachable breathing illumination mode in which the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage at the output end of the charging receiving control unit is a second preset voltage, the level signal output by the Hall sensing unit is a first preset level signal, and the voltage of the battery in the battery management unit is within a second preset voltage range, a sixth preset control signal is output to the booster circuit unit, so that the light source unit works in a sixth preset mode; the sixth preset mode comprises a whole lamp breathing illumination mode that the voltage of a battery in the battery management unit is within a second preset voltage range;
when the control unit detects that the voltage of the battery in the battery management unit is within a third preset voltage range, a seventh preset control signal is output to the booster circuit unit, so that the light source unit works in a seventh preset mode; wherein the seventh preset mode includes a no-lighting mode in which the voltage of the battery in the battery management unit is within a third preset voltage range.
7. The emergency lighting system of claim 6, wherein the control unit comprises: the single chip microcomputer, the second resistor and the third resistor;
the singlechip includes: a P00 pin, a P01 pin, a P21 pin, a P05 pin, a P20 pin, a P17 pin, a GND pin and a VDD pin; the pin P00 is used for detecting a level signal output by the Hall sensing unit; the pin P01 is used for detecting the output end voltage of the charging receiving control unit; the P20 pin is used for detecting the voltage of the battery in the battery management unit; the P17 pin is used for outputting control signals; the GND pin is grounded; the VDD pin is connected with the battery management unit; the P17 pin is sequentially connected with the second resistor and the third resistor and then grounded, and is connected with the booster circuit unit through the second resistor; the P05 pin and the P21 pin are connected in an air-connecting mode.
8. The emergency lighting system of claim 2,
the transmitting module and the emergency module are both closed shells, the transmitting module is provided with a transmitting coil, and the emergency module is provided with a receiving coil;
the transmitting coil is used for receiving electric energy of a power supply and transmitting the electric energy to the receiving coil in a wireless charging mode; the receiving coil is electrically connected with the charging receiving control unit.
9. The emergency lighting system of claim 8, further comprising: the charging emission control unit is used for controlling the charging emission of the auxiliary power supply unit;
the power supply, the auxiliary power supply unit, the charging emission control unit and the emission coil are electrically connected in sequence;
the auxiliary power supply unit is used for converting the electric energy of the power supply into voltage-stabilizing direct current;
and the charging and transmitting control unit is used for inverting the voltage-stabilizing direct current output by the auxiliary power supply unit into high-frequency alternating current and outputting the high-frequency alternating current to the transmitting coil.
10. A single chip microcomputer applied to an emergency lighting system as claimed in any one of claims 1 to 9, wherein the single chip microcomputer is disposed in the emergency module, connected to the battery management unit, the light source unit and the emission module, and configured to control an operation mode of the light source unit according to a connection state between the emission module and the emergency module, a voltage of a battery in the battery management unit and whether the emergency lighting system has an electric energy input.
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