CN110571913B - Emergency power supply management method, device, equipment and storage medium for closed space - Google Patents
Emergency power supply management method, device, equipment and storage medium for closed space Download PDFInfo
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- CN110571913B CN110571913B CN201910808653.5A CN201910808653A CN110571913B CN 110571913 B CN110571913 B CN 110571913B CN 201910808653 A CN201910808653 A CN 201910808653A CN 110571913 B CN110571913 B CN 110571913B
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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
- H02J9/005—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting using a power saving mode
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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
- 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
- H02J9/061—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 for DC powered loads
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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
- H02J9/062—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 for AC powered loads
- H02J9/065—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 for AC powered loads for lighting purposes
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- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a method and a device for managing emergency power supply in a closed space, wherein the method comprises the steps of detecting an external power supply power-off signal, switching to a first emergency power supply mode, connecting an emergency power supply battery with a controller and all loads in an emergency circuit, supplying power to the controller and all loads in the emergency circuit, judging the trapped state in the closed space, switching to a second emergency power supply mode if the closed space is not trapped, connecting the emergency power supply battery with the controller but disconnecting the loads in the emergency circuit, and keeping the power supply mode. According to the emergency power supply battery management and control system, the trapped condition in the closed space is judged, the load output of the emergency power supply is managed and controlled, the electric energy consumption is reduced, and therefore the emergency power supply battery utilization rate is improved.
Description
Technical Field
The invention relates to the technical field of power supply management, in particular to an emergency power supply management method for a closed space, an emergency power supply management device for the closed space, computer equipment and a computer readable storage medium.
Background
At present, most of closed spaces are provided with emergency power supplies, so that the condition that people are trapped due to the fact that an external power supply is powered off can be switched to a battery for power supply at once, and the safety of the trapped people and the smooth operation of rescue are guaranteed.
However, when the external power supply is powered off, the emergency power supply in the enclosed space in the conventional technology is immediately switched to the battery power supply and works until the battery is protected by low voltage, so that a lot of unnecessary power loss is generated, and the utilization rate of the emergency power supply is low.
Disclosure of Invention
In view of the above, it is necessary to provide an emergency power management method for an enclosed space, an emergency power management apparatus for an enclosed space, a computer device and a computer readable storage medium for solving the technical problem of low battery utilization rate of emergency power in the conventional technology.
A method for managing emergency power supply in a closed space comprises the following steps:
detecting an external power supply power-off signal, and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode;
judging the trapping state in the closed space;
if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
An enclosed space emergency power management device, comprising:
the first emergency power supply module is used for detecting an external power supply power-off signal and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode;
the information judgment module is used for judging the trapped state in the closed space;
the second emergency power supply module is used for switching to a second emergency power supply mode if the closed space is judged to be in the unmanned state; and the emergency power supply battery disconnects the load connection in the emergency circuit in the second emergency power supply mode, and the emergency power supply battery keeps the power supply mode.
A computer device comprising a processor and a memory, the memory storing a computer program that when executed by the processor performs the steps of: detecting an external power supply power-off signal, and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode; judging the trapping state in the closed space; if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of: detecting an external power supply power-off signal, and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode; judging the trapping state in the closed space; if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
According to the emergency power management method and device for the enclosed space, the computer equipment and the storage medium, when an external power outage signal is detected, the first emergency power supply mode is switched to, so that the emergency power battery is communicated with all loads in the controller and the emergency circuit to supply power for all loads in the controller and the emergency circuit, the trapped state in the enclosed space is judged, if the enclosed space is not trapped, the second emergency power supply mode is switched to, so that the emergency power battery is communicated with the controller but the load in the emergency circuit is disconnected, and the power supply mode is kept. According to the emergency power supply battery management and control system, the trapped condition in the closed space is judged, and especially under the unmanned state, the load output of the emergency power supply is managed and controlled, so that the electric energy consumption is reduced, and the emergency power supply battery utilization rate is improved.
Drawings
FIG. 1 is a diagram illustrating an exemplary embodiment of a method for emergency power management in an enclosed space;
FIG. 2 is a circuit diagram of a method for emergency power management in an enclosed space according to one embodiment;
FIG. 3 is a schematic flow chart illustrating an emergency power management method for an enclosed space according to an embodiment;
fig. 4 is a schematic diagram of an elevator emergency circuit in one embodiment;
fig. 5 is a flow chart illustrating a method of managing emergency power for an elevator according to one embodiment;
fig. 6 is a schematic flow chart of a method for judging elevator trapping in one embodiment;
FIG. 7 is a block diagram of an emergency power management apparatus for an enclosed space according to an embodiment;
FIG. 8 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention 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 invention and are not intended to limit the invention.
It should be noted that the terms "first \ second \ third" related to the embodiments of the present invention only distinguish similar objects, and do not represent a specific ordering for the objects, and it should be understood that "first \ second \ third" may exchange a specific order or sequence when allowed. It should be understood that the terms first, second, and third, as used herein, are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or otherwise described herein.
The emergency power management method for the enclosed space provided by the invention can be applied to the application scene shown in fig. 1, and fig. 1 is an application scene diagram of the emergency power management method for the enclosed space in one embodiment, wherein the enclosed space comprises an alarm module and a lighting module, when an external circuit works normally, the external circuit supplies power to an emergency power supply, a controller, the alarm module and the lighting module, and the controller can be integrated with the power supply. When the external circuit is powered off, the controller is communicated with the emergency power supply, detects an external power supply power-off signal and switches to a first emergency power supply mode; in the first emergency power supply mode, the emergency power supply battery is communicated with the controller and all loads in the emergency circuit, and the emergency power supply battery is in a power supply mode; judging the trapping state in the closed space; if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps the power supply mode.
Fig. 2 is a circuit system diagram of the application scenario, in which one end of the emergency power supply is connected to the circuit breaker through the traveling cable, and the other end of the emergency power supply is connected to the emergency lighting system and the emergency alarm system of the emergency circuit.
In an embodiment, a method for emergency power management in a closed space is provided, referring to fig. 3, where fig. 3 is a schematic flow chart of the method for emergency power management in a closed space according to an embodiment, and the method is exemplified by being applied to an emergency power controller in fig. 3, where the method for emergency power management in a closed space may include the following steps:
step S101, detecting an external power supply power-off signal, and switching to a first emergency power supply mode; the emergency power supply battery in the first emergency power supply mode is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in the power supply mode.
Specifically, after a controller of the emergency power supply in the enclosed space detects a power-off signal of an external power supply, a battery of the emergency power supply supplies power to all loads in the emergency circuit, and all loads in the emergency circuit are in a working mode. The controller of the emergency power supply can be a single chip microcomputer or other circuit control modules or devices, and the switching devices include but are not limited to relays and MOS tubes. For example, the emergency power controller may implement the emergency power battery to supply power to all loads in the emergency circuit by closing all switching devices in the emergency circuit.
Step S102, judging the trapping state in the closed space.
Specifically, after the emergency power supply is switched to the first emergency power supply mode, the controller of the emergency power supply actively receives a people trapping state signal sent by the people trapping detection device, and whether people are trapped in the enclosed space is judged according to the people trapping state signal. The trapped state comprises a trapped state and an unhampered state, and the trapped detection device can be an emergency alarm system arranged in a closed space or an optional human body infrared sensing device and the like.
Step S103, if the closed space is judged to be in a no-man state, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
Specifically, under the condition that the emergency power supply controller judges that no person is trapped in the enclosed space, the power supply output of the emergency power supply battery to the emergency circuit load is cut off, the emergency circuit load stops working, and the emergency power supply battery only supplies power to the emergency power supply controller. For example, the emergency power supply controller may shut off the output of the emergency power supply to the emergency circuit load by opening the switching devices in the emergency circuit that are connected to all of the emergency circuit loads. According to the emergency power supply management method for the enclosed space, an external power supply power-off signal is detected, the first emergency power supply mode is switched to, the emergency power supply battery is communicated with all loads in the controller and the emergency circuit to supply power for all loads in the controller and the emergency circuit, then the trapped state in the enclosed space is judged, if the trapped state is not in the enclosed space, the second emergency power supply mode is switched to, the emergency power supply battery is communicated with the controller but is disconnected with the loads in the emergency circuit, and the power supply mode is kept. According to the emergency power supply battery management and control system, the trapped condition in the closed space is judged, the load output of the emergency power supply is managed and controlled, the electric energy consumption is reduced, and therefore the emergency power supply battery utilization rate is improved.
In one embodiment, after determining that the enclosed space is in the no-man-trapped state, the method further includes: heightening a low-voltage protection point of an emergency power supply battery; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
The low-voltage protection point of the emergency power supply is used for preventing the battery from generating an over-discharge phenomenon, so that the battery is protected. However, if the emergency power supply battery in the conventional art is not powered for a long time after discharging to the low-voltage protection point, the battery may be over-discharged due to self-discharge, even damage the battery, and unnecessary power consumption may occur. Based on the method, the invention also provides a management method of the emergency power supply battery.
Specifically, under the circumstances that emergency power supply controller judges that there is not the trapped in the confined space, emergency power supply controller increases the low pressure guard point of emergency power supply battery to gather emergency power supply battery's voltage signal, detect emergency power supply battery's voltage according to above-mentioned voltage signal, guarantee that emergency power supply battery voltage is higher than the low pressure guard point after the increase, if emergency power supply battery voltage is less than or equal to the low pressure guard point after the increase, emergency power supply controller disconnection and the switching device that emergency power supply battery links to each other, emergency power supply battery ends the power supply output. The low-voltage protection point of the emergency power supply battery is increased under the condition that no person is trapped in the closed space, the emergency power supply battery is cut off in advance, and the electric energy consumption is effectively reduced, so that the number of times of the emergency power supply battery is circularly charged and discharged is reduced, and the cut-off output voltage of the emergency power supply battery is improved to prevent over-discharge.
In one embodiment, after determining that the enclosed space is in the no-man-trapped state, the method further includes: detecting the power-off duration of an external power supply; and when the power failure duration is larger than the first threshold value, the power supply mode of the emergency power supply battery is cut off.
The first threshold is a preset power-off duration, and the set value may be 1 hour. Specifically, under the condition that the emergency power supply controller judges that no person is trapped in the closed space, the emergency power supply controller times the power-off time of the external power supply, and when the power-off time of the external power supply is greater than a preset first threshold, the emergency power supply controller disconnects a switch device connected with an emergency power supply battery, and the emergency power supply battery stops power supply output. By disconnecting the emergency power supply battery switch, the emergency power supply battery cuts off the power supply to the emergency power supply controller, and the power consumption is further reduced.
In one embodiment, the emergency power load includes, but is not limited to, an emergency lighting system and an alarm system. The emergency lighting system can be a common lighting system in the closed space, and can also be a lighting system with low power consumption except the common lighting system in the closed space.
In one embodiment, if the closed space is judged to be in a trapped state, the power-off duration of the external power supply is detected; when the power failure duration is larger than a second threshold value, switching to a third emergency power supply mode; and in the third emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the emergency alarm system.
The second threshold is preset full-load emergency working time, is at least 1 hour according to international requirements, and can be set according to actual conditions. Specifically, if the emergency power supply controller determines that the enclosed space is in a trapped state, the emergency power supply controller times the power-off duration of the external power supply, and when the power-off duration of the external power supply is greater than a preset second threshold, the emergency power supply is switched to a third emergency power supply mode, and at this time, the emergency power supply controller disconnects a switching device connected with the emergency alarm system, and the power supply to the emergency alarm system is cut off. The emergency alarm system is controlled to supply power under the condition of a trapped state in the closed space, so that the electric energy consumption of the emergency power supply battery to the load is reduced, the working time of the emergency power supply battery is prolonged, and the rescue reliability is improved.
In one embodiment, after the switching to the third emergency power supply mode, when a trigger signal of an alarm key in the closed space is detected, the switching to the first emergency power supply mode is carried out.
Specifically, if the emergency power supply controller determines that the closed space is in a trapped state, and the emergency power supply is in a third emergency power supply mode, the emergency power supply controller detects a trigger signal of the alarm button, wherein the trigger signal of the alarm button can be triggered by pressing the alarm button. When the emergency power supply controller detects the trigger signal of the alarm key, the emergency power supply is switched to a first working state, and the power supply of the emergency alarm system is recovered. The power supply of the emergency alarm system is recovered, so that the reliability of rescue is improved.
In one embodiment, the determination of the trapping state in the enclosed space is not always performed, but whether trapping occurs is detected for a trapping detection time set in advance.
The time for detecting the trapped can be set according to the actual situation and can be 5 to 10 minutes. Specifically, if the emergency power supply controller detects that no person is in the closed space within the preset sleepiness detection time, determining that the sleepiness state in the closed space is a no-sleepiness state; and if the emergency power supply controller detects that a person is in the closed space within the preset person trapping detection time, determining that the person trapping state in the closed space is a person trapping state. By setting the detection time, the controller is prevented from always detecting the confined space, and the electric energy consumption of the emergency power supply battery is further reduced.
In one embodiment, the detection of whether a person is in the enclosed space is performed by detecting whether one of an output signal of the human body infrared detection device, an alarm key trigger signal and a current change signal of the emergency alarm system is received.
Specifically, the determination of drowsiness can be implemented according to one or more of the following 3 schemes: if the emergency power supply controller detects a signal output by a human body infrared device arranged in the closed space, the emergency power supply controller detects that people are trapped; if the emergency power supply controller detects a signal triggered by the alarm key, the emergency power supply controller detects that people are trapped; if the emergency power controller detects a current change signal of the emergency alarm system in the enclosed space, the emergency power controller detects that someone is trapped.
The above is a description of a method for managing emergency power supply in a closed space, and an emergency circuit in a closed space is provided below.
Referring to fig. 4, in one embodiment, there is provided a confined space emergency circuit, wherein the emergency circuit comprises: the emergency power supply circuit comprises an emergency power supply circuit and a load, wherein the load comprises an emergency lighting system and an emergency alarm system; the emergency power supply circuit includes: the emergency power supply comprises a charging circuit, an emergency power supply battery, a controller, a discharging circuit 1, a discharging circuit 2, a switching device J1, a switching device J2 and a switching device J3.
Specifically, one end of the charging loop is connected with an external power supply, the other end of the charging loop is connected with the controller, the other end of the charging loop is further connected with an emergency power supply battery through a switching device J1, connected with one end of the discharging loop 1 through a switching device J2, and connected with one end of the discharging loop 2 through a switching device J3, the other end of the discharging loop 1 is connected with the emergency alarm system, and the other end of the discharging loop 2 is connected with the emergency lighting system.
The charging loop is used for charging the emergency power supply battery in an external circuit connection state and is also used for supplying power to a load and the controller in an external power supply connection state; the emergency alarm system comprises an alarm key, a controller and a warning module, wherein the alarm key is used for sending an alarm key signal to the controller;
the emergency power supply battery is used for supplying power to the load and the controller in the power-off state of the external power supply; the controller is used for judging power failure and controlling the on-off of the switch device, and comprises a switch device J1, a switch device J2 and a switch device J3 which are closed when an external power outage signal is detected, all loads are communicated, the emergency power supply battery is in a power supply mode, and the trapped state in the closed space is judged according to a signal sent by the emergency alarm system; and if the closed space is judged to be in the state of no people trapped, the switching device J2 and the switching device J3 are disconnected so as to disconnect the emergency power supply battery from the load, and meanwhile, the power supply mode of the emergency power supply battery to the controller is kept.
Further, with continued reference to fig. 4, in one embodiment, the confined space emergency circuit further comprises: the human body infrared detection device is used for outputting a signal to the controller when detecting an external power supply power-off signal; the controller is also used for detecting the power-off duration of the external power supply; if the closed space is judged to be in the unmanned state, when the power failure time length is larger than a first threshold value, the power supply mode of the emergency power supply battery is cut off; if the closed space is judged to be in a trapped state, switching to a third emergency power supply mode when the power failure duration is larger than a second threshold value; and in the third emergency power supply mode, the emergency power supply battery cuts off the power supply output of the emergency alarm system.
The method for managing emergency power supply in enclosed space is further described below with reference to an application example, wherein the emergency power supply is used in an emergency power supply circuit of an elevator car, the power supply circuit refers to fig. 4, and the emergency power supply includes, but is not limited to, the following modules: charging circuit, accumulator, MCU, DC/DC circuit, switch device (J1, J2, J3, can be relay, MOS pipe, etc.). The charging loop converts an external power supply into a charging power supply and supplies the charging power supply to the emergency alarm system loop, the MCU switching device and the like in a normal state. The MCU can carry out signal acquisition (U, I1, I2 and I3), switch control, timing, power failure judgment and the like; DC/DC circuits are used to convert a DC voltage to a voltage level suitable for a load.
The load comprises an emergency alarm system and emergency lighting; wherein, the alarm button signal of the emergency alarm system is input into the MCU of the emergency power supply.
The optional human infrared detection device that disposes installs in the car for judge whether someone is gone to the car, its power also can get the electricity from emergency power source.
As can be seen from fig. 5, the elevator emergency power management method includes the following steps:
when the power supply outside the emergency power supply is powered off, the MCU controls the J1, the J2 and the J3 to be closed, and the emergency power supply is in a full-load emergency working state.
Secondly, the emergency power supply judges whether people are trapped or not within the detection time t3, and different discharge control is performed according to whether people are trapped or not.
The determination of the presence or absence of the trapping situation can be realized by the following 3 schemes, as shown in fig. 6, fig. 6 is a flow diagram of a trapping determination method for an elevator in one embodiment, and can be realized by one or more of the following 3 schemes:
the first scheme is as follows:
set up human infrared induction device in the car, the device can follow emergency power source and get the electricity alone, and when having the man-hour in the elevator car, the device output signal gives emergency power source. When the emergency power supply is powered off, whether the elevator is trapped or not is judged through the signal.
Scheme II:
and judging through an alarm key signal. The alarm button is arranged on the panel of the car control box, when the elevator is trapped in a power failure, the trapped people need to give an alarm through the alarm button to wait for rescue. When the external power supply is powered off, if the alarm key is triggered, the emergency power supply judges that the car is trapped by people.
The third scheme is as follows:
the judgment is made through the current change of the emergency alarm system. When the alarm key is not triggered, an interphone in the emergency alarm system is in a standby state, when the alarm key is pressed down, the interphone is triggered, and the current of the interphone system can obviously change in a triggering stage and an answering stage. The emergency power supply judges whether the elevator is trapped or not according to the current change. Or judging whether the current value of the alarm system meets the current value of the interphone in the conversation state.
In the trapping judgment of the three schemes, the detection time is set, and the trapping of the elevator can be considered as the trapping of the elevator only by detecting any one condition in the detection time in the first detection. The detection time t3 can be set according to the actual situation, and is only required to be 5-10 minutes. The update status may then be detected in real time, wherein the emergency power supply battery voltage is required to be greater than its low voltage protection value U1 during the entrapment detection process.
When the elevator is trapped, after the full-load emergency working time meets time t1 (the minimum time is 1 hour according to the national standard requirement and a margin can be reserved), the emergency power supply cuts off the power supply of the emergency alarm system so as to prolong the power supply time of emergency lighting and facilitate the trapped people to wait for rescue; when the alarm button is triggered again, the power supply of the emergency alarm system is restored again, and the trapped people can be contacted with the outside. All of the above requirements are satisfied when the battery voltage is greater than the low-voltage protection value U1.
And fourthly, when the elevator is not trapped, the MCU controls the J2 and the J3 to be disconnected, and the emergency power supply cuts off the load (except the human body infrared sensor and the alarm button) and is in a standby state with low power consumption, so that the loss of electric energy is greatly saved, and the working time of the battery is prolonged. When the time for detecting no person is greater than t2 (the set value can be 1 hour), or the battery voltage is less than the second protection value U2(U2> U1), the MCU controls to cut off J1, the battery cuts off the output, and the emergency power supply stops working. In the standby process, when the trapping is detected, the emergency power supply immediately restores the power supply of the full load and processes according to the trapping flow.
In an embodiment, an emergency power management device for enclosed space is provided, and referring to fig. 7, fig. 7 is a block diagram illustrating a structure of the emergency power management device for enclosed space in an embodiment, where the emergency power management device for enclosed space may include:
the first emergency power supply module 101 is configured to detect an external power outage signal and switch to a first emergency power supply mode; in the first emergency power supply mode, the emergency power supply battery is communicated with the controller and all loads in the emergency circuit, and the emergency power supply battery is in a power supply mode;
the information judgment module 102 is used for judging the trapped state in the closed space;
the second emergency power supply module 103 is used for switching to a second emergency power supply mode if the closed space is judged to be in an unattended state; and under the second emergency power supply mode, the emergency power supply battery disconnects the load connection in the emergency circuit, and the emergency power supply battery keeps the power supply mode.
In one embodiment, the enclosed space emergency power management apparatus further comprises: the low-voltage protection point adjusting module is used for heightening a low-voltage protection point of the emergency power supply battery after judging that the closed space is in the unmanned state; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the second emergency power supply module 103 is further configured to detect a power-off duration of the external power supply after determining that the enclosed space is in the no-man-trapping state; and when the power failure duration is larger than the first threshold value, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the enclosed space emergency power management apparatus further comprises: the third emergency power supply module is used for detecting the power-off duration of the external power supply if the trapped state in the closed space is judged; when the power failure duration is larger than a second threshold value, switching to a third emergency power supply mode; in a third emergency power mode, the emergency power supply battery is connected to the controller but disconnected from the emergency alert system.
In one embodiment, the enclosed space emergency power management apparatus further comprises: and the third emergency power supply module is also used for switching to the first emergency power supply mode after switching to the third emergency power supply mode when detecting a trigger signal of the alarm key in the closed space.
In one embodiment, the information determining module 102 is further configured to determine a trapped state; if no person is detected in the closed space within the preset detection time, determining that the trapped state in the closed space is a person-free state; and if the person is detected in the closed space within the preset detection time, determining that the trapped state in the closed space is a trapped state.
In one embodiment, the information determining module 102 is further configured to detect whether at least one of the following signals is received within a preset detection time: an output signal of the human body infrared detection device, an alarm key trigger signal and a current change signal of the emergency alarm system; if not, detecting that no person exists in the closed space; if yes, detecting that a person is in the closed space.
The enclosed space emergency power management device and the enclosed space emergency power management method of the present invention are in one-to-one correspondence, and for specific limitations of the enclosed space emergency power management device, reference may be made to the above limitations on the enclosed space emergency power management method. All or part of each module in the emergency power management device for the enclosed space can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, the computer device may be a controller, an internal structure diagram of the computer device may be as shown in fig. 8, and fig. 8 is an internal structure diagram of the computer device in the embodiment. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a method for emergency power management of an enclosed space.
Those skilled in the art will appreciate that the architecture shown in fig. 8 is merely a block diagram of some of the structures associated with the inventive arrangements and is not intended to limit the computing devices to which the inventive arrangements may be applied, as a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a computer device comprising a processor and a memory, the memory storing a computer program which when executed by the processor performs the steps of: detecting an external power supply power-off signal, and switching to a first emergency power supply mode; the emergency power supply battery in the first emergency power supply mode is communicated with the controller and all loads in the emergency circuit, and the emergency power supply battery is in a power supply mode; judging the trapping state in the closed space; if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
In one embodiment, the processor, when executing the computer program, further performs the steps of: after judging that the closed space is in a no-man state, increasing a low-voltage protection point of the emergency power supply battery; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the processor, when executing the computer program, further performs the steps of: detecting the power-off duration of an external power supply after judging that the closed space is in the state of no people trapping; and when the power failure duration is larger than the first threshold value, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the processor, when executing the computer program, further performs the steps of: all loads in emergency power supply battery intercommunication emergency circuit under first emergency power supply mode, wherein the load includes: emergency lighting systems and emergency alarm systems.
In one embodiment, the processor, when executing the computer program, further performs the steps of: if the person is trapped in the closed space, detecting the power-off duration of the external power supply; when the power-off duration is greater than a second threshold value, switching to a third emergency power supply mode; and in the third emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the emergency alarm system.
In one embodiment, the processor, when executing the computer program, further performs the steps of: and after the first emergency power supply mode is switched to the third emergency power supply mode, when a trigger signal of an alarm key in the closed space is detected, the first emergency power supply mode is switched to.
In one embodiment, the processor, when executing the computer program, further performs the steps of: judging the trapping state in the closed space, and if no person is detected in the closed space within preset detection time, determining that the trapping state in the closed space is a no-trapping state; and if the person is detected in the closed space within the preset detection time, determining that the trapped state in the closed space is a trapped state.
In one embodiment, the processor, when executing the computer program, further performs the steps of: detecting whether at least one of the following signals is received within a preset detection time: an output signal of the human body infrared detection device, an alarm key trigger signal and a current change signal of the emergency alarm system; if not, detecting that no person exists in the closed space; and if so, detecting that a person is in the closed space.
Above-mentioned computer equipment, through the computer program of operation on the treater detects external power outage signal, switches to first emergency power supply mode, and all loads in emergency power supply battery intercommunication controller and the emergency circuit for all loads power supplies in controller and the emergency circuit, judge the stranded state in the confined space again, if do not have stranded state in the confined space, switch to the emergent power supply mode of second, but the load that the emergency power supply battery intercommunication controller in the disconnection emergency circuit is connected, and keeps the power supply mode. According to the emergency power supply battery management and control system, the trapped condition in the closed space is judged, the load output of the emergency power supply is managed and controlled, the electric energy consumption is reduced, and therefore the emergency power supply battery utilization rate is improved.
One of ordinary skill in the art will appreciate that all or part of the processes of implementing the emergency power management method for enclosed space according to any one of the above embodiments may be implemented by a computer program, which may be stored in a non-volatile computer-readable storage medium, and the computer program may include the processes of the above embodiments of the methods when executed. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
Accordingly, in one embodiment there is provided a computer readable storage medium having a computer program stored thereon, the computer program when executed by a processor implementing the steps of: detecting an external power supply power-off signal, and switching to a first emergency power supply mode; the emergency power supply battery in the first emergency power supply mode is communicated with the controller and all loads in the emergency circuit, and the emergency power supply battery is in a power supply mode; judging the trapping state in the closed space; if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode.
In one embodiment, the computer program when executed by the processor further performs the steps of: after judging that the closed space is in a no-man state, increasing a low-voltage protection point of the emergency power supply battery; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the computer program when executed by the processor further performs the steps of: detecting the power-off duration of an external power supply after judging that the closed space is in the state of no people trapping; and when the power failure duration is larger than the first threshold value, the power supply mode of the emergency power supply battery is cut off.
In one embodiment, the computer program when executed by the processor further performs the steps of: all loads in emergency power supply battery intercommunication emergency circuit under first emergency power supply mode, wherein the load includes: emergency lighting systems and emergency alarm systems.
In one embodiment, the computer program when executed by the processor further performs the steps of: if the person is trapped in the closed space, detecting the power-off duration of the external power supply; when the power-off duration is greater than a second threshold value, switching to a third emergency power supply mode; and in the third emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the emergency alarm system.
In one embodiment, the computer program when executed by the processor further performs the steps of: and after the first emergency power supply mode is switched to the third emergency power supply mode, when a trigger signal of an alarm key in the closed space is detected, the first emergency power supply mode is switched to.
In one embodiment, the computer program when executed by the processor further performs the steps of: judging the trapping state in the closed space, and if no person is detected in the closed space within preset detection time, determining that the trapping state in the closed space is a no-trapping state; and if the person is detected in the closed space within the preset detection time, determining that the trapped state in the closed space is a trapped state.
In one embodiment, the computer program when executed by the processor further performs the steps of: detecting whether at least one of the following signals is received within a preset detection time: an output signal of the human body infrared detection device, an alarm key trigger signal and a current change signal of the emergency alarm system; if not, detecting that no person exists in the closed space; and if so, detecting that a person is in the closed space.
The computer readable storage medium detects an external power supply power-off signal through a stored computer program, switches to a first emergency power supply mode, the emergency power supply battery is communicated with all loads in the controller and the emergency circuit to supply power for all loads in the controller and the emergency circuit, judges the trapped state in the closed space, switches to a second emergency power supply mode if the trapped state in the closed space is not trapped, and the emergency power supply battery is communicated with the controller but disconnects the load in the emergency circuit and keeps the power supply mode. According to the emergency power supply battery management and control system, the trapped condition in the closed space is judged, the load output of the emergency power supply is managed and controlled, the electric energy consumption is reduced, and therefore the emergency power supply battery utilization rate is improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as 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 invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A method for managing emergency power supply in a closed space is characterized by comprising the following steps:
detecting an external power supply power-off signal, and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode;
judging the trapping state in the closed space;
if the closed space is judged to be in the state of no people trapped, switching to a second emergency power supply mode; in the second emergency power supply mode, the emergency power supply battery is communicated with the controller but is disconnected with the load in the emergency circuit, and the emergency power supply battery keeps in the power supply mode;
after judging that no stranded state exists in the closed space, the method further comprises the following steps: heightening a low-voltage protection point of the emergency power supply battery; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
2. The method according to claim 1, further comprising, after determining that the enclosed space is in the unattended state:
detecting the power-off duration of an external power supply;
and when the power-off duration is greater than a first threshold value, the power supply mode of the emergency power supply battery is cut off.
3. The method of claim 1, wherein the load comprises: emergency lighting systems and emergency alarm systems.
4. The method of claim 3, further comprising:
if the person is trapped in the closed space, detecting the power-off duration of an external power supply;
when the power-off duration is greater than a second threshold value, switching to a third emergency power supply mode; and in the third emergency power supply mode, the emergency power supply battery is connected with the controller but disconnected with the emergency alarm system.
5. The method of claim 4, wherein after the switching to the third emergency power mode, further comprising:
and when a trigger signal of the alarm key in the closed space is detected, switching to a first emergency power supply mode.
6. The method according to any one of claims 1 to 5, wherein the determining the trapped state in the enclosed space comprises:
if no person is detected in the closed space within preset detection time, determining that the trapped state in the closed space is a person-free state;
and if the person is detected in the closed space within the preset detection time, determining that the trapped state in the closed space is a trapped state.
7. The method of claim 6, further comprising:
detecting whether at least one of the following signals is received within a preset detection time: an output signal of the human body infrared detection device, an alarm key trigger signal and a current change signal of the emergency alarm system;
if not, detecting that no person exists in the closed space;
and if so, detecting that a person is in the closed space.
8. An enclosed space emergency circuit, comprising: an emergency power supply circuit and a load; the load includes: emergency lighting systems and emergency alarm systems;
the emergency power supply circuit includes: the emergency power supply comprises a charging circuit, an emergency power supply battery, a controller, a discharging circuit 1, a discharging circuit 2, a switching device J1, a switching device J2 and a switching device J3;
one end of the charging loop is connected with an external power supply, the other end of the charging loop is connected with the controller, the other end of the charging loop is also connected with the emergency power supply battery through the switching device J1, is connected with one end of the discharging loop 1 through the switching device J2, and is connected with one end of the discharging loop 2 through the switching device J3, the other end of the discharging loop 1 is connected with the emergency alarm system, and the other end of the discharging loop 2 is connected with the emergency lighting system;
the charging loop is used for charging the emergency power supply battery in an external circuit connection state and is also used for supplying power to the load and the controller in an external power supply connection state; the emergency alarm system comprises an alarm key and is used for sending an alarm key signal to the controller;
the controller is used for judging power failure and controlling the on-off of the switch device, and comprises a switch device J1, a switch device J2 and a switch device J3 which are closed when a detected external power outage signal is detected, the emergency power supply battery is communicated with all the loads, the emergency power supply battery is in a power supply mode, and the state of trapping people in the closed space is judged according to a signal sent by the emergency alarm system; if the closed space is judged to be in the state of no person trapped, the switching device J2 and the switching device J3 are disconnected so as to disconnect the emergency power supply battery from the load and keep the power supply mode of the emergency power supply battery to the controller;
the circuit further comprises:
the human body infrared detection device is used for outputting a signal to the controller when a person is detected in the closed space;
the controller is also used for detecting the power-off duration of the external power supply; if the closed space is judged to be in the unattended state, when the power-off duration is greater than a first threshold value, the power supply mode of the emergency power supply battery is cut off; if the trapped state in the closed space is judged, when the power-off duration is greater than a second threshold value, the emergency power supply is disconnected with the switch device J2 so as to disconnect the emergency power supply battery from the emergency alarm system.
9. An emergency power management device for an enclosed space, comprising:
the first emergency power supply module is used for detecting an external power supply power-off signal and switching to a first emergency power supply mode; in the first emergency power supply mode, an emergency power supply battery is communicated with all loads in the controller and the emergency circuit, and the emergency power supply battery is in a power supply mode;
the information judgment module is used for judging the trapped state in the closed space;
the second emergency power supply module is used for switching to a second emergency power supply mode if the closed space is judged to be in the unmanned state; in the second emergency power supply mode, the emergency power supply battery disconnects the load connection in the emergency circuit, and the emergency power supply battery keeps in the power supply mode;
the device further comprises: the low-voltage protection point adjusting module is used for increasing the low-voltage protection point of the emergency power supply battery after judging that the closed space is in the state of no people trapping; and when the voltage of the emergency power supply battery is detected to be lower than or equal to the low-voltage protection point, the power supply mode of the emergency power supply battery is cut off.
10. A computer device comprising a processor and a memory, said memory storing a computer program, characterized in that said processor, when executing said computer program, implements the steps of the method according to any one of claims 1 to 7.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583126A (en) * | 2012-02-15 | 2012-07-18 | 广州力柏能源科技有限公司 | Emergency power supply system of elevator |
| CN106160116A (en) * | 2016-08-23 | 2016-11-23 | 成都城电电力工程设计有限公司 | A kind of method of supplying power to utilizing street lamp case that charging pile is set and device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583126A (en) * | 2012-02-15 | 2012-07-18 | 广州力柏能源科技有限公司 | Emergency power supply system of elevator |
| CN106160116A (en) * | 2016-08-23 | 2016-11-23 | 成都城电电力工程设计有限公司 | A kind of method of supplying power to utilizing street lamp case that charging pile is set and device |
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