CN109301924B - Air-drop signal activation system based on single battery and working method thereof - Google Patents

Air-drop signal activation system based on single battery and working method thereof Download PDF

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Publication number
CN109301924B
CN109301924B CN201811214542.3A CN201811214542A CN109301924B CN 109301924 B CN109301924 B CN 109301924B CN 201811214542 A CN201811214542 A CN 201811214542A CN 109301924 B CN109301924 B CN 109301924B
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air
drop
switch
mode
relay
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CN109301924A (en
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李怡麒
孙德帅
陈亚东
李嘉硕
乔凤普
刘睿
王道灿
苏勰
吴婷婷
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China North Vehicle Research Institute
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China North Vehicle Research Institute
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04Circuit 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
    • H02J9/06Circuit 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
    • H02J9/061Circuit 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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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention relates to an airdrop signal activation system based on a single battery and a working method thereof, and belongs to the technical field of power supply system design. The invention introduces the relay J1 power-on loop controlled by the air-drop safety switch K2, and can realize automatic acquisition and connection of signals and power supply in an air-drop state; a mode switch K1 is introduced to realize the switching between a double-wire system ground and a single-wire system ground and provide mode acquisition for a control unit ECU; the double-control air-drop timing logic based on the mode switch K1 and the air-drop safety switch K2 is designed, and the error operation after the control unit ECU controls the safety switch K2 to pull out the pin and the air-drop landing is avoided. The arrangement of the relay J2 can effectively ensure that the air-drop signal activation system is not influenced by the air-drop safety switch K2 under the condition that the chassis is powered on; the scheme is realized based on the internal battery of the air-drop box, no additional storage battery is added, the power consumption of the whole working time is less than 5Ah, and the weight of the air-drop box has obvious advantages.

Description

Air-drop signal activation system based on single battery and working method thereof
Technical Field
The invention belongs to the technical field of power supply system design, and particularly relates to an air-drop signal activation system based on a single battery and a working method thereof.
Background
When air-drop tasks such as disaster relief, emergency rescue and the like are carried out, a method of respectively throwing personnel and equipment is generally adopted, the personnel need to find the equipment as soon as possible after falling to the ground, the traditional mode adopts light, sound and the like, the influence of an internal power supply and an external environment is large, and the execution of the tasks is influenced because the materials of the air-drop equipment are not found for a long time.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to solve the problem of personnel operating the power supply system before and after air-drop.
(II) technical scheme
In order to solve the above technical problem, the present invention provides a single cell based air-drop signal activation system, including:
the system comprises a double-pole switch mode control switch K1, an air-drop safety switch K2, a power main switch K3, a relay J1, a relay J2 and a control unit ECU;
the double-pole switch mode control switch K1 is a double-pole two-position switch, is arranged on an equipment panel, is connected with the control unit ECU, is divided into a daily state and an air-drop state, and is used for switching the daily mode and the air-drop mode; one path of positive power is connected to the relay J2 in parallel at the output end of the power main switch K3, so that the influence of the relay J1 controlled by the air-drop safety switch K2 can be shielded under the condition that the power main switch K3 is closed; the airdrop safety switch K2 is arranged outside the vehicle, is automatically activated when being taken out of the cabin, is provided with two contacts of normally closed contact and normally open contact, and after airdrop, the pin of the airdrop safety switch K2 is pulled out to realize the opening of the normally closed switch and the closing of the normally open switch, thereby realizing the switching of a power supply and being used as a mark bit for delayed electrification; the power supply main switch K3 is arranged on a panel of the vehicle, is connected with the relay J2, the relay J1 and the control unit ECU, and is used for shielding the state of an air-drop switch after the vehicle is grounded; the relay J1 is used as an air-drop power supply activation relay, when a pin connected with the K2 and the K2 is pulled out, a normally open switch is closed, and the ECU is electrified; the control unit ECU is used for acquiring the switch position of K1, acquiring the timing starting signal of K2 and completing the power distribution task of the communication load.
Preferably, the system further comprises an air-drop mode indicator lamp K for lighting the control system in the presence of power when the auxiliary power grid switch K1 is in an air-drop mode.
Preferably, the blinking period of the air-drop mode indicator light K is 2Hz to prompt a person to turn off the air-drop mode in time.
Preferably, the contacts of the relay J1 and the relay J2 are also connected with a storage battery, and the negative electrode of the storage battery is connected with a switch K1.
Preferably, the load is a GPS similar positioning device, and positioning signal generators in different wave bands can be replaced according to local conditions.
The invention also provides a working method of the system, which comprises the following steps:
when the daily mode of the auxiliary power supply grid-connected switch K1 is true, the power supply system is in a single wire system, the J2 is switched on after the main power supply switch K3 is closed, the influence of the air-drop safety switch K2 on the system is shielded, at the moment, after the control unit ECU is electrified, the daily mode signal of the auxiliary power supply grid-connected switch K1 is collected to be true, and the positioning equipment is subjected to default power distribution without time delay;
when the air-drop mode of the auxiliary power supply grid-connected switch K1 is true, a power supply system is a double-wire system, a main power supply switch K3 is disconnected, a pin of K2 is inserted, the ground of a J1 control loop is disconnected, an air-drop signal system is powered off and is in a preparation mode, no power consumption load is connected at the moment, air-drop is waited, when the pin of K2 is released, the ground of a J1 control loop is connected, a control unit ECU is powered on, the control unit ECU enters an air-drop power-on mode after detecting that the air-drop mode of K1 is true, the control unit ECU starts to monitor a normally closed switch signal of K2, the pin of K2 is released, the control unit ECU starts 200 seconds for timing, waits for landing, and two paths of loads are connected; at the moment, the control unit ECU activates and switches on the countdown logic, and the two paths of loads are closed after 1 hour.
Preferably, when the K1 is in the air-drop mode, the air-drop mode indicator lamp K is turned on, the flashing period is 2Hz, personnel is prompted to timely turn off the air-drop mode, and the two paths of loads are converted to be controlled by the power main switch K3.
(III) advantageous effects
The invention introduces the relay J1 power-on loop controlled by the air-drop safety switch K2, and can realize automatic acquisition and connection of signals and power supply in an air-drop state; a mode switch K1 is introduced to realize the switching between a double-wire system ground and a single-wire system ground and provide mode acquisition for a control unit ECU; the double-control air-drop timing logic based on the mode switch K1 and the air-drop safety switch K2 is designed, and the wrong judgment that the ECU controls the safety switch K2 to be pulled out and the air-drop is grounded is avoided. The arrangement of the relay J2 can effectively ensure that the air-drop signal activation system is not influenced by the air-drop safety switch K2 under the condition that the chassis is powered on; the scheme is realized based on a starting battery in the air-drop device, no additional storage battery is added, the power consumption of the whole working time is less than 5Ah, and the weight of the air-drop device has obvious advantages.
Drawings
Fig. 1 is a circuit schematic diagram of a single cell air-drop signal activation system of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
As shown in fig. 1, the invention mainly comprises a double-pole switch mode control switch K1, an air-drop safety switch K2, a main power switch K3, a relay J1, a relay J2, a control unit ECU and an air-drop mode indicator lamp K;
a double-pole switch mode control switch K1 (on the panel, used for switching between a daily mode and an air-drop mode), an air-drop safety switch K2 (outside the equipment, automatically activated when the equipment is air-dropped out of a cabin), and a power supply main switch K3 (an original equipment panel and a route, a relay J2, used for shielding the state of the air-drop switch after falling to the ground, so that the operation of personnel is convenient); the relay J1 activates a relay by an air-drop power supply, and when the pin of the K2 is pulled out, a normally open switch is closed, so that the ECU can be electrified; the control unit ECU provides the power distribution tasks of acquiring the switch position of K1, the timing start signal of K2, the 200 second timing and the load (positioning device). The detailed description is as follows:
an air-drop safety switch K2 is added outside the vehicle and is provided with a normally closed contact and a normally open contact, after air-drop, a pin of the safety switch is pulled out, so that the normally closed switch can be opened, the normally open switch can be closed, and a marker bit for switching a power supply and electrifying in a delayed mode can be realized.
The auxiliary power supply grid-connected switch K1 arranged at the position of the instrument panel of the air-drop equipment is a double-pole two-position switch which is divided into a daily state and an air-drop state, and can realize the switching between the air-drop mode and the daily mode; at the output end of the power main switch K3, a positive power supply is connected in parallel to the relay J2, so that the influence of the relay J1 controlled by the air-drop safety switch K2 can be shielded under the condition that the power main switch K3 is closed.
And the airdrop mode indicator lamp K is arranged, and when the auxiliary power supply grid-connected switch K1 is in an airdrop mode, the control system is lightened under the condition that a power supply exists. The flashing period is 2Hz, personnel are prompted to close the air-drop mode in time, and the influence of the double-wire system equipment on the storage battery is avoided.
The main working modes of the airdrop signal activation system include:
1) when the daily mode of the auxiliary power supply grid-connected switch K1 is real, the power supply system is a single line system, the main power switch K3 is closed, then J2 is switched on, the influence of the air-drop safety switch K2 on the system is shielded (the switch is inserted or not inserted, the use of air-drop equipment is not influenced, the air-drop safety switch is mainly used for debugging in stages such as equipment packaging and the like), at the moment, after the control unit ECU is electrified, the daily mode signal of the auxiliary power supply grid-connected switch K1 is collected to be real, the power distribution is defaulted to positioning equipment, and the.
When the air-drop signal activation system is in a single wire system, the system is powered off after the main power switch K3 is disconnected, and the system is in a normal use state.
2) The air drop mode of the auxiliary power supply grid-connected switch K1 is true, and the power supply system is a two-wire system. When the power main switch K3 is turned off, the pin of K2 is inserted, the ground of the J1 control loop is disconnected, the air-drop signal system is powered off, and the air-drop signal system is in a preparation mode, and no power consumption load is connected at the moment, so that long-time storage of equipment can be ensured, and air-drop waiting can be realized. When the pin of K2 is disengaged, the ground of the J1 control circuit is connected, and the control unit ECU is electrified. After detecting that the air-drop mode of K1 is true, the control unit ECU enters an air-drop power-on mode, starts to monitor a normally closed switch signal of K2, releases the pin K2, starts to count for 200 seconds, and waits for the air-drop device to fall to the ground. After timing is finished, the positioning equipment is switched on; at the moment, the control unit ECU activates and switches on countdown logic, and two paths of loads of the positioning equipment are closed after 1 hour, so that the power supply of the air-drop equipment is protected, and overdischarge is avoided.
3) The method aims to avoid that the air-drop signal is falsely triggered to activate the system logic when the equipment is in a double-wire system working condition for a long time after air-drop and is electrified again and the pin is not inserted. Set up air-drop mode pilot lamp K one, when K1 was in the air-drop mode, control system lighted under the condition that has the power, and the scintillation cycle is 2Hz, and suggestion personnel in time close the air-drop mode, convert two way loads into and be controlled by power master switch K3.
It can be seen that the invention introduces the relay J1 power-on loop controlled by the air-drop safety switch K2, which can realize the automatic acquisition and connection of signals and power supply under the air-drop state; a mode switch K1 is introduced to realize the switching between a double-wire system ground and a single-wire system ground and provide mode acquisition for a control unit ECU; the double-control air-drop timing logic based on the mode switch K1 and the air-drop safety switch K2 is designed, and the wrong judgment that the ECU controls the safety switch K2 to be pulled out and the air-drop is grounded is avoided. The relay J2 can effectively ensure that the air-drop signal activation system is not influenced by the air-drop safety switch K2 under the condition that the air-drop equipment is powered on; the scheme is realized based on the starting battery of the air-drop equipment, no additional storage battery is added, the power consumption of the whole working time is less than 5Ah, and the weight of the air-drop equipment has obvious advantages. Therefore, the air-drop signal activation system solves the problem of operation of personnel on the power supply system before and after air-drop, and the problems of service life and charging and discharging of the air-drop power supply system.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A cell-based air-drop signal activation system, comprising:
the system comprises a double-pole switch mode control switch K1, an air-drop safety switch K2, a power main switch K3, a relay J1, a relay J2 and a control unit ECU;
the double-pole switch mode control switch K1 is a double-pole two-position switch, is arranged on a panel of the vehicle, is connected with the control unit ECU, is divided into a daily state and an air-drop state, and is used for switching the daily mode and the air-drop mode; one path of positive power is connected to the relay J2 in parallel at the output end of the power main switch K3, so that the influence of the relay J1 controlled by the air-drop safety switch K2 can be shielded under the condition that the power main switch K3 is closed; the airdrop safety switch K2 is arranged outside the vehicle, is automatically activated when being taken out of the cabin, is provided with two contacts of normally closed contact and normally open contact, and after airdrop, the pin of the airdrop safety switch K2 is pulled out to realize the opening of the normally closed switch and the closing of the normally open switch, thereby realizing the switching of a power supply and being used as a mark bit for delayed electrification; the power supply main switch K3 is arranged on a panel of the vehicle, is connected with one path in parallel, is connected with the relay J2, is connected with the relay J1 and the control unit ECU, and is used for shielding the state of an air-drop switch after falling to the ground; the relay J1 is used as an air-drop power supply activation relay, when a pin connected with the K2 and the K2 is pulled out, a normally open switch is closed, and the ECU is electrified; the control unit ECU is used for acquiring the switch position of K1, acquiring the timing starting signal of K2 and completing the power distribution task of two paths of loads.
2. The system of claim 1, further comprising an air-drop mode indicator light K for controlling the system to light up in the presence of power when the auxiliary power grid connection switch K1 is in an air-drop mode.
3. The system of claim 2, wherein the airdrop mode indicator light K flashes for a period of 2Hz to prompt the occupant to turn off the airdrop mode in time.
4. The system as claimed in claim 1, wherein the contacts of the relay J1 and the relay J2 are also connected with a storage battery, and the negative pole of the storage battery is connected with a switch K1.
5. The system of claim 1, wherein the two-way load is a beidou and a captain terminal.
6. A method of operating a system according to any one of claims 1 to 5, comprising the steps of:
when the daily mode of the auxiliary power supply grid-connected switch K1 is true, the power supply system is in a single wire system, the J2 is switched on after the main power supply switch K3 is closed, the influence of the air-drop safety switch K2 on the system is shielded, at the moment, after the control unit ECU is electrified, the daily mode signal of the auxiliary power supply grid-connected switch K1 is collected to be true, and the Beidou and the conductor terminal are subjected to default power distribution without time delay;
when the air-drop mode of the auxiliary power supply grid-connected switch K1 is true, the power supply system is a double-wire system, the main power supply switch K3 is disconnected, the pin of K2 is inserted, the ground wire of a J1 control loop is disconnected, an air-drop signal system is powered off and is in a preparation mode, no power consumption load is connected at the moment, the air-drop is waited, when the pin of K2 is released, the ground wire of a J1 control loop is connected, the control unit ECU is powered on, the control unit ECU enters the air-drop power-on mode after detecting that the air-drop mode of K1 is true, the control unit ECU starts to monitor the normally closed switch signal of K2, the pin of K2 is released, the control unit ECU starts 200 seconds for timing, waits for landing, and after the timing; at the moment, the control unit ECU activates and switches on the countdown logic, and the two paths of loads are closed after 1 hour.
7. The method of claim 6, wherein when K1 is in the air-drop mode, an air-drop mode indicator light K is on, and the flashing period is 2Hz, so as to prompt the passenger to turn off the air-drop mode in time, and the two-way load is switched to be controlled by a main power switch K3.
CN201811214542.3A 2018-10-18 2018-10-18 Air-drop signal activation system based on single battery and working method thereof Active CN109301924B (en)

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JP2012062768A (en) * 2010-09-14 2012-03-29 Denso Corp Engine stop/start control device
CN106843281A (en) * 2017-03-09 2017-06-13 北京航天控制仪器研究所 A kind of intelligence accurately drop from the air aerial delivery system
CN206432730U (en) * 2016-12-02 2017-08-22 武汉航空仪表有限责任公司 A kind of power switch circuit of cyclelog

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
CN201528221U (en) * 2009-09-10 2010-07-14 安徽方兴科技股份有限公司 Three-path power automatic-switching circuit for improving service life of EPS system
JP2012062768A (en) * 2010-09-14 2012-03-29 Denso Corp Engine stop/start control device
CN206432730U (en) * 2016-12-02 2017-08-22 武汉航空仪表有限责任公司 A kind of power switch circuit of cyclelog
CN106843281A (en) * 2017-03-09 2017-06-13 北京航天控制仪器研究所 A kind of intelligence accurately drop from the air aerial delivery system

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