CN106314804A - Method for precisely controlling time delay of parachute opening device based on different temperatures - Google Patents
Method for precisely controlling time delay of parachute opening device based on different temperatures Download PDFInfo
- Publication number
- CN106314804A CN106314804A CN201610785847.4A CN201610785847A CN106314804A CN 106314804 A CN106314804 A CN 106314804A CN 201610785847 A CN201610785847 A CN 201610785847A CN 106314804 A CN106314804 A CN 106314804A
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- Prior art keywords
- opening device
- time
- parachute opening
- self
- inspection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D25/00—Emergency apparatus or devices, not otherwise provided for
- B64D25/08—Ejecting or escaping means
- B64D25/10—Ejector seats
Abstract
A method for precisely controlling the time delay of a parachute opening device based on different temperatures, comprises the following steps: (1) after the starting of the ejection, high pressure fuel gas enters the thermal battery component of a parachute opening device from a seat control system, the thermal battery is activated, and the parachute opening device is powered; (2) the initialization of the parachute opening device system is conducted, the timer begins timekeeping, the power-on self-test of parachute opening device is conducted, and the preset delay time or artificially preset delay time is obtained from external memory according to the result of the power-on self-test; (3) the ambient temperature of the parachute opening device is obtained through a temperature sensor, the activation time of thermal battery is determined; (4) after the height of parachute opening device is determined and the height determining time is recorded, the real output delay time of the parachute opening device can be obtained by the following formula: real output delay time = preset delay time-thermal battery activation time-program running time-program running time; (5) executing the time delay action of the parachute opening device, and an ignition command is outputted. The accurate time delay output of the parachute opening device can be achieved at 55-70 DEG C, and the safety life saving performance of an ejection seat is improved at different temperatures.
Description
Technical field
The present invention relates to a kind of based on the method accurately controlling parachute opening device time delay under different temperatures, be particularly suited for based on bullet
Penetrating in the parachute opening device system of seat, the research and development for parachute opening device provide new technical thought and solution route.
Background technology
Parachute opening device is as the standby system of ejection life-saving system, it is desirable to when master control program controller lost efficacy, the most defeated
Go out delay time, to ensure that system is normally launched.It is fixing sharp that parachute opening device time delay at present uses default delay time to deduct thermal cell
Live time, because under thermal cell different temperatures, activationary time is variant, cause the output delay time error of parachute opening device relatively big (error ±
100ms), ejection escape performance is affected.
Summary of the invention
The technical problem to be solved in the present invention is, for existing parachute opening device delay technique above shortcomings, it is provided that one
Plant based on the method accurately controlling parachute opening device time delay under different temperatures, it is achieved-55 DEG C～70 DEG C of parachute opening device accurate delays outputs, carry
High ejector seat safe life-saving performance at different temperatures.
The present invention solves that above-mentioned technical problem be the technical scheme is that
A kind of based on the method accurately controlling parachute opening device time delay under different temperatures, specifically include following steps:
(1), after launching startup, the high-pressure gas from seat control system enters the thermal cell assembly of parachute opening device, thermal cell
Activating, parachute opening device powers on；
(2), after parachute opening device powers on, parachute opening device system initialization, intervalometer starts timing, and parachute opening device power-on self-test, according to upper
Electricity self-detection result obtains from external memory storage and presets delay time or be manually set default delay time；
(3) obtain the ambient temperature residing for parachute opening device by temperature sensor, determine Activation Time of Thermal Battery；
(4), after determining that the height residing for parachute opening device record highly determine the time by height sensor, parachute opening device is obtained
True output delay time=preset delay time-Activation Time of Thermal Battery (different temperatures activationary time is variant)-program fortune
During row, m-height determines the time；
(5) the true output delay time of parachute opening device obtained according to step (4), performs parachute opening device deferred action, the most defeated
Go out firing command.
By such scheme, when in described step (2), power-on self-test includes the self-inspection of initial signal ROM, intervalometer self-inspection, time delay
Between preset value self-inspection, the self-inspections simultaneously of three road static pressure, when the self-inspection of initial signal ROM is normal, carry out next step intervalometer self-inspection,
Otherwise record self-inspection frequency of abnormity and abnormality, and again start power up self-inspection flow process；When intervalometer self-inspection, delay time are pre-
If self-inspections are all normal while of value self-inspection, three road static pressure, obtain from external memory storage and preset delay time；When intervalometer self-inspection is different
Often or delay time preset value self-inspection is abnormal or during three road static pressure self-inspection exception simultaneously, sets default delay time as 3.15s.
By such scheme, described step (3) Activation Time of Thermal Battery determines that mode is: according to the performance of selected thermal cell,
The activationary time interval to different temperatures divides, and obtains the Activation Time of Thermal Battery that corresponding temperature is interval.
By such scheme, described step (4) the Program operation time includes System Initialization time, self-inspection time, self-inspection
Terminate before execution time delay the time.
Compared with prior art, beneficial effects of the present invention :-55 DEG C～70 DEG C of parachute opening devices can be realized by this control method
Accurate delay (error ± 20ms), as backup life saving system, parachute opening device ensures to realize accurate delay output under various circumstances,
Improve ejector seat safe life-saving performance at different temperatures, strengthen the operation confidence of pilot.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention parachute opening device hardware positionality schematic diagram；
Fig. 2 is that the embodiment of the present invention is based on accurately controlling parachute opening device delays time to control flow chart under different temperatures.
Detailed description of the invention
With embodiment, technical solution of the present invention is described in detail below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, in the embodiment of the present invention, parachute opening device includes thermal cell assembly, sensor cluster, parachute opening device also with
External memory storage connects, and the high-pressure gas from seat control system activates mechanism by thermal cell and enters the thermal cell of parachute opening device
Assembly, thermal cell activates, and sensor cluster mainly includes temperature sensor and height sensor, and temperature sensor is opened for acquisition
Ambient temperature residing for umbrella device, height sensor is for determining the height residing for parachute opening device, and external memory storage is used for presetting time delay
Time.
With reference to shown in Fig. 2, based on the method accurately controlling parachute opening device time delay under different temperatures in the embodiment of the present invention, specifically
Comprise the steps:
(1), after launching startup, the high-pressure gas from seat control system enters the thermal cell assembly of parachute opening device, thermal cell
Activating, parachute opening device powers on；
(2), after parachute opening device powers on, parachute opening device system initialization, intervalometer starts timing, parachute opening device power-on self-test, powers on certainly
Inspection includes the self-inspection of initial signal ROM, intervalometer self-inspection, delay time preset value self-inspection, (height sensor is corresponding for three road static pressure
Three tunnels) self-inspection simultaneously, when the self-inspection of initial signal ROM is normal, carry out next step intervalometer self-inspection, otherwise record self-inspection is abnormal
Number of times and abnormality, and again start power up self-inspection flow process；When intervalometer self-inspection, delay time preset value self-inspection, three roads are quiet
When pressure self-inspection simultaneously is all normal, obtains from external memory storage and preset delay time；When intervalometer self-inspection exception or delay time are pre-
If when value self-inspection exception or three road static pressure self-inspection exception simultaneously, setting and preset delay time as 3.15s；
(3) obtaining the ambient temperature residing for parachute opening device by temperature sensor, determine Activation Time of Thermal Battery, thermal cell swashs
Live time determines that mode is: according to the performance of selected thermal cell, and the activationary time interval to different temperatures divides, and it is right to obtain
Answer the Activation Time of Thermal Battery of temperature range；
(4), after determining that the height residing for parachute opening device record highly determine the time by height sensor, parachute opening device is obtained
True output delay time=preset delay time-Activation Time of Thermal Battery (different temperatures activationary time is variant)-program fortune
During row, m-height determines the time, and wherein, program runtime includes System Initialization time, self-inspection time, and self-inspection terminates to holding
Time before line delay；
(5) the true output delay time of parachute opening device obtained according to step (4), performs parachute opening device deferred action, the most defeated
Go out firing command.
Obviously, above-described embodiment is only for clearly demonstrating example of the present invention, and not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, what spirit under this invention was extended out is aobvious and easy
The change seen or variation still in protection scope of the present invention among.
Claims (4)
1. one kind based on the method accurately controlling parachute opening device time delay under different temperatures, it is characterised in that specifically include following steps:
(1) after launching startup, the high-pressure gas from seat control system enters the thermal cell assembly of parachute opening device, and thermal cell swashs
Living, parachute opening device powers on；
(2), after parachute opening device powers on, parachute opening device system initialization, intervalometer starts timing, and parachute opening device power-on self-test, according to powering on certainly
Inspection result obtains from external memory storage and presets delay time or be manually set default delay time；
(3) obtain the ambient temperature residing for parachute opening device by temperature sensor, determine Activation Time of Thermal Battery；
(4), after determining that the height residing for parachute opening device record highly determine the time by height sensor, parachute opening device is obtained true
Output delay time=default delay time-Activation Time of Thermal Battery-program runtime-highly determine the time；
(5) the true output delay time of parachute opening device obtained according to step (4), performs parachute opening device deferred action, last output point
Fire instruction.
The most according to claim 1 based on the method accurately controlling parachute opening device time delay under different temperatures, it is characterised in that institute
State power-on self-test in step (2) and include the self-inspection of initial signal ROM, intervalometer self-inspection, delay time preset value self-inspection, three road static pressure
Self-inspection simultaneously, when the self-inspection of initial signal ROM is normal, carries out next step intervalometer self-inspection, otherwise record self-inspection frequency of abnormity
And abnormality, and again start power up self-inspection flow process；When intervalometer self-inspection, delay time preset value self-inspection, three road static pressure with
When Shi Zijian is all normal, obtains from external memory storage and preset delay time；When intervalometer self-inspection exception or delay time preset value
When self-inspection exception or three road static pressure self-inspection exception simultaneously, set and preset delay time as 3.15s.
The most according to claim 1 based on the method accurately controlling parachute opening device time delay under different temperatures, it is characterised in that institute
State step (3) Activation Time of Thermal Battery and determine that mode is: according to the performance of selected thermal cell, during to the activation that different temperatures is interval
Between divide, obtain the Activation Time of Thermal Battery that corresponding temperature is interval.
The most according to claim 1 based on the method accurately controlling parachute opening device time delay under different temperatures, it is characterised in that institute
Stating step (4) Program to run the time and include System Initialization time, self-inspection time, self-inspection terminates to performing before time delay the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785847.4A CN106314804B (en) | 2016-08-31 | 2016-08-31 | A method of it is delayed based on parachute opening device is accurately controlled under different temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610785847.4A CN106314804B (en) | 2016-08-31 | 2016-08-31 | A method of it is delayed based on parachute opening device is accurately controlled under different temperatures |
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| CN106314804A true CN106314804A (en) | 2017-01-11 |
| CN106314804B CN106314804B (en) | 2018-09-11 |
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| CN201610785847.4A Active CN106314804B (en) | 2016-08-31 | 2016-08-31 | A method of it is delayed based on parachute opening device is accurately controlled under different temperatures |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645957A (en) * | 2019-10-23 | 2020-01-03 | 航宇救生装备有限公司 | Q fixed point representation method of height sensor of umbrella opener |
| CN111123886A (en) * | 2019-12-06 | 2020-05-08 | 武汉航空仪表有限责任公司 | Comprehensive testing device and testing method for program controller |
| CN112208774A (en) * | 2020-10-15 | 2021-01-12 | 航宇救生装备有限公司 | Electronic parachute opener for dual-mode dual-redundancy emergency ejection lifesaving |
| CN112249345A (en) * | 2020-10-15 | 2021-01-22 | 航宇救生装备有限公司 | Device and method for indicating state of chair-mounted electronic umbrella opener |
| CN112817222A (en) * | 2020-12-25 | 2021-05-18 | 武汉航空仪表有限责任公司 | Device and method for detecting action time of automatic unlocking device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645957A (en) * | 2019-10-23 | 2020-01-03 | 航宇救生装备有限公司 | Q fixed point representation method of height sensor of umbrella opener |
| CN110645957B (en) * | 2019-10-23 | 2021-10-15 | 航宇救生装备有限公司 | Q fixed point representation method of height sensor of umbrella opener |
| CN111123886A (en) * | 2019-12-06 | 2020-05-08 | 武汉航空仪表有限责任公司 | Comprehensive testing device and testing method for program controller |
| CN112208774A (en) * | 2020-10-15 | 2021-01-12 | 航宇救生装备有限公司 | Electronic parachute opener for dual-mode dual-redundancy emergency ejection lifesaving |
| CN112249345A (en) * | 2020-10-15 | 2021-01-22 | 航宇救生装备有限公司 | Device and method for indicating state of chair-mounted electronic umbrella opener |
| CN112249345B (en) * | 2020-10-15 | 2024-04-16 | 航宇救生装备有限公司 | Chair-mounted electronic umbrella opener state indicating device and method |
| CN112817222A (en) * | 2020-12-25 | 2021-05-18 | 武汉航空仪表有限责任公司 | Device and method for detecting action time of automatic unlocking device |
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|---|---|
| CN106314804B (en) | 2018-09-11 |
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