CN106314804B - A method of it is delayed based on parachute opening device is accurately controlled under different temperatures - Google Patents
A method of it is delayed based on parachute opening device is accurately controlled under different temperatures Download PDFInfo
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- CN106314804B CN106314804B CN201610785847.4A CN201610785847A CN106314804B CN 106314804 B CN106314804 B CN 106314804B CN 201610785847 A CN201610785847 A CN 201610785847A CN 106314804 B CN106314804 B CN 106314804B
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- opening device
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003111 delayed effect Effects 0.000 title claims description 4
- 230000004913 activation Effects 0.000 claims abstract description 11
- 210000003850 cellular structure Anatomy 0.000 claims abstract description 5
- 210000004027 cell Anatomy 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000005856 abnormality Effects 0.000 claims description 3
- 230000020411 cell activation Effects 0.000 abstract description 5
- 238000010304 firing Methods 0.000 abstract description 3
- 230000001934 delay Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT 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
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A method of based on parachute opening device delay is accurately controlled under different temperatures, include the following steps：(1) after ejection starts, the high-pressure gas from seat control system enters the thermal cell component of parachute opening device, thermal cell activation, and parachute opening device powers on；(2) parachute opening device system initialization, timer start timing, and parachute opening device power-on self-test obtains to preset delay time or be manually set and presets delay time according to power-on self-test result from external memory；(3) environment temperature residing for parachute opening device is obtained by temperature sensor, determines Activation Time of Thermal Battery；(4) it after determining the height residing for parachute opening device and recording the height determining time, obtains the true output delay time of parachute opening device=default delay time Activation Time of Thermal Battery program runtime height and determines the time；(5) parachute opening device deferred action is executed, firing command is exported.The present invention realizes 55 DEG C~70 DEG C parachute opening device accurate delay outputs, improves the safe life-saving performance of ejector seat at different temperatures.
Description
Technical field
The present invention relates to a kind of based on the method for accurately controlling parachute opening device delay under different temperatures, is particularly suitable for being based on bullet
It penetrates in the parachute opening device system of seat, new technical thought and solution route is provided for the research and development of parachute opening device.
Background technology
Standby system of the parachute opening device as ejection life-saving system, it is desirable that reliable accurate defeated when master control program controller fails
Go out delay time, to ensure that system is normally launched.Parachute opening device delay at present is subtracted thermal cell and fixed using default delay time to swash
Live time, because activationary time is variant under thermal cell different temperatures, cause the output delay time error of parachute opening device it is larger (error ±
100ms), ejection escape performance is influenced.
Invention content
The technical problem to be solved by the present invention is to for existing parachute opening device delay technique above shortcomings, provide one
Kind is realized -55 DEG C~70 DEG C parachute opening device accurate delays outputs, is carried based on the method for accurately controlling parachute opening device delay under different temperatures
The safe life-saving performance of high ejector seat at different temperatures.
Used technical solution is the present invention to solve above-mentioned technical problem：
A method of based on parachute opening device delay is accurately controlled under different temperatures, specifically comprise the following steps：
(1) after ejection starts, the high-pressure gas from seat control system enters the thermal cell component of parachute opening device, thermal cell
Activation, parachute opening device power on；
(2) after the power is turned on, parachute opening device system initialization, timer starts timing, parachute opening device power-on self-test, according to upper to parachute opening device
Electric self-detection result, which obtains to preset delay time or be manually set from external memory, presets delay time；
(3) environment temperature residing for parachute opening device is obtained by temperature sensor, determines Activation Time of Thermal Battery；
(4) by height sensor determine the height residing for parachute opening device and record height determine the time after, obtain parachute opening device
True output delay time=default delay time-Activation Time of Thermal Battery (different temperatures activationary time is variant)-program fortune
M- height determines the time when row；
(5) the true output delay time of parachute opening device obtained according to step (4) executes parachute opening device deferred action, last defeated
Go out firing command.
By said program, when power-on self-test includes initial signal ROM self-tests, timer self-test, delay in the step (2)
Between preset value self-test, three road static pressure simultaneously self-test carry out the timer self-test of next step when initial signal ROM self-tests are normal,
Otherwise self-test frequency of abnormity and abnormality are recorded, and starts power up self-test flow again；When timer self-test, delay time are pre-
If be worth self-test, three road static pressure while normal self-test, obtained from external memory and preset delay time；When timer self-test is different
When normal or delay time preset value self-test exception or three road static pressure while self-test exception, default delay time is set as 3.15s.
By said program, step (3) the Activation Time of Thermal Battery method of determination is：According to the performance of selected thermal cell,
The activationary time in different temperatures section is divided, the Activation Time of Thermal Battery in corresponding temperature section is obtained.
By said program, step (4) the Program run time includes System Initialization time, self-test time, self-test
Terminate to execution before being delayed the time.
Compared with prior art, beneficial effects of the present invention：- 55 DEG C~70 DEG C parachute opening devices can be realized by the control method
Accurate delay (error ± 20ms), as backup life saving system, parachute opening device ensures to realize accurate delay output under various circumstances,
The safe life-saving performance of ejector seat at different temperatures is improved, the operation confidence of pilot is enhanced.
Description of the drawings
Fig. 1 is parachute opening device hardware relational structure schematic diagram of the embodiment of the present invention；
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.
Specific implementation mode
Technical solution of the present invention is described in detail with reference to the accompanying drawings and examples.
Shown in referring to Fig.1, parachute opening device includes thermal cell component in the embodiment of the present invention, sensor module, parachute opening device also with
External memory connects, and the high-pressure gas from seat control system enters the thermal cell of parachute opening device by thermal cell activation mechanism
Component, thermal cell activation, sensor module include mainly temperature sensor and height sensor, and temperature sensor is opened for obtaining
Environment temperature residing for umbrella device, height sensor are used to determine the height residing for parachute opening device, and external memory is for default delay
Time.
With reference to shown in Fig. 2, based on the method for accurately controlling parachute opening device delay under different temperatures in the embodiment of the present invention, specifically
Include the following steps：
(1) after ejection starts, the high-pressure gas from seat control system enters the thermal cell component of parachute opening device, thermal cell
Activation, parachute opening device power on；
(2) after the power is turned on, parachute opening device system initialization, timer starts timing to parachute opening device, and parachute opening device power-on self-test powers on certainly
Inspection includes initial signal ROM self-tests, timer self-test, the self-test of delay time preset value, (height sensor is corresponding for three road static pressure
Three tunnels) at the same self-test carry out the timer self-test of next step when initial signal ROM self-tests are normal, it is abnormal otherwise to record self-test
Number and abnormality, and self-test flow is started power up again；When timer self-test, the self-test of delay time preset value, three roads are quiet
When pressure self-test simultaneously is normal, is obtained from external memory and preset delay time；When timer self-test exception or delay time are pre-
If be worth abnormal self-test or three road static pressure while self-test exception, default delay time is set as 3.15s；
(3) environment temperature residing for parachute opening device is obtained by temperature sensor, determines that Activation Time of Thermal Battery, thermal cell swash
Live time method of determination is：According to the performance of selected thermal cell, the activationary time in different temperatures section is divided, is obtained pair
Answer the Activation Time of Thermal Battery of temperature range；
(4) by height sensor determine the height residing for parachute opening device and record height determine the time after, obtain parachute opening device
True output delay time=default delay time-Activation Time of Thermal Battery (different temperatures activationary time is variant)-program fortune
M- height determines the time when row, wherein program runtime includes System Initialization time, self-test time, and self-test terminates to holding
Time before line delay；
(5) the true output delay time of parachute opening device obtained according to step (4) executes parachute opening device deferred action, last defeated
Go out firing command.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the art, spirit under this invention is extended out aobvious and easy
The variation or variation seen are still in the protection scope of this invention.
Claims (3)
1. a kind of based on the method for accurately controlling parachute opening device delay under different temperatures, which is characterized in that specifically comprise the following steps：
（1）After ejection starts, the high-pressure gas from seat control system enters the thermal cell component of parachute opening device, and thermal cell swashs
Living, parachute opening device powers on；
（2）After the power is turned on, parachute opening device system initialization, timer starts timing to parachute opening device, parachute opening device power-on self-test, according to power on from
Result is examined to obtain default delay time from external memory or default delay time is manually set；Power-on self-test includes initial signal
ROM self-tests, timer self-test, the self-test of delay time preset value, the self-test simultaneously of three road static pressure, when initial signal ROM self-tests are normal
When, the timer self-test of next step is carried out, otherwise records self-test frequency of abnormity and abnormality, and start power up self-test stream again
Journey；When timer self-test, the self-test of delay time preset value, the self-test simultaneously of three road static pressure are normal, obtained from external memory
Default delay time；When timer self-test exception or the self-test of delay time preset value is abnormal or the self-test simultaneously of three road static pressure is abnormal
When, default delay time is set as 3.15s；
（3）The environment temperature residing for parachute opening device is obtained by temperature sensor, determines Activation Time of Thermal Battery；
（4）By height sensor determine the height residing for parachute opening device and record height determine the time after, obtain parachute opening device it is true
Output delay time=default delay time-Activation Time of Thermal Battery-program runtime-height determines the time；
（5）According to step（4）The obtained true output delay time of parachute opening device executes parachute opening device deferred action, last output point
Fire instruction.
2. according to claim 1 based on the method for accurately controlling parachute opening device delay under different temperatures, which is characterized in that institute
State step（3）Activation Time of Thermal Battery method of determination is：According to the performance of selected thermal cell, when to the activation in different temperatures section
Between divided, obtain the Activation Time of Thermal Battery in corresponding temperature section.
3. according to claim 1 based on the method for accurately controlling parachute opening device delay under different temperatures, which is characterized in that institute
State step（4）Program run time includes System Initialization time, self-test time, and self-test terminates to execution before being delayed 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 |
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|---|---|---|---|
| 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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| CN106314804B true CN106314804B (en) | 2018-09-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN112817222B (en) * | 2020-12-25 | 2022-06-17 | 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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| CN204088476U (en) * | 2014-09-25 | 2015-01-07 | 航宇救生装备有限公司 | A kind of needle stimulus live-in dividing plate igniter for thermal cell |
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| CN105513165A (en) * | 2015-12-30 | 2016-04-20 | 陕西烽火电子股份有限公司 | Onboard catapulting floating emergency positioning device |
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| GB1315249A (en) * | 1971-11-16 | 1973-05-02 | Fairchild Industries | Vehicle seat restraining system |
| US4911382A (en) * | 1989-01-17 | 1990-03-27 | Grumman Aerospace Corporation | Safe electro ballistic escape sequencing system |
| CN202817104U (en) * | 2012-09-19 | 2013-03-20 | 航宇救生装备有限公司 | Thermal battery activator |
| CN203704802U (en) * | 2013-10-12 | 2014-07-09 | 江西新余国科科技有限公司 | Delay control device with accurate timing function |
| CN204088476U (en) * | 2014-09-25 | 2015-01-07 | 航宇救生装备有限公司 | A kind of needle stimulus live-in dividing plate igniter for thermal cell |
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