CN111470050B - Start-up structure and start-up method of position reporting device - Google Patents

Start-up structure and start-up method of position reporting device Download PDF

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CN111470050B
CN111470050B CN202010149746.4A CN202010149746A CN111470050B CN 111470050 B CN111470050 B CN 111470050B CN 202010149746 A CN202010149746 A CN 202010149746A CN 111470050 B CN111470050 B CN 111470050B
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reporting device
temperature
value
force
position reporting
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CN111470050A (en
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杨航
王倩
李洪烈
王哲
方芳
程春华
何凡
宋晓鸥
赵冬梅
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Naval Aeronautical University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D25/00Emergency apparatus or devices, not otherwise provided for
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D17/00Parachutes
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

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  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

本发明公开了报位装置开机结构和开机方法,其中开机结构,包括报位装置,还包括伞带操纵带、上连接带、上卡扣、下卡扣、下连接带、拔销和传感开关;传感开关安装于报位装置上端,外壳、内腔、三轴60°应变花,拔销的材料为磁导体,报位装置主控板卡位于内腔正下方的位置设置有磁感电路;报位装置内安装有至少三个气压高度传感器,本发明的开机结构和开机方法,可靠性高,降低了报位装置误开机的概率。

Figure 202010149746

The invention discloses a start-up structure and a start-up method of a position reporting device. The booting structure includes a position reporting device, an umbrella belt control belt, an upper connecting belt, an upper buckle, a lower buckle, a lower connecting belt, a pull-out pin and a sensor. switch; the sensor switch is installed on the upper end of the position reporting device, the shell, the inner cavity, and the three-axis 60° strain rosette, the material for pulling the pin is a magnetic conductor, and the position reporting device main control board is located directly below the inner cavity. circuit; at least three air pressure and altitude sensors are installed in the position reporting device, and the startup structure and startup method of the present invention have high reliability and reduce the probability of incorrect startup of the position reporting device.

Figure 202010149746

Description

Starting structure and starting method of position reporting device
Technical Field
The invention relates to the technical field of control of a position reporting device after a pilot is in danger on the sea, in particular to a starting structure and a starting method of the position reporting device.
Background
When a pilot is in danger in the air, the pilot hopes that a position reporting device carried by the pilot is started up for reporting the position at the first time. The conditions of starting the position reporting device in the prior art comprise overload, air pressure, temperature, parachute opening force and the like, and a novel practical patent (patent number: 201721666508.0, published: 2018.09.18) discloses a mechanical tension starting device of life-saving wearable equipment, which is started based on the parachute opening force, but the starting of the position reporting device in the prior art has the problem of low reliability, and the following problems exist in the above patents: (1) when the pilot normally moves in the cockpit, the pin is pulled or pulled by mistake, and when the ground crew maintains the equipment, the pin is pulled or pulled by mistake, so that the position reporting device is started by mistake; (2) after the pulling pin is used for a long time, the pulling force response range changes, if the pulling pin is reduced, the probability of the error starting of the position reporting device is increased, and if the pulling pin is increased, the pulling pin cannot be opened; (3) the surface of the pulling pin is corroded or oxidized after long-term use, the contact conductivity is poor, and the error start of the position reporting device can be caused.
Accordingly, the invention is particularly directed to.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a starting structure of a position reporting device, and based on the structure, the invention also provides a starting method of the position reporting device based on temperature and a starting method of the position reporting device based on parachute opening force.
The technical scheme of the invention is realized as follows:
a start-up structure of a position reporting device comprises the position reporting device, an umbrella band operating band, an upper connecting band, an upper buckle, a lower connecting band, a pull pin and a sensing switch;
the upper end of the upper connecting belt is fixedly connected with the umbrella belt operating belt, the upper end of the upper buckle is fixedly connected with the lower end of the upper connecting belt, the upper buckle and the lower buckle are clamped together, the clamping force of the upper buckle and the lower buckle is greater than the upper threshold value limit of the umbrella opening force, the upper end of the lower connecting belt is fixedly connected with the lower end of the lower buckle, and the upper end of the pull pin is fixedly connected with the lower end of the lower connecting belt;
the sensing switch is arranged at the upper end of the position reporting device and comprises a shell, an inner cavity and a three-axis 60-degree strain gage, the upper end of the shell extends downwards to form the inner cavity, the lower end of a pulling pin is inserted in the inner cavity, the force of inserting the pulling pin is greater than the lower threshold value limit of the parachute opening force and smaller than the upper threshold value limit of the parachute opening force, the bottom of the inner cavity is made of an elastic body made of a rubber material, strain gauges of the three-axis 60-degree strain gage are temperature sensing strain gauges which are respectively bonded on the left side, the right side and the bottom of the outer wall of the bottom of the inner cavity, the three temperature sensing strain gauges are electrically connected with a main control board card of the position reporting device, and the position reporting device acquires a force value and a temperature value measured by the temperature sensing strain gauges;
the pulling pin is made of a magnetic conductor, and a magnetic induction circuit is arranged at the position, right below the inner cavity, of the main control board card of the position reporting device; at least three air pressure height sensors are installed in the position reporting device and are electrically connected with a main control board card of the position reporting device, and the position reporting device acquires a height value measured by the air pressure height sensors.
The invention discloses a temperature-based bit reporting device starting method, which uses the bit reporting device starting structure provided by the invention, and comprises the following steps:
step 1: acquiring temperature values Tt1, Tt2 and Tt3 measured by the three temperature-sensitive strain gauges, and taking an average value Tt after eliminating abnormal values;
step 2: judging whether Tt is greater than a temperature limit value T0, if so, entering a step 3, otherwise, returning to the step 1;
and step 3: judging whether the count X is larger than a count limit value X0, if so, entering a step 6, otherwise, adding 1 to the X, and entering a step 4;
and 4, step 4: acquiring force values Nt1, Nt2 and Nt3 measured by three temperature sensing strain gauges, and calculating an average scalar value | Nt |;
and 5: judging whether the | Nt | is greater than 0, judging whether the | Nt | is less than a threshold lower limit | N0min | of the parachute opening force, if any one of the | Nt | and the | N0min | is greater than the threshold lower limit, entering the step 6, and if both are not greater than the threshold lower limit, returning to the step 1;
step 6: the position reporting device is started and reports the position.
Further, in step 2, height values Ht1, Ht2, Ht3 measured by the three barometric altitude sensors are obtained, an average value Ht is taken after abnormal values are removed, and T0 is T0 of the current Ht.
The invention discloses a position reporting device starting method based on parachute opening force, which uses the position reporting device starting structure provided by the invention, and comprises the following steps:
step 1: judging whether the pulling pin is pulled open or not, if so, entering a step 2, and if not, entering a step 8;
step 2: acquiring temperature values Tt1, Tt2 and Tt3 measured by the three temperature-sensitive strain gauges, and taking an average value Tt after eliminating abnormal values;
and step 3: judging whether Tt is greater than a temperature limit value T0, if so, entering a step 4, otherwise, entering a step 5;
and 4, step 4: starting the position reporting device and reporting the position;
and 5: judging whether the maximum value | Nmax | of the force when the pulling pin is not pulled out is larger than the lower limit | N0min | of the threshold value of the parachute opening force, if so, entering a step 6, and if not, entering a step 7;
step 6: marking the Nmax as a fault value, and returning to the step 1;
and 7: making | N0min | ═ Nmax |, and returning to step 1;
and 8: acquiring force values Nt1, Nt2 and Nt3 measured by three temperature sensing strain gauges, and calculating an average scalar value | Nt |;
and step 9: if the | Nt | is larger than the maximum value | Nmax | of the force when the pulling pin is not pulled out, the | Nmax | is made to be | Nt |, and the step 1 is returned; and if the | Nt | is smaller than the minimum | Nmin | of the force when the pulling pin is not pulled out, making the | Nmin | equal to the | Nt | and returning to the step 1.
Further, in step 3, height values Ht1, Ht2, Ht3 measured by the three barometric altitude sensors are obtained, an average value Ht is taken after abnormal values are removed, and T0 is T0 of the current Ht.
The invention has the beneficial effects that: the three aspects of height, temperature and power of opening umbrella are combined to complete the start of the position reporting device, so that the reliability is improved, and the probability of mistaken start of the position reporting device is reduced.
Drawings
FIG. 1 is a block diagram of a boot architecture;
fig. 2 is a sectional view of the sensor switch.
In the figure: 1-position reporting device, 2-umbrella band operating band, 3-upper connecting band, 4-upper buckle, 5-lower buckle, 6-lower connecting band, 7-pulling pin, 8-sensing switch, 9-shell, 10-inner cavity, 11-bottom of inner cavity, 12-strain gauge, 13-main control board card.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following description of the technical solutions of the present invention with reference to the accompanying drawings of the present invention is made clearly and completely, and other similar embodiments obtained by a person of ordinary skill in the art without any creative effort based on the embodiments in the present application shall fall within the protection scope of the present application.
The first embodiment is as follows:
a starting structure of a position reporting device 1 is shown in figure 1, and comprises the position reporting device 1, an umbrella band operating band 2, an upper connecting band 3, an upper buckle 4, a lower buckle 5, a lower connecting band 6, a pull pin 7 and a sensing switch 8.
Go up 3 upper ends of connecting band and operate area 2 in the umbrella area through making up fixed connection, go up 4 upper ends of buckle through winding fixed connection in 3 lower extremes of upper connecting band, go up buckle 4 and 5 joints of lower buckle together, the power of going up buckle 4 and 5 joints of lower buckle is greater than the upper limit of threshold value of power of opening (the umbrella can give the upper limit and the lower limit of the threshold value of power of opening when dispatching from the factory, power of opening is usually in the within range of threshold value during the opening of umbrella), 6 upper ends of lower connecting band are through winding fixed connection in 5 lower extremes of lower buckle, the upper end of pull pin 7 is through winding fixed connection in 6 lower extremes of lower connecting band. Go up buckle 4 and buckle 5 link together down during pilot's flight, in this embodiment, the power of going up buckle 4 and buckle 5 joint down is greater than ten times of the threshold value upper limit of parachute opening power, and the parachute opening power is too big when preventing to open the parachute to drag buckle 4 and buckle 5 down open, and when the pilot did not fly, will go up buckle 4 and buckle 5 down and untie, drag or pull by mistake and pull out pin 7 and lead to reporting 1 mistake start of device during preventing ground service personnel maintenance equipment.
As shown in fig. 2, the sensing switch 8 is installed at the upper end of the position reporting device 1, the sensing switch 8 includes a housing 9, an inner cavity 10 and a triaxial 60-degree strain gauge, the upper end of the housing 9 extends downward to form the inner cavity 10, the lower end of the pull pin 7 is inserted into the inner cavity 10, the force of the insertion of the pull pin 7 is greater than the lower threshold value of the opening force and less than the upper threshold value of the opening force, the bottom 11 of the inner cavity is made of an elastomer of a rubber material, the strain gauge 12 of the triaxial 60-degree strain gauge is a temperature sensing strain gauge 12, the three temperature sensing strain gauges 12 are respectively bonded at the left side, the right side and the bottom of the outer wall at the bottom of the inner cavity 10, the three temperature sensing strain gauges 12 are electrically connected with a main control board 13 of the position reporting device 1, and the position reporting device 1 obtains the force value and the temperature value measured by the temperature sensing strain gauges. When the pulling pin 7 is in the inner cavity 10, the stress of the pulling pin is transferred to the strain gauge 12 through the bottom of the inner cavity 10 made of the elastomer of the rubber material, and on the other hand, the force of the plugging of the pulling pin 7 is larger than the lower threshold value limit of the parachute opening force and smaller than the upper threshold value limit of the parachute opening force, so that the pulling pin 7 is prevented from being pulled out by other forces.
The pulling pin 7 is made of a magnetic conductor, a magnetic induction circuit is arranged at a position, right below the inner cavity 10, of the main control board card 13 of the position reporting device 1, a distance threshold value is set, when the distance between the pulling pin 7 and the magnetic induction circuit is smaller than the distance threshold value, the pulling pin 7 is judged not to be pulled out, and when the distance between the pulling pin 7 and the magnetic induction circuit is larger than or equal to the distance threshold value, the pulling pin 7 is judged to be pulled out; at least three air pressure height sensors are installed in the position reporting device 1 and are electrically connected with a main control board card 13 of the position reporting device 1, and the position reporting device 1 acquires a height value measured by the air pressure height sensors.
Example two:
a temperature-based bit reporting device starting method is based on a starting mechanism of the first embodiment and comprises the following steps:
step 1: acquiring temperature values Tt1, Tt2 and Tt3 measured by the three temperature-sensitive strain gauges, and taking an average value Tt after eliminating abnormal values; the present embodiment employs the steps of removing abnormal values, determining whether Tt1 is greater than 2 times the average value of Tt2 and Tt3, determining Tt1 as abnormal data and removing it if so, determining T2 as greater than 2 times the average value of Tt1 and Tt3, determining Tt2 as abnormal data and removing it if so, determining Tt3 as greater than 2 times the average value of Tt1 and Tt2, determining Tt3 as abnormal data and removing it if so.
Step 2: judging whether Tt is greater than a temperature limit value T0, if so, entering a step 3, otherwise, returning to the step 1; in the step, height values Ht1, Ht2 and Ht3 measured by three barometric altitude sensors are obtained, an average value Ht is obtained after abnormal values are removed, the removing method is the same as the method for removing the temperature abnormal values in the step 1, T0 is T0 of the current Ht, and T0 corresponding to different Hts is obtained through pre-experimental measurement.
And step 3: judging whether the count X is larger than a count limit value X0, if so, entering a step 6, otherwise, adding 1 to the X, and entering a step 4; and 4, step 4: acquiring force values Nt1, Nt2 and Nt3 measured by three temperature sensing strain gauges, and calculating an average scalar value | Nt |; and 5: judging whether the | Nt | is greater than 0, judging whether the | Nt | is less than a threshold lower limit | N0min | of the parachute opening force, if any one of the | Nt | and the | N0min | is greater than the threshold lower limit, entering the step 6, and if both are not greater than the threshold lower limit, returning to the step 1; and 4, step 5 and step 3 prevent the temperature value from being unexpected and causing misjudgment, and step 4 and step 5 prevent the temperature value from being unexpected and causing misjudgment.
Step 6: the position reporting device is started and reports the position.
Example three:
a start-up method of a position reporting device based on parachute opening force is based on a start-up mechanism of the first embodiment and comprises the following steps:
step 1: and (4) judging whether the pulling pin is pulled open or not, if so, entering the step 2, and otherwise, entering the step 8.
Step 2: acquiring temperature values Tt1, Tt2 and Tt3 measured by the three temperature-sensitive strain gauges, and taking an average value Tt after eliminating abnormal values; and step 3: judging whether Tt is greater than a temperature limit value T0, if so, entering step 4, otherwise, entering step 5, wherein in the step, height values Ht1, Ht2 and Ht3 measured by three air pressure height sensors are obtained, after abnormal values are eliminated, an average value Ht is obtained, the elimination method is the same as the method for eliminating the temperature abnormal values in step 1, T0 is T0 of the current Ht, and T0 corresponding to different Hts are obtained through the previous experimental measurement; and step 2 and step 3 prevent step 1 from causing accidents and causing misjudgment.
And 4, step 4: starting the position reporting device and reporting the position;
and 5: judging whether the maximum value | Nmax | of the force when the pulling pin is not pulled out is larger than the lower limit | N0min | of the threshold value of the parachute opening force, if so, entering a step 6, otherwise, entering a step 7
Step 6: marking the Nmax as a fault value, and returning to the step 1; this step records fault data for fault analysis after flight is complete
And 7: making | N0min | ═ Nmax |, and returning to step 1; the step corrects | N0min |, and is used for testing whether the force of pin pulling and inserting meets the requirement after the flight is finished, so that misjudgment caused by pin pulling aging is prevented.
And 8: acquiring force values Nt1, Nt2 and Nt3 measured by three temperature sensing strain gauges, and calculating an average scalar value | Nt |; and step 9: if the | Nt | is larger than the maximum value | Nmax | of the force when the pulling pin is not pulled out, the | Nmax | is made to be | Nt |, and the step 1 is returned; and if the | Nt | is smaller than the minimum | Nmin | of the force when the pulling pin is not pulled out, making the | Nmin | equal to the | Nt | and returning to the step 1. The step corrects the stress range in the cavity when the pulling pin is not pulled out in real time, so that the data analysis is facilitated.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1.一种报位装置开机结构,包括报位装置,其特征在于,还包括伞带操纵带、上连接带、上卡扣、下卡扣、下连接带、拔销和传感开关;1. a position reporting device start-up structure, comprising a position reporting device, is characterized in that, also comprises umbrella belt control belt, upper connection belt, upper buckle, lower buckle, lower connection belt, pull pin and sensor switch; 上连接带上端固定连接于伞带操纵带,上卡扣上端固定连接于上连接带下端,上卡扣和下卡扣卡接在一起,上卡扣和下卡扣卡接的力大于开伞力的门限值上限,下连接带上端固定连接于下卡扣下端,拔销上端固定连接于下连接带下端;The upper end of the upper connecting belt is fixedly connected to the umbrella belt control belt, and the upper end of the upper buckle is fixedly connected to the lower end of the upper connecting belt. The upper limit of the force threshold, the upper end of the lower connecting belt is fixedly connected to the lower end of the lower buckle, and the upper end of the pull-out pin is fixedly connected to the lower end of the lower connecting belt; 传感开关安装于报位装置上端,传感开关包括外壳、内腔和三轴60°应变花,外壳上端向下延伸形成内腔,拔销下端插接在内腔内,拔销插接的力大于开伞力的门限值下限,小于开伞力的门限值上限,内腔的底部由橡胶材料的弹性体制成,三轴60°应变花的应变片为感温应变片,三个感温应变片分别粘结于内腔底部外壁的左侧、右侧和底部,三个感温应变片与报位装置的主控板卡电连接,报位装置获取感温应变片测量的力值和温度值;The sensor switch is installed on the upper end of the position reporting device. The sensor switch includes an outer casing, an inner cavity and a three-axis 60° strain rosette. The upper end of the outer casing extends downward to form an inner cavity, and the lower end of the pulling pin is inserted into the inner cavity. The force is greater than the lower limit of the threshold value of the umbrella opening force, and less than the upper limit of the threshold value of the umbrella opening force. The bottom of the inner cavity is made of elastomer of rubber material, and the strain gauge of the triaxial 60° strain rose is a temperature-sensitive strain gauge. The temperature-sensing strain gauges are respectively bonded to the left, right and bottom of the outer wall of the bottom of the cavity. The three temperature-sensing strain gauges are electrically connected to the main control board of the position reporting device, and the position reporting device obtains the force measured by the temperature-sensing strain gauges. value and temperature value; 拔销的材料为磁导体,报位装置主控板卡位于内腔正下方的位置设置有磁感电路;报位装置内安装有至少三个气压高度传感器,并与报位装置的主控板卡电连接,报位装置获取气压高度传感器测量的高度值。The material for pulling the pin is a magnetic conductor, and the position reporting device main control board is provided with a magnetic induction circuit at the position just below the inner cavity; The card is electrically connected, and the position reporting device obtains the altitude value measured by the barometric altitude sensor. 2.一种基于温度的报位装置开机方法,其特征在于,使用如权利要求1所述的报位装置开机结构,所述的基于温度的报位装置开机方法包括如下步骤:2. a position reporting device booting method based on temperature, is characterized in that, using the reporting position device booting structure as claimed in claim 1, described temperature-based reporting position device booting method comprises the steps: 步骤1:获取三个感温应变片测量的温度值Tt1、Tt2、Tt3,剔除异常值后取平均值Tt;Step 1: Obtain the temperature values Tt1, Tt2, and Tt3 measured by three temperature-sensing strain gauges, and get the average value Tt after removing the abnormal values; 步骤2:判断Tt是否大于温度限值T0,若是则进入步骤3,若否则返回步骤1;Step 2: Determine whether Tt is greater than the temperature limit T0, if so, go to Step 3, otherwise return to Step 1; 步骤3:判断计数X是否大于计数限值X0,若是则进入步骤6,若否则X加1,并进入步骤4;Step 3: Determine whether the count X is greater than the count limit X0, if so, go to Step 6, if not, add 1 to X, and go to Step 4; 步骤4:获取三个感温应变片测量的力值Nt1、Nt2、Nt3,并计算平均标量值|Nt|;Step 4: Obtain the force values Nt1, Nt2, and Nt3 measured by the three temperature-sensing strain gauges, and calculate the average scalar value |Nt|; 步骤5:判断|Nt|是否大于0,判断|Nt|是否小于开伞力的门限值下限|N0min|,二者任意一个为是则进入步骤6,二者均为否则返回步骤1;Step 5: judge whether |Nt| is greater than 0, and judge whether |Nt| is less than the lower limit of the threshold value of the parachute force |N0min|, if either of the two is yes, go to step 6, otherwise return to step 1; 步骤6:报位装置开机并进行报位置。Step 6: Turn on the position reporting device and report the position. 3.如权利要求2所述的一种基于温度的报位装置开机方法,其特征在于,步骤2中,获取三个气压高度传感器测量的高度值Ht1、Ht2、Ht3,剔除异常值后取平均值Ht,T0为当前Ht的T0。3. a kind of temperature-based reporting device booting method as claimed in claim 2, is characterized in that, in step 2, obtain the height value Ht1, Ht2, Ht3 that three air pressure height sensors measure, get average after removing abnormal value The value Ht, T0 is the T0 of the current Ht. 4.一种基于开伞力的报位装置开机方法,其特征在于,使用如权利要求1所述的报位装置开机结构,所述的基于开伞力的报位装置开机方法包括如下步骤:4. a position reporting device booting method based on parachute opening force is characterized in that, using the reporting position device booting structure as claimed in claim 1, the described position reporting device booting method based on parachute opening force comprises the steps: 步骤1:判断拔销是否拉开,若是则进入步骤2,若否则进入步骤8;Step 1: Determine whether the pull pin is pulled open, if so, go to Step 2, if not, go to Step 8; 步骤2:获取三个感温应变片测量的温度值Tt1、Tt2、Tt3,剔除异常值后取平均值Tt;Step 2: Obtain the temperature values Tt1, Tt2, Tt3 measured by the three temperature-sensing strain gauges, and get the average value Tt after removing the abnormal values; 步骤3:判断Tt是否大于温度限值T0,若是则进入步骤4,若否则进入步骤5;Step 3: Determine whether Tt is greater than the temperature limit T0, if so, go to Step 4, if not, go to Step 5; 步骤4:报位装置开机并进行报位置;Step 4: Turn on the position reporting device and report the position; 步骤5:判断拔销未拔出时力的最大值|Nmax|是否大于开伞力的门限值下限|N0min|,若是则进入步骤6,若否则进入步骤7;Step 5: Determine whether the maximum force |Nmax| of the force when the pin is not pulled out is greater than the lower limit of the threshold |N0min| of the parachute force, if so, go to Step 6, otherwise go to Step 7; 步骤6:将|Nmax|标记为故障值,并返回步骤1;Step 6: Mark |Nmax| as the fault value and return to step 1; 步骤7:令|N0min|=|Nmax|,并返回步骤1;Step 7: Let |N0min|=|Nmax|, and return to step 1; 步骤8:获取三个感温应变片测量的力值Nt1、Nt2、Nt3,并计算平均标量值|Nt|;Step 8: Obtain the force values Nt1, Nt2, Nt3 measured by the three temperature-sensing strain gauges, and calculate the average scalar value |Nt|; 步骤9:若|Nt|大于拔销未拔出时力的最大值|Nmax|,则令|Nmax|=|Nt|,并返回步骤1;若|Nt|小于拔销未拔出时力的最小值|Nmin|,则令|Nmin|=|Nt|,并返回步骤1。Step 9: If |Nt| is greater than the maximum force |Nmax| of the force when the pin is not pulled out, then set |Nmax|=|Nt|, and return to step 1; if |Nt| is less than the force when the pin is not pulled out The minimum value |Nmin|, then let |Nmin|=|Nt|, and return to step 1. 5.如权利要求4所述的一种基于开伞力的报位装置开机方法,其特征在于,步骤3中,获取三个气压高度传感器测量的高度值Ht1、Ht2、Ht3,剔除异常值后取平均值Ht,T0为当前Ht的T0。5. a kind of position reporting device startup method based on parachute opening force as claimed in claim 4, is characterized in that, in step 3, obtain the height value Ht1, Ht2, Ht3 that three air pressure height sensors measure, after eliminating abnormal value Take the average value Ht, T0 is the T0 of the current Ht.
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