CN100585418C - Tester used for testing operating reliability of oxygen distribution loop of capsule cabin - Google Patents
Tester used for testing operating reliability of oxygen distribution loop of capsule cabin Download PDFInfo
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- CN100585418C CN100585418C CN200610083091A CN200610083091A CN100585418C CN 100585418 C CN100585418 C CN 100585418C CN 200610083091 A CN200610083091 A CN 200610083091A CN 200610083091 A CN200610083091 A CN 200610083091A CN 100585418 C CN100585418 C CN 100585418C
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- tester
- capsule cabin
- output signal
- oxygen
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Abstract
The invention discloses a tester (100), which comprises the following parts: cabin oxygen distributing circuit (1) with multiple parts (20, 30, 40, 50) to distribute oxygen to the people in the cabin under urgent condition, devices (20', 30', 40', 50') to replace at least one tester in electric connection with the cabin oxygen distributing circuit, indicator (120) to indicate the electric connection of tester and cabin oxygen distributing circuit has been built, switch devices (RL1, RL2, RL3, RL4) to start the output signal of tester to indicate the operational condition when connecting the cabin oxygen distributing circuit. The invention also relates to an application of the tester (100) and operationally reliable method to test the cabin oxygen distributing circuit.
Description
Technical field
The present invention relates to a kind of tester, be used to test the operational reliability of capsule cabin oxygen distribute loop, thereby guarantee the supply of oxygen under emergency situations from capsule cabin oxygen distribute loop to the aircraft cabin crew with a plurality of parts.
Background technology
The oxygen distribute loop that is used for the passenger cabin crew drops under the situation below the critical value oxygen supply to aircraft cabin at cabin pressure.In contemporary aircraft, the oxygen distribute loop that is used for the passenger cabin crew is separated with the oxygen distribute loop that is used for aircraft passenger.Typically, the oxygen distribute loop that is used for the passenger comprises Chemical Oxygen Source, that is to say, in case cabin pressure drops to below the critical value, starts chemical reaction, consequently produces oxygen.On the contrary, capsule cabin oxygen distribute loop uses under emergency situations oxygen from wherein supplying to the oxygen bottle of aircraft cabin.
Fig. 1 shows the example of passenger cabin crew oxygen distribute loop.Provide oxygen bottle 10 as oxygen source.Oxygen bottle 10 is connected to the face shield 4 that is used for the passenger cabin crew via conduit 5,15.These face shields 4 are stored in the storage box 3 usually, and face shield discharges from storage box 3 when the passenger cabin internal pressure descends.Outlet at oxygen bottle 10 provides pressure gauge 20.The pressure by air pressure regulator that label 30 has indicated adjusting (reducing) to be provided by oxygen bottle 10.Provide solenoid valve 40 so that beginning or stop oxygen flow from oxygen bottle 10.During the normal running of aircraft, solenoid valve 40 is normally opened and can be via the switch that provides in the aircraft cabin (for example switch among Fig. 4 44) by passenger cabin crew closure.In addition, in conduit 15, provide pressure switch 50.When the air pressure in the conduit 15 drops into predetermined value when following, pressure switch 50 is opened, start low-voltage signal on the display in passenger cabin thus, the air pressure that is used in the passenger cabin crew warns conduit 15 no longer is enough to be used in providing enough oxygen amounts to the passenger cabin crew under emergency situations.Need not superfluous words, a plurality of these oxygen bottles 10 are provided in the aircraft of reality, and conduit 15 is towards these oxygen bottle 10 bifurcateds.Provide conduit 13 to be used for overvoltage is discharged to outside the machine of aircraft.
The ground test of aircraft need carry out many different tests.These test cases are as comprising about pressure gauge 20, pressure governor 30, solenoid valve 40 and pressure switch 50 to correct connection of capsule cabin oxygen distribute loop testing these parts, that is to say whether these parts correctly are connected to the signal wire of guiding the passenger cabin inner controller into.Whether in addition, importantly verifying these parts can be as the controlling of defined, and for example can correctly be presented at by the correct pressure that capsule cabin oxygen distribute loop offers aircraft cabin on the display in the passenger cabin.
Therefore an object of the present invention is to provide a kind of tester that is used to test the operational reliability of passenger cabin oxygen dispensing loop, utilize this tester can test the electrical connection and the control of the various parts of capsule cabin oxygen distribute loop at operational reliability.
Summary of the invention
This purpose and other purposes solve by a kind of tester, this tester is used to test the operational reliability of the capsule cabin oxygen distribute loop with a plurality of parts, thereby guarantees the supply of oxygen from capsule cabin oxygen distribute loop to the aircraft cabin crew under emergency situations.Tester according to the present invention comprises: be used for and will replace at least one tester of parts to be electrically connected to the device of capsule cabin oxygen distribute loop; Indicator is used to indicate tester to set up in a predefined manner to the electrical connection of capsule cabin oxygen distribute loop; And switchgear, be used to start the output signal of tester, wherein the operating conditions of this output signal indicating device when being connected to capsule cabin oxygen distribute loop.
Replace in the parts at least one to be connected to capsule cabin oxygen distribute loop according to tester of the present invention.When connecting, whether tester correctly connects at first step indication tester.Why important this indicates is because it has indicated parts whether can correctly be wired to the Electronic Control infrastructure of capsule cabin oxygen distribute loop after test is finished.In second step, start the switchgear of tester with the output signal of simulation component the signal of output (when parts are connected to capsule cabin oxygen distribute loop with).This output signal of tester is sent to the corresponding display in the passenger cabin, satisfies the requirement of defined so that conclude the operating conditions of the assembly that imagination connects.Therefore the simple tool of the correct running of a kind of electrical connection that is used for emulation capsule cabin oxygen distribute loop parts and these parts is provided according to tester of the present invention.
In a preferred embodiment, the scheduled operation condition of described output signal indicating device.Because tester can generate the output signal of indication by the scheduled operation condition of the parts of tester emulation by using switchgear, so specific contingency condition can be by tester emulation, and the performance of each parts can be examined in such circumstances.Therefore the operational reliability of capsule cabin oxygen distribute loop parts can come to determine uniquely based on the output signal of tester.Operational reliability can be for example compares by the oxygen bottle pressure that shows institute's emulation on the display in passenger cabin and with the oxygen bottle pressure of this emulation and the actual pressure in the oxygen bottle to be checked.
Preferably, the output signal that generates by parts when replacing tester to be connected to capsule cabin oxygen distribute loop now of the output signal of tester at parts.Therefore, described output signal is to direct and clear and definite the measuring of the actual operation characteristic of parts when parts are connected with capsule cabin oxygen distribute loop.
According to another embodiment of the present invention, the device that is used for tester is electrically connected to capsule cabin oxygen distribute loop comprises a plurality of terminals, and each terminal has input and output.Preferably, a plurality of terminals that provide on the corresponding component of described a plurality of terminal corresponding to capsule cabin oxygen distribute loop.In this way, tester can easily be connected to capsule cabin oxygen distribute loop, because the terminal that provides on the terminal that provides on the tester and the parts is identical, and has therefore avoided the use adapter.This has made things convenient for widely tester is used for capsule cabin oxygen distribute loop is carried out operational reliability test.
Preferably, the switchgear of tester comprises a plurality of relays.In addition, relay preferably is assigned to output signal the output of different terminals when switch.Therefore, owing to considered relay of output signal of the condition of work of the some parts of emulation indication capsule cabin oxygen distribute loop, the number of needed relay is reduced.
In addition, relay preferably can be by being controlled from the input signal that the control module that is arranged in aircraft cabin receives by tester.By for example inductive switch being encouraged solenoid valve and comes emulation to act on the pressure of pressure governor now by the use test device, can easily test via what provide in the passenger cabin.The pressure of this emulation should start the corresponding pressure signal of the specified pressure reading that causes on the passenger cabin inner gauge.This pressure reading can compare with comparing data, so that check this pressure reading correct.If correct, then the electric control of solenoid valve and pressure governor can be assumed to as defined.
In another preferred embodiment, indicator comprises a plurality of light emitting diodes.These light emitting diodes allow the user of testers to recognize immediately, to the tester of capsule cabin oxygen distribute loop and so to the parts of capsule cabin oxygen distribute loop not as defined.Preferably, each light emitting diode is connected to an input of a plurality of terminals.Another preferred embodiment provides: each light emitting diode activates when applying earth potential to the described input of terminal.
In another embodiment, this tester replaces pressure governor, solenoid valve, oxygen pressure gauge and pressure switch to be connected to capsule cabin oxygen distribute loop.Therefore, the electrical connection of pressure governor, solenoid valve, oxygen pressure gauge and pressure switch and control can be tested with a single tester, and all these parts all are the basic elements of character of capsule cabin oxygen distribute loop.
Preferably, the input and output signal of tester is in the scope of 0 volt and 20 volts DC.
The present invention is characterised in that a kind of purposes of tester on the other hand, this tester is used to test the operational reliability of the capsule cabin oxygen distribute loop with a plurality of parts, thereby guarantee the supply of oxygen from capsule cabin oxygen distribute loop to the aircraft cabin crew under emergency situations, wherein this tester as previously mentioned.
Another aspect of the invention is characterised in that a kind of operational reliability that is used to test the capsule cabin oxygen distribute loop with a plurality of parts, thereby guarantees the method for the supply of oxygen from capsule cabin oxygen distribute loop to the aircraft cabin crew under emergency situations.The method according to this invention comprises step: will replace that the tester of at least one is electrically connected to capsule cabin oxygen distribute loop in the parts; Set up in a predefined manner to the electrical connection of capsule cabin oxygen distribute loop by means of indicator verification test device; And the switchgear that starts the output signal be used to start tester, the wherein operating conditions of this output signal indicating device when being connected to capsule cabin oxygen distribute loop.
A preferred embodiment of the method according to this invention also comprises step: check the scheduled operation condition of this output signal indicating device when being connected to capsule cabin oxygen distribute loop, if this output signal does not have indicating predetermined operating conditions, then regulate the scheduled operation condition of capsule cabin oxygen distribute loop until this output signal indicating device.
Following according to the preferred embodiment of the invention detailed description, thus with reference to accompanying drawing, it is obvious that other features and advantages of the present invention will become.
Description of drawings
Fig. 1 is the schematically showing of example of the capsule cabin oxygen distribute loop installed on the aircraft machine;
Fig. 2 is the wiring diagram according to tester of the present invention, shows the tester terminal that will be connected with the capsule cabin oxygen distribute loop terminal;
Fig. 3 is the wiring diagram according to the electron plate that provides in the tester of the present invention; And
Fig. 4 shows solenoid control via the switch that provides in the aircraft cabin by example.
Embodiment
Described as reference Fig. 1, capsule cabin oxygen distribute loop needs frequent maintenance test, checks thus whether each parts of capsule cabin oxygen distribute loop can correctly be connected to the Electronic Control infrastructure of the capsule cabin oxygen distribute loop of installing on the aircraft machine.In case the electrical connection of determining parts is as defined, also must check, via to each parts and from these parts to the signal wire that for example is installed in driver in the aircraft cabin, switch, display etc. the control of these parts made and under emergency situations, to supply with enough oxygen to the passenger cabin crew from capsule cabin oxygen distribute loop.Tester according to the present invention provides the mode easily and easily of carrying out these tests.
Fig. 2 is the wiring diagram according to tester 100 of the present invention.This tester comprises the terminal 20 ', 30 ', 40 ', 50 ' of the electronics infrastructure terminal (see figure 1) that will be connected to capsule cabin oxygen distribute loop 1, thereby replaces the parts such as pressure gauge 20, pressure governor 30, solenoid valve 40 and pressure switch 50 (see figure 1)s.Specifically, terminal 30 ' will be connected with the corresponding terminal of pressure governor 30, and terminal 20 ' will be connected with the corresponding terminal of pressure gauge 20, and terminal 50 ' will be connected with the corresponding terminal of pressure switch 50, and terminal 40 ' will be connected with the corresponding terminal of solenoid valve 40.Therefore, during the ground test of aircraft, each parts 20,30,40,50 are replaced by tester 100.
With reference to Fig. 3, show in detail the electron plate of in Fig. 2, indicating by label 110.Hereinafter, will its function and use test device 10 can to capsule cabin oxygen distribute loop carry out which test aspect by example the electron plate of Fig. 3 is described.To three different tests be described.Should point out that the test that provides by example here is not an exhaustive, but and use test device 100 carry out other tests.In order to describe this three tests, suppose that when tester 100 is connected to capsule cabin oxygen distribute loop 1 all LED 120 of tester 100 activate.
When tester 100 is connected with passenger cabin oxygen distribution system, in transistor T 1, will cause electric current and flow, consequently relay R L4 is with closure.Therefore, the 2V signal is applied to the contact 2 corresponding to the contact A of terminal 30 '.This 2V output signal is corresponding to 2 volts of output signals that normally generated by pressure governor 30 during the normal running of aircraft.This 2V output signal causes predetermined oxygen pressure reading (x psi) to be presented on the interior display of aircraft cabin.In other words, the output signal of tester 100 emulation pressure governors 30 is so that check this output signal to cause correct oxygen pressure reading on the display in the aircraft cabin.
The second exemplary test comprises the switch 44 that excitation provides in the aircraft cabin and sets up power supply 42 and is connected (see figure 4) with operability between the switch 44.When push switch 44, be applied to the contact A of solenoid valve 40 here by the voltage (being 28V) of power supply 42 supplies.With reference to Fig. 2, the contact A of terminal 40 ' is corresponding to the contact 12 of electron plate 110.Therefore, the 28V input signal (see figure 3) in the contact 12 causes closing relay RL1, so the 4V output signal is applied to the contact 2 of electron plate 110.Contact 2 contact A (see figure 2)s corresponding to terminal 30 '.Therefore, the 4V output signal is applied to the contact A of terminal 30 '.This 4V output signal is by pressure governor 30 normal generations during the normal running of aircraft.4V output signal on the contact A of terminal 30 ' will cause another oxygen pressure reading (y psi) to be presented on the interior display of aircraft cabin.If the oxygen pressure reading is correct, then conclude pressure governor 30 electric wiring and control as defined.In addition, can test the output signal that during the normal running of aircraft, generates by pressure governor and whether realize correct oxygen pressure reading on the display in the passenger cabin.
As the 3rd exemplary test, manually
Switch 44, the operability that remains to power supply 42 thus connects.In the open mode of switch 44, the voltage of power supply 42 (28V) is applied to the contact C (see figure 4) of solenoid valve 40.The contact C of solenoid valve 40 is corresponding to contact 15 (see figure 2)s of electron plate 110.The 28V input signal of contact on 15 causes closing relay RL3, therefore will contact 16 and be connected with earth potential.Therefore, the contact B of terminal 50 ' is in earth potential, realizes the hypoxemia pressure alarm in the passenger cabin thus.If the 3rd exemplary test causes in the passenger cabin and reports to the police, conclude that then electric wiring until the contact C of terminal 40 ' (also being solenoid valve 40 therefore) is as defined.Simultaneously, by whether starting corresponding alerting signal in the check flight device passenger cabin, but inspection pressure switch 50 is exported correct output signal during the normal running of aircraft.
Essence of the present invention provides a plurality of parts simple of the capsule cabin oxygen distribute loop of installing on a kind of testing flying vehicle machine and mode easily.Replace test these parts itself, these parts are withdrawn from from capsule cabin oxygen distribute loop, and will be connected to the normal capsule cabin oxygen distribute loop terminal that is connected to of described a plurality of parts according to the terminal of tester of the present invention.
By corresponding indicator is provided on tester, in the preferred embodiment LED, can easily check electric wiring such as the defined of the Electronic Control infrastructure of capsule cabin oxygen distribute loop until component terminal.In case set up correct connection plan, just can carry out various tests, thereby check these output signals for example to realize corresponding oxygen pressure reading on the display in the passenger cabin so that come the output signal of the various parts of emulation by tester.Therefore, simplify the ground test of aircraft widely, particularly about the test of the operational reliability of capsule cabin oxygen distribute loop according to tester of the present invention.
Claims (13)
1. a tester (100) is used for test and has a plurality of parts (20,30,40, the operational reliability of capsule cabin oxygen distribute loop 50) (1), thus guarantee the supply of oxygen under emergency situations from described capsule cabin oxygen distribute loop to the aircraft cabin crew, and described tester comprises:
Be used for the described tester (100) of at least one in the described parts of replacement (20,30,40,50) is electrically connected to the device (20 ', 30 ', 40 ', 50 ') of described capsule cabin oxygen distribute loop (1),
Indicator (120) is used to indicate described tester (100) to set up in a predefined manner to the electrical connection of described capsule cabin oxygen distribute loop (1), and
Switchgear (RL3 RL4), is used to start the output signal of described tester (100) for RL1, RL2, and described output signal is indicated the operating conditions of described parts (20,30,40,50) when being connected to described capsule cabin oxygen distribute loop,
Wherein, the described device that is used for described tester (100) is electrically connected to described capsule cabin oxygen distribute loop (1) comprises a plurality of terminals (20 ', 30 ', 40 ', 50 '), each terminal has input and output, described a plurality of terminals (20 ', 30 ', 40 ', 50 ') corresponding to the corresponding component (20,30 of described capsule cabin oxygen distribute loop (1), 40,50) a plurality of terminals that provide on.
2. according to the tester of claim 1, wherein said output signal is indicated the scheduled operation condition of described parts (20,30,40,50).
3. according to the tester of claim 1 or 2, the output signal that wherein said output signal generates when being connected to described capsule cabin oxygen distribute loop corresponding to described parts (20,30,40,50).
4. according to the tester of claim 1, wherein said switchgear comprise a plurality of relays (RL1, RL2, RL3, RL4).
5. according to the tester of claim 4, (RL3 RL4) is assigned to output signal in the output of (20 ', 30 ', 40 ', 50 ') of different terminals when switch wherein said relay for RL1, RL2.
6. according to the tester of claim 4 or 5, (RL3 RL4) can be by being controlled from the input signal that the control module (42,44) that is arranged in aircraft cabin receives by described tester (100) for RL1, RL2 for wherein said relay.
7. according to the tester of claim 1, wherein said indicator comprises a plurality of light emitting diodes (120).
8. according to the tester of claim 7, wherein each light emitting diode (120) is connected to an input of described a plurality of terminal (20 ', 30 ', 40 ', 50 ').
9. tester according to Claim 8, wherein each light emitting diode (120) activation when applying earth potential to the described input of described terminal (20 ', 30 ', 40 ', 50 ').
10. according to the tester of claim 1, wherein said tester (100) replaces pressure governor (30), solenoid valve (40), oxygen pressure gauge (20) and pressure switch (50) to be connected to described capsule cabin oxygen distribute loop (1).
11. according to the tester of claim 6, the input and output signal of wherein said tester is in the scope of 0V and 28V DC.
12. one kind is used for test and has a plurality of parts (20, the operational reliability of capsule cabin oxygen distribute loop 30,40,50), thereby guarantee the method for oxygen from described capsule cabin oxygen distribute loop (1) to aircraft cabin crew's supply under emergency situations, the method comprising the steps of:
To replace via in a plurality of terminals (20 ', 30 ', 40 ', 50 ') at least one that the described tester (100) of at least one is electrically connected to described capsule cabin oxygen distribute loop (1) in the described parts (20,30,40,50),
Check described tester (100) to set up in a predefined manner by means of indicator (120) to the electrical connection of described capsule cabin oxygen distribute loop (1), and
Start the output signal be used to start described tester (100) switchgear (RL1, RL2, RL3, RL4), described output signal is indicated the operating conditions of described parts (20,30,40,50) when being connected to described capsule cabin oxygen distribute loop (1).
13., also comprise step according to the method for claim 12:
Check described output signal to indicate described parts (20,30,40,50) the scheduled operation condition when being connected to described capsule cabin oxygen distribute loop (1), if described output signal is not indicated described scheduled operation condition, then regulate described capsule cabin oxygen distribute loop (1) and indicate described parts (20,30 until described output signal, 40,50) described scheduled operation condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083091A CN100585418C (en) | 2006-05-31 | 2006-05-31 | Tester used for testing operating reliability of oxygen distribution loop of capsule cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610083091A CN100585418C (en) | 2006-05-31 | 2006-05-31 | Tester used for testing operating reliability of oxygen distribution loop of capsule cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101082652A CN101082652A (en) | 2007-12-05 |
| CN100585418C true CN100585418C (en) | 2010-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610083091A Expired - Fee Related CN100585418C (en) | 2006-05-31 | 2006-05-31 | Tester used for testing operating reliability of oxygen distribution loop of capsule cabin |
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| Country | Link |
|---|---|
| CN (1) | CN100585418C (en) |
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- 2006-05-31 CN CN200610083091A patent/CN100585418C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101082652A (en) | 2007-12-05 |
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Owner name: AIRBUS DEUTSCHLAND GMBH Free format text: FORMER NAME: AIRBUS GMBH |
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Address after: hamburg Patentee after: Airbus Operations GmbH Address before: hamburg Patentee before: Airbus GmbH |
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Granted publication date: 20100127 Termination date: 20170531 |