Aircraft baton with airborne meteorological radar radiation alarm function

Abstract

The invention relates to the technical field of aircraft maintenance safety, and discloses an aircraft baton with an airborne meteorological radar radiation alarm function, which comprises a handheld part, a detection control part and a warning part. The detection control part is connected with one end of the handheld part, a sensing device and a controller are arranged in the detection control part, and the sensing device is electrically connected to the controller. The warning part is connected to the end, opposite to the handheld part, of the detection control part and provided with a warning element, and the warning element is electrically connected to the controller. When the sensing device receives an aircraft meteorological radar signal and then transmits the signal to the controller, the controller judges whether the signal accords with a preset range or not, and if the signal accords with the preset range, the controller informs the warning element to send warning information to the outside. By using the airplane baton, a ground commander can know the radiation condition of the airplane radar, and meanwhile, the warning information can be received by the flight personnel to remind the flight personnel to check and turn off the radar, so that the ground commander is prevented from being excessively radiated, and the physical and psychological health of the personnel is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of aircraft maintenance safety, in particular to an aircraft baton with an airborne weather radar radiation alarm function. Background Art

[0002] Modern civil airliners are generally equipped with weather radar systems, which are mainly used to detect weather targets on the route. The system consists of radar transceivers, control panels, antenna drive components, antennas, waveguides and other components. The radar antenna installed in the nose radome sweeps back and forth when working, emitting X-band pulse signals, and has strong electromagnetic radiation capabilities. Although electromagnetic radiation is invisible and colorless, it can cause harm to human health. Long-term electromagnetic radiation can also increase the risk of cancer and cause other potential diseases.

[0003] At present, flight crews often forget to turn off the weather radar after the plane lands, resulting in ground personnel being exposed to the radar while directing the aircraft to taxi. This situation is usually discovered by ground personnel when they enter the cockpit to check. At this time, the ground personnel have been exposed to the radar for a long time, which causes great harm to their physical and mental health. It may cause the ground personnel to be depressed at work or even resist work, seriously affecting subsequent work. Summary of the invention

[0004] The purpose of the present invention is to provide an aircraft baton with an airborne weather radar radiation alarm function to prevent ground command personnel from being subjected to excessive radiation from the aircraft weather radar and to ensure the physical and mental health of the personnel.

[0005] In order to achieve the above object, the present invention provides an aircraft baton with an airborne weather radar radiation alarm function, comprising:

[0006] Handheld part;

[0007] A detection control unit, the detection control unit is connected to one end of the handheld unit, a sensing device and a controller are arranged in the detection control unit, and the sensing device is electrically connected to the controller;

[0008] An alarm part, the alarm part is connected to an end of the detection control part facing away from the handheld part, the alarm part is provided with an alarm element, and the alarm element is electrically connected to the controller;

[0009] The sensing device receives the aircraft weather radar signal and transmits it to the controller. The controller determines whether the signal is within a preset range. If the signal is within the preset range, the controller notifies the warning element to send a warning message to the outside.

[0010] Compared with the prior art, the aircraft baton with airborne weather radar radiation alarm function of the embodiment of the present invention has the following beneficial effects: the aircraft baton includes a handheld portion, a detection control portion and a warning portion arranged in sequence, the handheld portion is used for ground commanders to hold, the detection control portion detects the radiation status of the commanded aircraft's weather radar through its internal sensing device, if the detection control portion detects the radiation of the aircraft's weather radar, it sends a signal to the warning portion, and the warning element of the warning portion sends an externally observable signal to notify the flight personnel to turn off the weather radar. The aircraft baton of the present application integrates a detection device and a warning device, upgrading an ordinary light baton into a composite baton that can be used for aircraft weather radar radiation detection and warning. By using this aircraft baton, ground commanders can learn about the radiation status of the aircraft's weather radar, and the warning information can also be received by the flight personnel to remind them to check and turn off the weather radar, so as to avoid excessive radiation to the ground commanders and protect their physical and mental health.

[0011] In the aircraft baton of the embodiment of the present invention, the sensing device includes an airborne weather radar radiation detection mechanism, and the airborne weather radar radiation detection mechanism includes a receiving component and an amplifying component that are connected to each other, and the amplifying component is also connected to the controller.

[0012] In the aircraft baton of the embodiment of the present invention, the receiving component comprises an antenna, a limiter, a filter and a radio frequency detector which are connected in sequence, and the radio frequency detector is connected to the amplifying component.

[0013] In the aircraft baton of the embodiment of the present invention, the amplification component comprises a multi-stage amplifier, and the last stage of the multi-stage amplifier is electrically connected to the controller.

[0014] In the aircraft baton of the embodiment of the present invention, the controller includes a voltage comparator and a counter, and the counter is connected to the warning part.

[0015] In the aircraft baton of the embodiment of the present invention, the warning part includes a light component, a buzzer component and a vibration component, and the light component includes a flashing array composed of red and blue lamp beads.

[0016] In the aircraft baton of the embodiment of the present invention, a reset switch and a control switch are provided on the housing of the detection control unit, the reset switch is used to reset the warning unit, and the control switch is used to control the sensing device, the controller and the warning unit.

[0017] In the aircraft baton of the embodiment of the present invention, the control switch includes ON, OFF and TEST positions of sliding control, which control the switching of the sensing device, the controller, the alarm and the detection of the alarm unit.

[0018] In the aircraft baton of the embodiment of the present invention, a spring structure is provided at the TEST position to achieve automatic resetting after the TEST position detection is completed.

[0019] In the aircraft baton of the embodiment of the present invention, a rechargeable battery is arranged in the handheld part, and a charging port and a charging indicator light are arranged on the outer shell of the handheld part.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the external structure of an aircraft baton according to an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the connection of internal electronic components of an aircraft baton according to an embodiment of the present invention;

[0023] In the figure, 1. Hand-held part; 11. Charging port; 12. Charging indicator light; 2. Detection control part; 21. Reset switch; 22. Control switch; 3. Warning part. DETAILED DESCRIPTION

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] like Figure 1 As shown, an aircraft baton with an airborne weather radar radiation alarm function according to a preferred embodiment of the present invention comprises a handheld portion 1, a detection control portion 2 and a warning portion 3 arranged in sequence; the handheld portion 1 is used for ground command personnel to hold, and the handheld portion 1 has a cavity for accommodating batteries; the detection control portion 2 is connected to one end of the handheld portion 1, and a sensing device and a controller are arranged in the detection control portion 2. The sensing device detects the radiation state of the commanded aircraft's weather radar, and the sensing device is electrically connected to the controller. After the detection is completed, the sensing device transmits data to the controller, and the controller judges the radiation state and outputs warning information; the warning portion 3 is used to send a warning signal and remind the flight personnel to turn off the weather radar. The warning portion 3 is connected to the end of the detection control portion 2 facing away from the handheld portion 1, and the warning portion 3 is provided with a warning element, which includes a light component, a buzzer component and a vibration component, and the warning element is electrically connected to the controller. If the controller detects the radiation of the weather radar, it sends a signal to the warning portion 3, and the warning element of the warning portion 3 sends an externally observable signal to remind the flight personnel to turn off the weather radar.

[0029] When the preferred embodiment of the present invention is working, the sensing device receives the aircraft weather radar signal and transmits it to the controller. The controller determines whether the signal meets the preset range. If the signal meets the preset range, the controller notifies the warning element to send a warning message to the outside. The aircraft baton of the present application integrates a detection device and a warning device, upgrading an ordinary light baton to a composite baton that can be used for aircraft weather radar radiation detection and warning. By using this aircraft baton, ground control personnel can be informed of the radiation status of the aircraft weather radar. At the same time, the warning information can also be received by the flight personnel, reminding them to check and turn off the weather radar, so as to avoid excessive radiation to the ground control personnel and protect their physical and mental health.

[0030] like Figure 2 As shown, in some embodiments of the present invention, the sensing device includes an airborne meteorological radar radiation detection mechanism. The radar antenna in the nose radome sweeps back and forth left and right when working, and emits X-band pulse signals. It has a strong electromagnetic radiation capability, and therefore an airborne meteorological radar radiation detection mechanism is required to perform radiation monitoring; the airborne meteorological radar radiation detection mechanism includes a receiving component and an amplifying component that are interconnected. The receiving component is used to receive electromagnetic radiation information at the nose and transmit it to the amplifying component. The amplifying component amplifies the above information to a level that can be distinguished by the controller. The amplifying component is also connected to the controller to output the amplified electromagnetic radiation information to the controller for subsequent distinction by the controller.

[0031] In some embodiments of the present invention, the receiving component includes an antenna, a limiter, a filter and a radio frequency detector connected in sequence, and the radio frequency detector is connected to the amplifying component. The antenna is used to receive electromagnetic radiation signals; the function of the limiter is to limit the amplitude of the signal received by the antenna to a certain range when it is output. According to the provisions of the International Telecommunication Union (ITU), airborne weather radars can operate at 9345±30MHz and 9375±30MHz in the X-band and 5350~5470MHz in the C-band (design center frequency 5400MHz), and currently airlines generally use airborne weather radars in the X-band. Therefore, the filter of this embodiment uses an ultra-high frequency bandpass filter, and the filtering range can be set to 9000~9500MHz. The setting range is relatively wide and suitable for weather radars of all civil aviation models; finally, the signal is transmitted to the amplifying component through the radio frequency detector. The function of the receiving component is to process and convert the received electromagnetic radiation signal into an electrical signal, which is convenient for the amplifying component to amplify and the controller to detect.

[0032] In some embodiments of the present invention, the amplification component includes a multi-stage amplifier, which includes several stages of amplifiers such as a preamplifier, a first-stage amplifier, and a second-stage amplifier. The signal is finally amplified by about 80db to facilitate voltage detection; the last stage of the multi-stage amplifier is electrically connected to the controller, and the amplified electrical signal is transmitted to the controller for detection.

[0033] In some embodiments of the present invention, the controller includes a voltage comparator and a counter, and the counter is connected to the warning unit 3. The reference voltage used for comparison by the voltage comparator is 2V, which is provided by a voltage stabilizing diode; the reference voltage is set to 2V because the Federal Aviation Administration (FAA) of the United States issued an advisory circular AC 20-68B in 1980, which mentioned that the average energy density of electromagnetic radiation of weather radar that the human body can tolerate should not be greater than 10mw / cm 2 , according to the power amplitude conversion, the peak-to-peak value Vp-p of the sine wave corresponding to 10mW under 50Ω impedance is 2V; if the pulse amplitude of the received signal is greater than 2V, the voltage comparator will have an output, otherwise there will be no output. By adjusting the reference voltage of the voltage comparator, the working distance of the airborne meteorological radar radiation detection mechanism can be adjusted, and the clutter interference signal can be filtered out at the same time.

[0034] The output signal of the voltage comparator is counted by the pulse counter. When at least 10 pulse signals are counted within 3 seconds, the output signal is sent to the warning element. The reason for using 10 pulse signals is:

[0035] If the flight crew forgets to turn off the radar after the plane lands, as long as the system switch and wind shear switch on the radar control panel are not in the OFF position, the radar will work during the taxiing process and the antenna beam will be scanning all the time.

[0036] Taking Honeywell's RDR-4B weather radar as an example, the main lobe width of the radar antenna beam is 3.5 degrees. When the aircraft is taxiing and aligning itself with the airport reception personnel, the number of pulses that the baton can receive is estimated as follows:

[0037] 1) The radar works in meteorological mode, with a pulse repetition frequency of 190 Hz. There are two pulses, long and short, in each transmission cycle. The radar antenna sweeps from left to right once every 1 second. The baton can receive about 7 pulses in 1 second:

[0038] Number of received pulses = 190 * 2 * 3.5 / 180 = 7.4 (pieces)

[0039] 2) The radar works in wind shear mode, with a pulse repetition frequency of 3000 Hz. There are 64 identical pulses in each transmission cycle. The radar antenna sweeps from left to right once every 2 seconds. The number of pulses that the baton can receive in 2 seconds is about 3700:

[0040] Number of received pulses = 3000 * 64 * 3.5 / 180 = 3733.3 (pieces)

[0041] 3) The radar works in weather / wind shear mode (no wind shear is detected), and the weather mode takes 2 / 3 seconds and the wind shear mode takes 1 second for each 45-degree sweep. From left to right, it is a full weather mode sweep, and each sweep takes 8 / 3 seconds. The same estimation method is used above, and the number of pulses received by the baton in 8 / 3 seconds is also about 7. From right to left, it is an alternating sweep of weather and wind shear modes, and each sweep takes 10 / 3 seconds. The same estimation method is used above, and the number of pulses received by the baton is more than 3,000.

[0042] It should be noted that since the aircraft is close to ground personnel, the baton will inevitably receive sidelobe signals from the radar antenna beam, causing the number of pulses received by the baton during the antenna sweep to be far greater than the above estimate.

[0043] Taking all the above into consideration, no matter how the aircraft weather radar works on the ground, the lower limit of the counting threshold is 10 pulse signals at a 3-second time interval (that is, the number of counted pulse signals reaches 10 within a 3-second time interval), which is sufficient to prove that the commander is being scanned by the aircraft weather radar.

[0044] In some embodiments of the present invention, the warning part 3 includes a lighting component, a buzzer component and a vibration component, and the lighting component includes a flashing array composed of red and blue lamp beads; specifically, the warning part 3 is divided into two parts, the upper part is about 1 / 4 to 1 / 3 of the length, and is a blue light indicator, and the lower part is about 2 / 3 to 3 / 4 of the length, and is a red light indicator. During normal command work, the red indicator light on the baton is stably lit for commanding the aircraft, and the airborne weather radar radiation detection mechanism in the baton is powered on and works; when the baton detects electromagnetic radiation from the aircraft radar, the red and blue indicator lights flash alternately at high frequencies, and the buzzer component sounds, and the baton vibrates to remind the ground command personnel.

[0045] In some embodiments of the present invention, a reset switch 21 and a control switch 22 are provided on the casing of the detection control unit 2. The reset switch 21 is used to reset the warning unit 3 and return to a normal working state after sending a warning signal; the control switch 22 is used to control the detection control unit 2 and the warning unit 3 to manually shut down the airborne meteorological radar radiation detection mechanism after an alarm occurs, and can be used to turn on and off the normal command function of the baton.

[0046] In some embodiments of the present invention, the control switch 22 includes ON, OFF and TEST positions of sliding control, which control the sensing device, the controller, the switch of the warning part and the detection of the warning part. When the baton works normally, the switch is set to the ON position, and the red indicator light at the warning part 3 of the baton is stably lit, which is used to command the aircraft to use, and the sensing device in the baton is powered on and works; when the baton detects the electromagnetic radiation of the aircraft weather radar, the warning part 3 sends out a warning signal, and the red and blue indicator lights flash alternately at high frequency, and the buzzer sounds and the baton vibrates. Once the warning function is activated, the warning signal will not stop, even if the flight personnel turns off the aircraft weather radar at this time. Only when the aircraft commander sets the control switch 22 to the OFF position or presses the reset switch 21 can the warning signal output be stopped. The purpose of this design is to lock the warning state. Before using the baton, set the control switch 22 to the TEST position and keep it, and the functional output of the light, buzzer and vibration of the warning part 3 can be checked. Specifically, the OFF position and the ON position of the control switch 22 are fixed positions. When the switch is in these positions, the switch will not move without external force.

[0047] In some embodiments of the present invention, a spring structure is provided at the TEST position of the control switch 22 to achieve automatic resetting after the TEST position detection is completed. After the control switch 22 is set to the TEST position, it needs to be held with force. When the user releases his hand, the switch automatically returns to the ON position through the action of the spring. The purpose of this design is to prevent the TEST position from being accidentally touched, causing a false alarm.

[0048] In some embodiments of the present invention, a rechargeable battery is provided in the handheld part 1 for providing the electrical energy required by the aircraft baton. A charging port 11 and a charging indicator light 12 are provided on the outer shell of the handheld part 1 for convenient charging and indicating the power status.

[0049] The working process of the present invention is as follows: the aircraft baton includes a hand-held part 1, a detection control part 2 and a warning part 3 which are arranged in sequence. The hand-held part 1 is used for ground commanders to hold. The detection control part 2 detects the radiation state of the weather radar of the commanded aircraft through its internal sensing device. The controller determines whether the signal meets the preset range. If the signal meets the preset range, the weather radar is not turned off, and a signal is sent to the warning part 3. The warning element of the warning part 3 sends an externally observable signal, such as red and blue indicator lights flashing alternately at high frequency, to remind the flight personnel to turn off the weather radar.

[0050] In summary, an embodiment of the present invention provides an aircraft baton with an airborne weather radar radiation alarm function, which integrates a detection device and a warning device, and upgrades an ordinary light baton into a composite baton that can be used for aircraft weather radar radiation detection and warning. By using this aircraft baton, ground control personnel can be informed of the radiation conditions of the aircraft weather radar. At the same time, the warning information can also be received by the flight personnel, reminding them to check and turn off the weather radar, thereby avoiding excessive radiation to the ground control personnel and ensuring their physical and mental health.

[0051] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An aircraft baton with an airborne weather radar radiation alarm function, characterized in that: include: Handheld part; A detection control unit, the detection control unit is connected to one end of the handheld unit, a sensing device and a controller are arranged in the detection control unit, and the sensing device is electrically connected to the controller; An alarm part, the alarm part is connected to an end of the detection control part facing away from the handheld part, the alarm part is provided with an alarm element, and the alarm element is electrically connected to the controller; The sensing device receives the aircraft weather radar signal and transmits it to the controller. The controller determines whether the signal is within a preset range. If the signal is within the preset range, the controller notifies the warning element to send a warning message to the outside.

2. The aircraft baton with airborne weather radar radiation alarm function according to claim 1, characterized in that: The sensing device comprises an airborne weather radar radiation detection mechanism, and the airborne weather radar radiation detection mechanism comprises a receiving component and an amplifying component which are connected to each other, and the amplifying component is also connected to the controller.

3. The aircraft baton with airborne weather radar radiation alarm function according to claim 2, characterized in that: The receiving component comprises an antenna, a limiter, a filter and a radio frequency detector which are connected in sequence, and the radio frequency detector is connected to the amplifying component.

4. The aircraft baton with airborne weather radar radiation alarm function according to claim 2, characterized in that: The amplifying component includes a multi-stage amplifier, and the last stage of the multi-stage amplifier is electrically connected to the controller.

5. The aircraft baton with airborne weather radar radiation alarm function according to claim 1, characterized in that: The controller includes a voltage comparator and a counter, and the counter is connected to the warning part.

6. The aircraft baton with airborne weather radar radiation alarm function according to claim 1, characterized in that: The warning part includes a light component, a buzzer component and a vibration component, and the light component includes a flashing array composed of red and blue lamp beads.

7. The aircraft baton with airborne weather radar radiation alarm function according to claim 1, characterized in that: A reset switch and a control switch are provided on the housing of the detection control unit. The reset switch is used to reset the warning unit, and the control switch is used to control the sensing device, the controller and the warning unit.

8. The aircraft baton with airborne weather radar radiation alarm function according to claim 7, characterized in that: The control switch includes an ON position, an OFF position and a TEST position of slide control, and controls the sensing device, the controller, the switch of the warning part and the detection of the warning part.

9. The aircraft baton with airborne weather radar radiation alarm function according to claim 8, characterized in that: A spring structure is provided at the TEST gear position to achieve automatic resetting after the TEST gear position detection is completed.

10. The aircraft baton with airborne weather radar radiation alarm function according to claim 1, characterized in that: A rechargeable battery is arranged in the handheld part, and a charging port and a charging indicator light are arranged on the outer shell of the handheld part.

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