JPH07277293A - Flight data display device of hang glider or paraglider - Google Patents

Abstract

PURPOSE:To enable a rider to view flight data while in a stationary position by producing signals of data about the flight of a hang glider or a paraglider, converting the signals into optical signals, and projecting the signals for display into a viewing field ahead of a power-supply-equipped helmet worn by the rider. CONSTITUTION:A flight data display device comprises a signal generator, display portions for the right and left eyes, a battery, and an arithmetic processing unit which performs arithmetic on output signals of a converter producing signals of the data required for control and which outputs the signals to the display portions. Each of the display portions comprises a display 14 that emits visible light for display at the input of display signals and an optical portion 16 that focuses a virtual image 15 at a far position for easy viewing. A coating for enhancing reflectivity is provided over the portion of the inner surface of a front shield 10 on which the light emitted by the display 14 falls, and the coating serves as a semitransparent mirror. The rider 2 can view the data required for control in front of him through the front shield 10, while watching the landscape.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flight data display device for optically projecting flight data of a hang glider or a paraglider so that an operator of the hang glider or the like can visually observe the data in the forward field of view with visible light. In particular, the present invention relates to a flight data display device capable of displaying the flight data in the field of view of a helmet worn by an operator such as a hang glider.

[0002]

2. Description of the Related Art In order to fly a hang glider or a paraglider, data such as flight speed (air forward speed) flight altitude and ascending / descending speed are required. A speedometer (anemometer), altimeter, Measuring instruments such as lifts are used. Some of these instruments display the above data singly or in combination, and are used by being attached to a body part of a hang glider or a body part of an operator, that is, an arm or a leg.

During flight of a hang glider or a paraglider, it is necessary to always observe the surrounding situation for flight safety, and it is difficult to see the data while observing the surrounding situation. In particular, in an emergency such as when the flight direction needs to be changed urgently, it is necessary to divert the line of sight from the surrounding observation and to move the arm etc. in order to see the data, and the posture of the glider may change. Was dangerous to.

Therefore, it is conceivable to provide data projection means on the helmet worn by the operator and project the data within the field of view. As a prior art related to this, Japanese Patent Laid-Open No.
1-132600, JP-A-63-256706, JP-A-63-303107, JP-A-64-
Japanese Patent No. 49016, Japanese Patent Application Laid-Open No. 3-39924, Japanese Patent Application Laid-Open No. 5-85446, and Japanese Utility Model Application Laid-Open No. 3-52771 disclose in the forward field of view of a helmet worn by an operator of an aircraft, an automobile or a motorcycle. , A display device for displaying data is disclosed.

In the above prior art, it is intended to display complicated display data, and the display source is mainly C
RT is used, and a complicated optical system including a prism and a large number of lenses is used.

On the other hand, in displaying data of a hang glider or a paraglider, it is necessary to display flight data such as flight speed (air forward speed) and flight altitude in the field of view with a small and simple structure. The display device needs special consideration for size reduction and weight reduction.

In the above-mentioned prior art, most of the signal transmission from the body side to the helmet is performed by a cord connected by a connector. For aircraft,
The cockpit is indoors, the operator is not exposed to the open air, the helmet is not removed in principle during flight, and the cord connected with the above connector does not cause any problems. .

However, in the case of a hang glider or a paraglider, the operator is exposed to the air current, and therefore the cord is also exposed to the air current, so that there is a risk that the cord is wound around the operator, and in particular, In an emergency such as an emergency landing, it is very dangerous that the aircraft and helmet are connected by a cord.

As an improvement on this point, Japanese Patent Laid-Open No. 2-2
In Japanese Patent Publication No. 83584, a transmitter is placed on the vehicle side to transmit in a cone-shaped range covering a helmet, and a receiver and a power source are placed on the helmet side to wirelessly communicate between the vehicle and the helmet. In this case, the occupant is freed from the inconvenience caused by the code, but in the case of hang glider or paraglider flight, the range of motion of the driver's head is larger than in the case of a motorcycle, and reception is not possible. There is a problem that disappears.

[0010]

SUMMARY OF THE INVENTION Therefore, the present invention is designed so that the flight data of a hang glider or a paraglider is projected and displayed in the forward field of view of a helmet worn by an occupant so that the operator can view the flight data. It is an object of the present invention to provide a flight data display device capable of improving the safety of flight without the need to change the aircraft or move the body.

[0011]

One of the flight data display devices of the present invention for solving the above-mentioned problems is a signal generating means for measuring data concerning flight of a hang glider or a paraglider and generating a signal, Converting means for converting the data signal of the signal generating means into an optical display signal by visible light, and projecting the optical display signal which is the output of the converting means into the front view of the helmet worn by the operator of the hang glider or paraglider. The projection means for displaying and the power supply for each means are attached to a helmet worn by the operator.

In the flight data display device of the present invention, since the signal generating means, the converting means and the projecting means are all mounted on the helmet, it is necessary to have a compact and simple structure. Is a light emitting diode display, the projection means is a plastic semi-reflective concave mirror, or a combination of a Fresnel lens and a semi-reflective flat mirror, and the power source is a rechargeable secondary battery. Alternatively, a disposable primary battery may be used.

Another of the flight data display devices of the present invention is for an operator with advanced maneuvering skills, in which case the flight time can be several hours, The data need to be more accurate because the flight data does not change even if the head of the operator changes, and the helmet needs to be lighter.

However, when the signal generating means is incorporated in the helmet, when the operator changes the direction of the head, the direction of the air flow and the direction of the intake of the air flow do not match, and the flight There is an error in the data related to. In order to deal with these problems, in another one of the flight data display devices of the present invention, the signal generating means is used to change the air flow direction of the body part of the hang glider or the paraglider, or the arm or leg of the operator. Attached to a small number of places, a wireless transmitter for transmitting the data signal from the signal generating means integrally with the signal generating means, and a power source for these are provided, and on the helmet side worn by the pilot, the A radio receiver for receiving a radio signal from a radio transmitter, a conversion means for converting a data signal output from the radio receiver into an optical display signal of visible light, and an optical display signal of the conversion means for the operator. It is characterized in that projection means for projecting and displaying in the forward field of view and a power supply for these are provided.

[0015]

[Operation] According to one of the above flight data display devices of the present invention, in the flight of a hang glider or a paraglider,
Flight-related data is measured by a signal generating means provided on the helmet worn by the operator, and a data signal is output. This data signal is converted into an optical display signal of visible light by the conversion means, and is further projected and displayed in the front view of the helmet by the projection means.

According to another one of the flight data display devices of the present invention, in the flight of a hang glider or a paraglider, the change of the air flow direction during the flight among the airframe part of the hang glila or the paraglider or the body part of the operator is performed. Flight-related data is measured by signal generating means attached to a small portion, and a data signal is output. This data signal is wirelessly transmitted to the helmet by the wireless transmitter and received by the wireless receiver provided on the helmet. Then, the flight-related data signal output by the wireless receiver is converted into a visible light signal by the conversion means, and is projected and displayed in the forward field of view of the helmet by the projection means.

In each of the above-mentioned flight data display devices according to the present invention, the data relating to the flight measured by the signal generating means are mainly the flight speed (air forward speed), the flight altitude, and the ascending / descending speed.

Other data relating to flight includes azimuth, time, elapsed time, glide ratio, bank angle, temperature, time history of altitude, alarm, etc., but these data are acquired separately by measuring means or by this. And the signal generation means in the flight data display device of the present invention in cooperation with each other, and measurement can be performed, and the result can be displayed by the projection means or a separately provided display device.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the flight data display device of the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a state where an operator 2 who operates the paraglider 1 is wearing a helmet 3 incorporating a flight data display device 4.

FIG. 2 is a view showing a state in which the operator 2 who operates the hang glider 5 is wearing the helmet 3 incorporating the flight data display device 4. FIG. 3 is a front view of the helmet 3 incorporating the flight data display device 4, and FIG. 4 is a sectional view taken along the line AA of FIG. These Figure 3,
In FIG. 4, the flight data display device 4 includes a signal generator 6
And a left-eye display unit 7, a right-eye display unit 8, and a battery 9.

The signal generator 6 outputs data necessary for operating the paraglider 1 and the hang glider 5, that is, a converter for generating signals such as air forward speed, flight altitude, and ascending / descending speed, and an output signal of the converter. It is composed of an arithmetic processing circuit that performs arithmetic processing and outputs a display signal to the display units 7 and 8 (details thereof will be described later with reference to FIGS. 7 and 8).

When the display signals are input, the display units 7 and 8 are
A display 14 for emitting visible light, for example, an LED 7-segment number display, an LED bar graph display, etc., and a virtual image 15 are formed at a distance of 1 m or more from the eye for the emission image of the display 14, and the operator 2 includes an optical unit 16 for making the data of the display 14 easy to see. Optical part 16
Is composed of a dark box for blocking external light and a lens system such as a convex lens or a Fresnel lens. Front shield 1
In the part of the inner surface of 0 where the light emitted from the display 14 hits,
It has a coating to increase the reflectance and acts as a semi-transparent mirror.

With the flight data display device 4 constructed as described above, the operator 2 can pass through the front shield 10 and
While looking at the scenery in front, you can see the data necessary for maneuvering in the scenery in front. Since the images of these data are at a distance of 1 m or more from the eyes, the operator does not need to adjust the viewing distance and can easily see the data while viewing the landscape.

Since the luminescent image of the display 14 looks at the virtual image 15 inverted by the front shield 10, it is preferable to prepare the display 14 that originally emits the inverted luminescent image. If it is difficult to prepare a device that emits an inverted luminescent image, a total reflection mirror for inversion is added to the optical unit 16 so that the total reflection mirror and the front shield 10 can be combined. It is good to make it reflect twice.

FIG. 5 is a front view showing an example of a method of attaching the flight data display device 4 to the outside of the helmet 3, FIG.
Is a side view thereof. The configuration may be the same as that of FIGS. 3 and 4, but the configuration of FIGS. 5 and 6 is slightly different,
The changed parts will be described. Left eye display 7
A and the right-eye display unit 8A include a display 14 and a dark box 18 for blocking external light.

The light emission data of the display 14 is the concave semi-transparent mirror 1.
It is reflected at 7 and enters the eye. Here, by the concave semi-transparent mirror 17, the virtual image 15 of the emission data is obtained as in the example of FIGS.
Is tied at a distance of 1 m or more from the eye, and the eye sees the virtual image 15. At the same time, the front view can be seen through the concave semitransparent mirror 17. Therefore, the operator 2 can see the data necessary for the operation in the front view. In addition, the left eye display unit 7, 7A and the right eye display unit 8,
The display contents of 8A are displayed by dividing the data required for the above-mentioned operation into right and left as appropriate.

FIG. 7 is a front view of a portion of the signal generator 6 described above, and FIG. 8 is a sectional view taken along the line BB of FIG.
At four pressure transducers 11A, 11B, 11C, 1
The 1D and the arithmetic processing circuit 12 are mounted on the substrate 23. The four pressure transducers are a pressure transducer 11A for obtaining an altitude signal and a pressure transducer 1 for obtaining a forward speed signal.
1B and a pressure transducer 11C for obtaining a lifting speed signal
And a pressure converter 11D for obtaining the descending velocity signal, and pipes 19 and 20 for introducing respective atmospheric pressures.
21, 22 are arranged toward the atmosphere.

The air on the surface of a moving object moves with the object due to the viscosity of the air. The air layer in this portion is called the boundary layer. The flight speed of the hang glider 5 and the paraglider 1 is up to about 10 m / sec, and the thickness of the boundary layer in the pipe portion is about several mm. Therefore, the pipes 19, 2
The openings at the tips of 0, 21, 22 must be in the open air outside the boundary layer.

The static pressure pipe 19 is a pipe that is opened to the left and right (or up and down) in order to take in atmospheric pressure that does not change even when the hang glider 5 and the paraglider 1 move forward and laterally. The forward pressure pipe 20 is a pipe having an opening facing forward. The upper booster pipe 21 is a pipe having an opening facing upward. The lower step-down pipe 22 is a pipe whose opening portion faces downward.

As described above, the pressure converter 11A is for obtaining an altitude signal, and the atmospheric pressure from the static pressure pipe 19 is applied to one surface with the diaphragm 39 as a boundary, as shown in FIG. , The other side is hermetically sealed to create a vacuum.

The pressure transducers 11B, 11C and 11D for obtaining the signals of the forward speed, the ascending speed and the descending speed have the pipes 20, 21 and 2 on one side with the diaphragm 39 as a boundary.
The pressure from 2 is applied, and the other surface becomes the atmospheric pressure of the air without flow inside the helmet 3 through the pores (not shown).

These pressure converters 11A, 11B, 11
C and 11D electrically measure the deviation of the diaphragm 39 due to the pressure difference between the two surfaces of the diaphragm 39, and convert the pressure into an electric signal. There are various methods for measuring the displacement of the diaphragm 39, but a semiconductor pressure transducer in which a semiconductor thin film is used as a diaphragm and a semiconductor bridge circuit is incorporated in the thin film is preferable. Of course, the present invention is not limited to this, and another system may be used. Figure 9
FIG. 3 is a functional block diagram of the signal generator 6. FIG. 9 includes three display systems of air forward speed, flight altitude, and ascending / descending speed.

First, the display system of the air forward speed will be described. The total forward pressure is introduced by the forward pressure pipe 20 into one surface of the diaphragm 39 of the pressure converter 11B, and the other surface is at atmospheric pressure. Therefore, the diaphragm 39 is displaced according to the pressure difference between the forward total pressure and the atmospheric pressure, and the electric signal proportional to the displacement is output from the pressure converter 11B.

[0034] ^{Pf-P = ρVf 2/2} ............... (1) where, Pf = forward total pressure, P = atmospheric pressure, [rho = air density Vf = forward speed, the forward total pressure, and the atmospheric pressure , The forward speed is given by equation (1). ΡVf from the pressure converter 11B
Electrical signal proportional to the ^2/2 is output.

In the amplifier circuit 25B, the output of the pressure converter 11B is amplified. The digital calculator 26 is composed of, for example, a one-chip microcomputer, and is functionally A
The -D converter 27B converts the analog signal into a digital signal. In the calculation unit 28B, ρVf ² /
A signal proportional to 2 is multiplied by 2 / ρ, and square root calculation is performed to output a signal proportional to Vf. The 7-segment conversion calculator 29B converts the numerical value of Vf into a display signal, which is amplified by the 7-segment driver 31B, and then the forward speed is numerically emitted by the 7-segment numeral display 32B.

Next, the altitude display system will be described. In the pressure converter 11A, static pressure is introduced from the static pressure pipe 19,
It is added to one side of the diaphragm 39. The other surface of the diaphragm 39 faces the closed vacuum chamber. Therefore, the pressure converter 11A outputs an electric signal proportional to the differential pressure between the static pressure and the vacuum. The relationship between static pressure (atmospheric pressure at a certain altitude) and altitude is, for example, JIS-W-0201.
As specified in the standard atmosphere table, it has a non-linear functional relationship.

The function is built in the arithmetic unit 28A in advance, the output of the pressure converter 11A according to the static pressure from the pipe 19 is amplified by the amplifier circuit 25A, and the analog signal is digitally converted by the AD converter 27A. After conversion into a signal, if input to the arithmetic unit 28A, the altitude signal at that time can be output. The functions from the 7-segment conversion calculation unit 29A to the 7-segment numeral display 32A are the same as those in the case of the forward speed display.

Next, the display system of the ascending / descending speed will be described. A pressure converter 11D into which the total down pressure is introduced from the lower step-down pipe 22 and a pressure converter 11C into which the total increase pressure is introduced from the up pressure pipe 21 are used. The respective outputs are amplified by the amplifier circuits 25D and 25C, and the A / D converter 27D,
The analog signal is converted to a digital signal by 27C and then input to the arithmetic unit 28C. In this calculation unit 28C, the sign of the input from the pressure converter 11D for descending is changed and both inputs are added.

The relationship between the total pressure at the inputs of the pressure converters 11C and 11D and the output voltage is the same as in the equation 1, and the calculation unit 2
In 8C, a signal proportional to the ascending / descending speed can be output by performing square root calculation after multiplying 2 / ρ. The functions from the 7-segment conversion calculation unit 29C to the 7-segment numeral display 32C are the same as in the case of the forward speed display.

In the above-described elevation speed display, two pressure transducers 11C and 11D having the structure shown in FIG. 8 are used.
As shown in FIG. 5, in each chamber on both sides of the diaphragm 39, the total ascending pressure from the ascending pressure pipe 21 and the lower pressure reducing pipe 22 are provided.
It is also possible to construct the pressure converter 34 having the pressure port 40 for introducing the total pressure falling from the pressure converter 40 and to use only one pressure converter 34. In this case, the calculation unit 28C
It is possible to omit the operation of adding the two inputs by changing the sign of one of the inputs. Further, since the ascending / descending speed is a derivative of altitude, it is possible to obtain the ascending / descending speed signal without using a pressure transducer for the ascending / descending speed.
In this case, in FIG. 9, the output of the pressure converter 11A for inputting the static pressure is amplified by the amplifier circuit 25A, the analog signal is converted into a digital signal by the AD converter 27A, and then the calculation unit 28A. , Obtain the altitude signal as described above. At the same time, the elevation signal is obtained by differentiating the altitude signal in the arithmetic unit 28A. This ascending / descending speed signal is added to the 7-segment conversion calculation unit 29C and thereafter to display the ascending / descending speed. Of course, in this case, the portion before the arithmetic unit 28C is unnecessary.

Next, when the altitude of the altitude changed from a certain altitude is displayed, for example, when the hang glider 5 or the paraglider 1 starts from a certain altitude point and flies, the altitude of the starting point and the altitude during flight are compared. The case of displaying the difference, that is, the relative altitude will be described. The display altitude switch 33 in FIG. 3 is a switching button for this purpose, and is used for switching the display between the absolute altitude and the relative altitude.

When the absolute altitude is displayed, the arithmetic unit 28A shown in FIG. 9 is used.
Memorizes while updating the absolute altitude, which changes from moment to moment. When the display altitude switch 33 of FIG. 3 is pressed to switch to the relative altitude display, the arithmetic unit 28A of FIG. 9 stops updating even if the altitude changes while storing the absolute altitude at the time of switching. Then, in the calculation unit 28A, the pressure conversion unit 11
From the absolute altitude signal sent from A, a value obtained by subtracting the stored absolute altitude value at the time of display switching, that is, the relative altitude is calculated and output. With this, the relative altitude can be displayed.

Next, another embodiment will be described. In the integrated flight data display device 4 incorporated in the helmet 3 described above, when the pilot 2 changes the direction of the head, the direction of the pressure intake ports of the pipes 20, 21, 22 shown in FIG. 7 changes. Therefore, an error occurs in the display of the forward speed and the vertical speed.

In order to avoid this error, the signal generator 6 is taken out from the helmet 3 and placed separately in a place where the direction changes little during flight, and the signal is wirelessly transmitted by a wireless transmitter to the helmet 3 side. Add a wireless receiver to receive. This is called a separate type flight data display device 4A.

FIG. 11 shows a separate type flight data display device 4A.
Is attached to the paraglider 1, and FIG. 12 is also an example attached to the hang glider 5. The flight data display device 4A is divided into a signal transmission unit 35 and a reception display unit 36. In either case of the hang glider 5 or the paraglider 1, the signal transmitter 35 should be mounted at a place where the wind direction does not change much during flight, but the harness 41 of the paraglider 1 of FIG. It is not limited to the horizontal portion 43 of the control bar 42 of the hang glider 5.

As shown in FIG. 13, the signal transmitting section 35 in the separated flight data display device 4A includes a signal generator 6
And a transmitter 37 and a battery 9. The reception display unit 36 includes a receiver 38, a left-eye display unit 7, a right-eye display unit 8, and a battery 9, and is incorporated into the helmet 3 or attached to the outside of the helmet 3. .

The function of the signal generator 6 is not different from that of the integrated flight data display device 4. The signal generated by the signal generator 6 is input to the transmitter 37. The transmitter 37 and the receiver 38 may use radio waves, infrared rays, or ultrasonic waves as a wireless medium. A signal for display is wirelessly transmitted from the transmitter 37 and transmitted to the receiver 38. A signal for display is taken out from the receiver 38 and sent to the left eye display section 7 and the right eye display section 8. The display units 7 and 8 are the same as those in the integrated flight data display device 4. The sending and receiving distances of the transmitter 37 and the receiver 38 are about 1 m.

The flight data display device of each of the above-mentioned embodiments displays flight-related data such as flight speed (forward speed to ground), flight altitude, and ascending / descending speed. There are time, elapsed time, gliding, bank angle, temperature, time history of altitude, alarm, etc., and these data can be acquired by a separately installed measuring means or by cooperation of this with the signal generator 6 of the embodiment. Measurement is performed, and the measured data signal is processed by using the digital arithmetic unit 26 shown in FIG. It is good to

That is, regarding the azimuth, a sensor for detecting the azimuth such as a gyro, rate gyro, magnetic compass, fixed needle, attitude azimuth reference device, or the like is used as the body part of the hang glider 1 or the paraglider 5 or the helmet 3 of the operator.
Attached to the air conditioner, the direction in flight is detected, the detected signal is processed by the digital calculator 26 shown in FIG. 9, and this is separately attached to the body part of the paraglider 1 or the hang glider 5 to display the alphabet (shown in the figure. By omitting), N, S, E, W are combined and displayed, for example, NNE (north-northeast).

With respect to the time, since the digital calculator 26 originally has a clock function, it is possible to display the time by adding a setting function like a general digital clock by utilizing this.

Regarding the elapsed time, the digital calculator 2
By using the clock function of 6, it is possible to switch and display the flight time, the average speed of flight, etc. by a display switch added separately. The glide ratio can be displayed as the ratio of the forward speed displayed by the 7-segment numeral display 32B in FIG. 9 and the ascending / descending speed displayed by the 7-segment numeral display 32C.

Regarding the bank angle, a tilt angle sensor that electrically outputs the tilt angle using a weight is attached to the body portion of the paraglider 1 or the hang glider 5, the bank angle is detected, and the bank angle is digitally calculated. Processing is performed using the display device 26, and this is processed by the 7-segment number display devices 32A, 3
It can be displayed using either 2B or 32C.

Regarding the temperature, a display switch equipped with a temperature sensor such as a thermistor is installed at a place where the wind direction of the paraglider 1 or the hang glider 5 changes little during flight, the temperature is detected, and the detected temperature is separately added. Can be displayed.

The altitude time history can be displayed by a separately added display switch by measuring the altitude signal output from the arithmetic unit 28A using the clock function of the digital arithmetic unit 26.

Regarding the alarm, the sounding body was attached to the body part of the helmet 3 of the operator, the paraglider 1 or the hang glider 5, and the flight speed, the flight altitude, the ascending / descending speed, etc. exceeded the set values by the digital calculator 26. A warning sound is generated when is detected.

[0056]

As described above, according to the present invention, since the flight data of the hang glider or the paraglider is projected and displayed in the forward field of view of the operator, the operator can change the attitude in order to see the flight data. And there is no need to move or move the body, improving flight safety.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which a pilot operating a paraglider is wearing a helmet incorporating a flight data display device.

FIG. 2 is a diagram showing a state in which a pilot who operates a hang glider is wearing a helmet incorporating a flight data display device.

FIG. 3 is a front view of a helmet incorporating a flight data display device.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a front view showing an example of a method of attaching the flight data display device to the outside of the helmet.

FIG. 6 is a side view of FIG.

FIG. 7 is a partial front view of a signal generator in the flight data display device.

FIG. 8 is a sectional view taken along line BB in FIG.

FIG. 9 is a functional block diagram of a signal generator.

FIG. 10 is a cross-sectional view showing another example of the pressure converter.

FIG. 11 is a diagram showing an example in which a separate flight data display device is attached to a paraglider.

FIG. 12 is a diagram showing an example in which a separate flight data display device is attached to a hang glider.

FIG. 13 is a functional block diagram of a separate type flight data display device.

[Explanation of symbols]

 1 Paraglider 2 Operator 3 Helmet 4,4A Flight Data Display 5 Hang Glider 6 Signal Generator 7,7A Left Eye Display 8,8A Right Eye Display 9 Battery 10 Front Shield 11A, 11B, 11C, 11D Pressure Transducer 12 arithmetic processing circuit 14 display 15 virtual image 16 optical part 17 concave semi-transparent mirror 18 dark box 19 static pressure piping 20 forward pressure piping 21 upper boost piping 22 lower step down piping 23 substrate 25A, 25B, 25C, 25D amplification circuit 26 digital calculator 27A, 27B, 27C, 27D A-D converter 28A, 28B, 28C, 28D operation part 29A, 29B, 29C 7 segment conversion operation part 31A, 31B, 31C 7 segment driver 32A, 32B, 32C 7 segment number indicator 33 Display altitude switch 34 Pressure converter 35 Signal transmission Part 36 receiving the display unit 37 the transmitter 38 receiver 39 diaphragm 40 pressure ports

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location G02B 27/02 Z

Claims (4)

[Claims] 1. A signal generating means for measuring data regarding flight of a hang glider or a paraglider and generating a signal, a converting means for converting a data signal of the signal generating means into an optical display signal by visible light, and the converting means. The projection means for projecting and displaying the optical display signal which is the output of the hang glider or the paraglider in the forward field of view of the helmet worn by the operator of the hang glider or the paraglider, and the power supply for each of the means described above, the helmet worn by the operator. A flight data display device for a hang glider or paraglider characterized by being attached to the. 2. A signal generating means for measuring data regarding flight of a hang glider or a paraglider and generating a signal, a radio transmitter for transmitting the data signal of the signal generating means, and a data signal for the signal generating means. A signal transmitter having a wireless transmitter, the signal generating means, and a power supply for the wireless transmitter, and changing the direction of airflow during flight of a body part of a hang glider or a paraglider, or a body part of an operator. A radio receiver for receiving radio waves transmitted by the radio transmitter, a conversion means for converting a data signal of the radio receiver into an optical display signal of visible light, and an output of the conversion means. A reception table including projection means for projecting and displaying a certain light display signal in the forward field of view of the helmet worn by the pilot, and a power supply for the wireless receiver and the conversion means. A flight data display device for a hang glider or a paraglider, wherein the indicator is attached to a helmet worn by the pilot. 3. The flight-related data signal includes a flight speed,
The flight data display device for a hang glider or a paraglider according to claim 1 or 2, which is a data signal of a flight altitude and a hoisting speed. 4. The flight-related data signal includes a flight speed,
In addition to data signals of flight speed and ascending / descending speed, at least one of bearing, time, elapsed time, glide ratio, bank angle, temperature, altitude time history, and alarm is provided. The measurement is made by the cooperation of this and the signal generating means, and the measured data signal is projected by the projection means in the forward field of view of the helmet worn by the operator or displayed on a separately provided display device. The hang glider or paraglider flight data display device according to claim 3.