JP2859406B2 - Injection type electronic device injection device and signal transmission method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] Signal transmission of a firing signal and an information signal at the time of injection in an injection device that emits an injection type electronic device that emits radio waves from an aircraft or the like, and an injection type electronic device injection device that performs the signal transmission In order to provide a signal transmission method capable of reducing the volume of an interface unit necessary for signal transmission, and to reduce the size of an injection-type electronic device, an injection-type electronic device that drives an internal circuit using a thermal battery as an internal power supply A device, a magazine for loading the injection-type electronic device and ejecting the injection-type electronic device by exploding explosives, and a start signal of a thermal battery and an information signal set in an internal circuit for the injection-type electronic device. And a control unit for transmitting an information signal following a start signal via a common signal line, and the injection-type electronic device is a thermal battery activated by the start signal. Is sent to the gunpowder in the magazine as an ignition signal.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of transmitting a firing signal and an information signal at the time of injection in an injection device that emits an electronic device that emits radio waves from an aircraft or the like, and an injection electronic device that performs the method. It relates to an injection device.

Such an injection-type electronic device is used for applications such as emitting radio waves for signs while falling in the air after the injection. With the rapid progress of LSI and microwave MMIC technology in recent years, the internal circuit of such an injection-type electronic device has been rapidly reduced in size. Therefore, in order to reduce the size of the entirety of the injection-type electronic device, it is necessary to further reduce the volume of a signal line portion for interfacing with the outside of the injection-type electronic device.

[Prior Art] As an injection device for injecting such an injection type electronic device,
2. Description of the Related Art Conventionally, there has been known a type in which an injection unit is loaded in a magazine, explosives contained in the magazine are exploded by a firing signal from a control device, and the explosive power is used to eject the explosive from an aircraft or the like.

On the other hand, for example, when an electronic device that emits a radio wave for a sign in a microwave band is set as an object to be ejected, information on radio wave emission conditions such as the altitude and speed of the base unit at the time of ejection is transmitted to an internal circuit of the ejection type electronic device. It is necessary to set to.
In addition, since such an injection-type electronic device performs microwave transmission, an internal power source having a large current capacity is required, and a thermal battery is generally used. This thermal battery needs to be ignited by giving a start signal immediately before injection.

As a result, at the time of injection of the injection-type electronic device, the start signal of the thermal battery and various information signals must be transmitted from the control device to the injection-type electronic device. Conventionally, for this signal transmission, signal lines are sent in accordance with the number of necessary signals, and signals are transmitted from the control device side of the injection device via each signal line.

[Problems to be solved by the invention] Conventionally, signal lines corresponding to the number of signals have been prepared.
It is necessary to prepare the volume of the interface section corresponding to the number of signal lines on the injection type electronic device side, and since this volume is large, the entire injection type electronic device can be downsized even if the internal circuit is downsized. Did not.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a signal transmission method capable of reducing the volume of an interface section necessary for signal transmission, and to reduce the size of an injection-type electronic device. It is in. It is another object of the present invention to provide an injection-type electronic device injection device that performs such a signal transmission method.

[Means for Solving the Problems] FIG. 1 is an explanatory view of the principle according to the present invention.

The signal transmission method of the injection-type electronic device according to the present invention includes, as one mode, an injection-type electronic device 11 that drives an internal circuit 16 using a thermal battery 14 as an internal power supply, and an injection-type electronic device.
A magazine section 12 for ejecting the injection-type electronic device 11 by exploding the explosive 15 with the 11 loaded, and a start signal of the thermal battery 14 and an information signal set in the internal circuit 16 for the injection-type electronic device 11. A control unit 13 for sending out by a common signal 17; the control unit 13 sends out an information signal following an activation signal via the common signal line 17; and the injection-type electronic device 11 is a thermal battery activated by the activation signal. Magazine part 12 using the electromotive force of 14 as an ignition signal
Is sent to the explosive 15 of the first embodiment.

Further, as another form of the signal transmission method of the injection-type electronic device injection device according to the present invention, in the above-described signal transmission method, the injection-type electronic device 11 includes a switch 19 for interrupting the transmission of the ignition signal, A reception completion determination unit 18 that determines reception completion is provided, and the transmission of the ignition signal to the magazine unit 12 is prohibited by the switch 19 until the reception completion determination unit 18 determines that the reception of the information signal is completed. Things.

An injection type electronic device according to the present invention for implementing the above-described signal transmission method includes an injection type electronic device 11 that drives an internal circuit 16 using a thermal battery 14 as an internal power supply, and the injection type electronic device 11 is loaded. A magazine section 12 for ejecting the injection-type electronic device 11 by detonating the explosive 15, and a common signal line for the start-up signal of the thermal battery 14 and the information signal set in the internal circuit 16 for the injection-type electronic device 11. A control unit for transmitting an information signal following a start signal via a common signal line 17;
From the signal line 20 that sends an ignition signal to the gunpowder 15 in the magazine section 12
Is provided, and the electromotive force of the thermal battery 14 activated by the activation signal is used as an ignition signal for the explosive of the magazine unit 12 via the signal line 20.
15 to be sent.

[Operation] First, the control unit 13 sends a start signal (firing signal) to the thermal battery 14 of the injection-type electronic device 11 via the common signal line 17.
Thus, the thermal battery 14 starts operating, and its electromotive force rises. Further, the control device 13 sends an information signal to the injection-type electronic device 11 via the common signal line 17 after sending the start signal. This information signal is received by the injection-type electronic device 11 and set in the internal circuit 16.

The electromotive force of the thermal battery 14 is given as an ignition signal to the explosive 15 of the magazine section 12 via a signal line 20. Therefore, when the electromotive force of the thermal battery 14 rises to a steady state, the magazine section 12 is generated by the electromotive force. Explosive is ignited, causing an explosion, whereby the injection-type electronic device 11 is ejected.

In another embodiment of the present invention, the ignition signal from the thermal battery 14 is given to the explosive 15 through the switch 19,
The switch 19 is open before the reception completion determination unit 18 makes the reception completion determination of the information signal, and is closed after the reception completion determination so that the ignition signal can be transmitted. This prevents the ejection type electronic device 11 from being erroneously fired before the transfer of the information signal.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows a main part of an injection device of an injection-type electronic device as one embodiment of the present invention, and FIG. 3 shows an overall configuration thereof. This injection-type electronic device is mounted on an aircraft or the like, and is for injecting the injection-type electronic device 3 that emits radio waves for signs or the like into the air. The injection-type electronic device 3 is shown in FIG. A plurality of units are loaded in the magazine 2 so as to be ejected into the air in response to a firing command from the control unit (programmer) 1.

In the figure, the injection device comprises a programmer 1 as a control device and a magazine 2 in which a plurality of injection electronic devices 3 are loaded. The programmer 1 manages the processing sequence of the entire injection apparatus, and supplies an information signal obtained from the external device 4 and a firing command signal to the injection-type electronic apparatus 3 through a common signal line 5. This information signal is information on radio wave emission conditions such as the altitude and speed of the base unit. The firing command signal corresponds to a start signal to the thermal battery 31 to be described later.

The magazine 2 is loaded with a scube (injection gunpowder) 21 together with the injection-type electronic device 3, and explodes the scube 21 to eject the injection-type electronic device 3 out of the machine. The scube 21 is provided with an electric bridge wire 22 which is an ignition filament, and is heated and ignited by receiving an ignition signal on the electric bridge wire 22 so that the explosive explodes.

The injection-type electronic device 3 includes a thermal battery 31 serving as an internal power supply, a reception completion determination unit 32 for an information signal, a switch 34, an electronic circuit 335 for microwave radio wave radiation, and the like. Thermal battery 3
1 has a filament 33 for ignition. The filament 33 is ignited by receiving a thermal battery activation signal, generates heat, and generates an electromotive force by a scientific reaction due to the generated heat. This electromotive force is supplied to the internal electronic circuit as a power source, and is also supplied as an ignition signal to the electric bridge line 22 of the scube 21 of the magazine 2 via the switch 3. Receiving completion judgment unit
A circuit 32 determines whether or not the reception of the information signal from the programmer 1 is completed. The circuit 32 receives the information signal via the signal line 5 to which the start signal to the filament 33 of the thermal battery 31 is sent. The received information signal is stored in the internal RAM via the reception completion determination unit. An open / close control signal is sent from the reception completion determination unit 32 to the switch 34, and the switch 34 is controlled to be off (open) before the reception completion determination and on (closed) after the reception completion determination.

Hereinafter, the operation of this embodiment will be described with reference to the time chart of FIG.

First, the programmer 1 sends out a firing signal to the injection-type electronic device 3 via the signal line 5. This firing signal is
The filament 33 is heated by this, the filament 33 is heated, the thermal battery ignites and generates heat, and the generated heat causes a chemical reaction to generate an electromotive force. This electromotive force is supplied to the internal circuit, but it takes some time for the electromotive force to rise, and for this reason, it takes some time until an electromotive force sufficient to drive a microwave transmitter or the like that requires large power is generated. However, the electromotive force for driving the weak power circuit such as the reception completion determination unit 32 and the internal RAM can be obtained from the thermal battery 31 even as early as after ignition.

Next, immediately after the transmission of the firing signal, the programmer 1 utilizes the time required for the thermal battery 31 to reach the steady state, and uses the same signal line 5 that has transmitted the firing signal, using the injection-type electronic device. 3 to send an information signal. This information signal is written in the internal RAM via the reception completion determination unit 32. As described above, the reception completion determination unit 32 and the internal RAM operate even with a weak power, and thus operate sufficiently with the weak power of the thermal battery 31 immediately after ignition.

When all the transfer of the information signal from the programmer 1 is completed, the reception completion determining unit 32 determines the completion of the reception of the information signal, and closes the switch 34 accordingly. This allows thermal batteries
The electromotive force of 31 is sent as an ignition signal to the scube 21 of the magazine 2 through the switch 34, and the electric bridge wire 22 is heated to ignite the explosive and cause an explosion. Due to this explosion, the injection type electronic device 3 is ejected from the mother machine into the air.

According to the above configuration, the volume of the interface unit can be reduced by using the signal for transmitting the emission signal and the information signal as a common signal line. According to the above injection sequence, the thermal battery 31 of the injection-type electronic device 3 generates a sufficiently large electromotive force immediately after the injection, so that the injection-type electronic device 3 starts the internal microwave circuit immediately after the injection. It can be activated to emit radio waves. Also switch 34
By adjusting the timing at which the firing signal is sent to the scube 21, the erroneous firing of the injection-type electronic device 3 before the transmission of the information signal can be prevented.

Various modifications are possible in implementing the present invention. For example, in the above-described embodiment, the reception completion determination unit 32 and the switch 34 are used to prevent erroneous emission of the injection-type electronic device. However, when the time required to transfer the information signal is extremely short, these circuits are used. Alternatively, the electromotive force of the thermal battery 31 may be directly applied to the scube 21. That is, in such a configuration, generally,
It is necessary to raise the electromotive force of the thermal battery 31 sufficiently until the ignition and explosion of 21, so it takes a relatively long time of 10 to 20 msec, whereas the time required to transfer the information signal is on the order of microseconds In such a case, after transmitting the firing signal, if the information signal is immediately transferred using the time when the electromotive force of the thermal battery 31 is not sufficiently increased, the scube 21 can explode before exploding. The transfer of the information signal can almost certainly be completed.

Further, as another modified example, in the above-described embodiment, the power source for operating the reception determination unit 32 and the internal power source is obtained from the thermal battery 31, but the power source is not limited to this, and the power source operates with these weak powers. Therefore, a general battery may be separately provided instead of the thermal battery that generates a large amount of power, and these circuits may be constantly operated.

[Effects of the Invention] As described above, according to the present invention, since the emission signal and the information signal transmitted from the control device to the injection-type electronic device are transmitted through the common signal line, the interface of these signals is provided. The volume of the unit can be reduced, and the overall size of the injection-type electronic device can be reduced. In addition, by igniting the explosive via a switch that is turned on when the reception of the information signal is completed, erroneous firing of the injection-type electronic device before information transfer can be reliably prevented. Further, by transmitting the firing signal and operating the thermal battery to transmit the information signal during the steady state, the time required for actual firing can be minimized.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the principle according to the present invention, FIG. 2 is a block diagram showing a main part of an injection device of an injection type electronic device as one embodiment of the present invention, and FIG. FIG. 4 is a block diagram, and FIG. 4 is a time chart for explaining the operation of the embodiment device. In the figure, 1 ... injection device 2 ... magazine 3 ... injection type electronic device 4 ... external equipment 21 ... scube (injection powder) 22 ... electric bridge wire 31 ... thermal battery 32 ... reception complete Judgment part 33 ... Ignition filament 34 ... Switch 35 ... Electronic circuit

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) F41H 11/02 F41F 3/06 F41J 2/00

Claims (3)

(57) [Claims] 1. An injection-type electronic device (11) for driving an internal circuit (16) using a thermal battery (14) as an internal power supply, and the injection-type electronic device (11) is loaded to explode an explosive (15). Thus, a magazine section (12) for emitting the injection-type electronic device (11), a start signal of the thermal battery (14) and the internal circuit (16) are set for the injection-type electronic device (11). And a control unit (13) for transmitting an information signal through a common signal line (17). The injection type electronic device (11) sends the electromotive force of the thermal battery (14) activated by the activation signal as an ignition signal to the magazine (12).
A signal transmission method for an injection device of an injection-type electronic device, wherein the signal is sent to an explosive (15). 2. The injection-type electronic device (11) includes a switch (19) for interrupting the transmission of the ignition signal, and a reception completion determining unit (18) for determining completion of reception of the information signal. 2. The injection-type electronic device according to claim 1, wherein the ignition signal transmission to the magazine unit is prohibited by the switch until the reception completion determination unit determines that the reception of the information signal is completed. Signal transmission method for injection device. 3. An injection-type electronic device (16) for driving an internal circuit (16) by using a thermal battery (14) as an internal power supply, and the injection-type electronic device (11) is loaded to explode an explosive (15). A magazine section (12) for ejecting the injection-type electronic device (11) by this, a start signal of the thermal battery (14) and information set in the internal circuit (16) in the injection-type electronic device (11) A control unit (13) for transmitting a signal through a common signal line (17), wherein the control unit (13) transmits the information signal following the start signal via the common signal line (17). A signal line (20) for transmitting an ignition signal from the injection-type electronic device (11) to the explosive of the magazine (12) is provided, and the thermal battery (14) activated by the activation signal is provided. Injection type configured to send the electromotive force of the above as an ignition signal to the explosive (15) of the magazine section (12) via the signal line (20). Electronic device injection device.