KR890005406Y1 - Burglar-alarm system for briefcase - Google Patents

Abstract

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Description

Burglar Alarm for Briefcase

1 is a block diagram of the present invention.

2 is an embodiment of the present invention.

3 is an electrical diagram of a radio transmitter in the present invention.

4 is an electrical diagram of a wireless receiver in the present invention.

5 is an electric diagram of a main controller, a high voltage generator, a smoke generator and an alarm generator in the present invention.

* Explanation of symbols for main parts of the drawings

1 wireless transmitter 2 controller

3: wireless receiver 32: rechargeable battery

33: electronic combination lock 34: main controller

35 high voltage generator 36 alarm generator

37: smoke circuit 38: smoke container

39: Powerful Wireless Transmitter

The present invention relates to a burglar alarm for a briefcase. It can be seen that all briefcases on the market use only combination locks or chains as a means of preventing theft. However, this means is ineffective in preventing theft.

It is therefore an object of the present invention to provide a burglar alarm device for a briefcase for preventing or mitigating those mentioned above. The primary object of the present invention is to provide a burglar alarm device for a briefcase that generates a high voltage current when the molars or combination locks are incorrectly dialed, and another object of the present invention is to draw the attention of pedestrians in the above situations. To provide a burglar alarm device for a briefcase that activates an alarm and generates smoke material, and to provide a wireless receiver suitable for a portable transmitter so that all of the above means are activated when the distance between the receiver and the transmission period exceeds the current distance. will be.

A further object of the present invention is to provide a burglar alarm device for a briefcase that is easy to use.

Notable features in the characteristics, objects, and advantages of the present invention will be readily understood as detailed description associated with the preferred embodiments of the present invention shown by way of example in the accompanying drawings and examples. It should be apparent, however, that the drawings are for illustration and description only and are not intended to be limiting to the invention.

In order to facilitate understanding of the principles of the present invention, specific terms are used to refer to the embodiments shown in the drawings and to describe the embodiments. It is to be understood that there are no intentions to apply the principles of the present invention which may be considered by those skilled in the art with further modifications and modifications within the apparatus shown in the limitations of the scope of the present invention and which are related to the present invention.

Referring to FIG. 1, a burglar alarm device for a briefcase of the present invention is usually composed of a radio transmitter 1 and a controller 2 mounted in a briefcase, the controller 2 being a radio receiver 3 , Secondary battery 32, electronic combination lock 33, main controller 34, high voltage generator 35, alarm generator 36, smoke circuit 37, smoke container 38 and powerful transmitter 39 Consists of The secondary battery 32 of the control device 2 is supplied with power to all devices and can be recharged whenever necessary. The inspection section of the control device 2 is constituted by an electronic combination lock 33 of the radio receiver 3, which is combined with the radio transmitter 1 described above to constitute a distance measuring device. If the distance exceeds the effective range of the receiver 3, the output of the receiver 3 fluctuates and in turn activates the main controller 34. In use, the transmitter 1 can be conveniently placed in the holder's pocket. If the briefcase is stolen by the molester, the generators in the briefcase are activated to scare the molester out. The electronic combination lock 33 is also mounted on the briefcase, and if the code number of the combination lock 33 is incorrect the generators will also be activated. As mentioned above, by two methods the device provides an effective theft alarm.

The driving part of the present invention is composed of other elements of the control device 2, and the main controller 34 changes the operation signal of the above-described inspection part into a control signal to operate the other elements.

The four functions of the device are described in detail below.

1.high voltage

The high voltage generator 35 provides a high voltage between the two electrodes 351, 352. As shown in FIG. 2, the two electrodes 351 and 352 are composed of a sawtooth copper thin film and mounted inside the surface of the briefcase. Due to the tip discharges of the electrodes 351 and 352, the molars cannot contact the briefcase 4, thereby preventing the briefcase from being stolen.

2. Alarm

When the alarm generator 36 is activated, the loudspeaker 365 generates a peculiar sound to attract the attention of the pedestrian in order to threaten the molars.

3. Smoke

Fire the colored fumes on the surface of the briefcase, thereby attracting pedestrian attention.

4. Transmitter

By the electric circuit, the briefcase is detected by the tracking station 12 by generating a strong radio wave.

The four functions described above operate simultaneously and even if any one of them fails, the other three functions still operate effectively to ensure the safety of the briefcase.

Referring to FIG. 3, an electric circuit of the radio transmitter 1 is shown. The radio transmitter 1 includes a battery 11, a carrier generator, a coder 111, and a switch 112. As shown in FIG. The switching elements of the switch 112 are all connected inside the coder 111 to set the modulation scheme of the coder 111. The output of the coder 111 generates a password modulated signal, and the modulated signal is modulated by a transistor 113 and an induction coil to modulate a carrier signal to generate a modulated wave from the induction coil 114 in the transmitter 1. And a generator 114 and a condenser 115-117.

The transmitter 1 is operated in microwave and when the switching state of the switch 112 is changed, the modulation scheme is changed to prevent confusion by other receivers.

4 shows the electrical circuit of the receiver 3, which is composed of a secondary battery 32, a decoder 311, a switch 312 and several circuit elements. The receiving circuit element is composed of a high frequency amplifying circuit and a local oscillating circuit. The high frequency amplifying circuit is composed of transistors 314 and 315 and capacitors 316 and 317. The local oscillating circuit is composed of an induction coil 318. When an external signal is received by the antenna 31, the signal modulates the local oscillation frequency to shift the carrier frequency. After being detected, a signal is sent by the switch 312 to the input side of the decoder 311 for comparison with the decoder strategy in the decoder 311.

Since the switch 312 has a password like the transmitter 1, the output is switched to the high voltage transmitted to the transistor 313 via the base of the transistor. Therefore, when the transmitter 1 is located within the effective range of the receiver 3, the collector of the transistor 313 is brought into a low voltage state. When the receiver 1 is located within the effective range of the receiver 3, the collector of the transistor 313 goes into a low voltage state. When the receiver 1 is located outside the effective range of the receiver 3, the outputs TB1 and TB2 of the receiver 3 pass through the constant power source and the collector of the transistor 313, and the output signal is the main gear 34. ) Is a control signal.

Referring to FIG. 5, in FIG. 5, an electric circuit of the main controller 34, the high voltage generator 35, the smoke generator 37 and the alarm generator 36 is shown. The main controller 34 is composed of two photo-clutches 341 and 342, two transistors 343 and 344, and two relays 345 and 346. The photodiodes of the two photo-clutches 341 and 342 are connected in series. It is connected to the other side of the input signals TB1 and TB2. Two transistors of the optical clutches 341 and 342 drive two transistors 343 and 344, respectively, and collectors of the transistors 343 and 344 respectively drive the individual relays 345 and 346 coils. When the relays 345 and 346 reach a normal closing point, they are supplied to the generator as a constant power source. If the main controller 34 is not operated, it may provide an electric force by itself to operate other generators. When the main controller 34 is activated, the power of the generators is cut off to stop the generators, and when the receiver 3 is in the normal state, the main controller 34 cuts off the power of the generators, and the receiver 3 The generators are activated to provide an alarm effect when is not activated.

The high voltage generator 35 consists of two transistors 353 and 354 and a transformer 355 where the constant power source is first converted to alternating current and then raised by the transformer 355. It is then rectified by rectifier 356 and transmitted to pulse generator 358, which is comprised of a silicon controlled rectifier, phase change resistors and capacitors.

In addition, the high current of the high voltage generator is converted into a pulse signal induced in the secondary winding of the pulse transformer 357, the output of the winding is discharge electrodes (351, 352) and a high voltage current is generated by the electrode. This prevents anyone from touching the briefcase.

The fume circuit 37 includes a timer 71, a multi-arlington transistor 372, and a heating coil 373, wherein the timer 371, the resistors 375, 376, and the condenser 374 are the multi-arlington transistor ( An oscillation circuit is configured to provide an oscillation signal to 372). By driving the collector of the transistor 372, the movable coil 373 is heated, and colored fumes are generated to attract the attention of pedestrians to the fume container 38.

The alarm generator 36 includes two transistors 361 and 362 that constitute an unstable multiple tuned oscillator for operating the amplifying transistor 36 and generates the transformer 364 and the loudspeaker 365 to generate a sound of a specific frequency. ) In turn.

Although the subject innovation has been described in detail, the description of the subject innovation can vary greatly in illustration and configuration, and the combination and arrangement of elements should be distinguished without departing from the spirit and scope of the subject innovation in the following claims. It is obvious.

Claims (1)

A burglar alarm device for a briefcase having a portable radio transmitter and a control device mounted in the briefcase, the control device comprising: a radio receiver, a rechargeable battery, an electronic combination lock, a master controller, a high voltage generator, an alarm generator, a smoke circuit, and smoke A container and a powerful wireless transmitter, and the rechargeable battery supplies power to all the components, and the control device includes a test unit composed of the wireless receiver and the electronic combination lock, wherein the wireless receiver includes a distance measuring device. When combined with the radio transmitter, the output of the radio receiver changes when the distance between the radio and the transmitter exceeds the effective range of the receiver, and the main controller is operated. As a result, when theft or incorrect electronic combination lock is dialed. The burglar alarm is activated on the surface of the briefcase. By this voltage generated and to place a briefcase without groping can not help, as well as burglar alarm device for a paper bag, comprising a step of having to operate the alarm, and the colored smoke water is released to draw the attention of pedestrians.